Fire operation anti-drop rope tool fixing mechanism

Abstract

The application relates to the technical field of high-altitude operation safety protection equipment, and discloses a fire operation anti-falling rope tool fixing mechanism which comprises a plurality of first connecting blocks and an octagonal column arranged in sequence and connected in an end-to-end mode. Eight-corner holes are formed in the opposite end-to-end connecting ends of the two adjacent first connecting blocks, and the two ends of the octagonal column are respectively inserted into the eight-corner holes corresponding to the two adjacent first connecting blocks. The octagonal column and the eight-corner holes are in 45-degree polygon occlusion positioning, the overall skeleton can be multi-angle self-adaptingly bent and quickly locked, an independent occlusion clamping point is formed at each hinged position, when the mechanism is bent to wrap the base material, the more the folding and wrapping sections are, the more the occlusion clamping points formed by the octagonal column and the eight-corner holes are, a multi-stage mechanical protection structure is constructed, the overall stretching and tightening can be realized, all the gaps horizontally and vertically generated to the fixed base material are eliminated, and force slipping is prevented.

Description

Technical Field

[0001] This invention relates to the field of safety protection equipment for high-altitude operations, specifically a rope fixing mechanism for firefighting operations to prevent falling off. Background Technology

[0002] Currently, in fire rescue and high-altitude operations, most anti-fall devices used for temporarily securing safety ropes adopt traditional rigid U-shaped clamps or single-point hook structures.

[0003] However, existing institutions of this kind have obvious shortcomings in practical use: First, the fixing efficiency is extremely low. Traditional U-shaped clamping hoops mostly rely on long screws passing through the side walls for threaded tightening. In the confined space of high-altitude operations, operators need to use a wrench to repeatedly turn the long screws for a long time to gradually tighten the hoops, which is not only extremely time-consuming and laborious, but also seriously slows down the overall progress of rescue and construction.

[0004] Secondly, they suffer from poor clamping adaptability and insufficient vertical restraint. Traditional U-shaped clamps and hooks are mostly fixed at a single angle, unable to adapt to the contours of channel steel, angle steel, or irregularly shaped pipes, resulting in poor clamping applicability. Furthermore, when dealing with profiles with flat upper surfaces such as channel steel, U-shaped clamps rely primarily on the horizontal clamping force of their side walls for fixation, lacking vertical compression restraint. This makes them prone to vertical movement or loosening when the rope is pulled laterally or shaken.

[0005] Therefore, a rope fixing mechanism to prevent falling off during firefighting operations is needed to solve the above problems. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is: a fire-fighting anti-fall rope fixing mechanism, comprising a plurality of first connecting blocks arranged in sequence and an octagonal post; each of the two adjacent first connecting blocks has an octagonal hole at its opposite docking end, and the two ends of the octagonal post are respectively inserted into the corresponding octagonal holes of the two adjacent first connecting blocks; the adjacent first connecting blocks can rotate relative to each other around the axis of the octagonal post to adjust their relative bending angle, with each rotation angle being 45 degrees. After the angle is adjusted to the correct position, the octagonal post and the octagonal hole engage with each other to complete the final positioning and locking of the rotation angle of the adjacent first connecting blocks.

[0007] Furthermore, a set of first screws and first sleeves is provided in the middle section of the arrangement of all the first connecting blocks. The two ends of the first screws are rotatably connected to the first connecting blocks on both sides respectively, and the threads of the first screws and the first sleeves are engaged with each other. Rotating the first sleeves can drive the first screws to achieve telescopic movement, pulling the entire string of first connecting blocks to tighten the splicing gap, pressing the contact surfaces of the octagonal posts and octagonal holes, eliminating assembly gaps, and preventing the octagonal posts from rotating and slipping under stress.

[0008] Furthermore, in a set of octagonal holes facing each other between two adjacent first connecting blocks, one octagonal hole has several semi-circular holes spaced apart along its sidewall, and the other octagonal hole has a limiting through hole on its sidewall; a locking rod, a first elastic element, and a support plate are slidably assembled inside the limiting through hole; under normal conditions, the first elastic element continuously pushes the locking rod, causing the end of the locking rod to engage in the semi-circular hole, and a temporary locking position is completed every 45 degrees of rotation; when a rotational torque is applied to the adjacent first connecting block, the torque can overcome the elastic force of the first elastic element, forcing the locking rod to automatically retract and disengage from the semi-circular hole, and the gear angle can be continuously rotated and switched without manual pressing to unlock.

[0009] Furthermore, the first connecting block has a threaded hole, and the fitting screw is threaded into the threaded hole. Tightening the fitting screw can press against the adjacent first connecting block, further locking the part to be fixed.

[0010] Furthermore, the outer wall of the octagonal column is rotatably connected with a linkage rod, and the ends of adjacent linkage rods are rotatably hinged to each other; the linkage rods on both sides can be closed or opened to pull the octagonal column to generate axial displacement, so that all octagonal columns can be embedded into the octagonal hole for locking and fixing, or withdrawn from the octagonal hole to release the engagement limit.

[0011] Furthermore, the first screw and first sleeve in the middle section divide all the first connecting blocks into left and right sections. The left and right sections are symmetrically equipped with second sleeves, bidirectional screws, and adjusting blocks, respectively. The middle part of the bidirectional screw is rotatably limited to the first connecting block at the corresponding position. The two ends of the bidirectional screw are threadedly connected to the second sleeves, and the second sleeves are hinged to the linkage rods at the ends of the section. The adjusting block is fixedly installed at the end of the bidirectional screw. Rotating the adjusting block can drive the bidirectional screw to rotate, causing the second sleeves at both ends to move synchronously towards or away from each other, thereby uniformly driving all the linkage rods in the section to retract or open, and synchronously controlling all the octagonal posts in the section to be locked into the octagonal holes or released from the octagonal holes.

[0012] Furthermore, a rotating block is hinged to the outermost first connecting block; the rotating block has a vertical rotating shaft hole and a rotating rod passes through it, so that the rotating rod can rotate around the rotating block in a horizontal plane; the end of the rotating rod away from the rotating block is hinged to a symmetrical clamping block through a horizontal transverse rotating shaft. The clamping block has upper and lower semi-circular slots spaced apart. The main force-bearing knot of the rope is clamped in the upper semi-circular slot and is under tension. The tail of the rope is wrapped to form a spare knot, and the spare knot is suspended and clamped in the lower semi-circular slot.

[0013] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) The main body of the present invention is composed of multiple sections of first connecting blocks, octagonal columns, and octagonal holes, which are segmented and hinged. Each hinge position forms an independent engagement point. When the mechanism bends and wraps the substrate, the more folded and wrapped sections there are, the more engagement points formed by the octagonal columns and octagonal holes will increase simultaneously, thereby constructing a multi-level mechanical protection structure. Multiple engagement points simultaneously distribute the overall load, forming multiple force protection. Even if one of the hinge points is damaged, the other engagement points can still stably lock the overall bent shape and will not loosen. During the bending adjustment stage, the semi-circular hole, the locking rod, and the first elastic element are used to achieve a 45-degree temporary locking position. Each position can be positioned. Then, the adjusting block, the bidirectional screw, and the second screw sleeve drive the linkage rod to lock all the octagonal columns simultaneously. The pre-locking and final engagement double locking are superimposed. Compared with the traditional integrated rectangular clamp with only a single locking point, the safety redundancy and anti-slip capability are significantly improved. (2) In the middle section of this invention, only one set of first screw and first screw sleeve is set to complete the overall horizontal tightening, eliminate all the splicing gaps of the first connecting blocks at one time, and press the octagonal column and the octagonal hole to avoid slippage under force; at the same time, each first connecting block is opened with threaded holes and equipped with matching screws. When clamping the channel steel, the profile plane can be pressed down vertically by the matching screws to form a horizontal ring plus vertical top pressure bidirectional limiting structure. Compared with the traditional rectangular clamping clamp that only clamps on one side, it does not require long-distance adjustment of screws, and eliminates the vertical and horizontal movement margin of the mechanism, greatly reducing the shaking amplitude of high-altitude operations and improving the clamping stability of the base. (3) The first connecting block on the outer side of both ends of the mechanism is hinged to the rotating block. The rotating rod can rotate horizontally and the clamping block can swing up and down, with a high degree of freedom in adjusting the clamping posture. The clamping block is set with layered upper and lower arc grooves. The main force-bearing knot and spare knot of the rope are fixed separately. Unlike the existing single hanging point hook and single-layer rope groove clamp, it can limit the layered position to prevent the rope from loosening under force. The whole structure integrates profile clamping and rope anti-loosening hanging functions. There is no need to match the rope fixing accessories. The overall structure is compact and convenient for fire rescue operations to disassemble and store. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the core hinge position in this invention; Figure 3 for Figure 2Enlarged view of point A in the middle; Figure 4 This is a structural schematic diagram of the on-site installation and application conditions of the present invention.

[0015] In the diagram: 1-First screw, 2-First threaded sleeve, 3-First connecting block, 31-Octagonal hole, 311-Semicircular hole, 312-Snap-fit ​​rod, 313-First elastic element, 314-Support plate, 315-Restriction through hole, 32-Threaded hole, 33-Matching screw, 4-Rotating block, 5-Octagonal column, 51-Linkage rod, 511-Second threaded sleeve, 512-Bidirectional screw, 513-Adjusting block, 7-Rotating rod, 8-Clamping block, 81-Upper semi-circular groove, 82-Lower semi-circular groove, 9-Rope. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0017] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0018] like Figures 1 to 4As shown, the present invention provides a fire-fighting anti-fall rope fixing mechanism. The main frame of the entire mechanism is assembled from several first connecting blocks 3 arranged end to end. An octagonal post 5 is provided at the joint position of every two adjacent first connecting blocks 3. Octagonal holes 31 of matching specifications are machined on the end faces of the two jointing first connecting blocks 3. The two ends of the octagonal post 5 are respectively inserted into the octagonal holes 31 on both sides, thereby forming a rotatable hinge node. During on-site operation, each first connecting block 3 can be directly bent to adjust the overall contour of the rod. It will automatically lock and limit the position every 45 degrees of rotation, and complete the fitting and bending according to the shape of the fixed steel structure. After the contour adjustment is completed, the polygonal shape of the octagonal post 5 and the octagonal hole 31 interlocks and locks in place. All bending angles can be stably locked and will not spring back or change at will.

[0019] To ensure the entire rod is tightened without any play, only one set of mating first screws 1 and first sleeves 2 is placed at the center of the entire length of the first connecting blocks 3. The two ends of the first screw 1 are hinged to the first connecting blocks 3 at the ends of the left and right sections of the rod, respectively. The first screw 1 and the first sleeve 2 are driven by threaded engagement. Tightening the first sleeve 2 in the forward direction shortens the overall length of the first screw 1, pulling the separated left and right sections of the first connecting blocks 3 closer together, completely pressing and closing the gap between the first connecting blocks 3 and the fixed base, preventing slippage, loosening, and wobbling during rotation.

[0020] Multiple semi-circular holes 311 are formed around the inner wall of one octagonal hole 31, and a through-hole 315 is formed on the side wall of the other octagonal hole 31. A support plate 314, a first elastic element 313, and a slidable locking rod 312 are sequentially installed inside the limiting hole 315. Under normal conditions, the first elastic element 313 continuously pushes the end of the locking rod 312 into the semi-circular hole 311. When the first connecting block 3 is bent, the torsional force applied can compress the first elastic element 313, causing the locking rod 312 to retract and release its locking position. The rod can be bent continuously without pressing the unlocking component separately. Every time it is rotated forty-five degrees, the locking rod 312 will pop out again and lock into the corresponding semi-circular hole 311, realizing temporary positioning segment by segment, and making bending adjustment smooth and effortless.

[0021] Each first connecting block 3 has a pre-drilled threaded hole 32 on its surface, into which a fitting screw 33 is screwed. When the mechanism is clamped around the outside of the horizontal channel steel component, in addition to relying on the first screw 1 and the first screw sleeve 2 in the middle section to horizontally tighten and hold the two sides of the channel steel, the fitting screws 33 at each point can be tightened one by one. The lower end of the fitting screw 33 presses vertically down on the upper surface of the channel steel. The horizontal clamping and vertical pressure provide bidirectional limiting, completely eliminating the front-back and left-right movement and displacement of the entire mechanism, and greatly improving the fixing firmness.

[0022] Each octagonal post 5 is hinged to two linkage rods 51 on its outer side. The ends of the linkage rods 51 at adjacent nodes are hinged to each other, and all the linkage rods 51 are connected end to end to form a synchronous push-pull frame. By retracting or expanding the entire frame of linkage rods 51, all the octagonal posts 5 can be moved synchronously back and forth along the axial direction. Pushing the octagonal post 5 inward will allow it to be inserted into the octagonal hole 31 to complete the angle locking, and pulling the octagonal post 5 outward will disengage the engagement, and the rods will return to a bendable state. The first screw 1 and the first screw sleeve 2 installed in the middle section divide the entire rod into two independent sections, left and right. A locking and adjusting assembly is symmetrically installed at the ends of each section. Each assembly includes a second screw sleeve 511, a bidirectional screw 512, and an adjusting block 513. The bidirectional screw 512 is hinged in the middle to the corresponding first connecting block 3. The bidirectional screw 512 can only rotate in place and cannot move forward or backward. The two ends of the bidirectional screw 512 have opposite directions of rotation and are screwed onto the second screw sleeves 511 respectively. The two second screw sleeves 511 are then hinged to the ends of the outermost linkage rods 51 of this section. The adjusting block 513 is fixed to the end of the bidirectional screw 512 for easy manual turning. Rotating the adjusting block 513 drives the bidirectional screw 512 to rotate, causing the two second screw sleeves 511 at both ends to synchronously converge or move away from each other. This, in turn, causes all the linkage rods 51 of this section to converge or open together, achieving a one-time overall locking or unlocking of all bending nodes in this section, eliminating the need for individual node operation and improving adjustment efficiency.

[0023] On the two end blocks 3 at the very end of the entire rod, there are hinged rotating blocks 4. A vertical through-hole is opened inside the rotating block 4, and the rotating rod 7 is vertically inserted into this through-hole, allowing it to rotate 360 ​​degrees horizontally around the vertical axis. The bottom of the rotating rod 7 is hinged to a clamping block 8 via a horizontal pivot. The clamping block 8 can swing up and down around the horizontal pivot, and its clamping angle can be adjusted freely thanks to the double pivot structure. The clamping block 8 has two arc-shaped slots inside: an upper arc slot 81 and a lower arc slot 82. When actually attaching the rope 9, the main rope knot bearing the tension is inserted into the upper arc slot 81 to tighten and secure it. The excess end of the rope 9 is wrapped and knotted to form a spare rope loop, which is placed in the lower arc slot 82. The main rope knot and the spare rope knot are separated and limited, preventing them from pulling and loosening, effectively ensuring the safety of the rope 9 used in high-altitude firefighting operations.

[0024] The working principle and usage process of this invention are as follows: First, apply a torsional force directly to the first connecting block 3. The torsional force overcomes the elastic force of the first elastic element 313, pushing the locking rod 312 back to disengage from the semi-circular hole 311. Then, rotate each of the first connecting blocks 3 segment by segment to bend them. Every 45 degrees of rotation, the locking rod 312 automatically springs back and engages with the semi-circular hole 311 to achieve temporary locking. The entire assembly is quickly folded and aligned according to the shape of the fixed substrate. After alignment, rotate the adjusting blocks 513 at both ends. The bidirectional screw 512 and the second screw sleeve 511 drive the linkage rod 51 to retract, pulling the octagonal column 5 completely into the octagonal hole 31. The octagonal contour engages and locks all bending angles. Tighten the first screw sleeve 2 in the middle section to shorten and retract the first screw 1, pulling the separated left and right segments of the first connecting block 3 closer together, eliminating all hinge gaps. When fixing the rectangular component, continue to tighten the first screw sleeve 2. The horizontal tightening allows the entire mechanism to encircle and secure the rectangular component. When facing a fixed horizontal channel steel sheet, first use the first screw 1 and the first screw sleeve 2 to horizontally close and fit against the side walls of the channel steel. Then, screw on each of the engagement screws 33 one by one. The engagement screws 33 move vertically down along the threaded hole 32 and press against the plane of the channel steel. The horizontal clamping and vertical pressing provide bidirectional limiting, completely avoiding shaking and displacement during use. Then, adjust the multi-angle posture of the end rotating block 4, rotating rod 7 and clamping block 8, and insert the main force-bearing knot of the rope 9 into the upper half-arc slot 81 to tighten and bear the force. The spare knot formed by the end of the rope 9 is placed in the lower half-arc slot 82 to achieve double-layer limiting and anti-dropping fixation of the rope. After the operation is completed, loosen all the engagement screws 33 in sequence, unscrew the first screw sleeve 2 in the opposite direction to release the clamping force, and operate the adjusting block 513 again to open the linkage rod 51, which drives the octagonal column 5 to exit the octagonal hole 31 to unlock the angle. The entire mechanism can then be bent and folded for storage.

[0025] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A rope fixing mechanism for firefighting operations to prevent ropes from falling off, characterized in that: It includes several first connecting blocks (3) arranged in sequence and an octagonal post (5); each of the two adjacent first connecting blocks (3) has an octagonal hole (31) at the opposite end, and the two ends of the octagonal post (5) are respectively inserted into the octagonal holes (31) of the two adjacent first connecting blocks (3); the adjacent first connecting blocks (3) can rotate around the axis of the octagonal post (5) to adjust their relative bending angle. Each rotation angle is 45 degrees. After the angle is adjusted to the correct position, the octagonal shape of the octagonal post (5) and the octagonal hole (31) are engaged and locked to complete the final positioning and locking of the rotation angle of the adjacent first connecting blocks (3).

2. The fire-fighting operation anti-fall rope fixing mechanism according to claim 1, characterized in that: A set of first screws (1) and first sleeves (2) are provided in the middle section of the arrangement of all the first connecting blocks (3). The two ends of the first screws (1) are rotatably connected to the first connecting blocks (3) on both sides respectively. The first screws (1) and the first sleeves (2) are threaded together. Rotating the first sleeves (2) can drive the first screws (1) to achieve telescopic action, pull the entire string of first connecting blocks (3) to tighten the splicing gap, press the contact surfaces of the octagonal columns (5) and octagonal holes (31) at each place, eliminate the assembly gap, and prevent the octagonal columns (5) from rotating and slipping under stress conditions.

3. The fire-fighting operation anti-fall rope fixing mechanism according to claim 1, characterized in that: In a set of octagonal holes (31) facing each other in two adjacent first connecting blocks (3), one of the octagonal holes (31) has several semi-circular holes (311) spaced apart along the circumference on its side wall, and the other octagonal hole (31) has a limiting through hole (315) on its side wall; the limiting through hole (315) is slidably fitted with a locking rod (312), a first elastic element (313) and a support plate (314); under normal conditions, the first elastic element (313) continuously pushes the locking rod (312) so that the end of the locking rod (312) is locked into the semi-circular hole (311), and a temporary locking position is completed every 45 degrees of rotation; when a rotational torque is applied to the adjacent first connecting block (3), the torque can overcome the elastic force of the first elastic element (313), forcing the locking rod (312) to automatically retract and disengage from the semi-circular hole (311), and the gear angle can be continuously rotated without manual pressing to unlock.

4. The fire-fighting operation anti-fall rope fixing mechanism according to claim 1, characterized in that: The first connecting block (3) has a threaded hole (32), and the fitting screw (33) is threaded into the threaded hole (32). Tightening the fitting screw (33) can press against the adjacent first connecting block (3) to further lock the part to be fixed.

5. The fire-fighting operation anti-fall rope fixing mechanism according to claim 1, characterized in that: The outer wall of the octagonal column (5) is rotatably connected with a linkage rod (51), and the ends of adjacent linkage rods (51) are rotatably hinged to each other; the linkage rods (51) on both sides can be pulled to generate axial displacement of the octagonal column (5) so that all the octagonal columns (5) can be embedded in the octagonal hole (31) and locked, or withdrawn from the octagonal hole (31) to release the engagement limit.

6. The fire-fighting operation anti-fall rope fixing mechanism according to claim 5, characterized in that: The first screw (1) and the first screw sleeve (2) set in the middle section divide all the first connecting blocks (3) into left and right sections. The left and right sections are respectively symmetrically equipped with the second screw sleeve (511), the bidirectional screw (512) and the adjusting block (513). The middle part of the bidirectional screw (512) is rotated and limited to the first connecting block (3) at the corresponding position. The two ends of the bidirectional screw (512) are respectively threaded to the second screw sleeve (511). The second screw sleeve (511) is respectively hinged to the linkage rod (51) at the end of this section. The adjusting block (513) is fixedly installed at the end of the bidirectional screw (512). Rotating the adjusting block (513) can drive the bidirectional screw (512) to rotate, drive the two ends of the second screw sleeve (511) to move synchronously towards or away from each other, and then uniformly drive all the linkage rods (51) in this section to close or open, and synchronously control all the octagonal columns (5) in this section to be locked into the octagonal holes (31) or to be released from the octagonal holes (31).

7. The fire-fighting operation anti-fall rope fixing mechanism according to claim 1, characterized in that: A rotating block (4) is hinged to the outermost first connecting block (3); a vertical rotating shaft hole is opened on the rotating block (4), and a rotating rod (7) is passed through it, so that the rotating rod (7) can rotate around the rotating block (4) in a horizontal plane; a symmetrical clamping block (8) is hinged to the end of the rotating rod (7) away from the rotating block (4) through a horizontal transverse rotating shaft. The clamping block (8) is provided with an upper half-arc slot (81) and a lower half-arc slot (82) spaced apart vertically. The main force-bearing knot of the rope (9) is clamped in the upper half-arc slot (81) and is in a taut state. The tail of the rope (9) is wrapped to form a spare knot, and the spare knot is suspended and clamped in the lower half-arc slot (82).

Images