Pre-filter with filter element convenient to disassemble

Abstract

The utility model provides a pre-filter with a filter element convenient to disassemble. The pre-filter comprises a filter cartridge, a mounting seat and the filter element arranged in the filter cartridge, wherein the filter cartridge and the mounting seat are connected together; a filter element base for placing a filter element is arranged in a filter cavity of the filter cartridge, and a filter element dismounting part for independently dismounting the filter element is arranged on a mounting seat of which two ends are provided with a water inlet and a water outlet; the filter element dismounting part comprises a top cover detachably fixed on the mounting seat and a clamping assembly arranged on the top cover, the clamping assembly comprises a clamping part arranged on the inner side of the top cover and a connecting rod which can be longitudinally and movably arranged on the top cover, one end of the connecting rod is connected with the clamping part, and the other end of the connecting rod penetrates through and extends to the outer side of the top cover; the clamping piece is controlled by the connecting rod to clamp and fix the filter element, and is matched with the rotation of the top cover, so that the filter element can be taken down from the filter element base, and finally the top cover is taken down from the mounting seat, thereby completing the independent and rapid disassembly and replacement of the filter element, omitting the overall disassembly of the pre-filter, saving manpower and time, and improving the disassembly and replacement efficiency of the filter element.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and in particular relates to a pre-filter with a filter element that is easy to disassemble. Background Art

[0002] In the process of tap water from the water plant being supplied to individual users through the complex and huge water supply network in the city, the long-distance water transmission pipelines and taps at each node will cause large granular impurities such as sediment, rust and floating objects to settle in the tap water, and the secondary water supply of water tanks installed in residential areas or single-family buildings will cause the deposition of insect eggs, red worms or other microbial remains. Therefore, after the tap water enters the household, it is usually necessary to install a pre-filter after the water meter to restore the tap water to the standard before leaving the factory, intercept and remove the precipitated impurities entrained in the tap water, protect the human body and avoid harm; at the same time, it can also protect downstream equipment such as downstream pipelines, water purifiers, water heaters, washing machines, faucets and showers. The pre-filter mainly relies on valves to control opening and closing, and is usually a "T"-shaped structure. The left and right ends of the upper "horizontal" position are the water inlet and outlet respectively, and the lower "vertical" position is the body that accommodates the filter element, and its lower end is the sewage outlet; among them, the filter element is the main structure in the pre-filter to intercept and remove precipitated impurities. After long-term use, some solid particles filtered out will adhere to the filter element, block the filter holes on the filter screen, and reduce the filtering effect of the filter screen. Although there are some pre-filters that can use the impact force of water flow to flush the filter element, the flushing effect will inevitably weaken over time. Therefore, the filter element of the pre-filter usually needs to be disassembled regularly for deep cleaning or replacement; but the internal structure of the pre-filter is complicated. If the filter element needs to be disassembled, it is inevitable to disassemble and assemble the pre-filter as a whole, making the disassembly and assembly work difficult and complicated. The whole process of disassembly and reassembly of the filter element will also require a lot of time and effort, causing inconvenience.

[0003] Therefore, it is necessary to provide a pre-filter that is easy to disassemble the filter element, which can save the main body removal process of the pre-filter, quickly complete the separate disassembly and replacement of the filter element, save manpower and time, and improve the efficiency of filter element removal and replacement. Utility Model Content

[0004] In view of the above existing problems, the utility model proposes a pre-filter with convenient disassembly of the filter element, which can save the main body disassembly process of the pre-filter, quickly complete the separate disassembly and replacement of the filter element, save manpower and time, and improve the efficiency of filter element removal and replacement.

[0005] To achieve the above-mentioned purpose, the utility model provides a pre-filter with convenient disassembly of the filter element, comprising a filter element, a filter cartridge and a mounting seat, the filter cartridge having an opening at the top and a hollow filter chamber inside, a filter element base being arranged in the filter chamber, and the filter element being placed on the filter element base; the mounting seat is arranged at the top of the filter cartridge, and a water inlet and a water outlet are respectively arranged at two ends of the filter cartridge, and a filter element disassembly piece is arranged at the center; the filter element disassembly piece comprises a top cover and a clamping assembly, the top cover is detachably fixed to the mounting seat, the clamping assembly comprises a clamping piece and a connecting rod, the clamping piece is arranged on the inner side of the top cover, the connecting rod is longitudinally movably arranged on the top cover, one end of the connecting rod is connected to the clamping piece, and the other end passes through and extends to the outer side of the top cover, so as to control the clamping piece to complete the clamping, fixing and disassembly of the filter element.

[0006] Preferably, the clamping member includes an active slider, two groups of passive sliders and two clips, the clips are symmetrically arranged below the passive slider, and the active slider can be slid up and down between the two groups of passive sliders; one end of the connecting rod is fixed on the active slider, a guide column is arranged on the surface of the middle section, and an auxiliary operating member is arranged on the end away from the active slider.

[0007] Preferably, a connecting hole is provided on the top cover; a longitudinal telescopic groove is provided on the inner surface of the connecting hole, and transverse limiting grooves are provided at both ends of the telescopic groove.

[0008] Preferably, the filter element comprises a connecting ring, a main filter screen and a connecting seat, the connecting ring and the connecting seat are respectively fixed at two ends of the main filter screen, and corresponding threaded structures are also arranged on the connecting seat and the filter element base for placing and fixing the filter element.

[0009] Preferably, corresponding screw holes are provided on the top cover and the mounting seat for connection and fixation between the filter element removal component and the mounting seat.

[0010] Preferably, a water stop ring is provided at the connection between the top cover and the top end of the filter cartridge.

[0011] Preferably, the water inlet is provided with a water inlet ball valve.

[0012] Preferably, sealing gaskets are provided on the water inlet and the water outlet.

[0013] Preferably, the filter cartridge is provided with a pressure gauge, and the pressure gauge is used to detect the water pressure in the filter cavity.

[0014] Preferably, a transparent viewing window is provided on the filter cartridge.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a pre-filter for convenient removal of the filter element, comprising a filter cartridge and a mounting seat connected together, and a filter element arranged in the filter cartridge; a filter cartridge base for accommodating the filter element is arranged in the filter cavity of the filter cartridge, and a filter cartridge removal piece for separately removing the filter element is arranged on the mounting seat with a water inlet and a water outlet respectively arranged at two ends; the filter cartridge removal piece comprises a detachable top cover fixed on the mounting seat and a clamping assembly arranged on the top cover, the clamping assembly comprises a clamping piece arranged on the inner side of the top cover and a connecting rod arranged on the top cover which can be longitudinally movable, one end of the connecting rod is connected to the clamping piece, and the other end passes through and extends to the outer side of the top cover; the clamping piece can be controlled by the connecting rod to clamp and fix the filter element, and the filter element can be removed from the filter cartridge base by cooperating with the rotation of the top cover, and finally, the top cover only needs to be removed from the mounting seat to complete the quick removal and replacement of the filter element separately, thereby eliminating the need for overall removal of the pre-filter, saving manpower and time, and improving the efficiency of filter element removal and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the pre-filter of the utility model with convenient removal of the filter element.

[0017] In the figure: 1-filter cartridge, 11-filter chamber, 12-filter element base, 2-filter element, 21-connecting ring, 22-main filter screen, 23-connecting seat, 3-mounting seat, 31-water inlet, 32-water outlet, 33-water inlet ball valve, 4-top cover, 41-screw hole, 42-water stop ring, 43-lateral limit groove, 5-clamping frame, 51-passive slider, 52-active slider, 53-clamping piece, 54-connecting rod, 55-guide column, 56-auxiliary operating parts. DETAILED DESCRIPTION

[0018] To further describe the utility model in detail, the following is an explanation with reference to the accompanying drawings. It is particularly pointed out that the embodiments described below are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1The present embodiment provides a pre-filter for easy removal of the filter element, comprising a filter element 2, a filter cartridge 1 and a mounting seat 3; the mounting seat 3 is arranged on the top of the filter cartridge 1, and is provided with a water inlet 31 and a water outlet 32 ​​at both ends, for connecting the pre-filter with a water pipe; the filter element 2 is arranged inside the filter cartridge 1, for intercepting and filtering the precipitated impurities carried in the water flow; in the present embodiment, the water inlet 31 is provided with a water inlet ball valve 33; the water inlet 31 and the water outlet 32 ​​are both provided with sealing gaskets.

[0020] The filter cartridge 1 is open at the top and has a hollow filter chamber 11 inside. A filter element base 12 is provided in the filter chamber 11. In the present embodiment, a threaded structure for placing and fixing the filter element 2 is provided on the filter element base 12. The filter cartridge 1 is also provided with a pressure gauge, a transparent visual window and a sewage outlet. The pressure gauge is used to detect the water pressure in the filter chamber 11, and the transparent visual window is used to observe the contamination condition of the filter element 2.

[0021] The filter element 2 includes a connecting ring 21, a main filter screen 22 and a connecting seat 23. The connecting ring 21 and the connecting seat 23 are respectively fixed at both ends of the main filter screen 22. The connecting seat 23 is provided with a threaded structure corresponding to the filter element base 12, and the filter element 2 can be placed and fixed on the filter element base 12 through this threaded structure. In this embodiment, the main filter screen 22 is a stainless steel filter screen with a filtration aperture of 40 microns. The connecting ring 21 and the connecting seat 23 are made of high-strength plastic material and are respectively wrapped and fixed at both ends of the stainless steel filter screen to ensure that the impurities intercepted by the stainless steel filter screen will not flow back into the filtered water with the water flow.

[0022] A filter element disassembly piece is arranged at the center of the mounting seat 3, and the filter element disassembly piece includes a top cover 4 detachably fixed to the mounting seat 3 and a clamping assembly arranged on the top cover 4; in this embodiment, corresponding connection screw holes 41 are arranged on the edge of the top cover 4 and the position of the mounting seat 3 where the filter element disassembly piece is placed, and the connection, fixing and disassembly between the filter element disassembly piece and the mounting seat 3 can be achieved by screws;

[0023] A water stop ring 42 is provided at the connection between the inner side of the top cover 4 and the top of the filter cartridge 1, so that water can only enter from the water inlet 31 and needs to flow out from the water outlet 32 ​​through the filter chamber 11, so that all the water flows through the filter element 2 to complete the filtration, thereby ensuring the filtering effect of the pre-filter; a connecting hole is provided at the center of the top cover 4, and a longitudinal telescopic groove is provided on the inner surface of the connecting hole, and transverse limit grooves 43 are provided at both ends of the telescopic groove;

[0024] The clamping assembly includes a clamping member and a connecting rod 54; the clamping member is arranged on the inner side of the top cover 4, including a clamping frame 5 fixed to the inner side of the top cover 4, two groups of passive sliders 51 arranged on the clamping frame 5, an active slider 52 that can slide up and down and is arranged between the two groups of passive sliders 51, and two clips 53 symmetrically arranged below the passive slider 51, the cross-section of the active slider 52 is a trapezoid with a larger upper part and a smaller lower part, and the cross-section of the passive slider 51 is a right-angled trapezoid with a smaller upper part and a larger lower part; one end of the connecting rod 54 is fixed to the active slider 52, and a guide rail column 55 is arranged on the surface of the middle section, and the end away from the active slider 52 penetrates and extends to the outside of the top cover 4, and the connecting rod 54 is provided with an auxiliary Operating member 56; the guide rail column 55 is movably arranged in the longitudinal telescopic groove, and the connecting rod 54 can be controlled to move up and down by operating the auxiliary operating member 56, thereby driving the active slider 52 to move up and down between the two groups of passive sliders 51, changing the spacing between the two groups of passive sliders 51, and then controlling the clamping or loosening of the clip 53, which can be used to control the clamping member to complete the clamping, fixing and disassembly of the filter element 2; in this embodiment, the number of the clamping members is at least 2 groups, which are symmetrically arranged on the inner side of the top cover 4, and the slide rails of the passive slider 51 are the same as the number of the clamping members, and the connecting rod 54 is close to the clamping member. One end is provided with a connecting branch rod with the same number as the clamping member, and the connecting branch rods are respectively connected to the slide rails of the passive slider 51.

[0025] In the present embodiment, a pre-filter for convenient removal of the filter element is in the initial state, the filter element 2 is fixed on the filter element base 12, the guide rail column 55 is placed in the relatively low transverse limiting groove 43 on the telescopic groove, and the active slider 52 is at the lowest between the two groups of passive sliders 51. At this time, the distance between the two groups of passive sliders 51 is the maximum; when the filter element 2 needs to be replaced, the auxiliary operating member 56 is rotated and pulled out upward, so that the guide rail column 55 on the connecting rod 54 enters the telescopic groove from the relatively low transverse limiting groove 43 and moves upward, driving the active slider 52 to move upward between the two groups of passive sliders 51, and the distance between the two groups of passive sliders 51 gradually decreases. The two clips 53 clamp the connecting ring 21 inwardly relative to each other, and the auxiliary operating member 56 is rotated again to make the guide rail column 55 on the connecting rod 54 enter the telescopic groove from the relatively low transverse limiting groove 43 and move upward, thereby driving the active slider 52 to move upward between the two groups of passive sliders 51. The distance between the two groups of passive sliders 51 gradually decreases, and the two clips 53 clamp the connecting ring 21 inwardly relative to each other. The rail column 55 is placed in the transverse limit groove 43 at the relatively high end of the telescopic groove, and the clamping member will continue to fix and clamp the filter element 2. At the same time, the screws fixing the top cover 4 and the mounting seat 3 are removed to separate the top cover 4 from the mounting seat 3. By rotating the top cover 4, the filter element 2 fixed by the clamping member can be removed from the threaded structure of the filter element base 12, thereby completing the separate removal of the filter element 2; by rotating and pushing the auxiliary operating member 56 downward again, the guide rail column 55 on the connecting rod 54 can be made to enter the telescopic groove from the relatively high transverse limit groove 43 and move downward, thereby driving the active slider 52 to move downward between the two groups of passive sliders 51, and the spacing between the two groups of passive sliders 51 is increased again. The two clips 53 relatively loosen the connecting ring 21 outward, and the filter element 2 is lowered to complete the replacement of the filter element 2.

[0026] In this embodiment, the above is only an example and is not intended to limit the scope of protection of this application.

[0027] The filter element of the present invention is convenient for disassembling a pre-filter, comprising a filter cartridge and a mounting seat connected together, and a filter element arranged in the filter cartridge; a filter element base for accommodating the filter element is arranged in the filter cavity of the filter cartridge, and a filter element disassembly member for separately disassembling the filter element is arranged on the mounting seat with a water inlet and a water outlet respectively at two ends; the filter element disassembly member comprises a top cover detachably fixed to the mounting seat and a clamping assembly arranged on the top cover, the clamping assembly comprises a clamping member arranged on the inner side of the top cover and a connecting rod arranged on the top cover which can be longitudinally movable, one end of the connecting rod is connected to the clamping member, and the other end passes through and extends to the outer side of the top cover; the clamping member can be controlled by the connecting rod to clamp and fix the filter element, and the filter element can be removed from the filter element base by cooperating with the rotation of the top cover, and finally, the top cover only needs to be removed from the mounting seat to complete the quick disassembly and replacement of the filter element separately, thereby eliminating the need for overall disassembly of the pre-filter, saving manpower and time, and improving the efficiency of filter element removal and replacement.

[0028] The embodiments disclosed above are only for the purpose of describing and introducing the present invention in detail, and cannot be used to limit the scope of the present invention. Therefore, simple improvements and changes made according to the scope of application of the claims of the present invention still fall within the scope of protection of the present invention.

[0029] The protection scope of the present invention shall be based on the limited scope. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pre-filter with a conveniently removable filter element, comprising a filter element, a filter cartridge and a mounting seat, characterized in that: The top of the filter cartridge is open, and the interior is a hollow filter cavity, a filter element base is arranged in the filter cavity, and the filter element is placed on the filter element base; the mounting seat is arranged on the top of the filter cartridge, and a water inlet and a water outlet are arranged at both ends thereof, and a filter element disassembly part is arranged at the center; The filter element removal part includes a top cover and a clamping assembly, the top cover is detachably fixed on the mounting seat, the clamping assembly includes a clamping part and a connecting rod, the clamping part is arranged on the inner side of the top cover, the connecting rod is longitudinally movably arranged on the top cover, one end of the connecting rod is connected to the clamping part, and the other end passes through and extends to the outside of the top cover, which can be used to control the clamping part to complete the clamping, fixing and removal of the filter element.

2. A pre-filter with easily removable filter element according to claim 1, characterized in that: The clamping member includes an active slider, two groups of passive sliders and two clips, the clips are symmetrically arranged below the passive slider, and the active slider can be slid up and down and is arranged between the two groups of passive sliders; one end of the connecting rod is fixed on the active slider, a guide column is arranged on the surface of the middle section, and an auxiliary operating member is arranged at the end away from the active slider.

3. The pre-filter with easily removable filter element according to claim 1, characterized in that: The top cover is provided with a connecting hole; the inner surface of the connecting hole is provided with a longitudinal telescopic groove, and both ends of the telescopic groove are provided with transverse limiting grooves.

4. The pre-filter with easily removable filter element according to claim 1, characterized in that: The filter element comprises a connecting ring, a main filter screen and a connecting seat. The connecting ring and the connecting seat are respectively fixed at two ends of the main filter screen. Corresponding threaded structures are also arranged on the connecting seat and the filter element base for placing and fixing the filter element.

5. The pre-filter with easily removable filter element according to claim 1, characterized in that: The top cover and the mounting seat are provided with corresponding screw holes for connecting and fixing the filter element removal part and the mounting seat.

6. The pre-filter with easily removable filter element according to claim 1, characterized in that: A water stop ring is provided at the connection between the top cover and the top end of the filter cartridge.

7. The pre-filter with easily removable filter element according to claim 1, characterized in that: The water inlet is provided with a water inlet ball valve.

8. The pre-filter with easily removable filter element according to claim 1, characterized in that: The water inlet and the water outlet are both provided with sealing gaskets.

9. The pre-filter with easily removable filter element according to claim 1, characterized in that: The filter cartridge is provided with a pressure gauge, and the pressure gauge is used to detect the water pressure in the filter cavity.

10. The pre-filter with easily removable filter element according to claim 1, characterized in that: The filter cartridge is provided with a transparent viewing window.

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