A ventilation hood for vacuum coating pretreatment

Abstract

The utility model discloses a kind of ventilation hoods for vacuum coating pretreatment, including rectangular frame, top plate is equipped on the rectangular frame, rectangular frame is fixed at the top of top plate, two ventilation pipes are equipped on top plate, the left side of rectangular frame is equipped with two support rods one, the right side of rectangular frame is equipped with two support rods two, the utility model utilizes rectangular frame, support rod one, support rod two, side plate one, side plate two and top plate to form ventilation hood, when carrying out the pretreatment of alcohol wiping to plating piece, plating piece is placed in the lower side of ventilation hood to operate, the air under the ventilation hood is extracted by ventilation pipe, the alcohol volatilized when carrying out the pretreatment under the ventilation hood is extracted quickly with the air under the ventilation hood, the amount of volatilized alcohol escaping to the surrounding is reduced, to enhance the absorption efficiency of volatilized alcohol by ventilation system.

Description

Technical Field

[0001] This utility model relates to a ventilation hood for vacuum coating pretreatment. Background Technology

[0002] Vacuum coating is a technique that uses high vacuum conditions to heat and evaporate metallic or non-metallic materials, which then condense onto the surface of the workpiece to form a thin film. Before vacuum coating, the workpiece typically requires pretreatment, i.e., wiping its surface to ensure cleanliness and prevent contamination from affecting the subsequent coating quality. During the wiping process, alcohol is usually used to clean the surface, leveraging its disinfecting and evaporating properties to enhance the pretreatment effect. However, the alcohol volatilized during pretreatment needs to be absorbed by the factory's ventilation system to prevent its accumulation in the factory air and potential safety hazards. Therefore, the efficiency of the ventilation system in vacuum coating factories in absorbing volatilized alcohol is crucial for eliminating safety hazards. Thus, developing a ventilation hood for vacuum coating pretreatment to enhance the ventilation system's efficiency in absorbing volatilized alcohol is of significant practical importance. Summary of the Invention

[0003] The purpose of this invention is to provide a ventilation hood for vacuum coating pretreatment to solve the problems mentioned in the background art.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A ventilation hood for vacuum coating pretreatment includes a rectangular frame with a top plate fixed to the top of the top plate. Two ventilation pipes are located on the top plate. Two support rods (first type) are located on the left side of the rectangular frame, and two support rods (second type) are located on the right side. The two support rods (first type) are connected to the front and rear corners on the left side of the rectangular frame, and the two support rods (second type) are connected to the front and rear corners on the right side of the rectangular frame. A side plate (second type) is located between the two support rods (first type) and between the two support rods (second type). A side plate (first type) is located between the support rods (first type) and (second type) on the front and rear sides of the rectangular frame. A bent edge (first type) is located on one side of each side plate (first type), and a bent edge (second type) is located on one side of each side plate (second type). A lifting plate is located between any two adjacent bent edges (first type and second type).

[0006] Preferably, the lifting plate has an L-shaped structure, and the lifting plate is connected to the first bent edge and the second bent edge by bolts, and the lifting plate is provided with lifting holes.

[0007] Preferably, the side plate and the bent edge are an integrated structure, the side plate is inclined, and the bent edge is horizontal.

[0008] Preferably, the second side plate and the second bent edge are an integrated structure, the second side plate is inclined, and the second bent edge is horizontal.

[0009] Preferably, two reinforcing beams are provided between the front and rear sides of the rectangular frame, and the reinforcing beams are connected to the top plate by bolts.

[0010] The beneficial effects of this utility model are as follows: This utility model utilizes a rectangular frame, support rod one, support rod two, side plate one, side plate two, and top plate to form a ventilation hood. When performing alcohol wiping pretreatment on the plated parts, the plated parts are placed under the ventilation hood for operation. The factory's ventilation system is activated to extract air, and the air under the ventilation hood is drawn away through the ventilation pipe. The alcohol that evaporates during pretreatment under the ventilation hood is quickly drawn away along with the air under the ventilation hood, reducing the amount of alcohol that evaporates and disperses to the surroundings, thereby enhancing the absorption efficiency of the ventilation system for alcohol that evaporates. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this is not a limitation on the protection scope of this utility model.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a top view of the present invention;

[0014] Figure 3 This is a side view of the present invention;

[0015] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0016] Figure 5 This utility model Figure 4 A schematic diagram of the structure of the middle hoisting piece.

[0017] In the diagram: 11. Rectangular frame; 12. Support rod one; 13. Support rod two; 14. Side plate one; 15. Ventilation pipe; 16. Side plate two; 17. Bent edge one; 18. Bent edge two; 19. Top plate; 20. Reinforcing beam; 21. Lifting plate; 22. Lifting hole. Detailed Implementation

[0018] See Figures 1 to 5The diagram shows a ventilation hood for vacuum coating pretreatment, comprising a rectangular frame 11 with a top plate 19 fixed to the top of the top plate 19. Two ventilation pipes 15 are mounted on the top plate 19. Two support rods 12 are located on the left side of the rectangular frame 11, and two support rods 13 are located on the right side. The rectangular frame 11 is a rectangular frame structure welded from angle steel. Both support rods 12 and 13 are made of angle steel. The two support rods 12 are connected to the front and rear corners on the left side of the rectangular frame 11, and the two support rods 13 are connected to the front and rear corners on the right side of the rectangular frame 11. Both support rods 12 and 13 are fixedly connected to the rectangular frame 11. A side plate 16 is located between the two support rods 12, with its edges welded to the rectangular frame 11 and the two support rods 12. A side plate 16 is also located between the two support rods 13. Side plate 16, the edges of which are welded to the rectangular frame 11 and the two support rods 13 respectively. A side plate 14 is provided between the support rods 12 and 13 on the front side of the rectangular frame 11. This side plate 14 is welded to the rectangular frame 11 and the support rods 12 and 13 on the front side of the rectangular frame 11. A side plate 14 is also provided between the support rods 12 and 13 on the rear side of the rectangular frame 11. This side plate 14 is welded to the rectangular frame 11. 1. The support rod 12 and support rod 23 on the rear side of the rectangular frame 11 are welded together. The rectangular frame 11, support rod 12, support rod 23, side plate 14, side plate 26 and top plate 19 together form a cover-shaped structure, which is the main body of the ventilation cover. A bent edge 17 is provided on one side of the side plate 14, and a bent edge 28 is provided on one side of the side plate 26. A lifting plate 21 is provided between any adjacent bent edges 17 and bent edges 28.

[0019] Furthermore, the lifting plate 21 has an L-shaped structure, and the lifting plate 21 is connected to the first bent edge 17 and the second bent edge 18 by bolts. The lifting plate 21 is provided with a lifting hole 22. One end of the steel cable is passed through the lifting hole 22 and tied, and the other end of the steel cable is fixed to the relevant support on the beam or roof of the factory, so that the entire ventilation hood can be suspended.

[0020] Furthermore, the side plate 14 and the bent edge 17 are an integrated structure, with the side plate 14 being inclined and the bent edge 17 being horizontal.

[0021] Furthermore, the second side plate 16 and the second bent edge 18 are an integrated structure, the second side plate 16 is inclined, and the second bent edge 18 is horizontal.

[0022] Furthermore, two reinforcing beams 20 are provided between the front and rear sides of the rectangular frame 11, and the reinforcing beams 20 are connected to the top plate 19 by bolts; the reinforcing beams 20 form a support in the middle of the rectangular frame 11, which can enhance its structural stability.

[0023] The working principle of this utility model is as follows: the other end of the steel cable is fixed to the relevant support on the beam or roof of the vacuum coating factory, which suspends the entire ventilation hood. Then, the ventilation pipe 15 is connected to the factory's ventilation system through a pipe. When the coated parts are pre-treated by wiping with alcohol, the coated parts are placed under the ventilation hood for operation. The factory's ventilation system is started to extract air, and the air under the ventilation hood is drawn away through the ventilation pipe 15. The alcohol that evaporates during the pre-treatment under the ventilation hood is quickly drawn away along with the air under the ventilation hood, reducing the amount of alcohol that evaporates and thus enhancing the absorption efficiency of the ventilation system for alcohol.

[0024] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A ventilation hood for vacuum coating pretreatment, characterized in that: The device includes a rectangular frame with a top plate fixed to it. Two ventilation pipes are located on the top plate. Two support rods (first type) are located on the left side of the rectangular frame, and two support rods (second type) are located on the right side. The first two support rods are connected to the front and rear corners on the left side of the rectangular frame, and the second two support rods are connected to the front and rear corners on the right side of the rectangular frame. A side plate (second type) is located between the first and second support rods. A side plate (first type) is located between the first and second support rods on the front side of the rectangular frame, and a side plate (first type) is also located between the first and second support rods on the rear side of the rectangular frame. A bent edge (first type) is located on one side of each side plate (first type), and a bent edge (second type) is located on one side of each side plate (second type). A lifting plate is located between any two adjacent bent edges (first and second types).

2. The ventilation hood for vacuum coating pretreatment according to claim 1, characterized in that: The lifting plate has an L-shaped structure and is connected to the first bent edge and the second bent edge by bolts. The lifting plate is provided with lifting holes.

3. The ventilation hood for vacuum coating pretreatment according to claim 1, characterized in that: The side plate and the bent edge are an integrated structure. The side plate is inclined and the bent edge is horizontal.

4. A ventilation hood for vacuum coating pretreatment according to claim 1, characterized in that: The second side plate and the second bent edge are an integrated structure. The second side plate is inclined and the second bent edge is horizontal.

5. A ventilation hood for vacuum coating pretreatment according to claim 1, characterized in that: Two reinforcing beams are provided between the front and rear sides of the rectangular frame, and the reinforcing beams are connected to the top plate by bolts.

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