Nozzle structure of high-pressure jet grouting pile

Abstract

The utility model discloses a high-pressure jet grouting pile nozzle structure and relates to the technical field of high-pressure jet grouting piles, the high-pressure jet grouting pile nozzle structure comprises a pile body and a slurry conveying mechanism mounted in the pile body, an air cavity is formed in the pile body, a slurry conveying pipe is rotatably connected to the inner wall of the top of the air cavity, and one end of the slurry conveying pipe is connected to the slurry conveying mechanism; the slurry conveying mechanism comprises a slurry conveying disc fixedly connected to the slurry conveying pipe, mounting openings are formed in the outer walls of the two sides of the slurry conveying disc correspondingly, nozzle mechanisms are mounted on the inner walls of the two mounting openings correspondingly, and an air inlet pipe communicating with the air cavity is fixedly connected to the inner wall of the pile body. The two detachable nozzle mechanisms are arranged on the slurry conveying disc, slurry can be conveniently sprayed out in a rotating mode through the arrangement of the nozzle mechanisms, the two mounting assemblies are arranged on the spray head, the spray head can be conveniently fixed to the slurry conveying disc through the arrangement of the mounting assemblies, and the two mounting assemblies are matched with the mounting sleeve, so that the spray head can be conveniently and rapidly disassembled and assembled; and thus, the nozzle can be conveniently detached and cleaned.

Description

Technical Field

[0001] The present application relates to the technical field of high-pressure rotary jet grouting piles, and in particular to a nozzle structure of a high-pressure rotary jet grouting pile. Background Art

[0002] High-pressure jet grouting uses a high-pressure rotating nozzle to spray cement slurry into the soil layer and mix it with the soil, forming a continuous, overlapping cement reinforcement. However, this method of operation sometimes uses high-pressure water or cement slurry and air jets to cut and mix the soil. However, due to uneven compressed air, it is often impossible to form an air ring around the liquid jet to provide protection. In addition, the nozzle is often blocked by foreign objects in the formation, which limits the diameter and quality of the pile.

[0003] After searching, the Chinese patent publication number CN219993620U discloses a high-pressure rotary jet pile nozzle structure, including a drill rod and a drill bit fixedly connected thereto; two air outlet nozzles are symmetrically arranged at one end of the drill rod close to the drill bit, and a nozzle is sleeved in each air outlet nozzle; the two air outlet nozzles are connected to the air cavity provided in the drill rod; the two nozzles are connected to the slurry pipe provided in the air cavity; an active chamber is also provided in the drill rod, and the active chamber is placed between the air cavity and the drill bit, and a partition is provided in the active chamber; the outer edge of the partition extends a sealing plate toward the direction close to the air outlet nozzle, and a slider is fixedly connected to the side of the partition close to the air cavity, and the side of the partition away from the air cavity is connected to the drill bit through a spring.

[0004] A high-pressure rotary jet pile nozzle structure in the above patent has the following shortcomings: in the above patent, the nozzle and the slurry pipe are connected in an integrated manner. Once the nozzle is blocked, the slurry pipe will be unable to transport the slurry, and the blocked nozzle is inconvenient to clean. Utility Model Content

[0005] In order to improve the problem of existing nozzle clogging and inconvenience in cleaning, the present application provides a high-pressure rotary jet pile nozzle structure.

[0006] The present application provides a high-pressure rotary jet pile nozzle structure, comprising a pile body and a slurry delivery mechanism installed inside the pile body, an air cavity is opened inside the pile body, and a slurry delivery pipe is rotatably connected to the inner wall of the top of the air cavity, one end of the slurry delivery pipe is connected to the slurry delivery mechanism, the slurry delivery mechanism comprises a slurry delivery plate fixedly connected to the slurry delivery pipe, both sides of the outer wall of the slurry delivery plate are opened with mounting openings, and the inner walls of the two mounting openings are installed with nozzle mechanisms, and the inner wall of the pile body is fixedly connected to an air inlet pipe connected to the air cavity.

[0007] By adopting the above structure, the setting of the air cavity facilitates the installation of the slurry delivery pipe and the slurry delivery mechanism. When the slurry delivery pipe rotates, it is convenient to directly drive the slurry delivery mechanism to rotate, thereby facilitating the rotary spraying of the slurry. The two detachable nozzle mechanisms on the slurry delivery disc facilitate the disassembly and cleaning of the nozzles. The setting of the air inlet pipe facilitates the delivery of high-pressure gas into the air cavity.

[0008] The nozzle mechanism comprises a mounting sleeve, and the inner wall of the mounting sleeve is fixedly connected with a nozzle.

[0009] By adopting the above structure, the installation of the nozzle is facilitated by the arrangement of the installation sleeve, and the arrangement of the nozzle facilitates the delivery of the slurry in the slurry delivery tray.

[0010] The outer wall of the nozzle is provided with two symmetrically arranged grooves, and the inner walls of the two grooves are both provided with mounting components.

[0011] By adopting the above structure, two grooves are provided on the outer wall of the nozzle. The arrangement of the two grooves facilitates the installation of the installation assembly, and the arrangement of the installation assembly facilitates the rapid disassembly and assembly of the nozzle.

[0012] A sealing ring is fixedly connected to the top outer wall of the installation sleeve. Two symmetrical rectangular grooves are provided on the outer wall of the installation sleeve, and sliding blocks are slidably connected to the inner walls of the two rectangular grooves.

[0013] By adopting the above structure, the sealing ring on the installation sleeve facilitates the sealing of the nozzle installation, and the rectangular groove on the installation sleeve facilitates the sliding installation of the sliding block.

[0014] The mounting assembly includes a mounting seat fixedly connected to the inner wall of the groove, and the inner wall of the mounting seat is provided with a mounting cavity 1, an inner wall on one side of the mounting cavity 1 is provided with an opening, the inner wall of the opening is slidably connected with a limit block with a T-shaped cross-section, and the inner wall of the mounting opening is provided with two symmetrically arranged limit grooves, and the limit blocks are inserted into the inner wall of the limit groove.

[0015] By adopting the above structure, the installation of the mounting seat is facilitated by the opening of the groove, and the setting of the mounting cavity in the mounting seat facilitates the sliding installation of the limit block. When the limit block is inserted into the limit groove, the nozzle can be installed on the slurry delivery plate.

[0016] The inner wall of one side of the installation cavity is fixedly connected to two symmetrically arranged fixing rods, the limit block is slidably connected to the outer walls of the two fixing rods, the inner wall of the installation cavity is slidably connected to the wedge block 1, and the outer wall of one side of the wedge block is slidably connected to the sliding block, and one end of the sliding block is fixedly connected to the limit block.

[0017] By adopting the above structure, the two fixed rods in the installation cavity 1 are used to facilitate the sliding installation of the limit block, thereby avoiding the offset of the limit block during the sliding process. When the wedge block 1 slides, the limit block is directly driven to move by the sliding block, thereby realizing the rapid disassembly and assembly of the nozzle.

[0018] A spring rod 1 is fixedly connected to an inner wall of one side of the installation cavity 1, and one end of the spring rod 1 is fixedly connected to the wedge block 1.

[0019] By adopting the above structure, the arrangement of the spring rod 1 in the installation cavity 1 facilitates the support of the wedge block 1, and the spring rod 1 is conveniently compressed when the wedge block 1 moves.

[0020] The mounting sleeve is provided with a mounting cavity 2 inside, and the inner wall of the mounting cavity 2 is slidably connected to a wedge block 2, the outer wall of the top of the wedge block 2 is slidably connected to a connecting plate, one end of the connecting plate is fixedly connected to the wedge block 1, a spring rod 2 is fixedly connected to the inner wall of one side of the mounting cavity 2, and one end of the spring rod 2 is fixedly connected to the wedge block 2, and one end of the wedge block 2 is fixedly connected to the sliding block.

[0021] By adopting the above structure, the second installation cavity is opened to facilitate the sliding installation of the wedge block 2. When the wedge block 2 slides, it is convenient to compress the spring rod 2. When the wedge block 2 slides, it directly pushes the wedge block 1 to move through the connecting plate.

[0022] In summary, the beneficial effects of this application are as follows:

[0023] 1. The present application sets two detachable nozzle mechanisms on the slurry delivery disc. The setting of the nozzle mechanism facilitates the rotation and spraying of the slurry. Two mounting components are set on the nozzle. The setting of the mounting components facilitates the fixing of the nozzle on the slurry delivery disc. The cooperation between the two mounting components and the mounting sleeve facilitates the rapid disassembly and assembly of the nozzle, and thus facilitates the disassembly and cleaning of the nozzle.

[0024] 2. This application facilitates the adjustment of the position of the limit block by cooperating between the two wedge-shaped blocks in the installation cavity 1 and the installation cavity 2, thereby facilitating the rapid disassembly and assembly of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a partial cross-sectional schematic diagram of the pile body of the present application;

[0026] Figure 2 This is a schematic diagram of the slurry delivery mechanism of this application;

[0027] Figure 3 It is a schematic diagram of the nozzle mechanism of this application;

[0028] Figure 4 This is a schematic diagram of the components installed in this application.

[0029] Description of reference numerals:

[0030] 1. Pile body; 2. Air inlet pipe; 3. Air cavity; 4. Slurry delivery pipe; 5. Slurry delivery mechanism; 6. Slurry delivery plate; 7. Nozzle mechanism; 8. Nozzle; 9. Mounting sleeve; 10. Sealing ring; 11. Mounting assembly; 12. Sliding block; 13. Mounting seat; 14. Mounting cavity 1; 15. Spring rod 1; 16. Fixing rod; 17. Limit block; 18. Wedge block 1; 19. Connecting plate; 20. Mounting cavity 2; 21. Wedge block 2; 22. Spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] See also Figure 1-3 , a high-pressure rotary jet pile nozzle structure, a high-pressure rotary jet pile, is to use a high-pressure rotating nozzle to spray cement slurry into the soil layer and mix it with the soil to form a continuous overlapping cement reinforcement body. When the cement slurry is in the normal rotary jet process, the nozzle will be blocked. The existing nozzle and slurry pipe are mostly integrated structures, but once the nozzle is blocked, it is inconvenient to clean it. It includes a pile body 1 and a slurry delivery mechanism 5 installed inside the pile body 1. The setting of the slurry delivery mechanism 5 is convenient for delivering cement slurry to a designated position. An air cavity 3 is opened inside the pile body 1, and the inner wall of the top of the air cavity 3 rotates. It is dynamically connected with a slurry delivery pipe 4, one end of which is connected to a slurry delivery mechanism 5. The setting of the slurry delivery pipe 4 is convenient for delivering cement slurry to the slurry delivery mechanism 5. The slurry delivery mechanism 5 includes a slurry delivery plate 6 fixedly connected to the slurry delivery pipe 4. The outer walls on both sides of the slurry delivery plate 6 are provided with mounting openings, and the inner walls of the two mounting openings are installed with nozzle mechanisms 7. The two detachable nozzle mechanisms 7 are convenient for disassembly and cleaning when the nozzles are blocked, so as to avoid nozzle blockage affecting the normal rotary spraying of cement slurry. The inner wall of the pile body 1 is fixedly connected with an air inlet pipe 2 connected to the air cavity 3.

[0033] During use, the setting of the air cavity 3 facilitates the installation of the slurry delivery pipe 4 and the slurry delivery mechanism 5. When the slurry delivery pipe 4 rotates, it is convenient to directly drive the slurry delivery mechanism 5 to rotate, thereby facilitating the rotary spraying of the slurry. The two detachable nozzle mechanisms 7 on the slurry delivery disk 6 facilitate the disassembly and cleaning of the nozzles. The setting of the air inlet pipe 2 facilitates the delivery of high-pressure gas to the air cavity 3.

[0034] Reference Figure 3 The nozzle mechanism 7 includes a mounting sleeve 9. The setting of the mounting sleeve 9 is convenient for closing the mounting port on the slurry delivery plate 6 when the nozzle 8 is installed to avoid leakage of cement. The inner wall of the mounting sleeve 9 is fixedly connected with the nozzle 8. The setting of the mounting sleeve 9 facilitates the installation of the nozzle 8. The setting of the nozzle 8 facilitates the delivery of the slurry in the slurry delivery plate 6.

[0035] Reference Figure 3 and Figure 4 The outer wall of the nozzle 8 is provided with two symmetrically arranged grooves, and the inner walls of the two grooves are installed with mounting components 11. The grooves on the nozzle 8 facilitate the installation of the two mounting components 11. The setting of the mounting components 11 facilitates the rapid fixation of the nozzle 8 on the slurry delivery plate 6. By providing two grooves on the outer wall of the nozzle 8, the setting of the two grooves facilitates the installation of the mounting components 11. The setting of the mounting components 11 facilitates the rapid disassembly and assembly of the nozzle 8.

[0036] Reference Figure 3 The top outer wall of the mounting sleeve 9 is fixedly connected with a sealing ring 10. The setting of the sealing ring 10 is convenient for closing the gap between the mounting sleeve 9 and the slurry delivery plate 6, thereby avoiding leakage of cement slurry. The outer wall of the mounting sleeve 9 is provided with two symmetrical rectangular grooves, and the inner walls of the two rectangular grooves are slidably connected with sliding blocks 12. The opening of the rectangular groove is convenient for hiding the sliding blocks 12. The setting of the sealing ring 10 on the mounting sleeve 9 facilitates the sealing of the installation of the nozzle 8. The rectangular groove on the mounting sleeve 9 is convenient for sliding installation of the sliding block 12.

[0037] Reference Figure 4 The mounting assembly 11 includes a mounting seat 13 fixedly connected to the inner wall of the groove. The mounting seat 13 is conveniently set to fix the mounting assembly 11 on the inner wall of the groove, and the inner wall of the mounting seat 13 is provided with a mounting cavity 14. An opening is provided on one side of the inner wall of the mounting cavity 14, and the inner wall of the opening is slidably connected with a limit block 17 with a T-shaped cross-section. The setting of the opening in the mounting cavity 14 is convenient for sliding installation of the limit block 17. The inner wall of the mounting opening is provided with two symmetrical limit grooves. When the limit block 17 is inserted into the limit groove, the nozzle 8 can be fixed on the slurry delivery disk 6. The limit block 17 is plugged into the inner wall of the limit groove, and the installation of the mounting seat 13 is convenient through the opening of the groove. The setting of the mounting cavity 14 in the mounting seat 13 is convenient for sliding installation of the limit block 17. When the limit block 17 is inserted into the limit groove, the nozzle 8 can be installed on the slurry delivery disk 6.

[0038] Reference Figure 4The inner wall of one side of the installation cavity 14 is fixedly connected with two symmetrically arranged fixing rods 16, and the limit block 17 is slidably connected to the outer walls of the two fixing rods 16. The setting of the two fixing rods 16 facilitates limiting the sliding trajectory of the limit block 17, thereby preventing the limit block 17 from deviating and causing it to be unable to be inserted into the limit groove. The inner wall of the installation cavity 14 is slidably connected with a wedge block 18, and the outer wall of one side of the wedge block 18 is slidably connected with a sliding block, one end of the sliding block is fixedly connected to the limit block 17, and the width of the wedge block 18 gradually increases, so that when the wedge block 18 slides, the sliding block drives the limit block 17 to move, and the two fixing rods 16 in the installation cavity 14 are used to facilitate the sliding installation of the limit block 17, avoiding the deviation of the limit block 17 during the sliding process. When the wedge block 18 slides, the limit block 17 is directly driven to move by the sliding block, thereby realizing quick disassembly and assembly of the nozzle 8.

[0039] Reference Figure 4 A spring rod 15 is fixedly connected to the inner wall of one side of the installation cavity 14, and one end of the spring rod 15 is fixedly connected to the wedge block 18. The setting of the spring rod 15 is convenient for supporting the wedge block 18, and the wedge block 18 compresses the spring rod 15 when it slides. The setting of the spring rod 15 in the installation cavity 14 facilitates the support of the wedge block 18, and the spring rod 15 is convenient for compressing the spring rod 15 when the wedge block 18 moves.

[0040] Reference Figure 4 , the interior of the mounting sleeve 9 is provided with a mounting cavity 20, and the inner wall of the mounting cavity 20 is slidably connected with a wedge block 21, and the outer wall of the top of the wedge block 21 is slidably connected with a connecting plate 19, one end of the connecting plate 19 is fixedly connected to the wedge block 18, when the wedge block 21 slides in the mounting cavity 20, the wedge block 18 is directly driven to slide through the connecting plate 19, thereby facilitating the movement of the limit block 17, and a spring rod 22 is fixedly connected to the inner wall of one side of the mounting cavity 20, and one end of the spring rod 22 is fixedly connected to the wedge block 21, and the design of the spring rod 22 The arrangement is convenient for driving the wedge block 21 to return to its original position. One end of the wedge block 21 is fixedly connected to the sliding block 12. The sliding block 12 protrudes from the outer wall of the mounting sleeve 9. When the position of the limit block 17 needs to be adjusted, the sliding block 12 is directly pressed to push the wedge block 21 to slide toward the spring rod 22, and at the same time, the spring rod 22 is pressed. The opening of the mounting cavity 20 facilitates the sliding installation of the wedge block 21. When the wedge block 21 slides, it is convenient to compress the spring rod 22. When the wedge block 21 slides, it directly pushes the wedge block 18 to move through the connecting plate 19.

[0041] The implementation principle of the present application is: during use, when the nozzle mechanism 7 is blocked, the nozzle 8 is first disassembled. During disassembly, the two sliding blocks 12 are pressed. When the sliding block 12 moves, it directly pushes the wedge block 21 to slide. When the wedge block 21 slides, it directly compresses the spring rod 22. When the wedge block 21 slides, it directly pushes the wedge block 2 18 to rise through the connecting plate 19. When the wedge block 2 18 rises, it directly compresses the spring rod 15. At the same time, by pulling the limit block 17, it is collected into the installation cavity 14. When the limit block 17 is away from the limit groove, the nozzle 8 can be disassembled. After disassembly, the nozzle 8 can be directly disassembled.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-pressure jet grouting pile nozzle structure, comprising a pile body (1) and a slurry delivery mechanism (5) installed inside the pile body (1), characterized in that: An air cavity (3) is provided inside the pile body (1), and a slurry delivery pipe (4) is rotatably connected to the inner wall of the top of the air cavity (3). One end of the slurry delivery pipe (4) is connected to a slurry delivery mechanism (5). The slurry delivery mechanism (5) includes a slurry delivery disc (6) fixedly connected to the slurry delivery pipe (4). Both sides of the outer wall of the slurry delivery disc (6) are provided with mounting openings, and the inner walls of the two mounting openings are both installed with nozzle mechanisms (7). The inner wall of the pile body (1) is fixedly connected to an air inlet pipe (2) communicating with the air cavity (3).

2. A high-pressure jet grouting pile nozzle structure according to claim 1, characterized in that: The nozzle mechanism (7) comprises a mounting sleeve (9), and the inner wall of the mounting sleeve (9) is fixedly connected to a nozzle (8).

3. A high-pressure jet grouting pile nozzle structure according to claim 2, characterized in that: The outer wall of the nozzle (8) is provided with two symmetrically arranged grooves, and the inner walls of the two grooves are both installed with mounting components (11).

4. A high-pressure jet grouting pile nozzle structure according to claim 3, characterized in that: A sealing ring (10) is fixedly connected to the top outer wall of the mounting sleeve (9), and two symmetrical rectangular grooves are formed on the outer wall of the mounting sleeve (9), and sliding blocks (12) are slidably connected to the inner walls of the two rectangular grooves.

5. The high-pressure jet grouting pile nozzle structure according to claim 4, characterized in that: The mounting assembly (11) includes a mounting seat (13) fixedly connected to the inner wall of the groove, and the inner wall of the mounting seat (13) is provided with a mounting cavity (14), an inner wall of one side of the mounting cavity (14) is provided with an opening, the inner wall of the opening is slidably connected with a limit block (17) with a T-shaped cross-section, the inner wall of the mounting opening is provided with two symmetrically arranged limit grooves, and the limit block (17) is plugged into the inner wall of the limit groove.

6. The high-pressure jet grouting pile nozzle structure according to claim 5, characterized in that: The inner wall of one side of the installation cavity (14) is fixedly connected to two symmetrically arranged fixing rods (16), the limiting block (17) is slidably connected to the outer walls of the two fixing rods (16), the inner wall of the installation cavity (14) is slidably connected to a wedge block (18), and the outer wall of one side of the wedge block (18) is slidably connected to a sliding block, and one end of the sliding block is fixedly connected to the limiting block (17).

7. A high-pressure jet grouting pile nozzle structure according to claim 6, characterized in that: A spring rod 1 (15) is fixedly connected to an inner wall of one side of the installation cavity 1 (14), and one end of the spring rod 1 (15) is fixedly connected to a wedge block 1 (18).

8. The high-pressure jet grouting pile nozzle structure according to claim 7, characterized in that: The interior of the mounting sleeve (9) is provided with a second mounting cavity (20), and the inner wall of the second mounting cavity (20) is slidably connected to a second wedge block (21), the top outer wall of the second wedge block (21) is slidably connected to a connecting plate (19), one end of the connecting plate (19) is fixedly connected to the first wedge block (18), one side inner wall of the second mounting cavity (20) is fixedly connected to a second spring rod (22), and one end of the second spring rod (22) is fixedly connected to the second wedge block (21), and one end of the second wedge block (21) is fixedly connected to the sliding block (12).

Images