Fire rescue shoes with protective function
By introducing sensors and micro-air tank systems into fire rescue shoes, effective buffering protection for heavy objects is achieved, and the problem of foot injury in firefighters during rescue tasks is solved, providing a solution that takes into account safety and comfort.
Patent Information
- Application Number
- CN202510704330.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2045-05-29
AI Technical Summary
When firefighters perform rescue missions, heavy objects fall from high altitude and hit their feet will cause serious damage, and existing fire rescue shoes lack effective cushioning protection.
A sensor and a miniature gas storage tank are installed on the sole connection ring of the fire rescue shoe. The sensor detects dangers and controls the solenoid valve to output compressed gas to the expansion layer. The expansion layer is buffered and protected when heavy objects fall. The sole is equipped with an airway and a barrier unit to control the flow of gas.
Effectively reduces the damage caused by heavy objects to hit the feet, provides safe movement protection, and controls gas release in non-hazardous situations to improve comfort.
Smart Images
Figure CN120226829B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field related to rescue shoes, and in particular relates to firefighting rescue shoes with protective functions. Background Art
[0002] The main duties of firefighters include extinguishing fires, rescuing disasters, inspecting fire safety facilities and promoting fire safety knowledge. They also participate in rescue work, such as road rescue, ambulance rescue, public services, water company safety water source inspections, internal duties, etc. When performing their tasks, firefighters often wear fire rescue shoes. Fire rescue shoes can adapt to high temperatures and complex road conditions, and provide corresponding protection for the personal safety of firefighters.
[0003] After searching, the patent publication number is CN220369570U, which discloses a Chinese patent for emergency rescue shoes. The patent has a puncture-proof effect by arranging a Kevlar insole in the sole. According to the road conditions, you can choose to use sharp nails or truncated cone-shaped protrusions. On normal roads, the truncated cone-shaped protrusions can be screwed on single-head bolts. When facing inclined slopes, you can replace them with sharp nails to increase grip. However, when the above device is actually used, there are some shortcomings. When firefighters are performing rescue missions, the environment is sometimes very harsh, and there may be heavy objects falling from high altitudes. If the heavy objects hit the firefighters' feet and cause injuries to the firefighters' feet, it will have a huge impact on the firefighters' movement. If the heavy objects can be cushioned when they fall, the damage caused to the firefighters will be greatly reduced. Based on this, a fire rescue shoe with protective function that can solve the above problems is now proposed. Summary of the Invention
[0004] The present invention provides a firefighting and rescue shoe with a protective function, which is intended to solve the problem that when firefighters are carrying out rescue missions, the environment is sometimes very harsh and heavy objects may fall from high altitudes. If the heavy objects hit the firefighters' feet and cause injuries to the firefighters' feet, it will have a huge impact on the firefighters' movements. If the heavy objects can be cushioned when they fall, the damage caused to the firefighters will be greatly reduced.
[0005] The present invention is achieved as follows: a fire rescue shoe with a protective function includes a shoe body main body, a shoe shaft main body is provided on the shoe body main body, the lower end of the shoe body main body is fixedly connected to the sole main body, the side of the sole main body is fixedly connected to the connecting ring, the connecting ring and the sole main body are cooperated to provide a buffering component for buffering pressure, the buffering component includes a sensor arranged on the side of the connecting ring, a plurality of jacks distributed in a ring array are provided on the connecting ring, an expansion unit is provided in the jack, the expansion unit includes an expansion layer, a miniature gas tank for driving the expansion of the expansion layer is provided on the sole main body, the output end of the miniature gas tank is connected to an electromagnetic valve, and the electromagnetic valve is connected to the sensor through a control module.
[0006] Preferably, a zipper portion is provided on the side of the shoe body.
[0007] Preferably, a placement groove is provided on the sole body, a plurality of buckles are provided in the placement groove, and the plurality of buckles are used to clamp and limit the micro gas storage tank, and a blocking door is provided on the sole body.
[0008] Preferably, the expansion layer is a two-layer structure, wherein the inner layer is a composite rubber layer and the outer layer is a fiber reinforced layer.
[0009] Preferably, the expansion layer is connected to the connecting box through a storage unit, and the lower end of the connecting box is fixedly connected to a first plug rod inserted into the socket, a protruding air inlet is provided on the side of the first plug rod, a first air duct cooperating with the protruding air inlet is opened in the socket, a blocking unit is provided on the first air duct, and a pressure relief valve for releasing the gas in the expansion layer is provided on the connecting box.
[0010] Preferably, a second air channel is provided in the sole body, the second air channel is connected to the output end of the micro air tank, a third air channel is provided in the sole body, the third air channel is connected to the first air channel, and a fourth air channel connected to the expansion layer is provided in the first insertion rod.
[0011] Preferably, the blocking unit includes a first snap-fit groove opened on the side of the first air duct, a blocking plate is inserted in the first snap-fit groove, a movable protrusion that cooperates with the protruding air inlet is fixedly connected to the side of the blocking plate, a symmetrically arranged first connecting plate is fixedly connected to the side of the blocking plate, a second snap-fit groove that cooperates with the first connecting plate is opened on the side of the first snap-fit groove, a first guide rod is fixedly connected in the second snap-fit groove, the first guide rod passes through the first connecting plate, the first connecting plate is connected to the inner wall of the second snap-fit groove by a first spring for providing elastic force, and the first spring is sleeved on the outside of the first guide rod.
[0012] Preferably, the storage unit includes a movable groove opened on the connecting box body, a movable push rod is inserted in the movable groove, the upper end of the movable push rod is fixedly connected to a second connecting plate, the second connecting plate is connected to a third connecting plate through a limiting unit, and the third connecting plate is connected to the expansion layer.
[0013] Preferably, the limit unit includes a plurality of second guide rods fixedly connected to the inner wall of the connecting box, a fourth connecting plate is sleeved on the outer side of the plurality of second guide rods, and the ends of the plurality of second guide rods are fixedly connected to the limit plate, the fourth connecting plate is connected to the inner wall of the connecting box through a second spring for providing elastic force, the second spring is sleeved on the outer side of the second guide rod, the side surface of the fourth connecting plate is fixedly connected to the limit rod, the limit rod is provided with a curved surface, the second connecting plate is provided with a slot that cooperates with the limit rod, the side surface of the third connecting plate is fixedly connected to the second rod, the second rod is inserted in the slot, the side surface of the second rod is fixedly connected to the symmetrically arranged guide protrusions, and the slot is provided with a guide groove that cooperates with the guide protrusion.
[0014] Preferably, a limiting rod for limiting the expansion layer is fixedly connected to the connection box.
[0015] Compared with the prior art, the embodiments of the present application have the following beneficial effects:
[0016] 1. By setting up the barrier unit, if the task is not dangerous, the first plug can be omitted from the socket. In this case, the first air channel will not release compressed gas to the outside due to the blocking effect of the barrier plate, and the sensor will be turned off, which will not trigger the micro gas tank to output compressed gas. Alternatively, firefighters can choose to insert the first plug into the socket at an appropriate location based on the position of the feet they want to protect. The protruding air inlet is stuck in the first air channel, and the first, second, third and fourth air channels are connected, allowing compressed air to be input into the expansion layer to protect the firefighter's feet.
[0017] 2. Through the setting of the storage unit, the firefighter pushes the movable push rod downward to drive the expansion layer to move in the direction of the movable groove. After the second connecting plate moves to the position of the limit rod, the limit rod is inserted into the slot under the elastic force of the second spring to limit the position of the second connecting plate. The expansion layer is also collected and waits for the next expansion. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a structural diagram of a firefighting and rescue shoe with protective function provided by the present invention;
[0019] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;
[0020] Figure 3 This is a schematic cross-sectional structural diagram of a sole body of a firefighting and rescue shoe with protective function provided by the present invention;
[0021] Figure 4 This is a schematic cross-sectional view of the barrier unit in a fire rescue shoe with protective function provided by the present invention. Figure 1 ;
[0022] Figure 5 This is a structural diagram of the connection between the connecting box and the first plug rod in a fire rescue shoe with protective function provided by the present invention;
[0023] Figure 6 This is a schematic cross-sectional view of the barrier unit in a fire rescue shoe with protective function provided by the present invention. Figure 2 ;
[0024] Figure 7 This is a schematic cross-sectional view of a connecting box in a firefighting and rescue shoe with protective function provided by the present invention;
[0025] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure at B in the middle;
[0026] Figure 9 This is a structural diagram of a firefighting and rescue shoe with protective function provided by the present invention, in which the expansion layer is connected to the box when it is expanded;
[0027] Figure 10 yes Figure 9 Schematic diagram of the enlarged structure at point C in the middle.
[0028] Figure numerals: 1. Shoe body; 2. Shoe shaft; 3. Sole; 4. Connecting ring; 5. Sensor; 6. Jack; 7. Micro gas tank; 8. Solenoid valve; 9. Zipper; 10. Placement slot; 11. Buckle; 12. Barrier door; 13. Composite rubber layer; 14. Fiber reinforcement layer; 15. First insertion rod; 16. Protruding air inlet; 17. First air duct; 18. Pressure relief valve; 19. Second air duct; 20. Third air duct; 21. First snap-fit groove; 22. Barrier plate; 23. Moving protrusion ; 24. First connecting plate; 25. Second clamping groove; 26. First guide rod; 27. First spring; 28. Moving groove; 29. Moving push rod; 30. Second connecting plate; 31. Third connecting plate; 32. Second guide rod; 33. Fourth connecting plate; 34. Limiting plate; 35. Second spring; 36. Limiting rod; 37. Curved surface; 38. Slot; 39. Second rod; 40. Guide protrusion; 41. Guide groove; 42. Limiting rod; 43. Connecting box; 44. Expansion layer; 45. Fourth air duct. DETAILED DESCRIPTION
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0030] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0031] The embodiment of the present invention provides a fire rescue shoe with protective function, such as Figures 1-10 As shown, it includes a shoe body main body 1, a shoe shaft main body 2 is provided on the shoe body main body 1, the lower end of the shoe body main body 1 is fixedly connected to the sole main body 3, the side of the sole main body 3 is fixedly connected to the connecting ring 4, the connecting ring 4 and the sole main body 3 are cooperated to provide a buffering component for buffering pressure, the buffering component includes a sensor 5 arranged on the side of the connecting ring 4, a plurality of jacks 6 distributed in a ring array are provided on the connecting ring 4, an expansion unit is provided in the jack 6, the expansion unit includes an expansion layer 44, a miniature gas tank 7 for driving the expansion layer 44 to expand is provided on the sole main body 3, the output end of the miniature gas tank 7 is connected to the solenoid valve 8, and the solenoid valve 8 is connected to the sensor 5 through a control module.
[0032] A zipper portion 9 is provided on the side of the shoe body 1 .
[0033] The sole body 3 is provided with a placement groove 10 , and a plurality of buckles 11 are provided in the placement groove 10 . The plurality of buckles 11 are used to clamp and limit the micro gas storage tank 7 . The sole body 3 is provided with a blocking door 12 .
[0034] The expansion layer 44 is a two-layer structure, wherein the inner layer is a composite rubber layer 13 and the outer layer is a fiber reinforcement layer 14 .
[0035] When the above device is actually used, when firefighters are wearing the fire rescue shoes to perform rescue missions, if a heavy object falls and is about to hit the firefighters' feet, the sensor 5 will detect the danger, send a signal through the control module, open the solenoid valve 8, and the micro gas tank 7 will output compressed gas into the expansion layer 44, driving the expansion layer 44 to expand. After the expansion layer 44 expands, it can cushion the heavy object when it falls, thereby reducing the damage to the firefighters' feet.
[0036] The expansion layer 44 is connected to the connecting box 43 through a storage unit. The lower end of the connecting box 43 is fixedly connected to a first insertion rod 15 inserted into the socket 6. A protruding air inlet 16 is provided on the side of the first insertion rod 15. A first air duct 17 cooperating with the protruding air inlet 16 is opened in the socket 6. A blocking unit is provided on the first air duct 17. A pressure relief valve 18 for releasing the gas in the expansion layer 44 is provided on the connecting box 43.
[0037] A second air channel 19 is provided in the sole body 3, and the second air channel 19 is connected to the output end of the micro air tank 7. A third air channel 20 is provided in the sole body 3, and the third air channel 20 is connected to the first air channel 17. A fourth air channel 45 connected to the expansion layer 44 is provided in the first insertion rod 15.
[0038] Combine Figure 3 、 Figure 4 and Figure 6 The blocking unit includes a first snap-fitting groove 21 opened on the side of the first air duct 17, a blocking plate 22 is inserted in the first snap-fitting groove 21, and the side of the blocking plate 22 is fixedly connected with a movable protrusion 23 that cooperates with the protruding air inlet 16, and the side of the blocking plate 22 is fixedly connected with a symmetrically arranged first connecting plate 24, and the side of the first snap-fitting groove 21 is opened with a second snap-fitting groove 25 that cooperates with the first connecting plate 24, and a first guide rod 26 is fixedly connected in the second snap-fitting groove 25, and the first guide rod 26 passes through the first connecting plate 24, and the first connecting plate 24 is connected to the inner wall of the second snap-fitting groove 25 by a first spring 27 for providing elastic force, and the first spring 27 is sleeved on the outside of the first guide rod 26.
[0039] When the firefighter wears the fire rescue shoe, if the task to be performed is not dangerous, the first insertion rod 15 can be omitted from the socket 6. At this time, the first air duct 17 will not release compressed gas to the outside under the blocking effect of the blocking plate 22, and the sensor 5 will be turned off, which will not trigger the micro gas tank 7 to output compressed gas. Alternatively, the firefighter can choose to insert the first insertion rod 15 in the socket 6 at a suitable position according to the position of the foot to be protected. When inserting the first insertion rod 15, the moving protrusion 23 provided on the blocking plate 22 is driven by the protruding air inlet 16 to move downward, driving the blocking plate 22 to move downward, and the first connecting plate 24 moves downward in the direction of the first guide rod 26 until the protruding air inlet 16 is stuck in the first air duct 17. The first air duct 17, the second air duct 19, the third air duct 20 and the fourth air duct 45 are connected, and compressed air can be input into the expansion layer 44 to protect the firefighter's feet.
[0040] Combine Figure 7 、 Figure 8 、 Figure 9 and Figure 10 After the firefighter presses the pressure relief valve 18, the compressed gas in the expansion layer 44 will be discharged. In order to store the expansion layer 44, a storage unit is provided. The storage unit includes a movable groove 28 opened on the connecting box body 43. A movable push rod 29 is inserted into the movable groove 28. The upper end of the movable push rod 29 is fixedly connected to the second connecting plate 30. The second connecting plate 30 is connected to the third connecting plate 31 through a limiting unit. The third connecting plate 31 is connected to the expansion layer 44.
[0041] The limiting unit includes a plurality of second guide rods 32 fixedly connected to the inner wall of the connecting box body 43, and a fourth connecting plate 33 is sleeved on the outer side of the plurality of second guide rods 32. The ends of the plurality of second guide rods 32 are fixedly connected to the limiting plate 34. The fourth connecting plate 33 is connected to the inner wall of the connecting box body 43 by a second spring 35 for providing elastic force. The second spring 35 is sleeved on the outer side of the second guide rod 32. The side of the fourth connecting plate 33 is fixedly connected to the limiting plug rod 36. The limiting plug rod 36 is provided with a curved surface 37. The second connecting plate 30 is provided with a slot 38 that cooperates with the limiting plug rod 36. The side of the third connecting plate 31 is fixedly connected to a second plug rod 39. The second plug rod 39 is inserted in the slot 38. The side of the second plug rod 39 is fixedly connected to a symmetrically arranged guide protrusion 40. The slot 38 is provided with a guide groove 41 that cooperates with the guide protrusion 40.
[0042] A limiting rod 42 for limiting the position of the expansion layer 44 is fixedly connected to the connection box 43 .
[0043] When the above-mentioned storage unit is actually used, the firefighter pushes the movable push rod 29 downward, driving the expansion layer 44 to move in the direction of the movable groove 28. After the second connecting plate 30 moves to the position of the limiting rod 36, the limiting rod 36 is inserted into the slot 38 under the elastic force of the second spring 35 to limit the position of the second connecting plate 30, and the expansion layer 44 is also collected and waits for the next expansion.
[0044] When the expansion layer 44 expands, it drives the third connecting plate 31 to move toward the second connecting plate 30, and drives the second insertion rod 39 to push the limiting insertion rod 36 in the slot 38. As the expansion layer 44 continues to move, the second connecting plate 30 moves in the movable groove 28 until it moves to the uppermost end of the movable groove 28, ensuring that the expansion layer 44 is in an expanded state.
[0045] To sum up, the working principle of the present invention is as follows: when firefighters are wearing the fire rescue shoes to perform rescue tasks, if a heavy object falls and is about to hit the firefighter's feet, the sensor 5 will detect the danger, send a signal through the control module, open the solenoid valve 8, and the micro gas tank 7 will output compressed gas into the expansion layer 44, driving the expansion layer 44 to expand. After the expansion layer 44 expands, it can cushion the heavy object when it falls, reducing the damage to the firefighter's feet; when the firefighters are wearing the fire rescue shoes, if the task they are performing is not dangerous, they can not insert the first insertion rod 15 into the socket 6. At this time, the first air duct 17 will not release compressed gas to the outside under the blocking effect of the blocking plate 22, and turning off the sensor 5 will not trigger the micro gas tank 7 to output compressed gas, or the firefighters can choose a suitable position according to the position of the foot they want to protect. The first plug rod 15 is inserted into the socket 6. When the first plug rod 15 is inserted, the movable protrusion 23 provided on the blocking plate 22 is driven by the protruding air inlet 16 to move downward, driving the blocking plate 22 to move downward, and the first connecting plate 24 moves downward in the direction of the first guide rod 26 until the protruding air inlet 16 is stuck in the first air channel 17. The first air channel 17, the second air channel 19, the third air channel 20 and the fourth air channel 45 are connected, so that compressed air can be input into the expansion layer 44 to protect the firefighter's feet; the firefighter pushes the movable push rod 29 downward, driving the expansion layer 44 to move in the direction of the movable groove 28. After the second connecting plate 30 moves to the position of the limiting plug rod 36, the limiting plug rod 36 is inserted into the slot 38 under the elastic force of the second spring 35 to limit the position of the second connecting plate 30, and the expansion layer 44 is also collected and waits for the next expansion.
[0046] When the expansion layer 44 expands, it drives the third connecting plate 31 to move toward the second connecting plate 30, and drives the second insertion rod 39 to push the limiting insertion rod 36 in the slot 38. As the expansion layer 44 continues to move, the second connecting plate 30 moves in the movable groove 28 until it moves to the uppermost end of the movable groove 28, ensuring that the expansion layer 44 is in an expanded state.
[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A fire rescue shoe with protective function, comprising a shoe body (1), characterized in that: The shoe body (1) is provided with a shoe shaft body (2), the lower end of the shoe body (1) is fixedly connected to a sole body (3), the side of the sole body (3) is fixedly connected to a connecting ring (4), the connecting ring (4) and the sole body (3) are cooperatively provided with a buffering assembly for buffering pressure, the buffering assembly comprising a sensor (5) arranged on the side of the connecting ring (4), a plurality of jacks (6) distributed in a ring array are provided on the connecting ring (4), an expansion unit is provided in the jack (6), the expansion unit comprises an expansion layer (44), a micro gas storage tank (7) for driving the expansion layer (44) to expand is provided on the sole body (3), an output end of the micro gas storage tank (7) is connected to a solenoid valve (8), and the solenoid valve (8) is connected to the sensor (5) via a control module; The expansion layer (44) is connected to the connection box (43) through a storage unit. The lower end of the connection box (43) is fixedly connected to a first insertion rod (15) inserted into the insertion hole (6). A protruding air inlet (16) is provided on the side of the first insertion rod (15). A first air duct (17) cooperating with the protruding air inlet (16) is opened in the insertion hole (6). A blocking unit is provided on the first air duct (17). A pressure relief valve (18) for releasing the gas in the expansion layer (44) is provided on the connection box (43).
2. The firefighting and rescue shoes with protective function according to claim 1, characterized in that: A zipper portion (9) is provided on the side of the shoe body (1).
3. The firefighting and rescue shoes with protective function as claimed in claim 2, characterized in that: A placement groove (10) is provided on the sole body (3), a plurality of buckles (11) are provided in the placement groove (10), and the plurality of buckles (11) are used to clamp and limit the micro gas storage tank (7). A blocking door (12) is provided on the sole body (3).
4. The firefighting and rescue shoes with protective function as claimed in claim 3, characterized in that: The expansion layer (44) has a two-layer structure, wherein the inner layer is a composite rubber layer (13) and the outer layer is a fiber reinforcement layer (14).
5. The firefighting and rescue shoes with protective function as claimed in claim 1, characterized in that: A second air channel (19) is provided in the sole body (3), and the second air channel (19) is connected to the output end of the micro air storage tank (7). A third air channel (20) is provided in the sole body (3), and the third air channel (20) is connected to the first air channel (17). A fourth air channel (45) is provided in the first insertion rod (15) and is connected to the expansion layer (44).
6. The firefighting and rescue shoes with protective function as claimed in claim 5, characterized in that: The blocking unit comprises a first snap-fitting groove (21) provided on the side of the first air channel (17), a blocking plate (22) being inserted in the first snap-fitting groove (21), a movable protrusion (23) being fixedly connected to the side of the blocking plate (22) and cooperating with the protruding air inlet (16), a symmetrically arranged first connecting plate (24) being fixedly connected to the side of the blocking plate (22), a second snap-fitting groove (25) being provided on the side of the first snap-fitting groove (21) and cooperating with the first connecting plate (24), a first guide rod (26) being fixedly connected in the second snap-fitting groove (25), the first guide rod (26) passing through the first connecting plate (24), the first connecting plate (24) being connected to the inner wall of the second snap-fitting groove (25) via a first spring (27) for providing elastic force, and the first spring (27) being sleeved on the outer side of the first guide rod (26).
7. The firefighting and rescue shoes with protective function according to claim 1, characterized in that: The storage unit includes a movable groove (28) opened on the connecting box body (43), a movable push rod (29) is inserted into the movable groove (28), the upper end of the movable push rod (29) is fixedly connected to a second connecting plate (30), the second connecting plate (30) is connected to a third connecting plate (31) through a limiting unit, and the third connecting plate (31) is connected to the expansion layer (44).
8. The firefighting and rescue shoes with protective function as claimed in claim 7, characterized in that: The limiting unit includes a plurality of second guide rods (32) fixedly connected to the inner wall of the connecting box (43), a fourth connecting plate (33) is sleeved on the outer side of the plurality of second guide rods (32), and the ends of the plurality of second guide rods (32) are fixedly connected to the limiting plate (34). The fourth connecting plate (33) is connected to the inner wall of the connecting box (43) through a second spring (35) for providing elastic force. The second spring (35) is sleeved on the outer side of the second guide rod (32). The side of the fourth connecting plate (33) is fixedly connected to the limiting plate (34). The third connecting plate (31) is fixedly connected with a limit rod (36), the limit rod (36) is provided with a curved surface (37), the second connecting plate (30) is provided with a slot (38) that cooperates with the limit rod (36), the side of the third connecting plate (31) is fixedly connected with a second rod (39), the second rod (39) is inserted in the slot (38), the side of the second rod (39) is fixedly connected with a symmetrically arranged guide protrusion (40), and the slot (38) is provided with a guide groove (41) that cooperates with the guide protrusion (40).
9. The firefighting and rescue shoes with protective function as claimed in claim 8, characterized in that: A limiting rod (42) for limiting the expansion layer (44) is fixedly connected to the connection box (43).
Citation Information
Patent Citations
Emergency rescue shoes
CN220369570U
Sneaker capable of preventing ankle sprain
CN215819985U