Water circuit connection structure for filtration device and filtration device

Abstract

This utility model relates to the field of water purification technology, specifically providing a water circuit connection structure and filtration device for a filtration system. It aims to solve the problem of leakage risks affecting user experience in existing catering machines when filter cartridges are connected in series and parallel. The water circuit connection structure of this application includes a filter cartridge mounting component, a connecting component, and a sealing component. The filter cartridge mounting component includes a valve head and a pipe assembly. The valve head is adapted to and can be sealed to the filter cartridge assembly. The pipe assembly has a first channel and a second channel. The first channel communicates with the raw water channel of the filter cartridge assembly, and the second channel communicates with the purified water channel of the filter cartridge assembly. The connecting component is adapted to the first and second channels. The sealing component is used to seal at least one end of the first channel and / or the second channel. The pipe assembly and the valve head are integrally formed, and the side wall of the valve head has no holes. This application can customize the series and parallel connection between filter cartridges according to actual needs, while having strong pressure resistance and eliminating the risk of leakage.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, specifically providing a water circuit connection structure and a filtration device for use in a filtration apparatus. Background Technology

[0002] To meet water demand in different scenarios and improve the flexibility and efficiency of equipment, existing filtration devices such as catering machines and commercial water purifiers usually require multiple filter cartridges to be connected in series and / or in parallel.

[0003] Taking catering machines as an example, when existing catering machines are installed in series and parallel, different valve heads are usually required to achieve the series and parallel connection of multiple filter elements. Different molds are needed to produce different valve heads, resulting in high production costs. Although some catering machines also use the same valve head, the water circuit connectors need to be set with intermediate channels to achieve the bridging between two adjacent filter elements, resulting in a complex valve head structure and the risk of water leakage. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems to at least a certain extent, that is, to solve the problem that the existing catering machines have the risk of water leakage when the filter elements are connected in series and parallel, which affects the user experience.

[0005] In a first aspect, the present invention provides a water circuit connection structure for a filtration device, the water circuit connection structure comprising: a filter element mounting component, which includes a valve head and a pipe assembly disposed on the valve head, the valve head being adapted to and capable of sealingly connecting with the filter element assembly, the pipe assembly having a first channel and a second channel, the first channel communicating with the raw water channel of the filter element assembly so that water in the first channel flows into the raw water channel, and the second channel communicating with the purified water channel of the filter element assembly so that purified water filtered by the filter element assembly flows out from the second channel; a connecting member, the connecting member being used to connect the first channel or the second channel of one of two adjacent filter element mounting components to the first channel or the second channel of the other filter element mounting component; and a sealing member, which is used to seal at least one end of the first channel and / or the second channel; wherein, the pipe assembly is integrally formed with the valve head and the side wall of the valve head has no holes.

[0006] In the preferred embodiment of the water circuit connection structure for the above-mentioned filtration device, a first engaging structure is provided on the side of the valve head away from the pipe assembly, and a second engaging structure adapted to the first engaging structure is provided on the filter element assembly. The first engaging structure and the second engaging structure cooperate to enable the filter element assembly to be sealed and installed on the valve head.

[0007] In the preferred technical solution of the water circuit connection structure for the above-mentioned filtration device, the first engaging structure has at least two first engaging parts, and the at least two first engaging parts are centrally symmetrical about the center of the valve head. The second engaging structure has at least two second engaging parts, and the second engaging parts are arranged in a one-to-one correspondence with the first engaging parts.

[0008] In the preferred embodiment of the water circuit connection structure for the above-mentioned filtration device, the pipe assembly includes a first pipe body and a second pipe body, wherein the first pipe body forms the first channel, the second pipe body forms the second channel, and the ends of the first pipe body and the second pipe body are separated from each other; and / or, the water circuit connection structure further includes a support member, wherein the valve head can be fixed on the support member, and the support member is also provided with a mounting hole adapted to the valve head, wherein, when installed, the filter element assembly can pass through the mounting hole and be sealed to the valve head.

[0009] In the preferred embodiment of the water circuit connection structure for the above-mentioned filtration device, the water circuit connection structure further includes a locking member, wherein: the connecting member and / or the blocking member are provided with locking grooves adapted to the locking member, and the first pipe body and / or the second pipe body are provided with clearance holes adapted to the locking member; when installed, the locking member passes through the clearance hole and engages in the locking groove, so that the connecting member and / or the blocking member connects or blocks the first pipe body and / or the second pipe body; or, the first pipe body and / or the second pipe body are provided with locking grooves adapted to the locking member, and the connecting member and / or the blocking member are provided with clearance holes adapted to the locking member; when installed, the locking member passes through the clearance hole and engages in the locking groove, so that the connecting member and / or the blocking member connects or blocks the first pipe body and / or the second pipe body.

[0010] In the preferred embodiment of the water circuit connection structure for the above-mentioned filtration device, a detection interface is provided on the first pipe body and / or the second pipe body. The detection interface is used to install a detection component, and the detection component is used to detect the water quality or water pressure in the first pipe body and / or the second pipe body.

[0011] In the preferred embodiment of the water circuit connection structure for the above-mentioned filtration device, the water circuit connection structure further includes a pipe plug, which is adapted to the detection interface and can seal the detection interface.

[0012] In the preferred embodiment of the water circuit connection structure for the above-mentioned filtration device, the support structure is further provided with a fixing structure, which is used to fix the support structure on the filtration device; and / or, the number of mounting holes is multiple and the multiple mounting holes are provided one-to-one with the filter element mounting parts, so that when installed, the multiple filter element assemblies can pass through the mounting holes and be sealed to the valve head.

[0013] In a second aspect, the present invention also provides a filtration device, the filtration device comprising a filter element assembly and a water circuit connection structure for the filtration device as described in any of the above claims, wherein the filter element assembly comprises a filter bottle, a filter bottle cap and a filter element disposed within the filter bottle, and the valve head is adapted to the filter bottle cap and is capable of sealingly connecting with the filter bottle cap.

[0014] In a preferred embodiment of the above-mentioned filtration device, the filter bottle and the filter bottle cap are screwed together. The filter bottle and / or the filter bottle cap are provided with a disassembly structure, allowing the user to rotate the filter bottle cap relative to the filter bottle using this structure, thereby installing the filter bottle cap onto the filter bottle or removing the filter bottle cap from the filter bottle. Alternatively, the filter bottle and the filter bottle cap are screwed together, wherein the filter element assembly further includes an anti-loosening member, which, when installed, prevents the filter bottle cap from rotating relative to the filter bottle. And / or, the bottom of the filter bottle is provided with a rinsing channel, and the filter element assembly further includes a rinsing connector, one end of which is located within the rinsing channel and is sealed to the rinsing channel.

[0015] When adopting the above-mentioned preferred technical solution, by setting filter element mounting components, connectors, and sealing components, it is possible to achieve series and / or parallel connection of two adjacent filter element assemblies. This facilitates the personalized implementation of series and parallel connection between filter element assemblies according to actual needs, improving installation convenience. At the same time, setting the pipe assembly to be integrally formed with the valve head not only improves the production efficiency of the filter element mounting components but also increases the pressure resistance of the filter element mounting components, avoiding loosening and leakage between the pipe assembly and the valve head. In addition, since there are no holes on the side wall of the valve head, the structural strength of the valve head is higher, and the pressure resistance is stronger, preventing leakage from the valve head and improving the user experience.

[0016] Furthermore, by setting a first engaging structure on the valve head and a second engaging structure on the filter element assembly, rapid installation and disassembly between the filter element assembly and the valve head can be achieved, improving the installation and disassembly efficiency of the filter element assembly. By setting at least two first engaging parts to be centrally symmetrical about the center of the valve head, when the filter element is installed in series or parallel, and when the valve head is rotated 180° before installation, the first engaging structure on the valve head can still cooperate with the second engaging structure to install the filter element assembly onto the valve head. In this way, the number of molds required for the filter element mounting parts can be reduced, thus lowering the production cost of the filter element mounting parts.

[0017] Furthermore, by configuring the tube assembly to include a first tube body and a second tube body, the processing difficulty of the tube assembly can be reduced. By setting the ends of the first tube body and the second tube body to be separated from each other, the ends of the first tube body and the second tube body are prevented from pulling on each other during the injection molding process, thereby avoiding mutual influence between the first tube body and the second tube body. This results in higher dimensional stability of the first tube body and the second tube body and a lower defect rate.

[0018] Furthermore, compared to connecting the first and second pipe bodies with the connecting and clamping parts via threads, connecting the first and second pipe bodies with the connecting and clamping parts via clamping parts allows for prior alignment of the first and second pipe bodies with the connecting or clamping parts before connection via clamping parts, improving installation accuracy. Moreover, since there is no need for rotation between the first and second pipe bodies and the connecting or sealing parts to achieve connection, misalignment during installation is avoided, making installation more convenient and faster, and significantly improving the installation efficiency between the first and second pipe bodies and the connecting or clamping parts.

[0019] Furthermore, by setting detection interfaces on the first and / or second pipe bodies, the installation of detection components can be facilitated, thereby making it easier to detect the water quality or water pressure in the first and / or second pipe bodies, further improving the user experience. When it is not necessary to install detection components at the detection interfaces, the detection interfaces can be sealed with pipe plugs to achieve personalized installation of detection components.

[0020] Furthermore, by setting up support components, on the one hand, the series and parallel water circuits can be supported and fixed, making it convenient for the series and parallel water circuits to be fixed as a whole inside the water purification equipment. On the other hand, the filter element mounting components can be pre-fixed on the fixing components, and then the filter element assembly can be installed on the valve head, realizing the pre-installation of the filter element mounting components and improving the installation convenience of the filtration device.

[0021] Furthermore, the filter device further provided based on the aforementioned water circuit connection structure for the filter device, since it includes the aforementioned water circuit connection structure for the filter device, thus possesses the beneficial effects of the aforementioned water circuit connection structure for the filter device. Compared with the previous improved filter device, the filter device of this utility model has simpler series and parallel connection, lower cost, stronger pressure resistance, lower risk of leakage, and better user experience. Attached Figure Description

[0022] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a schematic diagram of the water circuit connection structure and filter element assembly of this utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the water circuit connection structure and filter element assembly of this utility model. Figure 2 The diagram shows the positional relationship of each component after the concealed pipe plug and clamping parts are installed.

[0025] Figure 3 This is a schematic diagram of the water circuit connection structure and filter element assembly of this utility model. Figure 3 ;

[0026] Figure 4 yes Figure 3 A cross-sectional view along line AA shows the series-parallel water circuit structure of a filter device in one embodiment.

[0027] Figure 5 yes Figure 3 A cross-sectional view along line AA shows the series-parallel water circuit structure of a filter device according to another embodiment.

[0028] Figure 6 A schematic diagram of the filter element mounting component of this utility model;

[0029] Figure 7 This is a schematic diagram of the waterway connection structure of this utility model. Figure 1 ;

[0030] Figure 8 This is a schematic diagram of the waterway connection structure of this utility model. Figure 2 ;

[0031] Figure 9 This is a schematic diagram of the filter element assembly of this utility model. Figure 1 ;

[0032] Figure 10 This is a schematic diagram of the filter element assembly of this utility model. Figure 2 ;

[0033] Figure 11 yes Figure 10 A magnified view of a portion of point B in the middle;

[0034] Figure 12 This is a schematic diagram of the structure of the filter bottle of this utility model;

[0035] Figure 13 yes Figure 12 A magnified view of a portion of point C.

[0036] List of reference numerals in the attached diagram:

[0037] 1. Filter element mounting component; 11. Valve head; 111. First engaging part; 12. Pipe assembly; 121. First pipe body; 1211. First channel; 122. Second pipe body; 1221. Second channel; 123. Clearance hole; 124. Detection interface; 125. Pipe plug; 13. Connecting component; 14. Sealing component; 15. Clamping groove; 16. Clamping component; 17. Connecting component; 18. Support component; 181. Mounting hole; 182. Fixing structure; 83. Fastener; 2. Filter element assembly; 21. Filter bottle cap; 211. Protruding structure; 212. Second engaging part; 213. First disassembly hole; 214. First insertion hole; 22. Filter bottle; 221. Holding part; 222. Second disassembly hole; 223. Second insertion hole; 224. Flushing channel; 23. Filter element; 24. Flushing connector; 241. Locking groove; 25. Anti-loosening pin; 251. U-shaped pin; 252. Straight pin; 26. Locking element. Detailed Implementation

[0038] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0039] It should be noted that in the description of this utility model, terms such as "upper," "lower," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] like Figures 1 to 8 As shown, the water connection structure of this utility model includes a filter element mounting component 1, a connecting component 13, and a sealing component 14. The filter element mounting component 1 includes a valve head 11 and a pipe assembly 12 disposed on the valve head 11. The valve head 11 is adapted to the filter element assembly 2 and can be sealed to the filter element assembly 2. The pipe assembly 12 has a first channel 1211 and a second channel 1221. The first channel 1211 is connected to the raw water channel of the filter element assembly 2 so that water in the first channel 1211 flows into the raw water channel. The second channel 1221 is connected to the purified water channel of the filter element assembly 2 so that purified water filtered by the filter element assembly 2 flows out from the second channel 1221.

[0042] The connecting member 13 is adapted to the first channel 1211 and the second channel 1221. The connecting member 13 is used to connect the first channel 1211 or the second channel 1221 of one of the two adjacent filter element mounting members 1 with the first channel 1211 or the second channel 1221 of the other filter element mounting member 1. The sealing member 14 is used to seal at least one end of the first channel 1211 and / or the second channel 1221.

[0043] The pipe assembly 12 is integrally formed with the valve head 11, and there are no holes on the side wall of the valve head 11.

[0044] By configuring the filter element mounting component 1, the connector 17, and the sealing component 14, it is possible to connect two adjacent filter element assemblies 2 in series and / or in parallel. This facilitates customized series and parallel connections between filter element assemblies 2 according to actual needs, improving installation convenience. At the same time, by making the pipe assembly 12 integrally formed with the valve head 11, not only can the production efficiency of the filter element mounting component 1 be improved, but the pressure resistance of the filter element mounting component 1 can also be increased, preventing loosening and leakage between the pipe assembly 12 and the valve head 11. In addition, since there are no holes on the side wall of the valve head 11, the structural strength of the valve head 11 is higher, and the pressure resistance is stronger, preventing leakage and improving the user experience.

[0045] When two or more filter element assemblies 2 need to be installed in series or in parallel, it is only necessary to connect or block the first channel 1211 and the second channel 1221 of different filter element mounting parts 1 through the connecting part 13 and the blocking part 14. There is no need to set different filter element mounting parts 1 to achieve the series or parallel connection of filter element assemblies 2.

[0046] It should be noted that in the existing technology, because the rotating filter bottle has an interlocking structure, it is an undercut in the injection mold. During injection molding, it needs to be formed with the help of the mold structure. For example, a slider (side opening) or a front and rear mold interlocking method (top opening) is used to form an interlocking structure on the inner side of the valve head. However, both of the above methods will form holes in the side wall of the valve head, affecting the structural strength and pressure bearing capacity of the valve head. There is also a method of splitting the valve head into two parts and then reassembling them to form a valve head with an interlocking structure on the inner side wall. However, the connection still has weak pressure bearing capacity and there is a risk of water leakage.

[0047] In this application, by improving the mold and using an internal mechanism to demold the filter element mounting part 1, not only can the valve head 11 of the filter element mounting part 1 be integrally formed with the pipe assembly 12, but also the inner wall of the valve head 11 can be free of holes, thereby improving the pressure bearing capacity of the filter element mounting part 1 and reducing the risk of water leakage.

[0048] It should be noted that the connecting member 13 can be used to connect the first channel 1211 and the second channel 1221 of two adjacent filter element mounting parts 1 to each other, or it can be used to connect the first channel 1211 of two adjacent filter element mounting parts 1 to each other, or it can be used to connect the second channel 1221 of two adjacent filter element mounting parts 1 to each other. Those skilled in the art can set the connecting member 13 at different positions as needed.

[0049] It should also be noted that, in practical applications, those skilled in the art do not impose any limitations on the specific method of sealing the valve head 11 and the filter element assembly 2. For example, the valve head 11 and the filter element assembly 2 can be connected by threads to achieve a sealed connection, or the valve head 11 and the filter element assembly 2 can be connected by snap-fit ​​to achieve a sealed connection, or the valve head 11 and the filter element assembly 2 can be connected by a clamping element to achieve a sealed connection, and so on. Such adjustments and changes to the specific connection method of sealing the valve head 11 and the filter element assembly 2 do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0050] Preferably, such as Figure 6 and Figure 8 As shown, a first engaging structure is provided on the side of the valve head 11 away from the pipe assembly 12, and a second engaging structure adapted to the first engaging structure is provided on the filter element assembly 2. The first engaging structure and the second engaging structure cooperate to seal and install the filter element assembly 2 onto the valve head 11.

[0051] This setup enables quick installation and disassembly of the filter element assembly 2 and the valve head 11, improving the efficiency of installation and disassembly of the filter element assembly 2.

[0052] Preferably, such as Figure 6 and Figure 8 As shown, the first engaging structure has at least two first engaging portions 111, and the at least two first engaging portions 111 are centered on the valve head 11 (e.g., Figure 8 In the middle, point O is the center of the valve head) is centrally symmetrical, and the second engaging structure has at least two second engaging parts 212 and the second engaging parts 212 are arranged in a one-to-one correspondence with the first engaging parts 111.

[0053] By setting at least two first engaging parts 111 to be centrally symmetrical about the center of the valve head 11, when the filter element is installed in series or parallel, and after the filter element mounting part 1 is rotated 180° for installation, the first engaging structure on the valve head 11 can still cooperate with the second engaging structure to install the filter element assembly 2 onto the valve head 11. In this way, there is no need to set two kinds of filter element mounting parts 1, which can save the number of molds for the filter element mounting parts 1 and reduce the production cost of the filter element mounting parts 1.

[0054] It should be noted that, in practical applications, this utility model does not impose any limitations on the specific configuration type of the first engaging structure, as long as it is centrally symmetrical about the center of the valve head 11. For example, the first engaging structure can be configured to include two first engaging parts 111, wherein the two first engaging parts 111 are centrally symmetrical about the center of the valve head 11; or, the first engaging structure can be configured to include four engaging parts, wherein the four engaging parts are centrally symmetrical about the center of the valve head 11; or, the first engaging structure can be configured to include more engaging parts, wherein multiple engaging parts are centrally symmetrical about the center of the valve head 11, and so on. Such adjustments and changes to the specific configuration type of the first engaging structure do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0055] It should be noted that, in practical applications, those skilled in the art can configure the pipe assembly 12 to include a first pipe body 121 and a second pipe body 122, with a first channel 1211 formed in the first pipe body 121 and a second channel 1221 formed in the second pipe body 122. Alternatively, the pipe assembly 12 can be configured to include a body, with flow channels opened within the body to form the first channel 1211 and the second channel 1221, and so on. Such adjustments and changes to the specific configuration of the pipe assembly 12 do not deviate from the principles and scope of this utility model and should all be included within the protection scope of this utility model.

[0056] Preferably, such as Figures 4 to 6 As shown, the tube assembly 12 includes a first tube body 121 and a second tube body 122. A first channel 1211 is formed in the first tube body 121, and a second channel 1221 is formed in the second tube body 122. The ends of the first tube body 121 and the second tube body 122 are separated from each other.

[0057] By configuring the tube assembly 12 to include a first tube body 121 and a second tube body 122, the processing difficulty of the tube assembly 12 can be reduced. By setting the ends of the first tube body 121 and the second tube body 122 to be separated from each other, the ends of the first tube body 121 and the second tube body 122 are prevented from pulling on each other during the injection molding process, thereby avoiding mutual influence between the first tube body 121 and the second tube body 122. This results in higher dimensional stability of the first tube body 121 and the second tube body 122 and a lower defect rate.

[0058] It should be noted that the design is not limited to setting the ends of the first tube 121 and the second tube 122 to be separate from each other. For example, the ends of the first tube 121 and the second tube 122 can also be set to be connected to each other, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model. Of course, it is preferable to set the ends of the first tube 121 and the second tube 122 to be separate from each other.

[0059] It should also be noted that, in practical applications, those skilled in the art can configure the first tube 121 (or the second tube 122) to be connected to the connecting member 13 and the sealing member 14 via the clamping member 16, or the first tube 121 (or the second tube 122) to be connected to the connecting member 13 and the sealing member 14 via threads, or one of the first tube 121 (or the second tube 122) to be connected to the connecting member 13 and the sealing member 14 via the clamping member 16, and the other of the first tube 121 (or the second tube 122) to be connected to the connecting member 13 and the sealing member 14 via threads, etc. Such adjustments and changes to the specific connection method between the first tube 121 (or the second tube 122) and the connecting member 13 and the sealing member 14 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0060] Preferably, such as Figure 1 and Figure 2 , Figure 4 and Figure 5 As shown, the water connection structure of this utility model also includes a clamping member 16, a clamping groove 15 adapted to the clamping member 16 on the connecting member 13 and / or the sealing member 14, and a relief hole 123 adapted to the clamping member 16 on the first pipe body 121 and / or the second pipe body 122. When installed, the clamping member 16 passes through the relief hole 123 and is inserted into the clamping groove 15 so that the connecting member 13 connects the first pipe body 121 and / or the second pipe body 122, and the sealing member 14 seals the first pipe body 121 and / or the second pipe body 122.

[0061] Compared to connecting the first pipe body 121, the second pipe body 122 to the connecting member 13 and the clamping member 16 via threads, this configuration allows for prior alignment of the first pipe body 121, the second pipe body 122 with the connecting member 13 or the clamping member 16 before connection via the clamping member 16. This improves installation accuracy. Furthermore, since there is no need for rotation between the first pipe body 121, the second pipe body 122 and the connecting member 17 or the sealing member 14 to achieve the connection, misalignment during installation is avoided, making installation more convenient and faster, and greatly improving the installation efficiency between the first pipe body 121, the second pipe body 122 and the connecting member 13 or the clamping member 16.

[0062] It should be noted that the invention is not limited to providing locking grooves adapted to the locking member 16 on the connecting member 13 and / or the blocking member 14, or providing clearance holes adapted to the locking member 16 on the first tube body 121 and / or the second tube body 122. For example, locking grooves adapted to the locking member 16 can also be provided on the first tube body 121 and / or the second tube body 122, and clearance holes adapted to the locking member 16 can be provided on the connecting member 13 and / or the blocking member 14, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0063] Preferably, the connecting member 13 and / or the blocking member 14 are provided with a locking groove adapted to the locking member 16, and the first tube body 121 and / or the second tube body 122 are provided with a clearance hole adapted to the locking member 16.

[0064] Preferably, such as Figures 1 to 5 As shown, the water connection structure of this utility model also includes a connector 17. One end of the connector 17 is used to communicate with an external water channel, and the other end of the connector 17 is used to communicate with the first pipe body 121 or the second pipe body 122 of the filter element mounting component 1.

[0065] By setting connector 17, it is easy to connect the series and parallel waterway connection structure with the external waterway.

[0066] It should be noted that, in practical applications, one end of the connector 17 can be configured to have a locking groove adapted to the locking member 16, so that the connector 17 can communicate with the first tube 121 or the second tube 122 of the filter element mounting 1, and the other end of the connector 17 can be configured to have a threaded structure so that the connector 17 can communicate with the external water passage. Alternatively, both ends of the connector 17 can be configured to have locking grooves adapted to the locking member 16, wherein one end of the connector 17 is connected to the first tube 121 or the second tube 122 of the filter element mounting 1 through the locking member 16, and the other end of the connector 17 is connected to the external water passage through the locking member 16, etc. Such adjustments and changes to the specific configuration type of the connector 17 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0067] Preferably, such as Figures 1 to 5 As shown, the first end of the connector 17 is provided with a locking groove that is adapted to the locking member 16 so that the first end of the connector 17 can communicate with the first tube 121 or the second tube 122 of the filter element mounting member 1. The second end of the connector 17 is provided with a threaded structure so that the second end of the connector 17 can communicate with the external water passage.

[0068] With this configuration, on the one hand, the connector 17 can be adapted to the first tube 121 and the second tube 122 of the filter element mounting 1, thereby facilitating the connection between the connector 17 and the filter element mounting 1. On the other hand, the connector 17 can be adapted to the commonly used threaded interface of the external pipeline, thereby facilitating the connection between the connector 17 and the external water pipeline.

[0069] It should be noted that the external pipeline can be an inlet pipeline, that is, an external water source (tap water or water filtered by the filter element) flows into multiple filter element assemblies 2 arranged in series and / or in parallel through the inlet pipeline, or the external pipeline can also be an outlet pipeline, that is, water filtered by multiple filter element assemblies 2 arranged in series and / or in parallel flows out through the outlet pipeline.

[0070] Preferably, such as Figure 2 As shown, a detection interface 124 is provided on the first pipe body 121 and / or the second pipe body 122. The detection interface 124 is used to install a detection component, which is used to detect the water quality or water pressure in the first pipe body 121 and / or the second pipe body 122.

[0071] By providing a detection interface 124 on the first pipe body 121 and / or the second pipe body 122, the installation of the detection component can be facilitated, thereby making it easier to detect the water quality or water pressure in the first pipe body 121 and / or the second pipe body 122, further improving the user experience.

[0072] It should be noted that, in practical applications, this utility model does not limit the specific type of the detection component. For example, the detection component can be set as a water pressure detection component to detect the water pressure in the first pipe 121 and / or the second pipe 122, or it can be set as a water quality detection component to detect the water quality in the first pipe 121 and / or the second pipe 122, such as a TDS detection component, a conductivity meter, etc. Alternatively, the detection component can be set in any other possible form, etc. Such adjustments and changes to the specific setting type of the detection component do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0073] For example, the detection component is a TDS detection component.

[0074] Preferably, such as Figure 1 and Figure 7 As shown, the water connection structure of this utility model also includes a pipe plug 125, which is adapted to the detection interface 124 and can block the detection interface 124.

[0075] With this setup, when it is not necessary to install the detection component at the detection interface 124, the detection interface 124 can be sealed with the pipe plug 125, thus achieving personalized installation of the detection component.

[0076] Preferably, such as Figures 1 to 3 , Figure 7 and Figure 8 As shown, the water circuit connection structure of this utility model also includes a support member 18, and the valve head 11 can be fixed on the support member 18. The support member 18 is also provided with a mounting hole 181 that is adapted to the valve head 11. When installed, the filter element assembly 2 can pass through the mounting hole 181 and be sealed to the valve head 11.

[0077] By setting the support component 18, on the one hand, it can support and fix the series and parallel water circuits, making it convenient for the series and parallel water circuits to be fixed as a whole inside the water purification equipment. On the other hand, it can also pre-fix the filter element mounting component 1 on the fixing component, and then install the filter element assembly 2 on the valve head 11, realizing the pre-installation of the filter element mounting component 1 and improving the installation convenience of the filtration device.

[0078] It should be noted that, in practical applications, those skilled in the art can configure the valve head 11 to be snapped onto the support member 18, or the valve head 11 can be fixed onto the support member 18 by fasteners 183, or the valve head 11 can be glued onto the support member 18, etc. Such adjustments and changes to the specific fixing method of the valve head 11 onto the support member 18 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0079] Preferably, such as Figure 8 As shown, the water connection structure of this utility model also includes a fastener 183, and the valve head 11 is fixed to the support member 18 by the fastener 183.

[0080] It should be noted that, in practical applications, multiple mounting holes 181 adapted to the valve head 11 can be provided on the support member 18, so that multiple filter element assemblies 2 can be installed and fixed in the water purification equipment. Alternatively, only one mounting hole 181 adapted to the valve head 11 can be provided on the support member 18. When the filter element assemblies 2 are connected in series or in parallel, multiple support members 18 can be provided to install and fix the filter element assemblies 2 in the water purification equipment, etc. Such adjustments and changes to the specific configuration type of the support member 18 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0081] Preferably, such as Figure 8 As shown, there are multiple mounting holes 181, and each mounting hole 181 corresponds to a filter element mounting component 1. When installed, multiple filter element assemblies 2 can pass through the mounting holes 181 and be sealed to the corresponding valve head 11.

[0082] This design reduces the number of support components 18, thereby reducing the number of parts in the filter device. This not only improves the overall integrity of the filter device but also increases its installation efficiency.

[0083] Preferably, such as Figure 7 As shown, a fixing structure 182 is also provided on the support member 18, which is used to fix the support member 18 on the filter device.

[0084] By setting the fixing structure 182, it is easy to fix the support member 18 inside the housing of the filter device, thereby facilitating the installation and fixing of the water connection structure inside the filter device.

[0085] It should be noted that, in practical applications, those skilled in the art can configure the fixing structure 182 as a hanging hole, and correspondingly, the housing of the filter device is provided with a hook adapted to the hanging hole. By suspending the hanging hole on the hook, the support member 18 is fixed in the housing of the filter device. Alternatively, the fixing structure 182 can be configured as a hook, and correspondingly, the housing of the filter device is provided with a hanging hole adapted to the hook. By suspending the hook in the hanging hole, the support member 18 is fixed in the housing of the filter device. Or, the fixing structure 182 can be configured as a locking hole, and the locking member passes through the locking hole and is fixed in the housing of the filter device, etc. Such adjustments and changes to the specific structural type of the fixing structure 182 do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0086] Preferably, such as Figure 7 As shown, the fixing structure 182 is a hanging hole, and the housing of the filter device is provided with a hook that matches the hanging hole. The support member 18 is fixed in the housing of the filter device by suspending the hanging hole on the hook.

[0087] It should be noted that in practical applications, the number of hanging holes can be set to only one, or two, or multiple, etc. Such adjustments and changes to the specific number of hanging holes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0088] Preferably, such as Figure 7 As shown, there are multiple hanging holes, with at least two hanging holes spaced apart horizontally and at least two hanging holes spaced apart vertically.

[0089] By setting the number of hanging holes to multiple, the installation stability of the support member 18 within the housing can be improved, thereby improving the installation stability of the filter element assembly 2 within the housing.

[0090] In a second aspect, the present invention also provides a filtration device, the filtration device comprising a filter element assembly 2 and a water circuit connection structure for the filtration device as described in any one of the above.

[0091] It should be noted that in practical applications, this utility model does not limit the specific type of the filtration device. For example, the filtration device can be set as an under-sink water purifier, or as a countertop water purifier, or as a catering machine, etc. Such adjustments and changes to the specific type of the filtration device do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0092] Preferably, the filtration device is a food service machine.

[0093] Specifically, such as Figures 9 to 13 As shown, the filter element assembly 2 includes a filter bottle 22, a filter bottle cover 21, and a filter element 23 disposed inside the filter bottle 22. The valve head 11 is adapted to the filter bottle cover 21 and can be sealed to the filter bottle cover 21.

[0094] Specifically, the second engaging structure is provided on the filter bottle cover 21, and the first engaging structure cooperates with the second engaging structure to seal the filter bottle cover 21 onto the valve head 11.

[0095] It should be noted that this utility model does not limit the specific number of filter element assemblies 2 arranged in series and / or parallel in the filtration device. Those skilled in the art can match different numbers of filter element assemblies 2 according to the actual flow rate and filtration requirements.

[0096] like Figures 1 to 5 As shown, the filtration device includes four filter element assemblies 2, which are connected in series and / or in parallel through a water circuit connection structure.

[0097] It should be noted that all four filter element assemblies 2 can be configured in series, or in parallel, or at least two can be configured in series or at least two in parallel (e.g., Figure 4 and Figure 5 As shown, those skilled in the art can make adaptive adjustments according to actual needs, etc. Such flexible adjustments and changes do not deviate from the principles and scope of this utility model and should be included within the protection scope of this utility model.

[0098] It should also be noted that, in practical applications, those skilled in the art can set the filter bottle cap 21 and the filter bottle 22 to a snap-fit ​​connection, or they can set the filter bottle cap 21 and the filter bottle 22 to a screw-fit connection, etc. Such adjustments and changes to the specific connection method between the filter bottle cap 21 and the filter bottle 22 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0099] Preferably, the filter bottle 22 and the filter bottle cover 21 are screwed together, wherein the filter bottle 22 and / or the filter bottle cover 21 are provided with a disassembly structure so that the user can use the disassembly structure to rotate the filter bottle cover 21 relative to the filter bottle 22, thereby installing the filter bottle cover 21 onto the filter bottle 22 or removing the filter bottle cover 21 from the filter bottle 22.

[0100] It should be noted that the disassembly structure can be provided only on the filter bottle 22, or only on the filter bottle cap 21, or both the filter bottle 22 and the filter bottle cap 21 can be provided simultaneously, etc. Such adjustments and changes to the specific positions of the disassembly structure on the filter bottle 22 and the filter bottle cap 21 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0101] Preferably, such as Figures 9 to 13 As shown, the filter bottle cap 21 is provided with a first disassembly structure, and the filter bottle 22 is provided with a second disassembly structure, so that the user can use the first disassembly structure and / or the second disassembly structure to rotate the filter bottle cap 21 and the filter bottle 22 relative to each other, thereby installing the filter bottle cap 21 onto the filter bottle 22 or removing the filter bottle cap 21 from the filter bottle 22.

[0102] With this configuration, namely by setting a first disassembly structure on the filter bottle cap 21 and a second disassembly structure on the filter bottle 22, the user can rotate the filter bottle cap 21 relative to the filter bottle 22 using either the first or second disassembly structure. This allows the user to install or remove the filter bottle cap 21 from the filter bottle 22 without the need for special disassembly tools, thus reducing costs and improving the user experience.

[0103] It should be noted that, in practical applications, this utility model does not limit the specific type of the first disassembly structure. For example, the first disassembly structure may be configured to include only the protrusion structure 211 formed on the filter bottle cap 21, or it may be configured to include only the disassembly hole formed on the filter bottle cap 21, or it may be configured to include both the protrusion structure 211 and the disassembly hole formed on the filter bottle cap 21, etc. Such adjustments and changes to the specific structural type of the first disassembly structure do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0104] Preferably, such as Figure 9 and Figure 11 As shown, the first disassembly structure is configured to include a protrusion 211 formed on the filter bottle cap 21 and a first disassembly hole 213.

[0105] With this configuration, namely by setting the first disassembly structure to include a protrusion structure 211 and a first disassembly hole 213, the user can remove the filter bottle cap 21 from the filter bottle 22 by clamping the protrusion structure 211, or remove the filter bottle cap 21 from the filter bottle 22 by inserting a rod-shaped tool into the first disassembly hole 213. This allows the user to choose a suitable tool to disassemble the filter bottle cap 21 from the filter bottle 22.

[0106] It should be noted that, in practical applications, this utility model does not limit the specific type of the second disassembly structure. For example, the second disassembly structure may be configured to include only the gripping part 221 formed at the bottom of the filter bottle 22, or it may be configured to include only the disassembly hole formed at the bottom of the filter bottle 22, or it may be configured to include both the gripping part 221 formed at the bottom of the filter bottle 22 and the disassembly hole, etc. Such adjustments and changes to the specific structural type of the second disassembly structure do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0107] Preferably, such as Figure 13 As shown, the second disassembly structure is configured to include a gripping portion 221 formed at the bottom of the filter bottle 22 and a second disassembly hole 222.

[0108] With this configuration, namely by setting the second disassembly structure to include a gripping part 221 formed at the bottom of the filter bottle 22 and a second disassembly hole 222, the user can hold the gripping part 221 to rotate the filter bottle 22 relative to the filter bottle cover 21 and remove the filter bottle 22 from the filter bottle cover 21, or by inserting a rod-shaped tool into the first disassembly hole 213 to rotate the filter bottle 22 relative to the filter bottle cover 21 and remove the filter bottle 22 from the filter bottle cover 21, thereby allowing the user to select a suitable tool to disassemble the filter bottle cover 21 and the filter bottle 22.

[0109] Preferably, the filter element assembly 2 of this utility model further includes an anti-loosening component, which is configured to prevent the filter bottle cap 21 from rotating relative to the filter bottle 22 when it is installed.

[0110] By incorporating anti-loosening components, the filter bottle cap 21 can be prevented from rotating relative to the filter bottle 22, thereby preventing water leakage due to the filter bottle cap 21 becoming loose and further enhancing the user experience.

[0111] Preferably, such as Figure 2 and Figure 4 As shown, the anti-loosening component includes an anti-loosening pin 25. The filter bottle cap 21 is provided with a first insertion hole 214 that is adapted to the anti-loosening pin 25, and the filter bottle 22 is provided with a second insertion hole 223 that is adapted to the anti-loosening pin 25. When installed, the anti-loosening pin 25 is inserted into the first insertion hole 214 and the second insertion hole 223 in sequence.

[0112] It should be noted that this utility model does not limit the specific type of the anti-loosening pin 25. For example, the anti-loosening pin 25 can be set as a U-shaped pin 251, or it can be set as a straight pin 252, etc. Such adjustments and changes to the specific type of the anti-loosening pin do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0113] Preferably, the anti-loosening pin 25 includes a U-shaped pin 251 and a straight pin 252.

[0114] When the U-shaped pin 251 is inserted into the first socket 214 and the second socket 223 respectively, since part of the structure of the U-shaped pin 251 is exposed, the U-shaped pin 251 can be removed from the first socket 214 and the second socket 223, thereby making the filter bottle 22 and the filter bottle cap 21 detachable; when the straight pin 252 is inserted into the first socket 214 and the second socket 223 respectively, since the straight pin 252 is completely located in the first socket 214 and the second socket 223, the straight pin 252 cannot be removed from the first socket 214 and the second socket 223, thereby making the filter bottle 22 and the filter bottle cap 21 non-detachable.

[0115] It should be noted that the anti-loosening component is not limited to the anti-loosening pin 25. For example, it can also be set in the form of a buckle and a slot, or any other possible form, as long as it can prevent the filter bottle cap 21 from rotating relative to the filter bottle 22. Such adjustments and changes to the specific type of anti-loosening component do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model. Of course, it is preferable to set the anti-loosening component as the anti-loosening pin 25.

[0116] Preferably, such as Figure 1 , Figure 2 , Figure 3 , Figure 10 and Figure 13 As shown, the bottom of the filter bottle 22 is also provided with a rinsing channel 224, and the filter element assembly also includes a rinsing connector 24, one end of which is located inside the rinsing channel 224 and is sealed to the rinsing channel 224.

[0117] By setting the flushing connector 24, on the one hand, it can serve as a flushing interface for the filter element assembly, making it convenient to flush the filter element and extend its service life; on the other hand, when a reverse osmosis membrane filter element is installed in the filter bottle 22 assembly, the flushing connector 24 can also serve as a wastewater outlet for the filter element assembly, thereby enabling the filter element assembly to be used with different types of filter elements and expanding the application range of the filter element assembly.

[0118] It should be noted that this utility model does not limit the specific connection method between the flushing connector 24 and the flushing channel 224. For example, the flushing connector 24 and the flushing channel 224 can be set to a threaded connection, or the flushing connector 24 and the flushing channel 224 can be set to a sealed connection through the clamping member 16, etc. Such adjustments and changes to the specific connection method between the flushing connector 24 and the flushing channel 224 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0119] Preferably, such as Figure 3 , Figure 6 , Figure 8 and Figure 10 As shown, the filter element assembly 2 of this utility model also includes a locking member 26. The flushing connector 24 is provided with a locking groove 241 that is adapted to the locking member 26. The bottom of the filter bottle 22 is provided with a through hole that is adapted to the locking member 26. When sealed, the locking member 26 passes through the through hole and is engaged in the locking groove 241.

[0120] With this configuration, compared to a threaded connection between the flushing connector 24 and the flushing channel, a sealed connection via a locking groove 241 is made between the flushing connector 24 and the flushing channel. This allows the flushing connector 24 to be installed into the flushing channel without needing to rotate it, as it can be directly engaged into the locking groove 241 by the locking member 26, thereby improving the installation efficiency of the flushing connector 24.

[0121] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A water circuit connection structure for a filtration device, characterized in that, The waterway connection structure includes: A filter element mounting component (1) includes a valve head (11) and a pipe assembly (12) disposed on the valve head (11). The valve head (11) is adapted to the filter element assembly (2) and can be sealed to the filter element assembly (2). The pipe assembly (12) has a first channel (1211) and a second channel (1221). The first channel (1211) is connected to the raw water channel of the filter element assembly (2) so that water in the first channel (1211) flows into the raw water channel. The second channel (1221) is connected to the purified water channel of the filter element assembly (2) so that purified water filtered by the filter element assembly (2) flows out from the second channel (1221). A connecting member (13) for connecting the first channel (1211) or the second channel (1221) of one of two adjacent filter element mounting members (1) with the first channel (1211) or the second channel (1221) of the other filter element mounting member (1); and A blocking element (14) is used to block at least one end of the first channel (1211) and / or the second channel (1221); The pipe assembly (12) is integrally formed with the valve head (11), and there are no holes on the side wall of the valve head (11).

2. The water circuit connection structure for a filtration device according to claim 1, characterized in that, The valve head (11) is provided with a first engaging structure on the side away from the pipe assembly (12), and the filter element assembly (2) is provided with a second engaging structure that is adapted to the first engaging structure. The first engaging structure and the second engaging structure cooperate to enable the filter element assembly (2) to be sealed and installed on the valve head (11).

3. The water circuit connection structure for a filtration device according to claim 2, characterized in that, The first engaging structure has at least two first engaging portions (111), and the at least two first engaging portions (111) are centrally symmetrical about the center of the valve head (11). The second engaging structure has at least two second engaging portions (212), and the second engaging portions (212) are arranged in a one-to-one correspondence with the first engaging portions (111).

4. The water circuit connection structure for a filtration device according to claim 1, characterized in that, The tube assembly (12) includes a first tube body (121) and a second tube body (122), wherein a first channel (1211) is formed in the first tube body (121) and a second channel (1221) is formed in the second tube body (122), and the ends of the first tube body (121) and the second tube body (122) are separated from each other; And / or, the water connection structure further includes a support member (18), the valve head (11) can be fixed on the support member (18), the support member (18) is also provided with a mounting hole (181) adapted to the valve head (11), and when installed, the filter element assembly (2) can pass through the mounting hole (181) and be sealed to the valve head (11).

5. The water circuit connection structure for a filtration device according to claim 4, characterized in that, The waterway connection structure also includes a clamping component (16), wherein: The connecting member (13) and / or the sealing member (14) are provided with a locking groove (15) adapted to the locking member (16), and the first tube body (121) and / or the second tube body (122) are provided with a clearance hole (123) adapted to the locking member (16). When installed, the locking member (16) passes through the clearance hole (123) and is inserted into the locking groove (15) so that the connecting member (13) and / or the sealing member (14) connect or block the first tube body (121) and / or the second tube body (122). Alternatively, the first tube (121) and / or the second tube (122) are provided with a locking groove (15) adapted to the locking member (16), and the connecting member (13) and / or the sealing member (14) are provided with a clearance hole (123) adapted to the locking member (16). When installed, the locking member (16) passes through the clearance hole (123) and is inserted into the locking groove (15) so that the connecting member (13) and / or the sealing member (14) connect or block the first tube (121) and / or the second tube (122).

6. The water circuit connection structure for a filtration device according to claim 4, characterized in that, The first pipe body (121) and / or the second pipe body (122) are provided with a detection interface (124), the detection interface (124) is used to install a detection component, and the detection component is used to detect the water quality or water pressure in the first pipe body (121) and / or the second pipe body (122).

7. The water circuit connection structure for a filtration device according to claim 6, characterized in that, The waterway connection structure also includes a pipe plug (125), which is compatible with the detection interface (124) and can block the detection interface (124).

8. The water circuit connection structure for a filtration device according to claim 4, characterized in that, The support structure (18) is also provided with a fixing structure (182), which is used to fix the support structure (18) on the filter device; And / or, the number of the mounting holes (181) is multiple and the multiple mounting holes (181) are provided one-to-one with the filter element mounting component (1). When installed, the multiple filter element components (2) can pass through the mounting holes (181) and be sealed to the valve head (11).

9. A filtration device, characterized in that, The filtration device includes a filter element assembly (2) and a water circuit connection structure for the filtration device according to any one of claims 1 to 8, wherein the filter element assembly (2) includes a filter bottle (22), a filter bottle cover (21) and a filter element (23) disposed in the filter bottle (22), and the valve head (11) is adapted to the filter bottle cover (21) and can be sealed to the filter bottle cover (21).

10. The filtration device according to claim 9, characterized in that, The filter bottle (22) is screwed to the filter bottle cap (21), wherein the filter bottle (22) and / or the filter bottle cap (21) are provided with a disassembly and assembly structure, so that the user can use the disassembly and assembly structure to rotate the filter bottle cap (21) relative to the filter bottle (22), thereby installing the filter bottle cap (21) onto the filter bottle (22) or removing the filter bottle cap (21) from the filter bottle (22); And / or, the filter bottle (22) is screwed to the filter bottle cap (21), wherein the filter element assembly (2) further includes an anti-loosening member, which, when installed, is configured to prevent the filter bottle cap (21) from rotating relative to the filter bottle (22); And / or, the bottom of the filter bottle (22) is also provided with a rinsing channel (224), and the filter element assembly (2) also includes a rinsing connector (24), one end of which is located in the rinsing channel (224) and is sealed to the rinsing channel (224).

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