Fire-resistant safety rope take-up and pay-off device for navigation rescue

Abstract

The invention relates to the technical field of strip carrying, in particular to a fireproof safety rope winding and unwinding device for navigation rescue, which comprises a base, motors are fixedly mounted at the edges of the front and rear parts of the upper end of the base through mounting seats, and the output shaft ends of the two motors are fixedly connected with main shafts; the outer walls of the two main shafts are fixedly sleeved with first folding and unfolding frames, limiting mechanisms are arranged between the two main shafts and the base, and a second folding and unfolding frame is rotationally installed between the two first folding and unfolding frames. The fire-resistant safety rope take-up and pay-off device for navigation rescue can selectively release one to three rolls of ropes according to on-site rescue conditions, so that the rescue efficiency is improved. When the motor breaks down or is powered off, the secondary danger that personnel fall into seawater due to high-altitude falling of the personnel can be avoided, emergency braking of the second retractable frame and the two first retractable frames is achieved, then precious time is vacated to restart or repair the motor, and the rescue safety degree is further improved.

Description

Technical Field

[0001] This invention relates to the field of strip material handling technology, specifically to a fire-resistant safety rope deployment and retraction device for maritime rescue. Background Technology

[0002] A fire-resistant safety rope deployment and retrieval device for maritime rescue is, simply put, a specialized mechanical device used in maritime rescue scenarios to control the deployment and retrieval of fire-resistant safety ropes while withstanding high-temperature flames. Its core function is to ensure the orderly use of safety ropes during rescue operations, preventing tangling and jamming, and maintaining its effectiveness in high-temperature and hazardous environments such as fires, thus protecting the safety of rescuers and those being rescued. Existing fire-resistant safety rope deployment and retrieval devices for maritime rescue typically consist of a deployment frame and a drive motor that rotates the frame, with the fire-resistant safety rope wound around the frame.

[0003] However, existing fire-resistant safety rope deployment and retrieval devices for maritime rescue often only allow for the deployment and retrieval of one rope roll. In maritime rescue operations, there are sometimes multiple scenarios requiring different ropes, such as the main rope carrying personnel or the auxiliary rope carrying supplies. A single-roll design can only meet a single need, cannot operate in parallel, reduces rescue efficiency, and cannot cope with the demands of multiple scenarios. Furthermore, if rescuers or those being rescued are being transferred via the rope, a malfunction in the drive motor or a power outage can easily cause the deployment and retrieval frame to become uncontrollable (e.g., the fire-resistant safety rope slips rapidly), directly resulting in a person falling from a height. In maritime rescue scenarios, this also carries the secondary danger of falling into the sea. The lack of an emergency braking mechanism for the deployment and retrieval frame provides valuable time to restart or repair the drive motor. Summary of the Invention

[0004] The purpose of this invention is to provide a fire-resistant safety rope deployment and retrieval device for maritime rescue, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fire-resistant safety rope launching and retracting device for maritime rescue, comprising a base, wherein motors are fixedly mounted on the front and rear edges of the upper end of the base via mounting seats, and main shafts are fixedly connected to the output shafts of the two motors, and launching and retracting frames 1 are fixedly sleeved on the outer walls of the two main shafts, and a limiting mechanism is provided between the two main shafts and the base, and a launching and retracting frame 2 is rotatably mounted between the two launching and retracting frames 1, wherein multiple fixing columns are fixedly connected to the inner wall of the launching and retracting frame 2, and a quick-connect mechanism is provided between the two main shafts and the launching and retracting frame 2; The quick-connect mechanism includes a disc and a hexagonal prism. The disc is slidably sleeved on the outer wall of four fixed posts, and two springs are fixedly connected between the disc and the inner wall of the second take-up and take-down frame. The two springs are slidably sleeved on the outer wall of two of the fixed posts. The hexagonal prism is fixedly connected to the end of the main shaft away from the motor. A hexagonal shell is fixedly connected to the outer wall of the disc corresponding to the hexagonal prism. A pulling mechanism is provided between the disc and the second take-up and take-down frame.

[0006] Preferably, the limiting mechanism includes a frame, which is fixedly connected to the upper end of the base near the motor and located outside the main shaft. The upper end of the frame has symmetrically sliding connecting columns, the lower ends of the two connecting columns are fixedly connected to a trapezoidal block, and the upper ends of the two connecting columns are fixedly connected to a connecting block. The upper middle part of the connecting block is fixedly connected to a pull ring, and a limiting component is provided between the connecting block and the frame. A limiting plate is slidably sleeved on the outer wall of the two connecting columns. The upper end of the limiting plate is fixedly connected to the inner top surface of the frame, and the lower end of the limiting plate is fixedly connected to the upper end of the trapezoidal block. The two springs are slidably sleeved on the outer wall of the two connecting columns respectively.

[0007] Preferably, the limiting mechanism further includes a splicing column, which is fixedly sleeved on the outer wall of the main shaft near the motor, and the outer wall of the splicing column is provided with a plurality of grooves, one of which corresponds to the trapezoidal block.

[0008] Preferably, the limiting component includes a U-shaped seat, the bottom end of which is fixedly connected to the upper end of the frame near the connecting column, and a limiting pin is slidably inserted into the side wall of the U-shaped seat. One end of the limiting pin is slidably inserted into the side wall of the connecting block, and a limiting ring is fixedly sleeved on the outer wall of the limiting pin. The limiting ring is located between the connecting block and the U-shaped seat.

[0009] Preferably, the pulling mechanism includes a connecting rod, which is slidably inserted into the top inner wall of the second take-up and take-down rack, and a connecting rope is fixedly connected to the lower end of the connecting rod. The connecting rope is slidably inserted into the inner wall of the second take-up and take-down rack, and the end of the connecting rope away from the connecting rod is fixedly connected to the upper edge of the outer wall of the disc. A positioning component is provided between the connecting rod and the second take-up and take-down rack, and a pulling block is fixedly connected to the upper end of the connecting rod.

[0010] Preferably, the positioning component includes a square through groove and two grooves. The two grooves are sequentially opened from top to bottom on the outer wall of the connecting rod. The square through groove is opened on the outer wall of the storage rack corresponding to the upper groove. A trapezoidal block is slidably fitted in both the square through groove and the groove. An elastic element is provided between the trapezoidal block and the storage rack.

[0011] Preferably, the elastic element includes a cylindrical shell, which is fixedly connected to the outer wall of the second receiving rack at the corresponding square through slot. A splicing rod is slidably inserted through the inner wall of the center of the cylindrical shell. One end of the splicing rod is fixedly connected to the second trapezoidal block, and the other end of the splicing rod is fixedly connected to the second pull block. A second spring is slidably sleeved on the outer wall of the splicing rod, and the second spring is fixedly connected between the outer wall of the second trapezoidal block and the inner wall of the cylindrical shell.

[0012] Preferably, a concave rod is fixedly connected to the inner side wall of the base, and a bolt is threaded through the middle of the upper end of the concave rod. The upper end of the bolt is slidably inserted into the bottom inner wall of the second rack.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. Through the cooperation of the main shaft, retraction frame one, retraction frame two, fixed columns, quick-connect mechanism, pulling mechanism, positioning components, and elastic elements, this maritime rescue fire-resistant safety rope retraction device can selectively release one to three rolls of rope according to the on-site rescue situation, thereby improving rescue efficiency. Furthermore, retraction frame two and the two retraction frames one can be quickly spliced ​​and quickly separated. The splicing method is mainly through the mutual splicing of a hexagonal shell and a hexagonal prism. The hexagonal shell is fixed to a disc, which is fitted around four fixed columns. The four fixed columns are fixed to retraction frame two. Therefore, when retraction frame two is quickly spliced ​​to the two retraction frames one, and the two retraction frames one are driven to rotate by two motors, they can stably drive retraction frame two to rotate. Moreover, when retraction frame two and the two retraction frames one rotate together, it is also very stable, improving the safety of the rescue.

[0014] 2. By setting up a limiting mechanism and a limit component in cooperation, when the motor fails or power is lost, the second deployment frame and the two first deployment frames cannot rotate counterclockwise immediately, thereby avoiding the secondary danger of people falling into the sea from a height. It has the function of emergency braking for the second deployment frame and the two first deployment frames, thus freeing up valuable time to restart or repair the motor, and further improving the safety of rescue. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the limiting mechanism and a cross-sectional view of the frame of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 These are cross-sectional views of the first and second storage racks of the present invention. Figure 5 For the present invention Figure 4 Enlarged view of the structure at point B in the middle; Figure 6 This is a cross-sectional view of the second type of storage rack of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point C; Figure 8 This is a diagram illustrating the pull block 1, the connecting rope, and the groove 2 of the present invention; Figure 9This is a split view of the second storage rack and the two first storage racks of the present invention.

[0016] The attached diagram lists the components represented by each number as follows: 1. Motor; 2. Retractable rack one; 3. Retractable rack two; 4. Base; 5. Frame; 6. Groove one; 7. Main shaft; 8. Splicing column; 9. Connecting column; 10. Pull ring; 11. Connecting block; 12. Limiting ring; 13. Limiting pin; 14. U-shaped seat; 15. Trapezoidal block one; 16. Spring one; 17. Limiting plate; 18. Square through groove; 19. Fixed column; 20. Pull block one; 21. Disc; 22. Connecting rope; 23. Spring three; 24. Hexagonal shell; 25. Hexagonal prism; 26. Connecting rod; 27. Splicing rod; 28. Trapezoidal block two; 29. ​​Groove two; 30. Spring two; 31. Pull block two; 32. Cylindrical shell; 33. Bolt; 34. Concave rod. Detailed Implementation

[0017] 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.

[0018] This invention provides a technical solution: such as Figure 1 - Figure 9 The fire-resistant safety rope launching and retracting device for maritime rescue shown includes a base 4. Motors 1 are fixedly mounted on the front and rear edges of the upper end of the base 4 via mounting seats. The output shafts of the two motors 1 are fixedly connected to the main shafts 7. Launching and retracting frames 1 2 are fixedly sleeved on the outer walls of the two main shafts 7. A limiting mechanism is provided between the two main shafts 7 and the base 4. Launching and retracting frames 2 3 are rotatably mounted between the two launching and retracting frames 1 2. Multiple fixing columns 19 are fixedly connected to the inner wall of launching and retracting frames 2 3. A quick-connect mechanism is provided between the two main shafts 7 and launching and retracting frames 2 3. The quick-connect mechanism includes a disc 21 and a hexagonal prism 25. The disc 21 is slidably sleeved on the outer wall of four fixed posts 19, and two springs 23 are fixedly connected between the disc 21 and the inner wall of the second take-up and take-down rack 3. The two springs 23 are slidably sleeved on the outer wall of two of the fixed posts 19 respectively. The hexagonal prism 25 is fixedly connected to the end of the main shaft 7 away from the motor 1. A hexagonal shell 24 is fixedly connected to the outer wall of the disc 21 corresponding to the hexagonal prism 25. A pulling mechanism is provided between the disc 21 and the second take-up and take-down rack 3.

[0019] The limiting mechanism includes a frame 5, which is fixedly connected to the upper end of the base 4 near the motor 1 and is located outside the main shaft 7. The upper end of the frame 5 is symmetrically slidably inserted with connecting columns 9. The lower ends of the two connecting columns 9 are fixedly connected with trapezoidal blocks 15, and the upper ends of the two connecting columns 9 are fixedly connected with connecting blocks 11. The upper middle part of the connecting block 11 is fixedly connected with a pull ring 10, and a limiting component is provided between the connecting block 11 and the frame 5. A limiting plate 17 is slidably sleeved on the outer wall of the two connecting columns 9. The upper end of the limiting plate 17 is fixedly connected to the inner top surface of the frame 5, and two springs 16 are fixedly connected between the lower end of the limiting plate 17 and the upper end of the trapezoidal blocks 15. The two springs 16 are slidably sleeved on the outer wall of the two connecting columns 9 respectively.

[0020] The limiting mechanism also includes a splicing column 8, which is fixedly sleeved on the outer wall of the main shaft 7 near the motor 1, and the outer wall of the splicing column 8 has multiple grooves 6, one of which corresponds to the trapezoidal block 15.

[0021] The limiting component includes a U-shaped seat 14. The bottom end of the U-shaped seat 14 is fixedly connected to the upper end of the frame 5 near the connecting column 9. A limiting pin 13 is slidably inserted into the side wall of the U-shaped seat 14. One end of the limiting pin 13 is slidably inserted into the side wall of the connecting block 11. A limiting ring 12 is fixedly sleeved on the outer wall of the limiting pin 13. The limiting ring 12 is located between the connecting block 11 and the U-shaped seat 14.

[0022] The pulling mechanism includes a connecting rod 26, which is slidably inserted into the top inner wall of the second take-up and take-down rack 3. A connecting rope 22 is fixedly connected to the lower end of the connecting rod 26. The connecting rope 22 is slidably inserted into the inner wall of the second take-up and take-down rack 3. The end of the connecting rope 22 away from the connecting rod 26 is fixedly connected to the upper edge of the outer wall of the disc 21. A positioning component is provided between the connecting rod 26 and the second take-up and take-down rack 3. A pull block 20 is fixedly connected to the upper end of the connecting rod 26.

[0023] The positioning component includes a square through groove 18 and two grooves 29. The two grooves 29 are sequentially opened from top to bottom on the outer wall of the connecting rod 26. The square through groove 18 is opened on the outer wall of the take-up and put-down rack 3, corresponding to the groove 29 located above. A trapezoidal block 28 is slidably fitted in both the square through groove 18 and the grooves 29. An elastic element is provided between the trapezoidal block 28 and the take-up and put-down rack 3.

[0024] The elastic element includes a cylindrical shell 32, which is fixedly connected to the outer wall of the second rack 3 at the corresponding square through slot 18. A splicing rod 27 is slidably inserted through the inner wall of the center of the cylindrical shell 32. One end of the splicing rod 27 is fixedly connected to the second trapezoidal block 28, and the other end of the splicing rod 27 is fixedly connected to the second pull block 31. A second spring 30 is slidably sleeved on the outer wall of the splicing rod 27, and the second spring 30 is fixedly connected between the outer wall of the second trapezoidal block 28 and the inner wall of the cylindrical shell 32.

[0025] A concave rod 34 is fixedly connected to the inner wall of the base 4. A bolt 33 is threaded through the middle of the upper end of the concave rod 34. The upper end of the bolt 33 is slidably inserted into the bottom inner wall of the second rack 3.

[0026] Working principle: First, the fire-resistant safety rope can be wound up from the outside of both the second and third reeling frames (3 and 2). In maritime rescue operations, if only one roll of rope needs to be wound up or down, simply start one motor (1), which will drive one reeling frame (2) to rotate, thus releasing one roll of rope. If two rolls of rope need to be wound up or down, then start both motors (1), which will drive each of the two reeling frames (2) to rotate, thus releasing two rolls of rope. If three rolls of rope need to be wound up or down, the specific operation is as follows: First, quickly pull up one of the pull blocks 20. Pull block 20 will cause the connecting rod 26 to slide quickly upward in the inner wall of the take-up and release frame 3. Pull block 20 will also cause the connecting rope 22 to slide quickly upward in the inner wall of the take-up and release frame 3. The connecting rope 22 will cause the disc 21 to move quickly close to the corresponding main shaft 7. The disc 21 will slide quickly outside the four fixed posts 19. The disc 21 will also quickly squeeze the two springs 23 connected to the inner wall of the take-up and release frame 3. The disc 21 will also cause the connected hexagonal shell 24 to move quickly until the hexagonal shell 24 is completely inserted into the hexagonal prism 25 of the corresponding main shaft 7. At this time, one main shaft 7 is quickly connected to the take-up and release frame 3. In the same way, pull up another pull block 20, and the other main shaft 7 will also be quickly connected to the take-up and release frame 3.

[0027] It should be noted that during the upward sliding of the connecting rod 26, the connecting rod 26 will drive the two grooves 29 to move upward. The upper groove 29 will press the inclined surface of the trapezoidal block 28, causing it to move towards the cylindrical shell 32. The trapezoidal block 28 will also slide in the square through slot 18 and press the spring 30 connected to the cylindrical shell 32 until the hexagonal shell 24 mentioned above is completely inserted into the hexagonal prism 25 of the corresponding main shaft 7. At this time, the lower groove 29 will move upward to correspond exactly with the trapezoidal block 28. Then, under the reaction force of the spring 30, the trapezoidal block 28 will automatically insert into the groove 29 that was originally located below. At this time, the upper horizontal surface of the trapezoidal block 28 is in contact with the top surface of the groove 29, which restricts the downward movement of the connecting rod 26, so that the hexagonal shell 24 can remain fixed when it is completely inserted into the hexagonal prism 25 of the corresponding main shaft 7. It is worth mentioning that, conversely, pulling outwards on the second pull block 31 can cause the splicing rod 27 to slide outwards within the cylindrical shell 32, and the splicing rod 27 will cause the trapezoidal block 28 to slide away from the corresponding groove 29 and compress the spring 30. At this time, when the first pull block 20 is released, under the reaction force of the third spring 23, the connecting rod 26, the connecting rope 22, the disc 21, and the hexagonal shell 24 will quickly return to their original positions. After releasing the second pull block 31, under the reaction force of the second spring 30, the trapezoidal block 28 will insert into the groove 29 located above, thereby realizing the separation of the hexagonal shell 24 and the hexagonal prism 25, thus realizing the rapid separation of the main shaft 7 and the second take-up and drop frame 3.

[0028] Next, rotate bolt 33 downwards. Bolt 33 will rotate downwards within the concave rod 34 until the upper end of bolt 33 leaves the second take-up and release frame 3. At this point, the rotation restriction on the second take-up and release frame 3 can be released. At this time, start the two motors 1 simultaneously. The two motors 1 can drive the main shafts 7 connected to them to rotate. The two main shafts 7 will drive the hexagonal prisms 25 connected to them to rotate. The two hexagonal prisms 25 will push the hexagonal shells 24 on their respective exteriors to rotate. The two hexagonal shells 24 will drive the discs 21 connected to them to rotate. The two discs 21 will drive the four fixed posts 19 and the second take-up and release frame 3 to rotate, thereby releasing the three rolls of rope.

[0029] It should be noted that the fire-resistant safety rope deployment and retrieval device of this maritime rescue system can selectively release one to three rolls of rope according to the on-site rescue situation, thereby improving rescue efficiency. Furthermore, the deployment and retrieval frame 23 and the two deployment and retrieval frames 12 can be quickly spliced ​​and quickly separated. The splicing method is mainly through the mutual splicing of hexagonal shell 24 and hexagonal prism 25. The hexagonal shell 24 is fixedly connected to the disc 21, which is fitted over four fixed posts 19. The four fixed posts 19 are fixedly connected to the deployment and retrieval frame 23. When the deployment and retrieval frame 23 is quickly spliced ​​with the two deployment and retrieval frames 12, and the two deployment and retrieval frames 12 are driven to rotate by two motors 1, the deployment and retrieval frame 23 can be driven to rotate very stably. The deployment and retrieval frame 23 and the two deployment and retrieval frames 12 will also be very stable when rotating together, thus improving the safety of the rescue.

[0030] When the second and third take-up racks release the ropes and pull up personnel or items, before doing so, quickly pull the limiting pin 13 on a U-shaped seat 14 away from the connecting column 9 until the limiting ring 12 outside the limiting pin 13 is in contact with it. At this time, the end of the limiting pin 13 will leave the connecting block 11, and the spring 16 will... Figure 3 As shown, it is in a compressed state. Under the action of spring 16, connecting block 11, two connecting columns 9 and trapezoidal block 15 will move down quickly. Trapezoidal block 15 will quickly insert into one of the grooves 6 outside the splicing column 8. The other limiting pin 13 will also move in the same way.

[0031] Since the two racks 2 and 3 rotate counterclockwise when people or items are loaded, the splicing column 8 will also rotate counterclockwise. The multiple grooves 6 on the outside of the splicing column 8 will also rotate accordingly. During this process, the groove 6 that originally cooperated with the trapezoidal block 15 will rotate and squeeze the inclined surface of the trapezoidal block 15. The trapezoidal block 15 will move upward and drive the other parts connected to it to move upward together (the spring 16 will be squeezed again) until the groove 6 rotates away from the trapezoidal block 15. Then the bottom end of the trapezoidal block 15 will slide and cooperate with the outer surface of the splicing column 8 until the second groove 6 on the outside of the splicing column 8 rotates to correspond with the trapezoidal block 15. At this time, the trapezoidal block 15 will cooperate with the second groove 6 again due to the action of the spring 16, and so on.

[0032] It should be noted that, as described above, when motor 1 malfunctions or experiences a power outage, since the release of the rope from the second release frame 3 and the two release frames 2 requires clockwise rotation, the splicing column 8 and its external grooves 6 also need to rotate clockwise. However, when the grooves 6 rotate clockwise, in conjunction with... Figure 3As you can see, the trapezoidal block 15 is restricted by the vertical plane, so the second retrieval frame 3 and the two retrieval frames 2 cannot rotate counterclockwise immediately, thus avoiding the secondary danger of people falling into the sea from a height. It has the ability to brake the second retrieval frame 3 and the two retrieval frames 2, thereby freeing up valuable time to restart or repair the motor 1, further improving the safety of the rescue.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire-resistant safety line take-up device for maritime rescue, comprising a base (4), characterized in that: Motors (1) are fixedly installed at the front and rear edges of the upper end of the base (4) by mounting seats. The output shaft ends of the two motors (1) are fixedly connected to the main shafts (7). The outer walls of the two main shafts (7) are fixedly fitted with a first winding frame (2). A limiting mechanism is provided between the two main shafts (7) and the base (4). A second winding frame (3) is rotatably installed between the two first winding frames (2). Multiple fixing columns (19) are fixedly connected to the inner wall of the second winding frame (3). A quick-connect mechanism is provided between the two main shafts (7) and the second winding frame (3). The quick-connect mechanism includes a disc (21) and a hexagonal prism (25). The disc (21) is slidably sleeved on the outer wall of four fixed posts (19), and two springs (23) are fixedly connected between the disc (21) and the inner wall of the second take-up and release frame (3). The two springs (23) are slidably sleeved on the outer wall of two of the fixed posts (19). The hexagonal prism (25) is fixedly connected to the end of the main shaft (7) away from the motor (1). A hexagonal shell (24) is fixedly connected to the outer wall of the disc (21) at the location corresponding to the hexagonal prism (25). A pulling mechanism is provided between the disc (21) and the second take-up and release frame (3).

2. A fire-resistant safety line deployment device for maritime rescue according to claim 1, characterized in that: The limiting mechanism includes a frame (5), which is fixedly connected to the upper end of the base (4) near the motor (1) and is located outside the main shaft (7). The upper end of the frame (5) is symmetrically slidably interposed with connecting columns (9). The lower ends of the two connecting columns (9) are fixedly connected to a trapezoidal block (15), and the upper ends of the two connecting columns (9) are fixedly connected to a connecting block (11). The upper middle part of the connecting block (11) is fixedly connected to a pull. A limiting component is provided between the ring (10) and the connecting block (11) and the frame (5). A limiting plate (17) is slidably sleeved on the outer wall of the two connecting columns (9). The upper end of the limiting plate (17) is fixedly connected to the inner top surface of the frame (5). Two springs (16) are fixedly connected between the lower end of the limiting plate (17) and the upper end of the trapezoidal block (15). The two springs (16) are slidably sleeved on the outer wall of the two connecting columns (9).

3. The fire-resistant safety rope reeling and releasing device for maritime rescue according to claim 2, characterized in that: The limiting mechanism also includes a splicing column (8), which is fixedly sleeved on the outer wall of the main shaft (7) near the motor (1), and the outer wall of the splicing column (8) is provided with a plurality of grooves (6), one of which corresponds to the trapezoidal block (15).

4. The fire-resistant safety rope reeling and releasing device for maritime rescue according to claim 2, characterized in that: The limiting component includes a U-shaped seat (14), the bottom end of which is fixedly connected to the upper end of the frame (5) near the connecting column (9), and a limiting pin (13) is slidably inserted into the side wall of the U-shaped seat (14). One end of the limiting pin (13) is slidably inserted into the side wall of the connecting block (11), and a limiting ring (12) is fixedly sleeved on the outer wall of the limiting pin (13). The limiting ring (12) is located between the connecting block (11) and the U-shaped seat (14).

5. A fire-resistant safety rope reeling and releasing device for maritime rescue according to claim 1, characterized in that: The pulling mechanism includes a connecting rod (26), which is slidably inserted into the top inner wall of the second take-up and release frame (3). The lower end of the connecting rod (26) is fixedly connected to a connecting rope (22), which is slidably inserted into the inner wall of the second take-up and release frame (3). The end of the connecting rope (22) away from the connecting rod (26) is fixedly connected to the upper edge of the outer wall of the disc (21). A positioning component is provided between the connecting rod (26) and the second take-up and release frame (3). The upper end of the connecting rod (26) is fixedly connected to a first pull block (20).

6. A fire-resistant safety rope reeling and releasing device for maritime rescue according to claim 5, characterized in that: The positioning component includes a square through groove (18) and two grooves (29). The two grooves (29) are sequentially opened from top to bottom on the outer wall of the connecting rod (26). The square through groove (18) is opened on the outer wall of the storage rack (3) corresponding to the groove (29) located above. A trapezoidal block (28) is slidably fitted in both the square through groove (18) and the groove (29). An elastic element is provided between the trapezoidal block (28) and the storage rack (3).

7. A fire-resistant safety rope reeling and releasing device for maritime rescue according to claim 6, characterized in that: The elastic element includes a cylindrical shell (32), which is fixedly connected to the outer wall of the second rack (3) at the corresponding square through slot (18). A splicing rod (27) is slidably inserted into the inner wall of the center of the cylindrical shell (32). One end of the splicing rod (27) is fixedly connected to the second trapezoidal block (28), and the other end of the splicing rod (27) is fixedly connected to the second pull block (31). A second spring (30) is slidably sleeved on the outer wall of the splicing rod (27). The second spring (30) is fixedly connected between the outer wall of the second trapezoidal block (28) and the inner wall of the cylindrical shell (32).

8. A fire-resistant safety rope reeling and releasing device for maritime rescue according to claim 1, characterized in that: A concave rod (34) is fixedly connected to the inner wall of the base (4). A bolt (33) is threaded through the middle of the upper end of the concave rod (34). The upper end of the bolt (33) is slidably inserted into the bottom inner wall of the second rack (3).

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