Horizontal floor drain

Abstract

The utility model relates to the technical field of drainage, in particular to a horizontal floor drain which comprises a shell and a plurality of first water inlets formed in the edge area of the shell, a cover plate is arranged at the top of the shell, a water outlet is formed in the bottom end of the shell, and a plurality of drainage channels are formed between the shell and the cover plate. The drainage channels are communicated with at least one first water inlet and the water outlet, a check valve is arranged in each drainage channel, and the check valves are used for opening the drainage channels under the action of water flow or closing the drainage channels under the action of gravity. The height of the drainage channel formed between the cover plate and the shell is increased so that the check valve can be arranged in the drainage channel, the probability that the floor drain is blocked due to the fact that the height of the drainage channel is too small is reduced, the deodorization effect of the floor drain is more reliable through the check valve, the check valve can close the drainage channel under the action of gravity, and therefore the floor drain is more sanitary. Odor, germs, crawlers and the like in a sewer are difficult to enter a room under the blocking of the check valve.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage, in particular to a horizontal floor drain. Background Art

[0002] At present, the common floor drain on the market is a vertical structure, and its water inlet and water outlet are basically in the same straight line and the connection line of the two is perpendicular to the ground, and is limited to the specification of the vertical floor drain housing 10cm*10cm, so the water inlet of the floor drain is relatively small, and for places with a large drainage area (such as bathrooms or public bathrooms with a large area), the ground drainage speed can only be improved by increasing the number of floor drains. A kind of horizontal floor drain has also appeared on the market, which forms multi-point drainage on the ground by increasing the housing and arranging multiple water inlets at the edge of the housing, thereby improving the drainage speed. However, the deodorization of the existing horizontal floor drain is generally achieved by cooperating with the vertical floor drain core, such as the invention patent CN213477106U, which is deodorized by the "V" shaped structure formed by the first sealing pad and the second sealing pad at the lower end of the base, and the overall height of the floor drain is increased. Secondly, the spacing between the inner plate and the receiving plate is small, and the drain net arranged between the inner plate and the receiving plate is easy to accumulate debris and block the drainage channel of the floor drain, affecting the drainage of the floor drain. Summary of the invention

[0003] The utility model aims to provide a horizontal floor drain to solve the problem that the existing horizontal floor drain is easy to be blocked.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a horizontal floor drain, comprising a shell and a plurality of first water inlets arranged in the edge area of ​​the shell, a cover plate is provided on the top of the shell, a water outlet is provided at the bottom of the shell, a plurality of drainage channels are formed between the shell and the cover plate, the drainage channels are connected to at least one of the first water inlet and the water outlet, a check valve is provided in each of the drainage channels, the check valve is used to open the drainage channel under the action of water flow or to close the drainage channel under the action of gravity.

[0005] In one embodiment, the inner wall of the shell is provided with a water retaining portion located in the drainage channel, the water retaining portion is provided with a drainage port, the check valve includes a valve body portion and a rotating shaft portion which are integrally connected, a lower arc groove is provided at the top of the water retaining portion, the rotating shaft portion is rotatably arranged in the lower arc groove, thereby forming the check valve rotatably arranged in the drainage channel, the rotating shaft portion drives the valve body portion to open the drainage port to open the drainage channel or close the drainage port to close the drainage channel.

[0006] In one embodiment, the cover plate is provided with a water retaining flange abutting against the water retaining portion, and the water retaining flange is provided with an upper arc groove, and the upper arc groove cooperates with the lower arc groove to form a rotation limiting structure of the rotating shaft portion, and the water retaining flange cooperates with the water retaining portion and the check valve to form a partition structure of the drainage channel.

[0007] In one embodiment, the first water inlet is formed by at least one of a through hole provided on the cover plate, a gap between the cover plate and the shell, and an opening on a side wall at an end of the cover plate.

[0008] In one embodiment, the cover plate is provided with a second water inlet, and the second water inlet is used for connecting to a drain pipe.

[0009] In one embodiment, a filter screen is further included, and the filter screen is arranged in the drainage channel, or the filter screen is arranged at the first water inlet and the second water inlet on the cover plate. When the filter screen is arranged in the drainage channel, the inner side wall of the shell is provided with a plug-in groove, the filter screen is plugged into the plug-in groove, and the filter screen is located on the side of the check valve away from the water outlet.

[0010] In one embodiment, an adjusting foot is provided at the bottom of the shell, and the adjusting foot is used to adjust the horizontality of the shell.

[0011] In one embodiment, the adjustment foot includes a first threaded member and a second threaded member that are threadedly connected, and the shell is provided with a receiving hole that is open to the bottom, and the receiving hole includes a first receiving section and a second receiving section, the first receiving section is used to receive the first threaded member and the first threaded member is fixedly connected to the shell, and the second receiving section is used to receive the second threaded member, and the height of the adjustment foot is adjusted by the threaded connection between the first threaded member and the second threaded member, thereby adjusting the horizontality of the shell, and the adjustment foot is isolated from the drainage channel by the side wall of the receiving hole.

[0012] In one embodiment, the shell is in the shape of a long rectangle, an angle or a "T" shape.

[0013] In one embodiment, a floor drain core is provided under the shell, the floor drain core is connected to the water outlet, and the floor drain core is provided with a water seal anti-odor structure, so that the floor drain core cooperates with the check valve to form a double anti-odor mechanism for the floor drain.

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

[0015] 1. The utility model increases the height of the drainage channel formed between the cover plate and the shell to enable a check valve to be set in the drainage channel, thereby reducing the probability of floor drain blockage due to the small height of the drainage channel. The check valve makes the deodorization effect of the floor drain more reliable.

[0016] 2. The check valve adopts a rotating structure, which can be pushed open by water flow to allow the floor drain to drain smoothly. It can also close the drain outlet of the drainage channel under the action of gravity to achieve the purpose of stopping the return flow and preventing odor of the floor drain. This mechanical valve can also prevent reptiles or germs in the sewer from spreading to the ground.

[0017] 3. The first water inlet is used for floor drainage, and the second water inlet is connected to the drainage pipe and can be used for drainage of sinks, washing machines and other washing equipment, thereby combining floor drainage and water pipe drainage in one floor drain.

[0018] 4. The adjusting feet arranged at the bottom of the shell can adjust the overall levelness of the floor drain, and can compensate for the inclination of the floor drain caused by the uneven ground cushion layer. The adjusting feet are threaded structures, making the adjustment more convenient and quick.

[0019] 5. The shape of the shell and the water inlet are designed in various ways. The corresponding floor drain is selected according to the different structures of the ground, so that the floor drain of the utility model can adapt to various types of drainage scenarios.

[0020] 6. The check valve and the floor drain core can form a double anti-odor mechanism, and the water seal anti-odor has better airtightness. Even if the check valve cannot completely close the drain outlet due to debris stuck in the check valve, the water seal anti-odor structure can also ensure the anti-odor effect of the floor drain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereogram of embodiment 1 of the utility model.

[0022] Figure 2 It is a stereogram of another viewing angle of embodiment 1 of the utility model.

[0023] Figure 3 It is a left side view of embodiment 1 of the present utility model.

[0024] Figure 4 It is a top view of embodiment 1 of the utility model.

[0025] Figure 5 yes Figure 4 AA section view.

[0026] Figure 6 It is a three-dimensional diagram of Example 1 of the utility model without a cover plate.

[0027] Figure 7 It is a three-dimensional diagram of the cover plate of Example 1 of the utility model.

[0028] Figure 8 yes Figure 4 BB cross-sectional view.

[0029] Fig. 9This is a state diagram of installing ceramic tiles in Example 1 of the utility model.

[0030] Fig.10 It is a schematic diagram of the use status of Example 1 of the utility model.

[0031] Fig.11 It is a stereogram of embodiment 2 of the present utility model.

[0032] Fig.12 It is a cross-sectional view of Example 2 of the present utility model.

[0033] Fig.13 It is a stereogram of embodiment 3 of the present utility model.

[0034] Fig.14 It is a three-dimensional diagram of Example 3 of the utility model without a cover plate.

[0035] Fig.15 It is a stereogram of embodiment 4 of the present utility model.

[0036] Fig.16 It is a three-dimensional diagram of Example 4 of the utility model without the cover plate and the filter screen.

[0037] Fig.17 It is a three-dimensional diagram of Example 5 of the utility model without a filter screen.

[0038] Wherein: 1 shell, 11 water retaining part, 111 drainage outlet, 112 lower arc groove, 12 plug-in groove, 13 accommodating hole, 131 first accommodating section, 132 second accommodating section, 2 cover plate, 21 water retaining flange, 211 upper arc groove, 22 through hole, 23 decorative floor rail, 3 check valve, 31 valve body part, 32 rotating shaft part, 33 sealing sheet, 4 filter screen, 5 floor drain core.

[0039] 10 first water inlet, 20 water outlet, 30 drainage channel, 40 second water inlet.

[0040] 100 tiles, 200 cushioning layers. DETAILED DESCRIPTION

[0041] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0042] See also Figures 1 to 17As shown, the utility model discloses a horizontal floor drain, comprising a shell 1 and a plurality of first water inlets 10 arranged in the edge area of ​​the shell 1, a cover plate 2 is provided on the top of the shell 1, a water outlet 20 is provided at the bottom end of the shell 1, a plurality of drainage channels 30 are formed between the shell 1 and the cover plate 2, the drainage channels 30 are connected to at least one first water inlet 10 and the water outlet 20, and a check valve 3 is provided in each drainage channel 30, and the check valve 3 is used to open the drainage channel 30 under the action of water flow or close the drainage channel 30 under the action of gravity.

[0043] Among them, the edge area of ​​the shell 1 refers to the area close to the edge of the shell and away from its center, so that the distance between the first water inlets 10 is farther, the arrangement range of the first water inlets 10 is expanded, the path of ground drainage is shortened, and the drainage speed is increased.

[0044] The water flowing into each first water inlet 10 is discharged to the water outlet 20 through the corresponding drainage channel 30, and then discharged into the sewer through the water outlet 20. The height of the drainage channel 30 formed between the cover plate 2 and the housing 1 is increased to enable a check valve 3 to be set in the drainage channel 30. Any of the odor, germs, and reptiles in the sewer may enter the room from the water outlet 20 through any drainage channel 30 and the corresponding first water inlet 10. In order to prevent any of the odor, germs, and reptiles in the sewer from entering the room, a check valve 3 is set in each drainage channel 30, and the check valve 3 can open the drainage channel 30 under the action of water flow or close the drainage channel 30 under the action of gravity. When water flows through, the water flow overcomes the gravity of the check valve 3 and drives the check valve 3 to open. At this time, the direction of the water flow is from the first water inlet 10 to the water outlet 20, so it is difficult for the odor, germs, reptiles, etc. in the sewer to enter the room against the water flow. When the water flow stops, the check valve 3 closes the drainage channel 30 under the action of gravity, and the odor, germs, reptiles, etc. in the sewer are difficult to enter the room due to the obstruction of the check valve 3.

[0045] In addition, since the check valve 3 is provided in the drainage channel 30, the height of the drainage channel 30 will be higher than that of the prior art. This is because the thickness of the ground is limited. In order to match the floor drain core of the vertical floor drain, the height of the drainage channel 30 of the prior art horizontal floor drain needs to be compressed accordingly; while the check valve 3 of the utility model can meet the deodorization function of the floor drain, so there is no need to reserve space to install the floor drain core, and the height of the drainage channel 30 can be increased accordingly. The increase in the height of the drainage channel 30 will increase the cross-sectional area of ​​the drainage channel 30 accordingly, and even if a filter net for intercepting debris is provided in the drainage channel 30, it will not be easily blocked.

[0046] See also Figures 5 and 6As shown, the inner wall of the shell 1 is provided with a water retaining portion 11 located in the drainage channel 30, and the water retaining portion 11 is provided with a drainage port 111. The check valve 3 includes a valve body portion 31 and a rotating shaft portion 32 that are integrally connected. A lower arc groove 112 is provided at the top of the water retaining portion 11. The rotating shaft portion 32 is rotatably set in the lower arc groove 112 to form a check valve 3 that is rotatably set in the drainage channel 30. The rotating shaft portion 32 drives the valve body portion 31 to open the drainage port 111 to open the drainage channel 30 or to close the drainage port 111 to close the drainage channel 30.

[0047] The rotating shaft portion 32 is arranged at the top of the water retaining portion 11, and the water flows from the bottom of the water retaining portion 11 under the action of gravity. The position where the water flows on the valve body portion 31 is close to the position of the valve body portion 31 away from the rotating shaft portion 32, so that the moment of the water flow acting on the check valve 3 can be increased, making the check valve 3 easier to be pushed open by the water flow. In addition, the rotating shaft portion 32 of the check valve 3 is arranged in the arc groove 111 at the top of the water retaining portion 11, and the check valve 3 can fully open the drain port 111 when rotating, thereby increasing the drainage diameter of the drain port 111 and improving the drainage speed.

[0048] See also Figures 7 and 8 As shown, the cover plate 2 is provided with a water retaining flange 21 abutting against the water retaining portion 11, and the water retaining flange 21 is provided with an upper arc groove 211, and the upper arc groove 211 cooperates with the lower arc groove 112 to form a rotation limiting structure of the rotating shaft portion 32, and the water retaining flange 21 cooperates with the water retaining portion 11 and the check valve 3 to form a partition structure of the drainage channel 30. The abutment between the water retaining portion 11 and the water retaining flange 21 makes the two sides of the water retaining portion 11 only connected by the drainage port 111, and when the check valve 3 closes the drainage port 111, the two sides of the water retaining portion 11 are also isolated, so that the water retaining flange 21 cooperates with the water retaining portion 11 and the check valve 3 to form a partition structure of the drainage channel 30, preventing the odor, germs, reptiles, etc. in the sewer from entering the room through the floor drain. In addition, the lower arc groove 112 of the water retaining part 11 cooperates with the upper arc groove 211 of the water retaining flange 21 to form a rotation space for the shaft part 32 and also limit the shaft part 32 to prevent the shaft part 32 from detaching from the lower arc groove 112 during rotation, thereby ensuring the reliability of the check valve 3.

[0049] See also Figure 5 As shown, a sealing sheet 33 made of rubber or silicone is provided at the edge of the valve body 31, and the valve body 31 abuts against the water retaining portion 11 through the sealing sheet 33, thereby ensuring the sealing between the check valve 3 and the water retaining portion 11 and improving the reliability of the partition structure of the drainage channel 30.

[0050] The first water inlet 10 is formed by at least one of the through hole 22 provided on the cover plate 2, the gap between the cover plate 2 and the housing 1, and the opening on the side wall at the end of the cover plate 2. Fig.11As shown, in one embodiment, the cover plate 2 is provided with a plurality of elongated through holes 22, the through holes 22 forming the first water inlet 10, and the first water inlet 10 is distributed at both ends of the elongated cover plate 2; Figure 1 , Fig.13 and Fig.15 As shown, in other embodiments, the length of the cover plate 2 is smaller than the length of the inner side of the housing 1, so that there is a gap between the cover plate 2 and the housing 1, and the gap forms the first water inlet 10; see Fig.17 As shown, in other embodiments, the length of the cover plate 2 is less than the length of the inner side of the housing 1, and the side walls of the two ends of the housing 1 are provided with openings, and the gap and the opening together form the first water inlet 10. In addition, in other embodiments not shown in the figure, the first water inlet 10 can also be formed by any two or three of the through holes 22 provided on the cover plate 2, the gap between the cover plate 2 and the housing 1, and the opening on the side wall at the end of the cover plate 2. The specific structure is determined by those skilled in the art according to actual needs. Among them, a plurality of long strip through holes 22 are provided on the cover plate 2 to form the first water inlet 10, which can act as a filter and reduce the probability of debris entering the floor drain. The formation of the first water inlet 10 in the gap between the housing 1 and the cover plate 2 can simplify the structure of the cover plate 2. The opening provided on the side wall of the housing 1 is suitable for scenes with a drainage ditch on the ground, and the side water inlet is formed by combining with the drainage ditch, and the first water inlet 10 of this structure has a large diameter, which is conducive to rapid drainage.

[0051] See also Fig.13 As shown, in one embodiment, the cover plate 2 is provided with a second water inlet 40, and the second water inlet 40 is used to connect a drain pipe. The second water inlet 40 enables the floor drain of the utility model to be used for water pipe drainage, thereby combining ground drainage and water pipe drainage on the same floor drain, reducing the number of floor drains and reducing the construction workload of the floor drain. Drain pipes include but are not limited to drainage pipes of washing devices such as washing machines and sinks.

[0052] See also Figures 1 to 17 As shown, the floor drain of the present invention is further provided with a filter screen 4, which can be arranged at the drainage channel 30, or at the first water inlet 10 and the second water inlet 40 on the cover plate 2. Figures 5 and 6 As shown, the filter screen 4 is arranged in the drainage channel 30, and the inner side wall of the shell 1 is provided with a plug-in groove 12. The filter screen 4 is plugged into the plug-in groove 12 so that the filter screen 4 can be detachably fixed in the drainage channel 30, and the filter screen 4 is located on the side of the check valve 3 away from the water outlet 20, so that the water flow in the floor drain is first intercepted and filtered by the filter screen 4 from the first water inlet 10 or the second water inlet 40 and then flows to the drainage port 111 and the water outlet 20, which can prevent slender debris from hanging on the water retaining part 11 to affect the check valve 3 to close the drainage port 111, and can also prevent a large amount of debris from entering the sewer pipe and causing the sewer pipe to be blocked.

[0053] See also Fig.10 As shown, in places with floor drainage requirements such as bathrooms, balconies, kitchens, or public baths, a cushion layer 200 is usually laid under the floor tiles 100. However, during the construction process, it is inevitable that the cushion layer will be uneven. The lateral size of the horizontal floor drain is larger than that of the vertical floor drain. If the cushion layer is uneven, the top of the floor drain installed on the cushion layer 200 will be tilted and difficult to match the ground. In order to overcome this problem, an adjustment foot (not shown in the figure) is provided at the bottom of the housing 1, and the adjustment foot is used to adjust the horizontality of the housing 1. Figure 2 and Figure 8 As shown, the housing 1 is provided with a receiving hole 13 open to the bottom, the receiving hole 13 includes a first receiving section 131 and a second receiving section 132, the adjusting foot includes a first threaded member and a second threaded member connected by thread, the first receiving section 131 is used to receive the first threaded member and the first threaded member is fixedly connected to the housing 1, and the second receiving section 132 is used to receive the second threaded member, and the height of the adjusting foot protruding from the housing 1 is adjusted by the threaded connection between the first threaded member and the second threaded member, thereby adjusting the horizontality of the housing 1. In one embodiment, the first threaded member is a hexagonal nut, and the second threaded member is a bolt. The first receiving section of the receiving hole 13 is a hexagonal structure, and the hexagonal nut is placed in the first receiving section 131 under the restriction of the first receiving section 131 to form a rotation limit, the head of the bolt is located below the housing 1, and the threaded portion of the bolt extends into the second receiving section 132, and the inner diameter of the second receiving section 132 is larger than the outer diameter of the threaded portion of the bolt, so that the bolt can move axially relative to the receiving hole 13, thereby adjusting the height of each adjusting foot to ensure the horizontality of the floor drain after installation. The adjusting foot is isolated from the drainage channel 30 by the side wall of the receiving hole 13, so that water in the drainage channel 30 can be prevented from leaking from the adjusting foot. In other embodiments, the adjusting foot can also be a convex point or a convex rod integrally formed at the bottom of the housing 1 and protruding from the housing 1. When the floor drain is tilted, the level of the floor drain can be adjusted by adding a cushion material at the corresponding adjusting foot.

[0054] See also Figures 1 to 17 As shown, the housing 1 is in the shape of a long rectangular strip, an angled shape or a "T" shape. The different shapes of the housing 1 are adapted to different structures of the ground and different installation positions. For example, a floor drain with a long rectangular strip or a "T"-shaped housing can be used in a double-separated or triple-separated bathroom, and the first water inlet 10 at each end of the housing is located in different areas, so that one floor drain can achieve drainage in two areas. For another example, a floor drain with an angled housing can be used for the ground with the drainage position in the corner.

[0055] According to the requirements of the use scenario, if it is a place with high requirements for odor prevention or prevention of germs and reptiles, a floor drain core 5 can be set under the shell 1, and the floor drain core 5 is connected to the water outlet 20, and the floor drain core 5 is provided with a water seal odor prevention structure, so that the floor drain core 5 cooperates with the check valve 3 to form a double odor prevention mechanism of the floor drain. Among them, the structure of the floor drain core 5 is the prior art, and those skilled in the art only need to adjust the structure of the water outlet 20 of the horizontal floor drain of the utility model accordingly so that the floor drain core 5 can be reliably connected to the shell 1. Therefore, it is the prior art for those skilled in the art and will not be repeated here.

[0056] The edge of the cover plate 2 is provided with a flange, which is bent upward to form a decorative floor rail 23. The space between the decorative floor rails 23 is used to install floor decoration materials such as tiles 100, making the floor drain more beautiful and achieving the effect of an invisible floor drain.

[0057] According to the different structures of the floor drain, the utility model lists the following five embodiments.

[0058] Example 1

[0059] See also Figures 1 to 8 As shown, the housing 1 of this example is in the shape of a long rectangular strip, and the gap between the cover plate 2 and the housing 1 forms a first water inlet 10, and the first water inlet 10 is distributed at both ends of the long rectangular floor drain. Two drainage channels 30 are formed between the first water inlet 10 and the water outlet 20, and each drainage channel 30 is provided with a check valve 3 and a filter 4.

[0060] Example 2

[0061] See also Figure 11 to Figure 12 As shown, the shell 1 of this example is in the shape of a long rectangular strip, and the through hole 22 on the cover plate 2 forms the first water inlet 10, and the first water inlet 10 is distributed at both ends of the long rectangular floor drain. Two drainage channels 30 are formed between the first water inlet 10 and the water outlet 20, and a check valve 3 is provided in each drainage channel 30. Since the first water inlet 10 is formed by the long strip through hole 22, the multiple through holes 22 arranged at intervals can act as a filter screen. Therefore, in this example, a filter screen may not be provided separately, and a filter screen may be placed above the cover plate 2.

[0062] Example 3

[0063] See also Figure 13 to Figure 14As shown, the shell 1 of this example is angular in shape, and the gap between the cover plate 2 and the shell 1 forms the first water inlet 10, and the first water inlet 10 is distributed at both ends of the angular floor drain away from the corner. Two drainage channels 30 are formed between the first water inlet 10 and the water outlet 20, and each drainage channel 30 is provided with a check valve 3 and a filter 4. This example is also provided with a second water inlet 40, which is formed on the cover plate 2 and located at the corner of the floor drain. The second water inlet 40 is also provided with a filter 4 so that it can be used for ground drainage when the second water inlet 40 is not connected to the drain pipe. The deodorization at the second water inlet 40 can be achieved by setting a floor drain core at the water outlet 20.

[0064] Example 4

[0065] See also Figure 15 to Figure 16 As shown, the housing 1 of this example is in a "T" shape, and the gap between the cover plate 2 and the housing 1 forms a first water inlet 10, and the first water inlet 10 is distributed at the "T"-shaped end of the floor drain. Three drainage channels 30 are formed between the first water inlet 10 and the water outlet 20, and each drainage channel 30 is provided with a check valve 3 and a filter 4.

[0066] Example 5

[0067] See also Fig.17 As shown, the housing 1 of this example is in a "T" shape, and the gap between the cover plate 2 and the housing 1 and the openings of the side walls at both ends of the housing form a first water inlet 10, and the first water inlet 10 is distributed at the "T"-shaped end of the floor drain. Three drainage channels 30 are formed between the first water inlet 10 and the water outlet 20, and each drainage channel 30 is provided with a check valve 3 and a filter 4.

[0068] Although the present invention is specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that the remaining undescribed portions are prior art, and that various changes made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims shall fall within the scope of protection of the present invention.

Claims

1. A horizontal floor drain, characterized in that: It comprises a shell and a plurality of first water inlets arranged at the edge area of ​​the shell, a cover plate is provided on the top of the shell, a water outlet is provided at the bottom of the shell, a plurality of drainage channels are formed between the shell and the cover plate, the drainage channels are connected to at least one of the first water inlet and the water outlet, a check valve is provided in each of the drainage channels, and the check valve is used to open the drainage channel under the action of water flow or close the drainage channel under the action of gravity.

2. A horizontal floor drain according to claim 1, characterized in that: The inner wall of the shell is provided with a water retaining portion located in the drainage channel, and the water retaining portion is provided with a drainage port. The check valve includes a valve body portion and a rotating shaft portion that are integrally connected. A lower arc groove is provided on the top of the water retaining portion, and the rotating shaft portion is rotatably arranged in the lower arc groove, thereby forming the check valve rotatably arranged in the drainage channel, and the rotating shaft portion drives the valve body portion to open the drainage port to open the drainage channel or close the drainage port to close the drainage channel.

3. A horizontal floor drain according to claim 2, characterized in that: The cover plate is provided with a water retaining flange abutting against the water retaining part, and the water retaining flange is provided with an upper arc groove, and the upper arc groove cooperates with the lower arc groove to form a rotation limiting structure of the rotating shaft part, and the water retaining flange cooperates with the water retaining part and the check valve to form a partition structure of the drainage channel.

4. A horizontal floor drain according to claim 1, characterized in that: The first water inlet is formed by at least one of a through hole provided on the cover plate, a gap between the cover plate and the shell, and an opening on a side wall at an end of the cover plate.

5. A horizontal floor drain according to claim 1 or 4, characterized in that: The cover plate is provided with a second water inlet, and the second water inlet is used for connecting a drain pipe.

6. A horizontal floor drain according to claim 5, characterized in that: It also includes a filter screen, which is arranged in the drainage channel, or the filter screen is arranged at the first water inlet and the second water inlet on the cover plate. When the filter screen is arranged in the drainage channel, the inner side wall of the shell is provided with a plug-in groove, the filter screen is plugged into the plug-in groove, and the filter screen is located on the side of the check valve away from the water outlet.

7. The horizontal floor drain according to claim 1, characterized in that: The bottom of the shell is provided with an adjusting foot, and the adjusting foot is used to adjust the horizontality of the shell.

8. A horizontal floor drain according to claim 7, characterized in that: The adjusting foot includes a first threaded member and a second threaded member which are threadably connected. The shell is provided with a receiving hole which is open to the bottom. The receiving hole includes a first receiving section and a second receiving section. The first receiving section is used to receive the first threaded member and the first threaded member is fixedly connected to the shell. The second receiving section is used to receive the second threaded member. The height of the adjusting foot protruding from the shell is adjusted by the threaded connection between the first threaded member and the second threaded member, thereby adjusting the horizontality of the shell. The adjusting foot is isolated from the drainage channel by the side wall of the receiving hole.

9. The horizontal floor drain according to claim 1, characterized in that: The shell is in the shape of a long rectangle, an angle or a "T".

10. The horizontal floor drain according to claim 1, characterized in that: A floor drain core is provided below the shell, the floor drain core is connected to the water outlet, and the floor drain core is provided with a water seal anti-odor structure, so that the floor drain core cooperates with the check valve to form a double anti-odor mechanism for the floor drain.

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