A pier cofferdam device for bridge construction

Abstract

The present invention relates to the technical field of water conservancy engineering, and specifically discloses 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 telescopic pipe, and a conveyor; the bagging mechanism is arranged on the right side of the engineering vehicle; the lifting and limiting mechanism is arranged at the bottom of the bagging mechanism; the control system is arranged inside the cab of the engineering vehicle; the angle adjuster is installed at the left bottom end of the engineering vehicle; the sand suction pump is arranged along the up and down direction on the movable end of the angle adjuster, and the sand suction pump is electrically connected to the control system. The present invention realizes the rapid sandbag filling at the pier cofferdam site, improves the filling efficiency, reduces manual operation, and improves the filling efficiency. Moreover, it realizes the 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.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic engineering, and particularly to a pier cofferdam device for bridge construction. Background Art

[0002] In the field of hydraulic engineering for bridge construction, pier cofferdam construction is a key link. In the traditional pier cofferdam device, when filling sandbags, there are often many problems. On the one hand, the filling method is relatively backward, usually relying on a large number of manual operations, which requires manual handling of sand and bagging. This not only has low efficiency but also consumes a lot of labor and time costs. On the other hand, it is difficult to achieve rapid and efficient sandbag filling during the filling process, and it cannot 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 the pier cofferdam. In case of emergencies, such as coping with natural disasters like sudden floods, the traditional device cannot quickly complete the filling of sandbags and the construction of the cofferdam, thus delaying the emergency rescue time. Therefore, it is extremely urgent to develop a pier cofferdam device for bridge construction that can optimize the filling method, improve the filling efficiency, reduce manual operations, and ensure the filling quality. Summary of the Invention

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

[0004] To achieve the above purpose, the present invention provides the following technical solution: 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 pipe, and a conveyor; the bagging mechanism is arranged on the right side of the engineering vehicle and is used for the transportation, 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 the sandbag; the control system is arranged inside the cab of the engineering vehicle; the angle adjuster is installed at the left bottom end of the engineering vehicle, and the angle adjuster is electrically connected to the control system; the sand suction pump is arranged vertically on the mobile end of the angle adjuster, and the sand suction pump is electrically connected to the control system; one end of the second telescopic pipe is fixedly connected to the outlet position of the sand suction pump; the conveyor is arranged horizontally on the top of the front side of the engineering vehicle, the feeding port of the conveyor is fixedly connected to the other end of the second telescopic pipe, 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 at the right top of the engineering vehicle in the left-right direction; the electric conveyor belt is installed in the inner cavity of the bagging mechanism housing in the left-right direction, and the electric conveyor belt is electrically connected to the control system; the first electric push rod is arranged in the upper-lower direction at the right side of the top of the bagging mechanism housing, and 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 further includes: a cylinder body, a feed hopper, mounting grooves, filter screens, discharge pipes, a drive module, and a rotating hopper; the cylinder body is arranged in the upper-lower direction at the left opening at the top of the bagging mechanism housing; the feed hopper is arranged at the front opening at the top of the cylinder body, 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 mounting grooves are circumferentially spaced and opened at the bottom end of the inner cavity of the cylinder body; the number of the filter screens is several, and several filter screens are circumferentially embedded in the inner cavities of the mounting grooves; one end of the discharge pipe is installed at the rear opening at the bottom end of the inner cavity of the cylinder body, and the other end of the discharge pipe extends out of the rear wall of the bagging mechanism housing; the drive module is fixedly installed at the bottom end of the inner cavity of the cylinder body, and the drive module is electrically connected to the control system; the number of the rotating hoppers is several, and several rotating hoppers are circumferentially arranged outside the rotating end of the drive module.

[0007] Preferably, the discharge assembly includes: a discharge assembly housing, a discharge pipe, and a first telescopic pipe; the discharge assembly housing is arranged in the upper-lower direction at the right opening at the bottom end of the inner cavity of the bagging mechanism housing; the discharge pipe is arranged at the bottom of the inner cavity of the discharge assembly housing; the first telescopic pipe is inserted into the inner cavity of the discharge assembly housing, and a limiting block is arranged circumferentially on the outer side of the first telescopic pipe; wherein, sedimentation units are arranged on both the front and rear sides of the discharge assembly housing.

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

[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 inside the corners of the rotating rods along the front-rear direction; the number of the rotating frames is two, and the two rotating frames are fixedly installed at 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 at the bottom of the inner sides of the left and right rotating frames along the front-rear direction.

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

[0011] Preferably, the fixing component includes: a support frame, a fourth electric push rod, a lifting frame, an installation housing, a clamping frame, and a fifth electric push rod; the support frame is arranged inside the installation frame in the vertical direction; the fourth electric push rod is arranged at the bottom end inside the support frame in the vertical direction, and the telescopic end of the fourth electric push rod is fixedly connected to the bottom of the moving end of the support frame. The fourth electric push rod is electrically connected to the control system; the lifting frame is fixedly installed at the top of the moving end of the support frame; the installation housing is arranged at the top right end of the lifting frame in the front-rear 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 installation housing through pin shafts; the fifth electric push rod is arranged inside the installation housing, 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 through pin shafts. 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 beneficial effects of the present invention are as follows:

[0014] 1. Through the coordinated operation of components such as a sand suction pump, a conveyor, and an electric conveyor belt, the present invention realizes the rapid filling of sandbags on site. With the cooperation of an angle adjuster, the sand suction pump can quickly extract sand from the sand pile, and the sand is transported to the bagging mechanism through the conveyor and the feed hopper. The electric conveyor belt and the first electric push rod cooperate to quantitatively discharge sand. The whole process has a high degree of automation, greatly reducing the manual handling and bagging operations, improving the filling efficiency, and saving labor and time costs.

[0015] 2. The filter screen in the bagging mechanism of the present invention can screen the sand to remove impurities such as stones, avoiding the influence of impurities inside the filled sandbags on the quality. During the filling process, the lifting and limiting mechanism and the settlement unit cooperate. Through driving components such as the fourth electric push rod, the fifth electric push rod, and the second electric push rod, the lifting, clamping, and automatic compaction of the sandbags are realized, ensuring the uniformity and density of the filled sandbags, enabling each sandbag to be evenly filled, improving the quality of the sandbags, and further enhancing the stability and safety of the pier cofferdam.

[0016] 3. The present invention is applicable to various construction scenarios. Even in an emergency, in the face of unfractionated filling sand, it can be processed through the device's own screening function to meet the construction requirements, providing a strong guarantee for the smooth progress of bridge construction.

[0017] In summary, the present invention realizes the rapid filling of sandbags at the pier cofferdam site, improves the filling efficiency, reduces manual operations, and enhances the filling efficiency. During the filling process, the automatic compaction of the sandbags is realized, ensuring the uniformity and density of the filled sandbags, and ensuring that each sandbag is evenly filled. Description of the Drawings

[0018] Figure 1 This is a schematic structural diagram of the present invention;

[0019] Figure 2 is Figure 1 an exploded view of the bagging mechanism;

[0020] Figure 3 is Figure 2 an exploded view of the discharging assembly;

[0021] Figure 4 is Figure 3 an enlarged view of part A of;

[0022] Figure 5 is Figure 3 a schematic diagram of the local structure of;

[0023] Figure 6 is Figure 1 an exploded view of the lifting and limiting mechanism.

[0024] 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 body; 26, feed hopper; 27, installation groove; 28, filter screen; 29, discharge pipe; 210, drive module; 211, rotating hopper; 3, discharging assembly; 31, discharging 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; 39, rack; 310, rotating disc; 311, connecting rod; 312, limiting spring; 313, rotating rod; 314, third electric push rod; 315, connecting shaft; 316, rotating frame; 317, elastic band; 4, lifting and limiting mechanism; 41, mounting frame; 42, support frame; 43, fourth electric push rod; 44, lifting frame; 45, mounting housing; 46, clamping frame; 47, fifth electric push rod; 5, control system; 6, angle adjuster; 7, sand suction pump; 8, second telescopic pipe; 9, conveyor. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-6, the present invention provides a technical solution: a pier cofferdam device for bridge construction, comprising: a work 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 pipe 8 and a conveyor 9. The work vehicle 1 can be driven by workers into the site for use, thereby realizing the on-site sandbag filling operation and avoiding the remote handling of sandbags by workers; the bagging mechanism 2 is arranged on the right side of the work vehicle 1 and is used for the conveying, 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 work vehicle 1, and the workers can operate the control system 5 synchronously during the driving of the work vehicle 1; the angle adjuster 6 is installed at the left bottom end of the work vehicle 1, the angle adjuster 6 is electrically connected to the control system 5, and the angle adjuster 6 is hydraulically driven and controlled by the control system 5 to be able to adjust the angular direction of the sand suction pump 7; the sand suction pump 7 is arranged vertically on the moving end of the angle adjuster 6, 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 be able to suck the external sand pile and enter the second telescopic pipe 8 through its own internal lifting; one end of the second telescopic pipe 8 is fixedly connected to the outlet position of the sand suction pump 7, and the second telescopic pipe 8 itself can be telescoped, so as to maintain the connection state with the conveyor 9 through the second telescopic pipe 8 during the movement of the sand suction pump 7 driven by the angle adjuster 6; the conveyor 9 is arranged horizontally on the top of the front side of the work vehicle 1, the feed inlet of the conveyor 9 is fixedly connected to the other end of the second telescopic pipe 8, the conveyor 9 is electrically connected to the control system 5, and the conveyor 9 is controlled by the control system 5 to horizontally convey the internal sand and discharge it into the inner cavity of the cylinder 25 through the feed hopper 26.

[0027] As a preferred solution, further, as Figure 2As shown in the figure, 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 body 25, a feed hopper 26, a mounting groove 27, a filter screen 28, a discharge pipe 29, a driving module 210 and a rotating hopper 211; the bagging mechanism housing 21 is fixedly installed at the right top of the engineering vehicle 1 in the left-right direction; the electric conveyor belt 22 is installed in the inner cavity of the bagging mechanism housing 21 in 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 conveyed and moved horizontally; the first electric push rod 23 is arranged in the upper-lower direction at the right top of the bagging mechanism housing 21, 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, and the first electric push rod 23 can drive the baffle 24 to move up and down by its own elongation 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, and the baffle 24 intermittently blocks the sand conveyed on the surface of the electric conveyor belt 22 to achieve quantitative discharging and filling of the sand; the discharging assembly 3 is arranged at the right bottom opening of the inner cavity of the bagging mechanism housing 21; the cylinder body 25 is arranged in the upper-lower direction at the left top opening of the bagging mechanism housing 21; the feed hopper 26 is arranged at the front top opening of the cylinder body 25, and the discharge pipe of the conveyor 9 is connected to the top inner cavity of the feed hopper 26; the number of the mounting grooves 27 is several, and several mounting grooves 27 are circumferentially spaced and opened in the bottom inner cavity of the cylinder body 25; the number of the filter screens 28 is several, and several filter screens 28 are circumferentially embedded in the inner cavity of the mounting grooves 27, and the filter screens 28 can filter the sand to separate sundries such as stones inside, so that the device is applicable to screening operations on unfractionated filling sand in emergency situations; one end of the discharge pipe 29 is installed at the rear bottom opening of the inner cavity of the cylinder body 25, and the other end of the discharge pipe 29 extends out of the rear wall of the bagging mechanism housing 21, and the discharge pipe 29 can directly discharge sundries such as stones to the outside; the driving module 210 is fixedly installed at the bottom inner cavity of the cylinder body 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 a rotating shaft and rotates as a rotating end, and the rotating shaft drives the outer rotating hopper 211 to rotate synchronously; the number of the rotating hoppers 211 is several, and several rotating hoppers 211 are circumferentially arranged outside the rotating end of the driving module 210.

[0028] As a preferred solution, further, as Figure 3 , Figure 4 and Figure 5As shown in the figure, the discharging assembly 3 includes: a discharging assembly housing 31, a discharging pipe 32, and a first telescopic pipe 33; the discharging assembly housing 31 is arranged at the right opening at the bottom end of the inner cavity of the bagging mechanism housing 21 in the up and down direction; the discharging pipe 32 is arranged at the bottom of the inner cavity of the discharging assembly housing 31; the first telescopic pipe 33 is inserted into the inner cavity of the discharging assembly housing 31, a limiting block is arranged circumferentially on the outer side of the first telescopic pipe 33, and the first telescopic pipe 33 can move up and down in the inner cavity of the discharging pipe 32, and the moving range of the first telescopic pipe 33 is limited by the limiting block on the outer side of the first telescopic pipe 33; wherein, sedimentation units are arranged on both the front and back sides of the discharging assembly housing 31.

[0029] More specifically, the sedimentation unit includes: a mounting plate 34, a guide rail frame 35, a moving seat 36, a gear 37, a second electric push rod 38, a rack 39, a rotating disc 310, a connecting rod 311, a limiting spring 312, a rotating rod 313, and a third electric push rod 314; the mounting plate 34 is arranged on 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 moving seat 36 is sleeved outside 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 second electric push rod 38 can drive the rack 39 to move left and right through its own elongation and shortening; the rack 39 is arranged inside the second electric push rod 38 in the left-right direction, the rack 39 is fixedly connected to the telescopic end of the second electric push rod 38, the rack 39 meshes with the gear 37, and the gear 37 drives the rotating disc 310 to rotate under the action of the rack 39; the rotating disc 310 is fixedly installed inside the axis of the gear 37, and the rotating disc 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 outer end of the inner side of the rotating disc 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 limiting spring 312 is fixedly connected to the top of the moving seat 36, and the top of the limiting spring 312 is fixedly connected to the bottom end of the discharge assembly housing 31, and the limiting spring 312 plays an auxiliary fixing role; the number of the rotating rods 313 is two groups, the number of each group of rotating rods 313 is two, one ends of the two groups of rotating rods 313 are respectively rotatably connected to the left and right outer ends of the moving seat 36 through pin shafts, and the shape of the rotating rod 313 is V-shaped; the number of the third electric push rods 314 is two, and both ends of the two third electric push rods 314 are respectively rotatably connected to the other ends of the front and rear rotating rods 313 in the left and right two groups through pin shafts, the third electric push rods 314 are electrically connected to the control system 5, the third electric push rods 314 are controlled by the control system 5, and the third electric push rods 314 can drive the two sides of the rotating rods 313 to swing in and out through their own elongation and shortening; wherein, a fixing component is arranged inside the two groups of rotating rods 313, and the fixing component includes: a connecting shaft 315, a rotating frame 316, and an elastic band 317; the number of the connecting shafts 315 is two, and the two connecting shafts 315 are arranged inside the corners of the rotating rods 313 in the front-rear direction; the number of the rotating frames 316 is two, and the two rotating frames 316 are fixedly installed at the bottom of the outer walls of the left and right two connecting shafts 315; the number of the elastic bands 317 is two, and the two elastic bands 317 are arranged at the bottom of the inner sides of the left and right two rotating frames 316 in the front-rear direction, and the elastic band 317 has elasticity and can be manually adjusted by the staff, so as to tighten and fix the filling sandbag on the outer bottom of the first telescopic tube 33.

[0030] As a preferred solution, further, as Figure 6As shown in the figure, the lifting limit mechanism 4 includes: a mounting frame 41 and a fixing component; the mounting frame 41 is fixedly installed at the bottom end of the bagging mechanism housing 21 in the vertical direction and is located on the left side of the discharging component 3; the fixing component is arranged on the side of the mounting frame 41.

[0031] More specifically, the fixing component includes: a support frame 42, a fourth electric push rod 43, a lifting frame 44, a mounting housing 45, a clamping frame 46 and a fifth electric push rod 47; the support frame 42 is arranged inside the mounting frame 41 in the vertical direction, and a moving end is arranged inside the support frame 42 and can move up and down outside the inner guide rail frame; the fourth electric push rod 43 is arranged at the inner bottom end of the support frame 42 in the vertical 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 and is controlled by the control system 5. The fourth electric push rod 43 can drive the moving end of the support frame 42 to move up and down by its own elongation and shortening; the lifting frame 44 is fixedly installed at the top of the moving end of the support frame 42. The shape of the lifting frame 44 is Z-shaped, and the lifting frame 44 can lift and support the bottom of the sandbag; the mounting housing 45 is arranged at the top right end of the lifting frame 44 in the front-rear direction; the number of the clamping frames 46 is two, and the two clamping frames 46 are respectively rotatably connected to the front and rear sides of the mounting housing 45 through pins; the fifth electric push rod 47 is arranged inside the mounting housing 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 pins. The fifth electric push rod 47 is electrically connected to the control system 5 and is controlled by the control system 5. The fifth electric push rod 47 can drive the clamping frame 46 to rotate outward or inward by its own elongation and shortening.

[0032] The working principle is as follows:

[0033] Step 1: An external engineering vehicle stacks the filled sand at a designated position. The staff puts the sandbag on the outer wall bottom of the first telescopic pipe 33 and controls the control system 5 to start the third electric push rods 314 on both sides. The third electric push rods 314 drive the two side rotating rods 313 to rotate inward around the pin joint of the outer pin shaft of the moving seat 36 by their own shortening. Then, the rotating rods 313 drive the rotating frame 316 to rotate inward with the cooperation of the connecting shaft 315. Then, the elastic belt 317 fixes the sandbag outside the first telescopic pipe 33. The staff drives the engineering vehicle 1 to move to the sand pile position and controls the control system 5 to start the angle adjuster 6, the sand suction pump 7 and the conveyor 9 in sequence. The angle adjuster 6 adjusts the position and direction of the sand suction pump 7 and keeps the connection state with the conveyor 9 through the second telescopic pipe 8 during the movement of the sand suction pump 7. The sand suction pump 7 extracts the sand in the sand pile and enters it into the conveyor 9 through the second telescopic pipe 8. The conveyor 9 conveys the internal sand horizontally and discharges it into the inner cavity of the cylinder body 25 through the feed hopper 26;

[0034] Step 2: The staff controls the control system 5 to start the drive module 210, the electric conveyor belt 22, and the first electric push rod 23 in sequence. The drive module 210 drives several outer rotating buckets 211 to rotate circumferentially and sequentially rotates to the position below the feed hopper 26, 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 rotating force. Through the screening of 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 sundries are discharged to the outside through the discharge pipe 29, thus avoiding sundries in the filled flood control sandbag. The electric conveyor belt 22 horizontally conveys the sand from left to right into the inner cavity of the discharge assembly housing 31. The first electric push rod 23 drives the baffle 24 to move up and down through its own intermittent elongation and shortening to block the sand during the conveying process of the electric conveyor belt 22, achieving the purpose of quantitative sand discharge;

[0035] Step 3: The sand conveyed 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 in sequence and enters the sandbag. 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 through its own elongation, 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 elongates to drive the two clamping frames 46 to move outward. The clamping frames 46 rotate inward around the pin shaft rotation connection with the installation housing 45, so that the two clamping frames 46 clamp and fix the outside of the sandbag. After the sandbag is filled, the fifth electric push rod 47 shortens to drive the two clamping frames 46 to rotate to release the auxiliary fixing state of the outside of the sandbag. The staff controls the control system 5 to start the second electric push rods 38 on the front and rear sides. The two second electric push rods 38 drive the second electric push rods 38 to move horizontally in the left and right directions through their own intermittent elongation and shortening. The gear 37 drives the rotating disc 310 to rotate under the rotating force of the rack 39, so that the rotating disc 310 drives one end of the connecting rod 311 to rotate axially, and the connecting rod 311 drives the moving seat 36, so that the moving seat 36 drives the two rotating rods 313 to move up and down reciprocally under the limiting action of the guide rail frame 35. Furthermore, through the cooperation of the connecting shaft 315, the rotating frame 316, and the elastic band 317, the sandbag is vibrated up and down, making the sand inside the sandbag more dense.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. 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 Including: Engineering vehicle (1); Bagging mechanism (2), arranged on the right side of the engineering vehicle (1), used for sand transportation, screening, quantitative discharging and bagging work; Lifting and limiting mechanism (4), arranged at the bottom of the bagging mechanism (2), used for lifting and fixing sandbags; Control system (5), arranged inside the cab of the engineering vehicle (1); Angle regulator (6), installed at the left bottom end of the engineering vehicle (1), and the angle regulator (6) is electrically connected to the control system (5); Sand suction pump (7), arranged vertically on the moving end of the angle regulator (6), the sand suction pump (7) is electrically connected to the control system (5), and the angle regulator (6) can adjust the angular direction of the sand suction pump (7); Second telescopic pipe (8), one end fixedly connected to the outlet position of the sand suction pump (7); Conveyor (9), arranged horizontally on the front top of the engineering vehicle (1), the feed inlet of the conveyor (9) is fixedly connected to the other end of the second telescopic pipe (8), and the conveyor (9) is electrically connected to the control system (5); The bagging mechanism (2) includes: Bagging mechanism housing (21), fixedly installed horizontally on the right top of the engineering vehicle (1); Discharging assembly (3), arranged at the right bottom opening of the inner cavity of the bagging mechanism housing (21); The discharging assembly (3) includes: Discharging assembly housing (31), arranged vertically at the right bottom opening of the inner cavity of the bagging mechanism housing (21); Discharging pipe (32), arranged at the bottom of the inner cavity of the discharging assembly housing (31); First telescopic pipe (33), inserted into the inner cavity of the discharging assembly housing (31), and a limiting block is arranged circumferentially on the outer side of the first telescopic pipe (33); Wherein, sedimentation units are arranged on both the front and rear sides of the discharging assembly housing (31); The sedimentation unit includes: Mounting plate (34), arranged horizontally on the top of the outer wall of the discharging assembly housing (31); Guide rail frame (35), arranged vertically at the bottom of the mounting plate (34); Moving seat (36), sleeved outside the guide rail frame (35); Gear (37), rotatably connected to the bottom of the mounting plate (34) through a pin shaft seat; Second electric push rod (38), arranged horizontally at the bottom of the mounting plate (34), and the second electric push rod (38) is electrically connected to the control system (5); Rack (39), arranged horizontally on the inner side of the second electric push rod (38), the rack (39) is fixedly connected to the telescopic end of the second electric push rod (38), and the rack (39) meshes with the gear (37); Rotating disc (310), fixedly installed inside the axis of the gear (37); Connecting rod (311), one end rotatably connected to the outer end of the inner side of the rotating disc (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; The limiting spring (312) has one end fixedly connected to the top of the moving seat (36), and the top of the limiting spring (312) is fixedly connected to the bottom end of the outer shell (31) of the discharging assembly; The rotating rods (313), the number of the rotating rods (313) is two groups, the number of each group of the rotating rods (313) is two, one ends of the two groups of the rotating rods (313) are respectively rotatably connected to the left and right outer ends of the moving seat (36) through pin shafts, and the shape of the rotating rod (313) is V-shaped; The third electric push rods (314), the number of the third electric push rods (314) is two, both ends of the two third electric push rods (314) are respectively rotatably connected to the other ends of the front and rear rotating rods (313) in the left and right two groups through pin shafts, and the third electric push rods (314) are electrically connected to the control system (5); Wherein, a fixing component is arranged inside the two groups of the rotating rods (313).

2. The pier cofferdam device for bridge construction according to claim 1, characterized in that The bagging mechanism (2) further includes: The electric conveyor belt (22) is installed in the inner cavity of the outer shell (21) of the bagging mechanism along the left and right direction, and the electric conveyor belt (22) is electrically connected to the control system (5); The first electric push rod (23) is arranged at the upper right end of the outer shell (21) of the bagging mechanism along the up and down direction, the telescopic end of the first electric push rod (23) extends into the inner cavity of the outer shell (21) of the bagging mechanism, and the first electric push rod (23) is electrically connected to the control system (5); The baffle plate (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).

3. The pier cofferdam device for bridge construction according to claim 2, characterized in that, The bagging mechanism (2) further includes: The cylinder body (25) is arranged at the opening at the upper left end of the outer shell (21) of the bagging mechanism along the up and down direction; The feed hopper (26) is arranged at the front side opening at the top end of the cylinder body (25), and the discharge pipe of the conveyor (9) is connected to the top end inner cavity of the feed hopper (26); The installation grooves (27), the number of the installation grooves (27) is several, and several of the installation grooves (27) are circumferentially and spacedly arranged at the bottom end inner cavity of the cylinder body (25); The filter screens (28), the number of the filter screens (28) is several, and several of the filter screens (28) are circumferentially embedded in the inner cavity of the installation grooves (27); The discharge pipe (29) has one end installed at the rear side opening at the bottom end inner cavity of the cylinder body (25), and the other end of the discharge pipe (29) extends out of the rear side wall of the outer shell (21) of the bagging mechanism; The drive module (210) is fixedly installed at the bottom end inner cavity of the cylinder body (25), and the drive module (210) is electrically connected to the control system (5); The rotating hoppers (211), the number of the rotating hoppers (211) is several, and several of the rotating hoppers (211) are circumferentially arranged outside the rotating end of the drive module (210).

4. A pier cofferdam device for bridge construction according to claim 3, characterized in that, The fixing component includes: The connecting shafts (315), the number of the connecting shafts (315) is two, and the two connecting shafts (315) are arranged along the front and rear direction inside the corners of the rotating rods (313); Rotating frames (316), the number of the rotating frames (316) is two, and the two rotating frames (316) are fixedly installed at 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 in the inner bottom of the left and right rotating frames (316) in the front-back direction.

5. A pier cofferdam device for bridge construction according to claim 4, characterized in that, The lifting and limiting mechanism (4) includes: A mounting frame (41), fixedly installed in the bottom end of the bagging mechanism housing (21) in the up-down direction and located on the left side of the discharging assembly (3); A fixing component, arranged on the side of the mounting frame (41).

6. The pier cofferdam device for bridge construction according to claim 5, characterized in that, The fixing component includes: A support frame (42), arranged in the inner side of the mounting frame (41) in the up-down direction; A fourth electric push rod (43), arranged at the bottom end of the inner side 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 moving 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), fixedly installed at the top of the moving end of the support frame (42); A mounting shell (45), arranged at the top end of the right side of the lifting frame (44) in the front-back direction; Clamping frames (46), the number of the clamping frames (46) is two, and the two clamping frames (46) are respectively rotatably connected to the front and back sides of the mounting shell (45) through pins; A fifth electric push rod (47), 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 back clamping frames (46) through pins, and the fifth electric push rod (47) is electrically connected to the control system (5).

7. A pier cofferdam device for bridge construction according to claim 6, characterized in that, The shape of the lifting frame (44) is Z-shaped.

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