阅读说明：本技术 集成nfc芯片的滤清器 (Filter integrated with NFC chip ) 是由 王志斌 于 2021-08-16 设计创作，主要内容包括：本发明公开了集成NFC芯片的滤清器,包括滤清器可回收结构和集成NFC芯片,所述滤清器可回收结构包括过滤芯,所述滤清器可回收结构还包括操作主体、外壳和拉紧主体,所述操作主体与外壳滑动安装在一起,所述拉紧主体的上端挂接在操作主体的侧端,所述拉紧主体滑动套接安装在外壳的外壁,所述拉紧主体的下端固定连接在过滤芯的下部外端,所述过滤芯位于外壳的内侧,所述过滤芯的下部与外壳密封挤压在一起,所述操作主体的中部下端与外壳挤压在一起,所述操作主体包括螺栓、拉架、挂孔、滑孔和螺纹孔,所述螺栓螺纹安装在螺纹孔的内端。本发明涉及滤清器设备技术领域,能够方便滤清器内部过滤芯元件进行更换,更好的满足使用需要。(The invention discloses a filter integrated with an NFC chip, which comprises a filter recoverable structure and the integrated NFC chip, wherein the filter recoverable structure comprises a filter element, the filter recoverable structure also comprises an operation main body, a shell and a tensioning main body, the operation main body and the shell are slidably mounted together, the upper end of the tensioning main body is hung at the side end of the operation main body, the tensioning main body is slidably sleeved on the outer wall of the shell, the lower end of the tensioning main body is fixedly connected to the outer end of the lower part of the filter element, the filter element is positioned on the inner side of the shell, the lower part of the filter element is hermetically extruded with the shell, the lower end of the middle part of the operation main body is extruded with the shell, the operation main body comprises a bolt, a pull frame, a hanging hole, a sliding hole and a threaded hole, and the bolt is threadedly mounted at the inner end of the threaded hole. The invention relates to the technical field of filter equipment, and can facilitate the replacement of filter element inside a filter, thereby better meeting the use requirement.)

1. Filter of integrated NFC chip, but including filter recovered structure (1) and integrated NFC chip, but filter recovered structure (1) is including filtering core (5), its characterized in that: the recyclable structure (1) of the filter further comprises an operation main body (2), a shell (3) and a tensioning main body (4), wherein the operation main body (2) and the shell (3) are slidably mounted together, the upper end of the tensioning main body (4) is hung at the side end of the operation main body (2), the tensioning main body (4) is slidably sleeved on the outer wall of the shell (3), the lower end of the tensioning main body (4) is fixedly connected to the outer end of the lower part of a filter core (5), the filter core (5) is located on the inner side of the shell (3), the lower part of the filter core (5) is hermetically extruded with the shell (3), and the lower end of the middle part of the operation main body (2) is extruded with the shell (3); the operation main part (2) includes bolt (7), and draw frame (8), hanging hole (9), slide opening (11) and screw hole (13), the inner in screw hole (13) is installed to bolt (7) screw thread, bolt (7) run through draw frame (8), the lower extreme and shell (3) extrusion of bolt (7) are in the same place, draw frame (8) slip scarf joint and install the upper end at shell (3), hanging hole (9) are provided with four, the upper end in draw frame (8) is seted up in hanging hole (9) fretwork, the upper end in hanging hole (9) is hung to the upper end of taut main part (4), the central upper end in draw frame (8) is seted up in screw hole (13) fretwork.

2. The NFC chip integrated filter of claim 1, wherein: the operation main body (2) further comprises a knob (6), the center of the lower end of the knob (6) is fixedly connected to the upper end of the bolt (7), and the knob (6) and the bolt (7) are of an integral structure.

3. The NFC chip integrated filter of claim 1, wherein: the operation main part (2) still include first draw-in groove (10), first draw-in groove (10) are high to have four, first draw-in groove (10) are seted up in the outer end of drawing frame (8), first draw-in groove (10) are in the same place with taut main part (4) slip joint.

4. The NFC chip integrated filter of claim 1, wherein: the operation main body (2) further comprises a first spring (12), the upper end of the first spring (12) is fixedly connected to the lower end of the pull frame (8), and the lower end of the first spring (12) is supported on the outer wall of the shell (3).

5. The NFC chip integrated filter of claim 1, wherein: the shell (3) comprises a guide block (14), four guide rods (16), a dismounting groove (17), a shell (18) and a thickening ring (20), the guide block (14) is provided with four, the lower end of the guide block (14) is fixedly connected to the upper end of the shell (18), the guide block (14) is clamped at the outer end of a pull frame (8) in a sliding mode, the guide rods (16) are provided with four, the guide rods (16) slide through sliding holes (11), the lower end of the guide rods (16) is fixedly connected to the upper end of the shell (18), the lower end of a bolt (7) is extruded to the upper end of the shell (18), the dismounting groove (17) is provided with four, the outer end of the guide block (14) is opened in the dismounting groove (17), and the thickening ring (20) is fixedly connected with the shell (18) into a whole.

6. The NFC chip integrated filter of claim 5, wherein: the shell (3) further comprises four check blocks (15), the lower ends of the check blocks (15) are fixedly connected to the upper ends of the guide rods (16), the check blocks (15) and the guide rods (16) are of an integrated structure, and the check blocks (15) are shielded on the upper side of the pull frame (8).

7. The NFC chip integrated filter of claim 5, wherein: the shell (3) further comprises second clamping grooves (19), the second clamping grooves (19) are connected with the tensioning main body (4) in a sliding and clamping mode, the number of the second clamping grooves (19) is four, and the second clamping grooves (19) are formed in the outer end of the thickening ring (20).

8. The NFC chip integrated filter of claim 1, wherein: the tensioning main body (4) comprises four hooks (21), four elastic pull rods (22) and a connecting cylinder (23), the hooks (21) are provided with four elastic pull rods (22), the lower ends of the hooks (21) are fixedly connected to the upper ends of the elastic pull rods (22), the hooks (21) are slidably inserted into the inner ends of the hanging holes (9), the elastic pull rods (22) are slidably clamped at the outer ends of the pull frames (8), the elastic pull rods (22) are slidably clamped with the shell (3), the connecting cylinder (23) is slidably sleeved on the outer wall of the shell (3), and the lower ends of the connecting cylinder (23) are fixedly connected with the filter cores (5).

9. The NFC chip integrated filter according to claim 1, wherein the filter element (5) comprises a second spring (24), a bypass valve (25), a filter paper (26), an end cover (28) and a water discharge prevention valve (29), the lower end of the second spring (24) is fixedly installed with the bypass valve (25), the bypass valve (25) and the water discharge prevention valve (29) are fixedly installed together through a bracket, the filter paper (26) is fixedly installed between the bypass valve (25) and the water discharge prevention valve (29), and the NFC chip integrated filter is characterized in that: the lower end of the water-proof and drainage valve (29) is hermetically clamped at the upper end of the end cover (28), and the outer end of the end cover (28) is fixedly connected with the lower end of the tensioning main body (4).

10. The NFC chip integrated filter of claim 9, wherein: the filter element (5) further comprises a sealing ring (27), the sealing ring (27) is fixedly connected to the upper end of the end cover (28), and the sealing ring (27) is extruded with the shell (3).

Technical Field

The invention relates to the technical field of filter equipment, in particular to a filter integrated with an NFC chip.

Background

The NFC chip is the important component part of NFC technique, it has communication function and certain computing power, part NFC chip product contains encryption logic circuit and encryption/decryption module even, calculate the life-span for filtering the core through the NFC chip, and when filtering the core and need changing, need change whole filter, thereby cause the extravagant problem of shell of filter, and the mode that adopts the cutting to retrieve then the destructiveness too big, and retrieve the process complicacy, cause the problem of retrieving cycle overlength, so need a scheme that can alleviate above-mentioned problem urgently.

Disclosure of Invention

The present invention is directed to a filter integrated with NFC chip to solve the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: the filter integrated with the NFC chip comprises a filter recoverable structure and the integrated NFC chip, wherein the filter recoverable structure comprises a filter element, the filter recoverable structure further comprises an operation main body, a shell and a tensioning main body, the operation main body and the shell are slidably mounted together, the upper end of the tensioning main body is hung at the side end of the operation main body, the tensioning main body is slidably sleeved on the outer wall of the shell, the lower end of the tensioning main body is fixedly connected to the outer end of the lower part of the filter element, the filter element is located on the inner side of the shell, the lower part of the filter element is hermetically extruded with the shell, and the lower end of the middle part of the operation main body is extruded with the shell; the operation main part includes the bolt, draws frame, hanging hole, slide opening and screw hole, the inner at the screw hole is installed to the bolt screw thread, the bolt runs through the frame, the lower extreme and the shell extrusion of bolt are in the same place, the frame slides and scarf joint installs the upper end at the shell, the hanging hole is provided with four, the upper end at the frame is seted up in the hanging hole fretwork, the inner in the hanging hole is hung to the upper end of taut main part, the center upper end at the frame is seted up in the screw hole fretwork.

Preferably, the operation main body further comprises a knob, the center of the lower end of the knob is fixedly connected to the upper end of the bolt, and the knob and the bolt are of an integrated structure.

Preferably, the operation main part still includes first draw-in groove, first draw-in groove height has four, first draw-in groove sets up in the outer end of drawing the frame, first draw-in groove slides the joint with taut main part and is in the same place.

Preferably, the operating body further comprises a first spring, an upper end of the first spring is fixedly connected to a lower end of the pull frame, and a lower end of the first spring is supported on an outer wall of the housing.

Preferably, the shell includes guide block, guide arm, dismouting groove, casing and thickened ring, the guide block is provided with four, the lower extreme fixed connection of guide block is in the upper end of casing, guide block sliding clamping connects the outer end at the pull frame, the guide arm is provided with four, the guide arm slides and runs through the slide opening, the lower extreme fixed connection of guide arm is in the upper end of casing, the lower extreme extrusion of bolt is in the upper end of casing, the dismouting groove is provided with four, the outer end at the guide block is seted up in the dismouting groove, thickened ring and casing fixed connection are as an organic whole.

Preferably, the shell further comprises four check blocks, the lower ends of the check blocks are fixedly connected to the upper ends of the guide rods, the check blocks and the guide rods are of an integrated structure, and the check blocks are shielded on the upper side of the pull frame.

Preferably, the shell further comprises four second clamping grooves, the second clamping grooves are connected with the tensioning main body in a sliding and clamping mode, and the second clamping grooves are formed in the outer end of the thickening ring.

Preferably, the tensioning main body comprises four hooks, four elastic pull rods and a connecting cylinder, the four hooks are arranged, the lower ends of the hooks are fixedly connected to the upper ends of the elastic pull rods, the hooks are slidably inserted into the inner ends of the hanging holes, the elastic pull rods are slidably clamped to the outer ends of the pull frames, the elastic pull rods are slidably clamped to the outer shell, the connecting cylinder is slidably sleeved on the outer wall of the outer shell, and the lower ends of the connecting cylinder are fixedly connected with the filter cores.

Preferably, the filter element comprises a second spring, a bypass valve, filter paper, an end cover and a water discharge prevention valve, the lower end of the second spring is fixedly installed together with the bypass valve, the bypass valve and the water discharge prevention valve are fixedly installed together through a support, the filter paper is fixedly installed between the bypass valve and the water discharge prevention valve, the lower end of the water discharge prevention valve is sealed and connected to the upper end of the end cover, and the outer end of the end cover is fixedly connected with the lower end of the tensioning main body.

Preferably, the filter element further comprises a sealing ring, the sealing ring is fixedly connected to the upper end of the end cover, and the sealing ring and the shell are extruded together.

Compared with the prior art, the invention has the following beneficial effects:

1. calculate the life-span for filtering the core through the NFC chip, when the suggestion needs to be changed in the judgement of NFC chip, change the filter core work of the inside filter core of filter, loosen the bolt earlier, make the lower extreme of bolt loosen taut main part, until the lower extreme of bolt is twisted to with the straining frame parallel and level, or twist out the bolt, then will draw the frame to press down, then will strain the upper end and the hanging hole split of main part, again will strain the main part and filter the core and pull out the separation downwards can, and then reach the purpose of retrieving shell reuse, resource utilization rate has been improved, when the user needs to assemble new filter core and shell together, press down with the straining frame earlier, hang in the hanging hole with the upper end of taut main part again, then tighten the bolt, drive the straining frame upwards to move behind the shell through the bolt extrusion, upwards drive taut main part through the straining frame and tighten up the filter core.

2. When the bolt is loosened, the operation is carried out through the knob by means of the wrench, otherwise, when the bolt is tightened, the operation is carried out in the reverse direction in the same manner; the upper part of the main body is stably tensioned by the first clamping groove.

3. Utilize first spring to provide ascending elasticity for drawing the frame, after taut main part upper end and hanging hole split, utilize first spring to upwards lift up and draw the frame, make taut main part align with the hanging hole again, and then reach the purpose of taut main part and hanging hole reassembly when preventing to dismantle, thereby made things convenient for the dismantlement, during the installation, peg graft in hanging hole inner in proper order with the upper end of taut main part, in-process, when user operating bolt, can prevent the draw the frame and move down, thereby make the problem that taut main part and hanging hole break away from, and then made things convenient for operating bolt in the installation, thereby reach the purpose of convenient dismantlement and installation.

4. The sliding direction of the pull frame is stabilized by the guide block and the guide rod, a user can conveniently detach or install the filter from the outside of a target by the aid of the detaching and installing grooves, and supporting strength of the upper end of the shell is improved by the aid of the thickening ring; the upward sliding range of the pull frame is limited in a mode that the stop block is shielded on the upper side of the pull frame, so that the aim of preventing the pull frame from falling off is fulfilled; the relative position between the main body and the shell is stably tensioned through the thickening ring; the operation main body drives the elastic pull rod to drive the connecting cylinder through the hook, and the filter element is upwards tensioned through the connecting cylinder.

5. After the filter element is disassembled, the drainage preventing valve is separated from the end cover, and then a new drainage preventing valve is clamped and fixed with the end cover, so that the purpose of recovering and tensioning the main body and the end cover is achieved; the shell and the filter core are sealed and extruded together through the sealing ring, so that a closed space is formed between the filter core and the shell, and internal elements of the filter core can be normally used.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic diagram of a split structure of the operation body of the present invention;

FIG. 3 is a schematic view of the housing structure of the present invention;

FIG. 4 is a schematic view of the tensioning body of the present invention;

fig. 5 is a schematic structural diagram of a filter element of the present invention.

In the figure: 1. the filter can be recovered; 2. an operation body; 3. a housing; 4. tensioning the body; 5. a filter element; 6. a knob; 7. a bolt; 8. pulling the frame; 9. hanging holes; 10. a first card slot; 11. a slide hole; 12. a first spring; 13. a threaded hole; 14. a guide block; 15. a stopper; 16. a guide bar; 17. disassembling and assembling the groove; 18. a housing; 19. a second card slot; 20. a thickening ring; 21. hooking; 22. an elastic pull rod; 23. a connecting cylinder; 24. a second spring; 25. a bypass valve; 26. filtering paper; 27. a seal ring; 28. an end cap; 29. and a water prevention and drainage valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc., indicate orientations or positional relationships according to those shown in the drawings, are only for convenience of description and simplicity of description, and are used to enhance the connection between the description and the drawings and to increase the clarity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Example one

Referring to fig. 1-2, an embodiment of the present invention is shown: the filter of the integrated NFC chip comprises a filter recoverable structure 1 and the integrated NFC chip, wherein the filter recoverable structure 1 comprises a filter element 5, the filter recoverable structure 1 further comprises an operation body 2, a shell 3 and a tensioning body 4, the operation body 2 and the shell 3 are slidably mounted together, the upper end of the tensioning body 4 is hung at the side end of the operation body 2, the tensioning body 4 is slidably sleeved on the outer wall of the shell 3, the lower end of the tensioning body 4 is fixedly connected to the outer end of the lower part of the filter element 5, the filter element 5 is positioned on the inner side of the shell 3, the lower part of the filter element 5 is hermetically extruded with the shell 3, and the lower end of the middle part of the operation body 2 is extruded with the shell 3; the operation main body 2 comprises a bolt 7, a pull frame 8, hanging holes 9, sliding holes 11 and threaded holes 13, the bolt 7 is installed at the inner end of the threaded hole 13 in a threaded mode, the bolt 7 penetrates through the pull frame 8, the lower end of the bolt 7 is extruded with the shell 3, the pull frame 8 is installed at the upper end of the shell 3 in a sliding embedding mode, the number of the hanging holes 9 is four, the hanging holes 9 are hollowed out and arranged at the upper end of the pull frame 8, the upper end of the tensioning main body 4 is hung at the inner end of the hanging holes 9, and the threaded hole 13 is hollowed out and arranged at the upper end of the center of the pull frame 8; the service life of the filter element is calculated by the NFC chip, when the NFC chip judges that the filter needs to be replaced, the work of replacing the filter element 5 in the filter is carried out, the bolt 7 is firstly unscrewed, the lower end of the bolt 7 is made to loosen the tightening body 4, until the lower end of the bolt 7 is screwed flush with the tension bracket 8, or the bolt 7 is screwed out, then the pull frame 8 is pressed downwards, then the upper end of the tensioning main body 4 is detached from the hanging hole 9, and then the tensioning main body 4 and the filter element 5 are pulled out downwards to be separated, thereby achieving the purpose of recycling the shell 3 and improving the resource utilization rate, when a user needs to assemble a new filter element 5 with the shell 3, the pull frame 8 is pressed downwards, then the upper end of the tensioning main body 4 is hung in the hanging hole 9, then the bolt 7 is screwed up, the shell 3 is extruded through the bolt 7, then the pull frame 8 is driven to move upwards, and the tensioning main body 4 is driven upwards through the pull frame 8 to tighten the filter element 5.

The operation main body 2 further comprises a knob 6, the center of the lower end of the knob 6 is fixedly connected to the upper end of a bolt 7, and the knob 6 and the bolt 7 are of an integrated structure; when the bolt 7 is unscrewed, the operation is carried out through the knob 6 by means of a spanner, and otherwise, when the bolt 7 is screwed, the operation is carried out in the reverse direction.

The operation main body 2 further comprises four first clamping grooves 10, the first clamping grooves 10 are formed in the outer end of the pulling frame 8, and the first clamping grooves 10 are clamped with the tensioning main body 4 in a sliding mode; the upper position of the tension body 4 is stabilized by the first catching groove 10.

The operation body 2 further comprises a first spring 12, the upper end of the first spring 12 is fixedly connected to the lower end of the pull frame 8, and the lower end of the first spring 12 is supported on the outer wall of the shell 3; utilize first spring 12 to provide ascending elasticity for draw frame 8, after taut main part 4 upper end and hanging hole 9 split, utilize first spring 12 to lift up draw frame 8 upwards, make taut main part 4 align with hanging hole 9 again, and then reach the purpose of taut main part 4 and hanging hole 9 reassembly when preventing to dismantle, thereby made things convenient for the dismantlement, during the installation, peg graft in hanging hole 9 inner in proper order the upper end of taut main part 4, in-process, when user operating bolt 7, can prevent draw frame 8 to move downwards, thereby make the problem that taut main part 4 and hanging hole 9 break away from, and then made things convenient for operating bolt 7 in the installation, thereby reach the purpose of convenient dismantlement and installation.

Example two

Referring to fig. 3, an embodiment of the present invention: the shell 3 comprises four guide blocks 14, four guide rods 16, a dismounting groove 17, a shell 18 and a thickened ring 20, the lower ends of the guide blocks 14 are fixedly connected to the upper end of the shell 18, the guide blocks 14 are slidably clamped at the outer end of the pull frame 8, the four guide rods 16 are arranged, the guide rods 16 slidably penetrate through the sliding holes 11, the lower ends of the guide rods 16 are fixedly connected to the upper end of the shell 18, the lower end of the bolt 7 is extruded at the upper end of the shell 18, the dismounting groove 17 is provided with four dismounting grooves 17, the dismounting groove 17 is formed in the outer end of the guide blocks 14, and the thickened ring 20 and the shell 18 are fixedly connected into a whole; the guide block 14 and the guide rod 16 are used for stabilizing the sliding direction of the pull frame 8, the dismounting groove 17 is used for facilitating a user to dismount or mount the filter from the target, and the support strength of the upper end of the shell 18 is increased through the thickening ring 20.

The shell 3 further comprises four stoppers 15, the lower ends of the stoppers 15 are fixedly connected to the upper ends of the guide rods 16, the stoppers 15 and the guide rods 16 are of an integral structure, and the stoppers 15 are shielded on the upper side of the pull frame 8; the upward sliding range of the pull frame 8 is limited by the mode that the stop block 15 is blocked at the upper side of the pull frame 8, so that the aim of preventing the pull frame 8 from falling off is fulfilled.

The shell 3 further comprises second clamping grooves 19, the second clamping grooves 19 are clamped with the tensioning main body 4 in a sliding mode, the number of the second clamping grooves 19 is four, and the second clamping grooves 19 are formed in the outer end of the thickening ring 20; the relative position between the tightening body 4 and the housing 3 is stabilized by the thickening ring 20.

EXAMPLE III

Referring to fig. 4, an embodiment of the present invention: the tensioning main body 4 comprises four hooks 21, four elastic pull rods 22 and connecting cylinders 23, the four hooks 21 are provided, the four elastic pull rods 22 are provided, the lower end of each hook 21 is fixedly connected to the upper end of each elastic pull rod 22, the hooks 21 are slidably inserted into the inner ends of the hanging holes 9, the elastic pull rods 22 are slidably clamped at the outer ends of the pull frames 8, the elastic pull rods 22 are slidably clamped with the shell 3, the connecting cylinders 23 are slidably sleeved on the outer wall of the shell 3, and the lower ends of the connecting cylinders 23 are fixedly connected with the filter cores 5; the operation body 2 drives the elastic pull rod 22 to drive the connecting cylinder 23 through the hook 21, and the filter element 5 is upwards tensioned through the connecting cylinder 23.

Example four

Referring to fig. 5, an embodiment of the present invention: the filter element 5 comprises a second spring 24, a bypass valve 25, filter paper 26, an end cover 28 and a water discharge prevention valve 29, the lower end of the second spring 24 is fixedly installed with the bypass valve 25, the bypass valve 25 and the water discharge prevention valve 29 are fixedly installed together through a support, the filter paper 26 is fixedly installed between the bypass valve 25 and the water discharge prevention valve 29, the lower end of the water discharge prevention valve 29 is hermetically clamped at the upper end of the end cover 28, and the outer end of the end cover 28 is fixedly connected with the lower end of the tensioning body 4; after the filter element 5 is disassembled, the water discharge prevention valve 29 and the end cover 28 are separated, and then the new water discharge prevention valve 29 and the end cover 28 are clamped and fixed, so that the purpose of recovering and tensioning the main body 4 and the end cover 28 is achieved.

The filter element 5 further comprises a sealing ring 27, the sealing ring 27 is fixedly connected to the upper end of the end cover 28, and the sealing ring 27 and the shell 3 are extruded together; the housing 3 and the filter element 5 are sealed and pressed together through a sealing ring 27, so that a closed space is formed between the filter element 5 and the housing 3, and the internal elements of the filter element can be normally used.

The working principle is as follows: the service life of the filter element is calculated by the NFC chip, when the NFC chip judges that the filter needs to be replaced, the work of replacing the filter element 5 in the filter is carried out, the bolt 7 is firstly unscrewed, the lower end of the bolt 7 is made to loosen the tightening body 4, until the lower end of the bolt 7 is screwed flush with the tension bracket 8, or the bolt 7 is screwed out, then the pull frame 8 is pressed downwards, then the upper end of the tensioning main body 4 is detached from the hanging hole 9, and then the tensioning main body 4 and the filter element 5 are pulled out downwards to be separated, thereby achieving the purpose of recycling the shell 3 and improving the resource utilization rate, when a user needs to assemble a new filter element 5 with the shell 3, the pull frame 8 is pressed downwards, then the upper end of the tensioning main body 4 is hung in the hanging hole 9, then, the bolt 7 is screwed, the shell 3 is extruded through the bolt 7, the pull frame 8 is driven to move upwards, and the tensioning main body 4 is driven upwards through the pull frame 8 to tighten the filter element 5; when the bolt 7 is unscrewed, the operation is carried out through the knob 6 by means of a spanner, otherwise, when the bolt 7 is screwed, the reverse operation is carried out in the same way; the upper part of the main body 4 is stably tensioned by using the first clamping groove 10; the first spring 12 is utilized to provide upward elastic force for the pull frame 8, after the upper end of the tensioning main body 4 is detached from the hanging hole 9, the pull frame 8 is lifted upwards by utilizing the first spring 12, so that the tensioning main body 4 is aligned with the hanging hole 9 again, and the purpose of preventing the tensioning main body 4 from being reassembled with the hanging hole 9 during disassembly is achieved, so that disassembly is facilitated; the guide block 14 and the guide rod 16 are used for stabilizing the sliding direction of the pull frame 8, the dismounting groove 17 is used for facilitating a user to dismount or mount the filter from the target, and the support strength of the upper end of the shell 18 is increased through the thickened ring 20; the upward sliding range of the pull frame 8 is limited in a mode that the stop block 15 covers the upper side of the pull frame 8, so that the aim of preventing the pull frame 8 from falling off is fulfilled; the relative position between the tensioning body 4 and the housing 3 is stabilized by the thickening ring 20; the operation main body 2 drives the elastic pull rod 22 to drive the connecting cylinder 23 through the hook 21, and upwards tensions the filter element 5 through the connecting cylinder 23; after the filter element 5 is disassembled, the water discharge prevention valve 29 and the end cover 28 are separated, and then the new water discharge prevention valve 29 and the end cover 28 are clamped and fixed, so that the purpose of recovering and tensioning the main body 4 and the end cover 28 is achieved; the housing 3 and the filter element 5 are sealed and pressed together through a sealing ring 27, so that a closed space is formed between the filter element 5 and the housing 3, and the internal elements of the filter element can be normally used.

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