Washable front self-suction head

By designing a detachable filter cover and filter bottle structure, combined with components such as locking rings, control blocks, and magnetic parts, the problem of difficult filter screen removal is solved, enabling convenient disassembly and fixation of the filter bottle system, thus improving the performance and lifespan of the water purifier.

CN223861452UActive Publication Date: 2026-02-03NINGBO CHINUO ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520425232.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-02-03
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

The existing filter bottle and filter cover are fixedly connected, making it difficult to disassemble and replace the filter screen, resulting in the accumulation of dirt in the water and affecting the performance.

Method used

Design a detachable filter cap and filter bottle structure. Through the cooperation of locking ring and control block, the filter bottle, filter cap and filter screen can be detachably connected. The rubber layer increases the friction, the magnetic component provides resistance indication, the acrylic resin layer protects the metal, and the anti-slip stripes facilitate operation.

Benefits of technology

It enables convenient disassembly and fixing of filter bottles, filter caps and filter screens, reduces the accumulation of dirt in water flow, extends service life, and enhances connection stability and ease of operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223861452U_ABST
    Figure CN223861452U_ABST
Patent Text Reader

Abstract

The utility model relates to a cleanable front self-suction head, which comprises a filter bottle and a filter cover detachably connected to the bottom of the filter bottle, the filter bottle is wrapped with a layer of filter screen, the filter cover is rotatably connected with a locking ring, the locking ring is integrally provided with a control block in the direction from the outer ring to the inner ring, and the control block is perpendicular to the locking ring; the end face of the fixing ring is connected with a pressing block, the pressing block has elasticity and can move in the direction close to the filter bottle, and when the control block makes contact with the pressing block, the pressing block tightly presses the filter bottle; the control block is further provided with containing cavities, the number of the containing cavities is the same as that of the pressing blocks, when the pressing blocks are located in the containing cavities, the pressing blocks are separated from the filter bottle, and the filter device has the effects that the filter bottle and the filter cover can be conveniently detached, and the filter screen can be conveniently replaced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of filters, and more particularly to a washable pre-priming head. Background Technology

[0002] Currently, water purifier filter bottles are a very important accessory for water purifiers. Their function is to hold filter cartridges to filter water, removing impurities or odors to purify the water. Existing filter bottles consist of two parts: the bottle body and the filter cap.

[0003] Regarding the aforementioned technologies, there are still some shortcomings: most existing filter bottles consist of a filter bottle and a filter cap, with a filter screen wrapped around the filter bottle. However, the existing filter screens are all fixedly connected to the filter bottle, making it difficult for users to remove the filter screen when they need to replace it. This results in a large amount of dirt in the subsequent water flow, which cannot meet the needs of daily use. Therefore, improvements are still needed. Utility Model Content

[0004] To facilitate the disassembly of the filter bottle and filter cap and the replacement of the filter screen, this application provides a washable pre-priming head.

[0005] This application provides a washable front-mounted self-priming head, which adopts the following technical solution:

[0006] A washable pre-priming self-priming head includes a filter bottle and a filter cap detachably connected to the bottom of the filter bottle. A filter screen is wrapped around the filter bottle. A locking ring is rotatably connected to the filter cap. A control block is integrally formed from the outer ring inwards from the locking ring, and the control block is perpendicular to the locking ring. A pressing block is connected to the end face of the locking ring. The pressing block is elastic and can move towards the filter bottle. When the control block contacts the pressing block, the pressing block presses the filter bottle. The control block also has a number of receiving cavities equal to the number of pressing blocks. When the pressing block is located within a receiving cavity, the pressing block separates from the filter bottle.

[0007] By adopting the above technical solution, when the user needs to fix the filter bottle, filter cap, and filter screen, the filter screen can be inserted into the recessed groove first to achieve initial fixation. Then, the user combines the filter bottle and filter screen, and by rotating the locking ring and control block, the control block presses the pressing block to fix the filter screen and filter bottle, thus achieving a relatively fixed connection between the three. When the user needs to separate the filter bottle, filter cap, and filter screen, they only need to rotate the control block and locking ring in the opposite direction to make the pressing block rotate into the receiving cavity, which can achieve the separation of the filter bottle, filter cap, and filter screen.

[0008] Optionally, the side of the pressing block facing the filter bottle is also bonded with a rubber layer.

[0009] By adopting the above technical solution, the rubber layer increases the friction of the pressing block on the filter bottle, enhances the connection stability between the filter bottle and the filter cover, and reduces the possibility of the filter bottle and filter cover separating due to vibration.

[0010] Optionally, the pressing block is provided with a beveled surface on the side away from the rubber layer, so that the thickness of the pressing block is thinner as it gets closer to the fixing point with the filter cover; the beveled surface is coated with a layer of acrylic resin.

[0011] By adopting the above technical solution, the acrylic resin layer prevents moisture, pollutants and other contaminants from damaging the metal, effectively protecting the metal object and extending its service life.

[0012] Optionally, the filter cover has a magnetic component connected to the end with the pressing block and the locking ring near the cavity opening. The magnetic component can be magnetically connected to the locking ring. When the cavity and the pressing block are misaligned, the magnetic component contacts the locking ring.

[0013] By adopting the above technical solution, the magnetic force generated when the magnetic components come into contact with each other will tell the user that the pressing block can press the filter bottle with the filter screen. If the pressing block is rotated further, the user will feel obvious resistance, thus reminding the user.

[0014] Optionally, the outer ring wall of the control block has a circumferential array of multiple anti-slip stripes.

[0015] By adopting the above technical solution, users can easily rotate the control block when needed.

[0016] Optionally, the filter bottle has a recessed groove at the end away from the filter cover for inserting the filter screen.

[0017] By adopting the above technical solution, one end of the filter screen can be embedded in the recessed groove, thereby achieving a preliminary fixed connection of the filter screen. The other end of the filter screen is placed on the filter cover and positioned between the filter bottle and the filter cover.

[0018] In summary, the beneficial technical effects of this application are as follows: when the user needs to fix the filter bottle, filter cap, and filter screen, the filter screen can be inserted into the recessed groove first to achieve initial fixation. Then, the user combines the filter bottle and filter screen, and by rotating the locking ring and control block, the control block presses the pressing block to press and fix the filter screen and filter bottle, thus achieving a relatively fixed connection between the three. When the user needs to separate the filter bottle, filter cap, and filter screen, they only need to rotate the control block and locking ring in the opposite direction to make the pressing block rotate into the receiving cavity, thereby separating the filter bottle, filter cap, and filter screen. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the hidden filter structure in an embodiment of this application.

[0021] Figure 3 This is an exploded structural diagram of the filter bottle and filter cap according to an embodiment of this application.

[0022] Figure 4 This is an exploded structural diagram of the filter bottle, filter cap, and locking ring in the embodiments of this application.

[0023] Figure 5 This is a partial cross-sectional schematic diagram highlighting the internal structure of the locking ring and control block in an embodiment of this application.

[0024] Reference numerals: 1. Filter bottle; 2. Filter cap; 3. Filter screen; 4. Locking ring; 5. Control block; 6. Pressing block; 7. Receiving cavity; 8. Rubber layer; 9. Beveled surface; 10. Acrylic resin layer; 11. Magnetic component; 12. Anti-slip stripe; 13. Recessed groove. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses a washable front-mounted self-priming head. (Refer to...) Figure 1 , Figure 2 As shown, a washable pre-priming head includes a filter bottle 1 and a filter cap 2 detachably connected to the bottom of the filter bottle 1. A filter screen 3, which performs a filtering function, is also installed between the filter bottle 1 and the filter cap 2. The filter screen 3 is also detachably connected to the filter bottle 1.

[0027] Reference Figure 2 , Figure 3As shown, a recessed groove 13 is provided at the end of the filter bottle 1 away from the filter screen 3, and the end of the filter screen 3 can be inserted into the recessed groove 13, thereby achieving a preliminary fixed connection of the filter screen 3. The other end of the filter screen 3 is mounted on the filter cover 2 and positioned between the filter bottle 1 and the filter cover 2.

[0028] Reference Figure 2 , Figure 4 as well as Figure 5 As shown, a locking ring 4 is rotatably connected to the side of the filter cap 2 facing the filter bottle 1. The locking ring 4 is integrally formed from the outer ring to the inner ring by a control block 5. The control block 5 is perpendicular to the locking ring 4 and its sidewall is L-shaped. A pressing block 6 is also movably connected to the filter cap 2. One end of the pressing block 6 is fixedly connected to the filter cap 2, and the pressing block 6 is elastic and can be pushed towards the filter bottle 1.

[0029] The control block 5 also has the same number of receiving cavities 7 as the pressing block 6. When the pressing block 6 is in the receiving cavity 7, there is a gap between the pressing block 6 and the filter bottle 1. The pressing block 6 cannot press the filter bottle 1 tightly, and the pressing block 6 cannot fix the filter screen 3.

[0030] However, a beveled surface 9 is provided on the side of the pressing block 6 away from the filter bottle 1. The opening of the beveled surface 9 makes the thickness of the end of the pressing block 6 that is fixedly connected to the filter cover 2 gradually thicken towards the end away from the end of the pressing block 6 that is fixedly connected to the filter cover 2.

[0031] When the user rotates the control block 5, it comes into contact with the pressing block 6. As the user continues to rotate the control block 5, the thickness of the pressing block 6 gradually increases, and the control block 5 gradually squeezes the pressing block 6, forcing the pressing block 6 to compress the filter bottle 1 and the filter screen 3. This serves to fix the filter bottle 1 and the filter screen 3 in place.

[0032] Reference Figure 1 , Figure 4 as well as Figure 5 As shown, magnetic components 11 are fixedly connected to the sides of the filter cover 2 and the locking ring 4 that are close to each other. These magnetic components 11 can attract each other. When the user rotates the control block 5, causing the receiving cavity 7 and the pressing block 6 to be misaligned, the magnetic components 11 will come into contact with each other to achieve a positioning effect.

[0033] If the user needs to separate the filter bottle 1 from the filter cap 2, they only need to rotate the locking ring 4 and the control block 5 in the opposite direction and place the pressing block 6 into the receiving cavity 7. After placing the pressing block 6 into the receiving cavity 7, if the user continues to rotate in that direction, the pressing block 6 will abut against the control block 5, thus restricting the control block 5 from continuing to rotate in that direction.

[0034] Reference Figure 2 , Figure 4 as well as Figure 5 As shown, a rubber layer 8 is also bonded to the side of the pressing block 6 facing the filter bottle 1. The rubber layer 8 increases the friction between the pressing block 6 and the filter bottle 1, enhances the connection stability between the filter bottle 1 and the filter cover 2, and reduces the possibility of the filter bottle 1 and the filter cover 2 detaching due to vibration.

[0035] Meanwhile, multiple anti-slip stripes 12 are also provided on the outer wall of the control block 5. The anti-slip stripes 12 are arranged in a circumferential array on the outer wall of the control block 5, which makes it convenient for the user to rotate the control block 5 when needed.

[0036] Reference Figure 2 , Figure 4 as well as Figure 5 As shown, an acrylic resin layer 10 is coated on the surface of the beveled surface 9. The acrylic resin layer 10 prevents moisture, contaminants, etc. from damaging the metal, effectively protecting the metal object and extending its service life.

[0037] This application discloses a washable front-mounted self-priming head. The implementation principle is as follows: When the user needs to fix the filter bottle 1, filter cap 2, and filter screen 3, the filter screen 3 can be inserted into the recessed groove 13 to initially fix it. Then, the user combines the filter bottle 1 and filter screen 3, and rotates the locking ring 4 and control block 5. The control block 5 then presses the pressing block 6, causing the pressing block 6 to press and fix the filter screen 3 and filter bottle 1, thus achieving a relatively fixed connection between the three. When the user needs to separate the filter bottle 1, filter cap 2, and filter screen 3, they only need to rotate the control block 5 and locking ring 4 in the opposite direction, causing the pressing block 6 to rotate into the receiving cavity 7, thus separating the filter bottle 1, filter cap 2, and filter screen 3.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A washable pre-priming self-priming head, comprising a filter bottle (1) and a filter cap (2) detachably connected to the bottom of the filter bottle (1), wherein a filter screen (3) is wrapped around the filter bottle (1), characterized in that: A locking ring (4) is rotatably connected to the filter cap (2). A control block (5) is integrally formed on the locking ring (4) from the outer ring inward. The control block (5) is perpendicular to the locking ring (4). A pressing block (6) is connected to the end face of the locking ring. The pressing block (6) is elastic and can move toward the filter bottle (1). When the control block (5) contacts the pressing block (6), the pressing block (6) presses the filter bottle (1). The control block (5) also has a number of receiving cavities (7) the same as the number of pressing blocks (6). When the pressing block (6) is located in the receiving cavity (7), the pressing block (6) separates from the filter bottle (1).

2. The washable front self-priming head according to claim 1, characterized in that: The side of the pressing block (6) facing the filter bottle (1) is also bonded with a rubber layer (8).

3. A washable front-mounted self-priming head according to claim 2, characterized in that: The pressing block (6) is provided with a beveled surface (9) on the side away from the rubber layer (8), so that the thickness of the pressing block (6) is thinner as it gets closer to the fixing point with the filter cover (2); the surface of the beveled surface (9) is coated with an acrylic resin layer (10).

4. A washable front-mounted self-priming head according to claim 3, characterized in that: The filter cover (2) has a magnetic component (11) connected to one end of the pressing block (6) and the locking ring (4) near the cavity opening of the receiving cavity (7). The magnetic component (11) can be magnetically connected to the locking ring (4). When the receiving cavity (7) and the pressing block (6) are misaligned, the magnetic component (11) contacts the locking ring (4).

5. A washable front-mounted self-priming head according to claim 1, characterized in that: The outer ring wall of the control block (5) has a circumferential array of multiple anti-slip stripes (12).

6. A washable front-mounted self-priming head according to claim 1, characterized in that: The filter bottle (1) has a recessed groove (13) at the end away from the filter cover (2) for the filter screen (3) to be inserted.