Drying device for anti-theft door paint spraying

By introducing components such as protective covers, sealing plates, purification and adsorption layers, and buffer boxes into the anti-theft door paint drying device, the problems of harmful gas emission and poor spraying effect have been solved, achieving health protection and efficiency improvement.

CN224195177UActive Publication Date: 2026-05-05HEBEI LONGRUI FIRE FIGHTING EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI LONGRUI FIRE FIGHTING EQUIPMENT CO LTD
Filing Date
2025-03-18
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing anti-theft door paint drying equipment releases harmful substances during the drying process, affecting the health of workers and the coating effect.

Method used

The system employs components such as a protective cover, a closed panel, an electric telescopic rod, a fan, a heating box, a purification adsorption layer, and a buffer box to form a closed system. This system purifies and recycles the drying air, preventing the emission of harmful gases and protecting the coating effect.

Benefits of technology

It effectively seals in harmful gases, protects the health of workers, improves the coating effect, utilizes residual heat, and simplifies operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224195177U_ABST
    Figure CN224195177U_ABST
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Abstract

The drying device comprises a protective cover supported through a fixing frame, the two ends of the protective cover are each provided with a sealing plate in a longitudinal sliding fit mode, a conveying belt is arranged on the inner wall of the protective cover, and electric telescopic rods are arranged on the outer walls of the two sides of the protective cover. The telescopic ends of the electric telescopic rods are connected with the sealing plate, a fan is arranged on the outer side of the protective cover, the input end of the fan is connected with a heating box, electric guide rails are arranged on the inner walls of the upper end and the lower end of the protective cover correspondingly, buffer boxes are fixed to the moving ends of the electric guide rails, and the output end of the fan is connected with a conveying pipe. And the conveying pipe is communicated with the buffer tank through a connecting hose. According to the paint drying device, the sealing plate and the electric telescopic rod are arranged, so that the protective cover is sealed in the drying process, and harmful gas emitted by paint in the drying process is prevented from drifting away in air and affecting workers.
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Description

Technical Field

[0001] This utility model relates to the field of security door manufacturing technology, and in particular to a drying device for spray painting security doors. Background Technology

[0002] The full name of a security door is "anti-theft security door". It combines the functions of anti-theft and security. It is equipped with an anti-theft lock and can resist abnormal opening under certain conditions for a certain period of time. It is a door with a certain security protection performance and meets the corresponding anti-theft security level. During the production process, the outer surface of the security door needs to be sprayed with a layer of paint to improve the anti-oxidation and aesthetics of the security door. After spraying, a drying device is installed to accelerate the drying of the paint.

[0003] A search revealed Chinese patent publication number CN215500495U, which discloses a drying device for spraying anti-theft doors. The device includes a support plate with a drying mechanism on it. A clamping mechanism is located in the middle of the support plate, and an anti-theft door body is mounted on the clamping mechanism. A rotating mechanism is located on one side of the support plate. The drying mechanism includes a mounting plate fixedly mounted on the support plate. A motor is fixedly mounted on the side of the mounting plate away from the support plate. The output end of the motor rotates through the mounting plate and a drive sprocket is fixedly mounted at its end. Symmetrically distributed rotating shafts are rotatably mounted on the side of the mounting plate closest to the support plate. A driven sprocket is fixedly mounted at the end of each rotating shaft away from the mounting plate, and the driven sprockets are mirror-distributed around the center of the drive sprocket.

[0004] The patented technology exposes the security door and drying structure to the environment during the drying process, while the paint used for spraying releases a variety of harmful substances during the drying process. These harmful substances, when released into the air, can affect the health of workers. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a drying device for spray painting security doors.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A drying device for spray painting security doors includes a protective cover supported by a fixed frame. Both ends of the protective cover are longitudinally slidably fitted with a sealing plate. A conveyor belt is provided on the inner wall of the protective cover. Electric telescopic rods are provided on both outer walls of the protective cover. The telescopic ends of the electric telescopic rods are connected to the sealing plates.

[0008] As a further improvement of this utility model: a fan is provided on the outside of the protective cover, and a heating box is connected to the input end of the fan.

[0009] As a further improvement of this utility model: the heating box is equipped with a filter plate and a heating tube, and the heating box is also equipped with a purification adsorption layer.

[0010] As a further improvement of this utility model: electric guide rails are provided on the inner walls of both the upper and lower ends of the protective cover, and a buffer box is fixed on the moving end of the electric guide rail.

[0011] As a further improvement of this utility model: the output end of the fan is connected to a conveying pipe, and the conveying pipe is connected to the buffer box through a connecting hose.

[0012] As a further improvement of this utility model: both ends of the inner wall at the bottom of the protective cover are provided with air intake ports, and the air intake ports are connected to the heating box through air intake pipes.

[0013] As a further embodiment of this utility model: the buffer box includes a box body and an air outlet, and the inner wall of the box body is provided with a first buffer plate and a second buffer plate.

[0014] As a further embodiment of this utility model: the first buffer plate is composed of a plurality of triangular prisms arranged in parallel gaps, the inner wall of the second buffer plate is provided with an array of oblique holes, the air outlet is opened at the bottom of the box, and the air outlet is misaligned with the oblique holes of the second buffer plate.

[0015] Compared with the prior art, this utility model provides a drying device for spray painting security doors, which has the following beneficial effects:

[0016] 1. This utility model, by setting up a sealing plate and an electric telescopic rod, seals the protective cover during the drying process, preventing harmful gases emitted by the paint from drifting into the air and affecting the workers.

[0017] 2. This utility model, by setting an air intake, an air intake pipe and a purification adsorption layer, allows the air in the protective cover to circulate in the heating box through the air intake and air intake pipe during the air delivery process of the fan. The air in the protective cover is purified by the purification adsorption layer, and at the same time, the hot air can be circulated and heated, effectively utilizing the residual heat of the air after drying.

[0018] 3. This utility model, by setting up a buffer box, buffers the hot air for drying multiple times, avoiding direct air impact on the paint surface of the security door, which would cause the paint on the security door to disperse and affect the spraying effect of the security door.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of a drying device for spraying paint on security doors proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of a drying device for spraying paint on security doors proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the heating box of the drying device for spray painting of anti-theft doors proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the buffer box of a drying device for spraying paint on a security door, as proposed in this utility model.

[0024] In the diagram: 1. Protective cover; 2. Enclosed plate; 3. Electric telescopic rod; 4. Electric guide rail; 5. Buffer box; 6. Connecting hose; 7. Air inlet; 8. Air suction pipe; 9. Heating box; 10. Fan; 11. Delivery pipe; 12. Box body; 13. First buffer plate; 14. Second buffer plate; 15. Air outlet; 16. Filter plate; 17. Purification adsorption layer; 18. Heating pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1: A drying device for spray painting security doors, such as... Figures 1 to 4As shown, the device includes a protective cover 1 supported by a fixed frame. A conveyor belt is installed on the inner wall of the protective cover 1. Electric guide rails 4 are installed on the inner walls of both the upper and lower ends of the protective cover 1. A buffer box 5 is fixed to the moving end of each electric guide rail 4. A fan 10 is installed on the outer side of the protective cover 1. The input end of the fan 10 is connected to a heating box 9. A filter plate 16 and a heating pipe 18 are installed inside the heating box 9. The output end of the fan 10 is connected to a conveying pipe 11, which is connected to the buffer box 5 via a connecting hose 6. The connecting hose 6 is limited by a connecting frame that slides with the protective cover 1. Both ends of the protective cover 1 are longitudinally slidably fitted with a sealing plate 2. Both sides of the outer wall of the protective cover 1 are provided with an electric telescopic rod 3. The telescopic end of the electric telescopic rod 3 is connected to the sealing plate 2. Both ends of the bottom inner wall of the protective cover 1 are provided with an air intake 7. The air intake 7 is connected to the heating box 9 through an air intake pipe 8. A purification adsorption layer 17 is provided between the filter plate 16 and the heating pipe 18. The purification adsorption layer 17 can be filled with activated carbon.

[0028] During drying, the external conveying equipment sends the painted security door into the protective cover 1. The electric telescopic rod 3 drives the closing plate 2 to descend and close the protective cover 1, preventing harmful gases emitted by the paint during the drying process from drifting into the air. The fan 10 supplies air to the buffer box 5 through the conveying pipe 11 and the connecting hose 6. The air intake of the fan 10 will create a negative pressure in the heating box 9. The air in the protective cover 1 enters the heating box 9 through the air intake port 7 and the air intake pipe 8 for circulation. After being filtered by the filter plate 16, the air in the protective cover 1 is purified by the purification adsorption layer 17. The heating pipe 18 heats the air, which can circulate and heat the hot air, effectively utilizing the residual heat of the air after drying. The hot air is sprayed out from the buffer box 5.

[0029] By setting up a sealing plate 2 and an electric telescopic rod 3, the protective cover 1 is sealed during the drying process to prevent harmful gases emitted by the paint from drifting into the air and affecting the staff.

[0030] By setting up an air intake 7, an air intake pipe 8, and a purification adsorption layer 17, during the air delivery process of the fan 10, the air in the protective cover 1 enters the heating box 9 through the air intake 7 and the air intake pipe 8 for circulation. The air in the protective cover 1 is purified by passing through the purification adsorption layer 17, and at the same time, the hot air can be circulated and heated, effectively utilizing the residual heat of the dried air.

[0031] Example 2: A drying device for spray painting security doors. This example is based on Example 1 and makes the following improvements, such as... Figure 1 , Figure 4As shown, the buffer box 5 includes a box body 12 and an air outlet 15. The inner wall of the box body 12 is provided with a first buffer plate 13 and a second buffer plate 14. The first buffer plate 13 is composed of a plurality of triangular prisms arranged in parallel gaps. The inner wall of the second buffer plate 14 is provided with an array of oblique holes. The air outlet 15 is located at the bottom of the box body 12, and the air outlet 15 is offset from the oblique holes of the second buffer plate 14.

[0032] When hot air enters the housing 12 through the connecting hose 6, the first buffer plate 13 will block and buffer the airflow, slowing it down. Then, when the airflow passes through the second buffer plate 14, it will be blocked and buffered again by the inclined inner wall of the second buffer plate 14. The buffered airflow will flow out obliquely from the air outlet 15.

[0033] By setting up buffer box 5, the hot air for drying is buffered multiple times, preventing the air from directly impacting the paint on the surface of the security door, which would cause the paint on the security door to disperse and affect the spraying effect of the security door.

[0034] Working principle: During drying, the external conveying equipment sends the painted security door into the protective cover 1. The electric telescopic rod 3 drives the closing plate 2 to descend and close the protective cover 1. The fan 10 delivers air to the buffer box 5 through the conveying pipe 11 and the connecting hose 6. The air intake of the fan 10 will create a negative pressure in the heating box 9. The air in the protective cover 1 enters the heating box 9 through the air intake port 7 and the air intake pipe 8 and circulates. After the air in the protective cover 1 is filtered by the filter plate 16 and purified by the purification adsorption layer 17, the heating pipe 18 heats it. After the hot air enters the box 12 through the connecting hose 6, the first buffer plate 13 will block and buffer the airflow, slowing down the airflow. Then, when the airflow passes through the second buffer plate 14, it will be blocked and buffered again by the inclined inner wall of the second buffer plate 14. The buffered airflow flows out obliquely from the air outlet 15.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drying device for spray painting security doors, comprising a protective cover (1) supported by a fixing frame, characterized in that, The protective cover (1) has a sealing plate (2) that slides longitudinally at both ends. The inner wall of the protective cover (1) is provided with a conveyor belt. The outer walls on both sides of the protective cover (1) are provided with electric telescopic rods (3). The telescopic ends of the electric telescopic rods (3) are connected to the sealing plate (2). The outer side of the protective cover (1) is provided with a fan (10). The input end of the fan (10) is connected to a heating box (9). The inner walls at both ends of the protective cover (1) are provided with electric guide rails (4). The moving end of the electric guide rails (4) is fixed with a buffer box (5). The output end of the fan (10) is connected to a conveying pipe (11). The conveying pipe (11) is connected to the buffer box (5) through a connecting hose (6). The inner walls at both ends of the bottom of the protective cover (1) are provided with air inlets (7). The air inlets (7) are connected to the heating box (9) through an air inlet pipe (8).

2. The drying device for spray painting security doors according to claim 1, characterized in that, The heating box (9) is equipped with a filter plate (16) and a heating tube (18), and a purification adsorption layer (17) is provided between the filter plate (16) and the heating tube (18).

3. The drying device for spray painting security doors according to claim 1, characterized in that, The buffer box (5) includes a box body (12) and an air outlet (15). The inner wall of the box body (12) is provided with a first buffer plate (13) and a second buffer plate (14).

4. The drying device for spray painting security doors according to claim 3, characterized in that, The first buffer plate (13) is composed of multiple triangular prisms arranged in parallel gaps. The inner wall of the second buffer plate (14) is provided with an array of oblique holes. The air outlet (15) is located at the bottom of the box (12), and the air outlet (15) is misaligned with the oblique holes of the second buffer plate (14).

Citation Information

Patent Citations

  • Electrohydraulic control system of harvesting and bundling all-in-one machine

    CN215500495U