Underground rescue device

Abstract

The utility model provides an underground rescue device which comprises a lifting cylinder and further comprises a plurality of supporting arms arranged on the bottom side of the lifting cylinder in a swinging mode and an air bag detachably arranged at the bottom end of the lifting cylinder, a driving mechanism used for driving the supporting arms is arranged in the lifting cylinder, and an air pipe is arranged in the lifting cylinder in a penetrating mode. One end of the air pipe is communicated with the driving mechanism and the air bag, and the other end of the air pipe is connected with an air source which is clean air containing oxygen; a communication module used for communication between underground personnel and ground personnel is arranged on the top side of the lifting cylinder, a lifting rope is arranged at the top end of the lifting cylinder, and the other end of the lifting rope is connected with a rescue tripod. According to the underground rescue device, the linkage support is driven by the air cylinder to move, the supporting arm is driven by the pin shaft on the linkage support to be unfolded, and therefore unfolding of the supporting arm is achieved, the supporting arm is simple in structure and higher in unfolding efficiency, underground rescue is safe and reliable, and the rescue effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of underground rescue tools, in particular to an underground rescue device. Background Art

[0002] When people fall into a well, they need to be rescued in time, especially in deep wells with small diameters. Rescuers cannot go down easily, and there is insufficient oxygen supply in the well. Going down the well without authorization can easily cause harm to rescuers. When rescuing people stuck in the middle of the well, improper operation will often cause the people to continue falling, which brings difficulties to the rescue.

[0003] Chinese invention patent authorization publication number CN105641827B discloses an underground rescue device, comprising a fixed component, one end of which is connected to a rescue rope and, after being placed underground, can be fixed to the well wall; a mechanical arm, fixed to the fixed component and used to suspend tools, composed of a plurality of independently inflated sub-airbags connected together, and the deflection of the mechanical arm is controlled by controlling the tension difference formed by the air pressure in the sub-airbags; and an inflation device, placed above the well, used to control the inflation pressure in the sub-airbags of the mechanical arm. The above-mentioned solution uses an inflatable fixing device to provide a base point for the mechanical arm and a flexible bending mechanical arm, with controllable force. It is flexible and easy to operate underground, and highly safe. However, in the above-mentioned prior art, controlling the mechanical arm through the air pressure in the airbags is not only complex in structure and unreliable, but also lacks support for underground personnel. Improper operation can easily cause underground personnel stuck in the middle of the well to fall further. Existing underground rescue devices are inconvenient to operate and have poor rescue effectiveness. The present solution addresses this technical problem. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides an underground rescue device, which drives the linkage bracket to move through the cylinder, and drives the support arm to unfold through the pin shaft on the linkage bracket, thereby realizing the unfolding of the support arm. The support arm has a simple structure and higher unfolding efficiency, making underground rescue safe and reliable and achieving better rescue effects.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: an underground rescue device, comprising a lifting cylinder, a plurality of support arms swingably arranged on the bottom side of the lifting cylinder, and an air bag detachably arranged at the bottom end of the lifting cylinder, a driving mechanism for driving the support arms being arranged in the lifting cylinder, an air pipe being arranged through the lifting cylinder, one end of the air pipe being respectively connected to the driving mechanism and the air bag, and the other end of the air pipe being connected to an air source, the air source being a clean gas containing oxygen;

[0006] A communication module for communication between underground personnel and surface personnel is provided on the top side of the lifting cylinder, and a lifting rope is provided on the top end of the lifting cylinder, and the other end of the lifting rope is connected to a rescue tripod.

[0007] A plurality of elongated grooves are provided in a circular array on the side of the lifting cylinder, a rotating shaft is provided on the side of the support arm, and the support arm is rotatably arranged in the elongated groove by the rotating shaft. An elongated hole is provided at one end of the support arm, and the driving mechanism includes a cylinder arranged in the lifting cylinder and a linkage bracket connected to the telescopic end of the cylinder. A plurality of pin shafts corresponding to the support arm are arranged in an array on the linkage bracket, and the pin shafts are slidably arranged in the elongated hole, and the air pipe is connected to the cylinder.

[0008] The bottom end of the lifting cylinder is provided with a plurality of elastic baffles for carrying the airbag, one end of the elastic baffle is connected to the lifting cylinder, and the other end of the elastic baffle is a free end facing the airbag;

[0009] An extension tube is provided between the airbag and the trachea, one end of the extension tube is connected to the airbag, and the other end of the extension tube is detachably connected to the trachea, and a valve 1 is provided at one end of the trachea close to the extension tube.

[0010] An exhaust pipe for exhausting air into the well is provided on the side of the air pipe, and a second valve is provided on the exhaust pipe.

[0011] The linkage bracket is provided with a sleeve for accommodating the cylinder, and the telescopic end of the cylinder is connected to the bottom of the sleeve.

[0012] A cable is provided in the lifting cylinder, and the valve 1, the valve 2 and the communication module are all electrically connected to the cable, and the cable is connected to the control module.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The linkage bracket is driven to move by the cylinder, and the support arm is driven to unfold by the pin shaft on the linkage bracket, thereby realizing the unfolding of the support arm. The support arm has a simple structure and higher unfolding efficiency. The cylinder drive method effectively reduces the generation of electric sparks and avoids the risk of explosion of flammable gas underground, making underground rescue safer and more reliable, and achieving better rescue results.

[0015] (2) The airbag provides effective support for underground personnel, preventing them from falling further due to improper operation, and improving the underground rescue effect;

[0016] (3) The communication module enables underground personnel to communicate with those on the surface. The communication module is equipped with a microphone, a speaker and a camera, which can observe the status of the underground personnel and interact with them to take effective rescue measures, thus avoiding panic or loss of consciousness of the underground personnel to be rescued, stabilizing the emotions of the underground personnel and making the rescue process safer and more reliable.

[0017] (4) By setting up an exhaust pipe to discharge clean oxygen-containing gas into the well, open valve 2, and exhaust the polluted gas in the well through the exhaust pipe to replace it and discharge it through the wellhead, the lack of oxygen in the well is avoided, the living environment of the personnel in the well is better, and the rescue effect of the personnel in the well is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 2 This utility model Figure 1 A partial enlarged structural diagram of part A;

[0020] Figure 3 This is a schematic diagram of the connection structure between the drive mechanism and the support arm of the utility model;

[0021] Figure 4 It is a structural diagram of the driving mechanism of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the utility model in an expanded state.

[0023] Among them, in the figure: 1. lifting cylinder; 11. elongated groove; 12. elastic baffle; 2. supporting arm; 21. rotating shaft; 22. elongated hole; 3. airbag; 31. extension tube; 4. driving mechanism; 41. cylinder; 42. linkage bracket; 421. pin shaft; 422. sleeve; 5. air pipe; 51. valve 1; 6. communication module; 7. lifting rope; 8. exhaust pipe; 81. valve 2; 9. cable. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0025] See also Figure 1-Figure 5 A downhole rescue device includes a lifting cylinder 1, a plurality of support arms 2 swingably arranged on the bottom side of the lifting cylinder 1, and an air bag 3 detachably arranged at the bottom end of the lifting cylinder 1. A driving mechanism 4 for driving the support arms 2 is provided in the lifting cylinder 1. An air pipe 5 is provided through the lifting cylinder 1. One end of the air pipe 5 is connected to the driving mechanism 4 and the air bag 3 respectively. The other end of the air pipe 5 is connected to a gas source, which is a clean gas containing oxygen.

[0026] A communication module 6 for communication between underground personnel and surface personnel is provided on the top side of the hoisting cylinder 1 , and a lifting rope 7 is provided on the top end of the hoisting cylinder 1 , and the other end of the lifting rope 7 is connected to a rescue tripod.

[0027] A plurality of elongated grooves 11 are provided in a circular array on the side of the lifting cylinder 1, a rotating shaft 21 is provided on the side of the support arm 2, and the support arm 2 is rotatably arranged in the elongated groove 11 through the rotating shaft 21. An elongated hole 22 is provided at one end of the support arm 2. The driving mechanism 4 includes a cylinder 41 arranged in the lifting cylinder 1 and a linkage bracket 42 connected to the telescopic end of the cylinder 41. A plurality of pin shafts 421 corresponding to the support arm 2 are arranged in an array on the linkage bracket 42. The pin shaft 421 is slidably set in the elongated hole 22, and the air pipe 5 is connected to the cylinder 41.

[0028] The bottom end of the lifting cylinder 1 is provided with a plurality of elastic baffles 12 for carrying the airbag 3. One end of the elastic baffle 12 is connected to the lifting cylinder 1, and the other end of the elastic baffle 12 is a free end facing the airbag 3.

[0029] An extension tube 31 is provided between the airbag 3 and the trachea 5. One end of the extension tube 31 is connected to the airbag 3, and the other end of the extension tube 31 is detachably connected to the trachea 5. A valve 51 is provided at one end of the trachea 5 close to the extension tube 31.

[0030] An exhaust pipe 8 for exhausting air into the well is provided on the side of the air pipe 5, and a valve 81 is provided on the exhaust pipe 8.

[0031] The linkage bracket 42 is provided with a sleeve 422 for accommodating the cylinder 41 , and the telescopic end of the cylinder 41 is connected to the bottom of the sleeve 422 .

[0032] A cable 9 is provided in the lifting cylinder 1 , and valve 1 51 , valve 2 81 and communication module 6 are all electrically connected to the cable 9 , which is connected to a control module.

[0033] The specific working process of this utility model:

[0034] Before use, the support arms 2 are in a closed state on the lifting cylinder 1. Figure 1 As shown, at this time, the extension tube 31 on the airbag 3 is first connected to the air pipe 5. After the connection, the extension tube 31 and the airbag 3 are both stored in the elastic blocking piece 12. The lifting tube 1 is slowly lowered into the well by pulling the lifting rope 7 through the rescue tripod until the bottom of the lifting tube 1 is lower than the personnel underground, and the lifting tube 1 is hoisted into place.

[0035] The air source is introduced into the air pipe 5, and the valve 51 is opened through the control module. At this time, a part of the air source enters the airbag 3 through the extension tube 31, and the airbag 3 gradually expands and overcomes the constraint of the elastic baffle 12, gradually separating from the lifting cylinder 1. When the inflation continues, the airbag 3 is in close contact with the well wall. At this time, the airbag 3 plays a role in supporting the underground personnel in the middle of the well, preventing the underground personnel in the middle of the well from continuing to fall. At the same time, the air source enters the cylinder 41, and the telescopic end of the cylinder 41 extends, driving the linkage bracket 42 to move toward the pin 421. The pin 421 drives one end of the support arm 2 to slide along the elongated slot 11, and the support arm 2 moves around the rotating shaft 21, so that the support arm 2 is unfolded. Figure 5 At this time, the underground personnel can sit on several unfolded support arms 2, hold the lifting cylinder 1 with both hands, and the personnel on the surface can operate the rescue tripod and lift the underground personnel to the surface through the lifting rope 7. The length of the extension tube 31 is greater than the depth of the well. When the lifting tube rises, the airbag 3 is still supported on the well wall. When the underground personnel are completely lifted to a safe place, the air source stops supplying gas, and the airbag 3 shrinks and separates from the well wall. At this time, the airbag 3 can be smoothly taken out from the well, completing the entire rescue process.

[0036] The rescue tripod is a retractable leg made of high-strength, lightweight alloy. It features a safety factor greater than 10, self-locking devices for raising and lowering, and a specially crafted stainless steel wire rope that is highly flexible and resistant to damage from rust or oil depletion. The rescue tripod is currently available and will not be described in detail here.

[0037] The linkage bracket 42 is driven to move by the cylinder 41, and the support arm 2 is driven to unfold by the pin shaft 421 on the linkage bracket 42, thereby realizing the unfolding of the support arm 2. The support arm 2 has a simple structure and higher unfolding efficiency. The drive mode of the cylinder 41 avoids the generation of electric current, thereby avoiding the risk of flammable gas explosion underground, making underground rescue safe and reliable, and achieving better rescue effect.

[0038] The provision of the airbag 3 provides effective support for the underground personnel, preventing them from falling further due to improper operation, and improving the underground rescue effect. The extension tube 31 of the airbag 3 is detachable from the trachea 5, and when the airbag 3 is no longer needed, it can be removed from the elastic baffle 12 of the lifting cylinder 1.

[0039] During the rescue process, the communication module 6 enables the underground personnel to communicate with the surface personnel. Specifically, the communication module 6 is provided with a microphone, a speaker and a camera. Through the setting of the communication module 6, the status of the underground personnel can be observed and the communication module can interact with the underground personnel to take effective rescue measures, thereby avoiding the underground personnel to be rescued from panic or losing consciousness, stabilizing the emotions of the underground personnel, and making the rescue process safer and more reliable.

[0040] By setting up an exhaust pipe 8 to discharge clean oxygen-containing gas into the well, opening valve 2 81, and discharging gas through the exhaust pipe 8 to replace the polluted gas in the well and discharge it through the wellhead, the lack of oxygen in the well is avoided, the living environment of the underground personnel is better, and the rescue effect of the underground personnel is further improved.

[0041] The technical features not described in the present invention can be realized by or by adopting the existing technology, and will not be described in detail here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. An underground rescue device, comprising a lifting cylinder (1), characterized in that: The lifting cylinder (1) further comprises a plurality of support arms (2) swingably arranged at the bottom side of the lifting cylinder (1), an air bag (3) detachably arranged at the bottom end of the lifting cylinder (1), a driving mechanism (4) for driving the support arms (2) arranged in the lifting cylinder (1), an air pipe (5) passing through the lifting cylinder (1), one end of the air pipe (5) being respectively connected to the driving mechanism (4) and the air bag (3), and the other end of the air pipe (5) being connected to an air source, which is a clean gas containing oxygen; A communication module (6) for communicating between underground personnel and surface personnel is provided on the top side of the lifting cylinder (1), and a lifting rope (7) is provided on the top end of the lifting cylinder (1), with the other end of the lifting rope (7) being connected to a rescue tripod.

2. The underground rescue device according to claim 1, characterized in that: The side annular array of the lifting cylinder (1) is provided with a plurality of elongated slots (11), the side of the support arm (2) is provided with a rotating shaft (21), the support arm (2) is rotatably arranged in the elongated slot (11) through the rotating shaft (21), one end of the support arm (2) is provided with an elongated hole (22), the driving mechanism (4) includes a cylinder (41) arranged in the lifting cylinder (1), and a linkage bracket (42) connected to the telescopic end of the cylinder (41), a plurality of pins (421) corresponding to the support arm (2) are arranged in an array on the linkage bracket (42), the pins (421) are slidably arranged in the elongated hole (22), and the air pipe (5) is connected to the cylinder (41).

3. The underground rescue device according to claim 2, characterized in that: The bottom end array of the lifting cylinder (1) is provided with a plurality of elastic baffles (12) for carrying the airbag (3), one end of the elastic baffle (12) is connected to the lifting cylinder (1), and the other end of the elastic baffle (12) is a free end facing the airbag (3); An extension tube (31) is provided between the airbag (3) and the trachea (5), one end of the extension tube (31) is connected to the airbag (3), and the other end of the extension tube (31) is detachably connected to the trachea (5), and a valve 1 (51) is provided at one end of the trachea (5) close to the extension tube (31).

4. The underground rescue device according to claim 3, characterized in that: An exhaust pipe (8) for exhausting air into the well is provided on the side of the air pipe (5), and a second valve (81) is provided on the exhaust pipe (8).

5. The underground rescue device according to claim 2, characterized in that: The linkage bracket (42) is provided with a sleeve (422) for accommodating the cylinder (41), and the telescopic end of the cylinder (41) is connected to the bottom of the sleeve (422).

6. The underground rescue device according to claim 4, characterized in that: A cable (9) is provided in the lifting cylinder (1), and the valve 1 (51), the valve 2 (81), and the communication module (6) are all electrically connected to the cable (9).

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