Water leakage prevention filter element of water dispenser

Abstract

The utility model discloses an anti-leakage filter element of a water dispenser, which relates to the technical field of filter elements and comprises a filter bottle, a filter element and a sealing cover, the filter element is mounted inside the filter bottle, the sealing cover is clamped at the top of the filter bottle, a bulge is arranged in the center of the top of the filter bottle, a water outlet is arranged on the bulge, a water inlet is further arranged at the top of the filter bottle, and the water inlet is communicated with the filter bottle. The water outlet and the water inlet are both internally provided with water leakage prevention machine cores, the water leakage prevention machine cores play a role in preventing leakage of the water outlet and the water inlet, a water inlet pipe and a water outlet pipe are installed on the side wall of the sealing cover, and a filter element base assembly corresponding to the water outlet and the water inlet pipe is further arranged in the sealing cover. A gap is reserved between the inner top wall of the sealing cover and the top of the filter bottle, and an existing filter element is lack of a water leakage prevention structure, so that water in the filter element leaks out through a central water outlet of the filter element when a filter element cover is twisted open, and replacement operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to a water leakage-proof filter element for a water dispenser. Background Art

[0002] The water dispenser filter is a device used to filter impurities in the water dispenser. By installing the water dispenser filter, the liquid can reach a certain degree of cleanliness. The filter element has a purification effect through the internal filter material. Since the filter material is a periodic consumable, the filter material inside the filter element often needs to be replaced regularly. The filter elements on the market are mainly straight-through water outlet filter elements. When replacing the filter material inside the filter element, the filter material inside is taken out by unscrewing the filter element cover on the top. However, since the existing filter element lacks a water leakage-proof structure, when the filter element cover is unscrewed, the water in the filter element leaks out through the central water outlet of the filter element, resulting in water overflow everywhere in the water dispenser and on the desktop, which requires manual wiping and cleaning, and is inconvenient for replacement. A solution to the above problem is proposed below. Utility Model Content

[0003] The utility model aims to provide a water dispenser anti-leakage filter element, which solves the problem that the existing filter element proposed in the above background technology lacks an anti-leakage structure, so that when the filter element cover is twisted open, the water in the filter element leaks out through the central water outlet of the filter element, which is convenient for replacement operation.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A water-dispenser anti-leakage filter element, comprising a filter bottle, a filter element and a sealing cover, wherein the filter element is installed inside the filter bottle, the sealing cover is clamped on the top of the filter bottle, a protrusion is provided at the center of the top of the filter bottle, a water outlet is provided on the protrusion, a water inlet is also provided on the top of the filter bottle, an anti-leakage core is installed in the water outlet and the water inlet, the anti-leakage core has a leakage-proof effect on the water outlet and the water inlet, a water inlet pipe and a water outlet pipe are installed on the side wall of the sealing cover, a filter element seat assembly corresponding to the water outlet and the water inlet pipe is also provided inside the sealing cover, and a gap is left between the inner top wall of the sealing cover and the top of the filter bottle.

[0006] Preferably, the anti-leakage movement includes a bracket 1, a bracket fixing ring, a sealing ring fixing frame and a spring bracket, the bracket 1 is fixed on the inner bottom wall of the water outlet and the water inlet, the sealing ring fixing frame is installed on the top of the bracket 1, the bottom of the sealing ring fixing frame is snap-fitted with the top of the bracket 1, the spring bracket is fixed to the top of the sealing ring fixing frame, the spring bracket is slidably arranged inside the bracket 1 and the sealing ring fixing frame, the sealing ring 1 is installed on the outer wall of the sealing ring fixing frame, the sealing ring 2 is installed on the outer wall of the spring bracket, a positioning column is fixed to the bottom of the spring bracket, the positioning column is slidably arranged in the center hole of the bracket 1, a spring 1 is installed at the bottom of the spring bracket, one end of the spring 1 is fixed to the spring bracket, and the other end of the spring 1 is fixed to the inner bottom of the bracket 1.

[0007] Preferably, the filter element seat assembly includes a top support member, two hollow sleeves, two positioning members, two sliding rods, two connecting springs and a top column. The top support member is fixedly mounted on the inner top wall of the sealing cover, the two hollow sleeves are fixedly mounted on the inner bottom wall of the top support member, the sliding rod is fixed to the top of the positioning member, the top column is fixed to the bottom of the positioning member, one end of the sliding rod away from the positioning member is slidably arranged in the hollow sleeve, one end of the connecting spring is fixed to the top of the positioning member, the other end of the connecting spring is fixed to the outer wall of the hollow sleeve, and a sealing ring is fixedly connected to the outer wall of the positioning member.

[0008] Preferably, the bracket one includes a support ring, a plurality of L-shaped connecting strips and a hollow sleeve two, each of the L-shaped connecting strips is fixed at the bottom of the support ring, one end of each of the L-shaped connecting strips away from the support ring is fixedly connected to the outer wall of the hollow sleeve two, and one end of the positioning column is slidably disposed in the hollow sleeve two.

[0009] Preferably, a plurality of extension plates are fixed on the side walls of the top column, and the bottoms of the extension plates are in a conical structure.

[0010] Preferably, a sealing ring four is also installed on the outer wall of the protrusion, and the sealing ring four is snap-fitted with the sealing cover.

[0011] Preferably, a sealing ring 5 is also installed on the top side wall of the filter bottle, and the sealing ring 5 is snap-fitted with the sealing cover.

[0012] Beneficial effect: a water-leakage-proof mechanism is installed in the water inlet, and the spring bracket of the water-leakage-proof mechanism can be pushed to move by water pressure, so that water can flow into the filter bottle through the water-leakage-proof mechanism. When the water inlet pipe is no longer inletting water, the water-leakage-proof mechanism will be reset by connecting spring 2 to block the water inlet to prevent water leakage. During the installation of the sealing cover, the top column at the bottom of the filter element seat assembly will contact the water-leakage-proof mechanism at the water outlet, and the top column will push the spring bracket to move, so that water can be discharged through the water outlet. When the filter element is replaced, the sealing cover is removed so that the top column is not When the anti-leakage movement is pressed, the anti-leakage movement will automatically reset to start the anti-blocking effect. The filter element seat assembly is provided with two sets of top columns. The top column on one side corresponds to the anti-leakage movement of the water outlet to play the water outlet function of the filter bottle, and the top column on the other side is connected with the water inlet pipe. After the sealing cover is installed, the top column will contact the top of the filter bottle and be compressed. When the filter bottle is removed from the sealing cover, the top column will reset by connecting spring 2, and the positioning piece and sealing ring 3 installed on the upper end of the top column can seal the water outlet at the bottom of the sealing cover to prevent the remaining water in the outlet pipe from leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment;

[0014] Figure 2 This is a schematic diagram of the embodiment used to show the matching structure of the filter element seat assembly and the filter bottle after the sealing cover of the filter element body is removed;

[0015] Figure 3 This is a schematic diagram of a half-section structure of a filter element body used to illustrate an embodiment;

[0016] Figure 4 The embodiment is used to show the exploded structure schematic diagram of the anti-leakage movement;

[0017] Figure 5 The embodiment is a schematic cross-sectional structure diagram for showing a water-leakage-proof movement;

[0018] Figure 6 The embodiment is used to show the exploded structure schematic diagram of the filter element seat assembly.

[0019] : 1. filter bottle; 2. filter element; 3. sealing cover; 4. protrusion; 5. water outlet; 6. water inlet; 7. anti-leakage movement; 8. filter element seat assembly; 9. bracket one; 10. bracket fixing ring; 11. sealing ring fixing frame; 12. spring bracket; 13. sealing ring one; 14. sealing ring two; 15. positioning column; 16. spring one; 17. top support member; 18. hollow sleeve one; 19. positioning member; 20. sliding rod; 21. connecting spring two; 22. sealing ring three; 23. supporting ring; 24. L-shaped connecting strip; 25. hollow sleeve two; 26. extension plate; 27. sealing ring four; 28. sealing ring five; 29. ​​top column. DETAILED DESCRIPTION

[0020] See Figure 1 and 3 As shown, a leak-proof filter element 2 for a water dispenser comprises a filter bottle 1, a filter element 2 and a sealing cover 3. The filter element 2 is installed inside the filter bottle 1. When installing the filter element 2, the bottom of the filter bottle 1 can be opened first so that the filter element 2 can be installed into the filter bottle 1 through the bottom of the filter bottle 1. The sealing cover 3 is snap-fitted to the top of the filter bottle 1. A sealing ring 5 28 is also installed on the top side wall of the filter bottle 1. The sealing ring 5 28 is snap-fitted with the sealing cover 3. By installing the sealing ring 5 28, a tight connection between the sealing cover 3 and the filter bottle 1 is achieved. The sealing ring 5 28 can also play a leak-proof effect.

[0021] A water inlet pipe and a water outlet pipe are installed on the side wall of the sealing cover 3, and the water inlet pipe and the water outlet pipe will be connected to an external pipe to realize continuous water supply, filtration and water discharge for the filter bottle 1. A water inlet 6 is provided on the top of the filter bottle 1, and a protrusion 4 is provided in the center of the top of the filter bottle 1, and a water outlet 5 is provided on the protrusion 4. By designing the structure of the protrusion 4, the water inlet and water outlet of the filter bottle 1 can be separated to prevent the unfiltered water from mixing with the filtered water. A sealing ring four 27 is also installed on the outer wall of the protrusion 4. The sealing ring four 27 is snap-fitted with the sealing cover 3. The design of the sealing ring four 27 can better play a sealing role. A water leakage-proof movement 7 is installed in the water outlet 5 and the water inlet 6, and the water leakage-proof movement 7 plays a role in leak-proofing the water outlet 5 and the water inlet 6.

[0022] The water to be filtered will enter the sealing cover 3 through the water inlet pipe. A connecting groove communicating with the water inlet pipe and the filter bottle 1 is provided at the inner bottom of the sealing cover 3. A gap is left between the inner top wall of the sealing cover 3 and the top of the filter bottle 1. After entering the sealing cover 3, the water will flow into the top of the filter bottle 1 through the connecting groove. The water will flow to the water inlet 6 through the gap between the sealing cover 3 and the filter bottle 1. The water pressure of the water flow will push the internal parts of the anti-leakage movement 7 into position so that the water can enter the filter bottle 1 through the water inlet 6.

[0023] See Figure 3-5As shown, the anti-leakage movement 7 includes a bracket 9, a bracket fixing ring 10, a sealing ring fixing frame 11 and a spring bracket 12. The bracket 9 is fixed on the inner bottom wall of the water outlet 5 and the water inlet 6. The sealing ring fixing frame 11 is installed on the top of the bracket 9. The bottom of the sealing ring fixing frame 11 is snap-fitted with the top of the bracket 9. The spring bracket 12 is fixed on the top of the sealing ring fixing frame 11. The spring bracket 12 is slidably arranged inside the bracket 9 and the sealing ring fixing frame 11. A sealing ring 13 is installed on the outer wall of the sealing ring fixing frame 11. A sealing ring 2 14 is installed on the outer wall of the spring bracket 12. The spring bracket 12 will be in the initial state. Located inside the sealing ring fixing frame 11, the sealing ring fixing frame 11 is blocked by the cooperation between the spring bracket 12 and the sealing ring 2 14, and the cooperation between the bracket fixing ring 10, the sealing ring fixing frame 11 and the sealing ring 1 13 realizes the external sealing of the water-leakage-proof movement 7. When water enters the water inlet 6, the water pressure will contact the spring bracket 12 through the center holes of the bracket fixing ring 10 and the sealing ring fixing frame 11, and the water pressure will push the spring bracket 12 to move, so that the spring bracket 12 leaves the sealing ring fixing frame 11 and no longer seals the sealing ring fixing frame 11, and the water flow will flow into the water inlet 6 through the bracket 1 9.

[0024] A positioning column 15 is fixed to the bottom of the spring bracket 12, and the positioning column 15 is slidably arranged in the center hole of the bracket 9. A spring 16 is installed at the bottom of the spring bracket 12, one end of the spring 16 is fixed to the spring bracket 12, and the other end of the spring 16 is fixed to the inner bottom of the bracket 9. By installing the positioning column 15, the movement of the spring bracket 12 can be limited, so that the spring bracket 12 can move in a straight line, which is convenient for the subsequent resetting of the spring bracket 12. The spring bracket 12 will squeeze the spring 16 during the movement, so that the spring 16 generates elastic force. When water is no longer entering the water inlet 6, the spring 16 is no longer squeezed. The spring bracket 12 is reset by the elastic force of the spring 16, so that the spring bracket 12 can re-seal the sealing ring fixing frame 11.

[0025] The bracket 9 includes a support ring 23, a plurality of L-shaped connecting strips 24 and a hollow sleeve 25. Each L-shaped connecting strip 24 is fixed at the bottom of the support ring 23. One end of each L-shaped connecting strip 24 away from the support ring 23 is fixedly connected to the outer wall of the hollow sleeve 25. One end of the positioning column 15 is slidably set in the hollow sleeve 25. The setting of the hollow sleeve 25 facilitates the movement of the positioning column 15. The hollow sleeve 25 and the support ring 23 are connected by the L-shaped connecting strip 24, so that the side wall of the bracket 9 is a hollow structure to facilitate the subsequent entry of water.

[0026] See Figure 2 , 3As shown in Figure 6, the interior of the sealing cover 3 is also provided with a filter cartridge seat assembly 8 corresponding to the water outlet 5 and the water inlet pipe. After the sealing cover 3 is installed, the filter cartridge seat assembly 8 has one side corresponding to the water outlet 5 and the other side corresponding to the connecting groove. The filter cartridge seat assembly 8 includes a top support member 17, two hollow sleeves 18, two positioning members 19, two slide bars 20, two connecting springs 21 and a top column 29. The top support member 17 is fixedly mounted on the inner top wall of the sealing cover 3, and the two hollow sleeves 18 are fixedly mounted on the top support member. On the inner bottom wall of 17, the slide bar 20 is fixed on the top of the positioning member 19, the top column 29 is fixed on the bottom of the positioning member 19, and the end of the slide bar 20 away from the positioning member 19 is slidably set in the hollow sleeve 18, one end of the connecting spring 21 is fixed to the top of the positioning member 19, and the other end of the connecting spring 21 is fixed to the outer wall of the hollow sleeve 18. The outer wall of the positioning member 19 is fixedly connected with a sealing ring 3 22. During the installation process of the sealing cover 3, the top column 29 on one side of the bottom of the filter element 2 seat assembly will be in contact with the anti-leakage mechanism of the water outlet 5. The top column 29 will be inserted into the bracket fixing ring 10 and the sealing ring fixing frame 11, and the bottom of the top column 29 will contact the spring bracket 12. The bottom of the top column 29 will be inserted into the groove at the top of the spring bracket 12. As the sealing cover 3 continues to press down, the top column 29 will push the spring bracket 12 to slide, so that the spring bracket 12 leaves the sealing ring fixing frame 11, so that the filtered water can be discharged through the water outlet 5 and will flow out through the water outlet pipe of the sealing cover 3. The top column 29 is just in contact with the spring bracket 1 2, when encountering resistance, the top column 29 will push the slide bar 20 in the opposite direction through the positioning member 19 to slide in the hollow sleeve 18. During the sliding process of the positioning member 19, the connecting spring 21 will be squeezed, and the connecting spring 21 will generate elastic force, thereby buffering the movement of the top column 29. A plurality of extension plates 26 are fixed on the side wall of the top column 29, and the bottom of the extension plate 26 is a cone-shaped structure. By installing the extension plate 26 on the side wall of the top column 29, the spring bracket 12 can be better pushed to move.

[0027] The top column 29 on the other side is set in the connecting groove. After the sealing cover 3 is installed, the top column 29 will contact the top of the filter bottle 1 and be compressed. When the filter bottle 1 is removed from the sealing cover 3, the top column 29 will be reset by connecting the spring 21. The positioning piece 19 and the sealing ring 3 22 installed on the upper end of the top column 29 can seal the connecting groove to prevent the remaining water in the outlet pipe from leaking.

[0028] Working principle: when installing the filter element 2, the filter element 2 can be first installed into the filter bottle 1 through the bottom of the filter bottle 1. After the filter element 2 is installed, the sealing cover 3 can be installed on the top of the filter bottle 1 and connected to the top of the filter bottle 1 through the sealing cover 3. The two sides of the sealing cover 3 will be connected to the external water inlet pipe and the water outlet pipe respectively. Since the sealing cover 3 and the top of the filter bottle 1 are not tightly fitted, the water will flow into the top of the filter bottle 1 through the sealing cover 3 and then enter the filter bottle 1 through the water inlet 6 to be filtered by the filter element 2. A water leakage prevention mechanism 7 is installed in the water inlet 6. The spring bracket 12 of the water leakage prevention mechanism 7 can be pushed to move by water pressure, so that the water can enter the filter bottle 1 through the water leakage prevention mechanism 7. When the water inlet pipe is no longer inletting water, the water leakage prevention mechanism 7 will be reset by connecting the spring 21 to block the water inlet 6 to achieve water leakage prevention. During the installation of the sealing cover 3, the top column at the bottom of the filter element seat assembly 8 When the filter bottle 1 is removed from the sealing cover 3, the top column 29 will be reset by connecting the spring 21, and the positioning piece 19 and the sealing ring 3 22 installed on the upper end of the top column 29 can seal the connecting groove at the bottom of the sealing cover 3 to prevent the remaining water in the water outlet pipe from leaking.

Claims

1. A water dispenser anti-leakage filter element, comprising a filter bottle (1), a filter element (2) and a sealing cover (3), characterized in that: The filter element (2) is installed inside the filter bottle (1), and the sealing cover (3) is clamped on the top of the filter bottle (1). A protrusion (4) is provided at the center of the top of the filter bottle (1), and a water outlet (5) is provided on the protrusion (4). A water inlet (6) is also provided on the top of the filter bottle (1). A water leakage prevention core (7) is installed in the water outlet (5) and the water inlet (6). The water leakage prevention core (7) plays a role in preventing the water outlet (5) and the water inlet (6) from leaking. A water inlet pipe and a water outlet pipe are installed on the side wall of the sealing cover (3). A filter element seat assembly (8) corresponding to the water outlet (5) and the water inlet pipe is also provided inside the sealing cover (3), and a gap is left between the inner top wall of the sealing cover (3) and the top of the filter bottle (1).

2. A water dispenser anti-leakage filter element according to claim 1, characterized in that: The anti-leakage movement (7) comprises a bracket (9), a bracket fixing ring (10), a sealing ring fixing frame (11) and a spring bracket (12); the bracket (9) is fixed on the inner bottom wall of the water outlet (5) and the water inlet (6); the sealing ring fixing frame (11) is installed on the top of the bracket (9); the bottom of the sealing ring fixing frame (11) is snap-fitted with the top of the bracket (9); the spring bracket (12) is fixed on the top of the sealing ring fixing frame (11); the spring bracket (12) is slidably arranged between the bracket (9) and the sealing ring fixing frame (11), a sealing ring 1 (13) is installed on the outer wall of the sealing ring fixing frame (11), a sealing ring 2 (14) is installed on the outer wall of the spring bracket (12), a positioning column (15) is fixed at the bottom of the spring bracket (12), and the positioning column (15) is slidably arranged in the center hole of the bracket 1 (9), and a spring 1 (16) is installed at the bottom of the spring bracket (12), one end of the spring 1 (16) is fixed to the spring bracket (12), and the other end of the spring 1 (16) is fixed to the inner bottom of the bracket 1 (9).

3. The water dispenser anti-leakage filter element according to claim 1, characterized in that: The filter element seat assembly (8) comprises a top support member (17), two hollow sleeves (18), two positioning members (19), two sliding rods (20), two connecting springs (21) and two top columns (29), wherein the top support member (17) is fixedly mounted on the inner top wall of the sealing cover (3), the two hollow sleeves (18) are fixedly mounted on the inner bottom wall of the top support member (17), the sliding rod (20) is fixed on the top of the positioning member (19), the top column (29) is fixed on the bottom of the positioning member (19), the end of the sliding rod (20) away from the positioning member (19) is slidably arranged in the hollow sleeve (18), one end of the connecting spring (21) is fixed to the top of the positioning member (19), the other end of the connecting spring (21) is fixed to the outer wall of the hollow sleeve (18), and a sealing ring (22) is fixedly connected to the outer wall of the positioning member (19).

4. A water dispenser anti-leakage filter element according to claim 2, characterized in that: The bracket (9) comprises a support ring (23), a plurality of L-shaped connecting strips (24) and a hollow sleeve (25), each of the L-shaped connecting strips (24) being fixed to the bottom of the support ring (23), and one end of each of the L-shaped connecting strips (24) away from the support ring (23) being fixedly connected to the outer wall of the hollow sleeve (25), and one end of the positioning column (15) being slidably arranged in the hollow sleeve (25).

5. The water dispenser anti-leakage filter element according to claim 3, characterized in that: A plurality of extension plates (26) are fixed on the side wall of the top column, and the bottom of the extension plates (26) is a cone-shaped structure.

6. A water dispenser anti-leakage filter according to any one of claims 1 to 3, characterized in that: A sealing ring four (27) is also installed on the outer wall of the protrusion (4), and the sealing ring four (27) is snap-fitted with the sealing cover (3).

7. A water dispenser anti-leakage filter element according to claim 6, characterized in that: A sealing ring five (28) is also installed on the top side wall of the filter bottle (1), and the sealing ring five (28) is snap-fitted with the sealing cover (3).

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