Angle-adjustable paint spraying device for machining of marine fireproof door

By designing an adjustable-angle fire door painting device, a stable clamping and flipping mechanism for fire doors is achieved using a fixed frame and movable column structure. This solves the problems of pollution and angle adjustment during the painting process, and enables efficient and convenient painting operations.

CN224087068UActive Publication Date: 2026-04-07JIANGXI YUXIN FIRE FIGHTING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Fire doors are directly exposed during the painting process, causing paint splatter and pollution. Excess paint is difficult to collect, the spraying angle is inconvenient to adjust, and double-sided painting is cumbersome.

Method used

An adjustable-angle painting device for marine fire doors was designed. It adopts a structure of fixed frame, movable column and linear guide rail to achieve stable clamping and tilting adjustment of fire doors. Combined with the spray nozzle and electric telescopic rod in the paint spray box, it realizes closed painting and collection of excess paint.

Benefits of technology

It effectively prevents paint splatter and pollution, collects excess paint, and allows for convenient double-sided painting through angle adjustment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224087068U_ABST
Patent Text Reader

Abstract

The utility model discloses an angle-adjustable paint spraying device for processing a marine fireproof door, which comprises a paint spraying box body, a paint spraying pipe and sprayers arranged at the lower end of the paint spraying pipe at equal intervals, a fixed frame is arranged in the paint spraying box body, and the left end and the right end of the fixed frame are rotatably connected with movable columns for adjusting angles. The inner side of the movable column is fixedly connected with a supporting plate used for bearing the fireproof door, the movable column and the fixing ring drive the fireproof door to form an overturning structure in the middle of the fixing frame, and the overturning angle range of the fireproof door in the fixing frame is 0-180 degrees. According to the angle-adjustable paint spraying device for machining the marine fireproof door, paint spraying machining is conducted on the fireproof door in the paint spraying box body, pollution caused by outward splashing of paint due to the fact that the fireproof door is exposed outside is avoided, rotation between the movable column and the fixed frame is combined, the paint spraying angle of the fireproof door can be driven to be overturned and adjusted, and double-face paint spraying machining is achieved.
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Description

Technical Field

[0001] This utility model relates to the technical field of fire door painting, specifically to a painting device for marine fire doors with adjustable angle. Background Technology

[0002] Fire doors are doors that can maintain fire resistance, integrity, and heat insulation for a certain period of time when a fire occurs. Marine fire doors are used on ships to separate cabins, prevent the spread of fire, and protect personnel safety. During the production and processing of marine fire doors, the door body needs to be painted.

[0003] As disclosed in announcement number CN221245693U, a fire door painting device includes a fire door body, a base, a clamping mechanism, a painting mechanism, and a drying mechanism. The fire door body is located on the upper end of the base, the clamping mechanism is connected to the base, the painting mechanism is connected to the upper end of the base, and the drying mechanism is connected to the upper end of the base. The advantages of this invention are: this embodiment can paint a single fire door, and the clamping mechanism can fix the fire door, preventing it from shifting during painting; the painting mechanism can spray paint evenly on the fire door; and the drying mechanism can blow air onto the painted fire door to accelerate the drying and solidification of the paint.

[0004] However, existing technologies have problems such as fire doors being directly exposed during painting, causing paint to splatter and cause pollution, making it inconvenient to collect excess paint, and making it inconvenient to adjust the painting angle of the fire door. The operation is also quite cumbersome when painting both sides. For example, the comparative patents listed above have this problem.

[0005] To address this issue, we propose an adjustable-angle spray painting device for marine fire doors. Utility Model Content

[0006] The purpose of this utility model is to provide an adjustable-angle painting device for marine fire doors, in order to solve the problems mentioned in the background art, such as fire doors being directly exposed during painting, paint splashing outwards causing pollution, inconvenience in collecting excess paint, inconvenience in adjusting the painting angle of the fire door, and cumbersome operation when painting both sides.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-angle spray painting device for processing marine fireproof doors, comprising a spray painting box body, a spray painting pipe, and spray nozzles evenly spaced at the lower end of the spray painting pipe;

[0008] Also includes:

[0009] A fixed frame is set inside the paint spray box body, and both the left and right ends of the fixed frame are rotatably connected to movable columns for adjusting the angle. The inner side of the movable column is fixedly connected to a support plate for supporting the fire door, and the movable column together with the fixed ring drives the fire door to form a flipping structure in the middle of the fixed frame.

[0010] Meanwhile, the fire door's rotation angle range within the fixed frame is 0-180°;

[0011] A cover plate is fixedly connected to the front side of the fixed frame, and a connecting column for support is fixedly connected to the lower end of the cover plate. The connecting column and the linear guide rail fixed to the lower front side of the paint spray box body form a front-back sliding structure.

[0012] Preferably, a fixing ring is fixedly connected to the inner side of the movable column, and a fixing cylinder is sleeved on the outer side of the movable column, forming a telescopic structure between the movable column and the fixing cylinder.

[0013] Preferably, the fixing ring and the fixing cylinder form a left-right sliding structure, and the fixing ring and the fixing cylinder are fixed by fastening bolts.

[0014] Preferably, the fixing cylinder is fixedly connected to the middle of the support plate, and the front and rear sides of the upper end of the support plate are threaded with fixing bolts for compression and limiting, and the lower end of the fixing bolts is tightly fitted to the fire door.

[0015] Preferably, a fixing rod is rotatably connected to the outer side of the fixing frame, and the fixing rod is flipped and engaged in the middle of the outer side of the movable column. The rear end of the fixing rod is threaded with a fixing cap for positioning, and the fixing cap is fitted to the rear end of the movable column.

[0016] Preferably, the lower end of the connecting column is provided with a ball bearing, which rolls at the bottom of the linear guide rail.

[0017] Preferably, both ends of the cover plate are rotatably connected to movable plates, and the movable plates are flipped backward and engaged with protrusions fixed to the front side of the paint spray box body. At the same time, a torsion spring is provided at the connection between the movable plates and the cover plate.

[0018] Preferably, an electric telescopic rod is installed at the rear end of the paint spraying box, and a paint spraying pipe is fixedly connected to the output end of the electric telescopic rod. The paint spraying pipe and the support rail fixed to the inner wall of the paint spraying box form a front-to-back sliding structure.

[0019] The paint spray pipe is connected to the pump body and the paint tank via a flexible hose.

[0020] Compared with the prior art, the beneficial effects of this utility model are: the adjustable angle marine fire door painting device, through the setting of support plate and fixing bolt, facilitates stable clamping and positioning of fire door. Combined with the back-and-forth sliding between the connecting column and the linear guide rail, the fire door can be transported to the inside of the paint spraying box for painting, avoiding exposure to the outside and causing paint to splash out and cause pollution. Moreover, excess paint can be collected inside the paint spraying box and discharged outward. Combined with the rotation between the movable column and the fixed frame, the painting angle of the fire door can also be rotated and adjusted to achieve double-sided painting.

[0021] 1. It is equipped with a fixed frame, a support plate and a fixing bolt. The support plate and the fixing bolt are respectively set at the left and right ends of the fixed frame. The support plate and the fixing bolt can stably clamp the fire door and improve the stability of the fire door during the painting process.

[0022] 2. It is equipped with a connecting column, a linear guide rail and a paint spraying box. The fire door can be driven into the paint spraying box for painting by sliding between the connecting column and the linear guide rail, which prevents the paint from splashing and causing pollution when exposed to the outside, and also facilitates the collection of excess paint.

[0023] 3. It is equipped with a movable column, a fixed rod, and a fixed cap. By rotating between the movable column and the fixed frame, the fire door can be flipped and adjusted to achieve double-sided painting. In addition, the fixed rod and fixed cap make it easy to limit the movement between the movable column and the fixed frame after adjustment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a frontal sectional view of the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of the fixed frame being removed from the paint spray box body according to this utility model;

[0027] Figure 4 This is a schematic diagram of the overall structure of the fixing frame, support plate, and fixing bolt of this utility model;

[0028] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0029] Figure 6 This is an exploded structural diagram of the movable column, fixing ring, fixing cylinder, fixing rod, and fixing cap of this utility model;

[0030] Figure 7 This is an exploded view of the support plate and fixing bolt of this utility model;

[0031] Figure 8 This is an exploded structural diagram of the connecting column and linear guide rail of this utility model;

[0032] Figure 9 This is a bottom view of the paint spray pipe, nozzle, and support rail of this utility model.

[0033] In the diagram: 1. Spray booth body; 2. Cover plate; 3. Fixing frame; 4. Movable column; 5. Fixing ring; 6. Fixing cylinder; 7. Support plate; 8. Fixing bolt; 9. Fixing rod; 10. Fixing cap; 11. Connecting column; 12. Linear guide rail; 13. Movable plate; 14. Protrusion; 15. Electric telescopic rod; 16. Spray pipe; 17. Spray nozzle; 18. Support rail. Detailed Implementation

[0034] 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 protection scope of the present utility model.

[0035] Please see Figures 1-9 .

[0036] To address the problems in existing technologies where fire doors are directly exposed during painting, resulting in paint splattering and pollution, difficulty in collecting excess paint, and inconvenience in adjusting the painting angle, as well as the cumbersome operation during double-sided painting, this solution provides an adjustable-angle painting device for marine fire doors. This device includes a paint spray box 1, a paint spray pipe 16, and nozzles 17 spaced evenly at the lower end of the paint spray pipe 16. A fixing frame 3 is installed at the spray box. Inside the box body 1, and at both ends of the fixed frame 3, there are movable columns 4 for adjusting the angle. The inner side of the movable column 4 is fixedly connected to the support plate 7 for supporting the fire door. The movable column 4, together with the fixed ring 5, drives the fire door to form a flip structure in the middle of the fixed frame 3. The front side of the fixed frame 3 is fixedly connected to the cover plate 2, and the lower end of the cover plate 2 is fixedly connected to the connecting column 11 for support. The connecting column 11 and the linear guide rail 12 fixed to the lower front side of the paint spray box body 1 form a front and rear sliding structure.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, the marine fire door to be processed is placed in the middle of the fixed frame 3, while the support plate 7 is located on the left and right sides of the fire door. Then, by pulling the support plate 7, the support plate 7 causes the fixed cylinder 6 and the fixed ring 5 to slide together, and the fixed cylinder 6 also slides together with the movable column 4, so that the support plate 7 is respectively engaged on the left and right sides of the fire door. Then, by rotating the fastening bolts used for limiting, the fixed ring 5 and the fixed cylinder 6 are limited and the support plate 7 is fixed. Then, the fixing bolts 8 threaded to the front and rear sides of the upper end of the support plate 7 are rotated, so that the lower end of the fixing bolt 8 is pressed against and squeezed onto the fire door, which facilitates the pressing and fixing of the fire door. After fixing, push the cover plate 2 backward. The cover plate 2 causes the connecting column 11 to slide between the linear guide rail 12. The ball bearing at the lower end of the connecting column 11 rolls in the linear guide rail 12. At the same time, rotate the movable plate 13. The movable plate 13 rotates at the front end of the cover plate 2. The torsion spring at the connection between the movable plate 13 and the cover plate 2 undergoes elastic deformation. When the cover plate 2 drives the fire door into the paint spray box 1, the cover plate 2 fits against the front side of the paint spray box 1. Release the movable plate 13 directly. At this time, the torsion spring returns to its elastic deformation, drives the movable plate 13 to rotate and engage with the protrusion 14, limiting the distance between the cover plate 2 and the paint spray box 1.

[0038] like Figure 1 , Figure 2 and Figure 9 As shown, the paint spraying pipe 16 is connected to the pump body and the paint tank containing the paint via a hose. When the pump body is started, the paint in the paint tank is drawn out, passes through the paint spraying pipe 16, and is then sprayed downwards by the nozzle 17 to paint the fire door. At the same time, the electric telescopic rod 15 is started. The electric telescopic rod 15 drives the paint spraying pipe 16 to slide slowly back and forth between the support rail 18, which drives the nozzle 17 to move back and forth inside the paint spraying box 1 to evenly paint the fire door. At the same time, the paint spraying is carried out in a closed manner in the paint spraying box 1 to prevent the paint from splashing out and causing environmental pollution. Moreover, the excess paint is collected in the paint spraying box 1 and can be discharged out through the valve at the bottom of the paint spraying box 1.

[0039] Furthermore, after the upper part of the fire door is painted, the cover plate 2, together with the fixing frame 3, moves the fire door out of the paint spraying box 1, as follows: Figure 4 , Figure 5 and Figure 6As shown, rotating the fixing cap 10, which is threadedly connected to the rear end of the fixing rod 9, disengages the fixing cap 10 from the fixing rod 9, thereby loosening the limit between the fixing rod 9 and the movable column 4. Then, flipping the fixing rod 9 disengages it from the movable column 4, loosening the limit between the movable column 4 and the fixing frame 3. Then, rotating the movable column 4 to 180° causes the fire door to flip, facilitating the adjustment of the painting angle of the fire door and enabling double-sided painting of the fire door. After adjustment, the fixing rod 9 is engaged in the movable column 4, and the fixing cap 10 is threadedly connected to the fixing rod 9 and attached to the rear end of the movable column 4. The fire door is then sent into the paint spray box 1 for painting the other side.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable angle spray painting device for processing marine fireproof doors, comprising a spray painting box body (1), a spray painting pipe (16) and spray nozzles (17) evenly spaced at the lower end of the spray painting pipe (16); Its features are, Also includes: A fixed frame (3) is set inside the paint spray box body (1), and the left and right ends of the fixed frame (3) are rotatably connected with movable columns (4) for adjusting the angle. The inner side of the movable column (4) is fixedly connected with a support plate (7) for supporting the fire door, and the movable column (4) together with the fixed ring (5) drives the fire door to form a flip structure in the middle of the fixed frame (3). Meanwhile, the fire door's rotation angle range in the fixed frame (3) is 0-180°; The front side of the fixed frame (3) is fixedly connected to a cover plate (2), and the lower end of the cover plate (2) is fixedly connected to a connecting column (11) for support. The connecting column (11) and the linear guide rail (12) fixed to the lower front side of the paint spray box body (1) form a front and rear sliding structure.

2. The adjustable-angle painting device for marine fireproof doors according to claim 1, characterized in that: A fixing ring (5) is fixedly connected to the inner side of the movable column (4), and a fixing cylinder (6) is sleeved on the outer side of the movable column (4). The movable column (4) and the fixing cylinder (6) form a telescopic structure.

3. The adjustable-angle painting device for marine fireproof doors according to claim 2, characterized in that: The fixed ring (5) and the fixed cylinder (6) form a left-right sliding structure, and the fixed ring (5) and the fixed cylinder (6) are fixed by fastening bolts.

4. The adjustable-angle painting device for marine fireproof doors according to claim 3, characterized in that: The fixed cylinder (6) is fixedly connected to the middle of the support plate (7), and the front and rear sides of the upper end of the support plate (7) are threaded with fixed bolts (8) for compression and limiting. The lower end of the fixed bolts (8) is tightly fitted with the fire door.

5. The adjustable-angle painting device for marine fireproof doors according to claim 1, characterized in that: The fixed frame (3) is rotatably connected to a fixed rod (9), and the fixed rod (9) is flipped and engaged in the middle of the outer side of the movable column (4). The rear end of the fixed rod (9) is threadedly connected to a fixed cap (10) for positioning, and the fixed cap (10) is fitted to the rear end of the movable column (4).

6. The adjustable-angle painting device for marine fireproof doors according to claim 1, characterized in that: The lower end of the connecting column (11) is provided with a ball bearing, which rolls at the bottom of the linear guide rail (12).

7. The adjustable-angle painting device for marine fireproof doors according to claim 1, characterized in that: Both ends of the cover plate (2) are rotatably connected to movable plates (13), and the movable plates (13) are flipped backward and engaged with the protrusions (14) fixed on the front side of the paint spray box body (1). At the same time, a torsion spring is provided at the connection between the movable plates (13) and the cover plate (2).

8. The adjustable-angle painting device for marine fireproof doors according to claim 1, characterized in that: An electric telescopic rod (15) is installed at the rear end of the paint spray box (1), and the output end of the electric telescopic rod (15) is fixedly connected to a paint spray pipe (16). The paint spray pipe (16) and the support rail (18) fixed to the inner wall of the paint spray box (1) form a front-to-back sliding structure. The paint spray pipe (16) is connected to the pump body and the paint tank via a hose.

Citation Information

Patent Citations

  • Fireproof door paint spraying device

    CN221245693U