Rotary jet grouting composite foundation reinforcing equipment

Abstract

The utility model discloses rotary jet grouting composite foundation reinforcing equipment, which belongs to the technical field of grouting equipment, and comprises a mounting top plate, a device outer shell is fixedly mounted at the lower end of the mounting top plate, and a stabilizing ring is fixedly mounted on the outer side of the middle of the device outer shell. A plurality of stabilizing rods are fixedly mounted at the position, located on the periphery of the device outer shell, of the upper end of the stabilizing ring, a supporting bottom plate is fixedly mounted on the lower sides of the stabilizing rods, and a device connecting piece is fixedly mounted on the upper side of a mounting top plate. When the grouting device is used, the grouting device rotates along with the annular spraying ring and enters the drilled rotating hole from the side edge, so that internal grout is in a certain flowing state, when the grout flows, the pressure in a drill hole is dynamically changed, gaps of a drill hole soil layer are more easily filled with the grout, and the grouting reinforcement effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting equipment, and more specifically to a rotary grouting composite foundation reinforcement device. Background Art

[0002] Foundation grouting is a foundation treatment technology that can increase the bearing capacity and stability of the foundation, making the foundation more suitable for supporting buildings or other structures. It can fill the gaps and cracks in the strata and improve the overall density and consistency of the soil. At the same time, foundation grouting can reduce the settlement of the soil, especially when the foundation is uneven or loose.

[0003] Usually, during the process of grouting to reinforce the foundation, a grouting pipe is inserted into the drilling position for grouting. The slurry is poured in from the bottom, and the liquid level rises upward with the pouring until the entire hole is filled, thereby completing the grouting. Since the slurry itself has a high viscosity, the method of grouting from the bottom can easily cause uneven slurry filling, and some gaps inside the drilled hole are not easy to penetrate the slurry, resulting in poor grouting effect. Summary of the invention

[0004] The purpose of the utility model is to provide a rotary grouting composite foundation reinforcement device to solve the problems raised in the above background technology.

[0005] A rotary jet grouting composite foundation reinforcement device comprises a mounting top plate, a device outer shell is fixedly mounted on the lower end of the mounting top plate, a stabilizing ring is fixedly mounted on the outer side of the middle part of the device outer shell, a plurality of stabilizing rods are fixedly mounted on the upper end of the stabilizing ring at the periphery of the device outer shell, and a supporting bottom plate is fixedly mounted on the lower side of the stabilizing rod;

[0006] A device connecting piece is fixedly installed on the upper side of the mounting top plate, a rotating piece is rotatably installed in the middle of the lower side of the device connecting piece, a stepping motor is fixedly installed on the upper end of the device connecting piece, a sealing top plate is rotatably installed in the middle of the mounting top plate, a transmission shaft is fixedly installed in the middle of the lower side of the sealing top plate, a transmission fan blade is fixedly installed on the outer periphery of the transmission shaft, an annular spray ring is fixedly installed on the lower end of the transmission shaft, four rotating spray ports are annularly opened at the upper end of the annular spray ring, a rotating head is fixedly installed on the lower side of the annular spray ring, and a rotating connecting piece is fixedly installed on the lower end of the device outer shell;

[0007] A connecting pipe is fixedly installed on the upper side of the device outer shell, an injection head is fixedly installed on the side of the connecting pipe away from the device outer shell, and a connecting device is fixedly installed on the end of the injection head away from the connecting pipe.

[0008] Furthermore, a circular groove is provided on the upper middle side of the device connecting member, and the output shaft of the stepping motor passes through the circular groove provided in the device connecting member and is fixedly connected with the rotating member.

[0009] By adopting the above technical solution, the output shaft of the stepper motor can drive the rotating part to rotate.

[0010] Furthermore, a limiting member is fixedly installed on the middle part of the upper side of the sealing top plate, and a clamping groove corresponding to the limiting member is opened on the lower side of the rotating member.

[0011] By adopting the above technical solution, the rotating member is connected with the limiting member by means of the clamping groove, and the stepping motor can drive the sealing top plate to rotate on the inner side of the mounting top plate through the rotating member.

[0012] Furthermore, the connecting device includes a mixing box fixedly connected to the injection head, a servo motor is fixedly installed in the middle of the side of the mixing box, the output end of the servo motor is inserted into the middle of the inner cavity of the mixing box and a stirring fan blade is fixedly installed, and a feed pipe is fixedly installed above the same side of the mixing box as the servo motor.

[0013] By adopting the above technical solution, the operator can pour the grouting raw materials into the interior of the mixing box through the feed pipe, and the servo motor can drive the stirring blades to rotate, so that the grouting raw materials can be sent into the interior of the device outer shell through the injection head and the connecting pipe.

[0014] Furthermore, the rotary spray port is an "L"-shaped arc-shaped slotted structure.

[0015] By adopting the above technical solution, the slurry can be sprayed out from the side of the annular spray ring and sprayed to the periphery at a uniform speed, so that the spraying can be more uniform and the flow effect of the slurry can be increased.

[0016] Furthermore, a circular slot slightly larger than the outer shell of the device is opened in the middle of the supporting base plate, and a cylindrical through slot corresponding to the transmission fan blade is opened in the middle of the rotating connecting piece.

[0017] By adopting the above technical solution, when the transmission fan blades rotate inside the rotating connection part, the grouting raw materials will be pressurized and transported synchronously, so that they can be rotated and sprayed out from the position of the rotating spraying port.

[0018] Furthermore, a transverse square metal piece is provided at the lower end of the rotating head.

[0019] By adopting the above technical solution, when the rotating head rotates, the square piece can dig up the soil in contact with the rotating head.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] In the utility model, by providing a structure with an annular spray ring and transmission blades, during the grouting process of the entire device, the slurry is pressurized by the transmission blades and enters the drilled hole from the side as the annular spray ring rotates, so that the internal slurry presents a certain flow state. When the slurry flows, the pressure inside the borehole changes dynamically, making it easier for the slurry to fill the gaps in the soil layer of the borehole, thereby achieving a better grouting reinforcement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a mixing box of the utility model;

[0024] Figure 3 This is a structural cross-sectional view of a mixing box of the utility model;

[0025] Figure 4 This is a disassembled diagram of the transmission shaft structure of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the rotating part of the utility model.

[0027] Explanation of the numbers in the figure: 1. Device connector; 101. Rotating member; 102. Mounting slot; 2. Mounting top plate; 3. Device outer shell; 4. Stabilizing ring; 5. Stabilizing rod; 6. Support bottom plate; 7. Rotating connector; 8. Annular spray ring; 9. Rotating head; 10. Stepping motor; 11. Connecting pipe; 12. Injection head; 13. Mixing box; 14. Feeding pipe; 15. Stirring blades; 16. Servo motor; 17. Rotating spray port; 18. Sealing top plate; 1801. Limiting member; 19. Transmission shaft; 20. Transmission blades. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1 - Figure 5 As shown, the embodiment of the utility model provides: comprising a mounting top plate 2, a device outer shell 3 is fixedly mounted on the lower end of the mounting top plate 2, a stabilizing ring 4 is fixedly mounted on the outer side of the middle part of the device outer shell 3, a plurality of stabilizing rods 5 are fixedly mounted on the upper end of the stabilizing ring 4 at the periphery of the device outer shell 3, and a supporting bottom plate 6 is fixedly mounted on the lower side of the stabilizing rod 5;

[0030] A device connecting member 1 is fixedly installed on the upper side of the installation top plate 2, a rotating member 101 is rotatably installed in the middle of the lower side of the device connecting member 1, a stepping motor 10 is fixedly installed on the upper end of the device connecting member 1, a sealing top plate 18 is rotatably installed in the middle of the installation top plate 2, a transmission shaft 19 is fixedly installed in the middle of the lower side of the sealing top plate 18, a transmission fan blade 20 is fixedly installed on the outer periphery of the transmission shaft 19, an annular spray ring 8 is fixedly installed on the lower end of the transmission shaft 19, four rotating spray ports 17 are annularly opened at the upper end of the annular spray ring 8, a rotating head 9 is fixedly installed on the lower side of the annular spray ring 8, and a rotating connecting member 7 is fixedly installed on the lower end of the device outer shell 3;

[0031] A connecting pipe 11 is fixedly installed on the upper side of the device outer shell 3, an injection head 12 is fixedly installed on the side of the connecting pipe 11 away from the device outer shell 3, and a connecting device is fixedly installed on the end of the injection head 12 away from the connecting pipe 11;

[0032] A circular groove is provided on the upper middle side of the device connecting member 1, and the output shaft of the stepper motor 10 passes through the circular groove provided in the device connecting member 1 and is fixedly connected to the rotating member 101, so that the output shaft of the stepper motor 10 can drive the rotating member 101 to rotate;

[0033] A limit piece 1801 is fixedly installed in the middle of the upper side of the sealing top plate 18, and a clamping groove 102 corresponding to the limit piece 1801 is opened on the lower side of the rotating member 101. The rotating member 101 is clamped and connected with the limit piece 1801 through the clamping groove 102. The stepping motor 10 can drive the sealing top plate 18 to rotate on the inner side of the mounting top plate 2 through the rotating member 101;

[0034] The connecting device includes a mixing box 13 fixedly connected to the injection head 12, a servo motor 16 is fixedly installed in the middle of the side of the mixing box 13, and a stirring blade 15 is fixedly installed in the middle of the inner cavity of the mixing box 13 at the output end of the servo motor 16. A feeding pipe 14 is fixedly installed above the mixing box 13 on the same side as the servo motor 16. The operator can pour the grouting raw material into the interior of the mixing box 13 through the feeding pipe 14. The servo motor 16 can drive the stirring blade 15 to rotate, so that the grouting raw material can be sent into the interior of the device outer shell 3 through the injection head 12 and the connecting pipe 11;

[0035] The rotating spray port 17 is an "L"-shaped arc slot structure, and the slurry rotates from the side of the annular spray ring 8 to the periphery at a uniform speed, so that the spraying can be more uniform and the flow effect of the slurry is increased;

[0036] A circular slot slightly larger than the outer shell 3 of the device is opened in the middle of the support bottom plate 6, and a cylindrical through slot corresponding to the transmission blade 20 is opened in the middle of the rotating connection 7. When the transmission blade 20 rotates inside the rotating connection 7, the grouting raw material is pressurized and transported synchronously, so that it can be rotated and sprayed out from the position of the rotating spraying port 17;

[0037] A transverse square metal piece is provided at the lower end of the rotating head 9 , and when the rotating head 9 rotates, the square piece can dig up the soil in contact with the rotating head 9 .

[0038] Working principle of the utility model: the installer inserts the rotating connecting member 7 into the borehole, the supporting bottom plate 6 contacts the ground and plays a certain supporting role for the whole, the slurry to be filled is poured into the mixing box 13 from the feeding pipe 14, the servo motor 16 is started to drive the stirring blade 15 to rotate, and the slurry is sent into the outer shell 3 of the device through the injection head 12 and the injection head 12, the stepper motor 10 is started, the stepper motor 10 drives the rotating member 101 to rotate, the card slot 102 on the lower side of the rotating member 101 is card-connected with the limit member 1801, and the sealing top plate 1 8 is rotatably arranged inside the mounting top plate 2, so that when the stepper motor 10 is started, the stepper motor 10 drives the transmission shaft 19 on the lower side to rotate through the sealing top plate 18. When the transmission shaft 19 rotates, the slurry entering the inside of the device outer shell 3 will be pumped downward together, and the slurry will eventually be sprayed out from the rotating spray port 17 opened in the annular spray ring 8 to the periphery, so that the internal slurry presents a certain flow state. When the slurry flows, the pressure inside the borehole changes dynamically, making it easier for the slurry to fill the gaps in the borehole soil layer, thereby achieving a better grouting reinforcement effect.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A rotary grouting composite foundation reinforcement device, comprising a mounting top plate (2), characterized in that: The lower end of the mounting top plate (2) is fixedly mounted with a device outer shell (3); a stabilizing ring (4) is fixedly mounted on the outer side of the middle portion of the device outer shell (3); the upper end of the stabilizing ring (4) is located at the periphery of the device outer shell (3) and is fixedly mounted with a plurality of stabilizing rods (5); a supporting bottom plate (6) is fixedly mounted on the lower side of the stabilizing rods (5); A device connecting member (1) is fixedly mounted on the upper side of the mounting top plate (2), a rotating member (101) is rotatably mounted on the middle part of the lower side of the device connecting member (1), a stepping motor (10) is fixedly mounted on the upper end of the device connecting member (1), a sealing top plate (18) is rotatably mounted on the middle part of the mounting top plate (2), a transmission shaft (19) is fixedly mounted on the middle part of the lower side of the sealing top plate (18), a transmission fan blade (20) is fixedly mounted on the outer periphery of the transmission shaft (19), an annular spray ring (8) is fixedly mounted on the lower end of the transmission shaft (19), four rotating spray ports (17) are annularly opened on the upper end of the annular spray ring (8), a rotating head (9) is fixedly mounted on the lower side of the annular spray ring (8), and a rotating connecting member (7) is fixedly mounted on the lower end of the device outer shell (3); A connecting pipe (11) is fixedly mounted on the upper side of the outer shell (3) of the device, an injection head (12) is fixedly mounted on the side of the connecting pipe (11) away from the outer shell (3) of the device, and a connecting device is fixedly mounted on the end of the injection head (12) away from the connecting pipe (11).

2. The rotary grouting composite foundation reinforcement equipment according to claim 1 is characterized in that: A circular groove is provided on the upper middle side of the device connecting member (1), and the output shaft of the stepping motor (10) passes through the circular groove provided in the device connecting member (1) and is fixedly connected to the rotating member (101).

3. The rotary grouting composite foundation reinforcement equipment according to claim 1 is characterized in that: A limiting member (1801) is fixedly mounted on the middle portion of the upper side of the sealing top plate (18), and a clamping groove (102) corresponding to the limiting member (1801) is provided on the lower side of the rotating member (101).

4. The rotary grouting composite foundation reinforcement equipment according to claim 1, characterized in that: The connecting device comprises a mixing box (13) fixedly connected to the injection head (12), a servo motor (16) fixedly installed in the middle of the side of the mixing box (13), an output end of the servo motor (16) is inserted into the middle of the inner cavity of the mixing box (13) and a stirring blade (15) is fixedly installed, and a feed pipe (14) is fixedly installed above the same side of the mixing box (13) as the servo motor (16).

5. The rotary grouting composite foundation reinforcement equipment according to claim 1, characterized in that: The rotary spray port (17) is an "L"-shaped arc-shaped slotted structure.

6. The rotary grouting composite foundation reinforcement equipment according to claim 1, characterized in that: A circular slot slightly larger than the outer shell (3) of the device is opened in the middle of the support base plate (6), and a cylindrical through slot corresponding to the transmission blade (20) is opened in the middle of the rotary connecting member (7).

7. The rotary grouting composite foundation reinforcement equipment according to claim 1, characterized in that: The lower end of the rotating head (9) is provided with a transverse square metal piece.

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