Filter core ejection structure and water purifier thereof

Abstract

The utility model discloses a filter core ejection structure and water purifier thereof, including the head, with the filter bottle of head detachable connection, be equipped with the valve core in the head, be equipped with the filter core subassembly in the filter bottle, the central upper end surface of filter core subassembly is equipped with the piston, is equipped with the spring above the piston, the spring one end is fixed in the inner wall of valve core, the other end and piston resist contact.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a filter cartridge ejection structure and a water purifier thereof. Background Technology

[0002] Water purifiers are used to remove floating debris, rust, silt, and other particulate impurities from water. Their filter cartridges are typically made of materials such as stainless steel mesh, laminated discs, or PP cotton. Among these, PP cotton filters offer high filtration accuracy but have a short clogging cycle and require frequent replacement.

[0003] In existing technologies, the filter element assembly is tightly sealed and fixed to the head, resulting in high friction and making disassembly and assembly difficult. In addition, some products use springs arranged in a straight line or triangle on the outer hole of the head to push out the filter element assembly, but the eccentric setting of the springs can easily cause the filter element assembly to be tilted during pushing out or assembly, further increasing the difficulty of disassembly and assembly. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems and provide a filter cartridge ejection structure and its water purifier. This utility model achieves rapid and stable ejection of the filter cartridge assembly through a centrally located spring and piston structure, solving the problems of difficult disassembly and assembly and eccentricity in the prior art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a filter element ejection structure, including a machine head and a filter bottle detachably connected to the machine head. A valve core is provided inside the machine head, and a filter element assembly is provided inside the filter bottle. A piston is provided on the upper center surface of the filter element assembly, and a spring is provided above the piston. One end of the spring is fixed to the inner wall of the valve core, and the other end abuts against the piston. This structure, through the centrally located spring and piston, allows the filter element assembly to be stably and evenly ejected during disassembly, avoiding jamming or tilting problems caused by eccentric force, and improving the convenience of disassembly and assembly. At the same time, the spring force can effectively overcome the tight-fitting friction between the filter element assembly and the machine head, ensuring the smooth detachment of the filter element.

[0006] Preferably, the valve core includes an inner cavity and an outer cover located outside the inner cavity. The inner cavity and outer cover are integrally formed, with a spring located inside the inner cavity. The outer cover has an inlet and an outlet, with the outlet connecting the outer cover and the inner cavity. This integrally formed inner cavity and outer cover structure improves the valve core's sealing performance, durability, and water flow efficiency. The inlet and outlet are directly located on the outer cover and connect to the inner cavity via the outlet, resulting in a smoother water flow path, reduced turbulence and pressure loss, and improved filtration efficiency.

[0007] Preferably, the filter element assembly includes a filter element disposed inside the filter bottle and an upper end cap disposed at the center of the filter element. Both the upper end cap and the piston are disposed within the inner cavity. The mating design of the upper end cap and the piston ensures that the filter element assembly is subjected to force at the center, avoiding sealing failure or structural damage caused by uneven force during disassembly, while also simplifying the overall structure.

[0008] Preferably, a piston sealing ring is provided on the outer side of the piston to form a sealing fit with the inner cavity. The piston sealing ring can prevent water leakage, ensure the sealing of the filtration system, and reduce the frictional resistance when the piston moves, making the ejection action smoother.

[0009] Preferably, a filter element sealing ring is provided on the outer side of the upper cover, and the filter element assembly is sealed to the valve core through the filter element sealing ring. The filter element sealing ring further enhances the sealing between the filter element assembly and the valve core, ensuring the filtration effect.

[0010] Preferably, both the piston seal and the filter element seal are O-rings.

[0011] Preferably, the spring length is such that it can push the piston to the bottom end face of the inner cavity when the filter bottle is opened. The spring length is precisely designed to ensure that the piston can fully push out the filter element assembly when the filter bottle is opened, while avoiding excessive compression or relaxation of the spring, thus improving structural reliability and service life.

[0012] Preferably, the piston has a groove, and one end of the spring is engaged in the groove. The groove fixes the end of the spring, preventing the spring from shifting or falling off, and ensuring the stability and accuracy of the ejection action.

[0013] Preferably, the filter head is equipped with an inlet pipe and an outlet pipe, with the inlet pipe abutting against the inlet and the outlet pipe abutting against the outlet. The integrated filter head design simplifies pipe connections and reduces the risk of leakage; the direct abutment design of the inlet and outlet pipes optimizes the water flow path, reduces pressure loss, and improves filtration efficiency.

[0014] A water purifier includes the filter cartridge ejection structure.

[0015] The working principle of this utility model is as follows:

[0016] Assembly status: When the filter bottle is sealed and assembled, the filter element assembly pushes the piston upward, and the spring is in a compressed state.

[0017] Disassembly state: When the filter bottle is opened, the spring extends and pushes the piston downward, pushing the filter element assembly out of the inner cavity. The filter element assembly automatically falls off under the action of gravity.

[0018] The beneficial effects of this utility model are as follows: The filter element ejection structure of this utility model achieves rapid and stable disassembly of the filter element assembly by optimizing the layout and cooperation of the spring, piston, sealing ring and valve core. It solves the problems of difficult disassembly and assembly, eccentric force and poor sealing in the prior art. It has the advantages of simple structure, high reliability and convenient maintenance. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the present invention in its assembled state.

[0020] Figure 2 yes Figure 1 A cross-sectional view along AA.

[0021] Figure 3 This is a structural diagram of the present invention in its disassembled state.

[0022] Figure 4 yes Figure 3 A cross-sectional view along the BB direction.

[0023] Figure 5 This is a schematic diagram of the connection between the piston and the spring.

[0024] Figure 6 This is a schematic diagram of the valve core.

[0025] Figure 7 This is a structural schematic diagram of the valve core from another perspective.

[0026] In the diagram: 1. Machine head, 11. Inlet pipe, 12. Outlet pipe, 2. Filter bottle, 3. Valve core, 31. Inner cavity, 32. Outer cover, 321. Inlet hole, 322. Outlet hole, 4. Filter element assembly, 41. Filter element, 42. Top cover, 43. Filter element sealing ring, 5. Piston, 51. Piston sealing ring, 52. Groove, 6. Spring. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1-7 As shown, the present invention provides a filter element ejection structure, including a head 1 and a filter bottle 2 detachably connected to the head 1. The head 1 is provided with a valve core 3, and the filter bottle 2 is provided with a filter element assembly 4. The upper center surface of the filter element assembly 4 is provided with a piston 5, and a spring 6 is provided above the piston 5. One end of the spring 6 is fixed to the inner wall of the valve core 3, and the other end abuts against the piston 5.

[0029] The valve core 3 includes an inner cavity 31 and an outer cover 32 located outside the inner cavity 31. The inner cavity 31 and the outer cover 32 are integrally formed. The spring 6 is located inside the inner cavity 31. The outer cover 32 is provided with a water inlet hole 321 and a water outlet hole 322. The water outlet hole 322 connects the outer cover 32 and the inner cavity 31.

[0030] The filter element assembly 4 includes a filter element 41 disposed in the filter bottle 2 and an upper end cover 42 disposed at the center of the filter element 41. The upper end cover 42 and the piston 5 are both disposed in the inner cavity 31.

[0031] The piston 5 is provided with a piston sealing ring 51 on the outside, which forms a sealing fit with the inner cavity 31.

[0032] The upper cover 42 is provided with a filter element sealing ring 43 on the outside, and the filter element assembly 4 is sealed to the valve core 3 through the filter element sealing ring 43.

[0033] Both piston seal 51 and filter element seal 43 are O-rings.

[0034] The length of the spring 6 is such that when the filter bottle 2 is opened, it can push the piston 5 to the bottom end face of the inner cavity 31.

[0035] The piston 5 has a groove 52, and one end of the spring 6 is locked in the groove 52.

[0036] The machine head 1 is equipped with an inlet pipe 11 and an outlet pipe 12. The inlet pipe 11 is abutted against the inlet, and the outlet pipe 12 is abutted against the outlet.

[0037] A water purifier includes the filter cartridge ejection structure.

[0038] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0039] It should be noted that when a component is referred to as "fixed on" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

Claims

1. A filter cartridge ejection structure, characterized in that: Includes a machine head (1) and a filter bottle (2) detachably connected to the machine head (1). The machine head (1) is provided with a valve core (3), and the filter bottle (2) is provided with a filter element assembly (4). The filter element assembly (4) is provided with a piston (5) on the upper center surface. A spring (6) is provided above the piston (5). One end of the spring (6) is fixed to the inner wall of the valve core (3), and the other end abuts against the piston (5).

2. The filter element ejection structure according to claim 1, characterized in that: The valve core (3) includes an inner cavity (31) and an outer cover (32) located outside the inner cavity (31). The inner cavity (31) and the outer cover (32) are integrally formed. The spring (6) is located inside the inner cavity (31). The outer cover (32) is provided with a water inlet hole (321) and a water outlet hole (322). The water outlet hole (322) connects the outer cover (32) and the inner cavity (31).

3. The filter element ejection structure according to claim 2, characterized in that: The filter element assembly (4) includes a filter element (41) disposed in the filter bottle (2) and an upper end cap (42) disposed in the center of the filter element (41). The upper end cap (42) and the piston (5) are both disposed in the inner cavity (31).

4. The filter element ejection structure according to claim 2, characterized in that: The piston (5) is provided with a piston seal ring (51) on the outside, which forms a sealing fit with the inner cavity (31).

5. The filter cartridge ejection structure according to claim 4, characterized in that: The upper end cover (42) is provided with a filter element sealing ring (43) on the outside, and the filter element assembly (4) is sealed to the valve core (3) through the filter element sealing ring (43).

6. The filter cartridge ejection structure according to claim 5, characterized in that: Both the piston seal (51) and the filter element seal (43) are O-rings.

7. The filter element ejection structure according to claim 2, characterized in that: The length of the spring (6) is such that when the filter bottle (2) is opened, the piston (5) can be pushed to the bottom end face of the inner cavity (31).

8. The filter element ejection structure according to claim 1, characterized in that: The piston (5) has a groove (52), and one end of the spring (6) is locked in the groove (52).

9. The filter element ejection structure according to claim 2, characterized in that: The machine head (1) is equipped with an inlet pipe (11) and an outlet pipe (12). The inlet pipe (11) is in contact with the inlet, and the outlet pipe (12) is in contact with the outlet.

10. A water purifier, characterized in that: Includes the filter cartridge ejection structure as described in any one of claims 1-9.

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