Underwater dredging device

Abstract

The utility model provides an underwater desilting device which comprises a pontoon, a swing rod and a housing, a ploughing cutter is arranged in the housing, a sand pumping hole is formed in the rear side wall of the housing, the sand pumping hole is connected with a sand pumping pipe, a submersible pump is hoisted at the rear end of the pontoon through an electric hoist, an inlet of the submersible pump is communicated with the flexible sand pumping pipe, and a sand discharging pipe is arranged at an outlet of the submersible pump. Two auxiliary walking mechanisms are symmetrically arranged on the left side and the right side of the housing, each auxiliary walking mechanism comprises a rotating arm and a trundle, the upper end of each rotating arm is rotationally installed on the side wall of the housing through a rotating shaft, each trundle is arranged at the lower end of the corresponding rotating arm, fixing blocks are arranged on the positions, on the left side and the right side of each rotating arm, of the side wall of the housing respectively, and the two fixing blocks are connected with the fixing blocks through tension springs respectively. According to the utility model, the auxiliary walking mechanisms are arranged on the two sides of the housing, correspond to the bottom of the adjusting tank, and support the housing and the ploughing cutter, so that the housing stably moves forwards along the bottom of the adjusting tank, and the stable sand casting operation of the ploughing cutter is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of water treatment, and particularly relates to a bottom silt cleaning device. Background Technique

[0002] At present, the bottom silt cleaning device in the water supply system basically includes a floating boat and a sand turning mechanism hoisted at the bow of the floating boat. The sand turning mechanism includes a housing and a tillage tool arranged inside the housing. The tillage tool stirs and turns the silt at the bottom of the regulating pond. The submersible pump hoisted on the floating boat operates, and the stirred silt is sucked and discharged through a sand discharge pipe to realize the silt cleaning operation of the regulating pond.

[0003] It is found in actual operation that since the existing sand turning mechanism is simply hoisted on the floating boat and lacks a support connection relationship with the bottom of the regulating pond, the operation stability of the tillage tool is poor. And when directly installing caster wheels for walking on the housing simply, due to the existence of sediment hard blocks at the bottom of the regulating pond, the caster wheels get stuck, which also affects the smooth operation of the sand turning mechanism. Content of the Utility Model

[0004] In view of this, the utility model aims to provide a bottom silt cleaning device to realize smooth movement and sand turning at the bottom of the regulating pond and improve the silt cleaning effect at the bottom of the pond.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A bottom silt cleaning device includes a floating boat, a swing rod hoisted at the bow position of the floating boat, and a housing arranged at the front end of the swing rod. The housing is respectively provided with openings facing forward and downward, and a tillage tool is arranged inside. A sand extraction hole is opened on the rear side wall of the housing, and the sand extraction hole is connected to a sand extraction pipe. A submersible pump is hoisted at the rear end of the floating boat by an electric hoist. The inlet of the submersible pump is communicated with a flexible sand extraction pipe, and a sand discharge pipe is arranged at the outlet of the submersible pump. Two auxiliary walking mechanisms are symmetrically arranged on the left and right sides of the housing. The auxiliary walking mechanism includes a rotating arm and a caster wheel. The upper end of the rotating arm is rotatably installed on the side wall of the housing through a rotating shaft, and the caster wheel is arranged at the lower end of the rotating arm. Fixing blocks are respectively arranged at the left and right side positions of the rotating arm on the side wall of the housing, and the two fixing blocks are respectively connected to the fixing blocks through a tension spring.

[0007] Further, the front end of the swing rod of the floating boat extends out from the bow of the floating boat, the rear end of the swing rod is rotatably installed on the floating boat, a winch is arranged at the rear end of the floating boat, a rope winding bracket is arranged at the bow position of the floating boat, and a pulley is arranged at the top of the rope winding bracket. The rope of the winch bypasses the pulley and is connected to the swing rod.

[0008] Further, a connecting bracket is arranged at the front end of the swing rod, and the housing is connected to the connecting bracket through a turning mechanism;

[0009] The flipping mechanism includes a hinge shaft and a telescopic rod. The hinge shaft rotatably connects the housing and the connecting bracket. The telescopic rod is located beside the hinge shaft, with one end hinged to the connecting bracket and the other end hinged to the housing.

[0010] Furthermore, the telescopic rod is a hydraulic telescopic rod.

[0011] Furthermore, the tillage tool is a rotary tillage blade or a spiral reamer, and a motor for driving the tillage tool to rotate is provided at the top of the housing.

[0012] Furthermore,

[0013] Furthermore, the lowest end of the caster wheel rim is lower than the lowest end of the tillage tool.

[0014] Furthermore, a power distribution cabinet and a hydraulic system are provided at the rear end of the floating boat. The power distribution cabinet supplies power to the electrical components on the floating boat, and the hydraulic system supplies hydraulic oil to the hydraulic components on the floating boat.

[0015] Compared with the prior art, the underwater dredging device of the present utility model has the following advantages:

[0016] (1) In the present utility model, auxiliary walking mechanisms are provided on both sides of the housing, corresponding to the bottom of the adjustment pool, to support the housing and the tillage tool, enabling the housing to move forward smoothly along the bottom of the adjustment pool and ensuring the smooth tillage operation of the tillage tool; at the same time, the setting of the tension spring and the rotating arm in the auxiliary walking mechanism gives the caster wheel a certain degree of flipping freedom, preventing the caster wheel from getting stuck by the protruding sediment hard blocks at the bottom of the adjustment pool, ensuring the smooth forward movement of the housing, improving the smoothness of the tillage operation of the tillage tool, and enhancing the dredging effect of the bottom of the adjustment pool.

[0017] (2) In the present utility model, the flipping mechanism can change the elevation angle of the housing to protect the tillage area at the bottom of the adjustment pool and prevent the silt from spreading outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic structural diagram of an underwater dredging device according to an embodiment of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the auxiliary walking mechanism on the housing in this embodiment;

[0021] Figure 3 is a schematic structural diagram of the tillage tool in the housing in this embodiment.

[0022] Description of the reference numerals:

[0023] 1- floating boat; 2- rope support; 3- swing arm; 4- sand pumping pipe; 5- connecting bracket; 6- cover; 61- sand pumping hole; 7- tillage tool; 71- motor; 8- auxiliary walking mechanism; 81- rotating shaft; 82- rotating arm; 83- tension spring; 84- fixing block; 85- caster; 9- flip mechanism; 91- telescopic rod; 92- support; 93- hinge shaft; 10- submersible pump; 11- electric hoist; 12- power distribution cabinet; 13- hydraulic system; 14- winch. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figure 1 As shown, an underwater dredging device includes a floating boat 1 and a swing arm 3. The floating boat 1 is formed by connecting two pontoons arranged in parallel, and a distance is left between the two pontoons. A rope winding bracket 2 is provided at the bow of the floating boat 1, and a pulley is provided on the top of the rope winding bracket 2. A winch 14 is provided near the stern of the floating boat 1. An electric hoist 11 is provided at the stern of the floating boat 1 through a fixed frame, and a submersible pump 10 is hoisted on the electric hoist 11. The swing arm 3 is arranged between the two pontoons, and the rear end of the swing arm 3 is hinged to the base provided on the floating boat 1, and the front end of the swing arm 3 extends out of the bow of the floating boat 1. The rope of the winch 14 passes through the pulley of the rope winding bracket 2 and is connected to the swing arm 3 to hoist the swing arm 3. A cover shell 6 is provided at the front end of the swing arm 3, and the cover shell 6 is provided with openings facing forward and downward respectively. A tilling tool 7 is provided in the cover shell 6. The tilling tool 7 is a rotary tiller or a spiral reamer, such as Figure 3 As shown. The motor 71 matched with the tilling tool 7 is arranged on the cover 6, and the motor 71 is a reduction motor. During operation, the front end of the swing arm 3 rotates downward until it reaches the bottom of the regulating tank, the tilling tool 7 stirs and turns the sludge at the bottom of the regulating tank, and the cover 6 surrounds the turned-up sludge to reduce excessive diffusion of the sludge, so that the water source in the regulating tank remains relatively clean. A sand extraction hole 61 is provided on the rear side wall of the cover 6, and the sand extraction hole is connected to the sand extraction pipe 4. The outlet of the sand extraction pipe 4 is connected to the inlet of the submersible pump 10, and the outlet of the submersible pump 10 is connected to the sand discharge pipe. The submersible pump 10 is turned on to suck the stirred sludge in time and discharge the sucked sludge through the sand discharge pipe.

[0026] Two auxiliary walking mechanisms 8 are symmetrically arranged on the left and right sides of the housing 6. Figure 2 As shown, it includes a rotating arm 82 and a caster 85. The upper end of the rotating arm 82 is rotatably mounted on the side wall of the housing 6 through a rotating shaft 81. The caster 85 is arranged at the lower end of the rotating arm 82. The lowest end of the wheel rim of the caster 85 is lower than the lowest end of the tilling tool 7. The side wall of the housing 6 is provided with a fixing block 84 at the left and right sides of the rotating arm 82, and the two fixing blocks 84 are connected to the fixing block 84 through a tension spring 83.

[0027] In the present utility model, the caster 85 abuts against the bottom of the adjustment tank to support the housing and the tillage cutter, enabling the housing to move smoothly forward along the bottom of the adjustment tank and ensuring the smooth sand tilling operation of the tillage cutter. At the same time, the swivel arm 82 where the caster is installed is rotatably connected to the housing through a rotating shaft 81, and a tension spring 83 is provided between the swivel arm 82 and the housing 6, such that the caster 85 has a certain degree of freedom to rotate around the rotating shaft 81. When the caster encounters a hard sediment lump during the forward movement, the caster rotates backward around the rotating shaft 81 to avoid the hard sediment lump, preventing the hard sediment lump from jamming the caster and ensuring the stability of the movement operation of the housing and the tillage cutter.

[0028] In the present utility model, a connecting bracket 5 is provided at the front end of the swing rod 3, and the housing 6 is connected to the connecting bracket 5 through a flipping mechanism 9. The flipping mechanism 9 includes a hinge shaft 93 and a telescopic rod 91. The hinge shaft 93 rotatably connects the housing 6 and the connecting bracket 5. The telescopic rod 91 is preferably a hydraulic telescopic rod and is located beside the hinge shaft 93. One end of the telescopic rod 91 is hinged to the connecting bracket 5, and the other end is hinged to a support 92 provided on the housing 6.

[0029] A power distribution cabinet 12 and a hydraulic system 13 are provided at the rear end of the floating ship 1. The power distribution cabinet 12 supplies power to the electrical components on the floating ship 1, and the hydraulic system 13 supplies hydraulic oil to the hydraulic components on the floating ship 1.

[0030] In the present utility model, an auxiliary walking mechanism 8 is provided on the housing 6 to support the housing and the tillage cutter at the bottom of the adjustment tank, improving the smoothness of the movement and operation of the housing and the tillage cutter, and thus improving the smoothness of the dredging operation at the bottom of the adjustment tank.

[0031] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An underwater dredging device, comprising a floating boat (1), a swing rod (3) hoisted at the bow position of the floating boat (1), and a housing (6) provided at the front end of the swing rod (3). The housing (6) is provided with openings facing forward and downward respectively, and a tillage cutter (7) is arranged therein. A sand suction hole (61) is formed in the rear side wall of the housing (6), and the sand suction hole (61) is connected to a sand suction pipe (4). A submersible pump (10) is hoisted at the rear end of the floating boat (1) by an electric hoist (11). The inlet of the submersible pump (10) is communicated with the flexible sand suction pipe (4), and a sand discharge pipe is provided at the outlet of the submersible pump (10). It is characterized in that: On the left and right sides of the housing (6), two auxiliary walking mechanisms (8) are symmetrically provided. The auxiliary walking mechanism (8) includes a rotating arm (82) and a caster (85). The upper end of the rotating arm (82) is rotatably mounted on the side wall of the housing (6) through a rotating shaft (81). The caster (85) is arranged at the lower end of the rotating arm (82). On the left and right sides of the rotating arm (82) on the side wall of the housing (6), a fixed block (84) is respectively provided, and the two fixed blocks (84) are respectively connected to the fixed block (84) through a tension spring (83).

2. The underwater dredging device according to claim 1, wherein: The front end of the swing rod (3) extends out of the bow of the floating boat (1), and the rear end of the swing rod (3) is rotatably mounted on the floating boat (1). A winch (14) is provided at the rear end of the floating boat (1), and a rope winding bracket (2) is provided at the bow position of the floating boat. A pulley is provided at the top of the rope winding bracket (2). The rope of the winch (14) bypasses the pulley and is connected to the swing rod (3).

3. The underwater dredging device according to claim 1, characterized in that: A connecting bracket (5) is provided at the front end of the swing rod (3), and the housing (6) is connected to the connecting bracket (5) through a flipping mechanism (9); The flipping mechanism (9) includes a hinge shaft (93) and a telescopic rod (91). The hinge shaft (93) rotatably connects the housing (6) and the connecting bracket (5). The telescopic rod (91) is located beside the hinge shaft (93), one end is hinged to the connecting bracket (5), and the other end is hinged to the housing (6).

4. The bottom silt cleaning device according to claim 3, characterized in that: The telescopic rod (91) is a hydraulic telescopic rod.

5. The underwater dredging device according to claim 1, characterized in that: The tillage tool (7) is a rotary tillage knife or a spiral reamer, and a motor (71) for driving the tillage tool (7) to rotate is provided at the top of the housing (6).

6. The underwater dredging device according to claim 1, characterized in that: The lowest end of the caster (85) rim is lower than the lowest end of the tillage tool (7).

7. The underwater dredging device according to claim 1, characterized in that: A power distribution cabinet (12) and a hydraulic system (13) are provided at the rear end of the floating boat (1). The power distribution cabinet (12) supplies power to the electrical components on the floating boat (1), and the hydraulic system (13) supplies hydraulic oil to the hydraulic components on the floating boat (1).

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