A prefabricated box girder auxiliary circulating jacking device

Abstract

The application discloses a prefabricated box girder auxiliary circulating grouting device and belongs to the technical field of box girder manufacturing. The device comprises a boat sleeve, a grouting hose is inserted in the middle of the boat sleeve, and the end of the grouting hose inserted in the inside of the boat sleeve is provided with a clamping texture. The front end of the boat sleeve is provided with a channel cleaning assembly. In use, the grouting hose is inserted into the middle of the boat sleeve, then the screw valve is screwed to lock the abutting ball of the screw valve end against the pressing block, then the pressing block and the parallel texture on the side wall of the grouting hose are clamped together, the driving motor drives the rotation of the matching wheel to advance the rotating propelling device in the hole, and when the boat sleeve reaches the bottom of the hole, grouting is started, and the boat sleeve is pushed outwards while grouting. Compared with the direct grouting method of the prior art, the grouting method of the device can keep the pressure of the hole uniform during the whole grouting process, so that the excessive pressure in the hole is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of box girder manufacturing, in particular to a prefabricated box girder auxiliary circulating grouting device. BACKGROUND

[0002] With the development of industrial technology, modern box girder manufacturing technology is developing more and more perfect, and many box girders need to be made in modern bridge and road construction. In the process of box girder manufacturing, grouting needs to be injected into the hole, and the length of the grouting hole is very large. Directly grouting into the chamber of the hole is easy to cause the appearance of the concrete chamber, which affects the quality of the box girder.

[0003] Like patent No. 202221511326.7 discloses a prefabricated box girder anchor hole sealing grouting device, the prefabricated box girder anchor hole sealing grouting device comprises an anchor device and at least one sealing device; the anchor device is formed with a chamber, at least one side wall of the chamber is provided with an opening, and the outer surface of the anchor device is provided with an exhaust hole and a grouting hole which are in communication with the chamber and are arranged at intervals; the sealing device comprises a sealing cover and an extrusion piece, the sealing cover covers the opening and is detachably installed, and the extrusion piece is used to press the sealing cover on the anchor device. The prefabricated box girder anchor hole sealing grouting device has good sealing effect, the grout is easy to clean, the grouting is compact, the forming effect is good, and the problems of easy leakage of grout and difficult cleaning of grout of the traditional grouting cover are solved.

[0004] The device still has defects in use, one of which is that the device pushes the cement slurry into the hole by hydraulic action, which easily leads to uneven pressure in the hole, and the pressure at the grouting port of the hole is large, while the pressure at the rear end of the hole is small. Such pressure will affect the tension of the box girder concrete, and secondly, there are many protruding impurities in the grouting hole, which will affect the grouting effect. SUMMARY

[0005] The present application aims at the deficiencies of the prior art, and provides a prefabricated box girder auxiliary circulating grouting device. In use, the grouting hose is inserted into the middle of the trolley sleeve, and then the screw valve is tightened to lock the abutting ball of the screw valve end head with the pressing block, so that the pressing block and the parallel lines on the side wall of the grouting hose are locked together. Then the trolley sleeve is inserted into the grouting hole, and the driving motor drives the abutting wheel to rotate the advancing device to move back and forth in the hole. When the trolley sleeve reaches the bottom of the hole, grouting starts, and the trolley sleeve is pushed out at the same time. Compared with the direct grouting method of the prior art, the grouting method of the device can keep the pressure of the hole uniform during the whole grouting process, which avoids excessive pressure in the hole.

[0006] In order to solve the above problems, the application provides the following technical scheme: a prefabricated box girder auxiliary circulating grouting device, which comprises a boat sleeve, a grouting hose is inserted in the middle of the boat sleeve, and the end of the grouting hose inserted in the inside of the boat sleeve is provided with a clamping groove, a locking block is arranged on the inner side wall of the boat sleeve, the front end of the boat sleeve is provided with a channel cleaning assembly, the outer side of the boat sleeve is provided with four bevel chamfers, the front and rear ends of the side wall of the bevel chamfer are provided with a wheel frame, a matching wheel is rotatably installed at the end of the wheel frame, the matching wheel is installed on the output end of a driving motor, the driving motor is fixed on the side wall of the wheel frame, the rear end of the grouting hose is provided with an overhead plate, a lubricating wheel is rotatably installed on the inner side of the overhead plate, and the curved groove on the outer side of the lubricating wheel is clamped on the outer side wall of the grouting hose.

[0007] Further, the clamping groove comprises parallel grooves on the outer side of the grouting hose, the locking block comprises a pressing block, the outer side of the pressing block is provided with an expansion pipe, the inner side of the expansion pipe is slidably inserted with an expansion rod, the expansion rod is fixed on the inner side wall of the boat sleeve, the inner side of the pressing block is provided with a concave surface, the concave surface is provided with parallel stripes that are clamped with the parallel grooves, and the pressing block is connected to the compaction assembly.

[0008] Further, the compaction assembly comprises a threaded sleeve on the outer side wall of the boat sleeve, a screw valve is inserted into the inner side of the threaded sleeve, one end of the screw valve towards the inside is provided with a contact ball, the contact ball is in contact with the side wall of the pressing block, and the material of the contact ball is rubber.

[0009] Further, the clamping groove comprises a locking block, the locking block is detachably installed, the side wall of the boat sleeve is provided with an installation groove matched with the locking block, the outer side of the grouting hose is provided with a spiral groove, and the side wall of the locking block is provided with a spiral strip matched with the spiral groove.

[0010] Further, the channel cleaning assembly comprises a center bearing, the outer ring of the center bearing is fixedly connected with the port of the boat sleeve through a bridge plate, a torsion rod is fixedly installed in the inner ring of the center bearing, the end of the torsion rod is provided with a rotary cutting plate, a plurality of abrasive particles arranged in a ring are detachably installed on the outer side of the rotary cutting plate, and the rotary cutting plate is connected to a power driving mechanism.

[0011] Further, the power driving mechanism comprises a stepping motor, the stepping motor is connected to the inner side wall of the boat sleeve through a seat, a reduction bevel gear is installed on the output end of the stepping motor, a center bevel gear is arranged on the side wall of the rotary cutting plate, and the reduction bevel gear and the center bevel gear are meshed with each other.

[0012] Further, the channel cleaning assembly comprises a suspension which is fixedly connected through four markers and a port of the boat sleeve, a center motor is further arranged on the side wall of the suspension, an output rod is arranged at the output end of the center motor, a grinding plate is arranged at the end of the output rod, and a reverse cleaning assembly is further arranged on one side of the grinding plate.

[0013] Further, the reverse cleaning assembly comprises a reverse plate, a torsion inner ring is arranged in the middle of the reverse plate, the output rod passes through the torsion inner ring, the torsion inner ring is fixedly connected through a fixing sheet and a port side wall of the boat sleeve, a friction ring is further arranged on the reverse plate, a stepping motor is arranged on the suspension, a clamping wheel is installed at the output end of the stepping motor, and the clamping wheel is pressed on the inner side wall of the friction ring.

[0014] Further, the outer sides of the friction ring and the clamping wheel are wrapped with a layer of rubber skin pad.

[0015] Further, the outer side of the clamping wheel is provided with an annular groove, an annular skin bag is installed in the annular groove, and air is injected into the annular skin bag.

[0016] The beneficial effects of the present application are as follows:

[0017] Firstly, when the device is used, the grouting hose is inserted into the middle of the boat sleeve, and then the screw valve is screwed to lock the abutting ball of the screw valve end against the pressing block, so that the pressing block and the parallel lines on the side wall of the grouting hose are clamped together, the boat sleeve is inserted into the grouting hole, and then the driving motor drives the clamping wheel to rotate and the advancing device to move back and forth in the hole, when the boat sleeve reaches the bottom of the hole, grouting is started, and the boat sleeve is pushed out while grouting, compared with the direct grouting method of the prior art, the grouting method of the device can keep the pressure in the hole uniform during the whole grouting process, which avoids excessive pressure in the hole.

[0018] Secondly, in the advancing process of the boat sleeve, the stepping motor drives the center bevel gear to rotate through the reduction bevel gear, the rotary cutting plate rotates with the center bevel gear, and then the grinding particles on the outer side of the rotary cutting plate can remove the protruding particle impurities, which can also make the grouting in the hole more uniform and reduce the resistance of impurities to the slurry.

[0019] Thirdly, the grouting hose passes through the overhead plate, the lubricating wheel can reduce the friction between the grouting hose and the overhead plate, and the traction device is connected to the grouting hose in the process of pushing the boat sleeve out, the pulling speed of the traction device and the sailing speed of the boat sleeve are kept synchronous, and the effect of smooth grouting is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view of the first embodiment of the present application.

[0021] Figure 2A schematic view of the first embodiment of the present application is shown from the side.

[0022] Figure 3 A schematic view of the first embodiment of the present application is shown in cross-section.

[0023] Figure 4 A schematic view of the first embodiment of the present application is shown of the pressing block.

[0024] Figure 5 A schematic view of the first embodiment of the present application is shown of the rotary cutting plate.

[0025] Figure 6 A schematic view of the second embodiment of the present application is shown from the front.

[0026] Figure 7 A schematic view of the second embodiment of the present application is shown in cross-section.

[0027] Figure 8 A schematic view of the second embodiment of the present application is shown of the locking block.

[0028] Figure 9 A schematic view of the second embodiment of the present application is shown of the reverse plate.

[0029] Figure 10 A schematic view of the second embodiment of the present application is shown of the suspension.

[0030] BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Vehicle sleeve 1, bevel chamfer 101, grouting hose 2, parallel lines 201, helical lines 202, locking block 203, wheel carrier 3, fitted wheel 301, drive motor 302, overhead plate 4, lubricating wheel 401, rotary cutting plate 5, abrasive particles 501, center bevel gear 502, torsion bar 503, center bearing 504, bridge plate 505, stepper motor 506, seating 507, reduction bevel gear 508, pressing block 6, threaded sleeve 601, screw valve 602, abutting ball 603, telescopic tube 604, telescopic rod 605, abrasive plate 7, output rod 701, reverse plate 8, friction ring 801, suspension 9, stepper motor 901, clamping wheel 902, center motor 903. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] The first embodiment, with reference to Figures 1 to 5 The precast box girder auxiliary circulating grouting device shown in the figure, characterized in that: including the navigation car sleeve 1, the navigation car sleeve 1 is inserted with the grouting hose 2 in the middle, and the grouting hose 2 is provided with a clamping groove at the end inserted in the navigation car sleeve 1, and the inner wall of the navigation car sleeve 1 is provided with a locking block matched with the clamping groove, the front end of the navigation car sleeve 1 is provided with a channel cleaning assembly, the outer side of the navigation car sleeve 1 is provided with four bevel chamfers 101, and the front and rear ends of the bevel chamfer 101 side wall are provided with wheel frame 3, the end of the wheel frame 3 is rotatably installed with the matching wheel 301, the matching wheel 301 is installed on the output end of the driving motor 302, and the driving motor 302 is fixed on the side wall of the wheel frame 3, the rear end of the grouting hose 2 is provided with an overhead plate 4, the inner side of the overhead plate 4 is rotatably installed with a lubricating wheel 401, and the outer side of the lubricating wheel 401 is provided with a curved groove matched with the outer side wall of the grouting hose 2, the overhead plate 4 is fixedly arranged at the port of the grouting hole, when the device is used, the grouting hose 2 is inserted into the navigation car sleeve 1, the navigation car sleeve 1 is inserted into the grouting hole, then the driving motor 302 drives the matching wheel 301 to rotate and push the device to move back and forth in the hole, when the navigation car sleeve 1 reaches the bottom of the hole, the grouting starts, and the navigation car sleeve is pushed out at the same time, compared with the direct grouting method of the prior art, the grouting method of the device can keep the pressure of the hole uniform in the whole grouting process, which avoids excessive pressure in the hole.

[0035] As Figure 1 , 4As shown, the engaging groove includes parallel grooves 201 on the outside of the grouting hose 2, the locking block includes a pressing block 6, the outside of the pressing block 6 is provided with a telescopic tube 604, the inside of the telescopic tube 604 is slidably inserted with a telescopic rod 605, the telescopic rod 605 is fixed on the inside wall of the car sleeve 1, the inside of the pressing block 6 is provided with a concave surface, the concave surface is provided with parallel stripes that are engaged with the parallel grooves 201, the pressing block 6 is connected to the compaction assembly, when the grouting hose 2 is inserted into the car sleeve 1, the pressing block 6 is folded towards the middle and locked on the outside of the grouting hose 2, the parallel stripes of the pressing block 6 and the grouting hose 2 are locked together, and then the grouting hose 2 is locked by the pressing block 6 and the car sleeve 1, and the pressing block 6 and the grouting hose 2 can be conveniently disassembled.

[0036] As shown in Figure 3 , 4 , the compaction assembly includes a threaded sleeve 601 on the outside wall of the car sleeve 1, the inside of the threaded sleeve 601 is inserted with a screw valve 602, the end of the screw valve 602 towards the inside is provided with a contact ball 603, the contact ball 603 is in contact with the side wall of the pressing block 6, the material of the contact ball 603 is rubber, and rotating the screw valve 602 can lock the pressing block 6 by the contact ball 603 at the end of the screw valve 602, and then the parallel grooves 201 on the side wall of the pressing block 6 and the grouting hose 2 are engaged together, and the contact ball 603 made of rubber can make the pressure between the pressing block 6 and the grouting hose 2 not too rigid.

[0037] As shown in Figure 1 , 2 , the channel cleaning assembly includes a center bearing 504, the outer ring of the center bearing 504 is fixedly connected with the port of the car sleeve 1 through a bridge plate 505, the inner ring of the center bearing 504 is fixedly installed with a torsion rod 503, the end of the torsion rod 503 is provided with a rotary cutting plate 5, the outside of the rotary cutting plate 5 is detachably installed with a plurality of abrasive particles 501 arranged in a ring shape, the rotary cutting plate 5 is connected to a power driving mechanism, and in the process of rotating, the abrasive particles 501 on the outside of the rotary cutting plate 5 can remove the protruding impurities on the inside wall of the hole, preventing the protrusions from affecting grouting.

[0038] As shown in Figure 5 , the power driving mechanism includes a stepping motor 506, the stepping motor 506 is connected to the inside wall of the car sleeve 1 through a seat 507, the output end of the stepping motor 506 is installed with a reduction cone gear 508, the side wall of the rotary cutting plate 5 is provided with a center cone gear 502, the reduction cone gear 508 and the center cone gear 502 are engaged with each other, in the process of advancing, the stepping motor 506 drives the center cone gear 502 to rotate through the reduction cone gear 508, and the rotary cutting plate 5 rotates together with the center cone gear 502.

[0039] AsFigure 1 、 2 As shown in the figure, the outer side of the fitting wheel 301 is provided with an annular groove, and an annular skin bag is installed in the annular groove. Air is injected into the annular skin bag. Different pressures of air are injected into the annular skin bag according to different construction conditions. When the diameter of the hole is slightly larger, more air with greater pressure is added to the annular skin bag.

[0040] The second embodiment, referring to Figures 6 to 10 The utility model relates to a kind of prefabricated box girder auxiliary circulating pressure grouting devices, it is characterized by including boat car sleeve 1, grouting hose 2 is inserted in the middle of boat car sleeve 1, and the end of grouting hose 2 inserted in the inside of boat car sleeve 1 is provided with engagement line, the inner wall of boat car sleeve 1 is provided with the dead block matched with engagement line, the front end of boat car sleeve 1 is provided with passageway cleaning component, the outer side of boat car sleeve 1 is provided with four bevel chamfers 101, and the front and rear ends of bevel chamfer 101 side wall are provided with wheel frame 3, the end of wheel frame 3 is rotatably installed with fitting wheel 301, fitting wheel 301 is installed on the output end of driving motor 302, driving motor 302 is fixed on the side wall of wheel frame 3, the rear end of grouting hose 2 is provided with overhead plate 4, lubricating wheel 401 is rotatably installed in the inner side of overhead plate 4, the curve groove of lubricating wheel 401 outer side is clamped in the outer side wall of grouting hose 2, the overhead plate 4 is fixedly provided at the port of pressure grouting hole, when using, grouting hose 2 is inserted into the middle of boat car sleeve 1, boat car sleeve 1 is inserted into grouting hole, then driving motor 302 drives fitting wheel 301 to rotate and advance device to go back and forth in hole, when boat car sleeve 1 reaches hole bottom, grouting is started, while grouting, boat car sleeve is pushed outwards, compared with the direct grouting mode of prior art, the grouting method of the device can keep the pressure of hole uniform in the whole grouting process, so that excessive pressure in hole is avoided.

[0041] As shown in the figure, Figure 8 The engagement line includes locking block 203, locking block 203 is detachably installed, and the side wall of boat car sleeve 1 is provided with installation groove matched with locking block 203, the outer side of grouting hose 2 is provided with spiral thread 202, the side wall of locking block 203 is provided with spiral strip matched with spiral thread 202, and spiral thread 202 of grouting hose 2 is aligned and screwed into locking block 203, this installation and disassembly mode does not need to move the position of locking block 203, and it is simple to operate and saves time.

[0042] As shown in the figure, Figure 9As shown, the channel cleaning assembly comprises a suspension 9, which is fixedly connected through four markers and the port of the boat sleeve 1, and a center motor 903 is arranged on the side wall of the suspension 9, an output rod 701 is arranged at the output end of the center motor 903, and a grinding plate 7 is arranged at the end of the output rod 701, and a reverse cleaning assembly is further arranged on one side of the grinding plate 7, the center motor 903 drives the grinding plate 7 to rotate, and the grinding plate 7 is adhered to the inner side wall of the hole to perform grinding cutting work.

[0043] As shown in the figure, Figure 9 The reverse cleaning assembly comprises a reverse plate 8, a torsion inner ring is arranged in the middle of the reverse plate 8, the output rod 701 passes through the torsion inner ring, and the torsion inner ring is fixedly connected through a fixed sheet and the port side wall of the boat sleeve 1, a friction ring 801 is further arranged on the reverse plate 8, a stepping motor 901 is arranged on the suspension 9, a clamping wheel 902 is mounted at the output end of the stepping motor 901, the clamping wheel 902 is pressed on the inner side wall of the friction ring 801, the stepping motor 901 drives the friction ring 801 to rotate through the clamping wheel 902, the reverse plate 8 rotates together with the friction ring 801, and the rotating directions of the reverse plate 8 and the grinding plate 7 are opposite, which increases the grinding cutting effect of the hole dirt.

[0044] As shown in the figure, Figure 9 The outer sides of the friction ring 801 and the clamping wheel 902 are wrapped with a layer of rubber skin pad, the rubber skin pad between the friction ring 801 and the clamping wheel 902 increases the friction, and reduces the slipping between the friction ring 801 and the clamping wheel 902, if the grinding cutting pressure is too large, the friction ring 801 and the clamping wheel 902 will slip and jump over this dirt stage.

[0045] As shown in the figure, Figure 1 , 2 The outer side of the clamping wheel 301 is provided with an annular groove, and an annular skin bag is mounted in the annular groove, air is injected into the annular skin bag, different pressures of air are injected into the annular skin bag according to different construction conditions, and when the diameter of the hole is slightly larger, air with a larger pressure is added to the annular skin bag.

[0046] Working principle: the first embodiment, the device in use, the grouting hose 2 into the middle of the car sleeve 1, the car sleeve 1 into the grouting hole, and then drive motor 302 with the wheel 301 rotation to advance the device in the hole to and fro, until the car sleeve 1 to the bottom of the hole when the grouting, grouting while pushing the car sleeve out, compared with the prior art directly grouting method, the device can maintain the overall process of grouting hole pressure uniform, which avoids the hole to produce excessive pressure, grouting hose 2 into the car sleeve 1, the pressure block 6 to the middle of the grouting hose 2 outside, the pressure block 6 and grouting hose 2 parallel stripes will be locked together, and the grouting hose 2 through the pressure block 6 and car sleeve 1 lock, and the pressure block 6 and grouting hose 2 between the convenient disassembly, screw valve 602 let screw valve 602 end of the ball 603 lock pressure block 6, and the pressure block 6 and grouting hose 2 side wall on the parallel lines 201 together, the rubber material of the ball 603 can be further pressure between the pressure block 6 and grouting hose 2 is not too rigid, spin cutting plate 5 in the process of rotation, spin cutting plate 5 outside the abrasive particles 501 will remove the hole inside wall of the protruding impurities, to prevent the influence of the protruding material on the grouting, car sleeve 1 in the process of advancing, stepper motor 506 through the reduction bevel gear 508 drive center bevel gear 502 rotation, spin cutting plate 5 with center bevel gear 502 a rotation, according to the different construction conditions into the annular bladder into different pressure air, the diameter of the hole is slightly larger, add more pressure air into the annular bladder.

[0047] Working principle: the second embodiment, the device in use, the grouting hose 2 into the middle of the car sleeve 1, the car sleeve 1 into the grouting hole, and then drive the motor 302 with the wheel 301 rotation propulsion device in the hole to and fro, until the car sleeve 1 to the bottom of the hole when the grouting, grouting while pushing the car sleeve out, compared with the prior art directly grouting method, the device can keep the whole process of grouting in the hole pressure uniform, which avoids the hole in the excessive pressure, grouting hose 2 spiral 202 locking block 203 into the rotation, this installation and disassembly method without moving the position of the locking block 203, simple operation and save time, the center motor 903 with the grinding plate 7 rotation, grinding plate 7 on the inside wall of the hole on the grinding work, stepper motor 901 through the engagement wheel 902 with the friction ring 801 rotation, reverse plate 8 with friction ring 801 together, the rotation direction of the reverse plate 8 and grinding plate 7 is opposite, which increases the effect of hole debris grinding, the rubber pad between the friction ring 801 and the engagement wheel 902 increases the friction, reduces the slip between the friction ring 801 and the engagement wheel 902, if the pressure of grinding is too large, and then the friction ring 801 and the engagement wheel 902 will slip through this debris stage, according to the different construction conditions into the different pressure of the air ring skin bag, the diameter of the hole is slightly larger, and then add more pressure to the air ring skin bag.

[0048] The above is only the preferred embodiment of the present application, not any limit to the technical scope of the present application, so any minor modification, equivalent change and modification of the above embodiment according to the technical essence of the present application, still belongs to the technical solution of the present application.

Claims

1. A precast box girder auxiliary circulating grouting device, characterized in that: The system includes a gantry sleeve (1), with a grouting hose (2) inserted through the middle of the gantry sleeve (1). The end of the grouting hose (2) inserted inside the gantry sleeve (1) has a locking groove. A locking block matching the locking groove is provided on the inner wall of the gantry sleeve (1). A channel cleaning component is provided at the front end of the gantry sleeve (1). Four chamfered edges (101) are provided on the outer side of the gantry sleeve (1), and wheel frames are provided at both the front and rear ends of the chamfered edges (101). 3) A fitting wheel (301) is rotatably installed at the end of the wheel frame (3). The fitting wheel (301) is installed on the output end of the drive motor (302). The drive motor (302) is fixed on the side wall of the wheel frame (3). An overhead plate (4) is provided at the rear end of the grouting hose (2). A lubricating wheel (401) is rotatably installed on the inner side of the overhead plate (4). The curved groove on the outer side of the lubricating wheel (401) is engaged with the outer side wall of the grouting hose (2). The overhead plate (4) is fixedly installed at the port of the grouting hole.

2. The precast box girder auxiliary circulating grouting device according to claim 1, characterized in that: The interlocking pattern includes parallel lines (201) on the outside of the grouting hose (2), the locking block includes a pressing block (6), a telescopic tube (604) is provided on the outside of the pressing block (6), a telescopic rod (605) is slidably inserted on the inside of the telescopic tube (604), the telescopic rod (605) is fixed on the inner wall of the gantry sleeve (1), the inner side of the pressing block (6) is provided with a concave curved surface, and parallel stripes that interlock with the parallel lines (201) are provided on the concave curved surface, and the pressing block (6) is connected to the compaction component.

3. The precast box girder auxiliary circulating grouting device according to claim 2, characterized in that: The compaction assembly includes a threaded sleeve (601) on the outer wall of the trolley sleeve (1), a screw valve (602) is inserted inside the threaded sleeve (601), and an abutment ball (603) is provided at the inward end of the screw valve (602). The abutment ball (603) abuts against the side wall of the pressing block (6), and the abutment ball (603) is made of rubber.

4. The precast box girder auxiliary circulating grouting device according to claim 1, characterized in that: The locking pattern includes a locking block (203), which is detachable and installable. The side wall of the gantry sleeve (1) is provided with an installation groove that matches the locking block (203). The outer side of the grouting hose (2) is provided with a spiral pattern (202), and the side wall of the locking block (203) is provided with a spiral strip that matches the spiral pattern (202).

5. The precast box girder auxiliary circulating grouting device according to claim 1, characterized in that: The channel cleaning assembly includes a central bearing (504), the outer ring of which is fixedly connected to the port of the bridge plate (505) and the trolley sleeve (1). A torsion bar (503) is fixedly installed in the inner ring of the central bearing (504). A rotary cutting plate (5) is provided at the end of the torsion bar (503). Several abrasive particles (501) arranged in a ring are detachably installed on the outer side of the rotary cutting plate (5). The rotary cutting plate (5) is connected to the power drive mechanism.

6. The precast box girder auxiliary circulating grouting device according to claim 5, characterized in that: The power drive mechanism includes a stepper motor (506), which is connected to the inner wall of the trolley sleeve (1) via a seat (507). A reduction bevel gear (508) is installed at the output end of the stepper motor (506), and a center bevel gear (502) is provided on the side wall of the rotary cutting plate (5). The reduction bevel gear (508) and the center bevel gear (502) mesh with each other.

7. The precast box girder auxiliary circulating grouting device according to claim 1, characterized in that: The channel cleaning assembly includes a suspension (9), which is fixedly connected to the port of the trolley sleeve (1) via four markers. A central motor (903) is also provided on the side wall of the suspension (9). An output rod (701) is provided at the output end of the central motor (903). A grinding plate (7) is provided at the end of the output rod (701). A reverse cleaning assembly is also provided on one side of the grinding plate (7).

8. The precast box girder auxiliary circulating grouting device according to claim 7, characterized in that: The reverse cleaning assembly includes a reverse plate (8), with a torsion inner ring in the middle of the reverse plate (8). An output rod (701) passes through the torsion inner ring. The torsion inner ring is fixedly connected to the port side wall of the trolley sleeve (1) through a fixing plate. A friction ring (801) is also provided on the reverse plate (8). A stepper motor (901) is provided on the suspension (9). A locking wheel (902) is installed at the output end of the stepper motor (901). The locking wheel (902) is pressed against the inner side wall of the friction ring (801).

9. The precast box girder auxiliary circulating grouting device according to claim 8, characterized in that: The friction ring (801) and the engagement wheel (902) are both wrapped with a layer of rubber pads on their outer sides.

10. A precast box girder auxiliary circulating grouting device according to any one of claims 1-9, characterized in that: The outer side of the bonding wheel (301) is provided with an annular groove, and an annular bladder is installed in the annular groove, and air is injected into the annular bladder.

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