Multiple filtering device

Abstract

The utility model discloses a multiple filtering device which comprises an outer cylinder and is characterized by further comprising an inner cylinder, an upper cover and a lower cover, the upper cover and the lower cover are respectively fixed at the upper end and the lower end of the outer cylinder in a threaded connection mode, a first sealing ring is installed between the upper cover and the upper end of the outer cylinder, and the inner cylinder is fixed between the upper cover and the lower cover. The inner cylinder is contained in the outer cylinder, and a vertically-through threaded opening is formed in the center of the upper cover and communicated with the interior of the inner cylinder. According to the utility model, multiple filtering of a water source is realized through a multiple filtering structure, and the purity and the safety of the filtered water source are effectively improved; due to the design of a threaded opening in the center of the upper cover, the device can be conveniently connected with a joint and a pipe through threads, can be conveniently connected into various water systems, for example, can be used when a pump body pumps a water source, can also be used as a filter element in water purification equipment, and is good in universality.

Description

Technical Field

[0001] This utility model relates to a multi-stage filtration device. Background Technology

[0002] Filtration devices are primarily used to remove impurities from water, resulting in clean water. The filtration capacity of a filtration device determines the safety of the filtered water. Many common filtration devices have complex structures, insufficient filtration capacity, and limited versatility, making them unsuitable for various applications. Therefore, there is a need to develop a filtration device that is highly versatile, simple in structure, and possesses strong filtration capabilities. Utility Model Content

[0003] In view of the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a multi-stage filtration device.

[0004] The technical solution of this utility model is: a multi-stage filtration device, which includes an outer cylinder, an inner cylinder, an upper cover, and a lower cover. The upper cover and the lower cover are fixed to the upper and lower ends of the outer cylinder respectively by means of threaded connection. A first sealing ring is installed between the upper cover and the upper end of the outer cylinder, and a second sealing ring is installed between the lower cover and the lower end of the outer cylinder. The inner cylinder is fixed between the upper cover and the lower cover. A third sealing ring is installed between the upper end of the inner cylinder and the upper cover, and a fourth sealing ring is installed between the lower end of the inner cylinder and the lower cover. The inner cylinder is housed inside the outer cylinder. The center of the upper cover has a threaded opening that runs vertically through the inner cylinder. The threaded opening communicates with the inside of the inner cylinder.

[0005] Furthermore, the upper and lower ends of the outer cylinder have a first threaded portion and a second threaded portion, respectively. The upper cover has a first threaded hole for the first threaded portion to be screwed into, and the lower cover has a second threaded hole for the second threaded portion to be screwed into.

[0006] Furthermore, the outer cylinder consists of an outer frame and an outer filter screen fixed on the outer frame, while the inner cylinder consists of an inner frame and an inner filter screen fixed on the inner frame.

[0007] Furthermore, the upper cover has a first slot with its opening facing downwards, into which the upper end of the inner cylinder is inserted, and a third sealing ring is inserted between the inner wall of the first slot and the outer wall of the upper end of the inner cylinder; the lower cover has a second slot with its opening facing upwards, into which the lower end of the inner cylinder is inserted, and a fourth sealing ring is inserted between the inner wall of the second slot and the outer wall of the lower end of the inner cylinder.

[0008] Furthermore, a gap is left between the inner cylinder and the outer cylinder, which is used to place filter material. The inside of the inner cylinder is used to place filter material.

[0009] Furthermore, the threaded port connects to the connector via a threaded connection, and the connector connects to the pipe.

[0010] The beneficial effects of applying the multi-filtration device provided by this utility model are: the multi-filtration structure realizes multiple filtration of water source, effectively improving the purity and safety of the filtered water source; the threaded port design in the center of the top cover allows the device to be easily connected to various water systems through threaded joints and pipes, such as when it is used for pumping water source, and it can also be used as a filter element in water purification equipment, with good versatility. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the present invention;

[0013] Figure 3 This is a cross-sectional view of the present invention after separation.

[0014] As shown in the figure: 1—outer cylinder, 11—first threaded part, 12—second threaded part, 13—outer frame, 14—outer filter screen, 2—inner cylinder, 21—inner frame, 22—inner filter screen, 3—upper cover, 31—threaded opening, 32—first threaded hole, 33—first slot, 4—lower cover, 41—second threaded hole, 42—second slot, 5—first sealing ring, 6—second sealing ring, 7—third sealing ring, 8—fourth sealing ring, 9—gap. Detailed Implementation

[0015] To provide a more intuitive and complete understanding of the technical solution of this utility model, the following non-limiting features are described in conjunction with the accompanying drawings:

[0016] like Figure 1 — Figure 3 As shown, the multi-stage filtration device includes an outer cylinder 1, an inner cylinder 2, an upper cover 3, and a lower cover 4. The upper cover 3 and the lower cover 4 are fixed to the upper and lower ends of the outer cylinder 1 respectively by threaded connection. A first sealing ring 5 is installed between the upper cover 3 and the upper end of the outer cylinder 1, and a second sealing ring 6 is installed between the lower cover 4 and the lower end of the outer cylinder 1. The inner cylinder 2 is fixed between the upper cover 3 and the lower cover 4. A third sealing ring 7 is installed between the upper end of the inner cylinder 2 and the upper cover 3, and a fourth sealing ring 8 is installed between the lower end of the inner cylinder 2 and the lower cover 4. The inner cylinder 2 is housed inside the outer cylinder 1. The upper cover 3 has a threaded opening 31 that runs vertically through the center, and the threaded opening 31 communicates with the interior of the inner cylinder 2.

[0017] like Figure 2 , Figure 3 As shown, for easy disassembly and assembly, the upper and lower ends of the outer cylinder 1 are respectively provided with a first threaded part 11 and a second threaded part 12. The upper cover 3 has a first threaded hole 32 for the first threaded part 11 to be screwed in, and the lower cover 4 has a second threaded hole 41 for the second threaded part 12 to be screwed in.

[0018] The outer cylinder 1 consists of an outer frame 13 and an outer filter screen 14 fixed on the outer frame 13, and the inner cylinder 2 consists of an inner frame 21 and an inner filter screen 22 fixed on the inner frame 21. Both the outer frame 13 and the inner frame 21 are hollow designs. During operation, water first enters from the outer cylinder 1, then enters the inner cylinder 2, and finally reaches the threaded port 31.

[0019] like Figure 2 , Figure 3 As shown, in order to securely fix the inner cylinder 2, the upper cover 3 has a first groove 33 with the opening facing downwards, into which the upper end of the inner cylinder 2 is inserted, and the third sealing ring 7 is inserted between the inner wall of the first groove 33 and the outer wall of the upper end of the inner cylinder 2; the lower cover 4 has a second groove 42 with the opening facing upwards, into which the lower end of the inner cylinder 2 is inserted, and the fourth sealing ring 8 is inserted between the inner wall of the second groove 42 and the outer wall of the lower end of the inner cylinder 2.

[0020] A gap 9 is left between the inner cylinder 2 and the outer cylinder 1. The gap 9 is used to place filter materials. The inside of the inner cylinder 2 is used to place filter materials, such as maifan stone, so as to improve the filtration effect.

[0021] The threaded port 31 connects to the connector (not shown in the figure) via a threaded connection, and the connector connects to the pipe (not shown in the figure).

[0022] The multi-filtration device provided by this utility model achieves multiple filtration of water source through a multi-filtration structure, effectively improving the purity and safety of the filtered water source; the threaded port 31 in the center of the top cover 3 allows the device to be easily connected to various water systems through threaded joints and pipes, such as when it is used for pumping water source, and it can also be used as a filter element in water purification equipment, with good versatility.

[0023] Of course, the above are only preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any simple modifications and equivalent structural changes made based on the contents of the present utility model specification and drawings should also be included within the patent protection scope of the present utility model.

Claims

1. A multiple filtration device comprising an outer cylinder, characterised in that: It also includes the inner cylinder, upper cover and lower cover, upper cover, lower cover by means of threaded connection respectively fixed in the upper end and lower end of the outer cylinder, upper cover and the upper end of the outer cylinder between the installation of the first sealing ring, lower cover and the lower end of the outer cylinder between the installation of the second sealing ring, the inner cylinder is fixed between the upper cover and the lower cover, the upper end of the inner cylinder and the upper cover between the installation of the third sealing ring, the lower end of the inner cylinder and the lower cover between the installation of the fourth sealing ring, the inner cylinder is contained in the outer cylinder, the upper cover center has a upper and lower through thread port, thread port and the inner cylinder inside communication.

2. The multiple filtration device of claim 1, wherein: The upper and lower ends of the outer cylinder have a first threaded part and a second threaded part, respectively, the upper cover has a first threaded hole for the first threaded part to screw into, and the lower cover has a second threaded hole for the second threaded part to screw into.

3. The multiple filtration device of claim 1, wherein: The outer cylinder is composed of an outer frame and an outer filter screen fixed on the outer frame, and the inner cylinder is composed of an inner frame and an inner filter screen fixed on the inner frame.

4. The multiple filtration device of claim 1, wherein: The upper cover has a first clamping groove with an opening downward, which is used for clamping the upper end of the inner cylinder, and the third sealing ring is clamped between the inner wall of the first clamping groove and the outer wall of the upper end of the inner cylinder; the lower cover has a second clamping groove with an opening upward, which is used for clamping the lower end of the inner cylinder, and the fourth sealing ring is clamped between the inner wall of the second clamping groove and the outer wall of the lower end of the inner cylinder.

5. The multiple filtration device of claim 1, wherein: The inner cylinder and the outer cylinder have a gap between them, and the gap is used to place the filter material, and the inner part of the inner cylinder is used to place the filter material.

6. The multiple filtration device of claim 1, wherein: The thread port is connected to the connector by means of threaded connection, and the connector is connected to the pipe.

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