Air supplement type self-adjusting ventilation device for purifying workshop

Abstract

The utility model relates to the technical field of workshop ventilation, in particular to an air supplement type self-adjusting ventilation device for a purification workshop, which comprises a ventilation pipeline, one side of the ventilation pipeline is fixedly connected with a box body, and filter screens capable of being movably taken out are symmetrically arranged in the ventilation pipeline. A rotatable fan is arranged in the ventilation pipeline, and a supporting rod and a movable plate are arranged on the ventilation pipeline, wherein the fan can be taken out of the supporting rod. A vertically-arranged limiting handle is rotated by 180 degrees, then a filter screen is directly taken out of the interior of the ventilation pipeline through the limiting handle, compared with cleaning with a brush, the mode that the filter screen is directly replaced is simpler and more convenient, a second bolt is screwed out, then a supporting rod and a fan are moved out of the interior of the ventilation pipeline through a moving handle and a moving plate, and cleaning is more convenient. And after the fan is taken out, dust on fan blades of the fan can be conveniently cleaned, and the fan can be mounted after being cleaned, so that the dust on the fan blades can be prevented from influencing the use of the fan.

Description

Technical Field

[0001] The utility model relates to the technical field of workshop ventilation, in particular to a make-up air type self-adjusting ventilation device for a purification workshop. Background Technique

[0002] The environmental requirements of a purification workshop are generally relatively high. Providing a stable environment for workers is also crucial for the quality of the products produced. However, the air in the purification workshop must be exchanged with the outside air. In addition to bringing the required oxygen to the people in the purification workshop, the outside air will also bring substances such as bacteria and dust in the outside air into the purification workshop. At the same time, during the air exchange process, some substances generated in the purification workshop will also be brought into the air, and these substances may cause environmental pollution.

[0003] After retrieval, a patent document with the publication number of CN219389971U discloses a make-up air type self-adjusting ventilation device for a purification workshop, including a ventilation duct. A double-output shaft motor is fixedly connected to the right side of the ventilation duct. Rotating rods are fixedly connected to both the upper and lower sides of the double-output shaft motor. A first belt is movably connected to the outside of the lower rotating rod. A fan blade is movably connected to the left side of the first belt. Stabilizing rods are fixedly connected to both the upper and lower sides of the fan blade. A filter screen is movably connected to the outside of the stabilizing rod.

[0004] In the above-mentioned prior art, although by setting the fan blade, the air flow inside the ventilation duct can be adjusted, improving the adjustability of the device. By setting the filter screen, impurities generated outside and inside the workshop can be blocked by the filter screen, avoiding the phenomenon of impurity pollution of the environment, and improving the practicability of the device. By setting the moving plate, the brush can move, so as to clean the surface of the filter screen through the brush, making the impurities move to the inside of the dust collection box, avoiding the phenomenon that dust affects the ventilation of the filter screen;

[0005] However, the filter screen is fixed inside the ventilation duct, and the dust on the surface of the filter screen is cleaned by a horizontally moving brush. The cleaning effect is poor, and it is very difficult to clean the dust into the inside of the dust collection box. This troublesome way of cleaning dust is rather cumbersome, far less simple and convenient than directly replacing the filter screen. At the same time, after the fan blades on the fan are used for a long time, a layer of dust will also adhere to the surface of the fan blades. If not cleaned, it will affect the use of the fan. Therefore, a make-up air type self-adjusting ventilation device for a purification workshop is now proposed. Content of the Utility Model

[0006] The purpose of the present utility model is to solve the problems in the prior art that this troublesome way of cleaning dust is rather cumbersome and far from as simple and convenient as directly replacing the filter screen. At the same time, after the fan blades are used for a long time, a layer of dust will also adhere to the surface of the fan blades, which will affect the use of the fan if not cleaned. A make-up air type self-adjusting ventilation device for a purification workshop is proposed.

[0007] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0008] A make-up air type self-adjusting ventilation device for a purification workshop, including a ventilation duct, one side of the ventilation duct is fixedly connected with a box body, filter screens that can be moved out are symmetrically arranged inside the ventilation duct, a rotatable fan is arranged inside the ventilation duct, and a support rod and a moving plate for taking out the fan are arranged on the ventilation duct.

[0009] Preferably, moving grooves are symmetrically opened on one side of the ventilation duct located inside the box body, the inner wall of the moving groove is slidably connected with a grid frame arranged in a "return" shape in cross section, and the inner wall of the grid frame is fixedly connected with the filter screen.

[0010] Preferably, one side of the grid frame located inside the box body is connected by a bearing with an L-shaped limiting handle, and two L-shaped limiting baffles are symmetrically fixedly connected to one side of the ventilation duct located inside the box body.

[0011] Preferably, a support plate for storing the filter screen is fixedly connected to the inner wall of the box body, and a box door is connected to one side of the box body through symmetrically arranged hinges.

[0012] Preferably, a moving opening is opened on the outer wall of the ventilation duct, the moving plate is slidably connected with the inner wall of the moving opening, one side of the moving plate located inside the ventilation duct is fixedly connected with the support rod, an installation groove is opened at the top of the support rod, a servo motor is inserted into the installation groove, a driving rod is arranged at the output end of the servo motor, and the top of the driving rod is fixedly connected with the bottom of the fan.

[0013] Preferably, a threaded hole communicating with the inside of the installation groove is opened at one end of the support rod, a fixing groove is opened on the outer wall of the servo motor, a first bolt is inserted into the fixing groove, and the first bolt is threadedly connected with the threaded hole.

[0014] Preferably, mounting plates are fixedly connected to both sides of the moving plate located outside the ventilation duct, placing grooves are symmetrically opened on the outer wall of the ventilation duct, the mounting plates are slidably connected with the inner walls of the placing grooves, threaded grooves are opened on the placing grooves, mounting holes are opened on the mounting plates, a second bolt passing through the mounting holes is threadedly connected with the threaded grooves, and a moving handle is fixedly connected to one side of the moving plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. When this device is in use, rotate the vertically arranged limiting handle by 180°, and then directly take out the filter screen from the inside of the ventilation duct through the limiting handle, and directly insert the clean filter screen inside the box body into the inside of the ventilation duct. Compared with cleaning with a brush, this method of directly replacing the filter screen is simpler and more convenient.

[0017] 2. When this device is in use, unscrew the second bolt, and then move the support rod and the fan out of the inside of the ventilation duct through the moving handle and the moving plate. After the fan is taken out, it is convenient to clean the dust on the fan blades. After cleaning, it can be reinstalled, which can avoid the influence of the dust on the fan blades on the use of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is a left three-dimensional structural schematic diagram of a make-up air type self-regulating ventilation device for a purification workshop proposed by the present utility model;

[0019] Figure 2 FIG. 2 is a right three-dimensional structural schematic diagram of a make-up air type self-regulating ventilation device for a purification workshop proposed by the present utility model;

[0020] Figure 3 FIG. 3 is an internal three-dimensional structural schematic diagram of a make-up air type self-regulating ventilation device for a purification workshop proposed by the present utility model;

[0021] Figure 4 FIG. 4 is a three-dimensional structural connection schematic diagram of a grid, a filter screen, a limiting handle, and a limiting baffle;

[0022] Figure 5 FIG. 5 is a three-dimensional structural connection schematic diagram of a fan, a servo motor, a first bolt, and a support rod.

[0023] In the figures: 1. Ventilation duct; 2. Box body; 3. Filter screen; 4. Fan; 5. Support rod; 6. Moving plate; 7. Moving groove; 8. Grid; 9. Limiting handle; 10. Limiting baffle; 11. Support plate; 12. Box door; 13. Moving opening; 14. Servo motor; 15. First bolt; 16. Second bolt; 17. Moving handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0025] Reference Figures 1 - 5 , a make-up air type self-regulating ventilation device for a purification workshop, including a ventilation duct 1, a box body 2 is fixedly connected to one side of the ventilation duct 1, filter nets 3 that can be movably taken out are symmetrically arranged inside the ventilation duct 1, a rotatable fan 4 is arranged inside the ventilation duct 1, and a support rod 5 and a moving plate 6 for taking out the fan 4 are arranged on the ventilation duct 1.

[0026] It should be noted that for the servo motor 14, the specific model and specification need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be described, and both can be powered by external equipment and controlled to be turned on and off;

[0027] Further, moving grooves 7 are symmetrically opened on one side of the ventilation duct 1 inside the box body 2, a net rack 8 with a "return" shaped cross-section is slidably connected to the inner wall of the moving groove 7, and the inner wall of the net rack 8 is fixedly connected to the filter net 3.

[0028] It should be noted that by slidably connecting the net rack 8 with the inner wall of the moving groove 7, it is convenient to disassemble and take out the filter net 3, and through the moving groove 7, the filter net 3 can be supported.

[0029] Further, one side of the net rack 8 inside the box body 2 is connected by a bearing to an L-shaped limit handle 9, and L-shaped limit baffles 10 are symmetrically and fixedly connected to one side of the ventilation duct 1 inside the box body 2.

[0030] It should be noted that under the action of gravity, the limit handle 9 will be vertically arranged, so that the limit handle 9 will be blocked by the limit baffle 10, and the position of the filter net 3 can be limited, and the filter net 3 can be prevented from being randomly removed from the inside of the moving groove 7.

[0031] It should be noted that when rotating the limit handle 9, the limit handle 9 can be controlled not to be blocked by the limit baffle 10, and then the filter net 3 can be taken out.

[0032] Further, a support plate 11 for storing the filter net 3 is fixedly connected to the inner wall of the box body 2, and a box door 12 is connected to one side of the box body 2 through symmetrically arranged hinges.

[0033] It should be noted that spare clean filter nets 3 can be placed on both the support plate 11 and the inner bottom of the box body 2, which is convenient for replacement.

[0034] Further, a moving opening 13 is formed in the outer wall of the ventilation duct 1. The moving plate 6 is slidably connected to the inner wall of the moving opening 13. One side of the moving plate 6 located inside the ventilation duct 1 is fixedly connected to the support rod 5. An installation groove is formed at the top of the support rod 5. A servo motor 14 is inserted into the installation groove. A driving rod is arranged at the output end of the servo motor 14. The top of the driving rod is fixedly connected to the bottom of the fan 4.

[0035] It should be noted that the servo motor 14 will control the rotation of the fan 4 through the driving rod. When the fan 4 rotates clockwise and counterclockwise, the air inside the workshop can be discharged through the ventilation duct 1, or the outside air can be discharged into the workshop.

[0036] Further, a threaded hole communicating with the inside of the installation groove is formed at one end of the support rod 5. A fixing groove is formed on the outer wall of the servo motor 14. A first bolt 15 is inserted into the fixing groove. The first bolt 15 is threadedly connected to the threaded hole.

[0037] It should be noted that when the first bolt 15 is screwed into the threaded hole and inserted into the fixing groove, the position of the servo motor 14 can be fixed, and at the same time, it is convenient to take out the servo motor 14.

[0038] Further, mounting plates are fixedly connected to both sides of the moving plate 6 located outside the ventilation duct 1. Placing grooves are symmetrically formed on the outer wall of the ventilation duct 1. The mounting plates are slidably connected to the inner walls of the placing grooves. Threaded grooves are formed in the placing grooves. Mounting holes are formed in the mounting plates. A second bolt 16 passing through the mounting hole is threadedly connected to the threaded groove. A moving handle 17 is fixedly connected to one side of the moving plate 6.

[0039] It should be noted that when the second bolt 16 is inserted into the mounting hole and screwed into the threaded groove, the positions of the moving plate 6 and the fan 4 can be installed and fixed, and at the same time, it is convenient to take out the fan 4 for cleaning.

[0040] The working principle of the present utility model:

[0041] First, rotate the vertically arranged limit handle 9 by 180°, and then directly take out the filter screen 3 from the inside of the ventilation duct 1 through the limit handle 9, and directly insert the clean filter screen 3 inside the box body 2 into the ventilation duct 1. Compared with cleaning with a brush, this direct replacement method of the filter screen 3 is simpler and more convenient.

[0042] Then, unscrew the second bolt 16, and then move the support rod 5 and the fan 4 out of the inside of the ventilation duct 1 through the moving handle 17 and the moving plate 6. After the fan 4 is taken out, it is convenient to clean the dust on the fan blades of the fan 4. After cleaning, it can be reinstalled, which can avoid the influence of the dust on the fan blades on the use of the fan 4.

[0043] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A make-up air type self-regulating ventilation device for a purification workshop, comprising a ventilation duct (1), characterized in that, One side of the ventilation duct (1) is fixedly connected to a box body (2). Inside the ventilation duct (1), filter nets (3) that can be moved out and taken out are symmetrically arranged. Inside the ventilation duct (1), a rotatable fan (4) is arranged. On the ventilation duct (1), there are a support rod (5) and a moving plate (6) for taking out the fan (4).

2. The air make-up type self-regulating ventilation device for a purification workshop according to claim 1, wherein, On one side of the ventilation duct (1) located inside the box body (2), moving grooves (7) are symmetrically opened. The inner wall of the moving groove (7) is slidably connected to a grid frame (8) with a "return" - shaped cross - section. The inner wall of the grid frame (8) is fixedly connected to the filter net (3).

3. The air make-up type self-adjusting ventilation device for a purification workshop according to claim 2, characterized in that, On one side of the grid frame (8) located inside the box body (2), an L - shaped limiting handle (9) is connected through a bearing. On one side of the ventilation duct (1) located inside the box body (2), L - shaped limiting baffles (10) are symmetrically and fixedly connected.

4. The air make-up type self-regulating ventilation device for a purification workshop according to claim 1, characterized in that, The inner wall of the box body (2) is fixedly connected to a support plate (11) for storing the filter nets (3). One side of the box body (2) is connected to a box door (12) through symmetrically arranged hinges.

5. The air supply type self-regulating ventilation device for a purification workshop according to claim 1, wherein, A moving opening (13) is opened on the outer wall of the ventilation duct (1). The moving plate (6) is slidably connected to the inner wall of the moving opening (13). On one side of the moving plate (6) located inside the ventilation duct (1), it is fixedly connected to the support rod (5). An installation groove is opened at the top of the support rod (5). A servo motor (14) is inserted into the installation groove. The output end of the servo motor (14) is provided with a driving rod, and the top of the driving rod is fixedly connected to the bottom of the fan (4).

6. The air make-up type self-regulating ventilation device for a purification workshop according to claim 5, wherein, One end of the support rod (5) is provided with a threaded hole that communicates with the inside of the installation groove. A fixing groove is opened on the outer wall of the servo motor (14). A first bolt (15) is inserted into the fixing groove, and the first bolt (15) is threadedly connected to the threaded hole.

7. The air make-up type self-regulating ventilation device for a purification workshop according to claim 1, characterized in that, On both sides of the moving plate (6) located outside the ventilation duct (1), mounting plates are fixedly connected. On the outer wall of the ventilation duct (1), placing grooves are symmetrically opened. The mounting plates are slidably connected to the inner walls of the placing grooves. Threaded grooves are opened on the placing grooves, and mounting holes are opened on the mounting plates. A second bolt (16) that penetrates the mounting holes is threadedly connected to the threaded grooves. A moving handle (17) is fixedly connected to one side of the moving plate (6).

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