Filter device capable of being quickly disassembled and assembled

Abstract

The utility model relates to a filtering device capable of being quickly assembled and disassembled, which comprises a base, a retainer ring, a filter cartridge and a filter element, the filter cartridge and the base are mutually and fixedly connected relatively through ball limiting, the retainer ring is arranged on the outer side of the ball, and an upper limiting piece and a lower limiting piece are arranged on the upper portion and the lower portion of the retainer ring. The clamping ring and the balls are arranged between the filter cylinder and the base, and the elastic clamping ring and the elastic piece are combined, so that the filter cylinder and the base can be quickly and detachably connected, the filter cylinder can be conveniently taken down from the base and then replaced with a filter cylinder with a new length, the disassembly and assembly operation is simple and easy to implement, the application range is wide, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a filter device that can be quickly disassembled and assembled. Background Art

[0002] The filter device is used for filtration, including a base, a filter cartridge and a filter element. The filter cartridge is fixedly connected to the base, the filter element is located inside the filter cartridge, and the fluid passes through the filter element to achieve the filtration effect. The defect of the existing filter device is that the fixed connection between the filter cartridge and the base usually requires a destructive method to disassemble the base and the filter cartridge (after the filter cartridge is removed, the filter element is relatively easy to remove), or the disassembly and assembly operation is extremely complicated, wasting manpower. The filter device is set with different lengths according to different use environmental conditions. Therefore, it is difficult to achieve the method of applying to multiple scenarios by replacing the filter cartridge, which needs to be overcome. Summary of the Utility Model

[0003] In view of the deficiencies in the background art, the utility model provides a filter device that can be quickly disassembled and assembled, and overcomes the above defects.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a filter device that can be quickly disassembled and assembled, including a base, a snap ring, a filter cartridge and a filter element. The filter cartridge and the base are relatively fixedly connected to each other through the limit of ball bearings. A snap ring is arranged outside the ball bearings, and an upper limit member and a lower limit member are arranged above and below the snap ring.

[0005] The base is provided with a connection end, the open end of the filter cartridge is inserted into the connection end of the base. Through holes are arranged on the connection end, and ball bearings are arranged in the through holes. Grooves are arranged at the positions corresponding to the through holes on the filter cartridge, and the ball bearings are placed in the grooves under the extrusion of the snap ring.

[0006] The upper limit member is an elastic member, and the lower limit member is an elastic snap ring.

[0007] A first step is arranged outside the connection end. The inner wall of the snap ring is successively provided with a second step, a limit surface and an inclined surface from top to bottom. The elastic member is sleeved outside the connection end, and both ends of the elastic member are respectively abutted against the first step and the second step.

[0008] An annular groove is arranged outside the connection end, the elastic snap ring is placed in the annular groove, and the cross section of the elastic snap ring extends out of the annular groove.

[0009] An inlet and an outlet are arranged on the base.

[0010] A corrugated spring is further arranged between the filter cartridge and the base.

[0011] Due to the adoption of the above technical solution, the problem of quick disassembly and assembly between the filter cartridge and the base of the existing filter device is effectively improved. By setting a snap ring and ball bearings between the filter cartridge and the base, combined with an elastic snap ring and an elastic member, a quick-detachable connection between the filter cartridge and the base is realized, which is convenient for removing the filter cartridge from the base and then replacing the filter cartridge with a new length. The disassembly and assembly operations are simple and easy to perform, with a wide range of applications and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the present invention.

[0013] Figure 2 is Figure 1 the sectional view taken along line A-A in

[0014] Figure 3 is Figure 2 the enlarged partial structural schematic diagram in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Referring to Figures 1 - 3 it can be seen that the present invention discloses a filter device capable of quick disassembly and assembly, including a base 1, a snap ring 4, a filter cartridge 2 and a filter element 3. The base 1 is provided with an inlet 11 and an outlet 12. The filter cartridge 2 and the base 1 are relatively fixedly connected to each other through the limitation of ball bearings 5. A snap ring 4 is arranged outside the ball bearings 5, and an upper limiting member 6 and a lower limiting member 7 are arranged above and below the snap ring 4. As shown in the attached Figure 2 figure, the upper limiting member 6 is an elastic member 61, and the lower limiting member 7 is an elastic snap ring 71.

[0016] The base 1 is provided with a connecting end 13. The open end of the filter cartridge 2 is inserted into the connecting end 13 of the base. A through hole 131 is provided in the connecting end 13, and a ball bearing 5 is arranged in the through hole 131. A groove 21 is provided at the position of the filter cartridge 2 corresponding to the through hole 131, and the ball bearing 5 is placed in the groove 21 under the extrusion of the snap ring 4. Preferably, the groove 21 is annularly arranged, which is convenient for installation. The filter cartridge 2 can be directly inserted towards the connecting end 13 without alignment.

[0017] A first step 132 is arranged outside the connecting end 13. The inner wall of the snap ring 4 is successively provided with a second step 41, a limiting surface 42 and an inclined surface 43 from top to bottom. The elastic member 61 is sleeved outside the connecting end 13, and both ends of the elastic member 61 are in contact with the first step 132 and the second step 41 respectively.

[0018] An annular groove 133 is arranged outside the connecting end 13. The elastic snap ring 71 is placed in the annular groove 133, and the cross section of the elastic snap ring 71 extends out of the annular groove 133, as shown in the attached Figure 3As shown, the elastic snap ring 71 extends a circular groove 133 in its cross-section to facilitate the limitation of the lower part of the snap ring 4, avoiding the downward movement of the snap ring 4 when there is no external force. Preferably, the elastic snap ring 71 can be made of rubber material.

[0019] A corrugated spring 8 is also provided between the filter cartridge 2 and the base 1. As shown in the appendix Figure 2 As shown, the corrugated spring 8 enhances the stability of the filter cartridge 2.

[0020] An O-ring 9 is provided between the filter cartridge 2 and the base 1, and an O-ring 9 is provided between the filter element 3 and the base 1. The O-ring 9 plays a sealing role, as shown in the appendix Figure 2 As shown.

[0021] Specifically, when disassembling, as shown in the appendix Figure 1 As shown, first push the snap ring 4 towards the base direction. Combining with the appendix Figure 2 As shown, at this time, the elastic member 61 is compressed by the second step 41. Then, combining with the appendix Figure 3 As shown, as the snap ring 4 moves upward as a whole relative to the whole, the limiting surface 42 moves away from the through hole 131. When the ball 5 in the through hole 131 is no longer under external force, the ball 5 moves away from the groove 21 outward, and the limitation of the groove 21 is released, then the filter cartridge 2 can be easily removed from the base 1. Similarly, when installing, first insert the connecting end of the filter cartridge 2 towards the base 1. The connecting end of the filter cartridge 2 squeezes the corrugated spring 8 until the groove 21 is opposite to the through hole 131; then put the ball 5 into the through hole 131; then push the snap ring 4 towards the elastic member 61 until the limiting surface 42 abuts against the ball 5, and the elastic snap ring 71 corresponds to the inclined surface 43. The upper part of the snap ring 4 is restricted by the elastic member 61, and the lower part is restricted by the elastic snap ring 71. Therefore, it will not slide when there is no external force.

[0022] The utility model effectively improves the problem of quick disassembly and assembly between the filter cartridge 2 and the base 1 of the existing filtering device. By setting the snap ring 4 and the ball 5 between the filter cartridge 2 and the base 1, combining the elastic snap ring 71 and the elastic member 61, the filter cartridge 2 and the base 1 can be quickly detachably connected, facilitating the removal of the filter cartridge 2 from the base 1, and then replacing the filter cartridge 2 with a new length or a new one. The disassembly and assembly operations are simple and easy to perform, with a wide range of applications and strong practicability.

[0023] Obviously, the above embodiments are only examples for clear illustration and not limitations on the implementation manners. For those skilled in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A filter device that can be quickly disassembled and assembled, comprising a base, a filter cartridge and a filter element, characterized in that: It also includes a clamping ring. The filter cartridge and the base are fixedly connected to each other by a ball limiter. A clamping ring is arranged on the outside of the ball. An upper limit piece and a lower limit piece are arranged on the upper and lower parts of the clamping ring.

2. A quickly detachable filter device according to claim 1, characterized in that: The base is provided with a connecting end, the opening end of the filter cartridge is inserted into the connecting end of the base, the connecting end is provided with a through hole, and a ball is arranged in the through hole; a groove is provided at the corresponding position of the filter cartridge and the through hole, and the ball is squeezed by the clamping ring and placed in the groove.

3. A quickly detachable filter device according to claim 2, characterized in that: The upper limit member is an elastic member, and the lower limit member is an elastic clamping ring.

4. A quickly detachable filter device according to claim 3, characterized in that: A first step is provided on the outer side of the connecting end, and a second step, a limiting surface and a slope are provided on the inner wall of the clamping ring in sequence from top to bottom. The elastic member is sleeved on the outer side of the connecting end, and both ends of the elastic member are respectively in conflict with the first step and the second step.

5. A quickly detachable filter device according to claim 4, characterized in that: An annular groove is arranged on the outer side of the connecting end, the elastic clamping ring is placed in the annular groove, and the cross section of the elastic clamping ring extends out of the annular groove.

6. The quickly detachable filter device according to claim 1, characterized in that: An inlet and an outlet are arranged on the base.

7. The quickly detachable filter device according to claim 1, characterized in that: A wave spring is also arranged between the filter cartridge and the base.

Images