Automatic flushing device for drainage pipe

Abstract

The present invention provides an automatic flushing device for drainage pipes, and relates to the technical field of drainage pipe flushing equipment. The automatic flushing device based on drainage pipes includes a frame and a hinge, wherein a plurality of hinges are fixedly connected to the upper part of the interior of the frame, a water retaining plate is rotatably connected to the interior of the frame through a plurality of hinges, a buoyancy box is fixedly connected to the lower part of one side of the water retaining plate, a float linkage mechanism is arranged at both ends of the upper part of the frame, a bottom cavity is opened at the lower part of the interior of both sides of the frame, and a bottom limiting mechanism is arranged inside the two bottom cavities. The hinge of the water retaining plate of the present invention is arranged above the frame, and the water retaining plate is provided with a buoyancy box, and the water retaining plate can be stably rotated upward by utilizing the impact force and buoyancy of the water flow, and the top limiting mechanism can be used to ensure that the water retaining plate is stable in the upper position, and greater potential energy can be accumulated without hindering the water flow, thereby increasing the impact force when closing the door, ensuring the stability of closing the door, and improving the practicality of the present invention.

Description

Technical Field

[0001] The invention relates to the technical field of drainage pipe flushing equipment, in particular to an automatic drainage pipe flushing device. Background Art

[0002] In the past, when designing and constructing urban underground drainage pipes, in order to prevent sewage overflow and flooding in urban areas due to insufficient pipe capacity, the diameter of the pipe was selected and determined based on the instantaneous maximum value of the drainage volume that the pipe needed to collect. In this way, when the designed instantaneous maximum value of the flow rate does not appear, the amount of water inside the pipe will be relatively small, which will cause the water flow velocity in the pipe to fail to reach the designed value, and the silt and pollutants in the sewage will settle in the pipe, causing siltation. Especially in the combined drainage pipes where rainwater and sewage are discharged together, since the amount of water is very small on sunny days, it is easy to cause pollutants to accumulate inside the pipe, forming blockage inside the pipe, and causing the sewage inside the pipe to ferment and emit odor. At the same time, the pollutants accumulated in the combined drainage pipes on sunny days will be directly discharged from the rainwater discharge port into public waters such as rivers and lakes on rainy days, polluting rivers and affecting the sanitation of public waters.

[0003] The automatic sediment removal technology of urban drainage systems can better solve the above problems. The main control components of the automatic flushing device based on hinge control are located below the liquid level of the drainage pipe. Due to the large amount of entangled garbage in the sewage of my country's urban drainage system, the device components are corroded by sewage and entangled by garbage under long-term operation, and the operation reliability is greatly reduced. In the prior art, an automatic flushing device for drainage pipes is disclosed in application number CN202010747889.5, wherein the door body is configured to be able to rotate back and forth between a position of closing the pipe to intercept drainage and a position of opening the pipe to discharge flow for flushing; the door frame is used to install a fixing device assembly, and the door frame and the door body are hinged by a door shaft assembly; the door body closing control assembly is used to keep the door body in a closed state when water flow is accumulated; the door body opening control assembly is used to keep the door body in an open state when flood discharge is flushing; a sealing strip is arranged at the upstream edge of the door frame to block the gap between the door body and the door frame when the door body is closed. The door body of the present invention is limited by the door body opening control component to be kept in a fully open state during the flushing process. When the water level drops to a certain height, the door body closing control component releases the door body to complete an automatic pipeline flushing cycle. This device does not require external power and is used to prevent and automatically clean sediments in drainage pipes. Although it solves the above-mentioned problems, the use of the circumferential inclined surface of the door shaft assembly to store energy for the door body places very high requirements on the strength and lubrication of the circumferential inclined surface. The impact force at the end of the closing stroke is small. After the sealing edge is installed, it is difficult to close. In addition, due to excessive impurities in the sewage, it is easy to block the door shaft assembly, resulting in a situation where closing is blocked, affecting the use of the device. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic flushing device for a drainage pipe, which solves the problems described in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic flushing device for drainage pipes, comprising a frame and a hinge, wherein a plurality of hinges are fixedly connected to the upper part of the interior of the frame, a water retaining plate is rotatably connected to the interior of the frame through a plurality of hinges, a buoyancy box is fixedly connected to the lower part of one side of the water retaining plate, a float linkage mechanism is arranged at both ends of the upper part of the frame, a bottom cavity is opened at the lower part of both sides of the interior of the frame, and a bottom limiting mechanism is arranged inside the two bottom cavities;

[0008] The upper two ends of the frame are fixedly connected to the side away from the buoyancy box, and the two limit seats are provided with top limit mechanisms inside. The lower two ends of the frame are provided with buoyancy grooves on the side away from the bottom cavity. The lower part of the buoyancy groove is slidably connected with a linkage weight, and the top of the linkage weight is fixedly connected with a buoyancy block. Isolation net covers are fixedly connected at positions above both sides of the frame corresponding to the float linkage mechanism, and isolation filters are fixedly connected to the outer sides of the two buoyancy grooves.

[0009] Preferably, the top limiting mechanism includes a supporting slide column, a limiting sleeve, a compression spring, a connecting plate and a transmission pulley, the inner end of the limiting seat away from the water retaining plate is fixedly connected to the supporting slide column, the outer side of the supporting slide column is slidably connected to the limiting sleeve, a compression spring is provided at the upper end of the limiting sleeve away from the water retaining plate, the lower end of the limiting sleeve is fixedly connected to the connecting plate, and the lower end of the limiting seat away from the water retaining plate is fixedly connected to the transmission pulley.

[0010] Preferably, the float linkage mechanism includes a support column, a sliding seat, a connecting rod, a float body and a roller, the two ends of the support column are fixedly connected to the frame, the outer side of the support column is slidably connected to the sliding seat through four symmetrical rollers, the end of the sliding seat away from the limit seat is fixedly connected to the connecting rod, and the float body is fixedly connected below the end of the connecting rod away from the sliding seat.

[0011] Preferably, the bottom limiting mechanism includes a limiting plate, a return spring, a linkage pulley and a linkage rope. The end of the limiting plate away from the buoyancy tank is rotatably connected to the bottom cavity. The inner side of the end of the limiting plate close to the buoyancy tank is fixedly connected with a return spring. The upper inner side of the bottom cavity is fixedly connected with a linkage pulley, and the inner middle part of the limiting plate is fixedly connected with a linkage rope.

[0012] Preferably, a transmission rope is fixedly connected to the upper middle portion of the buoyancy block, and one end of the transmission rope away from the buoyancy block is transmission-connected to the connecting plate via a transmission pulley.

[0013] Preferably, limiting flanges are provided on the outer sides of the two limiting plates at positions corresponding to the water retaining plates.

[0014] Preferably, one end of the two limiting sliding sleeves close to the water retaining plate is fixedly connected to the limiting protrusion.

[0015] Preferably, one end of the linkage rope away from the limiting plate is transmission-connected to the sliding seat via a linkage pulley.

[0016] Working principle: The float linkage mechanism provided in the present invention cooperates with the bottom limiting mechanism, and can use the buoyancy of the float body to control the sewage capacity accumulated in the drainage pipe. When the water level reaches the corresponding liquid level, the float body can drive the bottom limiting mechanism to release the limit, open the water retaining plate to release water, and the buoyancy box provided on the water retaining plate can use the impact force and buoyancy of the water flow to make the water retaining plate rotate upward stably when releasing water. When it reaches the position of the top limiting mechanism, it is stuck by the limiting protrusion, which can ensure that the water retaining plate is stable in the upper position. Without hindering the water flow, greater potential energy can be accumulated. After the water level drops to the bottom, the linkage pressure drop drives the top limiting mechanism to release the limit on the water retaining plate, so that the water retaining plate uses its own gravity and the buoyancy of the buoyancy box to directly fall down, jam the limiting plate, and close the drainage pipe. This device can automatically operate by the buoyancy of the water body only by using the water level difference.

[0017] (III) Beneficial effects

[0018] The present invention provides an automatic flushing device for a drainage pipe, which has the following beneficial effects:

[0019] 1. The hinge of the water retaining plate of the present invention is arranged above the frame, and the water retaining plate is provided with a buoyancy box. When the water is released, the impact force and buoyancy of the water flow can be used to make the water retaining plate rotate upward stably. In conjunction with the top limiting mechanism, the water retaining plate can be ensured to be stable in the upper position. Without hindering the water flow, greater potential energy can be accumulated, the impact force when closing the door is increased, the stability of closing the door is ensured, and the practicality of the present invention is improved.

[0020] 2. The present invention is provided with a float linkage mechanism, which cooperates with the bottom limit mechanism. The buoyancy of the float body can be used to control the sewage capacity accumulated in the drainage pipe. When the corresponding liquid level is reached, the float body can drive the bottom limit mechanism to release the limit, open the water retaining plate to release the sewage accumulated in the drainage pipe for flushing, and use the buoyancy of the water body to operate automatically, thereby improving the practicality of the device.

[0021] 3. The present invention is provided with a linkage weight sinker, which cooperates with the buoyancy block. The top limit mechanism can be controlled by the buoyancy balance of the water body through a transmission rope. After the water level drops to the bottom, the linkage weight sinker drives the top limit mechanism to release the limit on the water retaining plate, so that the water retaining plate can fall directly by utilizing its own gravity and the buoyancy box, jamming the limit plate and closing the drainage pipe, thereby improving the practicability of the device.

[0022] 4. The present invention is provided with an isolation mesh cover and an isolation filter, which can effectively prevent the impurities in the sewage from affecting the device and enhance the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention;

[0025] Figure 3 It is a front structural schematic diagram of the present invention;

[0026] Figure 4 It is a cross-sectional view of the side bottom cavity of the present invention;

[0027] Figure 5 For the present invention Figure 4 A magnified image of point A;

[0028] Figure 6 For the present invention Figure 4 Enlarged view of point B.

[0029] Among them, 1. frame; 2. hinge; 3. water retaining plate; 4. buoyancy box; 5. limit seat; 6. isolation net cover; 7. top limit mechanism; 701. support slide column; 702. limit sliding sleeve; 703. compression spring; 704. connecting plate; 705. transmission pulley; 8. float linkage mechanism; 801. support column; 802. sliding seat; 803. connecting rod; 804. float body; 805. roller; 9. bottom limit mechanism; 901. limit plate; 902. return spring; 903. linkage pulley; 904. linkage rope; 10. isolation filter; 11. buoyancy trough; 12. linkage weight drop; 13. buoyancy block; 14. bottom cavity. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1:

[0032] like Figure 1-6 As shown, an embodiment of the present invention provides an automatic flushing device for a drainage pipe, including a frame 1 and a hinge 2. A plurality of hinges 2 are fixedly connected to the upper part of the interior of the frame 1. A water retaining plate 3 is rotatably connected to the interior of the frame 1 through the plurality of hinges 2. A buoyancy box 4 is fixedly connected to the lower part of one side of the water retaining plate 3. The hinge 2 of the water retaining plate 3 of the present invention is arranged above the frame 1 to effectively avoid clogging by impurities in the water body. The buoyancy box 4 arranged on the water retaining plate 3 can utilize the impact force and buoyancy of the water flow to make the water retaining plate 3 rotate upward stably when releasing water. In conjunction with the top limiting mechanism 7, the water retaining plate 3 can be ensured to be stable in the upper position without hindering the water flow. Under such circumstances, greater potential energy can be accumulated, the impact force when closing the door can be increased, the stability of closing the door can be ensured, and the practicality of the present invention can be improved. Both ends of the upper part of the frame 1 are provided with a floating ball linkage mechanism 8, and the floating ball linkage mechanism 8 includes a support column 801, a sliding seat 802, a connecting rod 803, a floating ball body 804 and a roller 805. Both ends of the support column 801 are fixedly connected to the frame 1, and the outer side of the support column 801 is slidably connected to the sliding seat 802 through four symmetrical rollers 805. The end of the sliding seat 802 away from the limiting seat 5 is fixedly connected with the connecting rod 803, and the end of the connecting rod 803 away from the sliding seat 802 A float body 804 is fixedly connected at the bottom, and bottom cavities 14 are opened at the bottom of both sides of the frame 1. Bottom limiting mechanisms 9 are arranged inside the two bottom cavities 14. The bottom limiting mechanisms 9 include a limiting plate 901, a return spring 902, a linkage pulley 903 and a linkage rope 904. The end of the limiting plate 901 away from the buoyancy tank 11 is rotatably connected to the bottom cavity 14, and the inner side of the end of the limiting plate 901 close to the buoyancy tank 11 is fixedly connected with a return spring 902, and the upper part of the bottom cavity 14 is fixedly connected with a linkage pulley 903, and the inner middle part of the limiting plate 901 is fixedly connected with a linkage rope 9 04, the outer sides of the two limit plates 901 are provided with limit flanges at positions corresponding to the water retaining plate 3, and the end of the linkage rope 904 away from the limit plate 901 is connected to the sliding seat 802 through the linkage pulley 903. The float linkage mechanism 8 provided in the present invention cooperates with the bottom limit mechanism 9, and the buoyancy of the float body 804 can be used to control the sewage capacity accumulated in the drainage pipe. When the corresponding liquid level is reached, the float body can drive the bottom limit mechanism 9 to release the limit, open the water retaining plate 3 to release the sewage accumulated in the drainage pipe for flushing, and use the buoyancy of the water body to operate automatically, thereby improving the practicality of the device;

[0033] The upper ends of the frame 1 are fixedly connected to the side away from the buoyancy box 4. The two limit seats 5 are internally provided with top limit mechanisms 7. The top limit mechanisms 7 include a supporting slide column 701, a limiting sleeve 702, a compression spring 703, a connecting plate 704 and a transmission pulley 705. The inner end of the limit seat 5 away from the water retaining plate 3 is fixedly connected to the supporting slide column 701. The outer side of the supporting slide column 701 is slidably connected to the limiting sleeve 702. The ends of the two limiting sleeves 702 close to the water retaining plate 3 are fixedly connected to the limiting protrusions. The upper end of the limiting sleeve 702 away from the water retaining plate 3 is provided with a compression spring 703. The lower end of the limiting sleeve 702 is fixedly connected to the connecting plate 704. The lower end of the inner end of the limit seat 5 away from the water retaining plate 3 is fixedly connected to the transmission pulley 7 05. Buoyancy grooves 11 are provided at both ends of the lower part of the frame 1 on one side away from the bottom cavity 14. A linkage weight 12 is slidably connected to the lower part of the buoyancy groove 11. A buoyancy block 13 is fixedly connected to the upper part of the linkage weight 12. A transmission rope is fixedly connected to the upper middle part of the buoyancy block 13. The end of the transmission rope away from the buoyancy block 13 is transmission-connected to the connecting plate 704 through a transmission pulley 705. The linkage weight 12 provided in the present invention cooperates with the buoyancy block 13 and can control the top limiting mechanism 7 through the transmission rope by utilizing the buoyancy balance of the water body. After the water level drops to the bottom, the linkage weight 12 drives the top limiting mechanism 7 to release the limitation on the water retaining plate 3, so that the water retaining plate 3 directly falls down by utilizing the gravity of itself and the buoyancy box 4, and the limiting plate 901 is stuck, and the drainage pipe is closed, thereby improving the practicability of the device.

[0034] Isolation net covers 6 are fixedly connected at positions corresponding to the float linkage mechanism 8 on both sides of the frame 1, and isolation filter screens 10 are fixedly connected to the outer sides of the two buoyancy tanks 11, which can filter sewage and effectively prevent impurities in the sewage from affecting the device, thereby enhancing the practicability of the device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic flushing device for a drainage pipe, comprising a frame (1) and a hinge (2), characterized in that: A plurality of hinges (2) are fixedly connected to the upper part of the interior of the frame (1); a water retaining plate (3) is rotatably connected to the interior of the frame (1) via the plurality of hinges (2); a buoyancy box (4) is fixedly connected to the lower part of one side of the water retaining plate (3); a floating ball linkage mechanism (8) is provided at both ends of the upper part of the frame (1); a bottom cavity (14) is provided at the lower part of both sides of the interior of the frame (1); and a bottom limiting mechanism (9) is provided inside the two bottom cavities (14); The upper ends of the frame (1) are fixedly connected to a limiting seat (5) on one side away from the buoyancy box (4), and the two limiting seats (5) are provided with a top limiting mechanism (7) inside. The lower ends of the frame (1) are provided with a buoyancy groove (11) on one side away from the bottom cavity (14), and the lower part of the buoyancy groove (11) is slidably connected to a linkage weight (12), and the upper part of the linkage weight (12) is fixedly connected to a buoyancy block (13). The upper parts of both sides of the frame (1) are fixedly connected to isolation net covers (6) at positions corresponding to the float linkage mechanism (8), and the outer sides of the two buoyancy grooves (11) are fixedly connected to isolation filters (10); The float linkage mechanism (8) comprises a support column (801), a sliding seat (802), a connecting rod (803), a float body (804) and a roller (805); both ends of the support column (801) are fixedly connected to the frame (1); the outer side of the support column (801) is slidably connected to the sliding seat (802) via four symmetrical rollers (805); one end of the sliding seat (802) away from the limiting seat (5) is fixedly connected to the connecting rod (803); and the lower part of the end of the connecting rod (803) away from the sliding seat (802) is fixedly connected to the float body (804); The bottom limiting mechanism (9) comprises a limiting plate (901), a return spring (902), a linkage pulley (903) and a linkage rope (904); the end of the limiting plate (901) away from the buoyancy tank (11) is rotatably connected to the bottom cavity (14); the inner side of the end of the limiting plate (901) close to the buoyancy tank (11) is fixedly connected with the return spring (902); the upper part of the bottom cavity (14) is fixedly connected with the linkage pulley (903); and the middle part of the inner side of the limiting plate (901) is fixedly connected with the linkage rope (904).

2. The automatic flushing device for drainage pipes according to claim 1, characterized in that: The top limiting mechanism (7) comprises a supporting sliding column (701), a limiting sliding sleeve (702), a compression spring (703), a connecting plate (704) and a transmission pulley (705); the end of the interior of the limiting seat (5) away from the water retaining plate (3) is fixedly connected to the supporting sliding column (701); the outer side of the supporting sliding column (701) is slidably connected to the limiting sliding sleeve (702); the upper end of the limiting sliding sleeve (702) away from the water retaining plate (3) is provided with a compression spring (703); the lower end of the limiting sliding sleeve (702) is fixedly connected to the connecting plate (704); and the lower end of the interior of the limiting seat (5) away from the water retaining plate (3) is fixedly connected to the transmission pulley (705).

3. The automatic flushing device for drainage pipes according to claim 2, characterized in that: A transmission rope is fixedly connected to the upper middle portion of the buoyancy block (13), and one end of the transmission rope away from the buoyancy block (13) is transmission-connected to the connecting plate (704) via a transmission pulley (705).

4. The automatic flushing device for drainage pipes according to claim 1, characterized in that: Limiting flanges are provided on the outer sides of the two limiting plates (901) at positions corresponding to the water retaining plates (3).

5. The automatic flushing device for drainage pipes according to claim 2, characterized in that: One end of the two limiting sliding sleeves (702) close to the water retaining plate (3) is fixedly connected to a limiting protrusion.

6. The automatic flushing device for drainage pipes according to claim 1, characterized in that: One end of the linkage rope (904) away from the limiting plate (901) is transmission-connected to the sliding seat (802) via a linkage pulley (903).

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