A telescopic stirring nozzle

Abstract

The utility model discloses a telescopic stirring spray head, comprising a core tube: blades are welded on the surface of the core tube, a drill bit is welded on the bottom of the core tube, four telescopic head shells are distributed in an annular manner on the surface of the core tube, a grouting pipe is fixedly connected to the inner cavity of the core tube, a grouting port is provided in the inner cavity of the core tube, the grouting pipe is connected with the inner cavity of the telescopic head shell through the grouting port, a telescopic grouting head is slidably connected to the inner cavity of the telescopic head shell, and a grouting pipe is provided above the grouting pipe. The utility model drills and loosens the ground through the coordinated use of the core tube, blades and drill bit, and at the same time, the grouting pipe and the grouting pipe are quickly docked and connected through the setting of the docking assembly. Finally, in the drilling process, the grouting pipe, the telescopic head shell and the telescopic grouting head are used in coordination to perform stirring and spraying, so as to achieve the purposes of quick docking, simple construction and strong stirring of rotary spraying.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling grouting, in particular to a telescopic stirring nozzle. Background Art

[0002] Drilling and grouting is a geological engineering technology used to reinforce the foundation or prevent groundwater leakage. Its basic principle is to inject a specific slurry through a borehole in the stratum to fill and consolidate the voids and cracks in the stratum, thereby improving the bearing capacity of the foundation or preventing water penetration. In geological exploration and engineering construction, drilling and grouting technology is widely used in foundation reinforcement, tunnel construction, mining development and other fields.

[0003] During the drilling and grouting process, most drilling and grouting equipment fails to achieve the integration of grouting and mixing. When performing geological reinforcement, drilling equipment and mixing equipment need to be used separately, resulting in frequent equipment switching, cumbersome construction steps, and low work efficiency. At the same time, the injection position of the rotary jet equipment is relatively fixed, and blockage may occur during the exploration process. In addition, the injection position is too close to the drill bit, and the slurry cannot be effectively delivered to the designated position. For this reason, it is necessary to provide a telescopic mixing nozzle with an integrated grouting and mixing design. There is no need to switch equipment. It can slide out after drilling to the specified depth, and perform rotary jetting and mixing operations. The construction is simple and the construction efficiency is improved. Utility Model Content

[0004] The purpose of the utility model is to provide a telescopic mixing nozzle, which adopts an integrated design of grouting and mixing, does not require equipment switching, and is equipped with a telescopic nozzle structure, which can slide out after drilling to a specified depth, and perform rotary spraying and mixing operations. The construction is simple, and the construction efficiency is improved, thereby solving the above-mentioned problems.

[0005] The utility model solves the above-mentioned technical problems with a technical solution as follows: a telescopic stirring nozzle, comprising a core tube: blades are welded on the surface of the core tube, a drill bit is welded on the bottom of the core tube, four telescopic head shells are annularly distributed on the surface of the core tube, a grouting pipe is fixedly connected to the inner cavity of the core tube, a grouting port is provided in the inner cavity of the core tube, the grouting pipe is communicated with the inner cavity of the telescopic head shell through the grouting port, a telescopic grouting head is slidably connected to the inner cavity of the telescopic head shell, a grouting pipe is provided above the grouting pipe, a docking assembly is provided between the grouting pipe and the grouting pipe, an end of the telescopic head shell away from the core tube is provided with an anti-detachment sleeve, two hexagon socket bolts are threadedly connected to the surface of the anti-detachment sleeve, one end of the hexagon socket bolt passes through the inner cavity of the anti-detachment sleeve and is threadedly connected to the telescopic head shell.

[0006] The utility model is used for a telescopic stirring nozzle as described above, further: the docking assembly includes a docking sleeve fixedly connected to the bottom of the slurry delivery pipe, the top of the grouting pipe is fixedly connected with a docking joint, the docking joint is inserted into the inner cavity of the docking sleeve, the bottoms on both sides of the docking sleeve are rotatably connected to limit clamps, and the limit clamps are clamped on the surface of the docking joint.

[0007] The utility model is used for a telescopic stirring nozzle as described above, further: the tops of both sides of the docking sleeve are fixedly connected with positioning seats, the limit clamps are engaged in the inner cavity of the positioning seats, a limit pin is penetrated through the front side of the positioning seat, and one end of the front side of the limit clamp is provided with a limit hole adapted to the limit pin.

[0008] The utility model is used for the telescopic stirring nozzle as described above, further: a drill rod is arranged above the core tube, a flange is arranged between the core tube and the drill rod, and the core tube and the drill rod are fixedly connected through the flange.

[0009] The utility model is used for the telescopic stirring nozzle as described above, further: a sealing gasket is embedded in the inner cavity of the docking sleeve, and the inner wall of the docking sleeve and the top end of the docking head are in close contact with the sealing gasket.

[0010] The utility model is used for the telescopic stirring nozzle as described above, further: the surface of the limit pin is inserted with an anti-dropping strip, and the surface of the limit pin is provided with an anti-dropping insertion hole matched with the anti-dropping strip.

[0011] The utility model is used for the telescopic stirring nozzle as described above, further comprising: an annular groove matched with the anti-dropping sleeve is provided on the surface of the telescopic head shell.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model drills and loosens the ground through the coordinated use of a core tube, a blade and a drill bit. At the same time, through the setting of a docking component, the grouting pipe and the grouting pipe are quickly docked and connected. Finally, during the drilling process, the grouting pipe, the telescopic head shell and the telescopic grouting head are used in coordination to stir and spray, thereby achieving the purposes of rapid docking, simple construction and strong rotary spraying stirring.

[0014] 2. The utility model sets a docking assembly, in which a limit clamp is set, which plays a role of limiting the docking joint, so that the docking joint can be stably clamped in the inner cavity of the docking sleeve, so that the grouting pipe and the slurry delivery pipe can quickly complete the docking operation. At the same time, with the coordinated use of the positioning seat and the limit pin, the limit pin plays a role of limiting locking, so that the limit clamp can be stably clamped on the surface of the docking joint, thereby improving the stability of the docking joint and the docking sleeve after docking.

[0015] 3. The utility model enhances the sealing performance between the butt joint and the butt joint by providing a sealing gasket, thereby improving the sealing effect after the butt joint and the butt joint are connected, and avoiding the generation of liquid seepage.

[0016] 4. The utility model uses the anti-dropout card strip and the anti-dropout socket in combination to limit and prevent the limit pin from dropping out, so that the limit pin can be stably inserted in the inner cavity of the limit plug hole and the positioning seat, avoiding the phenomenon that the limit pin is disengaged during operation, causing the docking sleeve and the docking head to be disengaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0018] Figure 1 This is a front cross-sectional view of an embodiment of the utility model;

[0019] Figure 2 This is an embodiment of the utility model Figure 1 A partial enlarged view of point A;

[0020] Figure 3 This is a front cross-sectional view of a grouting pipe and a docking assembly according to an embodiment of the utility model;

[0021] Figure 4 It is a three-dimensional exploded view of a grouting pipe and a docking assembly according to an embodiment of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Core tube, 2. Blade, 3. Drill bit, 4. Telescopic head shell, 5. Grouting pipe, 6. Grouting port, 7. Telescopic grouting head, 8. Grouting pipe, 9. Docking assembly, 91. Docking sleeve, 92. Docking joint, 93. Limiting clip, 94. Positioning seat, 95. Limiting pin, 96. Limiting socket, 10. Anti-dropping sleeve, 11. Hexagon socket bolt, 12. Drill rod, 13. Flange, 14. Sealing gasket, 15. Anti-dropping strip, 16. Anti-dropping socket. DETAILED DESCRIPTION

[0024] Hereinafter, embodiments of the telescopic stirring nozzle of the present invention will be described with reference to the accompanying drawings.

[0025] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are explanatory and exemplary, and should not be interpreted as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0026] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0027] Figure 1-4The telescopic stirring nozzle of an embodiment of the utility model is shown, comprising a core tube 1: a blade 2 is welded on the surface of the core tube 1, a drill rod 12 is arranged above the core tube 1, a flange 13 is arranged between the core tube 1 and the drill rod 12, the core tube 1 and the drill rod 12 are fixedly connected through the flange 13, a drill bit 3 is welded to the bottom of the core tube 1, four telescopic head shells 4 are distributed in an annular manner on the surface of the core tube 1, a grouting pipe 5 is fixedly connected to the inner cavity of the core tube 1, a grouting port 6 is arranged in the inner cavity of the core tube 1, the grouting pipe 5 is communicated with the inner cavity of the telescopic head shell 4 through the grouting port 6, a telescopic grouting head 7 is slidably connected to the inner cavity of the telescopic head shell 4, a grouting pipe 8 is arranged above the grouting pipe 5, a docking assembly 9 is arranged between the grouting pipe 5 and the grouting pipe 8, and the docking assembly 9 includes a fixed The butt joint 91 is fixedly connected to the bottom of the slurry delivery pipe 8, and the top of the grouting pipe 5 is fixedly connected with a butt joint 92, which is inserted into the inner cavity of the butt joint 91. The inner cavity of the butt joint 91 is embedded with a sealing gasket 14. The inner wall of the butt joint 91 and the top of the butt joint 92 are in close contact with the sealing gasket 14. The setting of the sealing gasket 14 enhances the sealing between the butt joint 91 and the butt joint 92, thereby improving the sealing effect after the butt joint 91 and the butt joint 92 are connected, and the generation of seepage is avoided. The bottoms on both sides of the butt joint 91 are rotatably connected to the limit clamps 93, and the limit clamps 93 are clamped on the surface of the butt joint 92. The tops on both sides of the butt joint 91 are fixedly connected with positioning seats 94, and the limit clamps 93 are clamped on the positioning seats 9 4, a limiting pin 95 is provided on the front side of the positioning seat 94, and a limiting plug hole 96 matched with the limiting pin 95 is provided at one end of the front side of the limiting clamp 93. Through the setting of the docking assembly 9, the setting of the limiting clamp 93 plays a role of limiting engagement for the docking joint 92, so that the docking joint 92 is stably engaged in the inner cavity of the docking sleeve 91, so that the grouting pipe 5 and the slurry delivery pipe 8 can quickly complete the docking operation. At the same time, under the coordinated use of the positioning seat 94 and the limiting pin 95, the limiting pin 95 plays a role of limiting locking, so that the limiting clamp 93 can be stably engaged on the surface of the docking joint 92, thereby improving the stability of the docking joint 92 and the docking sleeve 91 after docking. The surface of the limiting pin 95 is inserted with an anti-dropping card strip 15. The surface of the limit pin 95 is provided with an anti-dropout socket 16 that is compatible with the anti-dropout clip 15. Through the coordinated use of the anti-dropout clip 15 and the anti-dropout socket 16, the limit pin 95 is limited and anti-dropout, so that the limit pin 95 can be stably inserted in the inner cavity of the limit plug hole 96 and the positioning seat 94, avoiding the limit pin 95 from being separated during operation, causing the docking sleeve 91 and the docking head 92 to be separated. The end of the telescopic head shell 4 away from the core tube 1 is provided with an anti-dropout sleeve 10, and the surface of the telescopic head shell 4 is provided with an annular groove that is compatible with the anti-dropout sleeve 10. The surface of the anti-dropout sleeve 10 is threadedly connected with two hexagon socket bolts 11, and one end of the hexagon socket bolt 11 penetrates into the inner cavity of the anti-dropout sleeve 10 and is threadedly connected to the telescopic head shell 4.

[0028] Working principle: When the utility model is used, the user fixes the core tube 1 on the bottom of the drill pipe 12 through the flange 13, and the docking joint 92 is inserted into the inner cavity of the docking sleeve 91. Then, the user pushes the limit clamp 93 upward, so that the limit clamp 93 rotates upward and is engaged in the inner cavity of the positioning seat 94. At this time, the limit clamp 93 is stably engaged on the surface of the docking joint 92 to limit and lock the docking joint 92. Then, the user inserts the limit pin 95 into the inner cavity of the positioning seat 94 from the front side of the positioning seat 94, so that the limit pin 95 is simultaneously inserted into the inner cavity of the limit plug hole 96. Finally, the user inserts the anti-dropping card strip 15 into the inner cavity of the anti-dropping plug hole 16, and bends the anti-dropping card strip 15 to prevent the anti-dropping card strip 15 from slipping out of the inner cavity of the anti-dropping plug hole 16.

[0029] During use, the drill rod 12 drives the core tube 1 to rotate, and the core tube 1 drives the blades 2 and the drill bit 3 to rotate to drill the ground. At the same time, the grouting pipe 8 injects grout into the inner cavity of the grouting pipe 5. After drilling to a certain depth, the core tube 1, the blades 2 and the drill bit 3 continue to rotate. At the same time, the slurry enters the inner cavity of the telescopic head shell 4 from the grouting port 6 and is sprayed by the telescopic grouting head 7. Under the action of the slurry pressure, the telescopic grouting head 7 slides from the inner cavity of the telescopic head shell 4, causing the telescopic grouting head 7 to slide out and spray the slurry on the periphery, while stirring it under the rotation of the core tube 1.

[0030] When designing and constructing foundation pit water stopping, if the slope protection adopts a pile anchor system, the drilling tool of this application can be used to pile separately between two adjacent slope protection piles, and combined with the slope protection pile system to form a closed waterproof partition wall. Due to the setting of the telescopic grouting head on the drill bit, it is in a retracted state during drilling, and extends to form a stirring head during rotary spraying. Stirring is strengthened while spraying, and the pile diameter and pile quality are greatly improved under the same drill diameter. The present application provides an economical and practical, simple construction, low energy consumption, no pollution, good water stopping effect, and a device for forming underground watertight walls under various geological conditions. In summary: the telescopic stirring nozzle, through the coordinated use of the core tube 1, the blade 2 and the drill bit 3, drills and loosens the ground, and at the same time, through the setting of the docking component 9, the grouting pipe 5 and the grouting pipe 8 are quickly docked and connected. Finally, during the drilling process, the grouting pipe 5, the telescopic head shell 4 and the telescopic grouting head 7 are used to stir and spray, so as to achieve the purpose of quick docking, simple construction and strong rotary spraying stirring.

[0031] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the utility model to achieve the purpose of the utility model.

Claims

1. A telescopic stirring nozzle, characterized in that: The invention comprises a core tube (1): a blade (2) is welded on the surface of the core tube (1), a drill bit (3) is welded on the bottom of the core tube (1), four telescopic head shells (4) are distributed in an annular manner on the surface of the core tube (1), a grouting pipe (5) is fixedly connected to the inner cavity of the core tube (1), a grouting port (6) is provided in the inner cavity of the core tube (1), the grouting pipe (5) is connected to the inner cavity of the telescopic head shell (4) through the grouting port (6), and the inner cavity of the telescopic head shell (4) is slidably connected to the inner cavity of the telescopic head shell (4). A telescopic grouting head (7) is connected, a grouting pipe (8) is arranged above the grouting pipe (5), a docking assembly (9) is arranged between the grouting pipe (5) and the grouting pipe (8), an anti-dropping sleeve (10) is sleeved on one end of the telescopic head shell (4) away from the core pipe (1), two hexagon socket bolts (11) are threadedly connected to the surface of the anti-dropping sleeve (10), and one end of the hexagon socket bolt (11) passes through the inner cavity of the anti-dropping sleeve (10) and is threadedly connected to the telescopic head shell (4).

2. The telescopic stirring nozzle according to claim 1, characterized in that: The docking assembly (9) comprises a docking sleeve (91) fixedly connected to the bottom of the grouting pipe (8); the top end of the grouting pipe (5) is fixedly connected to a docking joint (92); the docking joint (92) is inserted into the inner cavity of the docking sleeve (91); the bottoms of both sides of the docking sleeve (91) are rotatably connected to limit clamps (93); the limit clamps (93) are clamped on the surface of the docking joint (92).

3. The telescopic stirring nozzle according to claim 2, characterized in that: The tops of both sides of the docking sleeve (91) are fixedly connected to positioning seats (94), the limiting clamp (93) is engaged in the inner cavity of the positioning seat (94), a limiting pin (95) is provided through the front side of the positioning seat (94), and a limiting plug hole (96) adapted to the limiting pin (95) is provided at one end of the front side of the limiting clamp (93).

4. The telescopic stirring nozzle according to claim 3, characterized in that: A drill rod (12) is arranged above the core tube (1), a flange (13) is arranged between the core tube (1) and the drill rod (12), and the core tube (1) and the drill rod (12) are fixedly connected via the flange (13).

5. The telescopic stirring nozzle according to claim 4, characterized in that: A sealing gasket (14) is embedded in the inner cavity of the butt joint sleeve (91), and the inner wall of the butt joint sleeve (91) and the top end of the butt joint (92) are in close contact with the sealing gasket (14).

6. The telescopic stirring nozzle according to claim 5, characterized in that: An anti-dropout clamping strip (15) is inserted into the surface of the limit pin (95), and an anti-dropout insertion hole (16) adapted to the anti-dropout clamping strip (15) is provided on the surface of the limit pin (95).

7. The telescopic stirring nozzle according to claim 6, characterized in that: The surface of the telescopic head housing (4) is provided with an annular groove matched with the anti-drop sleeve (10).

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