Nozzle device of concrete wet spraying machine for tunnel

Abstract

The utility model relates to the technical field of nozzle devices of wet spraying machines, and discloses a nozzle device of a concrete wet spraying machine for a tunnel, which comprises a bottom plate, the upper part of the bottom plate is fixedly connected with a fixing frame, the upper side of the fixing frame is provided with a placing groove, and the fixing frame is rotatably connected with an adapter block through an adapter shaft; a supporting plate is fixedly connected to the right side of the adapter block, a material conveying pipe is fixedly connected to the upper side of the supporting plate, a nozzle body is arranged on the right side of the material conveying pipe, a first connecting block is fixedly connected to the right side of the fixing frame, and a hydraulic rod is rotationally connected to the first connecting block through a first connecting shaft; and the output end of the hydraulic rod is rotationally connected with a second connecting block through a second connecting shaft. According to the concrete spraying device, the spraying angle of concrete can be adjusted, so that an operator can adjust the spraying angle according to actual requirements, and concrete is conveyed into the nozzle body to be sprayed while the concrete is kept wet.

Description

Technical Field

[0001] The utility model relates to the technical field of wet spraying machine nozzle devices, in particular to a nozzle device of a tunnel concrete wet spraying machine. Background Art

[0002] With the promotion and application of shotcrete support, wet concrete spraying machines are widely used in the rapid repair of national defense caverns and tunnels and culverts of railways, highways and water conservancy. The concrete mixed by the mixer is sent into the delivery pipe of the wet spraying machine by the pumping device to the nozzle, and finally the quick-setting agent is added at the nozzle, and the concrete is sprayed out from the head of the nozzle by compressed air.

[0003] The prior art has a nozzle device that can evenly mix gas, concrete and accelerator to achieve long-distance spraying of concrete with accelerator added. The technical solution of the utility model is a nozzle device for a concrete wet spraying machine, including a nozzle body and a nozzle seat, the inner circular surface of the nozzle seat and the outer circular surface of the tail of the nozzle body are coaxially slidably inserted, there are three annular grooves on the nozzle body of the matching part of the two, and sealing rings are installed in the grooves, and a fastening connection device is provided between the nozzle seat port and the outer circular surface of the nozzle body; a circle of annular accelerator grooves is opened on the nozzle body in the middle of the three sealing rings at the tail of the nozzle body, and accelerator holes are evenly distributed along the circumferential direction of the bottom of the annular groove, and an air inlet is provided on the nozzle seat at a position corresponding to the annular accelerator groove, and the air inlet is connected to the air inlet device.

[0004] However, when the above device is in use, the use angle of the nozzle cannot be adjusted, thereby reducing the practicability of the device. Utility Model Content

[0005] The utility model aims to solve the defect in the prior art that the use angle of the nozzle cannot be adjusted during use, and proposes a nozzle device for a tunnel concrete wet spraying machine.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a nozzle device of a wet concrete spraying machine for a tunnel, comprising a base plate, a fixing frame fixedly connected to the upper part of the base plate, a placement groove being provided on the upper side of the fixing frame, the fixing frame being rotatably connected to an adapter block via an adapter shaft, a support plate being fixedly connected to the right side of the adapter block, a material delivery pipe being fixedly connected to the upper side of the support plate, a nozzle body being arranged on the right side of the material delivery pipe, a first connecting block being fixedly connected to the right side of the fixing frame, the first connecting block being rotatably connected to a hydraulic rod via a first connecting shaft, an output end of the hydraulic rod being rotatably connected to a second connecting block via a second connecting shaft, a support plate being fixedly connected to the upper side of the second connecting block, and a material delivery assembly being fixedly connected to the upper side of the material delivery pipe.

[0007] As a further description of the above technical solution:

[0008] The material delivery component comprises a liquid injection port, the liquid injection port is fixedly connected to the upper side of the material delivery pipe, and a connecting pipe is fixedly connected to the upper side of the liquid injection port.

[0009] As a further description of the above technical solution:

[0010] A motor is fixedly connected to the left side of the material conveying pipe, and a driving component is fixedly connected to the output end of the motor. The driving component is rotatably connected to the inner left side of the material conveying pipe.

[0011] As a further description of the above technical solution:

[0012] The driving assembly comprises a rotating shaft, the rotating shaft is fixedly connected to the output end of the motor, and a conveying blade is arranged outside the rotating shaft.

[0013] As a further description of the above technical solution:

[0014] Bolts are threadedly connected on both sides of the bottom plate.

[0015] As a further description of the above technical solution:

[0016] The adapter block is rotatably connected inside the placement slot.

[0017] As a further description of the above technical solution:

[0018] The motor is fixedly connected inside the adapter block.

[0019] As a further description of the above technical solution:

[0020] The rotating shaft is rotatably connected to the inner left side of the material conveying pipe.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the second connecting block, the support plate and the feed pipe connected by the second connecting shaft are driven to move by starting the hydraulic rod. At the same time, the movement of the support plate drives the adapter block to rotate inside the placement groove, thereby adjusting the use angle of the nozzle body, thereby realizing the adjustable spraying angle of the concrete, so that the operator can adjust it according to actual needs.

[0023] 2. In the utility model, the rotating shaft and the conveying blades are driven to rotate by starting the motor, and the rotation of the conveying blades drives the concrete to be conveyed to the inside of the nozzle body, thereby achieving the goal of conveying the concrete to the inside of the nozzle body and keeping the concrete moist for spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is a front view of a nozzle device of a tunnel concrete wet spraying machine proposed by the utility model;

[0025] Figure 2 It is a rear view of a nozzle device of a tunnel concrete wet spraying machine proposed by the utility model;

[0026] Figure 3 The utility model discloses a cross-sectional view of a feed pipe of a nozzle device of a tunnel concrete wet spraying machine.

[0027] Legend:

[0028] 1. Bottom plate; 2. Fixing frame; 3. Placement slot; 4. Adapter shaft; 5. Adapter block; 6. Support plate; 7. Feed pipe; 8. Nozzle body; 9. First connecting block; 10. First connecting shaft; 11. Hydraulic rod; 12. Second connecting shaft; 13. Second connecting block; 14. Liquid injection port; 15. Connecting pipe; 16. Motor; 17. Rotating shaft; 18. Conveying blade; 19. Bolt. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 , Figure 2 The utility model provides an embodiment: a nozzle device of a tunnel concrete wet spraying machine, comprising a bottom plate 1, a fixing frame 2 is fixedly connected to the upper part of the bottom plate 1, a placement groove 3 is opened on the upper side of the fixing frame 2, the fixing frame 2 is rotatably connected to an adapter block 5 through an adapter shaft 4, a support plate 6 is fixedly connected to the right side of the adapter block 5, a feed pipe 7 is fixedly connected to the upper side of the support plate 6, a nozzle body 8 is arranged on the right side of the feed pipe 7, a first connecting block 9 is fixedly connected to the right side of the fixing frame 2, the first connecting block 9 is rotatably connected to a hydraulic rod 11 through a first connecting shaft 10, an output end of the hydraulic rod 11 is rotatably connected to a second connecting block 13 through a second connecting shaft 12, the upper side of the second connecting block 13 is fixedly connected to the support plate 6, and the upper side of the feed pipe 7 is fixedly connected to a feed assembly; the feed assembly comprises a liquid injection port 14, the liquid injection port 14 is fixedly connected to the upper side of the feed pipe 7, and a connecting pipe 15 is fixedly connected to the upper side of the liquid injection port 14.

[0031] Concrete is injected into the connecting pipe 15 and the feed pipe 7, and the second connecting block 13, the support plate 6 and the feed pipe 7 connected by the second connecting shaft 12 are driven to move by starting the hydraulic rod 11. At the same time, the movement of the support plate 6 drives the adapter block 5 to rotate inside the placement groove 3, thereby adjusting the use angle of the nozzle body 8, thereby playing a role in adjusting the spraying angle of the concrete.

[0032] Reference Figure 1 , Figure 2 , Figure 3 The feeding component includes a liquid injection port 14, which is fixedly connected to the upper side of the feeding pipe 7, and a connecting pipe 15 is fixedly connected to the upper side of the liquid injection port 14; the driving component includes a rotating shaft 17, which is fixedly connected to the output end of the motor 16, and a conveying blade 18 is arranged on the outside of the rotating shaft 17.

[0033] The rotating shaft 17 and the conveying blades 18 are driven to rotate by starting the motor 16 . The conveying blades 18 rotate to drive the concrete to be conveyed into the nozzle body 8 , thereby conveying the concrete into the nozzle body 8 .

[0034] Reference Figure 1 , Figure 2 , Figure 3 Bolts 19 are threadedly connected on both sides of the bottom plate 1; the adapter block 5 is rotatably connected to the inside of the placement groove 3; the motor 16 is fixedly connected to the inside of the adapter block 5; and the rotating shaft 17 is rotatably connected to the left side of the inside of the conveying pipe 7.

[0035] Bolts 19 are threadedly connected on both sides of the interior of the base plate 1, which plays a role in supporting and fixing the device; the adapter block 5 is rotatably connected to the interior of the placement groove 3, which plays a role in facilitating the angle adjustment of the support plate 6; the motor 16 is fixedly connected to the interior of the adapter block 5, which plays a role in fixing and supporting the motor 16; the rotating shaft 17 is rotatably connected to the left side of the interior of the feed pipe 7, which plays a role in driving the concrete to move.

[0036] Working principle: When using this device, concrete is injected into the connecting pipe 15, and the concrete enters the conveying pipe 7 from the connecting pipe 15. By starting the motor 16, the motor 16 starts to drive the rotating shaft 17 to rotate, and the rotation of the rotating shaft 17 drives the conveying blades 18 to rotate. The conveying blades 18 rotate and drive the concrete to move, and the concrete is transported from the inside of the conveying pipe 7 to the inside of the nozzle body 8, thereby realizing the transportation of concrete to the inside of the nozzle body 8, keeping the concrete moist for spraying; by starting the hydraulic rod 11, the hydraulic rod 11 starts to drive the second connecting block 13 connected to the second connecting shaft 12 to move, and the movement of the second connecting block 13 drives the support plate 6 to move, and the movement of the support plate 6 drives the conveying pipe 7 to move, and at the same time, the movement of the support plate 6 drives the adapter block 5 to rotate inside the placement groove 3, thereby adjusting the use angle of the nozzle body 8, and realizing that the spraying angle of the concrete can be adjusted, so that the operator can adjust it according to actual needs.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nozzle device for a tunnel concrete spraying machine, comprising a bottom plate (1), characterized in that: The upper part of the base plate (1) is fixedly connected to a fixing frame (2), the upper side of the fixing frame (2) is provided with a placement groove (3), the fixing frame (2) is rotatably connected to an adapter block (5) via an adapter shaft (4), the right side of the adapter block (5) is fixedly connected to a support plate (6), the upper side of the support plate (6) is fixedly connected to a material delivery pipe (7), the right side of the material delivery pipe (7) is provided with a nozzle body (8), the right side of the fixing frame (2) is fixedly connected to a first connection block (9), the first connection block (9) is rotatably connected to a hydraulic rod (11) via a first connection shaft (10), the output end of the hydraulic rod (11) is rotatably connected to a second connection block (13) via a second connection shaft (12), the upper side of the second connection block (13) is fixedly connected to the support plate (6), and the upper side of the material delivery pipe (7) is fixedly connected to a material delivery assembly.

2. The nozzle device of a tunnel concrete spraying machine according to claim 1, characterized in that: The material delivery component comprises a liquid injection port (14), the liquid injection port (14) is fixedly connected to the upper side of the material delivery pipe (7), and a connecting pipe (15) is fixedly connected to the upper side of the liquid injection port (14).

3. The nozzle device of a tunnel concrete spraying machine according to claim 1, characterized in that: The left side of the material delivery pipe (7) is fixedly connected to a motor (16), the output end of the motor (16) is fixedly connected to a drive assembly, and the drive assembly is rotatably connected to the left side inside the material delivery pipe (7).

4. The nozzle device of a tunnel concrete spraying machine according to claim 3, characterized in that: The driving assembly comprises a rotating shaft (17), the rotating shaft (17) is fixedly connected to the output end of the motor (16), and a conveying blade (18) is arranged outside the rotating shaft (17).

5. The nozzle device of a tunnel concrete spraying machine according to claim 1, characterized in that: Bolts (19) are threadedly connected on both sides of the interior of the base plate (1).

6. The nozzle device of a tunnel concrete spraying machine according to claim 1, characterized in that: The adapter block (5) is rotatably connected inside the placement groove (3).

7. The nozzle device of a tunnel concrete spraying machine according to claim 3, characterized in that: The motor (16) is fixedly connected inside the adapter block (5).

8. The nozzle device of a tunnel concrete spraying machine according to claim 4, characterized in that: The rotating shaft (17) is rotatably connected to the inner left side of the material conveying pipe (7).

Images