Fire-fighting underground rescue rod
By designing a fire-fighting well rescue pole and adopting an arm structure that can be deployed using airbags, electromagnetic or mechanical devices, combined with an underwater probe, the problems of low efficiency and poor safety of existing rescue devices have been solved, achieving efficient and safe well rescue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 刘辉
- Filing Date
- 2026-02-14
- Publication Date
- 2026-04-14
AI Technical Summary
Existing fire rescue equipment is inefficient and unsafe when rescuing people trapped in wells, and poses a significant risk of injury.
A fire-fighting well rescue pole has been designed, including a main pipe and an deployable single or folding arm device. The arm can be opened and fixed by an airbag, electromagnetic or mechanical device. Combined with an underwater probe and an inflation device, it ensures that the rescue pole can be effectively deployed in the well and that the trapped person can be safely lifted.
It has enabled efficient and safe downhole rescue, reduced the risk of injury to trapped personnel, adapted to different well diameters and the condition of trapped personnel, and improved rescue efficiency.
Smart Images
Figure CN121854147A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electrically operated rock-controlled mechanical technology, and further to electrically operated rock-controlled fire-fighting equipment, especially fire-fighting well rescue poles. Background Technology
[0002] Firefighting is a crucial task in modern society. Following the transfer of fire brigades to other departments, their functions have expanded, with a significant increase in the proportion of work related to disaster prevention, mitigation, and rescue. In some cases, it is necessary to rescue people trapped in wells. Currently, in China, wells around 50 centimeters deep present considerable challenges in rescuing those who accidentally fall in. Existing rescue equipment typically consists of a single pole with a hook, which is often insufficient for efficient and safe rescues.
[0003] In response to this, the inventor developed a "fire-fighting well rescue pole". Summary of the Invention
[0004] The purpose of this invention is to provide a fire-fighting well rescue pole that is easy to operate, has few limitations, is safe and reliable, highly efficient, and greatly reduces the risk of injury to trapped individuals.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fire-fighting well rescue pole includes a main pipe with a rope connection hole at the upper end. The main pipe is characterized by having several single-arm or folding arm devices at the lower part of the main pipe. The lower ends of the single-arm or folding arms are movably connected to the main pipe via a shaft, and the single-arm or folding arms can be opened radially around the shaft with the main pipe as the center.
[0006] further: Between the single-arm or folding arm device and the main tube, there is an opening and closing device that causes the single-arm or folding arm to open; the opening and closing device includes one of an airbag device, a mechanical device, or an electromagnetic device.
[0007] The airbag device is in the shape of a life ring, with or without a window; when it has a window, the window is located on the airbag between adjacent single-arm or folding-arm devices.
[0008] The single arm has several fixed rods A at the lower end of the main tube, and an arm shaft is provided on the fixed rods A for connecting the lower end of the single arm. The proximal end of the single arm is provided with an arm seat; the distal end of the single arm may or may not be provided with rollers.
[0009] The single arm is configured as a spring telescopic structure or a tension-fixed structure; the spring telescopic structure is that the single arm is divided into two parts, an outer tube and an inner tube, which are connected together and have a built-in spring; the tension-fixed structure is that the single arm is divided into two parts, an outer tube and an inner tube, which are connected together and are fixed after being stretched.
[0010] The folding arm device includes: an upper arm and a lower arm that are movably connected by an inter-arm shaft; the upper end of the upper arm is movably connected to a sleeve by an upper arm shaft; the sleeve is fitted over the main tube and can slide up and down on the main tube; and the lower end of the lower arm is movably connected to a fixed rod B by a lower arm shaft; rollers may or may not be provided on the inter-arm shaft.
[0011] The upper end of the sleeve is provided with two handrails, and at least one handrail is provided with a push switch. The push switch is connected to a connecting rod, and the other end of the connecting rod is connected to a telescopic pin. The telescopic pin is inserted into the insertion hole of the main tube.
[0012] The airbag device is connected to an inflation device via an air tube. The inflation device can be either a remote-controlled inflation device or an automatic inflation device. The remote-controlled inflation device includes: an antenna connecting a remote control module and a battery pack; the remote control module and battery pack are connected to an electric telescopic device via wires; the electric telescopic device extends a top rod A, which acts on a firing pin seat; the front end of the firing pin seat is connected to a firing pin; the front end of the firing pin seat is equipped with a spring A; the firing pin acts on the gas cylinder to release air, and the air enters the air tube through the air hole, thereby inflating the airbag. The automatic inflation device includes: a spring B at the rear end of a top rod; a firing pin seat at the front end of top rod B; a firing pin connected to the front end of the firing pin seat; the front end of the firing pin seat is equipped with a spring A; the firing pin acts on the gas cylinder to release air, and the air enters the air tube through the air hole, thereby inflating the airbag. A water inlet is located at the rear end of the outer shell B, and a drain hole is located on one side of the front end of the outer shell B. A water-soluble sheet is located at the front end of the top rod B to block the top rod B.
[0013] An underwater probe is installed at the lower end of the main pipe. The underwater probe is connected to an electronic screen or wireless module on the surface of the well via an electric wire inside the main pipe, which is used to observe the underwater situation by connecting a mobile phone through the electronic screen or wireless module.
[0014] When the electromagnetic device is used to lower the rescue rod in the magnetic fire well, the electromagnetic switch is operated, and the electromagnet causes the single arm or folding arm to attract with the main pipe, so that the single arm or folding arm does not open; when it reaches the position, the electromagnetic switch is operated, and the single arm or folding arm repels the main pipe, thereby opening the single arm or folding arm.
[0015] The beneficial effects of this invention are: the main pipe of the rescue pole and several single-arm or folding-arm devices connected to its lower part can be directly lowered into the well without restriction. After reaching a certain position under the trapped person, the single-arm or folding-arm devices can be opened by gravity or with the help of an opening and closing device; then, the rescue pole can be lifted up to rescue or retrieve the trapped person from the well. It is convenient to operate, has few limitations, is safe and reliable, highly efficient, and greatly reduces the risk of injury to the trapped person.
[0016] To enable those skilled in the art to better understand the present invention and to make the above-mentioned objectives, features and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to embodiments. Attached Figure Description
[0017] Figure 1 , Figure 2 These are schematic diagrams of two state structures in Embodiment 1 of the present invention. Figure 3 for Figure 2 Top view of the structure Figure 4 , Figure 5 These are schematic diagrams of two state structures in Embodiment 2 of the present invention. Figure 6 for Figure 5 Top view of the structure Figure 7 This is a schematic diagram of the structure of Embodiment 3 of the present invention. Figure 8 , Figure 9 The diagram shows two automatic inflation devices of the present invention.
[0018] In the diagram: Rope connection hole 1, main pipe 2, fixed rod A3, movable rod shaft 31, single arm 4, arm seat 41, support arm 42, roller shaft 43, roller 5, airbag 6, cable tie 61, airbag window 62, inflation device 7, air pipe 8, sleeve 9, upper arm shaft 91, upper arm 10, inter-arm shaft 101, stop block 12, lower arm 13, lower arm shaft 131, fixed rod B14, handrail 15, push switch 16, connecting rod 17, telescopic pin 18, sleeve 19, antenna 20, remote control module and battery pack 21, wire 22, outer casing A23, electric telescopic device 24, top rod A25, air hole 26, firing pin seat 27, spring A28, gas cylinder 29, sealing gasket 30, sealing ring 31, firing pin 32, drain hole 34, water-soluble sheet 35, spring B36, outer casing B37, water inlet hole 38, top rod B39. Detailed Implementation Example 1
[0019] like Figure 1 , 2 As shown in Figure 3, Figure 1 This is the single-arm 4-closed position. Figure 2 This is a single-arm, four-open position. Figure 3 for Figure 2 A top-view schematic diagram. The fire-fighting well rescue pole includes a main pipe 2 (the diameter of the main pipe 2 can be set to 4-6 cm, and the length is approximately 2 meters). The upper end of the main pipe 2 has a rope connection hole 1, which is used to connect a rope (or thin rod), so that the rescue pole can be lowered into the well via the rope (or thin rod). A single arm 4 is set at the lower part of the main pipe 2. The single arm 4 has a structure similar to a single umbrella rib. Several fixed rods A3 are provided at the lower end of the main pipe 2 (generally 2-8, more preferably 3-6, and optimally 4-6, evenly distributed around the main pipe 2). A movable rod shaft 31 is provided on the fixed rod A3 for movably connecting the lower end of the single arm 4. The structure of the single arm 4 is as follows: a support arm 42 has an arm seat 41 near its proximal end (which also serves as a counterweight), and a roller shaft 43 is provided at the distal end of the support arm 42. Rollers 5 are provided on the roller shaft 43. The roller shaft 43 and rollers 5 may also be omitted.
[0020] When in use, extend the lower part of the fire shaft rescue pole to below the body or crotch of the trapped person inside the shaft (or below other items to be retrieved inside the shaft). When the single arm on the rope touches the person or object, the rescue pole changes from closed (see...). Figure 1 ) turned open (see Figure 2 The arm support 41 holds the main pipe 2 in place, thus stabilizing the single arm 4. The trapped person's body is pulled by the support arm 42 and then slowly lifted out of the well. The roller 5 helps to prevent the person from being caught on the well wall when in contact with it.
[0021] To quickly open the single arm 4, an airbag 6 can be installed between the single arm 4 and the main pipe 2. The airbag 6 is shaped like a life ring and is looped around the main pipe 2. At this time, a cable tie 61 (with moderate strength, so that it can break after inflation) is provided around the single arm 4 to tie several single arms 4 around the main pipe 2 to prevent the single arm 4 from opening on its own. The airbag 6 is inflated and opened by the inflation device 7 (the inflation device 7 has a disposable inflation cylinder containing high-pressure air, and its volume can be made very small. The position can be set at a suitable height on the main pipe 2, such as the upper end, depending on the specific situation. It is connected to the airbag 6 through the air pipe 8). The airbag 6 is inflated and opened, breaking the cable tie 61, thereby opening the single arm 4. The opened airbag 6 is shaped like a life ring. To reduce the amount of air used in the airbag 6 and facilitate water drainage, an airbag window 62 can be provided between the airbags 6 of each single arm 4 and adjacent single arms 4. The airbag window 62 is permeable and can be circular, elliptical, rectangular, square, trapezoidal, etc. The advantages of this are: 1. The bulge of the airbag 6 faces each single arm 4, making it easy to open the single arm 4 by inflating the airbag 6; 2. The airbag window 62 reduces the amount of air used in the airbag 6 and allows for rapid drainage during lifting, avoiding increased tensile load; 3. The airbag 6 can act as a protective cushion, reducing the risk of injury to the trapped person.
[0022] The function of the single arm 4 in deploying the airbag can be replaced by an electromagnet. The electromagnet is placed between the single arm 4 and the main pipe 2. The single arm 4 (with an electromagnet / iron object) and the main pipe 2 (with an iron object / electromagnet) are attracted to each other. The electromagnet is connected to the control device through the wires inside the main pipe 2. The control device can be set on the upper part of the main pipe 2 and operated by remote control, or the control device can be placed on the surface of the well. When the rescue pole in the magnetic fire-fighting well is lowered, the single arm 4 is attracted to the main pipe 2, and the single arm 4 does not open (at this time, the cable tie 61 is not needed) so that it can be lowered smoothly. When it reaches the position, the single arm 4 and the main pipe 2 repel each other, thereby opening the single arm 4.
[0023] To accommodate wells of different diameters, the single arm 4 can be configured as a spring-loaded telescopic structure or a tension-fixed structure. The spring-loaded telescopic structure involves dividing the single arm 4 into an outer tube and an inner tube, which are nested together and contain a built-in spring. This allows for automatic adjustment to different well diameters due to the spring's extension and contraction. The tension-fixed structure also involves dividing the single arm 4 into an outer tube and an inner tube, which are nested together. During rescue operations, the outer and inner tubes are stretched and fixed according to the well's diameter (this can be achieved by tightening or loosening screws or using pins), thus meeting the rescue needs of wells with different diameters. Example 2
[0024] like Figure 4 , 5 As shown in Figure 6, Figure 4 The folding arm is in the closed position. Figure 5 With the folding arm extended. Figure 6 for Figure 5 A top-view schematic diagram. The fire-fighting well rescue pole includes a main pipe 2, with a rope connection hole 1 at the upper end of the main pipe 2 for connecting ropes (or thin rods). Several folding arms (generally 2-8, preferably 3-6, evenly distributed around the main pipe 2) are provided at the lower part of the main pipe 2. The folding arms are similar to the structure of a folding umbrella rib, including: an upper arm 10 (upper umbrella rib) and its corresponding lower arm 13 (lower umbrella rib) movably connected by an arm shaft 101. The upper end of the upper arm 10 is movably connected to a sleeve 9 by an upper arm shaft 91. The sleeve 9 is cylindrical, fits over the main pipe 2 and can slide up and down the main pipe 2. The lower end of the lower arm 13 is movably connected to a fixed rod B14 (2-8) by a lower arm shaft 131. A stop block 12 is provided on the main pipe 2 between the sleeve 9 and the fixed rod B14. When the upper arm 10 and the lower arm 13 are opened, the downward-moving sleeve 9 is stopped by the stop block 12. The position of the stop block 12 is: slightly lower than the interarm axis 101, and the length from the lower arm axis 131 to the interarm axis 101 is greater than the distance from the interarm axis 101 to the upper arm axis 91 (after the folding arm is opened, the upper arm 10, the lower arm 13 and the main tube 2 below the stop block form an isosceles right triangle relationship). When the upper arm 10 and the lower arm 13 are opened, the upper arm 10 is in a horizontal state (or basically horizontal state).
[0025] The inter-arm shaft 101 is equipped with rollers 5. The function of rollers 5 is the same as in embodiment 1.
[0026] To facilitate the smooth and rapid opening of the upper arm 10 and lower arm 13, an inflation device or electromechanical device can be provided. The inflation device includes: an airbag 6 between the upper arm 10 and the main pipe 2. The airbag 6 is connected to an inflation device 7 located at the upper end of the main pipe 2 via an air pipe 8. (The inflation device 7 has a disposable air cylinder containing high-pressure gas. The cylinder can be made very small and its position can be set at a suitable height on the main pipe 2, such as the upper end, depending on the specific situation. It is connected to the airbag 6 via the air pipe 8.) The inflation device 7 can inflate the airbag 6. After the airbag 6 is inflated, it expands and thus opens the upper arm 10 to both sides.
[0027] The function of the airbag can be replaced by an electromagnet. The electromagnet is placed between the upper arm 10 and the lower arm 13 and the main pipe 2. When the rescue pole in the fire well is lowered, the upper arm and lower arm (equipped with electromagnets / iron objects) attract the main pipe 2 (equipped with iron objects / electromagnets), and the upper arm and lower arm do not open, so as to facilitate the smooth lowering. When it reaches the position, the upper arm and lower arm repel the main pipe 2, thereby opening the upper arm and lower arm. Example 3
[0028] like Figure 7 The diagram shows the folded arm in its closed state; the open state is not shown in the diagram. The fire-fighting well rescue pole includes a main pipe 2, with a rope connection hole 1 at the upper end for connecting a rope (or thin rod). A folding arm is located at the lower part of the main pipe 2, and is the same as in Embodiment 2, so it will not be described again. Unlike Embodiment 2, the sleeve 19 in Embodiment 3 is longer than the sleeve 9 in Embodiment 2. A handrail 15 is also provided at the upper end of the sleeve 19. A push-button switch 16 is provided inside the handrail 15 (the push-button switch 16 and its corresponding structure can be one on one side or two on each side). The push-button switch 16 is connected to a connecting rod 17, and the other end of the connecting rod 17 is connected to a telescopic pin 18, which is inserted into the insertion hole of the main pipe 2. When the person trapped inside the well reaches out and grabs the handrail 15, it will naturally trigger the push switch 16, which will pull the telescopic pin 18 out of the socket. In this way, under the action of gravity, the casing 19 slides down the main pipe 2, and finally the upper arm 10 and the lower arm 13 are folded and opened outward.
[0029] The interarm shaft 101 can be equipped with, for example, Figure 4 The roller 5 shown is used in the same way as in Example 1.
[0030] In this invention: The structure of the inflation device 7 can be adopted as follows: Figure 8 or Figure 9 One type, such as Figure 8The diagram shows a remote-controlled inflation device, which can be mounted on the top of a rescue pole or on a well. The device includes: an antenna 20 connecting a remote control module and a battery pack 21. The remote control module and battery pack 21 are connected via a wire 22 and an electric telescopic device 24, which is housed within a casing A23. The electric telescopic device 24 allows the push rod A25 to extend or retract. When the push rod A25 extends, it acts on a striking pin seat 27. The front end of the striking pin seat 27 is connected to a striking pin 32, and a spring A28 is located at the front end of the striking pin seat 27. The striking pin 32 acts on a gas cylinder 29, puncturing the seal and releasing gas. The gas enters the air pipe 8 through the air hole 26, thus inflating the airbag 6 (see [reference]). Figure 1 , Figure 4 The firing pin seat 27 is provided with a sealing gasket 30 and a sealing ring 31 for sealing.
[0031] Once the rescue pole in the fire shaft is in place, a command is given to the remote-controlled inflation device. The electric telescopic device 24 extends the push rod A25, which acts on the striker seat 27. The striker 32 punctures the seal of the gas cylinder 29, causing the gas cylinder 29 to release air. The air enters the air pipe 8 through the air hole 26, thereby inflating the airbag 6 (see...). Figure 1 , Figure 4 ).
[0032] like Figure 9 The diagram shows an automatic inflation device: The automatic inflation device should be installed at the top of the rescue pole. The device includes: a spring B36 at the rear end of the top rod B39; a firing pin seat 27 at the front end of the top rod B39; a firing pin 32 connected to the front end of the firing pin seat 27; and a spring A28 at the front end of the firing pin seat 27. The firing pin 32 can act on the gas cylinder 29, puncturing the seal of the gas cylinder 29, causing the gas cylinder 29 to release air. The air enters the air tube 8 through the air port 26, thus filling the airbag 6 (see...). Figure 1 , Figure 4 Inflation. The firing pin seat 27 is equipped with a sealing gasket 30 and a sealing ring 31 for sealing. The rear end of the housing B37 is provided with a water inlet 38, and the front end of the housing B37 is provided with a drain hole 34 on one side. The front end of the push rod B39 is provided with a water-soluble sheet 35 for blocking the push rod B39.
[0033] When this automatic inflation device is placed in water, water enters the outer casing B37 through the water inlet 38, dissolving the water-soluble sheet 35. This, under the action of the spring B36, pushes the push rod B39 forward. The push rod B39 acts on the striker seat 27, and the striker 32 punctures the gas cylinder 29, causing it to release gas. The gas then enters the air tube 8 through the air port 26 (see...). Figure 4 ), thus providing airbag 6 (see Figure 4 Inflation. When in use, the rescue pole in the fire well is lowered to a certain water level, and the water submerges the automatic inflation device to trigger the automatic inflation device to open the gravity-driven umbrella-shaped metal component.
[0034] The force-bearing platform (single arm 4, upper arm 10) of the aforementioned fire-fighting well rescue pole is placed under the buttocks or feet of the trapped person. The trapped person's legs are pressed tightly against the rescue pole, and their hands are tightly gripping the rescue pole. Under the action of the single arm 4 or upper arm 10, the rescue pole is raised to rescue the trapped person. Example 3 is suitable for trapped persons who are conscious and capable of movement. Examples 1 and 2 are suitable for trapped persons who are conscious and capable of movement, as well as trapped persons who are unconscious. It can lift the trapped person to the surface of the water.
[0035] The fire-fighting well rescue pole can also have an underwater probe installed at the lower end of the main pipe 2. The underwater probe is connected to an electronic screen or wireless module on the surface of the well via an electric wire inside the main pipe 2. This allows for observation of the underwater situation via a mobile phone connected to the electronic screen or wireless module, thus facilitating rescue and salvage.
[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.
Claims
1. A fire-fighting well rescue pole, comprising a main pipe, the upper end of which is provided with a rope connection hole, characterized in that: The lower part of the main pipe is equipped with several single-arm or folding arm devices. The lower end of the single-arm or folding arm is movably connected to the main pipe through a shaft. The single-arm or folding arm can be opened radially around the shaft with the main pipe as the center.
2. The fire-fighting well rescue pole according to claim 1, characterized in that: Between the single-arm or folding arm device and the main tube, there is an opening and closing device that causes the single-arm or folding arm to open; the opening and closing device includes one of an airbag device, a mechanical device, or an electromagnetic device.
3. The fire-fighting well rescue pole according to claim 2, characterized in that: The airbag device is in the shape of a life ring, with or without a window; when it has a window, the window is located on the airbag between adjacent single-arm or folding-arm devices.
4. The fire-fighting well rescue pole according to claim 1 or 2, characterized in that: The single arm has several fixed rods A at the lower end of the main tube, and an arm shaft is provided on the fixed rods A for connecting the lower end of the single arm. The proximal end of the single arm is provided with an arm seat; the distal end of the single arm may or may not be provided with rollers.
5. The fire-fighting well rescue pole according to claim 4, characterized in that: The single arm is configured as a spring telescopic structure or a tension-fixed structure; the spring telescopic structure is that the single arm is divided into two parts, an outer tube and an inner tube, which are connected together and have a built-in spring; the tension-fixed structure is that the single arm is divided into two parts, an outer tube and an inner tube, which are connected together and are fixed after being stretched.
6. The fire-fighting well rescue pole according to claim 1 or 2, characterized in that: The folding arm device includes: an upper arm and a lower arm that are movably connected by an inter-arm shaft; the upper end of the upper arm is movably connected to a sleeve by an upper arm shaft; the sleeve is fitted over the main tube and can slide up and down on the main tube; and the lower end of the lower arm is movably connected to a fixed rod B by a lower arm shaft; rollers may or may not be provided on the inter-arm shaft.
7. The fire-fighting well rescue pole according to claim 6, characterized in that: The upper end of the sleeve is provided with two handrails, and at least one handrail is provided with a push switch. The push switch is connected to a connecting rod, and the other end of the connecting rod is connected to a telescopic pin. The telescopic pin is inserted into the insertion hole of the main tube.
8. The fire-fighting well rescue pole according to claim 2, characterized in that: The airbag device is connected to an inflation device via an air tube. The inflation device can be either a remote-controlled inflation device or an automatic inflation device. The remote-controlled inflation device includes: an antenna connecting a remote control module and a battery pack; the remote control module and battery pack are connected to an electric telescopic device via wires; the electric telescopic device extends a top rod A, which acts on a firing pin seat; the front end of the firing pin seat is connected to a firing pin; the front end of the firing pin seat is equipped with a spring A; the firing pin acts on the gas cylinder to release air, and the air enters the air tube through the air hole, thereby inflating the airbag. The automatic inflation device includes: a spring B at the rear end of a top rod; a firing pin seat at the front end of top rod B; a firing pin connected to the front end of the firing pin seat; the front end of the firing pin seat is equipped with a spring A; the firing pin acts on the gas cylinder to release air, and the air enters the air tube through the air hole, thereby inflating the airbag. A water inlet is located at the rear end of the outer shell B, and a drain hole is located on one side of the front end of the outer shell B. A water-soluble sheet is located at the front end of the top rod B to block the top rod B.
9. The fire-fighting well rescue pole according to claim 1 or 2, characterized in that: An underwater probe is installed at the lower end of the main pipe. The underwater probe is connected to an electronic screen or wireless module on the surface of the well via an electric wire inside the main pipe, which is used to observe the underwater situation by connecting a mobile phone through the electronic screen or wireless module.
10. The fire-fighting well rescue pole according to claim 2, characterized in that: When the electromagnetic device is used to lower the rescue rod in the magnetic fire well, the electromagnetic switch is operated, and the electromagnet causes the single arm or folding arm to attract with the main pipe, so that the single arm or folding arm does not open; when it reaches the position, the electromagnetic switch is operated, and the single arm or folding arm repels the main pipe, thereby opening the single arm or folding arm.