A mobile spraying device for lattice steel frame shotcrete support

Abstract

This invention relates to the technical field of shotcrete and anchor support for lattice steel frames, and particularly to a mobile shotcrete device for shotcrete and anchor support of lattice steel frames. It includes a suspended telescopic support frame assembly and a suspended fitting frame main body. The suspended fitting frame main body includes a rope suspension body, an outer frame, a shotcrete head, a lifting drive plate, a rotating power unit, an elastic telescopic frame, and a double-headed telescopic wheel assembly. Multiple double-headed telescopic wheel assemblies are provided, with each end of the wheel assembly rotatably connected to the lower end of two elastic telescopic frame bodies. Each end of the double-headed telescopic wheel assembly consists of two coaxial wheels. This invention can automatically fit the double-headed telescopic wheel assembly against the transverse steel body of the lattice steel frame by utilizing the push of the double-headed telescopic wheel assembly. Combined with the moving clamp and anti-detachment block on the displacement wheel to form a bidirectional clamping, it effectively overcomes the equipment displacement problem caused by the shotcrete back thrust, while simultaneously ensuring that the shotcrete head is stably positioned at a stable distance from the shotcrete position, thus ensuring stable fitting between the device and the steel frame during shotcrete.

Description

Technical Field

[0001] This invention relates to the technical field of shotcrete and anchor support for lattice steel frames, and in particular to a mobile shotcrete device for shotcrete and anchor support of lattice steel frames. Background Technology

[0002] The lattice steel frame shotcrete support is usually assembled on site from multiple sections of transverse H-beams and longitudinal steel walers to form a spatial grid-like rigid skeleton. Its working principle is to actively reinforce the surrounding rock or soil. The lattice steel frame provides strong initial support stiffness, and the shotcrete layer is tightly bonded to the rock and soil, fully mobilizing its self-supporting capacity to form a composite body that shares the load.

[0003] The application of lattice steel frame shotcrete support is quite diverse. In slopes, to prevent soil and rock slippage during subsequent use, lattice steel frame shotcrete support is installed on the surface. Then, concrete slurry is sprayed onto the surface of the installed lattice steel frame shotcrete support to form a solid concrete layer, increasing its strength.

[0004] In underground engineering projects such as slope protection, shotcrete and anchor support is a crucial process for ensuring construction safety. Traditional wet shotcrete techniques often rely on manual hand-held spray guns or simple robotic arms for assistance, which presents the following problems: Uneven spraying: Manual operation is greatly affected by physical strength and experience, resulting in uneven concrete thickness and difficulty in ensuring strength.

[0005] High rebound rate: Due to the inability to precisely control the distance and angle between the spray gun and the sprayed surface, the concrete bounces off the rock surface after impact, resulting in material waste.

[0006] High safety risks: Workers need to operate under incompletely supported rock walls, facing risks such as collapse and dust injuries. Summary of the Invention

[0007] To address the problems mentioned in the background art, the present invention provides a mobile shotcrete device for shotcrete anchor support of lattice steel frames.

[0008] The present invention provides a mobile shotcrete device for shotcrete anchor support of lattice steel frame, which adopts the following technical solution: including a suspended telescopic support frame assembly and a suspended and fitted frame body.

[0009] The suspended telescopic support frame assembly can change its angle and total length according to the angle and length of the slope.

[0010] The main body of the suspended fitting frame is slidably connected to the upper end of the suspended telescopic support frame assembly.

[0011] The main body of the suspended fitting frame includes a rope suspension body, an outer frame, a shotcrete head, a lifting drive plate, a rotating power unit, an elastic telescopic frame, and a double-headed telescopic wheel set.

[0012] The upper end of the rope suspension body is slidably connected to the suspended telescopic support frame assembly.

[0013] The rope suspension body is installed on the outside of the outer frame.

[0014] The shotcrete head is installed on the outside of the outer frame.

[0015] The lifting drive plate is installed inside the outer frame and can move up and down relative to the outer frame.

[0016] The rotary power unit is connected to the lifting drive plate. When the lifting drive plate moves to the uppermost side, the rotary power unit can drive the rope to suspend the main body and rewind.

[0017] Two elastic telescopic frames are provided, and the upper ends of both elastic telescopic frames are connected to the inner side of the outer cover frame. The elastic telescopic frames are located under the lifting drive plate.

[0018] The double-head telescopic wheel assembly is provided in multiple ways. The two ends of the double-head telescopic wheel assembly are rotatably connected to the lower ends of two elastic telescopic frames respectively. Both ends of the double-head telescopic wheel assembly are composed of two coaxial wheels. The rotation power unit drives the double-head telescopic wheel assembly to rotate relative to the elastic telescopic frame. When the lifting drive plate moves upward, it can drive the elastic telescopic frame to retract.

[0019] Optionally, the suspended telescopic support frame assembly includes: The multi-segment telescopic frame has two sections, and the main body of the suspended and fitted frame is located between the two sections.

[0020] The modular base can be modularly disassembled, and one end of the multi-segment telescopic frame is rotatably connected to the modular base, and the multi-segment telescopic frame rotates relative to the modular base.

[0021] The modular suspension frame has multiple telescopic sections whose telescopic ends are connected to one end of the modular suspension frame. The modular suspension frame can be modularly disassembled, and the rope suspension body is slidably connected to the modular suspension frame.

[0022] Optionally, the rope suspension body includes: A rope pulley is rotatably connected to the outside of the outer frame.

[0023] A suspension rope, one end of which is wrapped around the outside of a rope reel.

[0024] A sliding block is slidably inserted into the modular suspension frame, and the suspension rope is connected to the sliding block.

[0025] A wound worm gear assembly, comprising a meshing worm wheel and a worm, wherein the worm wheel portion of the wound worm gear assembly is coaxially mounted with a rope pulley, and the worm portion of the wound worm gear assembly is rotatably connected to an outer casing frame, and an inner groove shaft is coaxially mounted at one end of the worm portion of the wound worm gear assembly located inside the outer casing frame.

[0026] Optionally, the dual-head telescopic wheel assembly includes: A telescopic synchronous shaft, the two ends of which can extend and retract relative to each other, and the two ends of the telescopic synchronous shaft rotate synchronously.

[0027] The system includes two dual-wheel moving groups, with each dual-wheel moving group having its ends coaxially mounted to both ends of a telescopic synchronous shaft.

[0028] Optionally, the rotary power unit includes: A power rotating shaft rotates through the surface of the lifting drive plate and rotates relative to the lifting drive plate. An inner insert prism is installed at the upper end of the power rotating shaft. When the power rotating shaft moves upward with the lifting drive plate, the inner insert prism can be inserted into the inner prism groove shaft.

[0029] The telescopic shaft has two ends that can rotate synchronously, and the upper end of the telescopic shaft is coaxially installed with the power rotation shaft.

[0030] A double-headed telescopic prism shaft is provided, with a connecting frame that can rotate relative to it installed in the middle position. The double-headed telescopic prism shaft is located on the lower side of the telescopic shaft body, and the upper end of the connecting frame is rotatably sleeved on the lower telescopic end of the telescopic shaft body.

[0031] The upper bevel gear meshing assembly consists of two meshing bevel gears, which are coaxially mounted with the middle position of the double-headed telescopic shaft and the lower end of the telescopic shaft body, respectively.

[0032] The long shaft is provided in two parts, and the two long shafts are rotatably connected to the lower ends of the two elastic telescopic frames respectively. Both long shafts are set perpendicular to the axis of the telescopic synchronous shaft.

[0033] The lower bevel gear meshing assembly has two components, each consisting of two meshing bevel gears. The two bevel gears of the lower bevel gear meshing assembly are coaxially mounted with the long shaft and the double-headed telescopic prism shaft, respectively.

[0034] Optionally, a torsion worm gear assembly is installed at one end of the dual-wheel moving group. The torsion worm gear assembly consists of a meshing worm wheel and a worm. The worm part of the torsion worm gear assembly is coaxially mounted with the adjacent long shaft, and the worm wheel part of the torsion worm gear assembly is coaxially mounted with the dual-wheel moving group.

[0035] Optionally, the dual-wheel moving assembly includes two displacement wheels and a connecting cylinder. The connecting cylinder is coaxially installed between the two displacement wheels, and the ends of the two displacement wheels that are far apart from each other are rotatably connected to the lower end of the adjacent elastic telescopic frame.

[0036] Optionally, multiple movable clamping plates are installed through the outer circumference of the displacement wheel, and the multiple movable clamping plates on the outer side of each displacement wheel are evenly distributed in a circular array around the axis of the displacement wheel.

[0037] Multiple movable clamps are installed on the outer sides of two adjacent displacement wheels, with their positions corresponding one-to-one.

[0038] Optionally, each of the two elastic telescopic frames is provided with a side plate on the side away from each other. The two side plates are elastically connected to the lower end of the two elastic telescopic frames respectively. Each side plate is provided with a lifting plate on its lower side. The lifting plate is connected to the lifting drive plate. The lower end of the two lifting plates is L-shaped, and the L-shaped turning point of the lifting plate is beveled.

[0039] A concentric shaft is coaxially arranged inside the connecting cylinder. The concentric shaft is slidably connected to the adjacent elastic telescopic frame. The side plate is connected to the adjacent concentric shaft. Corner blocks are installed on the inner sides of the two displacement wheels connected by the concentric shaft.

[0040] Optionally, an inner plate is slidably inserted into the inner side of the movable clamping plate, the inner plate extends into the inner side of the displacement wheel axis, and the inner plate is elastically connected to the movable clamping plate. An anti-detachment block is slidably inserted into the side of the movable clamping plate near the connecting cylinder on the outer side of the displacement wheel. The anti-detachment block is elastically connected to the movable clamping plate at the inner end. The inner plate is beveled at the end away from the displacement wheel. A roller is contacted on the side of the inner plate near the anti-detachment block, and the roller is rotatably connected to the anti-detachment block.

[0041] In summary, the present invention has the following beneficial technical effects: 1. This invention features a suspended, fitted frame body with an elastic telescopic frame and a double-headed telescopic wheel assembly. Utilizing the spring extension force of the elastic telescopic frame as the lifting drive plate moves downwards, the double-headed telescopic wheel assembly automatically fits against the transverse steel body of the qualified steel frame. Combined with the moving clamp and anti-detachment block on the displacement wheel, this forms a bidirectional clamping mechanism, effectively overcoming the equipment offset problem caused by the spraying back thrust. Simultaneously, it ensures the spraying head remains stable at a constant distance from the spraying position, guaranteeing stable fit between the device and the steel frame during spraying, thus improving spraying accuracy and quality.

[0042] 2. By setting up a modular suspended telescopic support frame assembly, the present invention can adaptively adjust the support angle and total length according to the actual angle and length of the slope, and flexibly increase or decrease the width of the modular components through bolt connection. This solves the problem that traditional equipment cannot adapt to complex terrain and slopes of different spans, and significantly improves the versatility and deployment efficiency of the device under different working conditions.

[0043] 3. This invention, by setting up a displacement wheel structure with a movable clamping plate and an anti-detachment block, when the double-wheel moving assembly is attached to the qualified steel frame, the inner plate is squeezed by the corner block and pushes the anti-detachment block to extend, forming a blocking and limiting effect on the inner side of the transverse steel body, which further enhances the anti-overturning ability of the equipment during the shotcreting process. At the same time, the distribution design of the displacement wheel allows the shotcreting head to move continuously back and forth along the steel frame, and the optimized spraying angle reduces concrete rebound, which significantly reduces material waste while ensuring the uniformity of shotcreting. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the rope suspension body in an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the outer frame in an embodiment of the present invention; Figure 4 This is a schematic diagram of the distribution of the double-head telescopic wheel assembly in an embodiment of the present invention; Figure 5 This is a side view schematic diagram of some structures in an embodiment of the present invention; Figure 6 This is a schematic diagram of the distribution of the inner groove shaft and the inner insertion shaft in an embodiment of the present invention; Figure 7 This is a top view schematic diagram of some structures in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the rotating power unit in an embodiment of the present invention; Figure 9 This is a schematic diagram of the distribution of the elastic telescopic frame in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the dual-wheel moving assembly in an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure inside the movable clamping plate in an embodiment of the present invention.

[0045] Reference numerals: 1. Suspended telescopic support frame assembly; 11. Multi-section telescopic frame; 12. Modular base; 13. Modular suspension frame; 2. Suspended fitting frame main body; 21. Rope suspension main body; 211. Rope pulley; 212. Suspension rope; 213. Sliding block; 214. Winding worm gear assembly; 215. Inner groove shaft; 22. Outer frame; 23. Shotcrete head; 24. Lifting drive plate; 25. Rotary power unit; 251. Power rotation shaft; 252. Inner rib shaft; 253. Telescopic shaft body; 254. Double 255. Head telescopic prism shaft; 256. Connecting frame; 257. Upper bevel gear meshing assembly; 258. Long shaft; 259. Lower bevel gear meshing assembly; 200. Torsional worm gear assembly; 201. Elastic telescopic frame; 202. Double-head telescopic wheel assembly; 271. Telescopic synchronous shaft; 272. Double wheel moving assembly; 2721. Displacement wheel; 2722. Connecting cylinder; 2723. Moving clamp; 2724. Inner plate; 2725. Roller; 2726. Anti-detachment block; 28. Side plate; 29. ​​Lifting plate; 291. Concentric shaft; 292. Corner block. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0047] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0048] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0050] The following is in conjunction with the appendix Figures 1-11 The present invention will be described in further detail below.

[0051] This invention discloses a mobile shotcrete device for shotcrete anchor support of lattice steel frames. For example... Figures 1-11 As shown, it includes a suspended telescopic support frame assembly 1 and a suspended fitting frame body 2.

[0052] The suspended telescopic support frame 1 can change its angle and total length according to the angle and length of the slope, and the suspended and fitted frame body 2 is slidably connected to the upper end of the suspended telescopic support frame 1.

[0053] The main body 2 of the suspended frame includes a rope suspension body 21, an outer frame 22, a shotcrete head 23, a lifting drive plate 24, a rotating power unit 25, an elastic telescopic frame 26, and a double-headed telescopic wheel set 27.

[0054] The upper end of the rope suspension body 21 is slidably connected to the suspended telescopic support frame 1. The rope suspension body 21 is installed on the outside of the outer cover frame 22, and the shotcrete head 23 is installed on the outside of the outer cover frame 22.

[0055] Specifically, the suspended telescopic support frame assembly 1 includes a multi-section telescopic frame 11, a modular base 12, and a modular suspension frame 13.

[0056] There are two multi-segment telescopic frames 11. The main body 2 of the suspended frame is set between the two multi-segment telescopic frames 11. When in use, the multi-segment telescopic frames 11 can extend and retract in multiple segments to adapt to slopes of different lengths.

[0057] The modular base 12 can be modularly disassembled. One end of the multi-segment telescopic frame 11 is rotatably connected to the modular base 12. The multi-segment telescopic frame 11 rotates relative to the modular base 12. The telescopic end of the multi-segment telescopic frame 11 is connected to one end of the modular suspension frame 13. The modular suspension frame 13 can be modularly disassembled. The rope suspension body 21 is slidably connected to the modular suspension frame 13.

[0058] Specifically, the modular components between the modular base 12 and the modular suspension bracket 13 are all connected by bolts. Based on the ability to be disassembled, the length of the modular base 12 and the modular suspension bracket 13 can be adapted to increase the slope width of the working environment.

[0059] The lifting drive plate 24 is installed inside the outer frame 22. The lifting drive plate 24 can move up and down relative to the outer frame 22. The rotary power unit 25 is connected to the lifting drive plate 24. The outer frame 22 is equipped with a power telescopic rod that drives the lifting drive plate 24 to move. The power telescopic rod is preferably an electric telescopic rod or a hydraulic cylinder. When the lifting drive plate 24 moves to the uppermost side, the rotary power unit 25 can drive the rope suspension body 21 to rewind.

[0060] Furthermore, in an alternative embodiment, the rope suspension body 21 includes a rope pulley 211, a suspension rope 212, a sliding block 213, and a wound worm gear assembly 214.

[0061] The rope wheel 211 is rotatably connected to the outside of the outer frame 22. One end of the suspension rope 212 is wrapped around the outside of the rope wheel 211. The sliding block 213 is slidably inserted into the inside of the modular suspension frame 13. The suspension rope 212 is connected to the sliding block 213.

[0062] When the rope wheel 211 rotates in both directions, it can respectively wind up and unwind the suspension rope 212, thereby controlling the height of the outer frame 22.

[0063] The wound worm gear assembly 214 is composed of a meshing worm wheel and a worm. The worm wheel part of the wound worm gear assembly 214 is coaxially mounted with the rope wheel 211, and the worm part of the wound worm gear assembly 214 is rotatably connected to the outer cover frame 22. The worm part of the wound worm gear assembly 214 is located inside the outer cover frame 22 and is coaxially mounted with an inner groove shaft 215 at one end. The bottom of the inner groove shaft 215 is provided with a groove.

[0064] During operation, the meshing characteristics of the worm and worm wheel in the worm gear assembly 214 ensure that when the worm is not driven, the suspension tension on the suspension rope 212 will not reverse and drive the rope wheel 211 and worm wheel to rotate.

[0065] Two elastic telescopic frames 26 are provided, and the upper ends of both elastic telescopic frames 26 are connected to the inner side of the outer frame 22. The elastic telescopic frames 26 are located under the lifting drive plate 24. Multiple double-headed telescopic wheel sets 27 are provided. The two ends of the double-headed telescopic wheel sets 27 are rotatably connected to the lower ends of the two elastic telescopic frames 26 respectively. The two ends of the double-headed telescopic wheel sets 27 are composed of two coaxial wheels. The rotation power unit 25 drives the double-headed telescopic wheel sets 27 to rotate relative to the elastic telescopic frames 26. When the lifting drive plate 24 moves upward, it can drive the elastic telescopic frames 26 to retract.

[0066] The elastic telescopic frame 26 consists of two relatively sliding frames connected by a spring, which pushes the two relatively sliding frames away from each other.

[0067] Specifically, the double-headed telescopic wheel assembly 27 includes a telescopic synchronous shaft 271 and a double-wheel moving assembly 272.

[0068] The two ends of the telescopic synchronous shaft 271 can extend and retract relative to each other, and the two ends of the telescopic synchronous shaft 271 rotate synchronously. There are two double wheel moving groups 272. The two ends of the two double wheel moving groups 272 are respectively coaxially installed with the two ends of the telescopic synchronous shaft 271. The telescopic synchronous shaft 271 drives the two connected double wheel moving groups 272 to rotate synchronously.

[0069] Specifically, the rotary power unit 25 includes a power rotary shaft 251, a telescopic shaft 253, a double-headed telescopic prism shaft 254, an upper bevel gear meshing assembly 256, a long shaft 257, and a lower bevel gear meshing assembly 258.

[0070] The power rotating shaft 251 rotates through the surface of the lifting drive plate 24. The power rotating shaft 251 rotates relative to the lifting drive plate 24. An inner insert prism shaft 252 is installed at the upper end of the power rotating shaft 251. When the power rotating shaft 251 moves upward with the lifting drive plate 24, the inner insert prism shaft 252 can be inserted into the inner prism groove shaft 215.

[0071] Specifically, a remote control motor that drives the power rotating shaft 251 to rotate is installed on the surface of the lifting drive plate 24. When the lifting drive plate 24 moves upward, it can push the inner insertion shaft connected to the power rotating shaft 251 to insert into the groove of the inner groove shaft 215.

[0072] The two ends of the telescopic shaft 253 can rotate synchronously. The upper end of the telescopic shaft 253 is coaxially installed with the power rotating shaft 251. A connecting frame 255 that can rotate relative to the middle position of the double-headed telescopic shaft 254 is installed. The double-headed telescopic shaft 254 is located on the lower side of the telescopic shaft 253. The upper end of the connecting frame 255 is rotatably sleeved on the lower telescopic end of the telescopic shaft 253. When the lifting drive plate 24 moves up and down, the telescopic shaft 253 extends and retracts synchronously.

[0073] The upper bevel gear meshing assembly 256 consists of two meshing bevel gears. The two bevel gears of the upper bevel gear meshing assembly 256 are coaxially installed with the middle position of the double-headed telescopic shaft 254 and the lower end of the telescopic shaft body 253, respectively. The telescopic shaft body 253 drives the double-headed telescopic shaft 254 to rotate through the meshing transmission of the upper bevel gear meshing assembly 256.

[0074] There are two long shafts 257, which are rotatably connected to the lower ends of two elastic telescopic frames 26 respectively. Both long shafts 257 are perpendicular to the axis of the telescopic synchronous shaft 271. There are two lower bevel gear meshing assemblies 258, which are composed of two meshing bevel gears. The two bevel gears of the lower bevel gear meshing assembly 258 are coaxially installed with the long shafts 257 and the double-headed telescopic prism shaft 254 respectively.

[0075] A torsion worm gear assembly 259 is installed at one end of the dual-wheel moving assembly 272. The torsion worm gear assembly 259 consists of a meshing worm wheel and a worm. The worm part of the torsion worm gear assembly 259 is coaxially mounted with the adjacent long shaft 257, and the worm part of the torsion worm gear assembly 259 is coaxially mounted with the dual-wheel moving assembly 272. The double-headed telescopic shaft 254 drives the two long shafts 257 to rotate through the transmission of the lower bevel gear meshing assemblies 258 at both ends. The long shafts 257 drive the dual-wheel moving assembly 272 to rotate through the corresponding torsion worm gear assemblies 259.

[0076] Furthermore, in an optional embodiment, the dual-wheel moving assembly 272 includes two displacement wheels 2721 and a connecting cylinder 2722. The connecting cylinder 2722 is coaxially mounted between the two displacement wheels 2721, and the two displacement wheels 2721 are rotatably connected to the lower end of the adjacent elastic telescopic frame 26 at one end away from each other.

[0077] In the shotcrete process, when the shotcrete head 23 is driven to perform shotcrete, the two displacement wheels 2721 in the double-wheel moving assembly 272 respectively contact and limit the transverse steel body of the lattice steel frame, so that when the two displacement wheels 2721 of the double-wheel moving assembly 272 rotate, they can apply external force to the transverse steel body of the lattice steel frame, drive the outer cover frame 22 and the shotcrete head 23 to move laterally, and the shotcrete head 23 can spray concrete slurry toward the lattice steel frame.

[0078] Multiple movable clamping plates 2723 are installed through the outer circumference of the displacement wheel 2721. The multiple movable clamping plates 2723 on the outer side of each displacement wheel 2721 are evenly distributed in a circular array around the axis of the displacement wheel 2721. The positions of the multiple movable clamping plates 2723 installed on the outer side of two adjacent displacement wheels 2721 are distributed in a one-to-one correspondence.

[0079] In use, the transverse steel frame of the lattice steel frame is located between the movable clamps 2723 connected by the two movable wheels, so that the movable clamps 2723 can support the transverse steel frame of the lattice steel frame, and the outer frame 22 can move horizontally in a stable manner.

[0080] Each of the two elastic telescopic frames 26 has a side plate 28 on one side away from each other. The two side plates 28 are elastically connected to the lower ends of the two elastic telescopic frames 26 respectively. Each of the two side plates 28 has a lifting plate 29 on its lower side. The lifting plate 29 is connected to the lifting drive plate 24. The lower ends of the two lifting plates 29 are L-shaped, and the L-shaped turning point of the lifting plate 29 has a beveled angle.

[0081] A concentric shaft 291 is coaxially arranged inside the connecting cylinder 2722. The concentric shaft 291 is slidably connected to the adjacent elastic telescopic frame 26. The side plate 28 is connected to the adjacent concentric shaft 291. Corner blocks 292 are installed on the inner side of the two displacement wheels 2721 connected to the connecting cylinder 2722.

[0082] An inner plate 2724 is slidably inserted into the inner side of the movable clamping plate 2723. The inner plate 2724 extends into the inner side of the axis of the displacement wheel 2721 and is elastically connected to the movable clamping plate 2723. An anti-detachment block 2726 is slidably inserted into the side of the movable clamping plate 2723 located on the outer side of the displacement wheel 2721 near the connecting cylinder 2722. The anti-detachment block 2726 is elastically connected to the movable clamping plate 2723 at one end inside the movable clamping plate 2723. The inner plate 2724 has a chamfered end away from the displacement wheel 2721. A roller 2725 is contacted and arranged on the side of the inner plate 2724 near the anti-detachment block 2726. The roller 2725 is rotatably connected to the anti-detachment block 2726.

[0083] In use, when the movable clamping plate 2723 moves to the side of the displacement wheel 2721 near the lattice steel frame, the inner plate 2724 on the corresponding inner side moves to the corner block 292 surface of the concentric shaft 291, pushing the inner plate 2724 to move away from the concentric shaft 291. The roller 2725 moves from the angle of the inner plate 2724 to the side of the inner plate 2724, pushing the anti-detachment block 2726 out of the movable clamping plate 2723. This ensures that when the movable clamping plate 2723 is located on the side of the displacement wheel 2721 near the lattice steel frame, the anti-detachment block 2726 on the corresponding inner side moves out of the movable clamping plate 2723, blocking the inner side of the transverse part of the lattice steel frame, ensuring that the outer cover frame 22 can still adhere to the outer side of the qualified lattice steel frame under the counter-thrust force generated when the shotcrete head 23 sprays grout.

[0084] Simultaneously, as the lifting drive plate 24 moves away from the lattice steel frame, the chamfer at the L-shaped bend of the lifting plate 29 pushes the side plate 28, causing it to move towards the elastic telescopic frame 26. This moves the concentric shaft 291, causing the corner block 292 to disengage from the inner plate 2724. This causes multiple inner plates 2724 corresponding to the displacement wheel 2721 to move towards the axis of the displacement wheel 2721. At the same time, all the anti-detachment blocks 2726 corresponding to the inner plates 2724 retract into the moving clamp 2723. Then, the L-shaped bend of the lifting plate 29 pushes the side plate 28 upward, causing the displacement wheel 2721 to retract into the outer frame 22. Then, the inner insertion shaft is inserted into the corresponding inner groove shaft 215, driving the rope wheel 211 to rotate. The rope wheel 211 winds and winds the suspension rope 212 through forward and reverse rotation, controlling the height of the outer frame 22 and causing the shotcrete head 23 to perform a reciprocating bending shotcrete working path.

[0085] The working principle is as follows: Before use, according to the length and angle of the slope, assemble the modular base 12 and the modular suspension frame 13, connect the modular components that are adapted to the width of the slope by bolts, unfold the multi-section telescopic frame 11 to a suitable length, and rotate and adjust it to match the angle of the slope to complete the initial deployment of the equipment.

[0086] During operation, the lifting drive plate 24 is driven to move down by the power telescopic rod, which drives the rotating power unit 25 and the elastic telescopic frame 26 to descend synchronously. The elastic telescopic frame 26 extends under the action of the spring, pushing the double-headed telescopic wheel set 27 to fit against the transverse steel body of the qualified steel frame. At the same time, the outer frame 22 has corresponding movable clamping plates 2723 on both sides of the transverse steel body of the lattice steel frame. At this time, the movable clamping plates 2723 close to the transverse steel body of the lattice steel frame pop out the anti-detachment block 2726 under the action of the corner block 292, forming a two-way clamping on the lattice steel frame to ensure stable fitting of the equipment.

[0087] The rotating power unit 25 is activated, and the power rotating shaft 251 drives the double-headed telescopic shaft 254 to rotate through the upper bevel gear meshing assembly 256. The rotation is then transmitted to the long shaft 257 through the lower bevel gear meshing assembly 258. The long shaft 257 drives the double-wheel moving group 272 to rotate through the torsion worm gear assembly 259. The outer frame 22 is moved laterally by the meshing action of the moving clamp 2723 and the lattice steel frame. At the same time, the shotcrete head 23 sprays concrete slurry to evenly fill the gap between the lattice steel frame and the slope. The smaller spray path of the shotcrete head 23 reduces the rebound and fall of concrete after impacting the rock surface, thus reducing material waste.

[0088] When the shotcrete height needs to be adjusted, the lifting drive plate 24 is moved upward, and the lifting plate 29 pushes the side plate 28 inward at an angle, causing the concentric shaft 291 and corner block 292 to disengage from the inner plate 2724, causing the anti-detachment block 2726 to retract into the moving clamp 2723. At the same time, the displacement wheel 2721 in the double wheel moving group 272 disengages from the transverse steel body of the lattice steel frame. The lifting drive plate 24 continues to move upward, and the inner prism shaft 252 is inserted into the inner prism groove shaft 215. The rope wheel 211 is driven to rotate through the winding worm gear assembly 214, and the suspension rope 212 is wound or released to realize the vertical movement of the outer frame 22, changing the working height of the shotcrete head 23. After the working height of the shotcrete head 23 is changed, the lifting drive plate 24 is moved outward from the outer frame 22, and the elastic telescopic frame 26 extends under the action of the spring, pushing the double-headed telescopic wheel group 27 to re-attach to the transverse steel body limit of the qualified lattice steel frame.

[0089] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A mobile shotcrete device for shotcrete anchor support of lattice steel frames, characterized in that, include: The suspended telescopic support frame assembly (1) can change its angle and total length according to the angle and length of the slope. The main body of the suspended fitting frame (2) is slidably connected to the upper end of the suspended telescopic support frame group (1); The main body (2) of the suspended fitting frame includes: The upper end of the rope suspension body (21) is slidably connected to the suspended telescopic support frame assembly (1); The outer frame (22) is provided with the rope suspension body (21) installed on the outside of the outer frame (22); A shotcrete head (23) is installed on the outside of the outer frame (22); The lifting drive plate (24) is installed inside the outer frame (22) and can move up and down relative to the outer frame (22); Rotary power unit (25), which is connected to lifting drive plate (24), when the lifting drive plate (24) moves to the uppermost side, the rotary power unit (25) can drive the rope suspension body (21) to rewind; Two elastic telescopic frames (26) are provided. The upper ends of the two elastic telescopic frames (26) are connected to the inner side of the outer frame (22). The elastic telescopic frames (26) are located under the lifting drive plate (24). The double-headed telescopic wheel assembly (27) is provided in multiple ways. The two ends of the double-headed telescopic wheel assembly (27) are rotatably connected to the lower ends of two elastic telescopic frames (26) respectively. Both ends of the double-headed telescopic wheel assembly (27) are composed of two coaxial wheels. The rotation power unit (25) drives the double-headed telescopic wheel assembly (27) to rotate relative to the elastic telescopic frame (26). When the lifting drive plate (24) moves upward, it can drive the elastic telescopic frame (26) to retract.

2. A mobile shotcrete device for shotcrete anchor support of lattice steel frames according to claim 1, characterized in that: The suspended telescopic support frame assembly (1) includes: A multi-segment telescopic frame (11) is provided in two sections, and the suspended and fitted frame body (2) is located between the two multi-segment telescopic frames (11). Modular base (12), the modular base (12) can be modularly disassembled, one end of multi-segment telescopic frame (11) is rotatably connected to the modular base (12), and the multi-segment telescopic frame (11) rotates relative to the modular base (12); Modular suspension frame (13), the telescopic end of the multi-segment telescopic frame (11) is connected to one end of the modular suspension frame (13), the modular suspension frame (13) can be modularly disassembled, and the rope suspension body (21) is slidably connected to the modular suspension frame (13).

3. A mobile shotcrete device for shotcrete anchor support of lattice steel frames according to claim 2, characterized in that: The rope suspension body (21) includes: Rope wheel (211), which is rotatably connected to the outside of the outer frame (22); A suspension rope (212), one end of which is wrapped around the outside of a rope reel (211); A sliding block (213) is slidably inserted into the modular suspension frame (13), and a suspension rope (212) is connected to the sliding block (213); The worm gear assembly (214) consists of a meshing worm wheel and a worm. The worm wheel part of the worm gear assembly (214) is coaxially mounted with the rope wheel (211). The worm part of the worm gear assembly (214) is rotatably connected to the outer frame (22). The worm part of the worm gear assembly (214) is located inside the outer frame (22) and has an inner groove shaft (215) coaxially mounted at one end.

4. A mobile shotcrete device for shotcrete anchor support of lattice steel frames according to claim 3, characterized in that: The dual-head telescopic wheel assembly (27) includes: Telescopic synchronous shaft (271), the two ends of the telescopic synchronous shaft (271) can extend and retract relative to each other, and the two ends of the telescopic synchronous shaft (271) rotate synchronously; Two dual-wheel moving groups (272) are provided, and the two ends of the two dual-wheel moving groups (272) are respectively coaxially installed with the two ends of the telescopic synchronous shaft (271).

5. A mobile shotcrete device for shotcrete anchor support of lattice steel frames according to claim 4, characterized in that: The rotary power unit (25) includes: A power rotating shaft (251) rotates through the surface of the lifting drive plate (24). The power rotating shaft (251) rotates relative to the lifting drive plate (24). An inner insert prism shaft (252) is installed at the upper end of the power rotating shaft (251). When the power rotating shaft (251) moves upward with the lifting drive plate (24), the inner insert prism shaft (252) can be inserted into the inner prism groove shaft (215). Telescopic shaft (253), both ends of which can rotate synchronously, and the upper end of the telescopic shaft (253) is coaxially installed with the power rotating shaft (251); A double-headed telescopic prism shaft (254) is provided with a connecting frame (255) that can rotate relative to it. The double-headed telescopic prism shaft (254) is located on the lower side of the telescopic shaft body (253), and the upper end of the connecting frame (255) is rotatably sleeved on the lower telescopic end of the telescopic shaft body (253). The upper bevel gear meshing assembly (256) is composed of two meshing bevel gears. The two bevel gears of the upper bevel gear meshing assembly (256) are coaxially installed with the middle position of the double-headed telescopic shaft (254) and the lower end of the telescopic shaft body (253). Two long shafts (257) are provided, and the two long shafts (257) are rotatably connected to the lower ends of the two elastic telescopic frames (26) respectively. Both long shafts (257) are perpendicular to the axis of the telescopic synchronous shaft (271). The lower bevel gear meshing assembly (258) is provided in two parts. The lower bevel gear meshing assembly (258) is composed of two meshing bevel gears. The two bevel gears of the lower bevel gear meshing assembly (258) are respectively coaxially installed with the long shaft (257) and the double-headed telescopic shaft (254).

6. A mobile shotcrete device for shotcrete anchor support of lattice steel frames according to claim 5, characterized in that: One end of the dual-wheel moving assembly (272) is equipped with a torsion worm gear assembly (259). The torsion worm gear assembly (259) consists of a worm wheel and a worm that mesh with each other. The worm part of the torsion worm gear assembly (259) is coaxially installed with the adjacent long shaft (257), and the worm wheel part of the torsion worm gear assembly (259) is coaxially installed with the dual-wheel moving assembly (272).

7. A mobile shotcrete device for shotcrete anchor support of lattice steel frames according to claim 4 or 6, characterized in that: The dual-wheel moving assembly (272) includes two displacement wheels (2721) and a connecting cylinder (2722). The connecting cylinder (2722) is coaxially installed between the two displacement wheels (2721). The two displacement wheels (2721) are rotatably connected to the lower end of the adjacent elastic telescopic frame (26) at one end away from each other.

8. A mobile shotcrete device for shotcrete anchor support of lattice steel frames according to claim 7, characterized in that: Multiple movable clamps (2723) are installed through the outer circumference of the displacement wheel (2721). The multiple movable clamps (2723) on the outer side of each displacement wheel (2721) are evenly distributed in a circular array around the axis of the displacement wheel (2721). Multiple movable clamps (2723) are installed on the outer side of two adjacent displacement wheels (2721), and their positions are distributed in a one-to-one correspondence.

9. A mobile shotcrete device for shotcrete anchor support of lattice steel frames according to claim 1, characterized in that: Two elastic telescopic frames (26) are provided with side plates (28) on opposite sides. The two side plates (28) are elastically connected to the lower ends of the two elastic telescopic frames (26). The lower side of the two side plates (28) is provided with lifting plates (29). The lifting plates (29) are connected to the lifting drive plate (24). The lower ends of the two lifting plates (29) are L-shaped. The L-shaped turning point of the lifting plates (29) is beveled. A concentric shaft (291) is coaxially arranged inside the connecting cylinder (2722). The concentric shaft (291) is slidably connected to the adjacent elastic telescopic frame (26). The side plate (28) is connected to the adjacent concentric shaft (291). Corner blocks (292) are installed inside the two displacement wheels (2721) connected to the connecting cylinder (2722) on the concentric shaft (291).

10. A mobile shotcrete device for shotcrete anchor support of lattice steel frames according to claim 9, characterized in that: An inner plate (2724) is slidably inserted into the inner side of the movable clamping plate (2723). The inner plate (2724) extends into the inner side of the axis of the displacement wheel (2721). The inner plate (2724) is elastically connected to the movable clamping plate (2723). An anti-detachment block (2726) is slidably inserted into the side of the movable clamping plate (2723) near the connecting cylinder (2722) on the outer side of the displacement wheel (2721). The anti-detachment block (2726) is elastically connected to the movable clamping plate (2723) at one end inside the movable clamping plate (2723). The inner plate (2724) is beveled at the end away from the displacement wheel (2721). A roller (2725) is contacted on the side of the inner plate (2724) near the anti-detachment block (2726). The roller (2725) is rotatably connected to the anti-detachment block (2726).

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