Powder sintering filter

Abstract

The utility model discloses a powder sintering filter which comprises a main body assembly, and the main body assembly comprises a shell, an external thread connecting cylinder, a filter body and a limiting push rod. According to the utility model, the filter body is made of the PTFE suspended micro-powder material through the process of mould pressing and sintering, and the material not only has excellent filtering effect and durability, but also can effectively filter impurities in liquid and maintain long-time stable performance, so that the filtering effect is improved; the filter body is made of a specific material, so that the production cost is relatively low, a complicated maintenance procedure is not needed, and when the filter is polluted or the efficiency is reduced, the filter can be conveniently discarded and replaced by a new filter, so that the maintenance process is simplified; through the specific structural design including the limiting clamping groove, the limiting push rod, the spring and the like, the filter is very simple and rapid to mount and dismount, so that the time and the cost required for replacing the filter are reduced, and the production efficiency is improved.

Description

Technical field:

[0001] The utility model relates to the technical field of filters, in particular to a powder sintered filter. Background technology:

[0002] A filter is a device used for filtering liquids or gases. Its main function is to remove impurities, particles or pollutants from the fluid to protect downstream equipment or ensure product quality. Filters play an indispensable role in various industries, environmental protection and daily life. The application field of filters is very wide. In industrial production, filters are used to protect equipment from impurities and ensure the smooth progress of the production process; in the field of environmental protection, filters are used to treat wastewater and exhaust gas to reduce the emission of pollutants; in daily life, filters are used in the fields of household tap water purification, air purifiers, etc. to improve the quality of life. In the chemical, pharmaceutical, food and beverage industries, the performance of filters is directly related to product quality and production efficiency.

[0003] The existing metal powder sintered filter is costly and difficult to maintain, and special sealing is required at the filtering point to ensure that the solution passes through the filter. The paper filter cannot withstand high pressure and is easy to tear. In addition, the existing metal powder sintered filter is not easy to disassemble and replace, which affects the production efficiency. Therefore, a powder sintered filter is proposed. Utility model content:

[0004] The purpose of the utility model is to provide a powder sintered filter to solve one of the problems raised in the above background technology.

[0005] The utility model is implemented by the following technical scheme: a powder sintered filter, including a main body component, the main body component includes an outer shell, an externally threaded connecting cylinder, a filter body, a liquid inlet hole, a limiting slot, a connecting seat, a slide groove and a limiting push rod, an externally threaded connecting cylinder is welded at the center of the lower surface of the outer shell, the inner side wall of the externally threaded connecting cylinder is slidably connected to the filter body, the filter body is made of PTFE suspended micropowder through a molding and then sintering process, a liquid inlet hole is opened at the center of the lower surface of the filter body, a limiting slot is opened in the middle of the upper surface of the filter body, connecting seats are welded to the top of both sides of the inner side wall of the outer shell, and slide grooves are opened in the middle of the adjacent sides of the two connecting seats, the inner side walls of the two slide grooves are slidably connected to the limiting push rod, and the middle of the outer side wall of the limiting push rod is slidably connected to the inner side wall of the limiting slot.

[0006] As a further preferred embodiment of the present technical solution: a limiting column is welded at the center of the inner top wall of the slide groove, the bottom of the limiting column is welded to the center of the inner bottom wall of the slide groove, limiting sliding holes are provided on the upper surface and both sides of the limiting push rod, and the inner side wall of the limiting sliding hole is slidably connected to the inner side wall of the limiting column.

[0007] As a further preferred embodiment of the present technical solution: a spring is sleeved on the upper portion of the outer wall of the limit column, the top of the spring is fitly connected to the inner top wall of the slide groove close to the outer side of the limit column, and the bottom of the spring is fitly connected to the upper surface of the limit push rod close to the outer side of the limit slide hole.

[0008] As a further preferred embodiment of the present technical solution: sealing grooves are provided at the upper and lower parts of the inner wall of the external threaded connection cylinder, the inner walls of the two sealing grooves are fixedly connected with sealing rings, and the inner walls of the sealing rings are fittedly connected to the lower part of the outer wall of the filter body.

[0009] As a further preferred embodiment of the present technical solution: a nut is threadedly connected to the outer wall of the external threaded connection tube, a limiting ring is welded to the bottom of the inner wall of the nut, a sealing ring is rotatably connected to the upper part of the inner wall of the nut near the limiting ring, the outer side of the upper surface of the sealing ring is fit-connected to the lower surface of the external threaded connection tube, a liquid inlet cylinder is welded to the inner wall of the sealing ring, and a liquid inlet joint is welded to the bottom of the liquid inlet cylinder.

[0010] As a further preferred embodiment of the technical solution: a clean liquid outlet hole is opened at the center of the upper surface of the shell, and a liquid outlet joint is welded to the inner side wall of the clean liquid outlet hole.

[0011] As a further preferred embodiment of the present technical solution: the inner side of the upper surface of the sealing ring is closely connected to the outer side of the lower surface of the filter body.

[0012] As a further preferred embodiment of the present technical solution: an anti-slip ring is welded to the lower part of the outer wall of the liquid inlet cylinder close to the sealing ring, and the adjacent sides of the sealing ring and the anti-slip ring are slidably connected to the top and bottom of the limiting ring respectively.

[0013] Advantages of the utility model:

[0014] 1. The utility model adopts PTFE suspended micro powder material through molding and sintering process to make the filter body. This material not only has excellent filtering effect and durability, but also can effectively filter impurities in the liquid and maintain long-term stable performance, thereby improving the filtering effect.

[0015] 2. The utility model uses specific materials to make the filter body, so the production cost is relatively low and no complicated maintenance procedures are required. When the filter is contaminated or its efficiency decreases, it can be easily discarded and replaced with a new filter, thereby simplifying the maintenance process.

[0016] 3. The utility model adopts a specific structural design, including limit slots, limit push rods, springs and other components, so that the installation and removal of the filter becomes very simple and quick, thereby reducing the time and cost required for replacing the filter and improving production efficiency. Description of the drawings:

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall cutaway structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connecting seat and the limit push rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the filter body structure of the utility model.

[0022] In the figure: 1. main assembly; 11. outer shell; 12. external threaded connection cylinder; 13. filter body; 14. liquid inlet hole; 15. limit slot; 16. connecting seat; 17. slide groove; 18. limit push rod; 19. limit column; 20. limit slide hole; 21. spring; 22. sealing groove; 23. sealing ring; 24. nut; 25. limit ring; 26. sealing ring; 27. liquid inlet cylinder; 28. liquid inlet joint; 29. ​​clean liquid outlet hole; 30. liquid outlet joint; 31. anti-slip ring. Specific implementation method:

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-Figure 4The utility model provides a technical solution: a powder sintered filter, including a main body component 1, the main body component 1 includes a shell 11, an external threaded connection tube 12, a filter body 13, a liquid inlet hole 14, a limit card slot 15, a connection seat 16, a slide groove 17 and a limit push rod 18, the center of the lower surface of the shell 11 is welded with an external threaded connection tube 12, the inner side wall of the external threaded connection tube 12 is slidably connected with the filter body 13, the filter body 13 is made of PTFE suspended micropowder through a molding and sintering process, and the center of the lower surface of the filter body 13 A liquid inlet hole 14 is provided, a limit slot 15 is provided in the middle of the upper surface of the filter body 13, connecting seats 16 are welded on the tops of both sides of the inner wall of the shell 11, and a slide groove 17 is provided in the middle of the adjacent side of the two connecting seats 16. The inner walls of the two slide grooves 17 are slidably connected to a limit push rod 18, and the middle of the outer wall of the limit push rod 18 is slidably connected to the inner wall of the limit slot 15. The filter body 13 is made of PTFE suspended micropowder material, which has excellent filtering effect and durability, is chemically inert and stable, and does not dissolve any impurities.

[0026] In this embodiment, specifically: a limiting column 19 is welded at the center of the inner top wall of the slide groove 17, the bottom of the limiting column 19 is welded to the center of the inner bottom wall of the slide groove 17, and limiting sliding holes 20 are provided on the upper surface and both sides of the limiting push rod 18. The inner side wall of the limiting sliding hole 20 is slidably connected to the inner side wall of the limiting column 19, and the limiting push rod 18 slides along the outer wall of the limiting column 19 through the limiting sliding hole 20 on the limiting push rod 18, thereby limiting the limiting push rod 18, thereby increasing the sliding stability of the limiting push rod 18.

[0027] In this embodiment, specifically: a spring 21 is sleeved on the upper part of the outer wall of the limit column 19, the top of the spring 21 is fitly connected to the inner top wall of the slide groove 17 close to the outer side of the limit column 19, and the bottom of the spring 21 is fitly connected to the upper surface of the limit push rod 18 close to the outer side of the limit slide hole 20, so that the push force of the spring 21 facilitates the reset of the limit push rod 18.

[0028] In this embodiment, specifically: sealing grooves 22 are provided on the upper and lower parts of the inner wall of the external threaded connection tube 12, and the inner walls of the two sealing grooves 22 are fixedly connected with sealing rings 23, and the inner walls of the sealing rings 23 are fitted and connected to the lower part of the outer wall of the filter body 13. The sealing performance of the sealing rings 23 inside the sealing grooves 22 increases the sealing performance between the filter body 13 and the external threaded connection tube 12.

[0029] In the present embodiment, specifically: the outer wall of the external threaded connection tube 12 is threadedly connected with a nut 24, the bottom of the inner wall of the nut 24 is welded with a limiting ring 25, the inner wall of the nut 24 is rotatably connected with a sealing ring 26 near the upper part of the limiting ring 25, the outer side of the upper surface of the sealing ring 26 is fittedly connected to the lower surface of the external threaded connection tube 12, the inner wall of the sealing ring 26 is welded with a liquid inlet tube 27, and the bottom of the liquid inlet tube 27 is welded with a liquid inlet joint 28, by tightening the nut 24, the sealing ring 26 and the external threaded connection tube 12 are tightly connected, thereby increasing the sealing of the connection between the two.

[0030] In this embodiment, specifically: a clean liquid outlet hole 29 is opened at the center of the upper surface of the shell 11, and a liquid outlet joint 30 is welded to the inner side wall of the clean liquid outlet hole 29. The liquid outlet joint 30 is convenient for connecting a liquid outlet pipe to discharge the filtered pure liquid.

[0031] In this embodiment, specifically: the inner side of the upper surface of the sealing ring 26 is closely connected to the outer side of the lower surface of the filter body 13 , and the filter body 13 is limited by the sealing ring 26 , thereby increasing the installation stability of the filter body 13 .

[0032] In the present embodiment, specifically: an anti-slip ring 31 is welded to the lower part of the outer wall of the liquid inlet cylinder 27 near the sealing ring 26, and the adjacent sides of the sealing ring 26 and the anti-slip ring 31 are respectively slidably connected to the top and bottom of the limiting ring 25, and the limiting ring 25 on the nut 24 is limited by the sealing ring 26 and the anti-slip ring 31, thereby limiting the nut 24 to prevent the nut 24 from slipping off the liquid inlet cylinder 27.

[0033] The working principle or structural principle is that when using, when installing the filter body 13, first insert the filter body 13 into the externally threaded connection tube 12, so that the limiting groove 15 on the filter body 13 and the limiting push rod 18 are engaged, thereby limiting the filter body 13 to prevent the filter body 13 from rotating, and then dock the nut 24 with the externally threaded connection tube 12, and rotate the nut 24 and the externally threaded connection tube 12 for threaded connection, so that the nut 24 drives the sealing ring 26 to move up and seal the bottom of the externally threaded connection tube 12. At the same time, the sealing ring 26 pushes the filter body 13 to move up, thereby driving the limiting push rod 18 to move up, and then compressing the spring 21; when disassembling the filter body 13, rotate the nut 24 to remove it, thereby releasing the sealing ring 26 from the filter body. The limit of the body 13 pushes the limit push rod 18 downward under the thrust of the spring 21, so that the filter body 13 slides out from the inside of the external threaded connection tube 12, so that it is easy to remove the filter body 13 for replacement; when in use, the liquid to be filtered is connected through the liquid inlet joint 28, and the liquid enters the filter body 13 through the liquid inlet hole 14 for filtration. The filtered liquid enters the cavity between the shell 11 and the filter body 13, and is output through the clean liquid outlet hole 29 and the liquid outlet joint 30. The filter body 13 is made of PTFE suspended micropowder through a molding and then sintering process. The filter body 13 made of this material has excellent filtering effect and durability, low production cost, no maintenance, and can be discarded and replaced with a new one after contamination. It is chemically inert and stable and does not dissolve any impurities.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A powder sintered filter, characterized in that: include A main body component (1), the main body component (1) comprising a housing (11), an externally threaded connection cylinder (12), a filter body (13), a liquid inlet hole (14), a limit slot (15), a connection seat (16), a slide groove (17) and a limit push rod (18), an externally threaded connection cylinder (12) is welded at the center of the lower surface of the housing (11), the inner side wall of the externally threaded connection cylinder (12) is slidably connected to the filter body (13), and the filter body (13) is made of PTFE suspended micropowder through a molding and then sintering process, A liquid inlet hole (14) is provided at the center of the lower surface of the filter body (13), a limit slot (15) is provided in the middle of the upper surface of the filter body (13), connecting seats (16) are welded to the tops of both sides of the inner wall of the shell (11), and a sliding groove (17) is provided in the middle of the adjacent side of the two connecting seats (16), the inner walls of the two sliding grooves (17) are slidably connected to a limit push rod (18), and the middle of the outer wall of the limit push rod (18) is slidably connected to the inner wall of the limit slot (15).

2. A powder sintered filter according to claim 1, characterized in that: A limiting column (19) is welded at the center of the inner top wall of the slide groove (17), and the bottom of the limiting column (19) is welded to the center of the inner bottom wall of the slide groove (17). The upper surface of the limiting push rod (18) and both sides thereof are provided with limiting sliding holes (20), and the inner side wall of the limiting sliding hole (20) is slidably connected to the inner side wall of the limiting column (19).

3. A powder sintered filter according to claim 2, characterized in that: A spring (21) is sleeved on the upper portion of the outer wall of the limiting column (19), the top of the spring (21) is closely connected to the inner top wall of the slide groove (17) near the outer side of the limiting column (19), and the bottom of the spring (21) is closely connected to the upper surface of the limiting push rod (18) near the outer side of the limiting slide hole (20).

4. A powder sintered filter according to claim 2, characterized in that: The upper and lower parts of the inner wall of the external threaded connection tube (12) are both provided with sealing grooves (22), the inner walls of the two sealing grooves (22) are both fixedly connected with sealing rings (23), and the inner walls of the sealing rings (23) are closely connected to the lower part of the outer wall of the filter body (13).

5. A powder sintered filter according to claim 1, characterized in that: The outer wall of the external threaded connection tube (12) is threadedly connected with a nut (24), the bottom of the inner wall of the nut (24) is welded with a limit ring (25), the inner wall of the nut (24) is rotatably connected with a sealing ring (26) near the upper part of the limit ring (25), the outer side of the upper surface of the sealing ring (26) is closely connected to the lower surface of the external threaded connection tube (12), the inner wall of the sealing ring (26) is welded with a liquid inlet tube (27), and the bottom of the liquid inlet tube (27) is welded with a liquid inlet joint (28).

6. A powder sintered filter according to claim 5, characterized in that: A clean liquid outlet hole (29) is provided at the center of the upper surface of the housing (11), and a liquid outlet joint (30) is welded to the inner side wall of the clean liquid outlet hole (29).

7. A powder sintered filter according to claim 5, characterized in that: The inner side of the upper surface of the sealing ring (26) is closely connected to the outer side of the lower surface of the filter body (13).

8. A powder sintered filter according to claim 5, characterized in that: An anti-slip ring (31) is welded to the lower part of the outer wall of the liquid inlet cylinder (27) near the sealing ring (26), and the adjacent sides of the sealing ring (26) and the anti-slip ring (31) are slidably connected to the top and bottom of the limiting ring (25) respectively.

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