CN218871602U - Improved filter cartridge bracket for dust remover - Google Patents

Abstract

The utility model provides an improved filter cylinder bracket for a dust remover, which comprises a fixed ring, a fixed bracket, a bearing bracket and an arc-shaped supporting plate; the installation mode that the fixing ring is sleeved on the filter cylinder installation seat is adopted, but the fixing ring is not a closed circular ring, and a notch is formed in the bottom of the fixing ring, so that elastic deformation is easy to occur and the fixing ring crosses over a hanging lug during installation, the fixing ring is easy to install quickly even if the diameter of the fixing ring is the same as that of the filter cylinder installation seat, and the fixing ring is attached to the installation seat after installation, so that shaking and swinging cannot occur; the fixed bolster is located the mount pad below, and its position can not obstruct to strain a section of thick bamboo and dismantle the maintenance, but its tail end perk makes the bearing support who links to each other rather than being raised, and the bearing support can be located just in time and strain the bottom of a section of thick bamboo, has dispelled the difference in height, strains and directly all the time around the section of thick bamboo dismantlement by the bearing support bearing, can not take place by a small margin "fall", and bearing stability and security all improve by a wide margin.

Description

Improved filter cylinder bracket for dust remover

Technical Field

The utility model relates to an environmental protection type air purification technical field especially relates to a modified dust remover is with straining a cartridge tray.

Background

Several or even dozens of filter cartridges are usually assembled on the filter cartridge type dust collector, a large amount of disassembly and replacement are required during maintenance, the work is heavy, and the electrostatic jumper assembly and disassembly of the electrostatic prevention filter cartridges are also required to be paid attention. When the filter cylinder is disassembled and assembled, the filter cylinder needs to be sleeved with a bag, so that the filter cylinder directly falls into the bag after being disassembled, and the situation that the four-way dust pollutes a clean workshop and damages the working environment is prevented. When the filter cartridge is required to be lifted all the time during maintenance, the filter cartridge is ensured to be always in the sleeve bag, the burden of workers is heavy, the maintenance efficiency is low, the filter cartridge of the dust remover is high in position, and the workers who lift the filter cartridge to assist in maintenance have certain dangers in operation.

The company has designed and produced a filter cartridge overhaul auxiliary bracket aiming at the use requirement of products, and the specific visible authorized bulletin number is CN216883852U, a filter cartridge overhaul auxiliary bracket for a dust remover. However, the support used at present needs to be fixed on the dust remover through the anti-dropping hook and the rotating shaft. In actual use, the rotating shaft and the hook are relatively complex in structure and high in cost during production, the support is thin, the heavy filter cartridge is supported, and the hook and the rotating shaft are prone to deformation or breakage. In addition, the existing bracket needs to be matched with small parts such as a bracket socket, a hook baffle and the like below the filter cartridge of the dust remover, and is relatively complex, and the raised parts can occasionally scratch the surface of the filter cartridge when the filter cartridge is detached after installation.

This company is improved a section of thick bamboo maintenance auxiliary bracket to above-mentioned problem, intends to adopt the direct cover of ring to establish the fixed mode of fixing on straining a section of thick bamboo mount pad, and present ring bracket structure is simple and crude, generally only has a ring and fixes the support on the ring, and the ring cover is established on the section of thick bamboo mount pad of dust remover, but has following problem: 1. because the mounting seat is also provided with the raised hanging lugs, the diameter of the circular ring must be larger than that of the mounting seat (with the hanging lugs) to ensure that the circular ring smoothly crosses the hanging lugs to be sleeved on the mounting seat, but the circular ring is easy to rotate and shake on the mounting seat under the condition of poor stability; 2. present bracket direct mount is on the ring, and ring diameter itself is greater than the mount pad diameter again, does not laminate with the mount pad, and consequently the bracket also with strain a section of thick bamboo and not laminate, there is the difference in height between bracket and the section of thick bamboo, strain a section of thick bamboo and can "fall" on the bracket after dismantling, and take place the dislocation between the mounting height originally, the ring also can aggravate under straining a section of thick bamboo gravity and rock, the bearing effect is not good and still has certain danger. The company therefore has developed ring and bracket designs that address the above-mentioned problems of manufacture, installation and use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing an improved filter cylinder bracket for a dust remover.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an improved filter cylinder bracket for a dust remover comprises a filter cylinder and a filter cylinder mounting seat, wherein the filter cylinder is mounted on the filter cylinder mounting seat, and a raised hanging lug extends outwards and vertically from the edge of the filter cylinder mounting seat; the filter cartridge bracket comprises a fixed ring, a fixed bracket, a bearing bracket and an arc-shaped supporting plate; the retainer plate includes arc ring and fixed plate, the arc ring is the ring structure of bottom breach, the arc ring cover establish install strain on the cylinder mount pad, the fixed plate is the breach both ends downwardly extending of arc ring and forms, the fixed bolster is installed between two fixed plates, the tail end of fixed bolster perk that makes progress, bearing leg joint is fixed on the tail end of fixed bolster perk, the arc layer board is installed on the bearing support, the bearing support with the equal bearing of arc layer board is in the bottom and the laminating of straining a section of thick bamboo strain the outline of straining a section of thick bamboo.

Preferably, the arc ring includes arc section, linkage segment to and arc section down, it is half-circular arc to go up the arc section, the linkage segment is two straight linkage segments, the arc section is the half-circular arc of bottom breach down, the linkage segment is located go up the arc section with carry out transitional coupling between the arc section down and at both ends, the bottom breach of arc section down is equipped with the fixed plate.

Preferably, one side edge of the upper arc section close to the filter cylinder extends outwards and vertically to form a limiting edge, the arc-shaped ring is sleeved on the filter cylinder mounting seat, and the limiting edge abuts against the inner side of the hanging lug.

Preferably, the fixed support comprises a transverse end rod, two straight rods and two inclined rods, the two ends of the transverse end rod are welded and fixed on the two fixed plates respectively, the two straight rods are welded and fixed at the two ends of the transverse end rod respectively, the two inclined rods are welded and connected with the two straight rods respectively, the two inclined rods are arranged obliquely upwards, and the tail ends of the two inclined rods are welded and connected with the bearing support.

Preferably, the support bracket comprises two support rods and a tail end rod, the two support rods are respectively connected with the tail ends of the two inclined rods of the fixed bracket in a welding mode, the support rods are parallel to the axis of the filter cartridge, and two ends of the tail end rod are respectively welded at the tail ends of the two support rods.

Preferably, two ends of the arc-shaped supporting plate are respectively welded on the two supporting rods.

Preferably, the fixed ring and the arc-shaped supporting plate are both made of arc-shaped steel.

Preferably, the fixing support and the bearing support are both round steel, and the diameter of the round steel is any one of 10mm, 12mm and 14 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the installation mode that the fixing ring is sleeved on the filter cylinder installation seat is adopted, but the bottom of the fixing ring is provided with the notch, the fixing ring is not a closed circular ring and is easy to elastically deform and cross over the hanging lugs during installation, so that the fixing ring is easy to quickly install even if the diameter of the fixing ring is the same as that of the filter cylinder installation seat, the fixing ring is attached to the installation seat after installation, shaking and swinging cannot occur, and the stability of bearing is improved;

2. the bottom notch of the fixing ring directly extends downwards to form a fixing plate and is welded with the fixing support, the fixing support plays a role in connection transition, the tail end of the fixing support tilts to enable the supporting support connected with the fixing support to be lifted, the supporting support can be just positioned at the bottom of the filter cylinder, the height difference is eliminated, the front part and the rear part of the filter cylinder are always directly supported by the supporting support, the filter cylinder cannot fall off due to the height difference, the supporting effect is better, and the filter cylinder is safer to overhaul and replace; the fixed bracket is arranged on the fixed plate, the whole height of the fixed bracket is lower than that of the filter cartridge, the filter cartridge is not obstructed in the position of the fixed bracket, and the fixed bracket is more convenient for the work of maintainers;

3. the utility model discloses a bracket structure as an organic whole, each part welds each other, does not have the spare part that needs install in addition, and the installation is simpler, and efficiency is higher, and the cost is lower, and reduces the cracked condition of bracket deformation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of an improved filter cartridge holder for a dust collector;

FIG. 2 is a schematic view of a filter cartridge mounting seat of the dust collector;

FIG. 3 is a schematic view of an improved filter cartridge bracket for a dust collector mounted to a filter cartridge mounting base;

FIG. 4 is a front dimensional drawing of an embodiment of an improved filter cartridge carrier for a dust collector;

FIG. 5 is a left side elevation sizing view of a mounting bracket and a support bracket of an embodiment;

figure 6 is a top plan view sizing diagram of a mounting bracket and a support bracket according to one embodiment.

Wherein, the fixing ring-1, the arc-shaped ring-11, the fixing plate-12, the upper arc section-111, the connecting section-112, the lower arc section-113 and the limiting edge-114; a fixed bracket-2, a transverse end rod-21, a straight rod-22 and an inclined rod-23; a supporting bracket-3, a supporting rod-31 and a tail end rod-32; an arc-shaped supporting plate-4; a filter cartridge mounting seat-5 and a hanging lug-51.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-6 in combination, an improved filter cartridge bracket for a dust collector is shown in fig. 1, 2 and 3, the dust collector includes a filter cartridge and a filter cartridge mounting base 5, the filter cartridge is mounted on the filter cartridge mounting base 5, and a raised hanging lug 51 extends perpendicularly outwards from an edge of the filter cartridge mounting base 5; the filter cartridge bracket comprises a fixed ring 1, a fixed bracket 2, a bearing bracket 3 and an arc-shaped supporting plate 4; retainer plate 1 includes arc ring 11 and fixed plate 12, arc ring 11 is the ring structure of bottom breach, 11 covers of arc ring are established and are installed on straining a cartridge mount pad 5, fixed plate 12 is that the breach both ends downwardly extending of arc ring 11 forms, fixed bolster 2 is installed between two fixed plates 12, the perk that makes progress of fixed bolster 2 tail end, bearing support 3 connects to be fixed on the tail end of 2 perks of fixed bolster, arc layer board 4 is installed on bearing support 3, bearing support 3 all bears the outline of straining a cartridge and laminating in the bottom of straining a cartridge with arc layer board 4.

The utility model discloses a strain a cartridge bracket when using, overlap the bag cover earlier and establish on straining a section of thick bamboo, overlap the outside of bag with retainer plate 1 from the tail end cover of straining a section of thick bamboo again, and remove along the axis direction of straining a section of thick bamboo, move the tip of straining a section of thick bamboo and straining a section of thick bamboo mount pad 5 and be connected always, retainer plate 1 touches when straining hangers 51 on a section of thick bamboo mount pad 5, the staff makes the bottom breach enlarge hard a little, retainer plate 1 warp the diameter short-term expansion a little, directly cross hangers 51 and cover and establish on a section of thick bamboo mount pad 5 of dust remover, the staff loose hand makes retainer plate 1 resume original shape this moment, the laminating of retainer plate 1 is on straining a section of thick bamboo mount pad 5. After the fixing ring 1 is sleeved, under the condition that the fixing ring is stretched towards two sides without external force to deform the fixing ring, the fixing ring moves back and forth along the axial direction of the filter cartridge and is blocked by the hanging lugs 51, so that the limiting effect is achieved. Because the utility model discloses a retainer plate is not closed ring, easily takes place elastic deformation during the installation and crosses the hangers, even consequently the diameter of retainer plate is the same with strain a section of thick bamboo mount pad diameter, also easily installs fast, and installation back retainer plate laminating mount pad can not take place to rock and sway, improves the stability of bearing.

After the filter cartridge bracket is installed, the fixing ring 1 is tightly attached to the filter cartridge mounting seat 5, the fixing support 2 is positioned below the filter cartridge mounting seat 5 and the filter cartridge, and the supporting support 3 is attached to the bottom of the filter cartridge and supports the filter cartridge. When the filter cartridge needs to be disassembled for overhaul or replacement, dust accumulated on the filter cartridge falls into the sleeve bag in the disassembling process, so that the environment of a cleaning workshop cannot be influenced; the filter cartridge is always supported by the bearing support 3 in the process of being detached, and after the filter cartridge is completely detached, the filter cartridge is not required to be horizontally moved to be away from the mounting seat due to the fact that the filter cartridge is not height-different from the bearing support 3, small-amplitude falling can not occur, force application of a maintainer is not needed to be placed, impact on the bearing support 3 due to small-amplitude falling can not be caused to cause deformation or breakage of the filter cartridge, and therefore the filter cartridge is better in stability and safety.

After the overhaul, because the utility model discloses eliminated the bearing support 3 and strained the difference in height between the section of thick bamboo, consequently equally need not the staff to mention and strain a section of thick bamboo, but directly with strain a section of thick bamboo translation on the bracket install again on straining a section of thick bamboo mount pad 5 can, then take off retainer plate 1 from straining a section of thick bamboo mount pad 5 again. If the filter cartridge is replaced, the old filter cartridge is firstly detached and then placed on the bracket, then the filter cartridge and the sleeve bag are detached together, a new filter cartridge is carried and placed on the bracket, is aligned and mounted on the filter cartridge mounting seat 5 under the supporting of the bracket, and special workers are not needed to support the filter cartridge during detachment and mounting, so that the safety of high-altitude operation is ensured.

The utility model discloses utilize retainer plate 1 to hang the mounting means on straining a cartridge mount pad 5, not only installation easy operation, the installation effectiveness is high, strains a section of thick bamboo moreover and dismantles and get off and temporarily place when straining a cartridge bracket on, owing to strain a gravity action of a section of thick bamboo self, can wholly push down the bracket to drive retainer plate 1 also downstream, and 1 covers of retainer plate establishes the fixed mode that hangs on straining a cartridge mount pad 5 and makes it install more firmly after being pushed down.

The bottom notch of the fixing ring directly extends downwards to form a fixing plate and is welded with the fixing support, the fixing support plays a role in connection transition, the tail end of the fixing support tilts to enable the bearing support connected with the fixing support to be lifted, the bearing support can be just positioned at the bottom of the filter cylinder, so that the height difference is eliminated, the filter cylinder is always directly supported by the bearing support before and after being detached, the falling of the filter cylinder due to the height difference is avoided, the supporting effect is better, and the filter cylinder is safer to overhaul and replace; the fixed bolster is installed on the fixed plate, and whole height is less than and strains a section of thick bamboo, and its position can not hinder and strain a section of thick bamboo and dismantle the maintenance, makes things convenient for the maintainer work more.

In addition, because the former bracket is connected with the dust remover in a plugging and hook anti-falling mode, a bracket plug, a hook and a rotating shaft are required to be arranged at the tail end of the bracket, and correspondingly, a bracket socket and a hook blocking piece are required to be arranged on the dust remover; due to the installation mode, the stress of the bracket is concentrated at the inserting position of the plug and the socket and the connecting position of the hook and the hook blocking piece, the stress point is small, the welding position of parts is short and is easy to deform and fall off, and therefore the risk that the filter cylinder slides or falls off exists. The utility model improves the structure of the bracket, abandons all the small parts, adopts the installation mode that the fixing ring 1 is sleeved and suspended, changes the stress area of the joint into the whole contact surface of the fixing ring 1 and the filter cylinder mounting seat 5, and has more dispersed stress and better bearing effect; and because no part exists, the efficiency of production and installation is higher, and the cost is lower. The dust remover does not need to be provided with parts such as a bracket socket, a hook baffle and the like, and the filter cartridge is not scratched or the filtering effect is not influenced when the filter cartridge is installed/disassembled.

In a preferred embodiment, as shown in fig. 1, the arc ring 11 includes an upper arc section 111, a connecting section 112, and a lower arc section 113, the upper arc section 111 is a semi-circular arc, the connecting section 112 is two straight connecting sections 112, the lower arc section 113 is a semi-circular arc with a bottom gap, the connecting section 112 is located between the upper arc section 111 and the lower arc section 113 and is transitionally connected at two ends, and the bottom gap of the lower arc section 113 is provided with a fixing plate 12. The arc ring 11 is not standard circular, but has welded the linkage segment 112 in the middle of two semicircles as the concatenation promptly, goes up arc 111 and arc 113 all can laminate the outline of straining a section of mounting seat 5 down, and one section linkage segment 112 has been spliced to the centre for arc ring 11 overlaps on straining a section of mounting seat 5 and establishes the installation and take off all convenient more fast, overlaps to establish the higher degree of freedom occasionally on straining a section of mounting seat 5, hangs firmly can not drop simultaneously.

In a preferred embodiment, as shown in fig. 1, one side edge of the upper arc section 111 close to the filter cartridge extends vertically outward to form a limit edge 114, the arc ring 11 is sleeved on the filter cartridge mounting seat 5, and the limit edge 114 abuts against the inner side of the hanging lug 51. Because the arc-shaped ring 11 is sleeved and hung on the filter cylinder mounting seat 5, the upper arc section 111 can be tightly attached to the upper surface of the filter cylinder mounting seat 5 under the action of the self gravity of the filter cylinder during use, the limiting edge 114 is arranged on the outer side of the upper arc section 111, and when the fixing ring 1 moves back and forth on the filter cylinder mounting seat 5 along the green coaxial line direction, the limiting edge 114 can be abutted against the hanging lug 51, so that a better limiting effect is achieved.

In a preferred embodiment, as shown in fig. 1, the fixing bracket 2 includes a transverse end rod 21, two straight rods 22 and two inclined rods 23, two ends of the transverse end rod 21 are respectively welded and fixed on the two fixing plates 12, two straight rods 22 are respectively welded and fixed on two ends of the transverse end rod 21, two inclined rods 23 are respectively welded and connected with the two straight rods 22, the two inclined rods 23 are obliquely arranged upward, and the tail ends of the two inclined rods 23 are welded and connected with the supporting bracket 3. The fixing support 2 is simple in structure, mainly plays a role in connecting the fixing ring 1 and the bearing support 3, is located below the filter cartridge mounting seat 5, and cannot affect the dismounting and mounting of the filter cartridge. The straight rod 22 is welded to the end portion of the transverse rod 21, the side face of the straight rod 22 can be welded to the fixing plate 12 of the fixing ring 1, the transverse rod 21, the two straight rods 22 and the two inclined rods 23 can be made into an integrated structure, the whole structure is U-shaped, and the whole structure is only obliquely tilted at the positions of the two inclined rods 23 and connected with the bearing support 3, so that the bearing support 3 can be located at the bottom of the filter cartridge just and can support the filter cartridge.

In a preferred embodiment, as shown in fig. 1, the support frame 3 comprises two support rods 31 and a tail end rod 32, the two support rods 31 are respectively connected with the tail ends of the two inclined rods 23 of the fixed frame 2 by welding, the support rods 31 are parallel to the axis of the filter cartridge, and the two ends of the tail end rod 32 are respectively welded on the tail ends of the two support rods 31. Two supporting rods 31 and a tail end rod 32 of the supporting bracket 3 can be welded or in an integral structure, and the whole supporting bracket is in a U shape and just welded with the fixed bracket 2 to form a closed loop. Furthermore, the two ends of the arc-shaped supporting plate 4 are respectively welded on the two supporting rods 31. The two supporting rods 31 are mainly supported at two sides of the bottom of the filter cylinder along the extending direction of the axis of the filter cylinder, the arc-shaped supporting plate 4 is mainly supported at the bottom of the filter cylinder along the direction vertical to the axis of the filter cylinder, and the supporting rods 31 and the arc-shaped supporting plate 4 are matched with each other to achieve a firmer supporting effect; and the tail end rod 32 connects the two supporting rods 31, so that the bearing capacity of the tail end of the supporting bracket 3 is increased, and the situation that the filter cartridge slips due to the fact that the tail ends of the two supporting rods 31 are inclined downwards without support after the filter cartridge is placed on the supporting bracket is avoided.

In a preferred embodiment, the fixing ring 1 and the arc-shaped supporting plate 4 are both arc-shaped steel.

In a preferred embodiment, the fixing support 2 and the support 3 are both round bars with a diameter of any one of 10mm, 12mm and 14 mm.

The utility model discloses a bracket, the size of its retainer plate 1, fixed bolster 2 and bearing support 3, arc bracket all can be according to the size customization of straining a section of thick bamboo.

In one embodiment, as shown in fig. 4, 5 and 6, the radius of the upper arc section 111 and the lower arc section 113 of the fixing ring 1 may be 222.5mm, the length of the middle connection section 112 may be 30mm, and the width of the fixing ring 1 may be 64mm. Fixed bolster 2 and bearing support 3 welding form the closed loop, and its whole size can be: the length is 810mm, width 240mm, and the seamless steel pipe is selected for use to the material, and diameter 14mm, wherein the contained angle between the down tube 23 of fixed bolster 2 and straight-bar 22 and bearing support 3 is 45, and the horizontal plane projection length of down tube 23 is 79.6mm, and vertical plane projection length is 70mm. The present invention relates to a filter cartridge bracket, and more particularly, to a filter cartridge bracket for a filter cartridge, which includes a plurality of filter cartridges, each of which has a different size, and a bracket size corresponding to one of the filter cartridges.

In conclusion, the utility model has the advantages of simpler structure, higher installation efficiency, higher bearing capacity, firmer installation and lower production cost after the structure is improved,

the present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims (7)

1. An improved filter cylinder bracket for a dust remover comprises a filter cylinder and a filter cylinder mounting seat, wherein the filter cylinder is mounted on the filter cylinder mounting seat, and a raised hanging lug extends outwards and vertically from the edge of the filter cylinder mounting seat; the method is characterized in that: the filter cartridge bracket comprises a fixed ring, a fixed bracket, a bearing bracket and an arc-shaped supporting plate; the retainer plate includes arc ring and fixed plate, the arc ring is the ring structure of bottom breach, the arc ring cover is established and is installed strain on the cartridge mount pad, the fixed plate is the breach both ends downwardly extending of arc ring and forms, the fixed bolster is installed between two fixed plates, the perk that makes progress of the tail end of fixed bolster, the bearing support connection is fixed on the tail end of fixed bolster perk, the arc layer board is installed on the bearing support, the bearing support with the arc layer board all bears and is in the bottom and the laminating of straining a section of thick bamboo the outline of straining a section of thick bamboo.

2. The improved filter cartridge holder for dusters of claim 1, wherein: the arc ring comprises an upper arc section, a connecting section and a lower arc section, the upper arc section is in a semi-circular arc shape, the connecting section is two straight connecting sections, the lower arc section is in a semi-circular arc shape with a bottom gap, the connecting section is located between the upper arc section and the lower arc section and is in transitional connection at two ends, and the bottom gap of the lower arc section is provided with the fixing plate.

3. The improved filter cartridge holder for dusters of claim 2, wherein: the edge of one side of the upper arc section, which is close to the filter cylinder, extends outwards and vertically to form a limiting edge, the arc-shaped ring is sleeved on the filter cylinder mounting seat, and the limiting edge is abutted against the inner side of the hanging lug.

4. The improved filter cartridge holder for dusters of claim 1, wherein: the fixed support comprises a transverse end rod, a straight rod and two inclined rods, the two ends of the transverse end rod are respectively welded and fixed on the two fixed plates, the number of the straight rods is two, the two straight rods are respectively welded and fixed at the two ends of the transverse end rod, the number of the inclined rods is two, the two inclined rods are respectively welded and connected with the two straight rods, the two inclined rods are obliquely and upwards arranged, and the tail ends of the two inclined rods are welded and connected with the bearing support.

5. The improved filter cartridge holder for dusters of claim 4, wherein: the supporting support comprises two supporting rods and a tail end rod, the two supporting rods are respectively connected with the tail ends of the two inclined rods of the fixing support in a welding mode, the supporting rods are parallel to the axis of the filter cylinder, and the two ends of the tail end rod are respectively welded to the tail ends of the two supporting rods.

6. The improved filter cartridge holder for dusters of claim 5, wherein: and two ends of the arc-shaped supporting plate are respectively welded on the two supporting rods.

7. The improved filter cartridge holder for dusters of claim 1, wherein: the retainer plate and the arc layer board are arc steel.

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