A culvert dredging device and method

Abstract

The present invention relates to a culvert dredging device and method, comprising two winches located beside different working wells and a dredging bucket located in the culvert, first lifting ears are symmetrically arranged on both sides of the bucket mouth of the dredging bucket, and a second lifting ear is arranged on the outer wall of the bottom of the dredging bucket, the first lifting ear is connected to a winch through a traction rope, the second lifting ear is connected to another winch through a traction rope, the traction rope connected to the first lifting ear comprises a main traction rope and an auxiliary traction rope, the two ends of the auxiliary traction rope are respectively connected to two symmetrical first lifting ears, and the middle position of the auxiliary traction rope forms a rope loop through a rope clip, the rope loop is connected to the main traction rope through a spring clip, and a plurality of drainage holes are arranged at the bottom of the dredging bucket. The culvert dredging device of the present invention is simple to manufacture, has strong applicability, and has high dredging efficiency. During the dredging operation, it is not necessary for operators to work in the culvert for a long time, thereby reducing the safety hazards of the dredging operation.

Description

Technical Field

[0001] The present invention relates to the field of dredging equipment, and in particular to a culvert dredging device and method. Background Art

[0002] In the early stage of urban construction, in order to ensure the discharge of wastewater, channels and box culverts were dug during the road construction process. With the development and transformation of the city, the original river ditches were covered with covers and turned into culverts. However, due to the lack of early supervision, people in the surrounding living and industrial areas still discharged domestic sewage, industrial wastewater and other garbage into the culverts nearby. There are many types of solid waste accumulated in the culvert, including construction waste such as bricks, sand and gravel, cement consolidation, and domestic waste such as plastic bags and plastic bottles. Therefore, conventional dredging equipment cannot complete the dredging operation well, and most of them use manual and mechanical dredging methods.

[0003] Because the culvert is covered all year round and rarely cleaned, and the culvert structure is aging and seriously blocked, the culvert is filled with toxic and harmful gases. If it is cleaned rashly, the hidden dangers are very great. Therefore, in order to ensure the safety of the workers, the workers are rotated every half an hour, and before the manual dredging operation, gas detection, ventilation, and personnel wearing protective clothing are required. It can be seen that it is time-consuming, labor-intensive, and inefficient. During the operation, harmful gases may rise due to the disturbance of silt, causing safety accidents. Especially in recent years, with the advancement of urban transformation, the culvert dredging construction has been carried out, and casualties have often occurred, causing irreparable losses and adverse social impacts.

[0004] Although the existing dredging device also uses two winches to pull the dredging bucket back and forth to perform dredging operations, the dredging bucket has the problems of being not durable and inefficient. In addition, due to the uneven distribution of silt, the dredging bucket is easy to flip over during the dredging process, causing the bucket mouth to tilt, affecting the dredging effect.

[0005] The above problems are worth solving. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a culvert dredging device and method.

[0007] The technical solution of the present invention is as follows:

[0008] A culvert dredging device comprises two winches located beside the wellheads of different working wells and a dredging bucket located in the culvert, wherein the first lifting ears are symmetrically provided on both sides of the bucket mouth of the dredging bucket, and a second lifting ear is provided on the outer wall of the bottom of the dredging bucket, the first lifting ear is connected to a winch through a traction rope, and the second lifting ear is connected to another winch through a traction rope, the traction rope connected to the first lifting ear comprises a main traction rope and an auxiliary traction rope, the two ends of the auxiliary traction rope are respectively connected to two symmetrical first lifting ears, and a rope loop is formed in the middle position of the auxiliary traction rope through a rope clip, and the rope loop is connected to the main traction rope through a spring clip, and a plurality of drainage holes are provided at the bottom of the dredging bucket.

[0009] Preferably, three rows of drainage holes are provided at the bottom of the dredging bucket.

[0010] Preferably, the dredging bucket has a width of 1.2 m, a height of 0.5 m and a depth of 0.5 m.

[0011] Preferably, the dredging bucket is formed by pressing a 3 mm steel plate.

[0012] Preferably, the main traction rope is a 6 mm thick steel wire rope, and the auxiliary traction rope is a 4 mm thick steel wire rope.

[0013] Preferably, the secondary traction rope is 5m long.

[0014] The present invention according to the above scheme is characterized in that two pairs of first lifting ears are symmetrically provided on both sides of the bucket mouth of the dredging bucket, and the two first lifting ears on the same side are located at two three-point points of the side.

[0015] The present invention according to the above scheme is characterized in that two second lifting ears are evenly arranged on the vertical center axis of the outer surface of the bottom of the dredging bucket.

[0016] Preferably, the thickness of the first hanging ear and the second hanging ear are both 6 mm.

[0017] The present invention according to the above scheme is characterized in that the four sides of the bucket mouth of the dredging bucket are provided with reinforcing flat irons, and the thickness of the reinforcing flat irons is 5 mm.

[0018] The present invention according to the above scheme is characterized in that it also includes an adjustable steering mechanism, which is fixed on the wall of the working well, and the traction rope is connected to the dredging bucket after passing around the fixed pulley of the adjustable steering mechanism.

[0019] Furthermore, the adjustable steering mechanism includes a telescopic sleeve group and two fixed pulleys respectively located at both ends of the telescopic sleeve group, wherein the fixed pulley close to the winch protrudes from the top edge of the telescopic sleeve group, and the fixed pulley located in the culvert is away from the end of the telescopic sleeve group.

[0020] Preferably, the fixed pulley located in the culvert is 10 cm away from the horizontal ground of the culvert.

[0021] Furthermore, the telescopic sleeve group includes an outer tube and an inner tube sleeved into the outer tube, and a plurality of evenly arranged pin holes are provided on the tube walls of the outer tube and the inner tube.

[0022] Preferably, the interval between two adjacent pin holes is 20 cm.

[0023] Preferably, the lengths of the outer tube and the inner tube are both 3 m.

[0024] The present invention according to the above scheme is characterized in that the culvert dredging device also includes a hoisting machine, and the hoisting machine is located between the two working pits.

[0025] Furthermore, the culvert desilting device also includes a ventilation mechanism, a ventilation pipe of the ventilation mechanism is connected to a blower, and the ventilation pipe enters the culvert channel through a ventilation shaft.

[0026] On the other hand, a method for dredging a culvert is applicable to the culvert dredging device in the above scheme, and is characterized by comprising the following steps:

[0027] Step 1: Preliminary preparation work, including the setting of working shaft, ventilation shaft, blower, winch, adjustable steering mechanism and hoist;

[0028] Step 2: Ventilate the culvert using a blower;

[0029] Step 3: The main traction ropes on the winches of the two working pits are all bypassed by the adjustable steering mechanism, and the main traction rope of one of them is passed through the culvert through the threader and led to the other working pit;

[0030] Step 4: The two ends of the auxiliary traction rope are connected to the first lifting lug of the dredging bucket respectively, and a rope loop is formed in the middle of the auxiliary traction rope through a rope clamp, and the main traction rope of one winch is connected to the rope loop of the auxiliary traction rope through a spring clamp; the second lifting lug of the dredging bucket is connected to the main traction rope of another winch;

[0031] Step 5: Place the dredging bucket into the culvert;

[0032] Step 6: The winch is operated to carry out dredging operations;

[0033] Step 7: When the silt removal bucket is full of sediment, the hoist lifts the silt removal bucket and dumps it on the ground;

[0034] Step 8: Repeat steps 5 to 7 until the dredging operation is completed.

[0035] The present invention according to the above scheme has the following beneficial effects:

[0036] The present invention utilizes a self-made dredging bucket, and strengthens the connection structure of the traction rope to the dredging bucket through the connection mode of combining the main and auxiliary traction ropes, so as to ensure that the dredging bucket does not turn over during the dredging process, and the bucket mouth is stable, thereby increasing the dredging capacity;

[0037] The invention has the advantages of simple structure, convenient operation, strong applicability and high dredging efficiency. It only needs to control the winch on the ground to complete the dredging of the silt in the culvert, without the need for intelligent equipment and low cost.

[0038] The present invention does not require operators to enter the culvert during the dredging operation, thereby reducing the potential safety hazards of the dredging operation.

[0039] Furthermore, the adjustable steering mechanism adopted in the present invention can not only change the traction direction, but also meet the needs of culverts of different depths. The mouth of the dredging bucket is provided with a reinforced flat iron. During the dredging process, the dredging bucket is not easily deformed and can effectively complete the dredging work. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the structure of the present invention.

[0041] Figure 2 for Figure 1 Magnified view of area A in the middle.

[0042] Figure 3 It is a structural schematic diagram of the silt removal bucket in the present invention.

[0043] Figure 4 Schematic diagram of the connection structure between the main traction rope and the auxiliary traction rope.

[0044] Figure 5 This is the main view of the dredging bucket.

[0045] Figure 6 It is a side view of the dredging bucket.

[0046] Figure 7 This is a top view of the dredging bucket.

[0047] Figure 8 It is a structural schematic diagram of the adjustable steering mechanism of the present invention.

[0048] In the figure, 1, silt removal bucket; 11, first lifting lug; 12, second lifting lug; 13, drainage hole; 14, reinforcement flat iron;

[0049] 21. Main traction rope; 22. Auxiliary traction rope; 23. Rope clip; 24. Spring clip;

[0050] 31. Winch; 32. Blower; 321. Ventilation pipe; 33. Hoisting machine; 34. Switch box; 35. Distribution box; 36. Generator;

[0051] 4. Adjustable steering mechanism; 41. Outer tube; 42. Inner tube; 43. Fixed pulley; 44. Latch hole;

[0052] 5. Working shaft; 6. Ventilation shaft. DETAILED DESCRIPTION

[0053] In order to better understand the purpose, technical solution and technical effect of the present invention, the present invention is further explained below in conjunction with the accompanying drawings and embodiments. At the same time, it is stated that the embodiments described below are only used to explain the present invention and are not used to limit the present invention.

[0054] like Figure 1 to Figure 4 As shown, a culvert dredging device comprises two winches 31 located beside the wellheads of different working wells 5 and a dredging bucket 1 located in the culvert, the two winches 31 are respectively connected to the front and rear sides of the dredging bucket 1 through a traction rope, first lifting ears 11 are symmetrically provided on both sides of the bucket mouth of the dredging bucket 1, and a second lifting ear 12 is provided on the outer wall of the bottom of the dredging bucket 1, the first lifting ear 11 is connected to a winch through a traction rope, and the second lifting ear 12 is connected to another winch through a traction rope, and the traction rope connected to the first lifting ear 11 comprises a main traction rope 21 and an auxiliary traction rope 22, the two ends of the auxiliary traction rope 22 are respectively connected to two symmetrical first lifting ears 11, a rope loop is formed in the middle position of the auxiliary traction rope 22 through a rope clip 23, and the rope loop is connected to the main traction rope 21 through a spring clip 24.

[0055] The culvert desilting device of the present invention further comprises an adjustable steering mechanism 4 , which is fixed on the wall of the working well 5 , and the traction rope passes around the fixed pulley 43 of the adjustable steering mechanism 4 and then is connected to the desilting bucket 1 .

[0056] like Figure 4 As shown, the auxiliary traction rope 22 in front of the bucket mouth of the dredging bucket 1 is folded in half and clamped with a rope clamp 23, so that the auxiliary traction rope 22 forms a rope loop in the middle position, and the two ends of the auxiliary traction rope 22 are respectively connected to two symmetrical first lifting ears 11, so that the main traction rope 21 can apply the same pulling force to the first lifting ears on both sides of the bucket mouth of the dredging bucket 1 when pulling, so as to avoid the bucket mouth of the dredging bucket from rotating due to uneven force, thereby affecting the dredging operation. Therefore, the present invention strengthens the connection structure of the traction rope to the dredging bucket, ensures that the dredging bucket does not flip over during the dredging process, and the bucket mouth is stable, thereby increasing the dredging capacity.

[0057] The end of the auxiliary traction rope 22 is connected to the first lifting lug 11 through a shackle, which is convenient for disassembly and assembly and is a commonly used construction engineering connector, which will not be described in detail here. The traction rope connected to the second lifting lug 12 only needs the main traction rope, and is connected to one of the second lifting lugs 12 through the spring clip 24.

[0058] like Figure 5 to Figure 7 As shown, in this embodiment, a plurality of drainage holes 13 are provided at the bottom of the silt cleaning bucket 1. Preferably, three rows of drainage holes are provided at the bottom of the silt cleaning bucket 1. The size of the drainage holes 13 is set according to actual needs. If the silt particles in the culvert are small, small drainage holes are used. This is not limited here. When the silt cleaning bucket removes the silt, the water in the silt can pass through the drainage holes, and the silt cleaning bucket can load more solid silt.

[0059] In this embodiment, two pairs of first lifting ears 11 are symmetrically provided on both sides of the bucket mouth of the dredging bucket 1, and the two first lifting ears 11 on the same side are located at two three-point points of the side. It can be seen that on the same side of the dredging bucket 1, the first lifting ears 11 are evenly arranged. In the specific dredging operation process, a pair of first lifting ears with different heights can be selected or multiple pairs of first lifting ears can be connected. When the silt at the bottom of the culvert is harder, the lower pair of first lifting ears is selected to increase the traction force on the bottom of the dredging bucket; when it is found that the traction is difficult during the traction of the dredging bucket, multiple pairs of first lifting ears can be connected at the same time to share the tension of the auxiliary traction rope and avoid the auxiliary traction rope from being disconnected.

[0060] In other embodiments, more than two pairs of first lifting ears can be set on both sides of the bucket mouth of the dredging bucket, and two second lifting ears 12 are evenly arranged on the vertical center axis of the outer surface of the bottom of the dredging bucket 1 to meet the traction requirements at different heights.

[0061] In this embodiment, the main traction rope 21 is a 6mm thick steel wire rope, and the auxiliary traction rope 22 is a 4mm thick steel wire rope. The use of a steel wire rope with sufficient thickness can ensure that the steel wire rope is not easy to break during the dredging operation. Since the steel wire rope is not easy to knot, it is necessary to use a rope clamp 23 to clamp the end of each steel wire rope to form a rope loop. This operation is a conventional steel wire rope knotting technique and will not be described here.

[0062] In this embodiment, the auxiliary traction rope 22 is 5 meters long. The length of the auxiliary traction rope 22 is determined according to the size of the dredging bucket 1 to ensure that when the dredging bucket is pulled, the angle between the two sections of the auxiliary traction rope 22 is between 30° and 120°.

[0063] The bottom of the dredging bucket 1 is an arc surface, the mouth of the dredging bucket is a square mouth, and reinforced flat irons are arranged on the four sides of the mouth, and the thickness of the reinforced flat irons is 5 mm.

[0064] Preferably, the thickness of the first hanging ear and the second hanging ear are both 6 mm.

[0065] Preferably, the dredging bucket has a width of 1.2 m, a height of 0.5 m, and a depth of 0.5 m.

[0066] Preferably, the dredging bucket is formed by pressing a 3 mm steel plate.

[0067] like Figure 8 As shown, the adjustable steering mechanism 4 of the present invention includes a telescopic sleeve group and two fixed pulleys 43 respectively located at the two ends of the telescopic sleeve group, wherein the fixed pulley 43 close to the winch 31 protrudes from the top edge of the telescopic sleeve group, and the fixed pulley 43 located in the culvert is far away from the end of the telescopic sleeve group. The upper fixed pulley 43 protrudes from the top edge of the telescopic sleeve group, and when the traction rope passes around the fixed pulley 43 here, it can avoid rubbing against the square tube of the telescopic sleeve group; the lower fixed pulley 43 is far away from the end of the telescopic sleeve group, which can avoid the fixed pulley 43 from contacting the horizontal ground of the culvert, thereby realizing the smooth movement of the traction rope on the two fixed pulleys 43. Preferably, the fixed pulley 43 located in the culvert is 10 cm away from the horizontal ground of the culvert.

[0068] Furthermore, the telescopic sleeve group includes an outer tube 41 and an inner tube 42 inserted into the outer tube. The inner tube 42 can be telescopically moved in the outer tube 41, so as to adjust the length of the telescopic sleeve group. The tube walls of the outer tube 41 and the inner tube 42 are provided with a plurality of evenly arranged latch holes 44. When the telescopic sleeve group is adjusted to a suitable length, that is, to meet the depth requirement of the culvert, a latch is inserted into the latch hole 44 to fix the relative position relationship between the outer tube 41 and the inner tube 42. Therefore, the adjustable steering mechanism adopted by the present invention can not only change the traction direction, but also meet the requirements of culverts of different depths.

[0069] In this embodiment, the interval between two adjacent pin holes is 20 cm, and the lengths of the outer tube 41 and the inner tube 42 are both 3 m.

[0070] like Figure 1 As shown, in the present invention, the culvert desilting device further comprises a hoist 33, which is located between the two working wells 5. When the desilting bucket 1 pulls the silt to the working well 5, the hook of the hoist 33 pulls the desilting bucket 1 filled with silt from the working well, and the operator dumps the clean desilting bucket and puts it back to continue cleaning the residual silt in the culvert.

[0071] Furthermore, the culvert desilting device also includes a ventilation mechanism, the ventilation pipe 321 of the ventilation mechanism is connected to the blower 32, and the ventilation pipe 321 enters the culvert passage through the ventilation shaft 6. The winch 31 and the blower 32 are both equipped with a switch box 34, a distribution box 35 and a generator 36 for providing working power and switch control. Before the desilting operation, the culvert generally needs to be ventilated. The culvert has not been cleaned for many years, and the situation of harmful gases inside is not clear. The operator may be harmed by harmful gases when performing the desilting operation at the beginning.

[0072] The present invention also provides a method for desilting a culvert, which is applicable to the desilting device for the culvert in the above scheme, and is characterized by comprising the following steps:

[0073] Step 1: Preliminary preparation work, including the setting of working shaft, ventilation shaft, blower, winch, adjustable steering mechanism and hoist;

[0074] Specifically, two working shafts and a ventilation shaft located next to them are dug on the ground, a winch is set next to each working shaft, a hoist is set between the two working shafts, and a blower is set next to the ventilation shaft;

[0075] An adjustable steering mechanism is fixed on the walls of the two working wells, and one end of the fixed pulley protruding from the edge of the telescopic sleeve group faces upward, and the other end faces downward.

[0076] Step 2: Ventilate the culvert using a blower;

[0077] Specifically, the ventilation pipe is connected to the blower and extended into the culvert. The blower is turned on to ventilate the culvert, and personnel disperse. The blower is then turned off after the ventilation operation has been carried out for 15 to 30 minutes.

[0078] Step 3: The main traction ropes on the winches of the two working pits are all bypassed by the adjustable steering mechanism, and the main traction rope of one of them is passed through the culvert through the threader and led to the other working pit;

[0079] Step 4: The two ends of the auxiliary traction rope are connected to the first lifting lug of the dredging bucket respectively, and a rope loop is formed in the middle of the auxiliary traction rope through a rope clamp, and the main traction rope of one winch is connected to the rope loop of the auxiliary traction rope through a spring clamp; the second lifting lug of the dredging bucket is connected to the main traction rope of another winch;

[0080] Step 5: Place the dredging bucket into the culvert and use its own weight to sink it into the silt of the culvert;

[0081] Step 6: The winch is operated to carry out dredging operations;

[0082] Specifically, using a walkie-talkie, the party releasing the line is first instructed to loosen the traction rope, and then the party collecting the line is instructed to tighten the traction rope and drag the dredging bucket, so that the dredging bucket moves and removes the silt.

[0083] Step 7: When the silt removal bucket is full of sediment, the hoist lifts the silt removal bucket and dumps it on the ground;

[0084] Step 8: Repeat steps 5 to 7 until the dredging operation is completed.

[0085] In summary, the culvert dredging device of the present invention is simple to manufacture, has strong applicability, high dredging efficiency, and can clear more than 95% of the silt in the culvert; the present invention adopts winch control, does not require intelligent equipment, and has low cost; during the operation, there is no need for operators to work in the culvert for a long time, reducing the safety hazards of dredging operations.

[0086] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A culvert desilting device, comprising two winches located beside different working wells and a desilting bucket located in the culvert, It is characterized in that The first lifting ears are symmetrically arranged on both sides of the bucket mouth of the dredging bucket, and the outer wall of the bottom of the dredging bucket is provided with a second lifting ear, the first lifting ear is connected to a winch through a traction rope, and the second lifting ear is connected to another winch through a traction rope, and the traction rope connected to the first lifting ear includes a main traction rope and an auxiliary traction rope, and the two ends of the auxiliary traction rope are respectively connected to two symmetrical first lifting ears, and the middle position of the auxiliary traction rope after being folded in half forms a rope loop through a rope clip, and the rope loop is connected to the main traction rope through a spring clip, and a plurality of drainage holes are arranged at the bottom of the dredging bucket; Two pairs of first lifting ears are symmetrically arranged on both sides of the dredging bucket, and the two first lifting ears on the same side are located at two three-point points of the side; Two second lifting ears are evenly arranged on the vertical center axis of the outer surface of the bottom of the dredging bucket; Reinforced flat irons are arranged on the four sides of the bucket mouth of the dredging bucket.

2. The culvert desilting device according to claim 1, It is characterized in that The thickness of the reinforcing flat iron is 5 mm.

3. The culvert desilting device according to claim 1, It is characterized in that It also includes an adjustable steering mechanism, which is fixed on the wall of the working well. The traction rope is connected to the dredging bucket after passing around the fixed pulley of the adjustable steering mechanism.

4. The culvert desilting device according to claim 3, It is characterized in that The adjustable steering mechanism includes a telescopic sleeve group and two fixed pulleys located at both ends of the telescopic sleeve group, wherein the fixed pulley close to the winch protrudes from the top edge of the telescopic sleeve group, and the fixed pulley located in the culvert is away from the end of the telescopic sleeve group.

5. The culvert desilting device according to claim 4, It is characterized in that The telescopic sleeve group comprises an outer tube and an inner tube sleeved into the outer tube, and a plurality of evenly arranged pin holes are arranged on the tube walls of the outer tube and the inner tube.

6. The culvert desilting device according to claim 1, It is characterized in that The culvert desilting device also includes a hoisting machine, and the hoisting machine is located between the two working wells.

7. The culvert desilting device according to claim 6, It is characterized in that The culvert desilting device also includes a ventilation mechanism, a ventilation pipe of the ventilation mechanism is connected to a blower, and the ventilation pipe extends into the culvert channel through a ventilation shaft.

8. A method for desilting a culvert, applicable to the culvert desilting device according to any one of claims 1 to 7, It is characterized in that The following steps are involved: Step 1: Preliminary preparation work, including the setting of working shaft, ventilation shaft, blower, winch, adjustable steering mechanism and hoist; Step 2: Ventilate the culvert using a blower; Step 3: The main traction ropes on the winches of the two working pits are all bypassed by the adjustable steering mechanism, and the main traction rope of one of them is passed through the culvert through the threader and led to the other working pit; Step 4: The two ends of the auxiliary traction rope are connected to the first lifting lug of the dredging bucket respectively, and a rope loop is formed in the middle of the auxiliary traction rope through a rope clamp, and the main traction rope of one winch is connected to the rope loop of the auxiliary traction rope through a spring clamp; the second lifting lug of the dredging bucket is connected to the main traction rope of another winch; Step 5: Place the dredging bucket into the culvert; Step 6: The winch is operated to carry out dredging operations; Step 7: When the silt removal bucket is full of sediment, the hoist lifts the silt removal bucket and dumps it on the ground; Step 8: Repeat steps 5 to 7 until the dredging operation is completed.

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