Pre-filter capable of being transversely mounted

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By designing a cross-mountable pre-filter and adopting a combined structure of large and small holes, the problem of high water flow and high water pressure in the prior art cannot be met at the same time in filtration and backflushing, achieving high efficiency The filtering and backflushing effect improves the filtration accuracy and service life.

CN222445612UActive Publication Date: 2025-02-11ZHEJIANG BEIHUANG ENVIRONMENTAL PROTECTION TECH CO LTD

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Patent Information

Application Number: CN202323336031.8
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2023-12-06
Publication Date: 2025-02-11
Estimated Expiration: 2033-12-06

AI Technical Summary

Technical Problem

The existing stacked filters cannot meet the high water flow during filtration and the high water pressure during backflushing, resulting in the filtration accuracy not meeting the standards and the service life is short.

Method used

A cross-mounted pre-filter is designed, using large-hole filtering water through holes and small-hole backflushing water jets. Through the movement of the spring mechanism and the grille frame, the switching between filtration and backflushing is achieved to ensure the water flow. There are high flow velocity and high pressure strength respectively during filtration and backflushing.

Benefits of technology

It achieves meeting the needs of filtration and backflushing without increasing cost and complexity, improves filtration accuracy and service life, and brings a better experience to consumers.

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Abstract

The utility model discloses a prefilter capable of being transversely installed, which comprises a water inlet piece with a water inlet, a filter bottle connected with the water inlet piece and a machine head connected with the filter bottle, the machine head is provided with a water outlet and a drain outlet, a lamination framework and laminations are arranged in the filter bottle, the laminations are arranged on the outer side of the lamination framework, the lamination framework is provided with filter water through holes, and the filter water through holes are communicated with the filter bottle. A grating framework is arranged on the inner side of the lamination framework, a guide hole and a backwashing water through hole are formed in the grating framework, a spring mechanism is arranged on the outer side of the grating framework, and the spring mechanism can telescopically move the grating framework to align or stagger the filtering water through hole and the guide hole and close or open the backwashing water through hole. According to the utility model, an extremely good backwashing effect can be formed, the requirement of a user can be met by ultra-large flux, and the effects that water flows in from outside to inside during filtering, has a higher flow speed and can be quickly filtered, and water flows out from inside to outside during backwashing pollution discharge, has higher pressure and can wash particle impurities attached to the lamination can be realized.

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Description

Technical Field

[0001] The utility model relates to the technical field of household water purification equipment, in particular to a pre-filter which can be installed horizontally. Background Art

[0002] When filtering in the existing laminated filter, water flows from the outside to the inside, and the laminate intercepts floating objects, rust, silt and other granular debris in the water; when backwashing, water flows out from the inside to the outside, washing away floating objects, rust, silt and other granular debris attached to the laminate. In order to meet the user's daily water needs, it is necessary to ensure that the laminated filter has a high water flow rate during filtration, and in order to have a high water pressure to wash the laminate during backwashing, the filter needs small holes to increase the backwashing pressure. The existing laminated filter cannot meet the needs of both filtration and backwashing at the same time, and can only use a large number of small holes to achieve a balance between the two. The developer has also considered using large holes, but because there are large holes on the side of the skeleton, the water flow from the inside to the outside is relatively dispersed, and it is impossible to form a high-pressure water flow to impact the granular debris on the laminate. The gap between the laminates becomes larger after long-term accumulation, so that the filtration accuracy does not reach the expected effect, affecting the service life of the filter and bringing a bad experience to consumers. At present, developers in the market are also considering improving the efficiency of backwashing and sewage discharge through other pressurization methods. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned technical problems and provide a pre-filter that can be installed horizontally. The utility model can form an excellent backwashing effect, and can also achieve an ultra-large flux to meet the needs of users, bringing consumers a very good experience, and achieving the effects of having a high flow rate when the water flows in from the outside to the inside during filtration, so as to quickly filter, and having a high pressure when the water flows out from the inside to the outside during backwashing and sewage discharge, so as to wash away the particulate debris attached to the laminated sheets.

[0004] The technical solution adopted by the utility model to solve the above technical problems is: a pre-filter that can be installed horizontally, including a water inlet with a water inlet, a filter bottle connected to the water inlet, a machine head connected to the filter bottle, a water outlet and a sewage outlet are arranged on the machine head, a laminate frame and laminates are arranged on the outside of the laminate frame, the laminate frame is provided with a filter water hole, a grille frame is arranged on the inside of the laminate frame, the grille frame is provided with a guide hole and a backwash water hole, a spring mechanism is arranged on the outside of the grille frame, and the spring mechanism can retractably move the grille frame to align or stagger the filter water hole with the guide hole and close or open the backwash water hole. The filter water hole is a large hole, and the backwash water spray hole is a small hole. The large hole means that the flux that can be supplied to the water flow is large, and one or more large holes can meet the normal water flow requirements of the user; the small hole means that the flux that can be supplied to the water flow is small, and the same water flow will produce a large flow rate due to flowing out of the small hole, so that the effect of washing the laminate with a higher pressure can be achieved. In the utility model, alignment means that water can be connected to meet the daily water demand of users, and staggered means that the filtering water holes are blocked and cannot pass water, or the two are staggered to form backwashing water spray holes for backwashing.

[0005] Preferably, the spring mechanism includes a backwash switching member connected to the grille frame and a spring, the backwash switching member is provided with a first tube body and a first through hole arranged outside the first tube body, the grille frame is inserted into the water outlet after passing through the first tube body, and the spring is arranged outside the first tube body. In the filtering state, water flows into the filter bottle from the water inlet, enters the laminate frame and the grille frame after being filtered by the laminate, and the water flows out from the grille frame to the water outlet; in the sewage discharge state, the sewage discharge port is opened, and since the sewage discharge port is opened, a pressure difference is formed between the side of the backwash switching member close to the sewage discharge port and the side close to the filter bottle, and the water flow pressure pushes the backwash switching member to move toward the sewage discharge port, and the movement of the backwash switching member drives the movement of the grille frame, and the movement of the grille frame exposes the backwash water through hole, and the water flows into the grille frame from the backwash water through hole and flows out to clean the laminate.

[0006] As a preferred embodiment, a water flow distribution member is further included, on which a blocking cover is provided, and the backwash water hole can be moved to be opened or closed by the blocking cover. In the filtering state, the blocking cover blocks the backwash water hole, and water cannot enter the backwash water hole; in the sewage discharge state, due to the movement of the grille frame, the backwash water hole moves to the right and is opened, and water enters the backwash water hole.

[0007] Preferably, a backwash channel switching member is provided downstream of the water flow distribution member, and the backwash channel switching member includes a switching ring and a second tube body, a second through hole is provided between the switching ring and the second tube body, the grille frame passes through the second tube body and is inserted into the blocking cover, and a frame seat is provided on the grille frame, and the frame seat can move to open or close the second through hole. In the filtering state, water flows from the water inlet into the filter bottle through the second through hole; in the sewage discharge state, since the grille frame moves downstream, the frame seat blocks the second through hole, and the backwash water hole is opened at the same time, at this time, the water can only enter the grille frame and the laminate frame from the backwash water hole, enter the filter bottle after flushing the laminate outward, and flow out from the sewage discharge port after passing through the first through hole.

[0008] Preferably, the water flow distribution component includes a claw portion which is arranged upstream of the backwash flow channel switching component and fixes the backwash flow channel switching component, and the claw portion is connected to the blocking cover.

[0009] Preferably, the lamination frame is provided with a backwashing water spray hole, and the grille frame is provided with an opening, and the backwashing water spray hole is connected with the opening. In the filtering state, water flows from the backwashing water spray hole through the opening to the grille frame to provide water flow; in the sewage discharge state, water flows from the opening to the backwashing water spray hole. Due to the small hole setting of the water spray hole, the smaller the area flowing through per unit time, the greater the water flow pressure, and the lamination is washed more cleanly.

[0010] Preferably, a skeleton support frame is provided on the laminated skeleton, a third tube body and a fourth tube body arranged outside the third tube body are provided on the skeleton support frame, the third tube body is threadedly connected to the skeleton seat, and a third through hole is provided between the third tube body and the fourth tube body.

[0011] Preferably, a lamination pressing piece is provided downstream of the lamination, and the lamination pressing piece comprises a lamination pressing ring and a sixth tube body. An integrally formed protrusion is provided on the sixth tube body, and the protrusion is inserted into the third through hole.

[0012] Preferably, the skeleton support frame is further provided with a fifth tube body, the fifth tube body is arranged outside the fourth tube body, and the sixth tube body is inserted into the fifth tube body.

[0013] Preferably, the sewage outlet is connected to a sewage pipe, and a sewage ball valve is arranged in the sewage pipe. Through the setting of the sewage ball valve, the user can conveniently open or close the ball valve, thereby controlling the filter to switch between the filtering state and the sewage discharge state.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model can form an excellent backwashing effect, and can also achieve a large flux to meet the needs of users, bringing consumers a very good experience, and achieving the effect of having a high flow rate when the water flows in from the outside to the inside during filtration, which can quickly filter, and having a high pressure when the water flows out from the inside to the outside during backwashing and sewage discharge, which can wash away the particles and debris attached to the laminated sheets;

[0016] 2. The utility model overcomes the technical bias in the current market to increase the backwashing pressure by other pressurization methods. While satisfying both filtration and backwashing, the utility model sets the technical route in the market right while reducing costs and simplifying technical methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural diagram of the filtering state.

[0019] Figure 3 yes Figure 2 Cross-sectional view along the AA direction.

[0020] Figure 4 It is a structural diagram of the sewage discharge state.

[0021] Figure 5 yes Figure 4 Cross-sectional view along direction BB.

[0022] Figure 6 It is a structural schematic diagram of the water flow distribution component.

[0023] Figure 7 It is a structural diagram of the grille frame.

[0024] Figure 8 It is a structural diagram of the laminated skeleton.

[0025] Fig. 9 It is a structural schematic diagram of the backwash flow channel switching component.

[0026] Fig.10 It is a structural schematic diagram of the laminated clamping member.

[0027] Fig.11 It is a structural diagram of a skeleton support frame.

[0028] Fig.12 It is a structural schematic diagram of the backwash switching component.

[0029] In the figure: 1, water inlet, 111, water inlet, 2, filter bottle, 3, head, 31, water outlet, 32, sewage outlet, 4, laminated frame, 41, filtration water hole, 42, backwashing water hole, 43, frame support frame, 431, third tube body, 432, fourth tube body, 433, third through hole, 434, fifth tube body, 5, laminated sheet, 6, grille frame, 61, guide hole, 62, backwashing water hole, 63, frame seat, 64, Opening portion, 7, spring mechanism, 71, backwash switching member, 711, first tube body, 712, first through hole, 72, spring, 8, water flow distribution member, 81, baffle, 82, claw portion, 9, backwash flow channel switching member, 91, switching ring, 92, second tube body, 93, second through hole, 10, laminated clamping member, 101, laminated clamping ring, 102, sixth tube body, 1021, raised portion, 11, drain pipe, 12, drain ball valve. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0031] like Figure 1-12 As shown, the utility model is a pre-filter that can be installed horizontally, including a water inlet 1 with a water inlet 111, a filter bottle 2 connected to the water inlet 1, a head 3 connected to the filter bottle 2, a water outlet 31 and a sewage outlet 32 are provided on the head 3, a laminate frame 4 and a laminate 5 are provided in the filter bottle 2, the laminate 5 is arranged on the outside of the laminate frame 4, a filter water hole 41 is provided on the laminate frame 4, a grille frame 6 is provided on the inside of the laminate frame 4, a guide hole 61 and a backwash water hole 62 are provided on the grille frame 6, a spring mechanism 7 is provided on the outside of the grille frame 6, and the spring mechanism 7 can telescopically move the grille frame 6 to align or stagger the filter water hole 41 with the guide hole 61 and close or open the backwash water hole 62.

[0032] The spring mechanism 7 includes a backwash switching member 71 and a spring 72 connected to the grille frame 6. The backwash switching member 71 is provided with a first tube body 711 and a first through hole 712 arranged on the outside of the first tube body 711. The grille frame 6 passes through the first tube body 711 and is inserted into the water outlet 31. The spring 72 is arranged on the outside of the first tube body 711.

[0033] The water flow distribution member 8 is also included. A blocking cover 81 is provided on the water flow distribution member 8. The backwash water through hole 62 can be movably opened or closed by the blocking cover 81.

[0034] A backwash flow channel switching component 9 is provided downstream of the water flow distribution component 8. The backwash flow channel switching component 9 includes a switching ring 91 and a second tube body 92. A second through hole 93 is provided between the switching ring 91 and the second tube body 92. The grille frame 6 passes through the second tube body 92 and is inserted into the blocking cover 81. A frame seat 63 is provided on the grille frame 6. The frame seat 63 can move to open or close the second through hole 93.

[0035] The water flow distribution member 8 includes a claw portion 82 which is arranged upstream of the backwash flow channel switching member 9 and fixes the backwash flow channel switching member 9 , and the claw portion 82 is connected to the blocking cover 81 .

[0036] The laminated frame 4 is provided with a backwashing water spray hole 42 , and the grid frame 6 is provided with an opening 64 . The backwashing water spray hole 42 is communicated with the opening 64 .

[0037] The laminated skeleton 4 is provided with a skeleton support frame 43, on which a third tube body 431 and a fourth tube body 432 arranged outside the third tube body 431 are provided. The third tube body 431 is threadedly connected to the skeleton seat 63, and a third through hole 433 is provided between the third tube body 431 and the fourth tube body 432.

[0038] A lamination pressing member 10 is provided downstream of the lamination. The lamination pressing member 10 comprises a lamination pressing ring 101 and a sixth tube body 102 . An integrally formed protrusion 1021 is provided on the sixth tube body 102 . The protrusion 1021 is inserted into the third through hole 433 .

[0039] The skeleton support frame 43 is further provided with a fifth tube body 434 . The fifth tube body 434 is arranged outside the fourth tube body 432 , and the sixth tube body 102 is inserted into the fifth tube body 434 .

[0040] The sewage outlet 32 is connected to a sewage pipe 11 , and a sewage ball valve 12 is arranged in the sewage pipe 11 .

[0041] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] It should be noted that when an element is referred to as being "fixed on" or "provided on" another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0043] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

Claims

1. A pre-filter that can be installed horizontally, characterized in that: The invention comprises a water inlet (1) provided with a water inlet (111), a filter bottle (2) connected to the water inlet (1), a machine head (3) connected to the filter bottle (2), a water outlet (31) and a sewage outlet (32) provided on the machine head (3), a laminate frame (4) and laminates (5) provided inside the filter bottle (2), the laminates (5) being provided outside the laminate frame (4), a filter water through hole (41) being provided on the laminate frame (4), a grill frame (6) being provided inside the laminate frame (4), and the grill frame (6) ) is provided with a guide hole (61) and a backwash water hole (62), a spring mechanism (7) is provided on the outside of the grille frame (6), and the spring mechanism (7) can telescopically move the grille frame (6) to align or stagger the filtering water hole (41) with the guide hole (61) and close or open the backwash water hole (62); and also includes a water flow distribution member (8), a blocking cover (81) is provided on the water flow distribution member (8), and the backwash water hole (62) is movably opened or closed by the blocking cover (81).

2. The horizontally installable pre-filter according to claim 1, characterized in that: The spring mechanism (7) comprises a backwash switching member (71) connected to the grille frame (6) and a spring (72); the backwash switching member (71) is provided with a first tube body (711) and a first through hole (712) provided outside the first tube body (711); the grille frame (6) passes through the first tube body (711) and is inserted into the water outlet (31); and the spring (72) is provided outside the first tube body (711).

3. The horizontally installable pre-filter according to claim 1, characterized in that: A backwash flow channel switching member (9) is provided downstream of the water flow distribution member (8). The backwash flow channel switching member (9) comprises a switching ring (91) and a second tube body (92). A second through hole (93) is provided between the switching ring (91) and the second tube body (92). The grille frame (6) passes through the second tube body (92) and is inserted into the blocking cover (81). A frame seat (63) is provided on the grille frame (6). The frame seat (63) can movably open or close the second through hole (93).

4. The horizontally installable pre-filter according to claim 3, characterized in that: The water flow distribution member (8) comprises a claw portion (82) which is arranged upstream of the backwash flow channel switching member (9) and fixes the backwash flow channel switching member (9), and the claw portion (82) is connected to the blocking cover (81).

5. The horizontally installable pre-filter according to claim 1, 2, 3 or 4, characterized in that: The laminated frame (4) is provided with a backwashing water spray hole (42), the grille frame (6) is provided with an opening (64), and the backwashing water spray hole (42) is in communication with the opening (64).

6. The horizontally installable pre-filter according to claim 1, 2, 3 or 4, characterized in that: A skeleton support frame (43) is provided on the laminate skeleton (4); a third tube body (431) and a fourth tube body (432) provided outside the third tube body (431) are provided on the skeleton support frame (43); the third tube body (431) is threadedly connected to the skeleton seat (63); and a third through hole (433) is provided between the third tube body (431) and the fourth tube body (432).

7. The horizontally installable pre-filter according to claim 6, characterized in that: A stack pressing piece (10) is provided downstream of the stack, the stack pressing piece (10) comprising a stack pressing ring (101) and a sixth tube body (102), the sixth tube body (102) being provided with an integrally formed protrusion (1021), the protrusion (1021) being inserted into the third through hole (433).

8. The horizontally installable pre-filter according to claim 7, characterized in that: A fifth tube body (434) is also provided on the skeleton support frame (43). The fifth tube body (434) is provided outside the fourth tube body (432), and the sixth tube body (102) is inserted into the fifth tube body (434).

9. The horizontally installable pre-filter according to claim 1 or 2 or 3 or 4 or 7 or 8, characterized in that: The sewage outlet (32) is connected to a sewage pipe (11), and a sewage ball valve (12) is provided in the sewage pipe (11).