A narrow space tunnel collapse rescue device

Abstract

The application provides a narrow-space tunnel collapse rescue device and relates to the field of rescue equipment, which comprises a placing bottom plate, four supporting wheels connected below the placing bottom plate, a dragging handle fixedly connected to the front end of the placing bottom plate, a hollow guide pipe installed at the four ends of the top of the placing bottom plate, hydraulic cylinders installed at the left and right ends of the top of the placing bottom plate, a movable supporting frame connected to the top of the hollow guide pipe and connected to the hydraulic cylinders. When the device moves and encounters a tunnel wall or other rubble, the inflatable rubber wheel can extrude the buffer B, the buffer B is compressed to be elastic, the impact force of the inflatable rubber wheel can be unloaded, the impact force borne by the placing bed is reduced, and the protection effect on the injured personnel is achieved. The problems that the existing tunnel collapse rescue device can cause strong vibration when it accidentally encounters a wall in the tunnel, and the body of the injured personnel is damaged are solved.

Description

Technical Field

[0001] This invention relates to the field of rescue equipment technology, and in particular to a rescue device for tunnel collapses in confined spaces. Background Technology

[0002] Tunnel rescue equipment is the weapon of rescuers. The quality of the rescue equipment usually has a decisive impact on the success or failure of the rescue operation. Scientific and reasonable allocation of rescue equipment can make the rescue operation twice as effective with half the effort. Studying foreign urban search and rescue teams, they have gradually developed from professional rescues such as geological disasters and fire fighting. The tunnel rescue equipment we often talk about refers to some tools or facilities that must be used in tunnel rescue operations after a tunnel accident, such as cranes and medical equipment. These are indispensable in the tunnel rescue process, which can minimize casualties and property losses.

[0003] The tunnel collapse rescue devices currently in use have insufficient protection for injured personnel during application. They can only deal with falling rocks from above. When falling rocks are impacted and bounce off the side and fly towards the device, they can easily hit the injured personnel. Furthermore, when the device accidentally hits the tunnel wall, the device itself will generate a strong vibration, causing injury to the injured personnel. Summary of the Invention

[0004] In view of this, the present invention provides a tunnel collapse rescue device in a confined space to solve the problems that the current tunnel collapse rescue devices are insufficient in protecting injured personnel during application. They can only deal with falling rocks from above. When falling rocks are impacted and bounce off the side and fly towards the device, they are likely to hit the injured personnel. Furthermore, when the device accidentally hits the wall inside the tunnel, the device itself will generate a strong vibration, causing injury to the injured personnel.

[0005] This invention provides a rescue device for tunnel collapses in confined spaces, specifically comprising: a base plate; four support wheels connected to the bottom of the base plate, and a drag handle fixedly connected to the front end of the base plate; hollow guide tubes installed at the four ends of the top of the base plate, hydraulic cylinders installed at the left and right ends of the top of the base plate, and a movable support frame connected to the top of the hollow guide tubes, the movable support frame being connected to the hydraulic cylinders; a placement bed fixedly installed at the center of the top of the base plate; three buffers A arranged in a row on the top of the movable support frame, with an arc-shaped protective cover connected to the top of the buffers A, the arc-shaped protective cover being located on top of the placement bed; side protective strips connected to the outside of the movable support frame; four buffers B installed at the left and right ends of the top of the base plate, with one end of each buffer B connected to an inflatable rubber wheel; and an anti-fall locking device connected to the top of the hydraulic cylinders.

[0006] Furthermore, four hollow conduits are fixedly connected to the top four ends of the placement base plate, and the bottom ends of the movable support frame are slidably connected to the hollow conduits. The top of the piston rod of the hydraulic cylinder is connected to the middle part of the movable support frame.

[0007] Furthermore, the buffer A consists of a lower connecting seat, an upper connecting rod, and a spring A. The bottom of the lower connecting seat is fixedly connected to the movable support frame, the top of the upper connecting rod is fixedly connected to the arc-shaped protective cover, and the bottom of the upper connecting rod is slidably connected to the inside of the lower connecting seat. A limit hole A is opened on the outer surface of the lower connecting seat, and a limit block A is fixedly connected to the outer surface of the upper connecting rod. The limit block A is slidably connected to the limit hole A. The spring A is sleeved on the outside of the lower connecting seat and the upper connecting rod, with one end of the spring A in contact with the lower connecting seat and the other end of the spring A in contact with the upper connecting rod.

[0008] Furthermore, the side protective strip is rotatably connected to the movable support frame, and the lower end of the side protective strip is longer than the upper end of the side protective strip.

[0009] Furthermore, the buffer B consists of an inner connecting seat, an outer connecting rod, and a spring B. The inner connecting seat is fixedly connected to the base plate at a horizontal 45-degree angle. The outer connecting rod is rotatably connected to the inflatable rubber wheel. One end of the outer connecting rod is slidably connected to the inside of the inner connecting seat. A limit hole B is opened on the outer surface of the inner connecting seat. A limit block B is fixedly connected to the outer surface of the outer connecting rod. The limit block B is slidably connected to the limit hole B. The spring B is sleeved on the outside of the inner connecting seat and the outer connecting rod. One end of the spring B is in contact with the inner connecting seat, and the other end of the spring B is in contact with the outer connecting rod.

[0010] Furthermore, the anti-fall locking device consists of a housing, a movable inner part, a steel ball, a spring C, and an unlocking outer ring. The bottom of the housing is fixedly connected to the top of the cylinder of the hydraulic cylinder. The movable inner part is located inside the housing. The outer surface of the movable inner part is inclined, and the inner surface of the housing is inclined. The piston rod of the hydraulic cylinder passes through the housing and the movable inner part.

[0011] Furthermore, the movable inner component has a circular movable through hole on its exterior, with a steel ball located inside the movable through hole. One end of the steel ball is in contact with the inclined surface inside the housing, and the other end of the steel ball is in contact with the outer surface of the piston rod of the hydraulic cylinder. The spring C is located inside the housing, with the top of the spring C in contact with the housing and the bottom of the spring C in contact with the top of the movable inner component.

[0012] Furthermore, the unlocking outer ring is slidably connected to the outside of the housing, and a sliding hole is provided in a circumferential shape on the outer surface of the housing. A force-bearing rod is provided in a circumferential shape on the inner side of the unlocking outer ring, and the force-bearing rod is slidably connected to the sliding hole. A connecting groove is provided in a circumferential shape on the outer surface of the movable inner part, and the force-bearing rod is connected in the connecting groove.

[0013] The tunnel collapse rescue device provided by this invention has the following beneficial effects:

[0014] 1. This invention uses a hydraulic cylinder to adjust the height of the arc-shaped protective cover. After the device is moved to a suitable position, the injured person is lifted onto the placement bed. Then, the device can be moved by dragging the handle. If gravel falls from above during the movement, the arc-shaped protective cover can effectively block it, thus effectively protecting the injured person on the placement bed. When larger pieces of gravel fall above the arc-shaped protective cover, the arc-shaped protective cover moves downwards to dissipate the force due to the impact. Buffer A buffers the force on the arc-shaped protective cover, thus providing a cushioning and protective effect, preventing the arc-shaped protective cover from being dented, and ensuring the subsequent use effect of the arc-shaped protective cover.

[0015] 2. When the debris flies from the side, it impacts the side protective strip, causing the strip to rotate and release the force. Then, under the influence of gravity, it rotates back to its original position, preventing the debris from flying further. The side protective strip provides lateral protection for injured personnel. During the movement of the device, when the inflatable rubber wheel encounters the tunnel wall or other debris, it compresses the buffer B. The buffer B compresses and becomes elastic, which can dissipate the impact force of the inflatable rubber wheel, reducing the impact force on the bed and thus protecting injured personnel.

[0016] 3. In this invention, spring C drives the movable inner part and the unlocking outer ring to move downwards. The movable inner part drives the steel ball to move inwards, so that the steel ball contacts the outer surface of the piston rod of the hydraulic cylinder, achieving a one-way locking effect on the piston rod. The piston rod can move upwards without restriction. The movable inner part, steel ball and spring C work together to prevent the piston rod from moving downwards, which can effectively prevent oil leakage in the pipeline connected to the hydraulic cylinder, thus avoiding the arc-shaped protective cover from falling down. When it is necessary to move the arc-shaped protective cover downwards for adjustment, the unlocking outer ring drives the movable inner part to move outwards, and the steel ball can move outwards without restriction. The piston rod of the hydraulic cylinder can then drive the arc-shaped protective cover downwards. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the overall top-axis side structure of the narrow space tunnel collapse rescue device according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall bottom axis side structure of the narrow space tunnel collapse rescue device according to an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the placement base plate structure of the tunnel collapse rescue device in a confined space according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the connection structure between the hydraulic cylinder and the anti-fall locking device of the narrow space tunnel collapse rescue device according to an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of the connection structure between the movable support frame and the side protection strip of the tunnel collapse rescue device in a confined space according to an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the split structure of the buffer A in the narrow space tunnel collapse rescue device according to an embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the split structure of the buffer B in the narrow space tunnel collapse rescue device according to an embodiment of the present invention.

[0027] Figure 8 This is a cross-sectional structural diagram of the anti-fall locking device of the tunnel collapse rescue device in a confined space according to an embodiment of the present invention.

[0028] Figure 9 This is a schematic diagram of the disassembled structure of the anti-fall locking device of the narrow space tunnel collapse rescue device according to an embodiment of the present invention.

[0029] List of reference numerals

[0030] 1. Base plate; 2. Support wheels; 3. Drag handle; 4. Hollow guide tube; 5. Hydraulic cylinder; 6. Bed placement; 7. Movable support frame; 8. Buffer A; 81. Lower connecting seat; 811. Limiting hole A; 82. Upper connecting rod; 821. Limiting block A; 83. Spring A; 9. Arc-shaped protective cover; 10. Side protective strip; 11. Buffer B; 111. Inner connecting seat; 1111. Limiting hole B; 112. Outer connecting rod; 1121. Limiting block B; 113. Spring B; 12. Pneumatic rubber wheel; 13. Anti-fall locking device; 131. Housing; 1311. Sliding hole; 132. Movable internal parts; 1321. Movable through hole; 1322. Connecting groove; 133. Steel ball; 134. Spring C; 135. Unlocking outer ring; 1351. Force rod. Detailed Implementation

[0031] Please refer to Figures 1 to 9 As shown:

[0032] Example 1: This invention provides a tunnel collapse rescue device in a confined space, comprising a base plate 1; four support wheels 2 are connected to the bottom of the base plate 1, and a drag handle 3 is fixedly connected to the front end of the base plate 1; hollow guide tubes 4 are installed at the four ends of the top of the base plate 1, and hydraulic cylinders 5 are installed at the left and right ends of the top of the base plate 1; a movable support frame 7 is connected to the top of the hollow guide tubes 4, and the movable support frame 7 is connected to the hydraulic cylinders 5; a placement bed 6 is fixedly installed at the center of the top of the base plate 1; three buffers A8 are arranged in a row on the top of the movable support frame 7, and an arc-shaped protective cover 9 is connected to the top of the buffers A8. The arc-shaped protective cover 9 is located on top of the placement bed 6; the movable support frame 7 is externally connected to side protective strips 10; four buffers B11 are installed on the left and right ends of the top of the placement base plate 1, and one end of the buffer B11 is connected to an inflatable rubber wheel 12; the top of the hydraulic cylinder 5 is connected to an anti-fall lock 13; four hollow tubes 4 are fixedly connected to the four ends of the top of the placement base plate 1, and the bottom ends of the movable support frame 7 are slidably connected to the hollow tubes 4; the top of the piston rod of the hydraulic cylinder 5 is connected to the middle part of the movable support frame 7, and the height of the arc-shaped protective cover 9 is adjusted by the hydraulic cylinder 5. After the device is moved to a suitable position, the impact... The injured person is lifted onto the placement bed 6, and the device can be moved by dragging the handle 3. If any debris falls from above during the movement, it can be effectively blocked by the arc-shaped protective cover 9, effectively protecting the injured person on the placement bed 6. The buffer A8 consists of a lower connecting seat 81, an upper connecting rod 82, and a spring A83. The bottom of the lower connecting seat 81 is fixedly connected to the movable support frame 7, the top of the upper connecting rod 82 is fixedly connected to the arc-shaped protective cover 9, and the bottom of the upper connecting rod 82 is slidably connected to the inside of the lower connecting seat 81. A limit hole A811 is opened on the outer surface of the lower connecting seat 81, and the outer surface of the upper connecting rod 82... A fixed connection limit block A821 is fixedly connected to a limit hole A811. A spring A83 is sleeved on the outside of the lower connecting seat 81 and the upper connecting rod 82. One end of the spring A83 is in contact with the lower connecting seat 81, and the other end of the spring A83 is in contact with the upper connecting rod 82. When a large piece of gravel falls above the arc-shaped protective cover 9, the arc-shaped protective cover 9 moves downward to release the force due to the impact. The buffer A8 buffers the force on the arc-shaped protective cover 9, thus providing a buffering and protective effect to the arc-shaped protective cover 9 and preventing the arc-shaped protective cover 9 from being dented, ensuring the subsequent use effect of the arc-shaped protective cover 9.

[0033] The side protective strip 10 is rotatably connected to the movable support frame 7, and the lower end of the side protective strip 10 is longer than the upper end of the side protective strip 10. With the above technical solution, when the gravel flies from the side, the gravel hits the side protective strip 10, the side protective strip 10 rotates to dissipate the force, and then rotates back to its original position under the influence of gravity, preventing the gravel from flying further. The side protective strip 10 provides side protection for the injured person.

[0034] The buffer B11 consists of an inner connecting seat 111, an outer connecting rod 112, and a spring B113. The inner connecting seat 111 is fixedly connected to the base plate 1 at a horizontal 45-degree angle. The outer connecting rod 112 is rotatably connected to the inflatable rubber wheel 12. One end of the outer connecting rod 112 is slidably connected to the inside of the inner connecting seat 111. A limit hole B1111 is provided on the outer surface of the inner connecting seat 111. A limit block B1121 is fixedly connected to the outer surface of the outer connecting rod 112. The limit block B1121 is slidably connected to the limit hole B1111. The spring B113 is sleeved... Outside the inner connecting seat 111 and the outer connecting rod 112, one end of the spring B113 contacts the inner connecting seat 111, and the other end of the spring B113 contacts the outer connecting rod 112. With the above technical solution, when the inflatable rubber wheel 12 hits the tunnel wall or other gravel during the movement of the device, the inflatable rubber wheel 12 will squeeze the buffer B11. The buffer B11 is compressed and generates elasticity, which can unload the impact force of the inflatable rubber wheel 12, reduce the impact force on the bed 6, and thus play a protective role for the injured personnel.

[0035] Example 2: This invention provides a tunnel collapse rescue device in a confined space, which also includes a fall arrestor 13 consisting of a housing 131, a movable inner part 132, a steel ball 133, a spring C134, and an unlocking outer ring 135. The bottom of the housing 131 is fixedly connected to the top of the cylinder of the hydraulic cylinder 5. The movable inner part 132 is located inside the housing 131. The outer surface of the movable inner part 132 is inclined, and the inner surface of the housing 131 is also inclined. The piston rod of the hydraulic cylinder 5 passes through the housing 131 and the movable inner part 132. 32 has a circumferential movable through hole 1321 on its exterior. A steel ball 133 is located inside the movable through hole 1321. One end of the steel ball 133 contacts the inclined surface inside the housing 131, and the other end of the steel ball 133 contacts the outer surface of the piston rod of the hydraulic cylinder 5. A spring C134 is located inside the housing 131. The top of the spring C134 contacts the housing 131, and the bottom of the spring C134 contacts the top of the movable inner part 132. An unlocking outer ring 135 is slidably connected to the outside of the housing 131. A circumferential opening is formed on the outer surface of the housing 131. A sliding hole 1311 is provided, and a force-bearing rod 1351 is provided in a circumferential shape on the inner side of the unlocking outer ring 135. The force-bearing rod 1351 is slidably connected to the sliding hole 1311. A connecting groove 1322 is provided in a circumferential shape on the outer surface of the movable inner part 132, and the force-bearing rod 135 is connected in the connecting groove 1322. Using the above technical solution, the spring C134 drives the movable inner part 132 and the unlocking outer ring 135 to move downward. The movable inner part 132 drives the steel ball 133 to move inward, so that the steel ball 133 contacts the outer surface of the piston rod of the hydraulic cylinder 5, thereby achieving the desired effect. The piston rod has a one-way locking effect, allowing the piston rod to move upwards without restriction. The piston rod is prevented from moving downwards by the cooperation of the movable inner part 132, the steel ball 133, and the spring C134. This effectively prevents oil leakage from the pipeline connected to the hydraulic cylinder 5, which could cause the arc-shaped protective cover 9 to fall. When it is necessary to move the arc-shaped protective cover 9 downwards for adjustment, the movable inner part 132 is moved outwards by unlocking the outer ring 135, and the steel ball 133 moves outwards without restriction. The piston rod of the hydraulic cylinder 5 can then drive the arc-shaped protective cover 9 downwards.

[0036] The specific usage and function of this embodiment: In this invention, the spring C134 drives the movable inner part 132 and the unlocking outer ring 135 to move downwards. The movable inner part 132 drives the steel ball 133 to move inwards, so that the steel ball 133 contacts the outer surface of the piston rod of the hydraulic cylinder 5, achieving a one-way locking effect on the piston rod, and the piston rod can move upwards without restriction. The height of the arc-shaped protective cover 9 is adjusted by the hydraulic cylinder 5. After the height of the arc-shaped protective cover 9 is adjusted appropriately, the movable inner part 132, the steel ball 133 and the spring C134 cooperate to prevent the piston rod from moving downwards, which can effectively prevent oil leakage in the pipeline connected to the hydraulic cylinder 5, causing the arc-shaped protective cover 9 to fall. Next, after moving the device to a suitable position, the injured person is lifted onto the placement bed 6. Then, the device can be moved by dragging the handle 3. If gravel falls from above during the movement, the arc-shaped protective cover 9 can effectively block it. Effective protection is provided for injured personnel placed on bed 6. When larger pieces of gravel fall above the arc-shaped protective cover 9, the arc-shaped protective cover 9 moves downward to dissipate the force due to the impact. The buffer A8 cushions the force on the arc-shaped protective cover 9, providing a buffering and protective effect and preventing the arc-shaped protective cover 9 from being dented. When gravel flies from the side, it hits the side protective strip 10, which rotates to dissipate the force and then rotates back to its original position under the influence of gravity, preventing the gravel from flying further. The side protective strip 10 provides lateral protection for injured personnel. During the movement of the device, when the inflatable rubber wheel 12 encounters the tunnel wall or other gravel, the inflatable rubber wheel 12 will squeeze the buffer B11. The buffer B11 is compressed and generates elasticity, which can dissipate the impact force of the inflatable rubber wheel 12, reducing the impact force on bed 6 and thus protecting injured personnel.

Claims

1. A rescue device for tunnel collapses in confined spaces, comprising: A base plate (1) is provided; four support wheels (2) are connected to the bottom of the base plate (1), and a drag handle (3) is fixedly connected to the front end of the base plate (1); the base plate (1) is characterized in that hollow conduits (4) are installed at the four ends of the top of the base plate (1), hydraulic cylinders (5) are installed at the left and right ends of the top of the base plate (1), and a movable support frame (7) is connected to the top of the hollow conduits (4), and the movable support frame (7) is connected to the hydraulic cylinder (5); a placement bed (6) is fixedly installed at the center of the top of the base plate (1); three buffers A (8) are arranged on the top of the movable support frame (7), and an arc-shaped protective cover (9) is connected to the top of the buffers A (8), and the arc-shaped protective cover (9) is located on the top of the placement bed (6); a side protective strip (10) is connected to the outside of the movable support frame (7); four buffers B (11) are installed at the left and right ends of the top of the base plate (1), and an inflatable rubber wheel (12) is connected to one end of the buffers B (11); an anti-fall lock (13) is connected to the top of the hydraulic cylinder (5). The buffer B (11) is composed of an inner connecting seat (111), an outer connecting rod (112) and a spring B (113). The inner connecting seat (111) is fixedly connected to the placement base plate (1) at a horizontal 45-degree angle. The outer connecting rod (112) is rotatably connected to the inflatable rubber wheel (12). One end of the outer connecting rod (112) is slidably connected to the inside of the inner connecting seat (111). A limiting hole B (1111) is opened on the outer surface of the inner connecting seat (111). A limiting block B (1121) is fixedly connected to the outer surface of the outer connecting rod (112). The limiting block B (1121) is slidably connected to the limiting hole B (1111). The spring B (113) is sleeved on the outside of the inner connecting seat (111) and the outer connecting rod (112). One end of the spring B (113) is in contact with the inner connecting seat (111), and the other end of the spring B (113) is in contact with the outer connecting rod (112).

2. The tunnel collapse rescue device in a confined space as described in claim 1, characterized in that: The top of the placement base plate (1) is fixedly connected to four hollow conduits (4), and the bottom of the movable support frame (7) is slidably connected to the hollow conduits (4) at opposite ends. The top of the piston rod of the hydraulic cylinder (5) is connected to the middle part of the movable support frame (7).

3. The tunnel collapse rescue device in a confined space as described in claim 1, characterized in that: The buffer A (8) is composed of a lower connecting seat (81), an upper connecting rod (82) and a spring A (83). The bottom of the lower connecting seat (81) is fixedly connected to the movable support frame (7), the top of the upper connecting rod (82) is fixedly connected to the arc-shaped protective cover (9), and the bottom of the upper connecting rod (82) is slidably connected to the inside of the lower connecting seat (81). A limiting hole A (811) is opened on the outer surface of the lower connecting seat (81), and a limiting block A (821) is fixedly connected to the outer surface of the upper connecting rod (82). The limiting block A (821) is slidably connected to the limiting hole A (811). The spring A (83) is sleeved on the outside of the lower connecting seat (81) and the upper connecting rod (82). One end of the spring A (83) is in contact with the lower connecting seat (81), and the other end of the spring A (83) is in contact with the upper connecting rod (82).

4. The tunnel collapse rescue device in a confined space as described in claim 1, characterized in that: The side protective strip (10) is rotatably connected to the movable support frame (7), and the lower end of the side protective strip (10) is longer than the upper end of the side protective strip (10).

5. The tunnel collapse rescue device in a confined space as described in claim 1, characterized in that: The anti-fall locking device (13) consists of a housing (131), a movable inner part (132), a steel ball (133), a spring C (134), and an unlocking outer ring (135). The bottom of the housing (131) is fixedly connected to the top of the cylinder of the hydraulic cylinder (5). The movable inner part (132) is located inside the housing (131). The outer surface of the movable inner part (132) is inclined, and the inner surface of the housing (131) is inclined. The piston rod of the hydraulic cylinder (5) passes through the housing (131) and the movable inner part (132).

6. The tunnel collapse rescue device in a confined space as described in claim 5, characterized in that: The movable inner part (132) is provided with a movable through hole (1321) in a circumferential shape. The steel ball (133) is located in the movable through hole (1321). One end of the steel ball (133) is in contact with the inclined surface inside the shell (131), and the other end of the steel ball (133) is in contact with the outer surface of the piston rod of the hydraulic cylinder (5). The spring C (134) is located inside the shell (131). The top of the spring C (134) is in contact with the shell (131), and the bottom of the spring C (134) is in contact with the top of the movable inner part (132).

7. The tunnel collapse rescue device in a confined space as described in claim 5, characterized in that: The unlocking outer ring (135) is slidably connected to the outside of the housing (131). A sliding hole (1311) is provided in a circumferential shape on the outer surface of the housing (131). A force rod (1351) is provided in a circumferential shape on the inner side of the unlocking outer ring (135). The force rod (1351) is slidably connected to the sliding hole (1311). A connecting groove (1322) is provided in a circumferential shape on the outer surface of the movable inner part (132). The force rod (1351) is connected in the connecting groove (1322).

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