Semi-prefabricated concrete lattice beam structure, construction equipment and construction method

Abstract

The invention discloses a semi-prefabricated concrete lattice beam structure, construction equipment and a construction method.The semi-prefabricated concrete lattice beam structure comprises a prefabricated linear beam, and connecting steel bars are reserved on the two side walls, in the length direction of the prefabricated linear beam, of the prefabricated linear beam; the connecting steel bars are used for being connected with connecting steel bars of other prefabricated linear beams to form a steel reinforcement cage. By the adoption of the technical scheme, parts needing to be poured are reduced through the arrangement of the prefabricated linear beams, the construction efficiency is improved, meanwhile, the prefabricated linear beams can be suitable for the vertical sections and the horizontal sections of the #-shaped lattice beams and can be achieved only through one mold, batch prefabrication is convenient, the cost is low, and in addition, the production cost is reduced. And the connecting steel bars can be directly connected with the connecting steel bars of the adjacent prefabricated linear beams through steel wires to form a steel reinforcement cage, so that the construction convenience and the construction efficiency are greatly improved.

Description

Technical Field

[0001] The present application relates to the field of slope support technology, and in particular to a semi-prefabricated concrete lattice beam structure, construction equipment and construction method. Background Art

[0002] Slope support refers to the support, reinforcement, and protection measures taken to ensure the safety of the slope and its surroundings. Common support structures include gravity retaining walls, buttress retaining walls, cantilever retaining walls, plate-rib or lattice anchor retaining walls, pile anchor retaining walls, anchor-spray support, grade method, and lattice beam support.

[0003] When using lattice beam support, a notching machine is generally used to carve several groups of mutually perpendicular "well"-shaped grid grooves on the slope. Then, prestressed anchor cables (anchor rods) are driven into the intersections of the grid grooves, and then steel cages are installed in the grid grooves. Finally, the formwork is installed on the slope and cast to form the lattice beam.

[0004] However, during construction, the steel cages need to be installed and tied on site, the formwork needs to be installed on site, and pouring can only be carried out after all the formwork and steel cages are installed. The construction efficiency is relatively low, and the cost of the formwork is high. Summary of the Invention

[0005] The purpose of this application is to provide a semi-prefabricated concrete lattice beam structure, construction equipment and construction method to improve the problem that the high-altitude construction of tie beams is more troublesome and has higher safety hazards.

[0006] In a first aspect, the present application provides a semi-prefabricated concrete lattice beam structure, which adopts the following technical solution: A semi-precast concrete lattice beam structure includes a precast straight beam. Connecting steel bars are reserved on both side walls along the length of the precast straight beam. The connecting steel bars are used to connect with the connecting steel bars of other precast straight beams to form a steel cage.

[0007] By adopting the above technical solution and setting up prefabricated straight beams, the parts that need to be cast are reduced, thereby improving construction efficiency. At the same time, the prefabricated straight beams can be applied to the vertical and horizontal sections of the "well"-shaped lattice beams, and only one mold is needed to achieve it. Batch prefabrication is relatively convenient and low in cost. In addition, the connecting steel bars can be directly connected to the connecting steel bars of adjacent prefabricated straight beams through steel wire to form a steel cage, which greatly improves the convenience and efficiency of construction.

[0008] Optionally, a connecting sleeve is provided on the connecting steel bar, and the connecting sleeve has a contracted state and an expanded state. When the connecting sleeve is in the contracted state, one end of the connecting sleeve abuts against the prefabricated straight beam. When the connecting sleeve is in the expanded state, the connecting sleeve is located at the end of the connecting steel bar away from the prefabricated straight beam.

[0009] Through the above technical solution, during the installation and transportation of the prefabricated straight beam, the connecting sleeve is in a retracted state to facilitate transportation and reduce the possibility of interference during the installation process. After the prefabricated straight beam is installed to the corresponding position, the connecting sleeve is switched to an expanded state, which facilitates the connection of the connecting sleeve with the connecting steel bars or connecting sleeves of the adjacent prefabricated straight beams through steel wire, thereby forming a steel cage.

[0010] Optionally, a stopper is connected to one end of the connecting steel bar away from the prefabricated straight beam, and a stopper is connected to one end of the connecting sleeve toward the prefabricated straight beam, and the stopper is used to abut against the stopper to prevent the connecting sleeve from separating from the connecting steel bar.

[0011] Through the above technical solution, the cooperation between the retaining sleeve and the retaining block can easily prevent the connection sleeve from separating from the connected steel bars, thereby improving the overall stability of the steel cage.

[0012] Optionally, a grouting groove is provided on the side wall of the connecting sleeve.

[0013] Through the above technical solution, the grouting trough is convenient for concrete to enter when pouring concrete, so as to improve the bonding strength between the steel cage and the concrete.

[0014] A construction equipment includes a notching machine body, a large arm connected to the notching machine body, a small arm connected to the large arm, a quick-release plate connected to the small arm, the quick-release plate is used to install a notching knife or a sling, and when the sling is installed on the quick-release plate, the sling can lift the above-mentioned semi-precast concrete lattice beam structure.

[0015] Through the above technical solution, the notching knife or the hoist can be easily replaced through the quick-release plate, and then the notching and hoisting can be achieved through one device, which saves costs, saves construction space, and facilitates construction management.

[0016] Optionally, a slag conveying mechanism is installed on the boom, and the slag conveying mechanism has a storage state and a working state; when the slag conveying mechanism is in the storage state, the slag conveying mechanism is retracted under the boom; when the slag conveying mechanism is in the working state, one end of the slag conveying mechanism extends to the bottom of the quick-release plate to receive the slag.

[0017] By adopting the above technical solution, when the slag conveying mechanism is in a retracted state, the possibility of interference with other buildings or equipment can be reduced. When the equipment is carving grooves, the slag conveying mechanism can be switched to a working state to take over the slag, saving the subsequent slag cleaning process, further improving construction efficiency, and ensuring construction quality.

[0018] Optionally, the slag conveying mechanism includes a first conveying frame and a second conveying frame, the first conveying frame is installed on the boom, and the second conveying frame can rotate relative to the first conveying frame to switch the slag conveying mechanism between a storage state and a working state.

[0019] By adopting the above technical solution, the state switching is achieved by flipping, which improves the convenience of state switching. At the same time, the first conveyor frame and the second conveyor frame can cooperate with each other to transfer the received slag to the subsequent process to improve construction efficiency.

[0020] Optionally, a group of first hydraulic cylinders and a group of second hydraulic cylinders are connected to the upper arm, the first hydraulic cylinder and the second second hydraulic cylinder are respectively hinged to the two ends of the first conveying frame, the first conveying frame and the second conveying frame are relatively rotated via a rotating shaft, the rotating shaft is fixedly connected to the second conveying frame, the rotating shaft is rotatably connected to the first fixed frame, a gear is coaxially fixed on the rotating shaft, a rack is fixedly connected to the upper arm, and the rack is meshed with the gear; When the piston rods of the first hydraulic cylinder and the second hydraulic cylinder are extended, the first conveyor frame moves in a direction away from the upper arm, so that the gear rolls on the rack, thereby driving the rotating shaft to rotate, thereby driving the second conveyor frame to rotate until the end of the second conveyor frame away from the first conveyor frame is located below the quick-release plate.

[0021] Through the above technical solution, when the second conveyor rack needs to be switched to the working state, the piston rods of the first hydraulic cylinder and the second hydraulic cylinder are extended, driving the first conveyor rack to move in the direction away from the upper arm. At this time, the gear rolls on the rack, thereby driving the rotating shaft to rotate, thereby driving the second conveyor rack to rotate until the end of the second conveyor rack away from the first conveyor rack is located below the quick-release plate.

[0022] Optionally, the second conveyor frame is fixedly connected to a silicone hopper at one end away from the first conveyor frame, and the silicone hopper is used to contact the slope and deform to fit the slope; a conveyor shaft is rotatably connected to the first conveyor frame, and a second conveyor shaft is rotatably connected to the second conveyor frame, and a conveyor belt is sleeved between the first conveyor shaft and the second conveyor shaft, and an adjustment groove is provided on the side wall of the second conveyor frame along its own length direction, and the second conveyor shaft slides in the adjustment groove, and a guide rod is fixedly connected in the adjustment groove along its own direction, and the guide rod is arranged to pass through the second conveyor shaft, and a compression spring is sleeved on the guide rod, and the compression spring is located on the side of the second conveyor shaft close to the connection position between the first conveyor frame and the second conveyor frame.

[0023] By adopting the above technical solution, the silicone hopper is relatively soft and can deform when it comes into contact with the slope so as to fit the slope and better receive the debris generated by the grooving knife when it is working; when the second conveyor frame switches between the storage state and the working state, the conveyor belt will also switch between the folding state and the unfolding state, and the cooperation between the second conveyor shaft and the compression spring can ensure that the conveyor belt is always in a tensioned state, ensuring that the conveyor belt can work normally while avoiding the possibility of the conveyor belt breaking when it is folded.

[0024] A lattice beam construction method comprises the following steps: S1. Use a notching machine to carve a grid groove on the slope and drive the prestressed anchor cable (anchor rod) into the grid groove; S2. Place the above-mentioned prefabricated straight beams in the lattice grooves, and tie the connecting steel bars on adjacent prefabricated straight beams with steel wire to form a steel cage. Pass the prestressed anchor cables (anchor rods) through the steel cage and install them on the prefabricated straight beams in the lattice grooves from bottom to top. S3. After the prefabricated straight beams are installed, a cross-shaped area to be poured is formed between four adjacent prefabricated straight beams, and formwork is installed outside the cross-shaped area to be poured; S4. Pour concrete into the "X"-shaped area to be poured, so that the four adjacent precast straight beams form a whole; S5. Pour all the "cross"-shaped areas to be poured, complete the construction of the lattice beams, and remove the formwork.

[0025] Through the above technical solution: through the prefabrication of prefabricated straight beams, the part of the lattice beam that needs to be cast is reduced, the number of templates is saved, and the construction efficiency is improved. The prefabricated straight beam can be applied to both the vertical and horizontal sections of the "well" shaped lattice beam. Only one mold is needed to achieve production. Batch prefabrication is relatively convenient and low in cost. In addition, the connecting steel bars can be directly connected to the connecting steel bars of adjacent prefabricated straight beams through steel wire to form a steel cage, which greatly improves the convenience and efficiency of construction. The bottom-up installation method adopted during the installation of the prefabricated straight beams can ensure the stability of the prefabricated straight beams in the vertical direction, and the prefabricated straight beams in the vertical direction can be prevented from slipping by binding with steel wire. At the same time, this binding method to form a steel cage also facilitates the anchor cable prestressed anchor cable (anchor rod) to pass through the steel cage.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The use of prefabricated straight beams reduces the amount of casting required, improving construction efficiency. Prefabricated straight beams can be used for both the vertical and horizontal sections of the "well"-shaped lattice beams, requiring only one mold. This makes batch prefabrication convenient and cost-effective. Furthermore, connecting steel bars can be directly connected to the connecting steel bars of adjacent prefabricated straight beams via steel wire to form a steel cage, significantly improving construction convenience and efficiency. 2. During the installation and transportation of the prefabricated straight beam, the connecting sleeve is in a retracted state to facilitate transportation and reduce the possibility of interference during installation. After the prefabricated straight beam is installed to the corresponding position, the connecting sleeve is switched to an expanded state to facilitate connecting the connecting sleeve with the connecting steel bars or connecting sleeves of the adjacent prefabricated straight beams through steel wires, thereby forming a steel cage; 3. The cooperation between the stopper sleeve and the stopper block can prevent the connection sleeve from separating from the connected steel bars, thereby improving the overall stability of the steel cage; 4. The grouting groove is convenient for concrete to enter during pouring, so as to improve the bonding strength between the steel cage and concrete; 5. The quick-release plate makes it easy to replace the notching knife or lifting tool, so that notching and lifting can be completed with one device, saving costs, saving construction space, and facilitating construction management; 6. When the slag conveying mechanism is in the retracted state, it can reduce the possibility of interference with other buildings or equipment. When the equipment is carving grooves, the slag conveying mechanism can switch to the working state to take over the slag, saving the subsequent slag cleaning process, further improving construction efficiency and ensuring construction quality; 7. The state switching is achieved by flipping, which improves the convenience of state switching. At the same time, the first conveyor frame and the second conveyor frame can cooperate with each other to transfer the received debris to the subsequent process, thereby improving construction efficiency. When the second conveyor frame needs to be switched to the working state, the piston rods of the first hydraulic cylinder and the second hydraulic cylinder are extended, driving the first conveyor frame to move in the direction away from the boom. At this time, the gear rolls on the rack, thereby driving the rotating shaft to rotate, thereby driving the second conveyor frame to rotate until the end of the second conveyor frame away from the first conveyor frame is located below the quick-release plate; 8. The silicone hopper is relatively soft, so it can deform when it comes into contact with the slope, so that it can fit the slope and better absorb the debris generated by the groove cutter. When the second conveyor rack switches between the storage state and the working state, the conveyor belt also switches between the folding state and the unfolding state. The cooperation between the second conveyor shaft and the compression spring can ensure that the conveyor belt is always in a tensioned state, ensuring the normal operation of the conveyor belt while preventing the possibility of the conveyor belt breaking when folding. 9. By prefabricating prefabricated straight beams, the part of the lattice beam that needs to be cast is reduced, the number of templates is saved, and the construction efficiency is improved. The prefabricated straight beams can be applied to both the vertical and horizontal sections of the "well" shaped lattice beam. Only one mold is needed for production, and batch prefabrication is relatively convenient and low in cost. In addition, the connecting steel bars can be directly connected to the connecting steel bars of the adjacent prefabricated straight beams through steel wires to form a steel cage, which greatly improves the convenience and efficiency of construction. The bottom-up installation method adopted during the installation of the prefabricated straight beams can ensure the stability of the prefabricated straight beams in the vertical direction, and the prefabricated straight beams in the vertical direction can be prevented from slipping by binding with steel wires. At the same time, this binding method to form a steel cage also facilitates the anchor cable prestressed anchor cable (anchor rod) to pass through the steel cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram embodying the construction of the lattice beam in the present invention.

[0028] Figure 2 It is a structural schematic diagram of a connecting sleeve in another embodiment of the present invention.

[0029] Figure 3 It is a structural schematic diagram of the construction equipment in the present invention.

[0030] Figure 4 It is a schematic diagram of the partial structure of the sling in the present invention.

[0031] Figure 5 It is a schematic diagram of the partial structure of the gear and rack in the present invention.

[0032] Figure 6 It is a partial structural diagram of the second transmission shaft and the guide rod in the present invention.

[0033] In the figure, 1. grid groove; 11. "X"-shaped area to be poured; 2. prefabricated straight beam; 21. connecting steel bar; 22. connecting sleeve; 23. block; 24. block sleeve; 25. grouting groove; 3. notcher body; 31. upper arm; 32. lower arm; 33. quick-release plate; 34. notcher; 35. sling; 36. slag conveying mechanism; 361. first conveyor frame; 362. second conveyor frame; 3621. second conveyor shaft; 3622. conveyor belt; 3523. guide rod; 3624. compression spring; 363. first hydraulic cylinder; 364. second hydraulic cylinder; 366. rotating shaft; 367. gear; 368. rack; 369. silicone hopper. DETAILED DESCRIPTION

[0034] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0035] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be broadly understood, for example, to mean fixed, removable, or integral; mechanically or electrically connected; directly or indirectly through an intermediary; or internally connected between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1 In a first aspect, the present application discloses a lattice beam construction method.

[0037] A lattice beam construction method, referring to Figure 1 , including the following steps: S1. Use a notching machine to carve a "well"-shaped grid groove 1 on the slope, and drive anchor cables (anchor rods) into the cross intersections of the grid groove 1; S2. Place a semi-precast concrete lattice beam structure in the lattice trench 1. The semi-precast concrete lattice beam structure includes precast linear beams 2. Connecting steel bars 21 are pre-reserved on both sidewalls along their length. The precast linear beams 2 are placed and the connecting steel bars 21 on adjacent precast linear beams 2 are tied with steel wire to form a steel cage. During the steel wire tying, the prestressed anchor cables (anchor rods) are also passed through the steel cage to ensure a tight bond between the prestressed anchor cables (anchor rods) and the concrete. It should be noted that the precast linear beams 2 are installed in the lattice trench from the bottom up. This bottom-up installation method ensures the vertical stability of the precast linear beams 2. The steel wire tying prevents the precast linear beams 2 from slipping. This method of forming a steel cage also facilitates the passage of the prestressed anchor cables (anchor rods) through the steel cage.

[0038] Specifically, the semi-precast concrete lattice beam structure includes a precast linear beam 2, each of which has connecting steel bars 21 pre-reserved on both sidewalls along its length. The connecting steel bars 21 are used to connect with the connecting steel bars 21 of other precast linear beams 2 to form a reinforcement cage. The provision of the precast linear beams 2 reduces the amount of casting required, improving construction efficiency. The precast linear beams 2 can be applied to both the vertical and horizontal sections of a "well"-shaped lattice beam, requiring only a single mold, making batch prefabrication convenient and cost-effective. Furthermore, the connecting steel bars 21 can be directly connected to the connecting steel bars 21 of adjacent precast linear beams 2 via steel wire to form a reinforcement cage, significantly improving construction convenience and efficiency. The length of the connecting steel bars 21 can be seven-eighths of the distance between two adjacent precast linear beams 2 in the same direction. During installation, the precast linear beams 2 can be first placed in the lattice groove 1, and then the distance between adjacent precast linear beams 2 in the same direction can be controlled by sliding, allowing the connecting steel bars 21 to be tied with steel wire to form a reinforcement cage. The connecting steel bars 21 can be bent at a certain angle during installation to avoid interference between the connecting steel bars 21 on adjacent prefabricated straight beams 2 .

[0039] S3. After the precast linear beams 2 are installed, a cross-shaped pouring area 11 is formed between four adjacent precast linear beams 2. The connecting steel bars 21 of these four adjacent precast linear beams 2 are also tied together to form a cross-shaped reinforcement cage. Formwork is then installed outside the cross-shaped pouring area 11, with a portion of the formwork inserted into the slope to ensure securement.

[0040] S4, pouring concrete in the "cross" shaped area to be poured 11, so that the four adjacent prefabricated straight beams 2 form a whole; S5. Cast all the "cross"-shaped areas to be cast 11, complete the construction of the lattice beam, and remove the formwork.

[0041] This process reduces the part of the lattice beam that needs to be cast by prefabricated straight beams 2, saves the number of templates, and improves construction efficiency. The prefabricated straight beams 2 can be applied to both the vertical and horizontal sections of the "well"-shaped lattice beam. Only one mold is needed for production, and batch prefabrication is convenient and low-cost. In addition, the connecting steel bars 21 can be directly connected to the connecting steel bars 21 of adjacent prefabricated straight beams 2 through steel wire to form a steel cage, which greatly improves the convenience and efficiency of construction.

[0042] Example 2 The difference from the first embodiment is that, referring to Figure 2 , a connecting sleeve 22 is sleeved on the connecting steel bar 21, and the connecting sleeve 22 has a contracted state and an expanded state. When the connecting sleeve 22 is in the contracted state, one end of the connecting sleeve 22 abuts against the prefabricated straight beam 2. When the connecting sleeve 22 is in the expanded state, the connecting sleeve 22 is located at the end of the connecting steel bar 21 away from the prefabricated straight beam 2. In this embodiment, the length of the connecting steel bar 21 can be about three-eighths of the distance between two adjacent prefabricated straight beams 2 in the same direction. During the installation and transportation of the prefabricated straight beam 2, the connecting sleeve 22 is in a contracted state to facilitate transportation, while reducing the possibility of interference during the installation process and improving installation efficiency. After the prefabricated straight beam 2 is installed to the corresponding position, the connecting sleeve 22 switches to the expanded state, which facilitates the connection of the connecting sleeve 22 with the connecting steel bar 21 or the connecting sleeve 22 of the adjacent prefabricated straight beam 2 through a steel wire, thereby forming a steel cage.

[0043] Specifically, a stopper 23 is connected to the end of the connecting steel bar 21 away from the prefabricated linear beam 2, and a stopper 24 is connected to the end of the connecting sleeve 22 facing the prefabricated linear beam 2. The stopper 24 is used to abut against the stopper 23 to prevent the connecting sleeve 22 from separating from the connecting steel bar 21. The cooperation between the stopper 24 and the stopper 23 facilitates the prevention of separation between the connecting sleeve 22 and the connecting steel bar 21, thereby improving the overall stability of the steel cage.

[0044] Furthermore, grouting grooves 25 are provided on the sidewalls of the connecting sleeve 22. These grooves facilitate the entry of concrete during concrete pouring, thereby enhancing the bond strength between the reinforcing cage and the concrete. Preferably, the grouting grooves 25 extend circumferentially through the connecting sleeve 22 to save material, reduce weight, and facilitate processing.

[0045] It should be noted that a locking bolt may be threadedly connected to the connecting sleeve 22 so as to fix the connecting sleeve 22 in the corresponding state when the connecting sleeve 22 is switched to the retracted state or the expanded state, thereby reducing the possibility of the connecting sleeve 22 sliding randomly.

[0046] In a second aspect, the present application discloses a construction equipment.

[0047] A construction equipment is used in the above-mentioned grid ditch beam construction process to construct the grid ditch 1 and hoist the prefabricated straight beam 2. Figure 3 Only Figure 6 The machine body 3 includes a notching machine body 3, a large arm 31 connected to the large arm 31, a small arm 32 connected to the small arm 32, and a quick-release plate 33 connected to the small arm 32. The quick-release plate 33 is used to install a notching blade 34 or a lifting device 35. When the lifting device 35 is installed on the quick-release plate 33, the lifting device 35 can lift the prefabricated straight beam 2. The quick-release plate facilitates the replacement of the notching blade 34 or the lifting device 35, thereby achieving notching and lifting with a single device, saving costs, saving construction space, and facilitating construction management.

[0048] Specifically, the boom 31 is equipped with a slag conveying mechanism 36, which has two positions: a stowed state and an operational state. In the stowed state, the slag conveying mechanism 36 is retracted beneath the boom 31. In the operational state, one end of the slag conveying mechanism 36 extends below the quick-release plate 33 to receive slag. The retracted state reduces the possibility of interference with other structures or equipment. When the equipment is carving grooves, the slag conveying mechanism 36 can be switched back to the operational state to receive slag, eliminating the need for subsequent slag cleaning, further improving construction efficiency, and ensuring construction quality.

[0049] More specifically, the slag conveying mechanism 36 includes a first conveying frame 361 and a second conveying frame 362. The first conveying frame 361 is mounted on the boom 31, and the second conveying frame 362 can rotate relative to the first conveying frame 361 to switch the slag conveying mechanism 36 between a storage state and an operating state. This state switching is achieved by flipping, which improves the convenience of state switching. At the same time, the first conveying frame 361 and the second conveying frame 362 can cooperate with each other to transfer the received slag to subsequent processes, thereby improving construction efficiency.

[0050] A first hydraulic cylinder 363 and a second hydraulic cylinder 364 are connected to the arm 31. The first hydraulic cylinder 363 and the second hydraulic cylinder 364 are hingedly connected to the ends of the first conveyor frame 361, respectively. The first conveyor frame 361 and the second conveyor frame 362 are pivoted relative to each other via a rotating shaft 366. The rotating shaft 366 is fixedly connected to the second conveyor frame 362 and rotatably connected to the first fixed frame. A gear 367 is coaxially fixed to the rotating shaft 366. A rack 368 is fixedly connected to the arm 31 and meshes with the gear 367. When the piston rods of the first and second hydraulic cylinders 363 and 364 are extended, the first conveyor frame 361 moves away from the arm 31, causing the gear 367 to roll on the rack 368, thereby driving the rotating shaft 366 to rotate, thereby driving the second conveyor frame 362 to rotate until the end of the second conveyor frame 362 away from the first conveyor frame 361 is located below the quick-release plate 33. When it is necessary to switch the second conveyor frame 362 to the working state, the piston rods of the first hydraulic cylinder 363 and the second hydraulic cylinder 364 are extended, driving the first conveyor frame 361 to move in the direction away from the upper arm 31. At this time, the gear 367 rolls on the rack 368, thereby driving the rotating shaft 366 to rotate, thereby driving the second conveyor frame 362 to rotate until the end of the second conveyor frame 362 away from the first conveyor frame 361 is located below the quick release plate 33.

[0051] Furthermore, a conveying shaft is rotatably connected to the first conveying frame 361, and a second conveying shaft 3621 is rotatably connected to the second conveying frame 362. A conveyor belt 3622 is sleeved between the first conveying shaft and the second conveying shaft 3621. An adjustment groove is opened on the side wall of the second conveying frame 362 along its own length direction. The second conveying shaft 3621 slides in the adjustment groove. A guide rod 3523 is fixedly connected in the adjustment groove along its own direction. The guide rod 3523 is set through the second conveying shaft 3621. A compression spring 3624 is sleeved on the guide rod 3523. The compression spring 3624 is located on the side of the second conveying shaft 3621 close to the connection position between the first conveying frame 361 and the second conveying frame 362. When the second conveyor rack 362 switches between the storage state and the working state, the conveyor belt 3622 will also switch between the folded state and the unfolded state. The cooperation between the second conveyor shaft 3621 and the compression spring 3624 can ensure that the conveyor belt 3622 is always in a tensioned state, ensuring that the conveyor belt 3622 can work normally while avoiding the possibility of the conveyor belt 3622 breaking when folded.

[0052] Furthermore, a silicone hopper 369 is fixedly connected to the end of the second conveyor frame 362 away from the first conveyor frame 361. The silicone hopper 369 is designed to contact and deform to conform to the slope. Because the silicone hopper 369 is relatively flexible, it deforms upon contact with the slope, conforming to the slope and thereby better absorbing the debris generated by the notching blade 34.

[0053] It should be noted that when the second conveyor frame 362 is in the stored state, it can be tied to the first conveyor frame 361 with a rope to reduce the possibility of the second conveyor frame 362 shaking during the movement of the notching machine body 3, while also reducing the load between the gear 367 and the rack 368. When the second conveyor frame 362 is switched to the working state, a rope is also installed between the second conveyor frame 362 and the small arm 32 to prevent the second conveyor frame 362 from breaking.

[0054] Example 3 The difference from Example 2 is that a third hydraulic cylinder is installed on the side wall of the second conveying frame 362, and the movable end of the third hydraulic cylinder is rotatably connected to the second conveying shaft 3621. The third hydraulic cylinder is used to tighten and loosen the conveyor belt 3622 so that the conveyor belt 3622 can adapt to different states. However, this method requires a larger gear 367 and rack 368 to bear the increased load of the third hydraulic cylinder.

[0055] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A semi-precast concrete lattice beam structure, characterized in that: The invention comprises a prefabricated straight beam (2), wherein connecting steel bars (21) are reserved on both side walls of the prefabricated straight beam (2) along its own length direction, and the connecting steel bars (21) are used to connect with the connecting steel bars (21) of other prefabricated straight beams (2) to form a steel cage.

2. The semi-precast concrete lattice beam structure according to claim 1, characterized in that: A connecting sleeve (22) is sleeved on the connecting steel bar (21), and the connecting sleeve (22) has a contracted state and an expanded state. When the connecting sleeve (22) is in the contracted state, one end of the connecting sleeve (22) abuts against the prefabricated straight beam (2), and when the connecting sleeve (22) is in the expanded state, the connecting sleeve (22) is located at the end of the connecting steel bar (21) away from the prefabricated straight beam (2).

3. The semi-precast concrete lattice beam structure according to claim 2, characterized in that: One end of the connecting steel bar (21) away from the prefabricated straight beam (2) is connected to a stopper (23), and one end of the connecting sleeve (22) facing the prefabricated straight beam (2) is connected to a stopper (24), and the stopper (24) is used to abut against the stopper (23) to prevent the connecting sleeve (22) from separating from the connecting steel bar (21).

4. The semi-precast concrete lattice beam structure according to claim 3, characterized in that: A grouting groove (25) is provided on the side wall of the connecting sleeve (22).

5. A construction equipment, characterized in that: The invention comprises a notching machine body (3), wherein the notching machine body (3) is connected to a large arm (31), the large arm (31) is connected to a small arm (32), the small arm (32) is connected to a quick-release plate (33), the quick-release plate (33) is used to install a notching knife (34) or a sling (35), and when the sling (35) is installed on the quick-release plate (33), the sling (35) can sling a semi-precast concrete lattice beam structure according to any one of claims 1 to 4.

6. A construction equipment according to claim 5, characterized in that: A slag conveying mechanism (36) is installed on the arm (31), and the slag conveying mechanism (36) has a storage state and a working state; When the slag conveying mechanism (36) is in the storage state, the slag conveying mechanism (36) is retracted below the arm (31); when the slag conveying mechanism (36) is in the working state, one end of the slag conveying mechanism (36) extends to the bottom of the quick-release plate (33) to receive the slag.

7. The construction equipment according to claim 6, characterized in that: The slag conveying mechanism (36) comprises a first conveying frame (361) and a second conveying frame (362), wherein the first conveying frame (361) is mounted on the arm (31), and the second conveying frame (362) is rotatable relative to the first conveying frame (361) so as to switch the slag conveying mechanism (36) between a storage state and a working state.

8. The construction equipment according to claim 7, characterized in that: The arm (31) is connected to a group of first hydraulic cylinders (363) and a group of second hydraulic cylinders (364). The first hydraulic cylinder (363) and the second second hydraulic cylinder (364) are respectively hinged to the two ends of the first conveying frame (361). The first conveying frame (361) and the second conveying frame (362) are relatively rotated via a rotating shaft (366). The rotating shaft (366) is fixedly connected to the second conveying frame (362). The rotating shaft (366) is rotatably connected to the first fixed frame. A gear (367) is coaxially fixed on the rotating shaft (366). A rack (368) is fixedly connected to the arm (31), and the rack (368) is meshed with the gear (367). When the piston rods of the first hydraulic cylinder (363) and the second hydraulic cylinder (364) are extended, the first conveying frame (361) moves in a direction away from the upper arm (31), so that the gear (367) rolls on the rack (368), thereby driving the rotating shaft (366) to rotate, thereby driving the second conveying frame (362) to rotate until the end of the second conveying frame (362) away from the first conveying frame (361) is located below the quick release plate (33).

9. The construction equipment according to claim 8, characterized in that: The second conveying frame (362) is fixedly connected to one end away from the first conveying frame (361) with a silicone hopper (369), and the silicone hopper (369) is used to contact the slope and deform to fit the slope; the first conveying frame (361) is rotatably connected to a conveying shaft, and the second conveying frame (362) is rotatably connected to a second conveying shaft (3621), and a conveyor belt (3622) is sleeved between the first conveying shaft and the second conveying shaft (3621). An adjustment groove is provided on the side wall along its length direction, and the second conveying shaft (3621) slides in the adjustment groove. A guide rod (3523) is fixedly connected in the adjustment groove along its direction. The guide rod (3523) passes through the second conveying shaft (3621). A compression spring (3624) is sleeved on the guide rod (3523). The compression spring (3624) is located on the side of the second conveying shaft (3621) close to the connection position between the first conveying rack (361) and the second conveying rack (362).

10. A lattice beam construction method, characterized in that: The steps include: S1, using a notching machine to carve a grid groove (1) on the slope, and driving an anchor cable prestressed anchor cable (anchor rod) into the grid groove (1); S2. Place the prefabricated straight beam (2) according to any one of claims 1 to 4 in the lattice groove (1), and tie the connecting steel bars (21) on the adjacent prefabricated straight beams (2) with steel wire to form a steel cage, pass the anchor cable prestressed anchor cable (anchor rod) through the steel cage, and install the prefabricated straight beam (2) in the lattice groove in a bottom-up installation manner; S3. After the prefabricated straight beams (2) are installed, a "cross"-shaped area to be poured (11) is formed between four adjacent prefabricated straight beams (2), and a template is installed outside the "cross"-shaped area to be poured (11); S4, pouring concrete in the "X"-shaped area to be poured (11) so that the four adjacent prefabricated straight beams (2) form a whole; S5, pouring all the "cross" shaped areas to be poured (11), completing the construction of the lattice beam, and removing the formwork.

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