Quickly assembled and disassembled multifunctional fall arrestor

Abstract

The application discloses a multifunctional quick-mounting and quick-dismounting anti-falling device, which comprises a base plate, a holding plate for holding a T-shaped rail from the side is rotationally connected to the rear side of the base plate, a lock catch for hanging a safety rope is arranged at the center of the front side of the base plate and can rotate up and down, a switch ring is arranged outside the lock catch, a lock stopper is arranged at the rear end face of the switch ring and extends to the rear side of the base plate to lock the holding plate and the T-shaped rail. The anti-falling device can realize whole-process protection during climbing and can be quickly mounted and dismounted by one hand when needed, thereby ensuring the safety of an operator.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of climbing tools and high-altitude safety protection in the power industry, and particularly relates to a multifunctional anti-falling device capable of being quickly assembled and disassembled. BACKGROUND

[0002] Anti-falling protection during high-altitude operation climbing is a big problem for operation personnel. At present, T-shaped rails are installed on towers in the power industry for installing rail self-lockers. However, there are few safety tools on the market that provide protection during climbing, and they are very inconvenient to use. Some rail type anti-falling devices cannot be removed after being installed at the bottom, and when the anti-falling device is stuck due to rail deformation or needs to be changed, the safety rope has to be removed, and protection cannot be provided. A small number of rail type anti-falling devices that can be assembled and disassembled in the middle need to be operated by both hands in the air, and it takes several seconds to remove or install them, which greatly increases the risk factor of high-altitude operation. During high-altitude operation, both hands are often used during climbing, and at least one hand needs to hold a solid component at any time to ensure the safety of the climbing operator. The anti-falling device cannot be installed and removed at the same time. At the same time, the existing rail type anti-falling device cannot achieve one device with multiple functions. The ordinary anti-falling device can only be used on the T-shaped rail. The operator needs to carry a safety belt and a backup safety rope for high-altitude operation in addition to the rail type anti-falling device. Carrying too many equipment will increase the weight of the operator, consume physical energy, and increase the risk of high-altitude operation. It cannot provide full protection for the operator. SUMMARY

[0003] In view of the above problems, the present application discloses a multifunctional anti-falling device capable of being quickly assembled and disassembled. The anti-falling device can provide full protection during climbing, and can be quickly assembled and disassembled with one hand when needed to ensure the safety of the operator.

[0004] A multifunctional anti-falling device capable of being quickly assembled and disassembled, comprising a base plate, a holding plate for holding a T-shaped rail from the side is rotatably connected to the rear side of the base plate, a lock catch for hanging a safety rope is rotatably arranged at the center of the front side of the base plate, a switch ring is arranged outside the lock catch, a lock stopper is arranged at the rear end face of the switch ring and extends to the rear side of the base plate to lock the holding plate and the T-shaped rail.

[0005] Preferably, the lock stopper comprises a first lock stopper for locking the holding plate and a second lock stopper for locking the base plate.

[0006] Preferably, the first lock stopper comprises an eccentric stopper, and the holding plate is provided with a clamping groove matched with the eccentric stopper.

[0007] Preferably, the eccentric block is connected with a locking buckle preventing the switch ring from loosening, the center of the base plate is a hollow structure, and a groove matched with the locking buckle is arranged on the upper end face and / or lower end face of the hollow structure.

[0008] Preferably, the second locking device comprises a locking tongue, the locking tongue is in sliding connection with the front side of the base plate, and the switch ring is provided with an unlocking button matched with the locking tongue.

[0009] Preferably, the rear end face of the switch ring is provided with a sliding groove in the axial direction of the switch ring, the locking tongue is slidingly installed in the sliding groove, the first end of the locking tongue protrudes from the rear end face of the switch ring and is in sliding connection with the front side of the base plate, a first reset spring is arranged between the second end of the locking tongue and the end of the sliding groove, and the side face of the switch ring is in sliding connection with the unlocking button matched with the locking tongue through a wedge-shaped matching surface.

[0010] Preferably, the side face of the embracing plate in contact with the T-shaped track is provided with a roller, and a second reset spring is arranged between the side face of the roller and the embracing plate.

[0011] Preferably, the embracing plate is two pieces, the two embracing plates are symmetrically arranged on both sides of the base plate about the vertical center line of the base plate, and the cross section of the embracing plate is L-shaped.

[0012] Preferably, the locking buckle is horizontally arranged in an L-shaped structure, the corner of the L-shaped structure is in rotary connection with the base plate, and the long side plate of the L-shaped structure is used for connecting the safety rope.

[0013] Preferably, the rotary connection position of the embracing plate and the base plate is provided with a torsional spring enabling the embracing plate to be flared.

[0014] Preferably, the fall protector is further provided with an auxiliary fixing rail for high-altitude operation, the auxiliary fixing rail comprises a clamping frame with a T-shaped cross section, and limit plates are arranged at both ends of the clamping frame.

[0015] Beneficial effects:

[0016] 1. The fall protector can be matched with the installed T-shaped track to realize whole-process protection during climbing, and when the track is deformed and the fall protector cannot pass through, the fall protector needs to be replaced with a track or needs to be used in an area far away from the T-shaped track, the fall protector can be quickly disassembled, the installation can be quickly completed, and the installation and disassembly can be completed by only one hand.

[0017] 2. After reaching the work site, the multifunctional fall protector can also be used as a buckle of a formal safety belt, so that the types of safety tools carried are reduced, the burden of the operator is reduced, and the safety of the operation is improved.

[0018] 3、The present application is provided with a scrollable scroll wheel, which can make the mechanism run more smoothly, and also reasonably increase the gap of the mechanism, so that it is not easy to be stuck even if the track is deformed. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0020] Figure 1 is a structure diagram of the anti-falling device of the present application Figure 1 .

[0021] Figure 2 is a structure diagram of the anti-falling device of the present application Figure 2 .

[0022] Figure 3 is a structure diagram of the anti-falling device of the present application Figure 1 .

[0023] Figure 4 is a structure diagram of the anti-falling device of the present application Figure 2 .

[0024] Figure 5 is a structure diagram of the anti-falling device of the present application

[0025] Figure 6 is Figure 5 a detailed view of part of the structure in

[0026] Figure 7 is a position relationship diagram of the switch ring and the holding plate before the holding plate is installed to the T rail

[0027] Figure 8 is a position relationship diagram of the switch ring and the holding plate after the holding plate holds the T rail

[0028] Figure 9 is a position relationship diagram of the switch ring, the second locking device and the base plate

[0029] Figure 10 is a structure state diagram of the first locking device after the holding plate holds the T rail

[0030] Figure 11 is a structure relationship diagram of the anti-falling device and the auxiliary fixing rail

[0031] Figure 12 is a structure diagram of the locking buckle

[0032] In the figure: 1, base plate, 1-1, vertical groove, 1-2, horizontal groove, 2, holding plate, 2-1, guide block, 2-2, clamping groove, 2-3, protruding block, 3, lock catch, 4, switch ring, 4-1, locking catch, 4-2, eccentric stop block, 5, torsion spring, 6, roller, 7, second return spring, 8, unlocking button, 9, lock tongue, 10, first return spring, 11, T-shaped rail, 12, safety rope, 13, auxiliary fixing rail, 14, support shaft, 15, vertical shaft. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same reference numerals throughout the several views. The embodiments described below are examples for explaining the present application and should not be construed as limiting the present application.

[0034] Those skilled in the art will understand that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," "including," and / or "has" and / or "having," as used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0035] In order to facilitate the understanding of the present application, the present application will be further explained and described in detail below with reference to the drawings and specific embodiments, and the specific embodiments do not constitute a limitation on the implementation of the present application.

[0036] Those skilled in the art will understand that the drawings are only schematic representations of embodiments, and the components in the drawings do not necessarily have to be implemented as shown.

[0037] As shown in Figures 1-10 The present application discloses a multifunctional quick-mounting and quick-dismounting anti-falling device, which comprises a base plate 1, a holding plate 2, a switch ring 4, a locking device and the like main components. The base plate 1 is the basic component of the entire anti-falling device, and other components are mounted on it. Figure 3 and Figure 4 The base plate is in an I-shaped structure, and a square hole is formed in the middle of the vertical plate of the I-shaped structure, which is used to accommodate the lock catch 3. A circular hole is arranged on each of the left and right sides of the square hole, and the two circular holes are coaxially arranged. The structure of the lock catch 3 is as shown in Figure 12As shown, the whole is a transverse L-shaped structure, at the corner of the L-shaped structure, the tail of the long side has a round connecting hole, the hole at the corner is matched with the round hole on both sides of the square hole of the base plate, and the lock catch 3 is hinged on the base plate 1 through the shaft pin, and the lock catch can rotate around the shaft pin; the connecting hole at the tail is used for connecting the safety rope 12, when falling occurs, the safety rope will pull the tail of the lock catch 3 to move downward rapidly, causing the lock catch 3 to rotate around the connecting hole at the L-shaped corner, and the L-shaped head will stretch out and tightly press the T-shaped track, the normal pressure is extremely large, causing the friction between the two to increase rapidly, and the normal pressure times the friction coefficient is far greater than the weight of the operating personnel and the equipment, so that the fall protector is locked, and the anti-falling function is realized.

[0038] There are four protrusions with vertical through holes near the four corners on the base plate, which are used for hinging the two holding plates 2, the holding plates are matched with the four protrusions and can rotate along the axis of the vertical through hole to realize the installation and removal on the T-shaped track. The lower part of the two protrusions on the base plate is provided with a torsion spring 5 for turning the holding plate outward in the initial state. Figures 7-8 The locking buckle 4-1 on the end face of the switch ring 4 is shown, so that the switch ring can be firmly attached to the base plate and can rotate within a certain range.

[0039] The structure of the holding plate 2 is shown. Figure 5 As shown, the holding plate is an L-shaped structure in cross section composed of a long plate and a short plate, the long plate of the two L-shaped holding plates symmetrically holds the back of the T-shaped track, so that the fall protector can only slide on the T-shaped track. The short plate of the holding plate is connected to the protrusion with a vertical through hole on the base plate through the upper and lower vertical shafts 15, and the Figure 5 As can be seen, the torsion spring 5 is sleeved on the vertical shaft and is clamped with the vertical shaft, and in the default state, the torsion spring 5 turns the long plate of the holding plate 2 outward along the axis, that is, the two holding plates are open. The upper and lower intermediate portions of the short plate are connected to the guide block 2-1, the cross-sectional view of the guide block 2-1 is a sector, the center of the sector is located on the vertical shaft, and the inner side of the sector-shaped guide block close to the corner connecting portion of the long plate and the short plate is provided with a protruding block 2-3, the protruding block 2-3 and the arc surface of the sector-shaped guide block 2-1 form a clamping groove 2-2, the guide block 2-1 can reinforce the whole holding plate on one hand, and the clamping groove 2-2 on the guide block is used for cooperating with the eccentric block 4-2 on the switch ring 4 to realize the locking and removal functions, the eccentric block is connected with the locking buckle 4-1, the rear of the locking buckle 4-1 is provided with a spring, and the spring is installed in the vertical recess of the base plate and cooperates with the vertical recess to make the locking buckle 4-1 recover to the default state.

[0040] When the fall arrester needs to be installed on the T-shaped rail 11 in the initial state, the safety rope 12 connected with the lock catch 3 is held, and the fall arrester is close to the T-shaped rail 11, so that the outer side of the protruding block 2-3 of the guide block 2-1 is first in contact with the T-shaped rail 11, as shown in Figure 7 The long plate of the clamping plate 2 is pushed to rotate towards the direction close to the back of the T-shaped rail, so that the long plate of the clamping plate embraces the T-shaped rail, when the fall arrester reaches the normal working state, the eccentric block 4-2 on the switch ring 4 is rotated around the center of the switch ring under the action of the spring, and then drives the eccentric block 4-2 to rotate, the eccentric block 4-2 is inserted into the L-shaped clamping groove 2-2 formed between the protruding block 2-3 and the inner side of the fan-shaped guide block, so that the clamping plate is clamped and cannot be restored to the original open state under the action of the torsional spring, as shown in Figure 8 and Figure 10 At this time, the fall arrester is successfully installed, and after other preparation work before climbing is completed, the climbing operation can be carried out.

[0041] As shown in Figure 6 Two rolling wheels 6 are installed on each clamping plate, in the climbing process, the safety rope of the operator is in a state of being always tight, at this time, the clamping plate is in contact with the back of the T-shaped rail and generates a friction force, the rolling wheel changes the sliding friction between the clamping plate and the T-shaped rail into rolling friction, which greatly reduces the size of the friction force and makes the climbing process more smooth; the support shaft 14 of the sliding rolling wheel is rotationally connected with the mounting hole of the clamping plate, and the second reset spring 7 is arranged between the side wall of the clamping plate and the support shaft, the second reset spring is a crescent-shaped spring piece, in the normal state, the spring piece is not compressed, the sliding rolling wheel protrudes from the surface of the clamping plate and is in rolling contact with the T-shaped rail, in the emergency state (such as falling), the lock catch 3 is rotated downward along the base plate under the action of the tension force, at this time, the force acting on the fall arrester is greatly increased, the sliding rolling wheel is subjected to a large downward and outward force, the crescent-shaped spring piece is compressed, the sliding rolling wheel is retracted into the clamping plate, the clamping plate is directly in contact with the T-shaped rail, the rolling friction is changed into sliding friction or static friction, and the falling speed is slowed down, the purpose of this design is to protect the rolling wheel from being crushed in the event of an emergency, and to improve the smoothness of the mechanism during climbing.

[0042] The structure of the switch ring 4 is as shown in Figure 7As shown, the main body of the switch ring is a circular member, two eccentric blocks 4-2 are arranged on the end face of the switch ring close to the base plate, the two eccentric blocks 4-2 are symmetrically arranged about the center of the switch ring, when the clamping plate 2 clamps the T-shaped rail, the eccentric blocks 4-2 are inserted into the grooves 2-2, so that the position of the clamping plate is fixed and cannot be loosened from the T-shaped rail. Since the two eccentric blocks 4-2 are symmetrically distributed about the center, the force can be converted into the internal force of the switch ring 4 when the two sides are forced at the same time, and it will not affect other components, the structure is more stable, and the force can be larger. When it needs to be unlocked, rotate the switch ring 4, the eccentric blocks 4-2 will deviate from the original position, the two eccentric blocks 4-2 are respectively out of the grooves 2-2, and are rotated to the upper and lower surfaces of the grooves 2-2, so that the clamping plate 2 can be rotated to be separated from the T-shaped rail. At this time, the fan-shaped guide block 2-1 will block the eccentric blocks 4-2 of the switch ring 4, so that the switch ring 4 cannot be rotated to the original state. When the fall protector is installed on the T-shaped rail 11 again, the guide block drives the long plate of the clamping plate to rotate, and the eccentric blocks 4-2 are no longer blocked, the switch ring 4 is rotated, and the eccentric blocks 4-2 are inserted into the grooves again, so that the clamping plate cannot be rotated, so that the locking function is realized. The locking buckle 4-1 is also installed on the end face of the switch ring 4 close to the base plate, which is a circular arc piece-shaped member, the locking buckle 4-1 is parallel to the plane where the switch ring 4 is located, and the locking buckle is inserted into the vertical groove 1-1 of the base plate. The switch ring cannot be separated from the base plate 1, but can only rotate in the hole of the base plate 1.

[0043] The lower part of the switch ring 4 is provided with a safety mechanism, which is used to lock the switch ring 4 when the fall protector is working, to prevent the switch ring from being misrotated to cause the fall protector to be unlocked. The safety mechanism is as follows Figure 8As shown, including the lock tongue 9, unlock button 8, and the first reset spring 10, the first reset spring is also a crescent-shaped spring structure as the second reset spring. The base plate side is processed with a horizontal groove 1-2 corresponding to the lock tongue 9 of the safety, for accommodating the lock tongue, the head of the lock tongue 9 extends out of the switch ring 4 and inserts into the horizontal groove 1-2, so that the switch ring 4 cannot rotate, realizing the function of double safety; the side of the switch ring is processed with an inwardly recessed sliding groove, the unlock button 8 is slidingly installed in the sliding groove, and the sliding groove where the lock tongue is located is in communication with the unlock button 8 in the switch ring, the rear half of the lock tongue 9 is in the shape of an inclined wedge, the top end of the unlock button 8 is also in the shape of a wedge, the lock tongue 9 and the unlock button 8 cooperate with each other, after pressing down the unlock button 8 from bottom to top, the two wedges are dislocated under the action of force, the lock tongue 9 will retract into the switch ring 4, realizing the function of unlocking the safety; the first reset spring 10 of the crescent-shaped spring structure is arranged at the rear of the lock tongue, abutting against the lock tongue 9, the crescent-shaped spring has a certain elasticity, after pressing down the unlock button 8, the lock tongue retracts, the crescent-shaped spring is compressed, and after releasing the unlock button 8, the spring recovers, the lock tongue 9 has a tendency to pop out of the switch ring 4 under the action of the crescent-shaped spring, when the switch ring 4 is turned to the position of locking the holding plate 2, the lock tongue will be inserted into the hole of the base plate, locking the switch ring 4 like a pin.

[0044] The safety rope is connected to the lock at one end and to the auxiliary fixing rail 13 at the other end, like Figure 11 The auxiliary fixing rail is a prism structure with a T-shaped cross section, and an end plate is arranged at both ends of the prism, when the worker climbs along the T-shaped slide rail to a high place to start the aerial work, the fall arrest device is clamped into the auxiliary fixing rail and is locked and cannot slide off the auxiliary fixing rail 13. The safety rope between the lock and the auxiliary fixing rail forms a loop. When installing the fall arrest device, the safety rope can be securely hung on the member after the fall arrest device is wound around the solid member, realizing the function of the safety belt buckle, and the aerial work is safely performed. The whole process of taking down the fall arrest device from the T-shaped slide rail 11 and clamping it into the auxiliary fixing rail 13 can be completed by one hand.

[0045] The use process of the fall arrest device is as follows:

[0046] 1. Installation: one end of the safety rope 12 of the fall arrestor is fixed to the safety belt of the worker, the worker is close to the T-shaped track 11 of the tower, at this time the two clamping plates 2 are unfolded, the tail of the lock catch 3 or the part of the lock catch connected with the safety rope is held, the direction is observed, the fall arrestor is close to the T-shaped track, the protruding block 2-3 on the side of the fan-shaped guide block 2-1 first contacts the T-shaped track 11, as the distance is shortened, the clamping plates are gradually closed under the guidance of the guide block, until the final state, the switch ring 3 rotates, the eccentric block 4-2 is inserted into the clamping groove 2-2, the guide block 2-1 is blocked by the eccentric block 4-2, then the safety mechanism acts to lock it, the fall arrestor is installed, and the fall arrestor can be locked, not slide down, and not separate from the T-shaped track 11, which indicates that the installation is correct, and the climbing operation can be performed.

[0047] 2. Disassembly: when the high-altitude operation needs to be away from the T-shaped track 11 or the T-shaped track 11 needs to be replaced, the fall arrestor needs to be disassembled. At this time, the worker holds a solid component with one hand to prevent falling, and disassembles the fall arrestor with the other hand. When disassembling, first press the unlocking button 8 of the safety mechanism with a finger, then keep the unlocking button 8 of the safety mechanism pressed, hold the switch ring 4 with other fingers, and rotate the switch ring 4 counterclockwise until the eccentric block 4-2 is separated from the clamping groove 2-2 of the clamping plate 2. At this time, the two clamping plates 2 will rotate, and the fall arrestor will be disassembled. The disassembled fall arrestor clamping plate will be kept in an unfolded state (open arms) under the action of the eccentric block 4-2 and the torsional spring 5.

[0048] 3. Used as a safety belt: when reaching the ground work site, connect the safety rope of the safety belt to the tail end of the fall arrestor safety rope, find a closed solid component, pass the fall arrestor through the solid component, and then install the fall arrestor on the auxiliary fixing rail 13 fixed to the fall arrestor safety rope. At this time, the safety rope of the fall arrestor will form a closed circular ring, which encloses the solid component. In this way, the safety rope is firmly fixed to the solid component, and can timely pull the worker in case of falling. The tail of the fall arrestor will be equipped with a tear type buffer bag, which can provide a buffer for the falling personnel and reduce the harm to the personnel.

[0049] The above description of disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional quick-mounting and dismounting fall arrester, characterized in that, The application relates to a safety device for T-shaped rails, which comprises a substrate (1), a holding plate (2) rotatably connected to the rear side of the substrate for holding the T-shaped rail on the side, a lock buckle (3) rotatably arranged at the center of the front side of the substrate for hanging a safety rope, a switch ring (4) arranged outside the lock buckle, a lock stopper arranged at the rear end of the switch ring and extending to the rear side of the substrate to lock the holding plate and the T-shaped rail; the lock stopper comprises a first lock stopper for locking the holding plate (2) and a second lock stopper for locking the substrate (1); the first lock stopper comprises an eccentric stopper (4-2), and the holding plate (2) is provided with a clamping groove (2-2) matched with the eccentric stopper; the eccentric stopper (4-2) is connected with a lock buckle for preventing the switch ring (4) from loosening, the center of the substrate (1) is in a hollow structure, and a vertical groove matched with the lock buckle is arranged at the upper end face and / or the lower end face of the hollow structure; the tail of the lock buckle of the first lock stopper is provided with a spring, and the spring is arranged in the vertical groove of the substrate, so that the switch ring has a tendency to return to the original state; the second lock stopper comprises a lock tongue (9) slidably connected with the front side of the substrate (1), and the switch ring (4) is provided with an unlocking button (8) matched with the lock tongue (9); the rear end of the switch ring (4) is provided with a sliding groove in the axial direction of the switch ring, the lock tongue (9) is slidably arranged in the sliding groove, the first end of the lock tongue (9) protrudes from the rear end of the switch ring (4) and is slidably connected with the front side of the substrate, a first reset spring (10) is arranged between the second end of the lock tongue (9) and the end of the sliding groove, and the side of the switch ring (4) is slidably connected with the unlocking button matched with the lock tongue (9) through a wedge-shaped matching surface.

2. The quick-mounting and dismounting multifunctional fall arrester according to claim 1, characterized in that, rollers (6) are arranged on the side of the holding plate in contact with the T-shaped rail, and a second reset spring (7) is arranged between the side of the roller and the holding plate.

3. The quick-mounting and dismounting multifunctional fall arrester according to claim 1, characterized in that, the holding plate is two pieces, and the two holding plates are symmetrically arranged on both sides of the substrate about the vertical center line of the substrate; and the cross section of the holding plate is L-shaped.

4. The quick-mounting and dismounting multifunctional fall arrester according to claim 1, characterized in that, the lock buckle (3) is an L-shaped structure arranged horizontally, the corner of the L-shaped structure is rotatably connected with the substrate (1), and the long side plate of the L-shaped structure is used for connecting the safety rope (12).

5. The quick-mounting and dismounting multifunctional fall arrester according to claim 1, characterized in that, the safety device further comprises an auxiliary fixing rail (13) for high-altitude operation, the auxiliary fixing rail comprises a clamping frame with a T-shaped cross section, and limit sealing plates are arranged at both ends of the clamping frame.

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