A base hole grouting device

Abstract

The present invention relates to the technical field of drilling and grouting equipment, and discloses a base hole grouting device, which includes a drilling and grouting machine. A grouting pipe is installed on the drilling and grouting machine. A driving box is arranged above the outer surface of the grouting pipe, and a driving mechanism for driving the pressing mechanism to operate is arranged inside the driving box; a pressing mechanism for pressing the injected mud is arranged at the lower end of the outer surface of the grouting pipe; a through hole is formed in the lower surface of the driving box, and the lower end of the driving mechanism is connected to the pressing mechanism through the through hole; The present invention effectively solves the problem that when grouting, the mud contains bubbles during the transportation process. Excessive bubbles in the mud will cause the solidified mud to contain too many bubbles, resulting in poor quality. Moreover, if the vibration method is used to remove bubbles, the sand and gravel in the upper part of the mud will sink to the bottom, making the solidified mud in the upper part of the base hole relatively fragile.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling and grouting equipment, and particularly relates to a base hole grouting equipment. Background Art

[0002] In construction projects, the weight of buildings basically needs to be borne by the foundation. When the geological conditions of the soil layer are good, natural foundations can be used. Under poor geological conditions, artificial foundation reinforcement is required. Among them, foundation grouting is a common foundation reinforcement method. During construction, holes are first drilled at designated positions on the foundation, and then the prepared slurry is injected into the formation through a grouting pipe to combine with the soil, thereby improving the soil strength.

[0003] Currently, when grouting a base hole, a drilling and grouting machine is used to drill the hole first and then grout it. However, when grouting, the slurry contains air bubbles during transportation. Excessive air bubbles in the slurry will cause the solidified slurry to contain too many air bubbles, resulting in poor quality. Moreover, if the vibration method is used to remove air bubbles, the sand and gravel above the slurry will sink to the bottom, making the solidified slurry in the upper part of the base hole relatively fragile.

[0004] Therefore, it is very necessary to design a base hole grouting equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a base hole grouting equipment to solve the problems mentioned in the above background art.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A base hole grouting equipment includes a drilling and grouting machine. A grouting pipe is installed on the drilling and grouting machine. A driving box is arranged above the outer surface of the grouting pipe. A driving mechanism for driving the pressing mechanism to operate is arranged in the driving box;

[0008] A pressing mechanism for pressing the injected slurry is arranged at the lower end of the outer surface of the grouting pipe;

[0009] A through hole is opened on the lower surface of the driving box. The lower end of the driving mechanism is connected to the pressing mechanism through the through hole.

[0010] Preferably, a first gear is arranged above the outer surface of the grouting pipe. The first gear is located in the driving box and is connected to the driving mechanism. The through hole on the driving box is a strip-shaped hole. The driving box is connected to the grouting pipe through a bearing.

[0011] Preferably, the driving mechanism includes a first fixing plate, a support plate, and a reciprocating plate. A cylindrical pin is rotatably arranged inside the lower end of the support plate. A rotating plate is arranged at the inner end of the cylindrical pin, and a rotating plate is arranged at the outer end of the cylindrical pin. Two convex plates extend from the rotating plate. Pulley blocks are connected to the outer sides of the two convex plates on the rotating plate. A first moving plate is arranged in the middle of the outer surface of the reciprocating plate. A connecting rod is connected to the lower end of the first moving plate, and a reciprocating rod is connected to the lower end of the connecting rod. A first moving groove is formed in the middle of the inner surface of the first fixing plate. The driving mechanism converts the force that drives the drilling and grouting machine to drive the grouting pipe to rotate into an up-and-down moving force, thereby driving the pressing mechanism to operate.

[0012] Preferably, the first moving plate is movably arranged in the first moving groove. A set of guiding plates are arranged at the corners of the inner surface of the reciprocating plate. The pulley block on the protruding end of the rotating plate is located between a set of guiding plates. Each time the rotating plate rotates, the pulley block can rotate within the corresponding set of guiding plates, thereby being able to push the reciprocating plate to move up and down.

[0013] Preferably, a plurality of meshing columns are equidistantly arranged on the outer surface of the rotating plate. The rotating plate is meshed and connected to a first gear through a plurality of meshing columns. The upper end of the support plate is connected to the upper surface of the driving box. The connecting rod is located in the through hole on the driving box. The first fixing plate is connected to the inner surface of the driving box. The lower end of the reciprocating rod is connected to the pressing mechanism. The driving box protects the overall mechanism of the driving mechanism, preventing it from being easily damaged due to external collisions.

[0014] Preferably, the pressing mechanism includes a lower pressing ring. A plurality of pulling mechanisms and a plurality of moving rods are equidistantly arranged on the lower surface of the lower pressing ring. The lower ends of the plurality of pulling mechanisms are connected to a fixing ring. A spring groove is formed on the upper surface of the fixing ring. A spring is arranged in the spring groove. The upper end of the spring is provided with a pressing ring. A plurality of fixing blocks are equidistantly arranged on the outer surface of the pressing ring. A pressing rod is arranged on the lower surface of each of the plurality of fixing blocks. The lower ends of the plurality of pressing rods are connected to a moving ring. A plurality of closing mechanisms are equidistantly arranged on the lower surface of the moving ring. After each pressing, the spring rebounds and resets to drive the moving ring and the closing mechanism to reset, thereby enabling the overall pressing mechanism to reset.

[0015] Preferably, the upper surface of the lower pressing ring is connected to the lower end of the reciprocating rod. A plurality of sets of rectangular grooves are equidistantly formed on the outer surfaces of the moving ring and the fixing ring. A plurality of pushing holes and round holes are equidistantly formed on the upper surface of the fixing ring. The plurality of pressing rods are located in the round holes. The plurality of closing mechanisms are connected to the plurality of pulling mechanisms. The closing mechanism is driven to act through the pulling mechanism. The reciprocating rod that moves up and down can drive the lower pressing ring to move up and down, thereby driving the overall pressing mechanism to operate.

[0016] Preferably, the pulling mechanism includes a first push rod, a second rack, and a second fixing plate. The first push rod is provided with first racks on both the left and right sides. Two second gears are meshed with the two first racks respectively. There are two second racks and two fixing plates respectively. The two second racks are meshed and connected with the two second gears. Moving grooves are respectively formed on the inner surfaces of the two fixing plates. Mobile ends protrude from the outer surfaces of the two second racks. The two second racks are respectively movably arranged in the two moving grooves through the mobile ends. Hinge blocks are respectively arranged at the lower ends of the two second racks. The two hinge blocks are hinged to the closing mechanism. Through the pulling mechanism, multiple pressing plates can be pulled to rotate and close together. By closing the multiple pressing plates, a circular pressing plate 481 is formed, so as to press the slurry in the base hole.

[0017] Preferably, the lower ends of the two fixing plates are connected to the fixing ring. The first push rod is vertically corresponding to the pushing hole. The fixing ring is connected to the grouting pipe through a bearing.

[0018] Preferably, the closing mechanism includes a hinge plate and a pressing plate. The hinge plate and the pressing plate are hinged. Two second push rods are arranged on the upper surface of the hinge plate. Two hinge blocks are arranged on the inner surface of the pressing plate. Two hinge rods are respectively hinged to the two hinge blocks. The upper ends of the two hinge rods are respectively hinged to the two hinge blocks. The upper ends of the two second push rods are connected to the moving ring.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention drives the grouting pipe to perform grouting treatment through a drilling grouting machine. Through the provided pressing mechanism, the slurry injected each time can be pressed to remove air bubbles during grouting, so as to effectively remove the air bubbles in the slurry, and it will not cause sand and gravel to precipitate downward. And through pressing, the slurry can be compacted, so as to improve the density between the slurries, effectively improve the quality of the slurry after solidification and molding in the base hole, and through the provided driving mechanism, the drilling grouting machine can drive the pressing mechanism to operate, so as to compact and remove air bubbles from the slurry in the base hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2Separate view of the grouting pipe and the drilling grouting machine of the present invention;

[0024] Figure 3 Front surface cross-sectional view of the drive box of the present invention;

[0025] Figure 4 Separate view of the drive mechanism and the closing mechanism of the present invention;

[0026] Figure 5 Structural view of the drive mechanism of the present invention;

[0027] Figure 6 Exploded view of the structure of the drive mechanism of the present invention;

[0028] Figure 7 Structural view of the closing mechanism of the present invention;

[0029] Figure 8 Exploded view of the structure of the closing mechanism of the present invention;

[0030] Figure 9 Structural view of the pulling mechanism of the present invention;

[0031] Figure 10 Structural view of the pressing mechanism of the present invention;

[0032] Figure 11 Three-dimensional view of the fixing ring of the present invention.

[0033] Explanation of figure numbers: 1. Drilling grouting machine; 2. Grouting pipe; 3. Drive box; 4. Pressing mechanism; 41. Lower pressing ring; 42. Pulling mechanism; 421. Push rod 1; 422. Rack 1; 423. Fixed plate 2; 424. Rack 2; 425. Hinge block 1; 426. Gear 2; 43. Extrusion ring; 44. Spring; 45. Pressing rod; 46. Fixed ring; 461. Push hole; 462. Air outlet hole; 47. Moving ring; 48. Closing mechanism; 481. Pressing plate; 482. Hinge plate; 483. Push rod 2; 484. Hinge rod; 5. Drive mechanism; 51. Support plate; 52. Rotating plate; 53. Rotating plate; 54. Pulley block; 55. Reciprocating plate; 56. Guide plate; 57. Moving plate 1; 58. Fixed plate 1; 59. Connecting rod; 510. Reciprocating rod; 6. Gear 1. Embodiment

[0034] The present invention will be further described in detail below with reference to the accompanying drawings.

[0035] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious deformations. The basic principles of the present invention defined in the following description can be used in other implementation schemes, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present invention.

[0036] Those skilled in the art should understand that in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or position relationships shown in the drawings. It is only for the convenience of simplifying the description of the present invention, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be construed as limitations on the present invention.

[0037] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of one component can be one, while in other embodiments, the number of this component can be multiple. The term "one" should not be construed as a limitation on the quantity. Embodiment

[0038] Please refer to Figures 1-6 , a base hole grouting device, including a drilling grouting machine 1, a grouting pipe 2 is installed on the drilling grouting machine 1, a driving box 3 is arranged above the outer surface of the grouting pipe 2, and a driving mechanism 5 for driving the pressing mechanism 4 to operate is arranged in the driving box 3;

[0039] A pressing mechanism 4 for pressing the injected slurry is arranged at the lower end of the outer surface of the grouting pipe 2;

[0040] A through hole is opened on the lower surface of the driving box 3, and the lower end of the driving mechanism 5 is connected to the pressing mechanism 4 through the through hole.

[0041] A first gear 6 is arranged above the outer surface of the grouting pipe 2. The first gear 6 is located in the driving box 3 and is connected to the driving mechanism 5. The through hole on the driving box 3 is a strip-shaped hole, and the driving box 3 is connected to the grouting pipe 2 through a bearing.

[0042] The driving mechanism 5 includes a first fixing plate 58, a support plate 51 and a reciprocating plate 55. A cylindrical pin is rotatably arranged inside the lower end of the support plate 51. A rotating plate 52 is arranged at the inner end of the cylindrical pin, and a rotating plate 53 is arranged at the outer end of the cylindrical pin. Two convex plates extend from the rotating plate 53. A pulley block 54 is connected to the outer sides of the two convex plates on the rotating plate 53. In the middle of the outer surface of the reciprocating plate 55, a first moving plate 57 is arranged. The lower end of the first moving plate 57 is connected to a connecting rod 59, and the lower end of the connecting rod 59 is connected to a reciprocating rod 510. A first moving groove is formed in the middle of the inner surface of the first fixing plate 58. The driving mechanism 5 converts the force that drives the drilling and grouting machine 1 to drive the grouting pipe 2 to rotate into an up-and-down moving force, thereby driving the pressing mechanism 4 to operate.

[0043] The first moving plate 57 is movably arranged in the first moving groove. A set of guide plates 56 are arranged at the corners of the inner surface of the reciprocating plate 55. The pulley block 54 on the protruding end of the rotating plate 53 is located between a set of guide plates 56. Each time the rotating plate 53 rotates, the pulley block 54 can rotate within the corresponding set of guide plates 56, so as to be able to push the reciprocating plate 55 to move up and down.

[0044] A plurality of meshing columns are equidistantly arranged on the outer surface of the rotating plate 53. The rotating plate 53 is meshed and connected with a first gear 6 through the plurality of meshing columns. The upper end of the support plate 51 is connected to the upper surface of the driving box 3. The connecting rod 59 is located in the through hole on the driving box 3. The first fixing plate 58 is connected to the inner surface of the driving box 3. The lower end of the reciprocating rod 510 is connected to the pressing mechanism 4. The driving box 3 protects the overall mechanism of the driving mechanism 5 to prevent it from being easily damaged by external collisions.

[0045] When the present invention is in use, after drilling a base hole on the ground, the upper end of the grouting pipe 2 is connected to a mud conveying device through a pipeline. The lifting mechanism of the drilling and grouting machine 1 is started to make the drilling and grouting machine 1 move up and down, so that the lower end of the grouting pipe 2 is inserted into the base hole. The mud is conveyed to the grouting pipe 2 through the mud conveying device and then injected into the base hole. While injecting the mud into the base hole through the grouting pipe 2, the drilling and grouting machine 1 is started, so that the lifting mechanism of the drilling and grouting machine 1 drives the grouting pipe 2 to rise a small distance. After rising a certain distance, the injection of the mud is stopped. The drilling and grouting machine 1 drives the grouting pipe 2 to rotate. The grouting pipe 2 drives the first gear 6 to rotate. The first gear 6 drives the rotating plate 52 to rotate through meshing with the meshing columns, and then drives the cylindrical pin to rotate. The cylindrical pin drives the rotating plate 53 to rotate. The rotating rotating plate 53 drives the pulley block 54 to rotate, so that the sliding block moves into a set of guide plates 56. The sliding block that moves into the guide plates 56 drives the reciprocating plate 55 to move through the guide plates 56, so that the reciprocating plate 55 can move up and down back and forth, and the moving reciprocating plate 55 can drive the connecting rod 59 to move up and down.

[0046] Please refer to Figures 7-11, the pressing mechanism 4 includes a pressing ring 41. A plurality of pulling mechanisms 42 and a plurality of moving rods are equidistantly arranged on the lower surface of the pressing ring 41. The lower ends of the plurality of pulling mechanisms 42 are connected to a fixing ring 46. A spring groove is formed on the upper surface of the fixing ring 46. A spring 44 is arranged in the spring groove. An extrusion ring 43 is arranged at the upper end of the spring 44. A plurality of fixing blocks are equidistantly arranged on the outer surface of the extrusion ring 43. Pressing rods 45 are arranged on the lower surfaces of the plurality of fixing blocks. The lower ends of the plurality of pressing rods 45 are connected to a moving ring 47. A plurality of closing mechanisms 48 are equidistantly arranged on the lower surface of the moving ring 47. After each pressing is completed, the springback and reset of the spring 44 can drive the moving ring 47 and the closing mechanism 48 to reset, so that the whole pressing mechanism 4 is reset.

[0047] The upper surface of the pressing ring 41 is connected to the lower end of the reciprocating rod 510. Multiple groups of rectangular grooves are equidistantly formed on the outer surfaces of the moving ring 47 and the fixing ring 46. A plurality of pushing holes 461 and circular holes are equidistantly formed on the upper surface of the fixing ring 46. The plurality of pressing rods 45 are located in the circular holes. The plurality of closing mechanisms 48 are connected to the plurality of pulling mechanisms 42. The closing mechanism 48 is driven to act through the pulling mechanism 42. The reciprocating rod 510 that reciprocates up and down can drive the pressing ring 41 to move up and down, so as to drive the whole pressing mechanism 4 to operate.

[0048] The pulling mechanism 42 includes a first push rod 421, a second rack 424 and a second fixing plate 423. Rack ones 422 are arranged on both the left and right sides of the first push rod 421. A second gear 426 is meshed with each of the two rack ones 422. There are two second racks 424 and two second fixing plates respectively. The two second racks 424 are meshed and connected with the two second gears 426. Moving grooves two are formed on the inner side surfaces of the two second fixing plates 423. Mobile ends protrude from the outer side surfaces of the two second racks 424. The two second racks 424 are respectively movably arranged in the two moving grooves two through the mobile ends. Hinge blocks one 425 are arranged at the lower ends of the two second racks 424. The two hinge blocks are hinged to the closing mechanism 48. The pulling mechanism 42 can pull a plurality of pressing plates 481 to rotate and close together. A circular pressing plate 481 is formed through the closing of the plurality of pressing plates 481, so as to press the slurry in the base hole.

[0049] The lower ends of the two second fixing plates 423 are connected to the fixing ring 46. The first push rod 421 is vertically corresponding to the pushing hole 461. The fixing ring 46 is connected to the grouting pipe 2 through a bearing, so that the grouting pipe 2 will not drive the fixing ring 46 to rotate together when rotating, and the grouting pipe 2 is used to perform grouting treatment on the base hole.

[0050] The closing mechanism 48 includes a hinge plate 482 and a pressing plate 481, which are hinged between the hinge plate 482 and the pressing plate 481. There are two second push rods 483 arranged on the upper surface of the hinge plate 482. There are two second hinge blocks arranged on the inner surface of the pressing plate 481. An articulated rod 484 is hinged on each of the two second hinge blocks. The upper ends of the two articulated rods 484 are respectively hinged to two first hinge blocks 425. The upper ends of the two second push rods 483 are connected to the moving ring 47. A plurality of air outlet holes 462 are formed on the surface of the pressing plate 481. When the pressing plate 481 presses the slurry in the base hole, the air bubbles in the slurry can be pressed out through the plurality of air outlet holes 462.

[0051] When the connecting rod 59 moves downward, the connecting rod 59 pushes the downward pressing ring 41 to move downward through the reciprocating rod 510. The downward pressing ring 41 pushes the first push rod 421 to move downward. While the first push rod moves downward, it drives the first rack 422 to move downward, causing the second gear 426 to rotate. The second gear 426 pulls the second rack 424 to move upward. The second rack 424 pulls the articulated rod 484 hinged through the first hinge block 425 to move upward. The articulated rod 484 pulls the pressing plate 481 upward, causing the pressing plate 481 to rotate upward. After the first rack 422 moves downward and disengages from the second gear 426, at this time, the plurality of pressing plates 481 are exactly in a closed state. The first push rod 421 continues to move downward. The lower end of the first push rod 421 passes through the push hole 461 and contacts the moving ring 47. At the same time, the moving rod on the downward pressing ring 41 contacts the extrusion ring 43. The first push rod 421 pushes the moving ring 47 to move downward. At the same time, the moving rod pushes the fixed block, causing the extrusion ring 43 to squeeze the spring 44. The moving ring 47 moves downward and pushes the pressing plate 481 to move downward through the second push rod 483, causing the pressing plate 481 to contact the injected slurry, so as to squeeze the slurry downward, which can compact the slurry and increase the density between the slurries. And when the slurry is squeezed by the pressing plate 481, part of the air bubbles in the slurry can be pressed out through the plurality of air outlet holes 462 on the pressing plate 481, thereby removing the air bubbles in the slurry, which can effectively improve the quality of the slurry after solidification.

[0052] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments. Without departing from the said principles, the embodiments of the present invention can have any deformation or modification.

Claims

1. A base hole grouting device, comprising a drilling grouting machine (1), characterized in that: A grouting pipe (2) is installed on the drilling grouting machine (1). A drive box (3) is arranged above the outer surface of the grouting pipe (2). A pressing mechanism (4) for pressing the injected mud is arranged at the lower end of the outer surface of the grouting pipe (2); A drive mechanism (5) for driving the operation of the pressing mechanism (4) is arranged in the drive box (3); A through hole is formed in the lower surface of the drive box (3), and the lower end of the drive mechanism (5) is connected to the pressing mechanism (4) through the through hole; The pressing mechanism (4) includes a pressing ring (41). A plurality of pulling mechanisms (42) and a plurality of moving rods are equidistantly arranged on the lower surface of the pressing ring (41). The lower ends of the plurality of pulling mechanisms (42) are connected to a fixing ring (46). A spring groove is formed in the upper surface of the fixing ring (46). A spring (44) is arranged in the spring groove. An extrusion ring (43) is arranged at the upper end of the spring (44). A plurality of fixing blocks are equidistantly arranged on the outer surface of the extrusion ring (43). A pressing rod (45) is arranged on the lower surface of each of the plurality of fixing blocks. The lower ends of the plurality of pressing rods (45) are connected to a moving ring (47). A plurality of closing mechanisms (48) are equidistantly arranged on the lower surface of the moving ring (47); The upper surface of the pressing ring (41) is connected to the lower end of a reciprocating rod (510). A plurality of groups of rectangular grooves are equidistantly formed on the outer surfaces of the moving ring (47) and the fixing ring (46). A plurality of pushing holes (461) and round holes are equidistantly formed in the upper surface of the fixing ring (46). The plurality of pressing rods (45) are located in the round holes. The plurality of closing mechanisms (48) are connected to the plurality of pulling mechanisms (42). The pulling mechanism (42) drives the closing mechanism (48) to act. The pulling mechanism (42) includes a first push rod (421), a second rack (424) and a second fixing plate (423). Rack teeth (422) are arranged on both the left and right sides of the first push rod (421).

2. The base hole grouting equipment according to claim 1, characterized in that: A first gear (6) is arranged above the outer surface of the grouting pipe (2). The first gear (6) is located in the drive box (3) and is connected to the drive mechanism (5). The through hole in the drive box (3) is a strip-shaped hole. The drive box (3) is connected to the grouting pipe (2) through a bearing.

3. The grouting equipment for base holes according to claim 1, characterized in that: The drive mechanism (5) includes a first fixing plate (58), a support plate (51) and a reciprocating plate (55). A cylindrical pin is rotatably arranged inside the lower end of the support plate (51). A rotating plate (52) is arranged at the inner end of the cylindrical pin. A rotating plate (53) is arranged at the outer end of the cylindrical pin. Two convex plates extend from the rotating plate (53). A pulley block (54) is connected to the outer sides of the two convex plates on the rotating plate (53). A first moving plate (57) is arranged in the middle of the outer surface of the reciprocating plate (55). A connecting rod (59) is connected to the lower end of the first moving plate (57). The lower end of the connecting rod (59) is connected to a reciprocating rod (510). A first moving groove is formed in the middle of the inner surface of the first fixing plate (58).

4. The base hole grouting equipment according to claim 3, characterized in that: The movable plate one (57) is movably arranged in the movable groove one. A set of guide plates (56) are arranged at the corners of the inner surface of the reciprocating plate (55). The pulley block (54) on the protruding end of the rotating plate (53) is located between the set of guide plates (56).

5. The base hole grouting device according to claim 3, characterized in that: A plurality of engaging columns are equidistantly arranged on the outer surface of the rotating plate (53). The rotating plate (53) is meshed and connected with the gear one (6) through the plurality of engaging columns. The upper end of the support plate (51) is connected to the upper surface of the driving box (3). The connecting rod (59) is located in the through hole on the driving box (3). The fixing plate one (58) is connected to the inner surface of the driving box (3). The lower end of the reciprocating rod (510) is connected to the pressing mechanism (4).

6. The grouting device for base holes according to claim 5, wherein: Two gear two (426) are meshed with the two racks one (422). There are two racks two (424) and two fixing plates two. The two racks two (424) are meshed and connected with the two gear two (426). A movable groove two is formed on the inner surface of each of the two fixing plates two (423). A movable end protrudes from the outer surface of each of the two racks two (424). The two racks two (424) are respectively movably arranged in the two movable grooves two through the movable ends. An articulated block one (425) is arranged at the lower end of each of the two racks two (424). The two articulated blocks are articulated with the closing mechanism (48).

7. The grouting device for base holes according to claim 6, characterized in that: The lower ends of the two fixing plates two (423) are connected to the fixing ring (46). The push rod one (421) is vertically corresponding to the push hole (461). The fixing ring (46) is connected to the grouting pipe (2) through a bearing.

8. The grouting equipment for base holes according to claim 1, characterized in that: The closing mechanism (48) includes an articulated plate (482) and a pressing plate (481). The articulated plate (482) is articulated with the pressing plate (481). Two push rods two (483) are arranged on the upper surface of the articulated plate (482). Two articulated blocks two are arranged on the inner surface of the pressing plate (481). An articulated rod (484) is articulated on each of the two articulated blocks two. The upper ends of the two articulated rods (484) are respectively articulated with the two articulated blocks one (425). The upper ends of the two push rods two (483) are connected to the movable ring (47).

Images