High-pressure jet grouting device for foundation reinforcement

Abstract

The utility model discloses a high-pressure jet grouting device for foundation reinforcement, which is characterized in that a discharge barrel comprises two semicircular shells, one side of each semicircular shell is hinged by a hinge, and the other side of each semicircular shell is locked by a lock catch; cover bodies a are arranged at the bottoms of the two semicircular shells, supports are arranged outside the semicircular shells, the top ends of the supports are hinged to the exteriors of the semicircular shells, and two locking land wheels are arranged at the bottom ends of the supports; a storage tank is arranged on one side of the discharging barrel, stand columns are arranged on the two sides of the storage tank, and a cross beam with a motor is arranged at the tops of the stand columns; a circular support is arranged at the bottom of the cross beam; the supporting plate is arranged below the support and is fixed with the output end of the motor; bearing seats are arranged below three support arms of the support plate, the upper end of the stirring shaft is mounted in the bearing seats, and rollers are mounted above the support plate and at the upper end of the stirring shaft; a cement pump is arranged at one end below the storage tank and connected with one end of a conveying pipe, and the other end of the conveying pipe is located in the discharging barrel. The cement slurry stirring tank is convenient to use and large in cement slurry stirring area, so that the phenomenon of solidification near the tank wall is avoided.

Description

Technical Field

[0001] The utility model relates to a foundation reinforcement high-pressure rotary jet grouting device, belonging to the technical field of grouting equipment. Background Art

[0002] Foundation reinforcement usually adopts the method of grouting reinforcement, which is suitable for the reinforcement of sandy soil, silt, clay and artificial fill. It is generally used to prevent seepage and leakage, improve the strength and deformation modulus of foundation soil, and control the settlement of formations.

[0003] Patent document CN210031769U mentions a foundation reinforcement high-pressure rotary jet grouting device, which positions the discharge barrel by pulling the pull ring, compresses the reset spring by the limit plate, and moves the positioning pin out of the positioning hole to adjust the position of the discharge barrel. When the discharge barrel is adjusted to a fixed position, the pull ring is released to release the elastic potential energy of the reset spring to act on the limit plate, so that the positioning pin cooperates with the positioning hole to fix the position of the discharge barrel. However, the operation of placing the feed pipe in the discharge barrel is more troublesome, and the entire storage tank needs to be lifted and the feed pipe inserted into the discharge barrel, or the feed pipe needs to be removed and inserted into the discharge barrel and then reinstalled with the storage tank; and the stirring area of ​​a single impeller is limited, and the cement slurry in the storage tank is unevenly stirred, which will cause the cement slurry near the tank wall to solidify after a long time. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a foundation reinforcement high-pressure rotary jet grouting device, which can place the feed pipe directly in the discharge barrel, is easy to use, and the cement slurry in the storage tank is stirred more evenly and has a larger stirring area, so that solidification will not occur near the tank wall.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a foundation reinforcement high-pressure rotary jet grouting device, including a discharge barrel, a cover body a, a bracket, a locking ground wheel, a storage tank, a column, a crossbeam, a motor, a support, a support plate, a stirring shaft, a cement pump, a feed pipe, a roller and a bearing seat, the discharge barrel includes two identical semicircular shells, one side of the two semicircular shells in the vertical direction is hinged by two hinges spaced in the vertical direction, and the other side of the two semicircular shells is locked by two spaced locks; a cover body a is fixed to the bottom of the two semicircular shells, and at the lower position of the hinge side, A notch is provided between the two covers a; an arc-shaped waist-shaped hole is provided in each of the two covers a, a cover b is provided at the bottom of the cover a, the top of the cover b is fitted with the bottom of the cover a, and the arcs of the cover a, the cover b and the waist-shaped hole are consistent; two spaced sliding columns are fixed on the top of the cover b, and the sliding columns are respectively fitted in the waist-shaped holes on their respective sides, and a stopper is provided on both sides of the sliding column, and the stopper is fitted on the top of the cover a; a bracket is provided on one side of the outside of the semicircular shell, and the bracket is a frame structure that is narrow at the top and wide at the bottom. The two sides of the top of the bracket are hinged to the outside of the semicircular shell, and two locking wheels are provided on both sides of the bottom of the bracket.

[0006] A storage tank is provided on one side of the discharge barrel, and a vertical column is fixed on both sides of the storage tank, and a crossbeam is fixed on the top of the two columns; a motor with an output end facing downward is provided at the middle position of the top of the crossbeam, and a circular support is provided at the middle position of the bottom of the crossbeam; the support plate is in a herringbone shape, and the support plate is placed under the support, and the output end of the motor is fixed to the center of the support plate; a bearing seat is provided below the edge of the three arms of the support plate, and the upper end of the vertical stirring shaft is cooperated and installed in the bearing seat and the three arms of the support plate, and above the edges of the three arms of the support plate, a roller is installed on the protruding upper end of the stirring shaft, and the rollers are all fitted with the outside of the support; four evenly spaced stirring blades are fixed around the lower part of the stirring shaft, and a cement pump is provided inside the protruding end of the storage tank, and the discharge port at the protruding end of the storage tank is connected to one end of the feed pipe, and the other end of the feed pipe is located in the discharge barrel.

[0007] The beneficial effects of the utility model are as follows: the utility model can place the feeding pipe directly in the discharge barrel, which is easy to use; the height of the discharge barrel can be directly adjusted by the hinged brackets on both sides of the discharge barrel, and is fixed after being locked by the locking wheels; the three stirring shafts in the storage tank always keep rotating under the continuous contact between the rollers and the supports, so that the cement slurry in the storage tank is stirred more evenly and the stirring area is larger, which effectively avoids the solidification phenomenon near the tank wall; it can prevent the cement slurry from splashing during the high-pressure injection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Figure 2 yes Figure 1 Schematic diagram of direction A.

[0011] Figure 3 It is a schematic diagram of the discharge barrel of the utility model when it is opened.

[0012] Figure 4 It is a schematic diagram of the discharge barrel of the utility model when it is closed.

[0013] Figure 5 yes Figure 1 Schematic diagram of the B-direction part structure.

[0014] Numbers in the figure:

[0015] 1. Discharge barrel, 101. Semicircular shell, 2. Cover a, 201. Waist-shaped hole, 3. Notch, 4. Hinge, 5. Lock, 6. Bracket, 7. Ground wheel with locking, 8. Sliding column, 9. Cover b, 10. Storage tank, 11. Column, 12. Beam, 13. Motor, 14. Support, 15. Support plate, 16. Agitator shaft, 17. Agitator blade, 18. Cement pump, 19. Feed pipe, 20. Bearing seat, 21. Roller. DETAILED DESCRIPTION

[0016] like Figure 1 As shown in FIG. 5 , a foundation reinforcement high-pressure rotary jet grouting device comprises a discharge barrel 1, a cover body a2, a bracket 6, a locking wheel 7, a storage tank 10, a column 11, a cross beam 12, a motor 13, a support 14, a support plate 15, a stirring shaft 16, a cement pump 18, a feed pipe 19, a roller 21 and a bearing seat 20. The discharge barrel 1 comprises two identical semicircular shells 101, one side of the two semicircular shells 101 in the vertical direction is hinged by two hinges 4 spaced apart in the vertical direction, and the other side of the two semicircular shells 101 is locked by two spaced locking buckles 5; a cover body a2 is fixed to the bottom of the two semicircular shells 101, and at the lower position of the hinge 4 on this side, the two cover bodies a 2 is provided with a notch 3; an arc-shaped waist-shaped hole 201 is provided in each of the two covers a2, a cover b9 is provided at the bottom of the cover a2, the top of the cover b9 is fitted with the bottom of the cover a2, and the arcs of the cover a2, the cover b9 and the waist-shaped hole 201 are consistent; two spaced sliding columns 8 are fixed on the top of the cover b9, and the sliding columns 8 are respectively matched in the waist-shaped holes 201 on their respective sides, and a block is provided on both sides of the sliding column 8, and the block is fitted on the top of the cover a2; a bracket 6 is provided on one side of the outside of the semicircular shell 101, and the bracket 6 is a frame structure with a narrow upper part and a wide lower part. The two sides of the top of the bracket 6 are hinged to the outside of the semicircular shell 101, and two locking wheels 7 are provided on both sides of the bottom of the bracket 6.

[0017] A storage tank 10 is provided on one side of the discharge barrel 1, and a vertical column 11 is fixed on both sides of the storage tank 10, and a crossbeam 12 is fixed on the top of the two columns 11; a motor 13 with an output end facing downward is provided in the middle position of the top of the crossbeam 12, and a circular support 14 is provided in the middle position of the bottom of the crossbeam 12; a support plate 15 is in a herringbone shape, and the support plate 15 is placed below the support 14, and the output end of the motor 13 is fixed to the center of the support plate 15; a bearing seat 20 is provided below the edges of the three arms of the support plate 15, and the bearing seat 20 is provided vertically. The upper end of the stirring shaft 16 in the direction is mounted in cooperation with the bearing seat 20 and the three arms of the support plate 15. Above the edges of the three arms of the support plate 15, a roller 21 is installed on the protruding upper end of the stirring shaft 16, and the roller 21 is in contact with the outer part of the support 14; four stirring blades 17 with uniform spacing are fixed around the lower part of the stirring shaft 6, and a cement pump 18 is arranged inside the protruding end of the storage tank 10. The discharge port at the protruding end below the storage tank 10 is connected to one end of the feed pipe 19, and the other end of the feed pipe 19 is located in the discharge barrel 1.

[0018] During use, the lock 5 is opened, and the two semicircular shells 101 are opened under the action of the hinge 4, so that the vertical tube body on one side of the feed pipe 19 can be directly placed in the internal cavity of the discharge barrel 1, and then the lock 5 is locked; the output end of the motor 13 drives the support plate 15 to rotate, and the support plate 15 drives the stirring shaft 16 to move. During the rotation of the support plate 15, the roller 21 and the support 14 generate friction to rotate the roller 21, and the roller 21 drives the stirring shaft 16 to rotate under the support of the bearing seat 20, so that the stirring shaft 16 drives the stirring blade 17 to evenly stir the cement slurry in the storage tank 10, and then the cement pump 18 is used to pump the cement slurry into the storage tank 10. 0, the cement slurry stirred evenly is extracted, and the cement slurry enters the discharge barrel 1 through the feed pipe 19 to grout the foundation; then the two brackets 6 are adjusted, because the upper ends of the two brackets 6 are hinged with their respective side semicircular shells 101, under the action of the locking ground wheels 7, the bottoms of the two brackets 6 are simultaneously moved toward the discharge barrel 1 or away from the discharge barrel 1, and the discharge barrel 1 is adjusted to a suitable height and locked and fixed with the locking ground wheels 7; then the sliding columns 8 in the cover bodies a2 on both sides are pushed, and the cover body b9 is pushed out by the sliding columns 8 and the notch 3 is covered to prevent the cement slurry from splashing during the high-pressure injection process.

[0019] Since the discharge barrel 1 itself is light in weight and does not bear external gravity, the locking wheel 7 can effectively bear the gravity of the discharge barrel 1 after being locked, and the height adjustment of the discharge barrel 1 is more convenient; when the two semicircular shells 101 are opened, the notch 3 can avoid interference between the two cover bodies a2; when the two semicircular shells 101 are closed, the cover body b9 under the cover body a2 can effectively cover the notch 3 after being pushed out, so that the cover body a2 and the cover body b9 can effectively form a complete circle of cover bodies; the two spaced sliding columns 8 on the cover body b9 and the blocks on both sides of the sliding columns 8 form an effective and stable support for the cover body b9 on the cover body a2 to prevent the cover body 9 from falling or falling; the narrow upper and wide lower structure of the bracket 6 can make the support of the discharge barrel 1 more stable, and the stirring blades 17 evenly spaced around the stirring shaft 16 can effectively stir the cement slurry in the storage tank 10 more fully and evenly.

Claims

1. A foundation reinforcement high-pressure rotary jet grouting device, characterized in that: The invention comprises a discharge barrel (1), a cover body (2), a bracket (6), a locking wheel (7), a storage tank (10), a column (11), a crossbeam (12), a motor (13), a support (14), a support plate (15), a stirring shaft (16), a cement pump (18), a feed pipe (19), a roller (21) and a bearing seat (20), wherein the discharge barrel (1) comprises two identical semicircular shells (101), one side of the two semicircular shells (101) in a vertical direction is connected by two hinges (4) spaced apart in a vertical direction. ) are hinged, and the other sides of the two semicircular shells (101) are locked by two spaced lock buckles (5); a cover body a (2) is fixed to the bottom of each of the two semicircular shells (101), and a bracket (6) is provided on one side of the outside of each of the semicircular shells (101), and the top sides of the bracket (6) are hinged to the outside of the semicircular shell (101), and the bottom sides of the bracket (6) are provided with two locking wheels (7); a storage tank (10) is provided on one side of the discharge barrel (1), and a vertically-directed The invention relates to a vertical column (11), wherein a horizontal beam (12) is fixed on the top of the two vertical columns (11); a motor (13) with an output end facing downward is provided at the middle position of the top of the horizontal beam (12); a circular support (14) is provided at the middle position of the bottom of the horizontal beam (12); the support plate (15) is in a herringbone shape, the support plate (15) is placed below the support (14), and the output end of the motor (13) is fixed to the center of the support plate (15); a bearing seat (20) is provided below the edges of the three arms of the support plate (15), and the stirring mechanism (20) is vertically actuated. The upper end of the mixing shaft (16) is mounted in cooperation with the bearing seat (20) and the three arms of the support plate (15); a roller (21) is mounted on the protruding upper end of the mixing shaft (16) above the edges of the three arms of the support plate (15); the rollers (21) are fitted with the outside of the support seat (14); a cement pump (18) is arranged inside the protruding end of the storage tank (10); the discharge port of the protruding end of the storage tank (10) is connected to one end of the feed pipe (19); the other end of the feed pipe (19) is located in the discharge barrel (1).

2. A foundation reinforcement high-pressure rotary jet grouting device according to claim 1, characterized in that: A notch (3) is provided between the two cover bodies a (2) at a lower position on the hinge (4) side.

3. A foundation reinforcement high-pressure rotary jet grouting device according to claim 1, characterized in that: An arc-shaped waist-shaped hole (201) is provided in each of the two covers a (2); a cover b (9) is provided at the bottom of the cover a (2); the top of the cover b (9) is fitted with the bottom of the cover a (2); the cover a (2), the cover b (9) and the waist-shaped hole (201) have the same arc; two spaced sliding columns (8) are fixed at the top of the cover b (9); the sliding columns (8) are respectively fitted in the waist-shaped holes (201) located on their respective sides; a stopper is provided on both sides of the sliding column (8), and the stopper is fitted with the top of the cover a (2).

4. A foundation reinforcement high-pressure rotary jet grouting device according to claim 1, characterized in that: The bracket (6) is a frame structure that is narrow at the top and wide at the bottom.

5. The high-pressure rotary jet grouting device for foundation reinforcement according to claim 1, characterized in that: Four stirring blades (17) are fixed at even intervals around the lower side of the stirring shaft (16).

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