A dredging shovel for hydraulic engineering

Abstract

The utility model relates to a cleaning shovel, especially to a silt cleaning shovel for water conservancy projects. The cleaning shovel comprises a shovel handle, a shovel head, a guide sleeve, a hinged seat, a rotating table, an extension strut, a fastening bolt and an adjusting assembly. One end of the shovel handle is connected with the shovel head. The guide sleeve is arranged outside the shovel handle. The hinged seat is installed at the bottom of the guide sleeve. The rotating table is connected with the bottom of the hinged seat. At least three extension struts are movably connected with the rotating table at equal intervals. The fastening bolt is threadedly connected with the middle part of the extension strut. The adjusting assembly is arranged between the bottom of the rotating table and the extension strut to adjust the opening angle and the opening distance of the extension strut. The guide sleeve, the hinged seat, the extension strut and the adjusting assembly are arranged to form a lever structure when the shovel handle lifts the silt, which significantly reduces the operation force and realizes efficient silt dredging.

Description

Technical Field

[0001] This utility model relates to a cleaning shovel, and more particularly to a shovel for cleaning silt in water conservancy projects. Background Technology

[0002] In the construction and maintenance of water conservancy projects, the unobstructed flow of hydraulic channels such as ditches, rivers, and drainage networks is crucial. During long-term operation, silt, organic residue, and other suspended solids carried by the water flow tend to deposit in low-velocity areas, forming a silt layer. This reduces the cross-sectional area of ​​the water passage and increases flow resistance, potentially leading to poor drainage, flooding, or even structural damage. Therefore, regular silt removal is a key aspect of ensuring the safe operation and drainage efficiency of water conservancy projects. Currently, silt removal in small and medium-sized ditches and narrow waterways is still mainly done manually, using various types of shovels. These shovels are simple in structure, easy to carry, and suitable for precise silt removal in complex terrain conditions.

[0003] However, most existing dredging shovels are fixed long-handled structures. While they can achieve a certain depth of operation, they have significant shortcomings in actual use. Especially when cleaning deeper or harder silt, operators must rely entirely on their upper limbs to lift the shovel head, which is full of silt, from underwater. This is extremely labor-intensive, inefficient, and can easily lead to operator fatigue or even muscle injury after prolonged operation. Utility Model Content

[0004] In order to overcome the shortcomings of existing dredging shovels, which are mostly fixed long-handled structures, resulting in extremely high labor intensity and low efficiency when cleaning silt, this utility model provides a silt cleaning shovel for water conservancy projects.

[0005] The technical solution of this utility model is: a shovel for cleaning silt in water conservancy projects, including a shovel handle, a shovel head, a guide sleeve, a hinge seat, a rotating platform, telescopic support rods, fastening bolts, and an adjusting component. One end of the shovel handle is connected to the shovel head, the guide sleeve is sleeved on the outside of the shovel handle, the hinge seat is installed at the bottom of the guide sleeve, the rotating platform is connected to the bottom of the hinge seat, at least three telescopic support rods are movably connected at equal intervals around the rotating platform, the fastening bolts are threaded to the middle of the telescopic support rods, and the adjusting component is provided between the bottom of the rotating platform and the telescopic support rods for adjusting the unfolding angle and the opening distance of the telescopic support rods.

[0006] Furthermore, the adjustment assembly includes an adjustment screw, a moving block, a connecting rod, and a first handle. The adjustment screw is rotatably connected to the bottom of the rotary table, and the moving block is threadedly connected to the outer side of the adjustment screw. Each telescopic support rod is hinged to the moving block by the connecting rod, and the first handle is connected to the lower end of the adjustment screw.

[0007] Furthermore, each of the telescopic struts has a through groove at its upper part, and the lower end of the connecting rod is located in the through groove.

[0008] Furthermore, it also includes a support assembly, wherein the upper part of each of the two telescopic support rods is provided with the support assembly. The support assembly includes a swing rod, a nut, a threaded rod, and a second handle. The lower part of the through groove of the telescopic support rod is rotatably connected to the swing rod. The end of the swing rod away from the telescopic support rod is connected to the nut. The threaded rod is internally threaded to the nut. The second handle is connected to the threaded rod.

[0009] Furthermore, it also includes a rubber block, which is placed on top of the through groove where the swing rod is located.

[0010] Furthermore, it also includes force-bearing rods, with the force-bearing rods symmetrically connected to both ends of the shovel handle.

[0011] The beneficial effects are as follows: This utility model, through the design of the guide sleeve, hinge seat, telescopic support rod, and adjustment component, enables the shovel handle to form a lever structure when lifting silt, significantly reducing the operating force and achieving labor-saving and efficient silt removal; the telescopic support rod can be unfolded to form a stable support, and the threaded rod of the support component presses against the side wall of the ditch to prevent displacement during operation and improve stability; the overall structure can be folded and stored for easy carrying, and is equipped with upper and lower force-bearing rods to support hand-press and foot-operated operation, adapting to different working conditions and greatly improving the efficiency and convenience of silt removal operations. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention in its unused state.

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention in use.

[0014] Figure 3 This is a three-dimensional structural diagram of the adjustment component of this utility model.

[0015] Figure 4 This is a three-dimensional structural diagram of the support component of this utility model.

[0016] Parts and their numbers in the diagram: 1_Shovel handle, 2_Shovel head, 3_Guide sleeve, 4_Hinge seat, 5_Rotating table, 6_Telescopic support rod, 7_Fastening bolt, 8_Adjusting assembly, 81_Adjusting screw, 82_Moving block, 83_Connecting rod, 84_First handle, 9_Through groove, 10_Support assembly, 101_Swing rod, 102_Nut, 103_Threaded rod, 104_Second handle, 11_Rubber block, 12_Force bar. Detailed Implementation

[0017] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] A type of sludge removal shovel for water conservancy projects, such as Figures 1-4 As shown, the device includes a shovel handle 1, a shovel head 2, a guide sleeve 3, a hinge seat 4, a rotating platform 5, telescopic support rods 6, fastening bolts 7, and an adjusting assembly 8. The lower end of the shovel handle 1 is connected to the shovel head 2, which has through holes spaced apart to separate mud and water during the cleaning process and improve drainage efficiency. The guide sleeve 3 is fitted on the outside of the shovel handle 1, allowing the shovel handle 1 to rotate circumferentially and slide axially along the guide sleeve 3. The bottom of the guide sleeve 3 is fitted with a hinge seat 4, and the bottom of the hinge seat 4 is connected to the rotating platform 5, allowing the rotating platform 5 to rotate freely within a certain angle range. Three telescopic support rods 6 are movably connected to the rotating platform 5 at equal intervals around its circumference. Fastening bolts 7 are threadedly connected to the middle of the telescopic support rods 6, and the telescopic support rods 6 can be locked to the required length by tightening the fastening bolts 7. An adjusting assembly 8 is provided between the bottom of the rotating platform 5 and the telescopic support rods 6 to adjust the unfolding angle and spreading distance of the telescopic support rods 6, thereby achieving precise adjustment of the overall support posture and enhancing the stability and adaptability of the cleaning shovel in complex ditches.

[0019] Preferably, the adjustment assembly 8 includes an adjustment screw 81, a moving block 82, a connecting rod 83, and a first handle 84. The bottom of the rotary table 5 is rotatably connected to the adjustment screw 81 via a bearing. The adjustment screw 81 has a thread on its outer side and is threadedly connected to the moving block 82. Each telescopic support rod 6 is hinged to the moving block 82 via a connecting rod 83. Rotating the adjustment screw 81 can synchronously adjust the unfolding angle and spreading distance of all telescopic support rods 6 through the moving block 82 and the connecting rod 83 to adapt to different working environment requirements. The lower end of the adjustment screw 81 is connected to the first handle 84, which facilitates the operator to manually rotate the adjustment screw 81.

[0020] Furthermore, each telescopic strut 6 has a through groove 9 on its upper part, and the lower end of the connecting rod 83 is located in the through groove 9.

[0021] Furthermore, to enhance stability and control during operation, force-bearing rods 12 are symmetrically connected to both ends of the shovel handle 1, providing additional handholds for the user.

[0022] When using this silt-clearing shovel for ditch dredging, the rotating platform 5 unfolds outward around its hinge point through the rotation of the hinge seat 4. Then, rotating the first handle 84 rotates the connecting adjusting screw 81, which in turn drives the moving block 82 to move axially downward via a threaded transmission. The moving block 82 pushes the upper ends of each telescopic support rod 6 through multiple connecting rods 83, causing the telescopic support rods 6 to unfold outward around the connection point of the rotating platform 5. The three telescopic support rods 6 unfold simultaneously, forming a stable triangular support structure. Next, loosening the fastening bolts 7 on each telescopic support rod 6 and adjusting the telescopic length of the telescopic support rod 6 according to the actual depth of the ditch ensures that the lower end of the telescopic support rod 6 is firmly supported at the bottom of the ditch. Then, tightening the fastening bolts 7 locks the length. At this time, the shovel handle 1 forms a rigid support with the telescopic support rod 6 through the guide sleeve 3, ensuring stability during operation. During dredging, the operator applies force by gripping the force-bearing rod 12 at the upper end of the shovel handle 1, controlling the shovel head 2 to insert into the silt. Because the shovel handle 1 is connected to the hinge seat 4 via the guide sleeve 3, it allows the shovel handle 1 to swing up and down. The point of action of the shovel head 2 relative to the hinge seat 4 forms a lever structure. When the upper end of the shovel handle 1 is pressed down, the lever principle can be used to easily pry up the shovel head 2 and the silt, reducing labor intensity. The shovel handle 1 can slide and rotate around its axis within the guide sleeve 3, facilitating adjustment of the angle and depth of the shovel head 2's entry into the silt. After dredging, rotating the shovel handle 1 allows the shovel head 2 to flip, enabling convenient dumping of the silt. When the silt is dense and difficult to insert, the force-bearing rod 12 located below the shovel handle 1 can be used. The operator can step on the force-bearing rod 12 with their foot, using their body weight to increase downward pressure, assisting the shovel head 2 in cutting into the silt layer and improving work efficiency. When not in use, reverse the first handle 84, adjust the screw 81 to drive the moving block 82 to retract upwards, and pull the upper end of the telescopic support rod 6 towards the center through the connecting rod 83 to release the extended state; then loosen the fastening bolt 7, retract the telescopic support rod 6 to the shortest length, and fold the telescopic support rod 6 towards the handle 1 through the hinge seat 4 for easy carrying and storage.

[0023] Furthermore, the sludge cleaning shovel also includes a support assembly 10, wherein the upper part of each of the two telescopic support rods 6 is provided with a support assembly 10. Specifically, the support assembly 10 includes a swing rod 101, a nut 102, a threaded rod 103, and a second handle 104. The lower part of the through groove 9 of the telescopic support rod 6 is rotatably connected to the swing rod 101, so that the swing rod 101 can swing within a certain angle range to adapt to different ditch inclination angles. The end of the swing rod 101 away from the telescopic support rod 6 is connected to the nut 102, and the nut 102 is threadedly connected to the threaded rod 103. By rotating the threaded rod 103, its extension length can be adjusted, thereby adjusting the support width. The threaded rod 103 is connected to the second handle 104.

[0024] When the telescopic support rod 6 is supported inside the ditch, the swing rod 101 inside its through groove 9 can be rotated to extend out of the through groove 9 and rotate to a horizontal position. Then, the second handle 104 is rotated, causing the threaded rod 103 to rotate within the nut 102. Since the nut 102 is fixed to one end of the swing rod 101, the threaded rod 103 moves axially during rotation, gradually extending until both ends of the threaded rod 103 abut against the inner walls of the ditch. This structure effectively fixes the telescopic support rod 6 in the ditch, preventing slippage or wobbling of the telescopic support rod 6 when the shovel handle 1 is used for dredging, significantly improving operational stability.

[0025] Preferably, the support assembly 10 further includes a rubber block 11, which is provided on the top of the through groove 9 where the swing rod 101 is located. The rubber block 11 is made of elastic wear-resistant material and has good resilience and friction damping characteristics.

[0026] After the cleaning operation is completed, the second handle 104 is rotated in the opposite direction to retract the threaded rod 103, releasing its clamping effect on the ditch wall. Then, the swing rod 101 is rotated back to its original position and retracted into the through groove 9 of the telescopic support rod 6. At this time, the end of the swing rod 101 contacts the rubber block 11 at the top of the through groove 9. The rubber block 11 uses elastic friction to limit and fix the swing rod 101, preventing it from accidentally unfolding during transportation or folding, ensuring a compact, safe, and reliable structure.

[0027] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A shovel for cleaning silt in water conservancy projects, comprising a handle (1) and a shovel head (2), wherein one end of the handle (1) is connected to the shovel head (2), characterized in that, It also includes a guide sleeve (3), a hinge seat (4), a rotating platform (5), a telescopic strut (6), a fastening bolt (7), and an adjustment component (8). The guide sleeve (3) is fitted on the outside of the shovel handle (1). The hinge seat (4) is installed at the bottom of the guide sleeve (3). The rotating platform (5) is connected to the bottom of the hinge seat (4). At least three telescopic struts (6) are movably connected to the rotating platform (5) at equal intervals around its circumference. The fastening bolt (7) is threaded to the middle of the telescopic strut (6). The adjustment component (8) is provided between the bottom of the rotating platform (5) and the telescopic strut (6) for adjusting the unfolding angle and the spreading distance of the telescopic strut (6).

2. The shovel for cleaning silt in water conservancy projects according to claim 1, characterized in that, The adjustment assembly (8) includes an adjustment screw (81), a moving block (82), a connecting rod (83), and a first handle (84). The bottom of the rotary table (5) is rotatably connected to the adjustment screw (81). The moving block (82) is threadedly connected to the outside of the adjustment screw (81). Each telescopic support rod (6) is hinged to the moving block (82) by the connecting rod (83). The lower end of the adjustment screw (81) is connected to the first handle (84).

3. The shovel for cleaning silt in water conservancy projects according to claim 2, characterized in that, Each of the telescopic struts (6) has a through groove (9) on its upper part, and the lower end of the connecting rod (83) is located in the through groove (9).

4. The shovel for cleaning silt in water conservancy projects according to claim 3, characterized in that, It also includes a support assembly (10), wherein the support assembly (10) is provided on the upper part of both telescopic support rods (6). The support assembly (10) includes a swing rod (101), a nut (102), a threaded rod (103), and a second handle (104). The lower part of the through groove (9) of the telescopic support rod (6) is rotatably connected to the swing rod (101). The end of the swing rod (101) away from the telescopic support rod (6) is connected to the nut (102). The threaded rod (103) is threadedly connected to the nut (102). The second handle (104) is connected to the threaded rod (103).

5. A shovel for cleaning silt in water conservancy projects according to claim 4, characterized in that, It also includes a rubber block (11), which is placed on top of the through groove (9) where the swing rod (101) is located.

6. The shovel for cleaning silt in water conservancy projects according to claim 1, characterized in that, It also includes a force-bearing rod (12), and the two ends of the shovel handle (1) are symmetrically connected to the force-bearing rod (12).

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