Underwater distribution structure of a concrete pump truck

Abstract

This invention relates to the technical field of underwater material replenishment, specifically to an underwater material placement structure for a concrete pump truck. The structure includes a concrete mixer truck, a material placement structure, a material guiding mechanism, and a covering mechanism. Operators, using the electronic control system on the concrete mixer truck and an underwater rangefinder, locate the construction area and lower the material placement structure below, allowing the material guiding mechanism to contact the ground for material placement. Then, while the material placement structure slowly moves the material guiding mechanism, the covering mechanism covers the placed concrete with a plastic film to prevent corrosion from water flow impact, until the material placement is complete. This equipment has a simple structure and can perform precise material placement in relatively uneven environments. It also allows for continuous material replenishment through the cooperation of an angle sensor and an underwater rangefinder, demonstrating good practicality and economy, and is beneficial for the promotion and use of this equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater feeding, and particularly relates to an underwater cloth laying structure of a concrete pump truck. Background Art

[0002] Concrete, abbreviated as "砼", refers to a general term for engineering composite materials in which aggregate is cemented into a whole by cementitious materials. Usually, the term "concrete" refers to cement concrete, which uses cement as the cementitious material, sand and stone as the aggregate, and is mixed with water (which may contain additives and admixtures) in a certain proportion and stirred. It is also called ordinary concrete, and it is widely used in ground construction and underwater construction pouring in civil engineering;

[0003] Existing underwater cloth laying usually adopts the method of a transport ship. The concrete material is flowed into a prepared formwork support or directly into the water bottom through a conduit. However, due to the use method of the transport ship, the concrete material needs to be transported to the ship first before it can be used, which increases the construction cost. At the same time, in response to the underwater environment, the direct feeding loss is relatively large, the cloth laying accuracy is insufficient, and the water flow will accelerate corrosion, resulting in a high construction cost. Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the purpose of the present invention is to provide an underwater cloth laying structure of a concrete pump truck that can accurately position, effectively reduce the cloth laying loss, and slow down the water flow corrosion.

[0005] The technical solution adopted by the present invention is as follows: An underwater cloth laying structure of a concrete pump truck, including

[0006] A concrete mixer truck, on which there are a support seat, a pump station, and an electric control system;

[0007] A cloth laying structure, which includes a turntable. The turntable is arranged above the support seat, and a cloth laying arm is arranged on the turntable, and a cloth laying pipe is arranged on the cloth laying arm;

[0008] A material guiding mechanism, which includes a quick-release part. A material guiding flat plate is arranged below the quick-release part, and several rotating fixing plates are also arranged below the material guiding flat plate. A material guiding pressing plate is arranged below the several rotating fixing plates. The quick-release part is arranged at one end of the cloth laying arm far from the concrete mixer truck, and a material protecting part is arranged below the quick-release part;

[0009] A film covering mechanism, which is located on one side of the material protecting part and is used to cover the film material to prevent the water flow from impacting and scattering the slurry.

[0010] In an embodiment, an angle sensor is arranged at the joint of the cloth laying arm, and an underwater rangefinder is arranged at one end of the cloth laying arm far from the concrete mixer truck.

[0011] In one embodiment, the quick-release component includes a structural connecting block, which is C-shaped. A hanging rod is located in the center of the structural connecting block. Two sets of connecting slide blocks are located on one side of the guide plate. Each connecting slide block has a slide groove in its center. Two sets of movable slide rods are located between the two sets of connecting slide blocks. The movable slide rods are perpendicular to the connecting slide blocks. Both ends of the movable slide rods pass into the slide grooves and engage with the two sets of connecting slide blocks. One end of each movable slide rod is equipped with a tension spring, which is placed in the slide groove and connects the movable slide rod to the connecting slide block. Clamping members are also provided on the two sets of movable slide rods, and these clamping members connect the movable slide rods and fix them to the hanging rod.

[0012] In one embodiment, the clamping member includes a plurality of rotating connecting plates, which are disposed in the middle of two sets of movable slide rods. Each rotating connecting plate is provided with a rotating hook, one end of which is rotatably connected to the rotating connecting plate. The rotating hooks on the two sets of movable slide rods are symmetrically arranged and hinged in the middle of the two sets of rotating hooks. One end of each rotating hook is provided with a hook slope and is fastened to the hanging rod.

[0013] In one embodiment, the clamping member further includes two sets of fixed disks, which are symmetrically arranged between the guide plate and the movable slide rod. The fixed disk has a fixed rotating shaft in the middle, one end of which is rotatably connected to the guide plate. The movable slide rod also has a snap-fit ​​groove in the middle. A locking rod is provided between the two sets of movable slide rods, and the two locking rods are respectively located on the outer periphery of the two sets of fixed disks.

[0014] In one embodiment, the material protection component includes several limiting movable plates, and the material guide plate is also provided with two sets of movable grooves. The several limiting movable plates pass through and are slidably connected to the movable grooves. A connecting fixing plate is provided on one side of the limiting movable plate, and a connecting nail is also provided on the connecting fixing plate. The connecting nail is slidably connected to the material guide plate, and a pressure spring penetrating through the connecting nail is provided between the material guide plate and the connecting fixing plate.

[0015] In one embodiment, the coating mechanism includes a rotating block located on the side of the guide plate away from the rotating fixed plate. A rotating shaft is mounted on the rotating block, and a film roller support frame is mounted on one side of the rotating shaft. A film mounting shaft is mounted on the film roller support frame, and two sets of elevation frame connecting blocks are mounted on one side of the film roller support frame. Pressure elevation frames are mounted on the elevation frame connecting blocks, with one end of each pressure elevation frame rotatably connected to the elevation frame connecting block. A pressure top shaft is located between the two sets of pressure elevation frames, and both ends of the rotating shaft of the pressure top shaft are rotatably connected to the ends of the pressure elevation frames away from the elevation frame connecting blocks. An auxiliary component is also mounted on the rotating shaft of the pressure top shaft to assist in peeling off the coating.

[0016] In one embodiment, the end of the elevation frame connecting block away from the pressure elevation frame is provided with an arc-shaped top film rod, and the pressure elevation frame has a sickle-shaped structure to assist in the folding state during the film covering process.

[0017] In one embodiment, the auxiliary component includes two sets of pressure roller rods, which are symmetrically arranged and rotatably connected to the two ends of the pressure top shaft. A torsion spring is provided between the pressure roller rod and the pressure elevation frame, which is penetrated by the rotation shaft of the pressure top shaft. A rotating pressure roller is provided at one end of the pressure roller rod, and a pressure roller shaft is provided at the center of the rotating pressure roller. The pressure roller shaft passes through and is rotatably connected to the pressure roller rod.

[0018] In one embodiment, the auxiliary component further includes a rotating sliding shaft. One end of the pressure elevation frame is provided with a movable groove. The rotating sliding shaft passes through the movable groove and is slidably connected to the movable groove. One side of the rotating sliding shaft is provided with a snap-fit ​​slider. The snap-fit ​​slider has a C-shaped snap-fit ​​structure. The pressure roller shaft is also provided with a spiked wheel rod. One end of the spiked wheel rod is rotatably connected to the pressure roller shaft. The middle part of the spiked wheel rod is snapped into and slidably connected to the groove of the snap-fit ​​slider. The middle part of the spiked wheel rod is also provided with a spiked wheel groove. One end of the spiked wheel groove is provided with a spiked wheel rotating shaft. The spiked wheel rotating shaft passes through and is slidably connected to the spiked wheel groove. One side of the spiked wheel rotating shaft is provided with a spiked wheel. The spiked wheel groove is also provided with a return spring. The return spring connects the spiked wheel rotating shaft and the spiked wheel rod.

[0019] The beneficial effects of this invention are as follows: This invention provides an underwater concrete placement structure for concrete pump trucks that can be precisely positioned, effectively reduce material loss, and mitigate water corrosion. Specific implementation methods are shown below:

[0020] The operator first drives the concrete mixer truck to the construction platform, then starts the pump station using the electrical control system, and then continues to lower the placing boom into the water. The underwater rangefinder is then activated to place the placing pipe into the construction area. The placing boom also drives the material guiding mechanism and the film covering mechanism to the bottom of the water, completing the preliminary equipment preparation work.

[0021] After the material guiding mechanism reaches the ground, the limiting movable plate makes contact and adjustment first, and the pressing connecting fixed plate moves upward to fit the ground. Multiple sets of limiting movable plates and material guiding plates combine with the ground to form a rectangular cavity. Then the material placing pipe starts to release material. The concrete material drives the material guiding pressure plate to press down. The cavity is isolated from the rear half of the rectangular cavity on site, so that the concrete material is guided to the rear half of the rectangular cavity, which effectively reduces the corrosion of the concrete material by the water flow. Then, with the cooperation of angle sensors and underwater rangefinders, the material placing arm moves forward to drive the material placing structure forward to complete the continuous material placing.

[0022] Since the concrete material is in continuous contact with the water flow after the placement begins, prolonged contact can still lead to water corrosion. To address this, before the material guide mechanism reaches the bottom, a plastic film roll is attached to the membrane installation shaft. The film head is then routed around the curved top membrane rod to form a C-shape, continuing around the rotating pressure roller and the lower half of the pressure roller until it contacts the spiked wheel. The plastic film is then inserted into the spikes on the spiked wheel for fixation. Once the material falls to the designated area, the placement arm moves the material guide mechanism, and the pressure roller contacts the placed concrete first, raising the height of the pressure frame and squeezing the plastic film against the concrete surface. Simultaneously, the torsion spring forces the rotating pressure roller downwards, extending and fixing the plastic film on both sides. As the pressure angle frame rises, the tail end of the plastic film is resisted by water and detaches from the spike wheel. The rotating pressure wheel rod, which approaches verticality, extends and drives the rotating sliding shaft to slide within the movable groove. This continues to drive the spike wheel rod to gradually tilt towards the vertical direction. The spike wheel, under its own gravity, causes the spike wheel rotating shaft to press the return spring downward within the spike wheel groove until the spikes on the spike wheel embed the film into the soil on both sides, completing the film coverage of the concrete slurry. At the same time, since the material guiding mechanism and the film covering mechanism are connected by a rotating shaft, even if the front end of the material guiding mechanism twists, it will not affect the pressure shaft detaching from the concrete, avoiding water erosion of the concrete and effectively reducing concrete waste.

[0023] Since the material guiding mechanism and the film covering mechanism need to be disassembled after the concrete mixer truck is installed, after the concrete is placed, the electric control system uses the placing arm to drive the material guiding mechanism and the film covering mechanism onto the concrete mixer truck. The placing arm then presses the rotating hook, causing the end of the rotating hook to drive the rotating connecting plate to expand outward until the opening at the top of the rotating hook can pull out the hanging rod. Then, the fixed plate is rotated to lock the locking rod into the locking groove. Because the locking rod is pushed by the movable slide rod relatively evenly, the fixed plate will not rotate, so the movable slide rod can be fixed. When the material guiding mechanism and the film covering mechanism are used again, the rotating fixed plate is disengaged, and the tension spring presses the movable slide rod inward. After the two sets of rotating hooks are closed, the placing arm uses the hook arm to press the hanging rod downward into the hook slope provided by the rotating hook, pressing the rotating hook to expand at a small angle, and then locking the hanging rod to complete the equipment installation.

[0024] The equipment has a simple structure. After positioning by an electronic control system, an angle sensor, and an underwater rangefinder, the concrete material is guided into a certain area by a material guiding mechanism. Then, a film covering mechanism is used to coat the concrete material, which effectively solves the problems of concrete waste and water erosion. It has good practicality and economy, and is beneficial to the promotion and use of the equipment. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0028] Figure 3 This is the second partial three-dimensional structural schematic diagram of the present invention;

[0029] Figure 4 This is a three-dimensional structural diagram of the material guiding mechanism of the present invention;

[0030] Figure 5 This is a three-dimensional structural diagram of the material guiding mechanism of the present invention;

[0031] Figure 6 This is a partial three-dimensional structural schematic diagram of the material guiding mechanism of the present invention;

[0032] Figure 7 This is the invention Figure 6 A second-view 3D structural diagram;

[0033] Figure 8 This is a three-dimensional structural diagram of the fixed disk of the present invention;

[0034] Figure 9 This is a three-dimensional structural diagram of the coating mechanism of the present invention;

[0035] Figure 10 This is a partial three-dimensional structural schematic diagram of the coating mechanism of the present invention;

[0036] Figure 11 This is a three-dimensional structural schematic diagram of the third part of the coating mechanism of the present invention;

[0037] Figure 12 This is a partial exploded three-dimensional structural diagram of the coating mechanism of the present invention.

[0038] Attached Figure Descriptions: 1. Concrete mixer truck; 12. Pump station; 13. Support base; 14. Electrical control system; 2. Concrete placing structure; 21. Concrete placing arm; 22. Concrete placing pipe; 23. Rotary table; 24. Angle sensor; 25. Underwater rangefinder; 3. Material guiding mechanism; 31. Structural connecting block; 311. Hanging rod; 32. Material guiding plate; 321. Movable groove; 322. Rotating fixed plate; 323. Material guiding pressure plate; 33. Limiting movable plate; 331. Connecting nail; 332. Connecting fixed plate; 333. Pressure spring; 34. Connecting slide block; 341. Slide groove; 35. Movable slide; 351. Rotating connecting plate; 352. Tension spring; 353. Fastener 36. Groove; 361. Rotating hook rod; 37. Hook rod inclined surface; 38. Fixed plate; 371. Fixed rotating shaft; 372. Positioning rod; 4. Film covering mechanism; 41. Rotating block; 42. Rotating shaft rod; 43. Roller film support frame; 431. Film material installation shaft; 44. Pressure tilting frame; 441. Movable slide groove; 442. Tilting frame connecting block; 443. Arc-shaped top film rod; 45. Rotating sliding shaft; 451. Fastening slider; 46. Pressure roller rod; 461. Torsion spring; 462. Top pressure shaft; 47. Rotating pressure roller; 471. Pressure roller shaft; 48. Spiked wheel rod; 481. Spiked wheel slide groove; 49. Spiked wheel; 491. Spiked wheel rotating shaft; 492. Return spring. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0041] The following is combined Figure 1-12 This invention describes a specific embodiment of an underwater concrete placing structure for a concrete pump truck, comprising:

[0042] Reference Figure 1 , 2 As shown in Figures 1 and 3, the concrete mixer truck 1 is equipped with a support base 13, a pump station 12 and an electrical control system 14.

[0043] Specifically, the concrete mixer truck 1, support base 13, pump station 12 and electrical control system 14 are all existing technologies, mainly used to realize equipment support and transportation and other related operations, and are not the inventive point of this invention, so they will not be described in detail.

[0044] Fabric structure 2 includes a rotary table 23, which is located above the support base 13. A fabric arm 21 is provided on the rotary table 23. The fabric arm 21 is a multi-end robotic arm, and its orientation and angle can be controlled by the electronic control system 14. A fabric tube 22 is provided on the fabric arm 21. An angle sensor 24 is provided at the joint of the fabric arm 21. An underwater rangefinder 25 is provided at the end of the fabric arm 21 away from the concrete mixer truck 1 to measure the distance to the bottom of the pool.

[0045] As can be seen, after the concrete material is fed into the guide plate 323 by the placing pipe 22, it can slide down the inclined surface of the guide plate 323, avoiding direct contact with the bottom surface and scattering.

[0046] Reference Figure 5 , 6As shown in Figures 7 and 8, the material guiding mechanism 3 includes a quick-release component. Below the quick-release component is a material guiding plate 32. Below the material guiding plate 32 are two sets of symmetrically arranged rotating fixing plates 322. Below the two sets of rotating fixing plates 322 is a material guiding pressure plate 323. The material guiding pressure plate 323 is located below the outlet side of the material placing pipe 22. One end of the material guiding pressure plate 323 is rotatably connected to the rotating fixing plate 322. The quick-release component is located at the end of the material placing arm 21 away from the concrete mixer truck 1. The quick-release component includes a structural connecting block 31, which has a C-shaped structure. A hanging rod 311 is provided in the middle of the connecting block 31. The hanging rod 311 is fixedly connected to the structural connecting block 31 at both ends. Two sets of connecting sliding rod blocks 34 are provided on the side of the guide plate 32 near the hanging rod 311. The two sets of connecting sliding rod blocks 34 are symmetrically arranged. A sliding rod groove 341 is provided in the middle of the connecting sliding rod block 34. Two sets of movable sliding rods 35 are provided between the two sets of connecting sliding rod blocks 34. The movable sliding rods 35 are symmetrically arranged and perpendicular to the connecting sliding rod blocks 34. Both ends of the movable sliding rods 35 pass into the sliding rod groove 341 and fasten to the two sets of connecting sliding rod blocks 34. 5. A tension spring 352 is provided at one end near the connecting slide block 34. The tension spring 352 is placed in the slide groove 341 to connect the movable slide 35 and the connecting slide block 34. The two sets of movable slides 35 are also provided with clamping parts. The clamping parts are connected to the movable slides 35 and fixed to the hanging rod 311. The clamping parts include four sets of rotating connecting plates 351. The four sets of rotating connecting plates 351 are symmetrically arranged in the middle of the two sets of movable slides 35. The rotating connecting plates 351 are provided with rotating hooks 36. The rotating hooks 36 are hook-shaped. The end of the rotating hooks 36 away from the bend is rotated to connect to the hook. Connected to the rotating connecting plate 351, the rotating hooks 36 connected to the rotating connecting plates 351 on the two sets of movable slide rods 35 are symmetrically arranged. The two sets of rotating hooks 36 are hinged in the middle. The end of the rotating hook 36 near the hanging rod 311 is provided with a hook slope 361. The rotating hook 36 is fastened to the hanging rod 311. The clamping component also includes two sets of fixed plates 37. The two sets of fixed plates 37 are symmetrically arranged between the guide plate 32 and the movable slide rods 35. The fixed plate 37 is provided with a fixed rotating shaft 371 in the middle. One end of the fixed rotating shaft 371 is rotatably connected to the guide plate 32. (Refer to...) Figure 8 As shown, the movable slide bar 35 is also provided with a fastening groove 353 in the middle. The fastening grooves 353 on the two sets of movable slide bars 35 are arranged opposite to each other. A locking rod 372 is provided between the two sets of movable slide bars 35. The two sets of locking rods 372 are respectively located on the outer side of the two sets of fixed plates 37.

[0047] In practice, the fabric arm 21 presses the rotating hook 36, causing the end of the rotating hook 36 to drive the rotating connecting plate 351 to expand outward until the opening at the top of the rotating hook 36 can pull out the hanging rod 311. Then, the fixed plate 37 is rotated to lock the locking rod 372 into the locking groove 353. Since the locking rod 372 is pushed relatively evenly by the movable slide rod 35, the fixed plate 37 will not rotate, so the movable slide rod 35 can be fixed. When the material guiding mechanism 3 and the film covering mechanism 4 are used next time, the rotating fixed plate 37 is released from the fixed position, and the tension spring 352 presses the movable slide rod 35 inward. After the two sets of rotating hooks 36 are closed, the fabric arm 21 presses the hanging rod 311 downward into the hook slope 361 provided on the rotating hook 36, pressing the rotating hook 36 to expand at a small angle, and then locking the hanging rod 311 to complete the equipment installation.

[0048] Reference Figure 4 As shown, a material guard is provided below the quick-release component to prevent the concrete material from being disturbed and scattered by water flow. The material guard includes several limiting movable plates 33, the specific number of which depends on the actual number used. The guide plate 32 is also provided with two sets of movable grooves 321. The two sets of movable grooves 321 are parallel to the movable sliding rods 35 and are symmetrically arranged on the guide plate 32. Several limiting movable plates 33 are inserted into and slidably connected to the movable grooves 321. A connecting fixing plate 332 is provided on the side of the limiting movable plate 33 away from the center of the guide plate 32. A connecting nail 331 is also provided on the connecting fixing plate 332. The middle part of the connecting nail 331 passes through and is slidably connected to the guide plate 32. A pressure spring 333 is provided between the guide plate 32 and the connecting fixing plate 332 and is penetrated by the connecting nail 331.

[0049] Reference Figure 9 , 10As shown in Figures 11 and 12, the coating mechanism 4 is located on one side of the protective material component and is used to cover the film material to prevent water flow from impacting and scattering the slurry. The coating mechanism 4 includes a rotating block 41, which is located on the side of the guide plate 32 away from the rotating fixed plate 322. A rotating shaft 42 is provided on the rotating block 41 and is rotatably connected to the rotating block 41. A film rolling support frame 43 is provided on the side of the rotating shaft 42 away from the rotating block 41. The film rolling support frame 43 has a C-shaped structure and a film material mounting shaft 431 is provided on the film rolling support frame 43. Two sets of elevation angle frame connecting blocks 442 are provided on the side of the film rolling support frame 43 away from the rotating block 41. The two sets of elevation angle frame connecting blocks 442 are symmetrically arranged and are equipped with pressure elevation angle frames 44. One end of the frame 44 is rotatably connected to the elevation frame connecting block 442. A pressure shaft 462 is provided between the two sets of pressure elevation frames 44. The two ends of the rotating shaft of the pressure shaft 462 are rotatably connected to the ends of the pressure elevation frames 44 away from the elevation frame connecting block 442. An auxiliary component is also provided on the rotating shaft of the pressure shaft 462 to assist in peeling off the film. The auxiliary component includes two sets of pressure roller rods 46. The two sets of pressure roller rods 46 are symmetrically arranged and rotatably connected to the two ends of the rotating shaft of the pressure shaft 462. A torsion spring 461 is provided between the pressure roller rod 46 and the pressure elevation frame 44 and is penetrated by the rotating shaft of the pressure shaft 462. A rotating pressure roller 47 is provided at the end of the pressure roller rod 46 away from the pressure shaft 462. A pressure roller shaft 471 is provided at the center of the rotating pressure roller 47. The pressure roller shaft 471 passes through and is rotatably connected to the pressure roller rod 46.

[0050] Reference Figure 11 , 12 As shown, the auxiliary components also include a rotating sliding shaft 45. A movable groove 441 is provided at one end of the pressure angle bracket 44 near the pressure top shaft 462. The rotating sliding shaft 45 passes through the movable groove 441 and is slidably connected to it. A snap-fit ​​slider 451 is provided on the side of the rotating sliding shaft 45 away from the pressure top shaft 462. The snap-fit ​​slider 451 has a C-shaped snap-fit ​​structure. A spiked wheel rod 48 is also provided on the pressure roller shaft 471. One end of the spiked wheel rod 48 is rotatably connected to the pressure roller shaft 471, and the middle part of the spiked wheel rod 48 is snapped into and slidably connected to the snap-fit ​​slider. Inside the groove of block 451, the middle part of the spike wheel rod 48 is also provided with a spike wheel 49 groove 481. The end of the spike wheel 49 groove 481 away from the pressure wheel shaft 471 is provided with a spike wheel rotating shaft 491. The spike wheel rotating shaft 491 passes through and is slidably connected to the spike wheel 49 groove 481. A spike wheel 49 is provided on the side of the spike wheel rotating shaft 491 away from the pressure top shaft 462. The spike wheel 49 is rotatably connected to the spike wheel rotating shaft 491. A return spring 492 is also provided in the spike wheel 49 groove 481. The return spring 492 connects the spike wheel rotating shaft 491 and the spike wheel rod 48.

[0051] In practice, the material-laying arm 21 drives the material-guiding mechanism 3 to move. The pressure shaft 462 first contacts the concrete after the material is laid, raising the height of the pressure angle frame 44 and squeezing the plastic film to contact the concrete surface. At the same time, the torsion of the torsion spring 461 drives the rotating pressure roller 47 to press downward, extending and fixing the two sides of the plastic film. Due to the height increase of the pressure angle frame 44, the tail end of the plastic film is resisted by water and detaches from the spike wheel 49. The rotating pressure roller rod 46, which is close to vertical, extends and drives the rotating sliding shaft 45 to slide in the movable slide groove 441, continuing to drive the spike wheel rod 48 to gradually tilt in the vertical direction. The spike wheel 49 is also driven by its own gravity, causing the spike wheel rotating shaft 491 to squeeze the return spring 492 downward in the spike wheel 49 slide groove 481 until the spikes on the spike wheel 49 pierce the two sides of the film into the soil layer, completing the coverage of the film with the concrete slurry.

[0052] Beneficial, for reference Figure 10 As shown, the end of the tilting frame connecting block 442 away from the pressure tilting frame 44 is provided with an arc-shaped top film rod 443. The pressure tilting frame 44 has a sickle-shaped structure to assist in the folding state during the film covering process.

[0053] Working principle of this invention:

[0054] After the operator first drives the concrete mixer truck 1 to the construction platform, he starts the pump station 12 using the electrical control system 14, and then continues to lower the placing arm 21 into the water. He then starts the underwater rangefinder 25 to place the placing pipe 22 into the construction area. The placing arm 21 also drives the material guiding mechanism 3 and the film covering mechanism 4 to go deep into the water to complete the preliminary preparation work of the equipment.

[0055] After the material guiding mechanism 3 reaches the ground, the limiting movable plate 33 makes contact and adjustment first, and the pressing connecting fixed plate 332 moves upward to fit the ground. Multiple sets of limiting movable plates 33 and material guiding plate 32 combine with the ground to form a rectangular cavity. Then the material placing pipe 22 starts to release material. The concrete material drives the material guiding pressure plate 323 to press down. The cavity is isolated from the rear half of the rectangular cavity on site, so that the concrete material is guided to the rear half of the rectangular cavity, which effectively reduces the corrosion of the concrete material by the water flow. Then, with the cooperation of the angle sensor 24 and the underwater rangefinder 25, the material placing arm 21 moves forward to drive the material placing structure 2 forward to complete the continuous material placing.

[0056] Since the concrete material is in continuous contact with the water flow after the laying begins, prolonged contact can still lead to water corrosion. To prevent this, before the material guide mechanism 3 falls to the bottom, a plastic film roll is attached to the membrane installation shaft 431. The film head is then routed around the arc-shaped top membrane rod 443 to form a C-shaped structure, and continues to route around the rotating pressure roller 47 and the lower half of the pressure shaft 462 until it contacts the spiked wheel 49. The plastic film is then inserted into the spikes on the spiked wheel 49 for fixation. After falling to the designated area, the laying arm 21 moves the material guide mechanism 3, and the pressure shaft 462 first contacts the laid concrete, raising the height of the pressure angle frame 44 and squeezing the plastic film to contact the concrete surface. Simultaneously, the torsion of the torsion spring 461 causes the rotating pressure roller 47 to press downwards, extending and fixing the plastic film on both sides. As the pressure angle frame 44 is raised, the tail end of the plastic film is resisted by water and detaches from the spike wheel 49. The rotating pressure wheel rod 46, which is close to vertical, extends and drives the rotating sliding shaft 45 to slide in the movable groove 441. This continues to drive the spike wheel rod 48 to gradually tilt towards the vertical direction. The spike wheel 49 is also driven by its own gravity, causing the spike wheel rotating shaft 491 to squeeze the return spring 492 downward in the spike wheel 49 groove 481 until the spikes on the spike wheel 49 pierce the two sides of the film into the soil layer, completing the film covering the concrete slurry. At the same time, since the material guiding mechanism 3 and the film covering mechanism 4 are connected by the rotating shaft 42, even if the front end of the material guiding mechanism 3 is twisted, it will not affect the pressure shaft 462 from detaching from the concrete material, avoiding the concrete from being eroded by water flow and effectively reducing concrete waste.

[0057] Since the concrete mixer truck 1 needs to be disassembled after the concrete delivery is completed, the material guiding mechanism 3 and the film covering mechanism 4 need to be disassembled. After the concrete delivery is completed, the electric control system 14 uses the delivery arm 21 to drive the material guiding mechanism 3 and the film covering mechanism 4 to fall onto the concrete mixer truck 1. The delivery arm 21 then squeezes the rotating hook 36, causing the end of the rotating hook 36 to drive the rotating connecting plate 351 to expand outward until the opening at the top of the rotating hook 36 can pull out the hanging rod 311. Then, the fixing plate 37 is rotated to lock the locking rod 372 into the locking groove 353. The movable slide bar 35 provides relatively uniform thrust to the 72, so the fixed plate 37 will not rotate, allowing the movable slide bar 35 to be fixed. When the material guiding mechanism 3 and the film covering mechanism 4 are used next time, the rotating fixed plate 37 will disengage, and the tension spring 352 will press the movable slide bar 35 inward. After the two sets of rotating hooks 36 are closed, the cloth arm 21 will press the hanging rod 311 downward into the hook slope 361 of the rotating hook 36, pressing the rotating hook 36 to expand at a small angle, and then fastening the hanging rod 311 to complete the equipment installation.

[0058] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0059] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An underwater concrete placing structure for a concrete pump truck, characterized in that: include A concrete mixer truck (1) is provided with a support base (13), a pump station (12) and an electrical control system (14); Fabric structure (2), the fabric structure (2) includes a rotary table (23), the rotary table (23) is located above the support base (13), the rotary table (23) is provided with a fabric arm (21), and the fabric arm (21) is provided with a fabric tube (22); The material guiding mechanism (3) includes a quick-release component. A material guiding plate (32) is provided below the quick-release component. Several rotating fixing plates (322) are also provided below the material guiding plate (322). A material guiding pressure plate (323) is provided below the several rotating fixing plates (322). The quick-release component is located at the end of the material placing arm (21) away from the concrete mixer truck (1). A material protection component is provided below the quick-release component. A coating mechanism (4) is located on one side of the protective material and is used to cover the film material to prevent water flow from impacting and scattering the slurry. An angle sensor (24) is provided at the joint of the fabric-laying arm (21), and an underwater rangefinder (25) is provided at the end of the fabric-laying arm (21) away from the concrete mixer truck (1). The quick-release component includes a structural connecting block (31), which has a C-shaped structure. A hanging rod (311) is provided in the middle of the structural connecting block (31). Two sets of connecting slide blocks (34) are provided on one side of the guide plate (32). A slide groove (341) is provided in the middle of each connecting slide block (34). Two sets of movable slide rods (35) are provided between the two sets of connecting slide blocks (34). The movable slide rods (35) are perpendicular to the connecting slide blocks (34). Both ends of the slide rod (35) pass into the slide rod groove (341) and are fastened to two sets of connecting slide rod blocks (34). One end of the movable slide rod (35) is provided with a tension spring (352). The tension spring (352) is placed in the slide rod groove (341) to connect the movable slide rod (35) and the connecting slide rod block (34). The two sets of movable slide rods (35) are also provided with clamping members. The clamping members are connected to the movable slide rod (35) and fixed to the hanging rod (311). The film coating mechanism (4) includes a rotating block (41) located on the side of the guide plate (32) away from the rotating fixing plate (322). A rotating shaft (42) is provided on the rotating block (41), and a film rolling support frame (43) is provided on one side of the rotating shaft (42). A film mounting shaft (431) is provided on the film rolling support frame (43), and two sets of elevation angle bracket connecting blocks (442) are provided on one side of the film rolling support frame (43). The angle bracket connecting block (442) is provided with a pressure elevation angle bracket (44). One end of the pressure elevation angle bracket (44) is rotatably connected to the elevation angle bracket connecting block (442). A pressure top shaft (462) is provided between the two sets of pressure elevation angle brackets (44). The two ends of the rotation shaft of the pressure top shaft (462) are rotatably connected to the end of the pressure elevation angle bracket (44) away from the elevation angle bracket connecting block (442). An auxiliary component is also provided on the rotation shaft of the pressure top shaft (462) to assist in peeling off the coating.

2. The underwater concrete placing structure of the concrete pump truck according to claim 1, characterized in that: The clamping component includes a plurality of rotating connecting plates (351), which are disposed in the middle of the two sets of movable slide rods (35). A rotating hook rod (36) is provided on the rotating connecting plate (351), one end of the rotating hook rod (36) is rotatably connected to the rotating connecting plate (351), the rotating hook rods (36) on the two sets of movable slide rods (35) are symmetrically arranged, the two sets of rotating hook rods (36) are hinged in the middle, one end of the rotating hook rod (36) is provided with a hook rod inclined surface (361), and the rotating hook rod (36) is fastened to the hanging rod (311).

3. The underwater concrete placing structure of the concrete pump truck according to claim 2, characterized in that: The clamping component also includes two sets of fixed discs (37), which are symmetrically arranged between the guide plate (32) and the movable slide rod (35). A fixed rotating shaft (371) is provided in the middle of the fixed disc (37), and one end of the fixed rotating shaft (371) is rotatably connected to the guide plate (32). A snap-fit ​​groove (353) is also provided in the middle of the movable slide rod (35). A locking rod (372) is provided between the two sets of movable slide rods (35), and the two sets of locking rods (372) are respectively located on the outer periphery of the two sets of fixed discs (37).

4. The underwater concrete placing structure of the concrete pump truck according to claim 1, characterized in that: The material protection component includes several limiting movable plates (33), and the material guide plate (32) is also provided with two sets of movable grooves (321). Several of the limiting movable plates (33) are inserted into and slidably connected to the movable grooves (321). A connecting fixing plate (332) is provided on one side of the limiting movable plate (33), and a connecting nail (331) is also provided on the connecting fixing plate (332). The connecting nail (331) is slidably connected to the material guide plate (32), and a pressure spring (333) is provided between the material guide plate (32) and the connecting fixing plate (332) and penetrated by the connecting nail (331).

5. The underwater concrete placing structure of the concrete pump truck according to claim 1, characterized in that: The end of the elevation frame connecting block (442) away from the pressure elevation frame (44) is provided with an arc-shaped top film rod (443). The pressure elevation frame (44) has a sickle-shaped structure to assist in the folding state during the film covering process.

6. The underwater concrete placing structure of the concrete pump truck according to claim 1, characterized in that: The auxiliary component includes two sets of pressure roller rods (46), which are symmetrically arranged and rotatably connected to the two ends of the pressure shaft (462). A torsion spring (461) is provided between the pressure roller rod (46) and the pressure elevation frame (44) and is penetrated by the rotation shaft of the pressure shaft (462). A rotating pressure roller (47) is provided at one end of the pressure roller rod (46), and a pressure roller shaft (471) is provided at the center of the rotating pressure roller (47). The pressure roller shaft (471) is penetrated and rotatably connected to the pressure roller rod (46).

7. The underwater concrete placing structure of the concrete pump truck according to claim 6, characterized in that: The auxiliary component also includes a rotating sliding shaft (45). One end of the pressure elevation bracket (44) is provided with a movable slide groove (441). The rotating sliding shaft (45) passes through the movable slide groove (441) and is slidably connected to the movable slide groove (441). One side of the rotating sliding shaft (45) is provided with a snap-fit ​​slider (451). The snap-fit ​​slider (451) has a C-shaped snap-fit ​​structure. The pressure roller shaft (471) is also provided with a spiked wheel rod (48). One end of the spiked wheel rod (48) is rotatably connected to the pressure roller shaft (471). The middle of the spiked wheel rod (48) The part is snapped into and slidably connected to the groove of the snapping slider (451). The middle part of the spike wheel rod (48) is also provided with a spike wheel groove (481). One end of the spike wheel groove (481) is provided with a spike wheel rotating shaft (491). The spike wheel rotating shaft (491) passes through and is slidably connected to the spike wheel groove (481). A spike wheel (49) is provided on one side of the spike wheel rotating shaft (491). A return spring (492) is also provided in the spike wheel groove (481). The return spring (492) connects the spike wheel rotating shaft (491) and the spike wheel rod (48).

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