Single water filter with good sealing performance

Abstract

The utility model discloses a single -unit water filter that good sealing performance, including seal cover, water filter, seal cover inside fixedly connected with upper echelon station, every layer of upper echelon station is provided with the communicating groove, the upper echelon station inside is provided with the installation groove with the communicating groove intercommunication, the communicating groove and installation groove inside slidingly connected with the sealing washer, sealing washer upper portion inboard slidingly connected with a plurality of sets of lift pole, lift pole both ends and installation groove inner wall fixedly connected, sealing washer one side with installation groove between fixedly connected with first spring, and first spring is set up in the lift pole outside, water filter upper portion fixedly connected with the lower echelon station of cooperation upper echelon station, the lower echelon station every layer is provided with the cooperation sealing washer sealing groove, is favorable to improve the sealing property of water filter.

Description

Technical Field

[0001] This utility model relates to the field of water filter technology, specifically a single-unit water filter with good sealing performance. Background Technology

[0002] A single-unit water filter is a water filter with a single filtration unit. It removes impurities, suspended solids, particulate matter, etc., from the water flow to purify the water.

[0003] Existing single-stage water filters mostly use a single sealing ring or flat sealing gasket in their sealing structure, which has the following defects: the sealing surface is a single-stage design, and if the sealing ring is worn or misaligned, it is easy to cause liquid leakage; there is no positioning device during installation, and the sealing element is easily squeezed and deformed due to misalignment, which affects the sealing effect. Therefore, there is an urgent need for a single-stage water filter with multi-stage sealing to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a single-stage water filter with good sealing performance to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-unit water filter with good sealing performance, comprising a sealing cover and a water filter. An upper stepped platform is fixedly connected inside the sealing cover. Each layer of the upper stepped platform has a connecting groove. An installation groove communicating with the connecting groove is opened inside the upper stepped platform. A sealing gasket is slidably connected inside the connecting groove and the installation groove. Several sets of lifting rods are slidably connected to the inner side of the upper part of the sealing gasket. Both ends of the lifting rods are fixedly connected to the inner wall of the installation groove. A first spring is fixedly connected between one side of the sealing gasket and the installation groove. The first spring is sleeved on the outside of the lifting rod. A lower stepped platform that matches the upper stepped platform is fixedly connected to the upper part of the water filter. Each layer of the lower stepped platform has a sealing groove that matches the sealing gasket.

[0006] Preferably, the lower part of the sealing cover is provided with several sets of positioning grooves, and a positioning block that matches the positioning grooves is fixedly connected to one side of the upper part of the water filter.

[0007] Preferably, an installation box is fixedly connected to the outer side of the sealing cover, and several sets of rotating shafts are rotatably connected to the lower side of the installation box. A threaded rod is fixedly connected to the lower part of the rotating shaft, and an installation plate is fixedly connected to the upper outer side of the water filter. Several sets of threaded holes that mate with the threaded rod are opened inside the installation plate.

[0008] Preferably, a transmission belt is sleeved between the rotating shafts, and two adjacent sets of transmission belts are staggered, with the transmission belts disposed inside the mounting box.

[0009] Preferably, a number of limiting plates are fixedly connected to the outer side of the rotating shaft, and the limiting plates are disposed between the transmission belts and on both sides of the lower wall of the mounting box.

[0010] Preferably, a follower block is fixedly connected to the upper part of the rotating shaft on one side through the outside of the mounting box, a lifting plate is slidably connected to the follower block and the outside of the rotating shaft, a toothed ring is fixedly connected to the lower part of the lifting plate, and a toothed groove for cooperating with the toothed ring is opened on the upper part of the mounting box.

[0011] Preferably, a second spring is fixedly connected between the lifting plate and the mounting box, and the second spring is sleeved on the outside of the rotating shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model forms multiple sealing redundancies by using a stepped platform in conjunction with multiple sets of sealing gaskets and sealing grooves. Even if a single-stage seal fails, the overall seal can still be maintained. The first spring always applies pressure to the sealing gasket to compensate for the gap caused by aging or temperature deformation of the sealing components, which is beneficial to improving the sealing performance of the water filter.

[0014] 2. This utility model also uses a transmission belt to drive multiple sets of threaded rods to rotate synchronously, ensuring that the sealing cover fits evenly with the water filter and avoiding excessive local stress. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0017] Figure 3 This is a three-dimensional structural cross-sectional view of the present invention;

[0018] Figure 4 This is an enlarged view of the structure at point A of this utility model.

[0019] In the diagram: 1. Sealing cap; 2. Upper stepped platform; 3. Connecting groove; 4. Mounting groove; 5. Sealing gasket; 6. Lifting rod; 7. First spring; 8. Positioning groove; 9. Mounting box; 10. Rotating shaft; 11. Threaded rod; 12. Transmission belt; 13. Limiting plate; 14. Follower block; 15. Lifting plate; 16. Gear ring; 17. Gear groove; 18. Second spring; 19. Water filter; 20. Lower stepped platform; 21. Sealing groove; 22. Positioning block; 23. Mounting plate; 24. Threaded 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. 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.

[0021] Please see Figure 1-4 This utility model provides a technical solution: including a sealing cover 1 and a water filter 19. An upper stepped platform 2 is fixedly welded inside the sealing cover 1. Each layer of the upper stepped platform 2 has a connecting groove 3. An installation groove 4 communicating with the connecting groove 3 is opened inside the upper stepped platform 2. A sealing gasket 5 is slidably connected inside the connecting groove 3 and the installation groove 4. The sealing gasket 5 is made of nitrile rubber to ensure water resistance and elasticity. Several sets of lifting rods 6 are slidably connected to the upper inner side of the sealing gasket 5. The two ends of the lifting rods 6 are fixedly welded to the inner wall of the installation groove 4. A first spring 7 is fixedly welded between one side of the sealing gasket 5 and the installation groove 4. Spring 7 is sleeved on the outside of lifting rod 6. A lower step platform 20 that matches the upper step platform 2 is fixedly welded to the upper part of water filter 19. Each layer of the lower step platform 20 has a sealing groove 21 for matching sealing gasket 5. During the connection between sealing cover 1 and water filter 19, the upper step platform 2 gradually presses against the lower step platform 20. Under the elastic force of the first spring 7, the sealing gasket 5 slides along the lifting rod 6 and is embedded in the sealing groove 21 to form a multi-level sealing surface. When the water pressure fluctuates, the first spring 7 compensates for the small displacement of the sealing gasket 5 through elastic deformation to ensure that it always fits tightly. The multi-level sealing design avoids overall leakage caused by the failure of a single stage.

[0022] The lower part of the sealing cover 1 has several sets of positioning grooves 8. The upper side of the water filter 19 is fixedly welded with a positioning block 22 that matches the positioning groove 8. The positioning block 22 is inserted into the positioning groove 8 to complete the initial positioning.

[0023] A mounting box 9 is fixedly welded to the outside of the sealing cover 1. Several sets of rotating shafts 10 are rotatably connected to the lower side of the mounting box 9. Threaded rods 11 are fixedly welded to the lower part of the rotating shafts 10. A mounting plate 23 is fixedly welded to the upper outer side of the water filter 19. Several sets of threaded holes 24 that mate with the threaded rods 11 are opened inside the mounting plate 23. When the sealing cover 1 is aligned with the upper part of the water filter 19, the threaded rods 11 rotate and are screwed into the threaded holes 24 of the mounting plate 23, thus connecting the sealing cover 1 and the water filter 19.

[0024] A transmission belt 12 is sleeved between the rotating shafts 10. Two adjacent sets of transmission belts 12 are staggered. The transmission belt 12 is set inside the mounting box 9 to ensure that when one side of the rotating shaft 10 is rotated, all rotating shafts 10 are rotated through the transmission belt 12, so that the sealing cover 1 is vertically downward, preventing excessive pressure on the threaded rod 11 on one side from causing a gap between the upper step platform 2 and the lower step platform 20.

[0025] Several sets of limiting plates 13 are fixedly welded to the outside of the rotating shaft 10. The limiting plates 13 are set between the transmission belts 12 and on both sides of the lower wall of the mounting box 9 to isolate the two adjacent sets of transmission belts 12 and prevent the rotating shaft 10 from falling off the lower inner side of the mounting box 9.

[0026] A follower block 14 is fixedly welded to the upper part of the rotating shaft 10 through the outer side of the mounting box 9. A lifting plate 15 is slidably connected to the outer side of the rotating shaft 10 and the follower block 14, ensuring that the lifting plate 15 drives the rotating shaft 10 to rotate. A toothed ring 16 is fixedly welded to the lower part of the lifting plate 15. A toothed groove 17 that matches the toothed ring 16 is opened on the upper part of the mounting box 9. Pulling the lifting plate 15 upward causes the toothed ring 16 to disengage from the toothed groove 17, unlocking the rotating shaft 10. When the lifting plate 15 is released, the toothed ring 16 engages with the toothed groove 17. The toothed ring 16 and the toothed groove 17 are set small enough to ensure that the toothed ring 16 can be inserted into the toothed groove 17 under slight rotation. The locking threaded rod 11 is locked to prevent loosening.

[0027] A second spring 18 is fixedly welded between the lifting plate 15 and the mounting box 9. The second spring 18 is sleeved on the outside of the rotating shaft 10. When the lifting plate 15 is lifted upward, the second spring 18 is compressed. When the lifting plate 15 is released, the second spring 18 returns to its original position, preventing the toothed ring 16 from disengaging from the toothed groove 17.

[0028] Working principle: When using this utility model, align the sealing cap 1 with the water filter 19, and insert the positioning block 22 into the positioning groove 8 to complete the initial positioning; at this time, the upper step platform 2 and the lower step platform 20 are precisely aligned; pull the lifting plate 15 upward to compress the second spring 18, so that the toothed ring 16 disengages from the tooth groove 17; rotate the follower block 14, and drive the transmission belt 12 through the rotating shaft 10, so that all the threaded rods 11 rotate synchronously and are screwed into the threaded hole 24 of the mounting plate 23; release the lifting plate 15, the second spring 18 returns to its original position, the toothed ring 16 engages with the tooth groove 17, and the threaded rods 11 are locked to prevent loosening.

[0029] Sealing principle: During the tightening process, the upper step 2 gradually presses against the lower step 20. Under the elastic force of the first spring 7, the sealing gasket 5 slides along the lifting rod 6 and is embedded in the sealing groove 21 to form a multi-stage sealing surface. When the water pressure fluctuates, the first spring 7 compensates for the small displacement of the sealing gasket 5 through elastic deformation to ensure that it always fits tightly. The multi-stage sealing design avoids overall leakage caused by the failure of a single stage.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-unit water filter with good sealing performance, comprising a sealing cover (1) and a water filter (19), characterized in that: The sealing cover (1) is fixedly connected to an upper step platform (2). Each layer of the upper step platform (2) has a connecting groove (3). The upper step platform (2) has an installation groove (4) that communicates with the connecting groove (3). The connecting groove (3) and the installation groove (4) are slidably connected to a sealing gasket (5). Several sets of lifting rods (6) are slidably connected to the upper inner side of the sealing gasket (5). The two ends of the lifting rods (6) are fixedly connected to the inner wall of the installation groove (4). A first spring (7) is fixedly connected between one side of the sealing gasket (5) and the installation groove (4). The first spring (7) is sleeved on the outside of the lifting rod (6). The upper part of the water filter (19) is fixedly connected to a lower step platform (20) that matches the upper step platform (2). Each layer of the lower step platform (20) has a sealing groove (21) that matches the sealing gasket (5).

2. A single-stage water filter with good sealing performance according to claim 1, characterized in that: The sealing cover (1) has several sets of positioning grooves (8) at the bottom, and the water filter (19) has a positioning block (22) that matches the positioning grooves (8) fixedly connected to one side of the upper part.

3. A single-stage water filter with good sealing performance according to claim 1, characterized in that: The sealing cover (1) is fixedly connected to the outside of the mounting box (9), and the mounting box (9) is rotatably connected to the lower side of the mounting box (9). The lower part of the rotating shaft (10) is fixedly connected to the threaded rod (11), and the upper outer part of the water filter (19) is fixedly connected to the mounting plate (23). The mounting plate (23) has several sets of threaded holes (24) that cooperate with the threaded rod (11) inside.

4. A single-stage water filter with good sealing performance according to claim 3, characterized in that: A transmission belt (12) is sleeved between the rotating shafts (10), and two adjacent sets of transmission belts (12) are staggered. The transmission belts (12) are located inside the mounting box (9).

5. A single-stage water filter with good sealing performance according to claim 4, characterized in that: Several sets of limiting plates (13) are fixedly connected to the outside of the rotating shaft (10). The limiting plates (13) are arranged between the transmission belt (12) and on both sides of the lower wall of the mounting box (9).

6. A single-stage water filter with good sealing performance according to claim 3, characterized in that: A follower block (14) is fixedly connected to the upper part of the rotating shaft (10) through the outside of the mounting box (9). A lifting plate (15) is slidably connected to the outside of the follower block (14) and the rotating shaft (10). A toothed ring (16) is fixedly connected to the lower part of the lifting plate (15). A toothed groove (17) that matches the toothed ring (16) is opened on the upper part of the mounting box (9).

7. A single-stage water filter with good sealing performance according to claim 6, characterized in that: A second spring (18) is fixedly connected between the lifting plate (15) and the mounting box (9), and the second spring (18) is sleeved on the outside of the rotating shaft (10).

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