Low-cost filter
By setting up isolation bags made of PE material in the filter, the complex and high cost of electroplating coating process in the aluminum shell is solved, and a low-cost filter design is realized, which avoids the increase in the heavy metal content in the water and ensures the filtration effect.
Patent Information
- Application Number
- CN202421011400.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing aluminum shell electroplating PE coating for disposable filters such as coffee and cola is complex and costly.
A PE-material isolation bag is provided between the shell and the filter element assembly to avoid contact between water and the aluminum shell, and eliminate the process of electroplating PE coating in the shell, reducing production costs.
A low-cost filter design is realized, which avoids the increase in the heavy metal content in water and ensures the optimization of filtration effect.
Smart Images
Figure CN222239055U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of water treatment technology, and specifically relates to a low-cost filter. Background Art
[0002] Existing disposable filters used for coffee and cola production are usually made of aluminum shells. After the shells are stretched, PE coating is electroplated on the inner surface of the shells. Then the filter element is placed in the shells, and the water flows into the gap between the filter element and the shells through the inlet pipe. After being filtered by the filter element, it flows out through the outlet pipe.
[0003] For example, the patent publication number CN209679578U is a water purifier aluminum shell filter body, including an activated carbon filter body tube body and a shell body. The shell body includes an upper water inlet pipe, an outlet pipe and a lower cylinder. The water inlet pipe and the outlet pipe are processed on a circular seat body. The lower part of the circular seat body is installed at the upper end of the cylinder body. The cylinder body is stamped and formed in one piece by aluminum material. The inner surface of the cylinder body is electroplated with PE coating. An annular diversion waterway is processed at the lower part of the circular seat body. The upper part of the annular diversion waterway is connected with the lower part of the water inlet pipe. The lower part of the annular diversion waterway is located around the upper part of the cylinder body. There is a circular upper fixing ring in the lower middle part of the water outlet pipe, and a circular lower fixing ring in the lower middle part of the cylinder body. The upper and lower parts of the activated carbon filter body tube body are respectively located in the upper fixing ring and the lower fixing ring, which reduces the probability of breeding bacteria and adsorbing impurities in the cylinder body, reduces the water pressure drop, and the filter body can achieve a better filtering effect.
[0004] However, the existing processing technology for electroplating PE coating inside the stretched aluminum shell is complicated and the processing cost is high. Utility Model Content
[0005] The purpose of this application is to provide a low-cost filter, which avoids contact between water and the aluminum shell by setting an isolation bag made of PE material between the shell and the filter element assembly, thereby avoiding the increase of heavy metal content in the water, and at the same time eliminating the process of electroplating PE coating in the shell, thereby reducing production costs and facilitating use.
[0006] The technical solution adopted by the present application to solve the above technical problems is: a low-cost filter is proposed, comprising: a shell, which is hollow inside and has an opening at one end, an isolation bag is sleeved inside the shell, and a fixing sleeve is sleeved outside the isolation bag, and the fixing sleeve is used to seal and press the opening of the isolation bag against the opening of the shell, and the isolation bag is made of PE material;
[0007] The upper cover is detachably connected to one end of the shell opening, the upper cover is provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively sealed with a water inlet pipe and a water outlet pipe, the upper cover is sealedly connected to the shell, and an installation space is formed between the upper cover and the isolation bag.
[0008] A filter element assembly is arranged in the installation space. The interior of the filter element assembly is hollow. The two ends of the filter element assembly are respectively connected to the shell and the upper cover. A water inlet cavity is formed between the outer side of the filter element assembly and the isolation bag and the upper cover. A water outlet cavity is formed on the inner side of the filter element assembly. The water inlet is connected to the water inlet cavity, and the water outlet is connected to the water outlet cavity.
[0009] Through the above technical features, when water flows into the shell through the water inlet, the water enters the water inlet cavity formed by the isolation bag, the upper cover and the filter element assembly, and then enters the water outlet cavity after being filtered by the filter element assembly, and then flows out from the water outlet pipe to complete the water purification process. In this application, a PE isolation bag is set between the shell and the filter element assembly to avoid contact between water and the aluminum shell, avoid the increase of heavy metal content in the water, and at the same time save the process of electroplating PE coating in the shell, reduce production costs, and facilitate use.
[0010] Preferably, the fixing sleeve is a cylindrical structure with openings at both ends, and the fixing sleeve abuts against the inner circumferential wall of the shell, thereby expanding and pressing the isolation bag against the inner circumferential wall of the shell, and one end of the fixing sleeve is provided with a sealing edge extending away from the center of a circle, and a first sealing groove is provided circumferentially on a side of the sealing edge close to the shell, and a first sealing ring is connected in the first sealing groove, and the first sealing ring is used to seal and press the opening of the isolation bag against the outer circumferential wall of the opening of the shell.
[0011] Through the above-mentioned technical features, after the isolation bag is placed in the shell, the fixing sleeve is placed on the isolation bag, and the isolation bag is abutted against the inner wall of the shell by the fixing sleeve. The sealing edge of the fixing sleeve is used to seal and press the opening of the isolation bag and the opening of the shell to prevent water from seeping into the gap between the isolation bag and the shell, thereby achieving fixation between the opening of the isolation bag and the inner wall.
[0012] Preferably, the upper cover is provided with a pressing block extending inwardly along the circumferential direction near the sealing edge in the axial direction, and when the upper cover is connected to the shell, the pressing block presses against an end of the sealing edge away from the shell.
[0013] Through the above-mentioned technical features, when the upper cover is connected to the shell, the clamping block of the upper cover is pressed against the end of the sealing edge away from the shell, so that the sealing edge is pressed against the opening of the isolation bag, ensuring that the isolation bag will not slip from the opening of the shell during use and ensuring the sealing effect at the sealing edge.
[0014] Preferably, the filter element assembly comprises: a support sleeve, comprising a first sealing block and a second sealing block at two ends, and a water-permeable grid connected axially between the first sealing block and the second sealing block, and the outer peripheries of the two ends of the support sleeve are respectively connected to the housing and the upper cover;
[0015] The filter element body is a columnar structure with a hollow interior and openings at both ends. The two ends of the filter element body are sealed and connected to the first sealing block and the second sealing block respectively along the circumferential direction. The water inlet cavity is formed between the outer periphery of the filter element body and the isolation bag and the upper cover. The water outlet cavity is formed on the inner side of the filter element body. A through hole is provided on the first sealing block or the second sealing block, and the through hole is connected to the water outlet.
[0016] Through the above technical features, the two ends of the filter element body are sealed and connected with the two ends of the support sleeve to form a closed water outlet cavity. The water entering the water inlet cavity through the water inlet passes through the permeable grid on the support sleeve and enters the water outlet cavity after being filtered by the filter element body, and flows out through the through hole and the water outlet. The support sleeve plays a supporting and fixing role on the filter element body to ensure the stability of the placement of the filter element body.
[0017] Preferably, one end of the water outlet pipe extends into the water outlet cavity through the through hole, and a sealing member is provided between the water outlet pipe and the through hole.
[0018] Through the above technical features, the sealing member can prevent the water in the water outlet cavity from leaking through the through hole.
[0019] Preferably, an abutment block extending toward one side of the opening is provided along the circumferential direction on the inner bottom of the shell, and an abutment platform extending inward is provided along the circumferential direction on the inner side of the abutment block, one end of the support sleeve is placed on the abutment platform, the outer periphery of the support sleeve abuts against the inner periphery of the abutment block, and an accommodation gap is formed between one end of the support sleeve and the bottom of the shell, and the bottom of the isolation bag is located in the accommodation gap.
[0020] Through the above-mentioned technical features, one end of the support sleeve is placed on the abutment table, and the outer periphery of the support sleeve abuts against the inner periphery of the abutment block, so that the support sleeve is stably placed on the bottom of the shell, and when the support sleeve is placed on the abutment table, the bottom of the isolation bag sleeved in the shell is limited within the accommodating gap, thereby fixing the bottom of the isolation bag.
[0021] Preferably, a fixing block is provided between the upper cover and the supporting sleeve; a first clamping block extending inward is provided on the inner side of the fixing block along the circumferential direction, and a first clamping groove extending inward is provided on the supporting sleeve along the circumferential direction, and the first clamping block is clamped at the first clamping groove; a second clamping block extending outward is provided on the outer side of the fixing block along the circumferential direction, and a second clamping groove extending outward is provided on the inner circumference of the upper cover, and the second clamping block is clamped at the second clamping groove.
[0022] Through the above technical features, when the upper cover is connected to the shell, the second clamping block on the outside of the fixing block is clamped in the second clamping groove of the upper cover, and the first clamping block on the inside of the fixing block is clamped in the first clamping groove of the supporting sleeve, so that the relative position between the fixing sleeve and the upper cover is fixed by the fixing block.
[0023] Preferably, the first sealing block and the second sealing block are both provided with a second sealing groove along the circumferential direction, a second sealing ring is connected in the second sealing groove, and the outer periphery of the second sealing ring abuts against the end surface of the filter element body.
[0024] Through the above-mentioned technical features, the two ends of the valve core body are sealed and connected through the second sealing ring on the first sealing block and the second sealing block, so that the water in the water inlet chamber will only flow into the water outlet chamber on the inner side of the filter element after filtering the outer side of the filter element body, and will not enter the water outlet chamber from the upper side or the lower side of the filter element body, thereby ensuring water filtration.
[0025] Preferably, a spirally mounted filter stack is sleeved on the outer side of the support sleeve.
[0026] Through the above technical features, the water in the water inlet cavity flows through the filter stack and then flows to the filter element body for filtration, and the large particles in the water are filtered through the filter stack shell.
[0027] Preferably, the filter element is made of activated carbon fiber.
[0028] Through the above technical features, the activated carbon fiber has small and uniform pore size and simple structure. It has a fast adsorption rate for small molecular substances and a high adsorption speed. It also has a large contact area with the adsorbate, which allows for uniform contact and adsorption, making full use of the adsorption material.
[0029] In summary, this application has the following beneficial effects:
[0030] (1) The present application sets an isolation bag made of PE material between the shell and the filter element assembly to avoid contact between water and the aluminum shell, avoid the increase of heavy metal content in the water, and at the same time eliminate the process of electroplating PE coating inside the shell, thereby reducing production costs and facilitating use.
[0031] (2) The present application seals the two ends of the valve core body through the first sealing block and the second sealing ring on the second sealing block, so that the water in the water inlet chamber will only flow into the water outlet chamber on the inner side of the filter element after filtering the outer side of the filter element body, and will not enter the water outlet chamber from the upper side or the lower side of the filter element body, thereby ensuring water filtration.
[0032] (3) The present application fixes the opening and inner wall of the isolation bag by means of a fixing sleeve, and fixes the bottom of the isolation bag by means of an accommodating gap, thereby completing the fixation of the isolation bag mounted in the shell and ensuring the stability of the isolation bag mounting. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 This is a schematic diagram of the overall structure of an implementation scheme of the present application;
[0034] Figure 2 A schematic cross-sectional structure of an embodiment of the present application Figure 1 ;
[0035] Figure 3 A schematic cross-sectional structure of an embodiment of the present application Figure 2 ;
[0036] Figure 4 A schematic cross-sectional structure of an embodiment of the present application Figure 3 ;
[0037] Figure 5 A schematic cross-sectional structure of an embodiment of the present application Figure 4 ;
[0038] Figure 6 A schematic cross-sectional structure of an embodiment of the present application Figure 5 .
[0039] In the figure, 1, shell; 11, opening; 12, isolation bag; 13, fixing sleeve; 131, sealing edge; 132, first sealing groove; 133, first sealing ring; 14, abutment block; 141, abutment platform; 142, accommodating gap; 2, upper cover; 21, water inlet; 22, water outlet; 23, pressing block; 24, fixing block; 241, first clamping block; 242, second clamping block; 25, second clamping groove; 3, filter element assembly; 31, water inlet chamber; 32, water outlet chamber; 33, supporting sleeve; 331, first sealing block; 332, second sealing block; 333, water-permeable grid; 334, through hole; 335, first clamping groove; 336, second sealing groove; 337, second sealing ring; 34, filter element body; 35, filter lamination. DETAILED DESCRIPTION
[0040] The following are specific embodiments of the present application and combined with the accompanying drawings to further describe the technical solution of the present application, but the present application is not limited to these embodiments.
[0041] like Figure 1 , Figure 2 As shown, the present application discloses a low-cost filter, comprising: an aluminum shell 1 and a plastic upper cover 2, wherein an opening 11 is provided at one end of the shell 1, the upper cover 2 is threadedly connected to the end of the shell 1 having the opening 11, and a water inlet 21 and a water outlet 22 are provided on the upper cover 2.
[0042] like Figure 2 , Figure 3As shown, an isolation bag 12 made of PE material is sleeved inside the shell 1. The isolation bag 12 is inserted from one end of the opening 11 of the shell 1, and then a fixing sleeve 13 is arranged outside the isolation bag 12. The fixing sleeve 13 is axially pressed against the inner circumferential wall of the shell 1, so that the isolation bag 12 is stretched and pressed against the inner circumferential wall of the shell 1.
[0043] In addition, a sealing edge 131 extending away from the center of the circle is provided at one end of the fixing sleeve 13, a first sealing groove 132 is circumferentially provided on the side of the sealing edge 131 close to the shell 1, a first sealing ring 133 is connected in the first sealing groove 132, and a clamping block 23 extending inwardly along the circumferential direction is provided at a position close to the sealing edge 131 in the axial direction of the upper cover 2. When the upper cover 2 is connected to the shell 1, the clamping block 23 is pressed against the end of the sealing edge 131 away from the shell 1, thereby pressing the sealing edge 131 against the opening 11 of the shell 1, and sealing and clamping the opening 11 of the isolation bag 12 here to prevent the isolation bag 12 from slipping during use.
[0044] The bottom of the housing 1 is provided with an abutment block 14 extending toward one side of the opening 11 along the circumferential direction, and the inner side of the abutment block 14 is provided with an abutment platform 141 extending inward along the circumferential direction, and the filter element assembly 3 is placed on the abutment platform 141, and the outer periphery of the filter element assembly 3 abuts against the inner periphery of the abutment block 14, and an accommodation gap 142 is formed between one end of the filter element assembly 3 and the bottom of the housing 1. When the isolation bag 12 is inserted from the opening 11 of the housing 1, the bottom of the isolation bag 12 is limited in the accommodation gap 142 at the bottom of the housing 1.
[0045] Thus, the opening 11 and the inner wall of the isolation bag 12 are fixed by the fixing sleeve 13, and the bottom of the isolation bag 12 is fixed by the accommodating gap 142, so that the isolation bag 12 mounted in the shell 1 is fixed and the stability of the isolation bag 12 is ensured.
[0046] like Figure 4 , Figure 5 As shown, the filter element assembly 3 includes a support sleeve 33 , a filter element body 34 and filter stacks 35 .
[0047] The support sleeve 33 includes a first sealing block 331 and a second sealing block 332 at two ends, and a water-permeable grid 333 axially connected between the first sealing block 331 and the second sealing block 332 .
[0048] One end of the support sleeve 33 is placed on the abutment platform 141 and the peripheral wall abuts against the inner peripheral wall of the abutment block 14; the other end of the support sleeve 33 is limitedly connected with the upper cover 2 through the fixing block 24: the inner side of the fixing block 24 is provided with a first clamping block 241 extending inwardly along the circumferential direction, and the support sleeve 33 is provided with a first clamping groove 335 extending inwardly along the circumferential direction, and the first clamping block 241 is clamped at the first clamping groove 335; the outer side of the fixing block 24 is provided with a second clamping block 242 extending outwardly along the circumferential direction, and the inner circumference of the upper cover 2 is provided with a second clamping groove 25 extending outwardly, and the second clamping block 242 is clamped at the second clamping groove 25, and the relative position between the fixing sleeve 13 and the upper cover 2 is fixed by the fixing block 24.
[0049] The filter element 34 is made of activated fiber carbon. The filter element 34 is a columnar structure with a hollow interior and openings 11 at both ends. The filter element 34 is placed in a support sleeve 33. The support sleeve 33 supports and fixes the filter element 34. The two ends of the filter element 34 are respectively in contact with the first sealing block 331 and the second sealing ring 337 at the second sealing block 332 to achieve a sealed connection.
[0050] The filter stack 35 is a spiral stack structure and is sleeved on the outside of the support sleeve 33 .
[0051] like Figure 6 As shown, a water inlet chamber 31 is formed between the filter element body 34, the isolation bag 12 and the upper cover 2, a water inlet 21 is provided on the upper cover 2, a water inlet pipe is connected to the water inlet 21 (not shown in the figure), and the water inlet pipe is sealedly connected to the water inlet 21; a water outlet chamber 32 is formed on the inner side of the filter element body 34, a through hole 334 is provided on the first sealing block 331, the through hole 334 is communicated with the water outlet 22 on the upper cover 2, the water outlet 22 is connected to a water outlet pipe (not shown in the figure), one end of the water outlet pipe passes through the through hole 334 and extends into the water outlet chamber 32, and the water outlet pipe is sealedly connected to the through hole 334 and the water outlet 22.
[0052] Working principle: When water flows into the housing 1 through the water inlet 21, the water enters the water inlet chamber 31 formed by the isolation bag 12, the upper cover 2 and the filter element assembly 3. Then, the water first passes through the filter stack 35 to filter large particles in the water, and then enters the water outlet chamber 32 after being filtered by the filter element body 34, and then flows out from the water outlet pipe, completing the water purification process.
[0053] The specific embodiments described herein are merely examples of the present application. A person skilled in the art of the present application may make various modifications or additions to the specific embodiments described or replace them in a similar manner without departing from the scope defined in the present application.
Claims
1. A low-cost filter, characterized in that: include: A shell (1) is hollow inside and provided with an opening (11) at one end; an isolation bag (12) is sleeved inside the shell (1); a fixing sleeve (13) is sleeved outside the isolation bag (12); the fixing sleeve (13) is used to seal and press the opening (11) of the isolation bag (12) against the opening (11) of the shell (1); the isolation bag (12) is made of PE material; An upper cover (2), the upper cover (2) being detachably connected to one end of the opening (11) of the shell (1), the upper cover (2) being provided with a water inlet (21) and a water outlet (22), the water inlet (21) and the water outlet (22) being respectively sealedly connected to a water inlet pipe and a water outlet pipe, the upper cover (2) being sealedly connected to the shell (1), and an installation space being formed between the upper cover (2) and the isolation bag (12), A filter element assembly (3) is arranged in the installation space, the interior of the filter element assembly (3) is hollow, the two ends of the filter element assembly (3) are respectively connected to the housing (1) and the upper cover (2), a water inlet chamber (31) is formed between the outer side of the filter element assembly (3) and the isolation bag (12) and the upper cover (2), a water outlet chamber (32) is formed on the inner side of the filter element assembly (3), the water inlet (21) is connected to the water inlet chamber (31), and the water outlet (22) is connected to the water outlet chamber (32).
2. The low-cost filter according to claim 1, characterized in that The fixing sleeve (13) is a cylindrical structure with openings (11) at both ends. The fixing sleeve (13) abuts against the inner circumferential wall of the shell (1), thereby expanding and pressing the isolation bag (12) against the inner circumferential wall of the shell (1). One end of the fixing sleeve (13) is provided with a sealing edge (131) extending away from the center of a circle. A first sealing groove (132) is provided on a side of the sealing edge (131) close to the shell (1) in a circumferential direction. A first sealing ring (133) is connected inside the first sealing groove (132). The first sealing ring (133) is used to seal and press the opening (11) of the isolation bag (12) against the outer circumferential wall of the opening (11) of the shell (1).
3. The low-cost filter according to claim 2, characterized in that The upper cover (2) is provided with a pressing block (23) extending inwardly in the circumferential direction near the sealing edge (131) in the axial direction. When the upper cover (2) is connected to the shell (1), the pressing block (23) presses against an end of the sealing edge (131) away from the shell (1).
4. The low-cost filter according to claim 1, characterized in that The filter element assembly (3) comprises: A support sleeve (33) comprising a first sealing block (331) and a second sealing block (332) at two ends, and a water-permeable grid (333) axially connected between the first sealing block (331) and the second sealing block (332), wherein the outer peripheries of both ends of the support sleeve (33) are respectively connected to the housing (1) and the upper cover (2); The filter element (34) is a columnar structure with a hollow interior and openings (11) at both ends. The two ends of the filter element (34) are sealed and connected to the first sealing block (331) and the second sealing block (332) respectively along the circumferential direction. The water inlet chamber (31) is formed between the outer periphery of the filter element (34) and the isolation bag (12) and the upper cover (2). The water outlet chamber (32) is formed on the inner side of the filter element (34). A through hole (334) is provided on the first sealing block (331) or the second sealing block (332), and the through hole (334) is connected to the water outlet (22).
5. The low-cost filter according to claim 4, characterized in that One end of the water outlet pipe extends into the water outlet cavity (32) through the through hole (334), and a sealing member is provided between the water outlet pipe and the through hole (334).
6. The low-cost filter according to claim 4, characterized in that An abutment block (14) extending toward one side of the opening (11) is provided along the circumferential direction at the inner bottom of the shell (1), and an abutment platform (141) extending inward is provided along the circumferential direction on the inner side of the abutment block (14), one end of the support sleeve (33) is placed on the abutment platform (141), the outer circumference of the support sleeve (33) abuts against the inner circumference of the abutment block (14), and an accommodation gap (142) is formed between one end of the support sleeve (33) and the bottom of the shell (1), and the bottom of the isolation bag (12) is located in the accommodation gap (142).
7. The low-cost filter according to claim 4, characterized in that A fixing block (24) is provided between the upper cover (2) and the supporting sleeve (33); a first clamping block (241) extending inwardly is provided on the inner side of the fixing block (24) along the circumferential direction; a first clamping groove (335) extending inwardly is provided on the supporting sleeve (33) along the circumferential direction; the first clamping block (241) is clamped at the first clamping groove (335); a second clamping block (242) extending outwardly is provided on the outer side of the fixing block (24) along the circumferential direction; a second clamping groove (25) extending outwardly is provided on the inner circumference of the upper cover (2); the second clamping block (242) is clamped at the second clamping groove (25).
8. The low-cost filter according to claim 4, characterized in that The first sealing block (331) and the second sealing block (332) are both provided with a second sealing groove (336) along the circumferential direction, a second sealing ring (337) is connected inside the second sealing groove (336), and the outer periphery of the second sealing ring (337) abuts against the end surface of the filter element body (34).
9. The low-cost filter according to claim 4, characterized in that The outer side of the support sleeve (33) is sleeved with a spirally mounted filter stack (35).
10. The low-cost filter according to claim 4, characterized in that The filter element (34) is made of activated carbon fibers.