A pipe flushing device

Abstract

The application relates to a pipeline flushing device which comprises a support, a gate door plate and a lock door assembly, a through hole is formed in the support; the gate door plate is connected to one side of the support; the linkage assembly comprises a floating piece group which is slidingly arranged on the side of the support away from the gate door plate; the lock door assembly comprises a gate cable, one end of the gate cable is connected to the floating piece group, and the other end of the gate cable is connected to the gate door plate, the lock door assembly is configured to lock the gate door plate on the support when the gate door plate closes the through hole; the floating piece group is configured to move upwards relative to the support under the action of the buoyancy of water, drive the gate door plate to open the through hole through the gate cable, move downwards relative to the support under the action of the water level drop in the inspection well and the gravity of the floating piece group, and drive the gate door plate to rotate relative to the support through the gate cable so as to close the through hole. The pipeline flushing device provided by the application reduces the possibility that the sediments in the branch pipe adhere to the inner wall of the pipeline.

Description

Technical Field

[0001] This application relates to the field of pipeline cleaning technology, and more specifically, to a pipeline flushing device. Background Technology

[0002] Drainage pipes are an essential part of urban infrastructure. Over time, sediment accumulates in the pipes, including pipe fragments introduced by pipe damage, soil, and gravel. The sediment also comes from particulate matter in domestic sewage, which contains a large amount of fat, protein, carbonates, and other substances.

[0003] In this technology, water flows into a manhole, and the water in the manhole converges into the main pipe through a branch pipe, and is then transported to a sewage treatment plant for treatment. Because the inner diameter of the branch pipe is smaller than that of the main pipe, pollutants are more likely to accumulate in the branch pipe than in the main pipe. After entering the drainage pipe, these deposits tend to settle at the bottom of the pipe under poor hydraulic conditions. Through consolidation, these deposits form a hard-to-clean, compacted sediment layer, severely impacting urban drainage. Summary of the Invention

[0004] The purpose of this application is to provide a pipe flushing device to solve the problem of sediment adhering to the inner wall of the pipe during drainage when the water conditions in the inspection well are insufficient.

[0005] This application provides a pipe flushing device, comprising:

[0006] A support frame is installed inside the inspection well, and the support frame has a through hole for connecting the branch pipe.

[0007] A gate panel, which is connected to one side of the bracket;

[0008] The linkage component includes a floating component group, which is slidably disposed on the side of the bracket away from the gate panel;

[0009] A locking assembly, comprising a gate cable, one end of which is connected to the floating component assembly, and the other end of which passes through the bracket and is connected to the gate panel;

[0010] The floating component assembly is configured to move upward relative to the support under the buoyancy of the water in the inspection well, and drive the gate plate to rotate relative to the support via the gate cable to open the through hole; under the action of the water level dropping in the inspection well and its own gravity, it moves downward relative to the support, and drives the gate plate to rotate relative to the support via the gate cable to close the through hole.

[0011] In one possible implementation, the linkage assembly further includes a connecting rod, a first sliding rail, and a second sliding rail, wherein the first sliding rail and the second sliding rail are disposed on the bracket and are respectively located on both sides of the through hole;

[0012] The floating component assembly includes a first floating component slidably disposed on a first sliding rail and a second floating component slidably disposed on a second sliding rail. The first floating component and the second floating component are connected by the connecting rod, and the gate cable is connected to the connecting rod.

[0013] In one possible implementation, it also includes:

[0014] A connecting component is mounted on the bracket and connected to the first floating member. The connecting component is used to connect to the second floating member after the gate plate opens the through hole, so as to fix the second floating member.

[0015] In one possible implementation, the connection component includes:

[0016] A connecting piece is rotatably connected to the bracket, and a connecting part is provided on the second floating member;

[0017] A positioning cable, one end of which is connected to the connector, and the other end of which is connected to the first floating member;

[0018] When the floating component group moves upward relative to the bracket to the first preset position, the connector engages with the connecting part, and the positioning cable loosens;

[0019] The first floating member is configured to, when moving downward relative to the bracket to a second preset position, tighten the positioning cable and drive the connector to rotate relative to the bracket through the positioning cable, so that the connector is disengaged from the connecting part;

[0020] The second floating member is configured to move downward to the second preset position under the weight of the second floating member when the connector disengages from the connecting part.

[0021] In one possible implementation, the connecting assembly further includes a reset member, one end of which is connected to the connecting member, and the other end of which is connected to the bracket;

[0022] The reset member is configured to extend and drive the connector to rotate relative to the bracket toward the positioning cable when the connector disengages from the connecting portion.

[0023] In one possible implementation, the connecting assembly further includes a first pulley rotatably mounted on the bracket, and the positioning cable is wound around the first pulley.

[0024] In one possible implementation, the locking assembly further includes a second pulley disposed on top of the bracket, and the gate cable is wound around the second pulley.

[0025] In one possible implementation, the door locking assembly further includes: an unlocking lock and a trigger, wherein two parallel sliding seats are fixedly connected to the bracket, and the two ends of the trigger are respectively slidably disposed in the corresponding sliding seats;

[0026] The trigger is configured to move upward relative to the sliding seat under the action of the connecting rod and contact the gate unlocking lock so that the gate unlocking lock unlocks the gate panel;

[0027] The gate opening lock is configured to connect with the bracket when the gate plate closes the through hole, so as to lock the gate plate onto the bracket.

[0028] In one possible implementation, a baffle is fixedly connected to the side of the trigger member facing away from the bracket. When the connecting rod moves upward relative to the bracket, it abuts against the baffle and pushes the trigger member upward so that the trigger member contacts the gate unlocking lock.

[0029] In one possible implementation, the gate release lock is a spring-loaded push-button lock.

[0030] In summary, the pipeline flushing device provided in this application, by setting up a floating component assembly, can move vertically within a manhole. When the water level in the manhole is low, the floating component assembly, under its own weight, moves downward within the manhole, pulling the gate cable. The end of the gate cable away from the floating component assembly pulls the gate plate, causing the gate plate to rotate relative to the support, thereby closing the through hole and preventing water from flowing out of the manhole into the branch pipe. As the water flow in the manhole increases, the floating component assembly, under the buoyancy of the water flow, gradually moves upward within the manhole. At this time, the gate cable loosens, and the gate plate rotates relative to the support, thereby opening the through hole. A large amount of water rushes into the branch pipe instantly. The impact force of the water flow is large, flushing the sediment in the branch pipe into the main pipe, thus reducing the possibility of sediment adhering to the inner wall of the branch pipe. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0032] Figure 1 This is a schematic diagram of the pipe flushing device according to an embodiment of this application;

[0033] Figure 2 This is a structural schematic diagram of the pipe flushing device according to another embodiment of this application;

[0034] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle;

[0035] Figure 4 This is a diagram showing the usage status of the pipeline flushing device according to an embodiment of this application;

[0036] Figure 5 This is a state diagram of the pipeline flushing device in the closed phase according to an embodiment of this application;

[0037] Figure 6 This is a state diagram of the water storage stage of the pipeline flushing device according to an embodiment of this application;

[0038] Figure 7 This is a state diagram of the pipeline flushing device in the start-up flushing stage according to an embodiment of this application;

[0039] Figure 8 This is a state diagram of the pipeline flushing device in the embodiment of this application maintaining the flushing stage.

[0040] Explanation of reference numerals in the attached figures:

[0041] 100: Bracket; 110: Through hole; 120: Perforation;

[0042] 200: Linkage component; 210: First floating component; 220: Second floating component; 230: Linkage rod; 240: First sliding rail; 250: Second sliding rail;

[0043] 300: Locking assembly; 310: Gate cable; 320: Second pulley; 330: Gate unlocking lock; 340: Trigger; 350: Sliding seat; 360: Baffle;

[0044] 400: Connecting component; 410: Connector; 420: Connecting part; 430: Positioning cable; 440: Reset component; 450: First pulley;

[0045] 500: Gate panel;

[0046] 10: Sewage outlet of the community; 20: Confluence node; 30: Branch pipe in normal operation; 40: Branch pipe with poor hydraulic conditions; 50: Main pipe; 60: Sewage receiving area; 70: Inspection well.

[0047] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0048] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0049] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0050] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0051] Inspection well 70 is used to collect sewage. Water flows into inspection well 70 and then flows through branch pipes into main pipe 50, which then transports it to the sewage treatment plant for treatment. Because the inner diameter of the branch pipe is small, when the water flow is weak, sediment in the water flow easily adheres to the inner wall of the branch pipe. Under the action of consolidation, the sediment forms a hard-to-clean, compacted sediment layer, thus affecting the city's drainage.

[0052] Based on this, this application provides a pipe flushing device. By setting a floating component group, the floating component group can move vertically within the inspection well 70. When the water level in the inspection well 70 is low, the floating component group is subjected to its own gravity. When it moves down within the inspection well 70, it pulls the gate cable 310. The end of the gate cable 310 away from the floating component group pulls the gate plate 500, causing the gate plate 500 to rotate relative to the support 100, thereby closing the through hole 110. This prevents the water in the inspection well 70 from flowing out through the through hole 110 into the branch pipe. As the water flow in the inspection well 70 increases, the floating component is subjected to the buoyancy of the water flow and gradually moves upward in the inspection well 70. At this time, the gate cable 310 loosens, and the gate plate 500 rotates relative to the support 100, thereby opening the through hole 110. A large amount of water rushes into the branch pipe instantly. The impact force of the water flow is large, which washes the sediment in the branch pipe into the main pipe 50, thereby reducing the possibility of the sediment in the branch pipe adhering to the inner wall of the branch pipe.

[0053] like Figure 1-8 As shown, this application provides a pipeline flushing device, including: a bracket 100, a gate plate 500, a linkage assembly 200, and a locking assembly 300.

[0054] The bracket 100 is installed inside the inspection well 70, and the bracket 100 has a through hole 110 for connecting the branch pipe.

[0055] Gate panel 500 is connected to one side of bracket 100.

[0056] The linkage component 200 includes a floating component group, which is slidably disposed on the side of the bracket 100 away from the gate plate 500.

[0057] The locking assembly 300 includes a gate cable 310, one end of which is connected to a floating component assembly, and the other end of which passes through a bracket 100 and is connected to a gate panel 500.

[0058] The floating assembly is configured to move upward relative to the support 100 under the buoyancy of the water in the inspection well 70, and drive the gate plate 500 to rotate relative to the support 100 via the gate cable 310 to open the through hole 110; under the drop of the water level in the inspection well 70 and its own gravity, it moves downward relative to the support 100, and drive the gate plate 500 to rotate in the opposite direction relative to the support 100 via the gate cable 310 to close the through hole 110.

[0059] In this embodiment, the gate plate 500 is located on one side of the branch pipe and is rotatably connected to the bracket 100. The gate plate 500 can be rotatably connected to the bracket 100 through a pin and a hinge, so that the gate plate 500 can close or open the through hole 110, thereby realizing the isolation and connection between the branch pipe and the inspection well 70.

[0060] Reference Figure 1 and Figure 2 The bracket 100 has a through hole 120 for the gate cable 310 to pass through. The through hole 120 is located above the through hole 110. The floating component assembly is located in the inspection well 70. The gate plate 500 is located in the branch pipe. The through hole 110 facilitates the connection of the gate cable 310 to the gate plate 500 and the floating component assembly respectively.

[0061] Reference Figure 5 and Figure 7 The floating assembly can move vertically within the inspection well 70. When the water level in the inspection well 70 is low, the floating assembly, under its own weight, moves downward within the inspection well 70, pulling the gate cable 310. The end of the gate cable 310 away from the floating assembly pulls the gate plate 500, causing the gate plate 500 to rotate relative to the support 100, thereby closing the through hole 110 and preventing water from flowing out of the inspection well 70 into the branch pipe. As the water flow in the inspection well 70 increases, the floating assembly, under the buoyancy of the water flow, gradually moves upward within the inspection well 70 (e.g., ...). Figure 2 (in the +Y direction) At this time, the gate cable 310 is relaxed, and the gate plate 500 rotates relative to the support 100, thereby opening the through hole 110. A large amount of water flows into the branch pipe instantly. The impact force of the water flow is large, which washes the sediment in the branch pipe into the main pipe 50 connected to the branch pipe, thereby reducing the possibility of the sediment in the branch pipe adhering to the inner wall of the branch pipe.

[0062] Reference Figure 6 When the water level in the inspection well 70 is low, the water flow is intercepted in the inspection well 70 for water storage until the floating component moves up to open the through hole 110. Only then can the accumulated water flow flow into the branch pipe through the through hole 110. Because there is a lot of water after water storage, the flow rate of the water entering the branch pipe is faster, making it less likely for sediment to solidify in the branch pipe and reducing the possibility of the branch pipe being blocked.

[0063] It should be noted that, Figure 4 This is a diagram showing the usage status of the pipe flushing device according to an embodiment of this application. Figure 4As can be seen, during use, the branch pipes connected to the main pipe 50 are divided into normal operating branch pipes 30 and branch pipes with poor hydraulic conditions. The connection point between the normal operating branch pipes 30, the branch pipes with poor hydraulic conditions and the main pipe 50 is the intersection node 20. The normal operating branch pipes 30 and the branch pipes with poor hydraulic conditions are distributed in the sewage receiving area 60. The normal operating branch pipes 30 and the branch pipes with poor hydraulic conditions have inspection wells 70 equipped with pipe flushing devices. In the above embodiment, the pipe flushing devices are distributed in the inspection wells 70 downstream of the community sewage outlet 10 and upstream of the branch pipes with poor hydraulic conditions, forming a distributed pipe flushing system from the community sewage outlet 10 to the sewage main pipe 50. Effective sediment flushing and transportation are formed in the multiple sewage receiving areas 60 where the main pipe 50 receives sewage. The sediment is gradually transported to the main pipe 50 and enters the sewage treatment plant with the water flow. This can reduce the sludge removal frequency of the poor branch pipes, reduce sediment settling, slow down sediment layer caking, and help increase the influent concentration of the sewage treatment plant.

[0064] In the pipe flushing device of this application embodiment, the linkage component 200 further includes a connecting rod 230, a first sliding rail 240, and a second sliding rail 250. The first sliding rail 240 and the second sliding rail 250 are disposed on the bracket 100 and are respectively located on both sides of the through hole 110.

[0065] The floating component assembly includes a first floating component 210 slidably disposed on a first sliding rail 240 and a second floating component 220 slidably disposed on a second sliding rail 250. The first floating component 210 and the second floating component 220 are connected by a connecting rod 230, and the gate cable 310 is connected to the connecting rod 230.

[0066] Reference Figure 2 In this embodiment, the first sliding track 240 and the second sliding track 250 are arranged parallel to each other on both sides of the through hole 110. Sliding members (not shown in the figure) are slidably arranged on both the first sliding track 240 and the second sliding track 250. The first floating member 210 and the second floating member 220 are connected to the corresponding sliding members. The volume of the first floating member 210 and the second floating member 220 is larger than the volume of the sliding member, thereby enhancing the contact surface between the first floating member 210 and the second floating member 220 and the water, thereby improving the buoyancy of the first floating member 210 and the second floating member 220.

[0067] One end of the connecting rod 230 is hinged to the first floating member 210, and the other end is hinged to the second floating member 220. The connecting rod 230 can be a telescopic rod. The connecting rod 230 can move together with the first floating member 210 and the second floating member 220, thereby tightening or loosening the gate cable 310.

[0068] For example, the first floating component 210 and the second floating component 220 can be hollow buoys, buoys, floats or buoys, etc., which have a certain mass and can fall naturally along the first sliding track 240 and the second sliding track 250 and float in the water.

[0069] In one possible embodiment, the bracket 100 is provided with two sliding grooves, and the first floating member 210 and the second floating member 220 can slide in the corresponding sliding grooves respectively, so that the floating member group can slide in the vertical direction of the bracket 100.

[0070] Understandably, when the first floating member 210 and the second floating member 220 slide down the first sliding rail 240 and the second sliding rail 250 respectively under their own weight, the connecting rod 230 moves down together to pull the gate cable 310 and drive the gate plate 500 to rotate along the pivot, thus closing the through hole 110; when the first floating member 210 and the second floating member 220 rise relative to the support 100 by buoyancy, the gate cable 310 loosens, and the gate plate 500 rotates relative to the support 100 to open the through hole 110.

[0071] The pipe flushing device in this application embodiment further includes:

[0072] The connecting component 400 is mounted on the bracket 100 and is connected to the first floating member 210. The connecting component 400 is used to connect to the second floating member 220 after the gate plate 500 opens the through hole 110, so as to fix the second floating member 220.

[0073] In the pipe flushing device of this application embodiment, the connecting assembly 400 includes:

[0074] The connector 410 is rotatably connected to the bracket 100, and the second floating member 220 is provided with a connecting part 420.

[0075] The positioning cable 430 has one end connected to the connector 410 and the other end connected to the first floating member 210.

[0076] When the floating component group moves upward relative to the bracket 100 to the first preset position, the connector 410 engages with the connecting part 420, and the positioning cable 430 loosens.

[0077] The first floating member 210 is configured to tighten the positioning cable 430 when it moves downward relative to the bracket 100 to the second preset position, and drive the connector 410 to rotate relative to the bracket 100 through the positioning cable 430, so that the connector 410 is disengaged from the connector 420.

[0078] The second floating member 220 is configured such that when the connector 410 and the connecting part 420 are disengaged, the weight of the second floating member 220 causes it to move down to a second preset position.

[0079] In this embodiment, the first preset position can be the top of the first sliding track 240, and the second preset position can be the bottom of the first sliding track 240. When the first floating member 210 and the second floating member 220 rise together to the first preset position with buoyancy, the gate plate 500 opens, the positioning cable 430 loosens, the connecting member 410 engages with the connecting part 420, and the connecting member 410 fixes the second floating member 220, thereby keeping the through hole 110 open and allowing water to flow from the through hole 110 into the branch pipe.

[0080] Reference Figure 8 When the water in the inspection well 70 is discharged, the first floating member 210 moves downward under its own weight, while the second floating member 220 remains in the same position due to the fixing effect of the connecting member 410. As the distance between the first floating member 210 and the second floating member 220 increases, the connecting rod 230 extends. At this time, the middle part of the connecting rod 230 is located between the first preset position and the second preset position, and the through hole 110 remains open.

[0081] When the first floating member 210 moves down to the second preset position, it causes the positioning cable 430 to tighten. The positioning cable 430 drives the connecting member 410 to rotate relative to the bracket 100, thereby causing the connecting member 410 to disengage from the connecting part 420. Under its own gravity, the second floating member 220 moves up and down on the second sliding track 250. (Refer to...) Figure 5 When the second floating component 220 moves down to the second preset position, the connecting rod 230 pulls the gate cable 310, which in turn drives the gate plate 500 to close the through hole 110, so that the inspection well 70 enters the water storage state.

[0082] Furthermore, the connection assembly 400 also includes a reset member 440, one end of which is connected to the connector 410, and the other end of which is connected to the bracket 100.

[0083] The reset member 440 is configured to extend and drive the connector 410 to rotate relative to the bracket 100 toward the positioning cable 430 when the connector 410 disengages from the connector 420. In this embodiment, the reset member 440 is a spring.

[0084] Reference Figure 8It is understandable that when the first floating member 210 and the second floating member 220 are floated up by the buoyancy of the water flow and open the through hole 110, the water in the inspection well 70 flows into the branch pipe, the positioning cable 430 loosens, the reset member 440 is in a free state, the first floating member 210 and the second floating member 220 are located in the first preset position, the connecting member 410 is engaged with the connecting part 420, and the connecting member 410 thus plays a fixing role for the second floating member 220, reducing the possibility of the second floating member 220 moving up and down in the second sliding track 250;

[0085] As the water level in inspection well 70 drops, the first floating member 210 moves up and down along the first sliding track 240 with the water flow, while the second floating member 220 remains in position due to the tension of the connecting member 410. At this time, the connecting rod 230 extends. When the first floating member 210 moves to the second preset position, the positioning cable 430 tauts, and the water level continues to drop below the first floating member 210. After losing buoyancy, the first floating member 210 stretches the reset member 440 under its own weight, and the connecting member 410 rotates towards the positioning cable 430, causing the connecting member 410 to disengage from the connecting part 420. After losing the fixing effect of the connecting member 410, the second floating member 220 moves down on the second sliding track 250. When the second floating member 220 moves to the second preset position, the connecting rod 230 pulls the gate cable 310, causing the gate plate 500 to completely close the through hole 110.

[0086] In the pipe flushing device of this application embodiment, the connecting component 400 further includes a first pulley 450, which is rotatably mounted on the bracket 100, and the positioning cable 430 is wound around the first pulley 450.

[0087] In the pipe flushing device of this application embodiment, the locking assembly 300 further includes a second pulley 320, which is disposed on the top of the bracket 100, and the gate cable 310 is wound around the second pulley 320.

[0088] The first pulley 450 and the second pulley 320 are designed to prevent the gate cable 310 and the positioning cable 430 from crossing or getting tangled during movement.

[0089] In the pipe flushing device of this application embodiment, the locking assembly 300 further includes: an opening lock 330 and a trigger 340. Two parallel sliding seats 350 are fixedly connected on the bracket 100, and the two ends of the trigger 340 are respectively slidably disposed in the corresponding sliding seats 350.

[0090] The trigger 340 is configured to move upward relative to the sliding seat 350 under the action of the connecting rod 230 and contact the gate unlocking lock 330 so that the gate unlocking lock 330 unlocks the gate panel 500.

[0091] The gate lock 330 is configured to connect with the bracket 100 when the gate plate 500 closes the through hole 110, so as to lock the gate plate 500 onto the bracket 100.

[0092] Reference Figure 3 In the pipe flushing device of this application embodiment, the side of the trigger 340 away from the bracket 100 is fixedly connected to the baffle 360. When the connecting rod 230 moves upward relative to the bracket 100, it abuts against the baffle 360 ​​and pushes the trigger 340 upward so that the trigger 340 contacts the gate lock 330.

[0093] In the pipeline flushing device of this application embodiment, the gate lock 330 is a spring-loaded push lock.

[0094] Understandably, when the connecting rod 230 moves upward to the first preset position along with the floating component assembly, the connecting rod 230 pushes the baffle 360, causing the trigger 340 to slide within the sliding seat 350. When the trigger 340 moves within the sliding seat 350 to contact the gate lock 330, the gate lock 330 unlocks the gate plate 500, thereby opening the through hole 110 and allowing water in the inspection well 70 to flow into the branch pipe. The gate lock 330 ensures that the gate plate 500 can only open the through hole 110 when the water level in the inspection well 70 rises to the first preset height, guaranteeing the water storage capacity of the inspection well 70. This ensures that when the through hole 110 is open, the flow velocity of the water in the branch pipe can flush away sediment, reducing the possibility of sediment adhering to the inner wall of the branch pipe.

[0095] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0096] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A pipe flushing device, characterized in that, include: A bracket (100) is installed inside an inspection well (70), and the bracket (100) has a through hole (110) for connecting a branch pipe. Gate panel (500), the gate panel (500) is connected to one side of the bracket (100); The linkage component (200) includes a floating component group, which is slidably disposed on the side of the bracket (100) away from the gate panel (500); A locking assembly (300) includes a gate cable (310), one end of which is connected to the floating component assembly, and the other end of which passes through the bracket (100) and is connected to the gate panel (500). The floating assembly is configured to move upward relative to the support (100) under the buoyancy of the water in the inspection well (70), and drive the gate plate (500) to rotate relative to the support (100) via the gate cable (310) to open the through hole (110); under the drop in water level in the inspection well (70) and its own gravity, it moves downward relative to the support (100), and drive the gate plate (500) to rotate relative to the support (100) via the gate cable (310) to close the through hole (110). The linkage assembly (200) further includes a connecting rod (230), a first sliding rail (240), and a second sliding rail (250), wherein the first sliding rail (240) and the second sliding rail (250) are disposed on the bracket (100) and are respectively located on both sides of the through hole (110); The floating component assembly includes a first floating component (210) slidably disposed on a first sliding rail (240) and a second floating component (220) slidably disposed on a second sliding rail (250). The first floating component (210) and the second floating component (220) are connected by the connecting rod (230), and the gate cable (310) is connected to the connecting rod (230). A connecting component (400) is mounted on the bracket (100). The connecting component (400) is connected to the first floating member (210). The connecting component (400) is used to connect to the second floating member (220) after the gate plate (500) opens the through hole (110) to fix the second floating member (220). The connection component (400) includes: A connecting piece (410) is rotatably connected to the bracket (100), and a connecting part (420) is provided on the second floating member (220). A positioning cable (430) is provided, one end of which is connected to the connector (410), and the other end of which is connected to the first floating member (210). When the floating component group moves upward relative to the bracket (100) to the first preset position, the connector (410) engages with the connecting part (420), and the positioning cable (430) is relaxed; The first floating member (210) is configured to tighten the positioning cable (430) when it moves downward relative to the bracket (100) to a second preset position, and drive the connector (410) to rotate relative to the bracket (100) through the positioning cable (430) so that the connector (410) disengages from the connector (420); The second floating member (220) is configured to move down to the second preset position under the weight of the second floating member (220) when the connector (410) disengages from the connector (420).

2. The pipe flushing device according to claim 1, characterized in that, The connecting assembly (400) further includes a reset member (440), one end of which is connected to the connecting member (410), and the other end of which is connected to the bracket (100); The reset member (440) is configured to extend and drive the connector (410) to rotate relative to the bracket (100) toward the positioning cable (430) when the connector (410) disengages from the connector (420).

3. The pipe flushing device according to claim 2, characterized in that, The connecting assembly (400) further includes a first pulley (450), which is rotatably mounted on the bracket (100), and the positioning cable (430) is wound around the first pulley (450).

4. The pipe flushing device according to any one of claims 1-3, characterized in that, The locking assembly (300) further includes a second pulley (320), which is disposed on the top of the bracket (100), and the gate cable (310) is wound around the second pulley (320).

5. The pipe flushing device according to any one of claims 1-3, characterized in that, The door locking assembly (300) further includes: a gate lock (330) and a trigger (340). Two parallel sliding seats (350) are fixedly connected to the bracket (100). The two ends of the trigger (340) are respectively slidably disposed in the corresponding sliding seats (350). The trigger (340) is configured to move upward relative to the sliding seat (350) under the action of the connecting rod (230) and contact the gate unlocking lock (330) so that the gate unlocking lock (330) unlocks the gate panel (500); The gate lock (330) is configured to connect with the bracket (100) when the gate plate (500) closes the through hole (110) to lock the gate plate (500) onto the bracket (100).

6. The pipe flushing device according to claim 5, characterized in that, The trigger (340) is fixedly connected to a baffle (360) on the side facing away from the bracket (100). When the connecting rod (230) moves upward relative to the bracket (100), it abuts against the baffle (360) and pushes the trigger (340) upward so that the trigger (340) contacts the gate lock (330).

7. The pipe flushing device according to claim 5, characterized in that, The gate opening lock (330) is a spring-loaded lock.

Images