CN210904722U

CN210904722U - Chemical plant toxic gas safety device

Info

Publication number: CN210904722U
Application number: CN201921176390.2U
Authority: CN
Inventors: 李琪敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-07-03
Anticipated expiration: 2029-07-24

Abstract

The utility model relates to a chemical plant toxic gas safety device, which comprises a main body, a filter and a lens, wherein the filter and the lens are both arranged on the main body, the shape of the lens is cuboid, an auxiliary mechanism is arranged in the main body, the auxiliary mechanism comprises a scraping rod, a power component and two transmission components, the scraping rod is arranged on one side of the lens, the scraping rod is parallel to the lens, the two transmission components are respectively arranged at the two ends of the scraping rod, the lens is positioned between the two transmission components, the transmission components comprise a first lead screw, a slide block, a driven gear, two first bearing seats and two rotating shafts, the first lead screw is vertical to the scraping rod, the first lead screw is parallel to the lens, the distance between the two ends of the first lead screw and the lens is equal, the chemical plant toxic gas safety device realizes the function of removing water mist on the lens through the auxiliary mechanism, avoid water smoke influence user's sight.

Description

Chemical plant toxic gas safety device

Technical Field

The utility model relates to a toxic gas protection field, in particular to chemical plant toxic gas safety device.

Background

The toxic gas is a gaseous or extremely volatile toxic chemical at normal temperature and normal pressure, is derived from industrial pollution, combustion of coal and petroleum and putrefactive decomposition of biological materials, has stimulation effect on respiratory tract, and is easy to inhale and poison. The mask is a common one of toxic gas protection devices, and is a personal protection device which is worn on the head to protect respiratory organs, eyes and faces of people and prevent toxic substances such as toxic and harmful gas or steam from being injured.

The existing gas mask is easy to generate water mist on the inner wall of the lens in the using process, and the water mist can influence the sight of a user, so that the practicability is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, the toxic gas safety protection device for the chemical plant is provided.

The utility model provides a technical scheme that its technical problem adopted is: a chemical plant toxic gas safety protection device comprises a main body, a filter and lenses, wherein the filter and the lenses are both arranged on the main body, the lenses are cuboid in shape, and an auxiliary mechanism is arranged in the main body;

the auxiliary mechanism comprises a scraping rod, a power assembly and two transmission assemblies, the scraping rod is arranged on one side of the lens, the scraping rod is parallel to the lens, the two transmission assemblies are respectively arranged at two ends of the scraping rod, and the lens is positioned between the two transmission assemblies;

the transmission assembly comprises a first lead screw, a sliding block, a driven gear, two first bearing seats and two rotating shafts, the first lead screw is perpendicular to the scraping rod, the first lead screw is parallel to the lens, the distance between the two ends of the first lead screw and the lens is equal, the sliding block is sleeved on the lead screw, a thread matched with the lead screw is arranged at the joint of the sliding block and the lead screw, the sliding block is fixedly connected with the scraping rod, the rotating shafts and the lead screw are coaxially arranged, the two rotating shafts are respectively fixed at the two ends of the first lead screw, the first bearing seats and the rotating shafts are in one-to-one correspondence, the first bearing seats are arranged on the first lead screw, the first bearing seats are fixed on the inner wall of the main body, the driven gear is arranged at one end of one rotating shaft, which is far away from the first lead screw, the two driven gears are both positioned at one side of the scraping, the power assembly drives the driven gear to rotate.

Preferably, in order to drive the two driven gears to rotate reversely, the power assembly comprises a push plate, a moving rod, a spring, a second screw rod, a ball screw bearing, a second bearing seat and a driving gear, the main body is provided with a mounting hole, the mounting hole is positioned on one side of the scraping rod far away from the lens, the moving rod is parallel to the first screw rod, the moving rod passes through the mounting hole, the moving rod is connected with the mounting hole in a sliding and sealing manner, the second screw rod and the moving rod are coaxially arranged, the push plate is perpendicular to the moving plate, the push plate is positioned on one side of the main body provided with the mounting hole, the push plate is fixed at one end of the moving rod, the second screw rod is fixed at the other end of the moving rod, the spring is arranged between the main body and the push plate, the push plate is connected with the main body through the spring, the inner ring of the ball screw bearing is arranged on the, the driving gear is installed on the outer ring of the ball screw bearing, the driving gear is meshed with the driven gear, the second bearing seat is installed on the outer ring of the ball screw bearing, and the second bearing seat is fixed on the inner wall of the main body.

Preferably, in order to improve the sealing property between the moving rod and the mounting hole, the inner wall of the mounting hole is coated with a sealing grease.

As preferred, in order to avoid lead screw and ball bearing separation, be equipped with the stopper on the carriage release lever, the stopper is located the main part, the stopper is fixed on the carriage release lever, the stopper supports with the inner wall that is equipped with mounting hole one side of main part and leans on.

Preferably, in order to reduce the friction between the first screw and the slider, the first screw is coated with a lubricating oil.

Preferably, the material of the scraping rod is rubber to avoid the scraping of the lens by the scraping rod.

The beneficial effects of the utility model are that, this chemical plant toxic gas safety device has realized cleaing away the function of water smoke on the lens through complementary unit, avoids water smoke to influence user's sight, compares with current complementary unit, and this complementary unit simple structure, design benefit just need not electric drive, environmental protection and energy saving more.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural view of a chemical plant toxic gas safety protection device of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

in the figure: 1. the automatic cleaning device comprises a main body, 2, a filter, 3, a lens, 4, a scraping rod, 5, a first screw rod, 6, a sliding block, 7, a driven gear, 8, a first bearing seat, 9, a rotating shaft, 10, a push plate, 11, a moving rod, 12, a spring, 13, a second screw rod, 14, a ball screw bearing, 15, a second bearing seat, 16, a driving gear and 17, a limiting block.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1, the chemical plant toxic gas safety protection device comprises a main body 1, a filter 2 and a lens 3, wherein the filter 2 and the lens 3 are both mounted on the main body 1, the lens 3 is cuboid, and an auxiliary mechanism is arranged in the main body 1;

wear main part 1 at user's head, avoid toxic gas to get into in main part 1 through filter 2, observe through lens 3 convenient to use axle, here, set up the effect of complementary unit and be clear away the water smoke on the lens 3 inner wall.

As shown in fig. 2-3, the auxiliary mechanism includes a scraping bar 4, a power assembly and two transmission assemblies, the scraping bar 4 is disposed on one side of the lens 3, the scraping bar 4 is parallel to the lens 3, the two transmission assemblies are respectively disposed at two ends of the scraping bar 4, and the lens 3 is located between the two transmission assemblies;

the transmission assembly comprises a first screw rod 5, a sliding block 6, a driven gear 7, two first bearing seats 8 and two rotating shafts 9, the screw rod is perpendicular to the scraping rod 4, the screw rod is parallel to the lens 3, the distance between the two ends of the screw rod and the lens 3 is equal, the sliding block 6 is sleeved on the screw rod, a thread matched with the screw rod is arranged at the joint of the sliding block 6 and the screw rod, the sliding block 6 is fixedly connected with the scraping rod 4, the rotating shafts 9 and the screw rod are coaxially arranged, the two rotating shafts 9 are respectively fixed at the two ends of the first screw rod 5, the first bearing seats 8 correspond to the rotating shafts 9 one to one, the first bearing seats 8 are installed on the first screw rod 5, the first bearing seats 8 are fixed on the inner wall of the main body 1, the driven gear 7 is installed at one end of one of the rotating shaft 9 far away from the first screw rod 5, and the two driven gears 7 are both located, the power assembly is positioned between the two driven gears 7, and the power assembly drives the driven gears 7 to rotate.

Make driven gear 7 rotate through power component, driven gear 7's rotation drives first lead screw 5 through axis of rotation 9 and rotates to make slider 6 remove, slider 6's removal drives scrapes pole 4 and removes on the inner wall of lens 3, thereby can scrape the water smoke on the 3 inner walls of lens down, afterwards, rethread power component makes first lead screw 5 antiport, makes and scrapes pole 4 and reset.

Preferably, in order to drive the two driven gears 7 to rotate reversely, the power assembly includes a push plate 10, a moving rod 11, a spring 12, a second screw 13, a ball screw bearing 14, a second bearing seat 15 and a driving gear 16, the main body 1 is provided with a mounting hole, the mounting hole is located on one side of the scraping rod 4 away from the lens 3, the moving rod 11 is parallel to the first screw 5, the moving rod 11 passes through the mounting hole, the moving rod 11 is connected with the mounting hole in a sliding and sealing manner, the second screw 13 is coaxially arranged with the moving rod 11, the push plate 10 is perpendicular to the moving plate, the push plate 10 is located on one side of the main body 1 where the mounting hole is located, the push plate 10 is fixed at one end of the moving rod 11, the second screw 13 is fixed at the other end of the moving rod 11, the spring 12 is arranged between the main body 1 and the push plate 10, the push plate 10 is connected with the, the inner ring of the ball screw bearing 14 is arranged on the second screw 13, the ball screw bearing 14 is matched with the external thread on the second screw 13, the driving gear 16 is arranged on the outer ring of the ball screw bearing 14, the driving gear 16 is meshed with the driven gear 7, the second bearing seat 15 is arranged on the outer ring of the ball screw bearing 14, and the second bearing seat 15 is fixed on the inner wall of the main body 1.

The user presses the push plate 10 to move towards the direction close to the main body 1, and the spring 12 is compressed, the movement of the push plate 10 drives the second screw 13 to move through the moving rod 11, because the ball screw bearing 14 converts the rotary motion into the linear motion, or converts the linear motion into the bearing of the rotary motion, thereby the ball screw bearing 14 drives the driving gear 16 to rotate under the supporting action of the second bearing seat 15, the driven gear 7 rotates through the rotation of the driving gear 16, after the user loosens the push plate 10, the push plate 10 resets under the elastic action of the spring 12, thereby the driving gear 16 reversely rotates, and the driven gear 7 is driven to reversely rotate.

Preferably, in order to improve the sealing property between the moving rod 11 and the mounting hole, the inner wall of the mounting hole is coated with a sealing grease.

The sealing grease has the function of reducing the gap between the movable rod 11 and the mounting hole and improving the sealing property.

Preferably, in order to avoid the separation of the screw and the ball bearing 14, the moving rod 11 is provided with a limit block 17, the limit block 17 is located in the main body 1, the limit block 17 is fixed on the moving rod 11, and the limit block 17 abuts against the inner wall of the main body 1 on the side where the mounting hole is formed.

The limiting block 17 is used for preventing the push plate 10 from excessively moving towards the direction away from the main body 1 to cause the separation of the screw rod and the ball screw bearing 14, and the limiting effect is achieved.

Preferably, in order to reduce the friction between the first lead screw 5 and the slider 6, the first lead screw 5 is coated with a lubricating oil.

The lubricating oil is used for reducing the friction force between the first screw rod 5 and the sliding block 6 and improving the fluency of the sliding block 6.

Preferably, the material of the scraping bar 4 is rubber in order to avoid the scraping bar 4 from scratching the lens 3.

The rubber texture is comparatively soft, can avoid scraping 4 fish tail lenses 3 of pole, has played the effect of protection lens 3.

The use method of the device comprises the following steps:

wear user's head with main part 1, after water smoke appears on the inner wall of lens 3, the user presses push pedal 10 and moves towards being close to 1 direction of main part to the drive scrapes the pole 4 and moves on the inner wall of lens 3, thereby can scrape the water smoke on the 3 inner walls of lens, afterwards, the user loosens push pedal 10, makes and scrapes the pole 4 and reset.

Compared with the prior art, this poisonous gaseous safety device of chemical plant has realized cleaing away the function of water smoke on the lens 3 through complementary unit, avoids water smoke to influence user's sight, compares with current complementary unit, and this complementary unit simple structure, design benefit just need not electric drive, environmental protection and energy saving more.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A chemical plant toxic gas safety protection device comprises a main body (1), a filter (2) and lenses (3), wherein the filter (2) and the lenses (3) are both arranged on the main body (1), and the lenses (3) are cuboid in shape, and are characterized in that an auxiliary mechanism is arranged in the main body (1);

the auxiliary mechanism comprises a scraping rod (4), a power assembly and two transmission assemblies, the scraping rod (4) is arranged on one side of the lens (3), the scraping rod (4) is parallel to the lens (3), the two transmission assemblies are respectively arranged at two ends of the scraping rod (4), and the lens (3) is positioned between the two transmission assemblies;

the transmission assembly comprises a first lead screw (5), a sliding block (6), a driven gear (7), two first bearing seats (8) and two rotating shafts (9), the lead screw is perpendicular to the scraping rod (4), the lead screw is parallel to the lens (3), the distance between the two ends of the lead screw and the lens (3) is equal, the sliding block (6) is sleeved on the lead screw, a thread matched with the lead screw is arranged at the joint of the sliding block (6) and the lead screw, the sliding block (6) is fixedly connected with the scraping rod (4), the rotating shafts (9) are coaxially arranged with the lead screw, the two rotating shafts (9) are respectively fixed at the two ends of the first lead screw (5), the first bearing seats (8) are in one-to-one correspondence with the rotating shafts (9), the first bearing seats (8) are installed on the first lead screw (5), the first bearing seats (8) are fixed on the inner wall of the main body (1), driven gear (7) are installed in the one end of keeping away from first lead screw (5) of one of them axis of rotation (9), and two driven gear (7) all are located one side of keeping away from lens (3) of scraping pole (4), power component is located between two driven gear (7), power component drive driven gear (7) rotate.

2. The chemical plant toxic gas safety protection device according to claim 1, wherein the power assembly comprises a push plate (10), a moving rod (11), a spring (12), a second screw (13), a ball screw bearing (14), a second bearing seat (15) and a driving gear (16), the main body (1) is provided with a mounting hole, the mounting hole is located on one side of the scraping rod (4) far away from the lens (3), the moving rod (11) is parallel to the first screw (5), the moving rod (11) passes through the mounting hole, the moving rod (11) is connected with the mounting hole in a sliding and sealing manner, the second screw (13) and the moving rod (11) are coaxially arranged, the push plate (10) is perpendicular to the moving plate, the push plate (10) is located on one side of the main body (1) provided with the mounting hole, and the push plate (10) is fixed at one end of the moving rod (11), the other end at carriage release lever (11) is fixed in second lead screw (13), spring (12) set up between main part (1) and push pedal (10), push pedal (10) are connected with main part (1) through spring (12), the inner circle of ball bearing (14) is installed on second lead screw (13), the external screw thread on ball bearing (14) and second lead screw (13) matches, the outer lane at ball bearing (14) is installed in drive gear (16), drive gear (16) and driven gear (7) meshing, the outer lane at ball bearing (14) is installed in second bearing seat (15), second bearing seat (15) are fixed on the inner wall of main part (1).

3. The chemical plant toxic gas safety protection device of claim 2, wherein the inner wall of the mounting hole is coated with sealing grease.

4. The chemical plant toxic gas safety protection device according to claim 2, wherein the moving rod (11) is provided with a limit block (17), the limit block (17) is located in the main body (1), the limit block (17) is fixed on the moving rod (11), and the limit block (17) abuts against the inner wall of the main body (1) on the side provided with the mounting hole.

5. The chemical plant toxic gas safety protection device according to claim 1, wherein the first screw (5) is coated with lubricating oil.

6. Chemical plant toxic gas safety protection device according to claim 1, characterized in that the material of the scraper bar (4) is rubber.