An automatic spraying device for negative pressure waterproof layer of underground space

Abstract

The application discloses an automatic spraying device for underground space negative pressure waterproof layer and belongs to the technical field of spraying devices. The automatic spraying device for underground space negative pressure waterproof layer comprises a walking support frame, symmetrical electric walking wheels are arranged on the two sides of the walking support frame, two electric walking wheels are respectively fixedly installed on the two sides of the walking support frame, an installation plate is arranged in the walking support frame, the installation plate is fixedly installed in the walking support frame, and the walking support frame and the installation plate are integrally arranged. A spraying assembly is arranged on the upper end of the walking support frame, and a steering adjusting assembly is arranged below the spraying assembly. The automatic spraying device is provided with a matched guiding and positioning assembly and a steering adjusting assembly. When the equipment walks to the end of a wall surface, mechanical contact between a steering rod and a positioning column automatically triggers a reversing mechanism, continuous reciprocating spraying circulation is formed, full-automatic end reversing is realized, and the continuity and the automation degree of spraying operation are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of spraying device technology, specifically relating to an automatic spraying device for negative pressure waterproofing layer in underground space. Background Technology

[0002] With the acceleration of urbanization, the development and utilization of underground space is receiving increasing attention. The number of underground structures such as basements, underground utility tunnels, underground parking lots, subway stations, and civil defense projects is constantly increasing, becoming an important direction for urban functional expansion. However, underground spaces, often located below the groundwater level or in damp soil environments, face serious problems such as water leakage and dampness, directly affecting the functionality and durability of underground buildings. Negative pressure waterproofing layer construction is a key process in the three-proof system of basements, mainly including: spraying nano-silicon ion penetrating modifier, applying high-strength alkali-resistant repair agent, and laying composite polymer alkali-resistant fibers. These waterproofing materials need to be sprayed evenly and continuously onto the concrete walls or ceiling to form a dense waterproof layer, effectively preventing water molecules from penetrating.

[0003] Traditional spraying of negative pressure waterproofing layers in underground spaces mainly involves operators manually spraying the walls of the underground space with handheld spray guns. However, underground spaces are often large-area, long-distance construction sites. Manual spraying is slow, has limited coverage, and can easily lead to fatigue from prolonged continuous work. It is also difficult to maintain stable control over the thickness and uniformity of the spray, which cannot meet the time requirements for rapid construction of large-scale underground projects. Large-area spraying requires a large amount of manpower, and labor costs continue to rise. Furthermore, underground spaces have poor ventilation, insufficient light, and are enclosed. After the paint is atomized, it can easily diffuse into the air. Long-term inhalation of harmful fumes and contact with chemical paints can damage the respiratory system, skin, and eyes of operators, resulting in low safety. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic spraying device for negative pressure waterproof layer in underground space.

[0005] The technical solution adopted to solve the above-mentioned technical problems is: an automatic spraying device for negative pressure waterproof layer in underground space, including a walking support frame, electric walking wheels symmetrically arranged on both sides of the walking support frame, two electric walking wheels respectively fixedly installed on both sides of the walking support frame, an installation plate is arranged inside the walking support frame, and the walking support frame and the installation plate are integrated; a spraying component is arranged at the upper end of the walking support frame, and a steering adjustment component is arranged below the spraying component.

[0006] Through the above technical solution, as the electric walking wheel drive equipment moves along the wall, the spraying component performs spraying operations on both sides of the wall.

[0007] Furthermore, the walking support frame has symmetrically provided mounting slots on its inner side, and guide positioning components are respectively provided in the two mounting slots.

[0008] Furthermore, the guide positioning component includes a slider that is slidably connected to the mounting groove, a first telescopic rod is provided on one side of the slider, the first telescopic rod is fixedly installed between the slider and the first telescopic rod, and a second telescopic rod is slidably connected to both ends of the first telescopic rod.

[0009] With the above technical solution, a first telescopic rod is fixedly installed on one side of the slider, and a second telescopic rod is slidably connected to both ends of the first telescopic rod. The two second telescopic rods can extend outward or retract inward relative to the first telescopic rod to achieve adjustment of the total length.

[0010] Furthermore, each of the two second telescopic rods has a limiting seat fixedly installed at the end away from the first telescopic rod, and a positioning post is provided on the upper surface of the end of the second telescopic rod near the limiting seat. The positioning post is fixedly installed between the second telescopic rod and the limiting seat.

[0011] With the above technical solution, the steering rod in the steering adjustment assembly moves to the position of the positioning post on the guide positioning assembly. Due to the limiting effect of the positioning post, the steering rod that continues to move forward is blocked by the positioning post, and the steering rod will also be forced to rotate around its connection point.

[0012] Furthermore, the steering adjustment assembly includes a rotating shaft rotatably connected to the mounting plate, with a mounting gear fixedly mounted at one end of the rotating shaft, and an incomplete gear provided on one side of the mounting gear.

[0013] Furthermore, a mounting plate is fixedly installed on the incomplete gear, and a steering rod is provided on one side of the mounting plate. The mounting plate and the steering rod are fixedly installed, and a connecting bracket is fixedly connected to the end of the mounting plate away from the steering rod. The connecting bracket, the mounting plate, and the steering rod are integrated into one unit.

[0014] Furthermore, an installation shaft is fixedly installed inside the connecting bracket, a connecting rod is rotatably connected to the installation shaft, a limit block is rotatably connected to the installation plate, a sliding groove is opened in the limit block, a connecting rod is slidably connected in the sliding groove, the installation gear meshes with the incomplete gear, the installation disc is rotatably connected to the installation plate, and one end of the rotating shaft is fixedly connected to the spraying assembly.

[0015] With the above technical solution, the steering rod is forced to rotate around its connection point. The steering rod is fixedly installed with the mounting plate. Therefore, the rotation of the steering rod drives the mounting plate to rotate synchronously. When the mounting plate rotates, it drives the incomplete gear to rotate synchronously. The rotation of the incomplete gear drives the mounting gear to rotate through meshing. When the mounting gear rotates, it drives the steering base and the entire spraying assembly to rotate synchronously through the rotating shaft, thereby realizing the automatic reversal of the spraying direction.

[0016] Furthermore, the spraying assembly includes a steering base fixedly connected to one end of a rotating shaft, a support frame fixedly installed on the upper end of the steering base, a spraying seat fixedly connected to the upper end of the support frame, a spraying groove opened in the spraying seat, multiple sets of mounting nozzles fixedly installed circumferentially in the spraying groove, a spraying paint tank fixedly installed on the upper end of the steering base, the spraying paint tank being filled with paint, a liquid suction pump fixedly installed in the spraying paint tank, and the spraying paint tank being connected to the mounting nozzles in the spraying groove.

[0017] Through the above technical solution, the suction pump extracts the coating from the spray coating box and delivers it to each installation nozzle through pipeline. The installation nozzle atomizes the coating and sprays it evenly onto the construction base surface. Multiple sets of installation nozzles are arranged in a circle in the spray tank to ensure a large spray coverage area, uniform atomization, and no spray dead corners. During spraying, the atomized coating is evenly covered on the construction base surface to form a continuous negative pressure waterproof layer.

[0018] The beneficial effects of the present invention are as follows: (1) By designing a matching guide positioning component and a steering adjustment component, when the equipment travels to the end of the wall, the mechanical contact between the steering rod and the positioning column automatically triggers the reversing mechanism. The steering rod contacts the positioning column, and the fully geared drive gear rotates. Through the rotating shaft, the spraying component automatically reverses direction and then travels in the opposite direction to return to spray the wall multiple times, forming a continuous reciprocating spraying cycle. This achieves fully automatic end reversing without manual intervention, greatly improving the continuity and automation of the spraying operation. The spraying operation is carried out synchronously with the travel drive. The equipment continues to spray during the movement and reaches the end. Afterwards, it automatically reverses direction and continues spraying, realizing continuous coverage of a large area of ​​wall surface by a single device, with high spraying efficiency; (2) By designing the slider, first telescopic rod, second telescopic rod and limit seat in the guide positioning component, the present invention can be adjusted according to the actual width of the underground space, so that the limit seats at both ends are close to the walls on both sides, the first telescopic rod and the second telescopic rod of the guide positioning component slide together, and the total length can be adjusted according to the actual width of the underground space. Whether it is a narrow basement passage or a spacious underground parking lot, the equipment can be adapted by telescopic adjustment, without the need to replace the equipment or add a track. It has strong versatility and wide applicability. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the guiding and positioning component of the present invention; Figure 3 This is a three-dimensional structural diagram of the walking support frame of the present invention; Figure 4 This is a three-dimensional structural diagram of the steering adjustment component of the present invention; Figure 5 This is an exploded view of the steering adjustment component of the present invention; Figure 6 This is a three-dimensional structural diagram of the spraying assembly of the present invention.

[0020] Reference numerals: 1. Walking support frame; 11. Electric walking wheel; 12. Mounting plate; 13. Mounting groove; 2. Guide positioning assembly; 21. Slider; 22. First telescopic rod; 23. Second telescopic rod; 24. Positioning column; 25. Limiting seat; 3. Spraying assembly; 31. Steering base; 32. Support frame; 33. Spraying seat; 34. Spraying groove; 35. Mounting nozzle; 36. Spraying paint box; 4. Steering adjustment assembly; 40. Limiting block; 41. Slide groove; 42. Connecting rod; 43. Mounting shaft; 44. Connecting bracket; 45. Mounting plate; 46. Incomplete gear; 47. Steering rod; 48. Mounting gear; 49. Rotating shaft. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] like Figures 1-5As shown in this embodiment, an automatic spraying device for negative pressure waterproofing layer in underground space includes a walking support frame 1. Electric walking wheels 11 are symmetrically arranged on both sides of the walking support frame 1, and are fixedly installed on both sides of the walking support frame 1. An installation plate 12 is installed inside the walking support frame 1, and is fixedly installed within the walking support frame 1. The walking support frame 1 and the installation plate 12 are integrally formed. A spraying component 3 is provided at the upper end of the walking support frame 1, and a steering adjustment component 4 is provided below the spraying component 3. During the movement of the device along the wall driven by the electric walking wheels 11, the spraying component 3 performs spraying operations on both sides of the wall. Installation grooves 13 are symmetrically opened on the inner side of the walking support frame 1, and guide positioning components 2 are respectively installed in the two installation grooves 13. The guide positioning component 2 includes a slider 21 slidably connected to the installation groove 13, and a first telescopic component is provided on one side of the slider 21. The first telescopic rod 22 is fixedly installed between the first telescopic rod 22 and the slider 21. The two ends of the first telescopic rod 22 are slidably connected to the second telescopic rod 23. The first telescopic rod 22 is fixedly installed on one side of the slider 21. The two ends of the first telescopic rod 22 are slidably connected to the second telescopic rod 23. The two second telescopic rods 23 can extend outward or retract inward relative to the first telescopic rod 22 to adjust the total length. The ends of the two second telescopic rods 23 away from the first telescopic rod 22 are respectively fixedly installed with limit seats 25. The upper surface of the end of the second telescopic rod 23 near the limit seat 25 is provided with a positioning post 24. The positioning post 24 is fixedly installed with the second telescopic rod 23. When the steering rod 47 in the steering adjustment assembly 4 moves to the position of the positioning post 24 on the guide positioning assembly 2, the steering rod 47 that continues to move forward is blocked by the positioning post 24 due to the limiting effect of the positioning post 24. The steering rod 47 will also be forced to rotate around its connection point.

[0023] like Figures 1-5As shown, the steering adjustment assembly 4 includes a rotating shaft 49 rotatably connected to the mounting plate 12. A mounting gear 48 is fixedly mounted at one end of the rotating shaft 49, and an incomplete gear 46 is provided on one side of the mounting gear 48. A mounting plate 45 is fixedly mounted on the incomplete gear 46, and a steering rod 47 is provided on one side of the mounting plate 45. The mounting plate 45 and the steering rod 47 are fixedly mounted. A connecting bracket 44 is fixedly connected to the end of the mounting plate 45 away from the steering rod 47. The connecting bracket 44, the mounting plate 45, and the steering rod 47 are integrated into one unit. A mounting shaft 43 is fixedly mounted inside the connecting bracket 44, and a connecting rod 42 is rotatably connected to the mounting shaft 43. A limit block 40 is rotatably connected to the mounting plate 12, and the limit block 40 has an opening inside. A slide groove 41 is provided, and a connecting rod 42 is slidably connected in the slide groove 41. The mounting gear 48 and the incomplete gear 46 mesh and drive each other. The mounting plate 12 is rotatably connected to the mounting disk 45. One end of the rotating shaft 49 is fixedly connected to the spraying assembly 3. The steering rod 47 is forced to rotate around its connection point. The steering rod 47 is fixedly installed with the mounting disk 45. Therefore, the rotation of the steering rod 47 drives the mounting disk 45 to rotate synchronously. When the mounting disk 45 rotates, it drives the incomplete gear 46 to rotate synchronously. The rotation of the incomplete gear 46 drives the mounting gear 48 to rotate through meshing. When the mounting gear 48 rotates, it drives the steering base 31 and the entire spraying assembly 3 to rotate synchronously through the rotating shaft 49, so as to realize the automatic reversal of the spraying direction.

[0024] like Figures 1-6 As shown, the spraying assembly 3 includes a steering base 31 fixedly connected to one end of a rotating shaft 49. A support frame 32 is fixedly mounted on the upper end of the steering base 31. A spraying seat 33 is fixedly connected to the upper end of the support frame 32. A spraying groove 34 is opened inside the spraying seat 33. Multiple sets of spray nozzles 35 are fixedly mounted circumferentially inside the spraying groove 34. A paint tank 36 is fixedly mounted on the upper end of the steering base 31. The paint tank 36 is filled with paint. A liquid suction device is fixedly installed inside the paint tank 36. The pump is connected to the paint tank 36 and the nozzles 35 installed in the spray tank 34. The suction pump draws paint from the paint tank 36 and delivers it to each nozzle 35 through pipelines. The nozzles 35 atomize the paint and spray it evenly onto the construction surface. Multiple sets of nozzles 35 are arranged in a circle in the spray tank 34 to ensure a large spray coverage area, uniform atomization, and no spray dead corners. During spraying, the atomized paint evenly covers the construction surface, forming a continuous negative pressure waterproof layer.

[0025] The working principle of this embodiment is as follows: Before the spraying operation, the slider 21 of the guide positioning component 2 is installed in the mounting groove 13 symmetrically opened inside the support frame 1. A first telescopic rod 22 is fixedly installed on one side of the slider 21. The two ends of the first telescopic rod 22 are slidably connected to the second telescopic rod 23. The two second telescopic rods 23 can extend outward or retract inward relative to the first telescopic rod 22 to achieve the adjustment of the total length. A limiting seat 25 is fixedly installed at the end of the second telescopic rod 23 away from the first telescopic rod 22. The limiting seat 25 is used to abut against the two side walls of the underground space. After the adjustment is completed, the electric walking wheel 11 is started. The walking support frame 1 moves along the space under the drive of the electric walking wheel 11. As the electric walking wheel 11 drives the equipment to move along the wall, the spraying assembly 3 sprays the walls on both sides. When the equipment moves to the end of the wall, the steering rod 47 in the steering adjustment assembly 4 moves to the position of the positioning post 24 on the guide positioning assembly 2. Due to the limiting effect of the positioning post 24, the steering rod 47, which continues to move forward, is blocked by the positioning post 24 and cannot continue to move in a straight line. Under the driving force of the walking support frame 1 continuing to move forward, the steering rod 47 is forced to rotate around its connection point. The steering rod 47 is fixedly installed with the mounting plate 45. Therefore, the rotation of the steering rod 47 drives the mounting plate 45 to rotate synchronously. When the mounting plate 45 rotates, it drives the incomplete gear 46 to rotate synchronously. The rotation of the incomplete gear 46 drives the mounting gear 48 to rotate through meshing. When the mounting gear 48 rotates, it drives the steering base 31 and the entire spraying assembly 3 to rotate synchronously through the rotating shaft 49, thereby realizing the automatic reversal of the spraying direction.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An automatic spraying device for negative pressure waterproof layer in underground space, comprising a walking support frame (1), characterized in that, The walking support frame (1) is symmetrically provided with electric walking wheels (11) on both sides. The two electric walking wheels (11) are fixedly installed on both sides of the walking support frame (1). The walking support frame (1) is provided with an installation plate (12). The walking support frame (1) and the installation plate (12) are fixedly installed in the walking support frame (1). The walking support frame (1) and the installation plate (12) are integrated. The upper end of the walking support frame (1) is provided with a spraying component (3), and the lower end of the spraying component (3) is provided with a steering adjustment component (4).

2. The automatic spraying device for negative pressure waterproof layer in underground space according to claim 1, characterized in that, The walking support frame (1) has symmetrically opened mounting slots (13) on its inner side, and guide positioning components (2) are respectively installed in the two mounting slots (13).

3. The automatic spraying device for negative pressure waterproof layer in underground space according to claim 2, characterized in that, The guide positioning component (2) includes a slider (21) that is slidably connected to the mounting groove (13). A first telescopic rod (22) is provided on one side of the slider (21). The first telescopic rod (22) is fixedly installed between the slider (21) and the first telescopic rod (22). A second telescopic rod (23) is slidably connected to both ends of the first telescopic rod (22).

4. The automatic spraying device for negative pressure waterproof layer in underground space according to claim 3, characterized in that, Two second telescopic rods (23) are respectively fixedly installed with limit seats (25) at the ends away from the first telescopic rod (22). A positioning post (24) is provided on the upper surface of the end of the second telescopic rod (23) near the limit seat (25). The positioning post (24) is fixedly installed between the second telescopic rod (23).

5. The automatic spraying device for negative pressure waterproof layer in underground space according to claim 1, characterized in that, The steering adjustment assembly (4) includes a rotating shaft (49) rotatably connected to the mounting plate (12). One end of the rotating shaft (49) is fixedly mounted with a mounting gear (48), and an incomplete gear (46) is provided on one side of the mounting gear (48).

6. The automatic spraying device for negative pressure waterproof layer in underground space according to claim 5, characterized in that, An mounting plate (45) is fixedly installed on the incomplete gear (46). A steering rod (47) is provided on one side of the mounting plate (45). The mounting plate (45) and the steering rod (47) are fixedly installed. A connecting bracket (44) is fixedly connected to the end of the mounting plate (45) away from the steering rod (47). The connecting bracket (44), the mounting plate (45) and the steering rod (47) are integrated.

7. The automatic spraying device for negative pressure waterproof layer in underground space according to claim 6, characterized in that, An installation shaft (43) is fixedly installed inside the connecting bracket (44). A connecting rod (42) is rotatably connected to the installation shaft (43). A limiting block (40) is rotatably connected to the mounting plate (12). A sliding groove (41) is provided inside the limiting block (40). The connecting rod (42) is slidably connected inside the sliding groove (41). The installation gear (48) meshes with the incomplete gear (46). The installation disc (45) is rotatably connected to the mounting plate (12). One end of the rotating shaft (49) is fixedly connected to the spraying assembly (3).

8. The automatic spraying device for negative pressure waterproof layer in underground space according to claim 1, characterized in that, The spraying assembly (3) includes a steering base (31) fixedly connected to one end of a rotating shaft (49). A support frame (32) is fixedly installed on the upper end of the steering base (31). A spraying seat (33) is fixedly connected to the upper end of the support frame (32). A spraying groove (34) is opened in the spraying seat (33). Multiple sets of mounting nozzles (35) are fixedly installed around the circumference of the spraying groove (34). A spraying paint box (36) is fixedly installed on the upper end of the steering base (31). The spraying paint box (36) is filled with paint. A liquid suction pump is fixedly installed in the spraying paint box (36). The spraying paint box (36) and the mounting nozzles (35) in the spraying groove (34) are connected.

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