Polyurethane raw material filter device
By designing a polyurethane raw material filter device with a detachable filter cloth structure and a drive motor system, the problem of difficult filter cloth replacement was solved, improving filtration efficiency and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-24
AI Technical Summary
Impurities in the polyurethane raw material can clog the filter cartridge mesh, leading to decreased filtration efficiency and making it difficult to replace the filter cloth efficiently.
A polyurethane raw material filter device was designed, which adopts a detachable filter cloth structure and a limiting mechanism. The filter cloth is covered by the groove on the outer wall of the mounting cylinder, and the filter cloth can be disassembled and replaced by a drive motor and a gear transmission system.
It enables convenient disassembly and replacement of the filter cloth, improves the filtration efficiency of polyurethane raw materials, avoids filter pore clogging, and extends the service life of the equipment.
Smart Images

Figure CN224024455U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to polyurethane raw material filtering technical field, specifically polyurethane raw material filter device. BACKGROUND
[0002] Polyurethane was first developed in the 1930s by German scientists, and the German scientists polymerized liquid isocyanate and liquid polyether or glycol polyester to form a new material. The fluid raw material of polyurethane is stored in the cylinder, which is convenient for the storage and transportation of polyurethane raw materials. With the rapid development of the polyurethane industry in China in recent years, the large application of polyurethane raw materials in the household appliance, automobile and thermal insulation building material industries, the transportation, storage, environmental protection and use cost of polyurethane raw materials have become the common concern of the industry.
[0003] Polyurethane raw materials are mostly water-based materials, which may contain impurities. The impurities in the polyurethane raw materials are filtered by the filter cartridge in the filter, and the filtered impurities are left in the filter cartridge. After long-term use, the impurities block the mesh of the filter cartridge. UTILITY MODEL CONTENT
[0004] The utility model provides a kind of polyurethane raw material filter device to solve the problems in the background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of polyurethane raw material filter device, including the cylinder with top opening, bottom support leg, the top of the cylinder is hinged with the cover plate that can cover its opening, the cover plate is installed with feed pipe, the bottom inner wall of the cylinder is rotatably connected with the plug post, the top of the plug post is detachably connected with the fixed frame, the top of the fixed frame is fixedly connected with the installation cylinder matched with feed pipe, the outer wall of the installation cylinder is evenly provided with slot along its circumference, and the installation cylinder is provided with filter cloth covering the installation cylinder by limiting mechanism.
[0006] Further, the limiting mechanism includes a first arc-shaped rod, a second arc-shaped rod, a first ear block, and a second ear block. The first arc-shaped rod has a first ear block integrally connected to both ends thereof. The second arc-shaped rod has a second ear block integrally connected to both ends thereof. The first ear block at one end of the first arc-shaped rod is hingedly connected to the second ear block at one end of the second arc-shaped rod. The first ear block at the other end of the first arc-shaped rod is connected to the second ear block at the other end of the second arc-shaped rod by the cooperation of a bolt and a butterfly nut.
[0007] Further, the bottom of the fixed frame is provided with a slot, and the plug post is inserted into the slot.
[0008] Further, the plug post is in the shape of a hexagonal prism, and the slot is cooperatively arranged with the plug post.
[0009] Furthermore, a protective box is connected to the bottom of the cylinder, a drive motor is installed inside the protective box, and a rotating shaft is fixedly connected to the bottom of the insertion post, which rotates through the bottom of the cylinder and extends into the protective box. The rotating shaft is connected to the output shaft of the drive motor through gear transmission.
[0010] Furthermore, a discharge pipe is provided at the bottom of one side of the cylinder.
[0011] Compared with the prior art, the present invention provides a polyurethane raw material filter device with the following advantages: the polyurethane raw material filter device can filter water-based polyurethane raw materials that enter the installation cylinder and pass through the filter cloth by detachably installing a filter cloth covering the grooves on the outer wall of the installation cylinder. After long-term use, the filter cloth can be easily disassembled and replaced. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the planar structure of the present invention;
[0014] Figure 3 This is an enlarged schematic diagram of point A in this utility model;
[0015] Figure 4 This is a top view of the mounting cylinder of this utility model;
[0016] Figure 5 This is a schematic diagram of the slot structure of this utility model.
[0017] In the diagram: 1. Cylinder body; 2. Support leg; 3. Cover plate; 4. Feed pipe; 5. Discharge pipe; 6. Mounting cylinder; 7. Groove; 8. Filter cloth; 9. Rotating shaft; 10. First arc-shaped rod; 11. Second arc-shaped rod; 12. First ear block; 13. Second ear block; 14. Fixing frame; 15. Slot; 16. Insert post; 17. Protective box; 18. Drive motor. Detailed Implementation
[0018] 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.
[0019] Please see Figures 1-5This utility model discloses a polyurethane raw material filter device, including a cylindrical body 1 with an opening at the top and supporting legs 2 at the bottom. A cover plate 3 is hinged to the top of the cylindrical body 1 to cover its opening. A feed pipe 4 is installed on the cover plate 3. An insert post 16 is rotatably connected to the bottom inner wall of the cylindrical body 1. A fixing frame 14 is detachably connected to the top of the insert post 16. An installation cylinder 6 that cooperates with the feed pipe 4 is fixedly connected to the top of the fixing frame 14. The outer wall of the installation cylinder 6 is uniformly provided with grooves 7 along its circumference. A filter cloth 8 is provided to cover the installation cylinder 6 through a limiting mechanism. This polyurethane raw material filter device can filter water-based polyurethane raw materials that enter the installation cylinder 6 and pass through the filter cloth 8 by detachably installing the filter cloth 8 covering the grooves 7 on the outer wall of the installation cylinder 6. After long-term use, the filter cloth 8 can be easily disassembled and replaced.
[0020] A discharge pipe 5 is provided at the bottom of one side of the cylinder 1.
[0021] The top of the mounting cylinder 6 is provided with an opening, the feed pipe 4 extends into the inner cavity of the cylinder 1 and the bottom end can be inserted into the opening of the mounting cylinder 6. The filter cloth 8 is cylindrical with openings at the bottom and top. The filter cloth 8 can filter water-based polyurethane raw materials that pass through the mounting cylinder 6.
[0022] Specifically, the limiting mechanism includes a first arc-shaped rod 10, a second arc-shaped rod 11, a first lug 12, and a second lug 13. The first lug 12 is integrally connected to both ends of the first arc-shaped rod 10, and the second lug 13 is integrally connected to both ends of the second arc-shaped rod 11. The first lug 12 at one end of the first arc-shaped rod 10 is hinged to the second lug 13 at one end of the second arc-shaped rod 11. The first lug 12 at the other end of the first arc-shaped rod 10 and the second lug 13 at the other end of the second arc-shaped rod 11 are connected by bolts and wing nuts.
[0023] In this embodiment, when the first arc-shaped rod 10 and the second arc-shaped rod 11 are connected, they can form a clamp. The outer wall of the mounting cylinder 6 is provided with limiting mechanisms above and below the groove 7 to hold the filter cloth 8 tightly on the outer wall of the mounting cylinder 6.
[0024] Specifically, the bottom of the fixing frame 14 is provided with a slot 15, and the insert post 16 is inserted into the slot 15.
[0025] The insert 16 is hexagonal prism shaped, and the slot 15 is configured to cooperate with the insert 16.
[0026] In this embodiment, the insert 16 is inserted into the slot 15. When the insert 16 is driven to rotate, the insert 16 abuts against the inner wall of the slot 15, which enables the fixing frame 14 to drive the mounting cylinder 6 to rotate, so that the water-based polyurethane raw material that has entered the mounting cylinder 6 can be centrifugally ejected.
[0027] At the same time, when the insert post 16 is inserted into the slot 15, it can also easily drive the mounting cylinder 6 upward, so that the fixing frame 14 is separated from the insert post 16.
[0028] Specifically, a protective box 17 is connected to the bottom of the cylinder 1, and a drive motor 18 is installed in the inner cavity of the protective box 17. A rotating shaft 9 is fixedly connected to the bottom of the insert 16, which rotates through the bottom of the cylinder 1 and extends into the protective box 17. The rotating shaft 9 is connected to the output shaft of the drive motor 18 through gear transmission.
[0029] In this embodiment, the output shaft of the drive motor 18 drives the rotating shaft 9 through a gear transmission, so that the rotating shaft 9 can be driven to rotate. When the rotating shaft 9 rotates, the insertion post 16 is driven to rotate, so that the mounting cylinder 6 can rotate.
[0030] In summary, this polyurethane raw material filter device, by detachably installing a filter cloth 8 covering the groove 7 of the outer wall of the mounting cylinder 6, can filter water-based polyurethane raw materials that enter the mounting cylinder 6 and pass through the filter cloth 8. After long-term use, the filter cloth 8 can be easily disassembled and replaced.
[0031] 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 polyurethane raw material filter device, comprising a cylindrical body (1) with an opening at the top and supporting legs (2) at the bottom, characterized in that: The top of the cylinder (1) is hinged with a cover plate (3) that can cover its opening. A feed pipe (4) is installed on the cover plate (3). A plug (16) is rotatably connected to the bottom inner wall of the cylinder (1). A fixing frame (14) is detachably connected to the top of the plug (16). An installation cylinder (6) that cooperates with the feed pipe (4) is fixedly connected to the top of the fixing frame (14). The outer wall of the installation cylinder (6) is uniformly provided with grooves (7) along its circumference. The installation cylinder (6) is provided with a filter cloth (8) that covers the installation cylinder (6) through a limiting mechanism.
2. The polyurethane raw material filter device according to claim 1, characterized in that: The limiting mechanism includes a first arc-shaped rod (10), a second arc-shaped rod (11), a first lug (12), and a second lug (13). The first lug (12) is integrally connected to both ends of the first arc-shaped rod (10), and the second lug (13) is integrally connected to both ends of the second arc-shaped rod (11). The first lug (12) at one end of the first arc-shaped rod (10) is hinged to the second lug (13) at one end of the second arc-shaped rod (11). The first lug (12) at the other end of the first arc-shaped rod (10) and the second lug (13) at the other end of the second arc-shaped rod (11) are connected by a bolt and a wing nut.
3. The polyurethane raw material filter device according to claim 1, characterized in that: The bottom of the fixed frame (14) is provided with a slot (15), and the insert (16) is inserted into the slot (15).
4. A polyurethane raw material filter device according to claim 3, characterized in that: The insert (16) is hexagonal prism-shaped, and the slot (15) is configured to cooperate with the insert (16).
5. A polyurethane raw material filter device according to claim 1, characterized in that: The bottom of the cylinder (1) is connected to a protective box (17), and a drive motor (18) is installed in the inner cavity of the protective box (17). The bottom of the insert (16) is fixedly connected to a rotating shaft (9) that rotatably passes through the bottom of the cylinder (1) and extends into the protective box (17). The rotating shaft (9) is connected to the output shaft of the drive motor (18) through gear transmission.
6. A polyurethane raw material filter device according to claim 1, characterized in that: The bottom side of the cylinder (1) is provided with a discharge pipe (5).