Filter with filter element convenient to replace

Abstract

The utility model relates to a filter with a filter element convenient to replace. The utility model has the advantage that the filter element is convenient to replace, and comprises a pipe body, the middle part of the pipe body is communicated with a barrel body, the filter element is inserted into the barrel body, two arc-shaped slideways are arranged on the outer side wall of the upper part of the barrel body, and roller bodies are arranged in the two arc-shaped slideways in a sliding manner; the two roller bodies are rotationally connected to the lower portions of the two connecting rods correspondingly, the upper portions of the two connecting rods are rotationally connected with a barrel cover, the barrel cover is buckled to the upper end of the barrel body, and locking assemblies used for fixing the roller bodies are arranged on the lower portions of the two arc-shaped sliding ways correspondingly. The lower portions of the two connecting rods are each provided with an unlocking assembly used for releasing fixation of the locking assembly.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, specifically relating to a filter that facilitates filter element replacement. Background Technology

[0002] A filter is an indispensable device in pipelines transporting media. It is usually installed at the inlet end of other equipment such as pressure reducing valves, pressure relief valves, and level control valves. A filter mainly consists of a cylinder and a filter element. When the filter is working, the water to be filtered enters the filter through the inlet, flows through the filter element, and flows out through the outlet. Particulate impurities in the water are retained inside the filter element, thus completing the water filtration process.

[0003] After a period of use, a large number of impurity particles will adhere to the filter element in the existing filter, which is not conducive to the flow of liquid. Therefore, the filter element needs to be replaced. When replacing the filter element, it is usually necessary to remove the bolts on the filter cartridge cover one by one, then remove the cover and take out the filter element for replacement. The existing filter makes filter element replacement troublesome due to the large number of bolts. Therefore, a filter that makes filter element replacement convenient is designed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a filter with an easy-to-replace filter element.

[0005] The technical solution of this utility model is as follows:

[0006] A filter with easy filter element replacement includes a tube body, a cylinder body connected to the middle of the tube body, a filter element inserted inside the cylinder body, two arc-shaped slides on the upper outer wall of the cylinder body, roller bodies slidably disposed in each of the two arc-shaped slides, the two roller bodies being rotatably connected to the lower parts of the two connecting rods respectively, a cylinder cover being rotatably connected to the upper parts of the two connecting rods, the cylinder cover being fastened to the upper end of the cylinder body, a locking component for fixing the roller bodies being provided at the lower part of each of the two arc-shaped slides, and an unlocking component for releasing the locking component from the lower part of each of the two connecting rods.

[0007] Furthermore, the locking assembly includes an insertion hole opened in the lower part of the arc-shaped slide, a first spring is provided in the insertion hole, and an insertion block is slidably connected in the insertion hole. One end of the first spring is fixed to the inner wall of the insertion hole, and the other end of the first spring is fixed to the side of the insertion block near the filter element. The insertion block can be inserted into the roller body.

[0008] Furthermore, the unlocking assembly includes an unlocking rod inserted into the lower part of the connecting rod. The unlocking rod passes through the connecting rod and can be inserted into the roller body to contact the insert block. The end of the unlocking rod away from the insert block is fixed to the top plate. A corrugated tube is fixed to the end face of the top plate near the insert block. The other end of the corrugated tube is fixed to the side wall of the connecting rod. A second spring is provided inside the corrugated tube. One end of the second spring is fixed to the side wall of the top plate near the unlocking rod, and the other end of the second spring is fixed to the side wall of the connecting rod near the corrugated tube.

[0009] Furthermore, a limit ring is fixed to the end of the unlocking rod away from the connecting rod, and the limit ring is located inside the bellows.

[0010] Furthermore, the diameter of the limiting ring is larger than the diameter of the connecting rod, and the diameter of the unlocking rod is smaller than the diameter of the insert block.

[0011] Furthermore, a sealing groove is provided at the upper end of the cylinder, and a sealing gasket is provided on the lower side of the cylinder cover. The cylinder cover can be sealed with the cylinder through the sealing gasket and the sealing groove.

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

[0013] This invention utilizes an arc-shaped slide, roller, connecting rod, and locking assembly to quickly fix the cylinder cover and connect the cylinder cover to the cylinder body. The locking and unlocking assemblies work together to quickly replace the filter element, making filter element replacement convenient and efficient.

[0014] In summary, this invention has the advantage of facilitating filter replacement. Attached Figure Description

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

[0016] Figure 2 This is a cross-sectional schematic diagram of the main view of the three-dimensional structure of this utility model;

[0017] Figure 3 This is an enlarged schematic diagram showing the positions of the locking and unlocking components of this utility model;

[0018] Figure 4 This is a utility model Figure 3 Enlarged diagram of point A in the middle.

[0019] In the diagram, 1. Pipe body; 2. Cylinder body; 3. Filter element; 4. Arc-shaped slide; 5. Roller body; 6. Connecting rod; 7. Cylinder cover; 8. Insertion hole; 9. First spring; 10. Insert block; 11. Unlocking rod; 12. Top plate; 13. Bellows; 14. Second spring; 15. Limiting ring; 16. Sealing groove; 17. Sealing gasket. 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] like Figures 1 to 4 As shown, a filter that facilitates filter element replacement includes a tube body 1, a cylinder body 2 connected to the middle of the tube body 1, a filter element 3 inserted inside the cylinder body 2, two arc-shaped slides 4 opened on the upper outer side wall of the cylinder body 2, roller bodies 5 slidably arranged in each of the two arc-shaped slides 4, the two roller bodies 5 being rotatably connected to the lower part of two connecting rods 6 respectively, a cylinder cover 7 being rotatably connected to the upper part of the two connecting rods 6, the cylinder cover 7 being fastened to the upper end of the cylinder body 2, a locking component for fixing the roller bodies 5 being provided at the lower part of each of the two arc-shaped slides 4, and an unlocking component for unlocking the locking component being fixed at the lower part of each of the two connecting rods 6;

[0022] When filter element 3 needs to be replaced, press the unlocking component to release the locking component from limiting the roller body 5. At this time, the roller body 5 can move. Press the unlocking component to rotate the two connecting rods 6. The two connecting rods 6 drive the cover 7 to rotate around the central axis of the cylinder 2. When the locking component is no longer in contact with the unlocking component, directly rotate the cover 7 to drive the connecting rods 6 to rotate and move away from the cylinder 2. When the connecting rods 6 move to the uppermost end of the arc-shaped slide 4, they can drive the cover 7 to rotate around the connecting shaft at the connection point with the connecting rods 6, so that the cover 7 is no longer directly above the cylinder 2. At this time, filter element 3 can be taken out for replacement. After replacing filter element 3, rotate the cover 7 to be directly above the cylinder 2. Then rotate the cover 7 towards the cylinder 2. When the connecting rods 6 drive the roller body 5 to the lowermost part of the arc-shaped slide 4, the locking component will automatically lock the roller body 5. At this time, the replacement of filter element 3 and the locking of cover 7 are completed.

[0023] In this embodiment, the locking assembly includes an insertion hole 8 opened in the lower part of the arc-shaped slide 4, a first spring 9 is provided in the insertion hole 8, and an insertion block 10 is slidably connected in the insertion hole 8. One end of the first spring 9 is fixed to the inner wall of the insertion hole 8, and the other end of the first spring 9 is fixed to the side of the insertion block 10 near the filter element 3. The insertion block 10 can be inserted into the roller body 5.

[0024] The side of the insert block 10 closest to the roller body 5 is inclined. As the roller body 5 approaches the insert block 10 and moves to the front of the insert block 10, the roller body 5 will squeeze the inclined side of the insert block 10, causing the insert block 10 to squeeze the first spring 9 and gradually enter the insertion hole 8.

[0025] When the roller 5 moves to the bottom of the arc-shaped slide 4, the roller 5 and the insert block 10 are concentric. At this time, the insert block 10 is pushed by the first spring 9, so that the insert block 10 is inserted into the hole opened on the roller 5 to position the roller 5. At this time, the cylinder cover 7 and the cylinder 2 are sealed together.

[0026] Preferably, the unlocking assembly includes an unlocking rod 11 inserted into the lower part of the connecting rod 6. The unlocking rod 11 passes through the connecting rod 6 and can be inserted into the roller body 5 to contact the insert block 10. One end of the unlocking rod 11 away from the insert block 10 is fixed to the top plate 12. A bellows 13 is fixed to the end face of the top plate 12 near the insert block 10. The other end of the bellows 13 is fixed to the side wall of the connecting rod 6. A second spring 14 is provided inside the bellows 13. One end of the second spring 14 is fixed to the side wall of the top plate 12 near the unlocking rod 11, and the other end of the second spring 14 is fixed to the side wall of the connecting rod 6 near the bellows 13.

[0027] When it is necessary to release the locking assembly from the roller body 5, first press down the two top plates 12, so that the top plates 12 drive the unlocking rod 11 to squeeze the insert block 10. At this time, the bellows 13 folds, the top plates 12 squeeze the second spring 14, and the unlocking rod 11 pushes against the insert block 10, so that after the insert block 10 is separated from the roller body 5, the roller body 5 can move. At this time, while pressing the top plates 12, the connecting rod 6 is rotated so that the roller body 5 is not concentric with the insert block 10, thus releasing the locking assembly. When the top plates 12 are released, the second spring 14 pushes the top plates 12 and the bellows 13 to reset, and the unlocking rod 11 resets.

[0028] In this embodiment, a limit ring 15 is fixed at the end of the unlocking rod 11 away from the connecting rod 6, and the limit ring 15 is located inside the bellows 13;

[0029] The limiting ring 15 can limit the maximum length of the unlocking rod 11 inserted into the roller body 5, so that when the unlocking rod 11 is inserted into the roller body 5 to its maximum length, the side of the unlocking rod 11 near the insertion block 10 is flush with the side of the roller body 5 near the insertion block 10.

[0030] In this embodiment, the diameter of the limiting ring 15 is greater than the diameter of the connecting rod 6, and the diameter of the unlocking rod 11 is less than the diameter of the insert block 10.

[0031] This prevents the limiting ring 15 from entering the connecting rod 6, allowing the unlocking rod 11 to be inserted into the roller body 5.

[0032] In this embodiment, a sealing groove 16 is provided at the upper end of the cylinder 2, and a sealing gasket 17 is provided on the lower side of the cylinder cover 7. The cylinder cover 7 can be sealed with the cylinder 2 through the sealing gasket 17 and the sealing groove 16.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filter with an easily replaceable filter element, characterized in that: The device includes a tube body, a cylinder body connected to the middle of the tube body, a filter element inserted inside the cylinder body, two arc-shaped slides on the upper outer wall of the cylinder body, rollers slidably disposed in each of the two arc-shaped slides, the two rollers being rotatably connected to the lower part of the two connecting rods respectively, a cylinder cover being rotatably connected to the upper part of the two connecting rods, the cylinder cover being fastened to the upper end of the cylinder body, a locking component for fixing the rollers being provided at the lower part of each of the two arc-shaped slides, and an unlocking component for releasing the locking component from fixing the rollers being provided at the lower part of each of the two connecting rods.

2. The filter with convenient filter element replacement according to claim 1, characterized in that: The locking assembly includes an insertion hole in the lower part of the arc-shaped slide, a first spring is provided in the insertion hole, and an insertion block is slidably connected in the insertion hole. One end of the first spring is fixed to the inner wall of the insertion hole, and the other end of the first spring is fixed to the side of the insertion block near the filter element. The insertion block can be inserted into the roller body.

3. The filter with convenient filter element replacement according to claim 1, characterized in that: The unlocking assembly includes an unlocking rod inserted into the lower part of the connecting rod. The unlocking rod passes through the connecting rod and can be inserted into the roller body to contact the insert block. The end of the unlocking rod away from the insert block is fixed to the top plate. A corrugated tube is fixed to the end face of the top plate near the insert block. The other end of the corrugated tube is fixed to the side wall of the connecting rod. A second spring is provided inside the corrugated tube. One end of the second spring is fixed to the side wall of the top plate near the unlocking rod, and the other end of the second spring is fixed to the side wall of the connecting rod near the corrugated tube.

4. A filter with a convenient filter element replacement according to claim 3, characterized in that: A limit ring is fixed to the end of the unlocking rod away from the connecting rod, and the limit ring is located inside the bellows.

5. A filter with a convenient filter element replacement according to claim 4, characterized in that: The diameter of the limiting ring is larger than the diameter of the connecting rod, and the diameter of the unlocking rod is smaller than the diameter of the insert block.

6. A filter with a convenient filter element replacement according to claim 1, characterized in that: The upper end of the cylinder is provided with a sealing groove, and the lower side of the cylinder cover is provided with a sealing gasket. The cylinder cover can be sealed with the cylinder through the sealing gasket and the sealing groove.

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