One-way odor backflow prevention blow-off pipe
By using a sealing plate structure that combines gravity blocks and magnets in the sewage pipe, the problem of poor valve plate closure caused by fatigue of elastic components is solved, realizing automatic closure of the sealing plate and preventing backflow of odor gas, thus reducing maintenance costs and complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-24
AI Technical Summary
The existing check valves in sewage pipes rely on elastic components, which leads to a decline in elasticity after prolonged use, affecting the valve plate's closing effect, increasing maintenance costs, and raising the risk of indoor odor pollution.
The sealing plate structure uses a combination of gravity blocks and magnets to achieve automatic closure of the sealing plate by utilizing the difference in gravity and magnetic attraction, ensuring smooth discharge of sewage and preventing backflow of odors.
It improves the tightness and stability of the sealing plate and the bottom port of the sewage pipe, reduces maintenance needs, enhances the effect of preventing odor backflow, and reduces maintenance complexity.
Smart Images
Figure CN224031833U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sewage pipe technical field especially relates to a one -way anti -odor gas backflow sewage pipe. BACKGROUND
[0002] In modern building drainage system, the design and performance of sewage pipe are directly related to indoor air quality and environmental health. The traditional sewage pipe usually needs to have the function of one -way anti -odor gas backflow to prevent the odor in the sewage pipe from flowing back into the room through the sewage pipe. In order to realize this function, the pipeline check valve (also known as back check valve) is generally used as the key component of anti -odor gas backflow in the prior art.
[0003] The existing check valve design usually relies on elastic members (such as springs or rubber pads) to realize the rotary reset of the valve plate. When the sewage flow direction is normal, the valve plate is opened to allow the sewage to flow out smoothly. When the sewage flow direction changes, the valve plate closes quickly by relying on the action of the elastic member to prevent odor backflow. However, there are certain limitations in using elastic members as the power source for valve plate reset: after a long time of use, the elastic member may show signs of fatigue, resulting in a decrease in its elastic properties, which affects the closing effect of the valve plate. This may cause the backflow protection function to fail, increasing the risk of indoor odor pollution. In addition, due to the performance degradation of the elastic member, the traditional check valve needs to be regularly inspected and replaced during use, which increases the user's maintenance cost and use complexity.
[0004] To solve the above problems, it is urgent to provide a one -way anti -odor gas backflow sewage pipe. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a one -way anti -odor gas backflow sewage pipe to solve the problems raised in the background art.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: a one -way anti -odor gas backflow sewage pipe, comprising:
[0007] The sewage pipe body is fixedly provided with a U-shaped frame at the bottom.
[0008] The cylindrical pipe is rotatably connected to the bottom of the U-shaped frame, and the outer wall of the cylindrical pipe is fixedly connected with a sealing plate matched with the bottom end port of the sewage pipe body.
[0009] The gravity block is fixedly connected to one side of the cylindrical pipe away from the sealing plate, the second magnet is fixedly connected to one side of the sewage pipe body close to the U-shaped frame, the first magnet is fixedly connected to one side of the U-shaped frame opposite to the gravity block, and the opposite sides of the second magnet and the first magnet are opposite magnetic poles.
[0010] Preferably, the bottom of the side wall of the drain pipe body is provided with an inner recess, the top end of the U-shaped frame is fixedly connected with the top of the inner recess, and the outer wall of the drain pipe body close to the bottom end port is fixedly connected with a plurality of rubber rings at intervals from top to bottom.
[0011] Preferably, the U-shaped frame is a U-shaped frame with an open lower end, the cylindrical pipe is rotationally connected to the inner bottom of the U-shaped frame, the two parts of the gravity block extend to the two side positions of one side of the U-shaped frame, and the end face of the gravity block is in the form of an incomplete circular ring.
[0012] Preferably, the bottom end port of the drain pipe body is provided with an inclined end face, and the bottom end of the inclined end face is fixedly connected with a sealing gasket.
[0013] Preferably, the side of the sealing plate close to the bottom end of the drain pipe body is fixedly connected with a stainless steel sheet, and the side of the stainless steel sheet away from the sealing plate is provided with a smooth coating.
[0014] Preferably, the weight of the gravity block is greater than the weight of the sealing plate, and the sum of the width of the gravity block and the cylindrical pipe is less than the width of the inner recess.
[0015] Compared with the prior art, the technical effects of the utility model are:
[0016] The utility model discloses a cylindrical pipe is rotationally installed on the U-shaped frame at the bottom position of the drain pipe body to connect the sealing plate, and the gravity block is arranged on the outer wall of the U-shaped frame, so that the cylindrical pipe can be automatically attached to the bottom end port position of the drain pipe body by the weight difference, and the first magnet and the second magnet arranged between the gravity block and the U-shaped frame are attracted to each other, so as to ensure the tightness of the sealing plate and the bottom end port of the drain pipe body, thereby improving the effect of preventing odor backflow. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 It is a front view of the structure of the utility model.
[0018] Fig. 2 It is a three-dimensional structure schematic view of the U-shaped frame of the utility model.
[0019] Fig. 3 It is a three-dimensional structure schematic view of the sealing plate of the utility model.
[0020] In the drawing: 100, drain pipe body; 101, inner recess; 102, rubber ring; 103, inclined end face; 104, sealing plate; 105, U-shaped frame; 106, cylindrical pipe; 107, gravity block; 108, first magnet; 109, second magnet; 110, stainless steel sheet; 111, sealing gasket. DETAILED DESCRIPTION
[0021] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0022] The utility model provides a kind of as Figs. 1-3The utility model provides an one -way anti -odor gas backflow blow -off pipe, including blow -off pipe main part 100, the bottom of blow -off pipe main part 100 side wall is equipped with inner recess 101, and the upper portion of inner recess 101 is inclined, and the lower portion is vertical straight face shape, can reserve installation area for the installation of U -shaped frame 105, make the bottom of blow -off pipe main part 100 can be inserted into the lower connecting pipeline and carry out the transport of sewage, and the outer wall of the bottom end of blow -off pipe main part 100 is fixedly connected with a plurality of rubber rings 102 from top to bottom in interval, by the setting of rubber ring 102, when the bottom of blow -off pipe main part 100 is inserted into the lower diameter larger sewage pipeline and carries out splicing, can seal between the bottom of blow -off pipe main part 100 and the inner wall of lower pipeline, enhance the leakproofness, improve the stability of sewage transmission, the bottom of blow -off pipe main part 100 is fixedly provided with U -shaped frame 105, and the top of U -shaped frame 105 is fixedly connected with the top of inner recess 101, and cylindrical pipe 106 is rotatably connected to the bottom of U -shaped frame 105, and the outer wall of cylindrical pipe 106 is fixedly connected with the sealing plate 104 that is attached to the bottom end port of blow -off pipe main part 100, and gravity block 107 is fixedly connected to the side of cylindrical pipe 106 away from sealing plate 104, and the weight of gravity block 107 is greater than the weight of sealing plate 104, and the width sum of gravity block 107 and cylindrical pipe 106 is less than the width of inner recess 101, utilize the setting gravity block 107 on the side of cylindrical pipe 106 away from sealing plate 104, utilize the weight difference between gravity block 107 and sealing plate 104, make sealing plate 104, cylindrical pipe 106 and gravity block 107 combination eccentric structure, like this in initial state, sealing plate 104 can utilize the weight of gravity block 107 with cylindrical pipe 106 upward rotation, make sealing plate 104 keep with the attachment state of inner recess 101 bottom end port in initial state, reach the backflow prevention effect of odor, and when sewage flows down from blow -off pipe main part 100, utilize the gravity and impact force of sewage and make the weight of sealing plate 104 increase, thereby drive gravity block 107 with cylindrical pipe 106 upward rotation, sealing plate 104 downward rotation will blow -off pipe main part 100 bottom end port open, satisfy the downward delivery of sewage, like this can utilize lever principle and realize the automatic closure of sealing plate 104 in blow -off pipe main part 100 bottom end port.The second magnet 109 is fixedly connected to one side of the drain pipe body 100 close to the U-shaped frame 105, the first magnet 108 is fixedly connected to one side of the bottom of the U-shaped frame 105 opposite to the gravity block 107, and the opposite sides of the second magnet 109 and the first magnet 108 are opposite magnetic poles. When the sealing plate 104 is attached to the bottom end port of the drain pipe body 100, the side wall of the gravity block 107 is attached to the side wall of the U-shaped frame 105, and the magnetic attraction of the first magnet 108 and the second magnet 109 is matched, so that when the side wall of the gravity block 107 is rotated to the position close to the side wall of the U-shaped frame 105, the sealing plate 104 can be stably closed with the bottom end of the drain pipe body 100 by the magnetic attraction between the second magnet 109 and the first magnet 108. Thus, the problem that the weight of the sealing plate 104 increases due to dirt and sundries adhered to the outer wall of the sealing plate 104 after long-term use, and the bottom end port of the drain pipe body 100 cannot be closed, can be avoided, so that the one-way sealing effect of the sealing plate 104 on the bottom end port of the drain pipe body 100 is better, and the anti-backflow effect is better.
[0023] Further, the U-shaped frame 105 is in the shape of a U with an open lower end, the cylindrical pipe 106 is rotatably connected to the inner bottom position of the U-shaped frame 105, the gravity block 107 extends to the two side positions of one side of the U-shaped frame 105, and the end face of the gravity block 107 is in the shape of an incomplete ring. The incomplete ring-shaped gravity block 107 can cooperate with the side wall of the U-shaped frame 105, so that when the cylindrical pipe 106 is rotated to the two end positions, the side wall of the gravity block 107 can be attached to the outer wall of the U-shaped frame 105, so that the side wall of the U-shaped frame 105 does not block the movement of the sealing plate 104 closing the port of the drain pipe body 100, and at the same time, the first magnet 108 and the second magnet 109 can be smoothly attached.
[0024] Further, the bottom end port of the drain pipe body 100 is provided with an inclined end face 103, the inclined end face 103 is fixedly connected to the sealing gasket 111 at the bottom end, and the stainless steel sheet 110 is fixedly connected to one side of the sealing plate 104 close to the bottom end of the drain pipe body 100. The side of the stainless steel sheet 110 away from the sealing plate 104 is provided with a smooth coating. The inclined end face 103 provided at the bottom end port of the drain pipe body 100 can increase the sealing performance after being attached to the sealing plate 104, and the bottom end port of the drain pipe body 100 is provided in the shape of an inclined surface, so that the sealing plate 104 can be more conveniently closed with the bottom end port of the drain pipe body 100. In addition, the stainless steel sheet 110 is provided on one side of the sealing plate 104 close to the port of the drain pipe body 100, and the smoothness and corrosion resistance of the stainless steel material can prevent the sealing plate 104 from being easily stained, so as to ensure the closing effect of the sealing plate 104 on the port of the drain pipe body 100.
[0025] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A one-way anti-backup odor control drain, characterized by, include: The main body of the sewage pipe (100) is provided with a U-shaped frame (105) fixed at the bottom; A cylindrical tube (106) is rotatably connected to the bottom of a U-shaped frame (105), and a sealing plate (104) that fits against the bottom end of the main body of the sewage pipe (100) is fixedly connected to the outer wall of the cylindrical tube (106). A gravity block (107) is fixedly connected to the cylindrical tube (106) on the side away from the sealing plate (104). A second magnet (109) is fixedly connected to the side of the main body (100) of the sewage pipe near the U-shaped frame (105). A first magnet (108) is fixedly connected to the bottom of the U-shaped frame (105) on the side facing the gravity block (107). The second magnet (109) and the first magnet (108) have opposite magnetic poles on opposite sides.
2. The one-way odor-draught-back vented drain according to claim 1, wherein, The bottom of the side wall of the main body of the sewage pipe (100) is provided with a concave part (101), the top of the U-shaped frame (105) is fixedly connected to the top of the concave part (101), and a plurality of rubber rings (102) are fixedly connected from top to bottom on the outer wall of the main body of the sewage pipe (100) near the bottom port.
3. A one-way odor-preventing backflow sewage pipe according to claim 2, characterized in that, The U-shaped frame (105) is U-shaped with an open bottom. The cylindrical tube (106) is rotatably connected to the bottom of the inner side of the U-shaped frame (105). The two parts of the gravity block (107) extend to the two sides of one side of the U-shaped frame (105), and the end face of the gravity block (107) is incompletely circular.
4. A one-way odor-preventing backflow sewage pipe according to claim 3, characterized in that, The bottom end of the main body (100) of the sewage pipe is provided with a beveled end face (103), and a sealing gasket (111) is fixedly connected to the bottom end of the beveled end face (103).
5. A one-way odor-preventing backflow sewage pipe according to claim 4, characterized in that, A stainless steel sheet (110) is fixedly connected to the side of the sealing plate (104) near the bottom of the sewage pipe body (100), and the side of the stainless steel sheet (110) away from the sealing plate (104) is provided with a smooth coating.
6. A one-way odor-preventing backflow sewage pipe according to claim 5, characterized in that, The weight of the gravity block (107) is greater than the weight of the sealing plate (104), and the sum of the widths of the gravity block (107) and the cylindrical tube (106) is less than the width of the concave portion (101).