Anti-backflow structure of rain and sewage diversion pipe

Abstract

An anti-backflow structure of a rain and sewage diversion pipe relates to the technical field of drainage and comprises a pipeline, an inner pipe is fixedly connected to the inner wall of the pipeline, two symmetrically arranged support frames are fixedly connected to the inner wall of the pipeline, a rotating shaft is arranged between the two support frames, and a spiral blade is fixedly sleeved on the surface of the rotating shaft. And a water blocking mechanism and a triggering mechanism are arranged in the pipeline. The triggering mechanism can sensitively respond to the change of water flow, when sewage or rainwater has the trend of flowing backwards, impact force and buoyancy of water flow in a pipeline can make a counterweight round block and a sliding block generate displacement, through meshing transmission between gears, a rotating pipe and a rotating rod are driven to rotate, a first cover plate and a second cover plate rapidly act to block the pipeline, and the pipeline is sealed. And then when the water flowing opening is blocked by the water pipe, sewage and rainwater are effectively prevented from flowing backwards in a double-layer mode, and compared with a traditional mode depending on manual operation or simple valve control, the reaction speed is greatly increased, backward flowing is reduced, and stable operation of the rainwater and sewage diversion system is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to drainage technical field, concretely is a rain and sewage shunt pipe's anti -backing up structure. BACKGROUND

[0002] In the rain and sewage shunt system, the original rain and sewage pipeline and the villagers newly built domestic sewage pipe, rainwater pipe interweave and overlap due to the limited space in the village lane, leading to frequent problems such as unreasonable pipeline slope, pipe diameter mismatch, interface non-standardization.

[0003] When the rainy season comes, due to insufficient pipeline drainage capacity or unreasonable layout, rainwater or sewage is easy to form backflow in low-lying places, causing backflow phenomenon, which not only leads to sewage overflow and environmental pollution, but also may flood the villagers' courtyards or houses, seriously affecting the quality of life. In addition, traditional backflow prevention devices (such as one-way valves, overflow wells, etc.) are often difficult to install or maintain in complex pipeline environments, and the cost is relatively high. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a rain and sewage shunt pipe's anti -backing up structure that avoids sewage overflow.

[0005] The technical scheme of the utility model is: a rain and sewage shunt pipe's anti -backing up structure, including pipeline, the inner wall of the pipeline is fixedly connected with inner tube, the inner wall of the pipeline is fixedly connected with two symmetrical support frames, the two support frames are provided with a rotating shaft, the surface of the rotating shaft is fixedly sleeved with spiral blade, the inner wall of the inner tube is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a circular ring, the inner wall of the circular ring is fixedly connected with a water flow pipe, the surface of the water flow pipe is provided with two water flow openings in communication with the inner wall of the water flow pipe, the inner wall of the water flow pipe is fixedly connected with a floating ball, the pipeline is internally provided with a water blocking mechanism, and the pipeline is internally provided with a trigger mechanism.

[0006] Preferably, the water blocking mechanism includes two symmetrical limiting grooves, the two limiting grooves are arranged in the inner tube, the inner tube is provided with a rotating tube, the surface of the rotating tube is provided with two symmetrical limiting openings, the surface of the rotating tube is fixedly connected with a first cover plate, the two ends of the rotating tube are fixedly connected with straight gears, the inner wall of the rotating tube is rotatably connected with a rotating rod, the two ends of the rotating rod are fixedly connected with spur gears, and the surface of the rotating rod is provided with a second cover plate.

[0007] Preferably, the trigger mechanism includes two symmetrical sliding blocks, the inner wall of the limiting groove is slidably connected with the two sliding blocks, the upper surface of the sliding block is fixedly connected with a first rack, the upper surface of the sliding block is fixedly connected with a second rack, the lower surface of the sliding block is fixedly connected with a push rod, and the lower end of the push rod is fixedly connected with a counterweight round block.

[0008] Preferably, the upper and lower ends of the rotating shaft are rotatably connected with the surfaces of the upper and lower support frames respectively.

[0009] Preferably, the two ends of the rotating pipe penetrate the inner wall of the inner pipe and extend to the interiors of the limiting grooves respectively, and the spur gears are located in the two limiting grooves respectively.

[0010] Preferably, the two ends of the rotating rod extend to the interiors of the limiting grooves from the two ends of the rotating pipe respectively, the spur gears are located in the two limiting grooves respectively, and the connecting surface of the second cover plate is fixedly connected with the surface of the rotating rod through the limiting opening.

[0011] Preferably, the two first racks are meshingly connected with the spur gears respectively, and the two second racks are meshingly connected with the spur gears respectively.

[0012] Preferably, the lower end of the push rod penetrates the inner wall of the limiting groove and extends to the interior of the pipe.

[0013] The utility model discloses an anti-backflow structure of rain and sewage diversion pipe, which has the following improvements and advantages compared with the prior art.

[0014] Firstly, in the anti-backflow structure, the trigger mechanism can respond sensitively to the change of water flow, and when sewage or rainwater appears a backflow trend, the water flow impact force and buoyancy in the pipe can cause the displacement of the counterweight round block and the sliding block, drive the first rack and the second rack to move, and through the meshing transmission between the gears, drive the rotating pipe and the rotating rod to rotate, make the first cover plate and the second cover plate act quickly, block the pipe, and then when the water outlet is blocked by the water pipe, the double-layer effective prevention of sewage and rainwater backflow is realized.

[0015] Secondly, the device realizes the preliminary regulation and control of water flow through the collaborative design of the spiral blade, the water flow pipe and the floating ball, the spiral blade can guide and speed up the water flow in the pipe, prevent local water accumulation and reduce the risk of backflow, and at the same time, the floating ball can adjust the water area of the water flow pipe according to the water level change, realize the fine regulation and control of water flow, and cooperate with the active blocking of the water blocking mechanism, from water flow regulation to reverse blocking, a multi-level anti-backflow system is constructed, compared with a single anti-backflow measure, the reliability of anti-backflow is significantly improved, and the environmental pollution and pipe system damage caused by backflow are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be explained further in combination with the drawings and embodiments:

[0017] Figure 1 is the front view structure schematic diagram of the utility model;

[0018] Figure 2 is a sectional view structure schematic diagram of the utility model;

[0019] Figure 3 is Figure 2 A place in the enlarged structure schematic diagram of the utility model;

[0020] Figure 4 is the display structure schematic diagram of the spiral blade of the utility model;

[0021] Figure 5 is the display structure schematic diagram of the water pipe of the utility model;

[0022] Figure 6 is the display structure schematic diagram of part structure of the utility model;

[0023] Figure 7 is the display structure schematic diagram of the rotating pipe of the utility model;

[0024] Figure 8 is the display structure schematic diagram of the push rod of the utility model.

[0025] Explanation of reference signs:

[0026] 1, pipeline;2, inner tube;3, support frame;4, rotating shaft;5, spiral blade;6, chute;7, circular ring;8, water pipe;9, water outlet;10, floating ball;11, limiting groove;12, rotating pipe;13, limiting port;14, first cover plate;15, straight gear;16, rotating rod;17, spur gear;18, second cover plate;19, sliding block;20, first rack;21, second rack;22, push rod;23, counterweight round block. DETAILED DESCRIPTION

[0027] The utility model will be described in detail below, and the technical scheme in the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] The utility model improves a kind of rain and sewage diversion pipe's anti-backflow structure, and the technical scheme of the utility model is:

[0029] As Figure 1 - Figure 8As shown, a rain and sewage shunt pipe anti-backflow structure, including pipeline 1, the inner wall of pipeline 1 is fixedly connected with inner tube 2, the inner wall of pipeline 1 is fixedly connected with two symmetrical support frames 3, the support frame 3 between the two is provided with rotating shaft 4, the surface of rotating shaft 4 is fixedly provided with spiral blade 5, the inner wall of inner tube 2 is provided with sliding slot 6, the inner wall of sliding slot 6 is slidably connected with circular ring 7, the inner wall of circular ring 7 is fixedly connected with water pipe 8, the surface of water pipe 8 is provided with two water outlets 9 in communication with the inner wall of water pipe 8, the inner wall of water pipe 8 is fixedly connected with float 10, the inner wall of pipeline 1 is provided with water blocking mechanism, the inner wall of pipeline 1 is provided with trigger mechanism.

[0030] Further, the water blocking mechanism includes two symmetrical limiting grooves 11, the two limiting grooves 11 are provided in the inner tube 2, the inner tube 2 is provided with rotating tube 12, the surface of rotating tube 12 is provided with two symmetrical limiting openings 13, the surface of rotating tube 12 is fixedly connected with first cover plate 14, the two ends of rotating tube 12 are fixedly connected with straight gear 15, the inner wall of rotating tube 12 is rotatably connected with rotating rod 16, the two ends of rotating rod 16 are fixedly connected with spur gear 17, the surface of rotating rod 16 is provided with second cover plate 18, the two symmetrical limiting grooves 11 provide stable limiting and guiding effect for the rotation of rotating tube 12, ensure the stability and accuracy of rotating tube 12, the first cover plate 14 on the surface of rotating tube 12 and the second cover plate 18 on the surface of rotating rod 16 cooperate, can realize effective plugging when water blocking is needed, prevent water flow, improve the reliability of water blocking, at the same time, the setting of straight gear 15 and spur gear 17 provides a structural basis for the subsequent linkage with trigger mechanism, which is convenient for realizing automatic water blocking operation.

[0031] Further, the trigger mechanism includes two symmetrical sliding blocks 19, the two sliding blocks 19 are slidably connected with the inner wall of limiting groove 11 respectively, the upper surface of sliding block 19 is fixedly connected with first rack 20, the upper surface of sliding block 19 is fixedly connected with second rack 21, the lower surface of sliding block 19 is fixedly connected with push rod 22, the lower end of push rod 22 is fixedly connected with counterweight round block 23, the two symmetrical sliding blocks 19 can slide stably in limiting groove 11, ensure the stability of trigger mechanism, the first rack 20 and the second rack 21 are engaged with straight gear 15 and spur gear 17 respectively, can convert the linear motion of sliding block 19 into the rotation of rotating tube 12 and rotating rod 16, realize the effective linkage of trigger mechanism and water blocking mechanism, the counterweight round block 23 at the lower end of push rod 22 utilizes gravity, when the water flow appears abnormal situation, can more sensitively drive sliding block 19 to slide, trigger water blocking action in time, improve the response speed of the device.

[0032] Further, the upper and lower ends of the rotating shaft 4 are rotatably connected with the surfaces of the upper and lower support frames 3 respectively, and the rotating connection of the rotating shaft 4 with the upper and lower support frames 3 provides stable support and rotating basis for the rotation of the related components, ensures the smoothness of the rotation of each component during the operation of the whole device, reduces the friction and shaking during the rotation, and improves the service life and operation stability of the device.

[0033] Further, the two ends of the rotating pipe 12 penetrate the inner wall of the inner pipe 2 and extend into the limiting grooves 11 respectively, and the spur gears 15 are located in the two limiting grooves 11 respectively, so that the spur gears 15 can accurately mesh with the first racks 20, ensuring the accuracy and reliability of the transmission between the trigger mechanism and the water blocking mechanism. This structure design enables the action of the trigger mechanism to be accurately transmitted to the rotating pipe 12, thereby realizing the rotation control of the first cover plate 14 and improving the precision of water blocking operation.

[0034] Further, the two ends of the rotating rod 16 extend into the limiting grooves 11 from the two ends of the rotating pipe 12 respectively, the spur gears 17 are located in the two limiting grooves 11 respectively, and the connecting surface of the second cover plate 18 is fixedly connected with the surface of the rotating rod 16 through the limiting opening 13. The accurate meshing of the spur gears 17 with the second racks 21 enables the action of the trigger mechanism to be transmitted to the rotating rod 16, thereby realizing the rotation of the second cover plate 18. The connection of the second cover plate 18 with the rotating rod 16 through the limiting opening 13 not only ensures the stability of the connection, but also enables the second cover plate 18 to accurately act with the rotation of the rotating rod 16, thereby working cooperatively with the first cover plate 14 and enhancing the water blocking effect.

[0035] Further, the two first racks 20 are meshingly connected with the spur gears 15 respectively, and the two second racks 21 are meshingly connected with the spur gears 17 respectively. The meshing connection of the first racks 20 with the spur gears 15 and the second racks 21 with the spur gears 17 can efficiently convert the linear motion of the trigger mechanism into the rotary motion of the water blocking mechanism, thereby realizing the reliable linkage between the trigger mechanism and the water blocking mechanism. This transmission mode has high transmission efficiency and accuracy, and can ensure that the first cover plate 14 and the second cover plate 18 can timely and accurately rotate to the water blocking position when water blocking is needed, thereby improving the water blocking performance of the device.

[0036] Further, the lower end of the push rod 22 penetrates the inner wall of the limiting groove 11 and extends into the pipeline 1, and the lower end of the push rod 22 extends into the pipeline 1. When the water flow in the pipeline 1 is abnormal, the push rod 22 and the sliding block 19 are driven to slide, thereby triggering the action of the water blocking mechanism and realizing the real-time monitoring and timely water blocking of the water flow in the pipeline 1, thereby improving the practicability and safety of the device.

[0037] Working principle: sewage flows into the pipeline 1, the impact force generated acts on the surface of the helical blade 5 of the rotating shaft 4, so that the rotating shaft 4 rotates between the two support frames 3, the helical blade 5 stirs the sewage on one side, so that the components are preliminarily mixed, and on the other side, the sewage is guided to the water flow pipe 8 in the inner pipe 2, when the water flows through the water flow port 9 into the water flow pipe 8, the floating ball 10 is maintained stationary under the double action of its own gravity and the relatively stable water flow state in the water flow pipe 8, the water flow passes through the gap around the floating ball 10, and continuously and stably flows, in the normal drainage stage, the water pressure in the pipeline 1 remains stable, the trigger mechanism is in the initial state, the rotating pipe 12 and the rotating rod 16 are constrained by the limiting groove 11, and the first cover plate 14 and the second cover plate 18 are both in the open state and will not hinder the normal discharge of sewage from the water flow port 9 of the water flow pipe 8, once sewage backflow occurs, the water flow direction in the pipeline 1 reverses, the water pressure increases significantly, when the floating ball 10 rises, the circular ring 7 is driven by the water pipe 8 to slide upward in the chute 6, then the water flow port 9 is blocked by the water pipe 8 when the water flow port 9 moves to the water pipe 8, and then the circular ring 7 drives the counterweight circular block 23 to move upward, drives the push rod 22 to move upward, and the push rod 22 drives the sliding block 19 to slide upward in the limiting groove 11, as the sliding block 19 slides upward, the first rack 20 on the sliding block 19 meshes with the spur gear 15, drives the rotating pipe 12 to rotate, and the first cover plate 14 is gradually closed, at the same time, the second rack 21 meshes with the spur gear 17, drives the rotating rod 16 to rotate, and the second cover plate 18 rotates, further preventing sewage backflow, the two cover plates cooperate to block the water flow port 9 with the water pipe 8, realize double-layer effective blocking of backflow sewage, and prevent backflow to the upstream pipeline.

[0038] The above description enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Accordingly, the present application is not to be limited to these embodiments shown herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A backflow prevention structure of a rain and sewage separation pipe, comprising a pipe (1), characterized in that: The inner wall of the pipeline (1) is fixedly connected with an inner pipe (2), the inner wall of the pipeline (1) is fixedly connected with two symmetrically arranged supporting frames (3), a rotating shaft (4) is arranged between the two supporting frames (3), the surface of the rotating shaft (4) is fixedly sleeved with a spiral blade (5), the inner wall of the inner pipe (2) is provided with a sliding groove (6), the inner wall of the sliding groove (6) is slidably connected with a circular ring (7), the inner wall of the circular ring (7) is fixedly connected with a water flowing pipe (8), the surface of the water flowing pipe (8) is provided with two water flowing openings (9) in communication with the inner wall of the water flowing pipe (8), the inner wall of the water flowing pipe (8) is fixedly connected with a floating ball (10), the pipeline (1) is internally provided with a water blocking mechanism, and the pipeline (1) is internally provided with a triggering mechanism. The water blocking mechanism comprises two symmetrically arranged limiting grooves (11), the two limiting grooves (11) are arranged in the inner pipe (2), the inner pipe (2) is provided with a rotating pipe (12), the surface of the rotating pipe (12) is provided with two symmetrically arranged limiting openings (13), the surface of the rotating pipe (12) is fixedly connected with a first cover plate (14), both ends of the rotating pipe (12) are fixedly connected with a straight gear (15), the inner wall of the rotating pipe (12) is rotatably connected with a rotating rod (16), both ends of the rotating rod (16) are fixedly connected with a spur gear (17), and the surface of the rotating rod (16) is provided with a second cover plate (18). The triggering mechanism comprises two symmetrically arranged sliding blocks (19), the inner wall of each limiting groove (11) is slidably connected with the two sliding blocks (19), the upper surface of each sliding block (19) is fixedly connected with a first rack (20), the upper surface of each sliding block (19) is fixedly connected with a second rack (21), the lower surface of each sliding block (19) is fixedly connected with a push rod (22), and the lower end of each push rod (22) is fixedly connected with a counterweight circular block (23).

2. The backflow prevention structure of a rain and sewage diversion pipe according to claim 1, characterized in that: The upper and lower ends of the rotating shaft (4) are rotatably connected with the surfaces of the upper and lower supporting frames (3) respectively.

3. The backflow prevention structure of a rain and sewage diversion pipe according to claim 1, characterized in that: Both ends of the rotating pipe (12) penetrate through the inner wall of the inner pipe (2) and extend into the limiting grooves (11) respectively, and the straight gears (15) are located in the two limiting grooves (11) respectively.

4. The backflow prevention structure of a rain and sewage diversion pipe according to claim 1, characterized in that: Both ends of the rotating rod (16) extend into the limiting grooves (11) from both ends of the rotating pipe (12) respectively, the spur gears (17) are located in the two limiting grooves (11) respectively, and the connecting surface of the second cover plate (18) is fixedly connected with the surface of the rotating rod (16) through the limiting opening (13).

5. The backflow prevention structure of a rain and sewage diversion pipe according to claim 1, characterized in that: The two first racks (20) are meshingly connected with the straight gears (15) respectively, and the two second racks (21) are meshingly connected with the spur gears (17) respectively.

6. The backflow prevention structure of a rain and sewage diversion pipe according to claim 1, characterized in that: The lower end of the push rod (22) penetrates through the inner wall of the limiting groove (11) and extends into the pipeline (1).

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