Quantitative air supply device for clean room

Abstract

The quantitative air supply device for the clean room comprises an air inlet box, an installation plate is fixedly connected to the inner bottom of the air inlet box, a driving motor is installed on the right side of the installation plate, the tail end of an output shaft of the driving motor penetrates through the installation plate and is fixedly connected with a fan, and the right side of the air inlet box is communicated with an air supply pipe. The air supply pipe is composed of a first pipeline, a second pipeline and a third pipeline, and mounting rings are arranged between the first pipeline and the second pipeline and between the second pipeline and the third pipeline. According to the device, through the arrangement of a rotating rod, when filter screens are replaced, the upper filter screen can be placed between a second pipeline and a third pipeline after being replaced, and the lower filter screen is rotated to be between a first pipeline and the second pipeline, so that the filtering effect of each filter screen is fully utilized; and the situation that too much dust is accumulated on the lower filter screens to affect the air supply amount is avoided, and meanwhile, through arrangement of clamping blocks, the two filter screens can be replaced conveniently and rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply equipment, in particular to a quantitative air supply device for a clean room. Background Art

[0002] Clean room, also known as dust-free workshop, clean room or clean room. The main function of a clean room is indoor pollution control. Without a clean room, pollution-sensitive parts cannot be mass-produced. Clean rooms generally need to use air supply devices to deliver fresh air from the outside to the clean room to achieve air purification;

[0003] In the process of supplying air, the existing clean room can achieve the purpose of quantitative air supply. In order to prevent external dust from entering the clean room, two filters are usually arranged in the air supply duct. The cleanliness of the gas entering the clean room is ensured by filtering with the two filters. The prior art usually installs one filter at the air inlet and the other filter in the air supply duct, resulting in more dust adhering to the filter on the air inlet and less dust adhering to the filter in the air supply duct, and the filter in the air supply duct is difficult to replace. At the same time, the dust adhering to the air supply duct will continue to accumulate, which will easily affect the air supply to the clean room after a long time. Therefore, it is necessary to design a quantitative air supply device for clean rooms to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a quantitative air supply device for a clean room is proposed. The device is provided with a rotating rod, so that when the filter is replaced, the upper filter can be replaced and placed between the second pipe and the third pipe, and the lower filter can be rotated between the first pipe and the second pipe, so as to fully utilize the filtering effect of each filter, and the situation that too much dust accumulates on the lower filter and affects the air supply volume will not occur. At the same time, through the setting of the card block, the two filters can be conveniently replaced.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A quantitative air supply device for a clean room comprises an air inlet box, wherein the inner bottom of the air inlet box is fixedly connected to a mounting plate, a driving motor is installed on the right side of the mounting plate, the output shaft end of the driving motor passes through the mounting plate and is fixedly connected to a fan, the right side of the air inlet box is connected to an air supply duct, the air supply duct consists of a first pipe, a second pipe and a third pipe, mounting rings are provided between the first pipe and the second pipe and between the second pipe and the third pipe, a filter is provided in the mounting ring, the left side of the second pipe is rotatably connected to a rotating rod, the left side of the rotating rod is fixedly connected to a knob, two connecting rods are fixedly connected to the rotating rod, and the two connecting rods are fixedly connected to the corresponding mounting rings on one side away from the rotating rod.

[0007] Preferably, a fixing ring is provided inside each of the two mounting rings, a mounting groove is provided on the left side of each of the two fixing rings, the two filter screens are installed in the mounting groove, and a fixing assembly is provided on the left side of each of the two fixing rings.

[0008] Preferably, the fixing assembly comprises a plurality of rotating shafts arranged on the left side of the fixing ring, the plurality of rotating shafts are rotatably connected to the left side of the fixing ring, and a clamping block is fixedly connected to the plurality of rotating shafts.

[0009] Preferably, adjacent sides of the first pipeline and the second pipeline and adjacent sides of the second pipeline and the third pipeline are provided with annular grooves, and sealing rings are provided in the plurality of annular grooves.

[0010] Preferably, the outer walls of the first pipe, the second pipe and the third pipe are provided with strip openings connected to the annular groove, each of the strip openings is slidably connected with a connecting block, each of the connecting blocks is fixedly connected to the corresponding sealing ring, the outer walls of the first pipe, the second pipe and the third pipe are fixedly connected with a fixing block, each of the fixing blocks is provided with a threaded hole, each of the threaded holes is threadedly connected with a bolt, and each of the bolts is rotatably connected to the corresponding connecting block.

[0011] Preferably, the sealing ring is made of rubber.

[0012] Compared with the existing technology, the advantages of this device are:

[0013] 1. Compared with the prior art, the rotating rod and the two mounting rings are arranged so that when replacing the filter, the new filter can be installed between the second pipe and the third pipe, and the lower filter can be rotated between the first pipe and the second pipe, so that the filtering performance of each filter can be fully utilized, and the situation that the lower filter is used for too long to affect the air supply volume of the clean room can be avoided;

[0014] 2. Compared with the prior art, by setting the card block, the rotating rod can be rotated 90 degrees first, and then the corresponding card block can be rotated to remove the filter for replacement, which is convenient and quick;

[0015] 3. Compared with the prior art, by setting the bolts, connecting blocks and sealing rings, when the position of the filter is replaced, the bolts can be turned so that the sealing ring is tightly pressed against the fixing ring, thereby ensuring the sealing of the air supply duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a quantitative air supply device for a clean room proposed by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 3 for Figure 1 Half-section of

[0019] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0020] In the figure: 1 air inlet box, 2 fan, 3 air supply duct, 4 rotating rod, 5 knob, 6 mounting ring, 7 strip opening, 8 fixing block, 9 bolt, 10 connecting block, 11 sealing ring, 12 driving motor, 13 mounting plate, 14 fixing ring, 15 clamping block, 16 mounting groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 4 A quantitative air supply device for a clean room comprises an air inlet box 1, the inner bottom of the air inlet box 1 is fixedly connected with a mounting plate 13, a driving motor 12 is installed on the right side of the mounting plate 13, the output shaft end of the driving motor 12 passes through the mounting plate 13 and is fixedly connected with a fan 2, and an air supply pipe 3 is connected to the right side of the air inlet box 1. The air supply pipe 3 consists of a first pipe, a second pipe and a third pipe. A mounting ring 6 is provided between the first pipe and the second pipe and between the second pipe and the third pipe, and a filter is provided in the mounting ring 6. A rotating rod 4 is rotatably connected to the left side of the second pipe, and the rotating rod 4 is rotatably connected to the second pipe through a damping bearing, so that the rotating rod 4 will not rotate when there is no external force. A knob 5 is fixedly connected to the left side of the rotating rod 4, and two connecting rods are fixedly connected to the rotating rod 4. The two connecting rods are fixedly connected to the corresponding mounting ring 6 on the side away from the rotating rod 4.

[0023] Among them, a fixing ring 14 is provided in each of the two mounting rings 6, a mounting groove 16 is provided on the left side of each of the two fixing rings 14, two filters are installed in the mounting groove 16, a fixing component is provided on the left side of each of the two fixing rings 14, and the fixing component includes a plurality of rotating shafts arranged on the left side of the fixing ring 14, the rotating shafts and the fixing ring 14 are rotatably connected through a damping bearing, a plurality of rotating shafts are rotatably connected to the left side of the fixing ring 14, and a clamping block 15 is fixedly connected to the plurality of rotating shafts.

[0024] Among them, adjacent sides of the first pipeline and the second pipeline and adjacent sides of the second pipeline and the third pipeline are provided with annular grooves, and sealing rings 11 are provided in multiple annular grooves. The sealing rings 11 are made of rubber material. The outer walls of the first pipeline, the second pipeline and the third pipeline are provided with strip openings 7 connected to the annular grooves, and each strip opening 7 is slidably connected with a connecting block 10, and each connecting block 10 is fixedly connected to the corresponding sealing ring 11. The outer walls of the first pipeline, the second pipeline and the third pipeline are fixedly connected with fixing blocks 8, each fixing block 8 is provided with a threaded hole, and each threaded hole is threadedly connected with a bolt 9, and each bolt 9 is rotatably connected to the corresponding connecting block 10.

[0025] The functional principle of the utility model can be explained through the following operation mode: when in use, the right end of the air supply pipe 3 is extended into the clean room, and the driving motor 12 is started, so that the fan 2 rotates, and then the gas is injected into the clean room through the air supply pipe 3, and the dust can be effectively filtered through the arrangement of two filter screens;

[0026] During the air supply process, more dust adheres to the upper filter screen, and less dust adheres to the lower filter screen. After running for a period of time, the filter screen can be replaced. At this time, the multiple bolts 9 are rotated counterclockwise in sequence, so that the sealing ring 11 is no longer tightly pressed on the fixing ring 14, and then the knob 5 is rotated clockwise to rotate the rotating rod 4 ninety degrees, so that the two filter screens are rotated to a horizontal state. At this time, the upper filter screen rotates to the front side, and the lower filter screen rotates to the rear side. The staff can rotate the multiple blocks 15 on the front fixing ring 14 clockwise in sequence and rotate them ninety degrees so that the multiple blocks 15 no longer block the filter screen, and then remove the filter screen and put the new filter screen into the installation groove 16. Then the staff needs to rotate the multiple blocks 15 ninety degrees counterclockwise to complete the fixation of the filter screen.

[0027] After fixing, turn the knob 5 clockwise again so that the new filter is located between the second pipe and the third pipe, and the filter on the rear side is rotated to between the first pipe and the second pipe, so as to avoid excessive accumulation of dust on the filter below during long-term use and affect the air supply volume. After the position is replaced, turn the multiple bolts 9 clockwise in sequence so that the sealing ring 11 is tightly pressed against the mounting ring 6 again to ensure the airtightness of the air supply pipe 3.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quantitative air supply device for a clean room, comprising an air inlet box (1), characterized in that: The inner bottom of the air inlet box (1) is fixedly connected to a mounting plate (13), a driving motor (12) is installed on the right side of the mounting plate (13), the output shaft end of the driving motor (12) passes through the mounting plate (13) and is fixedly connected to the fan (2), the right side of the air inlet box (1) is connected to an air supply pipe (3), the air supply pipe (3) is composed of a first pipe, a second pipe and a third pipe, a mounting ring (6) is provided between the first pipe and the second pipe and between the second pipe and the third pipe, a filter is provided in the mounting ring (6), the left side of the second pipe is rotatably connected to a rotating rod (4), the left side of the rotating rod (4) is fixedly connected to a knob (5), the rotating rod (4) is fixedly connected to two connecting rods, and the two connecting rods are fixedly connected to the corresponding mounting rings (6) on the side away from the rotating rod (4).

2. A quantitative air supply device for a clean room according to claim 1, characterized in that: A fixing ring (14) is provided inside each of the two mounting rings (6), a mounting groove (16) is provided on the left side of each of the two fixing rings (14), the two filter screens are installed in the mounting groove (16), and a fixing assembly is provided on the left side of each of the two fixing rings (14).

3. A quantitative air supply device for a clean room according to claim 2, characterized in that: The fixing assembly comprises a plurality of rotating shafts arranged on the left side of the fixing ring (14), the plurality of rotating shafts being rotationally connected to the left side of the fixing ring (14), and a clamping block (15) being fixedly connected to each of the plurality of rotating shafts.

4. A quantitative air supply device for a clean room according to claim 1, characterized in that: Adjacent sides of the first pipeline and the second pipeline, as well as adjacent sides of the second pipeline and the third pipeline, are provided with annular grooves, and sealing rings (11) are provided in the plurality of annular grooves.

5. A quantitative air supply device for a clean room according to claim 4, characterized in that: The outer walls of the first pipeline, the second pipeline and the third pipeline are each provided with a strip opening (7) communicating with the annular groove, each strip opening (7) is slidably connected with a connecting block (10), each connecting block (10) is fixedly connected to a corresponding sealing ring (11), the outer walls of the first pipeline, the second pipeline and the third pipeline are each fixedly connected with a fixing block (8), each fixing block (8) is provided with a threaded hole, each threaded hole is threadedly connected with a bolt (9), and each bolt (9) is rotatably connected to the corresponding connecting block (10).

6. A quantitative air supply device for a clean room according to claim 4, characterized in that: The sealing ring (11) is made of rubber material.

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