A jetting dredging bit with a reamer head

Abstract

The application discloses a jet flow dredging drill bit with a reamer head and belongs to the technical field of dredging. Mainly comprises: a deflection pipe and a supporting rod fixedly installed at the middle part of the lower end of the deflection pipe, the output end of a driving motor is fixedly installed with a drill bit assembly, the lower end of the drill bit assembly is fixedly installed with an agitating assembly in a threaded mode, the T-shaped threaded pipe is screwed into the inner cavity of the water outlet screw groove in a threaded mode, one end of the installation thread is installed with a nozzle cover, when the stones in the sludge fall into the inner cavity of the nozzle cover, the stones will be first intercepted by the second filter screen arranged at the lower end of the nozzle cover, if the volume of the stones is small, the stones will continuously fall onto the upper end of the first filter screen and be continuously intercepted, when the high-pressure water is flushed out, the agglomerated stones will be flushed out to the outside of the nozzle cover by the strong water flow, the water outlet screw groove will not be blocked, the normal use of the water outlet screw groove is not affected, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of dredging technology, specifically to a jet-type dredging drill bit with a reamer head. Background Technology

[0002] Dredging refers to engineering activities that involve clearing, widening, or deepening water bodies such as rivers, lakes, and ports using human or mechanical means. Jet dredging drill bits, on the other hand, generate high-pressure jets (usually mud or water) through the drill bit nozzle. The impact force of the jets erodes and cuts through the bottom sediments, reducing the cutting resistance of the mechanical drill bit.

[0003] For example, patent CN118087643A discloses a dredging and environmental protection device. It includes a dredging vessel with a concave stern. A deflector pipe is rotatably connected to the concave stern. A hydraulic traction frame is connected to the stern of the dredging vessel, and a traction rope is connected between the hydraulic traction frame and the outer side of the deflector pipe. A rotatable drill bit is installed at the end of the deflector pipe. A mud pump is connected to the top of the dredging vessel. The dredging vessel is driven to the lake to be treated, the traction rope and hydraulic traction frame are released, allowing the deflector pipe to contact the lake bottom under gravity. The drill bit is then activated, breaking up the silt on the lake bottom. The mud pump then transfers suction to the absorption pipe, absorbing the broken silt and transferring it to the dredging vessel. As the dredging vessel moves, the silt on the lake bottom is gradually pumped out, increasing the lake bottom depth, clearing the silt, and completing the dredging project.

[0004] The dredging and environmental protection device in the aforementioned patent uses a drill bit to break up the silt on the bottom of the lake that needs to be treated. At the same time, multiple nozzles are installed on the side wall of the drill bit. High-pressure water is injected into the multiple nozzles and spray channels on the drill bit through a water supply component. During the rotation of the drill bit, high-pressure water can be sprayed from both sides of the drill block, so that the rocks on the lake bottom will not wear down the drill block. At the same time, the high-pressure water can also break up the lake bottom base layer, allowing the expansion and cleaning process to proceed normally. When the nozzles on the drill bit are not in use, the rocks in the lake sludge will enter and accumulate inside the nozzles, causing the nozzles to become blocked and affecting the water output.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a jet dredging drill bit with a reamer head, which solves the problem that when the nozzle on the drill bit is not in use, stones from lake sludge will enter and accumulate inside the nozzle, causing nozzle blockage and affecting water output.

[0007] The technical solution adopted by this application to solve its technical problem is: a jet-type dredging drill bit with a reamer head, including an offset tube and a support rod fixedly installed in the middle of the lower end of the offset tube. A drive motor is fixedly installed at the lower end of the support rod. A transmission ring is fixedly installed on one side of the lower end of the drive motor. A water outlet assembly is fixedly installed on one side of the upper end of the transmission ring. A drill bit assembly is fixedly installed at the output end of the drive motor. An agitator assembly is threadedly installed at the lower end of the drill bit assembly. The agitator assembly is set to assist the drill bit assembly in breaking up the silt. The drill bit assembly includes a drill bit body and water outlet grooves that are linearly and equally spaced around the outer wall of the drill bit body. A nozzle assembly is threadedly fixed in the inner cavity of the water outlet grooves, and high-pressure water is sprayed out through the water outlet grooves and the nozzle assembly for use.

[0008] Furthermore, the water outlet assembly includes a water pump and a water pipe connected to one end of the water pump.

[0009] Furthermore, the drill bit body includes a retaining ring and a threaded groove formed at the lower middle part of the retaining ring. Through grooves are formed at the upper and lower ends of the inner wall of the threaded groove, and a concave threaded insert is movably installed in the inner cavity of the through groove.

[0010] Furthermore, the nozzle assembly includes a T-shaped threaded tube and mounting threads formed around the upper end of the inner cavity of the T-shaped threaded tube, with a concave support block threadedly connected to the mounting threads.

[0011] Furthermore, a first filter screen is embedded in the upper end of the concave support block, a connecting ring is fixedly installed in the upper end of the concave support block, a second filter screen is embedded in the inner cavity of the connecting ring, and a nozzle cover is fixedly installed in the upper end of the T-shaped threaded tube.

[0012] Furthermore, the agitation assembly includes a reamer and a T-shaped threaded post fixedly mounted on the upper end of the reamer. Corresponding through slots are respectively opened at the upper and lower ends of one side of the outer wall of the T-shaped threaded post.

[0013] The beneficial effects of this application are as follows: The jet-type dredging drill bit with a reamer head provided by this application, through the combined use of a T-shaped threaded pipe, a water outlet groove, an installation thread, a nozzle cover, inside the nozzle cover, a second filter screen, and a first filter screen, enables the clumps of stones to be flushed out of the nozzle cover by the high-pressure water flow when the water outlet groove is flushed out by the high-pressure water flow, thereby not affecting the normal use of the water outlet groove.

[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the drill bit assembly of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of point A; Figure 4 For the present utility model Figure 2 Enlarged view of point B.

[0016] The following are the labeling elements in the figure: 1. Offset tube; 2. Support rod; 3. Drive motor; 4. Transmission ring; 5. Water outlet assembly; 51. Water pump; 52. Water pipe; 6. Drill bit assembly; 61. Drill bit body; 611. Fixing ring; 612. Threaded groove; 613. Through groove; 614. Concave threaded insert rod; 62. Water outlet screw groove; 63. Nozzle assembly; 631. T-shaped threaded tube; 632. Mounting thread; 633. Concave support block; 634. First filter screen; 635. Connecting ring; 636. Second filter screen; 637. Nozzle cover; 7. Agitator assembly; 71. Reamer; 72. T-shaped threaded post; 73. Corresponding through groove. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] like Figure 1As shown, a jet dredging drill bit with a reamer head includes an offset tube 1 and a support rod 2 fixedly installed at the lower middle part of the offset tube 1. A drive motor 3 is fixedly installed at the lower end of the support rod 2. A transmission ring 4 is fixedly installed on one side of the lower end of the drive motor 3. The upper end of the transmission ring 4 is connected to the offset tube 1 through a suction pipe, so that the offset tube 1 can suck up the dispersed silt in the lake through the transmission ring 4. One end of the offset tube 1 is connected to a mud pump (not shown in the figure). A water outlet component 5 is fixedly installed on one side of the upper end of the transmission ring 4. A drill bit assembly 6 is fixedly installed at the output end of the drive motor 3. An agitator component 7 is threadedly fixedly installed at the lower end of the drill bit assembly 6. The agitator component 7 is set to assist the drill bit assembly 6 in dispersing the silt.

[0020] like Figure 2 As shown, the water outlet assembly 5 includes a water suction pump 51 and a water pipe 52 connected to one end of the water suction pump 51. When working, the water suction pump 51 absorbs the surrounding lake water and transmits the water flow to the transfer ring 4 through the water pipe 52. Then, the water flow is transmitted to the annular groove through the transfer ring 4, so that the nozzle assembly 63 and the water outlet screw groove 62 can spray water flow.

[0021] like Figures 2-3 As shown, the drill bit assembly 6 includes a drill bit body 61 and water outlet grooves 62 that are linearly and equally spaced around the outer wall of the drill bit body 61. A nozzle assembly 63 is threadedly fixed in the inner cavity of the water outlet grooves 62. High-pressure water is sprayed out through the water outlet grooves 62 and the nozzle assembly 63 for use.

[0022] The nozzle assembly 63 includes a T-shaped threaded tube 631 and mounting threads 632 formed around the upper end of the inner cavity of the T-shaped threaded tube 631. The mounting threads 632 are threadedly connected to a concave support block 633.

[0023] A first filter screen 634 is embedded in the upper end of the concave support block 633, and a connecting ring 635 is fixedly installed in the upper end of the concave support block 633. A second filter screen 636 is embedded in the inner cavity of the connecting ring 635. A nozzle cover 637 is fixedly installed in the upper end of the T-shaped threaded pipe 631. The diameter of the mesh opening of the second filter screen 636 is larger than that of the first filter screen 634 to prevent stones from being injected into the inner cavity of the T-shaped threaded pipe 631 and causing blockage.

[0024] In this application, the T-shaped threaded pipe 631 is threaded into the inner cavity of the water outlet screw groove 62 for threaded installation. One end of the installation thread 632 is equipped with a nozzle cover 637. When stones in the sludge fall into the inner cavity of the nozzle cover 637, they will first be intercepted by the second filter screen 636 located at the lower end of the nozzle cover 637. If the stones are small, they will continue to fall to the upper end of the first filter screen 634 and be continuously intercepted. When high-pressure water is flushed out, the clumps of stones will be flushed out of the nozzle cover 637 by the strong water flow, and will not cause blockage of the water outlet screw groove 62, thus affecting the normal use of the water outlet screw groove 62. It is convenient to use. At the same time, when a lot of impurities accumulate on the upper end of the first filter screen 634 and the second filter screen 636, they can be replaced by disassembling the T-shaped threaded pipe 631.

[0025] like Figure 4 As shown, the drill bit body 61 includes a retaining ring 611 and a threaded groove 612 opened in the middle of the lower end of the retaining ring 611. Through grooves 613 are respectively opened at the upper and lower ends of the inner wall of the threaded groove 612. A concave threaded insert rod 614 is movably installed in the inner cavity of the through groove 613. The concave threaded insert rod 614 is installed in the inner cavity of the through groove 613 with the help of a nut.

[0026] The agitation assembly 7 includes a reamer 71 and a T-shaped threaded post 72 fixedly installed on the upper end of the reamer 71. The upper and lower ends of one side of the outer wall of the T-shaped threaded post 72 are respectively provided with corresponding through grooves 73. The T-shaped threaded post 72 is threadedly connected to the inner cavity of the threaded groove 612. After the T-shaped threaded post 72 and the threaded groove 612 are tightened and fixed, the through groove 613 and the corresponding through groove 73 are interconnected, thereby facilitating the insertion and fixing of the concave threaded rod 614.

[0027] In this application, by threading the T-shaped threaded post 72 into the inner cavity of the threaded groove 612, so that the through groove 613 and the corresponding through groove 73 are interconnected, the concave threaded rod 614 passes through the through groove 613 and the corresponding through groove 73 in sequence, and the end of the concave threaded rod 614 is threadedly fixed by the nut, so that the reamer 71 can be installed at the lower end of the fixing ring 611. When the drill bit body 61 drives the fixing ring 611 to rotate, the reamer 71 can be rotated at the same time, and the reamer 71 can be used to loosen the relatively hard soil.

[0028] In summary: Through the coordinated use of the T-shaped threaded pipe 631, the water outlet groove 62, the mounting thread 632, the nozzle cover 637, the inner part of the nozzle cover 637, the second filter screen 636, and the first filter screen 634, when high-pressure water is flushed out of the water outlet groove 62, the clumps of stones will be flushed out of the nozzle cover 637 by the high-pressure water flow, thus not affecting the normal use of the water outlet groove 62. Through the coordinated use of the T-shaped threaded post 72, the threaded groove 612, the through groove 613, the corresponding through groove 73, and the reamer 71, when the drill bit body 61 drives the fixed ring 611 to rotate, the reamer 71 can be driven to rotate at the same time, and the reamer 71 can be used to loosen the relatively hard soil.

[0029] The structure and working principle of the offset pipe 1, support rod 2, drive motor 3, transmission ring 4, and water outlet assembly 5 are the same as those of the offset pipe, drill bit water pump, curved series pipe, transmission pipe, transmission ring, absorption pipe, drive motor, drill bar, drill block, nozzle, and spray groove in publication number CN118087643A, and will not be described again here.

[0030] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A jet-type dredging drill bit with a reamer head, comprising an offset tube (1) and a support rod (2) fixedly installed at the middle of the lower end of the offset tube (1), wherein a drive motor (3) is fixedly installed at the lower end of the support rod (2), a transmission ring (4) is fixedly installed on one side of the lower end of the drive motor (3), and a water outlet assembly (5) is fixedly installed on one side of the upper end of the transmission ring (4), characterized in that: The output end of the drive motor (3) is fixedly installed with a drill bit assembly (6), and the lower end of the drill bit assembly (6) is fixedly installed with a stirring assembly (7). The stirring assembly (7) is set to assist the drill bit assembly (6) in breaking up the silt. The drill bit assembly (6) includes a drill bit body (61) and water outlet grooves (62) that are linearly and equally spaced around the outer wall of the drill bit body (61). A nozzle assembly (63) is threadedly fixed in the inner cavity of the water outlet groove (62). High-pressure water is sprayed out through the water outlet groove (62) and the nozzle assembly (63) for use.

2. The jet dredging drill bit with a reamer head according to claim 1, characterized in that: The water outlet assembly (5) includes a water pump (51) and a water pipe (52) connected to one end of the water pump (51).

3. A jet-type dredging drill bit with a reamer head according to claim 1, characterized in that: The drill bit body (61) includes a fixed ring (611) and a threaded groove (612) opened in the middle of the lower end of the fixed ring (611). The upper and lower ends of the inner wall of the threaded groove (612) are respectively provided with through grooves (613). A concave threaded insert rod (614) is movably installed in the inner cavity of the through groove (613).

4. A jet-type dredging drill bit with a reamer head according to claim 1, characterized in that: The nozzle assembly (63) includes a T-shaped threaded tube (631) and mounting threads (632) formed around the upper end of the inner cavity of the T-shaped threaded tube (631). The mounting threads (632) are threadedly connected to a concave support block (633).

5. A jet-type dredging drill bit with a reamer head according to claim 4, characterized in that: The upper end of the concave support block (633) is fitted with a first filter screen (634), the upper end of the concave support block (633) is fixedly installed with a connecting ring (635), the inner cavity of the connecting ring (635) is fitted with a second filter screen (636), and the upper end of the T-shaped threaded tube (631) is fixedly installed with a nozzle cover (637).

6. A jet-type dredging drill bit with a reamer head according to claim 1, characterized in that: The agitation assembly (7) includes a reamer (71) and a T-shaped threaded post (72) fixedly installed on the upper end of the reamer (71). Corresponding through slots (73) are respectively opened at the upper and lower ends of one side of the outer wall of the T-shaped threaded post (72).

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