Rope slip stopper

Abstract

The rope anti-slip device comprises a shell, an anti-slip system, a rope loading system and a connecting mechanism are arranged in the shell, and a rope containing groove is formed in the position of the shell; the anti-slip system comprises a rotating frame, a rotating wheel with thorns is arranged on the rotating frame, a cavity is formed in the rotating wheel with the thorns, arc clamping and matching notches are formed in the cavity, stop blocks are arranged on the two arc clamping and matching notches, a blocking table is arranged on the cavity, an end cover is arranged on the rotating frame, and a set of arc-shaped stop tables are arranged in the end cover. The rope loading system comprises a sliding plate, a guide groove is formed in the sliding plate, a guide rod is fixed to the shell, a rotating plate is arranged on the shell, and a clamping groove is formed in the rotating plate; a blocking column is fixed to the shell, and a first torsional spring is installed on the shell. The connecting mechanism comprises a bayonet, and a cross rod is arranged at the bayonet. The anti-slip device has multiple safety measures, is good in anti-slip effect and is worthy of popularization and application.

Description

Technical Field

[0001] The invention relates to the technical field of rope safety devices, in particular to a rope anti-slip device. Background Art

[0002] An anti-slip device, also known as a fall arrester, is a product that provides protection against falling objects at high altitudes. It can quickly brake and lock falling objects within a limited distance and is suitable for rock climbing, cargo lifting, etc. It not only protects the lives of rock climbers and ground operators, but also prevents climbers from getting injured and damage to suspended objects. When the user suddenly falls, the anti-slip device will jam the rope to prevent the user from continuing to fall. However, traditional fall arresters may become loose when locking the rope, which may cause safety hazards. Moreover, after the rope is locked, there is a risk of the rope escaping from the fall arrester, and there are no multiple safety mechanisms.

[0003] Chinese invention patent CN103920254B discloses a fall prevention safety device for stopping a rope, comprising: a rigid body provided with a rope placement groove for accommodating a rope; a safety system designed to rotate between a closed position and an open position, the closed position being used to cooperate with the rope by stopping the rope at the bottom of the rope placement groove in the event of a fall, and the open position being used to release the passage to the rope placement groove to load or remove the rope; and a controller for transferring the safety system from the closed position to the open position and vice versa, the control device comprising a pair of clamping cleats, which can be simultaneously actuated in the open position to stabilize and lock the safety system in the open position, and the two clamping cleats are arranged side by side on a transverse pivot pin integral with the pivot safety system. This kind of fall prevention safety device has safety hazards and the risk of loosening. Summary of the invention

[0004] The present invention aims to solve the above-mentioned shortcomings of the prior art and provide a rope anti-slip device which provides multiple safety guarantees and good anti-slip effect, thereby meeting the requirements of multiple safety guarantees, rapid anti-slip and good effect when the anti-slip device is used.

[0005] The present invention solves the technical problem by adopting a technical solution: the rope anti-slip device comprises a shell, in which an anti-slip system, a rope loading system and a connecting mechanism are installed, and a rope placement groove is arranged at the shell; the anti-slip system comprises a rotating frame, on which a barbed rotating wheel is rotatably connected, a cavity is opened in the barbed rotating wheel, a pair of arc-shaped clip-on notches arranged opposite to each other are opened in the cavity, stop blocks are rotatably connected to the two arc-shaped clip-on notches, a blocking platform for rotationally blocking the two stop blocks is fixed on the cavity, tension springs are respectively installed between the barbed rotating wheel and the two stop blocks, an end cover which is plugged into the cavity is clamped on the rotating frame, and a group of uniformly distributed along the center of the end cover and connected to the two stop blocks are arranged in the end cover. The invention relates to an arc-shaped stop table matched with a block; the rope loading system includes a slide plate located at the side end of the rope placement groove, the slide plate is provided with a pair of guide grooves arranged opposite to each other, a guide rod which is plugged into the guide groove is fixed on the shell, a limit block which prevents the slide plate from moving longitudinally is fixed on the top of the guide rod on one side, a clamping block is fixed on the top of the guide rod on the other side, a rotating plate is axially connected to the shell, and a clamping groove which is horizontally clamped into the clamping block is opened on the rotating plate; a blocking column for blocking the rotating frame from rotating counterclockwise is fixed on the shell, and a first torsion spring which drives the rotating frame to rotate counterclockwise is installed on the shell; the connecting mechanism includes a bayonet located on the right side of the rope placement groove and on the top of the rotating frame, and a cross bar fixed to the rotating frame is provided at the bayonet. The function of the anti-slip system here is to quickly and safely prevent the user or the heavy object from falling suddenly; the function of the rope installation system here is to quickly install the anti-slip device to the rope and install it properly so that it will not get loose; the function of the connecting mechanism here is to hang the hook here and tie the hook to the human body or heavy object through a safety rope. When the human body or heavy object falls quickly, it can be locked by the anti-slip system and will not fall, thus playing a safety role.

[0006] Further improvement, a pair of guide openings are opened on the bottom surface of the slide, and a guide block matching the guide openings is fixed on the shell. Here, the guide openings and the guide blocks play a role in guiding the slide to move, and the moving position is more accurate and will not deviate.

[0007] Further improvement, a socket is provided on the shell, a plug column is inserted in the socket, a guide slot is provided on the plug column, a positioning pin is connected to the shell through a transverse thread, the head end of the positioning pin is matched in the guide slot, a first compression spring is installed between the plug column and the bottom surface of the socket, a matching hole is provided on the slide plate to match the top of the plug column, a push block is transversely inserted at the top of the plug column, a reset spring for moving and resetting the push block is installed between the push block and the plug column, the bottom end of the push block is attached to the end surface of the shell, when the push block is pushed to the end, the push block is separated from the end surface of the shell, and a group of grooves are provided on the top of the push block. The socket, the plug column, the guide slot, the positioning pin, the first compression spring, the matching hole, the push block, the reset spring, and the grooves here serve as double insurance for the slide plate. When the rope is located at the rope placement slot, the slide plate can only be opened when the rotary plate and the plug column are unlocked at the same time, so that the anti-skid device will be safer when used, avoiding the risk of misoperation and loosening.

[0008] Further improvement, the slide plate is provided with a notch around the push block. The function of the notch is to facilitate the pushing action of the push block.

[0009] Further improvement, a pair of relatively arranged arc-shaped hook blocks are fixed at the rotation center of the barbed rotating wheel, and a locking block is rotatably connected at the end cover, and a stopper cooperating with the arc-shaped hook block is arranged on the locking block, a cylinder is fixed on the locking block, and a second torsion spring that enables the locking block to rotate toward the arc-shaped hook block is installed on the end cover, a spherical locking position hole and a spherical positioning hole are opened on the shell body, and a transition guide groove is arranged between the spherical locking position hole and the spherical positioning hole, a locking plate is provided on the shell body, and a slide groove is opened at both ends of the lock plate, a plug rod cooperating with the slide groove is fixed on the shell body, and a stopper that makes the lock plate stick to the end face of the shell body is fixed on the top of the two plug rods, and a positioning column is fixed on the lock plate, and a steel ball cooperating with any one of the spherical locking position hole and the spherical positioning hole is ball-connected at the bottom end of the positioning column, and a channel that allows the steel ball to move up is opened on the positioning column, and a second compression spring that presses the steel ball is installed at the channel, and an arc block cooperating with the cylinder is fixed on the bottom surface of the lock plate. Here, the arc-shaped hook block, locking block, stopper, cylinder, second torsion spring, spherical locking hole, spherical positioning hole, transition guide groove, locking plate, slide groove, plug rod, stopper, positioning column, steel ball, channel, second compression spring, and arc block have the function of locking the anti-skid device. You only need to push the locking plate outward, and then the steel ball at the locking plate will elastically shrink inward and reach the spherical locking hole through the transition guide groove, so that the arc block is freed from the pressure on the cylinder, and then the locking block is acted on by the reset torque of the second torsion spring, and the stopper on the locking block will move toward the arc-shaped hook block. When the lock is released, it is only necessary to push the lock plate inward, and then the steel ball at the lock plate will elastically shrink and reach the spherical positioning hole through the transition groove, so that the arc block presses the cylinder, so that the lock block rotates clockwise and the second torsion spring rotates to generate torsion energy storage, thereby making the stopper disengage from the arc hook block without affecting the rotation of the barbed wheel.

[0010] Further improvement, a limit groove is opened on the shell, the top of the cylinder is located at the limit groove, and the cylinder is used to limit the opening of the rotating frame. The function of the limit groove here is to avoid the situation where the rotating frame is opened too much by force, thereby damaging the first torsion spring and causing the first torsion spring to lose its reset torque.

[0011] Further improvement, the direction of the spikes on the barbed wheel is offset along the counterclockwise direction of the barbed wheel. Here, the effect of the direction of the spikes on the barbed wheel offset along the counterclockwise direction of the barbed wheel is that when the user or the heavy object falls suddenly, the spikes on the barbed wheel will be stuck on the rope, thereby playing a better role in locking the rope, and avoiding the relative sliding of the outer contour of the barbed wheel and the rope when the barbed wheel is stuck due to centrifugal force; because the barbed wheel rotates counterclockwise relative to the rope during a sudden fall, the direction of the spikes on the barbed wheel offset along the counterclockwise direction of the barbed wheel can make the spikes penetrate into the rope, thereby better avoiding the phenomenon of slipping between the barbed wheel and the rope during a sudden fall, and being safer.

[0012] Further improvement, a group of strip grooves arranged at intervals are arranged on the end surface of the rope placement groove. The function of the strip grooves here is that when the user or the heavy object falls suddenly, the spiked wheel will move toward the side of the strip grooves, so that when the rope is squeezed by the spiked wheel, the rope will be squeezed at the strip grooves, thereby increasing the friction resistance, which can further increase the anti-slip effect.

[0013] Further improvement, the outer side of the rotating frame is provided with a group of observation and cleaning openings evenly spaced along the profile of the rotating frame. The function of the observation and cleaning openings is that when debris is stuck on the barbed wheel, it can be observed and processed in time.

[0014] The beneficial effects of the present invention are:

[0015] 1). The anti-slip system can quickly and safely prevent the user or heavy objects from slipping when they suddenly fall;

[0016] 2). The anti-slip device can be quickly installed on the rope through the rope loading system and installed properly without loosening;

[0017] 3). The hook can be hung here through the connection mechanism and tied to the human body or heavy objects through the safety rope. When the human body or heavy objects fall rapidly, they can be locked by the anti-slip system and will not fall, thus playing a safety role;

[0018] 4). Through the insertion hole, the insertion column, the guide notch, the positioning pin, the first compression spring, the matching hole, the push block, the return spring and the groove, the slide board can be double-insured. When the rope is located in the rope placement groove, the slide board can only be opened when the rotary plate and the insertion column are unlocked at the same time, so that the anti-slip device will be safer when used, avoiding the risk of misoperation and loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional Figure 1 ;

[0020] Figure 2 The three-dimensional Figure 2 ;

[0021] Figure 3 The three-dimensional Figure 3 ;

[0022] Figure 4 The three-dimensional Figure 4 ;

[0023] Figure 5 The three-dimensional Figure 5 ;

[0024] Figure 6 The three-dimensional Figure 6 ;

[0025] Figure 7 The three-dimensional Figure 7 ;

[0026] Figure 8 The three-dimensional Figure 8 ;

[0027] Fig. 9 The explosion of the present invention Figure 1 ;

[0028] Fig.10 The explosion of the present invention Figure 2 ;

[0029] Fig.11 It is a schematic diagram of the structure of the positioning column in the present invention;

[0030] Fig.12 A three-dimensional diagram of the column insertion area of ​​the present invention;

[0031] Fig.13 It is a cross-sectional view of the column insertion area in the present invention;

[0032] Fig.14 It is a schematic diagram of the present invention.

[0033] Description of reference numerals: housing 1, rope placement groove 1-1, strip groove 1-1a, limit groove 1-8, anti-slip system 2, rotating frame 2-1, first torsion spring 2-3, barbed wheel 2-4, cavity 2-4a, arc card slot 2-4b, blocking platform 2-4c, arc hook block 2-4d, stop block 2-5, tension spring 2-6, end cover 2-7, arc stop platform 2-7a, rope loading system 3, slide plate 3-1, guide groove 3-1a, guide port 3-1b, matching hole 3-1c, concave Mouth 3-1d, guide rod 3-2, limit block 3-3, card block 3-4, rotary plate 3-5, card slot 3-5a, plug column 3-6, guide slot 3-6a, positioning pin 3-7, first compression spring 3-8, push block 3-9, groove 3-9a, return spring 3-10, connecting mechanism 4, card slot 4-1, cross bar 4-2, lock plate 5, slide groove 5-1, positioning column 5-2, steel ball 5-2a, channel 5-2b, second compression spring 5-2c, arc block 5-3, rope 6, hook 7. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings:

[0035] Referring to the accompanying drawings: This rope anti-slip device includes a housing 1, in which an anti-slip system 2, a rope loading system 3 and a connecting mechanism 4 are installed, and a rope placement groove 1-1 is provided at the housing 1; the anti-slip system 2 includes a rotating frame 2-1, and a barbed rotating wheel 2-4 is rotatably connected to the rotating frame 2-1, and a cavity 2-4a is opened in the barbed rotating wheel 2-4, and a pair of arc snap-fitting notches 2-4b arranged oppositely are opened in the cavity 2-4a, and the two arc snap-fitting grooves The openings 2-4b are rotatably connected with stop blocks 2-5, and a blocking platform 2-4c for blocking the two stop blocks 2-5 is fixed on the cavity 2-4a. Tension springs 2-6 are respectively installed between the barbed wheel 2-4 and the two stop blocks 2-5. An end cover 2-7 that is plugged with the cavity 2-4a is clamped on the rotating frame 2-1. A group of arc-shaped stop platforms 2-7 are evenly distributed along the center of the end cover 2-7 and matched with the two stop blocks 2-5 are arranged in the end cover 2-7. -7a; the rope loading system 3 includes a slide plate 3-1 located at the side end of the rope placement groove 1-1, a pair of guide grooves 3-1a arranged oppositely are opened on the slide plate 3-1, a guide rod 3-2 which is plugged into the guide groove 3-1a is fixed on the shell 1, a limit block 3-3 is fixed to the top of the guide rod 3-2 on one side to prevent the slide plate 3-1 from moving longitudinally, and a clamping block 3-4 is fixed to the top of the guide rod 3-2 on the other side, a rotary plate 3-5 is axially connected to the shell 1, and a clamping groove 3-5a is opened on the rotary plate 3-5 to horizontally clamp the clamping block 3-4; a blocking column 2-2 for blocking the rotating frame 2-1 from rotating counterclockwise is fixed on the shell 1, and a first torsion spring 2-3 for driving the rotating frame 2-1 to rotate counterclockwise is installed on the shell 1; the connecting mechanism 4 includes a bayonet 4-1 located on the right side of the rope placement groove 1-1 and at the top of the rotating frame 2-1, and a cross bar 4-2 fixed to the rotating frame 2-1 is provided at the bayonet 4-1.

[0036] A pair of guide openings 3-1b are formed on the bottom surface of the slide plate 3-1, and a guide block 1-2 matching with the guide openings 3-1b is fixed on the housing 1.

[0037] A socket 1-3 is provided on the shell 1, a plug post 3-6 is inserted at the socket 1-3, a guide slot 3-6a is provided on the plug post 3-6, a positioning pin 3-7 is transversely threadedly connected to the shell 1, the head end of the positioning pin 3-7 is engaged in the guide slot 3-6a, a first compression spring 3-8 is installed between the plug post 3-6 and the bottom surface of the socket 1-3, a matching hole 3-1c is provided on the slide plate 3-1 to cooperate with the top of the plug post 3-6, a push block 3-9 is transversely inserted at the top of the plug post 3-6, a reset spring 3-10 for moving and resetting the push block 3-9 is installed between the push block 3-9 and the plug post 3-6, the bottom end of the push block 3-9 is attached to the end surface of the shell 1, when the push block 3-9 is pushed to the end, the push block 3-9 is separated from the end surface of the shell 1, and a group of grooves 3-9a are provided on the top of the push block 3-9.

[0038] The slide plate 3-1 is provided with a notch 3-1d around the push block 3-9.

[0039] A pair of relatively arranged arc-shaped hook blocks 2-4d are fixed at the rotation center of the barbed wheel 2-4, a locking block 2-8 is rotatably connected at the end cover 2-7, a stopper 2-8a cooperating with the arc-shaped hook block 2-4d is arranged on the locking block 2-8, a cylinder 2-8b is fixed on the locking block 2-8, a second torsion spring 2-9 which makes the locking block 2-8 rotate toward the arc-shaped hook block 2-4d is installed on the end cover 2-7, a spherical locking position hole 1-5 and a spherical positioning hole 1-6 are opened on the housing 1, a transition guide groove 1-7 is arranged between the spherical locking position hole 1-5 and the spherical positioning hole 1-6, a locking plate 5 is arranged on the housing 1, and both ends of the locking plate 5 A slide groove 5-1 is provided, and an insertion rod 1-4 cooperating with the slide groove 5-1 is fixed on the shell 1. The top ends of the two insertion rods 1-4 are fixed with blocks 1-4a for making the lock plate 5 stick to the end surface of the shell 1. A positioning column 5-2 is fixed on the lock plate 5. The bottom end of the positioning column 5-2 is spherically connected with a steel ball 5-2a cooperating with any one of the spherical locking hole 1-5 and the spherical positioning hole 1-6. The positioning column 5-2 is provided with a channel 5-2b for allowing the steel ball 5-2a to move upward, and a second compression spring 5-2c for pressing the steel ball 5-2a is installed at the channel 5-2b. An arc block 5-3 cooperating with the cylinder 2-8b is fixed to the bottom surface of the lock plate 5.

[0040] A limiting groove 1-8 is provided on the shell 1, and the top end of the cylinder 2-8b is located at the limiting groove 1-8. The cylinder 2-8b is used to rotate the frame 2-1 to open the limiting groove.

[0041] The direction of the thorns on the thorny rotating wheel 2-4 is offset in the counterclockwise direction of the thorny rotating wheel 2-4.

[0042] A group of strip grooves 1-1a arranged at intervals are arranged on the end surface of the rope placement groove 1-1.

[0043] The outer side surface of the rotating frame 2-1 is provided with a group of observation and cleaning openings 2-1a which are evenly spaced along the contour of the rotating frame 2-1.

[0044] The working principle of the present invention is as follows: when the anti-slip device is needed, the rotary plate 3-5 is first lifted, so that the card slot 3-5a is separated from the card block 3-4, and then the push block 3-9 is pressed to move outward and separate from the end surface of the shell 1, and the finger is pressed down without releasing it, and then the slide plate 3-1 is moved outward, so that the rope placement groove 1-1 is opened laterally, and then the rotating frame 2-1 is rotated outward counterclockwise to enlarge the rope placement groove 1-1, and then the rope 6 is inserted into the rope placement groove 1-1, and the rotating frame 2-1 is moved away, so that The rotating frame 2-1 is reset by the torsion of the first torsion spring 2-3, so that the barbed wheel 2-4 is pressed against the rope 6. Then, the slide plate 3-1 is pushed back to its original position, and the plug post 3-6 is moved up by the reset spring 3-10 and re-stuck in the matching hole 3-1c. The push block 3-9 is also reset by the reset spring 3-10 so that part of the bottom surface of the push block 3-9 is located above the end surface of the shell 1, which prevents the slide plate 3-1 from falling out. Subsequently, the hook 7 tied with the human body is hung on the cross bar 4-2. When the user or heavy objects suddenly fall, , the stop block 2-5 is thrown by the instantaneous centrifugal force, thereby rotating toward the arc-shaped stop platform 2-7a, and pulling the tension spring 2-6 to store energy, the two stop blocks 2-5 will instantly rotate to the arc-shaped stop platform 2-7a and get stuck at the arc-shaped stop platform 2-7a. Since the end cover 2-7 is stationary, after the two stop blocks 2-5 are stuck, the barbed wheel 2-4 will not rotate either, so that the anti-skid device stops in the air, thereby playing a stopping safety role for users or heavy objects in emergency situations; when the anti-skid device needs to be locked, it is only necessary to push the locking plate 5 outward , and then the steel ball 5-2a at the lock plate 5 shrinks elastically and reaches the spherical locking hole 1-5 through the transition guide groove 1-7, so that the arc block 5-3 is separated from the pressure on the cylinder 2-8b, so that the lock block 2-8 is acted upon by the reset torque of the second torsion spring 2-9, and the stopper 2-8a on the lock block 2-8 will rotate toward the arc hook block 2-4d, so that the stopper 2-8a will block the rotation of the arc hook block 2-4d, thereby achieving the purpose of locking the movement of the anti-skid device, playing a safer role in emergency situations, and is worthy of promotion and application.

[0045] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A rope anti-slip device, comprising a housing (1), characterized in that: An anti-slip system (2), a rope loading system (3) and a connecting mechanism (4) are installed in the housing (1), and a rope placement groove (1-1) is provided at the housing (1); The anti-slip system (2) comprises a rotating frame (2-1), a spinner with a spiked rotating wheel (2-4) is rotatably connected to the rotating frame (2-1), a cavity (2-4a) is formed in the spinner with a spiked rotating wheel (2-4), a pair of oppositely arranged circular arc snap-fitting notches (2-4b) is formed in the cavity (2-4a), a stopper block (2-5) is rotatably connected to the two circular arc snap-fitting notches (2-4b), and a pair of stopper blocks (2-5) are fixed to the cavity (2-4a). A blocking platform (2-4c) for blocking the rotation of the moving block (2-5), tension springs (2-6) are respectively installed between the barbed rotating wheel (2-4) and the two stop blocks (2-5), an end cover (2-7) plugged with the cavity (2-4a) is clamped on the rotating frame (2-1), and a group of arc-shaped stop platforms (2-7a) are evenly arranged along the center of the end cover (2-7) and matched with the two stop blocks (2-5) are arranged in the end cover (2-7); The rope loading system (3) comprises a slide plate (3-1) located at the side end of the rope placement groove (1-1), a pair of guide grooves (3-1a) arranged opposite to each other are formed on the slide plate (3-1), a guide rod (3-2) plugged into the guide groove (3-1a) is fixed on the housing (1), a limit block (3-3) for preventing the slide plate (3-1) from moving longitudinally is fixed on the top of the guide rod (3-2) on one side, and a clamping block (3-4) is fixed on the top of the guide rod (3-2) on the other side, a rotary plate (3-5) is axially connected to the housing (1), and a clamping groove (3-5a) for horizontally clamping the clamping block (3-4) is formed on the rotary plate (3-5); a blocking column (2-2) for blocking the rotating frame (2-1) from rotating counterclockwise is fixed on the housing (1), and a first torsion spring (2-3) for driving the rotating frame (2-1) to rotate counterclockwise is installed on the housing (1); The connection mechanism (4) comprises a bayonet (4-1) located on the right side of the rope placement slot (1-1) and located on the top of the rotating frame (2-1); a crossbar (4-2) fixed to the rotating frame (2-1) is provided at the bayonet (4-1).

2. A rope anti-slip device according to claim 1, characterized in that: The bottom surface of the slide plate (3-1) is provided with a pair of guide openings (3-1b), and a guide block (1-2) matching with the guide openings (3-1b) is fixed on the housing (1).

3. A rope anti-slip device according to claim 2, characterized in that: The housing (1) is provided with a plug hole (1-3), a plug post (3-6) is plugged into the plug hole (1-3), a guide slot (3-6a) is provided on the plug post (3-6), a positioning pin (3-7) is transversely threadedly connected to the housing (1), a head end of the positioning pin (3-7) is engaged with the guide slot (3-6a), a first compression spring (3-8) is installed between the plug post (3-6) and the bottom surface of the housing (1-3), and a first compression spring (3-8) is provided on the slide plate (3-1) for engagement with the plug post (3-6). ) at the top of the housing (1), a push block (3-9) is laterally inserted at the top of the plug post (3-6), a reset spring (3-10) for moving and resetting the push block (3-9) is installed between the push block (3-9) and the plug post (3-6), the bottom end of the push block (3-9) is attached to the end face of the housing (1), when the push block (3-9) is pushed to the end, the push block (3-9) is separated from the end face of the housing (1), and a group of grooves (3-9a) are opened at the top of the push block (3-9).

4. A rope anti-slip device according to claim 3, characterized in that: The slide plate (3-1) is provided with a notch (3-1d) located around the push block (3-9).

5. A rope anti-slip device according to claim 4, characterized in that: A pair of arc-shaped hook blocks (2-4d) arranged opposite to each other are fixed at the rotation center of the barbed rotating wheel (2-4); a locking block (2-8) is rotatably connected to the end cover (2-7); a stopper (2-8a) cooperating with the arc-shaped hook block (2-4d) is arranged on the locking block (2-8); a cylinder (2-8b) is fixed on the locking block (2-8); a second torsion spring (2-9) for rotating the locking block (2-8) toward the arc-shaped hook block (2-4d) is installed on the end cover (2-7); a spherical locking position hole (1-5) and a spherical positioning hole (1-6) are opened on the housing (1); a transition guide groove (1-7) is arranged between the spherical locking position hole (1-5) and the spherical positioning hole (1-6); a locking plate (5) is arranged on the housing (1); two ends of the locking plate (5) are provided. A slide groove (5-1) is opened at the end, and a plug rod (1-4) matched with the slide groove (5-1) is fixed on the shell (1), and a stopper (1-4a) is fixed on the top of the two plug rods (1-4) to make the lock plate (5) stick to the end surface of the shell (1), and a positioning column (5-2) is fixed on the lock plate (5), and the bottom end of the positioning column (5-2) is spherically connected with a steel ball (5-2a) matched with any one of the spherical locking hole (1-5) and the spherical positioning hole (1-6), and a channel (5-2b) for allowing the steel ball (5-2a) to move upward is opened on the positioning column (5-2), and a second compression spring (5-2c) for pressing the steel ball (5-2a) is installed at the channel (5-2b), and a circular arc block (5-3) matched with the cylinder (2-8b) is fixed on the bottom surface of the lock plate (5).

6. A rope anti-slip device according to claim 5, characterized in that: A limiting groove (1-8) is provided on the shell (1), the top end of the cylinder (2-8b) is located at the limiting groove (1-8), and the cylinder (2-8b) is used to rotate the frame (2-1) to open the limiting groove.

7. The rope anti-slip device according to claim 1, characterized in that: The direction of the thorns on the thorny rotating wheel (2-4) is offset in the counterclockwise direction of the thorny rotating wheel (2-4).

8. The rope anti-slip device according to claim 1, characterized in that: A group of strip grooves (1-1a) arranged at intervals are arranged on the end surface of the rope placement groove (1-1).

9. The rope anti-slip device according to claim 1, characterized in that: The outer side surface of the rotating frame (2-1) is provided with a group of observation and cleaning openings (2-1a) which are evenly spaced and arranged along the contour of the rotating frame (2-1).

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