Search and rescue type automatic compressed oxygen self-rescuer with buffering mechanism

Abstract

The utility model relates to life saving equipment technical field, concretely relates to a search and rescue type automatic compressed oxygen self-rescuer with buffer mechanism including protective shell, is provided with two groups of buffer mechanism in the protective shell, each group of buffer mechanism is by two hinged blocks, thick sleeve, second spring, stress plate and thin insertion rod and is composed, two hinged blocks are all through the rotating shaft respectively rotation connection in the upper inner wall of protective shell and the upper end of oxygen cylinder, through the synergies of two groups of buffer mechanism and anti -collision mechanism, utilize the elastic deformation of hinged block, spring and buffer plate and absorb multidimensional impact force, reduce the rigid collision risk of oxygen cylinder and protective shell, the structural stability of equipment under the falling or extrusion environment is improved significantly, the bee calling alarm can real -time monitoring oxygen supply state, triggers the alarm when the air pressure is unusual or connects failure, provides the emergency early warning for the user, improves the rescue success rate.

Description

Technical Field

[0001] This utility model relates to the field of lifesaving equipment technology, specifically to a search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism. Background Technology

[0002] Self-rescue devices are equipment used when accidents occur in mines, causing oxygen deficiency or the presence of toxic or harmful gases that endanger the lives of miners. They can also serve as secondary protective equipment for coal mine rescue teams. In recent years, due to the frequent occurrence of mine accidents caused by harmful and toxic gases in my country, self-rescue devices have gradually become essential equipment carried by miners when going down into the mine. Currently, the most widely used self-rescue devices include three types: filter self-rescue devices, chemical oxygen self-rescue devices, and compressed oxygen self-rescue devices.

[0003] A search revealed Chinese patent CN 2868336 Y, which discloses an improved compressed oxygen self-rescue device. This device includes a housing and an oxygen supply system (composed of an oxygen cylinder, pressure reducer, pressure gauge, and manual replenishment valve) and a breathing system (composed of an airbag and a purifier) ​​installed within the housing. Its structural features include: the purifier tank is composed of a housing and a cover; and the airbag has a cubic structure. This invention offers a simple and convenient medication replacement process with good results. Furthermore, it avoids the defects of the recessed airbag structure, reducing the risk of aging and cracking during repeated use, thus improving durability and reducing operating costs. It is a simple, rationally designed, easy-to-use, and durable improved compressed oxygen self-rescue device.

[0004] In disaster relief efforts such as mine accidents and earthquakes, compressed oxygen self-rescue devices are crucial for ensuring the breathing safety of trapped personnel. The aforementioned patent can improve the durability of the device, but traditional self-rescue devices have obvious defects in complex search and rescue environments. For example, there is a lack of effective buffer structure between the oxygen cylinder and the outer shell, and violent collisions can easily cause the cylinder to shift or break, resulting in oxygen leakage. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism. Through the synergistic effect of two sets of buffer mechanisms and anti-collision mechanisms, the elastic deformation of the hinge block, spring and buffer plate is used to absorb multi-dimensional impact forces, reduce the risk of rigid collision between oxygen cylinder and protective shell, and significantly improve the structural stability of the device in the event of a fall or compression.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism, comprising a protective shell, wherein two sets of buffer mechanisms are provided inside the protective shell, each set of buffer mechanisms consisting of two hinge blocks, a thick sleeve, a second spring, a force plate, and a thin rod. The two hinge blocks are rotatably connected to the upper inner wall of the protective shell and the upper end of the oxygen cylinder respectively via a rotating shaft. The thick sleeve is fixedly connected to the upper end of one of the hinge blocks, the second spring is fixedly connected inside the thick sleeve, the force plate is slidably connected inside the thick sleeve, and the thin rod is fixedly connected to the lower end of the other hinge block and is fixedly connected to the force plate. An oxygen transmission tube is fixedly connected to the circumferential surface of the oxygen cylinder, and a bite block is detachably connected to one end of the oxygen transmission tube. Two sets of anti-collision mechanisms are also provided inside the protective shell, both sets of anti-collision mechanisms being used to reduce the collision between the oxygen cylinder and the inner wall of the protective shell.

[0007] Each of the aforementioned anti-collision mechanisms consists of a buffer plate and two first springs. The two first springs are fixedly connected to the inner wall of one side of the protective shell, and the buffer plate is fixedly connected to one end of the two first springs.

[0008] Furthermore, a docking plate and a mounting plate are fixedly connected to the adjacent ends of the oxygen transmission tube and the bite block, respectively. A docking tube is fixedly connected to one end of the mounting plate. Two sets of snap-fit ​​mechanisms are provided on one side of the docking plate. Each set of snap-fit ​​mechanisms consists of a docking groove, a connecting block, a placement groove, a third spring, a snap-fit ​​block, and a snap-fit ​​groove. The docking groove is opened at one end of the docking plate. The connecting block is fixedly connected to the circumferential surface of the docking tube and matches the docking groove. The placement groove and the snap-fit ​​block are respectively opened at one end of the connecting block and the circumferential surface of the docking plate. The third spring is fixedly connected to the inner wall of one side of the placement groove. The snap-fit ​​block is fixedly connected to one end of the third spring and is movably snapped into the snap-fit ​​groove.

[0009] Furthermore, a disassembly groove is provided at one end of the connecting block, and a disassembly block is fixedly connected to the circumferential surface of the snap-fit ​​block, and the disassembly block is slidably connected in the disassembly groove.

[0010] Furthermore, a limiting rod is fixedly connected between the inner walls of the two sides of the disassembly groove, and a horizontal hole is opened at one end of the disassembly block, and the disassembly block is slidably connected to the circumferential surface of the limiting rod through the horizontal hole.

[0011] Furthermore, a telescopic rod is fixedly connected to one side of the inner wall of the placement groove, and a third spring is sleeved on the circumferential surface of the telescopic rod.

[0012] Furthermore, telescopic tubes are fixedly connected to both the upper and lower ends of the bite block, and adhesive plates are fixedly connected to the far ends of the two telescopic tubes.

[0013] Furthermore, a valve is provided on the circumferential surface of the oxygen transmission pipe, and a buzzer alarm is fixedly connected to the upper end of the protective shell.

[0014] This utility model has the following beneficial effects:

[0015] 1. Through the coordinated action of two sets of buffer mechanisms and anti-collision mechanisms, the elastic deformation of the hinge block, spring and buffer plate absorbs multidimensional impact force, reduces the risk of rigid collision between oxygen cylinder and protective shell, significantly improves the structural stability of equipment in fall or compression environment, and the buzzer alarm can monitor the oxygen supply status in real time and trigger the alarm when the air pressure is abnormal or the connection fails, providing users with emergency warning and improving the success rate of rescue.

[0016] 2. The combination design of the docking plate, snap-fit ​​block and third spring enables quick locking and separation of the oxygen transmission tube and the bite block, which not only ensures the sealing of the interface, but also facilitates the replacement or cleaning of parts and extends the service life.

[0017] 3. The fit between the telescopic tube and the fitting plate can be automatically adjusted according to the user's oral cavity size, enhancing the adaptability of the mouthpiece, preventing air leakage and reducing the pressure during long-term wear. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A;

[0022] Figure 4 This is a schematic diagram of the anti-collision mechanism;

[0023] Figure 5 for Figure 4 A magnified structural diagram at point B in the middle.

[0024] Reference numerals: 1. Protective shell; 2. Buzzer alarm; 3. Oxygen transmission pipe; 4. Valve; 5. Mounting plate; 6. Biting block; 7. Telescopic pipe; 8. Adhesive plate; 9. Butt joint plate; 10. First spring; 11. Buffer plate; 12. Oxygen cylinder; 13. Hinge block; 14. Coarse sleeve; 15. Second spring; 16. Force plate; 17. Thin insertion rod; 18. Butt joint pipe; 19. Snap-fit ​​groove; 20. Connecting block; 21. Placement groove; 22. Third spring; 23. Telescopic rod; 24. Disassembly groove; 25. Limiting rod; 26. Disassembly block; 27. Snap-fit ​​block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The present invention will be further described below with reference to the embodiments.

[0027] See attached document Figure 1-5 A search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism includes a protective shell 1. The protective shell 1 is provided with two sets of buffer mechanisms. Each set of buffer mechanisms consists of two hinge blocks 13, a thick sleeve 14, a second spring 15, a force plate 16, and a thin rod 17. The two hinge blocks 13 are rotatably connected to the upper inner wall of the protective shell 1 and the upper end of the oxygen cylinder 12 respectively through a rotating shaft. The thick sleeve 14 is fixedly connected to the upper end of one of the hinge blocks 13. The second spring 15 is fixedly connected to the thick sleeve 14. The force plate 16 is slidably connected to the thick sleeve 14. The thin rod 17 is fixedly connected to the lower end of the other hinge block 13 and is fixedly connected to the force plate 16. An oxygen transmission tube 3 is fixedly connected to the circumferential surface of the oxygen cylinder 12. One end of the oxygen transmission tube 3 is detachably connected to a bite block 6. The protective shell 1 is also provided with two sets of anti-collision mechanisms. Both sets of anti-collision mechanisms are used to reduce the collision between the oxygen cylinder 12 and the inner wall of the protective shell 1.

[0028] Each anti-collision mechanism consists of a buffer plate 11 and two first springs 10. The two first springs 10 are fixedly connected to the inner wall of one side of the protective shell 1, and the buffer plate 11 is fixedly connected to one end of the two first springs 10.

[0029] In a specific embodiment of this utility model, the first hinge block 13 is connected to the inner wall of the top of the protective shell 1 via a rotating shaft, the second hinge block 13 is connected to the top of the oxygen cylinder 12 via a rotating shaft, the coarse sleeve 14 is fixed to the upper end of the first hinge block 13, and the second spring 15 is fixed inside it, the force plate 16 is slidably embedded in the coarse sleeve 14, and the thin insertion rod 17 is fixed to the lower end of the second hinge block 13, and passes through the force plate 16 and contacts the second spring 15. When the self-rescue device is impacted, the oxygen cylinder 12 swings, causing the thin insertion rod 17 to compress. The second spring 15 buffers the longitudinal impact force; at the same time, the oxygen transmission tube 3 is connected to the bite block 6 through a detachable interface. The two sets of anti-collision mechanisms inside the protective shell 1 further absorb the lateral impact energy. One end of each of the two first springs 10 is fixed to the inner wall of the left and right sides of the protective shell 1, and the other end is connected to the buffer plate 11. When the oxygen cylinder 12 shifts laterally, its body is squeezed against the buffer plate 11, and the first spring 10 is deformed under pressure. It offsets the lateral impact force through elastic reset, thus avoiding a hard collision between the oxygen cylinder 12 and the protective shell 1.

[0030] Please refer to the details. Figure 1-5 The oxygen transmission tube 3 and the bite block 6 are respectively fixedly connected to the adjacent ends of the docking plate 9 and the mounting plate 5. The mounting plate 5 is fixedly connected to the docking tube 18. Two sets of snap-fit ​​mechanisms are provided on one side of the docking plate 9. Each set of snap-fit ​​mechanisms consists of a docking groove, a connecting block 20, a placement groove 21, a third spring 22, a snap-fit ​​block 27 and a snap-fit ​​groove 19. The docking groove is opened at one end of the docking plate 9. The connecting block 20 is fixedly connected to the circumferential surface of the docking tube 18 and the connecting block 20 matches the docking groove. The placement groove 21 and the snap-fit ​​block 27 are respectively opened at one end of the connecting block 20 and the circumferential surface of the docking plate 9. The third spring 22 is fixedly connected to the inner wall of one side of the placement groove 21. The snap-fit ​​block 27 is fixedly connected to one end of the third spring 22 and the snap-fit ​​block 27 is movably snapped into the snap-fit ​​groove 19.

[0031] One end of the connecting block 20 is provided with a disassembly groove 24, and a disassembly block 26 is fixedly connected to the circumferential surface of the snap-fit ​​block 27. The disassembly block 26 is slidably connected in the disassembly groove 24.

[0032] A limiting rod 25 is fixedly connected between the inner walls of both sides of the disassembly groove 24. A horizontal hole is opened at one end of the disassembly block 26, and the disassembly block 26 is slidably connected to the circumferential surface of the limiting rod 25 through the horizontal hole.

[0033] In this embodiment: the end of the oxygen transmission tube 3 is fixed with a docking plate 9, the mounting plate 5 of the bite block 6 is fixed with a docking tube 18, the docking tube 18 is inserted into the docking groove of the docking plate 9, the connecting block 20 is embedded in the docking groove, and the snap-fit ​​block 27 in the connecting block 20 is snapped into the snap-fit ​​groove 19 of the docking plate 9 under the push of the third spring 22, thus completing the locking. Pressing the disassembly block 26 causes the snap-fit ​​block 27 to slide horizontally along the limiting rod 25 and disengage from the snap-fit ​​groove 19, thereby separating the docking tube 18 from the docking plate 9. The third spring 22 is sleeved on the outside of the telescopic rod 23 to ensure that the snap-fit ​​block 27 is accurately reset, thus achieving quick disassembly and assembly.

[0034] Please refer to the details. Figure 1-5 A telescopic rod 23 is fixedly connected to one side of the inner wall of the placement slot 21. A third spring 22 is sleeved on the circumferential surface of the telescopic rod 23. Telescopic tubes 7 are fixedly connected to both the upper and lower ends of the bite block 6. Adhesive plates 8 are fixedly connected to the far ends of the two telescopic tubes 7. A valve 4 is provided on the circumferential surface of the oxygen transmission tube 3. A buzzer alarm 2 is fixedly connected to the upper end of the protective shell 1.

[0035] In this embodiment: the telescopic rod 23 can prevent damage caused by the bending deformation of the third spring 22. When the user bites the bite block 6, the oral cavity squeezes the fitting plate 8. The telescopic tube 7 adapts to the oral cavity size to ensure sealing. The fitting plate 8 is made of silicone to avoid compressing the gums. A valve 4 is set on the oxygen transmission tube 3 for manually adjusting the oxygen flow rate. The top of the protective shell 1 integrates a buzzer alarm 2, which has a built-in air pressure sensor. When the pressure of the oxygen cylinder 12 is lower than 0.5MPa or the interface leaks, the buzzer alarm 2 will sound a 90dB alarm. The valve 4 adopts a knob design, and the rotation angle corresponds linearly to the oxygen flow rate.

[0036] The working principle of this utility model:

[0037] When the self-rescue device is subjected to a fall or longitudinal impact, the oxygen cylinder 12 is displaced by inertia, causing the hinge block 13 to rotate around the axis. At this time, the thin insert 17 fixed to the lower hinge block 13 pushes the force plate 16 to slide inside the coarse sleeve 14, compressing the second spring 15. The impact energy is absorbed through the deformation of the spring. At the same time, the hinge structure converts the rigid impact into rotational motion, reducing the instantaneous acceleration of the oxygen cylinder 12. If the oxygen cylinder 12 is laterally displaced due to a side collision, its body is squeezed against the buffer plate 11, forcing the first spring 10 to compress and deform. The elastic damping effect of the first spring 10 can slow down the movement speed of the oxygen cylinder 12 and evenly distribute the impact pressure through the arc-shaped contact surface of the buffer plate 11, avoiding direct collision between the oxygen cylinder 12 and the inner wall of the protective shell 1.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism, comprising a protective shell (1), characterized in that: The protective shell (1) is equipped with two sets of buffer mechanisms. Each set of buffer mechanisms consists of two hinge blocks (13), a coarse sleeve (14), a second spring (15), a force-bearing plate (16), and a thin insert (17). The two hinge blocks (13) are rotatably connected to the upper inner wall of the protective shell (1) and the upper end of the oxygen cylinder (12) respectively via a rotating shaft. The coarse sleeve (14) is fixedly connected to the upper end of one of the hinge blocks (13), and the second spring (15) is fixedly connected inside the coarse sleeve (14). The plate (16) is slidably connected to the coarse sleeve (14), the thin rod (17) is fixedly connected to the lower end of another hinge block (13), and the thin rod (17) is fixedly connected to the force plate (16). The oxygen cylinder (12) is fixedly connected to the circumferential surface of the oxygen cylinder (12), and one end of the oxygen cylinder (3) is detachably connected to the mouth block (6). The protective shell (1) is also provided with two sets of anti-collision mechanisms. Both sets of anti-collision mechanisms are used to reduce the collision between the oxygen cylinder (12) and the inner wall of the protective shell (1). Each of the anti-collision mechanisms consists of a buffer plate (11) and two first springs (10). The two first springs (10) are fixedly connected to the inner wall of one side of the protective shell (1), and the buffer plate (11) is fixedly connected to one end of the two first springs (10).

2. A search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism according to claim 1, characterized in that, The oxygen transmission tube (3) and the bite block (6) are respectively fixedly connected to a docking plate (9) and a mounting plate (5) at their adjacent ends. One end of the mounting plate (5) is fixedly connected to a docking tube (18). Two sets of snap-fit ​​mechanisms are provided on one side of the docking plate (9). Each set of snap-fit ​​mechanisms consists of a docking groove, a connecting block (20), a placement groove (21), a third spring (22), a snap-fit ​​block (27), and a snap-fit ​​groove (19). The docking groove is opened at one end of the docking plate (9). The connecting block (20) is fixedly connected to the circumferential surface of the connecting pipe (18), and the connecting block (20) matches the docking groove. The placement groove (21) and the snap-fit ​​block (27) are respectively opened at one end of the connecting block (20) and the circumferential surface of the docking plate (9). The third spring (22) is fixedly connected to the inner wall of one side of the placement groove (21). The snap-fit ​​block (27) is fixedly connected to one end of the third spring (22), and the snap-fit ​​block (27) is movably snapped into the snap-fit ​​groove (19).

3. A search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism according to claim 2, characterized in that, One end of the connecting block (20) is provided with a disassembly groove (24), and a disassembly block (26) is fixedly connected to the circumferential surface of the snap-fit ​​block (27). The disassembly block (26) is slidably connected in the disassembly groove (24).

4. A search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism according to claim 3, characterized in that, A limiting rod (25) is fixedly connected between the inner walls of the two sides of the disassembly groove (24). A horizontal hole is provided at one end of the disassembly block (26), and the disassembly block (26) is slidably connected to the circumferential surface of the limiting rod (25) through the horizontal hole.

5. A search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism according to claim 2, characterized in that, A telescopic rod (23) is fixedly connected to one side of the inner wall of the placement groove (21), and a third spring (22) is sleeved on the circumferential surface of the telescopic rod (23).

6. A search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism according to claim 2, characterized in that, The upper and lower ends of the bite block (6) are fixedly connected to telescopic tubes (7), and the far ends of the two telescopic tubes (7) are fixedly connected to bonding plates (8).

7. A search and rescue type automatic compressed oxygen self-rescue device with a buffer mechanism according to claim 1, characterized in that, A valve (4) is provided on the circumferential surface of the oxygen transmission pipe (3), and a buzzer alarm (2) is fixedly connected to the upper end of the protective shell (1).

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