A water tank or pool water inlet silencing device

Abstract

The present invention provides a water tank or pool water inlet silencer, belonging to the technical field of water supply equipment. A water tank or pool water inlet silencer comprises a quick connector, a screen, a spoiler and a pressure reducing orifice; the present invention connects a screen comprising a wedge-shaped screen and a reverse-rolled screen through a quick connector at the water inlet of the water tank or the pool, and at the same time, a plurality of spoilers are spirally arranged in the screen, and a pressure reducing orifice is arranged at one end of the screen away from the quick connector, so that after the incoming water enters the screen from the water inlet, the screen, the spoiler and the pressure reducing orifice can change the direction of the water flow, thereby increasing the water inlet pressure loss, so that the incoming water pressure gradually decreases, thereby reducing the impact of the incoming water on the wall and the water surface of the water tank or the pool, achieving the purpose of noise reduction, and at the same time, it can also avoid the problem of water quality deterioration caused by the way of increasing the water inlet pipe to close to the bottom to achieve noise reduction, and can better meet people's normal life needs.

Description

Technical Field

[0001] The invention relates to the technical field of water supply equipment, and in particular to a water tank or pool water inlet silencing device. Background Art

[0002] Water storage devices are widely used in production and life. Whether it is decentralized water supply or centralized water supply in residential areas, bathhouses, etc., the use of water storage devices is indispensable. Among the existing water storage devices, water tanks or pools are the main ones.

[0003] At present, in the process of using the existing water tank or pool, the water in the water tank or pool needs to be replenished in time after being used, so the water tank or pool needs to be frequently filled with water. However, during the water filling process of the water tank or pool, since the water from the supply end has a high pressure, when the water enters the water tank or pool, noise of water flow hitting the side wall and water flow hitting the water surface will be generated, and the higher the water inlet pressure, the greater the noise. Therefore, the noise generated by the water tank or pool built near the residential area when the water is filled will seriously interfere with the daily activities of the residents and affect the lives of the residents. Although people can reduce the noise by lengthening the water inlet pipe and deepening it to a position close to the bottom of the water tank or pool so that the water inlet is immersed below the liquid surface, it will cause the water inlet to be too close to the bottom of the water tank or pool, which is very easy to cause the bottom dirt to rise when the water is filled, causing the problem of turbid water quality, affecting the quality of the water. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention aims to provide a water tank or pool water inlet silencing device, which is installed on the water inlet of the water tank or pool, and changes the direction of the inlet water flow through its internal spoiler, screen, pressure reducing orifice plate and other structures, and increases the inlet pressure loss, thereby reducing the impact of the incoming water head on the wall and water surface of the water tank or pool, thereby achieving the purpose of noise reduction, and at the same time avoiding the problem of water quality deterioration caused by the incoming water being too close to the bottom of the water tank or pool, and better meeting people's living needs.

[0005] The specific technical solutions are as follows:

[0006] A water tank or pool water inlet silencing device, installed on the water inlet of the water tank or pool, has the following characteristics, including:

[0007] Quick connector, one end of which is connected to the water inlet of the water tank or pool;

[0008] The screen is arranged in a cylindrical shape, a plurality of water outlet holes are distributed on the side wall of the screen, and one end of the screen is fixedly connected to the end of the quick connector away from the water inlet;

[0009] If the flow disturbance plate is provided, the flow disturbance plate is arranged in the screen, and if the flow disturbance plate is arranged in a spiral shape in the axial direction of the screen;

[0010] The pressure reducing orifice plate is provided with a plurality of pressure reducing water holes, and the pressure reducing orifice plate is arranged at the end of the screen away from the connection quick connector.

[0011] The above-mentioned water tank or pool water inlet silencer device, wherein, also includes a fixing ring, a convex edge protruding toward the inner side of the ring is provided at the inner edge of one end of the fixing ring, and the end of the fixing ring not provided with the convex edge is sleeved on the end of the screen away from the end connected to the quick connector, and at the same time, the pressure reducing orifice plate is located on the inner side of the fixing ring, and the upper and lower surfaces of the pressure reducing orifice plate are respectively against the end and the convex edge of the screen.

[0012] The above-mentioned water tank or pool water inlet silencer device, wherein the screen includes a reverse-rolled screen and a wedge-shaped screen, the reverse-rolled screen and the wedge-shaped screen are both arranged in a cylindrical shape, and water outlet holes are arranged on the side walls of both, and at the same time, the reverse-rolled screen is arranged outside the wedge-shaped screen.

[0013] The above-mentioned water tank or pool water inlet silencer device, wherein the reverse-rolled screen includes a plurality of longitudinal bars and a plurality of fixed rings, the plurality of fixed rings are spaced apart and coaxially distributed along the axial direction thereof, and a plurality of longitudinal bars are fixedly arranged in a circular array on the outside of the plurality of fixed rings, and the length direction of the longitudinal bars is the axial direction of the fixed rings, and at the same time, two adjacent longitudinal bars and two adjacent fixed rings form a water outlet.

[0014] The above-mentioned water tank or pool water inlet silencer device, wherein the cross-sections of the longitudinal bars and the fixing ring are both arranged in an isosceles trapezoidal shape, and the surface where the lower base edges of the cross-sections of several longitudinal bars are located surrounds the outer side surface of the reverse-rolled screen, and positioning holes are opened on the inner side of the reverse-rolled screen and on each longitudinal bar, and the side where the lower base edge of the cross-section of the fixing ring is located is embedded in the positioning hole.

[0015] The above-mentioned water tank or pool water inlet silencer device, wherein the wedge-shaped screen includes a spiral body and a plurality of fixed bars, the spiral body is a structure with equal pitch and equal circle diameter, the plurality of fixed bars are arranged in a circular array on the inner side of the spiral body and fixedly connected to the spiral body, and two adjacent layers of spiral circles of the spiral body and two adjacent fixed bars form a water outlet.

[0016] In the above-mentioned water tank or pool water inlet silencer, the spiral body is formed by spirally winding a long strip structure with an isosceles trapezoidal cross section, and the surface where the lower base of the cross section of each spiral turn of the spiral body is located constitutes the outer side surface of the spiral body.

[0017] In the above-mentioned water tank or pool water inlet silencer, the cross-section of the fixing strip is arranged in an isosceles trapezoidal shape, and a trapezoidal fixing hole corresponding to the fixing strip is opened on the inner wall of each spiral circle of the spiral body.

[0018] The above-mentioned water tank or pool water inlet silencer device, wherein the quick connector includes an outer cylinder, an inner cylinder and a locking bolt, the outer cylinder is sleeved outside the inner cylinder, one end of the outer cylinder is fixedly connected to one end of the reverse roll screen, one end of the inner cylinder abuts against the end of the wedge-shaped screen, and a plurality of penetrating locking holes are opened on the side wall of the outer cylinder, the threaded end of the locking bolt is screwed into the locking hole and extends into the outer cylinder, and at the same time, the end of the locking bolt extending into the outer cylinder also abuts against the outer wall of the inner cylinder.

[0019] In the above-mentioned water tank or pool water inlet silencer, the spoiler is arranged in a rectangular plate-shaped structure, and the two ends of the spoiler are fixed on the spiral body or the fixing strip.

[0020] The positive effects of the above technical solution are:

[0021] The above-mentioned water tank or pool water inlet silencer is installed on the water inlet, and a screen is provided which includes a wedge-shaped screen and a reverse-rolled screen arranged inside and outside, and water outlet holes are provided on them. At the same time, a spoiler distributed in a spiral shape is provided in the wedge-shaped screen, and a pressure reducing orifice is provided at one end of the screen, so that after the incoming water flows in, the water flow direction can be changed through the screen, the spoiler and the pressure reducing orifice, the water inlet pressure loss is increased, and the water pressure is gradually weakened, thereby reducing the impact of the incoming water on the wall and water surface of the water tank or pool, and reducing noise; at the same time, it can also avoid the problem of water quality deterioration caused by the incoming water approaching the bottom of the water tank or pool, and meet people's living needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of an embodiment of a water tank or pool water inlet silencing device of the present invention;

[0023] Figure 2 An exploded view of a preferred embodiment of the present invention;

[0024] Figure 3 A structural diagram showing a preferred embodiment of the present invention from one viewing angle;

[0025] Figure 4 A cross-sectional view of a preferred embodiment of the present invention;

[0026] Figure 5 A structural diagram of a wedge-shaped screen from one perspective of a preferred embodiment of the present invention;

[0027] Figure 6 A structural diagram of a wedge-shaped screen from another perspective of a preferred embodiment of the present invention;

[0028] Figure 7 A longitudinal cross-sectional view of a wedge-shaped screen according to a preferred embodiment of the present invention;

[0029] Figure 8 for Figure 7Enlarged view of part A.

[0030] In the attached drawings: 1, quick connector; 11, outer cylinder; 12, inner cylinder; 13, locking bolt; 2, screen; 21, reverse roll screen; 22, wedge-shaped screen; 211, longitudinal bar; 212, fixing ring; 2111, positioning hole; 221, spiral; 222, fixing bar; 2211, fixing hole; 3, spoiler; 4, pressure reducing orifice; 41, pressure reducing water hole; 5, fixing ring; 51, convex edge. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments are combined with the attached Figure 1 To Attachment Figure 8 The technical solution provided by the present invention is described in detail, but the following content is not intended to limit the present invention.

[0032] Figure 1 It is a structural diagram of an embodiment of a water tank or pool water inlet silencing device of the present invention; Figure 2 An exploded view of a preferred embodiment of the present invention; Figure 3 A structural diagram showing a preferred embodiment of the present invention from one viewing angle; Figure 4 FIG. 2 is a cross-sectional view of a preferred embodiment of the present invention. Figures 1 to 4 As shown, the water tank or pool water inlet silencing device provided in this embodiment includes: a quick connector 1, a screen 2, a spoiler 3 and a pressure reducing orifice 4, the screen 2 is arranged in a cylindrical shape, one end of the screen 2 is provided with a quick connector 1, and the other end is provided with a pressure reducing orifice 4, and the spoiler 3 is arranged in the screen 2, and the quick connector 1 is installed on the water inlet of the water tank or the pool, so that the water flowing in from the water inlet can change the direction of the water flow through the screen 2, the spoiler 3 and the pressure reducing orifice 4, increase the water inlet pressure loss, so that the water pressure is gradually weakened, and the water inlet pressure is gradually reduced. The impact of incoming water on the wall and water surface of the water tank or pool is reduced, thereby achieving the purpose of noise reduction. At the same time, there is no need to extend the water inlet pipe to the bottom of the water tank or pool to achieve noise reduction, thereby avoiding the problem of water quality deterioration caused by the incoming water approaching the bottom of the water tank or pool, better meeting people's life needs, and by setting screens 2 of different calibers or different lengths, and matching quick connectors 1, spoilers 3 and pressure reducing orifice plates 4, it is possible to adapt to water tanks or pools of different specifications and meet different usage needs.

[0033] Specifically, one end of the quick connector 1 is connected to the water inlet of the water tank or the pool, realizing a quick-release connection between the water inlet silencer device in this embodiment and the water inlet in the water tank or the pool, thereby facilitating installation.

[0034] Specifically, the screen 2 is arranged in a cylindrical shape, and a plurality of water outlet holes are distributed on the side wall of the screen 2, and one end of the screen 2 is fixedly connected to the end of the quick connector 1 away from the water inlet, so that the screen 2 can be connected to the water inlet through a quick structure, and at the same time, the water flowing in from the water inlet can flow out through the water outlet holes on the screen 2, and the water flow direction is changed through the screen 2, thereby increasing the water inlet pressure loss, thereby reducing the pressure of the water flowing out of the water outlet holes of the screen 2, reducing the impact force on the wall of the water tank or pool and the water surface, and achieving noise reduction.

[0035] Specifically, there are several spoilers 3 arranged in the screen 2, and the several spoilers 3 are all arranged in the screen 2. If the spoiler plates 3 are arranged in a spiral shape in the axial direction of the screen 2, the water entering the screen 2 can be further changed in flow direction by the spoilers 3, thereby achieving the purpose of increasing the water inlet pressure loss and realizing the noise reduction of the water inlet of the water tank or the pool.

[0036] Specifically, a plurality of pressure reducing water holes 41 are provided on the pressure reducing orifice plate 4, and the pressure reducing orifice plate 4 is arranged at the end of the screen 2 away from the quick connector 1, so that part of the incoming water in the screen 2 is discharged from the pressure reducing water holes 41 after passing through the spoiler 3. Through the action of the pressure reducing orifice plate 4, the incoming water pressure is further weakened, thereby achieving the purpose of noise reduction.

[0037] Specifically, a fixing ring 5 is further provided at the screen 2 and the pressure reducing orifice 4, and a convex edge 51 protruding toward the inner side of the ring is provided at the inner edge of the fixing ring 5 and located at one end thereof, and the end of the fixing ring 5 not provided with the convex edge 51 is sleeved on the end of the screen 2 away from the end connected to the quick connector 1, and at the same time, the pressure reducing orifice 4 is located at the inner side of the fixing ring 5, and the upper and lower surfaces of the pressure reducing orifice 4 are respectively against the end of the screen 2 and the convex edge 51, so that the pressure reducing orifice 4 can be restricted by the screen 2 and the convex edge 51 of the fixing ring 5, thereby realizing the fixed connection of the pressure reducing orifice 4 at the end of the screen 2, which is convenient for installation, and at the same time ensures the connection strength, and the structural design is more reasonable.

[0038] More specifically, the screen 2 includes a reverse-rolled screen 21 and a wedge-shaped screen 22. Both the reverse-rolled screen 21 and the wedge-shaped screen 22 are cylindrical, and both are provided with water outlet holes 23 on their side walls. At the same time, the reverse-rolled screen 21 is sleeved outside the wedge-shaped screen 22, realizing the inner and outer sleeves of the reverse-rolled screen 21 and the wedge-shaped screen 22, ensuring that the incoming water passing through the screen 2 can be changed in direction multiple times by the reverse-rolled screen 21 and the wedge-shaped screen 22, thereby achieving the maximum reduction in the incoming water pressure and achieving the best noise reduction effect.

[0039] More specifically, the reverse roll screen 21 includes a plurality of longitudinal bars 211 and a plurality of fixed rings 212, the plurality of fixed rings 212 are spaced and coaxially distributed along the axial direction thereof, and a plurality of longitudinal bars 211 are fixedly arranged in an annular array outside the plurality of fixed rings 212, and the length direction of the longitudinal bars 211 is the axial direction of the fixed rings 212, so that the plurality of longitudinal bars 211 can form a cylindrical structure, and the plurality of longitudinal bars 211 are fixedly connected by the fixed rings 212, so that the longitudinal bars 211 and the fixed rings 212 form a crisscross structure, which ensures the structural strength and stability of the overall structure, and also provides space for the arrangement of the wedge-shaped screen 22 and the spoiler 3. In addition, two adjacent longitudinal bars 211 and two adjacent fixed rings 212 form a water outlet 23, so that the water flowing out of the wedge-shaped screen 22 can be further changed in flow direction through the water outlet 23 on the reverse roll screen 21, thereby increasing the water inlet pressure loss and achieving water inlet noise reduction.

[0040] More specifically, the cross-sections of the longitudinal strips 211 and the fixing ring 212 are both isosceles trapezoidal, and the surface where the lower bottom edges of the cross-sections of the longitudinal strips 211 are located surrounds the outer side of the reverse-rolled screen 21, so that each water outlet 23 is a structure with a large inlet and a small outlet, which effectively slows down the water flow rate, thereby weakening the water pressure of the incoming water and further improving the noise reduction effect. A positioning hole 2111 is provided on the inner side of the reverse-rolled screen 21 and on each longitudinal strip 211, and the side where the lower bottom edge of the cross-section of the fixing ring 212 is located is embedded in the positioning hole 2111, so that the connection method of the longitudinal strips 211 and the fixing ring 212 is fixedly connected by an inclined plane, which improves the connection strength, prevents the problem of disengagement during use, and improves safety.

[0041] Figure 5 A structural diagram of a wedge-shaped screen from one perspective of a preferred embodiment of the present invention; Figure 6 A structural diagram of a wedge-shaped screen from another perspective of a preferred embodiment of the present invention; Figure 7 A longitudinal cross-sectional view of a wedge-shaped screen according to a preferred embodiment of the present invention; Figure 8 for Figure 7 This is an enlarged view of part A. Figures 1 to 8As shown, the wedge-shaped screen 22 includes a spiral body 221 and a plurality of fixing bars 222. The spiral body 221 has a structure of equal pitch and equal circle diameter, which ensures that the spiral body 221 can adapt to the internal space of the reverse-rolled screen 21. At the same time, it also facilitates the production and the arrangement of the spoiler 3 therein. In addition, the plurality of fixing bars 222 are arranged in a ring array on the inner side of the spiral body 221 and fixedly connected to the spiral body 221, so that the structural strength of the spiral body 221 is further strengthened by the fixing bars 222, so that the two adjacent layers of spiral circles of the spiral body 221 and the two adjacent fixing bars 222 form a water outlet 23, and also change the water inlet direction entering the wedge-shaped screen 22 from the axial direction of the screen 2 to the radial direction of the screen 2 flowing out of the water outlet 23, thereby increasing the water inlet pressure loss and achieving the purpose of noise reduction.

[0042] More specifically, the spiral body 221 is formed by a spirally wound long strip structure with an isosceles trapezoidal cross-section, and the surface where the lower base of the cross-section of each spiral turn of the spiral body 221 is located constitutes the outer side surface of the spiral body 221. Similarly, the water outlet 23 surrounded by the spiral turns of the spiral body 221 and the fixing strip 222 has a structure with a small inlet and a large outlet, which slows down the water flow rate, further reduces the incoming water pressure, and improves the noise reduction effect.

[0043] More specifically, the cross-section of the fixing strip 222 is an isosceles trapezoid, and a trapezoidal fixing hole 2211 corresponding to the fixing strip 222 is provided on the inner wall of each spiral circle of the spiral body 221, thereby ensuring a fixed connection between the fixing strip 222 and each spiral circle of the spiral body 221. At the same time, it also facilitates the installation of the fixing strip 222 on the spiral body 221, and the structural design is more reasonable.

[0044] More specifically, the quick connector 1 for connecting the water inlet of a water tank or a pool and the screen 2 comprises an outer cylinder 11, an inner cylinder 12 and a locking bolt 13. The outer cylinder 11 is sleeved on the outside of the inner cylinder 12, one end of the outer cylinder 11 is fixedly connected to one end of the reverse-rolled screen 21, one end of the inner cylinder 12 abuts against the end of the wedge-shaped screen 22, and a plurality of penetrating locking holes are provided on the side wall of the outer cylinder 11. The threaded end of the locking bolt 13 is screwed into the locking hole and extends into the outer cylinder 11. At the same time, the end of the locking bolt 13 extending into the outer cylinder 11 also abuts against the outer wall of the inner cylinder 12. The fixed position of the reverse-rolled screen 21 and the wedge-shaped screen 22 are respectively achieved through the combination of the inner cylinder 12 and the outer cylinder 11. At the same time, the quick disassembly and assembly with the water inlet can be achieved by adjusting the locking bolt 13, and the installation is more convenient.

[0045] More specifically, the spoiler 3 is arranged in a rectangular plate-like structure, and the two ends of the spoiler 3 are fixed on the spiral body 221 or the fixing bar 222, that is, the wedge-shaped screen 22 provides a fixed basis for the arrangement of the spoiler 3, so that the structural arrangement of the spoiler 3 in the wedge-shaped screen 22 is more stable, and the bearing strength of the spoiler 3 is effectively improved, the ability of the spoiler 3 to resist water impact is improved, and the stability and adaptability of the structure are improved.

[0046] As a preferred embodiment, the water outlets of the reverse-rolled screen 21 and the wedge-shaped screen 22 are staggered, which can further increase the water inlet pressure loss and enhance the noise reduction effect.

[0047] As a preferred embodiment, the end of the fixing ring 5 not provided with the flange 51 is sleeved on the outside of the end of the reverse-rolled screen 21, which facilitates the fixed connection between the fixing ring 5 and the reverse-rolled screen 21 and makes the structural design more reasonable.

[0048] As a preferred embodiment, the longitudinal bars 211 and the fixed ring 212 of the reverse-rolled screen 21, the spiral body 221 and the fixed bar 222 of the wedge-shaped screen 22, the reverse-rolled screen 21 and the fixed ring 5, and the reverse-rolled screen 21 and the outer cylinder 11 are all connected by welding, which ensures the connection strength and enhances the structural bearing capacity.

[0049] The water tank or pool water inlet silencing device provided in the present embodiment comprises a quick connector 1, a screen 2, a spoiler 3 and a pressure reducing orifice 4; the screen 2 comprising a wedge-shaped screen 22 and a reverse-rolled screen 21 is connected to the water inlet of the water tank or the pool through the quick connector 1, and at the same time, a plurality of spoiler plates 3 are spirally arranged in the screen 2, and a pressure reducing orifice 4 is provided at the end of the screen 2 away from the quick connector 1, so that after the incoming water enters the screen 2 from the water inlet, the screen 2, the spoiler 3 and the pressure reducing orifice 4 can change the direction of the water flow, thereby increasing the water inlet pressure loss, so that the incoming water pressure gradually decreases, thereby reducing the impact force of the incoming water on the wall and water surface of the water tank or the pool, and achieving the purpose of noise reduction. At the same time, it can also avoid the problem of water quality deterioration caused by the way of increasing the water inlet pipe to close to the bottom to achieve noise reduction, and can better meet people's normal life needs.

[0050] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A water tank or pool water inlet silencing device, installed on the water inlet of the water tank or pool, characterized in that: include: A quick connector, one end of which is connected to the water inlet of the water tank or pool; A screen, wherein the screen is arranged in a cylindrical shape, a plurality of water outlet holes are distributed on the side wall of the screen, and one end of the screen is fixedly connected to an end of the quick connector away from the water inlet; If spoilers are provided, the spoilers are all disposed in the screen, and a plurality of the spoilers are arranged in a spiral shape in the axial direction of the screen; A pressure reducing orifice plate, wherein a plurality of pressure reducing water holes are formed on the pressure reducing orifice plate, and the pressure reducing orifice plate is arranged at the end of the screen away from the end connected to the quick connector; It also includes a fixing ring, wherein a convex edge protruding toward the inner side of the ring is provided at the inner edge of one end of the fixing ring, and the end of the fixing ring not provided with the convex edge is sleeved on the end of the screen away from the end connected to the quick connector, and at the same time, the pressure reducing orifice is located on the inner side of the fixing ring, and the upper and lower surfaces of the pressure reducing orifice are respectively against the end of the screen and the convex edge; The screen comprises a reverse-rolled screen and a wedge-shaped screen. Both the reverse-rolled screen and the wedge-shaped screen are arranged in a cylindrical shape, and the water outlet holes are arranged on the side walls of both. Meanwhile, the reverse-rolled screen is sleeved outside the wedge-shaped screen.

2. The water tank or pool water inlet silencing device according to claim 1, characterized in that: The reverse-rolled screen includes a plurality of longitudinal bars and a plurality of fixed rings, wherein the plurality of fixed rings are spaced apart and coaxially distributed along the axial direction thereof, and a plurality of longitudinal bars are fixedly arranged in a circular array on the outside of the plurality of fixed rings, and the length direction of the longitudinal bars is the axial direction of the fixed rings, and at the same time, two adjacent longitudinal bars and two adjacent fixed rings form the water outlet.

3. The water tank or pool water inlet silencing device according to claim 2, characterized in that: The cross-sections of the longitudinal bars and the fixing ring are both isosceles trapezoidal, and the surfaces where the lower bases of the cross-sections of several longitudinal bars are located surround the outer side surfaces of the reverse-rolled screen, and positioning holes are opened on the inner side of the reverse-rolled screen and on each of the longitudinal bars, and the side where the lower base of the cross-section of the fixing ring is located is embedded in the positioning hole.

4. The water tank or pool water inlet silencing device according to claim 1, characterized in that: The wedge-shaped screen includes a spiral body and a plurality of fixing bars. The spiral body is a structure with equal pitch and equal circle diameter. The plurality of fixing bars are arranged in a circular array on the inner side of the spiral body and are fixedly connected to the spiral body. Two adjacent layers of spiral circles of the spiral body and two adjacent fixing bars form a water outlet.

5. The water tank or pool water inlet silencing device according to claim 4, characterized in that: The spiral body is formed by spirally winding a long strip structure with an isosceles trapezoidal cross section, and the surface where the lower base of the cross section of each spiral turn of the spiral body is located constitutes the outer side surface of the spiral body.

6. The water tank or pool water inlet silencing device according to claim 5, characterized in that: The cross section of the fixing strip is arranged in an isosceles trapezoidal shape, and a trapezoidal fixing hole corresponding to the fixing strip is provided on the inner wall of each spiral circle of the spiral body.

7. The water tank or pool water inlet silencing device according to any one of claims 1 to 6, characterized in that: The quick connector includes an outer cylinder, an inner cylinder and a locking bolt. The outer cylinder is sleeved outside the inner cylinder. One end of the outer cylinder is fixedly connected to one end of the reverse-rolled screen. One end of the inner cylinder abuts against the end of the wedge-shaped screen. A plurality of penetrating locking holes are provided on the side wall of the outer cylinder. The threaded end of the locking bolt is screwed into the locking hole and extends into the outer cylinder. At the same time, the end of the locking bolt extending into the outer cylinder also abuts against the outer wall of the inner cylinder.

8. The water tank or pool water inlet silencing device according to claim 4, characterized in that: The spoiler is arranged in a rectangular plate-shaped structure, and two ends of the spoiler are fixed on the spiral body or the fixing strip.

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