Water inlet device and trap water replenishment system

Abstract

The application discloses a water inlet device and a water trap water supplementing system, which comprises a vertical pipe part, a water receiving part and a water inlet part. The vertical pipe part is internally provided with an annular water inlet gap and an annular water seal structure arranged along the inner wall circumference of the vertical pipe. The annular water inlet gap is communicated with the water outlet end of the annular water seal structure and is separated from the water receiving part by the water seal. The water receiving part is internally provided with a vertical channel and a horizontal channel. The water inlet part is provided with a vertical through hole structure which is integrally formed with the vertical pipe part and is parallel to the axis of the vertical pipe part. The application has the advantages that water can be evenly inducted along the inner wall circumference of the pipe, better water receiving effect is achieved, the water supply pipe is prevented from being polluted, the overall layout of the water supply pipe is simple and compact, and the construction and installation are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering-indoor drainage engineering, and particularly relates to a water inlet device and a water trap water supplement system. BACKGROUND

[0002] In recent years, with the improvement of people's living standards, there is a higher pursuit of the sanitary environment of residence, and the polluted gas, virus, bacteria and the like in the drainage pipeline enters the indoor through the destroyed water seal, which is a main factor affecting the indoor air quality and destroying the living environment.

[0003] The main factor causing the destruction of the water seal is that the frequency of use of sanitary appliances is low, for example, the balcony floor drain is rarely used, and the water seal cannot be replenished for a long time, and is destroyed due to evaporation and drying, at this time, the harmful gas in the outdoor septic tank will overflow from the floor drain into the indoor through the pipeline.

[0004] There is a technology on the market, that is, water is supplemented to the water seal of each layer pipeline, a tee fitting is added on the roof venting pipeline of the drainage pipe on the roof, water is periodically injected into the drainage pipeline from the horizontal branch pipe, and a water collecting device is arranged below each layer to supplement water to the water seal of each layer.

[0005] A water collecting device is designed on each layer of drainage vertical pipe, and the drainage in the vertical pipe is collected and introduced to the water trap, such as the water trap water supplement system disclosed in patent CN115059151A, which discloses a water trap water supplement system, comprising a drainage vertical pipe and a plurality of water seal devices with a water trap a, the water seal devices are multiple, the multiple water seal devices are respectively communicated with the drainage vertical pipe and are arranged along the extension direction of the drainage vertical pipe, characterized in that: the drainage vertical pipe is further provided with the gradually expanding vertical pipe of claim 1 or 2 corresponding to the water seal device, the upper connecting section and the lower connecting section of the gradually expanding vertical pipe are connected with the drainage vertical pipe, the pipe joint of the gradually expanding vertical pipe is communicated with the water trap a through the water collecting pipe, and the top of the drainage vertical pipe is further provided with a long-acting water supplement device for supplementing water to the drainage vertical pipe.

[0006] The patent has the following problems in actual implementation: the water inlet pipe and the water distribution pipeline need special fixing supports, the pipeline layout is complex, the water inlet of the horizontal branch pipe is side water inlet, when the water flow enters the vertical pipe, when the water flow is large, the water flow is suspended in the form of water tongue, when the water flow is small, the water flow is in the form of local flow along the wall, the lower water collector has poor water collection effect, the gradually expanding vertical pipe (accessory) can only be installed above the drain tee, each layer needs to be connected with a water supplement pipe from the gradually expanding vertical pipe to the water trap for water supplement, the water supplement pipe and the drain horizontal branch pipe occupy a large space, seriously affecting the use effect, a large step is formed at the inner wall of the water storage ring, the water splash is easy to splash during the wall-attached falling of the drain, the air circulation in the pipe is disturbed, the air pressure in the pipe fluctuates greatly, the user's floor drain returns smell, the connecting pipe is easy to be blocked, the dirt splashed on the water storage ring is easy to cause the connecting pipe to be blocked, the water supplement pipe can only be installed above the horizontal branch pipe, the installation slope is not easy to adjust, and the space is occupied. SUMMARY

[0007] In order to solve the above technical problems, realize the water trap water supplement function of the water supply and drainage pipe accessory, and realize the uniform water inlet along the inner wall of the pipeline, achieve the better water collection effect of the lower layer, and avoid the pollution of the water supply pipe, the overall simple and compact water supply pipeline layout is convenient for construction and installation.

[0008] The application discloses a water inlet device and a water trap water supplement system, which comprises a vertical pipe part, a water receiving part and a water inlet part.

[0009] As preferred, the vertical pipe part comprises a cover and a main body, the cover is provided with an upper socket, the lower end of the cover is provided with a sleeve structure, the sleeve structure is embedded with the annular water seal structure of the main body to form a water seal, the vertical pipe part is separated from the water receiving part by the water seal, the main body is provided with an intermediate body, the lower end of the intermediate body is provided with a lower socket, and the upper socket, the intermediate body and the lower socket are coaxially arranged.

[0010] As preferred, the annular water inlet gap is located between the upper socket and the intermediate body, the gap height of the annular water inlet gap is uniform along the circumferential direction, the water flow is uniformly circumferential, and the water flow falls when the water flow is large.

[0011] As preferred, the upper end of the water receiving part is provided with a heightening pipe, the bottom of the heightening pipe is provided with a support partition plate, the upper surface of the support partition plate is provided with a filter screen, the upper end of the heightening pipe is provided with a water inlet, the lower end of the heightening pipe is provided with a heightening pipe socket, and the heightening pipe is connected with the horizontal channel through the heightening pipe socket.

[0012] As preferred, the water receiving part is provided with an access hole away from one end of the vertical pipe part, and the access hole further comprises a cover and a sealing ring, which are fixed by screwing.

[0013] As preferred, the horizontal channel is integrally formed with the main body of the vertical pipe part, and the horizontal channel is communicated with the annular water seal structure, which can achieve better water collecting effect, compact installation, small space occupation, avoid blockage of the water supply pipe, avoid splashing of water on the inner wall of the pipe, and avoid pollution of the water supply pipe.

[0014] As preferred, the upper and lower ends of the water inlet part are respectively provided with an upper socket and a lower socket, the inner diameter of the upper socket is matched with the outer diameter of the water supply pipe, and the inner diameter of the lower socket is matched with the outer diameter of the water supply pipe.

[0015] A water trap water supplementing system comprises a vertical drainage pipe, a water supply device, a water taking device, and a water supplementing device, and further comprises a water inlet device, the upper and lower ends of the water inlet device are connected with the vertical drainage pipe, and the water supply device is communicated with the lower end socket of the water inlet part of the water inlet device.

[0016] As preferred, the water supply device further comprises a water supply pipe and an automatic control valve and a manual valve, the water supply pipe is connected with a tap water pipe, passes through the vertical hole structure of the water inlet device, and then enters the water inlet of the water receiving part, and the manual valve is arranged upstream of the automatic control valve.

[0017] As preferred, the water taking device and the water supplementing device are multiple, the upper and lower ends of the multiple water taking devices are respectively communicated with the vertical drainage pipe and are arranged along the extension direction of the vertical drainage pipe, and the water supplementing device is communicated with the water taking device.

[0018] The present application has the advantages of uniform water inlet along the circumferential direction of the pipe wall, good water collecting effect, pollution prevention of the water supply pipe, compact layout of the water supply pipe, and convenient installation. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings needed to be used in the embodiments or the background art description will be briefly introduced as follows. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the provided drawings.

[0020] Figure 1 It is a structural schematic view of the water inlet device of the present application.

[0021] Figure 2 It is a sectional view of the water inlet device of the present application.

[0022] Figure 3 Structure diagram of water storage bend water replenishing system of the present application;

[0023] Figure 4 Structure diagram of another embodiment of water storage bend water replenishing system of the present application.

[0024] In the figure: 1, riser section, 2, water receiving section, 3, water inlet section, 11, annular water inlet gap, 12, annular water seal structure, 13, upper socket, 14, intermediate body, 15, lower socket, 16, cover, 17, main body, 21, water inlet, 22, heightening pipe, 23, heightening pipe socket, 24, vertical channel, 25, horizontal channel, 26, access hole, 27, support partition, 28, filter screen, 31, through hole structure, 32, upper socket, 33, water supply pipe, 34, fitting, 35, water outlet of water supply pipe, 36, upper socket, 100, water supply device, 101, water supply pipeline, 102, automatic control valve, 103, manual valve, 110, sleeve structure, 200, water inlet device, 300, water taking device, 400, water replenishing device. DETAILED DESCRIPTION

[0025] 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 work fall within the scope of protection of the present application.

[0026] Embodiment 1:

[0027] Reference Figure 1 and Figure 2 The present application discloses a water inlet device: including riser section 1 and water receiving section 2 and water inlet section 3, the riser section 1 has annular water inlet gap 11 arranged along the riser inner wall circumference and has annular water seal structure 12 distributed along the riser circumference, water outlet of water inlet gap 11 and annular water seal structure 12 is communicated, in fact, the water outlet of water seal is formed, water inlet gap 11 is separated from water receiving section 2 by water seal in water seal structure 12, which can prevent gas from flowing; water receiving section 2 is a inverted T-shaped channel structure, water inlet 21 is the upper mouth of a heightening pipe 22, the direction is vertically upward, the lower mouth of heightening pipe 22 is connected with horizontal channel through heightening pipe socket 23, which can be bonded by glue, the water outlet is horizontal channel and is communicated with annular water seal structure 12; water inlet section 3 has vertical through hole structure 31 and is integrally formed with riser section, which is parallel to the riser axis.

[0028] The stand pipe part 1 includes a cover 16 and a main body 17, and the two components are connected through a main body connecting part. The stand pipe part 1 is sequentially provided with an upper socket 13, an intermediate body 14 and a lower socket 15 from top to bottom, and the three parts are coaxially arranged and sequentially communicated. The upper socket 13 has an upper part of the cover 16, and the lower part of the cover 16 has a downwardly extending sleeve structure 110 which is assembled into the water seal structure 12 of the main body 17 to form a water seal. An annular water inlet gap 11 is arranged along the circumference of the inner wall of the stand pipe between the upper socket 13 and the intermediate body 14, and the gap height is uniform along the circumferential direction.

[0029] The water receiving part 2 has a whole inverted T-shaped channel structure, including a vertical channel 24 and a horizontal channel 25. The horizontal channel 25 is integrally formed with the main body 17 of the stand pipe part and is communicated with the annular water seal structure 12. The other end of the horizontal channel 25 is connected with the water receiving part cover 26 through a socket joint. The water inlet 21 is the upper opening of the heightening pipe 22, and the direction is vertically upward. The lower opening of the heightening pipe 22 is connected with the horizontal channel 25 through the heightening pipe socket joint 23. The bottom of the heightening pipe socket joint 23 has at least one support partition 27, and the support partition 27 has a filter screen 28 on the upper surface, which can prevent large particles of garbage or larger organisms from entering the annular water seal structure 12.

[0030] The water receiving part cover has an end face with an inspection opening 26. The inspection opening 26 is located at the bottom of the horizontal channel 25, and is composed of a cover and a sealing ring. The sealing is realized through threaded connection, and the cover can be removed for maintenance.

[0031] The water inlet part 3 has a vertical through hole structure 31 which is integrally formed with the stand pipe part and is parallel to the axis of the stand pipe part. The upper end of the vertical through hole structure 31 has a water supply upper socket joint 32 which can be connected with a water supply pipe 33 through a socket joint. The water supply pipe is connected through a fitting 34 to turn the water outlet 35 of the water supply pipe vertically downward and above the water inlet 21 of the water receiving part, and has an air gap to avoid contact between the water supply pipe and the drain pipe. The lower end of the vertical through hole structure 31 has a water supply lower socket joint 36 which can be connected with the introduced water supply pipe.

[0032] Example 2

[0033] Reference Figure 3The water storage bend water replenishing system comprises a water supply device 100, a water inlet device 200, a water taking device 300 and a water storage bend water replenishing device 400, the water supply pipeline is integrated on the water inlet device, is laid close to the drainage vertical pipe in parallel, and an air gap is arranged between the water supply outlet and the water inlet of the water inlet device; the water inlet device is provided with an annular water inlet gap 11 along the inner wall circumference of the vertical pipe and an annular water seal structure 12 distributed along the circumference of the vertical pipe; the water taking device 300 is provided with an annular water collecting groove, vertical gratings are uniformly distributed along the inner circumference of the annular water collecting groove, the lower end of the vertical grating has a gap with the bottom surface of the water collecting groove, and the inner bottom surface of the water collecting interface is arranged horizontally and is lower than the bottom surface of the water collecting groove and higher than the upper edge of the horizontal branch pipe. The water storage bend water replenishing device is provided with a water replenishing connecting port which is arranged in parallel with the water collecting interface of the water taking device in the horizontal direction.

[0034] The water supply device 100 comprises a water supply pipeline 101, an automatic control valve 102 and a manual valve 103, characterized in that the water supply pipeline 101 is connected to a tap water pipeline, enters the water inlet 221 of the water receiving part after passing through the vertical through hole structure 231 of the water inlet device 200, the automatic control valve 102 can set the automatic cycle opening and closing interval time of the valve, and the manual valve 103 is arranged upstream of the automatic control valve.

[0035] The water inlet device 200 comprises a vertical pipe part 1, a water receiving part 2 and a water inlet part 3, the vertical pipe part 1 is provided with an annular water inlet gap 11 along the inner wall circumference of the vertical pipe and an annular water seal structure 12 distributed along the circumference of the vertical pipe, the water inlet gap 11 is communicated with the water outlet end of the annular water seal structure 12, actually forms the water outlet of the water seal, the water inlet gap 11 is separated from the water receiving part 2 by the water seal in the water seal structure 12 and can prevent gas from flowing; the water receiving part 2 is a reverse T-shaped channel structure, the water inlet 221 is the upper opening of a section of raised pipe 22, the direction is vertically upward, the lower opening of the raised pipe 22 is connected with the horizontal channel through the raised pipe socket 23 and can be bonded by glue, and the water outlet is a horizontal channel and is communicated with the annular water seal structure 12; the water inlet part 3 has a vertical through hole structure 31 which is integrally formed with the vertical pipe part and is parallel to the vertical pipe axis.

[0036] The vertical pipe part 1 comprises a cover 16 and a main body 17, the two components are connected through the main body connecting part, the vertical pipe part 1 is sequentially provided with an upper socket 13, an intermediate body 14 and a lower socket 15 from top to bottom, the three parts are coaxially arranged and sequentially communicated; the upper socket 13 has an upper part of the cover 16, the lower part of the cover has a downwardly extending sleeve structure 110 which is assembled into the water seal structure 12 of the main body 17 and forms a water seal; the upper socket 13 is provided with an annular water inlet gap 211 along the inner wall circumference of the vertical pipe between the upper socket 13 and the intermediate body 14, and the gap height is uniform along the circumferential direction.

[0037] The water receiving part 2 is in the shape of an inverted T channel structure, including a straight channel 24 and a horizontal channel 25, the horizontal channel 25 is integrally formed with the stand pipe part main body 17 and is in communication with the annular water seal structure 12, the other end of the horizontal channel 25 is connected with the water receiving part cover through a socket connection; the water inlet 21 is the upper opening of the heightening pipe 22, the direction is vertically upward, the lower opening of the heightening pipe 22 is connected with the horizontal channel 25 through a heightening pipe socket 23, the bottom of the heightening pipe socket 23 is provided with at least one supporting partition 27, the supporting partition is provided with a filter screen 28 on the upper surface, which can prevent large garbage or large organisms from entering the annular water seal structure 12.

[0038] The water receiving part cover is provided with an inspection opening 26 on the end surface, the inspection opening 27 is located at the bottom of the horizontal channel 25, the inspection opening is composed of a cover and a sealing ring, and the sealing is realized through a threaded connection and the cover can be disassembled for inspection.

[0039] The water inlet part 3 is provided with a vertical through hole structure 31, which is integrally formed with the stand pipe part and is parallel to the axis of the stand pipe part, the upper end of the vertical through hole structure 31 is provided with a water supply upper socket 32, which can be connected with a water supply pipe 33 through a socket connection, the water supply pipe is connected through a fitting 34, the water outlet 35 of the water supply pipe is turned vertically downward and is located above the water inlet 21 of the water receiving part and has an air gap, so as to avoid the contact between the water supply pipe and the drain pipe. The lower end of the vertical through hole structure 31 is provided with a water supply lower socket 36, which can be connected with the introduced water supply pipe.

[0040] The water taking device 300 includes an upper socket 32, a water collecting part, a water collecting interface, a transition connecting part, a horizontal branch pipe and a lower socket 36, which are composed of six functional parts, the upper socket 32, the water collecting part, the transition connecting part and the lower socket 36 are arranged on the same axis and are sequentially communicated, the device is assembled by an upper body 370 and a lower body 380, the upper body and the lower body are connected through a socket connecting part, and the total height of the product (from the upper edge of the upper socket 32 to the lower edge of the lower socket 36) is not greater than 200 mm.

[0041] The upper body includes the upper socket 32, the connecting part of the water collecting part and a vertical grid, which are made of plastic and are integrally formed through injection molding.

[0042] The lower body includes the water collecting interface, the transition connecting part, the horizontal branch pipe and the lower socket, which are made of plastic and are integrally formed through injection molding.

[0043] The upper socket 32 is connected with a pipe socket of the same specification, the bottom is provided with an upper socket limiting step for limiting the insertion depth of the drain stand pipe. The lower part of the upper socket limiting step is uniformly provided with a vertical grid.

[0044] The water collecting part is formed by the upper body and the lower body connection part, and forms a water storage tank. The vertical grating is uniformly distributed in the water storage tank. When the wall flow passes through the grating, part of the water flow will pass through the grating into the water storage tank. The grating can filter large particles to prevent them from entering the water storage tank and avoid clogging the water collecting interface. The upper end of the vertical grating is integrally connected with the upper socket limiting step, and the lower end has a gap with the bottom surface of the water storage tank, and the gap width is 2mm-5mm, which is used for the water flow of the drain pipe to enter the water storage tank. The gap also has the effect of filtering large particles.

[0045] The bottom of the annular water storage tank has a water storage tank bottom surface, which is an annular planar structure. The inner hole diameter of the water storage tank bottom surface is the same as that of the drain vertical pipe, and the lower end of the vertical grating forms a misaligned step. The misaligned step has an upward annular protrusion, which can intercept the wall flow of the vertical pipe inner wall and enter the water storage tank through the gap 322.

[0046] The water collecting interface is horizontally arranged and is in communication with the water storage tank. The position of the water collecting interface is lower than that of the water storage tank and higher than that of the horizontal branch pipe. The inner bottom surface is lower than the bottom surface of the water storage tank and higher than the upper edge of the horizontal branch pipe.

[0047] The vertical grating has a gap width of 2mm-5mm and a tapered inner surface. The upper edge diameter is the same as the inner diameter of the bottom step of the upper socket, and the lower edge diameter is 6mm-16mm larger than the upper edge diameter. The horizontal branch pipe port is integrally formed with the transition connection part and is in communication with the transition part axis at an angle of 90°-92°. The communication part has a water-following circular arc structure to ensure smooth flow of the horizontal branch pipe into the vertical pipe.

[0048] The lower socket 36 has an inner diameter that is connected with the socket of the same specification pipe material. The upper part has a lower socket limiting step for limiting the insertion depth of the drain vertical pipe. The limiting step is integrally formed with the transition connection part.

[0049] The water storage bend water supplementing device 400 includes a wastewater inlet, a water storage part, an inspection port, a water supplementing connection port, and a horizontal branch pipe discharge port, which are five functional parts. The wastewater inlet, the water storage part, and the horizontal branch pipe discharge port are in sequence. The lowest point of the upper edge in the water storage part channel is lower than the lowest point of the lower edge in the horizontal branch pipe discharge port channel. The water supplementing connection port is in communication with the water storage part. The water supplementing connection port is in the horizontal direction of the axial bearing, and the internal channel of the water storage part is perpendicular.

[0050] The wastewater inlet has an inner diameter that is connected with the socket of the same specification pipe material. The bottom has an inlet limiting step for limiting the insertion depth of the drain vertical pipe. The inlet limiting step 411 is integrally connected with the water storage part.

[0051] The water storage part includes a water storage vertical part and a water storage inclined part. Both the water storage vertical part and the water storage inclined part are circular channel structures, and the axis angle intersects at a certain degree. The internal intersection point forms the lowest point of the upper edge in the channel.

[0052] The water replenishing connector can be connected with a pipe or a fitting with an outer diameter of 20 mm, has a connector limiting step for limiting the insertion depth, and is connected with the upper side of the water storage inclined part to have a connecting channel, so that water from the water replenishing connector can flow into the water storage part 420.

[0053] The horizontal branch pipe discharge outlet is horizontally arranged and forms a 135-degree angle with the water storage inclined part, is connected with the water storage inclined part through a socket, and can be connected with a pipe with an outer diameter of 50 mm, has a discharge outlet limiting step for limiting the insertion depth.

[0054] Embodiment 3

[0055] Referring to Figure 4 The application discloses another water replenishing system for a water storage bend, which comprises a water supply device, a water inlet device, a water outlet device and a water replenishing device for a water storage bend.

[0056] According to the disclosure and teaching of the above description, those skilled in the art can also make appropriate changes and modifications to the above embodiments. Therefore, the application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the application should fall within the protection scope of the claims of the application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the application.

Claims

1. A water inlet device, comprising a riser section (1), a water receiving section (2), and a water inlet section (3), characterized in that: The riser section (1) is provided with an annular water inlet gap (11) and an annular water seal structure (12) arranged along the circumference of the inner wall of the riser. The annular water inlet gap (11) is connected to the water outlet end of the annular water seal structure (12) and is separated from the water receiving section (2) by the water seal. The water receiving part (2) is provided with a vertical channel (24) and a horizontal channel (25); The water inlet (3) is provided with a vertical through hole structure (31), which is integrally formed with the riser (1) and the axis of the through hole structure (31) is parallel to that of the riser (1). The upper end of the through hole structure (31) has a water supply socket (32) that is connected to the water supply pipe (33). The water supply pipe (33) is connected by fittings (34) to turn the water supply pipe outlet (35) vertically downward, located above the water inlet (21) of the water receiving part, and has an air gap. The horizontal channel (25) is integrally formed with the main body of the riser part (1), and the horizontal channel (25) is connected to the annular water seal structure (12).

2. The water inlet device according to claim 1, characterized in that, The riser section (1) includes a cover (16) and a main body (17). The cover (16) is provided with an upper bearing port (13). The lower end of the cover (16) is provided with a sleeve structure (110). The sleeve structure (110) and the annular water seal structure (12) of the main body (17) are interlocked to form a water seal. The riser section (1) and the water receiving section (2) are separated by the water seal. The main body (17) is provided with an intermediate body (14). The lower end of the intermediate body (14) is provided with a lower bearing port (15). The upper bearing port (13), the intermediate body (14) and the lower bearing port (15) are coaxially arranged.

3. The water inlet device according to claim 2, characterized in that, The annular water inlet gap (11) is located between the upper bearing (13) and the intermediate body (14). The gap height of the annular water inlet gap (11) is uniform along the circumferential direction. The cover (16) and the main body (17) are connected by the main body connecting part. The riser part (1) consists of the upper bearing (13), the intermediate body (14) and the lower bearing (15) from top to bottom. The three parts are coaxially arranged and connected in sequence. The upper bearing (13) is located on the upper part of the cover (16). The lower part of the cover (16) has a downwardly extending sleeve structure (110). After assembly, it extends into the water seal structure (12) of the main body (17) to form a water seal.

4. The water inlet device according to claim 1, characterized in that, The water receiving part (2) is provided with a booster tube (22) at the upper end, a support partition (27) at the bottom of the booster tube (22), a filter screen (28) on the support partition (27), a water inlet (21) at the upper end of the booster tube (22), a booster tube socket (23) at the lower end of the booster tube (22), and the booster tube (22) and the horizontal channel (25) are connected by the booster tube socket (23). The water receiving part (2) is an inverted T-shaped channel structure, and the water inlet (21) is the upper opening of a section of the booster tube, which is vertically upward.

5. The water inlet device according to claim 2, characterized in that, The water receiving part (2) is provided with an inspection port (26) at one end away from the riser part (1). The inspection port (26) also includes a cover and a sealing ring. The cover and the sealing ring are fixed by threaded connection. The lower end of the vertical through hole structure (31) has a water supply socket (36) that is connected to the introduced water supply pipe.

6. The water inlet device according to claim 1 or 2, characterized in that, The horizontal channel (25) is the water outlet, and the other end of the horizontal channel (25) is connected to the water receiving cover (26) by a socket.

7. The water inlet device according to claim 1, characterized in that: The water inlet (3) is provided with an upper socket (32) and a lower socket (36) at its upper and lower ends, respectively. The inner diameter of the upper socket (32) is adapted to the outer diameter of the water supply pipe (33), and the inner diameter of the lower socket (36) is adapted to the outer diameter of the water supply pipe (101).

8. A water trap replenishment system, comprising a drainage riser, a water supply device (100), a water intake device (300), and a water replenishment device (400), characterized in that: The water trap water replenishment system also includes a water inlet device as described in any one of claims 1, 2, 3, 4, 5 or 6, wherein the upper and lower ends of the water inlet device (200) are connected to the drain riser, and the water supply device (100) is connected to the lower end socket (36) of the water inlet part (3) of the water inlet device (200). The water intake device (300) is equipped with an annular water collection trough, with vertical grids evenly distributed around the inner circumference of the water collection trough. The lower end of the vertical grids has a gap with the bottom surface of the water collection trough. The water collection interface is set horizontally, with the inner bottom surface of the water collection interface lower than the bottom surface of the water collection trough and higher than the upper edge of the horizontal branch pipe. The water storage bend water replenishment device has a water replenishment connection port with an axial direction of horizontal and is set parallel to the water collection interface of the water intake device (300).

9. A water trap replenishment system according to claim 8, characterized in that: The water supply device (100) also includes a water supply pipe (101), an automatic control valve (102), and a manual valve (103). The water supply pipe (101) is connected to the tap water pipe, passes through the vertical through hole structure (31) of the water inlet device (200), and enters the water inlet (21) of the water receiving part (2). The manual valve (103) is located upstream of the automatic control valve (102). The water supply pipe (101) is integrated on the water inlet device (200) and laid parallel to the drainage riser. There is an air gap between the water supply outlet and the water receiving port of the water inlet device (200).

10. A water trap water replenishment system according to claim 8, characterized in that: There are multiple water intake devices (300) and water replenishment devices (400). The upper and lower ends of the multiple water intake devices (300) are respectively connected to the drainage riser and are spaced apart along the extension direction of the drainage riser. The water replenishment device (400) is connected to the water intake device (300). The water intake device (300) is assembled from two parts: an upper body (370) and a lower body (380). The upper body (370) and the lower body (380) are connected by a socket connection. The bottom of the annular water trough has a bottom surface, which is an annular planar structure. The diameter of the inner annular hole on the bottom surface of the water trough is the same as that inside the drainage riser. It forms a staggered step with the lower end of the vertical grid. The staggered step has an upward annular protrusion.

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