Concrete spraying device
By introducing a dual-axis motor-driven track and steering assembly into the concrete spraying device, the problems of automatic movement and nozzle adjustment of the spraying device were solved, achieving smooth movement of the device and uniform spraying, and improving operational safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ENENG GRP THIRD ENG BUREAU CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-29
AI Technical Summary
Existing concrete spraying equipment cannot move automatically, resulting in unstable nozzles, dust entering the operator's body, and the inability to adjust the spray angle and height, leading to uneven spraying.
The system uses a dual-axis motor to drive the track movement, combined with steering and mounting components, to achieve automatic movement of the spraying device and adjustment of the nozzle angle and height. Limiting plates and positioning rings ensure movement stability and angle accuracy.
It enables automatic movement of the spraying device and flexible adjustment of the nozzle angle and height, improving the stability and uniformity of spraying, preventing dust from entering, and enhancing the safety and efficiency of operation.
Smart Images

Figure CN224293682U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of concrete spraying technology, and specifically relates to concrete spraying devices. Background Technology
[0002] A concrete spraying device is a device that uses high-pressure airflow generated by an air compressor to spray concrete mixture from a concrete spraying machine (comprising a concrete spraying machine, air compressor, spray gun, and conveying pipe) onto the surface to be sprayed at high speed, thereby achieving functions such as protection, reinforcement, or shaping.
[0003] Current concrete spraying equipment cannot automatically move the spraying device during use, which makes it impossible to ensure the stability of the nozzle and allows dust to enter the human body during spraying. In addition, the spraying angle and spraying height cannot be adjusted during use, resulting in uneven spraying surface due to improper manual operation. Summary of the Invention
[0004] The purpose of this utility model is to address a concrete spraying device, the advantages of which are that it automatically moves the spraying device during use and adjusts the spraying angle and spraying height of the nozzle during use.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a concrete spraying device, including a load-bearing frame, with dual-shaft motors installed at both ends of the bottom of the load-bearing frame. The two output ends of the dual-shaft motors extend to the outside of the load-bearing frame and are fixedly connected to transmission wheels. Tracks are wound around the two transmission wheels located on the same side of the load-bearing frame. A steering assembly is fixedly installed on the top of the load-bearing frame. The steering assembly includes a connecting plate. Two vertically upward-extending positioning shells are fixedly installed on one side of the connecting plate. A motor is fixedly installed at the bottom of each of the two positioning shells. A threaded rod rotatably supported inside the positioning shell is connected to the top of the output end of the motor. A threaded sleeve is threadedly connected to the surface of the threaded rod. An installation assembly is installed on both threaded sleeves. The installation assembly is located outside the positioning shell.
[0006] Using the above technical solution: When the user needs to automatically move the spraying device during use, the user turns on two dual-axis motors to rotate. The dual-axis motors drive the tracks through transmission wheels, and with the help of limit plates to prevent derailment, the tracks rotate while driving the load-bearing frame to move. As the load-bearing frame moves, it drives the structure connected to it to move synchronously, thereby completing the automatic movement of the spraying device during use.
[0007] The above technical solution is adopted in which limit plates are fixedly installed at both ends of the transmission wheel, and the track is located between the two limit plates at both ends of the transmission wheel.
[0008] The present invention is further configured to limit and protect the track by means of a limiting plate, so as to prevent the track from derailing or deviating during rotation, ensuring that the automatic movement of the device is smooth and reliable, and improving the movement stability.
[0009] The present invention is further configured such that the steering assembly includes a limiting shell, one end of which is fixedly mounted with a second motor, the output end of which is connected to a rotating shaft rotatably supported inside the limiting shell, and multiple positioning plates are fixedly mounted on the rotating shaft. A portion of the positioning plates extends outward through the limiting shell on the side away from the rotating shaft, while another portion of the positioning plates contacts and cooperates with the inner wall of the limiting shell. The limiting shell is provided with an arc-shaped groove for the positioning plates to rotate, and connecting plates are fixed together on the multiple positioning plates.
[0010] By adopting the above technical solution, the spray angle of the spray gun can be quickly adjusted by setting the limit shell, motor 2, positioning plate and connecting plate in the steering component. The spray angle of the spray gun can be continuously adjusted to adapt to wall spraying operations with different tilt angles.
[0011] The present invention is further configured such that positioning rings are fixed on the inner walls of both ends of the limiting shell, and positioning plates located at both ends of the limiting shell respectively rub against the two positioning rings.
[0012] The above technical solution involves setting a positioning ring, which allows the positioning plate to move in a ring shape, thereby positioning the rotational position of the positioning plate and preventing it from shifting during use, which would affect the spraying of walls at different angles.
[0013] The present invention is further configured such that the mounting assembly includes a retaining plate mounted together on two threaded sleeves, a retaining shell one fixedly connected to the side of the retaining plate near the steering assembly, and a retaining shell two movably connected to the top left side of the retaining shell one via a shaft pin, the retaining shell two and the retaining shell one together forming a tubular structure.
[0014] By adopting the above technical solution, through the coordinated installation of the retaining plate, retaining shell one, and retaining shell two in the installation assembly, the spray gun can be quickly installed when the user needs to spray the wall, making it convenient to spray the wall.
[0015] The present invention is further configured such that both the first and second fixed housings are fixedly connected with locking blocks, and the mounting assembly also includes fasteners that jointly clamp the two locking blocks.
[0016] The above technical solution involves locking the locking block and the limiting shell together. This allows the fixing shells to be secured when the user installs the nozzle using fixing shell one and fixing shell two, preventing them from falling off during use and affecting the fixation of the nozzle.
[0017] When the user needs to adjust the spray angle of the nozzle, after installing the spray gun through the mounting assembly, the user starts motor two. Motor two drives the rotating shaft to rotate, which in turn drives the positioning plate to rotate synchronously. The positioning plate drives the connecting plate to rotate outside the limiting shell. While the connecting plate rotates, it also drives the positioning shell and the structure connected to it to move in a circle, thereby completing the quick adjustment of the spray angle of the nozzle. If the user needs to adjust the spray height of the nozzle, after installing the spray gun through the mounting assembly, the user starts motor one. Motor one drives the mounting assembly to rise and fall through the threaded connection of the threaded rod and threaded sleeve. When the mounting assembly rises and falls, the nozzle fixed to it rises and falls synchronously, thereby completing the adjustment of the spray height of the nozzle.
[0018] In summary, this utility model has the following beneficial effects:
[0019] 1. When the user needs to move the spraying device automatically during use, the user installs the spray gun through the mounting assembly, and then turns on the two dual-axis motors to rotate. The dual-axis motors drive the tracks through the transmission wheels, and with the help of the limit plate to prevent derailment, the tracks rotate while driving the load-bearing frame to move. As the load-bearing frame moves, it drives the structure connected to it to move synchronously, thereby completing the automatic movement of the spraying device during use.
[0020] 2. When the user needs to adjust the spray angle of the nozzle, after installing the spray gun through the mounting assembly, the user starts motor two. Motor two drives the rotating shaft to rotate, which in turn drives the positioning plate to rotate synchronously. The positioning plate drives the connecting plate to rotate outside the limiting shell. While the connecting plate rotates, it also drives the positioning shell and the structure connected to it to move in a circle, thereby completing the rapid adjustment of the spray angle of the nozzle. If the user needs to adjust the spray height of the nozzle, after installing the spray gun through the mounting assembly, the user starts motor one. Motor one drives the mounting assembly to rise and fall through the threaded connection of the threaded rod and threaded sleeve. When the mounting assembly rises and falls, the nozzle fixed to it rises and falls synchronously, thereby completing the adjustment of the spray height of the nozzle. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a partial structural bottom view of this utility model;
[0023] Figure 3 This is a right-side sectional view of a partial structure of this utility model;
[0024] Figure 4 This is a front sectional view of the steering component of this utility model;
[0025] Figure 5 This is a top view of the mounting components of this utility model.
[0026] Reference numerals: 1. Load-bearing frame; 2. Dual-axis motor; 3. Drive wheel; 4. Track; 5. Steering assembly; 501. Limiting shell; 502. Motor II; 503. Positioning plate; 504. Connecting plate; 505. Positioning ring; 6. Positioning shell; 7. Motor I; 8. Threaded rod; 9. Threaded sleeve; 10. Mounting assembly; 1001. Fixing plate; 1002. Fixing shell I; 1003. Fixing shell II; 1004. Locking block; 1005. Fastener; 11. Limiting plate. Detailed Implementation
[0027] The present invention will be further described in detail below with reference to the accompanying drawings. Example
[0028] Referring to Figures 1 and 2, the concrete spraying device includes a load-bearing frame 1. Two dual-shaft motors 2 are installed at both ends of the bottom of the load-bearing frame 1. The two output ends of the dual-shaft motors 2 extend to the outside of the load-bearing frame 1 and are fixedly connected to transmission wheels 3. Tracks 4 are wound around the two transmission wheels 3 located on the same side of the load-bearing frame 1.
[0029] Furthermore, limit plates 11 are fixedly installed at both ends of the transmission wheel 3, and the track 4 is located between the two limit plates 11 at both ends of the transmission wheel 3.
[0030] Brief description of the usage process: When the user needs to automatically move the spraying device, the user turns on the two dual-axis motors 2 to rotate. The dual-axis motors 2 drive the transmission wheel 3 to rotate, thereby causing the track 4 to rotate. As the track 4 rotates, it drives the load-bearing frame 1 to move. As the load-bearing frame 1 moves, it drives the structure connected to it to move synchronously, thus completing the automatic movement of the spraying device during use. The track 4 is limited and protected by the limiting plate 11 to prevent the track 4 from derailing or deviating during rotation, ensuring that the automatic movement of the device is smooth and reliable and improving the stability of movement. Example
[0031] Referring to Figures 1, 2, 3, and 4, the concrete spraying device includes a load-bearing frame 1. A steering assembly 5 is fixedly installed on the top of the load-bearing frame 1. The steering assembly 5 includes a connecting plate 504. Two vertically extending positioning shells 6 are fixedly installed on one side of the connecting plate 504. A motor 7 is fixedly installed on the bottom of each of the two positioning shells 6. A threaded rod 8, which is rotatably supported inside the positioning shell 6, is connected to the top of the output end of the motor 7. A threaded sleeve 9 is threadedly connected to the surface of the threaded rod 8. A through groove extending to both ends of the positioning shell 6 is opened on the side of the positioning shell 6 away from the connecting plate 504. An installation assembly 10 is fixedly installed on both threaded sleeves 9. The installation assembly 10 is located outside the positioning shell 6.
[0032] Furthermore, the steering assembly 5 also includes a limiting shell 501. A second motor 502 is fixedly installed at one end of the limiting shell 501. The output end of the second motor 502 is connected to a rotating shaft that is rotatably supported inside the limiting shell 501. Multiple positioning plates 503 are fixedly installed on the rotating shaft. A portion of the positioning plates 503 extend outward through the limiting shell 501 on the side away from the rotating shaft, while another portion of the positioning plates 503 contacts and cooperates with the inner wall of the limiting shell 501. An arc-shaped groove for the positioning plates 503 to rotate is provided on the limiting shell 501, and a connecting plate 504 is fixedly fixed on the multiple positioning plates 503.
[0033] Furthermore, positioning rings 505 are fixed on the inner walls of both ends of the limiting shell 501, and positioning plates 503 located at both ends of the limiting shell 501 are in frictional engagement with the two positioning rings 505 respectively.
[0034] Furthermore, the mounting assembly 10 includes a retaining plate 1001 that is mounted on two threaded sleeves 9. A retaining shell 1002 is fixedly connected to the side of the retaining plate 1001 near the steering assembly 5. A retaining shell 2 1003 is movably connected to the top left side of the retaining shell 1002 via a pivot pin. The retaining shell 2 1003 and the retaining shell 1 1002 together form a tubular structure.
[0035] Furthermore, both the first retaining shell 1002 and the second retaining shell 1003 are fixedly connected with a locking block 1004, and the mounting assembly 10 also includes a fastener 1005 that clamps the two locking blocks 1004 together.
[0036] Brief description of usage: When the user needs to adjust the spray angle of the nozzle, after installing the spray gun through the mounting assembly 10, the user starts the second motor 502. The second motor 502 drives the rotating shaft to rotate, which in turn drives the positioning plate 503 to rotate synchronously. The positioning plate 503 drives the connecting plate 504 to rotate outside the limiting shell 501. At the same time, the rotation of the connecting plate 504 drives the positioning shell 6 and the structure connected to it to rotate, thereby completing the quick adjustment of the spray angle of the nozzle. If the user needs to adjust the spray height of the nozzle, after installing the spray gun through the mounting assembly 10, the user starts the first motor 7. The first motor 7 drives the mounting assembly 10 to rise and fall through the threaded connection of the threaded rod 8 and the threaded sleeve 9. When the mounting assembly 10 rises and falls, the nozzle fixed to it rises and falls synchronously, thereby completing the adjustment of the spray height of the nozzle. Through the coordinated action of the limiting shell 501, motor 502, positioning plate 503, and connecting plate 504 in the steering assembly 5, the spray angle of the spray gun can be quickly adjusted, facilitating rapid changes in the spray angle when dealing with walls at different angles. By setting a positioning ring 505, the positioning plate 503 can drive the connecting plate 504 to move in a ring, positioning the rotational position of the positioning plate 503 and preventing it from shifting during use, which would affect spraying walls at different angles. The fixing plate 1 in the installation assembly 10... The coordinated use of retaining shell 1002 and retaining shell 2 1003 allows for quick installation of the spray gun when the user needs to spray the wall, facilitating wall spraying. The locking mechanism of the locking block 1004 and the limiting shell 501 secures retaining shell 1002 and retaining shell 2 1003 when the user installs the nozzle, preventing them from falling off during use and affecting the nozzle's stability.
[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A concrete spraying device, including a load-bearing frame (1), characterized in that: Dual-axis motors (2) are installed at both ends of the bottom of the load-bearing frame (1). The two output ends of the dual-axis motors (2) extend through the outside of the load-bearing frame (1) and are fixedly connected to transmission wheels (3). Tracks (4) are wound around the two transmission wheels (3) on the same side of the load-bearing frame (1). A steering assembly (5) is fixedly installed on the top of the load-bearing frame (1). The steering assembly (5) includes a connecting plate (504). Two vertically extending positioning shells (6) are fixedly installed on one side of the connecting plate (504). A motor (7) is fixedly installed at the bottom of the two positioning shells (6). A threaded rod (8) is rotatably supported in the positioning shell (6) at the top of the output end of the motor (7). A threaded sleeve (9) is threadedly connected to the surface of the threaded rod (8). An installation assembly (10) is installed on the two threaded sleeves (9). The installation assembly (10) is located outside the positioning shell (6).
2. The concrete spraying device according to claim 1, characterized in that: Both ends of the drive wheel (3) are fixedly installed with limit plates (11), and the track (4) is located between the two limit plates (11) at both ends of the drive wheel (3).
3. The concrete spraying device according to claim 1, characterized in that: The steering assembly (5) also includes a limiting shell (501). One end of the limiting shell (501) is fixedly installed with a second motor (502). The output end of the second motor (502) is connected to a rotating shaft that is rotatably supported inside the limiting shell (501). Multiple positioning plates (503) are fixedly installed on the rotating shaft. A portion of the positioning plates (503) extend outward through the limiting shell (501) on the side away from the rotating shaft. Another portion of the positioning plates (503) are in contact with the inner wall of the limiting shell (501). An arc-shaped groove for the positioning plates (503) to rotate is provided on the limiting shell (501). A connecting plate (504) is fixed together on multiple positioning plates (503).
4. The concrete spraying device according to claim 3, characterized in that: Positioning rings (505) are fixed on the inner walls of both ends of the limiting shell (501), and the positioning plates (503) located at both ends of the limiting shell (501) are in frictional engagement with the two positioning rings (505).
5. The concrete spraying device according to claim 1, characterized in that: The mounting assembly (10) includes a retaining plate (1001) mounted on two threaded sleeves (9). The retaining plate (1001) is fixedly connected to a retaining shell one (1002) on the side near the steering assembly (5). The top left side of the retaining shell one (1002) is movably connected to a retaining shell two (1003) via a shaft pin. The retaining shell two (1003) and the retaining shell one (1002) together form a tubular structure.
6. The concrete spraying device according to claim 5, characterized in that: Both the first retaining shell (1002) and the second retaining shell (1003) are fixedly connected with a locking block (1004), and the mounting assembly (10) also includes a fastener (1005) that clamps the two locking blocks (1004) together.