Anti-poison ventilation device for occupational health safety

Abstract

The invention provides an anti-poison ventilation device for occupational health safety. The anti-poison ventilation device structurally comprises a locking block, a positioning block, a parallel plate, an activated carbon box and a circulating fan structure, the locking block penetrates through the surface of the positioning block, and the positioning block is welded to the edge of the parallel plate; after the structure of the circulating fan is improved, the driving motor I and the driving motor II are symmetrically positioned up and down through the two groups of pressing blocks, and then the power-on operation is carried out simultaneously through the power-on wire shaft, so that the exhaust fan and the blowing fan are started simultaneously, and the effect of integrated simultaneous operation can be achieved; the situation that installation is inconvenient due to original one-by-one installation and winding is caused by a large number of lines is replaced, then the dustproof baffle of the dustproof body serves as the basis, the dustproof baffle can be pushed by airflow to be opened when the exhaust fan and the blowing fan work, and on the contrary, it is guaranteed that the surfaces of the exhaust fan and the blowing fan can be covered when the device stops, and the service life of the device is prolonged. And dust covering pollution caused by continuous exposure is prevented.

Description

Technical Field

[0001] This invention relates to the field of health and safety technology, and more specifically to a ventilation device for occupational health and safety. Background Technology

[0002] Occupational health and safety, often referred to as workplace safety or occupational health and safety, is a multidisciplinary field. Its core objective is to ensure the safety and health of workers during their work processes. Therefore, the anti-toxic ventilation devices that are matched with occupational health and safety can effectively prevent workers from inhaling toxic and harmful substances. Through a comprehensive system of "source control - path blocking - personal protection", it can achieve the effect of protecting workers' healthy breathing. In summary, the inventors have found that existing anti-toxic ventilation devices have the following main defects: When the current anti-toxic ventilation device is used for ventilation, it requires two sets of fans operating in opposite directions to work together, which means that the two sets of fans are in a separate state. This requires them to be positioned and installed one by one, which causes inconvenience during installation. Furthermore, because of the individual state of the two sets of fans, the wiring they carry needs to be pulled and energized one by one, which easily leads to the wiring crossing and knotting. This increases the difficulty of disassembly and assembly, and thus greatly reduces the ease of use of the anti-toxic ventilation device. Meanwhile, after the workshop operation is completed, the equipment will stop operating, and its fan will stop rotating. As a result, when idle and exposed to the outdoors, pollutants are very likely to adhere, which will eventually affect the smoothness of the overall fan rotation and increase the difficulty of subsequent maintenance, thereby further reducing the usage intensity of the ventilation equipment. Summary of the Invention

[0003] The technical solution adopted by the present invention to achieve the technical objective is: a ventilation device for occupational health and safety, the structure of which includes: a locking block, a positioning block, a parallel plate, an activated carbon box, and a circulating fan structure. The locking block penetrates through the surface of the positioning block and the positioning block is welded to the edge of the parallel plate. The parallel plate is perpendicular to the activated carbon box and is connected to the circulating fan structure.

[0004] As a further improvement of the present invention, the circulating fan structure is provided with a pressing block, in which a first drive motor and a second drive motor are provided and installed at the upper and lower center positions of the connecting frame. The connecting frame is equipped with a conductive spindle connected to the first drive motor and the second drive motor. A dustproof body is also provided inside the connecting frame to position the exhaust fan and the intake fan.

[0005] As a further improvement of the present invention, the dustproof body is also provided with a vertical sleeve, the vertical sleeve is connected to an insert block and positioned at the upper and lower positions of the limiting frame, the limiting frame has an opening cavity and carries a dustproof baffle.

[0006] As a further improvement of the present invention, the drive motor one and drive motor two are symmetrically arranged by the upper and lower pressing blocks of the connecting frame of the circulating fan structure, so that they can be connected by a power line to simultaneously drive the exhaust fan and the suction fan inside the dustproof body, and at the same time blow open the dustproof baffle on the dustproof body. Conversely, after the operation stops, the dustproof baffle resets to close the cavity and cover the exhaust fan and the suction fan.

[0007] As a further improvement of the present invention, the locking block positions the parallel plate in parallel by means of the positioning block, and the parallel plate is perpendicular to the activated carbon box and coincides with the center point of the circulating fan structure.

[0008] As a further improvement of the present invention, the pressing block is provided on each of the first and second drive motors and is set symmetrically in the upper and lower positions of the connecting frame. The connecting frame has a traction groove for the arrangement of the power cord shaft. The dustproof body determines the position of the exhaust fan and the blowing fan and the upper and lower center is driven by the drive shafts of the first and second drive motors to drive the exhaust fan and the blowing fan to work.

[0009] As a further improvement of the present invention, the vertical sleeve is set vertically at the insertion block position and the drive shafts of drive motor one and drive motor two pass through the center position. The limiting frame is square in shape and its center coincides with the center of the connecting frame. The cavity is connected to the exhaust fan and the blowing fan and carries multiple sets of movable dustproof baffles.

[0010] As a further improvement of the present invention, the exhaust fan and the blowing fan are further provided with a partition plate at their edges. The partition plate is equipped with a buffer block and the buffer block is also connected to a support block to limit the positioning ring. The inner wall of the positioning ring is equipped with a rotating ring, which carries a small rotating wheel.

[0011] As a further improvement of the present invention, the partition plate is set in a horizontal direction and is solid, the buffer block is made of rubber and the connected support block is trapezoidal and the connection position with the positioning ring is arc-shaped, the outer edge of the rotating ring is in contact with the inner wall of the positioning ring, the rotating wheel of the rotating ring is spherical and is in contact with the inner wall of the positioning ring, and the inner wall of the rotating ring is connected to the edge of the exhaust fan and the blowing fan.

[0012] As a further improvement of the present invention, the dustproof baffle is also provided with a rotating shaft, one end of which is connected to a splicing block and to the edge of the solid plate. One end of the solid plate has a clamping groove through which the elastic block is embedded. One end of the elastic block is connected to a protective block.

[0013] As a further improvement of the present invention, the rotating shaft is perpendicular to the splicing block and is set in a symmetrical orientation at the edge of the solid plate. The clamping groove is opened in a lateral orientation and matches the shape of the elastic block. The elastic block is perpendicular to the protective block and the protective block covers one end of the solid plate.

[0014] As a further improvement of the present invention, the parallel plate is provided with a restraining block, one end of which is welded to the edge of the plate body, and a clamping block is mounted in the center of the plate body to position and clamp one end of the activated carbon box. A connecting block is connected to the outside of the plate body to position the exhaust pipe and the air supply pipe.

[0015] As a further improvement of the present invention, the restraining block is provided at the upper and lower edges of the plate, the clamping block of the plate is rectangular, the connecting block is set symmetrically on the outer surface of the plate, the exhaust pipe and the air supply pipe are distributed vertically, the exhaust pipe is polygonal, the air supply pipe is "L" shaped, and there is a safety distance between the two.

[0016] As a further improvement of the present invention, the plate body is provided with an overlapping layer at the end face where the clamping block is located, and a frame is connected to the overlapping layer and a fixing bolt is connected to the edge of the frame. The frame body is also provided with a central groove that communicates with the exhaust pipe and the air supply pipe.

[0017] As a further improvement of the present invention, the overlapping layer combined with the clamping block restrains one end of the activated carbon box and the surface is equipped with two sets of frames set at the upper and lower positions and locked to one end of the exhaust pipe and the air supply pipe respectively by the locking of the fixing bolts.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention improves the structure of the circulating fan by using two sets of pressing blocks to symmetrically position the drive motor 1 and drive motor 2. Then, a single power cord is used to simultaneously power on both the exhaust fan and the blowing fan, enabling them to operate in one unit. This replaces the inconvenience of separate installation and the tangling caused by numerous wires. Furthermore, the dustproof baffle of the dustproof body can be opened by the airflow when the exhaust fan and blowing fan are operating, and closed and covered when they are not, ensuring that the surfaces of the exhaust fan and blowing fan are covered when the device is stopped, preventing dust pollution caused by continuous exposure.

[0019] 2. This invention is based on buffer blocks and support blocks set on the edges of exhaust fans and blowing fans. The buffer blocks and support blocks work together to ensure the stability of the exhaust fans and blowing fans at the origin and to reduce the vibrations that occur. At the same time, when rotating, it can drive the rotating ring and the rotating wheel to rotate in the positioning ring, which improves the stability and smoothness of rotation. Meanwhile, the partition plate separates them to avoid airflow chaos caused by mutual contact and obstruction, which further improves the stability of ventilation.

[0020] 3. This invention improves upon the dustproof baffle by using a pivot on the edge of a solid plate as a base. When the solid plate is subjected to airflow, both the solid plate and the pivot are in a lightweight state, making it easy to push and thus easy to open. Conversely, when the airflow disappears, the pivot and the solid plate automatically reset due to centrifugal force, allowing the protective block to overlap the upper part of the solid plate, achieving a protective effect and avoiding surface wear caused by frequent scraping of the upper and lower parts of the solid plate during cyclic switching.

[0021] 4. This invention improves upon the parallel plate by using two restraining blocks on the plate to keep the plate parallel when embedded in the wall at the installation location. The clamping blocks then secure the position of the activated carbon box, while the two connecting blocks position the exhaust pipe and the air supply pipe. This ensures stable ventilation by maintaining a safe distance between the exhaust pipe and the air supply pipe, despite their different shapes, thus avoiding ventilation failure caused by mutual obstruction. Furthermore, the fixing bolts in the frame of the plate allow the exhaust pipe and the air supply pipe to be detachable, facilitating subsequent maintenance and replacement. Attached Figure Description

[0022] Figure 1 This is a structural diagram of a ventilation device for occupational health and safety purposes that is designed to prevent the spread of toxic substances.

[0023] Figure 2 This is a cross-sectional structural diagram of an improved circulating fan structure.

[0024] Figure 3 This is a cross-sectional structural diagram of an exhaust fan or blowing fan with components set on its edge.

[0025] Figure 4 This is a cross-sectional structural diagram of an improved dustproof body.

[0026] Figure 5 This is a three-dimensional structural diagram of an improved dustproof baffle.

[0027] Figure 6 This is a side view schematic diagram of a modified parallel plate structure.

[0028] Figure 7 This is a schematic diagram of a cross-section of a plate surface after modification.

[0029] In the diagram: Locking block-1, Positioning block-2, Parallel plate-3, Activated carbon box-4, Circulating fan structure-5; Pressing block-51, Drive motor one-52, Drive motor two-53, Connecting frame-54, Conductive wire spool-55, Dustproof body-56, Exhaust fan-57, Intake fan-58; Vertical sleeve-561, insert block-562, limit frame-563, cavity-564, dustproof baffle-565; Divider plate-571, buffer block-572, support block-573, positioning ring-574, rotating ring-575, rotating wheel-576; 5651, 5652, 5653, 5654, 5655, 5656; 5655, 5656; Restraining block-31, plate-32, clamping block-33, connecting block-34, exhaust pipe-35, air supply pipe-36; Overlapping layer-321, frame-322, fixing bolt-323, center groove-324. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings: Example 1: Figures 1 to 5 As shown: This invention provides a ventilation device for occupational health and safety against toxic substances. Its structure includes: locking block 1, positioning block 2, parallel plate 3, activated carbon box 4, and circulating fan structure 5. The locking block 1 penetrates the surface of the positioning block 2 and the positioning block 2 is welded to the edge of the parallel plate 3. The parallel plate 3 is perpendicular to the activated carbon box 4 and is connected to the circulating fan structure 5.

[0031] The circulating fan structure 5 is provided with a pressing block 51. The pressing block 51 is equipped with a first drive motor 52 and a second drive motor 53 and is installed at the upper and lower center positions of the connecting frame 54. The connecting frame 54 is equipped with a wire shaft 55 connected to the first drive motor 52 and the second drive motor 53. The connecting frame 54 is also equipped with a dustproof body 56 and positions the exhaust fan 57 and the intake fan 58.

[0032] The dustproof body 56 is also provided with a vertical sleeve 561. The vertical sleeve 561 is connected to an insert block 562 and is positioned at the upper and lower positions of the limiting frame 563. The limiting frame 563 has an open cavity 564 and carries a dustproof baffle 565.

[0033] In this system, the drive motor 1 52 and drive motor 2 53 are symmetrically arranged by the upper and lower pressing blocks 51 of the connecting frame 54 of the circulating fan structure 5, so that they can be connected by a power line 55 to simultaneously drive the exhaust fan 57 and the suction fan 58 inside the dustproof body 56. At the same time, the dustproof baffle 565 on the dustproof body 56 is blown open. Conversely, after the operation stops, the dustproof baffle 565 is reset to close the cavity 564 and cover the exhaust fan 57 and the suction fan 58.

[0034] The locking block 1 positions the parallel plate 3 in parallel with the positioning block 2. The parallel plate 3 is perpendicular to the activated carbon box 4 and coincides with the center point of the circulating fan structure 5.

[0035] The pressing block 51 is provided on each of the drive motor 1 52 and drive motor 2 53 and is set symmetrically in the upper and lower positions of the connecting frame 54. The connecting frame 54 has a traction groove to allow the power cord shaft 55 to be arranged. The dustproof body 56 determines the position of the exhaust fan 57 and the blowing fan 58 and the upper and lower centers are driven by the drive shafts of drive motor 1 52 and drive motor 2 53 to drive the exhaust fan 57 and the blowing fan 58 to work.

[0036] The vertical sleeve 561 is vertically positioned at the position of the insert block 562, and the drive shafts of the first drive motor 52 and the second drive motor 53 pass through its center. The limiting frame 563 is square in shape and its center coincides with the center of the connecting frame 54. The cavity 564 is connected to the exhaust fan 57 and the blowing fan 58 and carries multiple sets of movable dustproof baffles 565.

[0037] The exhaust fan 57 and the blowing fan 58 are also provided with a partition plate 571. The partition plate 571 is equipped with a buffer block 572 and the buffer block 572 is also connected to a support block 573 to limit the positioning ring 574. The inner wall of the positioning ring 574 is equipped with a rotating ring 575, and the rotating ring 575 carries a small rotating wheel 576.

[0038] The partition plate 571 is set in a horizontal direction and is solid. The buffer block 572 is made of rubber and the connected support block 573 is trapezoidal and arc-shaped. The outer edge of the rotating ring 575 is in contact with the inner wall of the positioning ring 574. The rotating wheel 576 of the rotating ring 575 is spherical and is in contact with the inner wall of the positioning ring 574. The inner wall of the rotating ring 575 is connected to the edge of the exhaust fan 57 and the blowing fan 58.

[0039] The dustproof baffle 565 is also provided with a rotating shaft 5651. One end of the rotating shaft 5651 is connected to a splicing block 5652 and is connected to the edge of the solid plate 5653. One end of the solid plate 5653 has a clamping groove 5654, through which the elastic block 5655 is embedded. One end of the elastic block 5655 is connected to a protective block 5656.

[0040] The rotating shaft 5651 is perpendicular to the splicing block 5652 and is set symmetrically at the edge of the solid plate 5653. The clamping groove 5654 is opened in the lateral direction and matches the shape of the elastic block 5655. The elastic block 5655 is perpendicular to the protective block 5656 and the protective block 5656 covers one end of the solid plate 5653.

[0041] The specific functions and operation procedures of this embodiment are as follows: In this invention, the occupational health and safety anti-toxic ventilation device can install the parallel plate 3 onto a specific ventilation wall using locking block 1 and positioning block 2. Then, the activated carbon box 4 and the circulating fan structure 5 are simultaneously fixed in a stable state, exposing one end of the circulating fan structure 5 to the outside. This allows indoor air to be drawn out through the ventilation effect and filtered by the activated carbon inside the activated carbon box 4. Similarly, during the ventilation process, outdoor air is introduced while simultaneously being filtered by the activated carbon inside the activated carbon box 4, achieving the effect of anti-toxic ventilation. Subsequently, the connecting frame 54 of the circulating fan structure 5 can symmetrically position the drive motor 1 52 and drive motor 2 53 via upper and lower pressing blocks 51, enabling them to be simultaneously started via the power cord shaft 55. This simultaneously drives the exhaust fan 57 and the intake fan 58 inside the dustproof body 56, thus replacing the inconvenience of separate installation in the original system and the tangled situation caused by multiple wires, improving the ease of use of the device. Furthermore, the positioning rings 574 set on the edges of the exhaust fan 57 and the intake fan 58 allow the internal rotating ring 575 to connect with the edges of the exhaust fan 57 and the intake fan 58. During rotation, the rotating ring 575 can rotate within the positioning ring 574 in conjunction with the rotating wheel 576, improving the smoothness of operation. The cooperation of the support block 573 and the buffer block 572 absorbs and mitigates the vibrations generated during rotation, improving the stability during operation. Simultaneously, the partition plate 571... The partition prevents contact between gases, thus preventing ventilation failure caused by airflow chaos. The limiting frame 563 of the dustproof body 56 allows the exhaust fan 57 and the intake fan 58 to be embedded through the cavity 564. Simultaneously, the cooperation of the upper and lower inserts 562 and the vertical sleeve 561 allows the drive shafts of drive motor 1 52 and drive motor 2 53 to drive the exhaust fan 57 and the intake fan 58 to rotate. During operation, the dustproof baffle 565 is automatically opened by the gas pushing effect. When operation stops, the airflow disappears, and the dustproof baffle 565 automatically covers the cavity 564 through centrifugal force, preventing dust pollution caused by the continuous exposure of the exhaust fan 57 and the intake fan 58. This affects the strength and effectiveness of subsequent repeated use. Therefore, the solid panel 5653 of the dustproof baffle 565 can be made of lightweight material (wood-plastic composite material, which is lightweight and environmentally friendly) to make it easy to push. When the solid panel 5653 is under force, its angle can be changed via the pivot 5651 of the edge splicing block 5652, thus opening the cavity 564. Simultaneously, the pivot 5651 at the edge of the solid panel 5653 near the suction fan 58 contains a small electric motor. When the suction fan 58 is operating, the small electric motor drives the pivot 5651 to rotate, pushing the solid panel 5653 outwards. This avoids the situation where the suction fan 58 cannot push the solid panel 5653 due to inward airflow.This design enhances the durability of the dust baffle 565. After the exhaust fan 57 and intake fan 58 stop operating, the solid plate 5653, freed from stress, automatically resets due to centrifugal force and its own weight, closing the cavity 564 and achieving a dustproof effect. Subsequently, the front groove 5654 of the solid plate 5653 allows the elastic block 5655 to be embedded, positioning the rubber protective block 5656. This ensures that when the upper ends of multiple solid plates 5653 come into contact, the protective block 5656 provides surface protection, preventing frequent scratching and loss of precision. This extends the service life of the dust baffle 565. In summary, the coordinated operation of these components effectively improves the overall strength and operational stability of the ventilation system, avoiding adverse factors such as chaotic airflow and entanglement between multiple lines during operation.

[0042] Example 2: Figures 6 to 7 As shown: This invention provides a ventilation device for occupational health and safety against toxic substances. Its structure includes a parallel plate 3 with a restraining block 31, one end of which is welded to the edge of the plate body 32. A clamping block 33 is mounted in the center of the plate body 32 to position and clamp one end of the activated carbon box 4. A connecting block 34 is connected to the outside of the plate body 33 to position the exhaust pipe 35 and the air supply pipe 36.

[0043] Among them, the restraint block 31 is provided at the upper and lower edges of the plate 32, the clamping block 33 of the plate 32 is rectangular, the connecting block 34 is set symmetrically on the outer surface of the plate 32, the exhaust pipe 35 and the air supply pipe 36 are distributed vertically, the exhaust pipe 35 is polygonal, the air supply pipe 36 is "L" shaped, and there is a safe distance between them.

[0044] The plate 32 is provided with an overlapping layer 321 at the end face where the clamping block 33 is located. A frame 322 is connected to the overlapping layer 321 and a fixing bolt 323 is connected to the edge of the frame 322. The frame 322 is also provided with a central groove 324 that communicates with the exhaust pipe 35 and the air supply pipe 36.

[0045] The overlapping layer 321, combined with the clamping block 33, restrains one end of the activated carbon box 4, and the surface is equipped with two sets of frames 322 which are set at the upper and lower positions and locked to one end of the exhaust pipe 35 and the air supply pipe 36 respectively by the locking of the fixing bolt 323.

[0046] The specific functions and operation procedures of this embodiment are as follows: In this invention, the plate 32 of the parallel plate 3 can be positioned parallel to the wall at the working position by the restraining block 31. Then, the plate 32 is clamped and fixed at one end of the activated carbon box 4 by the central clamping block 33, ensuring a stable connection with the circulating fan structure 5. Subsequently, the polygonal exhaust pipe 35 and the "L"-shaped air supply pipe 36 are separated and positioned by the cooperation of two connecting blocks 34. The separation of the two and the difference in their shapes can effectively avoid airflow chaos during ventilation, improve the stability of ventilation, and prevent the air supply pipe 36 from causing airflow disturbance in the room. The failure of ventilation is caused by the direct absorption of outside air by the exhaust pipe 35 after it is introduced. At the same time, the overlapping layer 321 on the surface of the plate 32 allows one end of the activated carbon box 4 to be embedded in parallel overlap. Then, the fixing bolts 323 and the central groove 324 in the two sets of frames 322 on the surface are used to embed the exhaust pipe 35 and the air supply pipe 36. Then, the stable installation can be achieved by manual locking. Conversely, the effect of quick disassembly can be achieved, which effectively improves the subsequent maintenance and replacement. Therefore, it can further improve the ease of use of the ventilation device and the replacement effect of the exhaust pipe 35 and the air supply pipe 36.

[0047] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A ventilation device for occupational health and safety against toxic substances, comprising the following structure: The structure comprises a locking block (1), a positioning block (2), a parallel plate (3), an activated carbon box (4), and a circulating fan structure (5). The locking block (1) extends through the surface of the positioning block (2), and the positioning block (2) is welded to the edge of the parallel plate (3). The parallel plate (3) is perpendicular to the activated carbon box (4) and is connected to the circulating fan structure (5). Its features are as follows: The circulating fan structure (5) is provided with a pressing block (51). The pressing block (51) is provided with a drive motor 1 (52) and a drive motor 2 (53) and is installed at the upper and lower center positions of the connecting frame (54). The connecting frame (54) is equipped with a power cable spindle (55) and connected to the drive motor 1 (52) and the drive motor 2 (53). The connecting frame (54) is also provided with a dustproof body (56) and positions the exhaust fan (57) and the intake fan (58). The dustproof body (56) is also provided with a vertical sleeve (561), the vertical sleeve (561) is connected to an insert (562) and positioned at the upper and lower positions of the limiting frame (563), the limiting frame (563) has an open cavity (564) and carries a dustproof baffle (565). The drive motor 1 (52) and drive motor 2 (53) are symmetrically arranged by the upper and lower pressing blocks (51) of the connecting frame (54) of the circulating fan structure (5), so that the exhaust fan (57) and the suction fan (58) inside the dustproof body (56) are simultaneously powered by a power line (55). At the same time, the dustproof baffle (565) on the dustproof body (56) is blown open. Conversely, after the operation stops, the dustproof baffle (565) is reset to close the cavity (564) and cover the exhaust fan (57) and the suction fan (58).

2. The occupational health and safety ventilation device for preventing poisoning according to claim 1, characterized in that: The locking block (1) positions the parallel plate (3) in parallel through the positioning block (2). The parallel plate (3) is perpendicular to the activated carbon box (4) and coincides with the center point of the circulating fan structure (5).

3. The occupational health and safety ventilation device for preventing poisoning according to claim 1, characterized in that: The pressing block (51) is provided on each of the drive motor one (52) and drive motor two (53) and is set in a symmetrical position on the upper and lower parts of the connecting frame (54). The connecting frame (54) has a traction groove inside to allow the electric wire shaft (55) to be arranged. The dustproof body (56) determines the position of the exhaust fan (57) and the blowing fan (58) and the upper and lower center is driven by the drive shafts of the drive motor one (52) and drive motor two (53) to drive the exhaust fan (57) and the blowing fan (58) to work.

4. The occupational health and safety ventilation device for preventing poisoning according to claim 1, characterized in that: The vertical sleeve (561) is set vertically at the position of the insert (562) and the drive shafts of the first drive motor (52) and the second drive motor (53) pass through the center. The limiting frame (563) is square in shape and its center coincides with the center of the connecting frame (54). The cavity (564) is connected to the exhaust fan (57) and the blowing fan (58) and carries multiple sets of movable dustproof baffles (565).

5. The occupational health and safety ventilation device for preventing poisoning according to claim 1, characterized in that: The exhaust fan (57) and the blowing fan (58) are also provided with a partition plate (571) at their edges. The partition plate (571) is equipped with a buffer block (572) and the buffer block (572) is also connected to a support block (573) to limit the positioning ring (574). The inner wall of the positioning ring (574) is equipped with a rotating ring (575) and the rotating ring (575) carries a small rotating wheel (576). The partition plate (571) is set in a horizontal position and is solid. The buffer block (572) is made of rubber and the connected support block (573) is trapezoidal and arc-shaped when connected to the positioning ring (574). The outer edge of the rotating ring (575) is in contact with the inner wall of the positioning ring (574). The rotating wheel (576) of the rotating ring (575) is spherical and is in contact with the inner wall of the positioning ring (574). The inner wall of the rotating ring (575) is connected to the edge of the exhaust fan (57) and the blowing fan (58).

6. The occupational health and safety ventilation device for preventing poisoning according to claim 1, characterized in that: The dustproof baffle (565) is also provided with a rotating shaft (5651). One end of the rotating shaft (5651) is connected to a splicing block (5652) and is connected to the edge of the solid plate (5653). One end of the solid plate (5653) has a clamping groove (5654) through which the elastic block (5655) is embedded. One end of the elastic block (5655) is connected to a protective block (5656). The pivot (5651) is perpendicular to the splicing block (5652) and is set symmetrically at the edge of the solid plate (5653). The clamping groove (5654) is opened in the lateral direction and matches the shape of the elastic block (5655). The elastic block (5655) is perpendicular to the protective block (5656) and the protective block (5656) covers one end of the solid plate (5653).

7. The occupational health and safety ventilation device for preventing poisoning according to claim 1, characterized in that: The parallel plate (3) is provided with a restraining block (31). One end of the restraining block (31) is welded to the edge of the plate body (32). The center of the plate body (32) is equipped with a clamping block (33) to position and clamp one end of the activated carbon box (4). The outside of the plate body (33) is connected to a connecting block (34) to position the exhaust pipe (35) and the air supply pipe (36). The restraining block (31) is provided at the upper and lower edges of the plate (32). The clamping block (33) of the plate (32) is rectangular. The connecting block (34) is set symmetrically on the outer surface of the plate (32). The exhaust pipe (35) and the air supply pipe (36) are distributed vertically. The exhaust pipe (35) is polygonal and the air supply pipe (36) is "L" shaped. There is a safe distance between them.

8. The occupational health and safety ventilation device for preventing poisoning according to claim 7, characterized in that: The plate (32) is provided with an overlapping layer (321) at the end face where the clamping block (33) is located. A frame (322) is connected to the overlapping layer (321), and a fixing bolt (323) is connected to the edge of the frame (322). The frame (322) is also provided with a central groove (324) that communicates with the exhaust pipe (35) and the air supply pipe (36). The overlapping layer (321) combined with the clamp (33) restrains one end of the activated carbon box (4) and the surface is equipped with two sets of frames (322) which are set at the upper and lower positions and locked to one end of the exhaust pipe (35) and the air supply pipe (36) respectively by the locking of the fixing bolt (323).

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