CN219364757U - River course ecological remediation dredging device - Google Patents

River course ecological remediation dredging device Download PDF

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Publication number
CN219364757U
CN219364757U CN202223317224.4U CN202223317224U CN219364757U CN 219364757 U CN219364757 U CN 219364757U CN 202223317224 U CN202223317224 U CN 202223317224U CN 219364757 U CN219364757 U CN 219364757U
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China
Prior art keywords
dredging
mud
plate
pipe
storage tank
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CN202223317224.4U
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Chinese (zh)
Inventor
孙琳
曲晓锋
吴闪闪
曾胜学
韩群慧
熊承旺
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Hubei Xintianyu Water Conservancy And Hydropower Engineering Co ltd
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Hubei Xintianyu Water Conservancy And Hydropower Engineering Co ltd
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Priority to CN202223317224.4U priority Critical patent/CN219364757U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40Protecting water resources
    • Y02A20/402River restoration

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Abstract

The utility model discloses a dredging device for ecological restoration of a river channel, which belongs to the technical field of hydraulic engineering and comprises a dredging ship, wherein a mud storage tank is connected above the dredging ship, and a mud discharge pipe is connected on the side wall of the mud storage tank; the utility model sets up the pushing component, when utilizing the mud pipe to discharge the silt in the mud storage tank, push the push plate to the fixed frame inside, the push plate moves and drives the connecting rod to move and the reset spring to contract, the connecting rod moves and drives the movable plate to move, the movable plate moves and drives the push rod to move to the periphery of the mud pipe, then unclamped the push plate, the reset spring loses the external force effect and deforms to restore the original appearance, drives the push plate, the connecting rod and the movable plate to move, the movable plate moves and drives the push rod to move to the inside of the mud pipe, and then can realize the reciprocating motion of the push rod in the inside of the mud pipe, and in the reciprocating motion process of the push rod, the mud in the mud pipe can be pushed to move, so that the mud is prevented from blocking the mud pipe, and the mud outlet effect of the mud pipe is ensured.

Description

River course ecological remediation dredging device
Technical Field
The utility model belongs to the technical field of hydraulic engineering, and particularly relates to a river ecological restoration dredging device.
Background
River dredging generally refers to river treatment, belongs to hydraulic engineering, and mainly adopts a construction method of manually cleaning and mechanically transporting and unloading.
The utility model provides a China patent application number 202122392938.0 discloses a river course ecological remediation dredging device for hydraulic engineering, sets up in the anti-interference shell through with mechanical transmission structure among the prior art, and easy when extracting silt, because silt causes the problem of influence to mechanical transmission, the present proposal is following, and it includes the desilting ship, the fixed storage tank that is provided with in top of desilting ship, one side fixed mounting of storage tank has the pump, and the output fixed intercommunication of pump has the mud pipe, and the mud pipe extends to in the storage tank, and the fixed intercommunication of the input of pump has the mud pipe, and the outside slip cap of mud pipe is equipped with communicating pipe, and the bottom fixed intercommunication of communicating pipe has the suction hood. The utility model has reasonable structural design, can protect a motor and a mechanical transmission structure, avoid influencing the motor and the mechanical transmission structure when extracting the silt, and can stir larger silt and aquatic weeds at the water bottom when extracting the silt so as to avoid the problem of blockage.
In the above patent, the side wall of the mud storage tank is connected with a mud discharging pipe, and in the process of discharging mud by the mud discharging pipe, the mud is easy to block in the mud discharging pipe, so that the mud discharging effect of the mud discharging pipe is affected; in addition, be connected with the safety cover at taking out mud cover internally mounted, the inside motor and initiative conical gear and the driven conical gear of being provided with of safety cover, the setting of safety cover brings inconvenience for the daily maintenance operation of motor, initiative conical gear and driven conical gear easily.
Disclosure of Invention
To solve the problems set forth in the background art. The utility model provides a river ecological restoration dredging device which has the characteristics of pushing materials and convenient maintenance.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a river course ecological remediation dredging device, includes the dredging ship, the top of dredging ship is connected with the mud storage tank, is connected with the mud pipe on the lateral wall of mud storage tank, and the position department that just corresponds the mud pipe on the mud storage tank is provided with pushing component, and one side of mud storage tank is provided with the mud pumping mechanism, and the one end of mud pumping mechanism is provided with broken mechanism, is provided with coupling assembling between mud pumping mechanism and the broken mechanism.
Preferably, the pushing component comprises a fixed frame, a connecting rod, a push plate, a reset spring, a perforation, a movable plate and a push rod, wherein the fixed frame is connected to the outer side wall of the mud storage tank, the push plate is arranged in the fixed frame, the reset spring is connected between the push plate and the mud storage tank, the connecting rod is connected to one side of the push plate, which is close to the mud storage tank, of the push plate, the perforation is arranged on the side wall of the mud storage tank and corresponds to the position of the connecting rod, one end of the connecting rod is connected with the movable plate, and the push rod is connected to the side wall of the movable plate and corresponds to the position of the mud discharge pipe.
Preferably, both ends of the push plate are connected with limiting sliding blocks, and limiting sliding grooves are formed in the inner side walls of the fixed frames and correspond to the positions of the limiting sliding blocks.
Preferably, the coupling assembling includes connecting cover, connecting plate, connecting screw rod and screwed ring, and the one end that the mud pumping mechanism is close to broken mechanism is connected with the connecting plate, and broken mechanism's periphery is provided with the connecting cover, and one side both ends that the connecting cover is close to the connecting plate all are connected with the connecting screw rod, and the position department that just corresponds the connecting screw rod on the connecting plate is provided with the through-hole, and screwed connection has the screwed ring on the lateral wall of connecting screw rod.
Preferably, one side of the connecting plate, which is close to the connecting cover, is connected with a sealing gasket, and an annular groove is arranged above the connecting cover and at a position corresponding to the sealing gasket.
Preferably, the connecting assembly further comprises a sealing cylinder and a sealing groove, the periphery of the threaded ring is provided with the sealing cylinder, a fixing rod is connected between the sealing cylinder and the threaded ring, the sealing groove is arranged above the connecting plate and corresponds to the sealing cylinder, and a sealing gasket is connected to the outer side wall of one side of the sealing cylinder, which is close to the sealing groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model sets up the pushing component, when utilizing the mud pipe to discharge the silt in the mud storage tank, push the push plate to the fixed frame inside, the push plate moves and drives the connecting rod to move and the reset spring to contract, the connecting rod moves and drives the movable plate to move, the movable plate moves and drives the push rod to move to the periphery of the mud pipe, then unclamped the push plate, the reset spring loses the external force effect and deforms to restore the original appearance, drives the push plate, the connecting rod and the movable plate to move, the movable plate moves and drives the push rod to move to the inside of the mud pipe, and then can realize the reciprocating motion of the push rod in the inside of the mud pipe, and in the reciprocating motion process of the push rod, the mud in the mud pipe can be pushed to move, so that the mud is prevented from blocking the mud pipe, and the mud outlet effect of the mud pipe is ensured.
2. The utility model is provided with the connecting component, the connecting cover at the periphery of the crushing mechanism is moved to the connecting plate on the mud pumping mechanism, the connecting cover is moved to drive the connecting screw rod to pass through the through hole, then the threaded ring is rotationally screwed on the connecting screw rod, and the threaded ring is rotationally moved to drive the sealing cylinder to rotationally move and be inserted into the sealing groove, so that the connecting plate and the connecting cover can be detachably connected, the mud pumping mechanism and the crushing mechanism are connected, the follow-up daily maintenance operation of the parts in the crushing mechanism by staff is facilitated, and the running effect of the crushing mechanism is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is an enlarged view of the utility model at A in FIG. 2;
FIG. 4 is an enlarged view of the utility model at B in FIG. 2;
FIG. 5 is a partial cross-sectional view showing the connection state of the mud pumping mechanism and the crushing mechanism of the present utility model;
fig. 6 is an enlarged view of fig. 5C in accordance with the present utility model.
In the figure: 1. a mud pumping mechanism; 2. a mud storage tank; 3. a pushing component; 31. a fixed frame; 32. a connecting rod; 33. a push plate; 34. a return spring; 35. perforating; 36. a moving plate; 37. a push rod; 4. dredging ship; 5. a connection assembly; 51. a connection cover; 52. a connecting plate; 53. a sealing cylinder; 54. a connecting screw; 55. a threaded ring; 56. sealing grooves; 6. a mud pipe; 7. and a crushing mechanism.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-6, the present utility model provides the following technical solutions: the utility model provides a river course ecological remediation dredging device, includes dredging ship 4, and dredging ship 4's top is connected with mud storage tank 2, is connected with mud pipe 6 on the lateral wall of mud storage tank 2, and the position department that just corresponds mud pipe 6 on the mud storage tank 2 is provided with pushing away material subassembly 3, and one side of mud storage tank 2 is provided with the mud pumping mechanism 1, and the one end of mud pumping mechanism 1 is provided with broken mechanism 7, is provided with coupling assembling 5 between mud pumping mechanism 1 and the broken mechanism 7.
Specifically, the pushing assembly 3 comprises a fixed frame 31, a connecting rod 32, a pushing plate 33, a return spring 34, a perforation 35, a moving plate 36 and a pushing rod 37, wherein the fixed frame 31 is connected to the outer side wall of the mud storage tank 2, the pushing plate 33 is arranged in the fixed frame 31, the return spring 34 is connected between the pushing plate 33 and the mud storage tank 2, the connecting rod 32 is connected to one side of the pushing plate 33 close to the mud storage tank 2, the perforation 35 is arranged on the side wall of the mud storage tank 2 and corresponds to the position of the connecting rod 32, one end of the connecting rod 32 is connected to the moving plate 36, the pushing rod 37 is connected to the side wall of the moving plate 36 and corresponds to the position of the mud discharge pipe 6,
through adopting above-mentioned technical scheme, can promote the catch bar 37 and carry out reciprocating motion in the interior of mud pipe 6, can promote the silt of the interior of mud pipe 6 under the effect of catch bar 37 and go out mud operation, avoid silt to stop up mud pipe 6.
Specifically, both ends of the push plate 33 are connected with limit sliding blocks, limit sliding grooves are arranged on the inner side wall of the fixed frame 31 and at positions corresponding to the limit sliding blocks,
by adopting the technical scheme, the limiting guide function is provided for the movement of the push plate 33, and the stability of the movement of the push plate 33 is improved.
When the embodiment is used, in the ecological restoration process of a river channel, when the sludge in the river channel is required to be subjected to dredging operation, a dredging ship 4 is placed in the river channel to be dredged, then a sludge pumping mechanism 1 and a crushing mechanism 7 are started, the sludge in the river channel is pumped out by the sludge pumping mechanism 1, the crushing mechanism 7 is used for crushing the sludge close to the sludge pumping mechanism 1, the sludge pumping mechanism 1 is convenient to pump out, the sludge in the river channel can be conveyed into a sludge storage tank 2 for collecting and storing operation under the action of the sludge pumping mechanism 1, after dredging is completed, when the sludge in the sludge storage tank 2 is required to be subjected to discharging treatment operation, a valve on a sludge discharging pipe 6 is opened, the sludge in the sludge storage tank 2 is discharged through the sludge discharging pipe 6, in the discharging process, a pushing plate 33 is pressed towards the inside of a fixed frame 31, the push plate 33 moves to drive the connecting rod 32 to move and the return spring 34 to contract, the connecting rod 32 moves to drive the moving plate 36 to move, the moving plate 36 moves to drive the pushing rod 37 to move to the periphery of the sludge discharge pipe 6, then the push plate 33 is loosened, the return spring 34 loses the action of external force to deform to restore the original appearance, the push plate 33 is driven to move to the periphery of the fixed frame 31, the push plate 33 moves to drive the connecting rod 32 to move, the connecting rod 32 moves to drive the moving plate 36 to move, the moving plate 36 moves to drive the pushing rod 37 to move to the inside of the sludge discharge pipe 6, further the reciprocating movement of the pushing rod 37 in the inside of the sludge discharge pipe 6 can be realized, the sludge inside the sludge discharge pipe 6 can be pushed to move, the sludge is prevented from being blocked by the sludge discharge pipe 6, and the sludge discharge effect of the sludge discharge pipe 6 is ensured;
example 2
This embodiment differs from embodiment 1 in that: the connecting component 5 comprises a connecting cover 51, a connecting plate 52, a connecting screw 54 and a threaded ring 55, wherein one end of the mud pumping mechanism 1 close to the crushing mechanism 7 is connected with the connecting plate 52, the periphery of the crushing mechanism 7 is provided with the connecting cover 51, two ends of one side of the connecting cover 51 close to the connecting plate 52 are respectively connected with the connecting screw 54, through holes are arranged on the connecting plate 52 and correspond to the connecting screw 54, the threaded ring 55 is connected on the outer side wall of the connecting screw 54 in a threaded way,
specifically, one side of the connecting plate 52, which is close to the connecting cover 51, is connected with a sealing gasket, an annular groove is arranged above the connecting cover 51 and at a position corresponding to the sealing gasket,
through adopting above-mentioned technical scheme, avoid there being the gap between connecting plate 52 and the junction housing 51, and then can avoid dredging the in-process, the inside water of river course enters into inside the junction housing 51 through the gap, and then can avoid the inside part of crushing mechanism 7 of junction housing 51 to receive the erosion effect of water.
Specifically, the connecting component 5 also comprises a sealing cylinder 53 and a sealing groove 56, the periphery of the threaded ring 55 is provided with the sealing cylinder 53, a fixed rod is connected between the sealing cylinder 53 and the threaded ring 55, the sealing groove 56 is arranged above the connecting plate 52 and at the position corresponding to the sealing cylinder 53, the outer side wall of one side of the sealing cylinder 53 close to the sealing groove 56 is connected with a sealing gasket,
through adopting above-mentioned technical scheme, avoid dredging the in-process, the water in the river course falls on connecting screw rod 54 and the screwed ring 55, causes connecting screw rod 54 and screwed ring 55 to take place the corrosion, influences the connection effect of connecting screw rod 54 and screwed ring 55.
When the device is used, the connecting cover 51 on the periphery of the crushing mechanism 7 moves towards the connecting plate 52 on the mud pumping mechanism 1, the connecting cover 51 moves to drive the connecting screw 54 to pass through the through hole, then the threaded ring 55 is rotationally screwed on the connecting screw 54, the threaded ring 55 rotationally moves to drive the sealing cylinder 53 to rotationally insert into the sealing groove 56, so that the connecting plate 52 and the connecting cover 51 can be detachably connected, the mud pumping mechanism 1 and the crushing mechanism 7 are connected, the follow-up daily maintenance operation of parts in the crushing mechanism 7 by staff is facilitated, and the operation effect of the crushing mechanism 7 is guaranteed.
The utility model discloses a structure and a principle of a mud pumping mechanism 1 consisting of a mud pumping pump, a mud outlet pipe, a mud pumping pipe, a communicating pipe, a sealing ring, an air cylinder and a connecting plate, which are disclosed in a river ecological restoration dredging device for hydraulic engineering, wherein the structure and the principle are disclosed in China patent application number 202122392938.0, and the working principle is as follows: one side fixed mounting of mud storage tank 2 has the mud pump, the output fixed intercommunication of mud pump has the mud pipe, the mud pipe extends to in the mud storage tank 2, the fixed intercommunication of input of mud pump has the mud pipe, the outside slip cap of mud pipe is equipped with communicating pipe, the bottom fixed intercommunication of communicating pipe has connecting plate 52, one side fixed mounting of mud storage tank 2 has the mounting panel, mud pump fixed mounting is on the mounting panel, fixed mounting has the cylinder on the mounting panel, fixed mounting has the connecting plate on the piston shaft of cylinder, communicating pipe fixed mounting is in the inboard of connecting plate, conveniently drive the communicating pipe reciprocates, the outside of mud pipe is equipped with sealing washer, communicating pipe and sealing washer sliding seal contact play sealed effect, drive mud pump, carry out the operation of extracting silt through mud pipe, communicating pipe.
The utility model discloses a structure and a principle of a crushing mechanism 7 consisting of a motor, a protective cover, a transverse shaft, a driving bevel gear, a vertical shaft, a driven bevel gear and crushing blades, which are disclosed in a river ecological restoration dredging device for hydraulic engineering, wherein the river ecological restoration dredging device for the hydraulic engineering is disclosed in China patent application number 202122392938.0, and the working principle is as follows: the protection cover 51 is connected with the protection cover on two inside walls, the motor is connected with the inside wall of the protection cover, the cross shaft is fixedly installed on the output shaft of the motor, two driving conical gears are fixedly sleeved on the outer side of the cross shaft, vertical shafts are rotatably installed in the two protection covers, driven conical gears are fixedly installed on the top ends of the two vertical shafts, the two driving conical gears are meshed with the corresponding driven conical gears, the driving conical gears and the driven conical gears on the left side are located on the inner side of the protection cover on the left side, the driving conical gears and the driven conical gears on the right side are located on the inner side of the protection cover on the right side, the two vertical shafts extend out of the corresponding protection cover and are fixedly installed with a plurality of stirring blades, the driving motor drives the cross shaft to rotate, the driving conical gears are driven conical gears to rotate, the driven conical gears are driven conical gears to rotate, the vertical shafts are driven conical gears to rotate, the crushing blades are driven to rotate, and the crushing blades can crush sludge in the rotation process.
The working principle and the using flow of the utility model are as follows: in the ecological restoration process of the river course, when the sludge in the river course is required to be dredged, firstly, the connecting cover 51 at the periphery of the crushing mechanism 7 is moved to the connecting plate 52 on the sludge pumping mechanism 1, the connecting cover 51 is moved to drive the connecting screw 54 to pass through the through hole, then the threaded ring 55 is rotationally screwed on the connecting screw 54, the threaded ring 55 is rotationally moved to drive the sealing cylinder 53 to rotationally insert into the sealing groove 56, so that the connecting plate 52 and the connecting cover 51 can be detachably connected, the sludge pumping mechanism 1 and the crushing mechanism 7 are ensured to be connected, meanwhile, the subsequent daily maintenance operation of the components in the crushing mechanism 7 is facilitated for workers, the operation effect of the crushing mechanism 7 is ensured, then the dredging boat 4 is placed into the river course to be dredged, the sludge pumping mechanism 1 and the crushing mechanism 7 are started, the sludge in the river course is pumped by the sludge pumping mechanism 1, the crushing mechanism 7 is used for crushing the sludge close to the sludge pumping mechanism 1, so as to facilitate the sludge pumping mechanism 1 to pump out, under the action of the sludge pumping mechanism 1, the sludge in the river channel can be conveyed into the sludge storage tank 2 to be collected and stored, after dredging is completed, when the sludge in the sludge storage tank 2 is required to be discharged, the valve on the sludge discharge pipe 6 is opened, the sludge in the sludge storage tank 2 is discharged through the sludge discharge pipe 6, in the discharging process, the pushing plate 33 is pressed towards the inside of the fixed frame 31, the pushing plate 33 moves to drive the connecting rod 32 to move and the reset spring 34 to shrink, the connecting rod 32 moves to drive the moving plate 36 to move, the moving plate 36 moves to drive the pushing rod 37 to move towards the periphery of the sludge discharge pipe 6, then the pushing plate 33 is released, the reset spring 34 loses the external force to deform and restore the original appearance, the pushing plate 33 is driven to move towards the periphery of the fixed frame 31, the connecting rod 32 is driven to move, the connecting rod 32 moves to drive the movable plate 36 to move, and the movable plate 36 moves to drive the push rod 37 to move towards the interior of the sludge discharge pipe 6, so that the push rod 37 can reciprocate in the interior of the sludge discharge pipe 6, and in the reciprocating process of the push rod 37, the sludge in the interior of the sludge discharge pipe 6 can be pushed to move, so that the sludge is prevented from blocking the sludge discharge pipe 6, and the sludge discharge effect of the sludge discharge pipe 6 is ensured.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a river course ecological remediation dredging device, includes dredging ship, its characterized in that: the dredging ship comprises a dredging ship body, wherein a dredging pipe is arranged on the dredging ship body, a dredging mechanism is arranged on one side of the dredging ship body, a dredging box is connected above the dredging ship, a dredging pipe is connected to the side wall of the dredging box, a pushing component is arranged at the position, corresponding to the dredging pipe, of the dredging box, a dredging mechanism is arranged on one side of the dredging box, a crushing mechanism is arranged at one end of the dredging mechanism, and a connecting component is arranged between the dredging mechanism and the crushing mechanism.
2. The river course ecological restoration dredging device according to claim 1, wherein: the pushing assembly comprises a fixed frame, a connecting rod, a pushing plate, a reset spring, a perforation, a movable plate and a pushing rod, wherein the fixed frame is connected to the outer side wall of the mud storage tank, the pushing plate is arranged in the fixed frame, the reset spring is connected between the pushing plate and the mud storage tank, the connecting rod is connected to one side of the pushing plate, which is close to the mud storage tank, the perforation is arranged on the side wall of the mud storage tank and corresponds to the position of the connecting rod, one end of the connecting rod is connected with the movable plate, and the pushing rod is connected to the side wall of the movable plate and corresponds to the position of the mud discharge pipe.
3. The river course ecological restoration dredging device according to claim 2, wherein: both ends of the push plate are connected with limiting sliding blocks, and limiting sliding grooves are formed in the inner side walls of the fixed frames and correspond to the positions of the limiting sliding blocks.
4. The river course ecological restoration dredging device according to claim 1, wherein: the connecting assembly comprises a connecting cover, a connecting plate, a connecting screw and a threaded ring, wherein one end of the mud pumping mechanism, which is close to the crushing mechanism, is connected with the connecting plate, the connecting cover is arranged on the periphery of the crushing mechanism, the connecting screw is connected to two ends of one side, which is close to the connecting plate, of the connecting cover, through holes are formed in the connecting plate and correspond to the position of the connecting screw, and the threaded ring is connected to the outer side wall of the connecting screw in a threaded manner.
5. The river course ecological restoration dredging device according to claim 4, wherein: one side of the connecting plate, which is close to the connecting cover, is connected with a sealing gasket, and an annular groove is arranged above the connecting cover and at a position corresponding to the sealing gasket.
6. The river course ecological restoration dredging device according to claim 1, wherein: the connecting assembly further comprises a sealing cylinder and a sealing groove, the periphery of the threaded ring is provided with the sealing cylinder, a fixing rod is connected between the sealing cylinder and the threaded ring, the sealing groove is arranged above the connecting plate and corresponds to the position of the sealing cylinder, and a sealing gasket is connected to the outer side wall of one side, close to the sealing groove, of the sealing cylinder.
CN202223317224.4U 2022-12-09 2022-12-09 River course ecological remediation dredging device Active CN219364757U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223317224.4U CN219364757U (en) 2022-12-09 2022-12-09 River course ecological remediation dredging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223317224.4U CN219364757U (en) 2022-12-09 2022-12-09 River course ecological remediation dredging device

Publications (1)

Publication Number Publication Date
CN219364757U true CN219364757U (en) 2023-07-18

Family

ID=87145630

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223317224.4U Active CN219364757U (en) 2022-12-09 2022-12-09 River course ecological remediation dredging device

Country Status (1)

Country Link
CN (1) CN219364757U (en)

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