Reliable and convenient high-pressure jet grouting three-pipe drill bit body

Abstract

The utility model discloses a reliable and convenient high-pressure jet grouting three-pipe drill bit body, which comprises a two-way jet grouting valve, a two-way jet grouting joint and a two-way jet grouting seat, the two-way jet grouting joint is welded on the upper side of the two-way jet grouting valve, external threads are arranged on the two-way jet grouting joint, the two-way jet grouting seat is in threaded connection with the two-way jet grouting joint, and the two-way jet grouting seat is connected with the two-way jet grouting joint. An air channel, a water channel and a slurry channel are formed in the two-way rotary spraying valve, the air channel longitudinally penetrates through the two-way rotary spraying valve, the water channel is arranged in a T shape, the slurry channel is arranged in a T shape, a drill bit is arranged on the two-way rotary spraying seat, and a through hole is formed in the drill bit. The utility model belongs to the technical field of engineering excavation devices, and particularly relates to an integrated two-way rotary spraying seat simplified structure, the two-way rotary spraying seat is in threaded connection with a two-way rotary spraying connector, so that the trouble of disassembly and assembly is reduced, and the spraying effect is adjusted by arranging multiple channels.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering excavation devices, and particularly refers to a reliable and convenient high-pressure jet grouting three-pipe bit body. Background Technique

[0002] A jet grouting rig is a drilling tool used to transport media such as slurry, compressed air, and clean water, and can ensure continuous dynamic and static tightness under high-pressure working conditions. In a jet grouting rig, a drill pipe is a key component, which can transport the slurry and deliver the slurry to the bit for ejection.

[0003] A jet grouting rig usually includes a core shaft for transporting slurry. Traditional core shafts usually have only one channel for the flow of slurry and eject the slurry from the spray nozzle.

[0004] Moreover, the existing outer sleeve is at least divided into three sections, with poor reliability, large size, high cost, and the two-way jet grouting joint and the connecting pipe need to be welded, making disassembly and assembly cumbersome. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is:

[0006] The prior art has only one channel, and the structure of the existing outer sleeve is complex, and disassembly and assembly are troublesome.

[0007] To solve the above technical problems, the technical solution proposed by the utility model is: a reliable and convenient high-pressure jet grouting three-pipe bit body, including a two-way jet grouting valve, a two-way jet grouting joint, and a two-way jet grouting seat. The two-way jet grouting joint is provided with an external thread, and the two-way jet grouting seat and the two-way jet grouting joint are threadedly connected. The two-way jet grouting valve is completely assembled in the two-way jet grouting seat and is limited by the two-way jet grouting joint. An air channel, a water channel, and a slurry channel are opened on the two-way jet grouting valve. The air channel runs longitudinally through the two-way jet grouting valve. The water channel is arranged in a T shape, and the slurry channel is arranged in a T shape. A drill bit is provided on the two-way jet grouting seat, and a through hole is opened on the drill bit.

[0008] Further, the top of the air channel is the air channel inlet, the top of the water channel is the water channel inlet, and the top of the slurry channel is the slurry channel inlet.

[0009] Further, the water channel and the slurry channel extend longitudinally and penetrate transversely, and the longitudinal depth of the slurry channel is greater than that of the water channel. The transverse penetration parts of the slurry channel and the water channel are perpendicular to each other and do not interfere with each other.

[0010] Further, the air channel is perpendicular to the transverse penetration parts of the water channel and the slurry channel respectively and does not interfere with each other.

[0011] Further, the end of the transverse penetration of the water channel is the water channel outlet, and the end of the transverse penetration of the slurry channel is the slurry channel outlet.

[0012] Further, a water channel connector is installed on the water channel inlet, and a slurry channel connector is installed on the slurry channel inlet.

[0013] Further, spray nozzles are respectively installed on the water channel outlet and the slurry channel outlet.

[0014] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0015] By setting an integrated two-way jet grouting seat, the structure is streamlined. By setting the threaded connection between the two-way jet grouting seat and the two-way jet grouting joint, the trouble of disassembly and assembly is reduced. By setting multiple groups of channels, the functions of the drill bit are increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is an overall structural schematic diagram of a reliable and convenient high-pressure jet grouting three-tube drill bit body proposed by the present utility model;

[0017] Figure 2 FIG. 2 is a cross-sectional view of a reliable and convenient high-pressure jet grouting three-tube drill bit body proposed by the present utility model;

[0018] Figure 3 FIG. 3 is a cross-sectional view of a reliable and convenient high-pressure jet grouting three-tube drill bit body from another angle proposed by the present utility model;

[0019] Figure 4 FIG. 4 is a cross-sectional view of a reliable and convenient high-pressure jet grouting three-tube drill bit body from a third angle proposed by the present utility model;

[0020] Figure 5 FIG. 5 is a structural schematic diagram of a two-way jet grouting valve of a reliable and convenient high-pressure jet grouting three-tube drill bit body proposed by the present utility model.

[0021] Among them, 1. Two-way jet grouting valve; 2. Two-way jet grouting joint; 3. Two-way jet grouting seat; 4. Air channel; 5. Water channel; 6. Slurry channel; 7. Drill bit; 8. Through hole; 9. Air channel inlet; 10. Water channel inlet; 11. Slurry channel inlet; 12. Water channel outlet; 13. Slurry channel outlet; 14. Water channel connector; 15. Slurry channel connector; 16. Spray nozzle.

[0022] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figures 1-5 shown, a reliable and convenient high-pressure jet grouting three-tube drill bit body proposed by the present utility model includes a two-way jet grouting valve 1, a two-way jet grouting joint 2, and a two-way jet grouting seat 3. The two-way jet grouting valve 1 preferably has a length of 135 mm. The two-way jet grouting valve 1 is completely assembled in the two-way jet grouting seat 3 and is limited by the two-way jet grouting joint 2. The two-way jet grouting joint 2 is provided with an external thread, and the two-way jet grouting seat 3 and the two-way jet grouting joint 2 are threadedly connected.

[0025] The two-way jet grouting joint 2 is of an integrated design, with a simple structure and relatively low preparation cost. At the same time, through the threaded connection between the two-way jet grouting joint 2 and the two-way jet grouting seat 3, disassembly and installation are relatively convenient and fast.

[0026] Among them, an air passage 4, a water passage 5, and a slurry passage 6 are opened on the two-way jet grouting valve 1. The top of the air passage 4 is an air passage inlet 9. The air passage 4 longitudinally penetrates the two-way jet grouting valve 1. A drill bit 7 is provided on the two-way jet grouting seat 3, and a through hole 8 communicating with 4 is opened on the drill bit 7.

[0027] As shown in the specification Figures 2-5 shown, the water passage 5 is arranged in a T shape. The top of the water passage 5 is a water passage inlet 10. A water passage connector 14 is installed on the water passage inlet 10 to facilitate connection with an external water source. The end of the water passage 5 that horizontally penetrates is a water passage outlet 12.

[0028] As shown in the specification Figure 2 、 4 、5, the slurry passage 6 is arranged in a T shape. The top of the slurry passage 6 is a slurry passage inlet 11. A slurry passage connector 15 is installed on the slurry passage inlet 11 to facilitate connection with external slurry. The end of the slurry passage 6 that horizontally penetrates is a slurry passage outlet 13.

[0029] Sprinklers 16 are respectively installed on the water passage outlet 12 and the slurry passage outlet 13. An opening corresponding to the sprinkler 16 is opened on the outer wall of the two-way jet grouting joint 2.

[0030] The water passage 5 and the slurry passage 6 longitudinally penetrate and horizontally penetrate, and the longitudinal depth of the slurry passage 6 is greater than that of the water passage 5. The horizontally penetrating parts of the slurry passage 6 and the water passage 5 are perpendicular to each other and do not interfere with each other. The air passage 4 is perpendicular to the horizontally penetrating parts of the water passage 5 and the slurry passage 6 respectively and does not interfere with each other. The design and distribution are relatively reasonable.

[0031] During specific use, connect the airway inlet 9, the waterway connector 14, and the slurry channel connector 15 to the air, water, and slurry sources respectively. Through this high-pressure jet grouting power head, the slurry, water, and air are transported into the formed pile hole to finally form a pile column. Through this high-pressure jet grouting power head, independent transportation of the three jet grouting media of slurry, air, and water can be achieved, effectively shortening the longitudinal length of the high-pressure jet grouting power head, reducing the center of gravity height of the installed high-pressure jet grouting power head, and effectively preventing the leakage of the jet grouting media at the jetting part;

[0032] At the same time, by setting the integrated two-way jet grouting seat 3, the structure is streamlined. By setting the threaded connection between the two-way jet grouting seat 3 and the two-way jet grouting joint 2, the trouble of disassembly and assembly is reduced. The above is the usage process of the entire reliable and convenient high-pressure jet grouting three-pipe drill bit body.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0035] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the creative purpose of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they should all fall within the protection scope of the present invention.

Claims

1. A reliable and convenient high-pressure jet grouting triple-tube drill bit body, characterized in that: It includes a two-way jet grouting valve (1), a two-way jet grouting joint (2) and a two-way jet grouting seat (3). The two-way jet grouting joint (2) is provided with an external thread. The two-way jet grouting valve (1) is completely assembled in the two-way jet grouting seat (3) and is limited by the two-way jet grouting joint (2). The two-way jet grouting seat (3) and the two-way jet grouting joint (2) are threadedly connected. An air duct (4), a water duct (5) and a slurry duct (6) are opened on the two-way jet grouting valve (1). The air duct (4) longitudinally penetrates through the two-way jet grouting valve (1). The water duct (5) is arranged in a T shape. The slurry duct (6) is arranged in a T shape. A drill bit (7) is provided on the two-way jet grouting seat (3). A through hole (8) communicating with the air duct (4) is opened on the drill bit (7).

2. A reliable and convenient high-pressure jet grouting triple-tube drill bit body according to claim 1, characterized in that: The top of the air duct (4) is an air duct inlet (9). The top of the water duct (5) is a water duct inlet (10). The top of the slurry duct (6) is a slurry duct inlet (11).

3. A reliable and convenient high-pressure jet grouting triple-tube drill bit body according to claim 2, characterized in that: The water duct (5) and the slurry duct (6) longitudinally penetrate and horizontally penetrate, and the longitudinal depth of the slurry duct (6) is greater than that of the water duct (5). The horizontally penetrating parts of the slurry duct (6) and the water duct (5) are perpendicular to each other and do not interfere with each other.

4. A reliable and convenient high-pressure jet grouting triple-tube drill bit body according to claim 3, characterized in that: The air duct (4) is perpendicular to the horizontally penetrating parts of the water duct (5) and the slurry duct (6) respectively and does not interfere with each other.

5. A reliable and convenient high-pressure jet grouting triple-tube drill bit body according to claim 2, characterized in that: The end of the water duct (5) horizontally penetrating is a water duct outlet (12). The end of the slurry duct (6) horizontally penetrating is a slurry duct outlet (13).

6. The reliable and convenient high-pressure jet grouting three-tube drill bit body according to claim 5, wherein: A water duct connector (14) is installed on the water duct inlet (10). A slurry duct connector (15) is installed on the slurry duct inlet (11).

7. A reliable and convenient high-pressure jet grouting three-tube drill bit body according to claim 6, characterized in that: Spray heads (16) are respectively installed on the water duct outlet (12) and the slurry duct outlet (13).

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