Positive pressure type air respirator wearing device

Abstract

The utility model provides a positive pressure type air respirator wearing device. The positive pressure type air respirator wearing device comprises a back plate, an annular paw, a back supporting cushion and a waistband rotating assembly. Wherein the annular paw and the back supporting pad are fixed to the front side and the rear side of the back plate respectively, and the waistband rotating assemblies are installed on the left side and the right side of the back plate through hinges respectively and connected with the second buckle through the waistband. Gas cylinders of different sizes are fixed through cooperation of the first adjusting positioning holes, the annular paws, the limiting belts and the first buckles, and the problem that stability is poor due to shaking of the gas cylinders is solved. Meanwhile, by adopting a structure installation mode of combining double-side back supporting cushions conforming to the curve shape of the waist and back of the human body with flexible damping balls and second adjusting positioning holes, the extrusion and impact of a positive pressure type air respirator on the back of the human body are avoided, meanwhile, the use of people with different heights is met, the physical output of rescue workers is effectively reduced, and the rescue efficiency is improved. And the use requirements of rescue workers are met.

Description

Technical Field

[0001] The utility model patent belongs to the field of firefighting emergency rescue equipment, and relates to a positive pressure air breathing apparatus wearing device, and in particular to an improved air breathing apparatus wearing device. Background Art

[0002] Positive pressure respirators are used to ensure that firefighters can avoid inhaling toxic and harmful gases when fighting fires or performing emergency rescue operations, so as to effectively carry out firefighting, emergency rescue and first aid operations. It mainly includes back plates, pressure reducing valves, air supply valves, masks, back supports and other components, among which the back plate is the intermediate component connecting the gas cylinder and the human body. However, existing positive pressure air respirators still have certain defects during use, such as:

[0003] During the rescue process, conventional rigid air respirators will cause a certain amount of compression to the human back. The back support and the backboard also have problems such as fixed connection position and non-adjustability, making it difficult to meet the comfort requirements of people of different heights.

[0004] On the other hand, when loading air cylinders of different sizes, straps are usually used to connect the air cylinders to the back plate. The straps cannot stably fix the cylinders, causing the cylinders to shake, thereby causing the rescuers' center of gravity to be unstable and increasing the rescuers' physical exertion. Utility Model Content

[0005] The utility model aims to provide a positive pressure air respirator wearing device to solve the problems of the impact force of the back plate of the air respirator on the back of the human body during emergency rescue, the non-adjustable connection position between the back support and the back plate making it difficult to meet the needs of people of different heights, and the inability of the straps to stably fix the gas cylinder, causing the gas cylinder to shake, resulting in unstable center of gravity of the rescue personnel and aggravating the physical exertion of the personnel.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: the positive pressure air respirator wearing device comprises a back plate, an annular hand claw, a back support pad and a belt rotating assembly; one end of the annular hand claw is connected to the connecting block by a hinge, the connecting block is fixed to the sliding block by a bolt, the sliding block slides in the first slide groove, and is fixedly connected to the front side of the back plate by the bolt and the first adjustment positioning hole and the groove; the back support pad is connected to the fixing plate by a flexible shock-absorbing ball, the fixing plate slides in the second slide groove, and is fixedly connected to the rear side of the back plate by the bolt nut and the second adjustment positioning hole; the belt rotating assembly is respectively installed on the left and right sides of the back plate by hinges, and is connected to the buckle 2 by the belt.

[0007] One end of the annular gripper is connected to the first adjustment positioning holes evenly distributed in the left and right first slide grooves of the back plate through a connecting block and a sliding block to achieve the binding of gas cylinders of different specifications, and the other end forms a binding structure through a limiting belt and a buckle.

[0008] Nuts are embedded in the upper and lower ends of the flexible shock-absorbing ball, and the nuts are fixed to the back support pad and the fixing plate respectively by bolts. The back support pads and the fixing plate on the left and right sides of the back plate can rotate relative to each other, and at the same time conform to the curve shape of the human waist and back; the number of the second adjustment positioning holes in the second slide groove is 4, which improves the adaptability of people of different heights.

[0009] The back plate is provided with holes in its structure to reduce its own weight when the strength is met.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model redefines the product through the analysis and summary of the product usage scenarios: it changes the usage mode of traditional products, effectively reduces the physical exertion of rescue personnel, broadens the applicable population of the product, improves the safety of product use, and reduces the fatigue degree of the human waist and back; it adopts a double-sided back support pad that conforms to the curve shape of the human waist and back, a structural design that combines flexible shock absorption and a second adjustment positioning hole, improves the squeezing and impact experience when the human body is worn, and at the same time meets the use of people of different heights; the first adjustment positioning hole, annular hand claw, limit belt and buckle are used to fix gas cylinders of different sizes, which solves the problem of poor human-machine movement stability caused by the shaking of the gas cylinder; the quick-wear buckle structure effectively reduces the equipment wearing time of firefighters and improves the practicality of the positive pressure air respirator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 This is a front view of the structure of a positive pressure air respirator wearing device of the utility model;

[0014] Figure 2 This is a right view of the structure of a positive pressure air respirator wearing device of the utility model;

[0015] Figure 3 This is a left view of the structure of a positive pressure air respirator wearing device of the utility model;

[0016] Figure 4 This is a schematic diagram of the back plate structure in the structure of a positive pressure air respirator wearing device of the utility model;

[0017] Figure 5This is a schematic diagram of the structure of the hand gripper device in the wearing device structure of a positive pressure air respirator of the utility model;

[0018] Figure 6 The utility model is a schematic diagram of the back support device structure in the positive pressure air respirator wearing device structure.

[0019] In the figure: 1. back plate; 2. annular hand claw; 3. limiting belt; 4. buckle one; 5. back support pad; 6. flexible shock-absorbing ball; 7. waist belt rotation assembly; 8. waist belt; 9 buckle two; 10. first slide groove; 11. first adjustment positioning hole; 12. sliding block; 13. connecting block; 14. groove; 15. second slide groove; 16. second adjustment positioning hole; 17. fixing plate; 18. fixing through hole. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings. Figures 1 to 6 A positive pressure air respirator wearing device comprises a back plate 1, an annular hand claw 2, a back support pad 5 and a belt rotating assembly 7; wherein the back plate 1 is provided with holes in its structure when the strength is met to reduce its own weight; one end of the annular hand claw 2 is connected to the connecting block 13 by a hinge, the connecting block 13 is fixed to the sliding block 12 by a bolt, the sliding block 1 slides in the first slide groove 10, and is fixedly connected to the front side of the back plate 1 by the bolt and the first adjustment positioning hole 11 and the groove 14; the back support pad 5 is connected to the fixing plate 17 by a flexible shock-absorbing ball 6, the fixing plate 17 slides in the second slide groove 15, and is fixedly connected to the rear side of the back plate 1 by the bolt nut and the second adjustment positioning hole 16; the belt rotating assembly 7 is respectively installed on the left and right sides of the back plate 1 by hinges, and the belt rotating assembly 7 is connected to the buckle 2 9 by a belt 8.

[0021] Among them, one end of the annular gripper 2 is connected to the first adjustment positioning holes 11 evenly distributed in the first slide grooves 10 on the left and right sides of the back plate 1 through the connecting block 13 and the sliding block 12. There are three first adjustment positioning holes 11 on the left and right sides, and the sliding block 12 is symmetrically fixed. At the same time, the other end of the annular gripper 2 forms a binding structure through a limiting belt and a buckle, which together realizes the binding and fixation of gas cylinders of different specifications.

[0022] Among them, nuts are embedded in the upper and lower ends of the flexible shock-absorbing ball 6, and the nuts are fixed to the back support pad 5 and the fixing plate 17 on the left and right sides of the back plate 1 by bolts. The back support pad 5 conforms to the curve shape of the human waist and back. At the same time, the flexible shock-absorbing ball 6 and the fixing plate 17 can achieve relative rotation, so as to better achieve the fit of the back support pad 5 to the waist and back; the number of the second adjustment positioning holes 16 in the second slide groove 15 is 4, and the fixing plate 17 is fixed to the suitable second adjustment positioning hole 16 according to the needs of people of different heights, so as to improve the adaptability of people of different heights.

Claims

1. A positive pressure air respirator wearing device, characterized in that: The utility model comprises a back plate (1), an annular hand claw (2), a back support pad (5) and a waist belt rotating assembly (7); one end of the annular hand claw (2) is connected to a connecting block (13) by a hinge, and the connecting block (13) is fixed to a sliding block (12) by a bolt, and the sliding block (12) slides in a first slide groove (10) and is fixedly connected to the front side of the back plate (1) by a bolt and a first adjustment positioning hole (11) and a groove (14); the back support pad (5) is connected to a fixing plate (17) by a flexible shock-absorbing ball (6), and the fixing plate (17) slides in a second slide groove (15) and is fixedly connected to the rear side of the back plate (1) by a bolt nut and a second adjustment positioning hole (16); the waist belt rotating assembly (7) is respectively installed on the left and right sides of the back plate (1) by a hinge, and the waist belt rotating assembly (7) is connected to a second buckle (9) by a waist belt (8).

2. A positive pressure air respirator wearing device according to claim 1, characterized in that: The back plate (1) is provided with holes in its structure when the strength requirement is met, so as to reduce its own weight and increase wearing comfort.

3. A positive pressure air respirator wearing device according to claim 1, characterized in that: The other end of the annular hand claw (2) forms a binding structure through a limiting belt (3) and a buckle (4).

4. A positive pressure air respirator wearing device according to claim 1, characterized in that: The number of the first adjustment positioning holes (11) is 6, which are evenly distributed in the first slide grooves (10) on the left and right sides of the back plate (1) to adapt to the binding of gas cylinders of different specifications.

5. A positive pressure air respirator wearing device according to claim 1, characterized in that: The number of the back support pads (5) is two, which are respectively arranged on the left and right sides of the back plate (1) and conform to the curve shape of the waist and back of the human body.

6. A positive pressure air respirator wearing device according to claim 1, characterized in that: Nuts are embedded in the upper and lower ends of the flexible shock-absorbing ball (6), and the nuts are fixed to the back support pad (5) and the fixing plate (17) respectively by bolts. The back support pad (5) and the fixing plate (17) can rotate relative to each other.

7. A positive pressure air respirator wearing device according to claim 1, characterized in that: The number of the second adjustment positioning holes (16) in the second slide groove (15) is 4, which improves the adaptability to people of different heights.

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