Secondary drainage anti-overflow device and secondary drainage downstream tee joint

Abstract

The utility model discloses a secondary drainage anti-overflow device and a secondary drainage downstream tee joint, the secondary drainage anti-overflow device comprises an annular mounting seat and an arc-shaped part, one end of the arc-shaped part is mounted at the top of one open end of the mounting seat along the circumferential direction of the mounting seat, and the concave surface of the arc-shaped part faces the bottom of one open end of the mounting seat. According to the utility model, sewage can be effectively prevented from entering the secondary water outlet when falling down, so that the problems of sewage reverse overflow and pipeline blockage possibly caused by overlarge sewage discharge amount are avoided; by arranging the limiting block, the limiting block is matched with the fixing groove of the secondary water outlet in an inserted mode, so that the anti-overflow device can be conveniently installed on the secondary water outlet, installation is convenient, and the anti-overflow device can be repeatedly used; and on the other hand, the mounting base is limited through insertion matching of the limiting block and the fixing groove, unnecessary rotation of the anti-spill device during use is prevented, the stability and reliability of the anti-spill device are enhanced, and therefore it is ensured that the anti-spill function can be effectively executed for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of building drainage, and more specifically to a secondary drainage backflow prevention device and a secondary drainage water-flowing tee. Background Art

[0002] In the building drainage system, the emergence of branch flows has promoted the application of a large number of downstream tees. Nowadays, secondary drainage downstream tees have emerged based on the expansion of actual application scenarios. The secondary drainage outlet is generally used to connect drainage pipes such as floor drains. Generally speaking, the flow state of water inside the drainage riser connected to the secondary drainage downstream tee is irregular free fall, and the emergence of the secondary drainage outlet means that the falling water may fall on the corner wall of the secondary drainage outlet. The water upstream of the riser falls into the secondary drainage outlet, which will cause sewage overflow and even block the pipes connected to the secondary drainage pipe.

[0003] Therefore, it is necessary to propose a new solution to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a secondary drainage anti-overflow device and a secondary drainage water-flowing tee, which can effectively prevent sewage from entering the secondary drainage outlet when falling, thereby avoiding the problem of sewage overflow and pipe blockage caused by excessive sewage drainage.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A secondary drainage backflow prevention device comprises an annular mounting seat and an arcuate portion mounted on the mounting seat, one end of the arcuate portion is mounted on the top of one of the open ends of the mounting seat along the circumferential direction of the mounting seat, and the concave surface of the arcuate portion faces the bottom of one of the open ends of the mounting seat.

[0007] Furthermore, the arc length of the arc-shaped portion is half of the circumference of the mounting seat.

[0008] Furthermore, the arc-shaped portion gradually narrows from one end to the other end, and the other end of the arc-shaped portion partially covers one open end of the mounting seat.

[0009] Furthermore, a shielding portion perpendicular to the arc-shaped portion is installed at the other end of the arc-shaped portion, and the shielding portion partially shields one open end of the mounting seat.

[0010] Furthermore, a limit block is installed on the outer side wall of the mounting seat.

[0011] Furthermore, a limiting ring is installed on the other open end of the mounting seat, and the limiting ring is coaxially arranged with the mounting seat.

[0012] Furthermore, the inner diameter of the limiting ring is equal to the inner diameter of the mounting seat.

[0013] The utility model also discloses a secondary drainage water-adjusting tee, comprising a secondary drainage water-adjusting tee body and the above-mentioned secondary drainage anti-overflow device, the secondary drainage water-adjusting tee body comprising a pipe fitting body, and a branch pipe socket and a secondary drainage port integrally arranged on the side wall of the pipe fitting body, the secondary drainage port is located below the branch pipe socket and is connected to the pipe fitting body through a connecting port, the mounting seat is installed in the secondary drainage port and is located at the connecting port, and the arc-shaped portion at least partially passes through the connecting port and is located in the pipe fitting body.

[0014] Furthermore, the secondary drain outlet is provided with a fixing ring at the communicating port, and the fixing ring is provided with a fixing groove.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model can effectively prevent sewage from entering the secondary drainage outlet when falling, thereby avoiding the problem of sewage overflow and pipe blockage caused by excessive sewage drainage.

[0017] 2. In the utility model, a limit block is provided, and the limit block is plugged in and matched with the fixing groove of the secondary drain outlet, so that the anti-backflow device can be installed in the secondary drain outlet, which is convenient to install and reusable, thereby reducing maintenance costs; on the other hand, the mounting seat is restricted by the plug-in cooperation of the limit block and the fixing groove, thereby preventing the anti-backflow device from unnecessary rotation during use, enhancing the stability and reliability of the anti-backflow device, thereby ensuring that the anti-backflow function can be effectively performed for a long time.

[0018] 3. In the utility model, a limit ring is provided, and the installation position of the mounting seat is limited by the abutment cooperation between the limit ring and the fixing ring of the secondary drainage outlet, thereby preventing the anti-backflow device from being installed improperly or being installed too deep to cause separation from the secondary drainage outlet under the impact of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the secondary drainage anti-overflow device in this embodiment;

[0020] Figure 2 A structural schematic diagram of the secondary drainage anti-overflow device in this embodiment from another perspective;

[0021] Figure 3 This is a structural schematic diagram of the secondary drainage tee body in this embodiment;

[0022] Figure 4 A schematic cross-sectional view of the secondary drainage tee body in this embodiment;

[0023] Figure 5 for Figure 4 Enlarged view of part A in the middle;

[0024] Figure 6 A schematic cross-sectional view of the secondary drain outlet in this embodiment;

[0025] Figure 7 This is a structural schematic diagram of a secondary drainage downstream tee in this embodiment;

[0026] Figure 8 for Figure 7 Enlarged view of part B in the middle.

[0027] Figure numerals: mounting seat 1, arc-shaped portion 2, shielding portion 3, limiting block 4, limiting ring 5, secondary drainage tee body 6, pipe body 601, branch pipe socket 602, secondary drainage outlet 603, connecting port 604, fixing groove 605, fixing ring 606, drainage pipe 7. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1: A secondary drainage anti-overflow device, such as Figure 1-Figure 2 As shown, it includes an annular mounting seat 1 and an arcuate portion 2 mounted on the mounting seat 1, one end of the arcuate portion 2 is mounted on the top of one of the open ends of the mounting seat 1 along the circumferential direction of the mounting seat 1, and the concave surface of the arcuate portion 2 faces the bottom of one of the open ends of the mounting seat 1.

[0030] When using, Figure 3-Figure 8 As shown, the anti-overflow device is first installed in the secondary drainage outlet 603 of the secondary drainage tee body 6, and then the drainage pipe 7 used to connect the floor drain, etc. is plugged into the secondary drainage outlet 603; wherein, the secondary drainage tee body 6 includes a pipe body 601, and a branch pipe socket 602 and a secondary drainage outlet 603 integrally arranged on the side wall of the pipe body 601, the secondary drainage outlet 603 is located below the branch pipe socket 602, and is connected to the pipe body 601 through a connecting port 604, the two ends of the pipe body 601 are used to connect to the drainage riser respectively, the branch pipe socket 602 is used to connect to the sewer branch pipe 602, and the secondary drainage outlet 603 is used to connect to the drainage pipe 7; specifically, the mounting seat 1 is installed in the secondary drainage outlet 603 and is located at the connecting port 604, and the arc portion 2 at least partially passes through the connecting port 604 and is located in the pipe body 601.

[0031] By setting the mounting seat 1, the anti-overflow device can be installed in the secondary drain outlet 603; by setting the arc portion 2, on the one hand, it plays a shielding role, which can effectively prevent the sewage flowing in from the upper end of the pipe body 601 and the branch pipe socket 602 from entering the secondary drain outlet 603 when falling, thereby avoiding the problem of sewage overflow and pipe blockage caused by excessive sewage drainage; on the other hand, it plays a diversion role. When the sewage falls to the convex surface of the arc portion 2, its arc surface is used to divert the sewage and flow to the two sides of the arc portion 2 respectively, avoiding the accumulation of sewage in the arc portion 2 and not affecting the sewage drainage.

[0032] Preferably, the arc length of the arc portion 2 is half of the circumference of the mounting seat 1. With the above design, the material used for the arc portion 2 is reduced, thereby reducing the cost while ensuring the sewage backflow prevention effect.

[0033] Preferably, the arc portion 2 gradually narrows from one end to the other end, so that the other end of the arc portion 2 partially blocks one open end of the mounting seat 1. With the above design, on the one hand, the arc surface is used to divert sewage, and the sewage flows to the two sides and the other end of the arc portion 2, thereby preventing sewage from accumulating in the arc portion 2 and not affecting sewage drainage; on the other hand, by partially blocking the mounting seat 1, sewage is prevented from splashing into the secondary drainage port 603.

[0034] Furthermore, a shielding portion 3 perpendicular to the arc-shaped portion 2 is installed at the other end of the arc-shaped portion 2, and the shielding portion 3 partially shields one open end of the mounting seat 1. With the above design, on the one hand, the mounting seat 1 is partially shielded by the shielding portion 3 to prevent sewage from splashing into the secondary drainage port 603, thereby avoiding the problem of sewage overflow and pipe blockage caused by excessive sewage drainage; on the other hand, since the shielding portion 3 is perpendicular to the arc-shaped portion 2, part of the sewage falling to the arc-shaped portion 2 falls quickly through the shielding portion 3, avoiding sewage accumulation in the arc-shaped portion 2 and sewage drainage.

[0035] Furthermore, a limit block 4 is installed on the outer wall of the mounting seat 1; by setting the limit block 4, on the one hand, the limit block 4 is plugged in and matched with the fixing groove 605 of the secondary drain outlet 603, so that the anti-backflow device can be installed in the secondary drain outlet 603, which is convenient to install and reusable, and reduces maintenance costs; on the other hand, the mounting seat 1 is restricted by the plug-in cooperation of the limit block 4 and the fixing groove 605, so as to prevent the anti-backflow device from unnecessary rotation during use, thereby enhancing the stability and reliability of the anti-backflow device, thereby ensuring that the anti-backflow function can be effectively performed for a long time.

[0036] Furthermore, a limiting ring 5 is installed at the other open end of the mounting seat 1, and the limiting ring 5 is coaxially arranged with the mounting seat 1. By setting the limiting ring 5, the limiting ring 5 is used to abut and cooperate with the fixing ring 606 of the secondary drainage outlet 603 to limit the installation position of the mounting seat 1, thereby preventing the anti-overflow device from being installed inadequately or being installed too deep to cause it to be separated from the secondary drainage outlet 603 under the impact of sewage.

[0037] Preferably, the inner diameter of the limiting ring 5 is equal to the inner diameter of the mounting seat 1. With the above design, when the sewage in the drainage pipe 7 flows through the limiting ring 5, the flow rate is not affected.

[0038] Embodiment 2: This embodiment provides a secondary drainage tee, such as Figure 3-Figure 8 As shown, it includes the secondary drainage anti-overflow device provided in the first embodiment, and the secondary drainage water-adjusting tee body 6, wherein the secondary drainage water-adjusting tee body 6 includes a pipe body 601, and a branch pipe socket 602 and a secondary drainage port 603 integrally arranged on the side wall of the pipe body 601, the secondary drainage port 603 is located below the branch pipe socket 602, and is connected to the pipe body 601 through a connecting port 604, the mounting seat 1 is installed in the secondary drainage port 603 and is located at the connecting port 604, and the arc portion 2 at least partially passes through the connecting port 604 and is located in the pipe body 601. The above design can effectively prevent the sewage flowing in from the upper end of the pipe body 601 and the branch pipe socket 602 from entering the secondary drainage port 603 when falling, thereby avoiding the problem of sewage overflow and pipeline blockage caused by excessive sewage drainage.

[0039] Furthermore, the secondary drain outlet 603 is provided with a fixing ring 606 at the connecting port 604 , and the fixing ring 606 is provided with a fixing groove 605 matched with the limiting block 4 .

[0040] By setting the fixing groove 605, on the one hand, the anti-backflow device can be installed on the secondary drain outlet 603 through the plug-in cooperation between the limit block 4 and the fixing groove 605, which is convenient for installation and reusable, thereby reducing maintenance costs; on the other hand, the mounting base 1 is restricted through the plug-in cooperation between the limit block 4 and the fixing groove 605, thereby preventing the anti-backflow device from unnecessary rotation during use, thereby enhancing the stability and reliability of the anti-backflow device, thereby ensuring that the anti-backflow function can be effectively performed for a long time.

[0041] By setting a fixing ring 606 and utilizing the limiting ring 5 to abut against the fixing ring 606, the installation position of the mounting seat 1 is restricted, thereby preventing the anti-overflow device from being improperly installed or being installed too deep to cause it to detach from the secondary drain outlet 603 under the impact of sewage.

[0042] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A secondary drainage anti-overflow device, characterized in that: The invention comprises an annular mounting seat (1) and an arc-shaped portion (2) mounted on the mounting seat (1), wherein one end of the arc-shaped portion (2) is mounted on the top of one of the open ends of the mounting seat (1) along the circumferential direction of the mounting seat (1), and the concave surface of the arc-shaped portion (2) faces the bottom of one of the open ends of the mounting seat (1).

2. A secondary drainage anti-overflow device according to claim 1, characterized in that: The arc length of the arc-shaped portion (2) is half the circumference of the mounting seat (1).

3. A secondary drainage anti-overflow device according to claim 1, characterized in that: The arc-shaped portion (2) gradually narrows from one end to the other end, and the other end of the arc-shaped portion (2) partially covers an open end of the mounting seat (1).

4. A secondary drainage anti-overflow device according to claim 1, characterized in that: The other end of the arc-shaped portion (2) is provided with a shielding portion (3) perpendicular to the arc-shaped portion (2), and the shielding portion (3) shields part of an open end of the mounting seat (1).

5. The secondary drainage anti-overflow device according to claim 1, characterized in that: A limiting block (4) is installed on the outer side wall of the mounting seat (1).

6. A secondary drainage anti-overflow device according to claim 1, characterized in that: A limiting ring (5) is installed on the other open end of the mounting seat (1), and the limiting ring (5) is coaxially arranged with the mounting seat (1).

7. A secondary drainage anti-overflow device according to claim 6, characterized in that: The inner diameter of the limiting ring (5) is equal to the inner diameter of the mounting seat (1).

8. A secondary drainage tee, characterized in that: It comprises a secondary drainage tee body (6) and a secondary drainage backflow prevention device as described in any one of claims 1 to 7, wherein the secondary drainage tee body (6) comprises a pipe body (601), and a branch pipe socket (602) and a secondary drainage outlet (603) integrally arranged on the side wall of the pipe body (601), the secondary drainage outlet (603) being located below the branch pipe socket (602) and being connected to the pipe body (601) through a connecting port (604), the mounting seat (1) being installed in the secondary drainage outlet (603) and being located at the connecting port (604), and the arc portion (2) at least partially passing through the connecting port (604) and being located in the pipe body (601).

9. A secondary drainage tee according to claim 8, characterized in that: The secondary drainage port (603) is provided with a fixing ring (606) at the communicating port (604), and a fixing groove (605) is provided on the fixing ring (606).

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