A concrete pipe spraying apparatus

By combining cylinders and gear mechanisms, stable clamping and rotating spraying of concrete pipes are achieved, overcoming the shortcomings of existing equipment in terms of fixation and uniform spraying, and improving the stability and efficiency of the spraying equipment.

CN224371773UActive Publication Date: 2026-06-19ZHEJIANG JULONG PIPE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JULONG PIPE TECH CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing spraying equipment lacks stability in pipe fixing, making it difficult to adjust flexibly according to pipe size. Furthermore, it lacks a coordinated mechanism between pipe rotation and nozzle reciprocating motion, resulting in uneven spraying and low efficiency.

Method used

The system uses a cylinder to move the movable frame and coordinate with the fixed frame. The system uses gears, bevel gears and screws to stably clamp both ends of the pipe. The motor drives the gears to rotate the pipe, and at the same time, the motor drives the lead screw to reciprocate the nozzle, thus achieving coordinated operation of pipe rotation and nozzle movement.

Benefits of technology

It achieves stable clamping and uniform spraying of the pipeline, avoids spraying dead corners, and significantly improves the uniformity and integrity of the spraying.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224371773U_ABST
    Figure CN224371773U_ABST
Patent Text Reader

Abstract

The utility model relates to pipeline spraying technical field, concretely relates to a concrete pipeline spraying equipment, including collecting box, the top of collecting box is fixedly connected with spraying box, the inside fixedly connected with filter screen of collecting box, the top right -hand member of collecting box is fixedly connected with mount, the outside left -hand member of collecting box is fixedly connected with pneumatic cylinder, the extension section of pneumatic cylinder penetrates spraying box and is fixedly connected with movable stand inwards, the equipment moves with the cooperation of fixed frame and makes the arc plate on both ends of the carousel stretch out and contact with the inner wall of pipeline, utilize the transmission of gear, bevel gear and screw mechanism, realize the stable clamping of both ends of pipeline, secondly, the gear engagement of motor one drives makes pipeline rotate, and simultaneously, motor three drives the lead screw to let the spray head reciprocate with the accumulator plate, and the cooperation of both realizes the collaborative work of pipeline rotation and spray head movement, and this kind of bidirectional movement can cover each area of pipeline surface, avoid spraying dead angle, and significantly improve the uniformity and integrity of spraying.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline spraying technology, and in particular to a concrete pipeline spraying equipment. Background Technology

[0002] Concrete pipes are tubular building materials made from cement, sand, and other materials through molding and curing. They are commonly used in drainage, water supply, and municipal pipe network projects. Spray coating is primarily used to enhance the pipe's durability and protective performance. The coating material forms a protective layer on the pipe surface, effectively resisting acidic and alkaline substances in the soil, groundwater erosion, and the corrosive wear of the transported medium. This reduces the occurrence of cracks and leaks, extends the pipe's service life, and improves its weathering resistance and structural stability, ensuring the long-term safe operation of the project.

[0003] Existing spraying equipment may have insufficient stability in pipe fixing, lacking an efficient clamping mechanism, making it difficult to flexibly adjust and securely fix according to pipe size, which can easily lead to pipe shaking during spraying, affecting spraying accuracy and quality. In terms of spraying, there may be a lack of a coordinated mechanism between pipe rotation and nozzle reciprocating motion, relying solely on spraying in one direction, which can easily result in spraying dead corners or uneven thickness, resulting in low efficiency and difficulty in meeting the requirements of high-quality spraying. Utility Model Content

[0004] The purpose of this invention is to provide a concrete pipe spraying device that solves the problems of existing spraying devices in terms of pipe fixing and uniform spraying.

[0005] To achieve the above objectives, this utility model provides a concrete pipe spraying device, including a collection box, a spraying box fixedly connected to the top of the collection box, a filter screen fixedly connected inside the collection box, a fixed frame fixedly connected to the upper right end of the collection box, a cylinder fixedly connected to the outer left end of the collection box, an extension of the cylinder penetrating the spraying box and fixedly connected to a movable frame, a rotating shaft rotatably connected inside both the movable frame and the fixed frame, and a turntable fixedly connected to the inner end of the rotating shaft;

[0006] The outer end of the rotating shaft is fixedly connected to a second motor. The output end of the second motor passes through the turntable and is fixedly connected to a fourth gear. The right side of the rotating shaft is rotatably connected to the inner wall of the spray box. The right side of the rotating shaft is fixedly connected to a second gear. The inner side of the turntable is rotatably connected to three third gears. The third gears mesh with the fourth gears. A bevel gear is also fixedly connected to the third gear.

[0007] The turntable has three fixed plates fixedly connected to its inner side, and screws are rotatably connected to the inside of each fixed plate.

[0008] Among them, a second bevel gear is fixedly connected to one end of the screw near the first bevel gear, and the first bevel gear and the second bevel gear mesh with each other.

[0009] The screw has a threaded sleeve at its outer end, and an arc-shaped plate is fixedly connected to the other end of the screw sleeve through the turntable. The inner two ends of the fixed plate are fixedly connected to a sliding rod, and a connecting plate is fixedly connected to the outer end of the screw sleeve. The connecting plate is slidably connected to the sliding rod.

[0010] The outer right end of the spray box is fixedly connected to a motor, and the output end of the motor is fixedly connected to a gear, which meshes with a gear.

[0011] The left end of the spray box is slidably connected to two slide rods, and the right end of the slide rods is fixedly connected to the left end of the movable frame.

[0012] The spray box is fixedly connected to the upper left end of the spray box, and a slot is opened in the upper middle part of the spray box. A lead screw is rotatably connected inside the slot, and the output end of the motor is fixedly connected to the lead screw.

[0013] The lead screw is threaded with a threaded block, and the lower end of the threaded block is fixedly connected to a liquid storage plate. Several nozzles are installed through the liquid storage plate below it. A drain pipe is installed through the right side of the collection box. A spraying pipe is installed outward through the spraying box at the upper end of the liquid storage plate.

[0014] This utility model discloses a concrete pipe spraying device. The device uses a cylinder to drive a movable frame to move, which cooperates with a fixed frame to extend the arc-shaped plates on the turntables at both ends and contact the inner wall of the pipe. The transmission of gears, bevel gears and screws achieves stable clamping of both ends of the pipe. Then, a motor drives the gears to rotate the pipe, while a third motor drives the lead screw to make the nozzle reciprocate with the liquid storage plate. The combination of the two achieves coordinated operation of pipe rotation and nozzle movement. This bidirectional movement can cover all areas of the pipe surface, avoid spraying dead corners, and significantly improve the uniformity and integrity of the spraying. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the present invention.

[0018] Figure 3 This is a top view of the present invention.

[0019] Figure 4 This is a schematic diagram of the internal structure of the turntable of this utility model.

[0020] In the diagram: 1. Spraying box; 2. Cylinder; 3. Slide rod one; 4. Collection box; 5. Threaded block; 6. Drain pipe; 7. Gear one; 8. Motor one; 9. Motor two; 10. Gear two; 11. Lead screw; 12. Spraying pipe; 13. Groove; 14. Liquid storage plate; 15. Spray nozzle; 16. Arc plate; 17. Fixing frame; 18. Turntable; 19. Filter screen; 20. Movable frame; 21. Motor three; 22. Screw sleeve; 23. Screw; 24. Gear three; 25. Slide rod two; 26. Bevel gear one; 27. Fixing plate; 28. Connecting plate; 29. ​​Gear four; 30. Bevel gear two. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] The first embodiment of this application is as follows:

[0023] Please see Figure 1 , Figure 2 as well as Figure 4 A concrete pipe spraying device includes a collection box 4, a spraying box 1 fixedly connected to the top of the collection box 4, a filter screen 19 fixedly connected inside the collection box 4, a fixed frame 17 fixedly connected to the upper right end of the collection box 4, and a cylinder 2 fixedly connected to the outer left end of the collection box 4. The extension of the cylinder 2 passes through the spraying box 1 and is fixedly connected to a movable frame 20. The movable frame 20 and the fixed frame 17 are both rotatably connected to a rotating shaft. The inner end of the rotating shaft is fixedly connected to a turntable 18. The filter screen 19 installed inside the collection box 4 can filter out excess spray liquid and collect it uniformly for subsequent reuse, reducing the overall spraying cost. Secondly, the cylinder 2 can drive the movable frame 20 to move, thereby cooperating with the fixed frame 17 on the right to fix the pipe.

[0024] A motor 29 is fixedly connected to the outer end of the rotating shaft. The output end of the motor 29 passes through the turntable 18 and is fixedly connected to a gear 4 29. The right rotating shaft is rotatably connected to the inner wall of the spray box 1. A gear 2 10 is fixedly connected to the right rotating shaft. Three gears 3 24 are rotatably connected to the inner side of the turntable 18. Gears 3 24 mesh with gears 4 29. A bevel gear 1 26 is also fixedly connected to gears 3 24. Three fixing plates 27 are fixedly connected to the inner side of the turntable 18. A screw 23 is rotatably connected inside the fixing plate 27. The screw 23 is close to the bevel gear 1 2. One end of screw 23 is fixedly connected to bevel gear 20, bevel gear 26 meshes with bevel gear 20, and the outer end of screw 23 is threadedly connected to screw sleeve 22. The other end of screw sleeve 22 passes through turntable 18 and is fixedly connected to arc plate 16. The inner two ends of fixed plate 27 are fixedly connected to slide rod 25, and the outer end of screw sleeve 22 is fixedly connected to connecting plate 28, which is slidably connected to slide rod 25. In this device, turntable 18 has multiple gear assemblies installed inside. To avoid leakage, at the connection between screw sleeve 22 and turntable 18... Install its seals to prevent the sprayed liquid from entering the interior of the turntable 18 through gaps, achieving a strong sealing effect. Start the motor 29 on the two rotating shafts to drive the internal gear 4 29 to rotate. Under the action of meshing, it can drive the three sets of gear 3 24 and bevel gear 1 26 to rotate. Similarly, under the action of meshing, it can drive the bevel gear 2 30 and the screw 23 to rotate. Since the screw sleeve 22 is threadedly connected to the screw 23 and is restricted by the connecting plate 28, it can gradually move outward, causing the outer arc plate 16 to contact the inner wall of the pipe. To achieve the effect of fixing both ends of the pipe and ensure stability during spraying, the motor 29 on the left end is installed inside the spray box 1. Therefore, a protective shell is installed on the outer end of the motor 29 to ensure the protection of the motor 29. A wiring hole is opened on the left end of the spray box 1, and a rotary joint is installed in the wiring hole on the left end of the spray box 1. The wire of the motor 29 is connected to the external power supply through the rotary joint to prevent the wire from getting tangled when the motor rotates. Finally, an anti-slip pad is installed on the outer end of the arc plate 16. The anti-slip pad is made of nitrile rubber, which can improve friction and ensure the fixing effect.

[0025] The second embodiment of this application is as follows:

[0026] Please see Figure 3Based on the first embodiment, this embodiment also includes a spraying mechanism and a rotating mechanism. A motor 8 is fixedly connected to the right side of the outer side of the spraying box 1. A gear 7 is fixedly connected to the output end of the motor 8. The gear 7 meshes with the gear 10. Two slide rods 3 are slidably connected to the left side of the spraying box 1. The right end of the slide rods 3 is fixedly connected to the left side of the movable frame 20. When the motor 8 is started, the gear 7 is driven to rotate. Under the meshing action, the gear 10 and the rotating shaft are driven to rotate. The clamping assembly can realize the rotation spraying of the pipeline, improve the spraying effect and spraying uniformity of the entire device, and the two slide rods 3 on the left side can greatly improve the stability of the movable frame 20 when moving.

[0027] A motor 21 is fixedly connected to the upper left end of the spray box 1. A slot 13 is opened in the middle of the upper part of the spray box 1. A lead screw 11 is rotatably connected inside the slot 13. The output end of the motor 21 is fixedly connected to the lead screw 11. A threaded block 5 is threaded on the lead screw 11. A liquid storage plate 14 is fixedly connected to the lower end of the threaded block 5. Several nozzles 15 are installed through the bottom of the liquid storage plate 14. A drain pipe 6 is installed through the right side of the collection box 4. A spray pipe 12 is installed outward from the upper end of the liquid storage plate 14 through the spray box 1. Starting the motor 21 can drive the lead screw 11 to rotate. Under the action of the threaded engagement, the threaded block 5 can drive the liquid storage plate 14 and the nozzles 15 to reciprocate, thereby achieving a uniform spraying effect. In addition, the spray pipe 12 is a flexible hose. A long strip opening is opened at the connection between the hose and the spray box 1. The middle part of the hose is suspended above the top of the spray box 1 to avoid interference with the movement of the lead screw 11.

[0028] Working principle: During use, the operator opens the box door and aligns one end of the concrete pipe with the turntable 18 on the fixed frame 17. Then, the cylinder 2 is activated to move the movable frame 20, causing the turntable 18 on the movable frame 20 to engage with the left end of the concrete pipe. Subsequently, the motors 29 on the two rotating shafts are activated, driving the internal gears 4 29 to rotate. Under meshing action, these gears 3 24 and bevel gear 1 26 rotate. Similarly, under meshing action, they drive bevel gear 2 30 and the screw 23 to rotate. Because the screw sleeve 22 is threadedly connected to the screw 23 and connected to the plate 2... Because of the limitations imposed by component 8, the pipe can gradually move outward, causing the outer arc plate 16 to contact the inner wall of the pipe, thus fixing both ends of the pipe to ensure stability during spraying. Then, the spray pipe 12 is connected to the external spraying equipment, and the motor 21 is started to realize the reciprocating motion of the spraying components, which can achieve uniform spraying of the pipe. Finally, in order to ensure the overall spraying effect, the motor 8 is started to drive the gear 7 to rotate, which in turn drives the gear 10 and the shaft to rotate under meshing action. Through the clamping components, the pipe can be rotated for spraying, improving the spraying effect and uniformity of the entire device.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A concrete pipe spraying device, comprising a collection box, characterized in that: A spray box is fixedly connected to the top of the collection box, a filter screen is fixedly connected inside the collection box, a fixed frame is fixedly connected to the upper right end of the collection box, a cylinder is fixedly connected to the outer left end of the collection box, and a movable frame is fixedly connected to the extension of the cylinder through the spray box. A rotating shaft is rotatably connected inside both the movable frame and the fixed frame, and a turntable is fixedly connected to the inner end of the rotating shaft. The outer end of the rotating shaft is fixedly connected to a second motor. The output end of the second motor passes through the turntable and is fixedly connected to a fourth gear. The right side of the rotating shaft is rotatably connected to the inner wall of the spray box. The right side of the rotating shaft is fixedly connected to a second gear. The inner side of the turntable is rotatably connected to three third gears. The third gears mesh with the fourth gears. A bevel gear is also fixedly connected to the third gear.

2. The concrete pipe spraying equipment as described in claim 1, characterized in that: Three fixing plates are fixedly connected to the inner side of the turntable, and screws are rotatably connected inside the fixing plates.

3. The concrete pipe spraying equipment as described in claim 2, characterized in that: The screw is fixedly connected to a bevel gear two at the end near the first bevel gear, and the first bevel gear and the second bevel gear mesh with each other.

4. The concrete pipe spraying equipment as described in claim 2, characterized in that: The outer end of the screw is threaded with a screw sleeve, and the other end of the screw sleeve is fixedly connected to an arc-shaped plate through the turntable. The inner two ends of the fixed plate are fixedly connected to a slide rod two, and the outer end of the screw sleeve is fixedly connected to a connecting plate. The connecting plate is slidably connected to the slide rod two.

5. The concrete pipe spraying equipment as described in claim 1, characterized in that: A motor is fixedly connected to the right side of the spray box, and a gear is fixedly connected to the output end of the motor. The gear and gear mesh with each other.

6. The concrete pipe spraying equipment as described in claim 1, characterized in that: The left end of the spray box is slidably connected to two slide rods, and the right end of the slide rods is fixedly connected to the left end of the movable frame.

7. A concrete pipe spraying equipment as described in claim 1, characterized in that: A motor is fixedly connected to the upper left end of the spray box. A slot is opened in the upper middle part of the spray box. A lead screw is rotatably connected inside the slot. The output end of the motor is fixedly connected to the lead screw.

8. A concrete pipe spraying equipment as described in claim 7, characterized in that: The lead screw is threaded with a threaded block, and the lower end of the threaded block is fixedly connected to a liquid storage plate. Several nozzles are installed through the bottom of the liquid storage plate. A drain pipe is installed through the right side of the collection box. A spraying pipe is installed outward through the spraying box at the top end of the liquid storage plate.