Detachable arc-shaped tunnel wall surface spraying device

Abstract

The utility model relates to a detachable arc-shaped tunnel wall surface spraying device, and belongs to the technical field of spraying mechanisms. Comprising a rack, a walking mechanism, a swing arm power mechanism, a telescopic swing arm, a spray gun support, a spraying mechanism, a console and a power supply and distribution mechanism. Wherein the walking mechanism is installed at the bottom of the rack, the spray gun support is movably installed at the top of the telescopic swing arm, a spray gun on the spray gun support is connected with the spraying mechanism through a pipeline, and the swing arm power mechanism drives the telescopic swing arm to swing in a reciprocating mode with a connecting shaft as the axis and drives the spray gun to do arc-shaped motion to conduct reciprocating spraying on the arc-shaped wall face of a tunnel. According to the device, slurry can be uniformly sprayed on the arc-shaped inner wall of a tunnel, reciprocating spraying of an arc-shaped surface layer can be achieved, the device can adapt to continuous spraying operation of a large space and an arc-shaped surface, the spraying effect is good, the efficiency is high, meanwhile, the whole device can walk on the arc-shaped surface, and the dust filtering function is achieved.

Description

Technical Field

[0001] This utility model relates to a detachable arc-shaped tunnel wall spraying device, belonging to the technical field of spraying mechanism. Background Technology

[0002] The construction of curved tunnel walls requires a high level of environmental control, demanding a smooth surface and excellent sealing performance. Currently, large-area coating application in tunnels is primarily done manually. Existing liquid coating spraying systems have the following main shortcomings:

[0003] 1. The inability to flexibly adjust the spraying distance and spraying angle makes it difficult to achieve uniform and precise spraying when facing areas of different shapes and sizes, such as curved areas, resulting in poor coating quality.

[0004] 2. It lacks the ability to move on curved surfaces, and when it is necessary to spray large areas or multiple scattered areas to be sprayed, the operation is extremely inconvenient and inefficient.

[0005] 3. The spraying process generates a large amount of dust and exhaust gas, which not only affects the air quality of the working environment and endangers the health of operators, but may also have a negative impact on the spraying effect. The existing spraying facilities are not well-designed in terms of dust removal and ventilation, and the equipment lacks effective dust prevention measures. The particulate matter generated during the spraying process can easily contaminate the finished surface and the surface to be coated, causing defects such as impurities and bubbles in the coating, which further reduces the quality and reliability of the product.

[0006] Therefore, there is an urgent need to design a spraying device that can solve the above-mentioned technical problems. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of the existing technology by proposing a detachable arc-shaped tunnel wall spraying device. This device can uniformly spray slurry onto the arc-shaped inner wall of the tunnel, achieving reciprocating and uniform spraying of the arc-shaped surface. Compared to manual spraying, this tunnel spraying device can adapt to continuous spraying operations in large spaces and arc-shaped surfaces, with good spraying effect and high efficiency. At the same time, the entire device can move on the arc surface and has a dust filtration function.

[0008] This utility model discloses a detachable arc-shaped tunnel wall spraying device, which is characterized by comprising: a platform, a traveling mechanism, a swing arm power mechanism, a telescopic swing arm, a spray gun bracket, a spraying mechanism, a control console, and a power supply and distribution mechanism; wherein, the traveling mechanism is installed at the bottom of the platform and can drive the entire platform to move, and the control console controls the operation of the traveling mechanism, the swing arm power mechanism, and the spraying mechanism; the spray gun bracket is movably installed on the top of the telescopic swing arm, and the spray gun installed on the spray gun bracket is connected to the spraying mechanism through a pipeline; the swing arm power mechanism drives the telescopic swing arm to swing back and forth around the connecting shaft as the axis, thereby driving the spray gun to make arc-shaped movements and reciprocate spraying the arc-shaped tunnel wall;

[0009] Preferably, the detachable arc-shaped tunnel wall spraying device further includes a shielding mechanism, which includes a detachable vertical shield and a horizontal shield, both of which are installed on one side of the platform at an upper position.

[0010] Preferably, the detachable arc-shaped tunnel wall spraying device further includes a ventilation and dust collection mechanism, which includes a fan, pipes, multiple air inlets, air outlets, and a dust collection device. The fan and dust collection device are installed on the pipes, which consist of multiple horizontal and vertical pipes. The vertical pipes run through the entire height of the platform, and the number of horizontal pipes matches the number of layers of the platform. Multiple air inlets are arranged along the length of the horizontal pipes, and the air inlets can be opened and closed. The air inlets are close to the spraying work area, and the air outlets are arranged away from the spraying work area. The dust collection device is equipped with a detachable plate filter screen, and there is a pull-out tray below the filter screen for easy cleaning of the collected dust in a timely manner.

[0011] Preferably, the swing arm power mechanism includes a motor, a reducer, and a reducer connecting shaft. The reducer connecting shaft is connected and fixed to one end of the spraying telescopic swing arm. The telescopic swing arm adopts a nested design of one or more sections, and its length is adjustable. Reciprocating swinging spraying is achieved by setting the motor to rotate forward and backward.

[0012] Preferably, the spray gun bracket is provided with multiple slots for installing the spray gun. The slots have a limiting mechanism on the side, which can limit and lock the spray gun after installation to prevent it from falling. When the spray gun needs to be removed, the limiting mechanism is manually opened and the spray gun is pushed out along the slot opening. The limiting mechanism includes a locking tongue, a spring, a handle, a first rotating shaft, a second rotating shaft, and a cover. The spray gun bracket and the telescopic swing arm are connected by a connecting plate 503 and bolts. The connecting plate can rotate to change the orientation of the spray gun.

[0013] Preferably, the walking mechanism includes a motor, a reducer, a brake, and multiple walking wheels with braking function. The walking mechanism is connected to the frame through a connecting rod and a diagonal brace. The top of the connecting rod is provided with a rotatable shaft. The bottom angle of the walking mechanism can be adjusted by adjusting the connection position of the diagonal brace and the frame. Both sides of the walking wheels are provided with inclined surfaces to facilitate travel on the arc surface.

[0014] Preferably, the platform is a steel structure frame assembled from steel components, and the whole is a multi-layer design. The platform includes multiple steel structure components, which are fixed by bolts. Multiple platforms are installed on the steel structure components, and stairs are set between the platforms for passage. Guardrails are set on the platform edges and stair handrails. Platform plates are arranged on the platform surface, and a foldable platform is set on one side of each platform.

[0015] Preferably, the detachable arc-shaped tunnel wall spraying device further includes a movable lifting mechanism, which includes a base, a winch, a hook, and a controller. The base adopts a metal frame structure, and the bottom of the base is provided with connecting bolt holes, which are fixed to the platform by bolts.

[0016] Compared with existing technologies, the advantages of this utility model, a detachable arc-shaped tunnel wall spraying device, are as follows:

[0017] (1) The swing arm power mechanism, telescopic swing arm, spray gun bracket and spraying mechanism are used together. Since the telescopic swing arm can adjust the length, the distance between the spray gun and the surface to be sprayed can be easily changed to adapt to different spraying requirements. By changing the installation angle of the swing arm power mechanism and / or the spray gun bracket, the spraying angle can be flexibly adjusted, so as to achieve precise spraying of surfaces of various shapes and positions. The spray gun can evenly spray the slurry in the spraying mechanism onto the inner wall of the tunnel, and can achieve reciprocating spraying of arc-shaped surfaces. Compared with manual spraying, this utility model can adapt to continuous spraying operations in large spaces and arc-shaped surfaces, and can improve work efficiency.

[0018] (2) The walking mechanism enables the entire device to move on the arc surface, and it is extremely convenient to operate when it is necessary to spray a large area or multiple dispersed surfaces to be sprayed, thereby further improving efficiency.

[0019] (3) It is equipped with a ventilation and dust collection mechanism. The dust in the spraying process can be cleaned and collected through the ventilation and dust collection mechanism, which improves the air quality of the working environment, reduces the harm of dust to operators, and prevents particulate matter in the spraying process from causing pollution to the finished surface and the surface to be coated, resulting in defects such as impurities and bubbles in the coating, thereby further improving the quality and reliability of the product.

[0020] (4) The detachable frame of this utility model can adapt to construction work surfaces of various shapes and sizes, and has strong applicability and flexibility. This quick-installation frame saves time and labor costs and improves work efficiency. The frame is designed in layers, and personnel can carry out related work between different layers. The frame can be assembled in different sizes in the vertical and horizontal directions, and can adapt to construction work surfaces of various shapes and sizes, and has strong applicability and flexibility.

[0021] (5) A shielding mechanism is installed and fixed on the side and top of the platform. The shielding mechanism can be repeatedly disassembled and replaced. The shielding mechanism is designed as a detachable structure, which facilitates the maintenance and cleaning of the equipment. The shielding mechanism protects the working environment and the surrounding construction surface, effectively preventing external dust from entering the platform, protecting the key components of the equipment, and extending the service life of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a detachable arc-shaped tunnel wall spraying device according to the present invention.

[0023] Figure 2 This is a side view of a detachable arc-shaped tunnel wall spraying device according to the present invention.

[0024] Figure 3 This is a schematic diagram of the walking mechanism.

[0025] Figure 4 This is a schematic diagram of the swing arm power mechanism;

[0026] Figure 5 This is a schematic diagram of the spray gun bracket.

[0027] Figure 6 This is a schematic diagram of the limiting mechanism;

[0028] Figure 7 This is a disassembly diagram of the limit mechanism;

[0029] Figure 8 This is a schematic diagram of the ventilation and dust collection mechanism. Detailed Implementation

[0030] To better understand and implement this invention, specific embodiments are provided below to illustrate a detachable arc-shaped tunnel wall spraying device.

[0031] This embodiment provides a detachable arc-shaped tunnel wall spraying device, see attached drawing. Figure 1-2 The system includes: a prefabricated platform 100, a traveling mechanism 200, a swing arm power mechanism 300, a telescopic swing arm 400, a spray gun bracket 500, a spraying mechanism 600, a masking mechanism 7, a ventilation and dust collection mechanism 800, a control console 9, a movable lifting mechanism 10, and a power supply and distribution mechanism 11. In this embodiment, the control console 9 can control the start and stop of each piece of equipment and monitor the equipment's operation in real time. The power supply and distribution mechanism 11 consists of multiple distribution boxes and connecting lines; each platform level is equipped with a distribution box to meet construction needs.

[0032] The prefabricated platform 100 is a steel structure frame assembled from steel components. It features a multi-layered design, including main steel structure components 101, which are bolted together. The platform is equipped with stairs 102 for vertical access, and guardrails 103, made of fiberglass, are installed along the platform edges and stair handrails. These guardrails are connected to the main structure via bolts or clips. Platform panels are laid on the platform surface, and material handling channels are located at the ends of each layer, with foldable platforms 105 positioned within these channels. The prefabricated platform 100 can be assembled in various vertical and horizontal directions to accommodate different shapes and sizes of construction surfaces, offering strong applicability and flexibility. After the components are transported to the construction site, a movable lifting mechanism 10 hoists each component into position for assembly. After one layer is assembled, the movable lifting mechanism 10 is installed on the second-layer platform, and the remaining materials are hoisted into position sequentially to assemble the components of the second layer. This process is repeated until the required height of the platform is achieved. This rapid installation feature saves time and labor costs, improving work efficiency. The platform features a tiered design, allowing personnel to perform tasks on different levels. Safety belt attachment points are located at the top of the platform.

[0033] The walking mechanism in this embodiment is shown in the appendix. Figure 3 The traveling mechanism 200, comprising a motor, reducer, and brake, forms a single unit and is connected to the platform 100 via a connecting rod 201. The connecting rod has a rotatable shaft 202 at its end and is fixed to the platform via a diagonal brace 203. The bottom angle of the traveling mechanism is adjusted by changing the connection position of the diagonal brace to the platform, thus adapting the traveling mechanism to different ground angles. Suitable traveling wheels 204 are installed; the wheels must have good load-bearing capacity and flexibility. Solid rubber wheels or metal wheels with shock absorption can be selected, and a braking device is provided for easy positioning during operation. Both sides of the traveling wheels 204 have inclined surfaces 204-1 to facilitate travel on curved surfaces.

[0034] The swing arm power mechanism 300 in this embodiment is shown in the appendix. Figure 4 The swing arm power mechanism 300 includes a motor 301, a reducer 302, a reducer connecting shaft 303, and is connected and fixed to the spraying telescopic swing arm 400. The telescopic swing arm 400 adopts a single or multiple nested design, and its length can be adjusted by hydraulic or wire rope pulling. By adjusting the length of the telescopic swing arm, the distance between the spray gun and the working surface can be easily changed to adapt to different spraying needs. The motor speed is adjustable, and after being connected to the reducer, the rotational power output is sent to the swing arm. By setting the motor 301 to rotate forward and reverse, reciprocating swing spraying is achieved.

[0035] In this embodiment, a spray gun bracket 500 is installed at the end of the telescopic swing arm. The spray gun bracket 500 is provided with a slot 501 for mounting the spray gun. The slot has a limit 502 on its side. (See attached figure.) Figure 5-7After installation, the spray gun is locked in place to prevent it from falling. To remove the spray gun, manually open the locking tongue 502a of the limit mechanism 502, and the spray gun will be pushed out along the slot. The limit mechanism 502 includes a locking tongue 502a, a spring 502b, a handle 502c, a first rotating shaft 502d-1, a second rotating shaft 502d-2, and a cover 502e. The first rotating shaft 502d-1 is mounted on the locking tongue 502a, and the second rotating shaft 502d-2 is mounted on the spray gun bracket 500. The handle c502 is a movable rod; rotating the handle c502 around the second rotating shaft 502d-2 simultaneously moves the locking tongue 502a, unlocking the spray gun. The spray gun bracket 500 and the telescopic arm 400 are connected by a connecting plate 503 and bolts. The connecting plate 503 can rotate to change the orientation of the spray gun, thus enabling precise spraying of workpieces of various shapes and positions.

[0036] The spraying mechanism 600 in this embodiment includes a sprayer, an air compressor, a material conveying pipeline, a compressed air pipeline, and a storage tank, all mounted on the first floor of a frame. The storage device is selected based on the actual material; a cylindrical material tank is commonly used. When the sprayer 600 is working, paint and high-pressure gas enter the sprayer through the pipeline, are transferred, and then fed into the spray gun. After a spraying command is input, the paint is sprayed out from the spray gun. Pressing the stop spraying button stops the spray gun from operating.

[0037] In this embodiment, a shielding mechanism 7 is installed and fixed on the side and top of the test bench 100. The shielding mechanism 7 includes a detachable vertical shield 7-1 and a horizontal shield 7-2, both installed on the upper side of the test bench 100. To achieve better shielding effect and in conjunction with the tunnel's arc-shaped structure, the vertical shield 7-1 is designed in a fan shape, and the horizontal shield 7-2 is designed in a rectangular shape. The shielding mechanism 7 uses a metal or polymer profile frame, with a polymer film fixed to the outside. The shielding mechanism 7 is bolted to the test bench 100. The shielding mechanism 7 can be repeatedly disassembled and replaced. The shielding mechanism 7 is designed as a detachable structure and installed on the outside of the test bench, which facilitates maintenance and cleaning of the equipment's interior and effectively prevents external dust from entering the test bench, protecting critical components and extending the equipment's service life.

[0038] The ventilation and dust collection mechanism 800 of this embodiment is shown in the appendix. Figure 8The ventilation and dust collection mechanism 800 includes a fan 801, a duct 802, multiple air inlets 803, an air outlet 804, and a dust collection device 805. The fan 801 and the dust collection device 805 are installed on the duct 802. The duct 802 consists of multiple horizontal and vertical ducts. The vertical ducts run through the entire height of the frame 100, and the number of horizontal ducts matches the number of layers of the frame 100. The multiple air inlets 803 are arranged along the length of the horizontal ducts, and the air inlets 803 can be opened and closed. The air inlets 803 are close to the spraying work area, and the air outlets 804 are arranged away from the spraying work area. The dust collection device 805 is equipped with a removable plate filter screen inside, and there is a pull-out tray below the filter screen for easy cleaning of the collected dust in a timely manner.

[0039] The movable lifting mechanism 10 in this embodiment consists of a base 10a, a winch 10b, a hook 10c, and a controller 10d. The base adopts a metal frame structure, such as welded I-beams or channel steel. The bottom of the base has bolt holes for fixing to the platform via bolts at pre-reserved connection points. The lifting load meets the requirements of the platform components and the weight of materials during construction. The core component of the lifting mechanism 10 is the winch, which consists of a motor, reducer, drum, and brake. The motor provides power, which is reduced and increased in torque by the reducer to drive the drum to rotate. A steel wire rope is wound on the drum for lifting heavy objects. The lifting mechanism must be equipped with a reliable braking device to prevent the heavy object from accidentally falling from the air. Common types include electromagnetic brakes and disc brakes, which can quickly brake the drum in emergencies such as power outages. A centralized operation controller d10 is designed, equipped with control buttons, such as buttons for controlling lifting and lowering, and knobs for controlling rotation direction and speed. Limit switches should also be installed in the lifting height direction. When the load is lifted to the set maximum height, the lifting circuit will be automatically cut off to avoid dangerous situations such as excessive winding of the wire rope or overloading of the crane arm.

[0040] Importantly, it should be noted that the constructions and arrangements of this application shown in several different exemplary embodiments are merely exemplary. It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A detachable arc-shaped tunnel wall spraying device, characterized in that... include: The system comprises a platform, a traveling mechanism, a swing arm power mechanism, a telescopic swing arm, a spray gun bracket, a spraying mechanism, a control console, and a power supply and distribution mechanism. The traveling mechanism is installed at the bottom of the platform and can drive the entire platform to move. The control console controls the operation of the traveling mechanism, the swing arm power mechanism, and the spraying mechanism. The spray gun bracket is movably installed on the top of the telescopic swing arm. The spray gun installed on the spray gun bracket is connected to the spraying mechanism through pipelines. The swing arm power mechanism drives the telescopic swing arm to swing back and forth around the connecting shaft, thereby driving the spray gun to make arc motion and reciprocate spraying the arc-shaped wall of the tunnel.

2. A detachable arc-shaped tunnel wall spraying device according to claim 1, characterized in that... The detachable arc-shaped tunnel wall spraying device also includes a shielding mechanism, which includes a detachable vertical shield and a horizontal shield, both of which are installed on one side of the platform near the top.

3. A detachable arc-shaped tunnel wall spraying device according to claim 1 or 2, characterized in that... The detachable arc-shaped tunnel wall spraying device also includes a ventilation and dust collection mechanism, which includes a fan, pipes, multiple air inlets, air outlets, and a dust collection device. The fan and dust collection device are installed on the pipes, which consist of multiple horizontal and vertical pipes. The vertical pipes run through the entire height of the platform, and the number of horizontal pipes matches the number of layers of the platform. Multiple air inlets are arranged along the length of the horizontal pipes and can be opened and closed. The air inlets are close to the spraying work area, and the air outlets are arranged away from the spraying work area. The dust collection device is equipped with a detachable plate filter screen, and there is a pull-out tray below the filter screen.

4. A detachable arc-shaped tunnel wall spraying device according to claim 1, characterized in that... The swing arm power mechanism includes a motor, a reducer, and a reducer connecting shaft. The reducer connecting shaft is fixedly connected to one end of the spraying telescopic swing arm. The telescopic swing arm adopts a nested design of one or more sections, and its length is adjustable. Reciprocating swinging spraying is achieved by setting the motor to rotate forward and backward.

5. A detachable arc-shaped tunnel wall spraying device according to claim 1 or 4, characterized in that... The spray gun bracket is provided with multiple slots for installing spray guns. The sides of the slots are equipped with a limiting mechanism to prevent the spray gun from falling after installation. When the spray gun needs to be removed, the limiting mechanism is manually opened and the spray gun is pushed out along the slot opening. The limiting mechanism includes a locking tongue, a spring, a handle, a first rotating shaft, a second rotating shaft, and a cover. The spray gun bracket and the telescopic swing arm are connected by a connecting plate and bolts. The connecting plate can rotate to change the orientation of the spray gun.

6. A detachable arc-shaped tunnel wall spraying device according to claim 1, characterized in that... The walking mechanism includes a motor, a reducer, a brake, and multiple walking wheels with braking function. The walking mechanism is connected to the frame through connecting rods and diagonal braces. The top of the connecting rod is provided with a rotatable shaft. The bottom angle of the walking mechanism can be adjusted by adjusting the connection position of the diagonal brace and the frame. Both sides of the walking wheels are provided with inclined surfaces to facilitate travel on the arc surface.

7. A detachable arc-shaped tunnel wall spraying device according to claim 1 or 6, characterized in that... The platform is a steel structure frame assembled from steel components. It has a multi-layer design and includes multiple steel structural components that are fixed together by bolts. Multiple platforms are installed on the steel structural components, and stairs are provided between the platforms for passage. Guardrails are provided on the edges of the platforms and the handrails of the stairs. Platform panels are arranged on the surface of the platforms, and a foldable platform is provided on one side of each platform.

8. A detachable arc-shaped tunnel wall spraying device according to claim 7, characterized in that... The detachable arc-shaped tunnel wall spraying device also includes a movable lifting mechanism, which includes a base, a winch, a hook, and a controller. The base adopts a metal frame structure, and the bottom of the base is provided with connecting bolt holes, which are fixed to the platform by bolts.

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