Universal pre-filter convenient to install

Abstract

The utility model relates to a universal pre-filter convenient to install, which comprises an outer cylinder, a connecting pipe arranged on the outer cylinder, a water inlet end arranged on the connecting pipe, a water outlet end arranged on the connecting pipe and a pollution discharge assembly arranged on the outer cylinder, the connecting pipe is positioned on one side of the outer cylinder, and the water inlet end and the water outlet end are respectively positioned at two ends of the connecting pipe; the water inlet end is provided with a water inlet, and the water outlet end is provided with a water outlet; a connector is arranged on the side, facing the outer cylinder, of the connecting pipe and located between the water inlet end and the water outlet end, a connecting hole is formed in the side, facing the connecting pipe, of the outer cylinder, the connector is rotationally connected into the connecting hole, a rotating protrusion is arranged on the connector, and a rotating groove for containing the rotating protrusion is formed in the inner wall of the connecting hole. The water inlet end and the water outlet end are each provided with a connecting piece, and each connecting piece comprises a connecting block connected to the connecting pipe in a threaded mode and a connecting water pipe arranged on the connecting block. The pre-filter has the effect that the pre-filter is convenient to mount, and the direction of the connecting pipeline is convenient to adjust.

Description

Technical Field

[0001] This application relates to the field of filters, and particularly to a universal pre-filter that is easy to install. Background Art

[0002] A pre-filter is the first stage of coarse filtration equipment for the whole-house water supply, used to filter out large particulate impurities, rust, sediment, insect eggs and other harmful substances in water. It is a primary pre-processor that can protect the water-related equipment in a family or building. Generally installed at the front end of the pipeline, it can play a good protective role for downstream pipelines, water purifiers, water heaters, washing machines, faucets, showers and other water-related equipment.

[0003] The pre-filter is generally installed at the front end of the pipeline system or can also be installed near the water-using equipment. The shape of the common pre-filter is fixed (straight-through pre-filter). If the pipeline environment at the installation location is relatively complex, the straight-through pre-filter cannot be installed on the pipeline. Therefore, a pre-filter is needed to freely adjust the direction of the connecting pipeline according to different pipeline environments and improve the installation efficiency at the same time. Utility Model Content

[0004] For the installation of the pre-filter, this application provides a universal pre-filter that is easy to install.

[0005] A universal pre-filter that is easy to install provided by this application adopts the following technical solutions:

[0006] A universal pre-filter that is easy to install includes an outer cylinder, a connecting pipe arranged on the outer cylinder, a water inlet end arranged on the connecting pipe, a water outlet end arranged on the connecting pipe, and a sewage discharge component arranged on the outer cylinder. The connecting pipe is located on one side of the outer cylinder. The water inlet end and the water outlet end are respectively located at both ends of the connecting pipe. The water inlet end is provided with a water inlet, and the water outlet end is provided with a water outlet. A connecting head is arranged on the side of the connecting pipe facing the outer cylinder. The connecting head is located between the water inlet end and the water outlet end. A connecting hole is arranged on the side of the outer cylinder facing the connecting pipe. The connecting head is rotatably connected in the connecting hole. A rotating protrusion is arranged on the connecting head, and a rotating groove for accommodating the rotating protrusion is arranged on the inner wall of the connecting hole. Both the water inlet end and the water outlet end are provided with connecting pieces. The connecting piece includes a connecting block threadedly connected to the connecting pipe and a connecting water pipe arranged on the connecting block.

[0007] By adopting the above technical solution, the outer cylinder is used for filtering, and the connecting pipe is used to connect to the pipes inside the house. During installation, the orientation of the connecting pipe is adjusted according to the orientation of the pipes. Since the connecting pipe is rotatably connected to the outer cylinder, the adjustment is relatively convenient. At the same time, the cooperation of the rotating protrusion and the rotating groove makes the rotation stable, and further improves the tightness at the rotating part. Then, the connecting water pipe is connected to the pipes inside the house, and corresponding type sealing rings are placed at the connection. Finally, the connecting block is tightened on the water inlet end and the water outlet end of the connecting pipe to complete the installation; this pre-filter is easy to install, has high installation efficiency, and can be applied to various pipe conditions.

[0008] Optionally, one end of the connecting water pipes close to each other is provided with a limiting convex ring, and one end of the connecting block away from each other is provided with an installation protrusion. The installation protrusion abuts against the limiting convex ring to prevent the connecting water pipes from moving away from each other; the connecting water pipes are rotatably connected to the connecting block.

[0009] By adopting the above technical solution, the limiting convex ring and the installation protrusion are arranged in cooperation to limit the connecting water pipes. The connecting water pipes and the connecting block rotate relative to each other. During installation, just rotate the connecting block to fix the connecting block on the connecting pipe, which is relatively convenient.

[0010] Optionally, a first sealing ring is arranged inside the connecting block, and the first sealing ring abuts against the limiting convex ring and the end of the corresponding connecting pipe.

[0011] By adopting the above technical solution, the first sealing ring is arranged to increase the connection tightness between the end of the connecting pipe (the end of the water inlet end or the water outlet end) and the connecting block, and prevent water leakage at the connection.

[0012] Optionally, a second sealing ring is arranged inside the connecting block. The second sealing ring is located between the limiting convex ring and the installation protrusion, and both sides of the second sealing ring abut against the limiting convex ring and the installation protrusion respectively.

[0013] By adopting the above technical solution, the second sealing ring is arranged to increase the tightness at the connection between the connecting block and the connecting water pipes, and prevent water leakage at the connection.

[0014] Optionally, installation threads are provided on both the water inlet end and the water outlet end, and the installation threads are used for connecting the connecting block.

[0015] By adopting the above technical solution, the installation threads are arranged to facilitate the installation of the connecting block. During installation, just turn the connecting block, which is relatively convenient. And the threaded connection method can increase the connection tightness between the water inlet end and the water outlet end and the connecting block, and prevent water from leaking out at the connection between the connecting pipe and the connecting block.

[0016] Optionally, the outer cylinder includes a cylinder body, a cover body, and a filter element. A filter chamber is provided inside the cylinder body, the filter element is installed in the filter chamber, the cover body is threadedly connected to the cylinder body, and the cover body is located at the bottom end of the cylinder body; a connection pipe is provided with a connection pipeline, the connection pipeline connects the filter chamber and the water outlet, and an inlet is provided on the cylinder body, and the inlet communicates the water inlet and the filter chamber.

[0017] By adopting the above technical solution, water enters the water inlet and enters the connection pipe through the water inlet end, then enters the filter chamber through the inlet, the filter element in the filter chamber filters the water, and then the water leaves the filter chamber from the connection pipeline and leads to the water outlet from the water outlet end for indoor water supply.

[0018] Optionally, the sewage discharge assembly includes a sewage discharge pipeline and a sewage discharge valve. The sewage discharge pipeline is threadedly connected to the cover body, the sewage discharge valve is arranged on the sewage discharge pipeline, and the sewage discharge valve opens or closes the sewage discharge pipeline; a first O-ring is provided at the connection between the sewage discharge pipeline and the cover body.

[0019] By adopting the above technical solution, setting the first O-ring improves the sealing performance at the connection between the sewage discharge pipeline and the cover body and prevents water leakage.

[0020] Optionally, a second O-ring is provided at the connection between the cover body and the cylinder body.

[0021] By adopting the above technical solution, setting the second O-ring improves the sealing performance at the connection between the cover body and the cylinder body and prevents water leakage.

[0022] Optionally, a water pressure gauge is provided at one end of the cylinder body away from the cover body.

[0023] By adopting the above technical solution, installing the water pressure gauge can observe the water pressure when water passes through the pre-filter. When using water indoors, if the water output decreases, it can be judged whether the water pressure decreases when the water flow passes through the pre-filter according to the water pressure gauge, which is convenient for overhauling the pre-filter to maintain normal water pressure.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The outer cylinder is used for filtering, and the connection pipe is used to connect to the indoor pipeline. During installation, the orientation of the connection pipe is adjusted according to the pipeline orientation. Since the connection pipe is rotatably connected to the outer cylinder, the adjustment is relatively convenient. At the same time, the cooperation of the rotation protrusion and the rotation groove makes the rotation stable and further improves the tightness at the rotation part. Then, the connection water pipe is connected to the indoor pipeline, and corresponding type sealing rings are placed at the connection. Finally, the connection block is tightened on the water inlet end and the water outlet end of the connection pipe to complete the installation; this pre-filter is easy to install, has high installation efficiency, and can be applied to various pipeline conditions.

[0026] 2. The limiting convex ring and the installation protrusion are arranged to cooperate with each other to limit the connecting water pipe. The connecting water pipe and the connecting block can rotate relative to each other. During installation, just rotate the connecting block to install and fix the connecting block on the connecting pipe, which is relatively convenient.

[0027] 3. The limiting convex ring and the installation protrusion are arranged to cooperate with each other to limit the connecting water pipe. The connecting water pipe and the connecting block can rotate relative to each other. During installation, just rotate the connecting block to install and fix the connecting block on the connecting pipe, which is relatively convenient. Description of the Drawings

[0028] Figure 1 It is a schematic diagram of the overall structure of the easy-to-install universal pre-filter according to the embodiment of the present application.

[0029] Figure 2 It is a schematic diagram of the structure of the connecting pipe according to the embodiment.

[0030] Figure 3 It is a schematic diagram of the structure of the cylinder according to the embodiment.

[0031] Figure 4 It is an exploded view of the outer cylinder according to the embodiment.

[0032] Description of the reference numerals: 1. Outer cylinder; 101. Cylinder body; 102. Cover body; 103. Filter element; 2. Connecting pipe; 3. Inlet end; 4. Outlet end; 5. Drainage assembly; 51. Drainage pipe; 52. Drainage valve; 6. Water inlet; 7. Water outlet; 8. Connector; 9. Connecting hole; 10. Rotating protrusion; 11. Rotating groove; 12. Connecting member; 121. Connecting block; 122. Connecting water pipe; 13. Limiting convex ring; 14. Installation protrusion; 15. First sealing ring; 16. Second sealing ring; 17. Installation thread; 18. Filter cavity; 19. Connecting pipe; 20. Inlet; 21. First O-ring; 22. Second O-ring; 23. Water pressure gauge. Detailed Embodiment

[0033] The following further describes the present application in detail with reference to FIGS. 1-4.

[0034] The embodiment of the present application discloses an easy-to-install universal pre-filter. Refer to Figure 1 and Figure 2 , the easy-to-install universal pre-filter includes an outer cylinder 1, a connecting pipe 2 installed on the outer cylinder 1, an inlet end 3 fixed on the connecting pipe 2, an outlet end 4 fixed on the connecting pipe 2, and a drainage assembly 5 installed on the outer cylinder 1. The connecting pipe 2 is located on one side of the outer cylinder 1. The inlet end 3 and the outlet end 4 are respectively located at both ends of the connecting pipe 2. The inlet end 3 is provided with a water inlet 6, and the outlet end 4 is provided with a water outlet 7.

[0035] Refer to Figure 2 and Figure 3, on one side of the connecting pipe 2 facing the outer cylinder 1, a connector 8 is integrally fixed. The connector 8 is located between the water inlet end 3 and the water outlet end 4. On the side of the outer cylinder 1 facing the connecting pipe 2, a connecting hole 9 is opened. The connector 8 is rotatably connected in the connecting hole 9. A rotating protrusion 10 is fixed on the connector 8, and a rotating groove 11 for accommodating the rotating protrusion 10 is opened on the inner wall of the connecting hole 9.

[0036] Refer to Figure 1 and Figure 2 , connectors 12 are installed at both the water inlet end 3 and the water outlet end 4. The connector 12 includes a connecting block 121 threadedly connected to the connecting pipe 2 (the water inlet end 3 or the water outlet end 4) and a connecting water pipe 122 installed on the connecting block 121. One end of the connecting water pipes 122 close to each other is fixed with a limiting convex ring 13, and one end of the connecting blocks 121 away from each other is fixed with a mounting protrusion 14. The mounting protrusion 14 abuts against the limiting convex ring 13 to prevent the connecting water pipes 122 from moving away from each other. The connecting water pipe 122 is rotatably connected to the connecting block 121. A first sealing ring 15 is placed in the connecting block 121. The first sealing ring 15 abuts against the limiting convex ring 13 and the end of the corresponding connecting pipe 2 (the end face of the corresponding water inlet end 3 or the water outlet end 4). A second sealing ring 16 is placed in the connecting block 121. The second sealing ring 16 is located between the limiting convex ring 13 and the mounting protrusion 14. Both sides of the second sealing ring 16 abut against the limiting convex ring 13 and the mounting protrusion 14 respectively.

[0037] Refer to Figure 2 and Figure 3 , mounting threads 17 are distributed on both the water inlet end 3 and the water outlet end 4. The mounting threads 17 are used for connecting the connecting block 121.

[0038] Refer to Figure 3 and Figure 4 , the outer cylinder 1 includes a cylinder body 101, a cover body 102 and a filter element 103. A filtering cavity 18 is opened in the cylinder body 101. The filter element 103 is installed in the filtering cavity 18. The cover body 102 is threadedly connected to the cylinder body 101. The cover body 102 is located at the bottom end of the cylinder body 101. A connecting pipe 19 (refer to Figure 2 ) is integrally fixed on the connecting pipe 2. The connecting pipe 19 (refer to Figure 2 ) communicates the filtering cavity 18 and the water outlet 7. An inlet 20 is opened on the cylinder body 101. The inlet 20 communicates the water inlet 6 and the filtering cavity 18. Water enters the connecting pipe 2 through the water inlet 6, enters the filtering cavity 18 through the inlet 20 for filtering, and then the filtered water leads to the water outlet 7 through the connecting pipe 19, so as to supply water.

[0039] Refer to Figure 1 and Figure 4, the sewage discharge assembly 5 includes a sewage discharge pipe 51 and a sewage discharge valve 52. The sewage discharge pipe 51 is threadedly connected to the cover body 102, and the sewage discharge valve 52 is installed on the sewage discharge pipe 51. The sewage discharge valve 52 opens or closes the sewage discharge pipe 51. A first O-ring 21 is installed at the connection between the sewage discharge pipe 51 and the cover body 102. A second O-ring 22 is installed at the connection between the cover body 102 and the cylinder body 101. A water pressure gauge 23 is installed at one end of the cylinder body 101 away from the cover body 102.

[0040] The implementation principle of a universal pre-filter that is easy to install in an embodiment of the present application is as follows: The outer cylinder 1 is used for filtration, and the connecting pipe 2 is used to connect to the pipes inside the house. During installation, the orientation of the connecting pipe 2 is adjusted according to the orientation of the pipes. Since the connecting pipe 2 is rotatably connected to the outer cylinder 1, the adjustment is relatively convenient. At the same time, the cooperation of the rotating protrusion 10 and the rotating groove 11 makes the rotation stable and further improves the tightness at the rotating part. Then, the connecting water pipe 122 is connected to the pipes inside the house, and corresponding type sealing rings are placed at the connection. Finally, the connecting block 121 is tightened to the water inlet end 3 and the water outlet end 4 on the connecting pipe 2 to complete the installation; this pre-filter is easy to install, has a high installation efficiency, and can be applied to various pipe conditions.

[0041] The above are all preferred embodiments of the present application. Without restricting the protection scope of the present application based on this, therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A universal pre-filter that is easy to install, characterized in that: The invention comprises an outer cylinder (1), a connecting pipe (2) arranged on the outer cylinder (1), a water inlet end (3) arranged on the connecting pipe (2), a water outlet end (4) arranged on the connecting pipe (2), and a sewage discharge assembly (5) arranged on the outer cylinder (1), wherein the connecting pipe (2) is located on one side of the outer cylinder (1), the water inlet end (3) and the water outlet end (4) are respectively located at two ends of the connecting pipe (2), the water inlet end (3) is provided with a water inlet (6), and the water outlet end (4) is provided with a water outlet (7); a connecting head (8) is provided on the side of the connecting pipe (2) facing the outer cylinder (1), and the connecting head (8) is located on the inlet end. Between the water end (3) and the water outlet end (4), the outer cylinder (1) is provided with a connecting hole (9) on a side facing the connecting pipe (2), the connecting head (8) is rotatably connected in the connecting hole (9), the connecting head (8) is provided with a rotating protrusion (10), and the inner wall of the connecting hole (9) is provided with a rotating groove (11) for accommodating the rotating protrusion (10); the water inlet end (3) and the water outlet end (4) are both provided with a connecting piece (12), and the connecting piece (12) comprises a connecting block (121) threadedly connected to the connecting pipe (2) and a connecting water pipe (122) arranged on the connecting block (121).

2. The universal pre-filter that is easy to install according to claim 1 is characterized in that: A limiting convex ring (13) is provided at one end of the connecting water pipe (122) that is close to each other, and a mounting protrusion (14) is provided at one end of the connecting block (121) that is away from each other. The mounting protrusion (14) abuts against the limiting convex ring (13) to prevent the connecting water pipe (122) from moving in a direction away from each other; the connecting water pipe (122) is rotatably connected to the connecting block (121).

3. The easy-to-install universal pre-filter according to claim 2, characterized in that: A first sealing ring (15) is provided in the connection block (121), and the first sealing ring (15) abuts against the limiting convex ring (13) and the end of the corresponding connection pipe (2).

4. The easy-to-install universal pre-filter according to claim 3, characterized in that: A second sealing ring (16) is provided in the connection block (121), and the second sealing ring (16) is located between the limiting convex ring (13) and the mounting protrusion (14), and two sides of the second sealing ring (16) are respectively in contact with the limiting convex ring (13) and the mounting protrusion (14).

5. The universal pre-filter that is easy to install according to claim 1 is characterized in that: The water inlet end (3) and the water outlet end (4) are both provided with mounting threads (17), and the mounting threads (17) are used for connection with a connecting block (121).

6. The easy-to-install universal pre-filter according to claim 1, characterized in that: The outer cylinder (1) comprises a cylinder body (101), a cover body (102) and a filter element (103); a filter cavity (18) is provided in the cylinder body (101); the filter element (103) is installed in the filter cavity (18); the cover body (102) is threadedly connected to the cylinder body (101); the cover body (102) is located at the bottom end of the cylinder body (101); a connecting pipe (19) is provided on the connecting pipe (2); the connecting pipe (19) is connected to the filter cavity (18) and the water outlet (7); an inlet (20) is provided on the cylinder body (101); the inlet (20) is connected to the water inlet (6) and the filter cavity (18).

7. The easy-to-install universal pre-filter according to claim 6, characterized in that: The sewage discharge assembly (5) comprises a sewage discharge pipe (51) and a sewage discharge valve (52); the sewage discharge pipe (51) is threadedly connected to the cover body (102); the sewage discharge valve (52) is arranged on the sewage discharge pipe (51); the sewage discharge valve (52) opens or closes the sewage discharge pipe (51); and a first O-ring (21) is provided at the connection between the sewage discharge pipe (51) and the cover body (102).

8. The easy-to-install universal pre-filter according to claim 6, characterized in that: A second O-ring (22) is provided at the connection between the cover body (102) and the cylinder body (101).

9. The easy-to-install universal pre-filter according to claim 6, characterized in that: A water pressure gauge (23) is provided at one end of the cylinder (101) away from the cover (102).

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