CN116492746A - Filter element mounting structure of fluid filter - Google Patents

Filter element mounting structure of fluid filter Download PDF

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Publication number
CN116492746A
CN116492746A CN202310676931.2A CN202310676931A CN116492746A CN 116492746 A CN116492746 A CN 116492746A CN 202310676931 A CN202310676931 A CN 202310676931A CN 116492746 A CN116492746 A CN 116492746A
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CN
China
Prior art keywords
filter
shaped
fluid
cylinder
filter cartridge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202310676931.2A
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Chinese (zh)
Other versions
CN116492746B (en
Inventor
张太宇
李金兵
王笛
石化海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinxiang Tuqiang Filter Equipment Co ltd
Original Assignee
Xinxiang Tuqiang Filter Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xinxiang Tuqiang Filter Equipment Co ltd filed Critical Xinxiang Tuqiang Filter Equipment Co ltd
Priority to CN202310676931.2A priority Critical patent/CN116492746B/en
Publication of CN116492746A publication Critical patent/CN116492746A/en
Application granted granted Critical
Publication of CN116492746B publication Critical patent/CN116492746B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31Self-supporting filtering elements
    • B01D29/35Self-supporting filtering elements arranged for outward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/92Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate

Abstract

The invention discloses a filter element mounting structure of a fluid filter, which relates to the technical field of filters and comprises a mounting seat, a filter element and a filter cartridge, wherein the filter element is fixed in the filter cartridge and divides the filter cartridge into two chambers; two press-in communication valves are obliquely fixed at one end of the filter cylinder, the press-in communication valves are provided with pressing end faces perpendicular to the inclined angle of the press-in communication valves, and a fluid port is formed in the middle of each pressing end face; the inside of mount pad is equipped with the arc inclined plane that is parallel to each other with pressing the terminal surface with the position that the push-in communication valve corresponds, and the one end that is close to the filter cartridge of arc inclined plane has seted up the fluid through-hole. According to the filter element mounting structure of the fluid filter, the filter element is easy to assemble, disassemble and replace, an auxiliary assembling and disassembling tool is not needed, and the downtime of equipment is shortened; meanwhile, the fluid inlet and outlet of the filter cylinder can be automatically cut off in the replacement process, so that the fluid is prevented from overflowing.

Description

Filter element mounting structure of fluid filter
Technical Field
The invention relates to the technical field of filters, in particular to a filter element mounting structure of a fluid filter.
Background
Hydraulic fluid and lubrication fluid circulation typically requires the use of a fluid filter, with the fluid being filtered through a filter element disposed within the filter structure. When the filter works, fluid to be filtered flows through the filter, particulate impurities in the fluid are intercepted by the filter element, and the filter element is required to be taken out and replaced periodically in order to ensure the filtering effect of the filter element.
At present, most of common filter element mounting structures are spin-on type, and comprise a mounting seat, a filter element and a shell which are arranged on equipment. In the spin-on structure, the filter core is usually arranged in the shell, then the shell is connected with the mounting seat through threads, the filter core is fixed in a sealing cavity formed by the mounting seat and the shell, the shell and the mounting seat of the filter core are required to be screwed down through larger force, the sealing effect is ensured, and the filter core is required to be disassembled and assembled by an auxiliary tool when the filter core is disassembled and assembled, so that the equipment downtime is prolonged. Meanwhile, when the filter element is replaced, liquid is reserved in the shell, so that the liquid is easy to leak and overflow in the disassembling process.
Therefore, it is necessary to provide a cartridge mounting structure for a fluid filter to solve the above-mentioned problems.
Disclosure of Invention
(one) solving the technical problems
The invention aims to provide a filter element mounting structure of a fluid filter, which is convenient to replace and can prevent fluid from overflowing.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the filter element mounting structure of the fluid filter comprises a mounting seat, a filter element and a filter cartridge, wherein the filter element is fixed in the filter cartridge and divides the filter cartridge into two chambers;
one end of the filter cylinder is fixed with a press-in communication valve for controlling the on-off of the cavity and the outside, the two press-in communication valves are circumferentially arranged along the axial center line of the filter cylinder and are inclined along the circumferential arrangement direction of the two press-in communication valves, the press-in communication valve is provided with a pressing end face perpendicular to the inclination angle of the press-in communication valve, and the middle part of the pressing end face is provided with a fluid port;
the mounting seat is provided with an arc inclined plane which is parallel to the pressing end surface in the position corresponding to the pressed-in type communication valve in the mounting seat, one end of the arc inclined plane, which is close to the filter cylinder, is provided with a fluid through hole, and the liquid inlet pipe and the liquid outlet pipe are respectively communicated with the two fluid through holes;
the filter cylinder is provided with a T-shaped limiting block fixed at the axial center line of one end of the press-in type communication valve, a circular limiting cavity is arranged in the middle of the inner side of the mounting seat, and a strip-shaped through hole for a cross rod at the end part of the T-shaped limiting block to pass through is formed in one side of the circular limiting cavity.
Further, the filter cartridge comprises a cartridge cover and a cartridge body, one end of the filter element is in sealing connection with the cartridge body through a second cylindrical limiting seat, and the other end of the filter element is in sealing connection with the cartridge cover through a connecting piece.
Further, the push-in type communication valve is fixedly connected with the cylinder cover, the cylinder cover is internally fixed with a cylinder-shaped partition plate for separating the two push-in type communication valves into two chambers, the connecting piece comprises a cover plate and a first cylinder-shaped limiting seat, the cover plate is connected with the cylinder-shaped partition plate through a stepped groove, a connecting sealing ring is arranged at the stepped groove to ensure the connection tightness, and the first cylinder-shaped limiting seat is in sealing connection with the end part of the filter element.
Further, the mount pad cup joints in the outside of cover, and the outside of cover is fixed with the guide block, the spacing groove has been seted up with the level to one side of mount pad, and the one end of spacing groove extends to the port department of mount pad and is equipped with the guide slot, and the other end of spacing groove is equipped with the elastic strip, and the inboard tip of elastic strip is fixed with the spacing fixture block that is used for spacing the guide block.
Further, the push-in type communication valve comprises a limiting pipe, the limiting pipe penetrates through the inside of the limiting pipe, the movable pipe and the limiting pipe are in sliding sealing through a plurality of first sealing rings, one end of the movable pipe, which is located in the cylinder cover, is provided with a blocking and threaded connection with a limiting nut, a side hole is formed in the outer side of the end, the other end of the movable pipe is provided with a flanging and is provided with a pressing end face, an end face sealing ring is fixed on the pressing end face, and a first reset spring is arranged between the flanging and the limiting pipe.
Further, an arc-shaped limit groove matched with the movement track of the press-in communication valve is formed in the inner side of the mounting seat, and the arc-shaped inclined surface is located at the bottom of the arc-shaped limit groove.
Further, the length of the vertical rod of the T-shaped limiting block is equal to the depth of the strip-shaped through hole, the end face A is arranged at the bottom end of the T-shaped limiting block, and the end face B is arranged at the position corresponding to the mounting seat.
Further, an air inlet is arranged in the middle of the bottom end of the cylinder body, and a one-way valve is arranged in the air inlet.
Further, the check valve comprises an umbrella-shaped sealing plug and a hollow bolt, wherein the hollow bolt is sleeved on the outer side of the umbrella handle end of the umbrella-shaped sealing plug and is limited in the air inlet hole, an air inlet through hole is formed in the umbrella handle of the umbrella-shaped sealing plug, and a second reset spring is arranged at one end, far away from the hollow bolt, of the umbrella-shaped sealing plug.
(III) beneficial effects
Compared with the prior art, the invention provides a filter element mounting structure of a fluid filter, which has the following beneficial effects:
1. this fluid filter's filter core mounting structure, when carrying out the filter core and changing, will hold the filter cartridge of old filter core and unscrew from the mount pad, will hold the filter cartridge of new filter core and connect soon with the mount pad, its easy, laborsaving of spin-on simultaneously need not with the help of supplementary assembly and disassembly tools for it is more convenient to filter cartridge dismouting change, improves filter core change efficiency, shortens downtime.
2. According to the filter element mounting structure of the fluid filter, the press-in type communication valve is arranged, when the filter cartridge is detached, the movable pipe is pushed to reset by the first reset spring, the communication between the inner cavity of the filter cartridge and the outside is blocked, and fluid overflow in the process of replacing the filter cartridge is reduced.
3. This fluid filter's filter core mounting structure through setting up guide block and guide way, makes T type stopper and bar through-hole easily counterpoint, can avoid the filter tube to connect conversely simultaneously, guarantees that fluid passes through the filter core according to the default flow direction, sets up elastic strip and spacing fixture block simultaneously, carries out spacingly to the guide block through spacing fixture block, avoids straining the rotatory not hard up sealed effect that influences push-in type communication valve and fluid through-hole junction of a section of thick bamboo.
4. According to the filter element mounting structure of the fluid filter, when fluid is liquid, the one-way valve is arranged, when the filter element is emptied, the press-in type communication valve is pressed to enable the cavity to be communicated with the outside, air is introduced into the air inlet hole through the air source equipment, the air pressure in the filter element is increased, the liquid is accelerated to be discharged and emptied, and the overflow of the liquid in the filter element replacement process is reduced.
Drawings
FIG. 1 is a schematic perspective view of the structure of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is a schematic perspective view of a mounting base of the present invention;
FIG. 4 is a schematic perspective view of an arcuate ramp according to the present invention;
FIG. 5 is a schematic cross-sectional view of a mounting base of the present invention;
FIG. 6 is a perspective view of the cap of the present invention;
FIG. 7 is a schematic cross-sectional view of a cartridge cap of the present invention;
FIG. 8 is a schematic cross-sectional view of a push-in communication valve of the present invention;
FIG. 9 is a schematic perspective view of an engagement member of the present invention;
FIG. 10 is a perspective view of the combination of the cap and the engagement member of the present invention;
FIG. 11 is a schematic cross-sectional view of the assembled state of the cap and the engagement member according to the present invention;
FIG. 12 is a side perspective view of the structure of the present invention;
fig. 13 is a schematic cross-sectional view of a one-way valve of the present invention.
In the figure: 1. a mounting base; 2. a cylinder cover; 3. a linking member; 4. a filter element; 5. a cylinder; 6. a press-in communication valve; 7. a one-way valve; 8. a filter cartridge; 11. a liquid inlet pipe; 12. a liquid outlet pipe; 13. a shifting block; 15. an elastic strip; 151. a limit clamping block; 16. a guide groove; 17. a limit groove; 18. an arc-shaped inclined plane; 181. a fluid through hole; 19. a circular limiting cavity; 20. a bar-shaped through hole; 21. a T-shaped limiting block; 22. a guide block; 23. a cylindrical separator; 31. a cover plate; 32. a stepped groove; 33. a sealing ring is connected; 34. a first cylindrical limit seat; 41. an end face A; 42. an end face B; 51. a second cylindrical limit seat; 52. an air inlet hole; 61. an end face seal ring; 62. a first return spring; 63. a movable tube; 64. a first seal ring; 65. a limiting tube; 66. a side hole; 67. a second seal ring; 68. a limit nut; 71. a second return spring; 72. an umbrella-shaped sealing plug; 73. a hollow bolt; 74. an air inlet through hole; 75. and a sealing gasket.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1 to 13, a filter element mounting structure of a fluid filter includes a mounting seat 1, a filter element 4 and a filter cartridge 8, wherein the filter element 4 is fixed inside the filter cartridge 8 and divides the filter cartridge 8 into two chambers; one end of the filter cylinder 8 is fixed with a press-in communication valve 6 for controlling the on-off of the cavity and the outside, the two press-in communication valves 6 are circumferentially distributed along the axial center line of the filter cylinder 8 and are inclined along the circumferential distribution direction of the press-in communication valves 6, the press-in communication valves 6 are provided with pressing end faces perpendicular to the inclination angle of the press-in communication valves 6, and the middle part of each pressing end face is provided with a fluid port; the installation seat 1, the position of the installation seat 1 corresponding to the pressed-in type communication valve 6 is provided with an arc inclined surface 18 parallel to the pressing end surface, one end of the arc inclined surface 18 close to the filter cylinder 8 is provided with a fluid through hole 181, and the liquid inlet pipe 11 and the liquid outlet pipe 12 are respectively communicated with the two fluid through holes 181; the filter cylinder 8 is provided with a T-shaped limiting block 21 fixed at the axial center line of one end of the press-in communication valve 6, a circular limiting cavity 19 for the cross rod at the end part of the T-shaped limiting block 21 to rotate is arranged in the middle of the inner side of the mounting seat 1, and a strip-shaped through hole 20 for the cross rod at the end part of the T-shaped limiting block 21 to pass through is formed in one side of the circular limiting cavity 19.
Specifically, the length of the vertical rod of the T-shaped limiting block 21 is equal to the depth of the strip-shaped through hole 20, the bottom end of the T-shaped limiting block 21 is provided with an end face a41, and the mounting seat 1 and the corresponding position thereof are provided with an end face B42.
When the filter cylinder 8 is installed, the T-shaped limiting block 21 is aligned with the strip-shaped through hole 20, the filter cylinder 8 is inserted into the installation seat 1, then the filter cylinder 8 is rotated, the press-in type communication valve 6 is rotated to the position of the fluid through hole 181, and the installation can be completed, so that the filter cylinder 8 is easy to disassemble and replace, the downtime is reduced, and meanwhile, an auxiliary disassembly and assembly tool is not needed.
In some embodiments, to facilitate fixing the filter element 4, the filter cartridge 8 includes a cylinder cover 2 and a cylinder body 5, one end of the filter element 4 is connected with the cylinder body 5 in a sealing manner through a second cylindrical limiting seat 51, and the other end of the filter element 4 is connected with the cylinder cover 2 in a sealing manner through a connecting piece 3.
Specifically, the press-in type communication valve 6 is fixedly connected with the cylinder cover 2, the cylinder cover 2 is internally fixed with a cylinder-shaped partition plate 23 for separating the two press-in type communication valves 6 into two chambers, the connecting piece 3 comprises a cover plate 31 and a first cylinder-shaped limiting seat 34, the cover plate 31 is connected with the cylinder-shaped partition plate 23 through a stepped groove 32, a connecting sealing ring 33 is arranged at the stepped groove 32 to ensure the connection tightness, the first cylinder-shaped limiting seat 34 is in sealing connection with the end part of the filter element 4, the first cylinder-shaped limiting seat 34 and the second cylinder-shaped limiting seat 51 are matched with the end cover of the filter element 4, the first cylinder-shaped limiting seat 34 and the second cylinder-shaped limiting seat 51 are inserted into the end cover of the filter element 4, and the outer wall and the inner wall of the end cover are sealed by the end cover sealing ring.
In addition, the inner side of the cylinder cover 2 is provided with a reinforcing rib plate to improve the structural strength.
The cover plate 31 is provided with the stepped groove 32, so that the end face of the cylindrical partition plate 23 can prop against the stepped surface of the stepped groove 32 and limit each other, the connection is more stable, and meanwhile, the connecting sealing ring 33 is arranged, so that the sealing effect of the joint of the two is ensured.
In some embodiments, in order to facilitate the cross bar of the T-shaped limiting block 21 to be aligned with the strip-shaped through hole 20 and pass through, the mounting seat 1 is sleeved on the outer side of the cylinder cover 2, the guide block 22 is fixed on the outer side of the cylinder cover 2, the limiting groove 17 is formed in one side and the horizontal side of the mounting seat 1, one end of the limiting groove 17 extends to the port of the mounting seat 1 and is provided with the guide groove 16, and the other end of the limiting groove 17 is provided with the elastic strip 15.
In addition, the limiting block 151 for limiting the guide block 22 is fixed to the inner end of the elastic strip 15, so that the filter cartridge 8 can be prevented from rotating during use.
In some embodiments, the push-in communication valve 6 includes a limiting tube 65, a movable tube 63 penetrates through the limiting tube 65, the movable tube 63 and the limiting tube 65 are sealed in a sliding manner through a plurality of first sealing rings 64, one end of the movable tube 63 located in the cylinder cover 2 is provided with a plug and is in threaded connection with a limiting nut 68, a side hole 66 is formed in the outer side of the end, the other end of the movable tube 63 is provided with a flange and is formed with a pressing end face, an end face sealing ring 61 is fixed on the pressing end face, and a first reset spring 62 is arranged between the flange and the limiting tube 65.
One end of the push-in communication valve 6 is limited by a limiting nut 68, so that the push-in communication valve 6 is convenient to maintain and replace, and meanwhile, a second sealing ring 67 is arranged between the limiting nut 68 and the limiting pipe 65, so that the sealing effect of the position is improved.
In some embodiments, in order to facilitate determining whether the push-in communication valve 6 rotates in place in the screwing process, an arc-shaped limiting groove matched with the movement track of the push-in communication valve 6 is arranged on the inner side of the mounting seat 1, the arc-shaped inclined surface 18 is positioned at the bottom of the arc-shaped limiting groove, the rotation angle of the push-in communication valve 6 is limited through the arc-shaped limiting groove, and specifically, the central angle of the arc-shaped limiting groove is smaller than 180 °.
In some embodiments, to facilitate the evacuation of the liquid in the filter cartridge 8, an air inlet 52 is provided in the middle of the bottom end of the barrel 5, and a one-way valve 7 is provided in the air inlet 52.
Specifically, the check valve 7 includes umbrella-shaped sealing plug 72 and hollow bolt 73, and hollow bolt 73 cup joints in umbrella-shaped sealing plug 72 umbrella stick end outside to with it spacing in inlet port 52, umbrella-shaped sealing plug 72's umbrella stick department has seted up inlet port 74, and umbrella-shaped sealing plug 72 keeps away from hollow bolt 73's one end is equipped with second reset spring 71, and umbrella-shaped sealing plug 72 chute cover diameter is less than the aperture of inlet port 52.
In addition, the hollow bolt 73 is in threaded connection with the air inlet hole 52, an inner hexagonal hole is formed in the middle of the hollow bolt 73, a sealing washer 75 is arranged at one end of the hollow bolt 73 located in the air inlet hole 52, and the sealing effect of the threaded connection position of the hollow bolt 73 and the air inlet hole 52 is improved.
When the liquid in the filter cylinder 8 needs to be emptied, the filter cylinder 8 is inverted downwards by the cylinder cover 2, the press-in type communication valve 6 is pressed to enable the cavity to be communicated with the outside, and then air is introduced into the air inlet hole 52 through the air source equipment to increase the air pressure in the filter cylinder 8 so as to accelerate the liquid discharge. In addition, the umbrella-shaped sealing plug 72 and the umbrella cover are far away from the hollow bolt 73 by pressing, so that the air pressure inside and outside the filter cylinder 8 is balanced, and the liquid discharge is quickened.
To sum up: the following describes the replacement flow of the filter element 4 in detail:
when the filter cartridge 8 is installed, the guide block 22 is aligned with the guide groove 16, the filter cartridge 8 is inserted into the installation seat 1, and then the filter cartridge 8 is rotated to complete the installation.
Insertion of the cartridge 8: one end of the filter cylinder 8 provided with the press-in type communication valve 6 is inserted into the mounting seat 1, and the T-shaped limiting block 21 and the strip-shaped through hole 20 are easy to align under the action of the guide block 22 and the guide groove 16; after full insertion, at this time, the end face a41 contacts the end face B42, the end face seal ring 61 contacts the arc-shaped inclined surface 18, and the cross bar of the T-shaped stopper 21 passes through the bar-shaped through hole 20 and enters the circular stopper cavity 19.
Rotating the cartridge 8: the cylinder body 5 is rotated along the arc-shaped limit groove, the insertion depth of the filter cylinder 8 is kept constant in the rotation process of the filter cylinder 8 under the action of the end face A41, the end face B42, the T-shaped limit block 21 and the circular limit cavity 19, the movable tube 63 slides towards the filter cylinder 8 under the action of the arc-shaped inclined plane 18, and the first reset spring 62 is stressed and compressed; when the movable pipe 63 rotates to the limit position of the arc-shaped limit groove, a fluid port in the middle of the pressing end surface is communicated with the fluid through hole 181, the joint is sealed by the end surface sealing ring 61, and one section of the movable pipe 63 provided with the side hole 66 slides out of the limit pipe 65 to the cavity, so that the two cavities are respectively communicated with the liquid inlet pipe 11 and the liquid outlet pipe 12; at this time, the flange at the end of the movable tube 63 contacts with the end of the limiting tube 65, preventing the movable tube 63 from retreating under the impact of fluid to affect the sealing effect of the joint, the guide block 22 passes over the limiting clamping block 151 and is limited by the limiting clamping block 151, and the filter cartridge 8 is prevented from rotating under the action of the guide block 22 and the limiting clamping block 151 to affect the sealing effect of the joint in the use process.
When the filter cartridge 8 is dismounted, the elastic strip 15 is shifted to enable the guide block 22 to be disengaged from the limiting clamping block 151, and then the filter cartridge 8 is rotated to detach the filter cartridge 8 from the mounting seat 1.
Toggle elastic strip 15: the elastic strip 15 is outwards stirred by the shifting block 13, so that the limiting clamping block 151 is separated from the guide block 22.
Rotating the cartridge 8: the filter cylinder 8 is rotated to the limit position along the rotation direction opposite to the installation process, at the moment, the movable tube 63 is reset under the action of the first reset spring 62, one end of the movable tube 63 provided with the side hole 66 enters the limit tube 65, and meanwhile, the end part of the limit tube 65 is sealed by the second sealing ring 67, so that the communication between the inner cavity of the filter cylinder 8 and the outside is blocked, and the overflow of fluid is reduced; the cross bar of the T-shaped limiting block 21 corresponds to the circular limiting cavity 19, and then the filter cylinder 8 can be pulled out of the mounting seat 1.
When the filter element 4 is replaced, the filter cartridge 8 is vertically placed, the cartridge cover 2 of the filter cartridge is downwards arranged, the press-in type communication valve 6 is pressed, air is introduced through the one-way valve 7, the umbrella-shaped sealing plug 72 is pushed away from the hollow bolt 73 under the action of air flow, the second reset spring 71 is compressed under the stress, the air enters the filter cartridge 8 from the air inlet through hole 74 and the air inlet hole 52, and the air pressure in the filter cartridge 8 is increased to accelerate the discharge and the clean of liquid in the filter cartridge 8, so that the overflow of the liquid in the process of replacing the filter element 4 is reduced.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a fluid filter's filter core mounting structure, includes mount pad (1), filter core (4) and strains a section of thick bamboo (8), its characterized in that: the filter element (4) is fixed in the filter cartridge (8) and divides the filter cartridge (8) into two chambers;
one end of the filter cylinder (8) is fixedly provided with a press-in communication valve (6) for controlling the on-off of the cavity and the outside, the two press-in communication valves (6) are circumferentially arranged along the axial center line of the filter cylinder (8) and are inclined along the circumferential arrangement direction of the filter cylinder, the press-in communication valve (6) is provided with a pressing end face perpendicular to the inclination angle of the press-in communication valve (6), and the middle part of the pressing end face is provided with a fluid port;
an arc-shaped inclined surface (18) parallel to the pressing end surface is arranged in the mounting seat (1) at a position corresponding to the press-in type communication valve (6), a fluid through hole (181) is formed in one end, close to the filter cylinder (8), of the arc-shaped inclined surface (18), and the liquid inlet pipe (11) and the liquid outlet pipe (12) are respectively communicated with the two fluid through holes (181);
the filter cylinder (8) is provided with a T-shaped limiting block (21) fixed at the axial center line of one end of the press-in communication valve (6), a circular limiting cavity (19) is arranged in the middle of the inner side of the mounting seat (1), and a strip-shaped through hole (20) for the end part of the T-shaped limiting block (21) to pass through is formed in one side of the circular limiting cavity (19).
2. A filter cartridge mounting structure for a fluid filter as defined in claim 1, wherein: the filter cartridge (8) comprises a cartridge cover (2) and a cartridge body (5), one end of the filter element (4) is in sealing connection with the cartridge body (5) through a second cylindrical limiting seat (51), and the other end of the filter element (4) is in sealing connection with the cartridge cover (2) through a connecting piece (3).
3. A fluid filter cartridge mounting structure according to claim 2, wherein: the utility model provides a filter cartridge, including cylinder cap (2), cylinder cap (2) are fixed with in cylinder cap (2), cylinder cap (2) internal fixation is used for separating two cylinder-shaped baffle (23) at two chambeies with two pressure-in communication valve (6), and linking piece (3) are including apron (31) and first tube-shape spacing seat (34), and apron (31) are connected with cylinder-shaped baffle (23) through ladder groove (32), and the tip sealing connection of first tube-shape spacing seat (34) and filter core (4).
4. A fluid filter cartridge mounting structure according to claim 2, wherein: the mounting seat (1) is sleeved on the outer side of the cylinder cover (2), the guide block (22) is fixed on the outer side of the cylinder cover (2), a limit groove (17) is formed in one side of the mounting seat (1) and the horizontal side, one end of the limit groove (17) extends to a port of the mounting seat (1) and is provided with the guide groove (16), the other end of the limit groove (17) is provided with an elastic strip (15), and a limit clamping block (151) used for limiting the guide block (22) is fixed on the inner side end of the elastic strip (15).
5. A fluid filter cartridge mounting structure according to claim 2, wherein: the utility model provides a push-in type communication valve (6) is including spacing pipe (65), the inside movable pipe (63) that runs through of spacing pipe (65), movable pipe (63) and spacing pipe (65) are through a plurality of first sealing washer (64) sliding seal, one end that movable pipe (63) are located cover (2) is equipped with the shutoff and threaded connection has stop nut (68) to side opening (66) have been seted up in this end outside, the other end of movable pipe (63) is equipped with the turn-ups and is formed with the terminal surface of pressing, is fixed with terminal surface sealing washer (61) on the terminal surface of pressing, is equipped with first reset spring (62) between turn-ups and the spacing pipe (65).
6. A filter cartridge mounting structure for a fluid filter as defined in claim 1, wherein: the inner side of the mounting seat (1) is provided with an arc-shaped limit groove matched with the motion track of the press-in type communication valve (6), and the arc-shaped inclined surface (18) is positioned at the bottom of the arc-shaped limit groove.
7. A filter cartridge mounting structure for a fluid filter as defined in claim 1, wherein: the length of the vertical rod of the T-shaped limiting block (21) is equal to the depth of the strip-shaped through hole (20), an end face A (41) is arranged at the bottom end of the T-shaped limiting block (21), and an end face B (42) is arranged at the position, corresponding to the mounting seat (1).
8. A fluid filter cartridge mounting structure according to claim 2, wherein: an air inlet hole (52) is formed in the middle of the bottom end of the cylinder body (5), and a one-way valve (7) is arranged in the air inlet hole (52).
9. A fluid filter cartridge mounting structure according to claim 8, wherein: the one-way valve (7) comprises an umbrella-shaped sealing plug (72) and a hollow bolt (73), the hollow bolt (73) is sleeved on the outer side of the umbrella handle end of the umbrella-shaped sealing plug (72) and is limited in the air inlet hole (52), an air inlet through hole (74) is formed in the umbrella handle of the umbrella-shaped sealing plug (72), and a second reset spring (71) is arranged at one end, far away from the hollow bolt (73), of the umbrella-shaped sealing plug (72).
CN202310676931.2A 2023-06-08 2023-06-08 Filter element mounting structure of fluid filter Active CN116492746B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310676931.2A CN116492746B (en) 2023-06-08 2023-06-08 Filter element mounting structure of fluid filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310676931.2A CN116492746B (en) 2023-06-08 2023-06-08 Filter element mounting structure of fluid filter

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080142426A1 (en) * 2004-06-29 2008-06-19 Donaldson Company, Inc. Liquid Filter Arrangement and Methods
KR20120025165A (en) * 2010-09-07 2012-03-15 엘지전자 주식회사 Apparatus for connecting of filter cartridge
CN107485902A (en) * 2017-09-30 2017-12-19 北京碧水源净水科技有限公司 A kind of rotating filter element structure
CN209934252U (en) * 2019-04-11 2020-01-14 佛山市美家生活电器有限公司 Water purifier convenient to renew cartridge more
CN212067991U (en) * 2020-01-02 2020-12-04 杭州老板电器股份有限公司 Mounting structure and purifier of filter core and filter core seat
CN112245997A (en) * 2020-12-21 2021-01-22 烟台骁龙环保材料有限公司 Water purifier filter element with protective structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080142426A1 (en) * 2004-06-29 2008-06-19 Donaldson Company, Inc. Liquid Filter Arrangement and Methods
KR20120025165A (en) * 2010-09-07 2012-03-15 엘지전자 주식회사 Apparatus for connecting of filter cartridge
CN107485902A (en) * 2017-09-30 2017-12-19 北京碧水源净水科技有限公司 A kind of rotating filter element structure
CN209934252U (en) * 2019-04-11 2020-01-14 佛山市美家生活电器有限公司 Water purifier convenient to renew cartridge more
CN212067991U (en) * 2020-01-02 2020-12-04 杭州老板电器股份有限公司 Mounting structure and purifier of filter core and filter core seat
CN112245997A (en) * 2020-12-21 2021-01-22 烟台骁龙环保材料有限公司 Water purifier filter element with protective structure

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