CN215654183U - Y-shaped filter - Google Patents

Abstract

The utility model relates to the technical field of pipeline filtration, in particular to a Y-shaped filter, which comprises a filter main body provided with a hollow cavity, a filter screen capable of rotating 360 degrees relative to the filter main body under the action of water pressure, a first sealing element and a filter cover, wherein the filter main body is respectively provided with a water inlet, a cleaning port and a water outlet, the filter screen is inserted into the filter main body from the cleaning port and is movably connected with the filter main body, an annular first groove is formed in the circumferential direction of the filter main body close to the end part of the cleaning port, the first sealing element is installed in the first groove, the filter cover is abutted against the first sealing element and is detachably connected with the filter main body, and water can flow out of the water outlet after flowing through the filter screen along the water inlet. The Y-shaped filter provided by the utility model is simple to assemble, good in sealing effect, high in filtering effect and not easy to block.

Description

Y-shaped filter

Technical Field

The utility model relates to the technical field of pipeline filtration, in particular to a Y-shaped filter.

Background

The Y-type filter is an indispensable device on a pipeline for conveying media, is usually arranged at the inlet end of a pressure reducing valve, a pressure relief valve or other equipment and is used for eliminating impurities in the media so as to protect the normal use of the valve and the equipment; the working principle of the device is that when fluid flows through the filter, impurities are blocked by the internal filter screen, and the filtered fluid is discharged from the water outlet, so that the purpose of purification is achieved. The Y-shaped filter has great effect in pipeline transportation, so that the demand of the Y-shaped filter on the market is increasing day by day, and the problems of the existing products are highlighted day by day. The existing Y-type filter in the market generally has the problems of complex structure, more assembly parts and low production efficiency; meanwhile, due to the fact that the structure is complex, the torsion force of the end face sealing threads is large, the requirement for assembly is very high, the problem of water leakage is caused due to the fact that the end face sealing threads are not installed in place easily during dismounting and cleaning.

Chinese patent CN210302644U discloses a Y-type filter, which can turn over the filter screen by rotating the rotating ring, so that the blocked filter holes are far away from the water outlet pipe, and the unblocked filter holes on the filter screen are opposite to the water outlet pipe, thereby achieving the purpose of cleaning the filter screen, and further increasing the impurity removing period of the Y-type filter. But because the adjustable device is designed to fix the filtering surface, the filtering area of the filtering net is limited and reduced, the filtering effect is poorer, the blocking probability is higher, and frequent adjustment is difficult to realize in use, therefore, the practicability is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the Y-shaped filter which is simple to assemble, good in sealing effect, high in filtering effect and not easy to block.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a Y type filter, including the filter main part that is equipped with the cavity, can for under the water pressure filter screen, first sealing member, the filtration lid that carries out 360 rotations are carried out to the filter main part be equipped with water inlet, washing mouth, delivery port respectively in the filter main part, the filter screen follow the washing mouth insert in the filter main part and with filter main part swing joint the filter main part is close to be equipped with annular first recess in the circumference of washing mouth tip, first sealing member install in first recess, filter the lid with first sealing member butt and with the filter main part can dismantle the connection, water can follow the water inlet flow through follow behind the filter screen the delivery port flows.

The filter body is used for supporting the filter screen and is communicated with the pipe fitting, so that water can flow into the filter body from the water inlet and then flow through the filter screen for filtering, and then flows out from the water outlet, and the effects of filtering impurities and purifying water quality are achieved; the filter screen plays a role in filtering, and the filter screen is movably connected with the filter main body, so that the filter screen can rotate 360 degrees relative to the filter main body under the action of water pressure, on one hand, impurities can be blocked by the filter screen easily under the centrifugal action, and the whole Y-shaped filter has a better filtering effect, and on the other hand, the filter screen is prevented from being blocked by impurities due to the fact that the filter screen only utilizes one side for filtering for a long time; the arrangement of the cleaning opening can facilitate the installation of the filter screen, and the filter screen can be taken out from the cleaning opening when needing to be replaced or cleaned, so that the cleaning device is very convenient and fast; the first sealing element is used for sealing the cleaning opening side of the filter main body and preventing water leakage; the first sealing element is arranged in the annular first groove and is in interference fit with the filter main body to form radial sealing, and compared with other structures adopting end face sealing, the first sealing element for radial sealing needs smaller force during installation, has lower requirements on assembly and is not easy to leak water under the high-pressure condition; the filter cover is used for covering the cleaning opening to prevent water from flowing out of the cleaning opening under the condition of normal filtration.

Compared with the commonly used conventional Y-type filter, the Y-type filter formed by the filter main body, the filter screen, the first sealing element and the filter cover cancels the filter cover and the decorative cover, has fewer parts and less processing difficulty, can effectively improve the production efficiency and the assembly efficiency, saves the labor cost, cancels the glue connection of the decorative cover and is more environment-friendly; the end face sealing is changed into radial sealing, so that the mounting difficulty is reduced, the problem that the product is easy to leak water under high pressure is solved, and the risk of water leakage caused by mounting errors after the filter screen is mounted is also solved; the production efficiency, the qualification rate and the hydraulic performance of the product can be effectively improved. The filter screen capable of automatically rotating under the water pressure can reduce the blockage caused by long-term fixation of the filter screen.

Preferably, the filter body comprises a water inlet pipe, a filter pipe and a water outlet pipe which are sequentially arranged along the water flow direction and are communicated with each other, the water inlet is arranged at the end part of the water inlet pipe, the cleaning port is arranged at the end part of the filter pipe, and the water outlet is arranged at the end part of the water outlet pipe; the filter screen install in the filter tube, first recess is established filter screen tip the filter tube with the tip that oral siphon connects is equipped with and is used for right the filter screen carries out spacing first step filter lid inside be equipped with right the filter screen carries out spacing second step, the filter screen both ends install respectively in first step with on the second step, just the filter screen with first step with the equal clearance fit of second step.

Preferably, the filter screen is cylinder type the filter screen both ends be equipped with respectively with first step complex first boss, with second step complex second boss.

Preferably, a gap is reserved between the outer wall of the filter screen and the inner wall of the filter pipe, and the gap is at least 1 mm.

Preferably, a plurality of filtering holes are uniformly distributed in the circumferential direction of the filter screen, and the aperture of each filtering hole is 3-8 mm.

Preferably, a first connecting piece is detachably connected to the end of the water inlet pipe, and a second sealing piece for preventing water leakage is further installed between the water inlet pipe and the first connecting piece; the water outlet pipe is characterized in that a second connecting piece is detachably connected to the end of the water outlet pipe, and a third sealing piece for preventing water leakage is further installed between the water outlet pipe and the second connecting piece.

Preferably, an annular second groove for mounting the second sealing element is formed in the circumferential direction of the end portion of the first connecting piece, and an annular third groove for mounting the third sealing element is formed in the circumferential direction of the end portion of the second connecting piece.

Preferably, the water inlet pipe comprises a first connecting piece and a second connecting piece, wherein the first connecting piece is sleeved in the first nut, then inserted into the water inlet pipe and abutted against the water inlet pipe, and the first nut is in threaded connection with the water inlet pipe; the second connecting piece is sleeved in the second screw cap and then inserted into the water outlet pipe and abutted against the water outlet pipe, and the second screw cap is in threaded connection with the water outlet pipe.

Preferably, the first screw cap, the second screw cap and the filter cover are all provided with anti-skid ribs or anti-skid grains.

Preferably, the first connecting piece and the second connecting piece are identical in structure and size, and the first nut and the second nut are identical in structure and size.

Compared with the prior art, the utility model has the beneficial effects that:

(1) compared with the traditional Y-shaped filter, the Y-shaped filter has the advantages that the filter cover and the decorative cover are omitted, the number of parts is less, the processing difficulty is reduced, the production efficiency and the assembly efficiency can be effectively improved, the labor cost is saved, meanwhile, the glue connection of the decorative cover is omitted, and the Y-shaped filter is more environment-friendly;

(2) the first sealing element and the filter pipe, the second sealing element and the first connecting piece and the third sealing element and the second connecting piece are in interference fit, so that radial sealing is realized, the traditional end face sealing is replaced, the phenomenon of water leakage caused by the displacement of the sealing elements due to high pressure can be reduced, and the sealing reliability is further improved;

(3) the filter pipe is used for roughly positioning the filter screen and then is in clearance fit, so that the filter screen can rotate 360 degrees relative to the axis of the filter screen under the driving of water pressure, the filtering effect is improved by utilizing centrifugal force, and the blockage caused by impurity precipitation and accumulation due to long-term fixation of the filter screen can be reduced;

(4) a certain gap is left between the inner wall of the filter pipe and the outer wall of the filter screen, so that water can flow out from all directions of the filter screen after being filtered, the water outlet surface is enlarged, and the problem of reduced water outlet flow caused by local blockage is solved;

(5) can dismantle the oral siphon and the first connecting piece of connection, outlet pipe and second connecting piece make the filter main part can install on different pipelines, are applicable to different overall arrangement pipeline installation, and application scope is wider.

Drawings

FIG. 1 is a schematic view of a Y-strainer according to the present invention;

FIG. 2 is a schematic view of the construction of the filter body;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

FIG. 4 is an enlarged view of a portion B of FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 1 at C;

FIG. 6 is a schematic structural view of a filter screen;

FIG. 7 is a schematic structural view of a first connecting member;

fig. 8 is a schematic structural view of the second connector.

The graphic symbols are illustrated as follows:

1. a filter body; 11. a water inlet pipe; 111. a water inlet; 12. a filter tube; 121. cleaning the opening; 122. a first groove; 123. a first step; 13. a water outlet pipe; 131. a water outlet; 2. a filter screen; 21. a first boss; 22. a second boss; 23. a filtration pore; 3. a first seal member; 4. a filter cover; 5. a first connecting member; 51. a second groove; 6. a second connecting member; 61. a third groove; 71. a second seal member; 72. a third seal member; 81. a first nut; 82. a second nut; 9. and a third boss.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Example 1

Fig. 1 to 8 show a first embodiment of a Y-type filter according to the present invention, which includes a filter body 1 having a hollow cavity, a filter net 2 rotatable 360 ° relative to the filter body 1 under water pressure, a first sealing member 3, and a filter cover 4, wherein the filter body 1 is provided with a water inlet 111, a cleaning opening 121, and a water outlet 131, the filter net 2 is inserted into the filter body 1 from the cleaning opening 121 and movably connected to the filter body 1, an annular first groove 122 is formed in a circumferential direction of the filter body 1 near an end of the cleaning opening 121, the first sealing member 3 is installed in the first groove 122, the filter cover 4 is in clearance fit with the first sealing member 3 and detachably connected to the filter body 1, and water can flow out from the water outlet 131 after passing through the filter net 2 along the water inlet 111.

As an embodiment of the present invention, the filter body 1 includes a water inlet pipe 11, a filter pipe 12, and a water outlet pipe 13, which are sequentially disposed along a water flow direction and are all communicated, the water inlet 111 is disposed at an end of the water inlet pipe 11, the cleaning port 121 is disposed at an end of the filter pipe 12, and the water outlet 131 is disposed at an end of the water outlet pipe 13; filter screen 2 installs in filter pipe 12, and first recess 122 is established at filter screen 2 tip, is equipped with at filter pipe 12 and the tip that intake pipe 11 is connected to be used for carrying out spacing first step 123 to filter screen 2, is equipped with inside the second step that carries out spacing to filter screen 2 of crossing filter cover 4, and install respectively on first step 123 and second step at filter screen 2 both ends, and filter screen 2 and the equal clearance fit of first step 123 and second step.

The water inlet pipe 11 is used for water inlet, the filter pipe 12 is used for installing the filter screen 2, the water outlet pipe 13 is used for water outlet, and water flows into the filter body 1 from the water inlet pipe 11 and then flows out from the water outlet pipe 13 after passing through the filter screen 2 in the filter pipe 12. First step 123 and second step all are used for spacing filter screen 2, and filter screen 2 all makes filter screen 2 carry out 360 rotations along self axis under the water pressure drives from circumference and footpath all with first step 123, second step clearance fit.

In one embodiment of the present invention, the filter screen 2 is cylindrical, and a first boss 21 and a second boss 22 are respectively disposed at both ends of the filter screen 2 to be engaged with the first step 123 and the second step.

The first boss 21 is inserted into the first step 123 to abut against the first step 123, and the second boss 22 is inserted into the second step to abut against the second step, so that the filter screen 2 can be mainly positioned in the filter pipe 12, but the rotation of the filter screen 2 relative to the filter pipe 12 is not influenced; the cylindrical filter screen 2 is convenient to rotate by 360 degrees; the first step 123 and the first boss 21 are provided with matching allowance in the radial direction and the second step and the second boss 22 are provided with matching allowance in the radial direction, when the water filter screen 2 is used, the water filter screen can rotate 360 degrees under the driving of water flow pressure, water flows in from the water inlet 111 through the inner diameter of the water filter screen 2 and flows out along the inner wall of the water filter screen 2 after entering through the water inlet 111 and being filtered on the water filter screen 2.

As an embodiment of the utility model, a gap is reserved between the outer wall of the filter screen 2 and the inner wall of the filter pipe 12, and the gap is at least 1 mm.

In the prior art, the outer wall of the filter screen 2 is attached to the inner wall of the filter pipe 12, so that the water outlet surface is reduced, and the flow is greatly reduced when the local blockage occurs; in the utility model, a certain gap is left between the outer wall of the filter screen 2 and the inner wall of the filter pipe 12, so that water flow can enter through the inner diameter of the filter screen 2, 360-degree filtration is realized, and then the water is discharged along all directions of the inner wall of the filter screen 2, the problems that the outer wall of the filter screen 2 is only partially attached to the filter pipe 12 and the water yield is low are avoided, and the service life of the filter screen 2 can be effectively prolonged; preferably, the clearance between the outer wall of the filter screen 2 and the inner wall of the filter pipe 12 is 2mm, so that the water outlet space between the filter screen 2 and the filter pipe 12 can be further improved, and the filtered water is convenient to discharge.

As an embodiment of the utility model, a plurality of filtering holes 23 are uniformly distributed on the filter screen 2, and the aperture of the filtering holes 23 is 3 mm-8 mm.

The filtering holes 23 are used for discharging filtered water, and preferably, a plurality of filtering holes 23 are uniformly distributed in the circumferential direction of the filter screen 2 at 360 degrees, so that the filter screen 2 can filter water in all directions, the blockage of the filter screen 2 is reduced, the stress of the filter screen 2 is more balanced when the filter screen 2 rotates under the push of water flow, and the filter screen 2 is easier to rotate; the filtering holes 23 are too large in diameter, which is not beneficial to filtering impurities and makes water not be purified well; the aperture of the filter screen 2 is too small, which makes the filter screen 2 easy to block, therefore, the aperture of the filter hole 23 is preferably 6mm, which not only can satisfy better filtering effect, but also can reduce the blocking of the filter screen 2.

As an embodiment of the present invention, a first connector 5 is detachably connected to an end of the water inlet pipe 11, and a second sealing member 71 for preventing water leakage is further installed between the water inlet pipe 11 and the first connector 5; the end of the water outlet pipe 13 is detachably connected with the second connecting piece 6, and a third sealing piece 72 for preventing water leakage is also arranged between the water outlet pipe 13 and the second connecting piece 6.

The first connecting piece 5 and the second connecting piece 6 are external pipes, and are respectively connected with the first connecting piece 5 and the second connecting piece 6 through a water inlet pipe 11 and a water outlet pipe 13 so as to connect the filter body 1, so that the water is filtered and purified; can dismantle the oral siphon 11 and the first connecting piece 5 of connection, outlet pipe 13 and second connecting piece 6, the oral siphon 11 of being convenient for and outlet pipe 13 end loose joint different tubular product, pipe fitting, applicable in different overall arrangement piping erection, application scope is wider. The second sealing member 71 is used for sealing between the water inlet pipe 11 and the first connector 5, and the third sealing member 72 is used for sealing between the water outlet pipe 13 and the second connector 6, so as to prevent water leakage after the filter body 1 is communicated with the pipe fitting.

In one embodiment of the utility model, an annular second groove 51 for receiving a second seal 71 is provided in the circumferential direction at the end of the first connecting part 5, and an annular third groove 61 for receiving a third seal 72 is provided in the circumferential direction at the end of the second connecting part 6.

The second groove 51 is used for installing a second sealing element 71, and the second sealing element 71 is sleeved in the second groove 51 from the outside of the first connecting piece 5 to realize interference fit with the first connecting piece 5 so as to form radial sealing; the third groove 61 is used for installing a third sealing element 72, and the third sealing element 72 is sleeved in the third groove 61 from the outside of the second connecting piece 6 to realize interference fit with the second connecting piece 6 so as to form radial sealing. The radial sealing effect of the radial sealing is similar to that of the radial sealing in the foregoing, on one hand, the first connecting piece 5 and the water inlet pipe 11 and the second connecting piece 6 and the water outlet pipe 13 can be more easily installed, and on the other hand, the radial sealing has a better sealing and water leakage preventing effect and is not easy to fall off under the high-pressure condition. The first seal 3, the second seal 71, and the third seal 72 may be O-ring rubber seals.

As an embodiment of the present invention, the present invention further includes a first nut 81 and a second nut 82, the first connector 5 is inserted into the water inlet pipe 11 after being inserted into the first nut 81 and abuts against the water inlet pipe 11, and the first nut 81 is in threaded connection with the water inlet pipe 11; the second connecting piece 6 is sleeved in the second screw cap 82 and then inserted into the water outlet pipe 13 and is abutted against the water outlet pipe 13, and the second screw cap 82 is in threaded connection with the water outlet pipe 13.

The first screw cap 81 is connected with the first connecting piece 5 and the water inlet pipe 11 from the outer sides of the first connecting piece 5 and the water inlet pipe 11, so that the first connecting piece 5 is fixed, and the first connecting piece 5 and the water inlet pipe 11 can be attached tightly; if the tight fit is realized by the direct acting force between the first connecting piece 5 and the water inlet pipe 11, the phenomenon that a gap is formed between the first connecting piece 5 and the water inlet pipe due to the impact of water pressure and water leakage is easy to occur; the first nut 81 is utilized to tightly fit the first connecting piece 5 and the water inlet pipe 11 integrally, so that the phenomenon can be avoided, and the acting force is not on the water flow impact surface, so that the water inlet pipe is safer and more reliable. The same holds true for the engagement between the second nut 82 and the second connector 6 and the outlet pipe 13.

In one embodiment of the present invention, anti-slip ribs or anti-slip lines are disposed on the first nut 81, the second nut 82, and the filter cover 4.

Antiskid muscle or anti-skidding line all play anti-skidding effect, between first nut 81 and oral siphon 11, between second nut 82 and outlet pipe 13, are threaded connection between filter lid 4 and the filter tube 12, set up antiskid muscle or anti-skidding line in the outside of first nut 81, second nut 82, filter lid 4 and be convenient for screw up the part. Of course, the first nut 81 and the inlet pipe 11, the second nut 82 and the outlet pipe 13, and the filter cover 4 and the filter pipe 12 may be detachably connected by other methods.

In one embodiment of the present invention, at least two third bosses 9 are further provided on the bottom of the filter body 1.

The third boss 9 is used for injecting and feeding glue, can be matched with an in-mold cutting technology to realize automatic production of products, saves labor cost and improves production efficiency.

Example 2

The present invention also provides a second embodiment of a Y-strainer, which is similar to embodiment 1 except that the first connector 5 and the second connector 6 have the same structure and dimensions, and the first nut 81 and the second nut 82 have the same structure and dimensions. In this embodiment, the two ends of the filter body 1 are connected to pipe members with the same pipe diameter, and at this time, the first nut 81 and the second nut 82 have the same structure and size, so as to be conveniently connected to the first connecting member 5 and the second connecting member 6. In this case, the structure of the whole Y-shaped filter is simpler and the processing is simpler.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The Y-shaped filter is characterized by comprising a filter body (1) provided with a hollow cavity, a filter screen (2) capable of rotating 360 degrees relative to the filter body (1) under water pressure, a first sealing element (3) and a filter cover (4), wherein the filter body (1) is respectively provided with a water inlet (111), a cleaning port (121) and a water outlet (131), the filter screen (2) is inserted into the filter body (1) from the cleaning port (121) and is movably connected with the filter body (1), an annular first groove (122) is formed in the circumferential direction of the end part, close to the cleaning port (121), of the filter body (1), the first sealing element (3) is installed in the first groove (122), and the filter cover (4) is abutted against the first sealing element (3) and is detachably connected with the filter body (1), water can flow out of the water outlet (131) after flowing through the filter screen (2) along the water inlet (111).

2. The Y-shaped filter according to claim 1, wherein the filter body (1) comprises a water inlet pipe (11), a filter pipe (12) and a water outlet pipe (13) which are arranged in sequence along the water flow direction and are communicated with each other, the water inlet (111) is arranged at the end of the water inlet pipe (11), the cleaning port (121) is arranged at the end of the filter pipe (12), and the water outlet (131) is arranged at the end of the water outlet pipe (13); filter screen (2) install in filter tube (12), establish first recess (122) filter screen (2) tip filter tube (12) with the tip that oral siphon (11) are connected is equipped with and is used for right filter screen (2) carry out spacing first step (123) filter lid (4) inside be equipped with right filter screen (2) carry out spacing second step, filter screen (2) both ends install respectively in first step (123) with on the second step, just filter screen (2) with first step (123) with the equal clearance fit of second step.

3. The Y-shaped filter according to claim 2, wherein the filter screen (2) is cylindrical, and a first boss (21) and a second boss (22) are respectively arranged at two ends of the filter screen (2) and are matched with the first step (123) and the second step (123).

4. A Y-filter according to claim 3, characterized in that a gap is left between the outer wall of the filter sieve (2) and the inner wall of the filter tube (12), said gap being at least 1 mm.

5. The Y-shaped filter according to any one of claims 1 to 4, characterized in that a plurality of filter holes (23) are uniformly distributed on the circumference of the filter screen (2), and the aperture of each filter hole (23) is 3-8 mm.

6. The Y-shaped filter according to claim 5, characterized in that a first connector (5) is detachably connected to the end of the water inlet pipe (11), and a second sealing member (71) for preventing water leakage is further installed between the water inlet pipe (11) and the first connector (5); a second connecting piece (6) is detachably connected to the end part of the water outlet pipe (13), and a third sealing piece (72) for preventing water leakage is further installed between the water outlet pipe (13) and the second connecting piece (6).

7. Y-filter according to claim 6, characterised in that a second annular groove (51) is provided in the circumferential direction at the end of the first connector (5) for the mounting of the second sealing element (71), and a third annular groove (61) is provided in the circumferential direction at the end of the second connector (6) for the mounting of the third sealing element (72).

8. The Y-shaped filter according to claim 7, further comprising a first nut (81) and a second nut (82), wherein the first connector (5) is inserted into the water inlet pipe (11) and abutted against the water inlet pipe (11) after being sleeved in the first nut (81), and the first nut (81) is in threaded connection with the water inlet pipe (11); the second connecting piece (6) is sleeved in the second screw cap (82) and then inserted into the water outlet pipe (13) and is abutted against the water outlet pipe (13), and the second screw cap (82) is in threaded connection with the water outlet pipe (13).

9. The Y-shaped filter according to claim 8, wherein anti-slip ribs or lines are arranged outside the first screw cap (81), the second screw cap (82) and the filter cover (4).

10. Y-filter according to claim 9, characterized in that said first connector (5) and said second connector (6) are of the same construction and dimensions, and in that said first nut (81) and said second nut (82) are of the same construction and dimensions.

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