An automatic spraying device

Abstract

The present invention relates to an automatic spraying device, which comprises a vertically arranged protective housing, a spraying tool and a traveling mechanism. The protective housing is a box-like structure with an opening on one side. The top of the protective housing extends outward and protrudes from the opening end of the protective housing. At a position on the top of the protective housing and away from the opening end of the protective housing, a connecting plate extends downward, and the connecting plate faces the opening end of the protective housing. The spraying tool includes a spray head fixed inside the protective housing, and the traveling mechanism is connected to the protective housing and can drive the protective housing to move. The automatic spraying device of the present invention can effectively avoid the volatilization and leakage of paint during the spraying process, realizes safe and rapid spraying operations, and is equipped with a traveling mechanism by itself, making the operation more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction equipment, and particularly to an automatic spraying device. Background Art

[0002] Due to adverse climatic conditions, roads in northern China are often covered with snow and ice in winter. During the process of ensuring traffic safety, maintenance departments use a large amount of chemical substances such as deicing salts and snow melting agents. Chemical substances such as sodium chloride, calcium chloride, magnesium chloride and their additives as snow melting agents directly cause the most serious erosion and damage to road surfaces and bridge bodies, especially concrete anti-collision piers. The concrete structure itself has pores and is dry and water-absorbent. In particular, concrete structures with micro-cracks have stronger water-absorbing capacity. The water body dissolved with harmful substances flows through the pores and cracks under the stress of freeze-thaw cycles, and the continuous damage to concrete components is long-term and deep-seated. The chemical corrosion components in deicing salts and snow melting agents migrate and penetrate into the concrete, and jointly act with water to cause salt freezing and salt corrosion, which not only damage the concrete surface layer, but also gradually develop and expand into the interior of the concrete, resulting in large-area serious erosion. Therefore, the protection of anti-collision piers is urgent.

[0003] In order to prevent the freeze-thaw salt corrosion of the inner anti-collision pier concrete. Currently, the method of coating anti-corrosion materials on the concrete surface is usually adopted to extend the service life of the concrete. The most commonly used is to coat a permeable silane concrete bridge and road waterproof and anti-corrosion agent. In the silane system of this product, the molecular structure can penetrate into the interior of the concrete and undergo complex physical and chemical reactions with the hydration products of cement, generating new substances inside the concrete. The wetting angle between the pore wall of the cement stone and water is changed. This substance has strong hydrophobicity and forms a water-repellent treatment layer, thus preventing water erosion. It can effectively prevent the diseases caused by the corrosion, loosening, peeling and mildew of the concrete and the internal steel structure due to water seepage, sunlight, acid rain and seawater erosion, and improve the service life of the building. It can solve the corrosion and damage of concrete and steel bars caused by the large amount of salt-based snow melting agents sprayed on road and bridge in winter in northern regions; it can also prevent moisture and dust, prevent the generation of bacteria and molds on the concrete surface; improve the durability of the concrete surface layer, do not change and affect the color of the concrete, and can effectively prevent the corrosion of chloride ions, acid rain, automobile exhaust, etc. in the snow melting agent on the concrete surface, and extend the service life of bridges and various concrete buildings.

[0004] However, this material is in a liquid state, with a density lower than that of water and is extremely volatile. Currently, there are two commonly used coating methods: one is manual brushing with a roller brush. This primitive coating method has low efficiency and high labor intensity and is not suitable for large-area construction. The other is spraying construction, which has high efficiency and lower labor intensity compared to manual coating. However, the traditional spraying method has the following disadvantages: Since it is in a sprayed atomized state, approximately 30% of the material is dispersed into the atmosphere. It is very easy for the spraying workers to inhale it into the respiratory tract, irritating the nose and throat. Repeated or long-term exposure may cause serious irritation and pose a health hazard to the operating workers; The splashing liquid will dissolve the road asphalt, causing damage to the road surface; A large amount of splashing and atomization of the product into the air results in material waste. In addition, there are a large number of atomized fine particles, which are extremely easy to float with the wind, polluting the atmospheric environment and thus endangering the living quality and physical health of the surrounding residents.

[0005] Therefore, based on years of experience and practice in the relevant industry, the inventor proposes an automatic spraying device to overcome the defects of the prior art. Summary of the Invention

[0006] The object of the present invention is to provide an automatic spraying device that can effectively avoid the volatilization and leakage of the coating during the spraying process, achieve safe and rapid spraying operations, and at the same time has a self-propelled mechanism, making the operation more convenient.

[0007] The object of the present invention is achieved as follows. An automatic spraying device includes:

[0008] A vertically arranged protective housing, which is a box-like structure with an opening on one side. The top of the protective housing extends outward and protrudes beyond the opening end of the protective housing. At the top of the protective housing and at a position away from the opening end of the protective housing, a connecting plate extends downward, and the connecting plate faces the opening end of the protective housing;

[0009] A spraying tool, including a spray head fixed inside the protective housing;

[0010] And a traveling mechanism, which is connected to the protective housing and can drive the protective housing to move.

[0011] In a preferred embodiment of the present invention, the traveling mechanism includes a motor and two rotating shafts. The outer shell of the motor is fixed to the top of the protective housing, and the output shaft of the motor is arranged vertically and located above the protective housing. The output shaft of the motor is drivingly connected to the two rotating shafts through a first transmission assembly and can drive the two rotating shafts to rotate. Both rotating shafts are arranged vertically and are respectively pivotally connected to both sides of the protective housing. A traveling arm is sleeved and pivotally connected to each rotating shaft, and the length direction of the traveling arm extends horizontally. A traveling wheel is pivotally connected to the end of the traveling arm away from the rotating shaft. The rotating shaft is drivingly connected to the traveling wheel through a second transmission assembly and can drive the traveling wheel to roll. Two fixing plates are symmetrically fixed to both sides of the protective housing, and a first spring is fixed between the traveling arm and the corresponding fixing plate.

[0012] In a preferred embodiment of the present invention, the first transmission assembly includes a first belt pulley fixed to the output shaft of the motor and two second belt pulleys respectively fixed to the tops of the two rotating shafts. The first belt pulley is connected to the two second belt pulleys through a first belt.

[0013] In a preferred embodiment of the present invention, the second transmission assembly includes a third belt pulley sleeved and fixed on the rotating shaft and a fourth belt pulley coaxially fixed on the traveling wheel. The third belt pulley is connected to the fourth belt pulley through a second belt.

[0014] In a preferred embodiment of the present invention, the traveling arm includes a connecting ring, a connecting arm, and a first connecting member fixed in sequence. The connecting ring is sleeved and pivotally connected to the rotating shaft, the length direction of the connecting arm extends horizontally, the traveling wheel is pivotally connected to the first connecting member, and the fourth belt pulley is arranged above the first connecting member and fixed to the traveling wheel.

[0015] In a preferred embodiment of the present invention, the first connecting member is a first U-shaped plate. The traveling wheel is embedded in the first U-shaped plate. The traveling wheel includes a first fixed shaft and a first wheel body sleeved and fixed outside the first fixed shaft. The first fixed shaft is pivotally connected to the first U-shaped plate, the axial direction of the first fixed shaft is arranged vertically, and the upper end of the first fixed shaft extends out of the first U-shaped plate and is fixedly connected to the fourth belt pulley outside the first U-shaped plate.

[0016] In a preferred embodiment of the present invention, a first roller and an elastic component are arranged between the open end of the protective housing and the connecting plate. The first end of the elastic component is pivotally connected to the first roller, and the second end of the elastic component can slidably penetrate through the connecting plate in a direction perpendicular to the plate surface of the connecting plate.

[0017] In a preferred embodiment of the present invention, the elastic component includes a connecting shaft, a second connecting member fixed to the first end of the connecting shaft, and a second spring sleeved on the connecting shaft. A through hole is formed in the connecting plate; the second connecting member is pivotally connected to the first roller, the second end of the connecting shaft is axially slidably inserted into the through hole, and both ends of the second spring respectively abut between the second connecting member and the connecting plate.

[0018] In a preferred embodiment of the present invention, the second connecting member is a second U-shaped plate, the first roller is embedded in the second U-shaped plate, the first roller includes a second fixed shaft and a second wheel body sleeved outside the second fixed shaft through a bearing, the second fixed shaft is fixedly connected to the second U-shaped plate, and the axial direction of the second fixed shaft is arranged in the vertical direction.

[0019] In a preferred embodiment of the present invention, the through hole is a square hole, and the cross section of the connecting shaft is square.

[0020] In a preferred embodiment of the present invention, a limiting block is adjustably fixed to the second end of the connecting shaft, and the limiting block and the first roller are respectively located on both sides of the connecting plate.

[0021] In a preferred embodiment of the present invention, second rollers are pivotally connected to both sides of the open end of the protective housing, the axial direction of the second rollers is arranged in the vertical direction, and a part of the second rollers protrudes from the open end of the protective housing.

[0022] In a preferred embodiment of the present invention, installation grooves are formed on both sides of the open end of the protective housing, the second rollers are embedded in the installation grooves, the second rollers include a third fixed shaft and a third wheel body sleeved outside the third fixed shaft through a bearing, the third fixed shaft is fixedly connected to the groove wall of the installation groove, and the axial direction of the third fixed shaft is arranged in the vertical direction.

[0023] In a preferred embodiment of the present invention, a plurality of balls are provided on the lower surface of the top of the protective housing.

[0024] In a preferred embodiment of the present invention, a storage groove is provided at the bottom of the protective housing.

[0025] In a preferred embodiment of the present invention, the spraying tool further includes a feeding pipe, a paint bucket and a pressure pump. The feeding pipe is arranged outside the protective housing and is communicated with the nozzle. One end of the pressure pump is connected to the paint bucket through a pipeline, and the other end of the pressure pump is connected to the feeding pipe.

[0026] As described above, the automatic spraying device in the present invention forms a single-sided cavity structure inside the protective housing. During use, the protective housing is buckled on the anti-collision pier, and spraying is carried out inside the protective housing, which can play a better safety protection role during the spraying process, reduce the leakage of paint, and prevent it from volatilizing into the air. This not only does not affect the physical health of workers but also avoids the waste of paint and saves resources. The entire automatic spraying device replaces manual spraying, greatly improving the spraying efficiency and preventing workers from coming into contact with the paint spray. At the same time, the entire device is equipped with a walking mechanism and does not require an additional power device for driving, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following drawings are only intended to illustrate and explain the present invention and do not limit the scope of the present invention. Among them:

[0028] Figure 1 : is the structural schematic diagram of the automatic spraying device provided by the present invention Figure 1 .

[0029] Figure 2 : is the structural schematic diagram of the automatic spraying device provided by the present invention Figure 2 .

[0030] Figure 3 : is the front view schematic diagram of the automatic spraying device provided by the present invention.

[0031] Figure 4 : is the top view schematic diagram of the automatic spraying device provided by the present invention.

[0032] Figure 5 : is Figure 3 the partial enlarged view at A in

[0033] Explanation of the reference numerals in the drawings:

[0034] 1. Protective housing; 11. Top plate; 12. Bottom plate; 13. Back plate; 14. Baffle; 141. Mounting plate; 15. Connecting plate;

[0035] 2. Nozzle; 21. Feeding pipe;

[0036] 3. Walking mechanism;

[0037] 31. Motor;

[0038] 32. Rotating shaft;

[0039] 33. First transmission component; 331. First pulley; 332. Second pulley; 333. First belt;

[0040] 34. Walking arm; 341. Connecting ring; 342. Connecting arm; 343. First connecting piece;

[0041] 35. Traveling wheel;

[0042] 36. Second transmission assembly; 361. Third pulley; 362. Fourth pulley; 363. Second belt;

[0043] 4. Fixed plate;

[0044] 5. First spring;

[0045] 6. First roller;

[0046] 7. Elastic component; 71. Connecting shaft; 711. Limit block; 72. Second connecting piece; 73. Second spring;

[0047] 8. Second roller;

[0048] 9. Ball. Detailed implementation manners

[0049] For a clearer understanding of the technical features, objectives, and effects of the present invention, the detailed implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0050] As Figures 1 to 5 shown, this embodiment provides an automatic spraying device, including:

[0051] A vertically arranged protective housing 1, which is a box structure with an opening on one side. The top of the protective housing 1 extends outward and protrudes from the opening end of the protective housing 1. At the top of the protective housing 1 and away from the opening end of the protective housing 1, a connecting plate 15 extends downward. The connecting plate 15 faces the opening end of the protective housing 1;

[0052] A spraying tool, including a spray head 2 fixed inside the protective housing 1;

[0053] And a traveling mechanism 3, which is connected to the protective housing 1 and can drive the protective housing 1 to move.

[0054] Among them, generally, the protective housing 1 is formed by enclosing a top plate 11, a bottom plate 12, a back plate 13, and two baffle plates 14 on both sides of the back plate 13. The connecting plate 15 is connected to the end of the top plate 11. The protective housing 1 is preferably in the shape of a cuboid. The width of the top plate 11 in the horizontal direction is greater than the width of the baffle plate 14, so that the top plate 11 protrudes from the opening end of the protective housing 1, facilitating being buckled on the top of the anti-collision pier during use. The spray head 2 is fixed on the back plate 13, and the spray port of the spray head 2 is arranged facing the opening end of the protective housing 1 to better spray the side surface of the anti-collision pier.

[0055] The interior of the entire protective shell 1 forms a single-sided cavity structure. When in use, this surface is aligned with the crash pier to form a relatively closed space. The protective shell 1 is buckled on the crash pier so that the open end of the protective shell 1 fits with the side surface of the crash pier, and the connecting plate 15 is located on the other side surface of the crash pier. The interior of the protective shell 1 is sprayed with a spray head 2, and the protective shell 1 is driven to move by the walking mechanism 3, so that the side surface of the crash pier can be sprayed during the movement.

[0056] Therefore, the automatic spraying device in this embodiment forms a single-sided cavity structure inside the protective shell 1. When in use, the protective shell 1 is buckled on the crash barrier, and spraying is performed inside the protective shell 1. This can provide better safety protection during the spraying process, reduce the leakage of paint, and prevent it from volatilizing into the air. This will not affect the health of the workers, but also avoid the waste of paint and save resources. The entire automatic spraying device replaces manual spraying, greatly improving the spraying efficiency and avoiding contact between workers and paint spray. At the same time, the entire device has its own walking mechanism 3, and does not require an additional power device to drive it, making it more convenient to use.

[0057] It should be noted that the automatic spraying device in this embodiment can not only be used for spraying operations on crash piers, but can also be used in other occasions where it is necessary to spray such paints that are volatile and can easily cause health hazards to the environment or workers. The automatic spraying device can be buckled on the object to be sprayed, and can play a certain protective role during spraying to avoid volatilization, diffusion and splashing of the paint.

[0058] In a specific implementation, in order to facilitate the walking mechanism 3 to drive the protective housing 1 to move, as shown in FIG. Figure 1 , Figure 2 and Figure 4 As shown, the walking mechanism 3 includes a motor 31 and two rotating shafts 32. The housing of the motor 31 is fixed on the top of the protective shell 1, and the output shaft of the motor 31 is arranged in the vertical direction and is located above the protective shell 1. The output shaft of the motor 31 is connected to the two rotating shafts 32 through the first transmission assembly 33, and can drive the two rotating shafts 32 to rotate. The two rotating shafts 32 are arranged in the vertical direction and are respectively pivoted on both sides of the protective shell 1. A walking arm 34 is sleeved and pivoted on each rotating shaft 32, and the length direction of the walking arm 34 extends in the horizontal direction. A walking wheel 35 is pivoted at the end of the walking arm 34 away from the rotating shaft 32, and the rotating shaft 32 is connected to the walking wheel 35 through the second transmission assembly 36, and can drive the walking wheel 35 to roll. Two fixed plates 4 are symmetrically fixed on both sides of the protective shell 1, and a first spring 5 (the first spring 5 is a compression spring) is fixed between the walking arm 34 and the corresponding fixed plate 4.

[0059] Among them, the housing of the general motor 31 is fixed above the top plate 11 through a fixing bracket (not shown in the figure). Its output shaft is arranged downward and has a certain gap with the top plate 11, and the two do not contact. On both sides of the protective housing 1, specifically, mounting plates 141 are fixed on the outer sides of the two baffles 14 (in this embodiment, two mounting plates 141 are respectively provided on the outer sides of the two baffles 14). Through holes are formed in the mounting plates 141, and the rotating shafts 32 are inserted into the through holes in the respective mounting plates 141, and the rotating shafts 32 and the respective mounting plates 141 can be rotatably connected through bearings to facilitate the rotation of the rotating shafts 32.

[0060] The above-mentioned fixing plate 4 is generally arranged perpendicular to the baffle 14. The number of the walking arms 34 provided on each rotating shaft 32 is determined according to needs. For example, in this embodiment, two walking arms 34 are connected to each rotating shaft 32. The number of the first springs 5 is the same as the number of the walking arms 34, and a first spring 5 is respectively fixed between each walking arm 34 and the corresponding fixing plate 4. Through the elastic force of the first spring 5, each walking arm 34 will be pushed towards the direction of the anti-collision pier. During the traveling process, the walking arm 34 is always pushed and the walking wheel 35 is pressed tightly against the anti-collision pier, so that the walking wheel 35 always adheres to the side surface of the anti-collision pier during walking, ensuring that the walking wheel 35 can always be in contact with the anti-collision pier, thereby ensuring that the protective housing 1 always has the power to move forward.

[0061] Specifically, during use, after the protective housing 1 is buckled on the anti-collision pier, each walking wheel 35 adheres to the side surface of the anti-collision pier. The motor 31 drives each rotating shaft 32 to rotate through the first transmission component 33, and the rotating shaft 32 drives each walking wheel 35 to roll through the second transmission component 36. Then, driven by the motor 31, the protective housing 1 will move forward on the anti-collision pier, which is simple and convenient; and through the action of the first spring 5, even if the surface of the anti-collision pier is uneven, it can ensure that each walking wheel 35 always adheres tightly to the anti-collision pier, ensuring smooth forward movement.

[0062] Further, as Figure 1 shown, in order to facilitate the motor 31 to drive each rotating shaft 32 to rotate, the first transmission component 33 includes a first pulley 331 fixed on the output shaft of the motor 31 and two second pulleys 332 respectively fixed on the tops of the two rotating shafts 32. The first pulley 331 and the two second pulleys 332 are connected by a first belt 333. In order to facilitate the rotating shaft 32 to drive each walking wheel 35 to roll, the second transmission component 36 includes a third pulley 361 sleeved and fixed on the rotating shaft 32 and a fourth pulley 362 coaxially fixed on the walking wheel 35. The third pulley 361 and the fourth pulley 362 are connected by a second belt 363.

[0063] In this way, the first pulley 331 on the motor 31 drives the second pulley 332 through the first belt 333 to drive the rotating shaft 32 to rotate. The third pulley 361 on the rotating shaft 32 drives the fourth pulley 362 through the second belt 363 to drive the traveling wheel 35 to rotate. As a result, the motor 31 drives the traveling wheel 35 to rotate, and the traveling wheel 35 drives the protective housing 1 to move, ensuring better operation of the traveling mechanism 3.

[0064] Further, for the convenience of processing and installation, as Figure 2 shown, the walking arm 34 includes a connecting ring 341, a connecting arm 342, and a first connecting member 343 that are fixedly connected in sequence. The connecting ring 341 is sleeved and pivotally connected to the rotating shaft 32. The length direction of the connecting arm 342 extends in the horizontal direction. The traveling wheel 35 is pivotally connected to the first connecting member 343. The fourth pulley 362 is provided above the first connecting member 343 and is fixed to the traveling wheel 35.

[0065] Generally, for the convenience of installing the traveling wheel 35, the first connecting member 343 is a first U-shaped plate. The traveling wheel 35 is embedded in the first U-shaped plate. The traveling wheel 35 includes a first fixed shaft and a first wheel body sleeved and fixed on the outside of the first fixed shaft. The first fixed shaft is pivotally connected to the first U-shaped plate. The axial direction of the first fixed shaft is arranged vertically. The upper end of the first fixed shaft extends out of the first U-shaped plate and is fixedly connected to the fourth pulley 362 on the outside of the first U-shaped plate.

[0066] It can be understood that generally, the connecting ring 341 is sleeved on the rotating shaft 32 through a bearing, and the rotation of the rotating shaft 32 will not affect the walking arm 34. The U-shaped opening end of the first U-shaped plate is arranged facing away from the rotating shaft 32, and the bottom of the first U-shaped plate is fixed to the connecting arm 342. The first fixed shaft can be rotatably connected to the first U-shaped plate through a bearing. The third pulley 361 and the fourth pulley 362 are respectively located above the connecting ring 341 and the first U-shaped plate.

[0067] Further, for the convenience of providing support for the horizontal movement of the protective housing 1 during spraying, as Figure 1 and Figure 3 shown, a first roller 6 and an elastic component 7 are provided between the open end of the protective housing 1 and the connecting plate 15. The first end of the elastic component 7 is pivotally connected to the first roller 6. The second end of the elastic component 7 is slidably inserted through the connecting plate 15 in a direction perpendicular to the plate surface of the connecting plate 15. Through the action of the elastic component 7, after the protective housing 1 is buckled on the anti-collision pier, the first roller 6 can be made to closely adhere to the other surface of the anti-collision pier, and it can adapt to anti-collision piers of various different thicknesses, forming a reliable horizontal support.

[0068] Specifically, for the convenience of processing and installation, as Figure 5As shown, the elastic component 7 includes a connecting shaft 71, a second connecting member 72 fixed to the first end of the connecting shaft 71, and a second spring 73 sleeved on the connecting shaft 71. A through hole is formed in the connecting plate 15. The second connecting member 72 is pivotally connected to the first roller 6. The second end of the connecting shaft 71 is axially slidably inserted into the through hole. The two ends of the second spring 73 respectively abut between the second connecting member 72 and the connecting plate 15.

[0069] Generally, the second spring 73 is a spring with a relatively large elastic force. In this way, through the elastic force of the second spring 73, one end of it can push the second connecting member 72, and make the first roller 6 press on the other surface of the anti-collision pier; the other end can push the connecting plate 15, making the entire protective housing 1 close to the anti-collision pier, so that the gap between the baffle 14 and the anti-collision pier is small, avoiding the diffusion of the paint from the gap. According to the different thicknesses of the anti-collision pier, the second spring 73 will be compressed to different degrees, which can ensure that the first roller 6 closely adheres to the other surface of the anti-collision pier and the baffle 14 closely adheres to the side surface of the anti-collision pier.

[0070] Furthermore, to facilitate the installation of the first roller 6, the second connecting member 72 is a second U-shaped plate. The first roller 6 is embedded in the second U-shaped plate. The first roller 6 includes a second fixed shaft and a second wheel body sleeved outside the second fixed shaft through a bearing. The second fixed shaft is fixedly connected to the second U-shaped plate, and the axial direction of the second fixed shaft is arranged vertically.

[0071] It can be understood that the U-shaped opening end of the second U-shaped plate is arranged towards the opening end of the protective housing 1. The bottom of the second U-shaped plate is fixed to the first end of the second fixed shaft. One end of the second spring 73 abuts against the bottom of the second U-shaped plate. In this way, during operation, the first roller 6 rolls horizontally, and the wheel surface of the second wheel body can rollingly contact the other surface of the anti-collision pier, reducing the friction force and ensuring the traveling effect of the protective housing 1.

[0072] In practical applications, to ensure the horizontal rolling effect of the first roller 6 for guiding and supporting when the protective housing 1 travels, the through hole is a square hole, and the cross-section of the connecting shaft 71 is square to prevent the first connecting shaft 71 from rotating and ensure that the axial direction of the first roller 6 is always in the vertical position.

[0073] To facilitate the limitation of the initial position of the connecting shaft 71 (that is, when the protective housing 1 is not buckled on the anti-collision pier), such as Figure 5As shown, a limit block 711 is adjustably fixed to the second end of the connecting shaft 71. The limit block 711 and the first roller 6 are respectively located on both sides of the connecting plate 15. Generally, the limit block 711 is threadedly connected to the second end of the connecting shaft 71. By means of the limit block 711, the farthest position of the first roller 6 inside the connecting plate 15 (i.e., the side facing the open end of the protective housing 1) can also be adjusted, and this farthest position can be adjusted according to the different thicknesses of the anti-collision piers, which is convenient to use.

[0074] Further, second rollers 8 are pivotally connected to both sides of the open end of the protective housing 1 (i.e., second rollers 8 are provided on the side edges of the two baffles 14). The axial direction of the second rollers 8 is arranged vertically, and a part of the second rollers 8 protrudes from the open end of the protective housing 1.

[0075] In this way, during use, the first roller 6 and the second roller 8 are respectively located on both sides of the anti-collision pier, and can provide support for the horizontal movement of the protective housing 1 during spraying, and at the same time can greatly reduce the friction force, further ensuring the smooth movement of the protective housing 1. The number of the first rollers 6 and the second rollers 8 can be determined according to needs. For example, in this embodiment, a total of four first rollers 6 are provided, and two second rollers 8 are respectively provided on the two baffles 14.

[0076] Generally, for the convenience of processing and installation, installation grooves are formed on both sides of the open end of the protective housing 1. The second rollers 8 are embedded in the installation grooves. The second rollers 8 include a third fixed shaft and a third wheel body sleeved outside the third fixed shaft through a bearing. The third fixed shaft is fixedly connected to the groove wall of the installation groove, and the axial direction of the third fixed shaft is arranged vertically.

[0077] Further, in order to prevent friction between the top of the protective housing 1 (i.e., the top plate 11) and the anti-collision pier, as Figure 3 shown, a plurality of balls 9 are provided on the lower surface of the top of the protective housing 1 (i.e., the lower surface of the top plate 11). During operation, the rolling of the balls 9 can reduce the friction between the two, facilitating the smooth movement of the protective housing 1 on the anti-collision pier. The installation method of the balls 9 can be determined according to needs, as long as it does not affect the rotation of the balls 9 itself, and the present invention does not limit this.

[0078] Further, in order to facilitate the collection of excess paint, as Figure 1 shown, a storage groove is provided at the bottom of the protective housing 1. Specifically, this storage groove is formed on the above-mentioned bottom plate 12, and the storage groove can be in a shape with a narrowed opening as shown in Figure 1 the bottom. In this way, during the spraying process, the storage groove can collect the excess paint in the protective housing 1 that has not been absorbed by the anti-collision pier, and recycle it while not polluting the environment and endangering the health of workers, saving resources.

[0079] Further, to facilitate the feeding of the nozzle 2, as Figure 3 shown, the spraying tool further includes a feeding pipe 21, a paint bucket, and a pressure pump. The feeding pipe 21 is arranged outside the protective housing 1 and is in communication with the nozzle 2. One end of the pressure pump is connected to the paint bucket through a pipeline, and the other end of the pressure pump is connected to the feeding pipe 21. The spraying of the paint can be achieved by the pumping action of the pressure pump.

[0080] Generally, the feeding pipe 21 is arranged vertically outside the back plate 13. The number of nozzles 2 is determined according to actual needs. For example, in this embodiment, four nozzles 2 are arranged at intervals vertically on the back plate 13. During installation, corresponding installation holes are formed in the back plate 13. The spray port end of the nozzle 2 is located inside the protective housing 1, and the feeding end of the nozzle 2 passes through the installation hole and is in communication with the feeding pipe 21 outside the back plate 13.

[0081] In summary, the automatic spraying device in this embodiment has a clever structure. The spraying operation is carried out by using mechanical equipment. On the premise of improving the construction efficiency, it avoids direct contact between personnel and spraying materials, so that workers are not polluted by paint materials, protects the physical health of workers, reduces the waste of paint, saves resources, reduces energy consumption, and has a good environmental protection effect; moreover, it can adapt to anti-collision piers of various different thicknesses, has a wide application range, and is convenient for popularization and utilization; the whole device is equipped with a traveling mechanism 3, which is more convenient to use. The traveling wheels 35 can always be in contact with the surface of the anti-collision pier, avoiding the influence of the flatness of the anti-collision pier surface on the power element, ensuring that the equipment can always move forward, and realizing safe and fast spraying of the anti-collision pier.

[0082] The above is only a schematic specific embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An automatic spraying device, characterized in that, include: The vertically arranged protective shell is a box-type structure with one side open, the top of the protective shell extends outward and protrudes from the open end of the protective shell, and a connecting plate is extended downward at the top of the protective shell and away from the open end of the protective shell, and the connecting plate is opposite to the open end of the protective shell; A spraying tool, comprising a spray head fixed in the protective housing; and a walking mechanism, connected to the protective shell and capable of driving the protective shell to move; Among them, a first roller and an elastic component are provided between the open end of the protective shell and the connecting plate, the first end of the elastic component is pivotally connected to the first roller, and the second end of the elastic component can be slidably passed through the connecting plate in a direction perpendicular to the surface of the connecting plate; a plurality of ball bearings are provided on the top lower surface of the protective shell.

2. The automatic spraying device according to claim 1, characterized in that: The walking mechanism includes a motor and two rotating shafts, the housing of the motor is fixed on the top of the protective shell, the output shaft of the motor is arranged in the vertical direction and is located above the protective shell; the output shaft of the motor is connected to the two rotating shafts through a first transmission assembly, and can drive the two rotating shafts to rotate; the two rotating shafts are arranged in the vertical direction and are respectively pivoted on both sides of the protective shell; A walking arm is sleeved and pivoted on each of the rotating shafts, and the length direction of the walking arm extends in the horizontal direction; a walking wheel is pivoted at the end of the walking arm away from the rotating shaft, and the rotating shaft is connected to the walking wheel through a second transmission assembly and can drive the walking wheel to roll; two fixed plates are symmetrically fixed on both sides of the protective shell, and a first spring is fixed between the walking arm and the corresponding fixed plate.

3. The automatic spraying device according to claim 2, characterized in that: The first transmission assembly includes a first pulley fixed on the output shaft of the motor and two second pulleys respectively fixed on the top ends of the two rotating shafts. The first pulley is connected to the two second pulleys via a first belt.

4. The automatic spraying device according to claim 2, characterized in that: The second transmission assembly includes a third pulley sleeved and fixed on the rotating shaft and a fourth pulley coaxially fixed on the traveling wheel, and the third pulley is connected to the fourth pulley via a second belt.

5. The automatic spraying device according to claim 4, characterized in that: The walking arm includes a connecting ring, a connecting arm and a first connecting piece fixed in sequence, the connecting ring is sleeved and pivoted on the rotating shaft, the length direction of the connecting arm extends in the horizontal direction, the walking wheel is pivoted to the first connecting piece, and the fourth pulley is arranged above the first connecting piece and fixed to the walking wheel.

6. The automatic spraying device according to claim 5, characterized in that: The first connecting member is a first U-shaped plate, the traveling wheel is embedded in the first U-shaped plate, and the traveling wheel includes a first fixed shaft and a first wheel body sleeved and fixed on the outer side of the first fixed shaft; the first fixed shaft is pivotally connected to the first U-shaped plate, the axial direction of the first fixed shaft is arranged vertically, and the upper end of the first fixed shaft extends out of the first U-shaped plate and is fixedly connected to the fourth pulley on the outer side of the first U-shaped plate.

7. The automatic spraying device according to claim 1, wherein The elastic component includes a connecting shaft, a second connecting member fixed to the first end of the connecting shaft, and a second spring sleeved on the connecting shaft. A through hole is formed in the connecting plate; the second connecting member is pivotally connected to the first roller, the second end of the connecting shaft is axially slidably inserted into the through hole, and both ends of the second spring respectively abut between the second connecting member and the connecting plate.

8. The automatic spraying device according to claim 7, wherein The second connecting member is a second U-shaped plate, the first roller is embedded in the second U-shaped plate, the first roller includes a second fixed shaft and a second wheel body sleeved on the outer side of the second fixed shaft through a bearing, the second fixed shaft is fixedly connected to the second U-shaped plate, and the axial direction of the second fixed shaft is arranged vertically.

9. The automatic spraying device according to claim 7, wherein The through hole is a square hole, and the cross section of the connecting shaft is square.

10. The automatic spraying device according to claim 7, wherein A limiting block is adjustably fixed to the second end of the connecting shaft, and the limiting block and the first roller are respectively located on both sides of the connecting plate.

11. The automatic spraying device according to claim 1, wherein Second rollers are pivotally connected to both sides of the open end of the protective housing, the axial direction of the second rollers is arranged vertically, and a part of the second rollers protrudes from the open end of the protective housing.

12. The automatic spraying device according to claim 11, wherein Installation grooves are formed on both sides of the open end of the protective housing, the second rollers are embedded in the installation grooves, the second rollers include a third fixed shaft and a third wheel body sleeved on the outer side of the third fixed shaft through a bearing, the third fixed shaft is fixedly connected to the groove wall of the installation groove, and the axial direction of the third fixed shaft is arranged vertically.

13. The automatic spraying device according to claim 1, wherein A storage groove is provided at the bottom of the protective housing.

14. The automatic spraying device according to claim 1, wherein The spraying tool further includes a feed pipe, a paint bucket and a pressure pump. The feed pipe is arranged outside the protective housing and is communicated with the spray head. One end of the pressure pump is connected to the paint bucket through a pipeline, and the other end of the pressure pump is connected to the feed pipe.

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