Filter with filter element convenient to replace

Abstract

The utility model provides a filter convenient to replace filter core, relates to filter technical field, including filter main part and top cover, filter main part bottom outer wall periphery is fixed with support leg, the top of top cover is fixed with the liquid inlet pipe, filter main part bottom is fixed with the diversion block, and the diversion block is fixed with the filter core. And a liquid outlet is fixed at the bottom of the flow guide block. According to the device, a top cover is placed at the top of the filter main body, a convex block is clamped into a groove to limit the top cover, so that the top cover is located in the center of the filter main body, a connecting ring is rotated outside a threaded ring to drive the horizontal height of a first extrusion ring to change, and the bottom ends of a plurality of moving blocks expand outwards when the first extrusion ring moves upwards; through transmission of a connecting rod, an extrusion block moves downwards to extrude a second supporting ring, and the connecting ring is reversely rotated during disassembly, so that the effects that the top cover and the filter main body can be quickly separated, and meanwhile, the connection is relatively tight are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and more specifically, particularly relates to a filter which is convenient for replacing a filter element. Background Art

[0002] The filter element of the waste liquid filter needs to be replaced after long-term use. When installing the filter element of the existing waste liquid filter, bolts are usually used for fastening. When disassembling, the bolts need to be unscrewed for installation. Since the bolts themselves are easy to fall off when screwing, and tools are required to do so, the difficulty of replacing the filter element is increased.

[0003] The existing publication number CN220633231U discloses a waste liquid filter that is easy to replace the filter element. Although a wall ring is fixedly provided on the inner wall of the filter body, the top of the wall ring is in contact with the bottom of the flange, and a fixing device is used to lock the filter element. When installing the filter element inside the waste liquid filter, a stable state can be achieved without the help of bolts, and no tools are required. The filter element can be quickly disassembled by manual pulling, which makes it more convenient to use.

[0004] Based on the above, the inventors have discovered the following problems: However, when the top cover and the filter body of the device are disassembled, multiple bolts still need to be removed one by one. After removal and replacement of the filter element, multiple bolts need to be tightened one by one. When replacing the filter element, the top cover has to be removed, which makes replacement of the filter element still not very convenient.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a filter that is easy to replace the filter element is provided, in order to achieve a more practical purpose. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a filter that is easy to replace the filter element, so as to solve the problem that the top cover and the filter body still need to be removed separately and in sequence when they are disassembled.

[0007] The utility model provides a filter that is easy to replace the filter element, which is achieved by the following specific technical means:

[0008] 14. The filter of claim 13, wherein the filter element is an air filter element and a plurality of filter elements are provided on the filter element housing. The filter element is a plurality of filter elements, each of which is a plurality of filter elements having a plurality of filter elements. The plurality of filter elements are plurality of filter elements, and a plurality of filter elements are provided on the filter element housing.

[0009] Furthermore, the supporting block, the moving block, the connecting rod and the extruding block are provided in plurality, and the supporting blocks, the moving block, the connecting rod and the extruding blocks are arranged equidistantly in a circle.

[0010] Furthermore, a first support ring is fixed to the top of the outer wall of the filter body, a groove is provided in the middle of the top of the first support ring, and a first sealing ring is fixed to the inner side of the top of the first support ring.

[0011] Furthermore, a second support ring is fixed to the outer wall of the top cover, a protrusion is fixed to the bottom of the second support ring, and the protrusion is used in conjunction with the groove.

[0012] Furthermore, a sleeve rod is fixed at the bottom of the liquid inlet pipe, a telescopic rod is movably sleeved at the bottom of the sleeve rod, springs are provided on the outer walls of the sleeve rod and the telescopic rod, a second extrusion ring is fixed at the bottom end of the telescopic rod, a second sealing ring is fixed to the outer side wall of the bottom of the second extrusion ring, and the outer wall diameter value of the second extrusion ring is adapted to the inner wall diameter value of the filter body.

[0013] Furthermore, the guide block is arranged in a hollow truncated cone shape, and the diameter value of the top of the guide block is matched with the diameter value of the bottom of the inner wall of the filter body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. In the utility model, the top cover is placed on the top of the filter body, and the protrusion is inserted into the groove to limit the top cover, so that the top cover is located in the center of the filter body. The connecting ring is rotated outside the threaded ring to drive the horizontal height of the first extrusion ring to change. The more the first extrusion ring moves upward, the more the bottom ends of the multiple moving blocks expand outward. The extrusion blocks are driven downward by the connecting rod to squeeze the second support ring. When disassembling, the connecting ring can be rotated in the opposite direction, so that the top cover can be quickly separated from the filter body, and the connection is also relatively tight.

[0016] 2. In the utility model, the protrusion is inserted into the groove so that the first sealing ring can be squeezed to the maximum extent. The first sealing ring will be squeezed to fill the gap between the top cover and the filter body. The spring releases the elastic potential energy to make the second extrusion ring squeeze the top ring of the filter element. The second sealing ring fills the gap between the top ring of the filter element and the filter body. There will be some errors in the production of the filter element. The second sealing ring is used to fill the error gap, thereby reducing the possibility of waste liquid leakage and improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the overall structure of the utility model.

[0018] Figure 2 yes Figure 1 A-section structure enlarged schematic diagram.

[0019] Figure 3 It is a bottom view schematic diagram of the structure of the top cover of the utility model.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting ring and the threaded ring of the utility model.

[0021] Figure 5 It is a schematic diagram of the internal structure of the filter body of the utility model.

[0022] The corresponding relationship between the component names and the figure numbers in the figure is:

[0023] 1. Filter body; 2. Support legs; 3. Guide block; 4. Liquid outlet; 5. Threaded ring; 6. Connecting ring; 7. First extrusion ring; 8. First supporting ring; 9. Groove; 10. First sealing ring; 11. Support block; 12. Moving block; 13. Connecting rod; 14. Extrusion block; 15. Top cover; 16. Liquid inlet pipe; 17. Second supporting ring; 18. Bump; 19. Sleeve rod; 20. Telescopic rod; 21. Spring; 22. Second extrusion ring; 23. Second sealing ring; 24. Filter element body; 25. Filter element top ring. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, “plurality” means two or more; in addition, the terms “first”, “second”, “third”, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] Example:

[0027] As attached Figure 1 To Attachment Figure 5 As shown:

[0028] The utility model provides a filter that is easy to replace the filter element, including a filter body 1 and a top cover 15, the bottom outer wall of the filter body 1 is fixed with support legs 2, the top of the top cover 15 is penetrated and fixed with a liquid inlet pipe 16, a filter element body 24 is placed inside the filter body 1, a guide block 3 is fixed at the bottom of the filter body 1, a liquid outlet 4 is fixed at the bottom of the guide block 3, a threaded ring 5 is fixed at the middle of the outer wall of the filter body 1, a connecting ring 6 is threadedly connected to the outer wall of the threaded ring 5, a first extrusion ring 7 is fixed on the top of the connecting ring 6, a moving block 12 and a connecting rod 13 are arranged in an inclined shape, and the bottom of the extrusion block 14 is inclined. The arc shape is set, the moving block 12 and the first extrusion ring 7 are fitted with each other, the thickness value of the top of the first extrusion ring 7 is less than the thickness value of the bottom of the first extrusion ring 7, a support block 11 is fixed below the top of the outer wall of the filter body 1, and a connecting rod 13 is rotatably connected to the middle of the support block 11. The moving block 12 is fixed to the bottom end of the connecting rod 13, and the extrusion block 14 is fixed to the top of the connecting rod 13. A filter element top ring 25 is fixed to the outer wall of the top of the filter element body 24, and the filter element top ring 25 touches the second sealing ring 23 to prevent the waste liquid entering the filter body 1 from flowing away from the gap between the filter element top ring 23 and the filter body 1.

[0029] Among them, there are multiple support blocks 11, moving blocks 12, connecting rods 13 and extrusion blocks 14, and the multiple support blocks 11, moving blocks 12, connecting rods 13 and extrusion blocks 14 are arranged equidistantly around the circumference, and the second support ring 17 outside the top cover 15 is squeezed and limited by the multiple extrusion blocks 14 at the same time.

[0030] Among them, the thickness value of the top of the first extrusion ring 7 is smaller than the thickness value of the bottom of the first extrusion ring 7. By rotating the connecting ring 6 outside the threaded ring 5, the horizontal height of the first extrusion ring 7 is changed. The more the first extrusion ring 7 moves upward, the more the bottom ends of the multiple moving blocks 12 expand outward. The extrusion block 14 is driven downward by the connecting rod 13 to extrude the second support ring 17.

[0031] Among them, a first support ring 8 is fixed to the top of the outer wall of the filter body 1, a groove 9 is opened in the middle of the top of the first support ring 8, a first sealing ring 10 is fixed on the inner side of the top of the first support ring 8, the first support ring 8 is connected to the second support ring 17, and the first sealing ring 10 will be squeezed to fill the gap between the top cover 15 and the filter body 1.

[0032] Among them, a second support ring 17 is fixed to the outer wall of the top cover 15, and a protrusion 18 is fixed to the bottom of the second support ring 17. The protrusion 18 is used in conjunction with the groove 9. When the top cover 15 and the filter body 1 are connected, the protrusion 18 is inserted into the groove 9, so that the first sealing ring 10 can be squeezed to the maximum extent.

[0033] Among them, a sleeve rod 19 is fixed at the bottom of the liquid inlet pipe 16, and a telescopic rod 20 is movably sleeved at the bottom of the sleeve rod 19. A spring 21 is arranged on the outer walls of the sleeve rod 19 and the telescopic rod 20. A second extrusion ring 22 is fixed at the bottom end of the telescopic rod 20. A second sealing ring 23 is fixed on the outer side wall of the bottom of the second extrusion ring 22. The outer wall diameter value of the second extrusion ring 22 is adapted to the inner wall diameter value of the filter body 1. When in use, a filter element 24 of the corresponding diameter value is first placed in the middle of the filter body 1, and the filter element 24 is extruded by the second extrusion ring 22. The spring 21 releases the elastic potential energy so that the second extrusion ring 22 extrudes the filter element 24, and the second sealing ring 23 fills the gap between the filter element top ring 25 and the filter body 1. There will be some errors in the production of the filter element 24 and the filter element top ring 25. The second sealing ring 23 is used to fill the error gap to prevent the internal waste liquid from flowing out directly from the guide block 3 without filtering the core body 24.

[0034] Among them, the guide block 3 is set in a hollow truncated cone shape, and the diameter value of the top of the guide block 3 is adapted to the diameter value of the bottom of the inner wall of the filter body 1. The truncated cone-shaped guide block 3 can better discharge the filtered waste liquid from the filter body 1.

[0035] The specific usage and function of this embodiment are as follows:

[0036] In the utility model, the filter element is first placed inside the filter body 1, and the top cover 15 is placed on the top of the filter body 1, and the protrusion 18 is inserted into the groove 9 to limit the top cover 15, so that the top cover 15 is located in the center of the filter body 1, and the connecting ring 6 is rotated outside the threaded ring 5 to drive the horizontal height of the first extrusion ring 7 to change. The more the first extrusion ring 7 moves upward, the more the bottom ends of the multiple moving blocks 12 expand outward. The extrusion block 14 is driven downward by the connecting rod 13 to squeeze the second support ring 17, and the protrusion 18 is inserted into the groove 9, so that The first sealing ring 10 can be squeezed to the maximum extent, and the first sealing ring 10 will be squeezed to fill the gap between the top cover 15 and the filter body 1. When the filter element 24 is squeezed by the second squeezing ring 22, the spring 21 releases the elastic potential energy so that the second squeezing ring 22 squeezes the filter element 24, and the second sealing ring 23 fills the gap between the filter element 24 and the filter body 1. There will be some errors in the production of the filter element 24. The second sealing ring 23 is used to fill the error gap to prevent the internal waste liquid from flowing out directly from the guide block 3 without filtering the filter element 24.

[0037] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A filter for facilitating replacement of a filter element, comprising a filter body (1) and a top cover (15), wherein the bottom outer wall of the filter body (1) is fixed with support legs (2) all around, the top of the top cover (15) is penetrated and fixed with a liquid inlet pipe (16), and a filter element (24) is placed inside the filter body (1), characterized in that: A guide block (3) is fixed at the bottom of the filter body (1), a liquid outlet (4) is fixed at the bottom of the guide block (3), a threaded ring (5) is fixed at the middle of the outer wall of the filter body (1), a connecting ring (6) is threadedly connected to the outer wall of the threaded ring (5), a first extrusion ring (7) is fixed at the top of the connecting ring (6), the thickness of the top of the first extrusion ring (7) is smaller than the thickness of the bottom of the first extrusion ring (7), a support block (11) is fixed below the top of the outer wall of the filter body (1), a connecting rod (13) is rotatably connected to the middle of the support block (11), a moving block (12) is fixed at the bottom end of the connecting rod (13), an extrusion block (14) is fixed at the top end of the connecting rod (13), a filter element top ring (25) is fixed at the top outer wall of the filter element body (24), the moving block (12) and the connecting rod (13) are arranged in an inclined shape, the bottom of the extrusion block (14) is arranged in an arc shape, and the moving block (12) and the first extrusion ring (7) are fitted together.

2. A filter for easily replacing a filter element as claimed in claim 1, characterized in that: A plurality of the support blocks (11), the moving blocks (12), the connecting rods (13) and the extrusion blocks (14) are provided, and the plurality of the support blocks (11), the moving blocks (12), the connecting rods (13) and the extrusion blocks (14) are arranged equidistantly in a circle.

3. A filter for easily replacing a filter element as claimed in claim 1, characterized in that: A first support ring (8) is fixed to the top of the outer wall of the filter body (1), a groove (9) is provided in the middle of the top of the first support ring (8), and a first sealing ring (10) is fixed to the inner side of the top of the first support ring (8).

4. A filter for easy replacement of filter element as claimed in claim 3, characterized in that: A second support ring (17) is fixed to the outer wall of the top cover (15), and a convex block (18) is fixed to the bottom of the second support ring (17), wherein the convex block (18) is used in conjunction with the groove (9).

5. A filter for easily replacing a filter element as claimed in claim 1, characterized in that: A sleeve rod (19) is fixed at the bottom of the liquid inlet pipe (16), a telescopic rod (20) is movably sleeved at the bottom of the sleeve rod (19), springs (21) are provided on the outer walls of the sleeve rod (19) and the telescopic rod (20), a second extrusion ring (22) is fixed at the bottom end of the telescopic rod (20), a second sealing ring (23) is fixed to the outer side wall of the bottom of the second extrusion ring (22), and the outer wall diameter of the second extrusion ring (22) is matched to the inner wall diameter of the filter body (1).

6. A filter for easily replacing a filter element as claimed in claim 1, characterized in that: The guide block (3) is arranged in a hollow truncated cone shape, and the diameter value of the top of the guide block (3) is matched with the diameter value of the bottom of the inner wall of the filter body (1).

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