A slope concrete spraying device
By designing a storage hopper, a spreading component, and a mixing rod structure in the concrete spraying device, uniform spreading of the quick-setting agent and convenient movement of the device are achieved, solving the problems of poor uniformity of the quick-setting agent and inconvenience in movement, thus improving concrete quality and spraying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN TIANJIU CONSTR ENG CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-14
AI Technical Summary
Existing concrete spraying equipment cannot evenly add quick-setting agent to concrete during slope construction, affecting concrete quality. Furthermore, the equipment is inconvenient to move and has poor spraying convenience.
A slope concrete spraying device was designed, which adopts a structure of storage hopper, spreading component and mixing rod. The device achieves uniform spreading of quick-setting agent through motor and gear transmission, and the device can be easily moved through pump and roller structure.
It achieves uniform addition of quick-setting agent to concrete, improves concrete quality, and the device is easy to move, thus improving the efficiency of slope spraying.
Smart Images

Figure CN224495131U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete spraying technology, specifically a slope concrete spraying device. Background Technology
[0002] Shotcrete is a construction method that uses a pressure spray gun to spray pre-mixed concrete material onto the surface of rocks or concrete using high-pressure air. Shotcrete equipment is required during the pouring of slopes.
[0003] A Chinese patent with authorization announcement number CN 117823191 B discloses a low-dust concrete spraying device, relating to the field of spraying machine technology. The device includes a main structure comprising a spraying device body, a box fixedly mounted on one side of the body, and a cover plate snapped onto one side of the box. The box contains a dust-reducing mechanism, including a storage and feeding unit and a humidification unit. The box also contains a percussion feeding mechanism. This low-dust concrete spraying device, through the coordinated use of the storage and feeding unit, the percussion feeding mechanism, and the humidification unit, prevents the generation of large amounts of dust when the mixture of cement powder and sand mixed with water enters the inner cavity of the spraying device body's feed inlet. Furthermore, operators do not need to continuously use a shovel to feed the cement powder and sand mixture into the inner cavity of the spraying device body's feed inlet, thus avoiding the shovel from stirring up the mixture and generating dust, ensuring operator safety.
[0004] Existing concrete spraying equipment adds accelerators to the concrete to ensure rapid setting when spraying it on slopes. However, the accelerators cannot be added evenly to the concrete, resulting in poor uniformity and affecting the quality of the concrete. Therefore, a new concrete spraying equipment for slopes is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes a slope concrete spraying device.
[0006] The technical solution adopted by this utility model to solve its technical problem is a slope concrete spraying device, including a base, a control panel mounted on the base, a guide plate mounted on the base, a groove formed in the guide plate, a slider assembled in the groove, a sliding frame mounted on the slider, a storage hopper mounted on the sliding frame via a fixed frame, a discharge pipe mounted at the bottom of the storage hopper, a solenoid valve mounted on the discharge pipe, a connecting pipe rotatably connected to the discharge pipe, a spreading component mounted on the bottom side of the connecting pipe, a guide block fixedly mounted on the bottom plate of the spreading component, multiple sets of spreading holes formed on the bottom plate of the spreading component, a first motor fixedly mounted on the sliding frame, a first gear mounted on the output shaft of the first motor, a second gear fixedly sleeved on the outer wall of the connecting pipe, the second gear meshing with the first gear, and a stepper mounted on the side wall of the guide plate via a machine base. The stepper motor has a lead screw mounted on its output shaft, which is rotatably mounted on the inner wall of the slide groove. A fixed seat is mounted on the base, and a mixing hopper is mounted on the fixed seat. A discharge port is opened on the bottom side of the mixing hopper. A drive motor is installed inside the fixed seat, and a stirring rod is mounted on the output shaft of the drive motor. A spiral blade is mounted on the stirring rod, which is rotatably mounted on the inner wall of the mixing hopper. The accelerator in the storage hopper enters the spreading device through the discharge pipe. The spreading device rotates, and the accelerator inside it is sprayed out from multiple sets of spreading holes, evenly spreading the accelerator on the concrete. Through the rotation of the spiral blade, the spiral blade continuously pushes the concrete from below to above, causing the concrete to circulate in the mixing hopper, ensuring that the accelerator is evenly spread in the concrete. This structure can evenly add the accelerator into the concrete, which is beneficial to improving the uniformity of the accelerator in the concrete.
[0007] Preferably, a pump is installed inside the fixed base. One end of the pump is connected to a guide pipe through an internal pipeline. The guide pipe is fixedly installed on the bottom side of the fixed base. The other end of the pump is connected to the discharge port of the mixing hopper through an internal pipeline. A mounting frame is symmetrically installed on the side wall of the base. Two sets of rollers are rotatably installed on the mounting frame. A handle is installed on the side wall of the base. By pushing the handle, the two sets of rollers roll on the ground, realizing the overall movement of the device. The device can be easily moved as needed. By fixing the conveying pipe and the guide pipe together, the pump guides the concrete into the conveying pipe and then sprays it out from the conveying pipe. The concrete mixed with the quick-setting agent will solidify quickly after being sprayed onto the slope, realizing convenient grouting of the slope and improving the convenience of slope grouting.
[0008] The advantages of this utility model are:
[0009] 1. This utility model uses a accelerator in the storage hopper to enter the spreading device through the discharge pipe. As the spreading device rotates, the accelerator inside is sprayed out from multiple spreading holes, evenly spreading the accelerator on the concrete. Through the rotation of the spiral blades, the spiral blades continuously push the concrete from below to above, causing the concrete to circulate within the mixing hopper, ensuring that the accelerator is evenly spread in the concrete. This structure can evenly add the accelerator into the concrete, which is beneficial to improving the uniformity of the accelerator in the concrete.
[0010] 2. This utility model utilizes a pump to guide concrete into a delivery pipe, from which it is then sprayed out. The concrete, mixed with a quick-setting agent, solidifies rapidly after being sprayed onto the slope, enabling convenient grouting of the slope and improving the ease of grouting. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a first-person perspective 3D structural diagram;
[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the guide plate;
[0014] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the material spreading component;
[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the material spreading component;
[0016] Figure 5 This is a schematic diagram of the three-dimensional structure inside the mixing hopper.
[0017] In the diagram: 1. Base; 2. Control panel; 3. Guide plate; 4. Slide groove; 5. Stepper motor; 6. Lead screw; 7. Slider; 8. Sliding frame; 9. Storage hopper; 10. Discharge pipe; 11. Solenoid valve; 12. Connecting pipe; 13. Spreading component; 14. Guide block; 15. Spreading hole; 16. First motor; 17. First gear; 18. Second gear; 19. Fixed base; 20. Mixing hopper; 21. Stirring rod; 22. Spiral blade; 23. Guide pipe; 24. Mounting frame; 25. Roller. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0019] Please see Figure 1-5As shown, a slope concrete spraying device includes a base 1, a control panel 2 mounted on the base 1, a guide plate 3 mounted on the base 1, a groove 4 formed in the guide plate 3, a slider 7 assembled in the groove 4, a sliding frame 8 mounted on the slider 7, a storage hopper 9 mounted on the sliding frame 8 via a fixed frame, a discharge pipe 10 mounted at the bottom of the storage hopper 9, a solenoid valve 11 mounted on the discharge pipe 10, a connecting pipe 12 rotatably connected to the discharge pipe 10, a spreading component 13 mounted on the bottom side of the connecting pipe 12, a guide block 14 fixedly mounted on the bottom plate of the spreading component 13, multiple sets of spreading holes 15 formed on the bottom plate of the spreading component 13, a first motor 16 fixedly mounted on the sliding frame 8, and a first gear mounted on the output shaft of the first motor 16. 17. A second gear 18 is fixedly sleeved on the outer wall of the connecting pipe 12. The second gear 18 meshes with the first gear 17. A stepper motor 5 is mounted on the side wall of the guide plate 3 via a base. A lead screw 6 is mounted on the output shaft of the stepper motor 5. The lead screw 6 is rotatably mounted on the inner wall of the slide groove 4. A fixed seat 19 is mounted on the base 1. A mixing hopper 20 is mounted on the fixed seat 19. A discharge port is opened on the bottom side of the mixing hopper 20. A drive motor is installed inside the fixed seat 19. A stirring rod 21 is mounted on the output shaft of the drive motor. A spiral blade 22 is mounted on the stirring rod 21. The stirring rod 21 is rotatably mounted on the inner wall of the mixing hopper 20. During operation, the existing concrete spraying device, when spraying grout on the slope, in order to ensure that the concrete can be quickly... During the setting process, an accelerator is added to the concrete. However, due to the inability to evenly distribute the accelerator throughout the concrete, its uniformity is poor, affecting the concrete quality. To address this, concrete is poured into the mixing hopper 20. The control panel 2 then controls the stepper motor 5, which in turn rotates the lead screw 6. The lead screw 6 moves the slider 7 horizontally, which in turn moves the sliding frame 8 horizontally. The sliding frame 8 then moves the storage hopper 9 horizontally, positioning it directly above the mixing hopper 20. The storage hopper 9 contains the accelerator. The control panel 2 then opens the solenoid valve 11, allowing the accelerator in the storage hopper 9 to flow from the discharge pipe 10 into the spreading device 13. Simultaneously, the first motor 16... The operation drives the first gear 17 to rotate, which in turn drives the second gear 18 to rotate. The second gear 18 then drives the connecting pipe 12 to rotate, which in turn drives the spreading component 13 to rotate. During the rotation of the spreading component 13, the accelerator inside is sprayed out from multiple spreading holes 15, evenly spreading the accelerator onto the concrete. The operation of the drive motor drives the mixing rod 21 to rotate, which in turn drives the spiral blades 22 on it to rotate. The spiral blades 22 continuously push the concrete from below to the top, causing the concrete to circulate within the mixing hopper 20, ensuring that the accelerator is evenly spread throughout the concrete. This structure can evenly add the accelerator into the concrete, which helps to improve the uniformity of the accelerator in the concrete.
[0020] Please see Figure 1As shown, a pump is installed inside the fixed base 19. One end of the pump is connected to a guide pipe 23 through an internal pipe. The guide pipe 23 is fixedly installed on the bottom side of the fixed base 19. The other end of the pump is connected to the discharge port of the mixing hopper 20 through an internal pipe. A mounting frame 24 is symmetrically installed on the side wall of the base 1. Two sets of rollers 25 are rotatably installed on the mounting frame 24. A handle 26 is installed on the side wall of the base 1. During operation, the existing concrete spraying device cannot be easily moved according to the needs of use when spraying grout on the slope, resulting in poor spraying convenience. By pushing the handle 26, the two sets of rollers 25 roll on the ground, realizing the overall movement of the device. The device can be easily moved according to the needs. By fixing the conveying pipe to the guide pipe 23, the pump guides the concrete into the conveying pipe and then sprays it out from the conveying pipe. The concrete mixed with the quick-setting agent will solidify quickly after being sprayed on the slope, realizing convenient spraying of the slope and improving the convenience of slope spraying.
[0021] Working principle: Existing concrete spraying devices add accelerators to the concrete to ensure rapid setting when spraying it onto slopes. However, due to the inability to evenly distribute the accelerator, the uniformity of the accelerator in the concrete is poor, affecting the quality of the concrete. Concrete is poured into the mixing hopper 20, and then the control panel 2 controls the stepper motor 5 to operate. The stepper motor 5 drives the lead screw 6 to rotate, which in turn drives the slider 7 to move horizontally. The slider 7 drives the sliding frame 8 to move horizontally, which in turn drives the storage hopper 9 to move horizontally, placing the storage hopper 9 directly above the mixing hopper 20. The storage hopper 9 contains the accelerator. The control panel 2 then opens the solenoid valve 11, allowing the accelerator in the storage hopper 9 to enter the spreading component 13 through the discharge pipe 10. Simultaneously, the first motor 16 operates, driving the first gear 17 to rotate. The first gear 17 drives the second gear 18 to rotate, which in turn drives the connecting pipe 12 to rotate. The connecting pipe 12 then drives the spreading component 13 to rotate. During the rotation of the spreading component 13, the accelerator inside... The quick-setting agent is sprayed out from multiple sets of sprinkling holes 15, evenly spreading the quick-setting agent on the concrete. The drive motor rotates the mixing rod 21, which in turn rotates the spiral blades 22. The spiral blades 22 continuously push the concrete upwards, creating a circulating flow within the mixing hopper 20, ensuring the quick-setting agent is evenly distributed throughout the concrete. This structure allows for the uniform addition of the quick-setting agent to the concrete, improving its uniformity. Existing concrete spraying devices cannot be easily moved according to usage needs when spraying slopes, resulting in poor spraying convenience. By pushing the handle 26, two sets of rollers 25 roll on the ground, enabling the entire device to be moved easily as needed. By fixing the delivery pipe to the guide pipe 23, the pump guides the concrete into the delivery pipe, which then sprays it out. The concrete mixed with the quick-setting agent solidifies rapidly after being sprayed onto the slope, achieving convenient slope spraying and improving its overall ease of use.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A slope concrete spraying device, characterized in that: The system includes a base (1), a control panel (2) mounted on the base (1), a guide plate (3) mounted on the base (1), a groove (4) formed in the guide plate (3), a slider (7) fitted in the groove (4), a sliding frame (8) mounted on the slider (7), a storage hopper (9) mounted on the sliding frame (8) via a fixed frame, a discharge pipe (10) mounted at the bottom of the storage hopper (9), a solenoid valve (11) mounted on the discharge pipe (10), and a rotatable connection to the periphery of the discharge pipe (10). A connecting pipe (12) is provided with a material spreading component (13) installed on its bottom side. A material guiding block (14) is fixedly installed on the bottom plate of the material spreading component (13). Multiple sets of material spreading holes (15) are opened on the bottom plate of the material spreading component (13). A first motor (16) is fixedly installed on the sliding frame (8). A first gear (17) is installed on the output shaft of the first motor (16). A second gear (18) is fixedly sleeved on the outer wall of the connecting pipe (12). The second gear (18) meshes with the first gear (17).
2. The slope concrete spraying device according to claim 1, characterized in that: A stepper motor (5) is mounted on the side wall of the guide plate (3) via a base. A lead screw (6) is mounted on the output shaft of the stepper motor (5). The lead screw (6) is rotatably mounted on the inner wall of the slide groove (4).
3. The slope concrete spraying device according to claim 1, characterized in that: A fixed seat (19) is installed on the base (1), and a mixing hopper (20) is installed on the fixed seat (19). The mixing hopper (20) has a discharge port on its bottom side.
4. A slope concrete spraying device according to claim 3, characterized in that: The fixed base (19) is equipped with a drive motor, and a stirring rod (21) is installed on the output shaft of the drive motor. A spiral blade (22) is installed on the stirring rod (21), and the stirring rod (21) is rotatably installed on the inner wall of the mixing hopper (20).
5. A slope concrete spraying device according to claim 3, characterized in that: A pump is installed inside the fixed base (19). One end of the pump is connected to a guide pipe (23) through an internal pipe. The guide pipe (23) is fixedly installed on the bottom side of the fixed base (19). The other end of the pump is connected to the discharge port of the mixing hopper (20) through an internal pipe.
6. A slope concrete spraying device according to claim 1, characterized in that: The base (1) has symmetrical mounting brackets (24) on its side wall, and two sets of rollers (25) are rotatably mounted on the mounting brackets (24). The base (1) has handles (26) on its side wall.