Device for conveniently replacing RO membrane for producing drinking water

Abstract

The application relates to the technical field of water purification equipment and discloses a device facilitating replacement of a RO membrane for producing drinking water, which comprises a bottom plate, a supporting frame is arranged on the bottom plate, a plurality of mounting heads are arranged on the supporting frame, the mounting heads are provided with internal threads, a plurality of guide rods are arranged on the bottom plate, a plurality of buffer seats are movably connected to the guide rods, first springs are connected between the buffer seats and the bottom plate, a plurality of placing grooves are arranged on the buffer seats, one filter core cylinder is correspondingly arranged in each placing groove, external threads are arranged on one end of the filter core cylinder close to the mounting head, and the external threads are connected with the internal threads; clamping assemblies are arranged on the two sides of the buffer seat on the bottom plate, and the clamping assemblies are used for limiting the buffer seat; through the above arrangement, an operator can free both hands, calmly rotate the shell to accurately find a thread cutting point, and the problems of low efficiency and operation errors caused by arm fatigue are avoided.

Description

Technical Field

[0001] This application relates to the technical field of water purification equipment, and more particularly to a device for easy replacement of RO membranes in drinking water production. Background Technology

[0002] In existing RO membrane water purification equipment, since the RO membrane needs to be replaced regularly to maintain water purification efficiency, its core component, the filter cartridge, is usually connected to the mounting head fixed on the bracket through an upper threaded structure.

[0003] In actual disassembly and installation operations, operators need to hold the filter cartridge with a certain weight, rotate the housing to find the entry point for the threaded connection, and release their hands only after ensuring a tight fit at a certain angle.

[0004] However, this operation has obvious drawbacks: on the one hand, when the thread cutting point is not aligned, it is necessary to continuously support and adjust the position of the housing, which can easily lead to arm fatigue or even muscle soreness for the operator, affecting operating efficiency and ergonomics; on the other hand, especially during the replacement process, due to the smooth surface of the housing or unstable operating posture, it is easy to slip and cause the filter cartridge to fall instantly, which may cause the housing to break, deform or damage the internal RO membrane element, which not only increases maintenance costs but also poses safety hazards.

[0005] Therefore, there is an urgent need for a drinking water production RO membrane that is easy to replace to solve the above problems.

[0006] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Utility Model Content

[0007] The main purpose of this application is to provide a device for easy replacement of RO membranes in drinking water production, thereby solving the problem of inconvenience in the existing RO membrane disassembly and assembly.

[0008] To achieve the above objectives, this application provides a device for easy replacement of RO membrane in drinking water production, including a base plate, a support frame on the base plate, a plurality of mounting heads on the support frame, and the plurality of mounting heads having internal threads; The base plate is provided with multiple guide rods, and buffer seats are movably connected to the multiple guide rods. A first spring is connected between the buffer seats and the base plate. The buffer seats are provided with multiple placement slots, and a filter cartridge is correspondingly placed in each placement slot. The end of the filter cartridge near the mounting head is provided with an external thread, and the external thread is connected to the internal thread. The base plate is provided with clamping components on both sides of the buffer seat, and the clamping components are used to limit the position of the buffer seat.

[0009] As a preferred embodiment of this application, it also includes a limiting component, which includes an elastic band, a retaining ring, and a retaining hook. The elastic band is disposed in the placement groove located on one side of the buffer seat, and the other end of the elastic band passes through multiple placement grooves in sequence and is connected to the retaining ring. The retaining ring is connected to the retaining hook disposed on the support frame.

[0010] As a preferred embodiment of this application, the placement groove is provided with an installation groove, and a rubber pad is provided in the installation groove, with the upper surface of the rubber pad being flush with the surface of the placement groove.

[0011] As a preferred embodiment of this application, a hexagonal ring is provided on the side of the filter cartridge near the mounting head, and the hexagonal ring is used to connect with a wrench.

[0012] As a preferred embodiment of this application, the buffer seat is provided with locking rods on both sides, the locking rods are provided with rounded corner structures at both ends, and the locking rods are connected to the clamping assembly.

[0013] As a preferred embodiment of this application, it also includes a pressure bar, with the pressure bar connected to the middle of the locking rod.

[0014] As a preferred embodiment of this application, the clamping assembly includes a support rod, a wedge block, and a second spring. The support rod is provided on the base plate, and a fixing ring is fixedly connected to the support rod. The wedge block is slidably connected to the support rod, and the second spring is connected between the wedge block and the fixing ring.

[0015] As a preferred embodiment of this application, it further includes a pull rod, wherein the pull rod is disposed at the middle of the wedge block.

[0016] As a preferred embodiment of this application, the support frame includes a support plate and a mounting plate. The support plate is provided on the base plate, and the mounting plate is provided on the support plate. The mounting plate has a plurality of guide grooves for placing the mounting head.

[0017] As a preferred embodiment of this application, multiple mounting heads are connected by connecting pipes, and water pipe joints are provided on the two mounting heads located at both ends.

[0018] This application provides an easy-to-replace RO membrane device for drinking water production, which effectively solves the problem of requiring long-term manual support and thread alignment of the filter cartridge during installation. By setting a guide rod structure with a buffer seat and a first spring, the device can stably support the entire weight of the filter cartridge before installation, allowing the operator to completely free their hands and easily rotate the housing to accurately find the thread entry point. This completely avoids the problems of low efficiency and operational errors caused by arm fatigue, significantly improving the ergonomics and safety of the replacement operation. At the same time, the buffer seat and the guide rod structure with the first spring can provide a certain cushioning effect when the filter cartridge falls, preventing the bottom of the filter cartridge from rigidly contacting the base plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a device for easy replacement of an RO membrane in drinking water production according to an embodiment of this application; Figure 2 This is a first exploded view of a device for easy replacement of an RO membrane in drinking water production according to an embodiment of this application; Figure 3 This is a second exploded view of a device for easy replacement of an RO membrane in drinking water production according to an embodiment of this application; Figure 4 This is a schematic diagram of the clamping component in a device for easy replacement of an RO membrane in drinking water production, according to one embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: 1. Base plate; 2. Support plate; 3. Mounting plate; 4. Mounting head; 5. Guide rod; 6. Buffer seat; 7. First spring; 8. Placement slot; 9. Filter cartridge; 10. Limiting assembly; 11. Rubber pad; 12. Hexagonal ring; 13. Clamping rod; 14. Pressure rod; 15. Pull rod; 16. Clamping assembly; 1001, Elastic band; 1002, Snap ring; 1003, Hook; 1601, Support rod; 1602, Wedge block; 1603, Second spring. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] Furthermore, descriptions using terms such as "first" and "second" in this application are for descriptive purposes only (e.g., to distinguish identical or similar elements) and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, technical solutions from different embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed in this application.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 In one embodiment, a device for easy replacement of RO membrane in drinking water production includes a base plate 1, a support frame on the base plate 1, and a plurality of mounting heads 4 on the support frame, the plurality of mounting heads 4 being provided with internal threads; Multiple guide rods 5 are provided on the base plate 1. A buffer seat 6 is movably connected to the multiple guide rods 5. A first spring 7 is connected between the buffer seat 6 and the base plate 1. Multiple placement slots 8 are provided on the buffer seat 6. A filter element 9 is provided in each placement slot 8. The end of the filter element 9 near the mounting head 4 is provided with an external thread, which is connected to the internal thread. Clamping components 16 are provided on both sides of the buffer seat 6 on the base plate 1. The clamping components 16 are used to limit the buffer seat 6.

[0024] Specifically, the multiple mounting heads 4 are connected by connecting pipes, and water pipe connectors are provided on the two mounting heads 4 located at both ends. Furthermore, a damper is installed between the buffer seat and the guide rod. The damper provides constant resistance, allowing the buffer seat to move smoothly, slowly, and at a uniform speed.

[0025] To further illustrate the installation process, this embodiment takes the installation of an RO membrane filter cartridge as an example for specific explanation. It should be understood that in actual application scenarios, the filter cartridge 9 can accommodate different filter elements, such as PP cotton filter cartridges, RO membrane filter cartridges, or activated carbon filter cartridges, according to actual water purification needs. Alternatively, multiple filter cartridges can be filled with different filter elements according to actual needs, and their installation and fixing methods are similar to those in this embodiment. This embodiment takes an RO membrane filter cartridge as an example, adopting the RO membrane structure of the Xiaomi brand in the existing technology. Its working principle is as follows: a water pipe is set to connect to the raw water end through a water pipe connector. The raw water enters the filter cartridge 9 through the channel inside the mounting head 4, and flows through the outside of the RO membrane under pressure. The pure water penetrates the RO membrane under pressure and collects in its central tube. Then it is discharged from the outlet at the top of the RO membrane filter cartridge and flows into the water outlet in the middle of the mounting head 4. Thus, one purification process is completed. Then it enters another filter cartridge 9 through a connecting pipe. The water outlet of the mounting head 4 is equipped with a waterproof sealing component, such as an O-ring (not shown in the figure), to form a tight axial end face seal with the water outlet at the top of the RO membrane filter cartridge, ensuring no leakage at the connection.

[0026] It should be noted that, in order to fully utilize its functions, this device is also equipped with electronic components necessary for water purification equipment, such as controllers and water pumps, as well as other installation structures, in actual use. Since this application only improves the filter cartridge 9, the installation position and working principle of other electronic components will not be described in detail in this application.

[0027] This application effectively solves the problem of requiring long-term manual support and thread alignment during the installation of the filter cartridge 9 through the above-mentioned settings. By setting the guide rod 5 structure with buffer seat 6 and first spring 7, the entire weight of the filter cartridge 9 can be stably supported before installation, allowing the operator to completely free their hands and easily rotate the shell to accurately find the thread entry point. This completely avoids the problems of low efficiency and operation errors caused by arm fatigue, significantly improving the ergonomics and safety of replacement operations. At the same time, the buffer seat 6 and the guide rod 5 structure with first spring 7 can provide a certain cushioning effect when the filter cartridge 9 falls, preventing the bottom of the filter cartridge 9 from rigidly contacting the base plate 1.

[0028] Specifically, please refer to Figure 1 , Figure 3 , Figure 4 Based on the above embodiments, a limiting component 10 is also included. The limiting component 10 includes an elastic band 1001, a retaining ring 1002, and a hook 1003. An elastic band 1001 is provided in a placement groove 8 located on one side of the buffer seat 6. The other end of the elastic band 1001 passes through multiple placement grooves 8 in sequence and is connected to a retaining ring 1002. The retaining ring 1002 is connected to a hook 1003 provided on the support frame.

[0029] It is understandable that by setting the limiting component 10, the filter cartridge 9 placed in the placement slot 8 can be effectively limited, so as to prevent the filter cartridge 9 from shifting position during the movement of the buffer seat 6. The overall structure is simple and easy to install and disassemble.

[0030] Specifically, please refer to Figure 4Based on the above embodiment, the placement groove 8 is provided with an installation groove, and a rubber pad 11 is provided in the installation groove, with the upper surface of the rubber pad 11 flush with the surface of the placement groove 8.

[0031] It is understandable that by setting the rubber pad 11, beneficial friction can be increased, further ensuring that the filter cartridge 9 will not slip. At the same time, setting the rubber pad 11 can provide flexible contact and a certain buffering effect, which is beneficial to protect the bottom of the filter cartridge 9.

[0032] Specifically, please refer to Figure 1 , Figure 2 Based on the above embodiments, a hexagonal ring 12 is provided on the side of the filter cartridge 9 near the mounting head 4. The hexagonal ring 12 is used to connect with a wrench.

[0033] It is understandable that by setting the hexagonal ring 12 and the wrench configured with it, the wrench structure is open and can be directly inserted into the hexagonal ring to contact or connect with the two parallel sides of the hexagonal ring, which can further tighten the filter cartridge 9 and the mounting head 4, and also facilitate subsequent disassembly.

[0034] Specifically, please refer to Figure 1 Based on the above embodiment, the buffer seat 6 is provided with locking rods 13 on both sides, and the two ends of the locking rods 13 are provided with rounded corner structures. The locking rods 13 are connected to the clamping assembly 16.

[0035] Furthermore, it also includes a pressure rod 14, which is connected to the middle of the locking rod 13.

[0036] Specifically, please refer to Figure 1 , Figure 4 Based on the above embodiments, the clamping assembly 16 includes a support rod 1601, a wedge block 1602, and a second spring 1603. The support rod 1601 is provided on the base plate 1, and a fixing ring is fixedly connected to the support rod 1601. The wedge block 1602 is slidably connected to the support rod 1601, and the second spring 1603 is connected between the wedge block 1602 and the fixing ring. Furthermore, it also includes a pull rod 15, which is provided in the middle of the wedge block 1602.

[0037] It is understandable that by setting the locking lever 13 and the clamping assembly 16, the buffer seat 6 can be quickly limited and quickly unlocked. In actual use, applying a certain pressure to the pressing lever 14 causes the buffer seat 6 to move towards the base plate 1. The first spring 7 is compressed. During the movement of the buffer seat 6, the locking lever 13 contacts and presses against the inclined surface of the wedge block 1602. The second spring 1603 is compressed until the locking lever 13 is at the bottom of the wedge block 1602. At this time, the second spring 1603 returns to its original position. The wedge block 1602 and the locking rod 13 limit the buffer seat 6. When unlocking, the pull rod 15 is manually moved to move the wedge block 1602. The second spring 1603 is compressed, and the buffer seat 6 is reset under the action of the first spring 7. Since there is damping between the buffer seat 6 and the guide rod 5, the damping allows the buffer seat 6 to move relatively slowly away from the base plate 1, so that the first spring 7 will not reset instantly. Therefore, there will be no problem of collision between the external thread of the filter cartridge 9 and the mounting head 4.

[0038] Specifically, please refer to Figure 1 , Figure 2 Based on the above embodiments, the support frame includes a support plate 2 and a mounting plate 3. The support plate 2 is provided on the base plate 1, and the mounting plate 3 is provided on the support plate 2. The mounting plate 3 has a plurality of guide grooves for placing the mounting head 4. By providing guide grooves, a guiding effect can be provided when installing the mounting head 4, so as to achieve rapid installation.

[0039] In summary, a device for easy replacement of RO membrane in drinking water production involves the following steps during filter cartridge 9 installation: First, apply a certain pressure to the pressing rod 14 to move the buffer seat 6 closer to the base plate 1. The first spring 7 is compressed, and during the movement of the buffer seat 6, the locking rod 13 contacts and presses the inclined surface of the wedge block 1602. The second spring 1603 is compressed until the locking rod 13 is located at the bottom of the wedge block 1602. Then, the filter cartridge 9 containing the filter element is placed in the placement groove 8. At this time, the elastic band 1001 is manually pulled to connect the retaining ring 1002 with the retaining hook 1003. Subsequently, the pull rod 15 is pulled to both ends to unlock. Due to the damping between the guide rod 5 and the buffer seat 6, the buffer seat 6 moves slowly away from the base plate 1 under the action of the first spring 7. Through the limiting action of the elastic band 1001, the filter cartridge 9 can be limited during the movement, which can ensure that the top of the RO membrane is connected to the water outlet inside the mounting head 4 and reduce installation errors. When the external thread of the filter cartridge 9 contacts the mounting head 4, the user can loosen the limiting component 10 and then manually rotate the filter cartridge 9 to achieve the initial fastening connection between the filter cartridge 9 and the mounting head 4. After the external thread of the filter cartridge 9 is screwed into the mounting head 4 for one or two thread segments, the spring is in the normal state. That is, when the external thread of the filter cartridge 9 is screwed into the internal thread of the mounting head 4, there is a gap between the bottom of the filter cartridge 9 and the buffer seat 6 (not shown in the figure). Therefore, the first spring 7 will not always squeeze the bottom of the filter cartridge 9, causing the problem of difficulty in screwing in. Finally, the handle is inserted into the hexagonal ring 12 for rotation to achieve a further fastening connection. During disassembly, first press down the buffer seat 6 to allow the locking rod 13 to pass through the wedge block 1602. Then, use a wrench to insert into the hexagonal ring 12 to achieve the first-level loosening action. Afterward, manually rotate the filter cartridge 9. During the loosening and rotation process, the rubber pad 11 in the groove 8 and the first spring 7 under the buffer seat 6 can play a certain buffering role, protecting the bottom of the filter cartridge 9 and preventing the bottom from breaking or deforming due to rigid contact after the filter cartridge 9 falls due to slipping. With the above settings, users can free their hands during installation, solving the problem of having to manually support and align the threads of the filter cartridge 9 for a long time during installation. It also solves the problem of deformation or breakage caused by the bottom of the filter cartridge 9 being rigidly impacted due to the filter cartridge 9 falling off during disassembly.

[0040] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0041] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A device for easy replacement of RO membrane in drinking water production, characterized in that, Includes a base plate, on which a support frame is provided, and on which a plurality of mounting heads are provided, the plurality of mounting heads being provided with internal threads; The base plate is provided with multiple guide rods, and buffer seats are movably connected to the multiple guide rods. A first spring is connected between the buffer seats and the base plate. The buffer seats are provided with multiple placement slots, and a filter cartridge is correspondingly placed in each placement slot. The end of the filter cartridge near the mounting head is provided with an external thread, and the external thread is connected to the internal thread. The base plate is provided with clamping components on both sides of the buffer seat, and the clamping components are used to limit the position of the buffer seat.

2. The device for easy replacement of RO membrane in drinking water production according to claim 1, characterized in that, It also includes a limiting component, which includes an elastic band, a retaining ring, and a retaining hook. The elastic band is provided in the placement groove on one side of the buffer seat. The other end of the elastic band passes through multiple placement grooves in sequence and is connected to the retaining ring. The retaining ring is connected to the retaining hook provided on the support frame.

3. The device for easy replacement of RO membrane in drinking water production according to claim 2, characterized in that, The placement groove has an installation groove, and a rubber pad is provided in the installation groove, with the upper surface of the rubber pad flush with the surface of the placement groove.

4. The device for easy replacement of RO membrane in drinking water production according to claim 1, characterized in that, A hexagonal ring is provided on the side of the filter cartridge near the mounting head, and the hexagonal ring is used to connect to a wrench.

5. The device for easy replacement of RO membrane in drinking water production according to claim 1, characterized in that, The buffer seat is provided with locking rods on both sides, and the two ends of the locking rods are provided with rounded corner structures. The locking rods are connected to the clamping assembly.

6. The device for easy replacement of RO membrane in drinking water production according to claim 5, characterized in that, It also includes a pressure bar, with the pressure bar connected to the middle of the clamp.

7. The device for easy replacement of RO membrane in drinking water production according to claim 1, characterized in that, The clamping assembly includes a support rod, a wedge block, and a second spring. The support rod is provided on the base plate, and a fixing ring is fixedly connected to the support rod. The wedge block is slidably connected to the support rod, and the second spring is connected between the wedge block and the fixing ring.

8. The device for easy replacement of RO membrane in drinking water production according to claim 7, characterized in that, It also includes a pull rod, which is provided in the middle of the wedge block.

9. The device for easy replacement of RO membrane in drinking water production according to claim 1, characterized in that, The support frame includes a support plate and a mounting plate. The support plate is provided on the base plate, and the mounting plate is provided on the support plate. The mounting plate has a plurality of guide grooves for placing the mounting head.

10. A device for easy replacement of RO membrane in drinking water production according to claim 2, characterized in that, Multiple mounting heads are connected by connecting pipes, and water pipe connectors are provided on the two mounting heads located at both ends.

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