A self-locking rescue device

Abstract

The present invention discloses a self-locking rope rescue device, comprising: an integrated housing assembly, a one-way stop rope drum, and a control handle assembly. The one-way stop rope drum is rotatably arranged in the integrated housing assembly. A fixed friction block and an anti-panic stop friction block that cooperate with the one-way stop rope drum are provided in the integrated housing assembly. The control handle assembly is arranged on the integrated housing assembly and can drive the one-way stop rope drum to move relative to the fixed friction block and the anti-panic stop friction block, so that the self-locking rope rescue device switches between three states: an initial self-locking state, a rescue use state, and a panic stop state. The present invention can control the rotation of the one-way stop rope drum through the control handle assembly to adjust the clamping degree of the rope between the one-way stop rope drum and the fixed friction block. The user can conveniently and reliably complete operations such as hovering, descending, braking, etc. for rescue, and can meet the requirements of high efficiency, emergency rescue, and lightweight in rope technology operations.

Description

Technical Field

[0001] The present invention relates to the technical field of firefighting and rescue equipment, and in particular to a self-locking rescue device. Background Art

[0002] Rope rescue technology offers advantages such as portability, economy, minimal destructiveness, wide application range, and high maneuverability. Especially in the technical fields of emergency rescue, escape and self-rescue, and industrial operations, such as those at height, in deep wells, on cliffs, in elevator shafts, and at high angles, the demand for rescue efficiency and functional integration is growing. This is leading to increasing demands for self-locking rope rescue devices with functions such as personal ascent and descent, heavy object lifting, heavy object lowering, traction and dragging, and high load capacity, in order to meet the requirements of high efficiency, emergency rescue, and lightweight rescue processes.

[0003] The functional integration of self-locking rope rescue devices has always been a challenge both domestically and internationally. They combine functions such as personal ascent and descent, heavy object lifting, heavy object lowering, fall protection, traction and dragging, high-load, and panic stops, meeting the demands of high efficiency, emergency rescue, and lightweighting in rope technology operations. To address the challenges of related technologies, no self-locking rope rescue device currently possesses these combined functions. In practice, operators rely on a variety of equipment and devices to achieve these functions and effects.

[0004] Therefore, it is an urgent problem for those skilled in the art to provide a self-locking rope rescue device with the functions of personal ascent, descent, heavy object lifting, heavy object lowering, fall protection, traction and dragging, high load, panic stop, etc. Summary of the Invention

[0005] In view of the problems existing in the existing rescue devices, a new rescue device solution is needed.

[0006] Therefore, the problem to be solved by the present invention is to provide a self-locking rope rescue device to overcome the problems existing in the prior art.

[0007] In order to solve the above problems, the self-locking rope rescue device provided by the present invention includes: an integrated shell assembly, a one-way stop rope drum, and a control handle assembly. The one-way stop rope drum is rotatably arranged in the integrated shell assembly. The integrated shell assembly is provided with a fixed friction block and an anti-panic stop friction block that cooperate with the one-way stop rope drum. The control handle assembly is arranged on the integrated shell assembly and can drive the one-way stop rope drum to move relative to the fixed friction block and the anti-panic stop friction block, so that the self-locking rope rescue device switches between three states: an initial self-locking state, a rescue use state, and a panic stop state.

[0008] Furthermore, the integrated housing assembly is composed of a movable plate and a fixed plate that cooperate with each other, and the movable plate can rotate relative to the fixed plate; the fixed plate is also provided with a limiting structure that limits the rotation stroke of the one-way stop rope drum.

[0009] Furthermore, the movable plate is provided with a first deceleration friction block and / or a second deceleration friction block.

[0010] Furthermore, the movable plate is provided with holes, and the holes are also provided with spring locks.

[0011] Furthermore, the one-way stop rope drum includes a one-way stop bearing, a movable friction mechanism and a pulley. The pulley is locked on the outer ring of the one-way stop bearing and is placed in the movable friction mechanism through the one-way stop bearing. The movable friction mechanism is locked with the inner ring of the one-way stop bearing.

[0012] Furthermore, a concave rope groove is provided in the circumferential direction of the outer side of the rope wheel, and the angle of the inner wall surface of the rope groove is set to 60°-75°.

[0013] Furthermore, patterns are provided on the upper and lower inner walls of the rope groove.

[0014] Furthermore, the movable friction mechanism includes a first sliding fixed plate, a second sliding fixed plate and a movable friction block, the first sliding fixed plate and the second sliding fixed plate are respectively arranged on both sides of the pulley and the one-way stop bearing, and the movable friction block is arranged between the first sliding fixed plate and the second sliding fixed plate.

[0015] Furthermore, a bidirectional rope guide groove is provided on the movable friction block.

[0016] Furthermore, the control handle assembly includes a handle, a return spring and a paddle. The handle can be rotatably set on a fixed plate. The handle is provided with a paddle, and the paddle is cooperated with the one-way stop rope drum. The handle is also provided with a return spring. One end of the return spring is connected to the handle, and the other end is connected to the fixed plate.

[0017] The self-locking rope rescue device provided by the present invention forms an adjustable mechanism that allows the rescue rope to pass through through the cooperation of the one-way stop rope drum and the fixed friction block in the integrated shell assembly; on this basis, a handle assembly that is easy to operate is provided outside the integrated shell assembly, and the control handle assembly is used to control the rotation of the one-way stop rope drum, so as to adjust the clamping degree of the rope between the one-way stop rope drum and the fixed friction block. The user can conveniently and reliably complete hovering, descending, braking and other operations for rescue, which can meet the requirements of high efficiency, emergency rescue and lightweight in rope technology operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 Schematic diagram of the structure of the self-locking rope rescue device in this example;

[0020] Figure 2 This is a schematic diagram of the structure of the self-locking rope rescue device in this example, wherein the movable plate is opened and the rope is installed;

[0021] Figure 3 This is a structural diagram of the self-locking rope rescue device in this example when the handle is reset and in use in state 1;

[0022] Figure 4 For this example Figure 3 Schematic diagram of the internal structure;

[0023] Figure 5 Schematic diagram of the side structure of the self-locking rope rescue device in this example;

[0024] Figure 6 This is a schematic diagram of the rope drum structure of the self-locking rope rescue device in this example;

[0025] Figure 7 This is a schematic diagram of the explosive structure of the self-locking rope rescue device in this example;

[0026] Figure 8 This is a schematic diagram of the installation structure of the handle assembly of the self-locking rope rescue device in this example;

[0027] Figure 9 Schematic diagram of the structure of the handle assembly of the self-locking rope rescue device in this example;

[0028] Figure 10 This is a schematic diagram of the initial position structure of the handle of the self-locking rope rescue device in this example;

[0029] Figure 11 This is a structural diagram of the positions of the paddle and pin of the self-locking rope rescue device in this example;

[0030] Figure 12 This is a schematic diagram of the structure of the self-locking rope rescue device in this example in the use state 2, the descending state;

[0031] Figure 13 Schematic diagram of the structure of the self-locking rope rescue device in the anti-panic state in the use state 3 in this example;

[0032] Figure 14 This is a schematic structural diagram of the self-locking rope rescue device in use state 4 in this example;

[0033] Meaning of the symbols in the figure:

[0034] Integrated shell assembly 100, movable plate 110, rivet 111, hole 112, first deceleration friction block 113, second deceleration friction block 114, spring lock 115, fixed plate 120, first hole 121, second hole 122, limiting slot 123, fixed friction block 124, anti-panic stop friction block 125, one-way stop rope drum 200, shaft 210, pin shaft 201, control handle assembly 300, handle 310, return spring 320, paddle 330, rope 400, connecting unit 500, safety lock 600. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0036] The self-locking rope rescue device provided in this embodiment is constructed by combining an integrated movable plate and an integrated fixed plate. A fixed friction block, an anti-panic stop friction block, and a one-way rope stop disc are integrated within the device. The one-way rope stop disc, the anti-panic stop friction block within the integrated housing assembly, and the fixed friction block form an adjustable mechanism that allows the rescue rope to pass through.

[0037] On this basis, a handle assembly that is easy to operate is provided outside the integrated shell assembly. The handle assembly is used to drive the one-way anti-retraction rope drum to move relative to the fixed friction block and the anti-panic stop friction block, so that the self-locking rope rescue device can switch between the initial self-locking state, the rescue use state and the panic stop state.

[0038] That is, the control handle assembly drives the one-way stop rope drum to move relative to the fixed friction block to adjust the degree of tightening of the rope between the one-way stop rope drum and the fixed friction block, so that the user can conveniently and reliably complete hovering, descending, braking and other operations for rescue; on this basis, the control handle assembly further controls the one-way stop rope drum to rotate relative to the anti-panic stop friction block to adjust the degree of tightening of the rope between the one-way stop rope drum and the anti-panic stop friction block, so that when the operator is in a panic and over-rotates the handle, the rope drum mechanism presses the anti-panic friction block, the rope is tightened, and the operator stops descending.

[0039] Specifically, such as Figure 1 As shown, the self-locking rope rescue device provided in this example is mainly composed of an integrated housing assembly 100, a one-way stop rope drum 200, and a control handle assembly 300 that cooperate with each other.

[0040] See also Figure 2The one-way stop rope drum 200 is rotatably arranged in the integrated housing assembly 100 through the shaft 210, and is mainly used to cooperate with the integrated housing assembly 100 to form a controllable rope 400 movement channel in the integrated housing assembly 100 to control the travel speed of the rope 400.

[0041] The control handle assembly 300 is connected to the housing assembly 100 via a rivet shaft. The control handle assembly 300 can rotate around the rivet shaft and drive the one-way stop rope drum 200 to rotate around the shaft 210, thereby controlling the speed of the rope 400.

[0042] Specifically, such as Figure 2 As shown, the integrated housing assembly 100 serves as the basic component of the self-locking rope rescue device 100 and is mainly used to house other components. It is mainly composed of a movable plate 110 and a fixed plate 120 that cooperate with each other, wherein the movable plate 110 can rotate relative to the fixed plate 120.

[0043] The lower end of the fixing plate 120 is provided with a first hole 121 for connecting the operator's connecting unit 500; the upper end of the fixing plate 120 is provided with a second hole 122 for connecting the safety lock 600 (such as Figure 3 shown).

[0044] like Figure 7 As shown, a limiting slot hole 123 is further provided on the fixing plate 120 to ensure that the one-way anti-retraction rope drum 200 rotates around the axis 210 within the angle limited by the limiting slot hole 123.

[0045] In the specific setting, it can be preferably set to an arc structure to match the movement trajectory of the one-way stop rope drum 200.

[0046] See also Figure 4 A fixed friction block 124 is provided on one side of the upper end of the inner side surface of the fixed plate 120, which is used to cooperate with the one-way stop rope drum 200 to control the speed of the rope 400.

[0047] In coordination with this, an anti-panic stop friction block 125 is also provided on the other side of the upper end of the inner side surface of the fixed plate 120. The anti-panic stop friction block 125 can cooperate with the one-way stop rope drum 200 when the one-way stop rope drum 200 rotates excessively relative to the fixed friction block 124 to provide an emergency stop for the rope 400, so as to control the operator's descent by emergency stopping when the handle is over-tightened.

[0048] The specific composition and structure of the fixed friction block 124 and the anti-panic stop friction block 125 are not limited here, as long as they can achieve the corresponding functions.

[0049] With respect to the above-mentioned fixed plate 120 , the movable plate 110 is sequentially connected to the fixed friction block 124 and the fixed plate 120 through the rivets 111 , and the movable plate 110 can rotate around the rivets 111 .

[0050] As needed, a limiting groove may be provided on the movable plate 110 to limit the rotation angle of the movable plate 110 .

[0051] Furthermore, a hole 112 is provided at the lower end of the movable plate 110 , which coincides with the first hole 121 on the fixed plate 120 in a closed state, and is used for connecting the operator connection unit 500 .

[0052] Furthermore, a spring lock 115 is provided in cooperation with the movable plate hole 112 , which facilitates the connection unit 500 to enter the movable plate hole 112 when opening and closing the movable plate 110 and restricts the movable plate 110 from being opened when in use.

[0053] Based on the above structural settings, Figure 3 、 Figure 4 As shown, in order to prevent the operator from needing to carry the rescued person with him to descend from a height during the rescue, and to prevent them from descending too quickly, a first deceleration friction block 113 is provided at the upper end of the movable plate 110, and a second deceleration friction block 114 is provided in the middle of the movable plate 110. When the first deceleration friction block 113 and the second deceleration friction block 114 are specifically provided, it is preferred that the edges are smooth and without sharp corners.

[0054] like Figure 6 、 Figure 7 As shown, the one-way stop rope drum 200 is mainly used to cooperate with the fixed friction block 124 to control the travel speed of the rope 400, and cooperate with the anti-panic stop friction block 125 to stop the rope 400 urgently, so as to control the descent of the emergency stop operator when the handle is over-tightened.

[0055] In this embodiment, the one-way stop rope drum 200 is mainly composed of a one-way stop bearing 220, a movable friction mechanism 230, and a rope pulley 240. The rope pulley 240 is mounted in the movable friction mechanism 230 via the one-way stop bearing 220, and the rope pulley 240 rotates unidirectionally relative to the movable friction mechanism 230. The rope pulley is locked to the outer ring of the one-way stop bearing, while the movable friction mechanism is locked to the inner ring of the one-way stop bearing.

[0056] The rope wheel 240 is a shuttle track for the rope in the descender. In a specific configuration, it is configured as a circular ring structure, and a concave rope groove is provided along the outer circumference of the rope wheel 240, and the angle between the upper and lower inner walls thereof is transitioned through a circular arc.

[0057] For example, the angle of the inner wall of the rope groove is preferably set to 68°, and the angles of the upper and lower inner walls are transitioned through arcs, with the transition radius in the middle being R2.

[0058] During the specific setting, some patterns can be set on the upper and lower inner walls of the rope groove according to actual needs. Such a structural setting can increase the friction coefficient of the pulley, increase the friction force on the rope, and increase the load capacity of the descent device without damaging the rope.

[0059] As an example, the pattern here is preferably set to be an elliptical concave pattern with a pattern depth of 0.2 mm.

[0060] The movable friction mechanism 230 is used to accommodate the rope groove 240 and can cooperate to lock the rope during use. The movable friction mechanism 230 mainly includes a first sliding fixed plate 231, a second sliding fixed plate 231 and a movable friction block 233.

[0061] The first sliding fixing plate 210 and the second sliding fixing plate 220 are respectively arranged on either side of the rope pulley 300 and the one-way stop bearing 220 and connected together to form a mounting frame structure. At the same time, the movable friction block 233 is also placed between the first sliding fixing plate 231 and the second sliding fixing plate 232 and is located above the rope pulley 240.

[0062] Furthermore, a bidirectional rope guide groove 234 is provided on the movable friction block 233 to cooperate with the fixed friction block 124 and the anti-panic stop friction block 125. When specifically set, the angle of the guide groove is preferably set to 15°.

[0063] When the one-way anti-retraction rope drum 200 based on the above-mentioned structural arrangement is installed in the integrated housing assembly 100, the main body center portion of the one-way anti-retraction rope drum 200 (i.e., the connection assembly portion of the one-way anti-retraction bearing 220, the movable friction mechanism 230 and the rope pulley 240) is passed through the shaft 210 between the movable plate 110 and the fixed plate 120, so that the entire one-way anti-retraction rope drum 200 can rotate around the shaft 210 in the integrated housing assembly 100.

[0064] At the same time, a pin 201 is also provided at the upper end of the one-way stop rope drum 200 (i.e., the upper end of the movable friction mechanism 230). The pin 201 can be movably inserted into the limiting slot 123 of the fixed plate 120 and connected to the control handle assembly 300, so that the one-way stop rope drum 200 as a whole can be driven by the control handle assembly 300. The whole can rotate around the axis 210 within the angle limited by the limiting slot 123, so that the movable friction block 233 in the movable friction mechanism 230 can swing back and forth within the angle limited by the limiting slot 123 to cooperate with the fixed friction block 124 and the anti-panic stop friction block 125.

[0065] For example, the one-way anti-retraction rope drum 200 can lock the rope in both directions during specific operation. Specifically, when using the self-locking rescue descent device, it can lock the rope in one direction and effectively prevent the user from descenting quickly due to panic operation during the use of the descender.

[0066] When the rope reel of this descender is used in a self-locking descending device, the inner wall of the rope wheel has a concave pattern, which can increase the friction coefficient of the rope wheel and the friction force on the rope, thereby increasing the load capacity of the descending device without damaging the rope.

[0067] The rope pulley rotates unidirectionally around the moving friction mechanism, ensuring that after the rope is loaded, the rope pulley is in a free state and can lock the rope in one direction. When ascending using the descending device, the rope pulley rotates in the forward direction, ensuring smooth and resistance-free rope adjustment.

[0068] Since the movable friction block has a two-way rope guide groove, the handle can be adjusted to rotate clockwise or counterclockwise to interact with the fixed friction block during use of the descender device, thereby locking the rope and preventing the danger of rapid descent caused by excessive movement of the handle due to panic operation.

[0069] like Figure 7-Figure 9 As shown, the control handle assembly 300 is mainly used to drive the one-way stop rope drum 200 to rotate, thereby controlling the travel speed of the rope 400 , and mainly includes an ergonomically designed handle 310 , a return spring 320 and a paddle 330 .

[0070] The handle 310 is rotatably mounted on the fixed plate 120 via a rivet shaft 311 . A paddle 330 is mounted on the handle 310 . The paddle 330 cooperates with the pin shaft 201 on the one-way stop rope drum 200 .

[0071] The rotation of the handle 310 can drive the paddle 330 to rotate around the rivet shaft 311. The rotation of the paddle 330 drives the pin 201 on the one-way stop rope drum 200 to rotate along the limiting slot 123 on the fixed plate 120. The rotation of the pin 201 drives the one-way stop rope drum 200 to rotate around the axis 210, thereby achieving the purpose of controlling the gap between the one-way stop rope drum 200 and the fixed friction block 124.

[0072] Furthermore, a return spring 320 is provided on the handle 310, one end of which is connected to the handle 310 and the other end is connected to the fixing plate 120, so as to ensure that the handle assembly 300 is in a state without being stressed. Figure 3 As shown, the handle 310 is always in a reset state. In this state, the one-way anti-return rope drum 200 is driven to face the fixed friction block 124, so that the movable friction block 233 in the one-way anti-return rope drum 200 remains in cooperation with the fixed friction block 124 to tighten the rope 400 between the two.

[0073] Based on the self-locking rescue device of the above structure, this example also provides the mutual coordination relationship of the various components during its specific operation.

[0074] When installing the rope 400, Figure 2 As shown, the user inserts the connecting unit 500 into the first hole 121, rotates the movable plate 110 clockwise, and rotates the handle 310 counterclockwise. The handle 310 drives the paddle 330 to push the one-way stop rope drum 200 to rotate.

[0075] When the one-way stop rope drum 200 rotates to a position with sufficient clearance between the fixed friction block 124 and the anti-panic stop friction block 125 , the rope 400 is passed through the clearance between the anti-panic friction block 125 and the one-way stop rope drum 200 into the self-locking rescue device.

[0076] After the rope 400 is wound around the one-way anti-return rope drum 200 for half a circle, it passes through the gap between the one-way anti-return rope drum 200 and the fixed friction block 124 to exit the self-locking rescue device.

[0077] Rotate the movable plate 110 counterclockwise, insert the connecting unit 500 into the movable plate hole 112, lock the movable plate 110, and use the safety lock 600 to connect the rope 400 to the second hole 122 to prevent the rope 400 from escaping.

[0078] During rescue, if Figure 3-Figure 5 As shown, the connecting unit 500 bears the weight of the user, the self-locking rescue device is subjected to downward pulling force, the one-way stop rope drum 200 is subjected to the friction force of the rope 400 in the clockwise direction along the one-way stop rope drum 200, and the one-way stop rope drum 200 stops in the clockwise direction. The one-way stop rope drum 200 always presses the fixed friction block 124, the rope 400 is locked, and the operator will not fall.

[0079] When descending, Figure 10-12 As shown, the operator can rotate the handle 310, and the paddle 330 drives the pin 201 of the one-way stop rope drum 200, causing the one-way stop rope drum 200 to rotate counterclockwise, thereby adjusting the gap between the one-way stop rope drum 200 and the fixed friction block 124. Rotate the handle 310 to a suitable angle, and the pressure of the one-way stop rope drum 200 on the rope 400 is reduced, and the operator descends.

[0080] The operator can adjust the gap between the one-way anti-retraction rope drum 200 and the fixed friction block 124 by rotating the handle 310, thereby adjusting the operator's descending speed.

[0081] When the operator is in a panic, Figure 13As shown, the handle 310 will be excessively rotated. In this state, the one-way anti-return rope drum 200 presses the anti-panic friction block 125, the rope 400 is compressed, and the operator stops descending.

[0082] When the operator is rescuing, Figure 14 As shown, sometimes it is necessary to carry the rescued person, the load on the device increases, and its descent speed is faster than that when the operator uses it alone, which is prone to danger.

[0083] In this state, when using the self-locking rescue device, the rope 400 can be pressed against the first deceleration friction block 113, and the rope 400 can be held after passing through the second friction block 114 to increase the friction between the rope 400 and the self-locking rescue device, thereby reducing the user's descent speed.

[0084] The self-locking rope rescue device provided by the present invention has the functions of personal ascent, descent, heavy object lifting, heavy object lowering, fall protection, traction and dragging, high load, panic stop, etc., which can meet the needs of high efficiency, emergency rescue and lightweight in rope technology operations.

[0085] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-locking rope rescue device, characterized in that: include: An integrated housing assembly, a one-way stop rope drum, and a control handle assembly. The one-way stop rope drum is rotatably arranged in the integrated housing assembly. A fixed friction block and an anti-panic stop friction block that cooperate with the one-way stop rope drum are provided in the integrated housing assembly. The control handle assembly is arranged on the integrated housing assembly and can drive the one-way stop rope drum to move relative to the fixed friction block and the anti-panic stop friction block, so that the self-locking rope rescue device can switch between three states: an initial self-locking state, a rescue use state, and a panic stop state. The integrated housing assembly is composed of a movable plate and a fixed plate that cooperate with each other, and the movable plate can rotate relative to the fixed plate; the fixed plate is also provided with a limiting structure that limits the rotation stroke of the one-way stop rope drum; one side of the upper end of the inner side surface of the fixed plate is provided with a fixed friction block for cooperating with the one-way stop rope drum to control the speed of the rope; the other side of the upper end of the inner side surface of the fixed plate is also provided with an anti-panic stop friction block, and the anti-panic stop friction block can cooperate with the one-way stop rope drum to stop the rope urgently when the one-way stop rope drum rotates excessively relative to the fixed friction block; The one-way stop rope drum includes a one-way stop bearing, a movable friction mechanism and a rope pulley. The rope pulley is locked and placed on the outer ring of the one-way stop bearing and is placed in the movable friction mechanism through the one-way stop bearing. The movable friction mechanism is locked and arranged with the inner ring of the one-way stop bearing. The movable friction mechanism comprises a first sliding fixed plate, a second sliding fixed plate and a movable friction block, wherein the first sliding fixed plate and the second sliding fixed plate are respectively arranged on both sides of the rope pulley and the one-way stop bearing, and the movable friction block is arranged between the first sliding fixed plate and the second sliding fixed plate; the movable friction block is provided with a bidirectional rope guide groove; The control handle assembly drives and controls the one-way stop rope drum to move relative to the fixed friction block, so as to adjust the clamping degree of the rope between the one-way stop rope drum and the fixed friction block, and complete the hovering, descending and braking operations for rescue; on this basis, the control handle assembly further controls the one-way stop rope drum to rotate relative to the anti-panic stop friction block, so as to adjust the clamping degree of the rope between the one-way stop rope drum and the anti-panic stop friction block. In a panic state, when the handle is excessively rotated, the one-way stop rope drum presses the anti-panic stop friction block, the rope is tightened, and the operator stops descending.

2. The self-locking rope rescue device according to claim 1, characterized in that: The movable plate is provided with a first deceleration friction block and / or a second deceleration friction block.

3. The self-locking rope rescue device according to claim 1, characterized in that: The movable plate is further provided with a hole, and the hole is further provided with a spring lock.

4. The self-locking rope rescue device according to claim 1, characterized in that: A concave rope groove is provided in the circumferential direction of the outer side of the rope wheel, and the angle of the inner wall surface of the rope groove is set to 60°-75°.

5. The self-locking rope rescue device according to claim 4, characterized in that: The upper and lower inner walls of the rope groove are also provided with patterns.

6. The self-locking rope rescue device according to claim 1, characterized in that: The control handle assembly includes a handle, a return spring and a paddle. The handle is rotatably set on a fixed plate. The handle is provided with a paddle, and the paddle cooperates with the one-way stop rope drum. The handle is also provided with a return spring. One end of the return spring is connected to the handle, and the other end is connected to the fixed plate.

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