Fixing assembly and membrane module system

Abstract

The utility model discloses a fixing assembly and a membrane module system, the fixing assembly comprises a fixing seat, a plug connector and a limiting structure, and the fixing seat is used for being installed on a membrane frame; the plug connector is movably connected to the fixing seat, and a mounting hole is formed between the plug connector and the fixing seat and used for fixing the membrane assembly; the limiting structure is arranged on at least one of the fixing base and the plug connector so as to prevent the plug connector from being separated from the fixing base. By utilizing the mounting holes, the fixing columns of the membrane module can be inserted into the mounting holes, so that the membrane module is fixed on the membrane frame. And through the limiting structure, the plug connector can be clamped on the fixing base, the plug connector is prevented from being separated from the fixing base, and therefore stable installation of the membrane assembly is achieved. In the use process of the membrane module, the surface of the membrane module is scoured by bubbles, the fixing module can improve the connection strength and stability of the membrane module on the membrane frame, the membrane module is prevented from shaking in the scouring process, and the installation stability and the use reliability of the membrane module are improved.

Description

Technical Field

[0001] This application relates to the technical field of membrane module assembly, and particularly to a fixing component and a membrane module system. Background Art

[0002] A membrane bioreactor (MBR, Membrane Bio-Reactor) is a new type of sewage treatment technology that organically combines ultrafiltration or microfiltration membrane separation technology with biological treatment technology, and is widely used in municipal and industrial sewage treatment and reuse. The MBR process has the characteristics of good effluent quality and saving floor area. By utilizing the efficient solid-liquid separation function of the membrane module, this technology enables the sludge retention time to be independent of the hydraulic retention time, thereby greatly increasing the operating sludge concentration and being beneficial to the efficient survival of strains with a long generation time, such as nitrifying bacteria, improving the biochemical reaction rate; at the same time, this process can greatly reduce the production of excess sludge, thus basically solving the prominent problems existing in traditional biological methods, such as large production of excess sludge, large floor area, and low operating efficiency.

[0003] A membrane bioreactor includes membrane modules, and multiple membrane modules need to be integrally arranged side by side and parallel in a specially designed membrane rack. To effectively control the membrane fouling rate, the existing conventional method is to continuously flush the membrane surface with high-intensity intermittent pulsed large bubbles. At the same time, this will generate a strong impact force on a single membrane module and the membrane rack. Therefore, how to quickly and stably fix multiple membrane modules on the membrane rack, and avoid the loosening of the membrane modules and the wear and damage of the connection parts between the membrane modules and the membrane rack, so that the membrane modules can operate stably for a long time, has become a pain point urgently to be solved in the industry. Summary of the Utility Model

[0004] To solve at least one of the above technical problems, this application provides a fixing component and a membrane module system, which can quickly install the membrane module on the membrane rack and effectively avoid wear or loosening between the membrane module and the membrane rack. The technical solutions adopted are as follows.

[0005] In a first aspect, the fixing component provided by this application includes a fixing base, a plug-in component, and a limiting structure. The fixing base is used to be installed on the membrane rack; the plug-in component is movably connected to the fixing base and forms an installation hole with the fixing base, and the installation hole is used to fix the membrane module; the limiting structure is arranged on at least one of the fixing base and the plug-in component to prevent the plug-in component from detaching from the fixing base.

[0006] In some embodiments of this application, at least one of the fixing base and the plug-in component is provided with an installation opening and a receiving groove communicating with the installation opening. One of the fixing base and the plug-in component is received in the installation opening to enclose the installation hole with the receiving groove, and the fixing column of the membrane module is fixed in the installation hole.

[0007] In certain embodiments of the present application, the fixing seat is provided with a first accommodating groove, and the fixing seat is formed with the installation opening connected to the first accommodating groove, and the plug-in component is provided with a second accommodating groove. When the plug-in component is connected to the fixing seat, a portion of the plug-in component is accommodated in the installation opening so that the first accommodating groove and the second accommodating groove are enclosed to form the installation hole.

[0008] In certain embodiments of the present application, the limiting structure includes a first inclined surface, which is arranged on the inner wall of the first accommodating groove. The first inclined surface is inclined toward the installation opening so that the installation opening gradually decreases along the direction away from the bottom of the first accommodating groove, and the size of the installation opening is smaller than the maximum width of the connector so that the connector is clamped in the installation opening.

[0009] In certain embodiments of the present application, the limiting structure further includes a second inclined surface, and the second inclined surface is arranged on the outer wall of the connector, and when the connector is connected to the fixing seat, the first inclined surface is matched and connected with the second inclined surface.

[0010] In some embodiments of the present application, two first inclined surfaces are disposed on the inner wall of the first accommodating groove, and the two first inclined surfaces are symmetrically disposed along the installation opening.

[0011] In some embodiments of the present application, the fixing seat is provided with a plurality of first accommodating grooves, and the plurality of first accommodating grooves are arranged at intervals along the length direction of the fixing seat.

[0012] In certain embodiments of the present application, the first receiving groove is further provided with an abutment portion, and when the connector is inserted into the first receiving groove, the end of the connector abuts against the abutment portion.

[0013] In certain embodiments of the present application, at least one of the first accommodating groove and the second accommodating groove is provided with an anti-rotation limiting portion, and the anti-rotation limiting portion is used to limit the rotation of the fixing column in the mounting hole.

[0014] In certain embodiments of the present application, the fixing assembly further includes a baffle, which is disposed on one side of the fixing seat along the axial direction of the mounting hole, and the baffle is used to block the axial movement of the connector along the mounting hole.

[0015] In certain embodiments of the present application, the baffle includes a first plate body and a second plate body connected to each other, the first plate body is arranged on one side of the fixing seat along the axial direction of the mounting hole, and the second plate body is arranged on the side of the connector away from the mounting hole along the radial direction of the mounting hole.

[0016] In some embodiments of the present application, when the plug-in member is connected to the fixed seat, the two end faces of the plug-in member along the axial direction of the mounting hole are flush with the two side surfaces of the fixed seat.

[0017] In a second aspect, the present application further provides a membrane module system, including a membrane frame, a membrane module, and the fixing component provided in the first aspect. The membrane frame includes a mounting beam, the fixed seat is disposed on the mounting beam, and the membrane module includes a fixing column, and the fixing column is inserted into the mounting hole.

[0018] The embodiments of the present application have at least the following beneficial effects: The interaction between the fixed seat and the plug-in member can form a mounting hole therebetween, and the fixing column of the membrane module can be inserted into the mounting hole, thereby fixing the membrane module on the membrane frame. During installation, the fixed seat can be fixedly connected to the membrane frame first, and then the fixing column of the membrane module is brought close to the fixed seat. By using the connection between the plug-in member and the fixed seat, the membrane module can be installed on the membrane frame. Through the limiting structure provided on at least one of the fixed seat or the plug-in member, the plug-in member can be clamped on the fixed seat to prevent the plug-in member from disengaging from the fixed seat, thereby realizing the stable installation of the membrane module. During the use of the membrane module, the membrane module will be subjected to the scouring effect of bubbles on its surface. By using the fixing component provided in the present application, the connection strength and stability of the membrane module on the membrane frame can be improved, avoiding the membrane module from shaking during the scouring process, and also avoiding relative movement between the membrane module and the membrane frame, which may cause wear or detachment of the membrane module, thereby improving the installation stability and use reliability of the membrane module. Description of the Drawings

[0019] The aspects and advantages described and / or appended in the embodiments of the present application will become obvious and easy to understand in conjunction with the following drawings. It should be noted that the embodiments shown in the following drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0020] Figure 1 It is a schematic structural diagram of the membrane module system provided by the embodiment of the present application;

[0021] Figure 2 It is a schematic structural diagram of the fixing component provided by the embodiment of the present application;

[0022] Figure 3 It is a schematic structural diagram of the fixed seat provided by the embodiment of the present application from one perspective;

[0023] Figure 4 It is a schematic structural diagram of the fixed seat provided by the embodiment of the present application from another perspective;

[0024] Figure 5 It is a schematic structural diagram of the plug-in member provided by the embodiment of the present application;

[0025] Figure 6 Schematic structural diagram of the fixing component provided by the embodiment of the present application when installed on the membrane frame;

[0026] Figure 7 is Figure 1 Partial enlarged view of area A of;

[0027] Figure 8 is Figure 1 Partial enlarged view of area B of.

[0028] Reference numerals:

[0029] 100, fixing component; 10, fixing base; 11, installation opening; 12, first accommodating groove; 121, abutting portion; 122, anti-rotation limiting portion of the first accommodating groove; 13, side opening; 14, reinforcing rib; 20, plug-in member; 21, installation hole; 22, second accommodating groove; 221, anti-rotation limiting portion of the second accommodating groove; 30, limiting structure; 31, first inclined surface; 32, second inclined surface; 40, baffle; 41, first plate body; 42, second plate body;

[0030] 200, membrane module system; 201, membrane frame; 2011, installation beam; 202, membrane component; 2021, membrane filaments; 2022, pouring box; 2023, fixing column; 2024, wing plate. Detailed implementation manners

[0031] The following combines Figures 1 to 8 to describe in detail the embodiments of the present application. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0032] In the description of the present application, it should be understood that if terms such as "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation of the present application. In addition, features defined with "first", "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] In a first aspect, please refer to Figure 1 , the present application provides a membrane module system 200. The membrane module system 200 includes a membrane rack 201 and a membrane module 202. The membrane module 202 is provided with filter membrane filaments 2021. A plurality of filter membrane filaments 2021 are arranged to form a membrane sheet and are used for filtering sewage. Both ends of the filter membrane filaments 2021 are respectively fixed in two casting boxes 2022. The end of the casting box 2022 is convexly provided with a fixing post 2023. The membrane module 202 is usually installed vertically, and the fixing post 2023 is used to connect with the membrane rack 201, so as to install the membrane module 202 on the membrane rack 201.

[0035] In the related art, the membrane module 202 and the membrane rack 201 are usually fixed by means of bolts, splint connections, etc. However, there are practical problems such as cumbersome operation or inflexible operation in this fixing method, and there are also problems such as unstable installation of the membrane module 202. Specifically, when using the membrane module 202, it is necessary to continuously wash the membrane surface with high-intensity intermittent pulsed air bubbles to achieve sewage filtration. This will generate a strong impact force on the single membrane module 202 and the membrane rack 201, resulting in relative displacement between the membrane module 202 and the membrane rack 201, causing wear and damage to the connection part between the membrane module 202 and the membrane rack 201, or problems such as loosening of the membrane module 202. Therefore, the present application proposes a fixing component 100. By using the fixing component 100 to fix the membrane module 202, the installation stability and use reliability of the membrane module 202 can be improved.

[0036] In some embodiments, the membrane rack 201 is set as a frame structure. The membrane rack 201 includes mounting beams 2011 extending along the longitudinal direction y and the transverse direction x. The fixing component 100 is arranged in the mounting beam 2011 at one end extending in the transverse direction x. The fixing component 100 can form a mounting hole 21. The fixing post 2023 of the membrane module 202 is inserted into the mounting hole 21. After installation, the casting box 2022 of the membrane module 202 extends along the longitudinal direction y. The membrane module system 200 can be provided with a plurality of membrane modules 202, and the plurality of membrane modules 202 are arranged at intervals along the transverse direction x. The other components and operations of the membrane module system 200 and the membrane module 202 are already recorded in the related art for those of ordinary skill in the art, and will not be described in detail here. The structure of the fixing component 100 will be introduced below.

[0037] In a second aspect, please refer to Figures 2 to 5 , the present application provides a fixing component 100, which includes a fixing base 10, a plug-in component 20, and a limiting structure 30. The fixing base 10 is used to be installed on the membrane rack 201; the plug-in component 20 is movably connected to the fixing base 10 and forms an installation hole 21 between the plug-in component 20 and the fixing base 10, and the installation hole 21 is used to fix the membrane module 202; the limiting structure 30 is arranged on at least one of the fixing base 10 and the plug-in component 20 to prevent the plug-in component 20 from detaching from the fixing base 10. By the mutual cooperation of the fixing base 10 and the plug-in component 20, the installation hole 21 can be formed between them, and the fixing column 2023 of the membrane module 202 can be inserted into the installation hole 21, so as to fix the membrane module 202 on the membrane rack 201. During installation, the fixing base 10 can be fixedly connected to the horizontally extending installation beam 2011 of the membrane rack 201 first, then the fixing column 2023 of the membrane module 202 is brought close to the fixing base 10, and finally, by the connection between the plug-in component 20 and the fixing base 10, the effect of installing the membrane module 202 on the membrane rack 201 is achieved. Through the limiting structure 30 arranged on at least one of the fixing base 10 or the plug-in component 20, the plug-in component 20 can be clamped on the fixing base 10 to prevent the plug-in component 20 from detaching from the fixing base 10, thereby realizing the stable installation of the membrane module 202. During the use of the membrane module 202, the membrane module 202 will experience the scouring effect of bubbles on its surface. By adopting the fixing component 100 provided by the present application, the connection strength and stability of the membrane module 202 on the membrane rack 201 can be improved, the membrane module 202 can be prevented from shaking during the scouring process, and the relative movement between the membrane module 202 and the membrane rack 201 can also be avoided, so as to prevent wear or the detachment of the membrane module 202, thereby improving the installation stability and use reliability of the membrane module 202.

[0038] Exemplarily, the fixing base 10 and the installation beam 2011 can be connected by bolts. For example, screw holes are provided on both the fixing base 10 and the installation beam 2011. After the screw holes on the fixing base 10 and the installation beam 2011 are aligned, bolts are used to sequentially pass through the screw holes along the y direction, so as to fix the fixing base 10 on the installation beam 2011.

[0039] Optionally, the fixing base 10 can be a block structure with a certain thickness, or can be set as a plate structure with a smaller thickness. When the fixing base 10 adopts a plate structure, its own weight can be reduced, thereby reducing the weight of the entire membrane group system 200. To ensure that the fixing base 10 has sufficient strength, a number of reinforcing ribs 14 can also be provided on the fixing base 10. The reinforcing ribs 14 can be arranged on the side of the fixing base 10 facing the casting box 2022 of the membrane module 202, so as to make the outer surface of the fixing base 10 facing the membrane rack 201 flat.

[0040] In some embodiments, at least one of the fixing base 10 and the plug-in member 20 is provided with an installation opening 11 and a receiving groove communicating with the installation opening 11. One of the fixing base 10 and the plug-in member 20 is received in the installation opening 11 to enclose an installation hole 21 with the receiving groove. The fixing column 2023 of the membrane module 202 is fixed in the installation hole 21. On the one hand, by providing the receiving groove, a good fit can be formed between the inner wall of the installation hole 21 and the outer wall of the fixing column 2023, increasing the contact area between the fixing column 2023 and the installation hole 21, thereby enhancing the connection strength between the membrane module 202 and the fixing assembly 100 and improving the stability of the membrane module 202 during use. On the other hand, by arranging a part of one of the fixing base 10 and the plug-in member 20 to be received in the installation opening 11, the connection strength between the fixing base 10 and the plug-in member 20 can also be increased, making the fixing assembly 100 have a more stable effect when fixing the membrane module 202.

[0041] Optionally, the receiving groove can be provided only in the fixing base 10 or only in the plug-in member 20, and the receiving groove and the plug-in member 20 or the fixing base 10 are used to enclose the installation hole 21. Of course, the receiving groove can also be provided in both the fixing base 10 and the plug-in member 20. When the plug-in member 20 is connected to the fixing base 10, the two receiving grooves enclose each other to form the installation hole 21. The shape of the installation hole 21 can be flexibly designed according to the specific shape of the fixing column 2023 of the membrane module 202, such as circular, rectangular, rectangular with rounded corners or special-shaped holes, etc., which are not limited herein. Hereinafter, the case where the receiving grooves are provided in both the fixing base 10 and the plug-in member 20 will be taken as an example for illustration.

[0042] In some embodiments, the fixing base 10 is provided with a first receiving groove 12, and the fixing base 10 is formed with an installation opening 11 communicating with the first receiving groove 12. The plug-in member 20 is provided with a second receiving groove 22. When the plug-in member 20 is connected to the fixing base 10, a part of the plug-in member 20 is received in the installation opening 11 so that the first receiving groove 12 and the second receiving groove 22 enclose each other to form the installation hole 21. In this way, by arranging the first receiving groove 12 and the second receiving groove 22 opposite to each other, an installation hole 21 that better fits the outer peripheral shape of the fixing column 2023 of the membrane module 202 can be formed, thereby improving the stability of the fixing column 2023 in the installation hole 21.

[0043] In some embodiments, the limiting structure 30 includes a first inclined surface 31 disposed on the inner wall of the first receiving groove 12. The first inclined surface 31 inclines towards the mounting opening 11, so that the mounting opening 11 gradually decreases in the direction away from the bottom of the first receiving groove 12, and the size of the mounting opening 11 is smaller than the maximum width of the plug-in member 20, so that the plug-in member 20 is clamped in the mounting opening 11. By providing the first inclined surface 31, the mounting opening 11 can present a tapered effect. When the plug-in member 20 is inserted into the mounting opening 11, the plug-in member 20 can be gradually clamped by the mounting opening 11, so as to realize the clamping function of the plug-in member 20 by using the first inclined surface 31. The farther the plug-in member 20 moves away from the fixing base 10, the stronger the clamping force of the first inclined surface 31 on the plug-in member 20, thus preventing the plug-in member 20 from coming out of the mounting opening 11 and ensuring that the plug-in member 20 and the fixing base 10 can cooperate with each other to fix the fixing column 2023 of the membrane module 202 in the mounting hole 21.

[0044] Please refer to Figure 2 and Figure 6 , since the size of the mounting opening 11 is smaller than the maximum width of the plug-in member 20, the plug-in member 20 cannot be directly inserted into the first receiving groove 12 from the mounting opening 11 (for example, along the Figure 2 z direction shown). Therefore, a side opening 13 is formed on the side surface of the fixing base 10 (i.e., the surface of the fixing base 10 facing the outside of the membrane frame 201) of the mounting hole 21. When installing the plug-in member 20, the plug-in member 20 can be inserted along the axial direction of the mounting hole 21 (such as the Figure 2 y direction shown) through the side opening 13, and then the plug-in member 20 is further completely pushed into the first receiving groove 12 along the axial direction of the mounting hole 21. During the process of pushing the plug-in member 20, tools such as a hammer can be used to tap the plug-in member 20 for assistance. Figure 2 shows the process of gradually inserting the plug-in member 20 into the fixing base 10. In the Figure 2 direction from right to left, the states of the fixing base 10 without the plug-in member 20, the plug-in member 20 aligned with the side opening 13, the plug-in member 20 partially inserted into the mounting opening 11, and the plug-in member 20 completely inserted into the mounting opening 11 are respectively shown. Figure 6The installation state where the fixing post 2023 of the membrane module 202 is inserted into the installation hole 21 is shown. Specifically, first, the fixing post 2023 is held in the first accommodating groove 12. Then, the side surface of the plug-in member 20 is aligned with the side opening 13, and the plug-in member 20 is pushed axially along the installation hole 21 by a certain distance so that the fixing post 2023 is completely located in the installation hole 21 formed by the enclosure of the plug-in member 20 and the fixing base 10. At this time, the preliminary fastening of the fixing post 2023 is completed. Since the plug-in member 20 is not completely pushed into the first accommodating groove 12, the mutual fastening force between the plug-in member 20 and the fixing base 10 is small. To ensure the stable installation of the fixing post 2023, it is necessary to further push the plug-in member 20 completely into the first accommodating groove 12 axially along the installation hole 21, and a tool can be used for assistance during this process. Exemplarily, the plug-in member 20 can be made of a rigid member. At this time, the plug-in member 20 can form a clearance fit with the fixing base 10. Of course, the plug-in member 20 can also be made of a flexible member with sufficient strength, and an interference fit is formed between the plug-in member 20 and the fixing base 10.

[0045] As another alternative implementation manner, when the limiting structure 30 does not use the inclined surface for limiting, the plug-in member 20 can also be fixed by means of a buckle, a clamping groove, etc., so as to prevent the plug-in member 20 from coming out. Hereinafter, the implementation manner in which the limiting structure 30 is set as the first inclined surface 31 will be taken as an example for description.

[0046] In some embodiments, the limiting structure 30 further includes a second inclined surface 32, and the second inclined surface 32 is arranged on the outer wall of the plug-in member 20. When the plug-in member 20 is connected to the fixing base 10, the first inclined surface 31 and the second inclined surface 32 are in mating connection. By providing the second inclined surface 32 and making the second inclined surface 32 cooperate with the first inclined surface 31, the contact area between the plug-in member 20 and the fixing base 10 can be further increased, thereby improving the connection stability between the two. It can be understood that the second inclined surface 32 and the first inclined surface 31 can be set in a state where the inclined directions and inclined angles are the same. In this way, when the plug-in member 20 is arranged in the first accommodating groove 12, the second inclined surface 32 can be completely attached to the first inclined surface 31, effectively preventing the plug-in member 20 from shaking relative to the fixing base 10.

[0047] As another alternative implementation manner, the outer wall of the plug-in member 20 can also be provided with a stepped reduction structure, and in this way, the plug-in member 20 can also be fixed in the installation opening 11 of the fixing base 10 by the clamping action between the first inclined surface 31 and the outer wall of the plug-in member 20.

[0048] In some embodiments, two first inclined surfaces 31 are provided on the inner wall of the first receiving groove 12, and the two first inclined surfaces 31 are symmetrically arranged along the mounting opening 11. In this way, the two symmetrically arranged first inclined surfaces 31 can provide clamping forces on the left and right sides of the connector 20, making the force on the connector 20 more uniform and improving the installation balance and stability of the connector 20.

[0049] In some embodiments, the fixing base 10 is provided with a plurality of first receiving grooves 12, and the plurality of first receiving grooves 12 are arranged at intervals along the length direction x of the fixing base 10. The fixing base 10 provided with the plurality of first receiving grooves 12 can simultaneously provide installation spaces for a plurality of membrane modules 202, so that a plurality of membrane modules 202 can be fixed simultaneously. The plurality of membrane modules 202 can be arranged in parallel and at intervals on the membrane rack 201. The filtration area is increased, thereby improving the efficiency of sewage treatment. At the same time, the fixing assembly 100 is correspondingly provided with a plurality of connectors 20, and each first receiving groove 12 uses one plug to fix the membrane module 202. In this way, the connectors 20 used between different membrane modules 202 are independent of each other. The damage or loss of any one connector 20 will not affect other connectors 20, and each connector 20 can also be replaced separately, thereby improving the reliability of the use of the membrane module system 200 and the convenience of maintenance.

[0050] In some embodiments, the first receiving groove 12 is further provided with an abutting portion 121. When the connector 20 is inserted into the first receiving groove 12, the end of the connector 20 abuts against the abutting portion 121. By using the abutting portion 121, the depth of insertion of the connector 20 into the first receiving groove 12 can be positioned and limited, so that after the connector 20 is connected to the fixing base 10, an installation hole 21 with a suitable size and shape can be formed to ensure that the installation hole 21 is suitable for installing the fixing column 2023 of the membrane module 202. Optionally, the abutting portion 121 protrudes on the two side walls of the first receiving groove 12, and the first inclined surface 31 extends from the mounting opening 11 to the abutting portion 121.

[0051] In some embodiments, at least one of the first receiving groove 12 and the second receiving groove 22 is provided with an anti-rotation limiting portion for limiting the rotation of the fixing column 2023 in the installation hole 21. By using the limiting effect of the anti-rotation limiting portion, the relative rotation between the fixing column 2023 and the installation hole 21 can be avoided, so as to ensure that the membrane module 202 can be arranged in a vertical state in the membrane rack 201 and can still maintain a vertical state even under the impact of water flow or bubbles, improving the stability of the membrane module 202 during use.

[0052] Exemplarily, the anti-rotation limit portion can be set as a protrusion or a strip-shaped protrusion extending axially along the mounting hole 21, so that the anti-rotation limit portion can abut against the outer surface of the fixed column 2023, thereby preventing the fixed column 2023 from rotating. Furthermore, a recessed portion, a clamping hole or a groove corresponding to the protrusion or the strip-shaped protrusion can be set on the outer periphery of the fixed column 2023, so that the anti-rotation limit portion can be mutually clamped with the recessed portion, the clamping hole or the groove, thereby further improving the limiting effect of the anti-rotation limit portion. It is understandable that the protrusion and the groove can also be set in reverse, that is, the protrusion or the strip-shaped protrusion is set on the outer peripheral surface of the fixed column 2023, and the recessed portion or the groove is set in the first accommodating groove 12 or the second accommodating groove 22. Optionally, the fixing seat 10 can be provided with an anti-rotation limit portion 122, and the connector 20 is also provided with an anti-rotation limit portion 221 (such as Figure 2 , 3 , 5), of course, the anti-rotation limit portion can also be set only in the first accommodating groove 12 or the second accommodating groove 22.

[0053] In some embodiments, see Figure 7 and Figure 8 The fixing assembly 100 further includes a baffle 40, which is arranged on one side of the fixing seat 10 along the axial direction of the mounting hole 21. The baffle 40 is used to block the axial movement of the plug-in component 20 along the mounting hole 21. Due to the tapered structural design of the mounting opening 11, the plug-in component 20 can be prevented from being disengaged from the mounting opening 11. When installing the plug-in component 20, the plug-in component 20 needs to be pushed into the side opening 13 of the fixing seat 10 along the axial direction of the mounting hole 21. Therefore, there is also a risk that the plug-in component 20 will be disengaged from the side opening 13. To this end, by providing the baffle 40, the baffle 40 forms a blocking effect on one side of the fixing seat 10, which can prevent the plug-in component 20 from being disengaged from the side opening 13 of the fixing seat 10, thereby improving the reliability of the fixing assembly 100 when in use.

[0054] In some embodiments, when the plug-in component 20 is connected to the fixing seat 10, the two end faces of the plug-in component 20 along the axial direction of the mounting hole 21 are flush with the two side surfaces of the fixing seat 10. In this way, the end faces of the plug-in component 20 do not protrude from the side of the fixing seat 10, which helps the baffle 40 to be installed evenly on the side of the fixing seat 10. Along the axial direction of the mounting hole 21, the thickness of the plug-in component 20 is roughly the same as the thickness of the fixing seat 10, which can avoid the problem of the plug-in component 20 shifting in the first receiving groove 12 when the thickness of the plug-in component 20 is less than the thickness of the fixing seat 10.

[0055] In some embodiments, the baffle 40 includes a first plate body 41 and a second plate body 42 connected to each other, the first plate body 41 is arranged on one side of the fixing seat 10 along the axial direction of the mounting hole 21, and the second plate body 42 is arranged on the side of the connector 20 away from the mounting hole 21 along the radial direction of the mounting hole 21. Figure 8The state where the baffle 40 is completely installed on the side of the fixed seat 10 is shown. By using the second plate body 42, the surface of the plug-in member 20 away from the mounting hole 21 can be protected. Even if the plug-in member 20 is damaged or lost, etc., the second plate body 42 can enclose the exposed fixing post 2023 to ensure that the fixing post 2023 can be held in the mounting hole 21.

[0056] Optionally, the baffle 40 can be fixed to the side of the fixed seat 10 by bolts. The first plate body 41 and the second plate body 42 can be integrally formed. The first plate body 41 and the second plate body 42 are arranged at 90°. When fixing the baffle 40, cover the first plate body 41 on the side of the fixed seat 10 and fix the first plate body 41 by bolts. At this time, the second plate body 42 can extend to the side of the plug-in member 20 away from the mounting hole 21, so as to realize the protective effect of the second plate body 42 on the plug-in member 20. In some examples, one end of the casting box 2022 of the membrane module 202 further protrudes with a wing plate 2024. The protruding direction of the wing plate 2024 is the same as the protruding direction of the fixing post 2023, and the wing plate 2024 and the fixing post 2023 are arranged at intervals. The wing plate 2024 is used for the operator to grip when disassembling or installing the membrane module 202 to avoid the operator touching the filter membrane filaments 2021. When installing the baffle 40, the side of the second plate body 42 of the baffle 40 away from the fixing post 2023 can also abut against the surface of the wing plate 2024, which can further improve the installation stability of the baffle 40.

[0057] In the description of this specification, if there are descriptions of reference terms such as "one embodiment", "some examples", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", it means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0058] The above has described the embodiments of the present application in detail with reference to the drawings, but the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the purpose of the present application.

[0059] In the description of the present application, if the patent name contains ",", it means the relationship of "and", rather than the relationship of "or". For example, if the patent name is "a kind of A, B", it means that the content claimed by the present application is: the technical solution with the theme name of A and the technical solution with the theme name of B.

Claims

1. A fixing component, characterized in that: include A fixing seat, used for mounting on a membrane frame; A plug-in connector, which can be movably connected to the fixing seat and forms a mounting hole between the plug-in connector and the fixing seat, and the mounting hole is used to fix the membrane assembly; A limiting structure is provided on at least one of the fixing seat and the plug-in component to prevent the plug-in component from being separated from the fixing seat.

2. The fixing component according to claim 1, wherein: At least one of the fixing seat and the plug-in component is provided with an installation opening and a receiving groove connected to the installation opening. One of the fixing seat and the plug-in component is received in the installation opening to enclose with the receiving groove to form the installation hole. The fixing column of the membrane assembly is fixed in the installation hole.

3. The fixing component according to claim 2, wherein: The fixing seat is provided with a first accommodating groove, and the fixing seat is formed with the installation opening connected to the first accommodating groove, and the plug-in component is provided with a second accommodating groove. When the plug-in component is connected to the fixing seat, a part of the plug-in component is accommodated in the installation opening so that the first accommodating groove and the second accommodating groove are enclosed to form the installation hole.

4. The fixing component according to claim 3, characterized in that: The limiting structure includes a first inclined surface, which is arranged on the inner wall of the first accommodating groove. The first inclined surface is inclined toward the installation opening so that the installation opening gradually decreases along the bottom direction away from the first accommodating groove, and the size of the installation opening is smaller than the maximum width of the connector so that the connector is clamped in the installation opening.

5. The fixing component according to claim 4, wherein: The limiting structure further includes a second inclined surface, which is arranged on the outer wall of the plug-in component. When the plug-in component is connected to the fixing seat, the first inclined surface is matched and connected with the second inclined surface.

6. The fixing component according to claim 4, wherein: The inner wall of the first accommodating groove is provided with two first inclined surfaces, and the two first inclined surfaces are symmetrically arranged along the installation opening.

7. The fixing component according to claim 3, wherein: The fixing seat is provided with a plurality of first accommodating grooves, and the plurality of first accommodating grooves are arranged at intervals along the length direction of the fixing seat.

8. The fixing component according to claim 3, wherein: The first accommodating groove is further provided with an abutting portion, and when the plug-in connector is plugged into the first accommodating groove, the end of the plug-in connector abuts against the abutting portion.

9. The fixing component according to any one of claims 3 to 8, characterized in that: At least one of the first accommodating groove and the second accommodating groove is provided with an anti-rotation limiting portion, and the anti-rotation limiting portion is used to limit the rotation of the fixing column in the mounting hole.

10. The fixing component according to any one of claims 1 to 8, characterized in that: The fixing assembly further comprises a baffle, which is arranged on one side of the fixing seat along the axial direction of the mounting hole, and is used to block the axial movement of the connector along the mounting hole.

11. The fixing component according to claim 10, wherein: The baffle includes a first plate body and a second plate body connected to each other. The first plate body is arranged on one side of the fixing seat along the axial direction of the mounting hole, and the second plate body is arranged on a side of the connector away from the mounting hole along the radial direction of the mounting hole.

12. The fixing component according to claim 10, characterized in that: When the plug connector is connected to the fixing seat, two end faces of the plug connector along the axial direction of the mounting hole are flush with two side surfaces of the fixing seat.

13. A membrane module system, characterized in that: It comprises a membrane frame, a membrane assembly and a fixing assembly as described in any one of claims 1 to 12, wherein the membrane frame comprises a mounting beam, the fixing seat is arranged on the mounting beam, the membrane assembly comprises a fixing column, and the fixing column is inserted into the mounting hole.

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