Integrated spraying equipment for inner wall of exhaust funnel
By introducing a protective shell and cleaning brush into the spraying equipment, the problems of dust contamination and paint cleaning on the nozzle surface are solved, achieving effective protection and cleaning of the nozzle, and improving the service life of the equipment and spraying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO YIDEFENG AUTO PARTS CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-14
AI Technical Summary
Existing spraying equipment leaves dust on the nozzle surface after spraying the inner wall of the exhaust stack, and it is not easy to clean the residual paint.
A spraying device including a protective shell and a cleaning brush was designed. The protective shell is driven by a spring to cover the nozzle to prevent dust from getting into it, and the cleaning brush is driven by a brush plate to clean the paint on the surface of the nozzle.
It effectively prevents dust from contaminating the spray nozzle, simplifies the cleaning process, and improves the service life of the equipment and spraying efficiency.
Smart Images

Figure CN224114328U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of exhaust pipe inner wall spraying technology, specifically an integrated spraying device for the inner wall of an exhaust pipe. Background Technology
[0002] Exhaust stacks are a common type of industrial equipment, widely used in factories, power plants, chemical enterprises, and other places to discharge waste gas, flue gas, and other harmful substances. In order to improve the service life of exhaust stacks and reduce corrosion, the inner wall of the exhaust stack is usually coated with a protective coating using spraying equipment.
[0003] A search of Chinese patent CN217940648U reveals an epoxy powder coating device for the inner and outer surfaces of drinking water pipes. The device includes a mounting plate with two through slots on its top surface, and a coating assembly comprising a movable frame, a mounting frame, a guide pipe, two sliding plates, a movable block, and a nozzle. The movable frame is slidably mounted on the top surface of the mounting plate, and the mounting frame is fixedly connected to the top surface of the movable frame. The guide pipe is installed inside the mounting frame, and both sliding plates are fixedly connected to the bottom surface of the movable frame. This epoxy powder coating device for drinking water pipes uses a motor to drive a threaded rod to rotate, causing the movable block to move. The moving movable block then moves the movable frame and mounting frame, thereby changing the position of the nozzle. This allows the nozzle to coat the inner wall of the drinking water pipe at different locations. During coating, there is no need for operators to hold the coating device, and the coating range can be adjusted for better results.
[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. After the spraying equipment finishes spraying the inner wall of the exhaust pipe, the surface of the nozzle is covered with paint, which makes it easy to get dusty, making it difficult to protect the nozzle and clean the residual paint adhering to the nozzle. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an integrated spraying device for the inner wall of an exhaust stack.
[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0007] An embodiment of this utility model provides an integrated spraying device for the inner wall of an exhaust stack, including a base, a fixing clamp fixedly installed on the base, a hydraulic cylinder provided on the fixing clamp, a movable clamp adapted to the fixing clamp fixedly installed on the telescopic end of the hydraulic cylinder, and a spraying mechanism provided on the base. The spraying mechanism is characterized in that: the spraying mechanism includes an electric telescopic rod provided on the base, a connecting block fixedly installed on the telescopic end of the electric telescopic rod, an interface fixedly installed on the connecting block, a conveying pipe fixedly installed on the interface, and a nozzle fixedly installed at the end of the conveying pipe.
[0008] The conveying pipe is provided with an abutting mechanism, which includes two fixed rings fixedly installed on the conveying pipe, a support ring movably installed between the two fixed rings, and two locking blocks symmetrically fixedly installed on the support ring;
[0009] A rotating ring is rotatably mounted on the delivery pipe, and a first spring is connected to the rotating ring. A support shell is connected to the end of each first spring, and a protective shell adapted to the nozzle is fixedly mounted on the support shell.
[0010] A support mechanism is provided between the two card blocks and the rotating ring. Each protective shell is provided with a cleaning mechanism, which includes a brush plate movably mounted on the protective shell. A cleaning brush adapted to the nozzle is fixedly mounted on the brush plate. Each protective shell is provided with a positioning component.
[0011] Furthermore, the fixed clamp and the movable clamp together hold the cylinder.
[0012] Furthermore, each of the card blocks is fixedly installed with a side block, and a fixing bolt is threaded onto the side block. Each of the support shells is fixedly installed with a side block that is compatible with the fixing bolt.
[0013] Furthermore, the support mechanism includes a long sleeve fixedly mounted on the card block, the inner wall of the long sleeve is connected to a second spring, and the end of the second spring is connected to a movable rod fixed to the rotating ring.
[0014] Furthermore, the positioning component includes a threaded block fixedly mounted on the protective shell, and a positioning bolt adapted to the brush plate is threaded onto the threaded block.
[0015] The above-described solution of this utility model has at least the following beneficial effects:
[0016] 1. In this utility model, by unscrewing the fixing bolt out of the inner side of the side block, the second spring uses its own elastic force to drive the protective shell to move through the movable rod, the rotating ring, the first spring and the support shell. By opening the two protective shells, the two protective shells are moved to the inner side of the nozzle. When the protective shells are loosened, the first spring uses its own elastic force to support the protective shell and wrap and protect the nozzle, thereby preventing dust from getting in.
[0017] 2. In this utility model, the cleaning brush is moved between the protective shell and the nozzle by moving the brush plate, and the positioning bolt is screwed into the inside of the brush plate to fix the cleaning brush. The protective shell is rotated so that the protective shell drives the cleaning brush to clean the surface of the nozzle through the positioning bolt and the brush plate. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of an integrated spraying device for the inner wall of an exhaust pipe according to the present invention.
[0019] Figure 2 This is a schematic diagram of the movable clamp three-dimensional structure of an integrated spraying device for the inner wall of an exhaust pipe according to the present invention;
[0020] Figure 3 This is a three-dimensional structural diagram of the nozzle of an integrated spraying device for the inner wall of an exhaust pipe according to the present invention.
[0021] Figure 4 This is a schematic diagram of the long sleeve structure of an integrated spraying device for the inner wall of an exhaust pipe according to the present invention.
[0022] Figure 5 This is a schematic diagram of the exploded structure of the protective shell of an integrated spraying device for the inner wall of an exhaust pipe according to the present invention.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Base; 2. Fixing clamp; 3. Hydraulic cylinder; 4. Movable clamp; 5. Cylinder; 6. Electric telescopic rod; 7. Connecting block; 8. Interface; 9. Delivery pipe; 10. Nozzle; 11. Fixing ring; 12. Support ring; 13. Clamping block; 14. Side block; 15. Fixing bolt; 16. Rotating ring; 17. First spring; 18. Support shell; 19. Protective shell; 20. Side block; 21. Long sleeve; 22. Second spring; 23. Movable rod; 24. Brush plate; 25. Cleaning brush; 26. Threaded block; 27. Positioning bolt. Detailed Implementation
[0025] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0026] like Figures 1 to 5 As shown, an embodiment of this utility model provides an integrated spraying device for the inner wall of an exhaust stack, including a base 1, a fixing clamp 2 fixedly installed on the base 1, a hydraulic cylinder 3 fixedly installed on the fixing clamp 2, a movable clamp 4 adapted to the fixing clamp 2 fixedly installed on the telescopic end of the hydraulic cylinder 3, a spraying mechanism provided on the base 1, the fixing clamp 2 and the movable clamp 4 jointly clamping the cylinder body 5, the spraying mechanism including an electric telescopic rod 6 fixedly installed on the base 1, a connecting block 7 fixedly installed on the telescopic end of the electric telescopic rod 6, an interface 8 fixedly installed on the connecting block 7, the spraying mechanism also includes a conveying pipe 9 fixedly installed on the interface 8, and a nozzle 10 fixedly installed at the end of the conveying pipe 9.
[0027] In this embodiment of the utility model, interface 8 is connected to an external coating conveying device. The operator moves the cylinder 5 between the fixed clamp 2 and the movable clamp 4 using a handling device. The operator controls the extension end of the hydraulic cylinder 3 to extend, so that the extension end of the hydraulic cylinder 3 drives the movable clamp 4 to cooperate with the fixed clamp 2 to clamp the cylinder 5. The operator controls the external coating conveying device to move the coating into the inside of the nozzle 10 through interface 8 and conveying pipe 9. The nozzle 10 sprays the coating onto the inner wall of the cylinder 5. At the same time, the operator controls the extension end of the electric telescopic rod 6 to move, so that the extension end of the electric telescopic rod 6 drives the nozzle 10 to move along the inner wall of the cylinder 5 through the connecting block 7, interface 8 and conveying pipe 9, thereby uniformly spraying the cylinder 5.
[0028] Figures 1 to 5 As shown, the conveying pipe 9 is provided with an abutting mechanism, which includes two fixed rings 11 fixedly installed on the conveying pipe 9, a support ring 12 movably installed between the two fixed rings 11, two locking blocks 13 symmetrically fixedly installed on the support ring 12, a rotating ring 16 rotatably installed on the conveying pipe 9, a first spring 17 connected to the rotating ring 16, a support shell 18 connected to the end of each first spring 17, a protective shell 19 adapted to the nozzle 10 fixedly installed on the support shell 18, a side block 14 fixedly installed on each locking block 13, a fixing bolt 15 threaded on the side block 14, a side block 20 adapted to the fixing bolt 15 fixedly installed on each support shell 18, and a support mechanism including a long sleeve 21 fixedly installed on the locking block 13, a second spring 22 connected to the inner wall of the long sleeve 21, and a movable rod 23 fixed to the rotating ring 16 connected to the end of the second spring 22.
[0029] In this embodiment of the utility model, the operator unscrews the fixing bolt 15 out of the inside of the side block 20, so that the second spring 22 uses its own elastic force to drive the protective shell 19 to move through the movable rod 23, the rotating ring 16, the first spring 17 and the support shell 18. By opening the two protective shells 19, the two protective shells 19 are moved to the inside of the nozzle 10. When the protective shells 19 are released, the first spring 17 uses its own elastic force to support the protective shells 19 to wrap and protect the nozzle 10, thereby preventing dust from getting in.
[0030] When in use, open the protective shell 19 and move the protective shell 19 so that the protective shell 19, under the abutment of the locking block 13, drives the side block 20 to move and fit against the edge block 14 through the support shell 18. Tighten the fixing bolt 15 so that the fixing bolt 15 fixes the protective shell 19 under the thread support of the edge block 14 and the side block 20.
[0031] Figures 1 to 5 As shown, a support mechanism is provided between the two locking blocks 13 and the rotating ring 16. Each protective shell 19 is provided with a cleaning mechanism, which includes a brush plate 24 movably mounted on the protective shell 19. A cleaning brush 25 adapted to the nozzle 10 is fixedly mounted on the brush plate 24. Each protective shell 19 is provided with a positioning component, which includes a threaded block 26 fixedly mounted on the protective shell 19. A positioning bolt 27 adapted to the brush plate 24 is threadedly mounted on the threaded block 26.
[0032] In this embodiment of the utility model, the worker moves the cleaning brush 25 between the protective shell 19 and the nozzle 10 by holding the brush plate 24, screws the positioning bolt 27 into the inside of the brush plate 24 to fix the cleaning brush 25, and rotates the protective shell 19 so that the protective shell 19 drives the cleaning brush 25 to clean the surface of the nozzle 10 through the positioning bolt 27 and the brush plate 24.
[0033] After cleaning, the positioning pin 27 is removed from the inside of the brush plate 24, the cleaning brush 25 is removed from the inside of the protective shell 19, the protective shell 19 is opened, the hardened residual paint inside the protective shell 19 is cleaned, and the new cleaning brush 25 is reinstalled on the protective shell 19.
[0034] Working principle: The operator moves the cylinder 5 between the fixed clamp 2 and the movable clamp 4 using the handling equipment. The operator controls the extension end of the hydraulic cylinder 3 to extend, so that the extension end of the hydraulic cylinder 3 drives the movable clamp 4 to cooperate with the fixed clamp 2 to clamp the cylinder 5. The operator controls the external coating conveying equipment to move the coating into the inside of the nozzle 10 through the interface 8 and the conveying pipe 9. The nozzle 10 sprays the coating onto the inner wall of the cylinder 5. At the same time, the operator controls the extension end of the electric telescopic rod 6 to move, so that the extension end of the electric telescopic rod 6 drives the nozzle 10 to move along the inner wall of the cylinder 5 through the connecting block 7, the interface 8 and the conveying pipe 9, thereby uniformly spraying the cylinder 5.
[0035] After the spraying is completed, the workers unscrew the fixing bolt 15 out of the inside of the side block 20, so that the second spring 22 uses its own elastic force to drive the protective shell 19 to move through the movable rod 23, the rotating ring 16, the first spring 17 and the support shell 18. By opening the two protective shells 19, the two protective shells 19 are moved to the inside of the spray head 10. The protective shells 19 are then released, so that the first spring 17 uses its own elastic force to support the protective shells 19 and wrap and protect the spray head 10.
[0036] After the residual paint on the surface of the nozzle 10 has hardened, the worker moves the cleaning brush 25 between the protective shell 19 and the nozzle 10 by moving the brush plate 24, and screws the positioning bolt 27 into the inside of the brush plate 24 to fix the cleaning brush 25. The protective shell 19 is rotated so that the protective shell 19 drives the cleaning brush 25 to clean the surface of the nozzle 10 through the positioning bolt 27 and the brush plate 24.
[0037] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. An integrated spraying device for the inner wall of an exhaust stack, comprising a base (1), a fixing clamp (2) fixedly mounted on the base (1), a hydraulic cylinder (3) mounted on the fixing clamp (2), a movable clamp (4) adapted to the fixing clamp (2) fixedly mounted on the telescopic end of the hydraulic cylinder (3), and a spraying mechanism mounted on the base (1), characterized in that: The spraying mechanism includes an electric telescopic rod (6) mounted on the base (1), a connecting block (7) is fixedly installed on the telescopic end of the electric telescopic rod (6), an interface (8) is fixedly installed on the connecting block (7), a conveying pipe (9) is fixedly installed on the interface (8), and a spray nozzle (10) is fixedly installed at the end of the conveying pipe (9). The conveying pipe (9) is provided with an abutting mechanism, which includes two fixed rings (11) fixedly installed on the conveying pipe (9), a support ring (12) is movably installed between the two fixed rings (11), and two locking blocks (13) are symmetrically fixedly installed on the support ring (12). A rotating ring (16) is rotatably mounted on the delivery pipe (9). A first spring (17) is connected to the rotating ring (16). A support shell (18) is connected to the end of each first spring (17). A protective shell (19) adapted to the nozzle (10) is fixedly mounted on the support shell (18). A support mechanism is provided between the two card blocks (13) and the rotating ring (16). Each protective shell (19) is provided with a cleaning mechanism, which includes a brush plate (24) movably installed on the protective shell (19). A cleaning brush (25) adapted to the nozzle (10) is fixedly installed on the brush plate (24). Each protective shell (19) is provided with a positioning component.
2. The integrated spraying equipment for the inner wall of an exhaust stack according to claim 1, characterized in that: The fixed clamp (2) and the movable clamp (4) together hold the cylinder (5).
3. The integrated spraying equipment for the inner wall of an exhaust stack according to claim 1, characterized in that: Each of the card blocks (13) is fixedly installed with a side block (14), and a fixing bolt (15) is threaded onto the side block (14). Each of the support shells (18) is fixedly installed with a side block (20) that is compatible with the fixing bolt (15).
4. The integrated spraying equipment for the inner wall of an exhaust stack according to claim 1, characterized in that: The support mechanism includes a long sleeve (21) fixedly installed on the card block (13), and a second spring (22) is connected to the inner wall of the long sleeve (21). The end of the second spring (22) is connected to a movable rod (23) fixed to the rotating ring (16).
5. The integrated spraying equipment for the inner wall of an exhaust stack according to claim 4, characterized in that: The positioning component includes a threaded block (26) fixedly mounted on the protective shell (19), and a positioning bolt (27) adapted to the brush plate (24) is threaded onto the threaded block (26).
Citation Information
Patent Citations
Equipment for spraying epoxy powder inside and outside drinking water pipeline
CN217940648U