Anti-return-overflow two-row pipe fitting

Abstract

The utility model discloses an anti-return overflow two-row pipe fitting, which comprises a two-row sleeve and a two-row fixing seat, the end part of the two-row fixing seat is provided with a bellmouth, the two-row sleeve is inserted into the bellmouth, the two-row fixing seat is internally provided with a floating ball, and the two-row sleeve is inserted into a water inlet at the side part of a vertical pipe. The two-row pipe fitting is reasonable in structural design and convenient to install, accumulated water on a waterproof layer at the bottom of a toilet is effectively drained, and the two-row pipe fitting has the function of preventing backflow.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary drainage treatment in toilets, in particular to a backflow-proof two-row pipe fitting. Background Art

[0002] Currently, the method of dealing with secondary drainage in bathrooms on the market is mostly to install a special drain for accumulated water at the vertical pipe. For example, the Chinese utility model patent with publication number CN209194678U discloses a concealed drain for accumulated water, so as to drain the water that seeps from the tiles and prevent the accumulated water from becoming moldy and smelly. However, it has the following two common problems: 1. It does not have the function of preventing backflow. If the vertical pipe is blocked, water will flow back due to the opening; 2. The bottom area is too large, and if the ground is uneven, it is easy to cause it to be placed in a place that is not the lowest, which is not conducive to draining accumulated water. Another simpler way is to drill a hole in the vertical pipe and then plug it with radish to seal it, then backfill it, and wait for the radish to rot on its own to form a hole to achieve the second row function, but no one knows whether it is effective.

[0003] To this end, the utility model proposes a two-row anti-backflow pipe fitting, which can solve the problem that traditional water dischargers do not have anti-backflow functions and are difficult to install at the lowest point. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a two-row anti-overflow pipe fitting, which solves the problem that traditional water dischargers do not have anti-overflow function and are difficult to install at the lowest point.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A two-row pipe fitting for preventing backflow includes two rows of sleeves and two rows of fixing seats. The ends of the two rows of fixing seats are provided with sockets, and the two rows of sleeves are inserted into the sockets. Floats are provided inside the two rows of fixing seats. The two rows of sleeves are inserted into the water inlet on the side of the vertical pipe. When the vertical pipe is blocked, causing backflow, the float floats upward and is sealed and connected to the pipe mouth of the two rows of sleeves.

[0007] Furthermore, the two rows of sleeves are eccentric reducers, which include two rows of sleeve bodies. The two rows of sleeve bodies include a large diameter portion and a small diameter portion, and a reducing portion is provided between the small diameter portion and the large diameter portion.

[0008] Furthermore, a group of positioning pins are provided on the end surfaces of the pipe openings where the large diameter portions of the two rows of sleeves cooperate with the two rows of fixing seats.

[0009] Furthermore, the two rows of fixing seats include two rows of fixing seat bodies with cavities, the two rows of fixing seat bodies include expanded diameter sections, the expanded diameter sections are connected to large diameter sections, the large diameter sections are connected to reduced diameter sections, and the reduced diameter sections are connected to arc sections.

[0010] Furthermore, the end of the expanded diameter section is provided with a socket for connecting two rows of sleeves.

[0011] Furthermore, a positioning hole matching the size of the positioning pin is provided in the socket, and when the two rows of sleeves are matched with the two rows of fixing seats, the positioning pin is inserted into the positioning hole.

[0012] Furthermore, a lower drain outlet is provided at the connection between the arc section and the large diameter section.

[0013] Furthermore, a connecting plate for bonding a riser is sleeved on the large diameter section.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1) The technical solution of this utility model is to insert the second row of fixing seats into the drainage riser, which can effectively drain the water accumulated on the waterproof layer at the bottom of the bathroom. By providing a float inside the second row of fixing seats, when the riser is blocked and overflow occurs, the float will float upward and block the opening of the second row of casing, thereby achieving a seal to prevent overflow.

[0016] 2) A positioning pin is provided on the end face of the pipe opening where the large diameter portion of the second row of casing and the second row of fixing seat cooperate. A positioning hole matching the size of the positioning pin is provided in the socket of the second row of fixing seat. When the second row of casing and the second row of fixing seat cooperate, the positioning pin is fixed in the positioning hole. During installation, the lowest end of the eccentric pipe is ensured to be close to the ground, thereby ensuring that no water accumulates above the waterproof layer.

[0017] 3) The two-row pipe fittings of this utility model have a reasonable structural design and are easy to install. They can not only effectively remove water accumulated on the waterproof layer at the bottom of the bathroom, but also have an anti-overflow function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the pipe fitting of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the pipe fitting of the utility model;

[0020] Figure 3 This is a cross-sectional view of the second row of fixing seats of the utility model;

[0021] Figure 4 This is a three-dimensional diagram of the second row of sleeves of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation of two rows of pipe fittings and drainage risers of the utility model;

[0023] Figure 6 for Figure 5 Side view of

[0024] Figure 7 for Figure 5sectional view.

[0025] In the figure, 1. Second row of fixing seats; 1-1. Lower drain outlet; 1-2. Variable diameter section; 1-3. Connecting plate; 1-4. Positioning hole; 1-5. Socket; 1-6. Expanded diameter section; 1-7. Large diameter section; 1-8. Arc section; 2. Float; 3. Second row of casing; 3-1. Positioning pin; 3-2. Variable diameter section; 3-3. Large diameter section; 3-4. Small diameter section; 4. Vertical pipe. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings, but the scope of protection of the present invention is not limited to the described scope.

[0027] Please refer to Figure 1-2 A two-row anti-overflow pipe fitting includes two rows of sleeves 3 and two rows of fixed seats 1. The ends of the two rows of fixed seats 1 are provided with sockets 1-5. The two rows of sleeves 3 are plugged into the sockets 1-5. The interior of the two rows of fixed seats 1 is provided with a float 2. The two rows of sleeves are plugged into the water inlet on the side of the riser 4. Please refer to Figure 5-7 The second row of pipes of the utility model cooperates with the vertical pipe 4. When the vertical pipe 4 is blocked, causing overflow, the float 2 floats upward and is sealed and connected to the pipe mouth of the second row of sleeves 3, achieving the function of sealing and preventing overflow.

[0028] Please refer to Figure 4 The second row of casing 3 is an eccentric reducer, which includes two rows of casing bodies. The second row of casing bodies include a large diameter part 3-3 and a small diameter part 3-4. A reducing part 3-2 is provided between the small diameter part 3-4 and the large diameter part 3-3. Its main function is to make the mouth of the second row of casing close to the waterproof layer and remove the lowest water accumulation. In addition, some of the slope is for the fall of the float 2.

[0029] In order to ensure that the lowest end of the eccentric is close to the ground during installation, so as to ensure that no water accumulates above the waterproof layer, a set of positioning pins 3-1 are provided on the pipe end surface where the large diameter portion 3-3 of the second row of sleeves 3 matches the second row of fixing seats 1. The positioning pins 3-1 are matched with the second row of bases.

[0030] Please refer to Figure 3 The second row fixing seat 1 includes a second row fixing seat body with a cavity, and the second row fixing seat body includes an expanded diameter section 1-6, the expanded diameter section 1-6 is connected to the large diameter section 1-7, the large diameter section 1-7 is connected to the reduced diameter section 1-2, and the reduced diameter section 1-2 is connected to the arc section 1-8.

[0031] Considering that the drain outlet of the vertical pipe 4 faces downward to avoid being blocked by something, a lower drain outlet 1-1 is provided at the connection between the arc section 1-8 and the large diameter section 1-7.

[0032] The variable diameter section 1-2 provided in the utility model mainly serves to prevent the discharged matter in the vertical pipe 4 from being easily stuck on it.

[0033] The end of the expanded diameter section 1-6 is provided with a socket 1-5 for connecting the second row of sleeves 3, and the socket 1-5 is provided with a positioning hole 1-4 that matches the size of the positioning pin 3-1. When the second row of sleeves 3 is matched with the second row of fixing seats 1, the positioning pin 3-1 is inserted into the positioning hole 1-4.

[0034] The main purpose of the socket 1-5 and the positioning hole 1-4 is to facilitate installation when matched with the second row of sleeves 3.

[0035] The large diameter section 1-7 is sleeved with a connection plate 1-3 for bonding the riser 4. The connection plate 1-3 close to the pipe is mainly used for applying glue to make it stick to the surface of the riser.

Claims

1. A two-row anti-overflow pipe fitting, characterized in that The invention comprises two rows of sleeves (3) and two rows of fixed seats (1), wherein the ends of the two rows of fixed seats (1) are provided with sockets (1-5), the two rows of sleeves (3) are plugged into the sockets (1-5), a float (2) is provided inside the two rows of fixed seats (1), and the two rows of sleeves (3) are plugged into the water inlet on the side of the vertical pipe (4). When the vertical pipe (4) is blocked, causing overflow, the float (2) floats upward and is sealed with the pipe opening of the two rows of sleeves (3).

2. The anti-backflow double-row pipe fitting according to claim 1, characterized in that The two-row sleeve (3) is an eccentric reducer, comprising two-row sleeve bodies, the two-row sleeve bodies comprising a large-diameter portion (3-3) and a small-diameter portion (3-4), and a reducing portion (3-2) is provided between the small-diameter portion (3-4) and the large-diameter portion (3-3).

3. The anti-backflow double-row pipe fitting according to claim 2, characterized in that A group of positioning pins (3-1) are provided on the end surfaces of the pipe openings where the large diameter portions (3-3) of the two rows of sleeves (3) cooperate with the two rows of fixing seats (1).

4. The anti-backflow double-row pipe fitting according to claim 3, characterized in that The two-row fixing seat (1) comprises a two-row fixing seat body having a cavity, the two-row fixing seat body comprising an expanded diameter section (1-6), the expanded diameter section (1-6) being connected to a large diameter section (1-7), the large diameter section (1-7) being connected to a reduced diameter section (1-2), and the reduced diameter section (1-2) being connected to an arc section (1-8).

5. The anti-backflow double-row pipe fitting according to claim 4, characterized in that The end of the expanded diameter section (1-6) is provided with a socket (1-5) for connecting two rows of sleeves (3).

6. The anti-backflow double-row pipe fitting according to claim 5, characterized in that A positioning hole (1-4) having a size matching that of the positioning pin (3-1) is provided in the socket (1-5); when the two rows of sleeves (3) are matched with the two rows of fixing seats (1), the positioning pin (3-1) is inserted into the positioning hole (1-4).

7. The anti-backflow double-row pipe fitting according to claim 4, characterized in that A lower drain outlet (1-1) is provided at the connection between the arc section (1-8) and the large diameter section (1-7).

8. The anti-backflow double-row pipe fitting according to claim 4, characterized in that The large diameter section (1-7) is sleeved with a connecting plate (1-3) for bonding the riser (4).

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