Grouting device and grouting method for highway bridge construction

Abstract

The invention provides a grouting device and a grouting method for highway bridge construction. The grouting device comprises a supporting bottom plate; the grouting barrel is arranged on the supporting bottom plate in a penetrating mode in the vertical direction in a position-adjustable mode, and a plurality of grouting openings are formed in the side wall of the grouting barrel in a penetrating mode; one end of the grouting hose is connected to the top of the grouting cylinder and communicates with the grouting cylinder; the periphery of the grouting barrel is sleeved with the plugging mechanism in the mode that the plugging mechanism can rotate relative to the grouting barrel. The grouting device extends into a foundation by adjusting the position of the grouting barrel in the vertical direction, and grouting is conducted through the grouting opening; the plugging mechanism rotates to the plugging position to plug the grouting openings in all rows, it is avoided that part of sundries or soil blocks the grouting openings in the process that the grouting barrel is inserted into the foundation, and after the grouting barrel moves downwards in place, the plugging mechanism can further rotate to the grouting position, so that the grouting openings in all rows are exposed; slurry in the grouting barrel can flow out of the grouting opening and be injected into a foundation, and grouting work is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of highway bridge construction, and in particular to a grouting device and a grouting method for highway bridge construction. Background Art

[0002] During the construction of highway bridges, it is necessary to build a foundation of appropriate size first. However, cracks or pores are very likely to occur inside the rock foundation. If these cracks or pores are not filled in time, the quality of the constructed highway will be affected, which will be extremely detrimental to the safety of vehicles passing through here in the later stage. Therefore, a grouting device for highway bridge construction is needed to inject certain curable slurry into the cracks and hollows detected by the staff, and use a hollow rod to insert into the foundation and extend to the inside of the cracks or hollow parts, and then inject certain curable slurry into the cracks or hollows of the rock foundation through the inside of the hollow rod to fill them.

[0003] When the existing grouting device for highway bridge construction is currently inserting the hollow rod into the foundation, some debris or soil is easy to block the slurry outlet on the side wall of the hollow rod, affecting the normal progress of the grouting work. In addition, in the existing grouting device for highway bridge construction, during the process of the hollow rod being raised and lowered, the grouting hose for conveying slurry is easy to accumulate and entangle on the top of the hollow rod, which not only affects the service life of the grouting hose, but also affects the normal progress of the grouting work. Summary of the invention

[0004] In view of this, the present invention proposes a grouting device and a grouting method for highway bridge construction, aiming to solve the problem that some debris or soil easily blocks the grouting outlet on the side wall of the hollow rod during the insertion of the existing hollow rod into the foundation, affecting the grouting work.

[0005] On the one hand, the present invention proposes a grouting device for highway bridge construction, which includes: a supporting base plate, which has a walking state and a fixed supporting state; a grouting barrel, which is vertically arranged on the supporting base plate in a position-adjustable manner, and a plurality of grouting ports are formed through the side wall of the grouting barrel; a grouting hose, one end of which is connected to the top of the grouting barrel and communicated with the grouting barrel, and the other end of which is used to connect to a slurry storage device to inject slurry into the grouting barrel; a blocking mechanism, which is sleeved on the outer circumference of the grouting barrel in a rotatable manner relative to the grouting barrel, and is used to rotate to a blocking position to block the grouting port, and can move downward with the grouting barrel until it extends into the foundation, and the blocking mechanism rotates to the grouting position to make way for the grouting port, so that the slurry in the grouting barrel can flow out from the grouting port for grouting; a retracting mechanism, which is connected to the grouting hose and is used to retract and release the grouting hose.

[0006] Furthermore, in the above-mentioned grouting device for highway bridge construction, the blocking mechanism includes: a ring sleeve; a plurality of arc-shaped baffles, each of which is arranged on one side of the ring sleeve along the axial direction of the ring sleeve, and a plurality of the arc-shaped baffles are arranged at intervals along the circumferential direction of the ring sleeve, one end of each of the arc-shaped baffles is connected to the ring sleeve, and is used to rotate to the grouting port to block the grouting port, or rotate to the solid part of the grouting barrel on one side of the grouting port to make way for the grouting port to open; an L-shaped driving rod, one end of which is connected to the ring sleeve, and the other end is used to connect to the blocking driving mechanism.

[0007] Furthermore, in the above-mentioned grouting device for highway bridge construction, the retracting and releasing mechanism comprises: a retracting and releasing box; a counterweight block, which is arranged in the retracting and releasing box, and the counterweight block can perform reciprocating linear motion in the vertical direction in the retracting and releasing box; wherein the other end of the grouting hose successively passes through the retracting and releasing box to extend to the inside, bypasses from the bottom of the counterweight block, and passes through the retracting and releasing box to extend to the outside to connect to the grouting storage equipment outside the retracting and releasing box; a rope, one end of which is passed through the retracting and releasing box and extends to the inside of the retracting and releasing box and is connected to the counterweight block, and the other end is placed outside the retracting and releasing box and is connected to the grouting tube, when the grouting tube descends, the counterweight block is pulled to move upward, and when the grouting tube rises, the counterweight block moves downward under the action of its own gravity and presses the grouting hose, so that the grouting hose is retracted into the retracting and releasing box, and the grouting hose is in a straight state.

[0008] Furthermore, in the above-mentioned grouting device for highway bridge construction, two guide wheels are provided above the supporting base plate, and the height of the two guide wheels is higher than the height of the grouting cylinder located at the highest position; the rope and the grouting hose pass through the two guide wheels respectively and are rollingly connected to the two guide wheels respectively.

[0009] Furthermore, in the above-mentioned grouting device for highway bridge construction, a drill bit is provided below the grouting barrel, a drill drive mechanism is embedded and fixedly connected to the bottom surface of the grouting barrel, an output end of the drill drive mechanism is connected to the drill bit, and the supporting base plate is located below the drill bit and has a barrel opening extending therethrough.

[0010] Furthermore, in the above-mentioned grouting device for highway bridge construction, the blocking mechanism is connected to a blocking driving mechanism for driving the blocking mechanism to rotate so as to switch between the blocking position and the grouting position; the grouting barrel is connected to a lifting driving mechanism for driving the grouting barrel to lift and lower in the vertical direction.

[0011] Furthermore, in the above-mentioned grouting device for highway bridge construction, the lifting drive mechanism includes: a U-shaped support plate; a driving screw, which is arranged on the U-shaped support plate along the groove depth direction of the U-shaped support plate, and the driving screw can rotate relative to the U-shaped support plate, and the driving screw is connected to a lifting drive motor for driving the driving screw to rotate; a lifting block, which is threadedly connected to the driving screw, and is used to convert the rotation of the driving screw into reciprocating linear motion of the lifting block, so as to drive the grouting barrel to lift and lower in the vertical direction.

[0012] Furthermore, in the above-mentioned grouting device for highway bridge construction, an anti-skid pad is provided at the bottom of the support base plate; a movable part which can be raised and lowered in the vertical direction is also provided on the support base plate, and when in the fixed support state, the movable part rises to a suspended state, and the anti-skid pad contacts the support surface to provide fixed support; when in the walking state, the movable part descends to contact the support surface and lifts the support base plate, so that the anti-skid pad is suspended in the air, so as to provide mobile support through the movable part and drive the support base plate to move.

[0013] Furthermore, in the above-mentioned grouting device for highway bridge construction, the moving part includes: a U-shaped connecting plate, which is arranged on the supporting base plate, and the supporting base plate is provided with a makeshift opening directly below the U-shaped connecting plate; a mounting plate, which is arranged below the U-shaped connecting plate, and a telescopic connecting member is also provided between the mounting plate and the U-shaped connecting plate, for controlling the lifting and lowering movement of the mounting plate by telescoping; a moving wheel, which is arranged at the bottom of the mounting plate, and under the action of the telescopic connecting member, performs lifting and lowering movement with the mounting plate to realize switching between the walking state and the fixed support state.

[0014] On the other hand, the present invention proposes a grouting method for highway bridge construction, which adopts the above-mentioned grouting device for highway bridge construction, and the grouting method includes the following steps: switching the supporting base plate to a walking state, pushing the grouting device to move, and aligning the grouting barrel with the position to be grouting; switching the supporting base plate to a fixed supporting state; controlling the blocking mechanism to rotate to a blocking position to block the grouting port, and controlling the grouting barrel to descend and extend into the foundation until the grouting barrel reaches the height position to be grouting; controlling the blocking mechanism to rotate the grouting position to expose multiple grouting ports; controlling the grouting barrel and the grouting hose to grout into the grouting barrel, and the injected slurry is injected into the grouting position in the foundation through multiple grouting ports; after the grouting is completed, controlling the grouting barrel to rise above the supporting base plate.

[0015] The grouting device and grouting method for highway bridge construction provided by the present invention can extend the grouting tube into the foundation by adjusting the vertical position of the grouting tube to perform grouting through the grouting opening; in the process of the grouting tube extending downward into the foundation, the blocking mechanism is rotated to the blocking position to block the grouting openings in each row, so as to avoid the grouting openings being blocked by some debris or soil in the process of the grouting tube being inserted into the foundation, and solves the problem that some debris or soil is easy to block the grouting openings on the side walls of the hollow rods and affect the grouting work in the process of the existing hollow rods being inserted into the foundation; after the grouting tube is moved downward into position, the blocking mechanism can also be rotated to the grouting position, so that the grouting openings in each row are exposed, so that the slurry in the grouting tube can flow out from the grouting openings and be injected into the foundation, so as to realize the grouting work; when the grouting tube is descended, the grouting hose is released by the retracting and releasing mechanism, so that the grouting hose can descend with the grouting tube, and when the grouting tube is ascended, the retracting and releasing mechanism can realize the retraction of the grouting hose, so as to avoid the grouting hose being entangled and accumulated on the top surface of the grouting tube and affecting the normal progress of the grouting work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic diagram of the structure of a grouting device for highway bridge construction provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of the guide wheel installation of the grouting device for highway bridge construction provided by an embodiment of the present invention; Figure 3 A front cutaway view of a grouting device for highway bridge construction provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of the rope connection in the grouting device for highway bridge construction provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the cylinder connection in the grouting device for highway bridge construction provided by an embodiment of the present invention; Figure 6 for Figure 3 A partial enlarged view of the middle A; Figure 7 for Figure 3 A partial enlarged view of point B in the middle; Figure 8 A flowchart of a grouting method for highway bridge construction provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] See also Figures 1 to 7 , which is a schematic diagram of the structure of a grouting device for highway bridge construction provided by an embodiment of the present invention. As shown in the figure, the grouting device includes: a supporting base plate 1, a grouting cylinder 2, a grouting hose 3, a blocking mechanism 4, a retracting mechanism 5, a lifting drive mechanism 6 and a blocking drive mechanism 7.

[0019] The grouting cylinder 2 is vertically arranged on the support base plate 1 in a position-adjustable manner, and a plurality of grouting ports 21 are formed through the side wall of the grouting cylinder 2. Specifically, the grouting cylinder 2 is vertically arranged above the support base plate 1, and the grouting cylinder 2 is axially arranged (such as Figure 1 The grouting tube 2 is provided with a plurality of grouting ports 21 extending through the side wall of the grouting tube 2. In the present embodiment, a plurality of rows of grouting ports 21 are provided along the circumference of the side wall of the grouting tube 2, and each row of grouting ports 21 is multiple and arranged on the same vertical line. In the present embodiment, the grouting tube 2 is connected with a lifting drive mechanism 6 for driving the grouting tube 2 to perform lifting and lowering movements in the vertical direction. In the present embodiment, the support base plate 1 has a walking state and a fixed support state. In the walking state, the support base plate 1 moves in a walking manner to perform grouting at different positions. In the fixed support state, the support base plate 1 is fixedly supported to perform grouting stably.

[0020] One end of the grouting hose 3 is connected to the top of the grouting cylinder 2 and communicated with the grouting cylinder 2, and the other end is used to connect to a slurry storage device (not shown in the figure) to inject slurry into the grouting cylinder 2. Specifically, the grouting hose 3 is arranged above the grouting cylinder 2. In order to realize grouting in the grouting cylinder 2, preferably, the grouting hose 3 is connected to a grouting pump 31, which can be installed on one end of the top surface of the grouting cylinder 2. The output end of the grouting pump 31 is communicated with the grouting cylinder 2, the input end of the grouting pump 31 is communicated with one end of the grouting hose 3, and the other end of the grouting hose 3 is communicated with the slurry storage device, so that the slurry in the slurry storage device is pumped from the grouting hose 3 into the grouting cylinder 2 through the grouting pump 31. Among them, the grouting hose 3 can be a metal hose structure.

[0021] The sealing mechanism 4 is sleeved on the outer circumference of the grouting tube 2 in a manner that it can rotate relative to the grouting tube 2, and is used to rotate to a blocking position to block the grouting port 21, and can move downward with the grouting tube 2 until it extends into the foundation. The sealing mechanism 4 rotates to the grouting position to make way for the grouting port 21, thereby allowing the slurry in the grouting tube 2 to flow out from the grouting port 21 for grouting. Specifically, the blocking mechanism 4 is slidably sleeved on the outer periphery of the grouting tube 2 in a manner that it can rotate relative to the grouting tube 2, and can be rotated to the blocking position, that is, the blocking mechanism 4 is rotated to a position that matches each row of grouting ports 21, and each row of grouting ports 21 is blocked to prevent some debris or soil from blocking the grouting ports 21 during the insertion of the grouting tube 2 into the foundation. It can also be rotated to the grouting position so that each row of grouting ports 21 is exposed, so that the slurry of the grouting tube 2 can flow out from the grouting ports 21 and be injected into the foundation to achieve grouting. In this embodiment, the blocking mechanism 4 is connected to a blocking drive mechanism 7 for driving the blocking mechanism 4 to rotate so as to switch between the blocking position and the grouting position. Among them, the fixed housing of the blocking drive mechanism 7 can be fixedly mounted on the top support plate of the grouting tube 2, and in particular can be mounted at the middle position of the top surface of the grouting tube 2.

[0022] The retractable mechanism 5 is connected to the grouting hose 3 and is used to retract the grouting hose 3. Specifically, the retractable mechanism 5 can be arranged on one side of the grouting tube 2 (such as Figure 1 As shown on the right side), the grouting hose 3 can be retracted and released, that is, when the grouting tube 2 descends, the retracting mechanism 5 can release the grouting hose 3, so that the grouting hose 3 can descend with the grouting tube 2; and when the grouting tube 2 rises, the retracting mechanism 5 can retract the grouting hose 3 to prevent the grouting hose 3 from being entangled and accumulated on the top surface of the grouting tube 2 and affecting the normal progress of the grouting work.

[0023] The specific implementation method is as follows: by arranging a sealing mechanism 4, it is convenient to seal the grouting port 21 arranged on the grouting tube 2 before grouting, so as to prevent debris or soil from blocking the grouting port 21 and affecting the normal progress of the grouting work; by arranging a retracting and releasing mechanism 5, it is convenient to automatically retract and release the grouting hose 3 during the lifting and lowering process of the grouting tube 2, so as to prevent it from accumulating and entangled on the top surface of the grouting tube 2, which may easily affect the normal progress of the grouting work.

[0024] In this embodiment, a drill bit 8 is provided below the grouting tube 2, a drill drive mechanism 9 is embedded and fixedly connected to the bottom surface of the grouting tube 2, the output end of the drill drive mechanism 9 is connected to the drill bit 8, and the support base plate 1 is located below the drill bit 8 and has a through-tube opening 11. Specifically, the drill bit 8 is provided below the grouting tube 2, the drill drive mechanism 9 is embedded and fixedly connected to the bottom surface of the grouting tube 2, the output end of the drill drive mechanism 9 is fixedly connected to the top of the drill bit 8, and the surface of the support base plate 1 is located below the drill bit 8 and has a through-tube opening 11, so that the grouting tube 2 can smoothly enter the area to be grouted through the drill bit 8.

[0025] Continue to see Figure 1 , Figure 3 A non-slip pad 13 is provided at the bottom of the supporting base plate 1; a moving portion 12 capable of being raised and lowered in a vertical direction is also provided on the supporting base plate 1. In the fixed support state, the moving portion 12 rises to a suspended state, and the non-slip pad 13 contacts the supporting surface to provide fixed support; in the walking state, the moving portion 12 descends to contact the supporting surface and lifts the supporting base plate 1, so that the non-slip pad 13 is suspended in the air, so as to provide mobile support through the moving portion 12 and drive the supporting base plate 1 to move.

[0026] Specifically, the support base plate 1 plays a supporting role. The anti-skid pad 13 is arranged at the bottom of the support base plate 1 (relative to Figure 1 The anti-skid pad 13 can be two strip-shaped structures, which can support both ends of the support base plate 1 (such as Figure 1 The support base plate 1 is provided with a clearance opening 14 at the position corresponding to the moving part 12. The clearance opening 14 is opened through the support base plate 1. The moving part 12 can move up and down at the clearance opening 14, and can rise and be accommodated at the clearance opening 14 to be supported by the anti-skid pad 13. There are also two moving parts 12, which are arranged between the two anti-skid pads 13 to ensure the support stability and movement stability of the support base plate 1.

[0027] In this embodiment, a moving part state sensor, a pad state sensor and a controller may also be provided on the support base plate 1; wherein the moving part state sensor is used to detect whether the moving part is in a suspended state, and can send a moving part state signal of the moving part 12 to the controller. Specifically, the moving part state sensor may be a pressure sensor, which may be provided on the moving part 12, and is used to detect the pressure on the moving part 12, so as to detect whether the moving part 12 is in a suspended state. For example, when the pressure on the moving part 12 is zero, the moving part 12 is in a suspended state; otherwise, the moving part 12 is not in a suspended state, and can send a moving part state signal of the moving part 12 to the controller. Of course, the moving part state sensor may also be other sensors to detect whether the moving part 12 is in a suspended state.

[0028] The pad state sensor is used to detect whether the anti-skid pad 13 is in a suspended state, and send the leg state signal of the anti-skid pad 13 to the controller. Specifically, the pad state sensor can determine the state of the support base plate 1 by detecting whether the anti-skid pad 13 is in a suspended state, combined with the moving part state signal of the moving part 12, that is, when the anti-skid pad 13 is in a suspended state and the moving part 12 is not in a suspended state, the support base plate 1 is in a walking state, and the moving part 12 can drive the sorting device to move as a whole; when the anti-skid pad 13 is not in a suspended state and the moving part 12 is in a suspended state, the support base plate 1 is in a fixed support state.

[0029] The controller is connected to the moving part status sensor and the pad block status sensor respectively, and is used for receiving the moving part status signal emitted by the moving part status sensor and the leg status signal emitted by the pad block status sensor, and controlling the rotation and extension of the anti-slip pad 13 according to the moving part status signal and the leg status signal to realize the switching of the state of the supporting base plate 1, that is, when it is necessary to move to the working position, the anti-slip pad 13 is retracted and rotated to the folded position so that the moving part 12 contacts the supporting surface; when it is necessary to display, the anti-slip pad 13 is rotated to a vertical position and extended to contact the supporting surface, and the supporting base plate 1 is gradually lifted so that the moving part 12 is suspended in the air, and grouting is performed after fixed support by the anti-slip pad 13.

[0030] Continue to see Figure 1 , Figure 3 and Figure 5The moving part 12 may include: a U-shaped connecting plate 121, a mounting plate 122, a telescopic connecting member 123 and a moving wheel 124; wherein the U-shaped connecting plate 121 is arranged on the supporting base plate 1, and the supporting base plate 1 is provided with a clearance opening 14 directly below the U-shaped connecting plate 121; the mounting plate 122 is arranged below the U-shaped connecting plate 121, and a telescopic connecting member 123 is further provided between the mounting plate 122 and the U-shaped connecting plate 121, for controlling the lifting and lowering movement of the mounting plate 122 by extension and retraction; the moving wheel 124 is arranged at the bottom of the mounting plate 122, and under the action of the telescopic connecting member 123, it is lifted and lowered with the mounting plate 122 to realize the switching between the walking state and the fixed support state.

[0031] Specifically, the two U-shaped connecting plates 121 of the two moving parts 12 are fixedly connected to the two ends of the surface of the supporting bottom plate 1, the two mounting plates 122 are respectively located below the two U-shaped connecting plates 121, the two ends of the top surface of the mounting plate 122 are fixedly connected with telescopic connecting members 123, the top surface of the telescopic connecting member 123 is fixedly connected to the corresponding inner top surface of the U-shaped connecting plate 121, the two ends of the bottom surface of the two mounting plates 122 are rotatably connected with universal wheels 124, the two clearance openings 14 are opened through the surface of the supporting bottom plate 1 and are respectively located below the two mounting plates 123, and the two anti-skid pads 13 are respectively fixedly connected to the two ends of the bottom surface of the supporting bottom plate 1, and the stability of the device is greatly improved by the two anti-skid pads 13. Among them, the telescopic connecting member 123 can be a cylinder.

[0032] The specific implementation method is as follows: the moving part 12 is provided to facilitate the storage of the universal wheel 124, so that the anti-slip pad 13 can contact the ground, thereby improving the stability of the device during operation.

[0033] Continue to see Figure 1 , Figure 2 , Figure 7 The blocking mechanism 4 may include: a ring sleeve 41, a plurality of arc-shaped baffles 42, and an L-shaped driving rod 43; wherein the plurality of arc-shaped baffles 42, each of which is arranged on one side of the ring sleeve 41 along the axial direction of the ring sleeve 41 (such as Figure 1 The arc-shaped baffles 42 are arranged at intervals along the circumference of the ring sleeve 41, and one end of each arc-shaped baffle 42 (as shown in FIG. Figure 1 The top end of the L-shaped driving rod 43 is connected to the annular sleeve 41, and is used to rotate to the grouting port 21 to block the grouting port 21, or rotate to the solid part of the grouting tube 2 on one side of the grouting port 21 to make way for the grouting port 21 to open; one end of the L-shaped driving rod 43 (as shown in Figure 7 The left side shown in FIG. 4 is connected to the ring sleeve 41, and the other end (as shown in FIG. Figure 7The right side shown in the figure is used to connect the blocking drive mechanism 7.

[0034] Specifically, the annular sleeve 41 is slidably sleeved on the grouting tube 2, and a plurality of arc-shaped baffles 42 are vertically fixedly connected to the bottom surface of the annular sleeve 41 and are located at a relative position of a plurality of grouting ports 21. The plurality of arc-shaped baffles 42 are all slidably connected to the outer wall of the grouting tube 2. The plurality of arc-shaped baffles 42 are arranged to facilitate blocking the plurality of grouting ports 21 to avoid blockage of the grouting ports 21. The L-shaped driving rod 43 is fixedly connected to one end of the top surface of the annular sleeve 41. Among them, the blocking driving mechanism 7 can be a motor, which can be installed at the middle end of the top surface of the grouting tube 2. The output end of the blocking driving mechanism 7 is fixedly connected to one end of the L-shaped driving rod 43, and the L-shaped driving rod 43 can be driven to rotate with the output end of the blocking driving mechanism 7, so that the annular sleeve 41 rotates on the outer periphery of the grouting tube 2, thereby driving the plurality of arc-shaped baffles 42 to rotate circumferentially. Among them, the plurality of grouting ports 21 are vertically distributed on the side wall of the grouting tube 2 in an annular shape, and the plurality of grouting ports 21 correspond to the plurality of arc-shaped baffles 42 respectively. The blocking drive mechanism 7 may be a motor.

[0035] Continue to see Figures 1 to 3 The storage and release mechanism 5 includes: a storage and release box 51, a counterweight 52 and a rope 53; wherein the counterweight 52 is arranged in the storage and release box 51, and the counterweight 52 can be moved in the storage and release box 51 along the vertical direction (relative to Figure 3 The other end of the grouting hose 3 (as shown in the figure) performs reciprocating linear motion; Figure 3 The right end of the rope 53 is shown in the figure. The rope 53 passes through the receiving and releasing box 51 to extend to the inside, bypasses the bottom of the counterweight block 52, and passes through the receiving and releasing box 51 to extend to the outside to connect to the slurry storage device outside the receiving and releasing box 51. One end of the rope 53 (as shown in the figure) passes through the receiving and releasing box 51 to extend to the inside, bypasses the bottom of the counterweight block 52, and passes through the receiving and releasing box 51 to extend to the outside to connect to the slurry storage device outside the receiving and releasing box 51. Figure 2 The right end as shown in the figure) is arranged through the storage box 51 and extends to the interior of the storage box 51, and is connected to the counterweight block 52, and the other end (as shown in the figure) is arranged through the storage box 51 and extends to the interior of the storage box 51, and is connected to the counterweight block 52. Figure 3 The left end of the grouting tube 2 is placed outside the storage box 51 and connected to the grouting tube 2. When the grouting tube 2 descends, the counterweight 52 is pulled to move upward. When the grouting tube 2 rises, the counterweight 52 moves downward under the action of its own gravity and presses the grouting hose 3, so that the grouting hose 3 is stored in the storage box 51 and the grouting hose 3 is in a straight state.

[0036] Specifically, the storage box 51 can be fixed on the upper side of the support base plate 1, in particular, fixedly connected to the side wall of the U-shaped support plate 61 of one of the lifting drive mechanisms 6. The grouting pump 31 is installed on the top surface of the grouting tube 2, the output end of the grouting pump 31 is connected to the inside of the grouting tube 2, and the input end of the grouting pump 31 is connected to one end of the grouting hose 3 (such as Figure 1The counterweight 52 is arranged in the storage box 51, the rope 53 is fixedly connected to the top surface of the grouting tube 2, and the end of the rope 53 away from the grouting tube 2 passes through the top surface of the storage box 51 and is fixedly connected to the top surface of the counterweight 52. The side wall of the counterweight 52 can be provided with an arc guide groove 521, and the end of the grouting hose 3 away from the grouting pump 31 passes through the bottom of the counterweight 52 and passes through the top surface of the storage box 51 to communicate with the grout storage device, and the side wall of the grouting hose 3 is slidably connected to the inner side wall of the arc guide groove 521.

[0037] In this embodiment, two guide wheels 54 are provided above the support base plate 1, and the height of the two guide wheels 54 is higher than the height of the grouting tube 2 at the highest position; the rope 53 and the grouting hose 3 pass through the two guide wheels 54 and are respectively connected to the two guide wheels 54 in a rolling manner. Specifically, two guide wheels 54 are provided on the top surface of one of the U-shaped support plates 61, and the rope 53 and the grouting hose 3 pass through the two guide wheels 54 and are respectively connected to the two guide wheels 54 in a rolling manner, and the rope 53 and the grouting hose 3 are respectively limited by the two guide wheels 54.

[0038] Continue to see Figures 1 to 3 The lifting drive mechanism 6 includes: a U-shaped support plate 61, a driving screw 62 and a lifting block 63; wherein the driving screw 62 is arranged on the U-shaped support plate 61 along the groove depth direction of the U-shaped support plate 61, and the driving screw 62 can rotate relative to the U-shaped support plate 61, and the driving screw 62 is connected to a lifting drive motor 64 for driving the driving screw 62 to rotate; the lifting block 63 is threadedly connected to the driving screw 62, for converting the rotation of the driving screw 62 into a reciprocating linear motion of the lifting block 63, so as to drive the grouting barrel 2 to perform lifting movement in the vertical direction.

[0039] Specifically, there are two lifting drive mechanisms 6, which are respectively placed on the left and right sides of the grouting tube 2, which can improve the stability of the lifting drive of the grouting tube 2. Two U-shaped support plates 61 are fixedly connected to the two ends of the surface of the support base plate 1, and two lifting blocks 63 are respectively fixedly connected to the tops of the two sides of the grouting tube 2. The two lifting blocks 63 are vertically penetrated by threads and connected with driving screws 62. The bottom ends of the two driving screws 62 are rotatably connected to the surface of the support base plate 1. Two lifting drive motors 64 are respectively installed on the top surfaces of the two U-shaped support plates 61 and are located at the relative positions of the two driving screws 62. The output ends of the two lifting drive motors 64 are respectively fixedly connected to the tops of the corresponding driving screws 62.

[0040] Working principle: When working, first move the device to the specified position through the moving wheel 124, and align the through-tube opening 11 with the grouting position, then the two telescopic connectors 123 respectively drive the corresponding moving wheels 124 to retract until the bottom surface of the anti-slip pad 13 is in contact with the ground, which greatly improves the stability of the device, then the drill drive mechanism 9 drives the drill bit 8 to rotate, and at the same time, the two lifting drive motors 64 respectively drive the two driving screws 62 to rotate, so that the grouting tube 2 moves downward and extends into the foundation until the grouting tube 2 reaches the position to be grouting. During the descent of the grouting tube 2, multiple arc-shaped baffles 42 are used to facilitate the blocking of multiple grouting ports 21 to prevent debris or soil from blocking the grouting ports 21 and affecting the normal progress of the grouting work. During grouting, first the blocking drive mechanism 7 drives the ring sleeve 41 to enter through the L-shaped drive rod 43. The ring sleeve 41 rotates, and the multiple arc-shaped baffles 42 are driven to rotate, so that the multiple grouting ports 21 are exposed, and then the grouting pump 31 is started to introduce the slurry to be grouted into the grouting barrel 2 through the grouting hose 3, and then injected into the foundation through the multiple grouting ports 21 to complete the grouting work. During the descent of the grouting barrel 2, the counterweight 52 is pulled up by the rope 53. At this time, the grouting hose 3 in the storage box 51 will be pulled out with the grouting barrel 2. When the grouting barrel 2 rises, the counterweight 52 descends by its own gravity and presses the grouting hose 3, so that the grouting hose 3 is stored in the storage box 51, so that the grouting hose 3 is in a straight state throughout the whole process, and the grouting hose 3 is prevented from being entangled and accumulated on the top surface of the grouting barrel 2, which is easy to affect the normal progress of the grouting work. The two guide wheels 54 are convenient for guiding the grouting hose 3 and the rope 53 respectively to improve their stability.

[0041] In summary, the grouting device for highway bridge construction provided in this embodiment can be extended into the foundation by adjusting the vertical position of the grouting tube 2 to perform grouting through the grouting port 21; in the process of the grouting tube 2 extending downward into the foundation, the blocking mechanism 4 is rotated to the blocking position to block the grouting ports 21 in each row, so as to avoid the grouting ports 21 being blocked by some debris or soil during the process of the grouting tube 2 being inserted into the foundation, thereby solving the problem that some debris or soil is easy to block the grouting port on the side wall of the hollow rod during the process of the existing hollow rod being inserted into the foundation, affecting the grouting work. After the slurry barrel 2 moves downward into position, the sealing mechanism 4 can also be rotated to the grouting position, so that each row of grouting ports 21 is exposed, so that the slurry in the grouting barrel 2 can flow out from the grouting ports 21 and be injected into the foundation to realize grouting work; when the grouting barrel 2 descends, the grouting hose 3 is released through the retracting mechanism 5, so that the grouting hose 3 can descend with the grouting barrel 2, and when the grouting barrel 2 rises, the retracting mechanism 5 can realize the retraction of the grouting hose 3 to prevent the grouting hose 3 from being entangled and accumulated on the top surface of the grouting barrel 2 and affecting the normal progress of the grouting work.

[0042] Method Example: See also Figure 8, which is a flowchart of a grouting method for highway bridge construction provided by an embodiment of the present invention. As shown in the figure, the grouting method uses the above-mentioned device and includes the following steps: Step S1, switching the supporting bottom plate to a walking state, pushing the grouting device to move, and aligning the grouting barrel with the position to be grouting.

[0043] Specifically, the supporting base plate 1 is moved to a designated position, and the drill bit 8 is aligned with the position to be grouting.

[0044] Step S2, switching the supporting base plate to a fixed supporting state.

[0045] Specifically, the support base plate 1 is switched to a fixed support state so that the anti-skid pads 13 contact the ground for fixed support, that is, the telescopic connector 123 drives the corresponding moving wheel 124 to be retracted into the clearance opening 14 so that the bottom surfaces of the two anti-skid pads 11 contact the ground.

[0046] Step S3, controlling the blocking mechanism to rotate to the blocking position to block the grouting port, and controlling the grouting tube to descend and extend into the foundation until the grouting tube reaches the height position to be grouting.

[0047] Specifically, the plugging drive mechanism 7 can be controlled in advance so that the plugging drive mechanism 7 drives the ring sleeve 41 to rotate, so that the arc-shaped baffle plate 42 rotates to the corresponding position of the grouting port 21 to block the grouting port 21. Then, the drill drive mechanism 9 can be controlled so that the drill drive mechanism 9 drives the drill bit 8 to rotate, and at the same time, the two lifting drive motors 64 are controlled to drive the corresponding two driving screws 62 to rotate, so that the grouting tube 2 descends and extends into the foundation until the grouting tube 2 reaches the grouting position.

[0048] Step S4, controlling the sealing mechanism to rotate the grouting position to expose multiple grouting ports.

[0049] Specifically, the plugging driving mechanism 7 is controlled so that the plugging driving mechanism 7 drives the ring sleeve 41 to rotate, so that the arc-shaped baffle plate 42 rotates, and the grouting port 2 is exposed.

[0050] Step S5, controlling the grouting tube and the grouting hose to inject grouting into the grouting tube, and the injected slurry is injected into the grouting position in the foundation through multiple grouting ports.

[0051] Specifically, the grouting pump 31 is started, the slurry is introduced into the grouting tube 2 through the grouting hose 3, and then injected into the grouting position in the foundation through multiple grouting ports 21. After the grouting is completed, the two lifting drive motors 64 rotate in opposite directions to raise the grouting tube 2 to the starting position.

[0052] Step S6, after the grouting is completed, the grouting cylinder is controlled to rise to above the supporting bottom plate.

[0053] Specifically, the grouting tube 2 will be lifted and lowered with the counterweight 52 , and the counterweight 52 will be lifted and lowered with the grouting hose 3 , so that the grouting hose 3 is always in a straight state.

[0054] In summary, the grouting method for highway bridge construction provided in this embodiment can extend the grouting tube 2 into the foundation by adjusting the vertical position of the grouting tube 2, so as to perform grouting through the grouting port 21; in the process of the grouting tube 2 extending downward into the foundation, the blocking mechanism 4 is rotated to the blocking position to block the grouting ports 21 in each row, so as to avoid the grouting ports 21 being blocked by some debris or soil during the process of the grouting tube 2 being inserted into the foundation, thereby solving the problem that some debris or soil is easy to block the grouting port on the side wall of the hollow rod during the process of the existing hollow rod being inserted into the foundation, affecting the grouting work. After the slurry barrel 2 moves downward into position, the sealing mechanism 4 can also be rotated to the grouting position, so that each row of grouting ports 21 is exposed, so that the slurry in the grouting barrel 2 can flow out from the grouting ports 21 and be injected into the foundation to realize grouting work; when the grouting barrel 2 descends, the grouting hose 3 is released through the retracting mechanism 5, so that the grouting hose 3 can descend with the grouting barrel 2, and when the grouting barrel 2 rises, the retracting mechanism 5 can realize the retraction of the grouting hose 3 to prevent the grouting hose 3 from being entangled and accumulated on the top surface of the grouting barrel 2 and affecting the normal progress of the grouting work.

[0055] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0056] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A grouting device for highway bridge construction, characterized in that: include: A supporting base plate, wherein the supporting base plate has a walking state and a fixed supporting state; A grouting barrel, the grouting barrel is vertically arranged on the supporting bottom plate in a position-adjustable manner, and a plurality of grouting ports are formed through the side wall of the grouting barrel; A grouting hose, one end of which is connected to the top of the grouting barrel and communicated with the grouting barrel, and the other end of which is used to connect to a slurry storage device to inject slurry into the grouting barrel; A plugging mechanism is sleeved on the outer circumference of the grouting tube in a manner that it can rotate relative to the grouting tube, and is used to rotate to a blocking position to block the grouting port, and can move downward with the grouting tube until it extends into the foundation. The plugging mechanism rotates to a grouting position to make way for the grouting port, thereby allowing the slurry in the grouting tube to flow out from the grouting port for grouting; The retractable mechanism is connected to the grouting hose and is used for retracting and extending the grouting hose.

2. The grouting device for highway bridge construction according to claim 1, characterized in that: The blocking mechanism comprises: Ring set; A plurality of arc-shaped baffles, each of which is arranged on one side of the annular sleeve along the axial direction of the annular sleeve, and a plurality of the arc-shaped baffles are arranged at intervals along the circumferential direction of the annular sleeve, one end of each of the arc-shaped baffles is connected to the annular sleeve, and is used to rotate to the grouting port to block the grouting port, or rotate to the solid part of the grouting cylinder on one side of the grouting port to make way for the grouting port to be opened; An L-shaped driving rod has one end connected to the ring sleeve and the other end used to connect to the blocking driving mechanism.

3. The grouting device for highway bridge construction according to claim 1 or 2, characterized in that: The retractable mechanism comprises: Collection and placement boxes; A counterweight block is arranged in the storage box, and the counterweight block can perform reciprocating linear motion in the vertical direction in the storage box; wherein the other end of the grouting hose sequentially passes through the storage box to extend to the inside, bypasses the bottom of the counterweight block, and passes through the storage box to extend to the outside, so as to connect to the grout storage device outside the storage box; A rope, one end of which is passed through the storage box and extends to the interior of the storage box and is connected to the counterweight block, and the other end of which is placed outside the storage box and is connected to the grouting cylinder. When the grouting cylinder descends, the counterweight block is pulled upward. When the grouting cylinder rises, the counterweight block moves downward under the action of its own gravity and presses the grouting hose, so that the grouting hose is stored in the storage box and the grouting hose is in a straight state.

4. The grouting device for highway bridge construction according to claim 3 is characterized in that: Two guide wheels are arranged above the supporting bottom plate, and the heights of the two guide wheels are higher than the height of the grouting cylinder at the highest position; The rope and the grouting hose pass through the two guide wheels respectively and are rollingly connected with the two guide wheels respectively.

5. The grouting device for highway bridge construction according to claim 1 or 2, characterized in that: A drill bit is provided below the grouting cylinder, a drill drive mechanism is embedded and fixedly connected to the bottom surface of the grouting cylinder, an output end of the drill drive mechanism is connected to the drill bit, and the support base plate is located below the drill bit and penetrates through a cylinder opening.

6. The grouting device for highway bridge construction according to claim 1 or 2, characterized in that: The blocking mechanism is connected to a blocking driving mechanism for driving the blocking mechanism to rotate so as to switch between the blocking position and the grouting position; The grouting cylinder is connected with a lifting drive mechanism for driving the grouting cylinder to perform lifting movement in a vertical direction.

7. The grouting device for highway bridge construction according to claim 6, characterized in that: The lifting drive mechanism comprises: U-shaped support plate; A driving screw rod is arranged on the U-shaped support plate along the groove depth direction of the U-shaped support plate, and the driving screw rod can rotate relative to the U-shaped support plate, and the driving screw rod is connected to a lifting driving motor for driving the driving screw rod to rotate; The lifting block is threadedly connected to the driving screw and is used to convert the rotation of the driving screw into the reciprocating linear motion of the lifting block, so as to drive the grouting barrel to perform lifting motion in the vertical direction.

8. The grouting device for highway bridge construction according to claim 1 or 2, characterized in that: The bottom of the supporting base plate is provided with an anti-skid pad; The support bottom plate is also provided with a movable part capable of being lifted and lowered in a vertical direction. In the fixed support state, the movable part rises to a suspended state, and the anti-slip pad contacts the support surface to provide fixed support; In the walking state, the moving part descends to contact the supporting surface and lifts the supporting bottom plate, so that the anti-skid pad is suspended in the air, so that the moving part provides moving support and drives the supporting bottom plate to move.

9. The grouting device for highway bridge construction according to claim 8, characterized in that: The mobile unit comprises: A U-shaped connecting plate is arranged on the supporting bottom plate, and the supporting bottom plate is provided with a clearance opening directly below the U-shaped connecting plate; A mounting plate is arranged below the U-shaped connecting plate, and a telescopic connecting member is provided between the mounting plate and the U-shaped connecting plate, for controlling the lifting movement of the mounting plate by telescoping; The moving wheel is arranged at the bottom of the mounting plate, and under the action of the telescopic connecting member, the moving wheel moves up and down along with the mounting plate to realize the switching between the walking state and the fixed supporting state.

10. A grouting method for highway bridge construction, characterized in that: Grouting is performed using the grouting device for highway bridge construction as described in any one of claims 1 to 9, and the grouting method comprises the following steps: Switch the supporting bottom plate to the walking state, push the grouting device to move, and align the grouting tube with the position to be grouting; Switch the support base plate to a fixed support state; Controlling the blocking mechanism to rotate to the blocking position to block the grouting port, and controlling the grouting tube to descend and extend into the foundation until the grouting tube reaches the height position to be grouting; Control the plugging mechanism to rotate the grouting position to expose multiple grouting ports; Controlling the grouting tube and the grouting hose to inject grout into the grouting tube, and injecting the injected slurry into the grouting position in the foundation through multiple grouting ports; After the grouting is completed, the grouting barrel is controlled to rise above the supporting base plate.

Images