Guniting equipment for inner wall galling treatment

Abstract

The invention discloses guniting equipment for inner wall galling treatment, and belongs to the technical field of inner wall guniting. Comprising a spraying generator, a hopper, an inner hopper and a vibrating screen seat, and a temperature control adjusting assembly is arranged between the hopper and the inner hopper; supporting connecting plates are symmetrically arranged on the inner wall of the inner hopper, and buffer springs are mounted on the supporting connecting plates; an impact frequency-changing seat is mounted at the lower end of the supporting connecting plate, an impact block fixedly connected with a frequency-adjusting spring is slidably arranged at the bottom end of the impact frequency-changing seat, one end of the frequency-adjusting spring is connected with the conduction block, the other end of the frequency-adjusting spring is connected with the impact block, and the tail end of the impact block abuts against the inner hopper; the temperature control adjusting assembly can adjust and control the temperature of mortar, the mortar spraying fluency and the galling forming quality are improved, and the wall hanging prevention function of the inner hopper can be achieved through a frequency adjusting spring and the like; the problems that the interior wall galling and guniting equipment is unstable in mortar temperature control and serious in wall hanging are solved.

Description

Technical Field

[0001] This invention belongs to the field of interior wall spraying technology, specifically a spraying device for interior wall roughening treatment. Background Technology

[0002] Interior wall roughening is a key process in building decoration and wall reinforcement projects. Its core purpose is to enhance the adhesion of subsequent plastering, tiling and other processes by forming a rough coating on the wall surface, thereby ensuring the quality and durability of the wall construction. As the core equipment in this process, mortar spraying equipment has been widely used in various engineering scenarios such as residential buildings, commercial buildings and industrial plants due to its advantages of high efficiency and uniform spraying. Existing interior wall roughening spraying equipment generally suffers from several structural defects, making it difficult to meet the demands of efficient and high-quality construction. The core problems are concentrated in the following aspects: First, there is a lack of mortar temperature control. Most equipment lacks a dedicated mortar temperature control structure, making it impossible to accurately regulate the mortar temperature. This easily leads to situations where the spraying temperature is too high or too low, causing a series of construction problems. When the ambient temperature is high or the equipment generates heat during operation, the mortar temperature is too high, causing it to dry and clump rapidly. This results in a significant decrease in mortar fluidity, making it difficult to smoothly convey through the feeding pipe and easily causing blockages in the feeding pipe and nozzles. Frequent shutdowns for cleaning are required, severely affecting the continuity of construction. When the ambient temperature is low, the mortar temperature is too low, causing it to gradually solidify and harden. This also reduces the mortar fluidity, leading to uneven spraying, inconsistent roughening coating thickness, insufficient adhesion, and quality problems such as hollowing and peeling. Subsequent rework is required, increasing construction costs and time. Secondly, the mortar pretreatment and mixing effects are poor. The equipment lacks an integrated screening and mixing structure, making it impossible to effectively remove hard lumps and impurities in the mortar. These easily enter the feeding channel with the material, exacerbating blockages. Simultaneously, the simple mixing structure makes it difficult to achieve continuous and uniform mixing, leading to mortar stratification and segregation, further reducing mortar uniformity and directly affecting the construction quality of the roughening and shotcreting. Thirdly, the equipment lacks intelligence and protection, and there is a lack of a real-time monitoring mechanism for its operating status. Abnormalities such as material blockages and loose component connections cannot be detected in time, often only after the equipment malfunctions worsen and construction is interrupted. This not only easily damages core components but also significantly shortens the equipment's lifespan. Furthermore, the equipment is difficult to maintain and suffers from severe wall adhesion. The disassembly and assembly of core components such as hoppers and screens are cumbersome, and cleaning and replacing filters is time-consuming and labor-intensive, slowing down overall operational efficiency. At the same time, the inner wall of the hopper lacks an anti-wall adhesion structure, making it easy for mortar to adhere and accumulate on the inner wall. Long-term residue will dry and harden, resulting in material waste and affecting the stability of subsequent mortar mixing and transportation, further increasing the incidence of construction failures. Therefore, the above problems need to be addressed. Summary of the Invention

[0003] This invention overcomes the shortcomings of the prior art and proposes a spraying equipment for interior wall roughening treatment; it solves the problems of unstable mortar temperature control and severe wall adhesion in interior wall roughening spraying equipment.

[0004] This invention is achieved through the following technical solution: A spraying device for roughening interior walls includes a supporting base plate, a mortar spraying box mounted on the supporting base plate, and a spraying generator mounted on the top of the mortar spraying box. A feeding pipe for conveying mortar is installed on the side of the mortar spraying box, and a feeding nozzle for discharging mortar is connected to the feeding pipe. A hopper is connected to the upper part of the feeding pipe. A vibrating screen base is installed on the top of the hopper, and an inner hopper is installed on the hopper. A temperature control adjustment component is provided between the hopper and the inner hopper. Support plates are symmetrically arranged on the inner wall of the inner hopper, and buffer springs are installed on each support plate. Connecting bolts are installed on the vibrating screen base at positions corresponding to the buffer springs. The end of the buffer spring away from the support plate abuts against the vibrating screen base and is connected to the connecting bolt. An impact frequency converter seat is installed at the lower end of the supporting plate. A high-damping vibration damping pad is located at the top of the impact frequency converter seat and below the buffer spring. A transmission block is installed on the high-damping vibration damping pad. The lower end of the transmission block extends into the impact frequency converter seat. A frequency tuning spring that cooperates with the transmission block is installed in the impact frequency converter seat. An impact block is slidably installed at the bottom end of the impact frequency converter seat. One end of the frequency tuning spring is connected to the transmission block, and the other end of the frequency tuning spring is connected to the impact block. The end of the impact block abuts against the inner bucket.

[0005] Furthermore, the temperature control and regulation component includes a connecting cavity; the outer wall of the inner hopper has several annular connecting cavities from top to bottom, and the several connecting cavities are connected to form a temperature control cavity surrounding the inner hopper; the hopper and the inner hopper abut and press together to seal the connecting cavity; the connecting cavity maintains the set temperature of the inner hopper through an external liquid heat source.

[0006] Furthermore, the temperature control and adjustment component also includes connecting pipes and connecting valve pipes; two connecting pipes are installed on the hopper, and the two connecting pipes extend into the communicating cavities at the upper and lower ends respectively; two connecting valve pipes are connected to the hopper, and the two connecting valve pipes are respectively connected to the two connecting pipes.

[0007] Furthermore, the bottom of the hopper is provided with an abutment seat for supporting the inner hopper, and the upper layer of the abutment seat is provided with a supporting rubber plate that is pressed and sealed to the bottom of the inner hopper.

[0008] Furthermore, multiple limiting blocks are symmetrically arranged on the top wall of the hopper, and multiple limiting rings are arranged on the inner hopper to engage with the limiting blocks. The limiting blocks and limiting rings engage with each other for positioning, so as to realize the quick alignment and installation of the inner hopper and the hopper. The outer edge plate of the vibrating screen seat is covered on the limiting blocks, and the screen frame of the vibrating screen seat is located in the inner hopper.

[0009] Furthermore, a vibrating motor is installed on the vibrating screen base, a sliding screen frame is installed on the inner wall of the screen frame of the vibrating screen base, four screen frame connecting rods are provided on the sliding screen frame, and four second limit pin seats are installed on the outer edge plate of the vibrating screen base. The pin structure of the second limit pin seats is fixedly extended in the screen frame connecting rods.

[0010] Furthermore, a screen plate is installed in the middle of the sliding screen frame, the bottom of the screen plate is lower than the screen frame wall of the vibrating screen seat, and the edge layer of the sliding screen frame is flush with the screen frame wall of the vibrating screen seat.

[0011] Furthermore, multiple collision sensors are equidistantly installed on the screen frame connecting rod; a control box is installed on the mortar spraying box; during operation, the collision sensors collect signals of the vibration of the screen frame connecting rod as the screen frame slides, and transmit the signals to the control box.

[0012] Furthermore, four first limit pin seats are symmetrically arranged on the inner wall of the inner hopper, and a support rod is installed between two opposite first limit pin seats. The centers of the two support rods intersect each other and an arc-shaped top cover is fixedly installed at the intersection. An output motor is installed at the lower end of the arc-shaped top cover, and a spiral stirring rod is installed on the output shaft of the output motor.

[0013] Furthermore, two handles are symmetrically arranged on the inner hopper; the top cover of the connecting bolt is equipped with a rubber cover; the bottom of the supporting base plate is equipped with casters at the four corners; one end of the feeding pipe is connected to a flange connecting plate that is sealed to the mortar spraying box, and a support column is provided between the feeding pipe and the supporting base plate.

[0014] The beneficial effects of this invention compared to the prior art are as follows: 1. This invention uses a vibrating motor to drive a vibrating screen base and a sliding screen frame to precisely screen mortar. The screen plate centrally cleans impurities, and the output motor drives a spiral stirring rod to continuously stir. The arc-shaped top cover prevents mortar from splashing and accumulating, effectively avoiding mortar clumping and stratification, and ensuring mortar uniformity. This achieves the function of integrating mortar screening and stirring, and improving the quality of spraying. Furthermore, through the cooperation of a temperature control adjustment component and a double-layer hopper structure, the connection of valve pipes, connecting pipes and connecting chambers realizes the circulation of temperature control medium. The hopper and inner hopper form a heat-insulating and sealed structure, which can accurately control the mortar temperature and prevent the mortar from solidifying too quickly. This enables the function of constant temperature storage of mortar and ensures smooth feeding.

[0015] 2. This invention uses a collision sensor on the screen frame connecting rod to monitor the equipment's operating status in real time, promptly detecting abnormalities such as material blockage and loose connections, triggering early warnings, and stopping the equipment when necessary. This effectively protects equipment components and prevents the escalation of faults, thereby achieving intelligent equipment monitoring and extending service life. Furthermore, the convenient disassembly and assembly, combined with a sealing structure, facilitate the disassembly and cleaning of the inner hopper. The flange connecting plate and supporting rubber plate ensure the sealing of each component, while the sliding screen frame and the second limit pin seat facilitate screen replacement, thus enabling convenient equipment maintenance and improving operational efficiency. Through the setting of the impact frequency conversion seat and the transmission block, the vibration of the transmission buffer spring can drive the vibration of the frequency tuning spring, causing the impact block at the bottom of the frequency tuning spring to impact the inner hopper, thereby achieving the vibration anti-wall-hanging function of the inner hopper. Ultimately, this invention solves the problems of existing interior wall roughening spraying equipment where excessively high spraying temperature leads to drying and excessively low temperature leads to solidification, resulting in poor mortar fluidity, material blockage, and uneven spraying. Attached Figure Description

[0016] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the overall second-view three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the inner hopper of the present invention; Figure 4 This is a three-dimensional structural diagram of the connecting valve pipe of the present invention; Figure 5 This is a three-dimensional structural diagram of the connecting pipe of the present invention; Figure 6 This is a three-dimensional structural diagram of the first limiting pin seat of the present invention; Figure 7 This is a three-dimensional structural diagram of the output motor of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the sliding screen frame of the present invention; Figure 9 This is a three-dimensional structural diagram of the collision sensor of the present invention; Figure 10 This is a three-dimensional structural diagram of the impact frequency converter seat of the present invention.

[0017] The following are the components listed in the diagram: 1. Support plate; 2. Mortar spraying box; 3. Hand-operated frame; 4. Control box; 5. Spray generator; 6. Casters; 7. Feed pipe; 8. Feed nozzle; 9. Hopper; 10. Vibrating screen base; 11. Flange connecting plate; 12. Inner hopper; 13. Connecting valve pipe; 14. Connecting pipe; 15. Abutment seat; 16. Limiting block; 17. Limiting retaining ring; 18. Handle rod; 19. First limiting pin seat; 20. Support connecting plate; 21. 1. Connecting cavity; 22. Support rod; 23. Arc-shaped top cover; 24. Output motor; 25. Spiral stirring rod; 26. Vibration motor; 27. Buffer spring; 28. Rubber cover; 29. ​​Sliding screen frame; 30. Connecting bolt; 31. Screen plate; 32. Screen frame connecting rod; 33. Second limit pin seat; 34. Collision sensor; 35. Impact frequency converter seat; 36. Conducting block; 37. High damping vibration damping pad; 38. Frequency tuning spring; 39. Impact block. Detailed Implementation

[0018] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of this invention are described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0019] Please see Figures 1 to 10 This embodiment proposes a spraying equipment for interior wall roughening treatment, including a supporting base plate 1, a mortar spraying box 2 installed on the supporting base plate 1, and a spraying generator 5 installed on the top of the mortar spraying box 2; a pusher 3 is installed on the mortar spraying box 2, and a control box 4 is bolted to the pusher 3; casters 6 are installed at the four corners of the bottom of the supporting base plate 1; a feeding pipe 7 for conveying mortar is installed on the side of the mortar spraying box 2, one end of the feeding pipe 7 is connected to a flange connecting plate 11 that is sealed to the mortar spraying box 2, and the other end of the feeding pipe 7 is connected to a feeding nozzle 8 for discharging material; the feeding pipe 7 and the supporting base plate 1 are connected to the mortar spraying box 2. Support columns are provided between the base plates 1. The upper part of the feeding pipe 7 is connected to the hopper 9. The top of the hopper 9 is equipped with a vibrating screen seat 10. The inner hopper 12 is installed on the hopper 9. A temperature control adjustment component is provided between the hopper 9 and the inner hopper 12. The supporting base plate 1 provides stable support for the whole machine. The moving wheels 6 facilitate flexible movement and transportation of the equipment. The push frame 3 and the control box 4 enable centralized and convenient operation. The flange connection plate 11 improves the connection and sealing of the feeding pipe 7 and the mortar spraying box 2. The hopper 9 and the inner hopper 12 form a double-layer heat-insulated material storage structure. The temperature control adjustment component can regulate the temperature of the mortar, thereby improving the smoothness of the spraying and the quality of the roughening.

[0020] The temperature control and regulation component includes a connecting cavity 21, a connecting pipe 14, and a connecting valve pipe 13. Several annular connecting cavities 21 are formed on the outer wall of the inner hopper 12 from top to bottom, and these connecting cavities 21 are interconnected to form a temperature control cavity surrounding the inner hopper 12. The hopper 9 abuts against and presses against the inner hopper 12, sealing the connecting cavity 21. The connecting cavity 21 maintains a certain temperature in the inner hopper 12 through an external liquid heat source. Two connecting pipes 14 are installed on the hopper 9, extending into the connecting cavity 21 at the upper and lower ends respectively. Two connecting valve pipes 13 are connected to the hopper 9, and each connecting valve pipe 13 is connected to one of the two connecting pipes 14. The vertically arranged connecting pipes 14 and connecting valve pipes 13 ensure uniform circulation of the temperature control medium. The hopper 9 and the inner hopper 12 are pressed and sealed to prevent leakage of the temperature control medium, thereby achieving uniform temperature control of the mortar in the inner hopper 12 and preventing the mortar from solidifying too quickly.

[0021] Multiple limiting blocks 16 are symmetrically arranged on the top wall of the hopper 9, and multiple limiting rings 17 are provided on the inner hopper 12 to engage with the limiting blocks 16. The limiting blocks 16 and the limiting rings 17 are mutually engaged and positioned to achieve quick alignment and installation of the inner hopper 12 and the hopper 9. The outer edge plate of the vibrating screen seat 10 is covered on the limiting blocks 16, and the screen frame of the vibrating screen seat 10 is located in the inner hopper 12. The vibrating screen seat 10 is stably covered on top of the hopper 9 to ensure that the material does not shift or fall during the screening process, thereby improving assembly efficiency and operational stability.

[0022] The bottom of the hopper 9 is provided with an abutment seat 15 for supporting the inner hopper 12. The upper layer of the abutment seat 15 is provided with a support rubber plate that cooperates with the bottom of the inner hopper 12 to press and seal. The abutment seat 15 provides stable support for the inner hopper 12, and the support rubber plate achieves flexible pressing and sealing of the bottom of the inner hopper 12, which not only prevents mortar leakage, but also reduces vibration and impact, and improves the stability and sealing of the inner hopper 12 installation.

[0023] Two handles 18 are symmetrically arranged on the inner hopper 12. Four support plates 20 are symmetrically arranged on the inner wall of the inner hopper 12. Each support plate 20 is equipped with a buffer spring 27. A connecting bolt 30 is installed on the vibrating screen seat 10 at the position corresponding to the buffer spring 27. The end of the buffer spring 27 away from the support plate 20 abuts against the vibrating screen seat 10 and is connected to the connecting bolt 30. A rubber cover 28 is provided on the top of the connecting bolt 30. The handles 18 facilitate the overall disassembly and cleaning of the inner hopper 12. The buffer spring 27 provides elastic vibration damping support for the vibrating screen seat 10, reducing vibration noise and structural damage. The rubber cover 28 protects the connecting bolt 30 from being blocked by mortar and extends its service life.

[0024] A vibrating motor 26 is installed on the vibrating screen base 10. A sliding screen frame 29 is installed on the inner wall of the screen frame of the vibrating screen base 10. Four screen frame connecting rods 32 are provided on the sliding screen frame 29. Four second limit pin seats 33 are installed on the outer edge plate of the vibrating screen base 10. The pin structure of the second limit pin seats 33 is fixedly extended in the screen frame connecting rods 32. The vibrating motor 26 drives the vibrating screen base 10 to realize slurry screening. The sliding screen frame 29 can be flexibly disassembled and replaced. The screen frame connecting rods 32 and the second limit pin seats 33 can be quickly fixed with pins, which is convenient for cleaning the blockage and changing the screen size, improving the applicability and maintenance convenience of the equipment.

[0025] A screen plate 31 is installed in the middle of the sliding screen frame 29. The bottom of the screen plate 31 is lower than the screen frame wall of the vibrating screen seat 10. The edge layer of the sliding screen frame 29 is flush with the screen frame wall of the vibrating screen seat 10. The screen plate 31 screens hard blocks and waste materials in the mortar, which is convenient for centralized cleaning and prevents large particles from entering the feeding pipe 7 and causing blockage. The edge layer of the sliding screen frame 29 is flush with the screen frame wall of the vibrating screen seat 10 to ensure smooth screening and no dead corners for material accumulation.

[0026] Multiple collision sensors 34 are equidistantly installed on the screen frame connecting rod 32. During operation, the collision sensors 34 collect signals of the vibration of the screen frame connecting rod 32 with the sliding screen frame 29 in real time and transmit the signals to the control box 4. When the sliding screen frame 29 experiences abnormal conditions such as material blockage, loose connection, or overload of the vibration motor 26, the collision sensors 34 can quickly capture abnormal signals exceeding the preset threshold, triggering an audible and visual warning in the control box 4. If necessary, the equipment can be suspended to achieve intelligent monitoring and safety protection of the equipment, avoid damage to the sliding screen frame 29 and screen frame connecting rod 32, and blockage of the feeding pipe 7, reduce the impact of equipment failure on the shotcrete operation, ensure continuous and stable operation of the equipment, and indirectly improve the construction efficiency and quality of interior wall roughening shotcrete. The collision sensor 34 is model IFM VKV021.

[0027] The inner wall of the inner hopper 12 is symmetrically provided with four first limit pin seats 19. A support rod 22 is provided between two opposite first limit pin seats 19. The centers of the two support rods 22 intersect each other and an arc-shaped top cover 23 is fixedly installed at the intersection. An output motor 24 is installed at the lower end of the arc-shaped top cover 23. A spiral stirring rod 25 is installed on the output shaft of the output motor 24. The first limit pin seats 19 and the support rods 22 enable quick assembly and disassembly of the output motor 24 and the spiral stirring rod 25. The arc-shaped top cover 23 prevents mortar from splashing and accumulating. The spiral stirring rod 25 continuously stirs the mortar to avoid solidification and segregation. At the same time, in conjunction with the temperature control and adjustment components, it realizes the comprehensive adjustment of the slurry in the hopper 9, further improving the uniformity of spraying and the quality of roughening construction.

[0028] An impact frequency converter seat 35 is installed at the lower end of the supporting plate 20. A high-damping vibration damping pad 37 is located at the top of the impact frequency converter seat 35, below the buffer spring 27. A transmission block 36 is mounted on the high-damping vibration damping pad 37, with its lower end extending into the impact frequency converter seat 35. A frequency tuning spring 38, which cooperates with the transmission block 36, is located in the impact frequency converter seat 35. An impact block 39 is slidably mounted at the bottom of the impact frequency converter seat 35. One end of the frequency tuning spring 38 is connected to the transmission block 36, and the other end is connected to the impact block 39. The end of the impact block 39 abuts against the inner hopper 12. The transmission block 36 is fixedly bonded to the upper surface of the high-damping vibration damping pad 37. Through the arrangement of the impact frequency converter seat 35 and the transmission block 36, the transmission buffer spring 27 can be utilized... Vibration, the high-damping damping pad 37 supports and limits the transmission block 36 while connecting it, preventing the transmission block 36 from falling into the impact frequency converter seat 35. The transmission block 36 is fixedly installed on the high-damping damping pad 37. The high-damping damping pad 37 undergoes synchronous elastic deformation while transmitting vibration, smoothly transmitting the vibration energy to the transmission block 36, driving the transmission block 36 to perform small-amplitude reciprocating vibration along the axial direction. The transmission block 36 then transmits the vibration to the frequency tuning spring 38, causing the frequency tuning spring 38 to resonate and amplify the vibration amplitude. The frequency tuning spring 38 drives the lower impact block 39 to perform reciprocating impact motion, thereby causing the impact block 39 at the bottom of the frequency tuning spring 38 to impact the inner hopper 12, thus realizing the vibration anti-wall-hanging function of the inner hopper 12.

[0029] In this embodiment, the present invention also proposes a method for using a shotcrete equipment for interior wall roughening treatment, comprising the following steps: Step one: First, connect the power supply to the device, connect the external liquid heat source to the connecting valve pipe 13 to regulate and maintain the mortar temperature, and install the mortar temperature detection device in the inner hopper 12; at the same time, conduct a comprehensive inspection of all components of the equipment, replace worn parts in a timely manner, and ensure that the equipment can operate normally; the operator uses the push frame 3 in conjunction with the casters 6 at the four corners of the support base plate 1 to push the equipment to the target work area, ensuring that the equipment is placed stably; check the connection status of each component, confirm the sealing connection of the feed pipe 7 and the mortar spraying box 2 through the flange connection plate 11, and adjust the support column between the feed pipe 7 and the support base plate 1 to ensure that the feed pipe 7 is stable and does not shake; then start the equipment self-test through the control box 4 on the push frame 3, and debug the operating status of the vibration motor 26, output motor 24, and spray generator 5, while checking whether the connecting valve pipe 13 and connecting pipe 14 of the temperature control adjustment component are unobstructed, ensuring that all components are operating normally, and preparing for subsequent mortar spraying operations.

[0030] Step two: Subsequently, the mortar raw material is poured into the inner hopper 12. The inner hopper 12 is precisely engaged with the limiting block 16 on the top wall of the hopper 9 via the limiting ring 17. The abutment seat 15 and its upper supporting rubber plate provide stable support and sealing for the inner hopper 12, preventing mortar leakage. The vibration motor 26 is started to drive the vibrating screen seat 10 to vibrate. The outer edge plate of the vibrating screen seat 10 is placed on the limiting block 16 to ensure stable vibration without deviation. The buffer spring 27 on the inner wall support plate 20 of the inner hopper 12 dampens the vibration of the vibrating screen seat 10, reducing vibration noise and structural damage. The vibrating screen seat 10 drives the sliding screen frame 29 to vibrate synchronously, screening the mortar. Impurities and hard lumps are intercepted on the screen plate 31, facilitating subsequent cleaning and preventing large particles from entering the feeding pipe 7 and causing blockage. At the same time, the vibration motor 26 is started. The output motor 24 drives the spiral stirring rod 25 to rotate, continuously stirring the sieving mortar. The arc-shaped top cover 23 prevents mortar from splashing and accumulating, avoids mortar solidification and segregation, and ensures mortar uniformity. The vibration energy of the vibrating screen is converted into high-frequency impact vibration force on the inner hopper 12 through the impact frequency conversion seat 35. On the basis of efficiently dispersing the mortar, it reduces the adhesion of mortar to the inner wall of the inner hopper 12, thereby reducing the adhesion, hanging and clumping of mortar materials on the inner hopper 12 wall from the root. At the same time, the double-layer shell structure of the hopper 9 and the inner hopper 12 forms a natural vibration isolation layer, which can effectively block the impact vibration of the inner hopper 12 from being transmitted to the hopper 9 and the whole machine, avoiding equipment shaking and component resonance caused by vibration diffusion, and greatly improving the overall stability and smoothness of the device operation.

[0031] Step 3: The temperature control adjustment components work synchronously. An external liquid heat source is connected through the connecting valve pipe 13 on the hopper 9. The temperature control medium enters the connecting pipe 14 through the connecting valve pipe 13. The connecting pipe 14 extends into the communicating cavity 21 on the outer wall of the inner hopper 12, and is arranged symmetrically up and down to achieve uniform circulation of the temperature control medium. The hopper 9 and the inner hopper 12 are pressed together to seal the communicating cavity 21, preventing leakage of the temperature control medium. The communicating cavity 21 surrounding the inner hopper 12 provides uniform temperature control for the mortar, preventing it from solidifying too quickly and improving the smoothness of the spraying. After the mixing and temperature control are qualified, the spray generator 5 is started. The mortar enters the hopper 9 through the inner hopper 12 and is then transported to the feeding nozzle 8 through the feeding pipe 7. The operator holds the feeding nozzle 8 and controls the spraying force and range according to the requirements of the inner wall roughening to complete the roughening spraying operation. Throughout the feeding process, the support column of the feeding pipe 7 ensures smooth feeding and prevents the feeding pipe 7 from shifting and affecting the spraying accuracy.

[0032] Step four, finally, the collision sensors 34, which are equidistantly installed on the screen frame connecting rod 32, work in real time to collect the signal of the screen frame connecting rod 32 vibrating with the sliding screen frame 29, and transmit the signal to the control box 4. When the sliding screen frame 29 experiences abnormalities such as material blockage, loose connection with the vibrating screen seat 10, displacement of the second limit pin seat 33 pin, or overload of the vibrating motor 26, the collision sensor 34 captures the signal exceeding the preset threshold, triggering an audible and visual warning in the control box 4. If necessary, the linkage equipment will be suspended to avoid damage to the sliding screen frame 29, the screen frame connecting rod 32, and blockage of the feeding pipe 7. After the operation is completed, all motors and the spray generator 5 are turned off. The inner bucket 12 is disassembled and cleaned by using the handle 18. The sliding screen frame 29 is pulled out to clean impurities. The connecting bolts 30 can be unscrewed to maintain the buffer spring 27. The rubber cover 28 can protect the connecting bolts 30 from being blocked by mortar. After cleaning, all parts are reset for easy use next time. The whole process takes into account both efficient spraying and convenient maintenance, ensuring the quality and efficiency of the interior wall roughening construction.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A spraying device for roughening interior walls, comprising a supporting base plate (1), a mortar spraying box (2) installed on the supporting base plate (1), and a spraying generator (5) installed on the top of the mortar spraying box (2); a feeding pipe (7) for conveying mortar is installed on the side end of the mortar spraying box (2), the feeding pipe (7) is connected to a feeding nozzle (8) for discharging mortar, and a hopper (9) is connected to the upper part of the feeding pipe (7); characterized in that, A vibrating screen base (10) is installed on the top of the hopper (9), and an inner hopper (12) is installed on the hopper (9). A temperature control adjustment component is provided between the hopper (9) and the inner hopper (12). Support plates (20) are symmetrically arranged on the inner wall of the inner hopper (12). Buffer springs (27) are installed on each support plate (20). Connecting bolts (30) are installed on the vibrating screen base (10) at the position corresponding to the buffer springs (27). The end of the buffer spring (27) away from the support plate (20) abuts against the vibrating screen base (10) and is connected to the connecting bolts (30). An impact frequency converter seat (35) is installed at the lower end of the supporting plate (20). A high-damping vibration damping pad (37) is provided at the top of the impact frequency converter seat (35) located at the lower end of the buffer spring (27). A transmission block (36) is provided on the high-damping vibration damping pad (37). The lower end of the transmission block (36) extends into the impact frequency converter seat (35). A frequency tuning spring (38) that cooperates with the transmission block (36) is provided in the impact frequency converter seat (35). An impact block (39) is slidably provided at the bottom end of the impact frequency converter seat (35). One end of the frequency tuning spring (38) is connected to the transmission block (36), and the other end of the frequency tuning spring (38) is connected to the impact block (39). The end of the impact block (39) abuts against the inner bucket (12).

2. The spraying equipment for interior wall roughening as described in claim 1, characterized in that, The temperature control and adjustment component includes a connecting cavity (21); the outer wall of the inner hopper (12) is provided with several annular connecting cavities (21) from top to bottom, and the several connecting cavities (21) are connected to form a temperature control cavity surrounding the inner hopper (12); the hopper (9) abuts against and presses against the inner hopper (12) and seals the connecting cavity (21); the connecting cavity (21) maintains the set temperature of the inner hopper (12) through an external liquid heat source.

3. The spraying equipment for interior wall roughening as described in claim 2, characterized in that, The temperature control adjustment assembly also includes a connecting pipe (14) and a connecting valve pipe (13); two connecting pipes (14) are installed on the hopper (9), and the two connecting pipes (14) extend into the connecting cavity (21) at the upper and lower ends respectively; two connecting valve pipes (13) are connected to the hopper (9), and the two connecting valve pipes (13) are connected to the two connecting pipes (14) respectively.

4. The spraying equipment for interior wall roughening as described in claim 1, characterized in that, The bottom of the hopper (9) is provided with abutment seat (15) for abutting and supporting the inner hopper (12), and the upper layer of the abutment seat (15) is provided with a supporting rubber plate that is pressed and sealed to the bottom of the end of the inner hopper (12).

5. A spraying equipment for interior wall roughening as described in claim 1, characterized in that, Multiple limiting blocks (16) are symmetrically arranged on the top wall of the hopper (9), and multiple limiting rings (17) that cooperate and engage with the limiting blocks (16) are provided on the inner hopper (12). The limiting blocks (16) and the limiting rings (17) engage and position each other to achieve quick alignment and installation of the inner hopper (12) and the hopper (9). The outer edge plate of the vibrating screen seat (10) is covered on the limiting blocks (16), and the screen frame of the vibrating screen seat (10) is located in the inner hopper (12).

6. The spraying equipment for interior wall roughening according to claim 1, characterized in that, A vibrating motor (26) is installed on the vibrating screen base (10). A sliding screen frame (29) is installed on the inner wall of the screen frame of the vibrating screen base (10). Four screen frame connecting rods (32) are provided on the sliding screen frame (29). Four second limit pin seats (33) are installed on the outer edge plate of the vibrating screen base (10). The pin structure of the second limit pin seat (33) is fixedly extended in the screen frame connecting rod (32).

7. A shotcrete equipment for interior wall roughening as described in claim 6, characterized in that, A screen plate (31) is installed in the middle of the sliding screen frame (29). The bottom of the screen plate (31) is lower than the screen frame wall of the vibrating screen seat (10). The edge layer of the sliding screen frame (29) is flush with the screen frame wall of the vibrating screen seat (10).

8. A spraying equipment for roughening interior walls according to claim 6, characterized in that, Multiple collision sensors (34) are installed at equal intervals on the screen frame connecting rod (32); a control box (4) is installed on the mortar spraying box (2); during operation, the collision sensor (34) collects the signal of the vibration of the screen frame connecting rod (32) as the screen frame (29) slides, and transmits the signal to the control box (4).

9. A spraying equipment for interior wall roughening as described in claim 1, characterized in that, The inner wall of the inner hopper (12) is symmetrically provided with four first limit pin seats (19). A support rod (22) is provided between two opposite first limit pin seats (19). The centers of the two support rods (22) intersect each other and a circular arc top cover (23) is fixedly provided at the intersection. An output motor (24) is installed at the lower end of the circular arc top cover (23). A spiral stirring rod (25) is installed on the output shaft of the output motor (24).

10. A shotcrete equipment for interior wall roughening according to claim 1, characterized in that, Two handles (18) are symmetrically provided on the inner hopper (12); a rubber cover (28) is provided on the top of the connecting bolt (30); four casters (6) are installed at the bottom corners of the supporting base plate (1); one end of the feeding pipe (7) is connected to a flange connecting plate (11) that is sealed to the mortar spraying box (2), and a support column is provided between the feeding pipe (7) and the supporting base plate (1).

Images