A filter device

Abstract

The utility model provides a filter device, including filter device casing and setting in filter casing's filter mechanism, the filter mechanism includes filter core body and separation mechanism, is equipped with water inlet and water outlet on filter device casing, the water inlet hole and water outlet end are formed to filter core body, the water inlet hole with water inlet intercommunication, water outlet end with water outlet intercommunication, the utility model provides a filter device, sets up and forms the sealed cavity with buffer space, can buffer the air in sealed cavity when the air temperature drops suddenly, prevents the phenomenon of freeze -cracking because of freezing, improves the whole device's anti -icing effect, also further reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, specifically to a water purification filtration device for use as a pre-filter in water supply pipelines. Background Technology

[0002] As we all know, water purification equipment is a common filtration device in people's daily lives. Among them, the pre-filter is widely used. As the first coarse filter for the whole house's water supply, it mainly removes large particles such as sediment, rust, and floating matter from tap water through physical filtration. The working principle of the pre-filter is relatively simple, mainly relying on its internal filter element structure for physical filtration. These filters can be installed after the household tap water inlet meter to pre-filter all the water entering the household. However, after the filter is installed, it is prone to freezing and cracking in cold winter conditions. To prevent freezing and cracking, existing pre-filters consist of a copper top cover, a plastic transparent body, and a filter element. However, the copper top cover is expensive to manufacture, the processing technology is complex, and it is also inefficient. The plastic transparent body is generally made of PA12 or PCTG material, which is also expensive. Therefore, an anti-freezing and cracking structure can be set on the filter element to enhance the overall anti-freezing performance of the filter. That is, a filter with a reasonable structure, good anti-freezing and cracking effect, and low production cost can be designed. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a pre-filter device with flexible structure and good antifreeze effect.

[0004] To achieve the purpose of this utility model, this utility model provides a filtration device, including a filtration device housing and a filtration mechanism disposed within the filtration device housing. The filtration mechanism includes a filter element body and a separating mechanism. The filtration device housing is provided with an inlet and an outlet. The filter element body is formed with an inlet hole and an outlet end. The inlet hole is connected to the inlet hole, and the outlet end is connected to the outlet end. A filtration space is formed inside the filter element body. The separating mechanism is accommodated within the filtration space and divides the filtration space to form a buffer space. The separating mechanism includes a sealing component, which is used to form a sealed cavity in the buffer space.

[0005] Preferably, the filter element body includes a filter element shell and an inner filter element body, the inner filter element body is placed inside the filter element shell, one end of the inner filter element body is the water outlet end, and a filter element end cap is sealed to the water outlet end.

[0006] Preferably, one end of the filter element end cap is provided with a groove connection end, and a sealing ring position is provided on the groove connection end for connecting the sealing ring. A flow port is formed on the filter element end cap, and a flow panel is integrally formed on the flow port. The flow panel is provided with multiple strip-shaped flow holes, and each strip-shaped flow hole is distributed in a ring shape at intervals.

[0007] Preferably, a flow guide column is also provided on the flow port wall of the filter element end cap. The flow guide column is integrally formed with the flow port wall. Multiple flow guide columns are provided, and each flow guide column is spaced apart.

[0008] Preferably, a filter screen is fitted on the outer side of the internal filter element. The filter screen is made of metal and has a mesh size of 40-200. The inner diameter of the filter screen is the same as the outer diameter of the internal filter element. The filtration space is further divided to form a filtration chamber. The filtration chamber is filled with filter material, which can be one of the following: residual chlorine removal material, scale inhibitor, or mineralizing material. The particle size of the filter material is 0.5-50 mm. A water inlet hole is provided on the side of the internal filter element. The water inlet hole is a strip-shaped through hole located at the lower part of the filtration chamber. The height of the strip-shaped through hole is smaller than the particle size of the filter material filled in the filtration chamber.

[0009] Preferably, the sealing assembly includes a sealing piston and a sealing plug. The sealing piston has a piston hole, and a sealing O-ring is fitted onto the sealing plug and then inserted into the piston hole. A sealing connection groove is provided on the upper surface of the sealing piston. The sealing connection groove is used to connect the sealing ring. After the sealing ring is connected, the upper end of the sealing piston is sealed to the lower part of the internal filter element.

[0010] Preferably, the sealing assembly further includes an elastic element disposed below the sealing piston, the elastic element being used to form an upward positioning of the sealing piston below the sealing piston.

[0011] Preferably, one end of the sealing plug is a sealing connection end with a sealing ring, and the other end of the sealing plug is a spring end with two or more springs, and a gap is formed between the two springs.

[0012] Preferably, the filter device housing includes an upper shell body and a lower shell body, the top of the upper shell body is provided with the water outlet, and the side of the upper shell body is provided with the water inlet.

[0013] Preferably, the outlet is internally connected to a connecting plug, the upper end of which is a hexagonal connecting end and the lower end is a threaded connecting end. The filter device housing is made of plastic, and the lower housing body is threadedly connected to the upper housing body. The upper housing body is made of metal.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a filtration device, which is provided with a filtration device housing and an internal filtration mechanism. The filtration mechanism includes a filter element body and a separating mechanism. A filtration space is formed inside the filter element body. The separating mechanism is housed in the filtration space and divides the filtration space to form a buffer space. The separating mechanism includes a sealing component, which is used to form a sealed cavity in the buffer space. When the temperature drops suddenly, the air in the sealed cavity can be buffered to prevent freezing and cracking, thereby improving the antifreeze effect of the overall device and further reducing production costs. Attached Figure Description

[0015] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0016] Figure 1 This is a plan view of a filtration device according to the present invention;

[0017] Figure 2 This is a split schematic diagram of a filtration device according to the present invention;

[0018] Figure 3 This is a cross-sectional schematic diagram of a filtration device according to the present invention;

[0019] Figure 4 This is another schematic diagram of a filtration device according to this utility model.

[0020] In the diagram: 1. Filter housing; 11. Inlet; 12. Outlet; 13. Upper shell body; 14. Lower shell body; 2. Filter mechanism; 20. Buffer space; 201. Filter chamber; 21. Filter element body; 22. Inlet hole; 23. Outlet end; 24. Filter element outer shell; 25. Internal filter element body; 3. Separation mechanism; 31. Sealing piston; 32. Sealing plug; 321. Connection end; 322. Spring end; 33. Elastic element; 4. Filter element end cap; 41. Tank connection end; 42. Flow panel; 43. Strip flow hole; 44. Guide column; 5. Filter screen. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings.

[0022] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this applies. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] like Figure 1-4 As shown, a preferred embodiment of the present invention provides a filtration device, including a filtration device housing 1 and a filtration mechanism 2 disposed within the filtration device housing 1. The filtration mechanism 2 includes a filter element body 21 and a separating mechanism 3. The filtration device housing 1 is provided with an inlet 11 and an outlet 12. The filter element body 21 is formed with an inlet hole 22 and an outlet end 23. The inlet hole 22 is connected to the inlet 11. Water to be filtered enters through the inlet 11 and then flows into the filter element body 21. The outlet end 23 is connected to the outlet 12. A filtration space is formed inside the filter element body 21. Water enters the filtration space through the inlet hole 22 on the filter element body. The separating mechanism 3 is housed within the filtration space and divides the filtration space to form a buffer space 20. The separating mechanism 3 includes a sealing component. In cold winter, when the external temperature drops, the sealing component is used to form a sealed cavity in the buffer space, so that there is a certain amount of air in the sealed cavity for buffering, preventing freezing and cracking.

[0025] refer to Figure 1-4 As shown, in a further preferred embodiment, the filter element body 21 includes a filter element shell 24 and an inner filter element body 25. The inner filter element body 25 is built into the filter element shell 24. One end of the inner filter element body 25 is a water outlet 23. A filter element end cap 4 is sealed and connected to the water outlet 23. The filter element end cap 4 is provided to better connect the inner filter element body 25 and ensure a stable connection structure.

[0026] refer to Figure 1-4As shown, in a preferred embodiment, one end of the filter element end cap 4 is provided with a groove connection end 41, that is, a groove-shaped connection end face is provided on the connection surface of the filter element end cap 4. The groove connection end 41 is provided with a sealing ring position, which is used to connect the sealing ring. The groove connection end 41 is provided so that the sealing ring can be connected by fitting, making the structure stable during sealing connection. A flow port is formed on the filter element end cap 4, and a flow panel 42 is integrally formed on the flow port. The flow panel 42 is provided with strip-shaped flow holes 43. The strip-shaped flow holes 43 are arc-shaped, and there are multiple of them, some long and some short. Each strip-shaped flow hole 43 is distributed in a ring shape at intervals. The flow panel with strip-shaped flow holes 43 is used to evenly circulate the filtered water, thereby improving the filtration efficiency and effect.

[0027] refer to Figure 1-4 As shown, in a preferred embodiment, a flow guide column 44 is also provided on the flow port wall of the filter end cap 4. The flow guide column 44 is integrally formed with the flow port wall. Multiple flow guide columns 44 are provided, and each flow guide column 44 is spaced apart. The provided flow guide columns 44 are also used to enhance the structural strength of the filter end cap.

[0028] refer to Figure 1-4 As shown, in a further preferred embodiment, a filter screen 5 is fitted onto the outer side of the inner filter element 25. The filter screen 5 is made of metal and has a mesh size of 40-200. The inner diameter of the filter screen 5 is the same as the outer diameter of the inner filter element. The filtration space is further divided to form a filter cavity 201, which is filled with filter material (the filter material is prior art and therefore not shown in detail). The filter material can be a residual chlorine removal material, a scale inhibitor, or a mineralizing material. The filter material has granular particles. The diameter is 0.5-50mm, and further, the particle size can also be spherical particles of 1-5mm. The side of the internal filter element 25 is provided with a water inlet hole 22. The water inlet hole 22 is a strip-shaped through hole. The strip-shaped through hole is located at the lower part of the filter chamber 201. The water to be filtered enters from the lower water inlet hole, passes through the filter chamber 201 for filtration, and flows towards the filter element end cover. Finally, it flows out from the filter element end cover. The height of the strip-shaped through hole is smaller than the particle size of the filter material filled in the filtration space. The structure is reasonably set and the filtration efficiency is improved.

[0029] refer to Figure 1-4 As shown, in a further preferred embodiment, the sealing assembly includes a sealing piston 31 and a sealing plug 32. The sealing piston 31 has a piston hole, and the sealing plug 32 is fitted with a sealing O-ring and then inserted into the piston hole. The upper surface of the sealing piston 31 has a sealing connection groove for connecting the sealing ring. After connecting the sealing ring, the upper end of the sealing piston is sealed to the lower part of the internal filter element 25, ensuring better sealing performance after connection and preventing leakage.

[0030] refer to Figure 1-4 As shown, in a further preferred embodiment, the sealing assembly is further provided with an elastic element 33, which is disposed below the sealing piston. The elastic element 33 is used to form an upward positioning of the sealing piston below the sealing piston. The elastic element 33 can be a spring. During installation, the elastic element 33 is first placed inside the filter device housing, and then the sealing piston is installed under the padding action of the elastic element 33. The structure is flexible and convenient for installation and connection.

[0031] refer to Figure 1-4 As shown, in a further preferred embodiment, one end of the sealing plug 32 is a sealing connection end 321, and a sealing ring is provided on the connection end 321. The other end of the sealing plug is a spring end 322, which is provided with two or more springs. A gap is formed between the two springs. The springs are designed to act as an inverted snap to prevent the sealing plug from falling off.

[0032] refer to Figure 1-4 As shown, in a further preferred embodiment, the filter device housing 1 is provided with an upper shell body 13 and a lower shell body 14. The top of the upper shell body 13 is provided with a water outlet 12, and the side of the upper shell body is provided with a water inlet 11. The water outlet 12 is connected to the filter element end cap. The water inlet 11 and the water outlet 12 are reasonably set to improve the filtration efficiency.

[0033] refer to Figure 1-4 As shown, in a further preferred embodiment, a connecting plug 6 is connected inside the outlet 12. The upper end of the connecting plug 6 is a hexagonal connecting end, and the lower end is a threaded connecting end body, which facilitates connection to external water pump interface equipment or other water connection equipment interfaces. The filter device housing 1 is a plastic housing. The lower housing body 13 is threadedly connected to the upper housing body 14. In a further preferred embodiment, or in another embodiment, in order to ensure the reliability of the threaded connection, the upper housing body 13 can also be a metal upper housing body, specifically, it can be a copper upper housing body.

[0034] The beneficial effects of this utility model are as follows: This utility model provides a filtration device, which is provided with a filtration device housing and an internal filtration mechanism. The filtration mechanism includes a filter element body and a separating mechanism. A filtration space is formed inside the filter element body. The separating mechanism is housed in the filtration space and divides the filtration space to form a buffer space. The separating mechanism includes a sealing component, which is used to form a sealed cavity in the buffer space. When the temperature drops suddenly, the air in the sealed cavity can be buffered to prevent freezing and cracking, thereby improving the antifreeze effect of the overall device and further reducing production costs.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] The above embodiments only illustrate several implementation methods of the utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A filtration device, characterized in that: The filter includes a filter housing and a filter mechanism disposed within the filter housing. The filter mechanism includes a filter element body and a separating mechanism. The filter housing has an inlet and an outlet. The filter element body has an inlet hole and an outlet. The inlet hole is connected to the inlet hole, and the outlet hole is connected to the outlet hole. A filter space is formed inside the filter element body. The separating mechanism is housed within the filter space and divides the filter space to form a buffer space. The separating mechanism includes a sealing component, which is used to form a sealed cavity in the buffer space.

2. The filtration device according to claim 1, characterized in that, The filter element body includes a filter element shell and an inner filter element body. The inner filter element body is placed inside the filter element shell. One end of the inner filter element body is the water outlet end, and a filter element end cap is sealed to the water outlet end.

3. The filtration device according to claim 2, characterized in that, One end of the filter element end cap is provided with a groove connection end, and a sealing ring position is provided on the groove connection end. The sealing ring position is used to connect the sealing ring. A flow port is formed on the filter element end cap, and a flow panel is integrally formed on the flow port. A strip-shaped flow hole is provided on the flow panel. There are multiple strip-shaped flow holes, and each strip-shaped flow hole is distributed in a ring shape at intervals.

4. The filtration device according to claim 2, characterized in that, The flow port wall on the filter element end cap is also provided with a flow guide column, which is integrally formed with the flow port wall. Multiple flow guide columns are provided, and each flow guide column is spaced apart.

5. The filtration device according to claim 2, characterized in that, The inner filter element is fitted with a filter screen on its outer side. The filter screen is made of metal and has a mesh size of 40-200. The inner diameter of the filter screen is the same as the outer diameter of the inner filter element. The filtration space is further divided to form a filtration chamber. The filtration chamber is filled with filter material, which can be one of the following: residual chlorine removal material, scale inhibitor, or mineralizing material. The particle size of the filter material is 0.5-50 mm. A water inlet hole is opened on the side of the inner filter element. The water inlet hole is a strip-shaped through hole located at the lower part of the filtration chamber. The height of the strip-shaped through hole is smaller than the particle size of the filter material filled in the filtration chamber.

6. The filtration device according to claim 1, characterized in that, The sealing assembly includes a sealing piston and a sealing plug. The sealing piston has a piston hole. A sealing O-ring is fitted onto the sealing plug and then inserted into the piston hole. A sealing connection groove is provided on the upper surface of the sealing piston. The sealing connection groove is used to connect the sealing ring. After the sealing ring is connected, the upper end of the sealing piston is sealed to the lower part of the internal filter element.

7. The filtration device according to claim 1, characterized in that, The sealing assembly also includes an elastic element disposed below the sealing piston, which is used to form an upward positioning of the sealing piston below the sealing piston.

8. The filtration device according to claim 6, characterized in that, One end of the sealing plug is a sealing connection end, and a sealing ring is provided on the connection end. The other end of the sealing plug is a spring end, which is provided with two or more springs, and a gap is formed between the two springs.

9. The filtration device according to claim 1, characterized in that, The filter device housing consists of an upper shell and a lower shell. The upper shell has an outlet at its top and an inlet at its side.

10. The filtration device according to claim 1, characterized in that, The outlet is internally connected to a connecting plug, the upper end of which is a hexagonal connecting end and the lower end is a threaded connecting end. The filter device housing is made of plastic, and the lower housing body is threadedly connected to the upper housing body. The upper housing body is made of metal.

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