An emergency rescue integrated device with gas detection function in a limited space

Abstract

The application relates to an emergency rescue integrated device with a gas detection function in a limited space, and belongs to the technical field of emergency rescue equipment. The device comprises a tripod and a clamping mechanism. A manual winch is installed on the tripod. A steel wire rope on the manual winch is connected with the clamping mechanism. The clamping mechanism comprises a two-way cylinder. A one-way cylinder is installed at the tail end of the piston rod of the two-way cylinder. A hinged mounting plate is arranged on the cylinder body of the one-way cylinder. Two groups of arc-shaped clamping rods are hingedly installed at the lower end of the hinged mounting plate. Each group of the arc-shaped clamping rods comprises two arc-shaped clamping rods. A plurality of safety pulleys are installed between the two arc-shaped clamping rods of each group. A double-end hinged block is installed at the tail end of the piston rod of the one-way cylinder. Hinged rods are hingedly arranged at the two ends of the double-end hinged block. The hinged rods are hingedly connected with the arc-shaped clamping rods. The application is used for rescuing trapped personnel in a limited space, and is higher in safety and smaller in damage to the trapped personnel.

Description

Technical Field

[0001] This invention relates to an integrated emergency rescue device with gas detection function in a confined space, belonging to the field of emergency rescue equipment technology. Background Technology

[0002] Confined spaces refer to enclosed or partially enclosed spaces with restricted access but accessible to personnel, not designed as fixed workplaces, with poor natural ventilation, and prone to the accumulation of toxic, harmful, flammable, and explosive substances or insufficient oxygen content, such as underground pipe trenches, inspection wells, storage tanks, and reaction vessels. During confined space operations, sudden accidents such as poisoning, asphyxiation, and falls are prone to occur. In such cases, rapid and safe emergency rescue equipment is needed to transfer trapped personnel to a safe area.

[0003] Existing confined space emergency rescue devices mostly employ a tripod and winch structure, using the winch to pull ropes and lift trapped personnel using a clamping mechanism. However, existing clamping mechanisms have several drawbacks: First, in certain confined spaces, when a person is trapped and their body is stuck, the clamping mechanism struggles to smoothly enter the gap between the trapped person's arm and body, and is prone to causing injury. Second, when a trapped person is stuck in a confined space, if the person is squeezed too tightly when using the clamping mechanism to pull them upwards, forcibly pulling them upwards can cause significant injury.

[0004] Therefore, in view of the problems existing in the confined space emergency rescue devices in the current technology, there is an urgent need for a safer integrated confined space operation emergency rescue device. Summary of the Invention

[0005] The purpose of this invention is to solve the technical problems of insufficient safety in the existing technology, which can easily cause injury to trapped personnel, and to provide an integrated emergency rescue device with gas detection function in a confined space.

[0006] This invention is achieved through the following technical solution: This is an integrated emergency rescue device with gas detection function in a confined space, including a tripod and a clamping mechanism for clamping a person. A manual winch is installed on one of the support legs of the tripod. The wire rope on the manual winch is connected to the clamping mechanism. The clamping mechanism includes a two-way cylinder. A gas detector is installed on the cylinder body of the two-way cylinder. A one-way cylinder is installed at the end of the piston rod of the two-way cylinder. A hinged mounting plate is provided on the cylinder body of the one-way cylinder. Two sets of arc-shaped clamping rods are hinged to the lower end of the hinged mounting plate. Each set of arc-shaped clamping rods includes two rods. Multiple safety pulleys are installed between the two arc-shaped clamping rods in a set. The bottom end of the arc-shaped clamping rod is provided with a mounting block. Rotatable clamping auxiliary rollers are installed on the front and rear end faces of the mounting block. A double-headed hinge block is installed at the end of the piston rod of the one-way cylinder. Both ends of the double-headed hinge block are hinged with hinge rods, and the ends of the hinge rods are hinged to the arc-shaped clamping rod.

[0007] The clamping mechanism is rationally designed. A bidirectional cylinder adjusts the distance between two sets of arc-shaped clamping rods to accommodate trapped individuals of different body types. A unidirectional cylinder drives the hinge rod, which in turn opens and closes the arc-shaped clamping rods. The auxiliary rollers on the mounting blocks at the ends of the arc-shaped clamping rods provide excellent guidance when they are inserted into the gap between the trapped person's arm and torso, facilitating quicker clamping and minimizing injury. Safety pulleys between the arc-shaped clamping rods reduce friction with the trapped person's clothing during clamping. Furthermore, the clamping force can be precisely adjusted via the unidirectional cylinder pressure, determined based on the trapped person's weight and physical strength. This prevents severe injury due to excessive resistance during initial lifting after clamping. If the lifting resistance exceeds the pressure set by the unidirectional cylinder, the arc-shaped clamping rods will open, at which point the safety pulleys reduce friction and minimize injury. Gas detectors play a crucial safety role in the overall rescue process, monitoring various air quality indicators within the confined space, including methane, carbon monoxide, hydrogen sulfide, and other harmful gases. They also monitor oxygen concentration in real time. Temperature and humidity detectors monitor the ambient temperature and humidity within the confined space. Both gas and temperature / humidity detectors transmit the monitored data outside the confined space for personnel to view, ensuring the safety of the rescue operation. The gas detector used is a commonly available four-in-one gas detector.

[0008] Further optimization involves attaching a threaded rod to the center of the tripod's top via a threaded connection. An integral ring is located at the bottom of the threaded rod, on which a hook is attached, and a rope pulley is installed below the hook. The threaded rod at the top of the tripod can be adjusted in height via the thread to accommodate limited spaces of varying depths.

[0009] Further optimization involves attaching a hanging ring to the circular ring, with a hook attached to the hanging ring. The combination of the hanging ring and the hook facilitates quick and easy installation and removal.

[0010] Further optimization involves an outer casing of the cylinder body of the bidirectional cylinder with a square tube. A threaded hanging ring is threaded onto the square tube, and a rope hook is installed at the end of the wire rope, which is then hooked onto the threaded hanging ring. The threaded hanging ring is detachable via its threads, and the rope hook is attached to it, resulting in a reliable connection structure that is easy to install and remove.

[0011] A further preferred embodiment includes support mechanisms located on both sides of the bidirectional cylinder, each support mechanism comprising at least one support wheel. These support mechanisms provide auxiliary support, preventing the clamping mechanism from swaying during traction and lifting, thereby reducing the risk of injury to trapped personnel.

[0012] Further optimized, the support mechanism includes four support wheels, with each pair of support wheels coaxially connected. The two sets of support wheels are connected by a connecting rod. A support mechanism is designed with four support wheels, ensuring high stability.

[0013] Further optimization involves installing telescopic mechanisms on both sides of the square tube. These mechanisms include a sliding plate and a slider slidably mounted on the sliding plate. Support wheels are connected to the slider, and a support cylinder is mounted on the sliding plate. The piston rod of the support cylinder is connected to the slider. Depending on the specific conditions of the confined space, the support cylinder drives the support wheel to move, providing support between the inner walls of the confined space, further enhancing the device's adaptability.

[0014] In a further optimized design, a support plate is fixedly mounted on the slider, and the piston rod of the support cylinder is connected to the support plate. The support plate and the support wheel are hinged together via a pneumatic rod. During the movement of the support wheel along the inner wall of the confined space, the pneumatic rod provides excellent support and cushioning, ensuring good maneuverability.

[0015] Further optimization involves installing multiple steering rollers on the support wheels. During the rescue operation, when trapped personnel are inside the confined space, the rollers can be rotated horizontally based on the real-time situation, allowing the support wheels to avoid obstacles on the inner walls of the confined space.

[0016] Further optimization involves using a soft rubber material for the mounting block. This rubber material allows the mounting block to adapt to various on-site rescue situations. When the end of the curved clamping rod is inserted into the gap between the trapped person's arm and torso, the mounting block can deform.

[0017] Compared with the prior art, the beneficial effects of this invention are: The clamping mechanism is rationally designed. A bidirectional cylinder adjusts the distance between two sets of arc-shaped clamping rods to accommodate trapped individuals of different body types. A unidirectional cylinder drives the hinge rod, which in turn opens and closes the arc-shaped clamping rods. The auxiliary rollers on the mounting blocks at the ends of the arc-shaped clamping rods provide excellent guidance when they are inserted into the gap between the trapped person's arm and torso, facilitating quicker clamping and minimizing injury. Safety pulleys between the arc-shaped clamping rods reduce friction with the trapped person's clothing during clamping. Furthermore, the clamping force can be precisely adjusted via the unidirectional cylinder pressure, determined based on the trapped person's weight and physical strength. This prevents severe injury due to excessive resistance during initial lifting after clamping. If the lifting resistance exceeds the pressure set by the unidirectional cylinder, the arc-shaped clamping rods will open, at which point the safety pulleys reduce friction and minimize injury. Gas detectors play a crucial safety role in the overall rescue process, monitoring various air quality indicators within the confined space, including methane, carbon monoxide, hydrogen sulfide, and other harmful gases. They also monitor oxygen concentration in real time. Temperature and humidity detectors monitor the ambient temperature and humidity within the confined space. Both gas and temperature / humidity detectors transmit the monitored data outside the confined space for personnel to view, ensuring the safety of the rescue operation. The gas detector used is a commonly available four-in-one gas detector. Attached Figure Description

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

[0019] Figure 1 This is a structural schematic diagram from a first perspective of a specific embodiment of the present invention.

[0020] Figure 2 This is a structural schematic diagram from a second perspective of a specific embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the clamping mechanism and support mechanism (first perspective) in a specific embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the clamping mechanism and support mechanism (second perspective) in a specific embodiment of the present invention.

[0023] In the diagram: 1. Tripod; 2. Threaded rod; 3. Hanging ring; 4. Hook; 5. Rope pulley; 6. Rope hook; 7. Wire rope; 8. Clamping mechanism; 9. Support mechanism; 10. Manual winch; 11. Square tube; 12. Threaded hanging ring; 13. Two-way cylinder; 14. Z-shaped connecting plate; 15. One-way cylinder; 16. Hinge mounting plate; 17. Double-headed hinge block; 18. Hinge rod; 19. Arc-shaped clamping rod; 20. Safety pulley; 21. Mounting block; 22. Clamping auxiliary roller; 23. Slide plate; 24. Slider; 25. Support cylinder; 26. Support plate; 27. Pneumatic rod; 28. Support wheel; 29. ​​Connecting rod; 30. Steering roller; 31. Gas detector. Detailed Implementation

[0024] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0025] like Figures 1 to 4 The device shown is an integrated emergency rescue device with gas detection function in a confined space. It includes a tripod 1 and a clamping mechanism 8 for clamping a person. A manual winch 10 is installed on one of the support legs of the tripod 1. The wire rope 7 on the manual winch 10 is connected to the clamping mechanism 8. The clamping mechanism 8 includes a double-acting cylinder 13. A gas detector 31 and a temperature and humidity detector are installed on the cylinder body of the double-acting cylinder 13. A one-way cylinder 15 is installed at the end of the piston rod of the double-acting cylinder 13. The cylinder body of the one-way cylinder 15 is fitted with a hinged mounting bracket. The mounting plate 16 has a U-shaped connecting plate 14 on the outer sleeve of the one-way cylinder 15. The lower end of the U-shaped connecting plate 14 is connected to the hinge mounting plate 16. The piston rod of the two-way cylinder 13 is connected to the U-shaped connecting plate 14. Two sets of arc-shaped clamping rods 19 are hinged to the lower end of the hinge mounting plate 16. Each set of arc-shaped clamping rods 19 includes two rods. Multiple safety pulleys 20 are installed between the two arc-shaped clamping rods 19 in each set. The bottom end of the arc-shaped clamping rods 19 is provided with a mounting block 21. Rotatable clamping auxiliary rollers 22 are installed on the front and rear end faces of the mounting block 21. A double-headed hinge block 17 is installed at the end of the piston rod of the one-way cylinder 15. Both ends of the double-headed hinge block 17 are hinged with hinge rods 18, and the ends of the hinge rods 18 are hinged to the arc-shaped clamping rods 19.

[0026] The clamping mechanism 8 is reasonably designed. The distance between the two sets of arc-shaped clamping rods 19 is adjusted by a bidirectional cylinder 13 to accommodate trapped personnel of different body types. A unidirectional cylinder 15 drives the hinge rod 18 to open and close the arc-shaped clamping rods 19. The clamping auxiliary roller 22 on the mounting block 21 at the end of the arc-shaped clamping rod 19 provides excellent guidance when it extends into the gap between the trapped person's arm and torso, facilitating faster clamping and minimizing injury. Safety pulleys between the arc-shaped clamping rods 19 are also included. The safety pulley 20 reduces friction with the trapped person's clothing during clamping. Furthermore, the clamping force can be precisely adjusted via the air pressure of the one-way cylinder 15, specifically determined by the trapped person's weight and strength. This prevents severe injury due to excessive resistance during initial lifting after clamping. If the lifting resistance exceeds the air pressure set by the one-way cylinder 15, the arc-shaped clamping rod 19 will open, at which point the safety pulley 20 reduces friction and minimizes injury. The gas detector 31 plays a crucial safety role in the overall rescue process, monitoring various air parameters within the space, including methane, carbon monoxide, hydrogen sulfide, and other harmful gases. It also monitors oxygen concentration in real time. The temperature and humidity detector monitors the ambient temperature and humidity within the confined space. Both the gas detector 31 and the temperature and humidity detector transmit the monitored data outside the confined space for personnel to view, ensuring the safety of the rescue. The gas detector 31 is a commonly used four-in-one gas detector.

[0027] The tripod 1 has a threaded rod 2 threadedly mounted at the center of its top. A ring is integrally formed at the bottom of the threaded rod 2, and a hook 4 is attached to this ring. A rope pulley 5 is installed below the hook 4, and a hanging ring 3 is fitted onto the ring. The hook 4 is then attached to the hanging ring 3. The threaded rod 2 at the top of the tripod 1 can be adjusted in height via the thread to accommodate different depths of limited space. The cooperation between the hanging ring 3 and the hook 4 facilitates quick and easy installation and removal.

[0028] The cylinder body of the bidirectional cylinder 13 is fitted with a square tube 11. A threaded hanging ring 12 is threaded onto the square tube 11. A rope hook 6 is installed at the end of the wire rope 7 and is hung on the threaded hanging ring 12. The threaded hanging ring 12 is detachable via threads, and the rope hook 6 is hung on the threaded hanging ring 12. The connection structure is reliable and easy to install and remove.

[0029] This also includes support mechanisms 9 located on both sides of the bidirectional cylinder 13. Each support mechanism 9 comprises four support wheels 28, which are coaxially connected in pairs. The two sets of support wheels 28 are connected by a connecting rod 29. The support mechanism 9 provides auxiliary support, ensuring high stability and preventing the clamping mechanism 9 from swaying during traction and lifting, thus reducing the risk of injury to trapped personnel.

[0030] The square tube 11 has telescopic mechanisms installed on both sides. These mechanisms include a sliding plate 23 and a slider 24 slidably mounted on the sliding plate 23. A support wheel 28 is connected to the slider 24. A support cylinder 25 is mounted on the sliding plate 23, and the piston rod of the support cylinder 25 is connected to the slider 24. Depending on the specific conditions of the trapped space, the support cylinder 25 drives the support wheel 28 to move, providing support between the inner walls of the trapped space, further enhancing the adaptability of the device.

[0031] The slider 24 is fixedly equipped with a support plate 26, and the piston rod of the support cylinder 25 is connected to the support plate 26. The support plate 26 and the support wheel 28 are hinged together by a pneumatic rod 27. During the movement of the support wheel 28 along the inner wall of the confined space, the pneumatic rod 27 provides good support and cushioning, ensuring good passage.

[0032] The support wheel 28 is equipped with multiple steering rollers 30, which are installed on the inner and outer edges of the support wheel 28. During the rescue operation, the steering rollers 30 rotate horizontally according to the real-time situation, allowing the support wheel 28 to avoid obstacles on the inner wall of the trapped space.

[0033] The mounting block 21 is made of soft rubber material. The rubber mounting block 21 can adapt to various different on-site rescue situations. When the end of the arc-shaped clamping rod 19 is inserted into the gap between the trapped person's arm and torso, the mounting block 21 can deform.

[0034] Working principle: In practical use, the present invention first adjusts the length of the support leg of the tripod 1 according to the size of the confined space, and places the tripod 1 at the entrance of the confined space to ensure stable placement; then rotates the threaded rod 2 to adjust the height of the rope pulley 5 to match the depth of the confined space; the wire rope 7 is passed through the rope pulley 5, and the rope hook 6 is hung on the threaded hanging ring 12 to complete the connection between the wire rope 7 and the clamping mechanism 8.

[0035] During the rescue, the operator lowers the steel wire rope 7 using a manual winch 10 to send the clamping mechanism 8 to the location of the trapped person; the bidirectional cylinder 13 is activated to adjust the distance between the two sets of arc-shaped clamping rods 19 to fit the body shape of the trapped person; the unidirectional cylinder 15 is activated, its piston rod extends, driving the double-headed hinge block 17 to move downwards, pulling the arc-shaped clamping rods 19 to close through the hinge rod 18, so that the arc-shaped clamping rods 19 fit against the body of the trapped person. The clamping auxiliary roller 22 on the mounting block 21 plays a guiding role when the arm and torso are initially inserted, reducing injury to the trapped person; at the same time, the support cylinder 25 is activated to adjust the distance between the support wheels 28, so that the support wheels 28 contact the inner wall of the confined space, providing auxiliary support. The pneumatic rod 27 adapts to various conditions of the inner wall of the trapped space, ensuring the stability and passage of the clamping mechanism 8. In addition, during the lifting and rescue process, depending on the real-time situation on site, the support wheels 28 can be rotated in the horizontal plane to avoid some obstacles on the inner wall of the trapped space. During the rescue operation, the gas detector 31 plays a crucial safety role, monitoring various air quality indicators within the confined space, including methane, carbon monoxide, hydrogen sulfide, and other harmful gases. It also monitors oxygen concentration in real time. The temperature and humidity detector monitors the ambient temperature and humidity within the confined space. Both the gas detector 31 and the temperature and humidity detector transmit the monitored data outside the confined space for personnel to view, ensuring the safety of the rescue operation. The gas detector 31 is a commonly used four-in-one gas detector.

[0036] After clamping is completed, the operator rotates the manual winch 10 to wind up the wire rope 7, and changes the traction direction through the rope pulley 5 to slowly lift the clamping mechanism 8 and the trapped person to the entrance of the confined space to complete the rescue. After the rescue is completed, the one-way cylinder 15 is activated, its piston rod retracts, which drives the arc-shaped clamping rod 19 to open, releasing the trapped person. Then, the clamping mechanism 8 is lowered through the manual winch 10, the connection between the rope hook 6 and the threaded hanging ring 12 is disassembled, and the device can be retrieved.

[0037] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0038] The terms "upper," "lower," "outer," "inner," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish relative positional relationships and are not necessarily qualitative. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated emergency rescue device with gas detection function in a confined space, comprising a tripod (1) and a clamping mechanism (8) for clamping a person, wherein a manual winch (10) is mounted on one of the supporting legs of the tripod (1), and a wire rope (7) on the manual winch (10) is connected to the clamping mechanism (8), characterized in that, The clamping mechanism (8) includes a bidirectional cylinder (13), a gas detector (31) is installed on the cylinder body of the bidirectional cylinder (13), a one-way cylinder (15) is installed at the end of the piston rod of the bidirectional cylinder (13), a hinged mounting plate (16) is provided on the cylinder body of the one-way cylinder (15), two sets of arc-shaped clamping rods (19) are hinged on the lower end of the hinged mounting plate (16), a set of arc-shaped clamping rods (19) includes two, a set of two arc-shaped clamping rods (19) is installed between the two arc-shaped clamping rods (19), a mounting block (21) is provided at the bottom end of the arc-shaped clamping rod (19), and a rotatable clamping auxiliary roller (22) is installed on the front and rear end faces of the mounting block (21). The piston rod of the one-way cylinder (15) is equipped with a double-headed hinge block (17), and both ends of the double-headed hinge block (17) are hinged with hinge rods (18). The ends of the hinge rods (18) are hinged to the arc-shaped clamping rods (19).

2. The integrated emergency rescue device with gas detection function in a confined space according to claim 1, characterized in that, The tripod (1) has a threaded rod (2) installed at the center of the top. The bottom of the threaded rod (2) is integrally provided with a ring, on which a hook (4) is hung. A rope pulley (5) is installed below the hook (4).

3. The integrated emergency rescue device with gas detection function in a confined space according to claim 2, characterized in that, A hanging ring (3) is fitted on the ring, and a hook (4) is hung on the hanging ring (3).

4. The integrated emergency rescue device with gas detection function in a confined space according to claim 1, characterized in that, The cylinder body of the two-way cylinder (13) is fitted with a square tube (11), and a threaded hanging ring (12) is installed on the square tube (11) by thread. A rope hook (6) is installed at the end of the wire rope (7), and the rope hook (6) is hung on the threaded hanging ring (12).

5. An integrated emergency rescue device with gas detection function in a confined space according to claim 1, characterized in that, It also includes support mechanisms (9) located on both sides of the bidirectional cylinder (13), the support mechanism (9) including at least one support wheel (28).

6. An integrated emergency rescue device with gas detection function in a confined space according to claim 5, characterized in that, The support mechanism (9) includes four support wheels (28), which are coaxially connected in pairs. The two sets of support wheels (28) are connected by a connecting rod (29).

7. An integrated emergency rescue device with gas detection function in a confined space as described in claim 5 or 6, characterized in that, The square tube (11) is equipped with telescopic mechanisms on both sides. The telescopic mechanisms include a slide plate (23) and a slider (24) that is slidably mounted on the slide plate (23). The support wheel (28) is connected to the slider (24). A support cylinder (25) is installed on the slide plate (23). The piston rod of the support cylinder (25) is connected to the slider (24).

8. An integrated emergency rescue device with gas detection function in a confined space according to claim 7, characterized in that, A support plate (26) is fixed on the slider (24), the piston rod of the support cylinder (25) is connected to the support plate (26), and the support plate (26) and the support wheel (28) are hinged together by a pneumatic rod (27).

9. An integrated emergency rescue device with gas detection function in a confined space according to claim 1, characterized in that, The support wheel (28) is equipped with multiple steering rollers (30).

10. An integrated emergency rescue device with gas detection function in a confined space according to claim 1, characterized in that, The mounting block (21) is made of soft rubber material.

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