Whole house filter bottle
By using a mechanical leak protection mechanism that utilizes expansion cotton and a movable base to block the water inlet channel, the problem of power dependence and misjudgment in whole-house water purifier leak protection devices is solved, achieving stable and convenient leak protection and improved structural strength.
Patent Information
- Application Number
- CN202422787693.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing whole-house water purifiers require a power connection for their leak protection devices, which makes installation inconvenient, prone to misjudgment, and unstable in use.
The water leakage protection mechanism adopts a mechanical structure, including an expansion cotton, a movable seat, and a baffle. Water flow guides the expansion cotton, which expands and lifts the movable seat. The baffle blocks the water inlet channel, thus achieving water leakage protection and avoiding dependence on power supply.
It achieves stable leakage protection without the need for power supply, is easy to install, reduces the risk of misjudgment, reduces the frequency of filter replacement, and improves structural strength.
Smart Images

Figure CN223620187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purification and filtration equipment, and in particular to a whole-house filter bottle. Background Technology
[0002] A whole-house water purifier is installed at the main water inlet of a household to provide purified water throughout the home. Its core technologies primarily include ultrafiltration membranes and RO reverse osmosis membranes. Ultrafiltration membrane purifiers effectively remove harmful substances such as rust, sediment, viruses, large organic molecules, and heavy metals that are secondary pollutants acquired during municipal tap water transportation, while retaining beneficial minerals and trace elements. They also provide a large flow rate of water. RO membrane purifiers, on the other hand, require a storage tank to store water for household use. Since the filter bottles for whole-house systems are installed at the main water inlet, leaks can cause significant flooding and damage. Currently, leak protection in this field mainly relies on electronic touch control. Sensors are installed at potential leak points; if a leak is detected, the sensor sends a signal to a water circuit cut-off mechanism, which shuts off the water supply, thus achieving leak protection. However, this method requires a power connection, making installation inconvenient. Furthermore, damp surfaces may cause false alarms, resulting in inconsistent performance. Utility Model Content
[0003] The purpose of this invention is to provide a whole-house filter bottle to solve the above-mentioned problems.
[0004] This utility model achieves the above objectives through the following technical solutions:
[0005] A whole-house filter bottle includes a bottle body with a backwashing mechanism installed at the bottom. A dust cover is provided around the bottle body and the backwashing mechanism. The dust cover includes a lower cover and an upper cover. The backwashing mechanism is located inside the lower cover, and the bottle body is located inside the upper cover. A water inlet channel is provided on one side of the backwashing mechanism. A vertical pipe is installed at the bottom of the water inlet channel and is fixedly connected to the backwashing mechanism. A leakage protection mechanism is installed inside the vertical pipe. The leakage protection mechanism includes a sleeve installed inside the vertical pipe. A movable seat is slidably connected inside the sleeve. An expansion cotton is provided at the bottom of the movable seat, and a sealing ring is provided at the top of the movable seat. A spring is fixedly connected between the movable seat and the sealing ring. A movable rod is fixedly connected to the top of the movable seat, and a baffle is fixedly connected to the top of the movable rod. The movable rod passes through the sealing ring. A central column is slidably connected to the baffle, extending radially through the water inlet channel. The central column is fixedly connected inside the water inlet channel and has a through hole that coincides with the water inlet channel. The baffle extends radially through the through hole.
[0006] Preferably, the top of the bottle is connected to a top cap by threads, and the bottom of the bottle is connected to a bottom cap by threads.
[0007] Preferably, a sealing rubber gasket is provided between the lower cover and the upper cover.
[0008] Preferably, the bottom of the mounting vertical pipe is threaded with a support cover, and the support cover has a water inlet hole.
[0009] The beneficial effects are as follows: When the bottle leaks, the upper cover prevents water from splashing out and directs the water into the lower cover. The expansion cotton expands upon contact with the water in the lower cover, lifting the movable seat upwards. This causes the movable rod and baffle to move upwards, blocking the through-hole and disconnecting the water inlet, thus providing leak protection. This structure requires no electricity, eliminates the risk of false alarms, is easy to install, and offers more stable operation. The backwashing mechanism reduces the frequency of filter replacement, lowering operating costs. The top and bottom of the bottle are threaded together with a top cap and bottom cap, avoiding the stress problems present at the bottom of traditional filter bottles, significantly improving structural strength and reducing the risk of leakage.
[0010] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description
[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0012] Figure 1 This is a perspective view of a whole-house filter bottle as described in this utility model;
[0013] Figure 2 This is a three-dimensional view of the internal structure of the protective shell of a whole-house filter bottle as described in this utility model;
[0014] Figure 3 This is a cross-sectional view of the bottle body of a whole-house filter bottle as described in this utility model;
[0015] Figure 4 This is a perspective view of the bottle body of a whole-house filter bottle as described in this utility model;
[0016] Figure 5 This is a cross-sectional view of the leakage protection mechanism of a whole-house filter bottle as described in this utility model;
[0017] Figure 6 This is an enlarged view of section A of the whole-house filter bottle described in this utility model;
[0018] Figure 7 This is a cross-sectional view of the lower casing of a whole-house filter bottle as described in this utility model.
[0019] The reference numerals in the attached drawings are explained as follows: 1. Lower cover; 2. Upper cover; 3. Bottle body; 301. Top cover; 302. Bottom cover; 4. Backwashing mechanism; 5. Water inlet channel; 6. Mounting riser; 601. Support cover; 602. Water inlet hole; 7. Leakage protection mechanism; 701. Sleeve; 702. Movable seat; 703. Expansion cotton; 704. Sealing ring; 705. Spring; 706. Movable rod; 707. Baffle; 708. Intermediate column; 709. Through hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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 simplifying the description, and do not indicate or imply that the device or element referred to 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.
[0022] The present invention will be further described below with reference to the accompanying drawings:
[0023] like Figures 1-3As shown, a whole-house filter bottle includes a bottle body 3. A backwashing mechanism 4 is installed at the bottom of the bottle body 3. The structure and working principle of the backwashing mechanism 4 are described in patent document CN217119517U, which is a publicly available technical solution and will not be elaborated here. By setting the backwashing mechanism 4, the frequency of filter replacement can be reduced, thus lowering the cost of filter replacement. The bottle body 3 and the backwashing mechanism 4 are covered with a dust cover, which includes a lower cover 1 and an upper cover 2. The backwashing mechanism 4 is located inside the lower cover 1, and the bottle body 3 is located inside the upper cover 2. A water inlet channel 5 is provided on one side of the backwashing mechanism 4. An installation vertical pipe 6 is fixedly installed at the bottom of the water inlet channel 5 and is fixedly connected to the backwashing mechanism 4. A leakage protection mechanism 7 is provided inside the installation vertical pipe 6. The leakage protection mechanism 7 includes a sleeve 701 installed inside the installation vertical pipe 6. The sleeve 701 is slidably connected to the movable part. The movable seat 702 has an expansion cotton 703 at its bottom, which expands when it comes into contact with water. A sealing ring 704 is provided at the top of the movable seat 702. A spring 705 is fixedly connected between the movable seat 702 and the sealing ring 704. A movable rod 706 is fixedly connected to the top of the movable seat 702. A baffle 707 is fixedly connected to the top of the movable rod 706. The movable rod 706 passes through the sealing ring 704 and can move up and down relative to the sealing ring 704. A middle column 708 is slidably connected to the baffle 707. The middle column 708 passes through the water inlet channel 5 radially and is fixedly connected inside the water inlet channel 5. A through hole 709 is opened on the middle column 708 that coincides with the water inlet channel 5. The baffle 707 passes through the through hole 709 radially and is used to block the through hole 709, thereby cutting off the water inlet channel 5.
[0024] The bottom of the mounting vertical tube 6 is threaded with a support cover 601. The support cover 601 has a water inlet hole 602. The support cover 601 encapsulates the leakage protection mechanism 7 inside the mounting vertical tube 6. The support cover 601 is a certain distance away from the bottom of the lower cover 1. When the bottle 3 leaks, the upper cover 2 prevents water from splashing and guides the water into the lower cover 1. The water enters the sleeve 701 through the water inlet hole 602. The expansion cotton 703 expands after contacting the water, thereby pushing the movable seat 702 upward, so that the baffle 707 enters the through hole 709 and blocks the through hole 709, thereby cutting off the water inlet channel 5 and realizing leakage protection.
[0025] The top of the bottle body 3 is connected to the top cap 301 by threads, and the bottom of the bottle body 3 is connected to the bottom cap 302 by threads. The threaded connection replaces the traditional one-time injection molding process of the bottom of the filter bottle. Due to the one-time injection molding of the traditional filter bottle, the stress in the arc structure at the bottom cannot be released, which is prone to cracking. The threaded connection can avoid the stress problem at the bottom of the traditional filter bottle and greatly improve the structural strength. A sealing rubber gasket is set between the lower cover 1 and the upper cover 2 to ensure the sealing performance.
[0026] Working principle: When bottle 3 leaks, the upper cover 2 prevents water splashing and directs the water to the lower cover 1. After a certain amount of water accumulates in the lower cover 1, the water enters the sleeve 701 through the water inlet 602. The expansion cotton 703 expands upon contact with the water, thereby pushing the movable seat 702 upward. The spring 705 is compressed, and the movable seat 702 drives the movable rod 706 to move upward. The movable rod 706 drives the baffle 707 to move upward, allowing the baffle 707 to enter the through hole 709. The through hole 709 is blocked, thus cutting off the water inlet channel 5 and achieving leakage protection. Then, the support cover 601 is unscrewed, and the expanded cotton 703 is taken out. The movable seat 702 is no longer under upward pressure. The spring 705 rebounds and moves the movable seat 702 downward, thereby moving the baffle 707 downward. The through hole 709 is connected to the water inlet channel 5, and water can enter normally. Then, the new expanded cotton 703 is installed at the bottom of the movable seat 702, and the support cover 601 is screwed on.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A whole-house filter bottle, comprising a bottle body (3), characterized in that: A backwashing mechanism (4) is installed at the bottom of the bottle body (3). The bottle body (3) and the backwashing mechanism (4) are covered with a dust cover. The dust cover includes a lower cover (1) and an upper cover (2). The backwashing mechanism (4) is located inside the lower cover (1). The bottle body (3) is located inside the upper cover (2). A water inlet channel (5) is provided on one side of the backwashing mechanism (4). A vertical pipe (6) is provided at the bottom of the water inlet channel (5). The vertical pipe (6) is fixedly connected to the backwashing mechanism (4). A leakage protection mechanism (7) is provided inside the vertical pipe (6). The leakage protection mechanism (7) includes a sleeve (701) provided inside the vertical pipe (6). A movable seat (702) is slidably connected inside the sleeve (701). An expansion joint is provided at the bottom of the movable seat (702). The movable seat (702) is equipped with a sealing ring (704) at the top. A spring (705) is fixedly connected between the movable seat (702) and the sealing ring (704). A movable rod (706) is fixedly connected to the top of the movable seat (702). A baffle (707) is fixedly connected to the top of the movable rod (706). The movable rod (706) passes through the sealing ring (704). An intermediate column (708) is slidably connected to the baffle (707). The intermediate column (708) passes through the water inlet channel (5) radially. The intermediate column (708) is fixedly connected inside the water inlet channel (5). A through hole (709) is opened on the intermediate column (708) that coincides with the water inlet channel (5). The baffle (707) passes through the through hole (709) radially.
2. A whole-house filter bottle according to claim 1, characterized in that: The top of the bottle body (3) is connected to a top cap (301) by a thread, and the bottom of the bottle body (3) is connected to a bottom cap (302) by a thread.
3. A whole-house filter bottle according to claim 1, characterized in that: A sealing rubber gasket is provided between the lower cover (1) and the upper cover (2).
4. A whole-house filter bottle according to claim 1, characterized in that: The bottom of the installation vertical pipe (6) is threaded with a support cover (601), and the support cover (601) has a water inlet hole (602).
Citation Information
Patent Citations
Filter bottle with backwashing function
CN217119517U