WO2023024859A1

WO2023024859A1 - External filter for recreational vehicle water tank

Info

Publication number: WO2023024859A1
Application number: PCT/CN2022/109941
Authority: WO
Inventors: 陈娴; 李理
Original assignee: 上海聚蓝水处理科技有限公司
Priority date: 2021-08-26
Filing date: 2022-08-03
Publication date: 2023-03-02
Also published as: CN215841934U

Abstract

An external filter for a recreational vehicle water tank, comprising a housing (8). A lower limiting ring (7) is fixedly arranged at the bottom of the housing (8), an upper limiting ring (5) is arranged at the top of the housing (8), and a filtering mechanism (6) is arranged between the upper limiting ring (5) and the lower limiting ring (7). The filtering mechanism (6) is positioned inside the housing (8). The upper limiting ring (5) is fixedly connected to the lower end of a cross-shaped support (4). The cross-shaped support (4) is sleeved with an annular silicone tube (3). A cover plate (2) is in threaded connection with the top surface of the housing (8). The present filter can filter out bacterial impurities in water and improve water purity.

Description

RV water tank external filter

technical field

The utility model relates to the field of water treatment, in particular to an external filter for a water tank of a caravan.

Background technique

RVs generally have their own water tanks to store water in case they are needed on the road. When adding water to the water tank, if the purity of the added water is low, it is easy to breed bacterial impurities. When water is taken from the water tank, especially after the water in the water tank is stored for a long time, the bacterial impurities in the water will stay with the water again, posing a safety risk.

Utility model content

The purpose of the utility model is to provide an external filter for the water tank of the caravan, so as to solve the above-mentioned technical problems.

The utility model is to solve the above-mentioned technical problem, adopts following technical scheme to realize:

The external filter of the caravan water tank includes a casing, the bottom of the casing is fixed with a lower limit ring, the top of the casing is provided with an upper limit ring, and a filter mechanism is arranged between the upper limit ring and the lower limit ring. The filter mechanism is located in the casing, the upper limit ring is fixedly connected to the lower end of the cross-shaped bracket, the outer casing of the cross-shaped bracket is provided with an annular silicone tube, the cover plate is screwed to the top surface of the casing, and the center of the cover plate runs through the solid An upper connecting pipe is provided, a lower connecting pipe is fixed through the bottom of the housing, and the top of the cross-shaped support is welded to the upper connecting pipe.

Preferably, the filter mechanism includes a filter tube, a top cover, a plug ring, a connecting spring, a filter element, and a slide rail; the plug ring is inserted on the top of the filter tube, the top cover is fixed on the top of the plug ring, and the filter A plurality of disc-shaped filter cores are arranged in the tube, and the adjacent filter cores are fixedly connected by connecting springs, and the connecting spring at the top is fixedly connected with the plug ring, and the inner wall of the filter tube is provided with a A chute, on which a slide block is slidably connected, and the slide block is fixedly connected to the bottom surface of the filter element.

Preferably, an upper filter is fixed at the bottom of the plug ring.

Preferably, a lower filter net is fixed at the bottom of the filter tube.

Preferably, the plug ring is made of silica gel.

Preferably, the number of the filter elements is three.

Preferably, both the bottom surface of the upper limit ring and the top surface of the lower limit ring are provided with filter screens, and the filter tube is filled with filter material. The filter screen is located in the filter tube and pressed against both ends of the filter material.

The beneficial effects of the utility model are:

1. When adding water to the water tank, the utility model can filter out impurities in the added water. Thereby improving the purity of the water in the water tank, reducing the growth of bacterial impurities, etc., when taking the water in the water tank, the utility model can be turned around, and the utility model can be used to filter the water flowing out of the water tank, thereby filtering out the bacterial impurities in the water , to improve the purity of the final obtained water.

2. By removing the plug ring and several filter elements, the filter elements can be cleaned or replaced.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of filter mechanism of the present utility model;

Reference signs: 1, upper connecting pipe; 2, cover plate; 3, annular silicone tube; 4, cross-shaped bracket; 5, upper limit ring; 6, filter mechanism; 7, lower limit ring; 8, shell; 9, 601, top cover; 602, plug ring; 603, connection spring; 604, upper filter screen; 605, filter element; 606, filter tube; 607, slide block; 608, lower filter screen.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments and accompanying drawings, but the following embodiments are only preferred embodiments of the utility model , not all. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without creative efforts all belong to the protection scope of the present utility model.

Describe the specific embodiment of the utility model below in conjunction with accompanying drawing.

Example 1

As shown in Figure 1-2, the external filter of the RV water tank includes a casing 8, a lower limit ring 7 is fixed on the inner bottom of the casing 8, and an upper limit ring 5 is arranged on the inner top of the casing 8, and the upper limit ring 5 and the lower limit ring 7 is provided with a filter mechanism 6, the filter mechanism 6 is located in the shell 8, the upper limit ring 5 and the lower end of the cross-shaped bracket 4 are fixed, the cross-shaped bracket 4 is equipped with an annular silicone tube 3, the cover plate 2 and the top surface of the shell 8 Threaded connection, the upper connecting pipe 1 is fixed through the center of the cover plate 2, and the lower connecting pipe 9 is fixed through the bottom of the shell 8. The filter mechanism 6 is clamped by the upper limit ring 5 and the lower limit ring 7, so that the filter mechanism 6 is effectively fixed, and the top end of the cross-shaped support 4 is welded to the upper connecting pipe 1, where the filter material is relatively thin. By welding, The connection is relatively firm, which can prevent the impact force generated by the water pressure from damaging the filter material.

When in use, cut off the water pipe on the water tank of the car, then connect the upper connecting pipe 1 of the device to the water pipe on one side, and connect the lower connecting pipe 9 to the water pipe on the other side. When adding water or taking water through the water pipe, the water will be filtered by the filter mechanism 6 , to filter the impurities in the water.

Example 2

As shown in Figure 1-2, in the case that other parts are the same as in Embodiment 1, the difference between this embodiment and Embodiment 1 is that the filter mechanism 6 includes a filter tube 606, a top cover 601, a plug ring 602, a connecting spring 603, filter element 605, slide rail 607; the plug ring 602 is plugged on the top of the filter tube 606, the plug ring 602 is made of silica gel, the bottom of the filter tube 606 is fixed with a lower filter net 608, and the bottom of the plug ring 602 is fixed with an upper filter net 604 , the top cover 601 is fixed on the top of the plug ring 602, and a plurality of disc-shaped filter elements 605 are arranged in the filter tube 606. The number of the filter elements 605 is three, and the adjacent filter elements 605 are connected by connecting springs 603. The connecting spring 603 on the top is fixedly connected with the plug ring 602, and the inner wall of the filter tube 606 is provided with a chute along the height direction of the filter tube 606, and a slider 607 is slidably connected to the chute, and the slider 607 is fixedly connected with the bottom surface of the filter element 605, and the upper limit ring Both the bottom surface of 5 and the top surface of the lower limit ring 7 are provided with filter screens, and the filter tube 606 is filled with filter material. Described strainer is positioned at described filter pipe, and is pressed on the two ends of described filter material. The filter material is between the two filter screens, and it is compacted by the filter material to prevent the filter material from being empty or uneven, which may cause the filter material to move or be damaged.

During use, the filter material filled in the filter element 605 and the filter tube 606 can effectively filter impurities in the water, and the filter element 605 can be taken out for cleaning or replaced by removing the plug ring 602 .

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the utility model Under the premise of the spirit and scope, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims

The external filter of the RV water tank includes a casing (8), and is characterized in that a lower limit ring (7) is fixed on the inner bottom of the casing (8), and an upper limit ring (5) is fixed on the inner top of the casing (8). ), a filter mechanism (6) is arranged between the upper limit ring (5) and the lower limit ring (7), the filter mechanism (6) is located in the casing (8), and the upper limit ring (5) and The lower end of the cross-shaped support (4) is affixed, and the outer cover of the cross-shaped support (4) is provided with an annular silicone tube (3), and the cover plate (2) is threadedly connected with the top surface of the shell (8), and the cover plate ( 2) An upper connecting pipe (1) is fixed in the center, a lower connecting pipe (9) is fixed in the bottom of the shell (8), and the top of the cross-shaped bracket (4) is welded to the upper connecting pipe (1).
The external filter for the water tank of the caravan according to claim 1, characterized in that: the filter mechanism (6) includes a filter tube (606), a top cover (601), a plug ring (602), a connecting spring (603), filter element (605), slide rail (607); the plug ring (602) is inserted on the top of the filter tube (606), the top cover (601) is fixed on the top of the plug ring (602), and the filter tube ( 606) is provided with a plurality of disc-shaped filter elements (605), and the adjacent filter elements (605) are connected by connecting springs (603), and the connecting springs (603) at the top are connected to the plug ring ( 602) is fixedly connected, and the inner wall of the filter tube (606) is provided with a chute along the height direction of the filter tube (606), and a slider (607) is slidably connected to the chute, and the slider (607) is connected to the filter element ( 605) the bottom surface is fixed.
The external filter for the water tank of the caravan according to claim 2, characterized in that: an upper filter net (604) is fixed at the bottom of the plug ring (602).
The external filter of the caravan water tank according to claim 2, characterized in that: a lower filter net (608) is fixed at the bottom of the filter pipe (606).
The external filter for the water tank of the caravan according to claim 2, wherein the plug ring (602) is made of silica gel.
The external filter for the water tank of the caravan according to claim 2, characterized in that: the number of the filter elements (605) is three.
The external filter for the RV water tank according to claim 2, characterized in that: the bottom surface of the upper limit ring (5) and the top surface of the lower limit ring (7) are both provided with filter screens, and the inside of the filter pipe (606) Filled with filter material, the filter screen is located in the filter tube and pressed on both ends of the filter material.