Spraying angle adjusting device for sprayed concrete

Abstract

The utility model belongs to the technical field of sprayed concrete, and particularly relates to a sprayed concrete spraying angle adjusting device which comprises a mounting box body, a rotating rod is rotationally connected to the inner bottom of the mounting box body, and a first gear is mounted and connected to the top end of the rotating rod. According to the concrete spraying device, the rotating rod, the first gear, the telescopic rod, the mounting rod, the second gear, a supporting block, a spring, a notch, a pedal, a fixing plate, universal wheels and a movable push rod are used in cooperation, so that a worker can rapidly adjust and fix the angle of a spray head for spraying concrete when using the device; and a worker can use the device more conveniently. According to the utility model, the problems that a worker cannot adjust and fix the angle of the spray head for spraying concrete and cannot fix different types of spray heads for spraying concrete are solved, so that the effects of adjusting and fixing the angle of the spray head for spraying concrete and fixing different types of spray heads for spraying concrete are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of shotcrete technology, specifically relating to a shotcrete spraying angle adjustment device. Background Technology

[0002] Shotcrete is a construction method that uses a pressure spray gun to apply and pour fine aggregate concrete. It is commonly used for pouring linings for thin-walled structures such as tunnel linings, walls, and ceilings, as well as for the protective layer of steel structures. Shotcrete is formed by loading pre-mixed cement, sand, gravel, water, and a certain amount of admixtures into a shotcrete machine, using high-pressure air to deliver the mixture to the shotcrete nozzle, where it is mixed with an accelerator and sprayed at high speed onto the surface of rock or concrete.

[0003] Chinese patent publication number CN221722815U discloses an adjustment device for concrete spraying, including a connector connected to a discharge pipe, a conical cavity connected to the connector, and an eccentric outlet end of the conical cavity; the outlet end of the conical cavity is provided with an adjustment structure with an eccentric hole for adjusting the outlet diameter of the conical cavity. This utility model is used for concrete spraying in a wet spraying trolley.

[0004] However, the current concrete spraying angle adjustment device has the following problems: the operator cannot adjust and fix the angle of the spraying concrete nozzle, and it cannot fix different models of spraying concrete nozzles. Therefore, we propose a spraying concrete spraying angle adjustment device. Utility Model Content

[0005] The purpose of this invention is to provide a shotcrete spraying angle adjustment device that can solve the problems in related technologies where workers cannot adjust and fix the angle of the shotcrete nozzle, and cannot fix different models of shotcrete nozzles.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A shotcrete spraying angle adjustment device includes a mounting box, a rotating rod rotatably connected to the bottom inner side of the mounting box, a first gear mounted on the top end of the rotating rod, and a telescopic rod mounted on the top end of the first gear. An installation rod is fixedly connected to the bottom inner side of the mounting box, and a second gear is rotatably connected to the outer wall of the installation rod.

[0008] A support block is fixedly connected to the top of the mounting box, and a spring is installed at the bottom of the support block. A slot is opened on one side of the mounting box, and a pedal is rotatably connected to the inner wall of the slot. A fixing plate is fixedly connected to the bottom of the pedal, and a nozzle is provided on the top of the fixing plate.

[0009] The present invention further describes that the outer wall of the first gear is meshed with the outer wall of the second gear, and the outer wall of the second gear is movably connected to the outer wall of the fixed plate. The bottom end of the telescopic rod passes through the top of the mounting box and is installed and connected to the top end of the first gear. One end of the spring is installed and connected to the top of the pedal.

[0010] This utility model further illustrates that the bottom of the mounting box is fixedly connected to a caster wheel, and the outer wall of the mounting box is rotatably connected to a movable push rod.

[0011] The present invention further describes that a fixed plate is fixedly connected to the outer wall of the telescopic rod, and an electric cylinder is installed and connected to the top of the fixed plate. A support plate is installed and connected to the top of the telescopic rod, and the bottom of the support plate is movably connected to the output end of the electric cylinder.

[0012] The present invention further describes that the top of the support plate is fixedly connected to a mounting bracket, and the mounting bracket is rotatably connected to a screw, and the top of the screw is fixedly connected to a knob.

[0013] The present invention further illustrates that the bottom end of the screw is rotatably connected to a bearing seat, and the bottom end of the bearing seat is movably connected to a clamping plate.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention utilizes the coordinated use of a rotating rod, a first gear, a telescopic rod, a mounting rod, a second gear, a support block, a spring, a slot, a pedal, a fixing plate, casters, and a movable push rod. When using the device, the worker can push it to a designated position using the movable push rod and casters. When the device is in the designated position, the worker needs to press the pedal. The pedal rises, compressing the spring and causing the fixing plate to rise, thus releasing the fixing between the fixing plate and the second gear. After the second gear is released, the worker can rotate the spray nozzle, causing the telescopic rod to rotate. The telescopic rod then rotates the first gear, which in turn rotates the second gear, allowing the worker to rotate the spray nozzle. When the worker needs to fix the spray nozzle angle, simply release the pedal. The pedal, due to the spring's return, pushes the fixing plate to fix the second gear, thus allowing the worker to fix the spray angle of the spray nozzle. This allows workers to quickly adjust and fix the angle of the sprayed concrete nozzle when using the device, making it more convenient for them to use, improving their work efficiency, and enhancing the device's practicality.

[0016] This invention utilizes a combination of a fixed plate, an electric cylinder, a support plate, a mounting bracket, a screw, a knob, a bearing seat, and a clamping plate. When using the device, after placing the shotcrete nozzle on top of the support plate, the operator simply rotates the knob to rotate the screw. The rotating screw pushes the clamping plate to secure the shotcrete nozzle. Simultaneously, the operator can activate the electric cylinder to push the support plate, which in turn moves the end of the telescopic rod, allowing for quick adjustment of the nozzle's height. This allows for rapid fixation of different shotcrete nozzle models and quick height adjustment, enhancing user convenience and adaptability to a wider range of shotcrete nozzles, thus improving the device's practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire utility model;

[0018] Figure 2 This is a diagram illustrating the connection structure between the rotating rod and the first gear of this utility model.

[0019] Figure 3 This is a diagram illustrating the connection structure between the mounting rod and the second gear of this utility model.

[0020] Figure 4 This is a cross-sectional view of the connection structure between the telescopic rod and the fixed plate of this utility model;

[0021] Figure 5 This is a partial cross-sectional view of the screw and knob connection structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Mounting housing; 2. Rotating rod; 3. First gear; 4. Telescopic rod; 5. Mounting rod; 6. Second gear; 7. Support block; 8. Spring; 9. Groove; 10. Pedal; 11. Fixing plate; 12. Casters; 13. Movable push rod; 14. Fixing plate; 15. Electric cylinder; 16. Support plate; 17. Mounting bracket; 18. Screw; 19. Knob; 20. Bearing seat; 21. Clamping plate; 22. Nozzle. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1-5 As shown, a shotcrete spraying angle adjustment device includes a mounting box 1. A rotating rod 2 is rotatably connected to the inner bottom of the mounting box 1, and a first gear 3 is installed at the top of the rotating rod 2. A telescopic rod 4 is installed at the top of the first gear 3. A mounting rod 5 is fixedly connected to the inner bottom of the mounting box 1, and a second gear 6 is rotatably connected to the outer wall of the mounting rod 5. A support block 7 is fixedly connected to the inner top of the mounting box 1, and a spring 8 is installed at the bottom of the support block 7. A slot 9 is opened on one side of the mounting box 1, and the inner wall of the slot 9 rotates... A pedal 10 is movably connected, and a fixing plate 11 is fixedly connected to the bottom of the pedal 10. A nozzle 22 is provided on the top of the fixing plate 11. The outer wall of the first gear 3 meshes with the outer wall of the second gear 6, and the outer wall of the second gear 6 is movably connected to the outer wall of the fixing plate 11. The bottom end of the telescopic rod 4 passes through the top of the mounting box 1 and is installed and connected to the top of the first gear 3. One end of the spring 8 is installed and connected to the top of the pedal 10. A caster wheel 12 is fixedly connected to the bottom of the mounting box 1, and a movable push rod 13 is rotatably connected to the outer wall of the mounting box 1.

[0026] Based on the above structure, this utility model utilizes the coordinated operation of the rotating rod 2, the first gear 3, the telescopic rod 4, the mounting rod 5, the second gear 6, the support block 7, the spring 8, the slot 9, the pedal 10, the fixing plate 11, the caster wheel 12, and the movable push rod 13. When the operator uses the device, the movable push rod 13 and the caster wheel 12 work together to push the device to the designated position. When the device is in the designated position, the operator needs to step on the pedal 10. The pedal 10 will rise, compressing the spring 8 and causing the fixing plate 11 to rise, thus fixing the fixing plate 11 to the second gear 6. Once the second gear 6 is released from its fixed position, the operator can rotate the sprayed concrete nozzle, causing the telescopic rod 4 to rotate. The telescopic rod 4 then rotates the first gear 3, which in turn rotates the second gear 6. This allows the operator to rotate the sprayed concrete nozzle. When the operator needs to fix the sprayed concrete nozzle angle, simply release the pedal 10. The spring 8 will then push the fixing plate 11 to fix the second gear 6, allowing the operator to fix the spraying angle of the sprayed concrete nozzle. This allows the operator to quickly adjust and fix the sprayed concrete nozzle angle, making it more convenient and improving the operator's work efficiency and practicality.

[0027] like Figure 1-5As shown, a fixed plate 14 is fixedly connected to the outer wall of the telescopic rod 4, and an electric cylinder 15 is installed on the top of the fixed plate 14. A support plate 16 is installed on the top of the telescopic rod 4, and the bottom of the support plate 16 is movably connected to the output end of the electric cylinder 15. A mounting bracket 17 is fixedly connected to the top of the support plate 16, and a screw 18 is rotatably connected inside the mounting bracket 17. A knob 19 is fixedly connected to the top of the screw 18. A bearing seat 20 is rotatably connected to the bottom of the screw 18, and a clamping plate 21 is movably connected to the bottom of the bearing seat 20.

[0028] Based on the above structure, this utility model utilizes the coordinated use of a fixed plate 14, an electric cylinder 15, a support plate 16, a mounting bracket 17, a screw 18, a knob 19, a bearing seat 20, and a clamping plate 21. When using the device, after placing the sprayed concrete nozzle on top of the support plate 16, the operator simply rotates the knob 19 to rotate the screw 18. The rotating screw 18 pushes the clamping plate 21 to fix the sprayed concrete nozzle. The operator can also activate the electric cylinder 15 to push the support plate 16, which in turn moves the end of the telescopic rod 4, allowing for quick adjustment of the nozzle height. This enables the operator to quickly fix different types of sprayed concrete nozzles and adjust their height, making the device more convenient to use and adaptable to a wider range of sprayed concrete nozzles, thus improving its practicality.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A shotcrete spray angle adjustment device, characterized by: Including installation box (1), the inner bottom of installation box (1) is rotatably connected with rotary bar (2), and the top end of rotary bar (2) is rotatably connected with first gear (3), and the top end of first gear (3) is rotatably connected with telescopic rod (4), the inner bottom of installation box (1) is fixedly connected with installation rod (5), and the outer wall of installation rod (5) is rotatably connected with second gear (6); The inner top of installation box (1) is fixedly connected with support block (7), and the bottom of support block (7) is rotatably connected with spring (8), one side of installation box (1) is provided with notch (9), and the inner wall of notch (9) is rotatably connected with pedal (10), and the bottom of pedal (10) is fixedly connected with fixed plate (11), the top of fixed plate (11) is provided with spray head (22).

2. A shotcrete spray angle adjustment device according to claim 1, characterised in that: The outer wall of first gear (3) is rotatably connected with the outer wall of second gear (6), and the outer wall of second gear (6) is rotatably connected with the outer wall of fixed plate (11), the bottom end of telescopic rod (4) penetrates the top of installation box (1) and is rotatably connected with the top end of first gear (3), one end of spring (8) is rotatably connected with the top of pedal (10).

3. A shotcrete spray angle adjustment device according to claim 2, wherein: The bottom of installation box (1) is rotatably connected with universal wheel (12), and the outer wall of installation box (1) is rotatably connected with movable push rod (13).

4. A shotcrete spray angle adjustment device according to claim 1, wherein: The outer wall of telescopic rod (4) is rotatably connected with fixed disc (14), and the top of fixed disc (14) is rotatably connected with electric cylinder (15), the top end of telescopic rod (4) is rotatably connected with support plate (16), and the bottom of support plate (16) is rotatably connected with the output end of electric cylinder (15).

5. A shotcrete spray angle adjustment device according to claim 4, wherein: The top of support plate (16) is rotatably connected with mounting bracket (17), and the inside of mounting bracket (17) is rotatably connected with screw rod (18), and the top end of screw rod (18) is rotatably connected with knob (19).

6. A shotcrete spray angle adjustment device according to claim 5, wherein: The bottom end of screw rod (18) is rotatably connected with bearing seat (20), and the bottom end of bearing seat (20) is rotatably connected with clamping plate (21).

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