Deep foundation pit grouting device

Abstract

The utility model relates to a deep foundation pit grouting device and belongs to the technical field of deep foundation pit grouting, the deep foundation pit grouting device comprises a supporting plate, a driving assembly, a lifting assembly and a slurry tank, two supporting seats are arranged below the supporting plate, supporting legs are fixedly arranged between the supporting plate and the supporting seats, storage grooves are formed in the lower surfaces of the supporting seats, and supporting rods and rotating rods are arranged in the storage grooves; the length direction of the rotating rod is perpendicular to the length direction of the supporting rod, one end of the rotating rod is rotationally connected with one side wall of the storage groove, the other end of the rotating rod penetrates through one side wall of the supporting seat, the rotating rod is rotationally connected with the supporting seat, the rotating rod penetrates through one end of the supporting rod, and the rotating rod is fixedly connected with the supporting rod. And a moving plate is arranged at the supporting seat, the moving plate and the supporting legs are slidably connected in the vertical direction, an avoiding groove is formed in the moving plate in a penetrating mode, and a rotating set for driving the rotating rod to rotate is arranged at the position, at the avoiding groove, of the moving plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of deep foundation pit grouting, in particular to a deep foundation pit grouting device. BACKGROUND

[0002] A foundation pit is a soil pit excavated at the foundation design position according to the foundation elevation and the foundation plane size. During the construction of the foundation pit, grouting is needed to realize the construction of the pile cap or the bottom sealing of the foundation pit.

[0003] The existing deep foundation pit grouting device is designed to include a horizontally arranged support plate, the four corners of which are fixedly provided with supporting legs to ensure stability. A avoiding slot is formed in the center of the support plate, which is specially designed to accommodate the grout tank and its vertical moving mechanism, i.e. the lifting assembly. In addition, the support plate is also equipped with a horizontal driving assembly for controlling the movement of the lifting assembly and the grout tank in the horizontal direction.

[0004] The grouting operation process is briefly described as follows: first, the support plate is moved to the top of the foundation pit by mechanical or manual means, and then the position of the support plate is adjusted by the workers to ensure that the foundation pit is directly opposite the avoiding slot below. Then, the grout tank is filled with grout. After filling, the horizontal driving assembly is first started to guide the lifting assembly and the grout tank to move to the preset horizontal position. Then, the lifting assembly starts to work and slowly sends the grout tank into the foundation pit to the specified depth. After reaching the position, the grout tank is opened to release the grout into the foundation pit. After the grouting is completed, the lifting assembly lifts the grout tank back to the original position and refills the grout. This process is repeated under the close cooperation of the horizontal driving assembly and the lifting assembly to ensure that the grout can be uniformly and efficiently filled into the entire foundation pit area.

[0005] According to the related technology in the above, since the lifting assembly, the driving assembly and the grout tank are integrated on the support plate, the overall weight is large, which makes the workers spend a lot of time and effort in the moving process, thereby the grouting device is not convenient to move. CONTENT OF THE UTILITY MODEL

[0006] In order to improve the convenience of moving the grouting device, the present application provides a deep foundation pit grouting device.

[0007] The deep foundation pit grouting device provided by the present application adopts the following technical scheme:

[0008] The utility model provides a kind of deep foundation pit grouting device, including support plate, drive assembly, lifting assembly and grout tank, two support seats are provided below the support plate, support leg is fixedly arranged between support plate and support seat, storage groove is opened in the lower surface of support seat, support rod and rotating rod are arranged in storage groove, the length direction of rotating rod and the length direction of support rod are perpendicular, one end of rotating rod is rotatably connected with the side wall of storage groove, the other end of rotating rod penetrates the side wall of support seat, rotating rod and support seat are rotatably connected, one end of rotating rod penetrates support rod, rotating rod and support rod are fixedly connected, the end of support rod away from rotating rod is connected with gyro wheel, moving plate is arranged at support seat, moving plate and support leg are slidably connected along vertical direction, moving plate is penetrated and is provided with avoiding slot, moving plate is provided with rotating assembly for driving rotating rod rotation at avoiding slot.

[0009] By adopting the above technical scheme, when adjusting the position of the support plate, the rotating rod is driven to rotate by the rotating assembly, and then the support rod is rotated, so that the gyro wheel is moved out of the storage groove and contacts the ground. In the process of turning over of the gyro wheel, the gyro wheel will promote the support rod to rise, and in turn drive the rotating rod, the support seat, the support leg and the support plate to move upward as a whole, and make the bottom of the support seat separate from the ground. At this time, the support leg is pushed to make the gyro wheel freely roll on the ground, so that the position of the support plate is adjusted. After the position adjustment is completed, the rotating assembly is operated again to drive the rotating rod to rotate, so that the support rod drives the gyro wheel to turn over into the storage groove. With the support rod and the gyro wheel completely entering the storage groove, the bottom surface of the support seat recontacts the ground to provide stable support for the support leg and the support plate. The design of the gyro wheel effectively reduces the friction between the support seat and the ground, and improves the convenience of moving the grouting device.

[0010] Optionally, the rotating assembly includes a first gear and a rack, the first gear is fixedly connected with one end of the rotating rod outside the support seat, the rack is fixedly arranged on the side wall of the avoiding slot of the moving plate, the rack is vertically arranged, the rack is engaged with the first gear, and the support plate is provided with a moving assembly for driving the moving plate to move vertically.

[0011] By adopting the above technical scheme, the moving assembly drives the moving plate to move, the moving plate drives the rack to move, the rack drives the first gear to rotate in the process of moving, and the first gear drives the rotating rod to rotate, so that the rotating assembly realizes the function of driving the rotating rod to rotate.

[0012] Optionally, the opposite two side walls of the support plate are fixedly provided with auxiliary plates, the moving assembly is provided with two groups, the two groups of moving assemblies and the auxiliary plates are one-to-one corresponding, the moving assembly includes a threaded sleeve and a screw rod, the threaded sleeve penetrates the auxiliary plate, the threaded sleeve and the auxiliary plate are rotatably connected, the screw rod is threadedly connected with the threaded sleeve, the bottom end of the screw rod is fixedly connected with the upper surface of the moving plate, a telescopic rod is fixedly arranged between the auxiliary plate and the moving plate, the telescopic rod is composed of multiple rod bodies, the rod bodies are slidably connected, and the auxiliary plate is provided with a power assembly capable of providing power for rotation of the threaded sleeve.

[0013] By adopting the technical scheme, the power assembly provides power for the threaded sleeve, the threaded sleeve rotates, the threaded sleeve moves the screw rod along the vertical direction under the guidance of the telescopic rod and the moving plate, the screw rod moves the moving plate, and the moving plate moves the rack, so that the moving assembly realizes the function of moving the moving plate.

[0014] Optionally, the upper surface of the auxiliary plate is fixedly provided with a motor, the power assembly comprises a second gear and a third gear, the output shaft of the motor is fixedly connected with the second gear, the threaded sleeve penetrates through the third gear and is fixedly connected with the third gear, and the second gear is engaged with the third gear.

[0015] By adopting the technical scheme, the motor is started, the motor drives the second gear to rotate, the second gear drives the third gear to rotate, and the third gear drives the threaded sleeve to rotate, so that the power assembly realizes the function of driving the threaded sleeve to rotate.

[0016] Optionally, the side, away from the supporting leg, of the moving plate is hingedly connected with a connecting plate, a sliding groove is formed in the end of the connecting plate, away from the hinge, and a rivet is arranged at the sliding groove.

[0017] By adopting the technical scheme, after the position of the supporting plate is adjusted, the connecting plate is rotated to make the connecting plate contact the ground, the rivet is placed in the sliding groove, and a worker knocks the rivet in the ground direction by means of a tool to fix the connecting plate and the ground. Through the fixing of the connecting plate and the ground, the moving plate is fixed, and then the supporting plate is fixed, so that the grouting device is not easily moved on the ground during the working process of the grouting device.

[0018] Optionally, the side, facing the connecting plate, of the moving plate is fixedly provided with a placing shell for placing the rivet.

[0019] By adopting the technical scheme, after the rivet is used, the rivet can be placed in the placing shell, so that the rivet is not easily lost.

[0020] Optionally, the side, facing the connecting plate, of the moving plate is fixedly provided with a fixed block, the fixed block is above the hinge end of the connecting plate, a moving slot is formed in the side wall of the fixed block, a baffle is slidably connected in the moving slot, the baffle is used for fixing the connecting plate, a pull rod is fixedly arranged on the side of the baffle, facing the bottom wall of the moving slot, one end of the pull rod penetrates through the fixed block, and the pull rod and the fixed block are slidably connected.

[0021] By adopting the technical scheme, when the connecting plate and the ground are not fixed, the connecting plate is rotated to make the connecting plate and the moving plate adhere to each other. After the adhesion, the pull rod drives the baffle to move, one end of the baffle extends to the outside of the moving slot, the connecting plate is between the baffle and the moving plate, and the baffle blocks the connecting plate, so that the connecting plate is not easily moved away from the moving plate.

[0022] Optionally, the pull rod is fixedly connected with a pull plate at one end away from the baffle, and a spring is arranged between the pull plate and the fixed block, and the spring is sleeved on the pull rod.

[0023] By adopting the above technical scheme, in the process of rotating the connecting plate toward the moving plate, the pull plate is pulled away from the fixed block, the spring is stretched, the pull plate drives the pull rod to move, the pull rod drives the baffle to move, the baffle moves into the moving groove, after the connecting plate and the moving plate are attached, the pull plate is released, the spring is contracted, the pull plate is driven to move toward the fixed block, the pull plate drives the pull rod to move, the pull rod drives the baffle to move, and the baffle blocks the connecting plate. The setting of the spring makes the baffle not easy to move toward the moving groove, and the stability of the baffle blocking the connecting plate is improved.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The rotating assembly drives the rotating rod to rotate, the rotating rod drives the supporting rod to rotate, the supporting rod drives the roller to move, the roller contacts the ground, and under the support of the ground, the supporting seat and the ground are separated, the supporting leg is pushed, and the supporting plate is moved. After the position adjustment of the supporting plate is completed, the rotating assembly is used to move the supporting rod and the roller into the storage groove. The setting of the roller reduces the friction between the supporting seat and the ground, thereby improving the convenience of moving the grouting device.

[0026] 2. The setting of the connecting plate and the rivet makes the supporting seat not easy to move randomly on the ground.

[0027] 3. The setting of the baffle provides convenience for fixing the connecting plate, and makes the connecting plate not easy to affect the moving supporting plate. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic view of a deep foundation grouting device according to an embodiment of the present application;

[0029] Figure 2 is a structural sectional view of the storage groove according to an embodiment of the present application;

[0030] Figure 3 is a structural sectional view of the fixed block according to an embodiment of the present application.

[0031] In the figure, 1, support plate; 11, drive assembly; 12, lifting assembly; 13, slurry tank; 14, auxiliary plate; 15, telescopic rod; 16, motor; 2, support seat; 21, support leg; 22, storage groove; 23, support rod; 24, rotating rod; 25, roller; 3, moving plate; 31, avoiding groove; 32, placing shell; 4, rotating assembly; 41, first gear; 42, rack; 5, moving assembly; 51, threaded sleeve; 52, screw rod; 6, power assembly; 61, second gear; 63, third gear; 7, connecting plate; 71, sliding groove; 72, rivet; 8, fixed block; 81, moving groove; 82, baffle; 83, pull rod; 84, pull plate; 85, spring. DETAILED DESCRIPTION

[0032] The following will be described in detail with reference to the accompanying drawings Figures 1-3 The application is further described in detail.

[0033] The embodiment of the application discloses a deep foundation pit grouting device.

[0034] Reference Figure 1 A deep foundation pit grouting device comprises a support plate 1, opposite sides of a lower surface of the support plate 1 are provided with support seats 2, the two support seats 2 are parallel to each other, two support legs 21 are fixed between the support seats 2 and the support plate 1, the support legs 21 are perpendicular to the support plate 1, four support legs 21 are arranged at four corners of the lower surface of the support plate 1, a slurry tank 13 is arranged directly below the support plate 1, the support plate 1 is provided with a lifting assembly 12 capable of driving the slurry tank 13 to move in the vertical direction, and the support plate 1 is provided with a drive assembly 11 for driving the lifting assembly 12 to move on the horizontal plane.

[0035] The support plate 1 is moved to the foundation pit, the support seats 2 are in contact with the ground, the support plate 1 is supported through the support legs 21, when the foundation pit is poured, the slurry tank 13 is filled with slurry, after the filling of the slurry is completed, the lifting assembly 12 is driven by the drive assembly 11 to move on the horizontal plane, the lifting assembly 12 drives the slurry tank 13 to move, after the slurry tank 13 moves to the set position, the lifting assembly 12 is started to drive the slurry tank 13 to move into the foundation pit, after the slurry tank 13 falls to the set position, the slurry tank 13 is opened, the slurry in the slurry tank 13 falls into the foundation pit, then the lifting assembly 12 drives the slurry tank 13 to move out of the foundation pit, the slurry tank 13 is filled with slurry again, after the filling is completed, the slurry is uniformly filled into the foundation pit through the cooperation of the drive assembly 11 and the lifting assembly 12.

[0036] Reference Figure 1 and Figure 2The lower surface of the support base 2 is provided with a storage groove 22 along the length direction of the support base 2, two rotating rods 24 are arranged in the storage groove 22, the length direction of the rotating rod 24 is perpendicular to the length direction of the support base 2, the two rotating rods 24 are arranged in sequence along the length direction of the support base 2, one end of the rotating rod 24 is rotatably connected with one side wall of the storage groove 22, the other end of the rotating rod 24 penetrates the support base 2 and is rotatably connected with the support base 2, a supporting rod 23 is arranged on the rotating rod 24, the length direction of the supporting rod 23 is perpendicular to the rotating rod 24, the rotating rod 24 penetrates and is fixedly connected with the supporting rod 23, one end of the supporting rod 23 is connected with a roller 25, one side of the two support bases 2 is provided with a moving plate 3, the moving plate 3 is slidably connected with the supporting leg 21 in the vertical direction, the bottom end of the moving plate 3 penetrates a avoiding groove 31, the avoiding groove 31 penetrates the lower surface of the moving plate 3, and a rotating assembly 4 for driving the rotating rod 24 to rotate is arranged at the avoiding groove 31.

[0037] The rotating assembly 4 is provided in multiple groups, the multiple rotating assemblies 4 correspond to the rotating rods 24 one by one, the rotating assembly 4 comprises a rack 42 and a first gear 41, the rack 42 is fixedly connected with one side wall of the avoiding groove 31, the length direction of the rack 42 is parallel to the length direction of the supporting leg 21, and the first gear 41 is fixedly connected with one end of the rotating rod 24 outside the storage groove 22, and the first gear 41 is engaged with the rack 42.

[0038] When the position of the support plate 1 needs to be adjusted, the moving plate 3 moves upwards, the moving plate 3 drives the rack 42 to move, the rack 42 drives the first gear 41 to rotate, the first gear 41 drives the rotating rod 24 to rotate, the rotating rod 24 drives the supporting rod 23 to rotate, the supporting rod 23 drives the roller 25 to move, and at the same time, the end of the supporting rod 23 away from the rotating rod 24 and the roller 25 gradually move outward from the storage groove 22, the roller 25 contacts the ground and is lifted upwards by the supporting rod 23 under the support of the ground, the supporting rod 23 lifts the rotating rod 24 upwards, the rotating rod 24 lifts the support base 2 upwards, so that the support base 2 is separated from the ground, after the length direction of the supporting rod 23 is parallel to the length direction of the supporting leg 21, the moving plate 3 stops moving upwards, the supporting leg 21 is pushed, the supporting leg 21 drives the support base 2 to move, the support base 2 drives the supporting rod 23 to move through the rotating rod 24, the supporting rod 23 drives the roller 25 to move, the arrangement of the roller 25 provides convenience for adjusting the position of the support plate 1, after the position of the support plate 1 is adjusted, the moving plate 3 moves downwards, the moving plate 3 drives the rack 42 to move, the rack 42 drives the first gear 41 to reverse, the first gear 41 drives the rotating rod 24 to rotate, and the rotating rod 24 drives the supporting rod 23 and the roller 25 to move into the storage groove 22, after the roller 25 and the supporting rod 23 enter into the storage groove 22, the support base 2 contacts the ground again, so as to provide support for the support plate 1, and at the same time, through the friction between the support base 2 and the ground, the support plate 1 is not easy to move randomly relative to the ground in the working process.

[0039] Reference Figure 1 andFigure 2 The opposite sides of the support plate 1 are fixedly provided with auxiliary plates 14, the auxiliary plates 14 are parallel to the support plate 1, the auxiliary plates 14 are located directly above the moving plates 3 and correspond one by one, two telescopic rods 15 are fixedly arranged between the auxiliary plates 14 and the moving plates 3, the telescopic rods 15 are composed of a plurality of rod bodies sleeved together, the rod bodies are slidingly connected, and the auxiliary plate 14 is provided with a moving assembly 5 for driving the moving plate 3 to move in the vertical direction.

[0040] The moving assembly 5 comprises a threaded sleeve 51 and a screw rod 52, the length direction of the threaded sleeve 51 is perpendicular to the auxiliary plate 14, the threaded sleeve 51 penetrates the auxiliary plate 14 and is rotationally connected with the auxiliary plate 14, the screw rod 52 is threadedly connected with the threaded sleeve 51, the bottom end of the screw rod 52 is fixedly connected with the moving plate 3, the auxiliary plate 14 is fixedly provided with a motor 16, and the motor 16 is provided with a power assembly 6 for providing power for rotation of the threaded sleeve 51.

[0041] The power assembly 6 comprises a second gear 61 and a third gear 63, the second gear 61 is fixedly connected with the output shaft of the motor 16, the third gear 63 is arranged at the upper end of the threaded sleeve 51, the threaded sleeve 51 penetrates the third gear 63 and is fixedly connected with the third gear 63, and the second gear 61 is engaged with the third gear 63.

[0042] The motor 16 is started, the motor 16 drives the second gear 61 to rotate, the second gear 61 drives the third gear 63 to rotate, the third gear 63 drives the threaded sleeve 51 to rotate, the threaded sleeve 51 moves in the vertical direction under the guidance of the telescopic rod 15 and the moving plate 3, the threaded sleeve 51 drives the screw rod 52 to move in the vertical direction, the screw rod 52 drives the moving plate 3 to move, and the upward and downward movement of the moving plate 3 is realized through the forward and reverse rotation of the motor 16.

[0043] Reference Figure 1 And Figure 2 The side, away from the support base 2, of the moving plate 3 is hingedly connected with two moving plates 3, the two moving plates 3 are arranged in sequence along the length direction of the support base 2, a sliding groove 71 is formed in the end, away from the hinged connection, of the connecting plate 7, a placement shell 32 is fixedly arranged on the side of the moving plate 3, facing the connecting plate 7, a rivet 72 is placed in the placement shell 32, and the rivet 72 and the sliding groove 71 are insertedly matched.

[0044] After the position adjustment of the support plate 1 is completed, the connecting plate 7 is rotated to be in contact with the ground, the rivet 72 is taken out from the placement shell 32, the front end of the rivet 72 is inserted into the sliding groove 71 and corresponds one by one, and the rivet 72 is knocked in the direction of the ground by means of a tool, so that the fixing of the connecting plate 7 and the ground is completed, the connecting plate 7 is not easy to move relative to the ground, and then the support base 2 is not easy to move relative to the ground, and the stability of the working of the grouting device is improved.

[0045] Reference Figure 1 , Figure 2 And Figure 3 Figure 3The side of the moving plate 3 facing the connecting plate 7 is fixedly provided with two fixed blocks 8, one side of the fixed block 8 is provided with a moving groove 81, the fixed block 8 is slidably connected with a baffle 82 in the groove, the baffle 82 is parallel to the moving plate 3, the side of the baffle 82 facing the inner bottom wall of the moving groove 81 is fixedly provided with a pull rod 83, one end of the pull rod 83 away from the baffle 82 penetrates through the fixed block 8, the pull rod 83 and the fixed block 8 are slidably connected, one end of the pull rod 83 outside the fixed block 8 is fixedly provided with a pull plate 84, the spring 85 is fixedly arranged between the pull plate 84 and the fixed block 8, the spring 85 is sleeved outside the pull rod 83, the side of the baffle 82 away from the pull rod 83 is provided as an inclined surface, and the baffle 82 is used for blocking the connecting plate 7 and one-to-one correspondence.

[0046] When the position of the support plate 1 is adjusted, the connecting plate 7 is rotated towards the moving plate 3, in the process of rotating, the connecting plate 7 first contacts the inclined surface of the baffle 82, pushes the baffle 82 towards the moving groove 81, the baffle 82 drives the pull rod 83 to move, the pull rod 83 drives the pull plate 84 to move, and the spring 85 is stretched, after the connecting plate 7 is between the baffle 82 and the moving plate 3, the spring 85 is contracted, drives the pull plate 84 to move towards the fixed block 8, the pull plate 84 drives the pull rod 83 to move, the pull rod 83 drives the baffle 82 to move, one end of the baffle 82 extends out of the moving groove 81, the baffle 82 blocks the connecting plate 7, so that the connecting plate 7 is not easy to rotate away from the moving plate 3, after the position adjustment of the support plate 1 is completed, the pull plate 84 is pulled away from the fixed block 8, the pull plate 84 drives the pull rod 83 to move, the pull rod 83 drives the baffle 82 to move, the baffle 82 unblocks the connecting plate 7, so that the connecting plate 7 can rotate away from the moving plate 3.

[0047] The implementation principle of the deep foundation pit grouting device is: when the position of the support plate 1 needs to be adjusted, the power assembly 6 drives the threaded sleeve 51 to rotate, under the guidance of the telescopic rod 15, the threaded sleeve 51 drives the screw rod 52 to move in the vertical direction. The movement of the screw rod 52 further pushes the moving plate 3, the moving plate 3 drives the rotating rod 24 to rotate through the rotating assembly 4, the rotating rod 24 drives the support rod 23 to rotate, the roller 25 at the end of the support rod 23 is moved out of the storage groove 22 and contacts the ground. With the continuous rotation of the support rod 23, the roller 25 supports the support rod 23, the rotating rod 24 and the support base 2 in turn under the support of the ground, so that the support base 2 is separated from the ground. At this time, the worker can push the supporting leg 21, the supporting leg 21 drives the support plate 1 and the support base 2 to move together. In the moving process, the support base 2 makes the roller 25 roll on the ground through the action of the rotating rod 24 and the support rod 23, so as to realize the adjustment of the position of the support plate 1. The setting of the roller 25 effectively reduces the friction between the support base 2 and the ground, and improves the convenience of the movement of the grouting device.

[0048] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A deep foundation pit grouting device, comprising a support plate (1), a drive assembly (11), a lifting assembly (12), and a grout tank (13), characterized in that: Two support seats (2) are provided below the support plate (1). A support leg (21) is fixed between the support plate (1) and the support seat (2). A storage groove (22) is provided on the lower surface of the support seat (2). A support rod (23) and a rotating rod (24) are provided in the storage groove (22). The length direction of the rotating rod (24) is perpendicular to the length direction of the support rod (23). One end of the rotating rod (24) is rotatably connected to one side wall of the storage groove (22). The other end of the rotating rod (24) passes through one side wall of the support seat (2). 4) Rotary connection with support base (2), rotating rod (24) passes through one end of support rod (23), rotating rod (24) and support rod (23) are fixedly connected, and roller (25) is connected to the end of support rod (23) away from rotating rod (24). A movable plate (3) is provided at support base (2), and movable plate (3) and support leg (21) are slidably connected in the vertical direction. A clearance groove (31) is provided through movable plate (3), and a rotating component (4) that drives rotating rod (24) to rotate is provided at clearance groove (31) of movable plate (3).

2. The deep foundation pit grouting device according to claim 1, characterized in that: The rotating assembly (4) includes a first gear (41) and a rack (42). The first gear (41) and the rotating rod (24) are fixedly connected at one end outside the support base (2). The rack (42) is fixed on the side wall of the clearance groove (31) of the moving plate (3). The rack (42) is vertically arranged and meshes with the first gear (41). The support plate (1) is provided with a moving assembly (5) for driving the moving plate (3) to move in the vertical direction.

3. The deep foundation pit grouting device according to claim 2, characterized in that: Auxiliary plates (14) are fixedly provided on both opposite side walls of the support plate (1). Two sets of moving components (5) are provided, and the two sets of moving components (5) correspond one-to-one with the auxiliary plates (14). The moving component (5) includes a threaded sleeve (51) and a screw (52). The threaded sleeve (51) passes through the auxiliary plate (14) and is rotatably connected to the auxiliary plate (14). The screw (52) and the threaded sleeve (51) are threadedly connected. The bottom end of the screw (52) is fixedly connected to the upper surface of the moving plate (3). A telescopic rod (15) is fixedly provided between the auxiliary plate (14) and the moving plate (3). The telescopic rod (15) is composed of multiple rod sections sleeved together and slidably connected between the rod sections. The auxiliary plate (14) is provided with a power component (6) that can provide power for the rotation of the threaded sleeve (51).

4. The deep foundation pit grouting device according to claim 3, characterized in that: The auxiliary plate (14) has a motor (16) fixed on its upper surface. The power assembly (6) includes a second gear (61) and a third gear (63). The second gear (61) and the output shaft of the motor (16) are fixedly connected. The threaded sleeve (51) passes through the third gear (63) and is fixedly connected. The second gear (61) and the third gear (63) mesh.

5. A deep foundation pit grouting device according to claim 1, characterized in that: The movable plate (3) is hinged to a connecting plate (7) on the bottom side away from the support leg (21). The connecting plate (7) has a sliding groove (71) through the end away from the hinge. The connecting plate (7) has a rivet (72) at the sliding groove (71).

6. A deep foundation pit grouting device according to claim 5, characterized in that: The movable plate (3) is fixed with a placement shell (32) for placing rivets (72) on the side facing the connecting plate (7).

7. A deep foundation pit grouting device according to claim 5, characterized in that: A fixing block (8) is fixed on the side of the movable plate (3) facing the connecting plate (7). The fixing block (8) is located above the hinged end of the connecting plate (7). A moving groove (81) is opened on one side wall of the fixing block (8). A baffle (82) is slidably connected to the fixing block (8) in the moving groove (81). The baffle (82) is used to fix the connecting plate (7). A pull rod (83) is fixed on the side of the baffle (82) facing the bottom wall of the moving groove (81). The end of the pull rod (83) away from the baffle (82) passes through the fixing block (8). The pull rod (83) and the fixing block (8) are slidably connected.

8. A deep foundation pit grouting device according to claim 7, characterized in that: A pull plate (84) is fixedly connected to one end of the pull rod (83) away from the baffle (82). A spring (85) is fixed between the pull plate (84) and the fixing block (8), and the spring (85) is sleeved on the outside of the pull rod (83).

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