CN210206019U - Finda beck filter cylinder structure - Google Patents

Abstract

The utility model relates to a fendar beck filter tube structure. The device comprises a lower barrel, an upper end enclosure and a middle short-circuit sleeve which is connected between the lower barrel and the upper end enclosure in a sealing way, wherein the lower barrel and the middle short-circuit sleeve are connected in a sealing way through a flange plate, and the middle short-circuit sleeve and the upper end enclosure are connected in a sealing way through the flange plate; a plurality of insert tubes are arranged on the outer side of the middle short-circuit sleeve, and the outer ends of the insert tubes are connected with the central piping system through flange plates; the telescopic inside of middle part short circuit violently is equipped with many collector tubes, and the one end of each collector tube corresponds to seal through the union between the insert tube, and the collector tube other end is equipped with the cylinder, has laid a plurality of hangers, bracing piece group and spacing subassembly on the telescopic inside wall of middle part short circuit. The utility model discloses can avoid leading to whole barrel to scrap the problem that needs the change because of the barrel of subregion corrodes, this tube structure easy dismounting moreover, little to the production influence.

Description

Finda beck filter cylinder structure

Technical Field

The utility model relates to an equipment barrel field is a fendar beck filter tube structure very much.

Background

The fendabek filter is a novel high-precision tubular filter, and is used for solid-liquid separation in the production process. In the chemical fiber industry, the cylinder of the Fendabeke filter is carbon steel inner-layer high-temperature-resistant rubber. After long-term use, the rubber lining damage is easy to occur at the position of the filter tube fixing hangers in the filter, and the cylinder body is leaked and cannot be used due to the corrosion of the carbon steel cylinder body by the acidic high-temperature liquid. After corrosion leakage occurs, the whole barrel can only be scrapped, and the replacement of the new barrel can only be carried out by removing nearby pipelines and breaking walls. The difficulty of barrel replacement construction operation is high, and the time for production line is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: overcome above shortcoming and provide a fragrant dabeck filter tube structure, this tube structure is equipped with the problem that the middle part short circuit sleeve can avoid leading to whole barrel to scrap the needs of changing because of the barrel of subregion corrodes, for manufacturing enterprise practices thrift cost of maintenance and improve equipment maintenance efficiency, reduces the influence of trouble to production line, this tube structure easy dismounting moreover, it is little to the production influence.

The utility model discloses a following technical scheme realizes: a fendabock filter cartridge structure which characterized in that: the device comprises a vertically arranged lower barrel, an upper end enclosure arranged above the lower barrel, and a middle short-circuit sleeve hermetically connected between the lower barrel and the upper end enclosure, wherein the lower barrel and the middle short-circuit sleeve are hermetically connected through a flange plate, and the middle short-circuit sleeve and the upper end enclosure are hermetically connected through a flange plate;

the outer side wall of the middle short-circuit sleeve is provided with a plurality of insertion pipes which extend along the transverse direction and are arranged at intervals, the axes of the insertion pipes are all positioned at the same height position, the inner ends of the insertion pipes extend inwards to extend into the cavity of the middle short-circuit sleeve, and the outer ends of the insertion pipes are exposed out of the middle short-circuit sleeve and are connected with the central pipe system in a sealing way through a flange plate; a plurality of liquid collecting pipes with the number identical to that of the inserting pipes are transversely arranged in the cavity of the middle short-circuit sleeve, one end of each liquid collecting pipe is opened and is in sealed conduction connection with the corresponding inserting pipe through a movable joint, the other end, far away from the inserting pipe, of each liquid collecting pipe is closed, a cylindrical part extending along the axis direction is arranged at the end part of each liquid collecting pipe, a plurality of hanging lugs used for supporting the cylindrical parts are distributed on the inner side wall of the middle short-circuit sleeve, each hanging lug is provided with a U-shaped groove with an upward opening, and the cylindrical parts are erected in the U-shaped grooves; the bottom of the tube wall of each liquid collecting tube is provided with a plurality of pore channels which are respectively and correspondingly connected with a plurality of pipelines vertically arranged in the lower cylinder body;

still be equipped with more than two sets ofly along longitudinal extension and lie in the bracing piece group that is used for supporting the collector tube of each collector tube below and more than two sets ofly lie in each collector tube top and with telescopic inside wall detachable connections's of middle part short circuit spacing subassembly that is used for restricting the collector tube upward movement of middle part short circuit on the telescopic inside wall of middle part short circuit.

The working principle and the process are as follows: the middle short-circuit sleeve is arranged in the barrel structure, all the hangers are distributed on the inner side wall of the middle short-circuit sleeve, and the middle short-circuit sleeve can be independently replaced if the hanger rubber lining is bulged, damaged, dropped, corroded and the like, so that the problem that the whole barrel is scrapped and needs to be replaced due to barrel corrosion in a small area can be solved; be flange joint between middle part short circuit sleeve and the upper portion head, can lift the upper portion head off, be connected through the union of quick detach between collector tube and the inserted tube, spacing subassembly is also the structural design of quick detach, it is convenient to dismantle, open union and spacing subassembly, can together upwards hang out the collector tube rather than the pipeline of lower part through instruments such as crane, dismantle the flange joint between inserted tube and the central authorities piping and dismantle the flange joint between middle part short circuit sleeve and the lower part barrel and can change middle part short circuit sleeve, the change process is convenient quick and to production influence minimum, it can greatly practice thrift cost of maintenance to remain the lower part barrel simultaneously.

In order to realize the quick disassembly and assembly of the movable joint, the movable joint comprises a liquid collecting pipe joint, an insert pipe joint, a movable joint nut and an annular sealing device, wherein the liquid collecting pipe joint is in threaded sleeve joint with the periphery of the end part of one end of the liquid collecting pipe, which is used for being connected with the insert pipe, of the end part of the insert pipe; the movable joint is characterized in that the caliber of one axial end of the movable joint nut is larger than the caliber of the other axial end, the inner wall of the large-caliber end is in threaded connection with the outer thread of the outer peripheral wall of the liquid collecting pipe joint through an inner thread, the inner wall of the small-caliber end is movably sleeved outside the outer peripheral wall of the inserting pipe joint, the end part of the inserting pipe joint is provided with an outer flange located between the small-caliber end of the movable joint nut and the liquid collecting pipe joint, and the outer diameter of the.

In order to realize the quick assembly and disassembly of the limiting assembly, the limiting assembly comprises a cantilever rod piece I and a cantilever rod piece II which are fixedly arranged on the inner side walls of the two sides of the middle short-circuit sleeve in the longitudinal direction, and a connecting rod piece connected between the cantilever rod piece I and the cantilever rod piece II; one end of the connecting rod piece is hinged with the end part of the free end of the cantilever rod piece I, and the other end of the connecting rod piece is connected with the end part of the free end of the cantilever rod piece II through a quick opening and closing connecting device;

the end part of the connecting rod piece close to the cantilever rod piece II is provided with a stepped hole extending horizontally, the position of the cantilever rod piece II corresponding to the stepped hole is provided with a through hole extending horizontally, and the small-aperture end of the stepped hole is close to the through hole;

the quick opening and closing connecting device comprises a sealing plate fixedly arranged at the opening of the large-aperture end of the stepped hole, a T-shaped part which is connected in the stepped hole in a sliding mode, the large-end of the T-shaped part is positioned in the large-aperture end of the stepped hole, and a first spring part which is pressed between the T-shaped part and the sealing plate and used for pushing the rod end of the T-shaped part to extend out of the stepped hole and partially expose outside, the end face of the rod end of the T-shaped part is a spherical crown face, and a slope which is used for facilitating the rod end of the T-shaped part to slide into the through hole when the connecting rod piece swings downwards;

the quick opening and closing connecting device further comprises an outer limiting ring fixedly arranged at an opening of one side of the through hole, which is far away from the stepped hole, an inner limiting ring fixedly arranged in the through hole, a push rod which simultaneously penetrates through inner holes of the outer limiting ring and the inner limiting ring and can slide between the outer limiting ring and the inner limiting ring, and a spring part II sleeved on the push rod, wherein the axis of the push rod is coaxial with the axis of the through hole; when the outer end pressing part of the push rod is pressed, the inner end pushing part of the push rod can push the rod end of the T-shaped part to leave the through hole;

still be equipped with the seat pole that is located cantilever member one top on the telescopic inside wall of middle part short circuit, be equipped with between seat pole and the connecting rod piece and be used for drawing connecting rod piece spring part three that the articulated shaft upwards swings and reset.

The following may also be used: the limiting assembly comprises two cantilever rod pieces arranged on the inner side wall of the middle short-circuit sleeve and located at two ends in the longitudinal direction and a connecting rod piece fixedly connected between the two cantilever rod pieces through bolts.

In order to facilitate the assembly and disassembly of the connecting flanges between the inserting pipes and the central piping system, the positions of the flange connecting positions of the inserting pipes and the central piping system are staggered in the transverse direction.

1. The utility model discloses in be equipped with the union, the external screw thread threaded connection of internal thread and collecting pipe joint periphery wall is passed through to the heavy-calibre end inner wall of union nut among this union, to the direction rotating union nut that is close to the insert tube, can open insert tube and collecting pipe, only need during the installation with the union nut revolve on can, the dismouting between collecting pipe and the insert tube is convenient very, is difficult for producing the influence.

2. The utility model discloses in spacing subassembly be equipped with quick start-stop connecting device, when spacing subassembly needed to be closed, the manual connection member that presses down swung down around the articulated shaft, because be equipped with domatic on cantilever member two, can guide the rod end of T type spare to the shoulder hole retraction and slide into to the through-hole; when the limiting assembly needs to be opened, the exposed push rod is pressed, the rod end ejection through hole of the T-shaped piece can be ejected, the connecting rod piece is automatically reset around the upward swinging of the hinge shaft under the traction of the spring part III, the limiting assembly is opened and closed conveniently and quickly, and therefore the dismounting efficiency of the barrel is further improved.

3. The utility model discloses well insert tube is crisscross the setting with the position of the flange joint department of central piping, makes things convenient for flange's dismouting, is difficult for producing the rigidity collision.

4. The utility model discloses still have and to practice thrift cost of maintenance, characteristics such as facilitate promotion and application.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic structural view of a middle movable joint of the present invention;

fig. 4 is a schematic structural view of the middle limiting component of the present invention;

FIG. 5 is a partial enlarged view of B in FIG. 4;

fig. 6 is a schematic side view of the middle stop assembly of the present invention;

fig. 7 is a schematic three-dimensional structure diagram of the second cantilever member of the present invention.

Description of reference numerals: 1-lower cylinder body, 2-upper end socket, 3-middle short-circuit sleeve, 31-hanging lug, 311-U-shaped groove, 32-supporting rod group, 33-limiting component, 331-cantilever rod member I, 332-cantilever rod member II, 3321-through hole, 3322-slope surface, 333-connecting rod member, 3331-step hole, 334-quick opening and closing connecting device, 3341-sealing plate, 3342-T-shaped member, 3343-spring member I, 3344-outer limiting ring, 3345-inner limiting ring, 3346-push rod, 33461-limiting flange, 3347-spring member II, 3348-seat rod, 3349-spring member III, 4-insert tube, 5-central tube system, 6-liquid collecting tube, 61-cylindrical member, 7-movable joint, 71-liquid collecting tube joint, 72-male coupling, 73-union nut, 74-annular sealing means.

Detailed Description

The invention is explained in detail below with reference to the accompanying drawings:

as shown in fig. 1-7, a fendabock filter cartridge structure, characterized by: the device comprises a vertically arranged lower barrel 1, an upper end enclosure 2 arranged above the lower barrel 1 and a middle short-circuit sleeve 3 connected between the lower barrel 1 and the upper end enclosure 2 in a sealing manner, wherein the lower barrel 1 and the middle short-circuit sleeve 3 are connected in a sealing manner through a flange plate, and the middle short-circuit sleeve 3 and the upper end enclosure 2 are connected in a sealing manner through a flange plate;

the outer side wall of the middle short-circuit sleeve 3 is provided with a plurality of insertion tubes 4 which extend along the transverse direction and are arranged at intervals, the axes of the insertion tubes 4 are all positioned at the same height position, the inner end of each insertion tube 4 extends inwards to extend into the cavity of the middle short-circuit sleeve 3, and the outer end of each insertion tube 4 is exposed out of the middle short-circuit sleeve 3 and is connected with the central pipe system 5 in a sealing way through a flange; a plurality of liquid collecting pipes 6 with the number identical to that of the inserting pipes 4 are transversely arranged in the cavity of the middle short-circuit sleeve 3, one end of each liquid collecting pipe 6 is opened and is in sealed conduction connection with the corresponding inserting pipe 4 through a movable joint 7, the other end, far away from the inserting pipe 4, of each liquid collecting pipe 6 is closed, the end part of each liquid collecting pipe is provided with a cylindrical part 61 extending along the axis direction, a plurality of hanging lugs 31 used for supporting the cylindrical parts 61 are distributed on the inner side wall of the middle short-circuit sleeve 3, each hanging lug 31 is provided with a U-shaped groove 311 with an upward opening, and the cylindrical parts 61 are erected in the U-shaped grooves 311; the bottom of the pipe wall of each liquid collecting pipe 6 is provided with a plurality of pore channels which are respectively and correspondingly connected with a plurality of pipelines vertically arranged in the lower barrel 1;

still be equipped with more than two sets ofly along longitudinal extension and be located the bracing piece group 32 that is used for supporting collector tube 6 of each collector tube 6 below and more than two sets ofly be located each collector tube 6 top and with middle part short circuit sleeve 3's inside wall detachable connections's the spacing subassembly 33 that is used for restricting collector tube 6 upward movement on the inside wall of middle part short circuit sleeve 3.

As shown in fig. 3, in order to realize quick assembly and disassembly of the union, the union 7 comprises a header joint 71 which is screwed on the outer periphery of the end part of the header 6 for connecting with the insert pipe 4, an insert pipe joint 72 which is screwed on the outer periphery of the end part of the inner end of the insert pipe 4, a union nut 73 which is connected between the header joint 71 and the insert pipe joint 72, and an annular sealing device 74 which is arranged between the end surfaces of the header joint 71 and the insert pipe joint 72; the axial one end bore of union nut 73 is greater than axial other end bore, and the external screw thread threaded connection of internal thread and collector tube joint 71 periphery wall is passed through to heavy-calibre end inner wall, and small-bore end inner wall movable sleeve establishes outside inserting coupling 72 periphery wall, insert coupling 72 tip and be located union nut 73 small-bore end and collector tube joint 71 between the outward flange, and the external diameter of outward flange is greater than union nut 73 small-bore end internal diameter. The annular sealing device 74 may be an annular sealing ring.

As shown in fig. 4-7, in order to realize quick assembly and disassembly of the limiting assembly, the limiting assembly 33 includes a first cantilever bar member 331 and a second cantilever bar member 332 fixedly disposed on the inner side walls of the two sides of the middle short-circuit sleeve 3 in the longitudinal direction, and a connecting bar member 333 connected between the first cantilever bar member 331 and the second cantilever bar member 332; one end of the connecting rod piece 333 is hinged with the free end of the first cantilever rod piece 331, and the other end of the connecting rod piece is connected with the free end of the second cantilever rod piece 332 through a quick opening and closing connecting device 334;

the connecting rod 333 is provided with a step hole 3331 extending horizontally and transversely at the end part close to the second cantilever rod 332, the second cantilever rod 332 is provided with a through hole 3321 extending horizontally and transversely at the position corresponding to the step hole 3331, and the small-aperture end of the step hole 3331 is close to the through hole 3321;

the quick opening and closing connecting device 334 comprises a sealing plate 3341 fixedly arranged at the large-aperture end opening of the stepped hole 3331, a T-shaped part 3342 which is slidably connected in the stepped hole 3331 and the large-aperture end of which is positioned in the large-aperture end of the stepped hole 3331, and a first spring part 3343 which is pressed between the T-shaped part 3342 and the sealing plate 3341 and is used for pushing the rod end of the T-shaped part 3342 to extend out of the stepped hole 3331 and partially expose outside, the end surface of the rod end of the T-shaped part 3342 is a spherical crown surface, and a slope 3322 which is used for facilitating the rod end of the T-shaped part 3342 to slide into the through hole 3321 when the connecting rod part 333 swings downwards around a hinge shaft is arranged on the side wall of the cantilever;

the quick opening and closing connecting device 334 further comprises an outer limit ring 3344 fixedly arranged at an opening of the through hole 3321 far away from the side of the stepped hole 3331, an inner limit ring 3345 fixedly arranged in the through hole 3321, a push rod 3346 which simultaneously passes through inner holes of the outer limit ring 3344 and the inner limit ring 3345 and can slide between the outer limit ring 3344 and the inner limit ring 3345, and a second spring part 3347 sleeved on the push rod 3346, the axis of the push rod 3346 is coaxial with the axis of the through hole 3321, the push rod 3346 comprises an inner end pushing part which penetrates the inner limiting ring 3345 inwards and is used for pushing the rod end of the T-shaped part 3342 to retract, an outer end pressing part which penetrates the outer limiting ring 3344 outwards and is used for facilitating pressing, and a middle limiting part which is provided with a limiting flange 33461, the retaining flange 33461 is positioned between the outer retaining ring 3344 and the inner retaining ring 3345, the end surface of the pushing part at the inner end of the push rod 3346 is also a spherical crown surface, and the second spring piece 3347 is pressed between the inner limiting ring 3345 and the limiting flange 33461; when the outer end pressing part of the push rod 3346 is pressed, the inner end pressing part of the push rod 3346 can push the rod end of the T-shaped part 3342 to leave the through hole 3321;

and a seat rod 3348 positioned above the cantilever rod piece I331 is further arranged on the inner side wall of the middle short-circuit sleeve 3, and a spring piece III 3349 used for drawing the connecting rod piece 333 to swing upwards around a hinged shaft for resetting is arranged between the seat rod and the connecting rod piece 333.

The spacing assembly may also be as follows: the limiting assembly 33 comprises two cantilever rod pieces which are arranged on the inner side wall of the middle short-circuit sleeve 3 and located at two ends in the longitudinal direction and a connecting rod piece which is fixedly connected between the two cantilever rod pieces through bolts.

As shown in fig. 2, in order to facilitate the mounting and dismounting of the connection flange between the insertion pipe and the central pipe system, the positions of the flange connection positions of the insertion pipes 4 and the central pipe system 5 are staggered in the transverse direction.

While the present invention has been shown and described with reference to particular embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be limited, except as by the appended claims and their equivalents.

Claims (4)

1. A fendabock filter cartridge structure which characterized in that: the device comprises a vertically arranged lower barrel (1), an upper end enclosure (2) arranged above the lower barrel (1), and a middle short-circuit sleeve (3) hermetically connected between the lower barrel (1) and the upper end enclosure (2), wherein the lower barrel (1) and the middle short-circuit sleeve (3) are hermetically connected through a flange plate, and the middle short-circuit sleeve (3) and the upper end enclosure (2) are hermetically connected through a flange plate;

the outer side wall of the middle short-circuit sleeve (3) is provided with a plurality of inserting pipes (4) which extend transversely and are arranged at intervals, the axes of the inserting pipes (4) are all positioned at the same height position, the inner ends of the inserting pipes (4) extend inwards to extend into the cavity of the middle short-circuit sleeve (3), and the outer ends of the inserting pipes (4) are exposed out of the middle short-circuit sleeve (3) and are hermetically connected with the central pipe system (5) through flanges; the inner part of the cavity of the middle short-circuit sleeve (3) is transversely provided with a plurality of liquid collecting pipes (6) with the number identical to that of the inserting pipes (4), one end of each liquid collecting pipe (6) is opened and is in sealed conduction connection with the corresponding inserting pipe (4) through a movable joint (7), the other end, far away from the inserting pipe (4), of each liquid collecting pipe (6) is closed, the end part of each liquid collecting pipe is provided with a cylindrical piece (61) extending along the axis direction, a plurality of hanging lugs (31) used for supporting the cylindrical pieces (61) are arranged on the inner side wall of the middle short-circuit sleeve (3), each hanging lug (31) is provided with a U-shaped groove (311) with an upward opening, and the cylindrical pieces (61) are erected in the U-shaped grooves (311); the bottom of the pipe wall of each liquid collecting pipe (6) is provided with a plurality of pore channels which are respectively and correspondingly connected with a plurality of pipelines vertically arranged in the lower cylinder body (1);

more than two groups of supporting rod groups (32) which extend along the longitudinal direction and are positioned below the liquid collecting pipes (6) and are used for supporting the liquid collecting pipes (6) and more than two groups of limiting assemblies (33) which are positioned above the liquid collecting pipes (6) and are detachably connected with the inner side wall of the middle short-circuit sleeve (3) and are used for limiting the upward movement of the liquid collecting pipes (6) are further arranged on the inner side wall of the middle short-circuit sleeve (3).

2. A fendabock filter cartridge structure according to claim 1, wherein: the movable joint (7) comprises a liquid collecting pipe joint (71) which is sleeved on the periphery of the end part of one end of the liquid collecting pipe (6) used for being connected with the insert pipe (4) in a threaded manner, an insert pipe joint (72) which is sleeved on the periphery of the end part of the inner end of the insert pipe (4) in a threaded manner, a movable joint nut (73) connected between the liquid collecting pipe joint (71) and the insert pipe joint (72), and an annular sealing device (74) arranged between the end surfaces of the liquid collecting pipe joint (71) and the insert pipe joint (72); the axial one end bore of loose joint nut (73) is greater than axial other end bore, and the external screw thread threaded connection of internal thread and collecting pipe joint (71) periphery wall is passed through to heavy-calibre end inner wall, and small-bore end inner wall activity cover is established outside inserting coupling (72) periphery wall, inserting coupling (72) tip is equipped with the outward flange that is located between loose joint nut (73) small-bore end and collecting pipe joint (71), and the external diameter of outward flange is greater than loose joint nut (73) small-bore end internal diameter.

3. A fendabock filter cartridge structure according to claim 1, wherein: the limiting assembly (33) comprises a first cantilever rod piece (331) and a second cantilever rod piece (332) which are fixedly arranged on the inner side walls of the two sides of the middle short-circuit sleeve (3) in the longitudinal direction, and a connecting rod piece (333) connected between the first cantilever rod piece (331) and the second cantilever rod piece (332); one end of the connecting rod piece (333) is hinged with the free end of the cantilever rod piece I (331), and the other end of the connecting rod piece is connected with the free end of the cantilever rod piece II (332) through a quick opening and closing connecting device (334);

the end part of the connecting rod piece (333) close to the second cantilever rod piece (332) is provided with a stepped hole (3331) extending horizontally and transversely, the position of the second cantilever rod piece (332) corresponding to the stepped hole (3331) is provided with a through hole (3321) extending horizontally and transversely, and the small-aperture end of the stepped hole (3331) is close to the through hole (3321);

the quick opening and closing connecting device (334) comprises a sealing plate (3341) fixedly arranged at the large-aperture end opening of the stepped hole (3331), a T-shaped part (3342) which is connected in the stepped hole (3331) in a sliding mode, the large-aperture end of the T-shaped part is located in the large-aperture end of the stepped hole (3331), and a spring part I (3343) which is pressed between the T-shaped part (3342) and the sealing plate (3341) and used for pushing the rod end of the T-shaped part (3342) to extend out of the stepped hole (3331) and partially exposed outside, the end face of the rod end of the T-shaped part (3342) is a spherical crown face, and a slope surface (3322) which is used for facilitating the rod end of the T-shaped part (3342) to slide into the through hole (3321) when the connecting rod piece (333) swings downwards around a hinge shaft is arranged on the side;

the quick opening and closing connecting device (334) further comprises an outer limiting ring (3344) fixedly arranged at an opening on one side of the through hole (3321) far away from the stepped hole (3331), an inner limiting ring (3345) fixedly arranged in the through hole (3321), a second spring piece (3347) sleeved on the push rod (3346) and simultaneously penetrating through inner holes of the outer limiting ring (3344) and the inner limiting ring (3345) and capable of sliding at a position between the outer limiting ring (3344) and the inner limiting ring (3345), wherein the axis of the push rod (3346) is coaxial with the axis of the through hole (3321), the push rod (3346) comprises an inner end pushing part which penetrates through the inner limiting ring (3345) and is used for pushing the rod end of the T-shaped piece (3342) to retract, a pressing part which penetrates through the outer limiting ring (3344) outwards and is used for facilitating pressing, and a middle limiting part provided with a limiting flange (33461), and the limiting flange (33461) is positioned between the outer limiting ring (3344) and the inner limiting ring (3345), the end surface of the pushing part at the inner end of the push rod (3346) is also a spherical crown surface, and the second spring piece (3347) is pressed between the inner limiting ring (3345) and the limiting flange (33461); when the outer end pressing part of the push rod (3346) is pressed, the inner end pushing part of the push rod (3346) can push the rod end of the T-shaped piece (3342) to leave the through hole (3321);

and a seat rod (3348) positioned above the cantilever rod piece I (331) is further arranged on the inner side wall of the middle short-circuit sleeve (3), and a spring piece III (3349) used for drawing the connecting rod piece (333) to swing upwards around the hinged shaft for resetting is arranged between the seat rod (3348) and the connecting rod piece (333).

4. A fendabock filter cartridge structure according to claim 1, wherein: the positions of the flange joints of the inserting pipes (4) and the central pipe system (5) are staggered in the transverse direction.

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