Grouting device for foundation treatment

Abstract

The utility model relates to the technical field of foundation treatment, and discloses a grouting device for foundation treatment, which comprises a lifting trolley, a lifting plate, a hollow shaft, a first cylinder, a drill bit, a spline sleeve, a hollow spline shaft, a second cylinder and a rotary joint. During use, after the hollow shaft is driven by external force to rotate, the first cylinder and the second cylinder can be driven to rotate synchronously. And then the first cylinder and the second cylinder can be driven by the lifting end of the lifting trolley to drill into the ground. The electric push rod is controlled to work, the bending plate can be driven to move, then the hollow spline shaft is driven to slide, finally the second cylinder is driven to slide, and finally the second grouting holes and the first grouting holes are staggered or opposite. And in the dislocation state, the sealing effect can be achieved, and in the process of drilling into the ground, soil, gravel and the like are prevented from entering the second cylinder to cause blockage. And in a relative state, the slurry can permeate into the soil and the gravel through the slurry, so that a reinforcing effect is achieved.

Description

Technical Field

[0001] This application relates to the field of foundation treatment technology, and in particular to a grouting device for foundation treatment. Background Technology

[0002] A related technology (publication number: CN220433611U) discloses a grouting device for foundation engineering, including a base plate. A grout tank and a fixing plate are arranged on the upper surface of the base plate. A threaded rod is arranged on the inner side of the fixing plate. A primary motor is arranged at the upper end of the threaded rod. An mounting plate is arranged on one side of the threaded rod. A secondary motor is arranged on the upper surface of the mounting plate. A drill rod is arranged at the lower end of the secondary motor. A movable groove and a breaking block are arranged on the outer surface of the drill rod. A drill bit is arranged at the bottom of the drill rod. A grouting hole is opened on the outer surface of the drill bit. A grouting pipe is arranged inside the drill rod. A connecting groove is opened on one side of the grouting pipe. A guide pipe is arranged between the connecting groove and the grout tank.

[0003] In the process of implementing the technical solution disclosed herein, at least the following problems were found in the related technologies:

[0004] This foundation grouting device drills holes in the foundation using a drill bit at the bottom of the drill rod and a crushing block on the outside. Grouting is then performed through grouting holes on the surface of the drill bit, integrating drilling and grouting into a single device, thus improving grouting efficiency. However, during drilling into the ground, soil and gravel can easily enter the interior of the drill rod through the grouting holes, causing blockages. Furthermore, the guide tube moves with the drill rod during rotation, leading to entanglement problems.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] To provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. This summary is not a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these technical solutions, but rather serves as an introduction to the detailed explanations that follow.

[0007] This disclosure provides a grouting device for foundation treatment to solve the problems existing in the background art.

[0008] In some technical solutions, the grouting device for foundation treatment includes: a lifting trolley, including a lifting end capable of lifting; a lifting plate installed on the lifting end of the lifting trolley; a hollow shaft rotatably mounted on the lifting plate along the height direction of the trolley; a first cylinder installed at the bottom end of the hollow shaft along the height direction of the trolley and coaxially distributed with the hollow shaft, the first cylinder including a plurality of first grouting holes formed on its sidewall; a drill bit installed at the bottom end of the first cylinder; a splined sleeve installed inside the hollow shaft; a hollow splined shaft slidably passing through the splined sleeve; and a second cylinder along the height direction of the trolley. The trolley is mounted at the bottom of the hollow spline shaft along its height. The outer side of the second cylinder is in contact with the inner side of the first cylinder. The second cylinder includes a plurality of second grouting holes formed on its sidewall, with each of the second grouting holes facing the first grouting holes. A rotary joint is mounted at the top of the hollow spline shaft for connecting to the discharge port of the grouting pump, the suction port of which is used to draw grout. The hollow shaft can be controlled to rotate, thereby driving the first cylinder and the second cylinder to rotate synchronously. The hollow spline shaft can also be controlled to slide, thereby causing the plurality of first grouting holes and the plurality of second grouting holes to be staggered.

[0009] Optionally, it further includes: a motor mounted on the lifting plate; a driving bevel gear mounted on the rotating end of the motor; and a driven bevel gear fitted onto the top end of the hollow shaft and meshing with the driving bevel gear; wherein the number of teeth of the driving bevel gear is less than the number of teeth of the driven bevel gear.

[0010] Optionally, it further includes: an electric push rod, installed on the lifting plate along the height direction of the trolley; a bending plate, installed on the moving end of the electric push rod, and rotatably fitted onto the top end of the hollow spline shaft; wherein the grouting pump is installed on the bending plate.

[0011] Optionally, it further includes: a deep groove ball bearing, installed between the bent plate and the hollow spline shaft; wherein the outer ring of the deep groove ball bearing abuts against the bent plate, and the inner ring of the deep groove ball bearing abuts against the hollow spline shaft.

[0012] Optionally, it further includes: elastic retaining rings, which are fitted onto the bending plate and located on both sides of the deep groove ball bearing along the axial direction of the hollow spline shaft, with both elastic retaining rings abutting against the outer ring of the deep groove ball bearing.

[0013] Optionally, it further includes: retaining rings, fitted onto the hollow spline shaft, located on both sides of the deep groove ball bearing along the axial direction of the hollow spline shaft, with both retaining rings abutting against the inner ring of the deep groove ball bearing.

[0014] Optionally, it may also include a reinforcing plate installed at the bend of the bent plate.

[0015] Optionally, it further includes: a bearing housing, mounted on the lifting plate and sleeved on the hollow shaft; and an angular contact ball bearing, mounted opposite to the hollow shaft and the bearing housing.

[0016] Optionally, it also includes: a helical blade, mounted on the outer wall of the first cylinder.

[0017] The grouting device for foundation treatment provided in this disclosure can achieve the following technical effects:

[0018] This disclosure provides a grouting device for foundation treatment, comprising a lifting trolley, a lifting plate, a hollow shaft, a first cylinder, a drill bit, a splined sleeve, a hollow splined shaft, a second cylinder, and a rotary joint. The lifting trolley includes a lifting end capable of vertical movement. The lifting plate is mounted on the lifting end of the lifting trolley and rises or falls under the drive of the lifting end. The hollow shaft is rotatably mounted on the lifting plate along the height direction of the trolley and can rotate relative to the lifting plate. The first cylinder is mounted on the bottom end of the hollow shaft along the height direction of the trolley and is coaxially distributed with the hollow shaft, rotating under the drive of the first cylinder. The first cylinder includes multiple first grouting holes formed on its sidewall, all for discharging grout. The drill bit is mounted on the bottom end of the first cylinder for drilling into the ground. The splined sleeve is installed inside the hollow shaft for supporting and mounting the slidable hollow shaft. A hollow splined shaft slidably passes through a splined sleeve, allowing it to slide relative to the sleeve and rotate under its influence. A second cylinder, along the height of the trolley, is mounted at the bottom of the hollow splined shaft and rotates under its influence. The outer surface of the second cylinder fits against the inner surface of the first cylinder to improve sealing. The second cylinder includes multiple second grouting holes on its sidewalls, each corresponding to a number of first grouting holes and used to discharge grout. A rotary joint is mounted at the top of the hollow splined shaft and connects to the discharge port of the grouting pump to input grout from stationary equipment into the rotating pipeline, preventing entanglement. The pump's suction port can be connected to an external pipeline, which is then inserted into the grout pool to draw grout. The hollow shaft can be controlled to rotate, causing the first and second cylinders to rotate synchronously. The hollow splined shaft can also be controlled to slide, allowing the multiple first and second grouting holes to be staggered.

[0019] In operation, the hollow shaft rotates under external force, which in turn drives the first cylinder to rotate, and then the drill bit. Simultaneously, the spline sleeve rotates, which in turn drives the hollow spline shaft to rotate, ultimately causing the second cylinder to rotate synchronously. Then, driven by the lifting end of the lifting trolley, the lifting plate continuously descends, eventually driving the first and second cylinders into the ground. Controlling the electric push rod causes the bending plate to move up and down, which in turn causes the hollow spline shaft to slide relative to the spline sleeve. This then causes the second cylinder to slide relative to the first cylinder, ultimately causing the multiple second grouting holes to be misaligned or aligned with the multiple first grouting holes. When misaligned, this provides a sealing effect, preventing soil and gravel from entering the second cylinder and causing blockages during drilling. When aligned, controlling the injection pump continuously draws in grout and delivers it to the interior of the second cylinder through the rotary joint and the hollow spline shaft. The grout then seeps into the soil and gravel through multiple second grouting holes and multiple first grouting holes, thus reinforcing the soil.

[0020] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0022] Figure 1 This is a cross-sectional structural schematic diagram of a grouting device for foundation treatment provided in an embodiment of this disclosure;

[0023] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 yes Figure 1 Enlarged structural diagram at point B;

[0025] Figure 4 This is a front view structural schematic diagram of a grouting device for foundation treatment provided in an embodiment of this disclosure;

[0026] Figure 5 yes Figure 4 A magnified structural diagram at point C.

[0027] Figure label:

[0028] 1. Lifting trolley; 2. Lifting plate; 3. Hollow shaft; 4. First cylinder; 5. Drill bit; 6. Splined sleeve; 7. Hollow splined shaft; 8. Second cylinder; 9. Rotary joint; 10. Motor; 11. Electric push rod; 12. Bending plate; 13. Deep groove ball bearing; 14. Reinforcing plate; 15. Bearing housing; 16. Angular contact ball bearing; 17. Helical blade. Detailed Implementation

[0029] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0030] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0032] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0033] Unless otherwise stated, the term "multiple" means two or more.

[0034] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0035] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0037] Combination Figures 1 to 5 As shown, this disclosure provides a grouting device for foundation treatment, including a lifting trolley 1, a lifting plate 2, a hollow shaft 3, a first cylinder 4, a drill bit 5, a splined sleeve 6, a hollow splined shaft 7, a second cylinder 8, and a rotary joint 9. The lifting trolley 1 includes a lifting end capable of lifting. The lifting plate 2 is installed at the lifting end of the lifting trolley 1 and rises or falls under the drive of the lifting end of the lifting trolley 1. The hollow shaft 3 is rotatably installed on the lifting plate 2 along the height direction of the trolley and can rotate relative to the lifting plate 2. The first cylinder 4 is installed at the bottom end of the hollow shaft 3 along the height direction of the trolley and is coaxially distributed with the hollow shaft 3, rotating under the drive of the first cylinder 4. The first cylinder 4 includes multiple first grouting holes formed on its sidewall, all of which are used to discharge grout. The drill bit 5 is installed at the bottom end of the first cylinder 4 for drilling into the ground. The splined sleeve 6 is installed inside the hollow shaft 3 for supporting and installing the slidable hollow shaft 3. A hollow splined shaft 7 is slidably inserted into a splined sleeve 6, allowing it to slide relative to the splined sleeve 6 and rotate under the drive of the splined sleeve 6. A second cylinder 8 is installed at the bottom end of the hollow splined shaft 7 along the height direction of the trolley and rotates under the drive of the hollow splined shaft 7. The outer surface of the second cylinder 8 fits against the inner surface of the first cylinder 4 to improve sealing. The second cylinder 8 includes multiple second grouting holes formed on its sidewall, each corresponding to a multiple first grouting holes, and all used to discharge grout. A rotary joint 9 is installed at the top of the hollow splined shaft 7 and is used to connect to the discharge port of the grouting pump, allowing grout to be input from stationary equipment into the rotating pipeline to avoid entanglement. The suction port of the grouting pump can be connected to an external pipeline, which can then be inserted into the grout pool to draw grout. The hollow shaft 3 can be rotated in a controlled manner to drive the first cylinder 4 and the second cylinder 8 to rotate synchronously, and the hollow spline shaft 7 can be slid in a controlled manner to make the multiple first grouting holes and multiple second grouting holes staggered.

[0038] This embodiment of the grouting device for foundation treatment provides a method where, driven by external force, the hollow shaft 3 rotates, which in turn drives the first cylinder 4 to rotate, and then the drill bit 5 to rotate. Simultaneously, the spline sleeve 6 rotates, which in turn drives the hollow spline shaft 7 to rotate, ultimately causing the second cylinder 8 to rotate synchronously. Then, driven by the lifting end of the lifting trolley 1, the lifting plate 2 continuously descends, ultimately driving the first cylinder 4 and the second cylinder 8 into the ground. Controlling the electric push rod 11 causes the bending plate 12 to move up and down, thereby causing the hollow spline shaft 7 to slide relative to the spline sleeve 6. This then causes the second cylinder 8 to slide relative to the first cylinder 4, ultimately causing multiple second grouting holes to be misaligned or aligned with multiple first grouting holes. When in a misaligned state, it provides a sealing effect, thus preventing soil and gravel from entering the interior of the second cylinder 8 and causing blockage during drilling into the ground. When in a relative state, the injection pump is operated to continuously draw in grout, which is then transported to the interior of the second cylinder 8 via the rotary joint 9 and the hollow spline shaft 7. The grout then seeps into the soil and gravel through multiple second injection holes and multiple first injection holes, thus reinforcing the soil.

[0039] Optionally, combined Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the system also includes a motor 10, a driving bevel gear, and a driven bevel gear. The motor 10 is mounted on the lifting plate 2 to provide driving force for rotational movement. The driving bevel gear is mounted on the rotating end of the motor 10 and rotates under the drive of the motor 10. The driven bevel gear is fitted onto the top of the hollow shaft 3 to drive the hollow shaft 3 to rotate. The driven bevel gear meshes with the driving bevel gear, jointly transmitting driving force and changing the direction of the force. The driving bevel gear has fewer teeth than the driven bevel gear.

[0040] In this embodiment, controlling the motor 10 to operate drives the driving bevel gear to rotate. Through inter-tooth meshing, the driven bevel gear rotates. This, in turn, drives the hollow shaft 3 to rotate, ultimately achieving synchronous rotation of the first cylinder 4 and the second cylinder 8. Furthermore, the design of having fewer teeth on the driving bevel gear than on the driven bevel gear reduces the rotational speed and increases the output torque.

[0041] Optionally, combined Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, it also includes an electric push rod 11 and a bending plate 12. The electric push rod 11 is mounted on the lifting plate 2 along the height direction of the trolley to provide driving force for linear movement. The bending plate 12 is mounted on the moving end of the electric push rod 11 and moves under the drive of the electric push rod 11. The bending plate 12 is rotatably fitted onto the top of the hollow spline shaft 7, and the two can rotate relative to each other to avoid stiffness during movement. The grouting pump is mounted on the bending plate 12.

[0042] In this embodiment, controlling the electric push rod 11 to work can drive the bending plate 12 to move, which in turn drives the hollow spline shaft 7 to slide, ultimately causing the multiple second grouting holes to be misaligned or opposite to the multiple first grouting holes.

[0043] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a deep groove ball bearing 13. The deep groove ball bearing 13 is installed between the bent plate 12 and the hollow spline shaft 7. The outer ring of the deep groove ball bearing 13 abuts against the bent plate 12, and the inner ring of the deep groove ball bearing 13 abuts against the hollow spline shaft 7.

[0044] In this embodiment, the deep groove ball bearing 13 is used to reduce the friction between the bent plate 12 and the hollow spline shaft 7, thereby reducing wear and damage.

[0045] Optionally, combined Figure 1 and Figure 2 As shown, it also includes elastic retaining rings. The elastic retaining rings are fitted onto the bending plate 12, along the axial direction of the hollow spline shaft 7, and located on both sides of the deep groove ball bearing 13. Both elastic retaining rings abut against the outer ring of the deep groove ball bearing 13.

[0046] In this embodiment, both elastic retaining rings are used for axial positioning to determine the relative positions of the bending plate 12 and the deep groove ball bearing 13.

[0047] Optionally, combined Figure 1 and Figure 5 As shown, it also includes retaining rings. The retaining rings are fitted onto the hollow spline shaft 7 and are located on both sides of the deep groove ball bearing 13 along the axial direction of the hollow spline shaft 7. Both retaining rings abut against the inner ring of the deep groove ball bearing 13.

[0048] In this embodiment, both retaining rings are used for axial positioning to determine the relative positions of the hollow spline shaft 7 and the deep groove ball bearing 13.

[0049] Optionally, combined Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it also includes a reinforcing plate 14. The reinforcing plate 14 is installed at the bend of the bent plate 12.

[0050] In this embodiment, the reinforcing plate 14 is used to improve the structural strength of the bent plate 12 to prevent the bent plate 12 from breaking or deforming at the bend.

[0051] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a bearing housing 15 and an angular contact ball bearing 16. The bearing housing 15 is mounted on the lifting plate 2 and sleeved on the hollow shaft 3. The angular contact ball bearing 16 is mounted opposite to the hollow shaft 3 and the bearing housing 15.

[0052] In this embodiment of the present disclosure, the bearing housing 15 is used to mount the opposing angular contact ball bearing 16, which is used to bear the axial and radial forces on the hollow shaft 3 and reduce the friction force on the hollow shaft 3.

[0053] Optionally, combined Figure 1 , Figure 3 and Figure 4 As shown, it also includes a helical blade 17. The helical blade 17 is mounted on the outer wall of the first cylinder 4.

[0054] In this embodiment of the present disclosure, the helical blade 17 rotates under the drive of the first cylinder 4 to facilitate drilling into the ground.

[0055] The foregoing description and accompanying drawings have fully illustrated embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of this disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A grouting device for ground treatment, characterized by comprising: The utility model relates to a grouting device for tunneling machine, which comprises: a lifting trolley including a lifting end capable of lifting movement; a lifting plate installed on the lifting end of the lifting trolley; a hollow shaft rotatably installed on the lifting plate along the height direction of the trolley; a first cylinder coaxially arranged with the hollow shaft and installed at the bottom end of the hollow shaft along the height direction of the trolley, the first cylinder including a plurality of first grouting holes formed in the side wall thereof; a drill bit installed at the bottom end of the first cylinder; a spline sleeve installed inside the hollow shaft; a hollow spline shaft slidably arranged in the spline sleeve; a second cylinder installed at the bottom end of the hollow spline shaft along the height direction of the trolley, the outer side of the second cylinder being in abutment with the inner side of the first cylinder, the second cylinder including a plurality of second grouting holes formed in the side wall thereof, the plurality of second grouting holes being respectively opposite to the plurality of first grouting holes; a rotary joint installed at the top end of the hollow spline shaft and connected to the liquid outlet of a grouting pump, the liquid inlet of the grouting pump being used for pumping grout; wherein the hollow shaft is controlled to rotate to drive the first cylinder and the second cylinder to rotate synchronously, and the hollow spline shaft is controlled to slide to make the plurality of first grouting holes and the plurality of second grouting holes distributed in a staggered manner.

2. The grouting device for ground treatment according to claim 1, wherein Further comprising: a motor installed on the lifting plate; a driving bevel gear installed at the rotating end of the motor; a driven bevel gear sleeved on the top end of the hollow shaft and engaged with the driving bevel gear; wherein the number of teeth of the driving bevel gear is less than the number of teeth of the driven bevel gear.

3. The grouting device for ground treatment according to claim 1, wherein Further comprising: an electric push rod installed on the lifting plate along the height direction of the trolley; a bent plate installed at the moving end of the electric push rod and rotatably sleeved on the top end of the hollow spline shaft; wherein the grouting pump is installed on the bent plate.

4. The grouting device for ground treatment according to claim 3, wherein Further comprising: a deep groove ball bearing installed between the bent plate and the hollow spline shaft; wherein the outer ring of the deep groove ball bearing is in abutment with the bent plate, and the inner ring of the deep groove ball bearing is in abutment with the hollow spline shaft.

5. The grouting device for ground treatment according to claim 4, wherein Further comprising: a resilient clasp sleeved on the bent plate and located on both sides of the deep groove ball bearing along the axial direction of the hollow spline shaft, both the resilient clamps being in abutment with the outer ring of the deep groove ball bearing.

6. The grouting device for ground treatment according to claim 4, wherein Further comprising: a fixing ring sleeved on the hollow spline shaft and located on both sides of the deep groove ball bearing along the axial direction of the hollow spline shaft, both the fixing rings being in abutment with the inner ring of the deep groove ball bearing.

7. The grouting device for ground treatment according to claim 3, wherein Further comprising: a reinforcing plate installed at the bent portion of the bent plate.

8. The grouting device for ground treatment according to any one of claims 1 to 7, characterized in that, Further comprising: a bearing seat installed on the lifting plate and sleeved on the hollow shaft; an angular contact ball bearing oppositely installed between the hollow shaft and the bearing seat.

9. The grouting device for ground treatment according to any one of claims 1 to 7, characterized in that, Further comprising: a helical blade installed on the outer wall of the first cylinder.

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