Anti-falling buffer device for fire rescue shaft operation

Abstract

The invention provides an anti-falling buffering device for fire rescue vertical shaft operation, and relates to the technical field of protective equipment, the anti-falling buffering device comprises a safety belt and further comprises a rotary braking assembly, the rotary braking assembly comprises a connecting ring connected with the chest of the safety belt, the connecting ring is connected with a lock catch, and the lock catch is connected with an upper base plate and a lower base plate. The rolling wheels can flexibly rotate along with climbing or descending of an operator without affecting actions, when falling occurs, the rolling wheels rapidly rotate along with the falling speed and drive the conductive columns and the blades to rotate, the shear thickening fluid in the shell is in a solid state under shear force and is matched with electromagnetic damping of the permanent magnets and the conductive columns to achieve rotation braking buffering, and meanwhile when the operator loosens the hand during falling, the rolling wheels can be driven to rotate. The telescopic spring pulls the two handles to act, the pressing wheel on the upper base plate tightly presses the safety rope on the rolling wheel, the pawl on the lower base plate is meshed with the ratchet wheel, the locking rolling wheel stops rotating, falling is rapidly buffered, and rapid buffering, locking and falling prevention and personnel falling prevention during vertical shaft operation falling are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of protective equipment, in particular to a falling prevention and buffering device for fire rescue shaft operation. BACKGROUND

[0002] In fire rescue shaft operation, the operating personnel often face the risk of falling, and the traditional safety protection measures cannot effectively guarantee their safety, therefore, the falling prevention and buffering device is particularly important, which can quickly provide the function of reducing impact force when the personnel or objects fall accidentally, thereby reducing the risk of injury and improving the efficiency and safety of rescue.

[0003] However, in actual use, there are still the following deficiencies, for example: the existing falling prevention and buffering device for fire rescue shaft operation cannot realize quick buffering and locking to prevent falling during shaft operation, prevent personnel from falling, and guarantee the safety of operating personnel, the primary impact is that the safety of operating personnel is not guaranteed, there is no effective buffering when falling, the impact force directly acts on the human body, which can easily cause fractures, internal injuries or even death, there is no reliable locking function, the personnel will continue to fall and hit the shaft bottom or obstacles, which will aggravate the casualties, secondly, it will affect the efficiency of rescue, the operating personnel will not dare to operate quickly due to safety concerns, and once a falling accident occurs, additional manpower and resources are needed for rescue, which will delay the original rescue task, in addition, it will also increase the safety cost of the industry, frequent falling accidents need to bear high compensation, at the same time, it will restrict the standardization development of shaft rescue technology, and cannot meet the efficient and safe operation requirements of fire rescue.

[0004] Therefore, the present application provides a falling prevention and buffering device for fire rescue shaft operation to solve the above problems. SUMMARY

[0005] The present application aims to solve the problems in the prior art and provides a falling prevention and buffering device for fire rescue shaft operation.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: a falling prevention and buffering device for fire rescue shaft operation, comprising a safety belt, further comprising: A rotating brake assembly, the rotating brake assembly comprises a connecting ring connected to the chest of the safety belt, a lock catch connected to the connecting ring, an upper base plate and a lower base plate connected to the lock catch, a friction wheel and a roller rotatably connected between the upper base plate and the lower base plate, the roller being arranged close to the friction wheel, a housing connected in the upper base plate, and a brake component for realizing rotation braking arranged in the housing; The locking assembly comprises two handles rotatably connected to the upper base plate and the lower base plate respectively, each handle is elastically connected to the upper base plate or the lower base plate through an elastic spring, the locking assembly further comprises a locking component for locking the rotation of the roller, the locking component is correspondingly matched with the handle and the roller.

[0007] Further, the brake component of the rotation brake assembly comprises permanent magnets arranged in an annular array in the shell, a conductive column connected to the roller, the conductive column extends into the shell, and a vane is connected to the conductive column, the shell is filled with a shear thickening fluid, the shear thickening fluid contains magnetic particles, and the vane is immersed in the shear thickening fluid.

[0008] The beneficial effect of the above further scheme is that the annular array of permanent magnets in the shell forms a stable magnetic field, the conductive column cuts the magnetic induction lines to generate electromagnetic damping when the roller rotates, the shell is filled with shear thickening fluid containing magnetic particles, the vane rotates with the conductive column, the speed suddenly increases when falling, the fluid is solidified by shear force and the damping is enhanced under the action of the magnetic field, and double effects are achieved to realize rotation brake buffering and slow down the falling speed.

[0009] Further, the locking component of the locking assembly comprises a pressing wheel connected to the corresponding handle of the upper base plate, a ratchet wheel rotatably connected to the lower base plate and coaxially connected with the roller, and a pawl connected to the corresponding handle of the lower base plate, the pressing wheel is close to the roller and is used for pressing and locking the safety rope on the roller, and the pawl is engaged with the ratchet wheel.

[0010] The beneficial effect of the above further scheme is that when falling occurs, the operator releases the handle, the elastic spring pulls the handle to act, the pressing wheel on the handle of the upper base plate is close to and presses the safety rope on the roller, auxiliary locking is achieved through friction, at the same time, the pawl on the handle of the lower base plate is engaged with the ratchet wheel coaxial with the roller to limit the rotation of the roller, double locking is achieved to prevent the person from falling further.

[0011] Further, the back of the safety belt is provided with a collision buffering assembly, the collision buffering assembly comprises a support frame connected to the back of the safety belt, a rubber pad connected to one side of the support frame close to the safety belt, a first damper connected between the support frames, and a first damping spring sleeved on the first damper and abutting against the support frames at both ends.

[0012] The beneficial effect of the above further scheme is that the support frame on the back of the safety belt is a bearing structure, the rubber pad directly adheres to the back of the human body to play a preliminary buffering protection role, when collision or falling impact occurs, the first damper stretches and contracts to absorb the impact force, the first damping spring sleeved thereon deforms synchronously, and the two ends abut against the support frames to further buffer the force and reduce the damage of the impact to the back of the human body.

[0013] Further, one side in the support frame is rotationally connected with rotating rods in symmetry, the other ends of the two rotating rods are rotationally connected with connecting blocks, the second dampers are connected between the connecting blocks, the second dampers are sleeved with second shock-absorbing springs, and the two ends of the second shock-absorbing springs are respectively abutted against the connecting blocks.

[0014] The beneficial effect of the above further scheme is that when the impact buffering assembly is stressed, the two symmetrical rotating rods in the support frame rotate synchronously, the connecting blocks at the two ends are relatively moved, the second dampers between the connecting blocks are stretched and contracted to dissipate energy, and the second shock-absorbing springs are deformed to buffer, thereby further decomposing the impact force in cooperation with the dampers and improving the overall buffering effect.

[0015] Further, the connecting blocks are connected with guide rods, the other side in the support frame is connected with a limiting seat, and the guide rods are slidably arranged in the limiting seat and gap-connected with the limiting seat.

[0016] The beneficial effect of the above further scheme is that when the connecting blocks are moved by the rotating rods, the guide rods on the connecting blocks slide along the limiting seat in the support frame, the limiting seat plays a limiting and guiding role on the guide rods, and the gap connection between the two ensures that the connecting blocks move stably, avoids part deviation and jamming, and ensures that the second dampers and the second shock-absorbing springs stably play a buffering role.

[0017] Further, the support frame is provided with an inflatable buffering assembly, the inflatable buffering assembly comprises a shell connected in the support frame, a chemical gas generator is fixedly installed in the shell, and an inflatable and expandable air bag is communicated with the chemical gas generator.

[0018] The beneficial effect of the above further scheme is that the chemical gas generator in the shell provides power for air inflation of the air bag, the collision sensor monitors the collision signal received by the device in real time, when falling collision is detected and the impact force reaches a set threshold, the sensor transmits a signal to the control module, the control module triggers the generator to produce gas, so that the air bag is rapidly inflated and expanded to form additional buffering protection.

[0019] Further, a collision sensor is fixedly installed on the side of the shell away from the safety belt, a control module is fixedly arranged on the side of the shell close to the collision sensor, and the collision sensor and the chemical gas generator are electrically connected with the control module.

[0020] The beneficial effect of the above further scheme is that the collision sensor is fixed on the side of the shell away from the safety belt, can quickly capture external collision signals and convert them into electrical signals, and transmit the electrical signals to the adjacent control module, the control module identifies and judges the signals, and when it is confirmed that the trigger condition is reached, immediately sends an instruction to the chemical gas generator to control the chemical gas generator to start producing gas, so as to ensure that the air bag is inflated in time.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are as follows: In this invention, the fall protection buffer device uses a safety belt as the basic load-bearing component. During operation, the safety belt is worn and secured. The chest is linked with the rotating braking component and locking component through a connecting ring, buckle, and the belt. During normal operation, the roller can rotate flexibly as the operator climbs or descends without affecting movement. When a fall occurs, the roller rotates rapidly with the fall speed, driving the conductive column and blades to rotate. The shear-thickening fluid inside the shell is solidified by shear force. Combined with the electromagnetic damping of the permanent magnet and the conductive column, rotational braking buffering is achieved. At the same time, when the operator releases their grip during a fall, the telescopic spring pulls the two handles. The pressure wheel on the upper plate presses the safety rope on the roller, and the pawl on the lower plate engages with the ratchet, locking the roller to stop rotating. This dual action quickly buffers the fall, achieving rapid buffering and locking to prevent falls during vertical shaft operations, preventing personnel from falling and ensuring the safety of the operators.

[0022] In this invention, the collision buffer assembly is installed on the back of the seat belt to mitigate the impact force on the back of the human body during a fall or collision. The support frame provides support for the overall structure, and the rubber pad on the side closest to the seat belt directly fits against the human body, playing a role in initial buffering and reducing local pressure. When subjected to a fall impact, the first damper between the support frames expands and contracts to dissipate energy, and the first damping spring sleeved on it deforms synchronously, with both ends abutting against the support frame to further dissipate force. At the same time, the symmetrical rotating rods inside the support frame rotate accordingly, driving the connecting blocks to move relative to each other. The second damper between the connecting blocks works in conjunction with the second damping spring to buffer and decompose the impact force in a secondary manner. The guide rod on the connecting block slides smoothly along the limiting seat to avoid component displacement and jamming, ensuring smooth linkage of the entire assembly and maximizing the buffering and protection effect.

[0023] In this invention, an inflatable buffer assembly is installed inside the support frame as a supplementary protective structure for collision buffering, enabling rapid inflation and buffering during fall collisions. The outer shell provides a mounting base for the internal components of the assembly. The collision sensor fixed inside the shell is located on the side away from the safety belt, which can quickly capture the impact force signal generated by the fall or collision and convert the signal into an electrical signal and transmit it to the adjacent control module. The control module receives and identifies the signal in real time. When the impact force is detected to reach a set threshold, it immediately sends a start command to the chemical gas generator. The generator quickly generates a large amount of gas, which is filled into the expandable airbag through the connecting pipe. The airbag instantly expands to form a flexible buffer layer to resist the impact force of the collision, further protecting the back of the worker and improving the overall safety of protection. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a fall-prevention buffer device for fire rescue shaft operations according to the present invention; Figure 2This is a schematic diagram of the installation structure of the rotary braking assembly of a fall protection buffer device for fire rescue shaft operations according to the present invention; Figure 3 This is a schematic diagram of the rotating braking assembly of a fall-prevention buffer device for fire rescue shaft operations according to the present invention; Figure 4 This is a structurally disassembled schematic diagram of the rotary braking assembly of a fall-prevention buffer device for fire rescue shaft operations according to the present invention; Figure 5 This is a schematic diagram of the upper base plate structure of a fall-prevention buffer device for fire rescue shaft operations according to the present invention; Figure 6 This is a schematic diagram of the lower base plate structure of a fall-prevention buffer device for fire rescue shaft operations according to the present invention; Figure 7 This is a schematic diagram of the collision buffer assembly structure of a fall protection buffer device for fire rescue shaft operations according to the present invention; Figure 8 This is a schematic diagram of the structure of an inflatable buffer assembly for a fall protection buffer device in fire rescue shaft operations according to the present invention.

[0025] Figure label: 1. Seat belt; 2. Rotary braking assembly; 21. Connecting ring; 22. Lock; 23. Upper base plate; 24. Lower base plate; 25. Friction wheel; 26. Roller; 27. Housing; 28. Permanent magnet; 29. ​​Conductive column; 210. Blade; 211. Shear thickening fluid; 3. Locking assembly; 31. Handle; 32. Telescopic spring; 33. Pressure wheel; 34. Ratchet; 35. Pad; 4. Collision buffer assembly; 41. Support frame; 42. Rubber pad; 43. First damper; 44. First damping spring; 45. Rotating rod; 46. Connecting block; 47. Second damper; 48. Second damping spring; 49. Guide rod; 410. Limiting seat; 5. Inflatable buffer assembly; 51. Housing; 52. Chemical gas generator; 53. Airbag; 54. Collision sensor; 55. Control module. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1-6As shown, this embodiment provides a technical solution: a fall protection buffer device for fire rescue shaft operations, including a safety belt 1, and further including: The rotary braking assembly 2 includes a connecting ring 21 connected to the chest of the seat belt 1, a buckle 22 connected to the connecting ring 21, an upper base plate 23 and a lower base plate 24 connected to the buckle 22, a friction wheel 25 and a roller 26 rotatably connected between the upper base plate 23 and the lower base plate 24, the roller 26 being disposed close to the friction wheel 25, and a housing 27 connected inside the upper base plate 23, the housing 27 containing a braking component for achieving rotary braking; Locking assembly 3 includes two handles 31 rotatably connected to the upper base plate 23 and the lower base plate 24, respectively. Each handle 31 is elastically connected to the upper base plate 23 or the lower base plate 24 via a telescopic spring 32. Locking assembly 3 also includes a locking component for locking the rotation of the roller 26. The locking component cooperates with the handles 31 and the roller 26. This fall protection buffer device uses the safety belt 1 as the basic load-bearing component. During operation, the safety belt 1 is worn and fixed. The chest area is linked with the rotation braking assembly 2 and the locking assembly 3 through the connecting ring 21 and the buckle 22. During normal operation, the roller 26 can rotate flexibly as the operator climbs or descends without affecting the movement. When a fall occurs, the roller 26 rotates rapidly with the falling speed, driving the conductive column 29 and the blade 210 to rotate. The shear-thickening fluid 211 inside the housing 27 is solidified by shear force. Combined with the electromagnetic damping of the permanent magnet 28 and the conductive column 29, rotational braking and buffering are achieved. At the same time, when the worker lets go during the fall, the telescopic spring 32 pulls the two handles 31 to move. The pressure roller 33 on the upper plate 23 presses the safety rope on the roller 26, and the pawl 35 on the lower plate 24 engages with the ratchet 34, locking the roller 26 to stop rotating. This dual action quickly buffers the fall, achieving rapid buffering and locking to prevent falls during vertical shaft operations, preventing personnel from falling and ensuring the safety of workers.

[0028] like Figure 5 As shown, the braking components of the rotary braking assembly 2 include permanent magnets 28 arranged in a ring array within the housing 27, and conductive posts 29 connected to the roller 26. The conductive posts 29 extend into the housing 27, and blades 210 are connected to the conductive posts 29. The housing 27 is filled with a shear-thickening fluid 211 containing magnetic particles. The blades 210 are immersed in the shear-thickening fluid 211. The ring array of permanent magnets 28 within the housing 27 forms a stable magnetic field. When the conductive posts 29 rotate with the roller 26, they cut magnetic field lines, generating electromagnetic damping. The housing 27 is filled with shear-thickening fluid 211 containing magnetic particles. The blades 210 rotate with the conductive posts 29, and the rotational speed increases sharply during the fall. The fluid is solidified by shear force and the damping is enhanced under the action of the magnetic field. This dual action achieves rotary braking buffering and slows down the fall speed. like Figures 1-6As shown, the locking components of the locking assembly 3 include a pressure roller 33 connected to the handle 31 of the upper base plate 23, a ratchet 34 rotatably connected inside the lower base plate 24 and coaxially connected to the roller 26, and a pawl 35 connected to the handle 31 of the lower base plate 24. The pressure roller 33 is close to the roller 26 to press and lock the safety rope on the roller 26. The pawl 35 engages with the ratchet 34. When a fall occurs, the operator releases the handle 31, and the telescopic spring 32 pulls the handle 31 to move. The pressure roller 33 on the handle 31 of the upper base plate 23 approaches and presses the safety rope on the roller 26, assisting in locking through friction. At the same time, the pawl 35 on the handle 31 of the lower base plate 24 engages with the ratchet 34 coaxial with the roller 26 to restrict the rotation of the roller 26, achieving double locking and preventing the person from falling further. like Figure 1 as well as Figure 7 As shown, a collision buffer assembly 4 is provided on the back of the seat belt 1. The collision buffer assembly 4 includes a support frame 41 connected to the back of the seat belt 1. A rubber pad 42 is connected to the side of the support frame 41 near the seat belt 1. A first damper 43 is connected between the support frames 41. A first damping spring 44 is sleeved on the first damper 43. The two ends of the first damping spring 44 abut against the support frame 41 respectively. The support frame 41 on the back of the seat belt 1 is a load-bearing structure. The rubber pad 42 directly fits against the back of the human body, playing a preliminary buffering and protection role. When a collision or fall impact occurs, the first damper 43 extends and retracts to absorb the impact force, and the first damping spring 44 sleeved on it deforms synchronously. The two ends abut against the support frame 41 to further buffer and dissipate the force, reducing the impact injury to the back of the human body. A rotating rod 45 is symmetrically rotated and connected to one side of the support frame 41. The other ends of the two rotating rods 45 are rotatably connected to a connecting block 46. A second damper 47 is connected between the connecting blocks 46. A first damper 44 is sleeved on the second damper 47. Two damping springs 48 are connected to the connecting blocks 46 at both ends. When the collision buffer assembly 4 is subjected to force, the two symmetrical rotating rods 45 in the support frame 41 rotate synchronously, causing the connecting blocks 46 at both ends to move relative to each other. The second damper 47 between the connecting blocks 46 expands and contracts to dissipate energy, and the second damping springs 48 deform accordingly to buffer the impact. The damper further decomposes the impact force and improves the overall buffering effect. A guide rod 49 is connected to the connecting block 46. A limit seat 410 is connected to the other side of the support frame 41. The guide rod 49 slides through the limit seat 410 and is clearance-fitted with the limit seat 410. When the rotating rod 45 drives the connecting block 46 to move, the guide rod 49 on the connecting block 46 slides along the limit seat 410 in the support frame 41. The limit seat 410 limits and guides the guide rod 49. The clearance-fitting between the two ensures that the connecting block 46 moves smoothly, avoids component offset and jamming, and ensures that the second damper 47 and the second damping spring 48 stably play their buffering role. like Figures 7-8As shown, an inflatable buffer assembly 5 is installed inside the support frame 41. The inflatable buffer assembly 5 includes a housing 51 connected inside the support frame 41. A chemical gas generator 52 is fixedly installed inside the housing 51. An inflatable airbag 53 is connected to the chemical gas generator 52. The chemical gas generator 52 inside the housing 51 provides power for inflating the airbag 53. The collision sensor 54 monitors the collision signal received by the device in real time. When a fall collision is detected and the impact force reaches a set threshold, the sensor transmits the signal to the control module 55. The control module 55 triggers the generator to produce gas, causing the airbag 53 to expand rapidly and form an additional buffer. For protection, a collision sensor 54 is fixedly installed inside the outer shell 51 on the side away from the seat belt 1. A control module 55 is fixedly installed inside the outer shell 51 on the side close to the collision sensor 54. The collision sensor 54 and the chemical gas generator 52 are both electrically connected to the control module 55. The collision sensor 54 is fixed on the side of the outer shell 51 away from the seat belt 1 and can quickly capture external collision signals and convert them into electrical signals, which are then transmitted to the adjacent control module 55. The control module 55 identifies and judges the signals. When it is confirmed that the triggering conditions are met, it immediately sends a command to the chemical gas generator 52 to control it to start producing gas, ensuring that the airbag 53 deploys in time.

[0029] Working principle: like Figures 1-8As shown, this device uses the safety belt 1 as the basic load-bearing component. After the worker wears and secures the safety belt 1, their chest is linked to the rotating braking assembly 2 and locking assembly 3 via the connecting ring 21 and buckle 22. The back is equipped with a collision buffer assembly 4 and an inflatable buffer assembly 5. Through braking buffer, mechanical locking, impact absorption, and airbag 53 protection, the device achieves fall protection during vertical shaft operations. During normal operation, the roller 26 of the rotating braking assembly 2 rotates flexibly as the worker climbs or descends without affecting the operation. In the event of a fall, the roller... 26 rotates at high speed synchronously with the sudden increase in falling speed. On one hand, it drives the conductive column 29 and blade 210 to rotate within the housing 27. The magnetic particle-containing shear-thickening fluid 211 filled within the housing 27 is rapidly solidified under strong shear force. Simultaneously, the annular array of permanent magnets 28 forms a stable magnetic field, and the conductive column 29 cuts the magnetic field lines to generate electromagnetic damping. The combined effect of fluid solidification damping and electromagnetic damping achieves rotational braking, initially slowing down the falling speed. At the same time, after the worker releases their grip, the telescopic spring 32 of the locking assembly 3 pulls the two handles 31 to move upwards. The pressure roller 33 of the base plate 23 presses the safety rope on the roller 26, and the friction assists in locking. The pawl 35 of the lower base plate 24 engages with the coaxial ratchet 34 of the roller 26, directly restricting the rotation of the roller 26. The double mechanical locking structure quickly prevents the person from falling. During the impact phase of the fall, the back impact buffer component 4 plays its role first. The rubber pad 42 directly contacts the back of the person for initial cushioning. The first damper 43 and the first shock-absorbing spring 44 between the support frames 41 expand and contract synchronously to absorb most of the impact force. At the same time, the symmetrical rotation within the support frame 41 The moving rod 45 rotates under force, causing the connecting block 46 to move relative to it. The second damper 47 and the second damping spring 48 further extend and retract to dissipate energy. The guide rod 49 slides along the limit seat 410 to ensure that the components run smoothly without jamming, decomposing and dispersing the impact force. When the collision sensor 54 detects that the impact force reaches the set threshold, it will transmit a signal to the control module 55, triggering the chemical gas generator 52 to produce gas, causing the airbag 53 to expand and deploy rapidly, forming the last buffer protection, reducing the injury to the human body from the fall impact, and ensuring the safety of the workers.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A fall arrestor for fire rescue shaft operations, comprising a safety harness (1), characterized in that , also includes: Rotary brake assembly (2), the rotary brake assembly (2) includes the connecting ring (21) connected with the chest of safety belt (1), the connecting ring (21) is connected with the lock catch (22), the lock catch (22) is connected with the upper base plate (23) and the lower base plate (24), the upper base plate (23) and the lower base plate (24) are rotatably connected with the friction wheel (25) and the roller (26), the roller (26) is close to the friction wheel (25) and is arranged, the upper base plate (23) is connected with the shell (27), the shell (27) is provided with brake parts for realizing rotary braking; Locking assembly (3), the locking assembly (3) includes two handles (31) rotatably connected on the upper base plate (23) and the lower base plate (24) respectively, each handle (31) is elastically connected with the upper base plate (23) or the lower base plate (24) through the telescopic spring (32), the locking assembly (3) further includes locking parts for locking the rotation of the roller (26), the locking parts are correspondingly matched with the handle (31) and the roller (26).

2. A fall arrest and buffering device for fire rescue shaft operations according to claim 1, characterized in that The brake parts of the rotary brake assembly (2) include permanent magnets (28) embedded in the shell (27) in a ring array, a conductive column (29) connected to the roller (26), the conductive column (29) extends into the shell (27), and a vane (210) is connected to the conductive column (29), the shell (27) is filled with a shear thickening fluid (211), the shear thickening fluid (211) contains magnetic particles, and the vane (210) is immersed in the shear thickening fluid (211).

3. The anti-falling and buffering device for fire rescue shaft operation according to claim 1, characterized in that The locking parts of the locking assembly (3) include a pressure roller (33) connected to the corresponding handle (31) on the upper base plate (23), a ratchet wheel (34) rotatably connected in the lower base plate (24) and coaxially connected with the roller (26), and a pawl (35) connected to the corresponding handle (31) on the lower base plate (24), the pressure roller (33) is close to the roller (26) for pressing the safety rope on the roller (26), and the pawl (35) is engaged with the ratchet wheel (34).

4. The anti-falling and buffering device for fire rescue shaft operation according to claim 1, characterized in that The back of the safety belt (1) is provided with a collision cushion assembly (4), the collision cushion assembly (4) includes support frames (41) connected to the back of the safety belt (1), rubber pads (42) are connected to the sides of the support frames (41) close to the safety belt (1), first dampers (43) are connected between the support frames (41), first damping springs (44) are sleeved on the first dampers (43), and the two ends of the first damping springs (44) are respectively abutted against the support frames (41).

5. A fall arrest and buffering device for fire rescue shaft work according to claim 4, characterized in that One side of the support frame (41) is rotatably connected with a rotating rod (45), the other ends of the two rotating rods (45) are rotatably connected with connecting blocks (46), a second damper (47) is connected between the connecting blocks (46), a second damping spring (48) is sleeved on the second damper (47), and the two ends of the second damping spring (48) are respectively abutted against the connecting blocks (46).

6. A fall arrest and buffering device for fire rescue shaft work according to claim 5, characterized in that The connecting block (46) is connected with a guide rod (49), the support frame (41) is connected with a limiting seat (410) on the other side, the guide rod (49) is slidably arranged in the limiting seat (410) and is in clearance fit with the limiting seat (410).

7. A fall arrest and buffering device for fire rescue shaft work according to claim 4, characterized in that The support frame (41) is provided with an inflatable buffer assembly (5), the inflatable buffer assembly (5) comprises a shell (51) connected in the support frame (41), the shell (51) is fixedly provided with a chemical gas generator (52), and the chemical gas generator (52) is connected with an inflatable air bag (53).

8. A fall arrest and buffering device for fire rescue shaft work according to claim 7, characterized in that The shell (51) is fixedly provided with a collision sensor (54) away from the safety belt (1) on one side, the shell (51) is fixedly provided with a control module (55) close to the collision sensor (54) on one side, and the collision sensor (54) and the chemical gas generator (52) are electrically connected with the control module (55).

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