Pipeline direct drinking water connector device with water leakage prevention design

Abstract

The utility model discloses a pipeline direct drinking water connector device with a water leakage prevention design, and relates to the technical field of water supply equipment. An existing pipeline direct drinking water connector device only depends on pipe fitting threads or a single gasket for sealing, and looseness and leakage are easily caused by vibration, water pressure fluctuation or thermal expansion and cold contraction. And only single-stage activated carbon or a precise filter element is adopted, so that comprehensive purification of large particles, peculiar smell, residual chlorine, organic matters and microorganisms is difficult to consider. According to the utility model, the external locking sleeve, the locking bolt, the second sealing ring and the first sealing ring are additionally arranged at the direct drinking water connector and are matched with internal threads to realize multiple radial compression sealing on the fine filter screen; the pre-filtering net, the activated carbon adsorption net and the fine filtering net are sequentially installed in the connector, three-stage filter element cascade filtering is constructed through cooperation of the clamping grooves, the supporting ribs and the threads, the connector is stable and free of leakage, and discharged water meets the direct drinking water standard.

Description

Technical Field

[0001] This utility model relates to the field of water supply equipment technology, and specifically discloses a pipe drinking water interface device with a leak-proof design. Background Technology

[0002] With the continuous improvement of urban water supply and drainage networks, piped drinking water connection devices are increasingly widely used in end-point drinking water systems in homes, office buildings, and public places. Existing piped drinking water connection devices typically only have one or two simple filter elements at the connection point, such as a single-stage metal mesh, activated carbon core, or precision filter element, to intercept larger particles, remove some residual chlorine, or improve taste. Meanwhile, the connection point often relies on threaded pipe fittings or simple rubber gaskets for sealing. Due to the lack of a robust locking structure and multiple sealing designs, loosening and leakage problems commonly occur when there is pipe vibration, water pressure fluctuation, or even alternating temperature differences. Furthermore, a single filtration structure cannot achieve comprehensive purification of particulate matter, odors, organic pollutants, and microorganisms, making it difficult to meet the safe drinking requirements for "direct drinking." Existing piped drinking water systems (publication number: CN207775984U) have at least the following drawbacks:

[0003] 1. Existing direct drinking water interface devices rely solely on pipe thread engagement or a single washer, without external locking sleeves or double sealing rings. Under conditions of vibration, water pressure fluctuations, and thermal expansion and contraction, they are prone to loosening and leakage. Therefore, there is an urgent need for a device with a leak-proof design.

[0004] 2. Existing direct drinking water interface devices usually only use single-stage activated carbon or precision filter cartridges, which are not only difficult to intercept suspended solids of different particle sizes, but also unable to systematically remove odors, residual chlorine, organic matter and microorganisms. Therefore, there is an urgent need for a device that can be effectively designed for filtration. Utility Model Content

[0005] The main purpose of this utility model is to provide a pipe drinking water interface device with a leak-proof design, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pipe-mounted drinking water interface device with a leak-proof design, comprising a drinking water pipe, a pre-filter, an activated carbon adsorption screen, a fine filter, a second sealing ring, and a first sealing ring. A drinking water interface is installed in front of the drinking water pipe, a pre-filter is installed inside the drinking water interface, an activated carbon adsorption screen is installed in front of the pre-filter, a fine filter is installed in front of the activated carbon adsorption screen, and a first sealing ring is installed in front of the fine filter.

[0007] Preferably, an external locking sleeve is installed on the outside of the direct drinking water interface.

[0008] Preferably, a second sealing ring is installed in front of the external locking sleeve.

[0009] Preferably, a locking bolt is installed on the external locking sleeve.

[0010] Preferably, the drinking water interface has a threaded front end.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model adds an external locking sleeve to the direct drinking water interface, and configures a second sealing ring and a first sealing ring at the front and rear, which, together with the locking bolt, achieves multiple locking and sealing. Even under conditions of pipe vibration, water pressure fluctuation, or thermal expansion and contraction, the interface can remain tight and leak-proof, significantly improving the sealing reliability of the system.

[0013] 2. This utility model constructs a three-stage filtration structure by sequentially arranging a pre-filter (to remove large suspended particles), an activated carbon adsorption screen (to adsorb residual chlorine, odors, and organic pollutants), and a fine filter (to intercept fine particles and some microorganisms) inside the interface. This design can systematically intercept impurities of different particle sizes, remove odors and harmful substances, and also take into account microbial control, ensuring that the output water meets the safety standards for direct drinking water. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is an enlarged view of part A of the present invention;

[0017] In the diagram: 1. Direct drinking water pipe; 2. External locking sleeve; 3. Direct drinking water interface; 4. Pre-filter screen; 5. Activated carbon adsorption screen; 6. Fine filter screen; 7. Locking bolt; 8. Second sealing ring; 9. First sealing ring; 10. Thread. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example

[0022] Please see Figure 1-3 This utility model provides a technical solution:

[0023] A piped drinking water interface device with a leak-proof design includes a drinking water pipe, a pre-filter, an activated carbon adsorption screen, a fine filter, a second sealing ring, and a first sealing ring. A drinking water interface is installed at the front of the drinking water pipe. A pre-filter is installed inside the drinking water interface. An activated carbon adsorption screen is installed in front of the pre-filter. A fine filter is installed in front of the activated carbon adsorption screen. A first sealing ring is installed in front of the fine filter. An external locking sleeve is installed outside the drinking water interface. A second sealing ring is installed in front of the external locking sleeve. A locking bolt is installed on the external locking sleeve. A thread is provided inside the front of the drinking water interface.

[0024] It should be noted that, firstly, the components of the leak-proof structure are matched as follows: the external locking sleeve and the drinking water interface body: the external locking sleeve is fitted on the outer cylindrical surface of the drinking water interface body, the inner wall of its rear end engages with the outer step on the interface body, and the front end forms an inward stop shoulder to press the second sealing ring.

[0025] The second sealing ring is positioned between the front end of the outer locking sleeve and the outer circular surface of the interface body. When the locking sleeve is pushed forward along the interface body by the locking bolt, its front end stop shoulder compresses the second sealing ring, forming a tight annular seal between the outer surface of the interface body and the inner wall of the locking sleeve.

[0026] The function of the locking bolt: The locking bolt passes through the locking sleeve and is screwed into the threaded hole on the back of the interface body. When the bolt is tightened, the outer locking sleeve is pulled towards the interface body, continuously compressing the second sealing ring and the subsequently installed first sealing ring, achieving a multi-stage radial compression seal.

[0027] The first sealing ring is installed in the inner groove in front of the fine filter screen and the interface body. When the fine filter screen is screwed into the interface body through the internal thread, the first sealing ring is simultaneously pressed into the precision stop inside the interface body, realizing a water seal between the filter assembly and the inner cavity of the interface.

[0028] The above structure works together to form two external compression seals: the external locking sleeve, the second sealing ring, and the first sealing ring; the locking bolts ensure that the external locking sleeve will not loosen during use due to vibration, water pressure fluctuations, or thermal expansion and contraction; and the compression between the fine filter screen and the built-in first sealing ring ensures the water tightness at the water outlet.

[0029] II. Component assembly in a multi-layered filtration structure:

[0030] Pre-filter: At the very front of the interface body's internal cavity, a semi-circular or annular pre-filter is first installed. Behind the pre-filter, activated carbon adsorption meshes are placed sequentially along the axial direction. Several longitudinal support ribs are provided along the inner wall of the interface body. After the activated carbon mesh falls in, it is secured between the support ribs, ensuring a uniform distribution of carbon particles and allowing water flow to circulate effectively, thus improving adsorption efficiency. Fine filter and internal threads: The fine filter is immediately attached behind the activated carbon layer. The outer edge of this fine filter has external threads that mate with the internal threads of the interface body. By screwing it in, it is gradually pressed against the activated carbon layer, and the entire filter unit is watertightly fixed by the pressure of the first sealing ring.

[0031] The pre-filter first intercepts large particles larger than 5μm; the activated carbon adsorption mesh, relying on the full distribution of support ribs, adsorbs residual chlorine, organic matter, and odors; the fine filter mesh, through threaded compression and engagement with the first sealing ring, achieves ultra-precision filtration of ≤5μm and blocks some microorganisms.

[0032] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe-mounted drinking water interface device with a leak-proof design, comprising a drinking water pipe (1), a pre-filter (4), an activated carbon adsorption screen (5), a fine filter (6), a second sealing ring (8), and a first sealing ring (9), characterized in that: A drinking water interface (3) is installed in front of the drinking water pipe (1). A pre-filter (4) is installed inside the drinking water interface (3). An activated carbon adsorption screen (5) is installed in front of the pre-filter (4). A fine filter (6) is installed in front of the activated carbon adsorption screen (5). A first sealing ring (9) is installed in front of the fine filter (6).

2. The piped drinking water interface device with leak-proof design according to claim 1, characterized in that: The drinking water interface (3) is equipped with an external locking sleeve (2).

3. A piped drinking water interface device with a leak-proof design according to claim 2, characterized in that: A second sealing ring (8) is installed in front of the external locking sleeve (2).

4. A piped drinking water interface device with a leak-proof design according to claim 2, characterized in that: The external locking sleeve (2) is fitted with a locking bolt (7).

5. A piped drinking water interface device with a leak-proof design according to claim 1, characterized in that: The direct drinking water interface (3) has a thread (10) at the front inside.

Images