PPH pressure-resistant membrane shell structure

Abstract

The utility model relates to the technical field of water treatment equipment, in particular to a PPH pressure-resistant membrane shell structure which comprises a main body, two ends of the main body are detachably connected with end sockets, and a fixing mechanism for fixing the end sockets at the end parts of the main body is arranged between the two end sockets. The fixing mechanism comprises two fixing rings which are connected with the sealing heads at the corresponding positions in a sleeving mode, and a plurality of connecting blocks are fixedly connected to the outer walls of the fixing rings in an annular mode at equal angles. According to the utility model, the two end sockets can be respectively fixed at the two ends of the main body by the two fixing rings through the rotation of the plurality of thread bushings, and the plurality of gears can be locked by meshing the gear ring II with the plurality of gears, so that the thread bushings are prevented from angular deviation caused by external vibration, and the condition of water seepage can be avoided; in addition, the two end sockets can be quickly mounted and dismounted, so that a worker can conveniently replace the ceramic membrane filter element in the water treatment device, and the water treatment efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, specifically to a PPH pressure-resistant membrane shell structure. Background Technology

[0002] A pressure-resistant membrane housing is a shell structure capable of withstanding high pressure. A PPH pressure-resistant membrane housing is a membrane element container used in water treatment equipment, mainly applied in reverse osmosis water treatment systems and seawater desalination water treatment systems. PPH pressure-resistant membrane housings are made of polypropylene through β-modification, which has extremely high chemical stability and high temperature resistance. PPH material has the strongest chemical resistance among all polypropylene pipes, and has a long service life and system stability.

[0003] Currently available pressure-resistant membrane housings typically consist of an upper end cap, a lower end cap, and a middle section of the membrane housing, all fastened together with bolts. Multiple ceramic membrane filter elements are placed inside the middle section. During assembly, the upper and lower end caps are fixed to both ends of the middle section with bolts, and the ceramic membrane filter elements inside the middle section need to be replaced periodically. While bolt fixing is simple, it is time-consuming to install and disassemble, resulting in a significant reduction in water treatment efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a PPH pressure-resistant membrane shell structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The PPH pressure-resistant membrane shell structure includes a main body, both ends of which are detachably connected to end caps. A fixing mechanism is provided between the two end caps to fix the end caps to the ends of the main body. The fixing mechanism includes two fixing rings that respectively engage with the end caps at corresponding positions. Multiple connecting blocks are fixedly connected to the outer wall of the fixing rings at equal angles. Screws are fixedly connected to the opposite sides of the two connecting blocks at opposite positions. Threaded sleeves are screwed between the outer walls of the two screws at opposite positions. Gears are fixedly connected to the outer wall of the threaded sleeves. A gear ring I that meshes with multiple gears is slidably connected to the outer wall of the main body. A gear ring II that meshes with multiple gears is also slidably connected to the outer wall of the main body.

[0007] Furthermore, both ends of the outer wall of the main body are fixedly connected at equal angles with multiple fixing blocks that penetrate and fix the threaded sleeves at corresponding positions.

[0008] Furthermore, a hexagonal block is fixedly connected to the outer wall of the threaded sleeve.

[0009] Furthermore, a sliding rod is fixedly connected between two fixed blocks at relatively opposite positions. A connecting ring that slides through multiple sliding rods is rotatably connected to the inner wall of the gear ring. A limit ring is fixedly connected to the inner wall of the connecting ring. Multiple cylindrical grooves are formed at equal angles on the outer wall of the sliding rod corresponding to the gear. Spring steel balls are fixedly connected in the cylindrical grooves. Multiple hemispherical grooves that engage with the spring steel balls at corresponding positions are formed at equal angles on the inner wall of the connection between the connecting ring and the sliding rod.

[0010] Furthermore, the gear ring 2 slides through multiple sliding rods, and the inner wall of the connection between the gear ring 2 and the sliding rods is provided with multiple hemispherical grooves 2 that engage with spring steel balls at corresponding positions. The inner wall of the gear ring 2 is fixedly connected with a limit ring 2.

[0011] Furthermore, the width of the first limiting ring is greater than the width of the first toothed ring, and the width of the second limiting ring is greater than the width of the second toothed ring.

[0012] Furthermore, the flanges at both ends of the main body are fixedly connected with multiple pins at equal angles on their sides, and the flanges at the end caps have grooves on their sides corresponding to the pins for insertion.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The rotation of multiple threaded sleeves allows two retaining rings to fix the two end caps to the two ends of the main body respectively. By meshing the gear ring two with multiple gears, the gears can be locked to prevent the threaded sleeves from shifting due to external vibrations, thus avoiding water leakage. Furthermore, the two end caps can be quickly installed and removed, facilitating the replacement of the internal ceramic membrane filter element by staff, thereby improving water treatment efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the main body and two end caps of this utility model;

[0017] Figure 3 This is an enlarged view of point A in this utility model;

[0018] Figure 4 This is a schematic diagram of the fixing mechanism in this utility model;

[0019] Figure 5 This is a schematic diagram of the gear ring in this utility model;

[0020] Figure 6 This is an enlarged view of section B in this utility model;

[0021] Figure 7 This is a schematic diagram of the gear ring 2 in this utility model.

[0022] In the diagram: 1. Main body; 11. End cap; 12. Fixing block; 13. Sliding rod; 14. Spring steel ball; 15. Pin; 16. Groove; 2. Fixing mechanism; 21. Fixing ring; 22. Connecting block; 23. Screw; 24. Threaded sleeve; 25. Hexagonal block; 26. Gear; 3. Gear ring one; 31. Connecting ring; 32. Hemispherical groove one; 33. Limiting ring one; 4. Gear ring two; 41. Limiting ring two. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-7 In this embodiment of the utility model, the PPH pressure-resistant membrane shell structure includes a main body 1. Both ends of the main body 1 are detachably connected to end caps 11. A fixing mechanism 2 for fixing the end caps 11 to the end of the main body 1 is provided between the two end caps 11. The fixing mechanism 2 includes two fixing rings 21 that are respectively sleeved with the end caps 11 at corresponding positions. Multiple connecting blocks 22 are fixedly connected to the outer wall of the fixing rings 21 at equal angles. Screws 23 are fixedly connected to the opposite sides of the two connecting blocks 22 at opposite positions. Threaded sleeves 24 are screwed between the outer walls of the two screws 23 at opposite positions. Gears 26 are fixedly connected to the outer wall of the threaded sleeves 24. A gear ring 3 that meshes with multiple gears 26 is slidably connected to the outer wall of the main body 1. A gear ring 4 that meshes with multiple gears 26 is slidably connected to the outer wall of the main body 1.

[0025] Specifically, first, the upper end cap 11 is placed on the top of the main body 1, and the lower end cap 11 is placed in the lower fixing ring 21. Then, by moving the gear ring 3 to mesh with multiple gears 26, and then rotating one of the threaded sleeves 24, the rotating threaded sleeve 24 can be made to rotate simultaneously through the meshing of the gear 26 and the gear ring 3. The rotating threaded sleeve 24 can make the two screws 23 at corresponding positions move closer or further away from each other, thus making the two fixing rings 21 move closer or further away from each other. When the two fixing rings 21 move closer to each other, the two end caps 11 can be fixed to both ends of the main body 1 respectively. Then, the gear ring 3 is disengaged from the multiple gears 26, and the gear ring 4 is meshed with the multiple gears 26, which can lock the multiple gears 26 and prevent the threaded sleeves 24 from being displaced by external vibrations. Therefore, water leakage can be avoided, and the two end caps 11 can be quickly installed and removed, which is convenient for the staff to replace the ceramic membrane filter element inside, thus improving the efficiency of water treatment.

[0026] Example 1

[0027] like Figure 2 and Figure 4 As shown, in this embodiment, both ends of the outer wall of the main body 1 are fixedly connected with a plurality of fixing blocks 12 that pass through and are fixed to the threaded sleeves 24 at corresponding positions, and the outer wall of the threaded sleeves 24 is fixedly connected with hexagonal blocks 25.

[0028] In this embodiment, by placing a wrench on one of the hexagonal blocks 25 and then turning the wrench, the threaded sleeve 24 at the corresponding position can be rotated, which facilitates the installation and removal of the two end caps 11 by the workers.

[0029] Example 2

[0030] like Figure 5-7 As shown, in this embodiment, a sliding rod 13 is fixedly connected between two fixed blocks 12 at opposite positions. A connecting ring 31 that slides through multiple sliding rods 13 is rotatably connected to the inner wall of the gear ring 1 3. A limiting ring 33 is fixedly connected to the inner wall of the connecting ring 31. Multiple cylindrical grooves are opened at equal angles in an annular shape on the outer wall of the sliding rod 13 corresponding to the gear 26. Spring steel balls 14 are fixedly connected in the cylindrical grooves. Multiple hemispherical grooves 32 that engage with the spring steel balls 14 at corresponding positions are opened at equal angles in an annular shape on the inner wall of the connection between the connecting ring 31 and the sliding rod 13. A gear ring 4 slides through multiple sliding rods 13. Multiple hemispherical grooves 2 that engage with the spring steel balls 14 at corresponding positions are opened at equal angles in an annular shape on the inner wall of the connection between the gear ring 4 and the sliding rod 13. A limiting ring 41 is fixedly connected to the inner wall of the gear ring 4. The width of the limiting ring 33 is greater than the width of the gear ring 1 3, and the width of the limiting ring 41 is greater than the width of the gear ring 4.

[0031] In this embodiment, by moving the gear ring 3 upward and engaging it with multiple gears 26, the spring steel ball 14 is engaged with multiple hemispherical grooves 32, which fixes the gear ring 3 between multiple slide rods 13. This allows the rotating threaded sleeve 24 to drive other threaded sleeves 24 to rotate through the action of the gears 26 and the gear ring 3. By moving the gear ring 3 downward and disengaging it from the multiple gears 26, and then moving the gear ring 4 downward and engaging it with the multiple gears 26, the hemispherical groove in the gear ring 4 engages with the spring steel ball 14 at the corresponding position, thus fixing the gear ring 4 between multiple slide rods 13. This prevents the multiple threaded sleeves 24 from being displaced by external vibrations.

[0032] Example 3

[0033] like Figure 2 As shown, in this embodiment, the sides of the flanges at both ends of the main body 1 are fixedly connected with multiple pins 15 at equal angles, and the side of the flange at the end cap 11 is provided with a groove 16 for inserting into the pin 15 at the corresponding position.

[0034] In this embodiment, the end cap 11 can be accurately positioned by inserting the pin 15 into the corresponding groove 16, and the multiple pins 15 facilitate the positioning and installation of the sealing gasket between the end cap 11 and the main body 1.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PPH pressure-resistant membrane shell structure, characterized in that, The main body (1) is detachably connected to end caps (11) at both ends. A fixing mechanism (2) for fixing the end caps (11) to the end of the main body (1) is provided between the two end caps (11). The fixing mechanism (2) includes two fixing rings (21) that are respectively sleeved with the end caps (11) at corresponding positions. Multiple connecting blocks (22) are fixedly connected to the outer wall of the fixing rings (21) at equal angles. Screws (23) are fixedly connected to the opposite side of the two connecting blocks (22) at opposite positions. Threaded sleeves (24) are screwed between the outer walls of the two screws (23) at opposite positions. Gears (26) are fixedly connected to the outer wall of the threaded sleeves (24). A gear ring (3) that meshes with multiple gears (26) is slidably connected to the outer wall of the main body (1). A gear ring (4) that meshes with multiple gears (26) is slidably connected to the outer wall of the main body (1).

2. The PPH pressure-resistant membrane shell structure according to claim 1, characterized in that, Both ends of the outer wall of the main body (1) are fixedly connected with multiple fixing blocks (12) that are fixed through the threaded sleeves (24) at the corresponding positions.

3. The PPH pressure-resistant membrane shell structure according to claim 2, characterized in that, The outer wall of the threaded sleeve (24) is fixedly connected with a hexagonal block (25).

4. The PPH pressure-resistant membrane shell structure according to claim 3, characterized in that, A sliding rod (13) is fixedly connected between two fixed blocks (12) at relative positions. A connecting ring (31) that slides through multiple sliding rods (13) is rotatably connected to the inner wall of the gear ring (3). A limit ring (33) is fixedly connected to the inner wall of the connecting ring (31). Multiple cylindrical grooves are opened at equal angles in an annular shape on the outer wall of the sliding rod (13) corresponding to the gear (26). Spring steel balls (14) are fixedly connected in the cylindrical grooves. Multiple hemispherical grooves (32) that engage with the spring steel balls (14) at corresponding positions are opened at equal angles in an annular shape on the inner wall of the connection between the connecting ring (31) and the sliding rod (13).

5. The PPH pressure-resistant membrane shell structure according to claim 4, characterized in that, The gear ring 2 (4) slides through multiple sliding rods (13). The inner wall of the connection between the gear ring 2 (4) and the sliding rods (13) is provided with multiple hemispherical grooves at equal angles that engage with spring steel balls (14) at corresponding positions. The inner wall of the gear ring 2 (4) is fixedly connected with a limit ring 2 (41).

6. The PPH pressure-resistant membrane shell structure according to claim 5, characterized in that, The width of the first limiting ring (33) is greater than the width of the first gear ring (3), and the width of the second limiting ring (41) is greater than the width of the second gear ring (4).

7. The PPH pressure-resistant membrane shell structure according to claim 6, characterized in that, The flange rings at both ends of the main body (1) are fixedly connected with multiple pins (15) at equal angles in a ring. The flange ring side at the end cap (11) is provided with a groove (16) for inserting the pin (15) at the corresponding position.

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