Airtight floor drain

Abstract

The utility model relates to the technical field of floor drains, in particular to an airtight floor drain which comprises a floor drain body and a cover plate, the floor drain body is provided with a water seal portion of a groove-shaped structure, the cover plate is arranged on the upper portion of the floor drain body and matched with the water seal portion to form airtight sealing, and the cover plate comprises a first cover plate portion and a second cover plate portion. The first cover plate part is arranged above the water seal part, the lower end of the first cover plate part extends to be lower than the top end of the water seal part, and the second cover plate part is detachably connected with the floor drain body, so that the access hole is opened by detaching the second cover plate part. According to the utility model, the first cover plate part is detachably connected with the floor drain body to form the access hole, so that the maintenance operation can be conveniently carried out when the floor drain is blocked or parts are damaged; in addition, the water seal part and the cover plate are matched with each other to form airtight sealing of the floor drain, and the sealing effect of the floor drain is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of floor drains, in particular to an airtight floor drain. Background Art

[0002] Existing floor drains generally prevent the odor in the sewer from flowing back through a valve arranged at the bottom. However, there is a certain gap between the valve and the floor drain body, and its structure cannot prevent the backflow impact of the sewer pipe. Reptiles, germs, and odors in the sewer can easily flow back through the gap. In particular, when long and thin debris such as clothing fibers or hair are hung on the floor drain, it is impossible to close the valve or increase the gap between the floor drain body and the valve, which aggravates the odor backflow in the sewer.

[0003] The applicant proposed a reverse-blocking core and applied for a patent application with application number 202311335420.0, which forms a water seal through the water storage cavity at the bottom of the reverse-blocking core body to prevent the odor from flowing back into the sewer. The reverse-blocking core is also provided with a reverse-blocking cover, which forms a second layer of resistance through the body and the reverse-blocking cover, and can prevent the gas-water impact and invasion of living organisms in the sewer, and has a good effect in preventing the reflux of reptiles, germs, and odor in the sewer.

[0004] However, the partition wall of the main body is integrally formed with the main body and extends from the inner wall to the middle of the main body, so it will block the top of the anti-reverse cover. When the anti-reverse cover needs to be replaced or the water seal area needs to be cleaned, the anti-reverse core must be removed as a whole, which is inconvenient to operate. Summary of the invention

[0005] The utility model aims to provide an airtight floor drain to solve the problem that the existing reverse blocking device is not easy to repair and replace.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: an airtight floor drain, comprising a floor drain body and a cover plate, the floor drain body is provided with a water seal portion with a groove-shaped structure, the cover plate is arranged on the upper part of the floor drain body and cooperates with the water seal portion to form an airtight seal, the cover plate comprises a first cover plate portion and a second cover plate portion, the first cover plate portion is arranged above the water seal portion and its lower end extends to below the top end of the water seal portion, the second cover plate portion is detachably connected to the floor drain body, so that the inspection port is opened by removing the second cover plate portion.

[0007] In one embodiment, an installation step is provided on the inner side of the floor drain body, and the second cover plate portion abuts against the installation step, thereby forming a detachable connection between the second cover plate portion and the floor drain body.

[0008] In one embodiment, the first cover plate portion is detachably connected to the floor drain body, so that the inspection opening is formed by removing the cover plate.

[0009] In one embodiment, a first plug-in structure is provided at the edge of the first cover portion, and a second plug-in structure is provided on the inner wall of the floor drain body, and a detachable sealed connection is formed between the first cover portion and the floor drain body through the first plug-in structure and the second plug-in structure.

[0010] In one embodiment, the first plug-in structure is a long strip of convex strip with an arc-shaped cross-section and convex sides, and the second plug-in structure is a long strip of groove matching the first plug-in structure, thereby forming a sealed connection between the first cover plate part and the floor drain body.

[0011] In one embodiment, the first cover plate portion and the second cover plate portion are integrally connected.

[0012] In one embodiment, a first water outlet is provided between the first cover portion and the top end of the water seal portion, and a first valve is provided at the first water outlet for opening or closing the first water outlet, thereby improving the air tightness of the floor drain.

[0013] In one embodiment, the first valve is rotatably connected to the cover plate, so that the first valve and the cover plate are removed together to open the inspection port.

[0014] In one embodiment, a water outlet channel is formed between the edge of the water seal portion and the inner wall of the floor drain body, and a second water outlet for connecting to a sewer is provided at the bottom end of the floor drain body, and the water outlet channel connects the inspection port with the second water outlet.

[0015] In one embodiment, a self-closing second valve is provided at the second water outlet for opening or closing the second water outlet.

[0016] The beneficial effects of the utility model are as follows: firstly, an inspection port is formed by the detachable connection between the first cover plate portion and the floor drain body, so as to facilitate inspection work when the floor drain is blocked or parts are damaged; secondly, the second cover plate portion is also detachably connected to the floor drain body to expand the diameter of the inspection port, which makes it easier to carry out inspection work on the one hand, and can simplify the structure of the floor drain body and reduce the manufacturing cost of the floor drain body on the other hand; thirdly, the water seal portion and the cover plate cooperate with each other to form an airtight seal of the floor drain, thereby enhancing the sealing effect of the floor drain; finally, the first valve and the second valve can close the first water outlet and the second water outlet respectively, thereby forming multiple seals of the floor drain and further enhancing the sealing effect of the floor drain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of embodiment 1 of the utility model.

[0018] Figure 2It is the front view of embodiment 1 of the utility model.

[0019] Figure 3 yes Figure 2 AA section view.

[0020] Figure 4 It is a top view of embodiment 1 of the utility model.

[0021] Figure 5 yes Figure 4 BB cross-sectional view.

[0022] Figure 6 It is a structural diagram of the cover plate of Example 1 of the utility model.

[0023] Figure 7 It is a main structural diagram of the floor drain of Example 1 of the utility model.

[0024] Figure 8 It is a sectional view of the floor drain body of Example 1 of the utility model.

[0025] Fig. 9 It is a main structural diagram of the floor drain of Example 2 of the utility model.

[0026] Fig.10 It is a cross-sectional view of the floor drain body of Example 2 of the utility model.

[0027] Fig.11 This is a structural diagram of the second cover plate portion of Example 2 of the utility model.

[0028] Fig.12 It is a sectional view of the overall structure of Example 2 of the utility model.

[0029] Fig.13 This is a cross-sectional view of the overall structure of Embodiment 3 of the present utility model. Figure 1 .

[0030] Fig.14 This is a cross-sectional view of the overall structure of Embodiment 3 of the present utility model. Figure 2 .

[0031] Wherein: 1 floor drain body, 101 inspection port, 102 first water outlet, 103 water outlet channel, 104 second water outlet, 11 water seal part, 12 second plug-in structure, 13 installation step, 131 fourth plug-in structure, 14 recessed part, 15 partition groove, 2 cover plate, 21 first cover plate part, 211 first plug-in structure, 22 second cover plate part, 221 third plug-in structure, 222 raised part, 23 valve installation part, 231 open hole, 3 first valve, 31 rotating shaft part, 32 valve plate part, 4 second valve. DETAILED DESCRIPTION

[0032] 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.

[0033] Example 1

[0034] See also Figures 1 to 8 As shown, the utility model discloses an airtight floor drain, including a floor drain body 1 and a cover plate 2, the floor drain body 1 is provided with a water seal portion 11 of a groove-shaped structure, the cover plate 2 is arranged on the upper part of the floor drain body 1 and cooperates with the water seal portion 11 to form an airtight seal, the cover plate 2 includes a first cover plate portion 21 and a second cover plate portion 22, the first cover plate portion 21 is arranged above the water seal portion 11 and its lower end extends to below the top of the water seal portion 11, the second cover plate portion 22 is detachably connected to the floor drain body 1, so that the inspection port 101 is opened by removing the second cover plate portion 22.

[0035] See also Figure 6 As shown, the first cover plate portion 21 and the second cover plate portion 22 of this example are integrally connected, so the first cover plate portion 21 and the floor drain body 1 are also detachably connected, and the inspection port 101 can be opened by removing the cover plate 2 formed by the first cover plate portion 21 and the second cover plate portion 22. In other embodiments, only the second cover plate portion 22 may be detachably connected to the floor drain body 1, and the specific structure is shown in the following embodiment 2.

[0036] See also Figure 3 , Figures 6 to 8As shown, the edge of the first cover plate portion 21 is provided with a first plug-in structure 211, and the inner wall of the floor drain body 1 is provided with a second plug-in structure 12, and a detachable sealed connection between the first cover plate portion 21 and the floor drain body 1 is formed by the first plug-in structure 211 and the second plug-in structure 12. The first plug-in structure 211 of this example is a long strip convex strip, and its cross section is an arc-shaped structure with convex sides, and the cross-sectional shape is similar to the "Ω" shape. The second plug-in structure 12 is a long strip groove matching the first plug-in structure 211, thereby forming a sealed connection between the first cover plate portion 21 and the floor drain body 1. The long strip convex strip as the first plug-in structure 211 and the long strip groove as the first plug-in structure 211 are both extended along the axial direction of the floor drain body 1, so that the cover plate 2 is plugged into the floor drain body 1 from top to bottom when installed, and the installation is convenient and quick. The cover plate 2 is installed by plugging the first plug structure 211 and the second plug structure 12. The first plug structure 211 and the second plug structure 12 are relatively long. If a sealing ring is used for sealing, the installation is difficult. The plug structure with a cross section similar to "Ω" can play a certain sealing role. Therefore, the plug-in installation between the cover plate 2 and the floor drain body 1 can take into account both the convenience of installation and the isolation of odor. The middle part of the cross section of the first plug structure 211 is wider than the two ends, which can prevent the first plug structure 211 from being separated from the second plug structure 12.

[0037] See also Figures 5 to 8 As shown, the inner side of the floor drain body 1 is provided with a mounting step 13, and the second cover plate portion 22 abuts against the mounting step 13, thereby forming a detachable connection between the second cover plate portion 22 and the floor drain body 1. The second cover plate portion 22 is provided with a third plug-in structure 221, and the mounting step 13 is provided with a fourth plug-in structure 131. The third plug-in structure 221 is an arc-shaped flange arranged on the periphery of the second cover plate portion 22, and the fourth plug-in structure 131 is an arc-shaped groove corresponding to the third plug-in structure 221. With the plug-in between the first cover plate 21 and the floor drain body 1, the third plug-in structure 221 of the second cover plate portion 22 and the fourth plug-in structure 131 form a plug-in fit. The cross-sectional size of the arc-shaped groove as the fourth plug-in structure 131 is larger than the arc-shaped flange as the third plug-in structure 221, so that a water seal structure can be formed at the bottom of the fourth plug-in structure 131, forming a sealed connection between the second cover plate portion 22 and the floor drain body 1.

[0038] A protrusion 222 is also provided on one side of the second cover plate portion 22, and a recess 14 corresponding to the protrusion 222 is provided on the floor drain body 1, and both the protrusion 222 and the recess 14 are triangular structures, thereby preventing the cover plate 2 from falling out of the floor drain body 1. However, the protrusion 222 and the recess 14 of the triangular structure make it difficult to remove the cover plate 2, so two separation grooves 15 are provided on the side wall of the floor drain body 1, and the two separation grooves 15 are respectively located on both sides of the recess 14, so as to form a deformable structure between the two separation grooves 15, so as to facilitate the separation of the protrusion 222 and the recess 14, thereby facilitating the removal of the cover plate 2.

[0039] See also Figures 1 to 8 As shown, a first water outlet 102 is provided between the first cover plate portion 21 and the top of the water seal portion 11, and a first valve 3 is provided at the first water outlet 102 for opening or closing the first water outlet 102, thereby improving the air tightness of the floor drain. The first valve 3 includes a rotating shaft portion 31 and a valve plate portion 32, and a valve mounting portion 23 is provided on the side of the cover plate 2 facing the first water outlet 102, and the valve mounting portion 23 is provided with an open hole 231 with one side open, and the rotating shaft portion 31 of the first valve 3 is installed on the valve mounting portion 23 and can rotate in the open hole 231, thereby realizing that the first valve 3 opens or closes the first water outlet 102. Since the first valve 3 is rotatably connected to the cover plate 2, the first valve 3 is removed together when the cover plate 2 is disassembled, so as to open the inspection port to inspect the floor drain, and the first valve 3 is removed for inspection.

[0040] A water outlet channel 103 is formed between the edge of the water seal portion 11 and the inner wall of the floor drain body 1. A second water outlet 104 for connecting to the sewer is provided at the bottom end of the floor drain body 1. The water outlet channel 103 connects the inspection port 101 with the second water outlet 104. Therefore, when the inspection port 101 is opened for inspection, the second water outlet 104 can also be inspected through the inspection port 101 and the water outlet channel 103, that is, the sewer is dredged to prevent the floor drain from being blocked.

[0041] Example 2

[0042] See also Figures 9 to 12 As shown, the difference between this example and Example 1 is that the first cover plate portion 21 and the second cover plate portion 22 are connected in a split manner, and the first cover plate portion 21 is connected integrally with the floor drain body 1, so the sealing connection between the first cover plate 21 and the floor drain body 1 is more reliable, while the second cover plate portion 22 is a separately formed sheet structure, and the inspection port 101 is small at this time, and the inspection port 101 can be opened by disassembling the second cover plate portion 22. The sealing connection between the second cover plate portion 22 and the floor drain body 1 is achieved by a rubber sealing ring arranged on the second cover plate portion 22.

[0043] The first valve 3 of this example is rotatably connected to the floor drain body 1, and the valve mounting portion 23 for mounting the first valve 3 is formed on the inner wall of the floor drain body 1. The first valve 3 relies on gravity and hydraulic impact to open or close the first water outlet 102.

[0044] Example 3

[0045] See also Figure 13 to Figure 14 As shown, a self-closing second valve 4 is provided at the second water outlet 104 of this example for opening or closing the second water outlet 104. The second valve 4 of this example is suitable for the floor drain of Example 1 or Example 2. The structure of the second valve 4 is the same as that of the first valve 3. The mounting structure for mounting the second valve 4 is formed at the second water outlet 104 on the inner wall of the floor drain body 1. The second valve 4 closes the second water outlet 104 by a spring reset mechanism arranged at the rotating shaft. When water flows from the water outlet channel 103 to the second water outlet 104, the second water outlet 104 is opened by overcoming the elastic force of the spring by hydraulic impact. At this time, the bottom end of the floor drain body 1 is an inclined structure, so that the second valve 4 can be installed obliquely to close the second water outlet 104, shorten the movement stroke of the second valve 4 when opening or closing the second water outlet 104, and make it easier to open and close the second water outlet 104.

[0046] 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. An airtight floor drain, characterized in that: It includes a floor drain body and a cover plate, the floor drain body is provided with a water seal portion with a groove-shaped structure, the cover plate is arranged on the upper part of the floor drain body and cooperates with the water seal portion to form an airtight seal, the cover plate includes a first cover plate portion and a second cover plate portion, the first cover plate portion is arranged above the water seal portion and its lower end extends to below the top of the water seal portion, the second cover plate portion is detachably connected to the floor drain body, so that the inspection port can be opened by removing the second cover plate portion.

2. An airtight floor drain according to claim 1, characterized in that: An installation step is provided on the inner side of the floor drain body, and the second cover plate portion abuts against the installation step, thereby forming a detachable connection between the second cover plate portion and the floor drain body.

3. The airtight floor drain according to claim 1, characterized in that: The first cover plate portion is detachably connected to the floor drain body, so that the inspection opening is formed by removing the cover plate.

4. An airtight floor drain according to claim 3, characterized in that: A first plug-in structure is provided on the edge of the first cover plate portion, and a second plug-in structure is provided on the inner wall of the floor drain body. The first plug-in structure and the second plug-in structure form a detachable sealed connection between the first cover plate portion and the floor drain body.

5. The airtight floor drain according to claim 4, characterized in that: The first plug-in structure is a long strip convex strip with an arc-shaped cross section and convex on both sides, and the second plug-in structure is a long strip groove matching the first plug-in structure, thereby forming a sealed connection between the first cover plate part and the floor drain body.

6. The airtight floor drain according to claim 3, characterized in that: The first cover plate portion and the second cover plate portion are integrally connected.

7. The airtight floor drain according to claim 3, characterized in that: A first water outlet is provided between the first cover plate portion and the top end of the water seal portion, and a first valve is provided at the first water outlet for opening or closing the first water outlet, thereby improving the air tightness of the floor drain.

8. An airtight floor drain according to claim 7, characterized in that: The first valve is rotatably connected to the cover plate, so that the first valve and the cover plate are removed together to open the inspection port.

9. The airtight floor drain according to claim 1, characterized in that: A water outlet channel is formed between the edge of the water seal portion and the inner wall of the floor drain body. A second water outlet for connecting to a sewer is provided at the bottom end of the floor drain body. The water outlet channel connects the inspection port with the second water outlet.

10. An airtight floor drain according to claim 9, characterized in that: A self-closing second valve is provided at the second water outlet for opening or closing the second water outlet.

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