Filter with water leakage prevention function

Abstract

The utility model relates to filter technical field, and disclose a filter with prevent water function, fixed plate is installed in the inboard of cylinder, and the liquid guide cylinder is installed on the cylinder and is connected with fixed plate, and the liquid outlet is set up on the liquid guide cylinder and is located in the inboard of cylinder, the inside fixed connection of liquid guide cylinder has liquid inlet cylinder, and the inboard of liquid inlet cylinder is equipped with filter hole, and one end of liquid guide cylinder is connected with external thread seat through screw thread, and the filter core is installed on the external thread seat, through the liquid into the inside of liquid inlet cylinder, filters through filter hole, can isolate the big granule impurity, then liquid passes through filter hole, filter core and liquid outlet and enters the top of cylinder, because the filter core is covered on the inboard of liquid inlet cylinder, can prevent the impurity and get stuck in the inside of filter hole, avoid the impurity and cause filter hole to be blocked, and through the setting of liquid inlet cylinder, can prevent the impurity and flow out between filter core and liquid guide cylinder, thereby improve the filtering effect of filter.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a filter with a leak-proof function. Background Technology

[0002] During pipeline installation, check valves are often required to prevent backflow of the medium. Additionally, filters are typically installed upstream of equipment to prevent impurities in the medium from damaging it. On-site installation often necessitates separate installation of check valves and filters, and subsequent maintenance also requires separate handling, making installation and maintenance quite complex.

[0003] The patent with authorization announcement number CN207131920U discloses a check filter that has a simple structure, is easy to use, and has both check and filtration functions, which avoids pipeline blockage and backflow of media while reducing installation and maintenance costs.

[0004] The existing technical solutions mentioned above have the following drawbacks: Although the above patents can filter impurities in the medium, there will be gaps between the filter chamber and the filter element, which can easily cause impurities to flow out through the gaps, thus affecting the filtration effect of the filter. In addition, when the medium flows and stops flowing, the ball valve core will collide with the check cylinder and check plate, causing the filter to vibrate. Over time, the pipe joints will loosen, resulting in water leakage from the filter. Therefore, a filter with a water leakage prevention function is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a filter with a leak-proof function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter with a leak-proof function, comprising...

[0007] A cylindrical body, with connecting seats provided at both ends of the cylindrical body;

[0008] A filter assembly is installed on the outside of the cylinder, and a limit component is provided on the connecting seat;

[0009] The filter assembly includes a fixed plate, a liquid guide tube, and a liquid outlet. The fixed plate is installed on the inner side of the cylinder body, the liquid guide tube is installed on the cylinder body and connected to the fixed plate, the liquid outlet is opened on the liquid guide tube and located on the inner side of the cylinder body, an inlet cylinder body is fixedly connected inside the liquid guide tube, a filter hole is opened on the outer side of the inlet cylinder body, and an external threaded seat is threaded to one end of the liquid guide tube, on which a filter element is installed.

[0010] Preferably, the filter element is sleeved on the outside of the liquid inlet cylinder, and one end of the filter element abuts against the bottom of the inner side of the liquid guide cylinder.

[0011] Preferably, the aforementioned limiting assembly includes two square guide cylinders, a telescopic spring, and a limiting post. The two square guide cylinders are fixedly connected to both ends of the cylinder body located outside the connecting seat. The telescopic spring is installed inside the square guide cylinder, and the limiting post is slidably connected inside the square guide cylinder.

[0012] Preferably, one end of the aforementioned telescopic spring is fixedly connected to one end of the cylinder, and the other end of the telescopic spring is fixedly connected to one end of the limiting post.

[0013] Preferably, a hexagonal connector is movably sleeved on the outer side of the aforementioned connector, and a threaded section is provided on one end of the inner side of the hexagonal connector.

[0014] Preferably, a flow guide seat is fixedly connected inside the aforementioned cylinder, and a sphere is disposed inside the flow guide seat.

[0015] Preferably, the outer side of the flow guide seat is provided with a liquid outlet hole, and the bottom of the flow guide seat is provided with a check hole.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0017] 1. This utility model allows liquid to enter the interior of the inlet cylinder and be filtered through filter holes, which can isolate large particles of impurities. Then, the liquid enters the top of the cylinder through the filter holes, filter element, and outlet. Since the filter element is sleeved on the outside of the inlet cylinder, it can prevent impurities from getting stuck inside the filter holes and avoid impurities from clogging the filter holes. At the same time, the design of the inlet cylinder can prevent impurities from flowing out between the filter element and the liquid guide cylinder, thereby improving the filtration effect of the filter.

[0018] 2. This utility model involves wrapping a wrench around the outside of the hexagonal connector. The wrench can press and move the limiting post. After the hexagonal connector and pipe joint are installed, the wrench is removed. At this time, the wrench is disengaged from one end of the limiting post. The limiting post is reset under the action of the telescopic spring, causing the limiting post to extend and move to the outer side of the hexagonal connector. This can limit the hexagonal connector, prevent the hexagonal connector from rotating under external force, and avoid water leakage from the filter. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the top structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the liquid guiding cylinder of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the connector of this utility model;

[0024] Figure 5 This is a schematic diagram of the square guide tube structure of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Cylinder body; 2. Fixing plate; 3. Liquid guide tube; 4. Liquid outlet; 5. Liquid inlet cylinder body; 6. Filter hole; 7. External thread seat; 8. Filter element; 9. Connecting seat; 10. Hexagonal connector; 11. Square guide tube; 12. Telescopic spring; 13. Limiting post; 14. Flow guide seat; 15. Liquid outlet hole; 16. Sphere. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0028] Example

[0029] Please see Figures 1-5This utility model provides a technical solution: a filter with a water-proof function, including a cylinder 1, with connecting seats 9 respectively provided at both ends of the cylinder 1; a filter assembly, which is installed on the outside of the cylinder 1, and a limiting component is provided on the connecting seat 9.

[0030] By setting up a filter assembly, the filtration effect of the filter can be improved. The filter assembly includes a fixed plate 2, a liquid guide cylinder 3, and a liquid outlet 4. The fixed plate 2 is installed inside the cylinder body 1. The liquid guide cylinder 3 is installed on the cylinder body 1 and connected to the fixed plate 2. The liquid outlet 4 is opened on the liquid guide cylinder 3 and located inside the cylinder body 1. An inlet cylinder 5 is fixedly connected inside the liquid guide cylinder 3. A filter hole 6 is opened on the outer side of the inlet cylinder 5. One end of the liquid guide cylinder 3 is threadedly connected to an external thread seat 7. A filter element 8 is installed on the external thread seat 7 and sleeved on the filter element 8. Outside the liquid inlet cylinder 5, one end of the filter element 8 abuts against the bottom of the inner side of the liquid guide cylinder 3. The liquid enters the interior of the liquid inlet cylinder 5 and is filtered through the filter holes 6, which can isolate large particles of impurities. Then the liquid enters the top of the cylinder 1 through the filter holes 6, the filter element 8 and the liquid outlet 4. Since the filter element 8 is sleeved on the outside of the liquid inlet cylinder 5, it can prevent impurities from getting stuck inside the filter holes 6 and avoid impurities from clogging the filter holes 6. At the same time, the liquid inlet cylinder 5 can prevent impurities from flowing out through the gap between the filter element 8 and the liquid guide cylinder 3.

[0031] By setting a limiting component, leakage due to loose connections during prolonged use of the filter can be prevented. The limiting component includes two square guide cylinders 11, a telescopic spring 12, and a limiting post 13. The two square guide cylinders 11 are fixedly connected to both ends of the cylinder body 1, located outside the connecting seat 9. The telescopic spring 12 is installed inside the square guide cylinder 11, and the limiting post 13 is slidably connected inside the square guide cylinder 11. One end of the telescopic spring 12 is fixedly connected to one end of the cylinder body 1, and the other end of the telescopic spring 12 is fixedly connected to one end of the limiting post 13. The connecting seat 9... A hexagonal connector 10 is movably sleeved on the outer side of the 9. One end of the hexagonal connector 10 has a threaded section. By wrapping a wrench around the outer side of the hexagonal connector 10, the wrench can press the limiting post 13 to move. After the hexagonal connector 10 is installed with the pipe joint, the wrench is removed. At this time, the wrench is disengaged from one end of the limiting post 13. The limiting post 13 is reset under the force of the telescopic spring 12, so that the limiting post 13 extends and moves to the outer side of the hexagonal connector 10, which can limit the hexagonal connector 10 and prevent the hexagonal connector 10 from rotating under external force.

[0032] A flow guide seat 14 is fixedly connected inside the cylinder 1. A ball 16 is installed inside the flow guide seat 14. A liquid outlet hole 15 is opened on the outer side of the flow guide seat 14. A check hole is opened at the bottom of the flow guide seat 14. Liquid is discharged into the cylinder 1 through the check hole, the liquid outlet hole 15 and the connecting seat 9 above. During this process, the ball 16 is dislodged from the top of the check hole. When the liquid stops flowing, the ball 16 presses against the top of the check hole under its own weight, which has the effect of preventing backflow.

[0033] Working principle or structural principle: When the filter is in use, liquid enters the interior of the cylinder 1 through the lower connecting seat 9, then enters the interior of the inlet cylinder 5, and is filtered through the filter holes 6, which can isolate large particles of impurities. The filtered liquid then enters the upper part of the cylinder 1 through the filter holes 6, the filter element 8, and the outlet 4. Since the filter element 8 is sleeved on the outside of the inlet cylinder 5, it can prevent impurities from getting stuck inside the filter holes 6, avoiding impurities from clogging the filter holes 6. At the same time, the design of the inlet cylinder 5 can prevent impurities from flowing out between the filter element 8 and the liquid guide cylinder 3, thereby improving the filtration effect of the filter. The liquid then exits the interior of the cylinder 1 through the check hole, the outlet hole 15, and the upper connecting seat 9. During this process, the ball 16 detaches from the top of the check hole. When the liquid stops flowing, the ball 16 presses against the top of the check hole under its own gravity, which plays a role in preventing backflow.

[0034] When installing the filter, a wrench is wrapped around the outside of the hexagonal connector 10, and then the wrench is pressed against one end of the limiting post 13. The limiting post 13 moves inside the square guide cylinder 11. At this time, the telescopic spring 12 is compressed. After the hexagonal connector 10 is installed with the pipe joint, the wrench is removed. The wrench is disengaged from one end of the limiting post 13, and the limiting post 13 is reset under the force of the telescopic spring 12, so that the limiting post 13 extends and moves to the outer side of the hexagonal connector 10, which can limit the hexagonal connector 10 and prevent the hexagonal connector 10 from rotating under external force, thus avoiding water leakage from the filter.

[0035] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A filter with a leak-proof function, characterized in that: include A cylindrical body (1), with connecting seats (9) provided at both ends of the cylindrical body (1); A filter assembly is installed on the outside of the cylinder (1), and a limit component is provided on the connecting seat (9); The filter assembly includes a fixed plate (2), a liquid guide tube (3), and a liquid outlet (4). The fixed plate (2) is installed on the inner side of the cylinder (1). The liquid guide tube (3) is installed on the cylinder (1) and connected to the fixed plate (2). The liquid outlet (4) is opened on the liquid guide tube (3) and located on the inner side of the cylinder (1). An inlet cylinder (5) is fixedly connected inside the liquid guide tube (3). A filter hole (6) is opened on the outer side of the inlet cylinder (5). One end of the liquid guide tube (3) is connected to an external thread seat (7) by a thread. A filter element (8) is installed on the external thread seat (7).

2. A filter with leak-proof function according to claim 1, characterized in that: The filter element (8) is sleeved on the outside of the liquid inlet cylinder (5), and one end of the filter element (8) abuts against the bottom of the inner side of the liquid guide cylinder (3).

3. A filter with leak-proof function according to claim 1, characterized in that: The limiting assembly includes two square guide cylinders (11), a telescopic spring (12), and a limiting post (13). The two square guide cylinders (11) are fixedly connected to both ends of the cylinder body (1) located outside the connecting seat (9). The telescopic spring (12) is installed inside the square guide cylinder (11), and the limiting post (13) is slidably connected inside the square guide cylinder (11).

4. A filter with leak-proof function according to claim 3, characterized in that: One end of the telescopic spring (12) is fixedly connected to one end of the cylinder (1), and the other end of the telescopic spring (12) is fixedly connected to one end of the limiting post (13).

5. A filter with leak-proof function according to claim 1, characterized in that: The outer side of the connecting seat (9) is movably sleeved with a hexagonal connector (10), and one end of the inner side of the hexagonal connector (10) is provided with a threaded section.

6. A filter with leak-proof function according to claim 1, characterized in that: A flow guide seat (14) is fixedly connected inside the cylinder (1), and a sphere (16) is provided inside the flow guide seat (14).

7. A filter with a leak-proof function according to claim 6, characterized in that: The outer side of the flow guide seat (14) is provided with a liquid outlet hole (15), and the bottom of the flow guide seat (14) is provided with a check hole.

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