Odor control device for a drain

Abstract

The device comprises a water outlet pipe, a barrel-shaped drain body, a water seal seat, a cover plate and a water inlet channel.

Description

Technical Field

[0001] This utility model relates to an odor-proof device for a drain. Background Technology

[0002] Chinese patent document CN 209509100 U, published on October 18, 2019, discloses an odor-proof sink drainer. It includes a drain cup body with a connecting pipe at its lower end. A detachable sealing device is connected to the lower opening of the drain cup body, used to open or close the lower opening. The sealing device includes a cylinder, the upper end of which communicates with the inner hole of the drain cup body, and the lower end of which communicates with the drain pipe. A bottom cover is rotatably connected to the lower end of the cylinder, used to close or open the lower end of the cylinder. A magnetic mechanism is provided on the side wall of the lower end of the cylinder, used to apply force to the bottom cover, keeping it closed. This drainer has poor odor-proof performance and a complex structure, which is unsatisfactory to users and therefore requires improvement. Utility Model Content

[0003] The purpose of this invention is to provide an odor-proof device for a drain with good odor-proof effect, so as to overcome the shortcomings of the prior art.

[0004] An odor-proof device for a drain assembly designed for this purpose includes a water outlet pipe. Its structural feature is that it also includes a barrel-shaped drain assembly body. One end of the water outlet pipe is inserted into the drain assembly body from the bottom. A water seal seat, connected to the drain assembly body, is inserted into the drain assembly body and suspended on the water outlet pipe. The water seal seat includes an upper inlet chamber and a lower open chamber. The outlet of the inlet chamber is located on the upper side wall of the water seal seat. The inlet of the inlet chamber is connected to the top of the water seal seat. The openings are connected, and a cover plate is hinged to the outer wall of the upper part of the water seal seat. The cover plate is located in front of the water outlet of the water inlet chamber. The bottom edge of the opening chamber is kept at a certain distance from the inner bottom surface of the drain body. One end of the water outlet pipe is inserted into the opening chamber and connected to the opening chamber. The outer wall of the water seal seat and the inner wall of the drain body together form the water inlet channel. The water inlet chamber is connected to the opening chamber through the water inlet channel. The lowest edge of the top opening of the water outlet pipe is higher than the highest edge of the bottom of the opening chamber.

[0005] Furthermore, the odor-proof device of the drain also includes a control device for controlling the cover plate to block or open the outlet of the water inlet chamber. The control device includes a hinge seat disposed on the upper outer wall of the water seal seat. The hinge seat is located above or below the outlet of the water inlet chamber, and the cover plate is rotated clockwise or counterclockwise through the hinge seat.

[0006] Furthermore, two vertical positioning protrusions are provided on the outer wall of the upper part of the water seal seat. The two positioning protrusions are located on the left and right sides of the water outlet of the water inlet chamber, respectively. Positioning holes are provided on the positioning protrusions above or below the water outlet of the water inlet chamber, and a rotating shaft inserted into the positioning hole is provided on the cover plate.

[0007] Furthermore, the control device also includes a counterweight, with one end of the cover plate connected to a hinge seat located above the outlet of the water inlet chamber, and the counterweight disposed at the other end of the cover plate.

[0008] Furthermore, the control device also includes a first magnet and a second magnet that are magnetically attracted to each other. One end of the cover plate is connected to a hinge seat located above the outlet of the water inlet chamber. The first magnet is disposed at the other end of the cover plate, and the second magnet is disposed on the outer wall of the upper part of the water seal seat and faces the side where the first magnet is located.

[0009] Furthermore, the control device also includes an elastic tension spring. One end of the cover plate is connected to a hinge seat located below the outlet of the water inlet chamber. Two first fixing seats are provided on the outer wall of the upper part of the water seal seat. The two first fixing seats are located on the left and right sides of the outlet of the water inlet chamber, respectively. A second fixing seat corresponding to the first fixing seat is provided on the outer wall of the cover plate. The first fixing seat and the second fixing seat are connected by an elastic tension spring.

[0010] Furthermore, the water inlet chamber has two or more outlets, and the cover plate is set in a manner corresponding to the water outlets of the water inlet chamber.

[0011] Furthermore, the inner wall of the water inlet chamber is provided with multiple guide slopes, which are inclined and / or curved.

[0012] Furthermore, the inner wall of the bottom of the drain body, the bottom of the opening chamber, and the outer wall of the top of the outlet pipe together form a middle channel. The water inlet channel is connected to the opening chamber through the middle channel. The highest height of the water passage surface of the middle channel is lower than the lowest height of the water passage surface of the top opening of the outlet pipe.

[0013] Furthermore, an assembly step is provided on the inner wall of the top of the drain body, and an assembly boss is provided on the outer wall of the top of the water seal seat, which is pressed onto the assembly step.

[0014] The cover plate in this utility model can not only block or guide drainage, but also block odors and bed bugs. The height difference between the water seal seat, the main body of the drain, and the outlet pipe forms an odor-proof water seal. The combination of the cover plate and the odor-proof water seal achieves a double odor-proof effect. Furthermore, the structure of the water seal seat and the main body of the drain is simple, and the assembly speed between the two is fast, making it convenient for users to use. This effectively improves the odor-proof effect and convenience of the product.

[0015] The working principle is as follows: After drainage begins, when the pressure exerted by the water in the inlet chamber on the cover plate is greater than the weight of the cover plate itself, the cover plate is in the open state. After the water enters the middle channel through the inlet channel from the inlet chamber, the water will slowly accumulate in the middle channel. When the water surface in the middle channel exceeds the highest height of the middle channel, the water gradually enters the opening chamber. When the water surface in the opening chamber exceeds the lowest height of the water surface at the top opening of the outlet pipe, the water is discharged from the outlet pipe.

[0016] After drainage is completed, when the pressure exerted by the remaining water in the inlet chamber on the cover is less than the weight of the cover itself (or when no water enters the inlet chamber), the cover is in a closed state. The water level in the opening chamber drops to the lowest height of the water level at the top opening of the outlet pipe. At this time, the middle channel is blocked by water, and the water in the opening chamber cannot be discharged from the outlet pipe. This part of the water forms an odor-proof water seal, preventing pests and odors from the sewer from flowing back into the drain body. The closed cover also isolates the inlet chamber from the inside of the drain body, preventing sewage backflow. The cover and the odor-proof water seal provide a double odor-proof effect.

[0017] However, if the initial drainage volume is low, i.e., the water level in the middle channel is lower than the bottom edge of the opening chamber, an odor-proof water seal cannot be formed even after drainage is completed. Pests and odors from the sewer will flow back into the main body of the drainer through the outlet pipe. At this time, since the cover is in a closed state, it effectively prevents the pests and odors inside the main body of the drainer from flowing back into the inlet chamber. The cover replaces the odor-proof water seal to play the role of preventing odors and preventing backflow.

[0018] In summary, this utility model has the characteristic of good odor prevention effect. Attached Figure Description

[0019] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the water seal seat in this utility model.

[0021] Figure 3 This is a cross-sectional structural diagram of the water seal seat in the second embodiment of this utility model.

[0022] Figure 4 This is a cross-sectional structural diagram of the water seal seat in the third embodiment of this utility model.

[0023] Figure 5 This is a cross-sectional structural diagram of the water seal seat in the fourth embodiment of this utility model.

[0024] In the diagram: 1 is the main body of the drain assembly; 1.1 is the mounting step; 2 is the water seal seat; 2.1 is the water inlet chamber; 2.2 is the opening chamber; 2.3 is the mounting boss; 2.4 is the positioning boss; 2.5 is the positioning hole; 3 is the water outlet pipe; 4 is the cover plate; 5 is the water inlet channel; 6 is the intermediate channel; 7 is the first magnet; 8 is the second magnet; 9 is the elastic tension spring; 10 is the counterweight. The arrows in the diagram indicate the direction of water flow. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] See Figures 1-2 The odor-proof device of this drain includes a water outlet pipe 3 and a barrel-shaped drain body 1. One end of the water outlet pipe 3 is inserted into the drain body 1 from the bottom. A water seal seat 2, which is connected to the drain body 1, is inserted into the drain body 1 and suspended on the water outlet pipe 3. The water seal seat 2 includes an inlet chamber 2.1 located at the upper part and an opening chamber 2.2 located at the lower part. The outlet of the inlet chamber 2.1 is located on the upper side wall of the water seal seat 2, and the inlet of the inlet chamber 2.1 is connected to the top opening of the water seal seat 2. A cover plate 4 is hinged to the upper outer wall of the 2. The cover plate 4 is located in front of the outlet of the water inlet chamber 2.1. The bottom edge of the open mouth chamber 2.2 is kept at a certain distance from the inner bottom surface of the drain body 1. One end of the outlet pipe 3 is inserted into the open mouth chamber 2.2 and connected to the open mouth chamber 2.2. The outer wall of the water seal seat 2 and the inner wall of the drain body 1 together form the water inlet channel 5. The water inlet chamber 2.1 is connected to the open mouth chamber 2.2 through the water inlet channel 5. The lowest edge of the top opening of the outlet pipe 3 is higher than the highest edge of the bottom of the open mouth chamber 2.2.

[0028] The odor-proof device of the drain also includes a control device for controlling the cover plate 4 to block or open the outlet of the water inlet chamber 2.1. The control device includes a hinge seat provided on the upper outer wall of the water seal seat 2. The hinge seat is located above or below the outlet of the water inlet chamber 2.1. The cover plate 4 is rotated clockwise or counterclockwise through the hinge seat.

[0029] Two vertical positioning protrusions 2.4 are provided on the outer wall of the upper part of the water seal seat 2. The two positioning protrusions 2.4 are located on the left and right sides of the water outlet of the water inlet chamber 2.1, respectively. Positioning holes 2.5 are provided on the positioning protrusions 2.4, which are located above or below the water outlet of the water inlet chamber 2.1. A rotating shaft is provided on the cover plate 4 to be inserted into the positioning hole 2.5.

[0030] The inner wall of the water inlet chamber 2.1 is provided with multiple guide slopes, which are inclined and / or curved.

[0031] In this embodiment, the smoothness of water flow is improved by using a guide slope.

[0032] The inner wall at the bottom of the main body 1 of the drainer, the bottom of the opening chamber 2.2, and the outer wall at the top of the outlet pipe 3 together form a middle channel 6. The water inlet channel 5 is connected to the opening chamber 2.2 through the middle channel 6. The highest height of the water passage surface of the middle channel 6 is lower than the lowest height of the water passage surface of the top opening of the outlet pipe 3.

[0033] An assembly step 1.1 is provided on the inner wall of the top of the drain body 1, and an assembly boss 2.3 is provided on the outer wall of the top of the water seal seat 2. The assembly boss 2.3 is pressed onto the assembly step 1.1.

[0034] In this embodiment, the product is small in size and simple in structure. Assembly can be completed quickly by simply placing the water seal seat into the main body of the drainer, pressing it onto the assembly step by the assembly boss, and connecting pipes to the upper and lower ends of the main body of the drainer.

[0035] Because the pipes of this product are connected vertically after assembly, it is suitable for installation in areas with ample assembly space, located below the bathtub.

[0036] Second Embodiment

[0037] See Figure 3 The control device also includes a counterweight 10, and one end of the cover plate 4 is connected to a hinge seat located above the outlet of the water inlet chamber 2.1.

[0038] In this embodiment, when the force exerted by the water in the water inlet chamber on the cover plate is greater than the force exerted by the counterweight on the cover plate, the cover plate is in the open state; when the force exerted by the water in the water inlet chamber on the cover plate is less than the force exerted by the counterweight on the cover plate, the cover plate is in the closed state.

[0039] More specifically, the counterweights are steel balls.

[0040] The remaining parts not described herein are described in the first embodiment and will not be repeated here.

[0041] Third Embodiment

[0042] See Figure 4 The control device also includes a first magnet 7 and a second magnet 8 that are magnetically attracted to each other. One end of the cover plate 4 is connected to a hinge seat located above the outlet of the water inlet chamber 2.1. The first magnet 7 is disposed at the other end of the cover plate 4, and the second magnet 8 is disposed on the outer wall of the upper part of the water seal seat 2 and faces the side where the first magnet 7 is located.

[0043] When the force exerted by the water in the inlet chamber on the cover plate is greater than the attraction force between the first and second magnets, the cover plate is in the open state. When the opening angle of the cover plate is large, the distance between the first and second magnets is too far to form a magnetic attraction. When the force exerted by the water in the inlet chamber on the cover plate is less than the weight of the cover plate itself, the cover plate uses its own weight to flip down and reset. When the flip angle gradually decreases, the distance between the first and second magnets reaches the distance for mutual magnetic attraction. If at this time the force exerted by the water in the inlet chamber on the cover plate is less than the attraction force between the first and second magnets (or the inlet chamber is in a state of no water intake), the cover plate is in the closed state.

[0044] The remaining parts not described herein are described in the first embodiment and will not be repeated here.

[0045] Fourth embodiment

[0046] See Figure 5 The control device also includes an elastic tension spring 9. One end of the cover plate 4 is connected to a hinge seat located below the outlet of the water inlet chamber 2.1. Two first fixing seats are provided on the outer wall of the upper part of the water seal seat 2. The two first fixing seats are respectively located on the left and right sides of the outlet of the water inlet chamber 2.1. A second fixing seat corresponding to the first fixing seat is provided on the outer wall of the cover plate 4. The first fixing seat and the second fixing seat are connected by the elastic tension spring 9.

[0047] When the force exerted by the water in the inlet chamber on the cover plate is greater than the force exerted by the elastic spring on the cover plate, the elastic spring stretches and the cover plate is in the open state; when the force exerted by the water in the inlet chamber on the cover plate is less than the force exerted by the elastic spring on the cover plate, the elastic spring contracts and resets, and the cover plate is in the closed state.

[0048] The remaining parts not described herein are described in the first embodiment and will not be repeated here.

[0049] Fifth Embodiment

[0050] In this embodiment, the water inlet chamber 2.1 has two or more outlets, and the cover plate 4 is set corresponding to the outlets of the water inlet chamber 2.1.

[0051] It can adaptively add multiple water outlets according to user needs, achieving a multi-faceted water discharge effect and improving drainage efficiency.

[0052] The remaining parts not described herein are described in the first embodiment and will not be repeated here.

[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An odor-proof device for a drain, comprising a drain pipe (3), characterized in that: It also includes a barrel-shaped drain body (1), one end of the outlet pipe (3) is inserted into the drain body (1) from the bottom, and the water seal seat (2) connected to the drain body (1) is inserted into the drain body (1) and suspended on the outlet pipe (3). The water seal seat (2) includes an inlet chamber (2.1) located at the top and an opening chamber (2.2) located at the bottom. The outlet of the inlet chamber (2.1) is located on the side wall of the upper part of the water seal seat (2), and the inlet of the inlet chamber (2.1) is connected to the top opening of the water seal seat (2). The upper outer wall of the water seal seat (2) is hinged. There is a cover plate (4), which is located in front of the outlet of the water inlet chamber (2.1). The bottom edge of the open mouth chamber (2.2) is kept at a certain distance from the inner bottom surface of the drain body (1). One end of the outlet pipe (3) is inserted into the open mouth chamber (2.2) and connected to the open mouth chamber (2.2). The outer wall of the water seal seat (2) and the inner wall of the drain body (1) together form the water inlet channel (5). The water inlet chamber (2.1) is connected to the open mouth chamber (2.2) through the water inlet channel (5). The lowest edge of the top opening of the outlet pipe (3) is higher than the highest edge of the bottom of the open mouth chamber (2.2).

2. The odor-proof device for the drain assembly according to claim 1, characterized in that: It also includes a control device for controlling the cover plate (4) to block or open the outlet of the inlet chamber (2.1), the control device including a hinge seat provided on the upper outer wall of the water seal seat (2), the hinge seat being located above or below the outlet of the inlet chamber (2.1), the cover plate (4) being rotated clockwise or counterclockwise via the hinge seat.

3. The odor-proof device for the drain assembly according to claim 2, characterized in that: Two vertical positioning bosses (2.4) are provided on the outer wall of the upper part of the water seal seat (2). The two positioning bosses (2.4) are located on the left and right sides of the water outlet of the water inlet chamber (2.1). Positioning holes (2.5) are provided on the positioning bosses (2.4) above or below the water outlet of the water inlet chamber (2.1). A rotating shaft is provided on the cover plate (4) to be inserted into the positioning hole (2.5).

4. The odor-proof device for the drain assembly according to claim 2, characterized in that: The control device also includes a counterweight (10), one end of the cover plate (4) is connected to a hinge seat located above the outlet of the water inlet chamber (2.1), and the counterweight (10) is located at the other end of the cover plate (4).

5. The odor-proof device for the drain assembly according to claim 2, characterized in that: The control device also includes a first magnet (7) and a second magnet (8) that are magnetically attracted to each other. One end of the cover plate (4) is connected to a hinge seat located above the outlet of the water inlet chamber (2.1). The first magnet (7) is located at the other end of the cover plate (4), and the second magnet (8) is located on the outer wall of the upper part of the water seal seat (2) and faces the side where the first magnet (7) is located.

6. The odor-proof device for a drain assembly according to claim 2, characterized in that: The control device also includes an elastic tension spring (9). One end of the cover plate (4) is connected to a hinge seat located below the outlet of the water inlet chamber (2.1). Two first fixing seats are provided on the outer wall of the upper part of the water seal seat (2). The two first fixing seats are located on the left and right sides of the outlet of the water inlet chamber (2.1) respectively. A second fixing seat corresponding to the first fixing seat is provided on the outer wall of the cover plate (4). The first fixing seat and the second fixing seat are connected by an elastic tension spring (9).

7. The odor-proof device for a drain assembly according to claim 1, characterized in that: The water inlet chamber (2.1) has two or more outlets, and the cover plate (4) is set to correspond to the water outlets of the water inlet chamber (2.1).

8. The odor-proof device for a drain assembly according to claim 1, characterized in that: The inner wall of the water inlet chamber (2.1) is provided with multiple guide slopes, which are inclined and / or curved.

9. The odor-proof device for a drain assembly according to claim 1, characterized in that: The inner wall at the bottom of the main body (1) of the drainer, the bottom of the opening chamber (2.2) and the outer wall at the top of the outlet pipe (3) together form a middle channel (6). The water inlet channel (5) is connected to the opening chamber (2.2) through the middle channel (6). The highest height of the water passage surface of the middle channel (6) is lower than the lowest height of the water passage surface of the top opening of the outlet pipe (3).

10. The odor-proof device for a drain assembly according to claim 1, characterized in that: An assembly step (1.1) is provided on the inner wall of the top of the drain body (1), and an assembly boss (2.3) is provided on the outer wall of the top of the water seal seat (2). The assembly boss (2.3) is pressed onto the assembly step (1.1).

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