Laminar flow hood with ventilation plate convenient to disassemble

Abstract

The utility model relates to the technical field of laminar flow covers, in particular to a laminar flow cover with a ventilation plate convenient to disassemble, which comprises a laminar flow cover body and an air inlet plate, an air inlet hole is arranged on the side wall of the laminar flow cover body, and the length and the width of the air inlet plate are both larger than those of the air inlet hole. A vertical positioning strip, a fixed hook and a movable hook are arranged on the side wall of the air inlet plate, the positioning strip is matched with the left side and the right side of the air inlet, the fixed hook is matched with the lower end of the air inlet hole, the movable hook is matched with the upper end of the air inlet, and the movable hook is in sliding fit with the air inlet plate to achieve opening; the air inlet plate is fixed without bolts through the matching of the positioning strip, the fixed hook and the movable hook, the disassembly and assembly are simple and rapid, the complexity of disassembly and assembly by using a tool is omitted, more time and labor are saved through tool-free disassembly and assembly, and the safety of high-place operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laminar flow hood technical field, concretely to a laminar flow hood of ventilation board convenient to detach. BACKGROUND

[0002] Laminar flow hood is one of the equipment that can shield and isolate operators from products, and its main purpose is to avoid product pollution. The air sucked from the clean room is then vertically passed through the operating area by the fan installed in the top pressurized cabin through HEPA filtration to provide ISO 5 (level 100) unidirectional flow air for the critical area.

[0003] In order to facilitate cleaning, the air inlet plate of the laminar flow hood is mostly of detachable structure, mainly divided into external installation type and hidden installation type, such as the laminar flow hood air inlet plate hidden installation structure disclosed by patent CN222417881U. Regardless of the installation method, currently most of them are installed and fixed by bolts, and at least four bolts are generally required for fixation. Since the laminar flow hood is used at a high place, it is very inconvenient to remove the bolts, and the bolts are easy to fall off and cannot be found during the disassembly process, affecting the reinstallation and fixation. UTILITY MODEL CONTENT

[0004] The utility model is just for the above-mentioned deficiencies existing in the prior art, and provides a laminar flow hood with ventilation plate convenient to detach. The positioning strip, the fixed hook and the movable hook are cooperated to realize the boltless fixation of the air inlet plate, which is simple and fast to disassemble and assemble, saves the trouble of using tools for disassembly and assembly, saves time and labor for tool-free disassembly and assembly, and improves the safety of high-altitude operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A laminar flow hood with ventilation plate convenient to detach, comprising a laminar flow hood body and an air inlet plate, a side wall of the laminar flow hood body is provided with an air inlet hole, the length and width of the air inlet plate are greater than the length and width of the air inlet hole, a vertical positioning strip, a fixed hook and a movable hook are arranged on the side wall of the air inlet plate, the positioning strip is matched with the left and right sides of the air inlet, the fixed hook is matched with the lower end of the air inlet, the movable hook is matched with the upper end of the air inlet, and the movable hook and the air inlet plate are slidingly matched to realize opening.

[0007] Preferably, the number of the fixed hook and the movable hook is at least two.

[0008] Preferably, a vertical guide hole is arranged on the air inlet plate, a supporting plate is connected below the guide hole, a guide rod is connected to the upper end of the supporting plate, the movable hook comprises a sliding plate attached to the outer side of the air inlet plate, a sliding block matched with the guide hole is connected to the sliding plate, a sliding hole matched with the guide rod is arranged on the sliding block, a spring connects the sliding block and the supporting plate, and a hook tip of the upper end of the sliding block is hooked on the inner wall of the laminar flow hood body.

[0009] Preferably, the lower end of the sliding plate is connected with a draw hook.

[0010] Preferably, the air inlet plate is provided with a sealing strip at the joint with the outer wall of the laminar flow cover body.

[0011] Preferably, the sealing strip is pasted on the air inlet plate through double-sided adhesive tape.

[0012] Preferably, the air holes of the air inlet plate are circular or elliptical.

[0013] Preferably, the end of the sliding block provided with a sharp is an inclined surface.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The utility model realizes the boltless fixing of the air inlet plate through the cooperation of the positioning strip, the fixed hook and the movable hook, is simple and fast to disassemble and assemble, saves the trouble of using tools for disassembly and assembly, is more time-saving and labor-saving for tool-free disassembly and assembly, and improves the safety of high-altitude operation.

[0016] 2. The utility model only needs to push the air inlet plate to realize the opening of the movable hook to complete the installation and fixing, and is convenient and fast. DETAILED DESCRIPTION

[0017] Figure 1 is a structural schematic view of the utility model;

[0018] Figure 2 is a structural schematic view of the cooperation of the rear side of the air inlet plate with the laminar flow cover body;

[0019] Figure 3 is a structural schematic view of the air inlet plate;

[0020] Figure 4 is a structural schematic view of the movable hook;

[0021] Figure 5 is Figure 3 an enlarged structural schematic view of A of the utility model;

[0022] In the drawing: 1 - laminar flow cover body; 101 - air inlet hole; 2 - air inlet plate; 201 - guide hole; 202 - supporting plate; 203 - guide rod; 204 - spring; 3 - movable hook; 301 - hook tip; 302 - sliding hole; 303 - sliding block; 304 - sliding plate; 305 - draw hook; 4 - positioning strip; 5 - fixed hook; 6 - sealing strip. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] As shown in Figure 1 , Figure 2 , a laminar flow cover with a detachable ventilation plate comprises a laminar flow cover body 1 and an air inlet plate 2, the side wall of the laminar flow cover body 1 is provided with an air inlet hole 101, the length and width of the air inlet plate 2 are greater than the length and width of the air inlet hole 101, the side wall of the air inlet plate 2 is provided with a vertical positioning strip 4, a fixed hook 5 and a movable hook 3, the positioning strip 4 cooperates with the left and right sides of the air inlet hole, which can prevent the air inlet plate 2 from sliding left and right, and the length of the positioning strip 4 is one third of the width of the air inlet hole 101, the fixed hook 5 cooperates with the lower end of the air inlet hole 101, the movable hook 3 cooperates with the upper end of the air inlet hole, and the movable hook 3 and the air inlet plate 2 are in sliding cooperation to realize opening.

[0025] In order to ensure the stability of the air inlet plate 2, the number of the fixed hook 5 and the movable hook 3 is not less than two, and two of them are symmetrically arranged and close to the two sides of the air inlet hole 101, thereby improving the firmness of the fixing.

[0026] As shown in Figure 3 , Figure 4 , Figure 5 , the air inlet plate 2 is provided with a vertical guide hole 201, the lower side of the guide hole 201 is provided with a supporting plate 202 connected with the inner side wall of the air inlet plate 2, the upper end of the supporting plate 202 is connected with a guide rod 203, the upper end of the guide rod 203 does not exceed the upper end of the guide hole 201, the movable hook 3 comprises a sliding plate 304 attached to the outer side of the air inlet plate 2, the sliding plate 304 is connected with a sliding block 303 matched with the guide hole 201, the sliding block 303 is provided with a sliding hole 302 matched with the guide rod 203, a spring 204 connects the sliding block 303 and the supporting plate 202, the upper end of the sliding block 303 is provided with a hook tip for hooking the inner wall of the laminar flow cover body 1, under the action of the spring 204, the movable hook 3 always maintains an upward state, and only when the sliding plate 304 is manually slid downward can the opening be realized.

[0027] As shown in Figure 4 , one end of the sliding block 303 is provided with an inclined surface, when installing, the air inlet plate 2 is pushed by hand, under the guidance of the inclined surface, the movable hook 3 will move downward, after the installation of the air inlet plate 2, under the action of the spring 204, the movable hook 3 resets and hooks the inner side of the laminar flow cover body 1, thereby realizing the fixing.

[0028] In order to increase the convenience of opening, the pull hook 305 is connected to the lower end of the slide plate 304.

[0029] The sealing strip 6 is arranged at the joint of the air inlet plate 2 and the outer wall of the laminar flow cover body 1, and the sealing strip 6 is pasted on the air inlet plate 2 through double-sided adhesive tape, so that the sealing strip 6 can be conveniently replaced.

[0030] The air hole of the air inlet plate 2 is circular or elliptical, and the smooth gap can reduce dust accumulation on the air hole.

[0031] During installation, the fixing hook 5 is first matched with the lower end of the air inlet hole 101, then the position of the air inlet plate 2 is adjusted left and right, so that the positioning strip 4 is matched with both ends of the air inlet hole 101, then the upper end of the air inlet plate 2 is pushed by hand, the movable hook 3 is moved downward, after the air inlet plate 2 is installed, the movable hook 3 is reset under the action of the spring 204, and the inner side of the laminar flow cover body 1 is hooked, so that the fixing is realized; during disassembly, the movable hook 3 is slid downward and the air inlet plate 2 is pulled outward through the pull hook 305, the upper end of the air inlet plate 2 is separated from the laminar flow cover body 1, then the air inlet plate 2 is lifted upward, and the air inlet plate 2 can be taken off from the air inlet hole 101.

[0032] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies thereof, the present application also intends to include these modifications and variations.

Claims

1. A laminar flow hood with easily detachable ventilation panels, comprising a laminar flow hood body and an air inlet plate, wherein the side wall of the laminar flow hood body is provided with air inlet holes, characterized in that: The length and width of the air inlet plate are both greater than the length and width of the air inlet hole. The side wall of the air inlet plate is provided with a vertical positioning strip, a fixed hook and a movable hook. The positioning strip cooperates with the left and right sides of the air inlet. The fixed hook cooperates with the lower end of the air inlet hole and the movable hook cooperates with the upper end of the air inlet. The movable hook and the air inlet plate slide together to achieve opening.

2. The laminar flow hood with easily detachable ventilation panels as described in claim 1, characterized in that: The number of both the fixed hook and the movable hook is at least two.

3. A laminar flow hood with an easily detachable ventilation panel as described in claim 1, characterized in that: The air inlet plate is provided with a vertical guide hole, a support plate is connected below the guide hole, and a guide rod is connected to the upper end of the support plate. The movable hook includes a sliding plate attached to the outside of the air inlet plate. A slider that cooperates with the guide hole is connected to the sliding plate. The slider is provided with a sliding hole that cooperates with the guide rod. A spring connects the slider and the support plate. The upper end of the slider is provided with a hook tip that hooks onto the inner wall of the laminar flow hood.

4. A laminar flow hood with an easily detachable ventilation panel as described in claim 3, characterized in that: The lower end of the skateboard is connected to a hook.

5. A laminar flow hood with an easily detachable ventilation panel as described in claim 1, characterized in that: A sealing strip is provided at the joint between the air inlet plate and the outer wall of the laminar flow hood.

6. A laminar flow hood with an easily detachable ventilation panel as described in claim 5, characterized in that: The sealing strip is attached to the air inlet plate with double-sided adhesive.

7. A laminar flow hood with easily detachable ventilation panels as described in claim 1, characterized in that: The air inlet of the air inlet plate has circular or elliptical air holes.

8. A laminar flow hood with an easily detachable ventilation panel as described in claim 3, characterized in that: The slider has an inclined surface at one end of its tip.

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