Guniting device

Abstract

The utility model relates to mining equipment discloses a kind of guniting device, including the guniting mechanism that can carry out guniting operation, the guniting mechanism is rotatably installed on bearing plate (3) by lifting mechanism (2), the guniting mechanism is rotatably connected with the lifting mechanism (2) by adjusting mechanism (4), the guniting mechanism is connected with slurry supply mechanism by connecting pipe (11), the slurry supply mechanism provides slurry to the guniting mechanism, wherein, the lifting mechanism (2) can drive the guniting mechanism reciprocating movement along the direction perpendicular to ground, the adjusting mechanism (4) can drive the guniting mechanism reciprocating movement along slurry conveying direction.This guniting device simple structure, can flexibly adjust working condition according to the environment, can carry out guniting operation to narrow area, saves manpower and material resources, improves guniting efficiency.

Description

Technical Field

[0001] This utility model relates to mining equipment, specifically to a shotcrete device. Background Technology

[0002] As shallow coal resources in my country are gradually depleted, deeper mining has become an inevitable choice for the industry. However, in the process of arranging mining face roadways in deep, easily spontaneously combustible coal seams, the stress concentration phenomenon in the surrounding rock is intensified, promoting the development of coal wall fissures. This allows air to penetrate into the coal seam, causing oxidation and increasing the risk of spontaneous combustion. To ensure safe coal seam mining and protect miners' occupational health, my country's "Coal Mine Safety Regulations" (2025 edition) clearly stipulates that when arranging roadways in easily spontaneously combustible coal seams, shotcrete must be used to seal the coal wall to reduce the risk of spontaneous combustion. Furthermore, it requires that shotcrete be applied using a damp or wet spraying process to reduce dust concentration in the roadway. Therefore, damp or wet shotcrete technology plays a crucial role in preventing spontaneous combustion of coal in roadways and protecting miners' occupational health.

[0003] Currently, dry or wet spraying is commonly used in underground coal mine roadways. This method suffers from problems such as high dust concentration, large rebound material volume, low compressive strength, and easy detachment, making it difficult to meet the effective support and fire prevention requirements for easily spontaneously combustible and naturally occurring coal seams. Furthermore, the operation primarily relies on traditional fixed equipment combined with manual operation, resulting in limited spray coverage. Angle and height adjustments depend on manual pushing or the erection of supports, making it difficult to meet the spraying needs of deep roadways with varying elevations and narrow, irregularly shaped areas. This often leads to problems such as difficult spraying, missed areas, and low construction efficiency, affecting support effectiveness and progress. In addition, the control systems used in traditional equipment result in lag in grout pressure and flow regulation, large rebound volume, and poor spray uniformity, wasting materials and weakening support strength.

[0004] Therefore, a new type of shotcrete device needs to be designed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a shotcrete device with a simple structure, which can flexibly adjust its working state according to the environment, and can perform shotcrete operations in narrow areas, saving manpower and material resources and improving shotcrete efficiency.

[0006] To address the aforementioned technical problems, this utility model provides a shotcrete device, including a shotcrete mechanism capable of performing shotcrete operations. The shotcrete mechanism is rotatably mounted on a support plate via a lifting mechanism. The shotcrete mechanism is rotatably connected to the lifting mechanism via an adjusting mechanism. The shotcrete mechanism is connected to a slurry supply mechanism via a connecting pipe. The slurry supply mechanism supplies slurry to the shotcrete mechanism. The lifting mechanism can drive the shotcrete mechanism to reciprocate in a direction perpendicular to the ground, and the adjusting mechanism can drive the shotcrete mechanism to reciprocate in a slurry conveying direction.

[0007] Furthermore, the lifting mechanism is rotatably mounted on the support plate via a first connecting member, and the adjusting mechanism is rotatably connected to the lifting mechanism via a second connecting member.

[0008] Furthermore, the first connecting component is a turntable bearing, and the second connecting component is a universal coupling.

[0009] Furthermore, the shotcrete mechanism includes a nozzle and a shotcrete pipe. The nozzle is connected to a connecting pipe through the shotcrete pipe. The nozzle is fixedly connected to the end of the adjusting mechanism away from the lifting mechanism through a first connecting bracket. The shotcrete pipe is connected to the adjusting mechanism through a connecting assembly.

[0010] Furthermore, the connecting assembly includes a second connecting bracket and a connecting sleeve, the connecting sleeve being slidably fitted onto the shotcrete pipe, and the connecting sleeve being fixedly connected to the adjusting mechanism via the second connecting bracket.

[0011] Furthermore, it also includes a movable component comprising a plurality of rollers rotatably mounted below the support plate.

[0012] Furthermore, the slurry supply mechanism includes a material tank and a pneumatic shotcrete machine. The material tank is installed above the pneumatic shotcrete machine, and the shotcrete mechanism is connected to the pneumatic shotcrete machine via a connecting pipe.

[0013] Furthermore, the lifting mechanism is also equipped with a support structure, which is fitted onto the outside of the lifting mechanism and is fixedly installed on the support plate.

[0014] Furthermore, the lifting mechanism and the adjusting mechanism are telescopic cylinders.

[0015] Furthermore, the telescopic cylinder is equipped with an air source mechanism, which is connected to the lifting mechanism and the adjusting mechanism respectively via air pipes.

[0016] The beneficial effects of this utility model through the above technical solution are as follows: This application provides a spraying device that increases the flexibility of the entire device by setting up a lifting mechanism and an adjustment mechanism. This allows the spraying mechanism to be adjusted in terms of lifting, extending, etc., under the action of the lifting and adjustment mechanisms. This enables the device to flexibly adjust its working state according to the usage environment, allowing for rapid spraying in complex environments while ensuring uniform spraying. In addition, by adjusting the working state of the spraying mechanism through the lifting and adjustment mechanisms, this utility model can reduce the consumption of manpower and material resources, save labor costs, and improve spraying efficiency.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural schematic diagram of a specific embodiment of the shotcrete device of this utility model; Figure 2 This is a structural schematic diagram of a specific embodiment of the shotcrete device of this utility model.

[0019] Explanation of reference numerals in the attached figures Detailed Implementation

[0020] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this utility model, and the protection scope of this utility model is not limited to the specific embodiments described below.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "equipped with," "installed," and "connection" should be interpreted broadly. For example, a connection can be a direct connection or an indirect connection through an intermediate medium; it can be a fixed connection, a detachable connection, or an integral connection; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features.

[0023] In this utility model, unless otherwise stated, directional terms such as "perpendicular to the ground" are defined with the ground as the reference. Additionally, "slurry conveying direction" is defined with respect to the slurry conveying direction, that is, from the slurry input end to the slurry output end. Furthermore, "axis of the lifting mechanism" refers to an axis perpendicular to the ground. Specifically, in the accompanying drawings provided in this utility model, the orientations or positional relationships used are based on the orientations or positional relationships shown in the drawings. These are used only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The directional terms in this utility model should be understood in conjunction with the actual installation state.

[0024] See Figure 1 This disclosure provides a shotcrete device, including a shotcrete mechanism. The shotcrete mechanism is rotatably mounted on a support plate 3 via a lifting mechanism 2. The shotcrete mechanism is rotatably connected to the lifting mechanism 2 via an adjusting mechanism 4, and is connected to a slurry supply mechanism via a connecting pipe 11. The slurry supply mechanism supplies slurry to the shotcrete mechanism. The lifting mechanism 2 can adjust the shotcrete height, and the adjusting mechanism 4 can adjust the spraying range. Since the lifting mechanism 2 and the adjusting mechanism 4 are rotatably mounted on the support plate 3, the shotcrete mechanism can spray slurry onto the surrounding environment in cooperation with the lifting mechanism 2 and the adjusting mechanism 4 during shotcrete operations. The support plate 3 provides a stable mounting foundation for the shotcrete mechanism, the adjusting mechanism 4, and the lifting mechanism 2, ensuring stable installation of each mechanism and a stable operating environment, thus guaranteeing the structural stability of the entire device.

[0025] The shotcrete device provided by this utility model has a simple structure and extremely high flexibility. It can overcome the need for manual climbing to high places or other narrow areas to carry out shotcrete work in conventional shotcrete operations. The shotcrete mechanism provided by this utility model can increase the shotcrete coverage area and expand the spray coverage range by setting the adjustment mechanism 4. The lifting mechanism 2 can replace manual lifting, eliminating the need for manual pushing or setting up of supports, saving manpower and material resources while ensuring the personal safety of operators. In addition, it can also adapt to the spraying needs of uneven, narrow and irregular areas in deep tunnels, improving spraying efficiency and solving the problems of difficulty in spraying and missed spraying caused by manual shotcrete.

[0026] Further, see Figure 1 and Figure 2In some specific embodiments of this utility model, the lifting mechanism 2 is rotatably mounted on the bearing plate 3 via the first connecting member 6, and the adjusting mechanism 4 is rotatably connected to the lifting mechanism 2 via the second connecting member 7. Preferably, the first connecting member 6 can be a turntable bearing, and the second connecting member 7 can be a universal coupling.

[0027] It should be noted that, in order to increase the coverage area of ​​the shotcrete and ensure its uniformity, a rotating connection is often used when installing the lifting mechanism 2 and the adjusting mechanism 4. The turntable bearing is a special type of large bearing capable of simultaneously withstanding large axial loads, radial loads, and overturning moments. The shotcrete mechanism is used for sealing and preventing seepage on the roadway surface; therefore, the lifting mechanism 2, the adjusting mechanism 4, and the shotcrete mechanism itself are all relatively heavy. Furthermore, during shotcrete operations, the required spraying force and the weight of the shotcrete itself necessitate extremely high stability for the entire shotcrete system to complete the work. Therefore, the installation stability of the lifting mechanism 2 is required to be extremely high. The turntable bearing can bear the pressure of the lifting mechanism 2 and other mechanisms, and can also serve as a connecting part to provide the lifting mechanism 2 with the ability to rotate around its own axis. Using the turntable bearing as the first connecting part 6 can enhance the structural stability of the entire device, and can also meet the requirement that the lifting mechanism 2 can rotate around its own axis. It can realize the 360-degree rotation of the entire spraying device around the axis of the turntable bearing. In this way, after one surface is sprayed, it can quickly rotate to spray the next surface, thus improving the spraying efficiency.

[0028] Furthermore, a universal joint coupling is used as the second connecting component 7. The universal joint coupling can be used to connect two components whose axes are not on the same straight line. Since the lifting mechanism 2 and the adjusting mechanism 4 are located on different planes, and the lifting mechanism 2 is mainly used to adjust the height, while the adjusting mechanism 4 is mainly used to adjust the coverage area, the use of the universal joint coupling as the second connecting component 7 can not only ensure a good connection between the lifting mechanism 2 and the adjusting mechanism 4, but also ensure that the two will not interfere with each other. In addition, the universal joint coupling has a large-angle transmission effect. Therefore, when in use, the shotcrete mechanism can be adjusted to any angle or position by the adjusting mechanism 4, so as to carry out shotcrete operations in areas in the roadway that are difficult to carry out manually or in areas with more complex environments. When shotcrete operations are required at a high position, the shotcrete mechanism can be raised to a suitable area by the lifting mechanism 2 first, and then the universal joint coupling can be used to drive the adjusting mechanism 4 to rotate, so as to realize the shotcrete mechanism's upward and downward shotcrete angle operations. Furthermore, this application provides a mechanism and transmission components for adjusting the spraying direction and angle of the shotcrete mechanism, which ensures stability during the movement process and avoids the uneven spraying that occurs when spraying manually in traditional shotcrete processes.

[0029] Further, see Figure 1 As a specific embodiment of this utility model, the shotcrete mechanism provided by this utility model includes a nozzle 12 and a shotcrete pipe 13. Specifically, the nozzle 12 is connected to a connecting pipe 11 through the shotcrete pipe 13. The nozzle 12 is fixedly connected to a section of the adjusting mechanism 4 away from the lifting mechanism 2 through a first connecting bracket 41. The shotcrete pipe 13 is connected to the adjusting mechanism 4 through a connecting assembly. Furthermore, the connecting assembly includes a second connecting bracket 42 and a connecting pipe 11 sleeve. The connecting pipe 11 sleeve is slidably fitted onto the shotcrete pipe 13, and the connecting pipe 11 sleeve is fixedly connected to the adjusting mechanism 4 through the second connecting bracket 42.

[0030] It should be noted that the spraying device provided in this application adjusts the spraying coverage of the entire spraying mechanism through the adjusting mechanism 4. Therefore, when the adjusting mechanism 4 drives the spraying mechanism to extend or retract along the spraying conveying direction, the length of the spraying pipe 13 will also change accordingly. In order to ensure the stable operation of the spraying work, the nozzle 12 is fixedly connected to the end of the adjusting mechanism 4. This can prevent vibration caused by excessive spraying force carried by the nozzle 12, which could lead to the nozzle 12 disengaging from the adjusting mechanism 4. Since the length of the spraying pipe 13 will change, the connecting assembly includes a head connecting sleeve 43. The connecting sleeve 43 is sleeved on the spraying pipe 13 and slidably connected to the spraying pipe 13. In this way, when the nozzle 12 drives the spraying pipe 13 to move, the spraying pipe 13 can slide in the connecting sleeve 43, and the second connecting bracket 42 can provide support for the connecting pipe 11. Thus, the spraying pipe 13 will not droop arbitrarily and affect the normal flow of the internal slurry.

[0031] To extend the service life of the nozzle 12 and the spray pipe 13, wear-resistant treatments are applied to the interior of both, specifically, surface strengthening treatments such as diamond-like carbon film or titanium nitride / titanium carbonitride coatings. Furthermore, to allow the nozzle 12 to enter confined areas for spraying operations, its outer diameter can be set to gradually decrease from the slurry input to the output. This ensures that slurry transport is not affected while allowing the nozzle 12 to move freely in confined areas. Additionally, to control the amount of slurry sprayed from the nozzle 12, such as… Figure 1 As shown, a control valve 14 and a flow meter are also installed on the nozzle 12. The flow meter has a remote transmission function and can transmit the flow rate of the slurry sprayed from the nozzle 12 to the staff in real time. The staff can control the flow rate of the slurry sprayed from the nozzle 12 through the control valve 14 according to the slurry spraying effect on site and the specific construction environment.

[0032] Furthermore, as a specific embodiment of this utility model, the shotcrete device provided by this utility model also includes a moving component, which includes rollers 31 disposed below the support plate 3, such as... Figure 1 As shown, the roller 31 can be rotatably mounted on the side of the support plate 3 or below the support plate 3 via a rotating shaft. The movable component facilitates the movement of the shotcrete device, increasing its flexibility.

[0033] See Figure 1As a specific embodiment of this utility model, the mechanism for providing slurry to the shotcrete mechanism is a slurry supply mechanism, wherein the slurry supply mechanism includes a material tank 51 and a pneumatic shotcrete machine 52. The material tank 51 is installed above the pneumatic shotcrete machine 52, and the shotcrete mechanism is connected to the pneumatic shotcrete machine 52 through a connecting pipe 11.

[0034] It should be noted that, as a specific embodiment of this utility model, the number of material buckets 51 can be one, two, or more, specifically selected according to the specific range of the shotcrete process. Each material bucket 51 is equipped with a stirring device, and a valve switch is also provided on each material bucket 51. The stirring device and the valve switch are controlled by an electric motor to stir the slurry raw materials inside the material bucket 51 and transport them to the pneumatic shotcrete machine 52. The pneumatic shotcrete machine 52 uses compressed air as power to transport the pre-mixed wet concrete in the material bucket 51 to the shotcrete mechanism through the connecting pipe 11, and uses the power provided by the compressed air to spray the slurry onto the sprayed surface at high speed. An air inlet is provided on the pneumatic shotcrete machine 52. The wind-powered shotcrete machine has a simple structure, extremely high reliability, and a long conveying distance. When in use, the shotcrete device can be sent into the tunnel where the shotcrete process is required, while the material bucket 51 and the wind-powered shotcrete machine can be set up in other areas. In this way, the workers do not need to be in close contact with the shotcrete area to process the slurry, which greatly improves the safety of the workers.

[0035] In order to more intuitively understand the slurry supply method in this utility model, the material bucket 51 and the wind-powered shotcrete machine can be installed on the support plate 3 by a bracket. However, in actual use, the material bucket 51 and the wind-powered shotcrete machine can be set away from the shotcrete construction area according to the actual use environment to ensure the safety of construction personnel.

[0036] Furthermore, such as Figure 1 As shown, in order to enhance the structural stability of the shotcrete device, since the lifting mechanism 2 can lift the shotcrete mechanism through the adjustment mechanism 4, and the top of the tunnel is relatively high, the shotcrete mechanism may shake during the shotcrete operation after the lifting mechanism 2 lifts it. Therefore, this utility model also provides a support structure 21. The support structure 21 includes a support frame fitted around the lifting mechanism 2, and a support foot that fixes the support frame on the top of the bearing plate 3. The support structure 21 formed by the combination of the support frame and the support foot can provide support for the lifting mechanism 2, ensuring the installation stability and operation stability of the lifting mechanism 2.

[0037] Due to the complex internal environment of tunnels, hydraulic or electric lifting platforms are costly, and hydraulic systems pose a risk of leakage and are complex to maintain; electric drive systems also pose safety hazards in explosion-proof environments such as coal mines. This invention uses a telescopic cylinder as the lifting mechanism 2 and the adjusting mechanism 4, and uses compressed air as the power source. The telescopic cylinder is powered by a source mechanism. Specifically, the air source mechanism 8 is connected to the regulating mechanism 4 and the lifting mechanism 2 via air pipes 81. The air source mechanism 8 includes an air tank for storing air and an air compressor for compressing air. The air tank is connected to the air pipes 81 via the air compressor. A filter, a pressure regulating valve, and an oil mist lubricator can also be installed between the air compressor and the air pipes 81. The filter ensures the quality of the air passing through, preventing impurities in the air from affecting the operation of the telescopic mechanism or the lifting mechanism 2. The pressure regulating valve adjusts the pressure to control the lifting speed and height of the lifting mechanism 2 and the telescopic speed and length of the regulating mechanism 4, ensuring the smooth operation of the lifting mechanism 2 and the regulating mechanism 4. The oil mist lubricator atomizes special lubricating oil into tiny droplets, which are mixed with the compressed air and enter the cylinder with the airflow to continuously lubricate the telescopic cylinder, reducing friction and wear between the piston seal and the cylinder barrel, and extending the life of the telescopic cylinder. The telescopic cylinder reciprocates linearly under air pressure, enabling the regulating mechanism 4 and the lifting mechanism 2 to drive the spraying mechanism. Using telescopic cylinders as the lifting mechanism 2 and the adjusting mechanism 4, and employing an air source as the power source, ensures a safer construction environment and a safer spraying device. Furthermore, a start-up control system is used to adjust the raising and lowering of the nozzle and the extension length of the nozzle, providing more precise control. When used in conjunction with a pneumatic spraying machine, it not only avoids the problem of lag in spraying pressure and flow rate adjustment but also ensures more uniform spraying, prevents material waste, and enhances support strength.

[0038] It should be noted that using telescopic cylinders as lifting mechanism 2 and adjustment mechanism 4 can not only ensure the personal safety of workers and the safety of the construction environment, but also drive the shotcrete mechanism to perform shotcrete operations in some narrow areas and other areas that are difficult to perform shotcrete operations. This eliminates the need for operators to build scaffolding on the construction site for high-altitude shotcrete operations, saving manpower and resources and ensuring personnel safety.

[0039] It should be noted that, in order to increase construction safety, the lifting mechanism 2, the adjusting mechanism 4, the first connecting part 6, and the second connecting part 7 can also be controlled by a remote control system. In this way, when carrying out shotcreting operations, the workers only need to move the shotcreting device to the construction area, and then place the slurry supply mechanism away from the construction area. The lifting mechanism 2 and the adjusting mechanism 4 are controlled by the remote control system to lift, rotate, and extend, and then the slurry is delivered by the wind-powered shotcreting machine to complete the shotcreting operation.

[0040] See Figures 1 to 2 This utility model provides a shotcrete device. When facing a simple construction environment, the shotcrete material is first poured into the material bucket 51 and stirred using the mixer inside the material bucket 51. After stirring, it is connected to the pneumatic shotcrete machine, the pneumatic shotcrete machine 52 is turned on, and the shotcrete is supplied to the shotcrete mechanism through the connecting pipe 11 for spraying. The thickness of the material in the sprayed area is continuously adjusted by the control valve 14 and the flow meter.

[0041] When performing shotcreting operations in high-altitude or confined areas, first set up the grout supply mechanism away from these areas, and then push the support plate 3 equipped with the moving component to the area where shotcreting is required. The air source mechanism 8 is activated to control the telescopic cylinder, which serves as the lifting mechanism 2, so as to raise the shotcrete mechanism to the required shotcrete height. The nozzle 12 is extended by the adjustment mechanism 4 to reach the designated shotcrete position. The wind-powered shotcrete machine is then activated to deliver slurry for shotcreting. During this process, the workers can stand on the support plate 3 and rotate the lifting mechanism 2 or the adjustment mechanism 4 to carry out shotcrete operations on the surrounding area.

[0042] This invention features a simple structure and easy operation. Compared to the cumbersome process of traditional shotcreting operations, which require scaffolding, multiple personnel, and frequent equipment movement, this device significantly reduces the labor intensity of construction workers, shortens operation time, and improves shotcreting efficiency per unit time. Its high operability makes it suitable for widespread application in efficient shotcreting operations in various confined spaces such as alleyways and tunnels.

[0043] In the description of this utility model, the reference to terms such as "one embodiment," "some embodiments," and "a specific implementation" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0045] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0046] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A shotcrete device, comprising a shotcrete mechanism capable of performing shotcrete operations, characterized in that, The shotcrete mechanism is rotatably mounted on the support plate (3) via the lifting mechanism (2). The shotcrete mechanism is rotatably connected to the lifting mechanism (2) via the adjusting mechanism (4). The shotcrete mechanism is connected to the slurry supply mechanism via the connecting pipe (11). The slurry supply mechanism supplies slurry to the shotcrete mechanism. The lifting mechanism (2) can drive the shotcrete mechanism to reciprocate in a direction perpendicular to the ground. The adjusting mechanism (4) can drive the shotcrete mechanism to reciprocate in the slurry conveying direction.

2. The shotcrete device according to claim 1, characterized in that, The lifting mechanism (2) is rotatably mounted on the bearing plate (3) via the first connecting member (6), and the adjusting mechanism (4) is rotatably connected to the lifting mechanism (2) via the second connecting member (7).

3. The shotcrete device according to claim 2, characterized in that, The first connecting member (6) is a turntable bearing, and the second connecting member (7) is a universal coupling.

4. The shotcrete device according to claim 1, characterized in that, The shotcrete mechanism includes a nozzle (12) and a shotcrete pipe (13). The nozzle (12) is connected to the connecting pipe (11) through the shotcrete pipe (13). The nozzle (12) is fixedly connected to the end of the adjusting mechanism (4) away from the lifting mechanism (2) through the first connecting bracket (41). The shotcrete pipe (13) is connected to the adjusting mechanism (4) through the connecting assembly.

5. The shotcrete device according to claim 4, characterized in that, The connecting assembly includes a second connecting bracket (42) and a connecting sleeve (43). The connecting sleeve (43) is slidably fitted on the shotcrete pipe (13). The connecting sleeve (43) is fixedly connected to the adjusting mechanism (4) through the second connecting bracket (42).

6. The shotcrete device according to claim 1, characterized in that, It also includes a moving component, which includes a plurality of rollers (31) rotatably mounted below the support plate (3).

7. The shotcrete device according to claim 1, characterized in that, The slurry supply mechanism includes a hopper (51) and a pneumatic shotcrete machine (52). The hopper (51) is installed above the pneumatic shotcrete machine (52). The shotcrete mechanism is connected to the pneumatic shotcrete machine (52) through a connecting pipe (11).

8. The shotcrete apparatus according to any one of claims 1 to 7, characterized in that, The lifting mechanism (2) is also equipped with a support structure (21), which is fitted outside the lifting mechanism (2) and is fixedly installed on the bearing plate (3).

9. The shotcrete device according to claim 8, characterized in that, The lifting mechanism (2) and the adjusting mechanism (4) are telescopic cylinders.

10. The shotcrete device according to claim 9, characterized in that, The telescopic cylinder is equipped with an air source mechanism (8), which is connected to the lifting mechanism (2) and the adjusting mechanism (4) respectively via an air pipe (81).

Images