Stainless steel sintered filter element fixed sealing structure
By designing fixed and reinforced components, the problem of easy damage to the sealing structure of the filter element under high flow rate and high pressure is solved, achieving a stable connection between the filter element and the mounting base and improving sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG RUICAI INTELLIGENT MFG TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-02
AI Technical Summary
Under high flow rate and high pressure conditions, the filter element is prone to displacement or shaking between itself and the mounting base, which can lead to damage to the sealing structure and a decrease in sealing performance.
The system employs fixed and reinforcing components, including side plates, rotating shafts, rotating rods, support blocks, and positioning clamps. The rotation of the rotating shaft and the elastic force of the springs ensure a firm fixation between the filter cartridge and the mounting base. Combined with the design of the sealing ring, the stability of the sealing structure is guaranteed.
It effectively reduces the risk of displacement or shaking between the filter element and the mounting base, maintains the good condition of the sealing structure, and improves sealing performance.
Smart Images

Figure CN224307928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration equipment technology, specifically to a fixed sealing structure for a stainless steel sintered filter element. Background Technology
[0002] Filtration equipment plays a vital role in many industrial production and daily life scenarios, and stainless steel sintered filter elements are widely used in filtration equipment due to their excellent filtration performance, good mechanical strength and outstanding corrosion resistance.
[0003] A search revealed CN222709130U, a stainless steel sintered filter element, comprising an installation cylinder and a filter element screen cylinder disposed inside the installation cylinder. The installation cylinder consists of a base, sliding rods, and a top collar from bottom to top. A ring is formed around the edge of the sliding rod between the base and the top collar. Each sliding rod is equipped with a cleaning component, which is controlled by an electric telescopic rod at the top of the top collar. The multiple cleaning components on the sliding rod have a circular cross-section, enclosing the outer cylinder of the filter element screen cylinder. In this invention, the arc-shaped cleaning blocks controlled by the electric telescopic rod allow for targeted cleaning of specific areas of the filter element screen cylinder. This eliminates the need to disassemble the entire device, effectively cleaning locally clogged areas and ensuring the continuity and stability of the filtration effect.
[0004] However, in the actual filtration process, the fluid often flows through the filter element at a high velocity and pressure, which generates a large impact force on the filter element. Under this continuous and complex fluid impact, the filter element and the mounting base are prone to displacement or shaking. Once the filter element is displaced or shaken, the sealing structure between the originally tightly fitted filter element and the mounting base will be damaged. The sealing components in the sealing structure may be deformed or misaligned, resulting in gaps between the sealing surfaces and a significant reduction in sealing performance. Utility Model Content
[0005] The purpose of this utility model is to provide a fixed sealing structure for stainless steel sintered filter elements, thereby solving the problems mentioned in the background section. To solve the above technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a fixed sealing structure for a stainless steel sintered filter element, comprising:
[0007] A filter element, comprising a filter cartridge, a support ring, and a fixing seat, wherein the support ring is fixed to the top and bottom of the filter cartridge, and the fixing seat is located at the upper and lower parts of the filter cartridge;
[0008] The fixing component includes a side plate, a rotating shaft, a rotating rod, a support block, and a positioning clamping ring. The side plate is fixed to the outer wall of the fixing seat, the rotating rod is disposed between the two side plates, the rotating shaft is rotatably connected to the outer surface of the rotating rod, the support block is fixed to the outer surface of the rotating rod, and the positioning clamping ring is fixed to the bottom of the support block and clamped to the outer surface of the support ring.
[0009] Furthermore, the fixing component also includes a base block, a plug rod, and a socket. The base block is located at the bottom of the positioning clamping ring, the socket is opened inside the base block, the plug rod is fixed to the bottom of the support ring, and the plug rod is inserted into and connected to the inside of the socket.
[0010] Furthermore, it also includes a reinforcing component, which includes an inner groove, a support rod, a spring, and a support frame. The inner groove is formed inside the positioning clamp, the support rod is fixed inside the inner groove, the spring is wound around the outer surface of the support rod, and the support frame is movably connected to the outside of the support rod.
[0011] Furthermore, the base block is fixed to the bottom of the support frame, and a limit plate is provided at the bottom of the support rod.
[0012] Furthermore, the top of the support ring is provided with an inner groove, and a sealing ring is bonded to the bottom of the fixing seat, with the sealing ring embedded in the inside of the inner groove.
[0013] Furthermore, a nut is threaded onto the outer surface of the insertion rod, and the nut is fastened to the bottom of the base block.
[0014] Furthermore, it also includes an anti-displacement component, which includes a positioning ring fixed to the top of the support ring and clamped to the outer surface of the fixing base.
[0015] Furthermore, the top of the positioning ring is provided with a snap-fit groove, and the outer surface of the fixing base is provided with a snap-fit block, which is inserted into the inside of the snap-fit groove.
[0016] This utility model has the following beneficial effects:
[0017] This invention, through its fixed and reinforcing components, allows the fixed seat to fit snugly against the support ring after the filter cartridge and fixed base are installed. The positioning clamp can rotate flexibly outside the rotating rod via a rotating shaft, thus firmly clamping it to the outside of the support ring. The spring is stretched, and the base block moves downward under its elastic force, allowing the insertion rod to be precisely aligned with the insertion hole. Subsequently, the spring rebounds, and the insertion rod is inserted into the insertion hole, thereby achieving a firm fixation between the fixed base and the support ring. This stable connection greatly reduces the risk of displacement or shaking between the filter cartridge and the mounting base. By ensuring a tight connection between the fixed base and the support ring, loosening of the sealing structure due to relative displacement between the two is avoided. In this way, the sealing structure can always maintain a good working condition, and the sealing performance is significantly improved. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall filter cartridge of this utility model;
[0020] Figure 2 This is a schematic diagram of the filter cartridge after the fixing base of this utility model has been disassembled;
[0021] Figure 3 This is a schematic diagram of the fixing base of this utility model;
[0022] Figure 4 This is a schematic diagram of the bottom of the fixing base of this utility model;
[0023] Figure 5 This is a schematic diagram of the positioning clamp of this utility model.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 100. Filter cartridge; 101. Support ring; 102. Fixing base;
[0026] 200. Side plate; 201. Rotating shaft; 202. Rotating rod; 203. Support block; 204. Positioning clamp; 205. Bottom block; 206. Insert rod; 207. Insertion hole;
[0027] 300. Inner groove; 301. Sealing ring; 302. Inner groove; 303. Support rod; 304. Spring; 305. Limiting plate; 306. Support frame; 307. Nut;
[0028] 400, Positioning ring; 401, Snap-fit groove; 402, Snap-fit block. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0031] Please see Figures 1-5 As shown, this utility model is a stainless steel sintered filter element fixing and sealing structure, comprising:
[0032] The filter component includes a filter cartridge 100, a support ring 101, and a fixing seat 102. The support ring 101 is fixed to the top and bottom of the filter cartridge 100, and the fixing seat 102 is located at the upper and lower parts of the filter cartridge 100.
[0033] The fixing component includes a side plate 200, a rotating shaft 201, a rotating rod 202, a support block 203, and a positioning clamping ring 204. The side plate 200 is fixed to the outer wall of the fixing base 102. The rotating rod 202 is disposed between the two side plates 200. The rotating shaft 201 is rotatably connected to the outer surface of the rotating rod 202. The support block 203 is fixed to the outer surface of the rotating rod 202. The positioning clamping ring 204 is fixed to the bottom of the support block 203 and clamped to the outer surface of the support ring 101.
[0034] After the filter cartridge 100 and the fixed base 102 are installed, the fixed base 102 will fit against the support ring 101, and the positioning clamping ring 204 can rotate flexibly outside the rotating rod 202 with the help of the rotating shaft 201, thereby being firmly clamped on the outside of the support ring 101.
[0035] The fixing component also includes a base block 205, a plug rod 206, and a socket 207. The base block 205 is located at the bottom of the positioning clamping ring 204, the socket 207 is opened inside the base block 205, the plug rod 206 is fixed to the bottom of the support ring 101, and the plug rod 206 is inserted into and connected to the inside of the socket 207.
[0036] When the positioning clamping ring 204 and the bottom block 205 are clamped at the bottom of the fixing ring, the insertion rod 206 is simultaneously inserted into the insertion hole 207 to position the positioning clamping ring 204.
[0037] It also includes a reinforcing component, which includes an inner groove 302, a support rod 303, a spring 304, and a support frame 306. The inner groove 302 is formed inside the positioning clamping ring 204, the support rod 303 is fixed inside the inner groove 302, the spring 304 is wound around the outer surface of the support rod 303, and the support frame 306 is movably connected to the outside of the support rod 303.
[0038] When the spring 304 is stretched, the base block 205 moves downward under its elastic force, so that the insertion rod 206 is precisely aligned with the insertion hole 207. Then, the spring 304 rebounds, and the insertion rod 206 is inserted into the insertion hole 207, thereby achieving a firm fixation between the fixing seat 102 and the support ring 101.
[0039] The bottom block 205 is fixed to the bottom of the support frame 306, and the bottom of the support rod 303 is provided with a limit plate 305;
[0040] The support frame 306 can move outside the support rod 303, and the auxiliary base block 205 can extend and spring back.
[0041] The top of the support ring 101 is provided with an inner groove 300, and the bottom of the fixing seat 102 is bonded with a sealing ring 301, which is embedded in the inner groove 300.
[0042] When the fixed base 102 is installed between the support ring 101, the sealing ring 301 is simultaneously embedded in the inner groove 300 to form a sealing effect.
[0043] The outer surface of the insertion rod 206 is threaded with a nut 307, which is fastened to the bottom of the base block 205;
[0044] After the insertion rod 206 is inserted into the insertion hole 207, the nut 307 is fixed to the outside of the insertion rod 206 to tighten it.
[0045] The working principle is as follows: First, the fixed base and the support ring 101 are installed together. At the same time, the sealing ring 301 is embedded in the inner groove 300 to form a sealing effect. After the filter cartridge 100 and the fixed base 102 are installed, the fixed base 102 will fit against the support ring 101. The positioning clamping ring 204 can rotate flexibly outside the rotating rod 202 with the help of the rotating shaft 201, and thus firmly clamps it on the outside of the support ring 101. The spring 304 is stretched, and the bottom block 205 moves downward under its elastic force, so that the insertion rod 206 is accurately aligned with the insertion hole 207. Then, the spring 304 rebounds, and the insertion rod 206 is inserted into the insertion hole 207, thereby realizing the firm fixation between the fixed base 102 and the support ring 101. The nut 307 is fastened to the outside of the insertion rod 206 to position the insertion rod 206. With its stable connection, the risk of displacement or shaking between the filter element and the mounting base is greatly reduced.
[0046] Please see Figures 1-3 As shown, this embodiment, based on the above embodiment, further includes:
[0047] An anti-displacement component, comprising a positioning ring 400, which is fixed to the top of the support ring 101 and clamped to the outer surface of the fixing base 102;
[0048] When the fixed base 102 is installed between the support ring 101, the positioning ring 400 will clamp the outside of the fixed base 102 to limit the fixed base 102.
[0049] The top of the positioning ring 400 is provided with a snap-fit groove 401, and the outer surface of the fixing base 102 is provided with a snap-fit block 402, which is inserted into and connected to the inside of the snap-fit groove 401.
[0050] The snap-fit block 402 is inserted into the snap-fit groove 401 to snap the position of the fixing seat 102, thus preventing the fixing seat 102 from shifting during installation with the support ring 101.
[0051] Working principle: When the installation of the fixed base 102 and the support ring 101 is started, the positioning ring 400 will surround and tightly clamp the outside of the fixed base 102, providing it with all-round limiting function. The positioning ring 400 effectively restricts the possibility of movement of the fixed base 102 in all directions, ensuring that it is always in the predetermined position and angle during the installation process. The snap-fit block 402 is inserted into the snap-fit groove 401, realizing the reliable snap-fit of the fixed base 102. This snap-fit method forms a rigid constraint, which improves the certainty of the installation position of the fixed base 102.
[0052] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A stainless steel sintered filter element fixing and sealing structure, characterized in that, include: The filter component includes a filter cartridge (100), a support ring (101), and a fixing seat (102). The support ring (101) is fixed to the top and bottom of the filter cartridge (100), and the fixing seat (102) is located at the upper and lower parts of the filter cartridge (100). The fixing component includes a side plate (200), a rotating shaft (201), a rotating rod (202), a support block (203), and a positioning clamping ring (204). The side plate (200) is fixed on the outer wall of the fixing seat (102). The rotating rod (202) is disposed between the two side plates (200). The rotating shaft (201) is rotatably connected to the outer surface of the rotating rod (202). The support block (203) is fixed to the outer surface of the rotating rod (202). The positioning clamping ring (204) is fixed to the bottom of the support block (203) and clamped to the outer surface of the support ring (101).
2. The stainless steel sintered filter element fixing and sealing structure according to claim 1, characterized in that: The fixing component also includes a base block (205), a rod (206), and a socket (207). The base block (205) is located at the bottom of the positioning clamping ring (204), the socket (207) is opened inside the base block (205), the rod (206) is fixed to the bottom of the support ring (101), and the rod (206) is inserted into and connected to the inside of the socket (207).
3. The stainless steel sintered filter element fixing and sealing structure according to claim 1, characterized in that: It also includes a reinforcing component, which includes an inner groove (302), a support rod (303), a spring (304), and a support frame (306). The inner groove (302) is opened inside the positioning clamp (204), the support rod (303) is fixed inside the inner groove (302), the spring (304) is wound around the outer surface of the support rod (303), and the support frame (306) is movably connected through the outside of the support rod (303).
4. The stainless steel sintered filter element fixing and sealing structure according to claim 2, characterized in that: The bottom block (205) is fixed to the bottom of the support frame (306), and a limit plate (305) is provided at the bottom of the support rod (303).
5. The stainless steel sintered filter element fixing and sealing structure according to claim 4, characterized in that: The top of the support ring (101) is provided with an inner groove (300), and the bottom of the fixing seat (102) is bonded with a sealing ring (301), which is embedded in the inside of the inner groove (300).
6. The stainless steel sintered filter element fixing and sealing structure according to claim 2, characterized in that: The outer surface of the insertion rod (206) is threaded with a nut (307), which is fastened to the bottom of the base block (205).
7. The stainless steel sintered filter element fixing and sealing structure according to claim 1, characterized in that: It also includes an anti-displacement component, which includes a positioning ring (400) fixed to the top of the support ring (101) and clamped to the outer surface of the fixing seat (102).
8. The stainless steel sintered filter element fixing and sealing structure according to claim 7, characterized in that: The top of the positioning ring (400) is provided with a snap-fit groove (401), and the outer surface of the fixing base (102) is provided with a snap-fit block (402), which is inserted into the inside of the snap-fit groove (401).