Filter with double filter elements

Abstract

The utility model discloses a double-filter-element filter and relates to the technical field of filters. Comprising a filter, the filter comprises a filter cartridge, a main filter element and an auxiliary filter element are arranged in the filter cartridge, a main water inlet and a first purified water outlet which correspond to the main filter element and the auxiliary filter element respectively are formed in the top of the filter cartridge, and a second purified water outlet located between the main filter element and the auxiliary filter element is formed in one side of the filter cartridge; and a central supporting pipe is also arranged in the filter cartridge. The effective filtering area is remarkably increased through the multiple annularly-distributed main filter elements, the auxiliary filter elements achieve uniform distribution of secondary filtering water flow through the annular water inlet holes, the contact time is prolonged through cooperation of the auxiliary filter elements and the independent filter cavities, and the water purification precision is improved through double filtering; the drainage cover is quickly disassembled and assembled by matching the hinged semicircular hoop with the locking screw rod, the main filter element and the auxiliary filter element are pulled out for replacement, the maintenance time is shortened, pipeline disassembly is completely avoided, and the use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technical field, concretely is a kind of double filter element filter. BACKGROUND

[0002] Water purifier is also called water purifier, water purifier, it is water treatment equipment according to the water use requirement to water quality is carried out depth filtration, purification treatment. Water purifier is generally referred to as small purifier for domestic use, filter is important component on water purifier, but the filter of prior art still has following insufficient when using:

[0003] In prior art, the inside of traditional filter only has single filter element, filtering effect is poor and filter element needs to be disassembled pipe or whole shell when replacing, time-consuming operation and easy to damage sealing structure, and use effect is not ideal. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of double filter element filter to solve the problem in background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of double filter element filter, including filter, the filter includes filter cartridge, the inside of the filter cartridge is provided with main filter element and auxiliary filter element, the top of the filter cartridge is provided with main water inlet and purification outlet one respectively corresponding with main filter element and auxiliary filter element, one side of the filter cartridge is provided with purification outlet two between main filter element and auxiliary filter element.

[0006] Further, the inside of the filter cartridge is also provided with center support pipe, the both ends of the center support pipe are provided with filter element head and support disc respectively.

[0007] Further, the number of the main filter element is several, and the several main filter elements are annularly distributed outside the center support pipe, one end of the main filter element penetrates the filter element head and extends to one side of the filter element head.

[0008] Further, the both ends of the auxiliary filter element are provided with filter element cover one and filter element cover two respectively.

[0009] Further, one side of the filter element cover two is provided with center threaded head, and one end of the center threaded head away from the filter element cover two is threadedly connected with the inside of the filter element head.

[0010] Further, the inside of the auxiliary filter element is provided with filter cavity, and one side of the filter element cover two is also provided with several water inlet holes annularly distributed outside the center threaded head, and the water inlet holes are communicated with the filter cavity.

[0011] Further, the outside of the filter element head is provided with not less than one sealing ring one, and the outside of the filter element cover two is provided with not less than one sealing ring two.

[0012] Further, one end of the filter cartridge is connected with a drain cover through a clamp, one side of the drain cover is provided with a drain port, and a sealing cover is threadedly sleeved on the drain port.

[0013] Further, the opposite ends of the filter cartridge and the drain cover are provided with annular sealing grooves, and a sealing ring three is sleeved in the two sealing grooves.

[0014] Further, a plurality of support columns are annularly distributed on one side of the support disc, the support columns are in abutment with the drain cover at the ends away from the support disc, and the bottom of the filter cartridge is provided with not less than one support.

[0015] Compared with the prior art, the double-filter-core filter has the following beneficial effects:

[0016] The double-filter-core filter significantly increases the effective filtering area through the plurality of annularly distributed main filter cores, realizes uniform distribution of the secondary filtration water flow through the annular water inlet hole of the secondary filter core, prolongs the contact time in cooperation with the independent filter cavity, and improves the water quality purification precision through double filtration. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is an explosion view of the drain cover structure of the utility model;

[0019] Figure 3 It is a filter cartridge internal structure schematic view of the utility model;

[0020] Figure 4 It is a main filter core structure explosion view of the utility model;

[0021] Figure 5 It is a filter cartridge structure sectional view of the utility model;

[0022] Figure 6 It is a drain cover structure sectional view of the utility model;

[0023] Figure 7 It is a secondary filter core structure sectional view of the utility model.

[0024] In the figure: 1, filter; 11, filter cartridge; 111, main water inlet; 112, purified water outlet one; 113, purified water outlet two; 114, support; 12, main filter core; 13, auxiliary filter core; 14, center support pipe; 141, filter core head; 1411, sealing ring one; 142, support disc; 1421, support column; 15, filter core cover one; 16, filter core cover two; 161, center threaded head; 162, water inlet hole; 163, sealing ring two; 17, clamp; 171, semicircular clamp; 172, locking screw; 173, locking nut; 18, drain cover; 181, drain port; 182, sealing cover; 19, sealing groove; 191, sealing ring three. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-7 The utility model discloses a double filter core filter, including filter 1, filter 1 includes filter cartridge 11, the inside of filter cartridge 11 is provided with main filter core 12 and auxiliary filter core 13, the top of filter cartridge 11 is provided with main water inlet 111 and purified water outlet one 112 respectively corresponding with main filter core 12 and auxiliary filter core 13, one side of filter cartridge 11 is provided with purified water outlet two 113 between main filter core 12 and auxiliary filter core 13.

[0027] Specifically, the inside of filter cartridge 11 is further provided with center support pipe 14, and the two ends of center support pipe 14 are respectively provided with filter core head 141 and support disc 142.

[0028] In the embodiment, the setting of center support pipe 14 ensures the relative stability of filter core head 141 and support disc 142, the connecting part of filter core head 141 and center support pipe 14 adopts a conical cavity, so that when center support pipe 14 is assembled with filter core head 141, the initial section of the conical cavity guides center support pipe 14, and the rear section realizes the assembly effect of getting tighter with insertion.

[0029] Specifically, the number of main filter core 12 is several, and the several main filter core 12 is annularly distributed outside the center support pipe 14, and one end of main filter core 12 penetrates filter core head 141 and extends to one side of filter core head 141.

[0030] In the embodiment, the arrangement of the filter core head 141 ensures the assembly stability of the plurality of main filter cores 12. The water flows into the inside of the filter cartridge 11 through the main water inlet 111 to the corresponding part of the main filter core 12. After being filtered by the main filter core 12, the water flows to the side of the filter core head 141, that is, the cavity between the main filter core 12 and the auxiliary filter core 13. When it is needed to discharge the water purified once, the water can be discharged through the purified water outlet two 113. If secondary purification is needed, the sealing cover 182 or the valve is arranged at the purified water outlet two 113 to block it. The air gap is arranged between the two adjacent main filter cores 12 to avoid the blockage of the main filter core 12 due to the accumulation of impurities, thereby prolonging the cleaning cycle.

[0031] Specifically, the two ends of the auxiliary filter core 13 are respectively provided with the filter core cover one 15 and the filter core cover two 16.

[0032] In the embodiment, the filter core cover one 15 and the filter core cover two 16 are used to limit the auxiliary filter core 13.

[0033] Specifically, one side of the filter core cover two 16 is provided with a center threaded head 161. The end of the center threaded head 161 away from the filter core cover two 16 is threadedly sleeved with the inside of the filter core head 141.

[0034] In the embodiment, the filter core cover two 16 is threadedly sleeved with the filter core head 141 through the center threaded head 161, which ensures the stability of the relative position of the main filter core 12 and the auxiliary filter core 13 and the connection stability of the filter core cover two 16 and the filter core head 141.

[0035] Specifically, the inside of the auxiliary filter core 13 is provided with a filter cavity. One side of the filter core cover two 16 is further provided with a plurality of water inlet holes 162 which are annularly distributed outside the center threaded head 161. The water inlet holes 162 are in communication with the filter cavity.

[0036] In the embodiment, after being filtered once, the water enters the space between the filter core cover two 16 and the filter core head 141. When secondary purification is needed, the water filtered once is uniformly flowed into the inside of the filter cavity through the water inlet holes 162, and is discharged through the purified water outlet one 112 after being filtered by the auxiliary filter core 13, thereby realizing the secondary purification.

[0037] Specifically, the outside of the filter core head 141 is sleeved with a sealing ring one 1411 in a number not less than one. The outside of the filter core cover two 16 is sleeved with a sealing ring two 163 in a number not less than one.

[0038] In the embodiment, the arrangement of the sealing ring one 1411 ensures the sealing property between the filter core head 141 and the inner wall of the filter cartridge 11. The arrangement of the sealing ring two 163 ensures the sealing property between the filter core cover two 16 and the inner wall of the filter cartridge 11.

[0039] Specifically, one end of the filter cartridge 11 is connected with a drain cover 18 through a clamp 17, one side of the drain cover 18 is provided with a drain port 181, and a sealing cover 182 is threadedly sleeved on the drain port 181.

[0040] In the embodiment, the drain hole is used for draining water after primary purification in the filter cartridge 11 and can also be used as a water inlet.

[0041] Specifically, the opposite ends of the filter cartridge 11 and the drain cover 18 are both provided with annular sealing grooves 19, and the interiors of the two sealing grooves 19 are jointly sleeved with a sealing ring three 191, and the clamp 17 comprises two semicircular clamps 171 which are hingedly connected at one end and locked at the other end through a locking screw 172 and a locking nut 173.

[0042] In the embodiment, the design that the two semicircular clamps 171 are hingedly connected at one end shortens the disassembly and assembly time, and the two sides of the inner wall of each semicircular clamp 171 are both provided with inclined surfaces, which makes the two semicircular clamps 171 tightly clamp the sealing grooves 19 and apply a relative moving force to the two sealing grooves 19, so that the two sealing grooves 19 further extrude the sealing ring three 191, and the connection sealing property of the filter cartridge 11 and the drain cover 18 is further ensured, one end of one of the semicircular clamps 171 away from the hinged connection is hingedly connected with the locking screw 172, the locking screw 172 is threadedly sleeved with the locking nut 173, the locking nut 173 is provided with a butterfly handle, and rotating the locking nut 173 abuts against the other semicircular clamp 171, so that the two ends of the two semicircular clamps 171 away from the hinged connection move relatively, and the clamp 17 tightly clamps the two sealing grooves 19, when the main filter element 12 and the auxiliary filter element 13 are replaced, the clamp 17 is only needed to be loosened to be opened, the drain cover 18 can be disassembled, the main filter element 12 and the auxiliary filter element 13 can be pulled out for replacement, and the later maintenance efficiency is greatly improved.

[0043] Specifically, the support disc 142 is annularly distributed with a plurality of support columns 1421 on one side, one end of the support column 1421 away from the support disc 142 abuts against the drain cover 18, and the bottom of the filter cartridge 11 is provided with a number of supports 114.

[0044] In the embodiment, the support column 1421 abuts against the drain cover 18, so that the drain cover 18 is automatically pressed against the support disc 142 after being connected with the filter cartridge 11, and meanwhile, the support column 1421 can separate the support disc 142 and the drain cover 18, so that the water flow passes through smoothly, the bottom of the filter cartridge 11 is welded with a screw rod, and the top of the support 114 is concave and arc-shaped to adapt to the shape of the filter cartridge 11, which makes the single screw rod cooperate with the nut to fix the support 114, without an additional limiting structure, and the operation is simpler.

[0045] In summary, the double filter element filter, by multiple annular distribution main filter element 12 significantly increase the effective filter area, secondary filter element 13 through the annular water inlet hole 162 to achieve uniform distribution of secondary filtration water flow, with independent filter cavity prolong contact time, double filtration makes the water purification precision, using the clamp 17 connection structure and double sealing groove 19 design, through the articulated half circle hoop 171 cooperate locking screw 172 to achieve the drain cover 18 quick disassembly, pull out the main filter element 12 and secondary filter element 13 for replacement, maintenance time is shortened and completely avoid pipeline disassembly, use more convenient.

[0046] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-cartridge filter comprising a filter (1), characterized in that: The filter (1) comprises a filter cartridge (11), the inside of the filter cartridge (11) is provided with a main filter core (12) and a secondary filter core (13), the top of the filter cartridge (11) is provided with a main water inlet (111) and a purified water outlet I (112) corresponding to the main filter core (12) and the secondary filter core (13) respectively, and one side of the filter cartridge (11) is provided with a purified water outlet II (113) located between the main filter core (12) and the secondary filter core (13).

2. A dual-cartridge filter according to claim 1, wherein: The inside of the filter cartridge (11) is also provided with a center support pipe (14), and both ends of the center support pipe (14) are provided with a filter core sealing head (141) and a support disc (142) respectively.

3. A dual-cartridge filter according to claim 1, wherein: The number of the main filter core (12) is several, and the several main filter cores (12) are annularly distributed outside the center support pipe (14), and one end of the main filter core (12) penetrates through the filter core sealing head (141) and extends to one side of the filter core sealing head (141).

4. A dual-cartridge filter according to claim 2, wherein: Both ends of the secondary filter core (13) are provided with a filter core cover I (15) and a filter core cover II (16) respectively.

5. A dual-cartridge filter according to claim 4, wherein: One side of the filter core cover II (16) is provided with a center threaded head (161), and one end of the center threaded head (161) away from the filter core cover II (16) is threadedly sleeved with the inside of the filter core sealing head (141).

6. A dual-cartridge filter according to claim 4, wherein: The inside of the secondary filter core (13) is provided with a filter cavity, and one side of the filter core cover II (16) is also provided with a plurality of water inlet holes (162) annularly distributed outside the center threaded head (161), and the water inlet holes (162) are communicated with the filter cavity.

7. A dual-cartridge filter according to claim 4, wherein: The outside of the filter core sealing head (141) is sleeved with a sealing ring I (1411) in number not less than one, and the outside of the filter core cover II (16) is sleeved with a sealing ring II (163) in number not less than one.

8. The dual-cartridge filter of claim 1, wherein: One end of the filter cartridge (11) is connected with a drain cover (18) through a clamp (17), one side of the drain cover (18) is provided with a drain port (181), and a sealing cover (182) is threadedly sleeved on the drain port (181).

9. A dual-cartridge filter according to claim 8, wherein: The opposite ends of the filter cartridge (11) and the drain cover (18) are both provided with annular sealing grooves (19), and the inside of the two sealing grooves (19) is jointly sleeved with a sealing ring III (191), and the clamp (17) comprises two semicircular clamps (171) which are hingedly connected at one end and locked at the other end through a locking screw (172) and a locking nut (173).

10. The dual-cartridge filter of claim 2, wherein: A plurality of support columns (1421) are annularly distributed on one side of the support disc (142), one end of the support column (1421) away from the support disc (142) abuts against the drain cover (18), and the bottom of the filter cartridge (11) is provided with a support (114) in number not less than one.

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