Shaping structure for filter element

Abstract

The invention relates to the technical field of filter element supporting structures, and discloses a shaping structure for a filter element, which comprises a bearing mechanism comprising a cylinder, a positioning assembly arranged on the outer side of the cylinder, and a connecting assembly arranged at the bottom of the cylinder. Mechanical stress and thermal deformation are absorbed in a self-adaptive mode through the elastic fixing assembly and a multi-stage spring buffering system, rigid connection failure of the end cover and the filter material is avoided, the wavy supporting framework is of a periodic fluctuating structure, the compressive strength is guaranteed, meanwhile, flow channel distribution is optimized, pressure loss is reduced, and the service life of the filter is prolonged. The automatic alignment design of the magnetic attraction block and the magnetic attraction piece ensures accurate resetting of the end cover after repeated disassembly and assembly, the interface stripping risk of a traditional gluing process is avoided, the rigid connection of the threaded base and the threaded head is matched with the fluid diversion function of the spiral rib, the end cover is reliably fixed, and high circulation efficiency is maintained; and the mechanical stability and the fluid performance are balanced, and the high-pressure and high-flow pump is suitable for harsh working conditions of high pressure, high flow and frequent maintenance.

Description

Technical Field

[0001] This invention relates to the technical field of filter element support structures, and more particularly to a fixed structure for filter cartridges. Background Technology

[0002] The fixed structure technology of filter cartridges originated from the needs of standardized industrial production. In the early days, in order to solve the problem of morphological collapse of nonwoven fibers or sintered materials under fluid pressure, the filter media was three-dimensionally fixed through physical skeleton or chemical cross-linking process.

[0003] During long-term use, the way the end caps are fixed to the filter media is prone to failure due to mechanical stress or thermal expansion and contraction. Traditional adhesive or hot-melt processes are prone to interface peeling under repeated pressure impacts, resulting in loose end caps or even filter media falling off, which seriously affects sealing and filtration effect. At the same time, some filter elements use a dense support frame to improve structural strength. Although this enhances pressure resistance, it greatly increases fluid resistance, leading to increased system pressure drop and decreased flow rate, which is particularly noticeable in applications requiring high flow rates. Summary of the Invention

[0004] In view of the problems existing in the conventional structure of filter cartridges, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a fixed structure for filter cartridges, which aims to reduce fluid resistance while ensuring the structural stability of the filter cartridge through elastic buffer positioning and optimized flow channel design, thereby solving the problems of loose end caps and high flow resistance in traditional filter cartridges.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including, The supporting mechanism includes a cylinder, a positioning component disposed on the outside of the cylinder, and a connecting component disposed at the bottom of the cylinder; The support mechanism includes a support shell, a support base fixedly installed on the outside of the support shell, and an elastic fixing component disposed in the inner cavity of the support base; And a filter mechanism disposed within the cavity of the bearing mechanism.

[0007] As a preferred embodiment of the fixed structure for the filter element of the present invention, the support mechanism further includes a semi-circular arc seat fixedly installed on the outside of the support base, and a magnetic suction piece fixedly installed in the inner cavity of the semi-circular arc seat.

[0008] As a preferred embodiment of the fixed structure for the filter element of the present invention, the elastic fixing component includes a sleeve that is movably engaged in the inner cavity of the support base, a patch that is fixedly installed on the outside of the sleeve, and a plate that is movably engaged in the outside of the sleeve.

[0009] As a preferred embodiment of the filter element shaping structure of the present invention, the elastic fixing assembly further includes a return spring fixedly installed in the inner cavity of the sleeve, a limiting slider fixedly installed at the end of the return spring, and a support spring fixedly installed on the outside of the limiting slider, wherein the outside of the return spring is fixedly connected to the outside of the clamping plate.

[0010] As a preferred embodiment of the fixed structure for the filter cartridge of the present invention, the filter mechanism includes a support top plate movably mounted in the inner cavity of the cylinder, a corrugated support frame fixedly installed at the bottom of the support top plate, and a filter cartridge movably mounted in the inner cavity of the corrugated support frame.

[0011] As a preferred embodiment of the filter element shaping structure of the present invention, the filter mechanism further includes a threaded seat fixedly installed at the center of the top of the support top plate, a threaded head threadedly installed in the inner cavity of the threaded seat, and a spiral rib fixedly installed in a ring shape at the bottom of the support top plate. The top of the threaded head is fixedly connected to the bottom of the support shell to achieve threaded fixation.

[0012] As a preferred embodiment of the shaped structure for the filter element of the present invention, the positioning component includes a ring sleeve fitted on the outside of the cylinder and a rotating shaft hinged to the outside of the ring sleeve.

[0013] As a preferred embodiment of the fixed structure for the filter element of the present invention, the positioning component further includes a rotating rod fixedly installed on the outside of the rotating shaft, a handle fixedly installed on the outside of the rotating rod, and a magnetic block fixedly installed on the end of the rotating rod. The magnetic block is movably engaged in the inner cavity of the semi-circular seat and is attracted to the magnetic sheet.

[0014] As a preferred embodiment of the fixed structure for the filter element of the present invention, the connecting assembly includes a fixed base fixedly installed at the bottom of the cylinder, a connecting pipe fixedly installed on one side of the fixed base, and a sealing flexible head fixedly installed on the outside of the connecting pipe.

[0015] As a preferred embodiment of the fixed structure for the filter element of the present invention, the connecting assembly further includes a tube head fixedly installed on the other side of the fixing seat, and a base plate fixedly installed at the bottom of the fixing seat.

[0016] The beneficial effects of this invention are as follows: the elastic fixing component adaptively absorbs mechanical stress and thermal deformation through a multi-level spring buffer system, avoiding failure of the rigid connection between the end cap and the filter media; the wave-shaped support frame adopts a periodic undulating structure, which optimizes the flow channel distribution and reduces pressure loss while ensuring compressive strength; the automatic alignment design of the magnetic block and magnetic sheet ensures accurate repositioning after repeated disassembly and assembly of the end cap, avoiding the risk of interface peeling in traditional adhesive processes; the rigid connection between the threaded seat and the threaded head, combined with the fluid guiding function of the spiral ribs, achieves both reliable fixing of the end cap and high flow efficiency, achieving a balance between mechanical stability and fluid performance, and is suitable for harsh working conditions with high pressure, high flow rate and frequent maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective.

[0019] Figure 3 This is a partial cross-sectional view of the elastic fixing component structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the disassembly of the positioning component structure of the present invention.

[0021] Figure 5 This is a partial cross-sectional view of the filter mechanism structure of the present invention.

[0022] Figure 6 This is a partial cross-sectional view of the filter mechanism structure of the present invention from another perspective.

[0023] In the picture: 100. Bearing mechanism; 110. Cylinder body; 120. Positioning assembly; 121. Ring; 122. Rotating shaft; 123. Rotating rod; 124. Handle; 125. Magnetic block; 130. Connecting assembly; 131. Fixing base; 132. Connecting pipe; 133. Sealing soft head; 134. Pipe head; 135. Base plate; 200. Support mechanism; 210. Support shell; 220. Support base; 230. Elastic fixing component; 231. Sleeve; 232. Patch; 233. Card plate; 234. Return spring; 235. Limiting slider; 236. Support spring; 240. Semi-circular arc base; 250. Magnetic suction piece; 300. Filter mechanism; 310. Support top plate; 320. Corrugated support frame; 330. Filter cartridge; 340. Threaded seat; 350. Threaded head; 360. Spiral ribs. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1 Reference Figures 1-6 This is the first embodiment of the present invention, which provides a shaped structure for a filter cartridge. This device includes, The supporting mechanism 100 includes a cylinder 110, a positioning component 120 disposed on the outside of the cylinder 110, and a connecting component 130 disposed at the bottom of the cylinder 110. The support mechanism 200 includes a support shell 210, a support seat 220 fixedly installed on the outside of the support shell 210, and an elastic fixing component 230 disposed in the inner cavity of the support seat 220. And a filter mechanism 300 disposed within the cavity of the support mechanism 100.

[0029] The modular installation and maintenance of the filter mechanism 300 are achieved through the separate design of the bearing mechanism 100 and the support mechanism 200. The cylinder 110 provides the main bearing function, the positioning component 120 ensures the positioning accuracy of the overall structure, and the connecting component 130 realizes the reliable connection with the external pipeline. This not only facilitates disassembly and cleaning, but also effectively adapts to the needs of different filtration scenarios, improving the service life and maintenance convenience of the filter element.

[0030] Specifically, the support mechanism 200 also includes a semi-circular arc seat 240 fixedly installed on the outside of the support seat 220, and a magnetic suction piece 250 fixedly installed in the inner cavity of the semi-circular arc seat 240.

[0031] The semi-circular base 240 provides a stable mounting reference surface for the positioning component 120, while the magnetic plate 250 realizes the contact-type automatic centering function with the magnetic block 125. This ensures the positioning accuracy of the positioning component 120 during installation and avoids wear problems caused by mechanical contact, making it suitable for filtration scenarios that require frequent disassembly and maintenance.

[0032] Furthermore, the elastic fixing component 230 includes a sleeve 231 movably locked in the inner cavity of the support base 220, a patch 232 fixedly installed on the outside of the sleeve 231, and a locking plate 233 movably locked on the outside of the sleeve 231. The elastic fixing component 230 also includes a return spring 234 fixedly installed in the inner cavity of the sleeve 231, a limiting slider 235 fixedly installed at the end of the return spring 234, and a support spring 236 fixedly installed on the outside of the limiting slider 235. The outside of the return spring 234 is fixedly connected to the outside of the locking plate 233.

[0033] Among them, the ferrule 231 provides the main positioning function, the patch 232 ensures the flatness of the contact surface, and the clamping plate 233 plays a limiting and guiding role. This elastic positioning structure can effectively absorb vibration and impact during the filtration process, prevent the filter material from being damaged by mechanical stress, and improve the filtration stability. The reset spring 234 provides the main reset force, the limit slider 235 ensures the accuracy of the movement trajectory, and the support spring 236 plays an auxiliary support role, so that the elastic fixing component 230 has an adaptive adjustment capability and can automatically adjust the positioning force according to the change of fluid pressure, which not only ensures the sealing performance but also avoids excessive mechanical stress.

[0034] Preferably, the positioning component 120 includes a ring 121 sleeved on the outside of the cylinder 110 and a rotating shaft 122 hinged to the outside of the ring 121. The positioning component 120 also includes a rotating rod 123 fixedly installed on the outside of the rotating shaft 122, a handle 124 fixedly installed on the outside of the rotating rod 123, and a magnetic block 125 fixedly installed at the end of the rotating rod 123. The magnetic block 125 is movably engaged in the inner cavity of the semi-circular seat 240 and is attracted to the magnetic plate 250.

[0035] The rotating positioning design using a ring 121 and a rotating shaft 122 enables the rotational positioning of the support mechanism 200. The ring 121 ensures axial positioning accuracy, while the rotating shaft 122 provides rotational freedom, allowing the support mechanism 200 to flexibly adjust its angle according to installation space requirements, thus improving the flexibility of equipment layout. Through the cooperation of the magnetic block 125 and the magnetic plate 250, the positioning component 120 and the support mechanism 200 can be quickly and accurately docked. The design of the rotating rod 123 and the handle 124 facilitates operation, and the magnetic positioning avoids mechanical wear, ensuring positioning accuracy, simplifying the operation process, and improving maintenance efficiency.

[0036] Furthermore, the connecting assembly 130 includes a fixed base 131 fixedly installed at the bottom of the cylinder 110, a connecting pipe 132 fixedly installed on one side of the fixed base 131, and a sealing flexible head 133 fixedly installed on the outside of the connecting pipe 132. The connecting assembly 130 also includes a pipe head 134 fixedly installed on the other side of the fixed base 131, and a base plate 135 fixedly installed at the bottom of the fixed base 131.

[0037] The combination design of the fixed base 131 and the connecting pipe 132 enables compatibility with multiple connection methods. The sealing soft head 133 ensures the sealing of the connection. This structural design can adapt to the connection requirements of different specifications of pipelines, greatly improving the versatility and applicability of the product, and forming a complete bottom connection system. The pipe head 134 provides another connection method option, while the base plate 135 enhances the overall structural strength.

[0038] In use, the filter mechanism 300 is first tightened and fixed to the threaded head 350 of the support mechanism 200 through the threaded seat 340 to form an integral module. Then, the angle of the rotating rod 123 is adjusted by the positioning component 120 of the bearing mechanism 100 so that the magnetic block 125 and the magnetic plate 250 of the support mechanism 200 are automatically attracted and aligned to complete the precise positioning. After the sealing soft head 133 of the connecting component 130 is connected to the external pipeline, the fluid enters the inner cavity of the cylinder 110, is evenly dispersed by the wave-shaped support frame 320 and filtered through the filter cartridge 330. The elastic fixing component 230 continuously absorbs vibration and impact. During maintenance, the support shell 210 can be quickly disassembled by rotating it in the opposite direction. The magnetic positioning structure ensures the consistency of repeated assembly and achieves efficient cleaning and replacement.

[0039] In summary, the cylinder 110 of the bearing mechanism 100 constitutes the main structure, and the positioning component 120 on its outer side includes a rotatable adjustable ring 121 and a rotating shaft 122. Together with the magnetic block 125 and the semi-circular seat 240 and magnetic plate 250 in the support mechanism 200, it forms a rapid positioning system to achieve wear-free and precise alignment. The bottom connecting assembly 130 provides diverse pipeline connection solutions through structures such as the fixed base 131, connecting pipe 132, and sealing soft head 133. The support mechanism 200 adopts an elastic fixing component 230 design. The ferrule 231, patch 232, and clamping plate 233 work together to form an adaptive buffer system under the combined action of the return spring 234, limit slider 235, and support spring 236, effectively absorbing vibration and impact during operation. The filter mechanism 300 improves filtration efficiency while ensuring structural strength through the optimized combination of the wave-shaped support frame 320 and the filter cartridge 330. The cooperation between the threaded seat 340 and the threaded head 350 ensures a reliable connection with the support mechanism 200.

[0040] Example 2 Reference Figure 1 , Figure 5 and Figure 6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that it provides a synergistic design of a wave-shaped support frame 320 and a spiral rib 360, which enhances the overall strength of the filter element while optimizing fluid distribution, thereby improving filtration efficiency and durability.

[0041] Furthermore, the filtration mechanism 300 includes a support top plate 310 movably mounted in the inner cavity of the cylinder 110, a corrugated support frame 320 fixedly installed at the bottom of the support top plate 310, and a filter cartridge 330 movably mounted in the inner cavity of the corrugated support frame 320.

[0042] The innovative design incorporates a wave-shaped support frame 320 and a filter cartridge 330. The top support plate 310 provides upper-end fixation, while the wave-shaped support frame 320 increases the filtration area while ensuring structural strength. The filter cartridge 330 ensures filtration accuracy, effectively resolving the contradiction between the strength and filtration efficiency of traditional filter elements, and improving filtration performance within the same volume.

[0043] Furthermore, the filter mechanism 300 also includes a threaded seat 340 fixedly installed at the center of the top of the support top plate 310, a threaded head 350 threadedly installed in the inner cavity of the threaded seat 340, and a spiral rib 360 fixedly installed in a ring shape at the bottom of the support top plate 310. The top of the threaded head 350 is fixedly connected to the bottom of the support shell 210 to achieve threaded fixation.

[0044] The precise fit between the threaded seat 340 and the threaded head 350 enables a reliable connection between the filter mechanism 300 and the support mechanism 200. The design of the spiral ribs 360 not only enhances the structural strength but also optimizes the flow channel distribution, ensuring both ease of installation and the ability to withstand high fluid pressure, making it particularly suitable for high-pressure filtration scenarios.

[0045] When in use, screw the threaded head 350 into the bottom of the support shell 210. The self-locking thread ensures a seal. The fluid is evenly dispersed through the wave gaps of the wave-shaped support frame 320. The spiral ribs 360 guide the fluid to form laminar flow, avoiding local blockage of the filter cartridge 330. The filter element can be quickly disassembled by rotating the support shell 210 in the opposite direction. The elastic deformation of the wave-shaped frame facilitates the removal and cleaning of the filter cartridge 330.

[0046] In summary, the composite structure design of the wave-shaped support frame 320 and the spiral ribs 360 achieves synergistic optimization in space utilization, mechanical strength and hydrodynamic performance, making it suitable for harsh working conditions with high flow rate and high pressure differential, and effectively extending the life of traditional filter elements.

[0047] Example 3 Reference Figures 1-6 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a method of use, including a shaping structure for a filter element, the method comprising the following steps: S1. First, place the cylinder 110 of the bearing mechanism 100 vertically in the installation position. Adjust the rotating rod 123 of the positioning component 120 so that the magnetic block 125 and the magnetic piece 250 in the semi-circular seat 240 of the support mechanism 200 are automatically attracted and positioned. At this time, the sealing soft head 133 of the connecting component 130 will be accurately aligned with the external pipeline, preparing for subsequent connection. S2. Rotate the support shell 210 clockwise to make the threaded head 350 and the threaded seat 340 of the filter mechanism 300 achieve threaded connection. When a clear click is heard, it indicates that the locking plate 233 of the elastic fixing component 230 has been locked into the positioning groove on the inner wall of the cylinder 110, and the system has completed self-locking. At this time, you can manually check whether each component is assembled in place. S3. After the filter medium enters the system from the pipe head 134 of the connecting component 130, it first passes through the corrugated channel of the corrugated support frame 320 to achieve preliminary diversion, and then passes through the filter cartridge 330 to complete fine filtration. Finally, the clean medium flows out from the center of the support top plate 310. S4. When the filter element needs to be replaced or cleaned, first rotate the support shell 210 counterclockwise to release the threaded connection, then gently press the handle 124 to separate the magnetic block 125 from the magnetic plate 250. After removing the filter mechanism 300, the filter cartridge 330 can be cleaned or replaced. When reinstalling, simply repeat the above steps.

[0048] In summary, the method provided in this embodiment is simple to operate and accurate in positioning. Through the synergistic effect of magnetic positioning and threaded locking, it not only ensures the reliability of assembly but also facilitates daily maintenance, greatly improving the efficiency and service life of the filtration system.

[0049] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A shaping structure for a filter cartridge, characterized by: The utility model relates to a bearing mechanism (100) including a cylinder (110), a positioning assembly (120) arranged outside the cylinder (110), and a connecting assembly (130) arranged at the bottom of the cylinder (110). The support mechanism (200) includes a support shell (210), a support seat (220) fixedly installed outside the support shell (210), and an elastic fixing assembly (230) arranged in the inner cavity of the support seat (220). The support mechanism (200) further includes a semicircular arc seat (240) fixedly installed outside the support seat (220), and a magnetic attraction piece (250) fixedly installed in the inner cavity of the semicircular arc seat (240). The elastic fixing assembly (230) includes a clamping sleeve (231) movably clamped in the inner cavity of the support seat (220), a patch (232) fixedly installed outside the clamping sleeve (231), and a clamping plate (233) movably clamped outside the clamping sleeve (231).

2. The shaping structure for a filter cartridge according to claim 1, characterized by: The elastic fixing assembly (230) further includes a return spring (234) fixedly installed in the inner cavity of the clamping sleeve (231), a limiting sliding block (235) fixedly installed at the end of the return spring (234), and a supporting spring (236) fixedly installed outside the limiting sliding block (235), and the outer side of the return spring (234) is fixedly connected with the outer side of the clamping plate (233).

3. The shaping structure for a filter cartridge according to claim 2, characterized by: The filter mechanism (300) includes a support top plate (310) movably clamped in the inner cavity of the cylinder (110), a wave-shaped support framework (320) fixedly installed at the bottom of the support top plate (310), and a filter cartridge (330) movably clamped in the inner cavity of the wave-shaped support framework (320).

4. The shaping structure for a filter cartridge according to claim 3, characterized by: The filter mechanism (300) further includes a threaded seat (340) fixedly installed at the top center of the support top plate (310), a threaded head (350) screwedly installed in the inner cavity of the threaded seat (340), and a spiral rib (360) fixedly installed in the form of a ring at the bottom of the support top plate (310), and the top of the threaded head (350) is fixedly connected with the bottom of the support shell (210) to realize threaded fixing.

5. The shaping structure for a filter cartridge according to claim 4, characterized by: The positioning assembly (120) includes a ring sleeve (121) sleeved outside the cylinder (110), and a rotating shaft (122) hingedly connected outside the ring sleeve (121).

6. The shaping structure for a filter cartridge according to claim 5, characterized by: The positioning assembly (120) further includes a rotating rod (123) fixedly installed outside the rotating shaft (122), a handle (124) fixedly installed outside the rotating rod (123), and a magnetic attraction block (125) fixedly installed at the end of the rotating rod (123), the magnetic attraction block (125) is movably clamped in the inner cavity of the semicircular arc seat (240), and is mutually attracted with the magnetic attraction piece (250).

7. The shaping structure for a filter cartridge according to claim 6, characterized by: ​ 8. The shaping structure for a filter cartridge according to claim 7, characterized by: ​ 9. The shaping structure for a filter cartridge according to claim 8, characterized by: The connecting assembly (130) comprises a fixing seat (131) fixedly installed at the bottom of the barrel (110), a connecting pipe (132) fixedly installed at one side of the fixing seat (131), and a sealing soft head (133) fixedly installed at the outer side of the connecting pipe (132).

10. The shaping structure for a filter cartridge according to claim 9, characterized by: The connecting assembly (130) further comprises a pipe head (134) fixedly installed at the other side of the fixing seat (131), and a bottom plate (135) fixedly installed at the bottom of the fixing seat (131).

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