Plastic filter shell with flame-retardant reinforcing ribs for sewage treatment filter system

Abstract

The utility model discloses a sewage treatment filtration system plastic filter shell with flame-retardant reinforcing ribs, which comprises a plastic shell, a plurality of mounting strips are fixedly arranged on the surface of the plastic shell, the mounting strips are T-shaped, threaded holes are formed in one sides, far away from the plastic shell, of the mounting strips, and the mounting strips are provided with flame-retardant reinforcing ribs. The number of the threaded holes is three, a first longitudinal reinforcing rib is slidably connected to the side, away from the plastic shell, of the mounting strip, a clamping groove is formed in the side, close to the mounting strip, of the first longitudinal reinforcing rib, the clamping groove is matched with the mounting strip, and a counterbore is formed in the middle of the first longitudinal reinforcing rib. The number of the counterbores corresponds to the number of the threaded holes, and fastening screws are arranged in the counterbores. According to the utility model, the fastening screw is taken out from the threaded hole, and the longitudinal reinforcing rib I slides downwards, so that the longitudinal reinforcing rib I and the transverse reinforcing rib II can be separated from the mounting strip, thereby facilitating replacement and ensuring the protection effect and the flame-retardant effect of the plastic shell.

Description

Technical Field

[0001] This utility model relates to the field of plastic filter housing technology, specifically a plastic filter housing for a sewage treatment filtration system with flame-retardant reinforcing ribs. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, healthcare, and catering, and is increasingly becoming a part of everyday life for ordinary people. In the wastewater treatment process, the filtration system is an essential component. To ensure the structural strength and flame-retardant effect of the plastic filter housing, flame-retardant reinforcing ribs are installed on the inner and outer walls of the plastic filter housing.

[0003] During production, the plastic filter shell and flame-retardant reinforcing ribs are usually molded as a whole. However, during use, the plastic filter shell is prone to friction with external equipment, which reduces the thickness of the flame-retardant reinforcing ribs. Furthermore, the flame-retardant reinforcing ribs are consumed after exposure to open flame and cannot be replaced, thus reducing the utilization rate of the plastic filter shell. Utility Model Content

[0004] The purpose of this invention is to provide a plastic filter housing for a wastewater treatment filtration system with flame-retardant reinforcing ribs, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic filter housing for a sewage treatment filtration system with flame-retardant reinforcing ribs, comprising a plastic outer shell, a plurality of mounting strips fixedly disposed on the surface of the plastic outer shell, the plurality of mounting strips being T-shaped, a threaded hole being provided on the side of the mounting strip away from the plastic outer shell, the number of the threaded holes being three, a longitudinal reinforcing rib being slidably connected to the side of the mounting strip away from the plastic outer shell, a groove being provided on the side of the longitudinal reinforcing rib near the mounting strip, the groove being adapted to the mounting strip, a countersunk hole being provided in the middle of the longitudinal reinforcing rib, the number of countersunk holes corresponding to the number of threaded holes, a fastening screw being disposed inside the countersunk hole, the fastening screw passing through the countersunk hole and threadedly connected inside the threaded hole.

[0006] As a further preferred embodiment of this technical solution, the plastic outer shell is provided with an inner liner, one side of the inner liner is fixedly connected to a liquid outlet, and the bottom of the inner liner is fixedly connected to a liquid inlet.

[0007] As a further preferred embodiment of this technical solution, the surface of the inner liner is provided with a first transverse reinforcing rib and a second longitudinal reinforcing rib, and the number of the first transverse reinforcing rib and the second longitudinal reinforcing rib is provided in multiples, and the multiple first transverse reinforcing ribs and the second longitudinal reinforcing ribs are fixedly connected to form a grid structure.

[0008] As a further preferred embodiment of this technical solution, a flange is fixedly connected to the bottom of the plastic shell, a flange is fixedly connected to the side of the plastic shell near the liquid outlet, the flange and flange are located outside the liquid inlet and liquid outlet respectively, and a dome is fixedly connected to the top of the plastic shell.

[0009] As a further preferred embodiment of this technical solution, a groove is provided on the side of the longitudinal reinforcing rib away from the mounting strip, and a transverse reinforcing rib and a transverse reinforcing rib are provided on the side of the longitudinal reinforcing rib near the groove. A groove is provided inside the transverse reinforcing rib and the transverse reinforcing rib. The groove and the groove are engaged.

[0010] As a further preferred embodiment of this technical solution, a slot is provided on one side of the third transverse reinforcing rib, and a positioning groove is provided on the side of the slot away from the plastic shell.

[0011] As a further preferred embodiment of this technical solution, a plug plate is fixedly connected to the side of the transverse reinforcing rib away from the slot. The plug plate is located inside the slot, and an installation groove is provided inside the plug plate. A positioning block is slidably connected inside the installation groove. The positioning block is engaged inside the positioning groove, and a connecting spring is fixedly connected between the positioning block and the installation groove.

[0012] This utility model provides a plastic filter housing for a wastewater treatment filtration system with flame-retardant reinforcing ribs, which has the following beneficial effects:

[0013] (1) This utility model installs the second transverse reinforcing rib on the surface of multiple first longitudinal reinforcing ribs and makes the second groove engage inside the first groove. The first longitudinal reinforcing rib is installed on the mounting strip and slids so that the countersunk hole and the threaded hole are aligned. The fastening screw is screwed into the threaded hole, thereby fixing the first longitudinal reinforcing rib and the second transverse reinforcing rib to the plastic shell. When the reinforcing rib needs to be replaced, the fastening screw is removed from the threaded hole and the first longitudinal reinforcing rib is slid down to disengage the first longitudinal reinforcing rib and the second transverse reinforcing rib from the mounting strip for easy replacement, ensuring the protective and flame-retardant effects of the plastic shell.

[0014] (2) This utility model incorporates a grid structure formed by interlacing the first transverse reinforcing rib and the second longitudinal reinforcing rib into the inside of the plastic shell, thereby further enhancing the overall strength and rigidity of the plastic shell during use and preventing cracking or deformation when subjected to large external forces. Furthermore, flame retardants are added to the first transverse reinforcing rib, the second longitudinal reinforcing rib, and the plastic shell. When exposed to open flame, the flame retardants can effectively suppress the spread of flame. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the inner liner structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the mounting strip and threaded hole structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the longitudinal reinforcing rib one and the transverse reinforcing rib two of this utility model;

[0019] Figure 5 This is a schematic diagram of the three-section structure of the transverse reinforcing rib of this utility model.

[0020] In the diagram: 1. Plastic outer shell; 2. Mounting strip; 3. Threaded hole; 4. Longitudinal reinforcing rib one; 5. Slot; 6. Countersunk hole; 7. Fastening screw; 8. Inner liner; 9. Liquid outlet; 10. Liquid inlet; 11. Transverse reinforcing rib one; 12. Longitudinal reinforcing rib two; 13. Flange one; 14. Flange two; 15. Dome; 16. Groove one; 17. Transverse reinforcing rib two; 18. Transverse reinforcing rib three; 19. Groove two; 20. Slot; 21. Positioning groove; 22. Insert plate; 23. Mounting groove; 24. Connecting spring; 25. Positioning block. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1 to 5 As shown in this embodiment, a plastic filter housing for a sewage treatment filtration system with flame-retardant reinforcing ribs includes a plastic shell 1. Multiple mounting strips 2 are fixedly disposed on the surface of the plastic shell 1. The mounting strips 2 are T-shaped. Threaded holes 3 are provided on the side of the mounting strips 2 away from the plastic shell 1. There are three threaded holes 3. A longitudinal reinforcing rib 4 is slidably connected to the side of the mounting strips 2 away from the plastic shell 1. A groove 5 is provided on the side of the longitudinal reinforcing rib 4 near the mounting strips 2. The groove 5 is adapted to the mounting strips 2. A countersunk hole 6 is provided in the middle of the longitudinal reinforcing rib 4. The number of countersunk holes 6 corresponds to the number of threaded holes 3. A fastening screw 7 is disposed inside the countersunk hole 6. The fastening screw 7 passes through the countersunk hole 6 and is threaded into the inside of the threaded hole 3.

[0023] Transverse reinforcing rib 17 is installed on the surface of multiple longitudinal reinforcing ribs 4, and groove 19 is engaged inside groove 16. Longitudinal reinforcing rib 4 is installed on mounting strip 2 and slid to align countersunk hole 6 and threaded hole 3. Fastening screw 7 is screwed into threaded hole 3, thereby fixing longitudinal reinforcing rib 4 and transverse reinforcing rib 17 to plastic shell 1. When the reinforcing rib needs to be replaced, fastening screw 7 is removed from threaded hole 3, and longitudinal reinforcing rib 4 is slid downward to detach longitudinal reinforcing rib 4 and transverse reinforcing rib 17 from mounting strip 2 for easy replacement, ensuring the protective and flame-retardant effects of plastic shell 1.

[0024] The plastic outer shell 1 has an inner liner 8 inside. An outlet 9 is fixedly connected to one side of the inner liner 8, and an inlet 10 is fixedly connected to the bottom of the inner liner 8.

[0025] The outer plastic shell 1, inner liner 8, and inner and outer reinforcing ribs are all made of polyvinyl chloride as the main plastic material, which ensures the chemical stability, corrosion resistance and certain mechanical strength of the filter shell. Flame retardants are added to it. When exposed to open flame, the flame retardant can produce inert gas when it burns, diluting the concentration of flammable gas and promoting the formation of a carbon layer on the material surface, which plays a role in heat insulation and oxygen isolation, thereby effectively inhibiting the spread of flame.

[0026] The surface of the inner liner 8 is provided with transverse reinforcing ribs 11 and longitudinal reinforcing ribs 12. There are multiple transverse reinforcing ribs 11 and longitudinal reinforcing ribs 12. Multiple transverse reinforcing ribs 11 and longitudinal reinforcing ribs 12 are fixedly connected to form a grid structure.

[0027] By inserting a mesh-like structure formed by interlacing transverse reinforcing ribs 11 and longitudinal reinforcing ribs 12 into the interior of the plastic shell 1, the overall strength and rigidity of the plastic shell 1 are further enhanced during use, preventing cracking or deformation when subjected to large external forces.

[0028] A flange 13 is fixedly connected to the bottom of the plastic shell 1, and a flange 2 14 is fixedly connected to the side of the plastic shell 1 near the liquid outlet 9. The flange 13 and flange 2 14 are located outside the liquid inlet 10 and the liquid outlet 9, respectively. A dome 15 is fixedly connected to the top of the plastic shell 1.

[0029] By setting flange 13 and flange 14 on the plastic shell 1, it is convenient to connect with components such as water inlet pipe, water outlet pipe and filter device, and the top is provided with dome 15, so that stress can be evenly distributed and the stability of the structure can be improved.

[0030] The longitudinal reinforcing rib 14 has a groove 16 on the side away from the mounting strip 2. The longitudinal reinforcing rib 14 has a transverse reinforcing rib 2 17 and a transverse reinforcing rib 3 18 on the side near the groove 16. The transverse reinforcing rib 2 17 and the transverse reinforcing rib 3 18 both have a groove 2 19 inside, and the groove 2 19 and the groove 16 engage.

[0031] A slot 20 is provided on one side of the transverse reinforcing rib 3 18, and a positioning groove 21 is provided on the side of the slot 20 away from the plastic shell 1.

[0032] A plate 22 is fixedly connected to the side of the transverse reinforcing rib 3 18 away from the slot 20. The plate 22 is located inside the slot 20. An installation groove 23 is provided inside the plate 22. A positioning block 25 is slidably connected inside the installation groove 23. The positioning block 25 is engaged inside the positioning groove 21. A connecting spring 24 is fixedly connected between the positioning block 25 and the installation groove 23.

[0033] The transverse reinforcing rib 3 18 is engaged with the longitudinal reinforcing rib 1 4 through the groove 2 19. The insert plate 22 is inserted into the slot 20. The positioning block 25 slides in the mounting groove 23. The connecting spring 24 is compressed and contracted. After moving a certain depth, the positioning block 25 corresponds to the positioning groove 21 and is engaged in the positioning groove 21 under the elastic force of the connecting spring 24, thereby fixing both ends of the transverse reinforcing rib 3 18 to complete the installation of the upper reinforcing rib of the flange 2 14.

[0034] This utility model provides a plastic filter housing for a sewage treatment filtration system with flame-retardant reinforcing ribs. The specific working principle is as follows:

[0035] In use, the interwoven mesh structure formed by the transverse reinforcing ribs 11 and 12 longitudinal reinforcing ribs 12 is placed inside the plastic shell 1, and the inlet 10 is inserted into the flange 13. The outlet 9 is fixed to the inner liner 8 using adhesive, and the inlet 10 and outlet 9 are fixed inside the flange 13 and flange 14 respectively. The dome 15 is used to seal the plastic shell 1, thus completing the installation of the inner liner 8 and the plastic shell 1. The transverse reinforcing ribs 17 are installed on the surface of the multiple longitudinal reinforcing ribs 4, and the groove 19 is engaged inside the groove 16. The longitudinal reinforcing ribs 14 are installed on the mounting strip 2 and slid to align the countersunk hole 6 and the threaded hole 3. The fastening screw 7 is screwed into the threaded hole 3, thus connecting the longitudinal reinforcing ribs 11 and 12 below the flange 14. 7 is fixed to the plastic shell 1. For the reinforcing ribs above the flange 2 14, the transverse reinforcing rib 3 18 can be engaged with the longitudinal reinforcing rib 1 4 through the groove 2 19. Insert the insert plate 22 into the slot 20. The positioning block 25 slides in the mounting groove 23. The connecting spring 24 is squeezed and contracted. After moving a certain depth, the positioning block 25 corresponds to the positioning groove 21 and is engaged in the positioning groove 21 under the elastic force of the connecting spring 24, thereby fixing the two ends of the transverse reinforcing rib 3 18. When the outer wall reinforcing rib is worn or damaged, press the positioning block 25 inward to disengage the insert plate 22 from the slot 20 and remove the transverse reinforcing rib 3 18. Take the fastening screw 7 out of the threaded hole 3 and slide the longitudinal reinforcing rib 1 4 downward to disengage the longitudinal reinforcing rib 1 4 and the transverse reinforcing rib 2 17 from the mounting strip 2 for easy replacement.

[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 plastic filter housing for a sewage treatment filter system with fire-retardant stiffening ribs, comprising a plastic outer shell (1), characterized in that: Multiple mounting strips (2) are fixedly provided on the surface of the plastic shell (1). The mounting strips (2) are T-shaped. Threaded holes (3) are provided on the side of the mounting strip (2) away from the plastic shell (1). There are three threaded holes (3). A longitudinal reinforcing rib (4) is slidably connected to the side of the mounting strip (2) away from the plastic shell (1). A slot (5) is provided on the side of the longitudinal reinforcing rib (4) near the mounting strip (2). The slot (5) is compatible with the mounting strip (2). A countersunk hole (6) is provided in the middle of the longitudinal reinforcing rib (4). The number of countersunk holes (6) corresponds to the number of threaded holes (3). A fastening screw (7) is provided inside the countersunk hole (6). The fastening screw (7) passes through the countersunk hole (6) and is threaded into the inside of the threaded hole (3).

2. A plastic filter housing for a sewage treatment filter system with fire retardant stiffening ribs as claimed in claim 1 characterised in that: The plastic shell (1) is provided with an inner liner (8), and an outlet (9) is fixedly connected to one side of the inner liner (8), and an inlet (10) is fixedly connected to the bottom of the inner liner (8).

3. A plastic filter housing for a sewage treatment filter system with fire retardant stiffening ribs as claimed in claim 2, characterised in that: The surface of the inner liner (8) is provided with a first transverse reinforcing rib (11) and a second longitudinal reinforcing rib (12). The number of the first transverse reinforcing rib (11) and the second longitudinal reinforcing rib (12) is multiple. The multiple first transverse reinforcing ribs (11) and second longitudinal reinforcing ribs (12) are fixedly connected to form a grid structure.

4. A plastic filter housing for a sewage treatment filter system with fire retardant stiffening ribs as claimed in claim 1 characterised in that: The bottom of the plastic shell (1) is fixedly connected to a flange one (13), and the side of the plastic shell (1) near the liquid outlet (9) is fixedly connected to a flange two (14). The flange one (13) and the flange two (14) are located outside the liquid inlet (10) and the liquid outlet (9) respectively. The top of the plastic shell (1) is fixedly connected to a dome (15).

5. A plastic filter housing for a sewage treatment filter system with fire retardant stiffening ribs as claimed in claim 1 characterised in that: The longitudinal reinforcing rib 1 (4) has a groove 1 (16) on the side away from the mounting strip (2). The longitudinal reinforcing rib 1 (4) has a transverse reinforcing rib 2 (17) and a transverse reinforcing rib 3 (18) on the side near the groove 1 (16). The transverse reinforcing rib 2 (17) and the transverse reinforcing rib 3 (18) each have a groove 2 (19) inside. The groove 2 (19) and the groove 1 (16) engage.

6. A plastic filter housing for a sewage treatment filter system with fire retardant stiffening ribs as claimed in claim 5, characterised in that: A slot (20) is provided on one side of the transverse reinforcing rib (18), and a positioning groove (21) is provided on the side of the slot (20) away from the plastic shell (1).

7. A plastic filter housing for a sewage treatment filter system with fire retardant stiffening ribs as claimed in claim 5 characterised in that: A plug plate (22) is fixedly connected to the side of the transverse reinforcing rib (18) away from the slot (20). The plug plate (22) is located inside the slot (20). An installation groove (23) is provided inside the plug plate (22). A positioning block (25) is slidably connected inside the installation groove (23). The positioning block (25) is engaged inside the positioning groove (21). A connecting spring (24) is fixedly connected between the positioning block (25) and the installation groove (23).

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