Ventilation device for chemical safety

Abstract

The utility model provides a ventilation device for chemical safety, which relates to the technical field of ventilation devices and comprises a mounting cover plate, a fan is mounted on the surface of one end of the mounting cover plate, a ventilation pipe is rotatably mounted on the surface of the other end of the mounting cover plate, and an adjusting component for adjusting the ventilation pipe is arranged on the mounting cover plate. A first gear is arranged at the output end of the servo motor to rotate, a second gear is driven by the first gear to rotate, the ventilation pipe can be driven to rotate at the same time, the ventilation pipe can be driven to rotate, a filter cartridge is fixedly arranged on the surface of the pipe cover, and a positioning ventilation assembly is arranged on the ventilation pipe. And meanwhile, a plurality of air inlet funnels are made to swing, air can be sucked in the maximum range, and the ventilation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation device technical field, specifically, relate to a ventilation device for chemical safety. BACKGROUND

[0002] The chemical work can produce flammable and explosive harmful gas in the production process. In order to ensure the normal operation of production and ensure the working environment of the occupational health safety of operating personnel, it is necessary to carry out normal ventilation in the factory building. In order to prevent the harmful substances generated in the production process from diffusing to other spaces, local ventilation should also be considered to be set in the part where the harmful substance emission is relatively concentrated, such as patent application number CN202121413252.9 a ventilation device for chemical safety, including the shell, the shell left and right side center all are connected with the connecting pipe, the shell interior upper part is equipped with the screw hole two, the screw hole two interior screw thread is connected with the threaded rod, the threaded rod bottom fixedly connected with the connecting block one, the shell interior lower surface is equipped with the slot, the device is installed when the ventilation pipe and the connecting pipe, the sealing ring can extrude the spring, so that the sealing ring and the ventilation pipe and the connecting pipe between the fit is more closely, and then increase the sealing property of the ventilation pipe, and through the fastening bolt, the installation and dismounting of the connecting pipe are convenient, and the active carbon filter screen is installed in the shell interior, so that the active carbon filter screen can purify the gas discharged in the chemical production, so as to increase the quality of the discharged gas, and the active carbon filter screen is taken out from the shell interior for replacement through the rotating threaded rod, in the above technical scheme, only local ventilation work can be carried out, the air flow in other ranges is slow, the ventilation range is small, and the efficiency of ventilation is affected. CONTENT OF UTILITY MODEL

[0003] The main purpose of the utility model is to provide a ventilation device for chemical safety, which can effectively solve the problems in the background art.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: a ventilation device for chemical safety, comprising a mounting cover plate, a fan is mounted on one end surface of the mounting cover plate, a ventilation pipe is rotatably mounted on the other end surface of the mounting cover plate, an adjusting assembly for adjusting the ventilation pipe is arranged on the mounting cover plate, a pipe cover is mounted on one end of the ventilation pipe, a filter cartridge is fixedly mounted on the surface of the pipe cover, and a positioning ventilation assembly is arranged on the ventilation pipe.

[0005] As a preferred, positioning plates are fixedly mounted on the surfaces of the two sides of the fan, a plurality of second mounting holes are equidistantly and penetratively formed in the positioning plates, and a plurality of first mounting holes are equidistantly formed in the surface of the mounting cover plate.

[0006] As a preferred, a sealing groove is formed in the surface of one end of the ventilation pipe, a sealing ring is fixedly mounted on the surface of one end of the pipe cover, and the sealing ring is arranged in the sealing groove.

[0007] Preferably, a support ring is fixedly installed on the inner wall of the ventilation duct, and a plurality of positioning holes are equidistantly opened on the surface of the support ring. An installation ring is fixedly installed on one end surface of the filter cylinder, and a positioning post is fixedly installed on the surface of the installation ring, with the positioning post disposed inside the positioning hole.

[0008] Preferably, the positioning and ventilation assembly includes a plurality of screw sleeves and a plurality of connecting screw cylinders, wherein the plurality of screw sleeves are equidistantly arranged on the periphery of the ventilation pipe and the plurality of connecting screw cylinders are equidistantly arranged on the periphery of the filter cylinder.

[0009] Preferably, each of the threaded sleeves is fitted with a hollow screw in the middle, the lower end of the hollow screw is provided with an air inlet funnel, and the upper end of the hollow screw is fitted inside the connecting screw cylinder.

[0010] Preferably, the adjustment assembly includes a servo motor and a second gear. The servo motor is fixedly installed on the front surface of the mounting cover, the second gear is fixedly installed in the middle of the ventilation pipe, and a first gear is fixedly installed at the output end of the servo motor. The first gear and the second gear are meshed and connected.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) The first gear is driven to rotate by the output end of the servo motor, which in turn drives the second gear to rotate. At the same time, the ventilation pipe is rotated, and several air intake funnels are swung, which can draw in air over the maximum range and improve ventilation efficiency.

[0013] (2) By rotating the hollow screw, the hollow screw and the screw sleeve move downwards, and the hollow screw can be disengaged from the inside of the connecting screw cylinder. At this time, there is no contact between the filter cylinder and the hollow screw, and the filter cylinder can be pulled inside the ventilation pipe to disassemble the filter cylinder. Conversely, the filter cylinder can be installed. This device can easily and conveniently disassemble and install the filter cylinder and replace the filter cylinder. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a ventilation device for chemical safety according to this utility model;

[0015] Figure 2 This is a partial side view of the overall structure of a ventilation device for chemical safety according to this utility model;

[0016] Figure 3 This is a schematic diagram of the ventilation pipe structure of a ventilation device for chemical safety according to this utility model;

[0017] Figure 4The utility model discloses a filter cylinder structure schematic diagram of chemical industry safety ventilation device.

[0018] In the drawing: 1, ventilation pipe; 2, pipe cover; 3, positioning ventilation assembly; 301, screw sleeve; 302, hollow screw rod; 303, air inlet funnel; 304, connecting screw cylinder; 4, adjusting assembly; 401, servo motor; 402, first gear; 403, second gear; 5, mounting cover plate; 6, first mounting hole; 7, positioning plate; 8, second mounting hole; 9, fan; 10, filter cylinder; 11, mounting ring; 12, positioning column; 13, sealing ring; 14, sealing groove; 15, supporting ring; 16, positioning hole. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] As shown in Figure 1 , 2 , 3, a kind of chemical industry safety ventilation device, including mounting cover plate 5, the fan 9 is installed in the surface of one end of mounting cover plate 5, the ventilation pipe 1 is rotatably installed in the surface of other end of mounting cover plate 5, adjusting assembly 4 is provided on mounting cover plate 5, and the ventilation pipe 1 is adjusted, the pipe cover 2 is installed in one end of ventilation pipe 1, the filter cylinder 10 is fixedly installed in the surface of pipe cover 2, and positioning ventilation assembly 3 is provided on ventilation pipe 1.

[0021] As shown in Figure 1 , 2 , the positioning plate 7 is fixedly installed in the surface of both sides of fan 9, a plurality of second mounting holes 8 are inductively penetrated in the positioning plate 7, and a plurality of first mounting holes 6 are inductively penetrated in the surface of mounting cover plate 5.

[0022] As shown in Figure 1 , the sealing groove 14 is inductively penetrated in the surface of one end of ventilation pipe 1, the sealing ring 13 is fixedly installed in the surface of one end of pipe cover 2, the sealing ring 13 is arranged in sealing groove 14, and the connection between pipe cover 2 and ventilation pipe 1 is more closely.

[0023] As shown in Figure 1 , 2As shown, the inner wall of the ventilation pipe 1 is fixedly installed with a support ring 15, a plurality of positioning holes 16 are equidistantly formed on the surface of the support ring 15, one end of the filter cartridge 10 is fixedly installed with a mounting ring 11, the mounting ring 11 is fixedly installed with a positioning column 12, and the positioning column 12 is arranged in the positioning hole 16. By arranging the positioning column 12 in the positioning hole 16, the position of the filter cartridge 10 can be more accurately installed in the ventilation pipe 1.

[0024] As shown in Figure 2 , 3 , 4, the positioning ventilation assembly 3 comprises a plurality of screw sleeves 301 and a plurality of connecting screw cylinders 304, the screw sleeves 301 are equidistantly arranged on the surface of the ventilation pipe 1, the connecting screw cylinders 304 are equidistantly arranged on the surface of the filter cartridge 10, a hollow screw rod 302 is engagedly installed in the middle of each screw sleeve 301, an air inlet funnel 303 is arranged at the lower end of the hollow screw rod 302, and the upper end of the hollow screw rod 302 is engagedly arranged in the connecting screw cylinder 304. By rotating the hollow screw rod 302 by the worker, the hollow screw rod 302 is moved downward in cooperation with the screw sleeve 301, and at the same time, the hollow screw rod 302 can be separated from the connecting screw cylinder 304. At this time, the filter cartridge 10 is not in contact with the hollow screw rod 302, and at this time, the filter cartridge 10 can be pulled in the ventilation pipe 1 to disassemble the filter cartridge 10. Conversely, the filter cartridge 10 can be installed. This device can easily and conveniently disassemble and install the filter cartridge 10 and replace the filter cartridge 10.

[0025] As shown in Figure 1 , the adjusting assembly 4 comprises a servo motor 401 and a second gear 403, the servo motor 401 is fixedly installed on the front surface of the mounting cover plate 5, and the second gear 403 is fixedly installed in the middle of the ventilation pipe 1. The output end of the servo motor 401 is fixedly installed with a first gear 402, and the first gear 402 is engagedly connected with the second gear 403. By driving the first gear 402 to rotate through the output end of the servo motor 401, the first gear 402 drives the second gear 403 to rotate, which can drive the ventilation pipe 1 to rotate, and at the same time, the air inlet funnels 303 can swing to maximize the air suction and improve the ventilation efficiency.

[0026] The working principle of the ventilation device for chemical safety is as follows:

[0027] When in use, when the device is used for ventilation work, the device is installed in the appropriate position, at this time the fan 9 is operated to generate suction, because the middle of the cover plate 5 is hollow, at this time the air enters the filter cylinder 10 inside the ventilation pipe 1 from the air inlet funnel 303, the impurities in the air can be filtered through the filter cylinder 10, and then discharged from the fan 9 to perform the ventilation work, during the work process, the first gear 402 is driven to rotate by the output end of the servo motor 401, the second gear 403 is driven to rotate by the first gear 402, and the ventilation pipe 1 can be driven to rotate at the same time, and a plurality of air inlet funnels 303 can be swung, which can maximize the suction of air and improve the ventilation efficiency. When it is necessary to clean and replace the filter cylinder 10, the hollow screw rod 302 is rotated by the worker, so that the hollow screw rod 302 moves downward in cooperation with the screw sleeve 301, and at the same time the hollow screw rod 302 can be separated from the connecting screw cylinder 304, at this time the filter cylinder 10 is not in contact with the hollow screw rod 302, at this time the filter cylinder 10 can be pulled in the ventilation pipe 1 to disassemble the filter cylinder 10, and vice versa. The filter cylinder 10 can be installed. The device can easily and conveniently disassemble and install the filter cylinder 10, and replace the filter cylinder 10.

[0028] The above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not limitations on the embodiments of the utility model. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description, and all the embodiments cannot be exhausted here. Any obvious changes or variations derived from the technical solution of the utility model still fall within the protection scope of the utility model.

Claims

1. A ventilation device for chemical safety comprising a mounting cover plate (5), characterized in that: The installation cover plate (5) one end surface is provided with a fan (9), the installation cover plate (5) the other end surface is rotatably provided with a ventilation pipe (1), the installation cover plate (5) is provided with adjusting assembly (4) for adjusting ventilation pipe (1), the ventilation pipe (1) one end is provided with pipe cover (2), the pipe cover (2) surface is fixedly provided with filter cartridge (10), the ventilation pipe (1) is provided with positioning ventilation assembly (3).

2. The ventilation device for chemical safety according to claim 1, characterized in that: The both sides surface of the fan (9) is fixedly provided with positioning plate (7), a plurality of second installation holes (8) are equidistantly penetrated in the positioning plate (7), a plurality of first installation holes (6) are equidistantly provided in the surface of the installation cover plate (5).

3. The ventilation device for chemical safety according to claim 1, characterized in that: The ventilation pipe (1) one end surface is provided with sealing groove (14), the pipe cover (2) one end surface is fixedly provided with sealing ring (13), the sealing ring (13) is arranged in the sealing groove (14) inside.

4. The ventilation device for chemical industry safety according to claim 1, characterized in that: The ventilation pipe (1) inner wall is fixedly provided with support ring (15), a plurality of positioning holes (16) are equidistantly provided in the surface of the support ring (15), the filter cartridge (10) one end surface is fixedly provided with mounting ring (11), the mounting ring (11) surface is fixedly provided with positioning column (12), the positioning column (12) is arranged in the positioning hole (16) inside.

5. The ventilation device for chemical safety according to claim 1, characterized in that: The positioning ventilation assembly (3) comprises a plurality of screw sleeves (301), a plurality of connecting screw barrels (304), a plurality of screw sleeves (301) are equidistantly arranged on the surface of the ventilation pipe (1), a plurality of connecting screw barrels (304) are equidistantly arranged on the surface of the filter cartridge (10).

6. The ventilation device for chemical industry safety according to claim 5, characterized in that: The hollow screw rod (302) is arranged in the screw sleeve (301), the hollow screw rod (302) lower end is provided with air inlet funnel (303), the hollow screw rod (302) upper end is arranged in the connecting screw barrel (304) inside.

7. The ventilation device for chemical industry safety according to claim 6, characterized in that: The adjusting assembly (4) comprises servo motor (401), second gear (403), the servo motor (401) is fixedly installed on the front surface of the installation cover plate (5), the second gear (403) is fixedly installed in the middle of the ventilation pipe (1), the servo motor (401) output is fixedly provided with first gear (402), the first gear (402) is connected with the second gear (403).

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