Pier cofferdam device for bridge construction

Abstract

The invention relates to the technical field of water conservancy projects, and particularly discloses a bridge pier cofferdam device for bridge construction, which comprises an engineering vehicle, a bagging mechanism, a lifting limiting mechanism, a control system, an angle regulator, a sand suction pump, a telescopic pipe and a conveyor, the bagging mechanism is arranged on the right side of the engineering vehicle; the lifting limiting mechanism is arranged at the bottom of the bagging mechanism; the control system is arranged in a cab of the engineering vehicle; the angle adjuster is mounted at the bottom end of the left side of the engineering vehicle; the sand suction pump is arranged at the moving end of the angle adjuster in the vertical direction and electrically connected with the control system. According to the device, rapid sandbag filling on a pier cofferdam site is achieved, the filling efficiency is improved, manual operation is reduced, the filling efficiency is improved, automatic compaction of the sandbags is achieved in the filling process, the uniformity and compactness of the filled sandbags are guaranteed, and it is guaranteed that each sandbag is evenly filled.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, in particular to a pier cofferdam device for bridge construction. Background Art

[0002] In the field of water conservancy engineering for bridge construction, the construction of pier cofferdams is a key link. Traditional pier cofferdam devices often have many problems when filling sandbags. On the one hand, the filling method is relatively backward and usually relies on a lot of manual operations. It is necessary to manually carry sand and pack bags, which is not only inefficient, but also consumes manpower and time costs. On the other hand, it is difficult to achieve fast and efficient sandbag filling during the filling process, and it is impossible to meet the progress requirements of the construction site. In addition, manual filling is difficult to ensure the uniformity and density of sandbag filling, which easily leads to uneven quality of sandbags and affects the stability and safety of pier cofferdams. In emergency situations, such as responding to natural disasters such as sudden floods, traditional devices cannot quickly complete the filling of sandbags and the construction of cofferdams, delaying the rescue time. Therefore, it is urgent to develop a pier cofferdam device for bridge construction that can optimize the filling method, improve filling efficiency, reduce manual operations and ensure filling quality. Summary of the invention

[0003] The object of the present invention is to provide a pier cofferdam device for bridge construction to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pier cofferdam device for bridge construction, comprising: an engineering vehicle, a bagging mechanism, a lifting and limiting mechanism, a control system, an angle adjuster, a sand suction pump, a second telescopic tube and a conveyor; the bagging mechanism is arranged on the right side of the engineering vehicle, and is used for conveying, screening, quantitative discharging and bagging of sand; the lifting and limiting mechanism is arranged at the bottom of the bagging mechanism, and is used for lifting and fixing sandbags; the control system is arranged inside the cab of the engineering vehicle; the angle adjuster is installed at the bottom end of the left side of the engineering vehicle, and the angle adjuster is electrically connected to the control system; the sand suction pump is arranged at the moving end of the angle adjuster along the up and down directions, and the sand suction pump is electrically connected to the control system; one end of the second telescopic tube is fixedly connected to the outlet position of the sand suction pump; the conveyor is arranged on the front top of the engineering vehicle along the left and right directions, the feed port of the conveyor is fixedly connected to the other end of the second telescopic tube, and the conveyor is electrically connected to the control system.

[0005] Preferably, the bagging mechanism includes: a bagging mechanism housing, an electric conveyor belt, a first electric push rod, a baffle and a discharge assembly; the bagging mechanism housing is fixedly installed on the right top of the engineering vehicle along the left-right direction; the electric conveyor belt is installed in the inner cavity of the bagging mechanism housing along the left-right direction, and the electric conveyor belt is electrically connected to the control system; the first electric push rod is arranged on the right side of the top end of the bagging mechanism housing along the up-down direction, the telescopic end of the first electric push rod extends into the inner cavity of the bagging mechanism housing, and the first electric push rod is electrically connected to the control system; the baffle is fixedly installed at the bottom of the telescopic end of the first electric push rod and is located above the electric conveyor belt; the discharge assembly is arranged at the right opening at the bottom end of the inner cavity of the bagging mechanism housing.

[0006] Preferably, the bagging mechanism also includes: a cylinder, a feed hopper, a mounting groove, a filter screen, a discharge pipe, a driving module and a rotating bucket; the cylinder is arranged at the left opening at the top end of the bagging mechanism shell in the up and down directions; the feed hopper is arranged at the front opening at the top end of the cylinder, and the discharge pipe of the conveyor is connected to the top end of the inner cavity of the feed hopper; the number of the mounting grooves is several, and several of the mounting grooves are arranged at the bottom end of the inner cavity of the cylinder at intervals along the circumferential direction; the number of the filter screens is several, and several of the filter screens are embedded in the inner cavity of the mounting groove along the circumferential direction; one end of the discharge pipe is installed at the rear opening at the bottom end of the inner cavity of the cylinder, and the other end of the discharge pipe extends out of the rear side of the outer wall of the bagging mechanism shell; the driving module is fixedly installed at the bottom end of the inner cavity of the cylinder, and the driving module is electrically connected to the control system; the number of the rotating buckets is several, and several of the rotating buckets are circumferentially arranged on the outside of the rotating end of the driving module.

[0007] Preferably, the discharging assembly includes: a discharging assembly shell, a discharging pipe and a first telescopic tube; the discharging assembly shell is arranged at the right opening of the bottom end of the inner cavity of the bagging mechanism shell in the up and down directions; the discharging pipe is arranged at the bottom of the inner cavity of the discharging assembly shell; the first telescopic tube is inserted into the inner cavity of the discharging assembly shell, and a limiting block is arranged on the outer side of the first telescopic tube along the circumferential direction; wherein, sedimentation units are arranged on both the front and rear sides of the discharging assembly shell.

[0008] Preferably, the sedimentation unit includes: a mounting plate, a guide rail frame, a movable seat, a gear, a second electric push rod, a rack, a rotating disk, a connecting rod, a limit spring, a rotating rod and a third electric push rod; the mounting plate is arranged on the top of the outer wall of the discharge assembly housing in the left-right direction; the guide rail frame is arranged on the bottom of the mounting plate in the up-down direction; the movable seat is sleeved on the outside of the guide rail frame; the gear is rotatably connected to the bottom of the mounting plate through a pin shaft seat; the second electric push rod is arranged on the bottom of the mounting plate in the left-right direction, and the second electric push rod is electrically connected to the control system; the rack is arranged on the inner side of the second electric push rod in the left-right direction, the rack is fixedly connected to the telescopic end of the second electric push rod, and the rack is meshed with the gear; the rotating disk is fixedly mounted on the inner side of the axis of the gear; the connecting rod is The end is rotatably connected to the inner outer end of the rotating disk through a pin shaft, and the other end of the connecting rod is rotatably connected to the top of the moving seat through a pin shaft; one end of the limit spring is fixedly connected to the top of the moving seat, and the top of the limit spring is fixedly connected to the bottom end of the discharge component housing; the number of the rotating rods is two groups, and the number of the rotating rods in each group is two, and one end of the two groups of rotating rods is respectively rotatably connected to the left and right ends of the outer side of the moving seat through pin shafts, and the shape of the rotating rod is V-shaped; the number of the third electric push rods is two, and the two ends of the two third electric push rods are respectively rotatably connected to the other end of the rotating rods on the front and rear sides of the left and right groups through pin shafts, and the third electric push rod is electrically connected to the control system; wherein, the inner sides of the two groups of rotating rods are provided with fixing components.

[0009] Preferably, the fixing component includes: a connecting shaft, a rotating frame and an elastic band; the number of the connecting shafts is two, and the two connecting shafts are arranged on the inner side of the corners of the rotating rod along the front-to-back direction; the number of the rotating frames is two, and the two rotating frames are fixedly installed on the bottom of the outer walls of the left and right connecting shafts; the number of the elastic bands is two, and the two elastic bands are arranged on the inner bottom of the left and right rotating frames along the front-to-back direction.

[0010] Preferably, the lifting and limiting mechanism includes: a mounting frame and a fixing assembly; the mounting frame is fixedly mounted on the bottom end of the bagging mechanism housing along the up and down directions and is located on the left side of the discharging assembly; the fixing assembly is arranged on the side of the mounting frame.

[0011] Preferably, the fixed assembly includes: a support frame, a fourth electric push rod, a lifting frame, a mounting shell, a clamping frame and a fifth electric push rod; the support frame is arranged on the inner side of the mounting frame along the up-down direction; the fourth electric push rod is arranged on the inner bottom end of the support frame along the up-down direction, the telescopic end of the fourth electric push rod is fixedly connected to the bottom of the movable end of the support frame, and the fourth electric push rod is electrically connected to the control system; the lifting frame is fixedly installed on the top of the movable end of the support frame; the mounting shell is arranged on the right top end of the lifting frame along the front-to-back direction; the number of the clamping frames is two, and the two clamping frames are respectively rotatably connected to the front and rear sides of the mounting shell by pin shafts; the fifth electric push rod is arranged inside the mounting shell, and the two ends of the fifth electric push rod are respectively rotatably connected to the left sides of the front and rear clamping frames by pin shafts, and the fifth electric push rod is electrically connected to the control system.

[0012] Preferably, the lifting frame is in a Z shape.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes rapid sandbag filling on site through the coordinated operation of components such as a sand suction pump, a conveyor, and an electric conveyor belt. The sand suction pump, in cooperation with an angle adjuster, can quickly extract sand from the sand pile and transport it to the bagging mechanism via the conveyor and the feed hopper. The electric conveyor belt and the first electric push rod cooperate to quantitatively discharge sand. The entire process has a high degree of automation, which greatly reduces the operations of manual handling and bagging, improves filling efficiency, and saves manpower and time costs.

[0014] 2. The present invention can screen the sand through the filter screen in the bagging mechanism, remove stones and other debris, and avoid the presence of impurities inside the filled sandbags that affect the quality. During the filling process, the lifting and limiting mechanism and the sedimentation unit cooperate with each other, and the fourth electric push rod, the fifth electric push rod, the second electric push rod and other driving components are used to realize the lifting, clamping and automatic compaction of the sandbags, thereby ensuring the uniformity and density of the filled sandbags, so that each sandbag can be evenly filled, thereby improving the quality of the sandbags, and further enhancing the stability and safety of the bridge pier cofferdam.

[0015] 3. The present invention is applicable to a variety of construction scenarios. Even in an emergency, when faced with unscreened filling sand, it can be processed through the screening function of the device itself to meet construction needs, providing a strong guarantee for the smooth progress of bridge construction.

[0016] In summary, the present invention realizes rapid sandbag filling at the pier cofferdam site, improves filling efficiency, reduces manual operations, and improves filling efficiency. It also realizes automatic compaction of sandbags during the filling process, ensures the uniformity and density of the filled sandbags, and ensures that each sandbag is evenly filled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Exploded diagram of the bagging mechanism; Figure 3 for Figure 2 Exploded view of the discharge assembly; Figure 4 for Figure 3 A magnified image of point A; Figure 5 for Figure 3 Schematic diagram of the local structure; Figure 6 for Figure 1 Exploded diagram of the lifting and limiting mechanism.

[0018] In the figure: 1, engineering vehicle; 2, bagging mechanism; 21, bagging mechanism housing; 22, electric conveyor belt; 23, first electric push rod; 24, baffle; 25, cylinder; 26, feed hopper; 27, mounting slot; 28, filter screen; 29, discharge pipe; 210, drive module; 211, rotating bucket; 3, discharge assembly; 31, discharge assembly housing; 32, discharge pipe; 33, first telescopic pipe; 34, mounting plate; 35, guide rail frame; 36, moving seat; 37, gear; 38, second electric push rod; 3 9. Rack; 310. Rotating disk; 311. Connecting rod; 312. Limiting spring; 313. Rotating rod; 314. Third electric push rod; 315. Connecting shaft; 316. Rotating frame; 317. Elastic belt; 4. Lifting and limiting mechanism; 41. Mounting frame; 42. Support frame; 43. Fourth electric push rod; 44. Lifting frame; 45. Mounting shell; 46. Clamping frame; 47. Fifth electric push rod; 5. Control system; 6. Angle adjuster; 7. Sand suction pump; 8. Second telescopic tube; 9. Conveyor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 6The present invention provides a technical solution: a pier cofferdam device for bridge construction, comprising: an engineering vehicle 1, a bagging mechanism 2, a lifting and limiting mechanism 4, a control system 5, an angle adjuster 6, a sand suction pump 7, a second telescopic tube 8 and a conveyor 9. The engineering vehicle 1 can be driven by a worker to enter the site for use, thereby realizing the on-site sandbag filling operation and avoiding the remote carrying of sandbags by the worker; the bagging mechanism 2 is arranged on the right side of the engineering vehicle 1, and is used for the transportation, screening, quantitative discharging and bagging of sand; the lifting and limiting mechanism 4 is arranged at the bottom of the bagging mechanism 2, and is used for lifting and fixing the sandbags; the control system 5 is arranged inside the cab of the engineering vehicle 1, and the worker can synchronously operate the control system 5 while driving the engineering vehicle 1; the angle adjuster 6 is installed at the bottom end of the left side of the engineering vehicle 1, and the angle adjuster 6 and the control system 5 are electrically connected. The angle adjuster 6 is hydraulically driven by the control system 5. The control system 5 can be controlled to adjust the angle direction of the sand suction pump 7; the sand suction pump 7 is arranged at the moving end of the angle adjuster 6 in the up and down direction, the sand suction pump 7 is electrically connected to the control system 5, and the sand suction pump 7 is controlled by the control system 5 to suck the external sand pile and enter the second telescopic tube 8 under the lifting of its own internal part; one end of the second telescopic tube 8 is fixedly connected to the outlet position of the sand suction pump 7, and the second telescopic tube 8 itself can be telescoped, and then the second telescopic tube 8 maintains the connection state with the conveyor 9 through the second telescopic tube 8 during the process of the sand suction pump 7 being driven to move by the angle adjuster 6; the conveyor 9 is arranged on the front top of the engineering vehicle 1 in the left and right direction, and the feed port of the conveyor 9 is fixedly connected to the other end of the second telescopic tube 8, the conveyor 9 is electrically connected to the control system 5, and the conveyor 9 is controlled by the control system 5 to transport the internal sand horizontally and discharge it into the inner cavity of the cylinder 25 through the feed hopper 26.

[0021] As a preferred solution, further, Figure 2As shown, the bagging mechanism 2 includes: a bagging mechanism housing 21, an electric conveyor belt 22, a first electric push rod 23, a baffle 24, a discharging assembly 3, a cylinder 25, a feed hopper 26, a mounting groove 27, a filter screen 28, a discharge pipe 29, a drive module 210 and a rotating bucket 211; the bagging mechanism housing 21 is fixedly installed on the right top of the engineering vehicle 1 along the left-right direction; the electric conveyor belt 22 is installed in the inner cavity of the bagging mechanism housing 21 along the left-right direction, the electric conveyor belt 22 is electrically connected to the control system 5, the electric conveyor belt 22 is controlled by the control system 5, and the electric conveyor belt 22 can drive the sand to be transported and moved in the horizontal direction; the first electric push rod 23 The first electric push rod 23 is arranged on the right side of the top end of the bagging mechanism housing 21 in the up-down direction, and the telescopic end of the first electric push rod 23 extends into the inner cavity of the bagging mechanism housing 21. The first electric push rod 23 is electrically connected to the control system 5. The first electric push rod 23 is controlled by the control system 5. The first electric push rod 23 can drive the baffle 24 to move up and down by its own extension and shortening; the baffle 24 is fixedly installed at the bottom of the telescopic end of the first electric push rod 23 and is located above the electric conveyor belt 22. The baffle 24 intermittently blocks the sand transported on the surface of the electric conveyor belt 22 to achieve quantitative discharging and filling of sand; the discharging component 3 is arranged on the right side of the bottom end of the inner cavity of the bagging mechanism housing 21. The cylinder 25 is arranged at the left opening of the top end of the bagging mechanism housing 21 in the up-down direction; the feed hopper 26 is arranged at the front opening of the top end of the cylinder 25, and the discharge pipe of the conveyor 9 is connected to the top of the inner cavity of the feed hopper 26; the number of mounting grooves 27 is several, and several mounting grooves 27 are arranged at the bottom end of the inner cavity of the cylinder 25 at intervals along the circumferential direction; the number of filter screens 28 is several, and several filter screens 28 are embedded in the inner cavity of the mounting grooves 27 along the circumferential direction. The filter screen 28 can filter the sand to separate the internal stones and other debris, so that the device is suitable for screening the unscreened filling sand in an emergency; one end of the discharge pipe 29 is provided with Installed at the rear opening of the bottom end of the inner cavity of the cylinder 25, the other end of the discharge pipe 29 extends out of the rear side of the outer wall of the bagging mechanism shell 21, and the discharge pipe 29 can directly discharge stones and other debris to the outside; the driving module 210 is fixedly installed at the bottom end of the inner cavity of the cylinder 25, the driving module 210 is electrically connected to the control system 5, the driving module 210 is controlled by the control system 5, the driving module 210 uses a motor to drive the rotating shaft as a way of rotating the rotating end, and the rotating shaft drives the outer rotating bucket 211 to rotate synchronously; the number of rotating buckets 211 is several, and the several rotating buckets 211 are circumferentially arranged on the outside of the rotating end of the driving module 210.

[0022] As a preferred solution, further, Figure 3 , Figure 4 and Figure 5As shown, the discharging component 3 includes: a discharging component shell 31, a discharging pipe 32 and a first telescopic tube 33; the discharging component shell 31 is arranged at the right opening of the bottom end of the inner cavity of the bagging mechanism shell 21 along the up and down directions; the discharging pipe 32 is arranged at the bottom of the inner cavity of the discharging component shell 31; the first telescopic tube 33 is inserted into the inner cavity of the discharging component shell 31, and a limiting block is arranged circumferentially on the outer side of the first telescopic tube 33. The first telescopic tube 33 can move up and down in the inner cavity of the discharging pipe 32, and the moving range of the first telescopic tube 33 is limited by the limiting block on the outer side of the first telescopic tube 33; wherein, sedimentation units are arranged on the front and rear sides of the discharging component shell 31.

[0023] More specifically, the sedimentation unit includes: a mounting plate 34, a guide rail frame 35, a movable seat 36, a gear 37, a second electric push rod 38, a rack 39, a rotating disk 310, a connecting rod 311, a limit spring 312, a rotating rod 313 and a third electric push rod 314; the mounting plate 34 is arranged at the top of the outer wall of the discharge assembly housing 31 in the left-right direction; the guide rail frame 35 is arranged at the bottom of the mounting plate 34 in the up-down direction; the movable seat 36 is sleeved on the outside of the guide rail frame 35; the gear 37 is rotatably connected to the bottom of the mounting plate 34 through a pin shaft seat; the second electric push rod 38 is arranged at the bottom of the mounting plate 34 in the left-right direction, the second electric push rod 38 is electrically connected to the control system 5, the second electric push rod 38 is controlled by the control system 5, and the third electric push rod 314 is electrically connected to the control system 5. The second electric push rod 38 can drive the rack 39 to move left and right by extending and shortening itself; the rack 39 is arranged on the inner side of the second electric push rod 38 along the left and right direction, and the rack 39 is fixedly connected to the telescopic end of the second electric push rod 38, and the rack 39 is meshed with the gear 37. The gear 37 drives the rotating disk 310 to rotate under the action of the rack 39; the rotating disk 310 is fixedly installed on the inner side of the axis of the gear 37, and the rotating disk 310 can drive one end of the connecting rod 311 to move circumferentially; one end of the connecting rod 311 is rotatably connected to the inner outer end of the rotating disk 310 through a pin shaft, and the other end of the connecting rod 311 is rotatably connected to the top of the moving seat 36 through a pin shaft; one end of the limit spring 312 is fixedly connected to the top of the moving seat 36, and the limit spring 3 The top of 12 is fixedly connected to the bottom end of the discharge component housing 31, and the limit spring 312 plays an auxiliary fixing role; the number of rotating rods 313 is two groups, and the number of rotating rods 313 in each group is two. One end of the two groups of rotating rods 313 is rotatably connected to the left and right ends of the outer side of the moving seat 36 through a pin shaft, and the shape of the rotating rod 313 is V-shaped; the number of third electric push rods 314 is two, and the two ends of the two third electric push rods 314 are rotatably connected to the other ends of the front and rear rotating rods 313 in the left and right groups through a pin shaft, respectively, the third electric push rod 314 is electrically connected to the control system 5, the third electric push rod 314 is controlled by the control system 5, and the third electric push rod 314 can drive the rotating rods 3 on both sides by its own extension and shortening. 13 swings inward and outward; wherein, the inner sides of the two groups of rotating rods 313 are provided with fixing components, which include: connecting shafts 315, rotating frames 316 and elastic bands 317; there are two connecting shafts 315, which are arranged on the inner sides of the corners of the rotating rods 313 along the front-to-back direction; there are two rotating frames 316, which are fixedly installed on the outer wall bottoms of the left and right connecting shafts 315; there are two elastic bands 317, which are arranged on the inner sides of the left and right rotating frames 316 along the front-to-back direction, and the elastic bands 317 themselves are elastic and can be manually adjusted by the staff, thereby tightening and fixing the filled sandbags on the outer bottom of the first telescopic tube 33.

[0024] As a preferred solution, further, Figure 6As shown, the lifting and limiting mechanism 4 includes: a mounting frame 41 and a fixing assembly; the mounting frame 41 is fixedly mounted on the bottom end of the bagging mechanism housing 21 along the up and down directions and is located on the left side of the discharging assembly 3; the fixing assembly is arranged on the side of the mounting frame 41.

[0025] More specifically, the fixed components include: a support frame 42, a fourth electric push rod 43, a lifting frame 44, a mounting shell 45, a clamping frame 46 and a fifth electric push rod 47; the support frame 42 is arranged on the inner side of the mounting frame 41 along the up-down direction, and a moving end is arranged inside the support frame 42, which can move up and down on the outer side of its own internal guide rail frame; the fourth electric push rod 43 is arranged on the inner bottom end of the support frame 42 along the up-down direction, and the telescopic end of the fourth electric push rod 43 is fixedly connected to the bottom of the moving end of the support frame 42, the fourth electric push rod 43 is electrically connected to the control system 5, the fourth electric push rod 43 is controlled by the control system 5, and the fourth electric push rod 43 can drive the moving end of the support frame 42 to move up and down by its own extension and contraction; the lifting frame 44 is fixed Installed on the top of the moving end of the support frame 42, the lifting frame 44 is in a Z shape, and the lifting frame 44 can lift and support the bottom of the sandbag; the mounting shell 45 is arranged at the top right side of the lifting frame 44 along the front and rear direction; there are two clamping frames 46, and the two clamping frames 46 are respectively rotatably connected to the front and rear sides of the mounting shell 45 through pin shafts; the fifth electric push rod 47 is arranged inside the mounting shell 45, and the two ends of the fifth electric push rod 47 are respectively rotatably connected to the left sides of the front and rear clamping frames 46 through pin shafts, the fifth electric push rod 47 is electrically connected to the control system 5, the fifth electric push rod 47 is controlled by the control system 5, and the fifth electric push rod 47 can drive the clamping frame 46 to rotate outward or inward by its own extension and shortening.

[0026] Here’s how it works: Step 1: The external engineering vehicle piles the filled sand at the designated position, the staff puts the sandbag on the bottom of the outer wall of the first telescopic tube 33, and controls the control system 5 to start the third electric push rods 314 on the front and rear sides. The third electric push rods 314 shorten themselves to drive the rotating rods 313 on both sides to rotate inward with the external pin shaft rotation connection of the moving seat 36 as the axis, so that the rotating rods 313 drive the rotating frame 316 to rotate inward with the cooperation of the connecting shaft 315, and then the sandbag is fixed to the outside of the first telescopic tube 33 by the elastic band 317. The staff drives the engineering vehicle 1 to the position of the sand pile, and controls the control system 5 to start the angle regulator 6, the sand suction pump 7 and the conveyor 9 in sequence. The angle regulator 6 adjusts the position and direction of the sand suction pump 7, and keeps the connection with the conveyor 9 through the second telescopic tube 8 during the movement of the sand suction pump 7. The sand suction pump 7 extracts the sand in the sand pile and enters the conveyor 9 through the second telescopic tube 8. The conveyor 9 transports the internal sand in the horizontal direction through the feed hopper 26 and discharges it into the inner cavity of the cylinder 25; Step 2: The staff controls the control system 5 to start the driving module 210, the electric conveyor belt 22, and the first electric push rod 23 in sequence. The driving module 210 drives the outer plurality of rotating buckets 211 to rotate circumferentially, and rotates to the position below the feed hopper 26 in sequence, so that the sand inside the feed hopper 26 is discharged into the inner cavity of the rotating bucket 211. The sand in the inner cavity of the rotating bucket 211 passes through the filter screen 28 in sequence under the action of the rotation force. After being screened by the filter screen 28, the sand passes through the filter screen 28 and is poured onto the surface of the electric conveyor belt 22. The internal stones and other debris are discharged to the outside through the discharge pipe 29, thereby avoiding the presence of debris inside the filled flood control sandbag. The electric conveyor belt 22 transports the sand horizontally from left to right to the inner cavity of the discharge assembly housing 31. The first electric push rod 23 drives the baffle 24 to move up and down by its own intermittent extension and shortening, so as to block the sand during the transportation process of the electric conveyor belt 22, so as to achieve the purpose of quantitative sand discharge. Step 3: The sand transported on the surface of the electric conveyor belt 22 passes through the discharge assembly housing 31, the discharge pipe 32 and the first telescopic pipe 33 into the sandbag in sequence. The staff controls the control system 5 to start the fourth electric push rod 43 and the fifth electric push rod 47 in sequence. The fourth electric push rod 43 drives the lifting frame 44 by its own extension, so that the lifting frame 44 lifts the bottom of the sandbag under the limiting action of the support frame 42. The fifth electric push rod 47 extends to drive the clamping frames 46 on both sides to move outward. The clamping frames 46 rotate inwardly with the pin shaft rotation connection with the mounting housing 45 as the axis, so that the clamping frames 46 on both sides clamp and fix the outside of the sandbag. After the sandbag is filled, the fifth electric push rod 47 shortens to drive the clamping frames 4 on both sides to move outward. The 6-way rotation releases the auxiliary fixing state of the outside of the sandbag, and the staff controls the control system 5 to start the second electric push rods 38 on the front and rear sides. The second electric push rods 38 on both sides drive the second electric push rods 38 to move horizontally in the left and right directions through their own intermittent extension and shortening. The gear 37 drives the rotating disk 310 to rotate under the action of the rotational force of the rack 39, so that the rotating disk 310 drives the axis of one end of the connecting rod 311 to rotate, and the connecting rod 311 drives the moving seat 36. Under the limiting action of the guide frame 35, the moving seat 36 drives the rotating rods 313 on both sides to move back and forth up and down, and then the sandbag is vibrated up and down with the cooperation of the connecting shaft 315, the rotating frame 316 and the elastic belt 317, so that the sand inside the sandbag is more compact.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pier cofferdam device for bridge construction, characterized in that: include: Engineering Vehicle (1); A bagging mechanism (2) is arranged on the right side of the engineering vehicle (1) and is used for conveying, screening, quantitative discharging and bagging of sand; A lifting and limiting mechanism (4) is arranged at the bottom of the bagging mechanism (2) and is used to lift and fix the sandbag; A control system (5) is arranged inside the cab of the engineering vehicle (1); An angle adjuster (6) is installed at the bottom end of the left side of the engineering vehicle (1), and the angle adjuster (6) is electrically connected to the control system (5); A sand suction pump (7) is arranged at the movable end of the angle adjuster (6) in the up-down direction, the sand suction pump (7) is electrically connected to the control system (5), and the angle adjuster (6) is capable of adjusting the angle direction of the sand suction pump (7); A second telescopic tube (8), one end of which is fixedly connected to the outlet of the sand suction pump (7); A conveyor (9) is arranged on the front top of the engineering vehicle (1) in the left-right direction, a feed port of the conveyor (9) is fixedly connected to the other end of the second telescopic tube (8), and the conveyor (9) is electrically connected to the control system (5).

2. A pier cofferdam device for bridge construction according to claim 1, characterized in that: The bagging mechanism (2) comprises: A bagging mechanism housing (21) is fixedly mounted on the top right side of the engineering vehicle (1) along the left-right direction; An electric conveyor belt (22) is installed in the inner cavity of the bagging mechanism housing (21) along the left-right direction, and the electric conveyor belt (22) is electrically connected to the control system (5); A first electric push rod (23) is arranged on the right side of the top end of the bagging mechanism housing (21) in the up-down direction, the telescopic end of the first electric push rod (23) extends into the inner cavity of the bagging mechanism housing (21), and the first electric push rod (23) is electrically connected to the control system (5); A baffle (24) fixedly mounted on the bottom of the telescopic end of the first electric push rod (23) and located above the electric conveyor belt (22); The material discharging assembly (3) is arranged at the right opening of the bottom end of the inner cavity of the bagging mechanism housing (21).

3. A pier cofferdam device for bridge construction according to claim 2, characterized in that: The bagging mechanism (2) further comprises: A cylinder (25) is arranged at the top left opening of the bagging mechanism housing (21) in the up-down direction; A feed hopper (26) is arranged at the front opening of the top end of the cylinder (25), and a discharge pipe of the conveyor (9) is connected to the top end of the inner cavity of the feed hopper (26); A plurality of mounting grooves (27), wherein the plurality of mounting grooves (27) are arranged at intervals along the circumferential direction at the bottom end of the inner cavity of the cylinder (25); A filter screen (28), wherein the number of the filter screens (28) is a plurality, and the plurality of filter screens (28) are embedded in the inner cavity of the mounting groove (27) along the circumferential direction; A discharge pipe (29), one end of which is mounted at the rear opening of the bottom end of the inner cavity of the cylinder (25), and the other end of which extends out of the rear side of the outer wall of the bagging mechanism housing (21); A drive module (210) is fixedly mounted at the bottom end of the inner cavity of the cylinder (25), and the drive module (210) is electrically connected to the control system (5); A rotating bucket (211), wherein the number of the rotating buckets (211) is multiple, and the multiple rotating buckets (211) are arranged along the circumferential direction outside the rotating end of the driving module (210).

4. A pier cofferdam device for bridge construction according to claim 3, characterized in that: The discharging component (3) comprises: A material discharging assembly housing (31) is disposed in the up-down direction at the right opening of the bottom end of the inner cavity of the bagging mechanism housing (21); A discharge pipe (32) is arranged at the bottom of the inner cavity of the discharge assembly housing (31); A first telescopic tube (33) is inserted into the inner cavity of the discharge assembly housing (31), and a limit block is provided on the outer side of the first telescopic tube (33) along the circumferential direction; Wherein, sedimentation units are provided on both the front and rear sides of the discharge assembly housing (31).

5. A pier cofferdam device for bridge construction according to claim 4, characterized in that: The sedimentation unit comprises: A mounting plate (34) disposed on the top of the outer wall of the discharge assembly housing (31) in the left-right direction; A guide rail frame (35) is arranged at the bottom of the mounting plate (34) in the up-down direction; A movable seat (36) sleeved on the outside of the guide rail frame (35); A gear (37) rotatably connected to the bottom of the mounting plate (34) via a pin seat; A second electric push rod (38) is arranged at the bottom of the mounting plate (34) along the left-right direction, and the second electric push rod (38) is electrically connected to the control system (5); A rack (39) is arranged on the inner side of the second electric push rod (38) along the left-right direction, the rack (39) is fixedly connected to the telescopic end of the second electric push rod (38), and the rack (39) is meshed with the gear (37); A rotating disk (310) is fixedly mounted on the inner side of the axis of the gear (37); A connecting rod (311), one end of which is rotatably connected to the inner outer end of the rotating disk (310) via a pin, and the other end of the connecting rod (311) is rotatably connected to the top of the moving seat (36) via a pin; A limit spring (312), one end of which is fixedly connected to the top of the movable seat (36), and the top of the limit spring (312) is fixedly connected to the bottom end of the discharge assembly housing (31); Rotating rods (313), the rotating rods (313) being provided in two groups, each group of the rotating rods (313) being provided with two rotating rods, one end of the two groups of rotating rods (313) being rotatably connected to the left and right ends of the outer side of the movable seat (36) via pins, and the rotating rods (313) being V-shaped; A third electric push rod (314), the number of the third electric push rods (314) being two, the two ends of the two third electric push rods (314) being rotatably connected to the other ends of the front and rear rotating rods (313) in the left and right groups respectively through pin shafts, and the third electric push rods (314) being electrically connected to the control system (5); Wherein, fixing components are arranged on the inner sides of the two groups of rotating rods (313).

6. A pier cofferdam device for bridge construction according to claim 5, characterized in that: The fixing member comprises: A connecting shaft (315), wherein the number of the connecting shafts (315) is two, and the two connecting shafts (315) are arranged inside the corners of the rotating rod (313) along the front-rear direction; A rotating frame (316), wherein the number of the rotating frames (316) is two, and the two rotating frames (316) are fixedly mounted on the bottom of the outer walls of the left and right connecting shafts (315); Elastic bands (317), the number of the elastic bands (317) is two, and the two elastic bands (317) are arranged at the inner bottoms of the left and right rotating frames (316) along the front-to-back direction.

7. A pier cofferdam device for bridge construction according to claim 6, characterized in that: The lifting and limiting mechanism (4) comprises: A mounting frame (41) fixedly mounted at the bottom end of the bagging mechanism housing (21) in the up-down direction and located on the left side of the discharge assembly (3); A fixing assembly is arranged on a side of the mounting frame (41).

8. A pier cofferdam device for bridge construction according to claim 7, characterized in that: The fixing assembly comprises: A support frame (42) arranged on the inner side of the mounting frame (41) in the up-down direction; A fourth electric push rod (43) is arranged at the inner bottom end of the support frame (42) in the up-down direction, the telescopic end of the fourth electric push rod (43) is fixedly connected to the bottom of the movable end of the support frame (42), and the fourth electric push rod (43) is electrically connected to the control system (5); A lifting frame (44) is fixedly mounted on the top of the moving end of the supporting frame (42); A mounting shell (45) is arranged at the top right side of the supporting frame (44) along the front-rear direction; A clamping frame (46), wherein the number of the clamping frames (46) is two, and the two clamping frames (46) are rotatably connected to the front and rear sides of the mounting housing (45) respectively via a pin shaft; A fifth electric push rod (47) is arranged inside the mounting housing (45), and both ends of the fifth electric push rod (47) are rotatably connected to the left sides of the front and rear clamping frames (46) respectively through pin shafts. The fifth electric push rod (47) is electrically connected to the control system (5).

9. A pier cofferdam device for bridge construction according to claim 8, characterized in that: The lifting frame (44) is in a Z shape.

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