Energy reducer for building drainage system

Abstract

The application provides a reducer for a house building drainage system, which solves the problem that the existing reducer directly blocks the direction of water flow with large kinetic energy from a high place to change the water flow direction, resulting in the internal structure of the reducer wearing out quickly. The application comprises a vertically arranged main pipe, which is a tubular structure penetrating from top to bottom, the upper end of the main pipe is detachably and sealingly connected with the lower end of an upper water-saving pipe, the lower end of the main pipe is detachably and sealingly connected with the upper end of a lower water-saving pipe, the interiors of the upper water-saving pipe, the main pipe and the lower water-saving pipe are in communication from top to bottom; the interior of the main pipe is fixedly provided with a kinetic energy offset device, the kinetic energy offset device comprises a straight pipe penetrating from top to bottom and arranged vertically, the outer diameter of the straight pipe is smaller than the inner diameter of the main pipe, the straight pipe is fixedly provided on a first fixed plate, a bend pipe is fixedly provided at the lower end of the straight pipe, the end of the bend pipe away from the connecting plate faces upward, and the end of the bend pipe away from the connecting plate is provided with a one-way valve.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building drainage, in particular to a energy reducer for building drainage system. BACKGROUND

[0002] With the rapid development of urban construction, the number of high-rise buildings and super high-rise buildings is increasing. The energy dissipation drainage and sewage pipes in the original design specification are constantly breaking and falling off during use. The reason is that the high-rise buildings in the original specification are almost within 20 floors, while the current high-rise buildings are almost above 30 floors. The drainage and sewage pipes cannot withstand the potential energy accumulated by the sewage of high-rise buildings, which is converted into kinetic energy during free fall, causing a huge impact on the drainage and sewage pipes required by the original specification, resulting in the breaking or falling off of the drainage and sewage pipes, causing cross-flow of domestic sewage and pollution of community life. Due to the high height of high-rise buildings, the post-repair work is difficult and costly.

[0003] Patent No. 202121951288.2 discloses an energy reducer for building drainage system. However, when reducing energy, the energy reducer blocks the upward backflow of water flow and makes the water flow flow downward again. This design of energy reducer blocks the direction of water flow with large kinetic energy from high place for a long time and continuously changes the direction of water flow, which cannot utilize the backflow of water to offset the kinetic energy of water falling from high place, resulting in rapid wear of the internal structure of the energy reducer and low service life. SUMMARY

[0004] To solve the problem that the existing energy reducer directly blocks the direction of water flow with large kinetic energy from high place to change the direction of water flow, resulting in rapid wear of the internal structure of the energy reducer, the present application proposes an energy reducer for building drainage system.

[0005] The technical solution of the present application is: an energy reducer for building drainage system, comprising a vertically arranged main pipe, the main pipe being a tubular structure penetrating from top to bottom, the upper end of the main pipe being detachably and sealingly connected with the lower end of an upper water pipe, the lower end of the main pipe being detachably and sealingly connected with the upper end of a lower water pipe, the interiors of the upper water pipe, the main pipe and the lower water pipe being in communication;

[0006] A first fixed plate is fixedly arranged in the interior of the main pipe, the first fixed plate being arranged transversely, and the width of the first fixed plate being smaller than the inner diameter of the main pipe;

[0007] The first fixed plate is fixedly provided with a kinetic energy offset device. The kinetic energy offset device comprises a straight pipe which is vertically arranged and penetrates the first fixed plate. The outer diameter of the straight pipe is smaller than the inner diameter of the main pipe. A connecting plate is fixedly arranged at the lower end of the straight pipe. A plurality of through holes which penetrate the connecting plate vertically and are arranged in a ring shape are arranged on the connecting plate. A bend pipe is fixedly arranged at the through holes. The end of the bend pipe which is away from the connecting plate is directed upward. A one-way valve is arranged at the end of the bend pipe which is away from the connecting plate. The one-way valve is used to prevent water from flowing back into the straight pipe from the bend pipe.

[0008] Preferably, the straight pipe and the main pipe are coaxially arranged. The ends of the plurality of bend pipes which are away from the connecting plate are arranged in a ring shape at equal distances on a horizontal plane.

[0009] Preferably, the upper end of the straight pipe is fixedly connected with a funnel which is large at the upper end and small at the lower end. The inner diameter of the upper end of the funnel is larger than the inner diameter of the straight pipe. The outer diameter of the upper end of the funnel is smaller than the inner diameter of the main pipe.

[0010] Preferably, the inside of the main pipe is fixedly provided with a dynamic valve mechanism. The dynamic valve mechanism is located below the kinetic energy offset device.

[0011] The dynamic valve mechanism comprises an annular limiting block which is fixedly arranged on the inner wall of the main pipe. A conical circular truncated cone which can move up and down is movably arranged in the ring of the annular limiting block. The conical circular truncated cone is narrow at the upper end and wide at the lower end. The maximum diameter of the conical circular truncated cone is equal to the inner diameter of the annular limiting block.

[0012] The bottom of the conical circular truncated cone is fixedly provided with a vertically arranged spring telescopic rod. The bottom of the spring telescopic rod is fixedly arranged on a second fixed plate which is horizontally arranged. The second fixed plate is fixedly connected with the inner wall of the main pipe.

[0013] Preferably, the annular limiting block comprises an equal-diameter ring segment and an inclined ring segment. The equal-diameter ring segment is located at the bottom of the inclined ring segment. The inner diameter of the equal-diameter ring segment is equal to the maximum diameter of the conical circular truncated cone.

[0014] The inner diameter of the inclined ring segment gradually decreases in the direction from top to bottom. The maximum inner diameter of the bottom of the inclined ring segment is equal to the inner diameter of the equal-diameter ring segment.

[0015] Preferably, a plurality of annular flow guide strips which are arranged at intervals in the upward and downward directions are fixedly arranged on the inner wall of the main pipe. The vertical section of the annular flow guide strip is in a right triangle structure which is narrow at the upper end and wide at the lower end.

[0016] Preferably, a standby branch pipe is connected to the main pipe. The standby branch pipe is in a U-shaped pipe structure with an opening directed to the left. The upper and lower two ports of the standby branch pipe are in communication with the inside of the main pipe. The kinetic energy offset device and the dynamic valve mechanism in the main pipe are located between the upper and lower two ports of the standby branch pipe.

[0017] The standby branch pipe comprises a vertical pipe segment which extends in the upward and downward directions. The vertical pipe segment is provided with a kinetic energy offset device and a dynamic valve mechanism which have the same structure and layout as those in the main pipe.

[0018] The standby branch pipe is provided with a valve, which is located above the kinetic energy offset device in the vertical pipe section.

[0019] Preferably, the standby branch pipe further comprises a first inclined pipe and a second inclined pipe, the first inclined pipe is arranged in a left-to-right and top-to-bottom direction, the left port of the first inclined pipe is in communication with the interior of the main pipe, the valve is located on the first inclined pipe, and the right port of the first inclined pipe is connected with the upper port of the vertical pipe section.

[0020] The second inclined pipe is arranged in a left-to-right and bottom-to-top direction, the left port of the second inclined pipe is in communication with the interior of the main pipe, and the right port of the second inclined pipe is connected with the upper port of the vertical pipe section.

[0021] Preferably, a plurality of annular flow guide strips are fixedly arranged on the inner walls of the main pipe and the vertical pipe section in a vertically spaced manner, and the vertical section of the annular flow guide strip is in a right-angled triangular structure with a narrow top and a wide bottom.

[0022] Preferably, the outer side walls of the upper and lower ends of the main pipe, the outer side wall of the lower end of the upper water-saving pipe and the outer side wall of the upper end of the lower water-saving pipe are all provided with external threads.

[0023] A first internal thread sleeve is sleeved at the joint of the upper end of the main pipe and the lower end of the upper water-saving pipe, and the first internal thread sleeve is threadedly connected with the upper end of the main pipe and the lower end of the upper water-saving pipe.

[0024] A second internal thread sleeve is sleeved at the joint of the lower end of the main pipe and the upper end of the lower water-saving pipe, and the second internal thread sleeve is threadedly connected with the lower end of the main pipe and the upper end of the lower water-saving pipe.

[0025] The advantages of the present application are that a part of the water flow entering the main pipe from the upper water-saving pipe is sprayed from above along the straight pipe-bend pipe-one-way valve of the kinetic energy offset device to form a plurality of backflushing water columns, the backflushing water columns collide with a part of the water flow falling from above to offset a part of the potential energy of the falling water flow, without forcibly changing the direction of the water flow by the blocking effect of the internal structure of the energy reducer, so that the wear rate of the internal structure of the energy reducer is greatly reduced, and the service life of the energy reducer can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0027] Figure 1 It is an external structure diagram of the energy reducer in embodiment 1.

[0028] Figure 2 is Figure 1 the internal structure diagram of the energy reducer in

[0029] Figure 3 is Figure 2 the partial structure diagram of the kinetic energy offset device and the dynamic valve mechanism in A-A section in

[0030] In the figure, 1 is a main pipe, 2 is a standby branch pipe, 201 is a first inclined pipe, 202 is a vertical pipe section, 203 is a second inclined pipe, 3 is a valve, 4 is an upper water-segmenting pipe, 5 is a first internal threaded sleeve, 6 is a lower water-segmenting pipe, 7 is a second internal threaded sleeve, 8 is a kinetic energy offset device, 801 is a funnel, 802 is a straight pipe, 803 is an elbow pipe, 804 is a one-way valve, 9 is a first fixed plate, 10 is an annular limiting block, 11 is a conical truncated cone, 12 is a spring telescopic rod, 13 is a second fixed plate, and 14 is an annular flow guide strip. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Embodiment 1: An energy reducer for a housing building drainage system, as shown in Figure 1 and Figure 2 , comprising a vertically arranged main pipe 1, the main pipe 1 being a tubular structure that is transparent from top to bottom, the upper end of the main pipe 1 being detachably and sealingly connected with the lower end of an upper water-segmenting pipe 4, the lower end of the main pipe 1 being detachably and sealingly connected with the upper end of a lower water-segmenting pipe 6, the interiors of the upper water-segmenting pipe 4, the main pipe 1 and the lower water-segmenting pipe 6 being in communication.

[0033] Specifically, in order to facilitate disassembly and assembly, as shown in Figure 2 , external threads are arranged on the outer side walls of the upper and lower ends of the main pipe 1, the outer side wall of the lower end of the upper water-segmenting pipe 4 and the outer side wall of the upper end of the lower water-segmenting pipe 6.

[0034] A first internal threaded sleeve 5 is sleeved on the joint between the upper end of the main pipe 1 and the lower end of the upper water-segmenting pipe 4, and the first internal threaded sleeve 5 is threadedly connected with the upper end of the main pipe 1 and the lower end of the upper water-segmenting pipe 4.

[0035] A second internal threaded sleeve 7 is sleeved on the joint between the lower end of the main pipe 1 and the upper end of the lower water-segmenting pipe 6, and the second internal threaded sleeve 7 is threadedly connected with the lower end of the main pipe 1 and the upper end of the lower water-segmenting pipe 6.

[0036] A first fixed plate 9 is fixedly arranged inside the main pipe 1 in a transverse manner, and the width of the first fixed plate 9 is smaller than the inner diameter of the main pipe 1.

[0037] The kinetic energy offset device 8 is fixed on the first fixed plate 9, and the kinetic energy offset device 8 comprises a straight pipe 802 which is vertically arranged and penetrates the first fixed plate 9 from top to bottom, the outer diameter of the straight pipe 802 is smaller than the inner diameter of the main pipe 1, and the upper end of the straight pipe 802 is fixedly connected with a funnel 801 which is large at the top and small at the bottom, the inner diameter of the upper end of the funnel 801 is larger than the inner diameter of the straight pipe 802, and the outer diameter of the upper end of the funnel 801 is smaller than the inner diameter of the main pipe 1.

[0038] A connecting plate is fixedly arranged at the lower end of the straight pipe 802, a plurality of through holes which penetrate the connecting plate from top to bottom and are arranged in a ring shape are arranged on the connecting plate, and a bend pipe 802 is fixedly arranged at each through hole, the end of the bend pipe 802 away from the connecting plate is arranged upward, and a one-way valve 804 is arranged at the end of the bend pipe 802 away from the connecting plate, so as to prevent water from flowing back into the straight pipe 802 from the bend pipe 802.

[0039] The straight pipe 802 is coaxially arranged with the main pipe 1, and the ends of the plurality of bend pipes 802 away from the connecting plate are arranged in a ring shape at equal distances on a horizontal plane, so that the backflow water flow discharged from the bend pipes 802 can be uniformly distributed at a plurality of points in the main pipe 1, so as to obtain a more excellent kinetic energy offset effect.

[0040] In order to dynamically and automatically adjust the water flow discharged from the kinetic energy reducer according to the amount of water falling from above and the kinetic energy of the water flow, and further reduce the impact on the water pipe and other components below the kinetic energy reducer, as shown in Figure 2 and Figure 3 a dynamic valve mechanism is fixedly arranged in the main pipe 1 below the kinetic energy offset device 8.

[0041] The dynamic valve mechanism comprises a ring-shaped limiting block 10 fixedly arranged on the inner wall of the main pipe 1, and a conical circular truncated cone 11 movably arranged in the ring of the ring-shaped limiting block 10 and capable of moving up and down, the conical circular truncated cone 11 has a structure of being narrow at the top and wide at the bottom, and the maximum diameter of the conical circular truncated cone 11 is equal to the inner diameter of the ring-shaped limiting block 10.

[0042] In order to facilitate the rapid gathering of the water flow flowing along the wall to the conical circular truncated cone 11, as shown in Figure 3 the ring-shaped limiting block 10 comprises an equal-diameter ring segment and an inclined ring segment, the equal-diameter ring segment is located at the bottom of the inclined ring segment, and the inner diameter of the equal-diameter ring segment is equal to the maximum diameter of the conical circular truncated cone 11.

[0043] The inner diameter of the inclined ring segment gradually decreases in the direction from top to bottom, and the maximum inner diameter of the bottom of the inclined ring segment is equal to the inner diameter of the equal-diameter ring segment.

[0044] The bottom of the conical circular truncated cone 11 is fixed with a vertically arranged spring telescopic rod 12, the bottom of the spring telescopic rod 12 is fixed on a transversely arranged second fixed plate 13, and the second fixed plate 13 is fixedly connected with the inner wall of the main pipe 1.

[0045] In order to prevent the main pipe 1 from being accidentally blocked, causing the whole energy reducer to be unable to work normally, and in the case that the water flow is too large, the kinetic energy offset device 8 and the dynamic valve mechanism in the main pipe 1 cannot be processed in time, as shown in Figure 1 and Figure 2 In the embodiment, the main pipe 1 is connected with a standby branch pipe 2, the standby branch pipe 2 is a U-shaped pipe structure with an opening facing left, and the standby branch pipe 2 further includes a first inclined pipe 201, a vertical pipe section 202 and a second inclined pipe 203. The first inclined pipe 201 is arranged in a left-to-right and top-to-bottom direction, the left end of the first inclined pipe 201 is in communication with the inside of the main pipe 1, and the first inclined pipe 201 is provided with a valve 3. The vertical pipe section 202 extends in the up-down direction, and the right end of the first inclined pipe 201 is connected with the upper end of the vertical pipe section 202.

[0046] The second inclined pipe 203 is arranged in a left-to-right and bottom-to-top direction, the left end of the second inclined pipe 203 is in communication with the inside of the main pipe 1, and the right end of the second inclined pipe 203 is connected with the upper end of the vertical pipe section 202.

[0047] The first inclined pipe 201 and the second inclined pipe 203 are arranged in an inclined manner, so that the water flow can more smoothly flow into and out of the standby branch pipe 2.

[0048] The kinetic energy offset device 8 and the dynamic valve mechanism in the main pipe 1 are located between the upper and lower ports of the standby branch pipe 2. The vertical pipe section 202 is provided with kinetic energy offset devices 8 and dynamic valve mechanisms which have the same structure and layout as those in the main pipe 1.

[0049] In order to further reduce the water flow speed through the energy reducer, and to gather the water flow along the main pipe 1 and the vertical pipe section 202 to the middle of the pipe, reducing the erosion of the water flow to the pipe wall, as shown in Figure 2 and Figure 3 In the embodiment, a plurality of annular flow guide strips 14 are fixedly arranged on the inner walls of the main pipe 1 and the vertical pipe section 202 in an up-down direction, and the vertical section of the annular flow guide strip 14 is a right-angled triangle structure with a narrow top and a wide bottom.

[0050] Working principle: (1) a part of water flow from the upper water pipe 4 into the main pipe 1, after being collected by the funnel 801 of the kinetic energy offset device 8, enters the straight pipe 802, and then sprays out from the top along the straight pipe 802-bend pipe 803-one-way valve 804, forming multiple backflushing water columns, which collide with a part of the water flow falling from the top, offsetting a part of the potential energy of the falling water flow, without relying on the blocking effect of the internal structure of the energy reducer itself to forcibly change the direction of the water flow, greatly reducing the wear rate of the internal structure of the energy reducer, and effectively improving the service life of the energy reducer.

[0051] (2) A dynamic valve mechanism is arranged below the kinetic energy offset device 8, which can dynamically and automatically adjust the water flow out of the energy reducer according to the amount of water falling from the top and the kinetic energy of the water flow, and the water flow moves up and down under the action of the spring telescopic rod 12 by pushing the conical frustum 11 to control the size of the gap between the conical frustum 11 and the annular limiting block 10 for the water storage tank to pass through, further reducing the impact on the water pipes and other components below the energy reducer.

[0052] (3) The standby branch pipe 2 is connected to the main pipe 1, and the valve 3 is arranged on the standby branch pipe 2, and the kinetic energy offset device 8 and the dynamic valve mechanism with the same structure and layout as in the main pipe 1 are arranged in the vertical pipe section 202 of the standby branch pipe 2, which can prevent accidental blockage in the main pipe 1, causing the energy reducer as a whole to not work normally, and in the case of too much water, the kinetic energy offset device 8 and the dynamic valve mechanism in the main pipe 1 cannot handle it in time.

[0053] (4) A plurality of annular flow guide strips 14 are fixed on the inner walls of the main pipe 1 and the vertical pipe section 202, which are arranged in an upward and downward interval, and the vertical section of the annular flow guide strip 14 is a right triangle structure with narrow top and wide bottom, which can further reduce the water flow speed through the energy reducer, and gather the water flow along the main pipe 1 and the vertical pipe 202 to the middle of the pipe, reducing the wear of the pipe wall by the water flow.

[0054] Embodiment 2: A kind of energy reducer for housing construction drainage system, the difference between this embodiment and embodiment 1 is that standby branch pipe 2 is no longer arranged, and other structures are the same as embodiment 1.

[0055] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims, not by the above description, so all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An energy reducer for a building drainage system, characterized in that: It includes a vertically installed main pipe (1), which is a tubular structure that is open at both ends. The upper end of the main pipe (1) is detachably and sealed to the lower end of the upper water pipe (4), and the lower end of the main pipe (1) is detachably and sealed to the upper end of the lower water pipe (6). The upper water pipe (4), the main pipe (1) and the lower water pipe (6) are internally connected vertically. The main pipe (1) is fixedly provided with a first fixing plate (9) arranged horizontally inside, and the width of the first fixing plate (9) is smaller than the inner diameter of the main pipe (1); A kinetic energy cancellation device (8) is fixedly installed on the first fixed plate (9). The kinetic energy cancellation device (8) includes a vertically oriented straight pipe (802) that is open from top to bottom. The outer diameter of the straight pipe (802) is smaller than the inner diameter of the main pipe (1). The straight pipe (802) is fixedly installed on the first fixed plate (9). A connecting plate is fixedly installed at the lower end of the straight pipe (802). The connecting plate has multiple through holes that are open from top to bottom and arranged in a circumferential direction. A bent pipe (802) is fixedly installed at the through hole. The end of the bent pipe (802) away from the connecting plate faces upward. A one-way valve (804) is installed at the end of the bent pipe (802) away from the connecting plate. The one-way valve (804) is used to prevent water from flowing back into the straight pipe (802) from the bent pipe (802).

2. The energy reducer for a building drainage system as described in claim 1, characterized in that: The straight pipe (802) and the main pipe (1) are coaxially arranged, and the ends of the multiple bends (802) away from the connecting plate are arranged in a circumferential and equidistant manner on the horizontal plane.

3. An energy reducer for a building drainage system as described in claim 1 or 2, characterized in that: The upper end of the straight pipe (802) is fixedly connected to a funnel (801) that is larger at the top and smaller at the bottom. The inner diameter of the upper opening of the funnel (801) is larger than the inner diameter of the straight pipe (802), and the outer diameter of the upper end of the funnel (801) is smaller than the inner diameter of the main pipe (1).

4. The energy reducer for a building drainage system as described in claim 1, characterized in that: The main body (1) is equipped with a dynamic valve mechanism, which is located below the kinetic energy cancellation device (8); The dynamic valve mechanism includes an annular limiting block (10) fixed on the inner wall of the main pipe (1). The annular limiting block (10) has a movable conical truncated cone (11) that can move up and down inside the ring. The conical truncated cone (11) has a structure that is narrow at the top and wide at the bottom. The maximum diameter of the conical truncated cone (11) is equal to the inner diameter of the annular limiting block (10). The bottom of the conical truncated cone (11) is fixedly provided with a vertically arranged spring telescopic rod (12), and the bottom of the spring telescopic rod (12) is fixedly provided on a horizontally arranged second fixed plate (13). The second fixed plate (13) is fixedly connected to the inner wall of the main pipe (1).

5. An energy reducer for a building drainage system as described in claim 4, characterized in that: The annular limiting block (10) includes an equal diameter ring segment and an inclined ring segment. The equal diameter ring segment is located at the bottom of the inclined ring segment, and the inner diameter of the equal diameter ring segment is equal to the maximum diameter of the conical frustum (11). The inner diameter of the inclined ring gradually decreases from top to bottom, and the maximum inner diameter at the bottom of the inclined ring is equal to the inner diameter of the constant diameter ring.

6. The energy reducer for a building drainage system as described in claim 1, characterized in that: Multiple annular guide strips (14) are fixedly provided on the inner wall of the main tube (1) at intervals along the top and bottom. The vertical cross section of the annular guide strips (14) is a right-angled triangle structure that is narrow at the top and wide at the bottom.

7. An energy reducer for a building drainage system as described in claim 4 or 5, characterized in that: A spare branch pipe (2) is connected to the main pipe (1). The spare branch pipe (2) is a U-shaped pipe structure with the opening facing left. Both the upper and lower ports of the spare branch pipe (2) are connected to the interior of the main pipe (1). The kinetic energy cancellation device (8) and the dynamic valve mechanism inside the main pipe (1) are located between the upper and lower ports of the spare branch pipe (2). The backup branch pipe (2) includes a vertical pipe section (202) extending in the vertical direction. The vertical pipe section (202) is equipped with a kinetic energy cancellation device (8) and a dynamic valve mechanism that have the same structure and layout as the main pipe (1). A valve (3) is provided on the spare branch pipe (2), and the valve (3) is located above the kinetic energy cancellation device (8) in the vertical pipe section (202).

8. An energy reducer for a building drainage system as described in claim 7, characterized in that: The backup branch pipe (2) also includes a first inclined pipe (201) and a second inclined pipe (203). The first inclined pipe (201) is inclined from left to right and from top to bottom. The left port of the first inclined pipe (201) is connected to the inside of the main pipe (1). The valve (3) is located on the first inclined pipe (201). The right port of the first inclined pipe (201) is connected to the upper port of the vertical pipe section (202). The second inclined tube (203) is inclined from left to right and from bottom to top. The left port of the second inclined tube (203) is connected to the interior of the main tube (1), and the right port of the second inclined tube (203) is connected to the upper port of the vertical tube section (202).

9. An energy reducer for a building drainage system as described in claim 7, characterized in that: Multiple annular guide strips (14) are fixedly provided on the inner walls of the main pipe (1) and the vertical pipe section (202) at intervals along the top and bottom. The vertical cross section of the annular guide strip (14) is a right-angled triangle structure that is narrow at the top and wide at the bottom.

10. An energy reducer for a building drainage system as described in claim 1, characterized in that: External threads are provided on the outer walls of the upper and lower ends of the main pipe (1), the outer wall of the lower end of the upper water pipe (4), and the outer wall of the upper end of the lower water pipe (6); A first internal threaded sleeve (5) is fitted at the joint between the upper end of the main pipe (1) and the lower end of the upper water-saving pipe (4). The first internal threaded sleeve (5) is threadedly connected to both the upper end of the main pipe (1) and the lower end of the upper water-saving pipe (4). A second internal threaded sleeve (7) is fitted at the joint between the lower end of the main pipe (1) and the upper end of the lower water pipe (6). The second internal threaded sleeve (7) is threadedly connected to both the lower end of the main pipe (1) and the upper end of the lower water pipe (6).

Images