Installation and disassembly structure of filter element

Abstract

A filter element installation and disassembly structure includes a filter element and a filter element fixing seat. The filter element fixing seat is provided with a filter element seat that is connected to the filter element. The upper end of the filter element is a plug-in end with a reduced diameter. A semicircular protrusion is provided on one side of the rear portion of the plug-in end. An opening for the plug-in end is provided on one side of the middle portion of the filter element seat. A corresponding notch is provided on one side of the filter element fixing seat. A guide slot is provided on one side of the notch for the filter element to rotate at a certain angle. An arc-shaped rib that cooperates with the semicircular protrusion and is squeezed on the inner wall of the filter element fixing seat. An extrusion portion is provided on the outer wall of the filter element fixing seat. A corresponding extrusion block is provided on the outer wall of the filter element. During installation, the filter element is squeezed by the semicircular protrusion and the arc-shaped rib, so that the block is inserted into the slot to fix the filter element. During disassembly, the extrusion portion cooperates with the extrusion block to automatically extrude the filter element from the filter element seat. The present invention has a simple structure. The filter element can be assembled or disassembled by simply rotating 45 degrees. The operation is convenient and fast, and the cost is low.

Description

Technical Field

[0001] The present invention belongs to the technical field of water treatment technology, and relates to an assembly structure of a filter element, and in particular to an installation and disassembly structure of a filter element. Background Art

[0002] In order to solve the problem of secondary pollution of tap water and harmful substances in tap water caused by raw water pollution, more and more water purifiers are being used.

[0003] A water purifier, also known as a water purifier or water purifier, is a water treatment device that deeply filters and purifies water according to specific usage requirements. Its function is to remove floating debris, heavy metals, bacteria, viruses, residual chlorine, silt, rust, and microorganisms from the water. As a key component of a water purifier, the filter element requires cleaning and replacement after a period of use. In existing technology, the filter element is typically secured to the water purifier's mounting base via a rotating snap-on or threaded connection. Improper assembly and disassembly can easily cause it to loosen and fall off, leading to leaks. Therefore, self-assembly and disassembly are cumbersome for users.

[0004] After investigation, the existing Chinese patent number is 202020003931.8, "A mounting structure for a filter element and a filter element seat and a water purifier", which includes: a filter element and a filter element seat, the filter element seat includes a base and a rotating seat, the base is fixed to the water purifier, and a first water inlet and a first water outlet are provided in the middle of the bottom wall of the base, and a second water inlet and a second water outlet are provided in the middle of the bottom wall of the rotating seat. The rotating seat is embedded in the base and can rotate around the axis of the base in the base between the water production position and the water stop position. When the rotating seat rotates to the water production position, the second water inlet corresponds to the first water inlet, and the second water outlet corresponds to the first water outlet; when the rotating seat rotates to the water stop position, the bottom wall of the rotating seat seals the first water inlet and the first water outlet; structures that cooperate with each other are provided on the bottom of the filter element and the rotating seat, and the filter element can drive the rotating seat to rotate from the water stop position to the water production position. When the filter element is in the water stop position, the filter element can be removed from the filter element seat.

[0005] In addition, the Chinese patent "A water purifier filter element locking device" with patent number 202120455761.1 includes a rotatable connecting seat and a filter element body that can be detachably connected to the connecting seat. A rotatable spring block is hinged in the connecting seat, and an elastic member is installed between the first end of the spring block and the inner wall of the connecting seat. A pressing member is provided at the second end of the spring block, and the free end of the pressing member can extend outside the connecting seat through a through hole provided on the side wall of the connecting seat; a protrusion corresponding to the position of the spring block is provided on the upper end side wall of the filter element body, and the spring block and the protrusion are correspondingly provided with inclined surfaces for convenient sliding in; the device is easy to install and disassemble, and can prevent the filter element from loosening or falling off.

[0006] The above two patents can both disassemble and assemble the filter element, but the structure is not simple enough and the operation is not convenient enough, and further improvement is needed. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a filter element installation and disassembly structure with a simple structure and convenient operation in response to the above technical status quo.

[0008] The technical solution adopted by the present invention to solve the above technical problems is: a filter element installation and disassembly structure, including a filter element and a filter element fixing seat, the filter element fixing seat is fixed in the main unit, and is characterized in that: a filter element seat that is rotatably provided in the filter element fixing seat and is connected to the filter element, the upper end of the filter element is a plug-in end with a reduced diameter, a semicircular protrusion is provided on at least one side of the middle part of the plug-in end, an opening is provided on the lower side of the middle part of the filter element seat for inserting the plug-in end of the filter element, and correspondingly, a mounting port for inserting the plug-in end is provided on one side of the filter element fixing seat, and a mounting port is provided on one side of the mounting port. A guide slot is provided for the filter element to rotate at a certain angle. The inner wall of the filter element fixing seat is provided with an arc-shaped convex rib that cooperates with the arc surface of the semicircular protrusion to squeeze. The outer wall of the filter element fixing seat is provided with a cam profile extrusion part. The outer wall of the upper end of the filter element is provided with a corresponding extrusion block. When the filter element is inserted into the filter element seat for assembly, the filter element drives the filter element seat to rotate along the guide slot. The filter element is automatically lifted upward until it is positioned through the extrusion cooperation of the semicircular protrusion and the arc-shaped convex rib; when the filter element is disassembled, the filter element rotates in the opposite direction, and the filter element is automatically extruded downward through the cooperation of the extrusion block and the extrusion part.

[0009] As an improvement, the rear end of the filter element fixing seat is provided with a fixing plate fixedly connected to the main unit, and the middle part of the filter element fixing seat is recessed with an installation cavity for the filter element fixing seat to be placed. The filter element fixing seat is installed in the installation cavity, and the middle part of the side of the filter element fixing seat is respectively provided with a water inlet hole and a water outlet hole. The installation port is opened at the lower corner position of the side of the filter element fixing seat away from the fixing plate, and the guide slot is opened horizontally at the lower end of the filter element fixing seat.

[0010] Furthermore, a positioning concave surface for positioning the semicircular convex block is provided at the end of the arc-shaped convex rib. When the filter element is assembled in place, the semicircular convex block falls into the positioning concave surface for positioning.

[0011] Furthermore, a clamping block is provided at the front end and upper end of the semicircular protrusion, and an inner recess is provided on one side of the filter element seat corresponding to the opening, and a corresponding clamping groove is provided in the inner recess corresponding to the position of the clamping block. After the filter element is inserted into the filter element seat, it is positioned with the filter element seat through the cooperation of the clamping block and the clamping groove.

[0012] Furthermore, the extrusion part is arranged on the outer side of the filter element fixing seat corresponding to the installation port, and the extrusion block is convexly provided on the step surface of the outer shell of the filter element. The extrusion block and the semicircular protrusion are on the same side. When the filter element is removed, the filter element is rotated toward the installation port, and the semicircular protrusion is separated from the positioning concave surface of the arc-shaped convex rib. The extrusion block and the extrusion part are pressed against each other, so that the card block is separated from the card slot, and the filter element is automatically squeezed downward.

[0013] Furthermore, the front end of the plug-in end is provided with two sealing rings that cooperate with the filter element seat.

[0014] Preferably, the filter element is rotated at an angle of 45 degrees after being inserted into the filter element seat. A plug is provided on the top surface of the filter element seat to facilitate manufacturing and molding.

[0015] Finally, a semicircular protrusion is provided on both the left and right sides of the middle of the plug end. Correspondingly, an arc-shaped rib is provided on the left and right inner walls of the filter element fixing seat to cooperate with the arc surface of the semicircular protrusion and squeeze.

[0016] Compared with the existing technology, the advantages of the present invention are: a filter cartridge holder is provided within the filter cartridge holder, and the filter cartridge is connected to the filter cartridge holder by plugging. During installation, the filter cartridge is squeezed by the semicircular protrusion and the arc-shaped rib, so that the clamping block is inserted into the clamping groove of the filter cartridge holder to fix the filter cartridge. During removal, the squeeze portion and the squeeze block cooperate to automatically squeeze the filter cartridge out of the filter cartridge holder. The present invention has a simple structure, and the filter cartridge can be assembled or disassembled by simply rotating it 45 degrees. It is convenient and quick to operate, and the cost is also low, making it convenient for assembly and disassembly in confined spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a filter element during installation according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure after the filter element is assembled and positioned;

[0019] Figure 3 for Figure 2 sectional view of

[0020] Figure 4 This is a schematic structural diagram of a filter element according to an embodiment of the present invention when it is disassembled;

[0021] Figure 5 for Figure 4 Schematic diagram of the structure of the filter element in the final disassembly state;

[0022] Figure 6 for Figure 5 sectional view of

[0023] Figure 7 A schematic diagram of a waterway according to an embodiment of the present invention;

[0024] Figure 8 2 is a three-dimensional cross-sectional view of an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0026] like Figures 1 to 8 As shown, a filter element installation and disassembly structure includes a filter element 1, a filter element seat 3, and a filter element fixing seat 2. The rear end of the filter element fixing seat 2 is provided with a fixing plate 21, and the filter element fixing seat 2 is fixed to the main unit via the fixing plate 21. The middle portion of the filter element fixing seat 2 has an installation cavity for the filter element seat 3 to be placed. The filter element seat 3 is correspondingly substantially cylindrical and is rotatably arranged within the filter element fixing seat 2 to form a rotary connection. In addition, a water outlet hole 32 and a water inlet hole 34 are respectively provided in the middle portion of the side of the filter element seat 3. The upper end of the filter element 1 is a reduced diameter plug end 11, and semicircular protrusions 12 are provided on the left and right sides of the middle portion of the plug end 11. The filter element fixing seat 2 has an installation opening 25 for inserting the plug end 11 at the lower corner position on the side away from the fixing plate 21. Correspondingly, an opening 33 for inserting the plug end 11 of the filter element 1 is provided on one side of the middle portion of the filter element seat 3. A plug 35 is provided on the top surface of the filter element seat 3. The lower end of the filter cartridge holder 2 is provided with a guide slot 26 that communicates with the mounting opening 25 and allows the filter cartridge 1 to rotate at a certain angle. The left and right inner walls of the filter cartridge holder 2 are provided with arcuate ribs 23 that cooperate with and squeeze the arcuate surface of the semicircular protrusion 12. The ends of the arcuate ribs 23 are provided with positioning recesses 24 for positioning the semicircular protrusion 12. When the filter cartridge 1 is assembled into place, it is positioned by the semicircular protrusion 12 falling into the positioning recesses 24. A clamping block 13 is provided at the front and upper ends of the semicircular protrusion 12. The filter cartridge holder 3 has an inner recess on one side corresponding to the opening. The inner recess has a corresponding slot 31 corresponding to the position of the clamping block 13. After the filter cartridge 1 is inserted into the filter cartridge holder 3 and rotated into place, it is positioned with the filter cartridge holder 3 through the cooperation between the clamping block 13 and the slot 31.

[0027] The filter element fixing seat 2 is provided with an extrusion portion 22 with a cam profile on the outside corresponding to the installation opening 25, and a corresponding extrusion block 14 is convexly provided on the stepped surface of the outer shell of the filter element 1. The extrusion block 14 and the semicircular protrusion 12 are on the same side. When the filter element 1 is disassembled, the filter element 1 is rotated toward the installation opening 25, and the semicircular protrusion 12 is disengaged from the positioning concave surface 23 of the arc-shaped convex rib 23. The extrusion block 14 and the extrusion portion 22 are pressed against each other, so that the clamping block 13 is disengaged from the clamping groove 31, and the filter element 1 is automatically squeezed downward.

[0028] In order to improve the sealing and avoid water leakage, two sealing rings 10 are provided at the front end of the plug-in end 11 of the filter element 1 to cooperate with the filter element seat 3. After the filter element 1 is inserted into the filter element seat 3, the rotation angle is 45 degrees.

[0029] The water channel structure in the filter element seat 3 and the water channel connection between the filter element seat 3 and the filter element 1 are shown in FIG. Figure 7 and 8 , and the rest are consistent with the prior art and will not be described here.

[0030] The specific operation process is as follows:

[0031] When installing, if Figures 1-3 Align the plug-in end 11 of the filter element 1 with the position and insert it into the filter element seat 3. Rotate the filter element 1 inward. The filter element 1 drives the filter element seat 3 to rotate along the guide slot 26. The semicircular protrusion 12 and the arc-shaped rib 23 abut against each other. The filter element 1 is automatically lifted upward by squeezing and fitting until it falls to the arc-shaped concave surface 24 for positioning. At this time, the clamping block 13 is inserted into the clamping slot 31 for positioning.

[0032] When disassembling, if Figures 4-6 , rotate the filter element 1 in the opposite direction, the semicircular protrusion 12 disengages from the arc-shaped concave surface 24, and continues to rotate, the extrusion block 14 and the extrusion part 22 are pressed against each other, and the card block 13 is disengaged from the card slot 31 through the cooperation and extrusion of the extrusion block 14 and the extrusion part 22, and the filter element 1 is automatically extruded downward.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A filter element installation and disassembly structure, comprising a filter element and a filter element fixing seat, wherein the filter element fixing seat is fixed in a main unit, and is characterized in that: The filter element is fixed on the filter element, and the filter element is fixed on the filter element. The filter element is fixed on the filter element, and the filter element is fixed on the filter element. The filter element is fixed on the filter element, and the filter element is fixed on the filter element. The end of the arc-shaped convex rib is provided with a positioning concave surface for positioning the semicircular convex block. When the filter element is assembled in place, the semicircular convex block falls into the positioning concave surface for positioning; The front end and upper end of the semicircular protrusion are convexly provided with a clamping block, and the filter element seat is provided with an inner concave portion on one side corresponding to the opening, and the inner concave portion is provided with a corresponding clamping groove corresponding to the position of the clamping block. After the filter element is inserted into the filter element seat, the clamping block and the clamping groove cooperate to position the filter element seat; The extrusion part is arranged on the outer side of the filter element fixing seat corresponding to the installation opening, and the extrusion block is convexly arranged on the step surface of the outer shell of the filter element. The extrusion block and the semicircular protrusion are on the same side. When the filter element is removed, the filter element is rotated toward the installation opening, and the semicircular protrusion is separated from the positioning concave surface of the arc-shaped convex rib. The extrusion block and the extrusion part are pressed against each other, so that the clamping block is separated from the clamping groove, and the filter element is automatically squeezed downward.

2. The installation and disassembly structure according to claim 1, characterized in that: The rear end of the filter element fixing seat is provided with a fixing plate fixedly connected to the main unit, and the middle part of the filter element fixing seat is recessed with an installation cavity for the filter element fixing seat to be placed. The filter element fixing seat is installed in the installation cavity, and the middle part of the side of the filter element fixing seat is respectively provided with a water inlet hole and a water outlet hole. The installation port is opened at the lower corner position of the side of the filter element fixing seat away from the fixing plate, and the guide slot is opened horizontally at the lower end of the filter element fixing seat.

3. The installation and disassembly structure according to claim 1 or 2, characterized in that: The front end of the plug-in end is provided with two sealing rings matched with the filter element seat.

4. The installation and disassembly structure according to claim 1 or 2, characterized in that: The filter element is rotated at an angle of 45 degrees after being inserted into the filter element seat.

5. The installation and disassembly structure according to claim 1 or 2, characterized in that: The top surface of the filter element seat is provided with a plug.

6. The installation and disassembly structure according to claim 1 or 2, characterized in that: A semicircular convex block is provided on both the left and right sides of the middle of the plug-in end. Correspondingly, an arc-shaped convex rib is provided on the left and right inner walls of the filter element fixing seat to cooperate with the arc surface of the semicircular convex block for extrusion.

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