A water collection frame, levitation assembly, membrane assembly and mould

By using rotational molding to create the water collection frame and suspension component mold, the problems of complicated membrane module installation and floating were solved, achieving simplified manufacturing and stable suspension, and reducing maintenance costs.

CN117298864BActive Publication Date: 2026-08-04CITIC ENVIROTECH (GUANGZHOU) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CITIC ENVIROTECH (GUANGZHOU) CO LTD
Filing Date
2023-10-31
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing membrane bioreactors, membrane modules need to be integrated into specially designed membrane frames, which results in numerous accessories and complicated installation. Furthermore, membrane modules are prone to floating and uneven aeration, increasing daily maintenance costs.

Method used

A water collection frame mold and a suspension component mold are provided. The water collection frame and the suspension component are manufactured by rotational molding. The water collection frame has a fluid channel inside and can be detachably connected to the suspension component, which simplifies the membrane component structure and realizes the suspension setting.

Benefits of technology

It simplifies the manufacturing process of membrane modules, avoids corrosion problems, reduces installation complexity, and achieves stable suspension of membrane modules through suspension components, thereby reducing daily maintenance costs.

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Abstract

The application discloses a water collecting frame, a suspension assembly, a membrane assembly and a mold. The water collecting frame mold comprises a first cover plate and a second cover plate. The first cover plate and the second cover plate are mutually covered to form a first cavity. The first cavity is used for injecting a molding material to be roll molded into the water collecting frame. The roll molded water collecting frame has an internal hollow structure, which can form a fluid channel for collecting and transporting filtered water. Thus, the water collecting frame can not only provide a filtering water collection function for a purifying element, but also provide a supporting and fixing function for the purifying element, thereby simplifying the overall setting of the membrane assembly. The membrane assembly is manufactured by using the membrane assembly mold. On one hand, the manufacturing of the above-mentioned membrane assembly can be realized, and the manufacturing process is simplified. On the other hand, the membrane assembly formed by using the roll molding method can not only guarantee the connecting strength, but also avoid the rusting problem of the membrane assembly made of metal.
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Description

Technical Field

[0001] This application relates to the field of membrane module manufacturing technology, and in particular to a water collection frame, a suspension module, a membrane module, and a mold. Background Technology

[0002] Membrane bioreactors (MBRs) are a new type of wastewater treatment technology that organically combines ultrafiltration or microfiltration membrane separation processes with biological treatment processes. Depending on the process selection, they are widely used in municipal and industrial wastewater treatment and reuse in the form of aerobic membrane bioreactors and anaerobic membrane bioreactors.

[0003] In related technologies, membrane bioreactors include membrane modules, which need to be integrated into specially designed membrane frames. To meet overall strength requirements, the membrane frames are typically made of metal and require additional welding. The collection box for each individual membrane module also needs to be separately injection molded and assembled before being installed into the membrane frame using various parts. This results in numerous components and a cumbersome installation process.

[0004] Furthermore, the membrane modules in these technologies need to be fixed to the bottom of the reaction tank during use, which can lead to problems such as the membrane modules easily floating and uneven aeration, increasing the cost of daily maintenance. While a suspended installation method can help overcome these problems, the complex and bulky structure of the membrane modules makes it difficult to suspend them in the reaction tank. Summary of the Invention

[0005] To solve at least one of the above-mentioned technical problems, this application provides a water collection frame, a suspension component, a membrane component, and a mold. The water collection frames of the membrane component can be spliced ​​together to form the membrane component without the need for additional membrane frame or installation using spare parts, thereby simplifying the structure of the membrane component. The water collection frame can be detachably connected to the suspension component, which facilitates the use of the water collection frame in suspension. The technical solution adopted is as follows.

[0006] In a first aspect, this application provides a water collection frame mold for manufacturing a water collection frame. The water collection frame has a fluid channel inside. The water collection frame mold includes a first cover plate and a second cover plate. The first cover plate and the second cover plate cover each other to form a first cavity. The first cavity is used to inject molding material to rotomold the water collection frame.

[0007] The first cover plate is provided with a water production pipe forming part, and the second cover plate is provided with a receiving pipe forming part. The water production pipe forming part is used to form a water production pipe, and the receiving pipe forming part is used to form a receiving pipe. The water production pipe and the receiving pipe are both connected to the fluid channel, and the water production pipe can be plugged into the receiving pipe of another water collection frame.

[0008] The water collection frame mold is further provided with a first track forming part for forming a first connecting track, which is formed on the top of the water collection frame and extends along the width direction of the water collection frame.

[0009] In some embodiments of this application, the water collection frame mold is further provided with a first connecting molding part and a second connecting molding part. The water collection frame mold also includes a first connecting insert and a second connecting insert. The first connecting insert is disposed on the first connecting molding part so that the molding material is rotomolded into a first connecting component of the water collection frame. The second connecting insert is disposed on the second connecting molding part so that the molding material is rotomolded into a second connecting component of the water collection frame. The first connecting component is detachably connected to the second connecting component of another water collection frame.

[0010] In some embodiments of this application, the water collection frame mold is provided with at least one first connecting forming part, which can form at least one of positioning protrusion, dovetail tenon, positioning groove, and dovetail groove. The water collection frame mold is also provided with at least one second connecting forming part, which can form at least one of positioning groove, dovetail groove, positioning protrusion, and dovetail tenon.

[0011] The positioning protrusion and the positioning groove are detachably connected, and the dovetail tenon and the dovetail groove are detachably connected.

[0012] In some embodiments of this application, the water collection frame mold further includes a feeding port insert, which is disposed on the top of the water collection frame mold and is used to form a water production interface of the water collection frame, which is connected to the fluid channel.

[0013] Secondly, this application also provides a suspension component mold for manufacturing a suspension component. The suspension component is configured as a hollow structure. The suspension component mold includes a third cover plate and a fourth cover plate. The third cover plate and the fourth cover plate cover each other to form a second cavity. The second cavity is used to inject molding material to rotomold the suspension component.

[0014] The suspension component mold also includes a second track insert, and the suspension component mold is further provided with a track clearance opening for the second track insert to pass through. The second track insert is disposed in the track clearance opening along the width direction of the suspension component mold and is used to form a second connecting track with the track clearance opening.

[0015] In some embodiments of this application, the suspension component mold is provided with inwardly bent hook relief portions on both sides, the relief portions being used to form a lifting structure with inwardly bent hooks.

[0016] Thirdly, this application also provides a membrane component mold, including a water collection frame mold as described in the first aspect and a suspension component mold as described in the second aspect, wherein the first connecting track is used for detachable connection with the second connecting track.

[0017] Fourthly, this application also provides a water collection frame, which is obtained by rotational molding using the water collection frame mold of the first aspect mentioned above;

[0018] The water collection frame has a water production pipe and a receiving pipe, and the water production pipe can be plugged into and connected to the receiving pipe of another water collection frame.

[0019] The top of the water collection frame is provided with a first connecting track, which extends along the width direction of the water collection frame.

[0020] Fifthly, this application also provides a suspension component, which is obtained by rotational molding using a suspension component mold as described in the second aspect above. The bottom of the suspension component is provided with a second connecting track, which extends along the width direction of the suspension component.

[0021] Sixthly, this application also provides a membrane assembly, including a water collection frame as described in the fourth aspect above and a suspension assembly as described in the fifth aspect above, wherein the first connecting track and the second connecting track are detachably connected.

[0022] The embodiments of this application have at least the following beneficial effects: By using a first cover plate and a second cover plate to cover each other, the water collection frame mold can form a hollow structure, namely a first cavity. Molding material is injected into the first cavity, and the water collection frame manufactured by rotational molding also has a hollow structure. That is, the hollow structure inside the water collection frame forms a fluid channel, which can be used to collect and transport filtered water. The water collection frame can not only provide filtered water collection for purification components (such as membrane fibers), but also provide support and fixation for the purification components. In other words, by using the water collection frame to fix the purification components, there is no need to set up an additional membrane frame. Therefore, the step of using components to install and fix the water collection unit of a single membrane module in the membrane frame can be eliminated, simplifying the overall setup of the membrane module. Using the membrane module mold of this solution to manufacture the membrane module can, on the one hand, realize the above-mentioned membrane module manufacturing and simplify the manufacturing process; on the other hand, the membrane module formed by rotational molding can ensure its connection strength while avoiding problems such as corrosion. Attached Figure Description

[0023] The aspects and advantages described and / or added to the embodiments of this application will become apparent and readily understood in conjunction with the following drawings. It should be noted that the embodiments illustrated in the following drawings are exemplary and are used only to explain this application, and should not be construed as limiting this application.

[0024] Figure 1 This is a schematic diagram of the water collection frame structure provided in an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the suspension component structure provided in an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the water collection frame mold structure provided in the embodiments of this application;

[0027] Figure 4 This is an exploded view of the water collection frame mold provided in the embodiments of this application;

[0028] Figure 5 This is a schematic diagram of the suspension component mold structure provided in an embodiment of this application;

[0029] Figure 6 This is an exploded view of the suspension component mold provided in an embodiment of this application;

[0030] Figure 7 This is a schematic diagram of the membrane module mold structure provided in an embodiment of this application.

[0031] Reference numerals: 100, membrane module mold; 110, water collection frame mold; 111, first cover plate; 111a, permeate pipe forming part; 112, second cover plate; 112a, receiving pipe forming part; 113, permeate pipe insert; 114, receiving pipe insert; 115, first connection forming part; 116, second connection forming part; 117, first connection insert; 118, second connection insert; 119, first track forming part; 1110, feed port insert; 120, suspension module mold; 121, third cover plate ; 122. Fourth cover plate; 123. Vent hole insert; 124. Clearance part; 125. Track clearance opening; 126. Second track insert; 210. Water collection frame; 212. Water production pipe; 213. Receiving pipe; 214. First connecting assembly; 2141. Positioning protrusion; 2142. Dovetail tenon; 215. Second connecting assembly; 2151. Positioning groove; 2152. Dovetail tenon; 216. First connecting track; 220. Suspension assembly; 221. Second connecting track; 222. Lifting structure. Detailed Implementation

[0032] The following is combined Figures 1 to 7The embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] In the description of this application, it should be understood that the use of terms such as "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] Please see Figure 1 and Figure 2 This application relates to a membrane module, which includes a water collection frame 210 and a suspension component 220. The membrane module can be used to install a purification element, such as microfiltration or ultrafiltration membrane fibers. The purification element can intercept impurities in the water, filtering the water in the reaction tank to obtain filtered water. Exemplarily, the purification element can be a TIPs (Tilt-Insulated Water Filter), NIPs (Natural Insulated Water Filter), or an inner liner membrane. Other configurations and operations of the purification element are already described in the relevant art for those skilled in the art and will not be described in detail here. The structures of the water collection frame 210 and the suspension component 220 will be described in detail below.

[0036] Please see Figure 1This application relates to a water collection frame 210, which has a frame-like structure. A hollowed-out section in the middle of the water collection frame 210 can be used to install purification components, which are microfiltration membrane fibers or ultrafiltration membrane fibers. Each purification component is cast into the water collection frame 210 along its height. The interior of the water collection frame 210 has fluid channels, and the purification components communicate with these channels. The water collection frame 210 also has a product water pipe 212 and a receiving pipe 213, both of which are connected to the fluid channels. The product water pipe 212 can be plugged into and connected to the receiving pipe 213 of another water collection frame 210.

[0037] Along the thickness direction of the water collection frame 210 (e.g.) Figure 1 In the y-direction of the water collection frame 210, the water production pipe 212 and the receiving pipe 213 can be arranged on both sides of the water collection frame 210, so that multiple water collection frames 210 can be sequentially connected along their thickness direction to form an array of water collection frames 210. Or in other examples, along the width direction of the water collection frame 210 (e.g., along the y-direction of the water collection frame 210), the water production pipe 212 and the receiving pipe 213 can be arranged on both sides of the water collection frame 210, so that multiple water collection frames 210 can be sequentially connected along their thickness direction to form an array of water collection frames 210. Figure 1 In the x direction), the water production pipe 212 and the receiving pipe 213 can be set on both sides of the water collection frame 210, so that multiple water collection frames 210 can be sequentially inserted along their width direction to form an array of water collection frames 210.

[0038] In this way, the fluid channel can collect and transport filtered water. On the one hand, the water collection frame 210 can both collect filtered water for the purification unit and provide support and fixation for the purification unit. That is, by using the water collection frame to fix the purification unit, there is no need to set up a separate membrane frame. Therefore, the step of using components to install and fix the water collection unit of a single membrane module in the membrane frame can be eliminated, simplifying the overall setup of the membrane module. On the other hand, by using the interconnection of the product water pipe 212 and the receiving pipe 213 of the water collection frame 210, multiple water collection frames 210 can be arrayed to collect and transport the filtered water from multiple water collection frames 210. That is, the water collection frame 210 has both the function of transporting filtered water and the function of supporting and fixing. In this way, the functions of the water collection box and the membrane frame can be integrated into a single structure of the water collection frame 210, thereby simplifying the structure and installation process of the membrane module and solving the problem of cumbersome membrane module installation.

[0039] To facilitate the splicing and assembly of multiple water collection frames 210, a first connecting component 214 and a second connecting component 215 may be provided on the water collection frame 210. The first connecting component 214 and the second connecting component 215 are arranged on both sides of the water collection frame 210 along the thickness direction y, or along the width direction x of the water collection frame 210. The first connecting component 214 can be detachably connected to the second connecting component 215 of another water collection frame 210.

[0040] For example, the first connecting component 214 can be configured as a positioning protrusion 2141, a dovetail tenon 2142, a positioning groove 2151, a dovetail mortise 2152, etc. Correspondingly, the second connecting component 215 can be configured as a positioning groove 2151, a dovetail mortise 2152, a positioning protrusion 2141, and a dovetail tenon 2142, so that the positioning protrusion 2141 and the positioning groove 2151 can be detachably connected, and the dovetail tenon 2142 and the dovetail mortise 2152 can be detachably connected. One or more first connecting components 214 can be configured, that is, one or more of the various configuration forms mentioned above can be used, and correspondingly, one or more second connecting components 215 can also be configured.

[0041] The first connecting component 214 and the second connecting component 215 can be arranged on both sides along the thickness direction y of the water collection frame 210, so that multiple water collection frames 210 can be arranged in an array by splicing them back and forth. Alternatively, the first connecting component 214 and the second connecting component 215 can be arranged on both sides along the width direction x of the water collection frame 210, so that the water collection frame 210 can be arranged in a double or multiple row form by splicing them left and right. Preferably, in order to improve the connection strength of adjacent water collection frames 210, multiple first connecting components 214 can be provided and spaced apart along the height direction z of the water collection frame 210, so as to increase the connection parts between adjacent water collection frames 210, thereby improving the splicing strength and stability. For example, when the positioning protrusion 2141 and the positioning groove 2151 are connected to each other, pin holes can also be provided in the positioning protrusion 2141 and the positioning groove 2151, and pins or the like can be passed through the pin holes to further fasten the positioning protrusion 2141 and the positioning groove 2151. By using the dovetail tenon 2142 and dovetail groove 2152 to fit together, fasteners such as pins can be omitted, and the fastening force formed by the dovetail shape can be used to fix the adjacent water collection frame 210.

[0042] This application also relates to a suspension component 220, please refer to... Figure 2 To provide sufficient buoyancy to the water collection frame 210, the suspension component can be configured as a hollow structure, and the suspension component is equipped with a lifting structure 222. The lifting structure 222 can be a through hole or a groove-shaped structure, allowing lifting equipment to pass through and lift the suspension component. Figure 2 In the example shown, the lifting structure 222 includes a through hole and a guide groove connecting the through hole. The lifting structure 222 can be a hook or a rod. The rod slides into the through hole under the guidance of the guide groove, and the suspension component 220 is lifted by pulling the hook or rod. When multiple membrane module arrays are arranged, the rod can pass through the through holes of multiple suspension components 220 simultaneously, thereby lifting multiple membrane modules at the same time.

[0043] Optionally, the suspension module 220 and the water collection frame 210 are detachably connected. When the suspension module is installed on top of the water collection frame 210, the membrane module can operate in a suspended manner. When the suspension module is not in use, it is separated from the water collection frame 210, and the water collection frame 210 can be placed at the bottom of the reaction tank to operate submerged in the reaction tank. That is, the water collection frame 210 and the suspension module 220 can be used together or separately.

[0044] To allow for a detachable connection between the water collection frame 210 and the suspension component 220, a first connecting track 216 extending along the width direction x can be provided at the top of the water collection frame 210, and a second connecting track 221 correspondingly provided at the bottom of the suspension component 220. The first connecting track 216 can be slidably connected to the second connecting track 221. For example, the first connecting track 216 can be configured as a strip-shaped protrusion, and the second connecting track 221 can be configured as a groove. The strip-shaped protrusion can be slidably installed into the groove to connect the water collection frame 210 and the suspension component 220. Alternatively, the strip-shaped protrusion and the groove can be configured in opposite ways, i.e., the strip-shaped protrusion is provided on the suspension component 220, and the groove is provided on the water collection frame 210. For example, the cross-sectional shape of the strip-shaped protrusion can be mushroom-shaped, or it can be square, circular, or other shapes. Figure 1 As shown, the mushroom-shaped connecting track enables the water collection frame 210 and the suspension component 220 to be stably connected, preventing them from becoming loose. It also further prevents the water collection frame 210 from swinging relative to the suspension component 220, thus improving the stability of the installation.

[0045] This application also relates to a water collection frame mold 110, which is used to form a water collection frame 210.

[0046] Please see Figure 3 and Figure 4 The water collection frame mold 110 includes a first cover plate 111 and a second cover plate 112. The first cover plate 111 and the second cover plate 112 are fitted together to form a first cavity. The first cavity is used to inject molding material to form a water collection frame 210 by rotational molding. In this way, by using the first cover plate 111 and the second cover plate 112 to fit together, the water collection frame mold 110 can form a hollow structure, namely the first cavity. The water collection frame 210, which is manufactured by rotational molding by injecting molding material into the first cavity, can also have a hollow structure, that is, the hollow structure inside the water collection frame 210 forms a fluid channel. By using the membrane module mold 100 of this solution to manufacture the membrane module, the goal of manufacturing the above-mentioned water collection frame 210 can be achieved, and the manufacturing process can be simplified. On the other hand, the water collection frame 210 formed by rotational molding can avoid problems such as corrosion while ensuring its connection strength.

[0047] In some embodiments, the first cover plate 111 has a water pipe forming portion 111a with a shape corresponding to the water pipe 212, and the second cover plate 112 has a receiving pipe forming portion 112a with a shape corresponding to the receiving pipe 213. The water collection frame mold 110 further includes a water pipe insert 113 and a receiving pipe insert 114. The water pipe insert 113 is disposed on the water pipe forming portion 111a and is used to cooperate with the water pipe forming portion 111a to form the water pipe 212 with the molding material. The receiving pipe insert 114 is disposed on the receiving pipe forming portion 112a and is used to cooperate with the receiving pipe forming portion 112a to form the receiving pipe 213 with the molding material. Exemplarily, the molding material can be plastic raw material granules, powder, or liquid, etc. After the molding material is injected into the water collection frame mold 110, it has fluidity after being heated and melted, and can flow and cover the entire inner wall surface of the water collection frame 210 by rotating the water collection frame mold 110. After the molding material cools, it can be shaped to form the water collection frame 210.

[0048] In some embodiments, to facilitate the manufacture of the first cover plate 111, the first cover plate 111 is configured as four plates sequentially spliced ​​end to end to form a frame structure. In this way, the first cover plate 111 can be manufactured in four separate sections, and after manufacturing, the four sections are sequentially spliced ​​end to end to form the first cover plate 111, which has a roughly rectangular structure. Similarly, the second cover plate 112 can also be formed by splicing in the same way as the first cover plate 111. Of course, in other examples, the first cover plate 111 and the second cover plate 112 can also be formed as a single piece.

[0049] In some embodiments, in order to manufacture the structure of the first connecting component 214 and the second connecting component 215 on the water collection frame 210, the water collection frame mold 110 also has a first connecting forming portion 115 with a shape corresponding to the first connecting component 214, and a second connecting forming portion 116 with a shape corresponding to the second connecting component 215. The water collection frame mold 110 also includes a first connecting insert 117 and a second connecting insert 118. The first connecting insert 117 is disposed on the first connecting forming portion 115 so that the molding material is rotomolded into the first connecting component 214, and the second connecting insert 118 is disposed on the second connecting forming portion 116 so that the molding material is rotomolded into the second connecting component 215.

[0050] By utilizing the first connecting forming part 115 and the second connecting forming part 116, the outer contour structure of the aforementioned positioning protrusion 2141, positioning groove 2151, dovetail tenon 2142, and dovetail mortise 2152 can be formed. Furthermore, by utilizing the first connecting insert 117 in conjunction with the first connecting forming part 115, and by utilizing the second connecting insert 118 in conjunction with the second connecting forming part 116, the groove structure in the positioning groove 2151 and the dovetail mortise 2152 can be formed, thereby achieving the forming effect of the first connecting component 214 and the second connecting component 215. It is understood that the number and position of the first connecting forming part 115 and the second connecting forming part 116 need to be set according to the actual number of the first connecting component 214 and the second connecting component 215, and their actual distribution on the water collection frame 210.

[0051] In some embodiments, the water collection frame mold 110 is further provided with a first track forming part 119 for forming a first connecting track 216. Taking a mushroom-shaped first connecting track 216 as an example, the first track forming part 119 can be used to construct a mushroom-shaped cavity so that the molding material can be formed into a mushroom-shaped first connecting track 216.

[0052] In some embodiments, the water collection frame mold 110 further includes a feed port insert 1110 disposed at the top of the first cavity. The feed port insert 1110 can form a tubular cavity that serves as a water production interface for the water collection frame 210, allowing filtered water collected in the fluid channels of the water collection frame 210 to be transported out of the water collection frame 210 through the water production interface. Simultaneously, the location of the feed port insert 1110 has an opening that can be used to inject molding material into the first cavity during the manufacturing of the water collection frame 210, and the feed port insert 1110 can be used to seal the opening during rotational molding operations using the water collection frame mold 110.

[0053] This application also relates to a suspension component mold 120 for molding a suspension component 220.

[0054] Please see Figure 5 and Figure 6 The suspension component mold 120 includes a third cover plate 121 and a fourth cover plate 122, which are closed to form a second cavity. This second cavity is used to inject molding material for rotational molding into the suspension component 220. Specifically, the molding material is heated and melted within the second cavity, covering its inner wall. This allows the molding material to form a suspension component 220 with a hollow structure, thus fulfilling the function of providing buoyancy.

[0055] In some embodiments, the suspension component mold 120 has inwardly curved relief portions 124 on both sides, the shape of which corresponds to the lifting structure 222. In this way, the relief portions 124 enable the molding material to form a lifting structure 222 with an inwardly curved shape after rotational molding.

[0056] In some embodiments, the suspension component mold 120 further includes a second track insert 126, and the suspension component mold 120 is also provided with a track clearance opening 125 for the second track insert 126 to pass through. The second track insert 126 is disposed in the track clearance opening 125 along the width direction x of the suspension component mold 120, and is used to form a second track with the track clearance opening 125. In this way, the second track insert 126 can be inserted through the track clearance opening 125. The cross-section of the second track insert 126 can be mushroom-shaped, and the outer wall of the second track insert 126 and the inner walls of the third cover plate 121 and the fourth cover plate 122 can form a mushroom-shaped cavity, so that the second connecting track 221 formed therein can be interconnected with the first connecting track 216.

[0057] In some embodiments, the suspension component mold 120 further includes a vent insert 123 disposed at the top of the second cavity. Specifically, the top of the second cavity has an opening that allows molding material to be injected into the second cavity during the manufacture of the suspension component 220. When performing rotational molding using the suspension component mold 120, the vent insert 123 is used to seal the opening.

[0058] Please see Figure 7 This application also relates to a membrane module mold 100, which includes a water collection frame mold 110 and a suspension component mold 120. The specific implementation and effects of the water collection frame mold 110 and the suspension component mold 120 have been explained in the preceding embodiments four and five, and will not be repeated here.

[0059] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

[0061] In the description of this application, the presence of a comma ("、") in the patent title indicates an "and" relationship, not an "or" relationship. For example, if the patent title is "A and B", it means that the content claimed in this application is: a technical solution with the subject matter title A and a technical solution with the subject matter title B.

Claims

1. A water collection frame mold, characterized by: The water collection frame mold is used to manufacture a water collection frame. The water collection frame has a fluid channel inside. The water collection frame mold includes a first cover plate and a second cover plate. The first cover plate and the second cover plate cover each other to form a first cavity. The first cavity is used to inject molding material to rotomold the water collection frame. The first cover plate is provided with a water production pipe forming part, and the second cover plate is provided with a receiving pipe forming part. The water production pipe forming part is used to form a water production pipe, and the receiving pipe forming part is used to form a receiving pipe. The water production pipe and the receiving pipe are both connected to the fluid channel, and the water production pipe can be plugged into the receiving pipe of another water collection frame. The water collection frame mold is further provided with a first track forming part for forming a first connecting track. The first connecting track is formed on the top of the water collection frame and extends along the width direction of the water collection frame. The water collection frame mold is further provided with a first connecting molding part and a second connecting molding part. The water collection frame mold also includes a first connecting insert and a second connecting insert. The first connecting insert is disposed in the first connecting molding part so that the molding material is rotomolded into a first connecting component of the water collection frame. The second connecting insert is disposed in the second connecting molding part so that the molding material is rotomolded into a second connecting component of the water collection frame. The first connecting component is detachably connected to the second connecting component of another water collection frame. The water collection frame mold also includes a feeding port insert, which is disposed on the top of the water collection frame mold. The feeding port insert is used to form a water production interface of the water collection frame, and the water production interface is connected to the fluid channel.

2. The water collection frame mold of claim 1, wherein: The water collection frame mold is provided with at least one first connecting forming part, which can form at least one of the following: positioning protrusion, dovetail tenon, positioning groove, and dovetail groove. The water collection frame mold is also provided with at least one second connecting forming part, which can form at least one of the following: positioning groove, dovetail groove, positioning protrusion, and dovetail tenon. The positioning protrusion and the positioning groove are detachably connected, and the dovetail tenon and the dovetail groove are detachably connected.

3. A suspension assembly mold characterized by: The suspension component mold is used to manufacture the suspension component. The suspension component is configured as a hollow structure. The suspension component mold includes a third cover plate and a fourth cover plate. The third cover plate and the fourth cover plate cover each other to form a second cavity. The second cavity is used to inject molding material to rotomold the suspension component. The suspension component mold also includes a second track insert, and the suspension component mold is further provided with a track clearance opening for the second track insert to pass through. The second track insert is disposed in the track clearance opening along the width direction of the suspension component mold and is used to form a second connecting track with the track clearance opening. The suspension component mold has inwardly bent hook relief portions on both sides, which are used to form a lifting structure with inwardly bent hooks. The suspension component mold also includes a venting insert, which is disposed at the top of the second cavity. The top of the second cavity has an opening for injecting molding material into the second cavity during the manufacturing of the suspension component. When performing rotational molding using the suspension component mold, the venting insert is used to seal the opening.

4. A membrane module mold characterized by: Includes the water collection frame mold as described in any one of claims 1 to 2 and the suspension component mold as described in claim 3, wherein the first connecting rail is used for detachable connection with the second connecting rail.

5. A catch basin frame, characterized by: The water collection frame is obtained by rotational molding using the water collection frame mold described in any one of claims 1 to 2; The water collection frame has a water production pipe and a receiving pipe, and the water production pipe can be plugged into and connected to the receiving pipe of another water collection frame. The top of the water collection frame is provided with a first connecting track, which extends along the width direction of the water collection frame.

6. A suspension assembly characterized by: The suspension component is obtained by rotational molding using the suspension component mold as described in claim 3. The bottom of the suspension component is provided with a second connecting track, which extends along the width direction of the suspension component.

7. A membrane module characterized by: It includes the water collection frame as described in claim 5 and the suspension component as described in claim 6, wherein the first connecting rail and the second connecting rail are detachably connected.