A high-hardness wastewater discharge pipe for production of ethylene-propylene-diene rubber
By introducing anti-clogging and filtration mechanisms into the wastewater discharge pipe, the problem of easy clogging of the wastewater discharge pipe in the production of high-hardness EPDM rubber has been solved, realizing smooth wastewater discharge and convenient maintenance, and reducing safety hazards and environmental risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI XINDING POLYMER MATERIAL CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional wastewater discharge pipes are prone to clogging during the production of high-hardness EPDM rubber, resulting in poor wastewater discharge, affecting production progress and potentially causing safety hazards.
A wastewater discharge pipe including an anti-clogging mechanism and a filtration mechanism was designed. The anti-clogging mechanism drives the threaded pipe and the rotating shaft by rotating the screw, so that the stirring plate stirs the wastewater in the discharge pipe to prevent the accumulation of impurities. The filtration mechanism realizes the quick installation and removal of the filter cover through the snap-fit rod and snap-fit hole, which is convenient for cleaning.
It effectively prevents blockages, ensures smooth wastewater discharge, reduces maintenance difficulty, and improves production safety and environmental performance.
Smart Images

Figure CN224468523U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of EPDM rubber production technology, specifically a wastewater discharge pipe for the production of high-hardness EPDM rubber. Background Technology
[0002] Ethylene propylene diene monomer (EPDM) rubber is a copolymer of ethylene, propylene, and a small amount of non-conjugated diene. It is a type of ethylene propylene rubber. Because its main chain is composed of chemically stable saturated hydrocarbons and it only contains unsaturated double bonds in its side chains, it has excellent aging resistance such as ozone resistance, heat resistance, and weather resistance. It can be widely used in automotive parts, waterproof building materials, wire and cable sheaths, heat-resistant hoses, tapes, automotive seals, and other fields.
[0003] According to the authorized patent "CN213358857U", a wastewater discharge pipe for high-hardness EPDM rubber production includes a discharge bend, a connecting straight pipe, and a second connecting collar. Both ends of the connecting straight pipe are provided with discharge bends, and installation sleeves are installed on the outer sides of each discharge bend. A second connecting collar is installed on the end of each installation sleeve near the connecting straight pipe, and a set of fixing slots is symmetrically arranged on the end of each second connecting collar near the connecting straight pipe. This utility model includes a fixing plate, a second connecting collar, a fixing spring, and a limiting block. A limiting groove is provided on the second connecting collar for coordinated use. Inserting the limiting block into the limiting groove allows the discharge bend and the connecting straight pipe to be installed. Pushing the limiting block out of the limiting groove allows the discharge bend to be removed from the connecting straight pipe, thus facilitating unblocking and replacement of the discharge bend.
[0004] In the process of using the above-mentioned technical solutions, traditional wastewater discharge pipes generally suffer from clogging problems when treating wastewater from the production of high-hardness EPDM rubber. Once the pipes are clogged, not only will the wastewater discharge be obstructed, affecting the production progress, but it may also cause the pressure inside the pipes to rise, resulting in pipe rupture, wastewater leakage and other safety hazards, thereby polluting the environment and increasing the company's maintenance costs and environmental risks.
[0005] Therefore, this utility model provides a wastewater discharge pipe for the production of high-hardness EPDM rubber. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a wastewater discharge pipe for the production of high-hardness EPDM rubber, thereby solving the aforementioned problems.
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a wastewater discharge pipe for the production of high-hardness EPDM rubber, comprising a discharge pipe body, wherein an anti-clogging mechanism is provided inside the discharge pipe body;
[0008] The anti-clogging mechanism includes a movable tube with a rotating groove in its inner wall. A limit rod is slidably connected inside the rotating groove. A rotating shaft is fixedly connected to the outer side of the limit rod. A stirring plate is provided on the outer bottom of the rotating shaft. A connecting plate is fixedly connected to the top of the rotating shaft. A threaded tube is fixedly connected to the top of the connecting plate. A screw is threaded inside the threaded tube. A positioning hole is provided in the outer wall of the discharge pipe body.
[0009] Preferably, a filtration mechanism is provided at the tail end of the discharge pipe body. The filtration mechanism includes a filter cover. An L-shaped plate is fixedly connected to the outer side of the discharge pipe body. A conduit is fixedly connected to the outer side of the L-shaped plate. A snap-fit rod is movably connected inside the conduit. A compression spring is fixedly connected to the snap-fit rod. A snap-fit hole is provided in the outer wall of the filter cover.
[0010] Preferably, the movable tube is fixedly connected to the top of the excretion tube body, and the rotating shaft is rotatably connected inside the movable tube via a limiting rod.
[0011] Preferably, the stirring plates are evenly distributed on the outer side of the rotating shaft, and the stirring plates are rotatably connected to the inside of the discharge pipe body.
[0012] Preferably, the connecting plate is rotatably connected to the outside of the drain pipe body, the screw is adapted to the positioning hole, and the initial position of the bottom of the screw is inside the positioning hole.
[0013] Preferably, the filter cover is snapped onto the outer side of the tail end of the drain pipe body, and the L-shaped plates are symmetrically distributed on the outer side of the drain pipe body.
[0014] Preferably, the locking rod is movably connected to the inside of the conduit by a compression spring, and the locking rod passes through the inside of the L-shaped plate.
[0015] Preferably, the number of snap-fit holes and snap-fit rods are the same, and the snap-fit rods are adapted to the snap-fit holes.
[0016] Beneficial effects
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] (1) In the anti-clogging mechanism of the wastewater discharge pipe for high-hardness EPDM rubber production, the screw drives the threaded pipe, connecting plate and rotating shaft to rotate, so that the stirring plate stirs the wastewater and impurities inside the discharge pipe body, avoiding the accumulation of impurities and causing blockage, and ensuring smooth discharge of wastewater. The cooperation between the limit rod and the rotating groove ensures the stable rotation of the rotating shaft and improves the anti-clogging effect.
[0019] (2) The wastewater discharge pipe for the production of high-hardness EPDM rubber has a screw and a positioning hole that are compatible with the anti-clogging mechanism. When it is necessary to inspect or clean the internal components, the screw can be unscrewed to facilitate the disassembly of the anti-clogging mechanism components. The filter cover of the filter mechanism is connected to the body of the discharge pipe through the snap-fit rod and the snap-fit hole. The compression spring makes the snap-fit rod tightly snap into the snap-fit hole. When disassembling, the filter cover can be removed simply by pulling the snap-fit rod, which is convenient for cleaning the filtered impurities and reducing the difficulty of maintenance. Attached Figure Description
[0020] Figure 1 This is a perspective view of the present invention;
[0021] Figure 2 This is a schematic diagram of the outer structure of the anti-blocking mechanism of this utility model;
[0022] Figure 3 This is a schematic diagram of the external structure of the filter mechanism of this utility model;
[0023] Figure 4 This is a utility model Figure 3 Enlarged view of the structure at point A in the middle.
[0024] In the diagram: 1. Drainage pipe body; 2. Anti-clogging mechanism; 21. Movable pipe; 22. Rotating groove; 23. Limiting rod; 24. Rotating shaft; 25. Stirring plate; 26. Connecting plate; 27. Threaded pipe; 28. Screw; 29. Positioning hole; 3. Filtering mechanism; 31. Filter cover; 32. L-shaped plate; 33. Guide tube; 34. Snap-fit rod; 35. Compression spring; 36. Snap-fit hole. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-4 A wastewater discharge pipe for the production of high-hardness EPDM rubber includes a discharge pipe body 1, and an anti-blocking mechanism 2 is provided inside the discharge pipe body 1.
[0027] The anti-blocking mechanism 2 includes a movable tube 21, a rotating groove 22 is provided in the inner wall of the movable tube 21, a limit rod 23 is slidably connected inside the rotating groove 22, a rotating shaft 24 is fixedly connected to the outer side of the limit rod 23, a stirring plate 25 is provided on the bottom outer side of the rotating shaft 24, a connecting plate 26 is fixedly connected to the top of the rotating shaft 24, a threaded tube 27 is fixedly connected to the top of the connecting plate 26, a screw 28 is threadedly connected inside the threaded tube 27, and a positioning hole 29 is provided in the outer wall of the discharge pipe body 1.
[0028] Furthermore: the movable tube 21 is fixedly connected to the top of the drain pipe body 1, the rotating shaft 24 is rotatably connected to the inside of the movable tube 21 through the limiting rod 23, the stirring plate 25 is evenly distributed on the outside of the rotating shaft 24 and is rotatably connected to the inside of the drain pipe body 1, the connecting plate 26 is rotatably connected to the outside of the drain pipe body 1, the screw 28 is adapted to the positioning hole 29, and the initial position of the bottom of the screw 28 is inside the positioning hole 29.
[0029] It should be noted that a sealing ring is provided at the edge of the snap-fit hole 36. When the snap-fit rod 34 is inserted, the sealing ring fits tightly with the snap-fit rod 34 to prevent wastewater from leaking from the connection and to ensure the sealing and reliability of the entire filter mechanism 3.
[0030] As a further improvement of this utility model, a filter mechanism 3 is provided at the tail end of the drain pipe body 1. The filter mechanism 3 includes a filter cover 31. An L-shaped plate 32 is fixedly connected to the outside of the drain pipe body 1. A conduit 33 is fixedly connected to the outside of the L-shaped plate 32. A snap-fit rod 34 is movably connected inside the conduit 33. A compression spring 35 is fixedly connected to the snap-fit rod 34. A snap-fit hole 36 is opened in the outer wall of the filter cover 31.
[0031] Furthermore: the filter cover 31 is snapped onto the outer side of the tail end of the drain pipe body 1, the L-shaped plates 32 are symmetrically distributed on the outer side of the drain pipe body 1, the snap-fit rod 34 is movably connected to the inside of the conduit 33 through the compression spring 35, and the snap-fit rod 34 passes through the inside of the L-shaped plate 32, the number of snap-fit holes 36 is the same as the number of snap-fit rods 34, and the snap-fit rods 34 are adapted to the snap-fit holes 36.
[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0033] Working principle: In the anti-blocking mechanism 2, the movable tube 21 is fixedly connected to the top of the drain pipe body 1. The rotating groove 22 on its inner wall is slidably connected to the limiting rod 23. The outer side of the limiting rod 23 is fixedly connected to the rotating shaft 24, so that the rotating shaft 24 is rotatably connected to the inside of the movable tube 21 through the limiting rod 23. This structure provides guidance and support for the rotation of the rotating shaft 24. When the anti-blocking function needs to be activated, the operator rotates the screw 28. Because the threaded tube 27 is threadedly connected to the screw 28, the rotation of the screw 28 will drive the threaded tube 27 to move up and down based on the thread transmission principle. And because the top of the threaded tube 27 is fixed in sequence... The connecting plate 26 and the rotating shaft 24 are connected, so the movement of the threaded pipe 27 will drive the connecting plate 26 and the rotating shaft 24 to move. When the rotating shaft 24 rotates, the stirring plates 25 evenly distributed on the outer side of its bottom will rotate inside the discharge pipe body 1. The stirring plates 25 stir the wastewater, break up the blocky impurities and flocculents, and prevent them from accumulating and clogging in the pipe, ensuring the smooth flow of wastewater. When stirring is not required, the screw 28 is rotated in the opposite direction, so that the bottom of the screw 28 is re-inserted into the positioning hole 29 on the outer wall of the discharge pipe body 1, which restricts the rotation of the threaded pipe 27 and the rotating shaft 24 and prevents them from running on their own due to the impact of wastewater.
[0034] In the filtration mechanism 3, the filter cover 31 is snapped onto the outer side of the tail end of the discharge pipe body 1. The L-shaped plate 32 is symmetrically fixed on the outer side of the discharge pipe body 1. The guide tube 33 is fixed on the outer side of the L-shaped plate 32, providing a fixed structure for the installation of the filter cover 31. When installing the filter cover 31, align it with the tail end of the discharge pipe body 1 and push it. When the snap-fit hole 36 on the outer wall of the filter cover 31 corresponds to the position of the snap-fit rod 34 in the guide tube 33, the snap-fit rod 34 is quickly inserted into the snap-fit hole 36 under the action of the compression spring 35, completing the quick installation of the filter cover 31. The number of snap-fit rods 34 is the same as the snap-fit hole 36 and they are compatible to ensure a stable installation. When wastewater is discharged, the filter cover 31 intercepts larger particulate impurities to prevent them from flowing into subsequent treatment equipment or the environment. When cleaning or replacing the filter cover 31, manually press the snap-fit rod 34 to overcome the spring force of the compression spring 35, so that the snap-fit rod 34 is removed from the snap-fit hole 36, and the filter cover 31 can be removed.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wastewater discharge pipe for the production of high-hardness EPDM rubber, comprising a discharge pipe body (1), characterized in that: The drain pipe body (1) is equipped with an anti-blocking mechanism (2); The anti-blocking mechanism (2) includes a movable tube (21), a rotating groove (22) is provided in the inner wall of the movable tube (21), a limiting rod (23) is slidably connected inside the rotating groove (22), a rotating shaft (24) is fixedly connected to the outer side of the limiting rod (23), a stirring plate (25) is provided on the bottom outer side of the rotating shaft (24), a connecting plate (26) is fixedly connected to the top of the rotating shaft (24), a threaded tube (27) is fixedly connected to the top of the connecting plate (26), a screw (28) is threadedly connected inside the threaded tube (27), and a positioning hole (29) is provided in the outer wall of the discharge pipe body (1).
2. The wastewater discharge pipe for high-hardness EPDM rubber production according to claim 1, characterized in that: The tail end of the drain pipe body (1) is provided with a filter mechanism (3), the filter mechanism (3) includes a filter cover (31), an L-shaped plate (32) is fixedly connected to the outside of the drain pipe body (1), a conduit (33) is fixedly connected to the outside of the L-shaped plate (32), a snap-fit rod (34) is movably connected inside the conduit (33), a compression spring (35) is fixedly connected to the snap-fit rod (34), and a snap-fit hole (36) is opened on the outer wall of the filter cover (31).
3. The wastewater discharge pipe for high-hardness EPDM rubber production according to claim 1, characterized in that: The movable tube (21) is fixedly connected to the top of the drain tube body (1), and the rotating shaft (24) is rotatably connected to the inside of the movable tube (21) through the limiting rod (23).
4. The wastewater discharge pipe for high-hardness EPDM rubber production according to claim 1, characterized in that: The stirring plates (25) are evenly distributed on the outside of the rotating shaft (24), and the stirring plates (25) are rotatably connected to the inside of the drain pipe body (1).
5. The wastewater discharge pipe for high-hardness EPDM rubber production according to claim 1, characterized in that: The connecting plate (26) is rotatably connected to the outside of the drain pipe body (1), the screw (28) is adapted to the positioning hole (29), and the initial position of the bottom of the screw (28) is inside the positioning hole (29).
6. The wastewater discharge pipe for high-hardness EPDM rubber production according to claim 2, characterized in that: The filter cover (31) is snapped onto the outer side of the tail end of the drain pipe body (1), and the L-shaped plate (32) is symmetrically distributed on the outer side of the drain pipe body (1).
7. A wastewater discharge pipe for the production of high-hardness EPDM rubber according to claim 2, characterized in that: The snap-fit rod (34) is movably connected to the inside of the guide tube (33) by a compression spring (35), and the snap-fit rod (34) passes through the inside of the L-shaped plate (32).
8. A wastewater discharge pipe for the production of high-hardness EPDM rubber according to claim 2, characterized in that: The number of the snap-fit holes (36) and the snap-fit rods (34) are the same, and the snap-fit rods (34) are adapted to the snap-fit holes (36).