CN220951217U - Water purifier convenient for replacing filter element - Google Patents

Abstract

The utility model discloses a water purifier convenient for replacing a filter element, which relates to the technical field of water purification and comprises a shell, wherein one side of the inside of the shell is fixedly connected with a switch assembly, the top of the shell is movably connected with a cover plate, the top of the cover plate is provided with a switch hole, the inside of the switch hole is rotatably connected with the switch assembly, one side of the inside of the shell is fixedly connected with a fixed clamping block, one side of the fixed clamping block is fixedly connected with a sliding rod, one side of the sliding rod is inserted with a sliding groove, one side of the sliding groove is arranged on one side of a movable clamping block, one side of the inside of the sliding groove is fixedly connected with a first spring, the other end of the first spring is fixedly connected with one side of the sliding rod, both sides of the fixed clamping block and the movable clamping block are fixedly connected with clamping handles, and the clamping handles are movably connected with the outer wall of a filter element shell. By adopting the structure, the filter element shell can be stably connected between the two clamping handles, so that the practicability of the water purifier is improved.

Description

Water purifier convenient for replacing filter element

Technical Field

The utility model belongs to the technical field of water purification, and particularly relates to a water purifier with a conveniently replaced filter element.

Background

Along with the continuous improvement of pursuit of users to life quality, one of the household articles that water purifier product becomes necessary for the family is used for domestic water purification extensively gradually, and the water purifier can guarantee to a certain extent that user's water is safe clean, and the filter core inside the water purifier can be changed under the normal condition and frequently be 3 months to a year inequality, therefore a water purifier product that is convenient for change the filter core can improve the convenience and the usability of water purifier.

For example, chinese patent publication No. CN213012000U discloses a water purifier convenient for changing the filter core, this patent makes the board that turns over through stirring turn over, break away from with the draw-in groove, upwards mention the top cap, make filter core and first water pipe break away from, at this moment, first spring is to resume the original form because elastic deformation promotes the backup pad and rises, the backup pad rises and drives the filter core and rise, make the filter core one section distance higher than the filter section of thick bamboo, be convenient for the operator take out the filter core, take out the change back with the filter core, only need repeat above-mentioned operation with the top cap lid at the top of filter core, turn over board and draw-in groove joint alright, the change of filter core has been realized, easy operation is convenient.

Although this patent has solved the convenient problem of changing of filter core, but through set up 3 filter tanks at the filter cartridge top, install 3 filter cores at the inconvenient subsequent maintenance of 3 inside filter tanks of the same filter cartridge, the inconvenient investigation of inside jam of a certain filter tank is installed to the top cap both sides simultaneously, turns over the board with the draw-in groove joint of filter cartridge both sides, through the spring assembly of filter tank bottom, stir the board and turn over the board and can make the top cap pop out for the top cap flies out the filter tank easily and causes the top cap to damage.

Disclosure of utility model

Aiming at the problems in the background art, the utility model aims to provide a water purifier with a filter element convenient to replace, so as to solve the problems that a plurality of filter elements are installed in one filter element to cause inconvenient maintenance and unstable structure of a top cover buckle, and the top cover is easily damaged due to the fact that a component is popped out from the bottom of the filter element.

The technical aim of the utility model is realized by the following technical scheme:

The utility model provides a water purifier convenient to change filter core, includes the casing, inside one side fixedly connected with switch module of casing, casing top swing joint has the apron, the switch hole has been seted up at the apron top, the inside rotation of switch hole is connected with switch module, inside one side fixedly connected with fixed clamp splice of casing, fixed clamp splice one side fixedly connected with slide bar, the slide bar one side is pegged graft and is had the sliding tray, the sliding tray is seting up in removal clamp splice one side, the first spring of slide inside one side fixedly connected with of sliding tray, first spring other end fixedly connected with is in slide bar one side, fixed clamp splice and the equal fixedly connected with clamp holder of removal clamp splice one side, clamp holder swing joint is at filter core shell outer wall, the inside grafting of filter core shell cavity has the filter core lid, the slot has been seted up to filter core lid one side, inside grafting of slot has the buckle subassembly, buckle subassembly fixedly connected with is at filter core shell outer wall, the mounting panel subassembly is pegged graft to the casing back.

As the preferred technical scheme, the switch module includes limiting plate, handle, spacing ring, pivoted plate, bump and spliced pole, limiting plate fixed connection is in inside one side of casing, the bump is seted up in the limiting plate bottom, pivoted plate rotates to be connected in the limiting plate bottom, spliced pole fixed connection is at the pivoted plate top, the spliced pole rotates to be connected inside the switch hole, the spacing ring cup joints at the spliced pole outer wall, spacing ring fixed connection is at the apron top, handle fixed connection is at the spliced pole top.

As preferred technical scheme, buckle subassembly includes solid fixed ring, connecting block, spout, connecting hole, fixture block, connecting rod, second spring, screens hole, screens pole and pull handle, fixture block one end is pegged graft inside the slot, fixture block other end sliding connection is inside the spout, the spout is seted up in connecting rod one side, second spring one end fixed connection is in spout one side, second spring other end fixed connection is in fixture block one side, the connecting hole is seted up in spout one side, the connecting rod is pegged graft inside the connecting hole, connecting rod one end fixed connection is in fixture block one side, the screens hole has been seted up to the connecting rod other end, the inside rotation connection screens pole of screens pole, the inside both sides of fixed connection in pull handle respectively, pull handle swing joint is in connecting rod one side, connecting rod fixed connection is at solid fixed ring top, gu fixed ring fixed connection is in filter core shell outer wall.

As the preferred technical scheme, mounting panel subassembly includes fixed plate, couple, link and supporting component, link fixed connection is in the casing back, the couple articulates inside the link, fixed plate fixed connection is in couple one side, supporting component one end fixed connection casing back, supporting component other end fixed connection is in fixed plate one side.

As the preferred technical scheme, supporting component includes shell fragment, bracing piece, dashpot and gyro wheel, bracing piece one end fixed connection is at the casing back, the bracing piece other end swing joint is inside the shell fragment, shell fragment fixed connection is in fixed plate one side, the dashpot has all been seted up at shell fragment both ends, gyro wheel both ends are fixed connection respectively in dashpot top and bottom.

As the preferable technical scheme, filter core lid bottom fixedly connected with sealing block, the ring channel has been seted up to sealing block outer wall, the inside fixedly connected with sealing ring of ring channel, sealing block bottom fixedly connected with sealing washer.

As the preferred technical scheme, the inboard bottom fixedly connected with fixed block of casing, the recess has been seted up at the fixed block top, the spacing groove has been seted up to the recess inner wall, spacing inslot portion peg graft there is the stopper, the inside grafting of recess of complaining has the filter core shell, stopper fixed connection is at the filter core shell outer wall.

In summary, the utility model has the following advantages:

First, peg graft between two clamp handles through the filter core shell outer wall, the slide bar in the sliding tray that the clamp handle was seted up removes compression second spring, make the filter core shell can be in the stable connection between two clamp handles, the purpose that the filter core shell can simple dismouting has been reached, and the filter core shell can independently dismantle and install, the dismouting and the maintenance cost of filter core shell and filter core have been reduced, through switch module, the rotating handle drives the pivoted plate and rotates, make limiting plate and pivoted plate become level and parallel state by vertical state rotation, make the apron can shift out from the casing top, reach the purpose of the stable dismouting of apron, the time cost of apron dismantlement has been reduced, inside grafting of recess fixed through the inboard bottom of casing has the filter core shell, under the effect of stopper and spacing groove, the filter core shell can not take place to remove and rotate, make the filter core shell more stable inside the casing.

Second, through buckle subassembly, the pulling handle, under screens pole and screens hole effect, the connecting rod drives the fixture block and shifts out the slot for the filter core lid can be opened, when covering the filter core, then otherwise, this structure reaches the convenient purpose of dismouting of filter core lid, the convenience that improves the filter core and change passes through the mounting panel subassembly, the link on casing back articulates on the couple of fixed plate, the bracing piece is pegged graft inside the shell fragment, the light dismantlement of accessible gyro wheel, make the casing can easy to assemble and dismantle, the convenience of the dismouting of water purifier has been improved has reduced the time cost several maintenance costs that the filter core was changed simultaneously.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic view of the structure of the clamping holder of the present utility model;

FIG. 3 is a schematic view of the filter cartridge cover of the present utility model;

Fig. 4 is a schematic view of the mounting plate assembly of the present utility model.

Fig. 5 is a schematic diagram of the switch assembly structure of the present utility model.

Fig. 6 is an enlarged schematic view of the a portion of the present utility model.

Reference numerals: 1. the housing, 2, cover plate, 21, switch hole, 3, switch assembly, 31, limit plate, 32, handle, 33, limit ring, 34, rotation plate, 35, bump, 36, connection post, 4, mounting plate assembly, 41, fixing plate, 42, hook, 43, hanging ring, 44, support assembly, 441, spring plate, 442, support rod, 443, buffer slot, 444, roller, 5, fixing block, 51, groove, 52, limit slot, 53, limit block, 6, cartridge housing, 7, cartridge cover, 71, seal block, 72, annular groove, 73, seal ring, 74, seal gasket, 75, slot, 8, clip holder, 81, fixing clip, 82, moving clip, 83, slide slot, 84, slide bar, 85, first spring, 9, clip assembly, 91, fixing ring, 92, connection block, 93, slide slot, 94, connection hole, 95, clip block, 96, connection bar, 961, clip hole, 97, second spring, 98, clip bar, 99, pull handle.

Detailed Description

Example 1

Referring to fig. 1 to 6, the water purifier for facilitating filter element replacement according to the present embodiment includes a housing 1, a switch assembly 3 is fixedly connected to one side inside the housing 1, a cover plate 2 is movably connected to the top of the housing 1, a switch hole 21 is formed in the top of the cover plate 2, the switch assembly 3 is rotatably connected to the inside of the switch hole 21, a fixed clamping block 81 is fixedly connected to one side inside the housing 1, a sliding rod 84 is fixedly connected to one side of the fixed clamping block 81, a sliding groove 83 is inserted into one side of the sliding rod 84, the sliding groove 83 is formed on one side of the sliding clamping block 82, a first spring 85 is fixedly connected to one side inside the sliding groove 83, the other end of the first spring 85 is fixedly connected to one side of the sliding rod 84, both the fixed clamping block 81 and the same side of the sliding clamping block 82 are fixedly connected to a clamping handle 8, the clamping handle 8 is movably connected to the outer wall of the filter element housing 6, a filter element cover 7 is inserted into the cavity inside the filter element housing 6, a slot 75 is formed in one side of the filter element cover 7, a buckle assembly 9 is inserted into the slot 75, and the buckle assembly 9 is fixedly connected to the other side of the filter element housing 6, and the filter element is fixedly connected to the back surface of the filter element 4.

Make apron 2 convenient dismantlement through switch module 3, the dismantlement of casing 1 and wall has been made things convenient for through the subassembly at casing 1 back, make filter core lid 7 and filter core shell 6 can convenient dismantlement through buckle subassembly 9, peg graft between two clamp handles 8 through filter core shell 6, a clamp handle 8 fixed connection is in fixed clamp splice 81 one side, another clamp handle 8 fixed connection is in removal clamp splice 82 one side, under the effect of slide bar 84, sliding groove 83 and first spring, tension between two clamp handles 8 grow, make removal clamp splice 82 produce the slip, after filter core shell 6 inserts stably, under the effect of second spring 97 shrink force, remove clamp splice 82 and produce the resilience force, make the clamp handle 8 of removal clamp splice 82 one side produce an inwards force fastening filter core shell 6, make inside the installation casing 1 that filter core shell 6 can be stable, through the inboard bottom fixed connection of casing 1 fixed block 5, filter core shell 6 peg graft in the recess 51 at the top, filter core shell 6 outer wall fixed connection's stopper 53 peg graft in recess 51 the inside the recess 52 that the recess inner wall was seted up, the filter core shell 6 has rotated more stably, make filter core shell 6 has been restricted.

Example 2

Referring to fig. 5, the switch assembly 3 includes a limiting plate 31, a handle 32, a limiting ring 33, a rotating plate 34, a protruding point 35 and a connecting post 36, wherein the limiting plate 31 is fixedly connected to one side inside the housing 1, the protruding point 35 is formed at the bottom of the limiting plate 31, the rotating plate 34 is rotationally connected to the bottom of the limiting plate 31, the connecting post 36 is fixedly connected to the top of the rotating plate 34, the connecting post 36 is rotationally connected to the inside of the switch hole 21, the limiting ring 33 is sleeved on the outer wall of the connecting post 36, the limiting ring 33 is fixedly connected to the top of the cover plate 2, and the handle 32 is fixedly connected to the top of the connecting post 36; the handle 32 is rotated, the handle 32 and the rotating plate 34 are fixedly connected through the connecting column 36, the handle 32 drives the rotating plate 34 to rotate, the limiting plate 31 and the rotating plate 34 are changed into horizontal and parallel states from vertical states, the cover plate 2 can be taken down from the top of the filter element shell 6, otherwise, the cover plate 2 can be fixed on the top of the shell 1, and the purpose of conveniently installing and detaching the cover plate 2 is achieved.

Referring to fig. 3, the buckle assembly 9 includes a fixing ring 91, a connecting block 92, a chute 93, a connecting hole 94, a clamping block 95, a connecting rod 96, a second spring 97, a clamping hole 961, a clamping rod 98 and a pull handle 99, one end of the clamping block 95 is inserted into the slot 75, the other end of the clamping block 95 is slidably connected into the chute 93, the chute 93 is opened on one side of the connecting rod 96, one end of the second spring 97 is fixedly connected on one side of the chute 93, the other end of the second spring 97 is fixedly connected on one side of the clamping block 95, the connecting hole 94 is opened on one side of the chute 93, the connecting rod 96 is inserted into the connecting hole 94, one end of the connecting rod 96 is fixedly connected on one side of the clamping block 95, the other end of the connecting rod 96 is opened with a clamping hole 961, two ends of the clamping rod 98 are fixedly connected on two sides inside the pull handle 99, the pull handle 99 is movably connected on one side of the connecting rod 96, the connecting rod 96 is fixedly connected on the top of the fixing ring 91, and the fixing ring 91 is fixedly connected on the outer wall of the filter cartridge housing 6; pulling the pull handle 99, the distance from the top of the pull handle 99 to the axis of the clamping hole 961 is greater than the distance from the side of the pull rod to the axis of the clamping hole 961, and under the action of the clamping hole 961 and the clamping rod 98, the connecting rod 96 drives the clamping block 95 to move out of the slot 75, so that the filter element cover 7 can be opened, and the purpose that the filter element cover 7 can be simply and stably disassembled is achieved.

Referring to fig. 4, the mounting plate assembly 4 includes a fixing plate 41, a hook 42, a hanging ring 43 and a supporting assembly 44, wherein the hanging ring 43 is fixedly connected to the back of the housing 1, the hook 42 is hung inside the hanging ring 43, the fixing plate 41 is fixedly connected to one side of the hook 42, one end of the supporting assembly 44 is fixedly connected to the back of the housing 1, and the other end of the supporting assembly 44 is fixedly connected to one side of the fixing plate 41; the through hanging ring 43 is fixed on the back of the shell 1, the hanging ring 43 is fixed on one side of the fixing plate 41, the hanging hook 42 is hung inside the hanging ring 43, the fixing plate 41 is fixed on a wall surface, and under the supporting effect of the supporting component 44, the shell 1 can be vertically parallel to the wall surface plates, so that the purpose that the shell 1 can be stably hung on the wall surface is achieved.

Example 3

Referring to fig. 4, the supporting assembly 44 includes a spring plate 441, a supporting rod 442, a buffer slot 443 and a roller 444, wherein one end of the supporting rod 442 is fixedly connected to the back of the housing 1, the other end of the supporting rod 442 is movably connected to the inside of the spring plate 441, the spring plate 441 is fixedly connected to one side of the fixing plate 41, the buffer slot 443 is formed at both ends of the spring plate 441, and both ends of the roller 444 are respectively fixedly connected to the top and bottom of the buffer slot 443; through the inside gyro wheel 444 of buffer slot 443 that both ends were seted up of shell fragment 441, when the bracing piece 442 of fixed connection at the casing 1 back inserted, the distance between the both ends of shell fragment 441 was increased gradually, under the gyro wheel 444 effect, and gyro wheel 444 rotates and makes the resistance that the support column was inserted reduce, and the bracing piece 442 is inserted back both ends shrink of shell fragment 441, and the pressure of bracing piece 442 both sides increases, has improved the stability of bracing piece 442 grafting, has reached the stability of the vertical parallel of support casing 1 and several wall surfaces of fixed plate 41.

Referring to fig. 4, a sealing block 71 is fixedly connected to the bottom of the filter element cover 7, an annular groove 72 is formed in the outer wall of the sealing block 71, a sealing ring 73 is fixedly connected to the inside of the annular groove 72, and a sealing gasket 74 is fixedly connected to the bottom of the sealing block 71; the inside of the filter element shell 6 can be sealed through the sealing gasket 74 at the bottom of the sealing block 71, and the sealing ring 73 fixedly connected with the inside of the annular groove 72 at the outer wall of the sealing block 71 is in sealing contact with the inner wall of the filter element shell 6, so that the effect of sealing the second layer is achieved, and the aim of stable sealing performance of the filter element cover 7 and the filter element shell 6 is fulfilled.

Referring to fig. 2, a fixed block 5 is fixedly connected to the bottom of the inner side of the housing 1, a groove 51 is formed in the top of the fixed block 5, a limit groove 52 is formed in the inner wall of the groove 51, a limit block 53 is inserted into the limit groove 52, a filter element shell 6 is inserted into the groove 51, and the limit block 53 is fixedly connected to the outer wall of the filter element shell 6; the filter element shell 6 is inserted into the groove 51 at the top of the fixed block 5, and the movement and rotation of the filter element shell 6 are limited under the action of the limiting block 53 and the limiting groove 52, so that the purpose of improving the stability of the filter element shell 6 is achieved.

The use principle and the advantages are that: through the switch assembly 3 in the switch hole 21 at the top of the rotary cover plate 2, the handle 32 horizontally rotates for ninety degrees under the action of the limiting ring 33 and the connecting column 36, the rotating plate 34 under the limiting plate 31 passes through the convex points 35, the two are converted into a horizontal and parallel state from a vertical state, the cover plate 2 is detached, then the pull handle 99 of the buckle assembly 9 is pulled up, the connecting rod 96 in the connecting hole 94 moves to drive the clamping block 95 in the sliding groove 93 to move under the action of the clamping hole 961 and the clamping rod 98, the second spring 97 compresses, the clamping block 95 just moves out of the slot 75 when the pull handle 99 is vertical to the connecting block 92 at the top of the fixed ring 91, the filter element cover 7 is moved out, the sealing block 71, the sealing ring 73 in the annular groove 72 and the sealing gasket 74 at the bottom of the sealing block 71 are simultaneously moved out of the filter element shell 6, the two clamping handles 8 are propped up, the fixed clamping blocks 81 and the movable clamping blocks 82 which are respectively and fixedly connected with the two clamping handles 8 are pulled out from the filter element shell 6 under the action of the sliding groove 83, the sliding rod 84 and the first spring 85, the bottom of the filter element shell 6 is moved out from the inside of the groove 51 formed in the top of the fixed block 5, the limiting block 53 is simultaneously moved out from the inside of the limiting groove 52, the hanging ring 43 on one side of the fixing plate 41 is hung inside the hanging ring 43 on the back of the shell 1, the supporting component 44 is used for pulling out the supporting rod 442, the rollers 444 in the supporting rod 444 are pulled out at two ends of the elastic piece 441 and rotate to enable the supporting rod 442 to be conveniently moved out, the filter element can be conveniently replaced by the water purifier through the structure, meanwhile, the inner structure is more flexible and stable, the water purifier is convenient to detach, and the practicability of the water purifier is improved.

Claims (7)

1. The utility model provides a water purifier convenient to change filter core, includes casing (1), its characterized in that: the utility model discloses a switch assembly (3) is fixedly connected with one side of the inside of a shell (1), a cover plate (2) is movably connected with the top of the shell (1), a switch hole (21) is formed in the top of the cover plate (2), the switch assembly (3) is rotationally connected with the inside of the switch hole (21), a fixed clamping block (81) is fixedly connected with one side of the inside of the shell (1), a sliding rod (84) is fixedly connected with one side of the fixed clamping block (81), a sliding groove (83) is spliced on one side of the sliding rod (84), the sliding groove (83) is formed on one side of a movable clamping block (82), the utility model discloses a filter cartridge shell, including a filter cartridge shell (6), a sliding groove (83), a first spring (85) is fixedly connected to one side of the inside of the sliding groove (83), the other end of the first spring (85) is fixedly connected to one side of a sliding rod (84), a clamping holder (8) is fixedly connected to the same side of a fixed clamping block (81) and a movable clamping block (82), the clamping holder (8) is movably connected to the outer wall of the filter cartridge shell (6), a filter cartridge cover (7) is inserted into the cavity of the filter cartridge shell (6), a slot (75) is formed in one side of the filter cartridge cover (7), a buckle assembly (9) is inserted into the slot (75), the buckle assembly (9) is fixedly connected to the outer wall of the filter cartridge shell (6), the back of the shell (1) is fixedly connected with a mounting plate assembly (4).

2. A water purifier for facilitating replacement of a filter cartridge as recited in claim 1, wherein: the switch assembly (3) comprises a limiting plate (31), a handle (32), a limiting ring (33), a rotating plate (34), protruding points (35) and a connecting column (36), wherein the limiting plate (31) is fixedly connected to one side of the inside of the shell (1), the protruding points (35) are formed in the bottom of the limiting plate (31), the rotating plate (34) is rotationally connected to the bottom of the limiting plate (31), the connecting column (36) is fixedly connected to the top of the rotating plate (34), the connecting column (36) is rotationally connected to the inside of the switch hole (21), the limiting ring (33) is sleeved on the outer wall of the connecting column (36), the limiting ring (33) is fixedly connected to the top of the cover plate (2), and the handle (32) is fixedly connected to the top of the connecting column (36).

3. A water purifier for facilitating replacement of a filter cartridge as recited in claim 1, wherein: the buckle assembly (9) comprises a fixed ring (91), a connecting block (92), a chute (93), a connecting hole (94), a clamping block (95), a connecting rod (96), a second spring (97), a clamping hole (961), a clamping rod (98) and a pull handle (99), one end of the clamping block (95) is inserted into the slot (75), the other end of the clamping block (95) is slidingly connected into the chute (93), the chute (93) is arranged on one side of the connecting rod (96), one end of the second spring (97) is fixedly connected on one side of the chute (93), the other end of the second spring (97) is fixedly connected on one side of the clamping block (95), the connecting hole (94) is arranged on one side of the chute (93), the connecting rod (96) is inserted into the connecting hole (94), one end of the connecting rod (96) is fixedly connected on one side of the clamping block (95), the other end of the connecting rod (96) is provided with the clamping hole (961), the clamping rod (98) is rotationally connected inside the clamping rod (98), the two ends of the clamping rod (98) are fixedly connected to the two ends of the connecting rod (99) respectively on one side of the connecting rod (96), the fixing ring (91) is fixedly connected to the outer wall of the filter element shell (6).

4. A water purifier for facilitating replacement of a filter cartridge as recited in claim 1, wherein: the mounting plate assembly (4) comprises a fixing plate (41), a hook (42), a hanging ring (43) and a supporting assembly (44), wherein the hanging ring (43) is fixedly connected to the back of the shell (1), the hook (42) is hung inside the hanging ring (43), the fixing plate (41) is fixedly connected to one side of the hook (42), one end of the supporting assembly (44) is fixedly connected to the back of the shell (1), and the other end of the supporting assembly (44) is fixedly connected to one side of the fixing plate (41).

5. A water purifier for facilitating replacement of a filter cartridge as recited in claim 4, wherein: the supporting component (44) comprises an elastic sheet (441), a supporting rod (442), a buffer groove (443) and a roller (444), one end of the supporting rod (442) is fixedly connected to the back of the shell (1), the other end of the supporting rod (442) is movably connected to the inside of the elastic sheet (441), the elastic sheet (441) is fixedly connected to one side of the fixing plate (41), the buffer groove (443) is formed in two ends of the elastic sheet (441), and two ends of the roller (444) are respectively fixedly connected to the top and the bottom of the buffer groove (443).

6. A water purifier for facilitating replacement of a filter cartridge as recited in claim 1, wherein: the filter element cover is characterized in that a sealing block (71) is fixedly connected to the bottom of the filter element cover (7), an annular groove (72) is formed in the outer wall of the sealing block (71), a sealing ring (73) is fixedly connected to the inside of the annular groove (72), and a sealing gasket (74) is fixedly connected to the bottom of the sealing block (71).

7. A water purifier for facilitating replacement of a filter cartridge as recited in claim 1, wherein: the utility model discloses a filter cartridge, including casing (1), fixed block (5) are fixedly connected with to inboard bottom of casing (1), recess (51) are seted up at fixed block (5) top, spacing groove (52) are seted up to recess (51) inner wall, spacing groove (52) inside grafting has stopper (53), inside grafting of recess (51) has filter cartridge shell (6), stopper (53) fixed connection is at filter cartridge shell (6) outer wall.