A connecting locking and fixing device suitable for a flexible anti-falling track

Abstract

The utility model belongs to high altitude operation device technical field, concretely is a kind of connecting locking fixing device suitable for flexible anti-falling track, including flexible guide rail, angle steel and compression joint pipe, the compression joint pipe sleeve is connected in the outside of flexible guide rail, the outside fixed seat of compression joint pipe is fixed, the pipe wall of compression joint pipe is located the lower end threaded connection of fixed seat with anti -drop nut, by adjustable position's conical lock catch, adaptation different specifications angle steel on iron tower, realize "one device multiple size compatibility";With conical lock catch linkage structure of 90 degree screw rod, in locking process, produce self-reinforcing clamping force, ensure that the clamping force attenuation rate under wind vibration environment is less than or equal to 3%;Imitate angle steel V-shaped notch design, and the surface adhesion of angle steel is improved to more than 95%, reduce local stress concentration;Through the slope cooperation of V-shaped notch and conical lock catch, reverse self-locking torque is generated under external vibration load, realize "the more vibration, the tighter" effect, and the anti-loosening performance is improved by 200% compared with traditional bolt.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude work equipment technology, specifically a connection, locking and fixing device suitable for flexible anti-fall rails. Background Technology

[0002] In the field of high-altitude operations in power grids, fall arrestors are core equipment for ensuring the safety of personnel working on power transmission line towers. However, the connection and locking mechanisms of traditional steel strand fall arrestors have the following key problems that urgently need to be addressed:

[0003] Insufficient structural adaptability: The existing equipment has a single specification and cannot be compatible with power angle steel structures of different sizes (especially large angle steel of 500kV and above towers). Operators need to carry a variety of fixing accessories, resulting in redundant tools and low efficiency.

[0004] Loosening reliability defects: Conventional bolt fastening structures are prone to loosening under long-term wind vibration and dynamic loads, with a clamping force attenuation rate of ≥15%, posing a risk of falling off and threatening the safety of high-altitude operations;

[0005] Insufficient installation efficiency and portability: Traditional equipment takes 15-25 minutes to install per set and requires multiple tools such as wrenches and torque meters; the overall structure of the equipment is bulky, with each component generally weighing more than 2.5kg, increasing the risk of fatigue during high-altitude operations.

[0006] High manufacturing costs: Traditional devices have complex structures and poor adaptability, requiring multiple sets of parts (such as angle iron clamps, gaskets, etc.), resulting in material waste and increased production costs.

[0007] Therefore, a connection locking and fixing device suitable for flexible anti-fall rails is proposed to solve the above-mentioned problems. Utility Model Content

[0008] The purpose of this invention is to provide a connection locking and fixing device suitable for flexible anti-fall tracks, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a connection locking and fixing device suitable for flexible anti-fall rails, including a flexible guide rail, angle steel and a press-fit pipe, wherein the press-fit pipe is sleeved on the outside of the flexible guide rail, a fixing seat is fixed on the outside of the press-fit pipe, and an anti-loosening nut is threadedly connected to the lower end of the press-fit pipe at the fixing seat.

[0010] The right end of the fixing base has a V-shaped groove, and the side wall of the fixing base has two sets of symmetrical clamping and adjusting adapter holes. The two sets of symmetrical clamping and adjusting adapter holes are equipped with symmetrical right-angle screws. The angle steel is located inside the V-shaped groove. The outside of the two right-angle screws is fitted with a tapered buckle. The tapered buckle is engaged with the angle steel. The outside of the right-angle screw is threaded with a fastener. The outside of the right-angle screw is fitted with a double-hole washer between the tapered buckle and the fastener.

[0011] Preferably, the V-shaped groove is adapted to the corner portion of the angle steel.

[0012] Preferably, both sets of symmetrical tapered buckles are engaged with the side wall of the angle steel.

[0013] Preferably, the locking portion of the conical latch is at an inclined angle.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) Multi-specification angle steel adaptive locking technology: Through the adjustable position conical locking buckle (adjustment range 50-150mm), it can adapt to different specifications of angle steel on the tower (such as L50×5 to L150×16) to achieve "one device for multiple sizes".

[0016] (2) Tightening and anti-loosening mechanism: The 90° screw and conical lock linkage structure is adopted to generate a self-reinforcing clamping force during the locking process (the clamping force increases linearly with the locking stroke) to ensure that the clamping force attenuation rate is ≤3% under wind vibration environment;

[0017] (3) V-groove anti-loosening and stabilizing structure: The V-groove design imitates angle steel, which improves the fit with the surface of angle steel to more than 95%, reducing local stress concentration (contact stress ≤ 50MPa);

[0018] (4) Dynamic anti-loosening characteristics: Through the cooperation of the V-shaped groove and the inclined surface of the conical locking buckle, a reverse self-locking torque is generated under external vibration load, realizing the effect of "the more it vibrates, the tighter it becomes", and the anti-loosening performance is 200% higher than that of traditional bolts;

[0019] (5) Lightweight modular structure design: It adopts a 304 stainless steel stamping one-piece molding structure with a single piece weight ≤1.2kg, which is more than 50% lighter than traditional devices;

[0020] (6) Quick assembly and disassembly modularization: The device consists of three main modules: the main body of the fixed base, the 90° screw, and the conical locking buckle. Only one special wrench is needed, and the installation time is ≤3 minutes / set, which improves efficiency by 80%.

[0021] (7) Low-cost manufacturing process: By combining stamping and welding, the number of parts is reduced by 60%, which is 60% lower than the traditional solution. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 for Figure 1 A magnified schematic diagram of the local structure;

[0024] Figure 3 This is a schematic diagram of the structure of a double-hole gasket;

[0025] Figure 4 A schematic diagram of the mating structure of the fixed base, the conical lock, and the angle steel;

[0026] Figure 5 This is a schematic diagram of the fixed base.

[0027] In the diagram: 1 Flexible guide rail, 2 Angle steel, 3 Press-fit pipe, 4 Fixed base, 5 Anti-loosening nut, 6 Right angle screw, 7 Conical lock, 8 Fastener, 9 Double hole gasket. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Example:

[0031] Please see Figure 1-5 This utility model provides a technical solution:

[0032] A connection locking and fixing device suitable for flexible anti-fall rails includes a flexible guide rail 1, an angle steel 2 and a crimping tube 3. The crimping tube 3 is sleeved on the outside of the flexible guide rail 1. A fixing seat 4 is fixed on the outside of the crimping tube 3. The tube wall of the crimping tube 3 is threadedly connected to the lower end of the fixing seat 4 with an anti-loosening nut 5.

[0033] The right end of the fixed base 4 has a V-shaped groove. The side wall of the fixed base 4 has two sets of symmetrical clamping and adjusting adapter holes. The two sets of symmetrical clamping and adjusting adapter holes are equipped with symmetrical right-angle screws 6. Angle steel 2 is located inside the V-shaped groove. The outside of the two right-angle screws 6 is fitted with a conical locking buckle 7. The conical locking buckle 7 has a "V" shape structure, which provides oblique clamping force so that it can lock the angle steel 2 of different specifications. The conical locking buckle 7 has the effect of becoming more secure as it is tightened. The conical locking buckle 7 is snapped into the angle steel 2. The outside of the right-angle screw 6 is threaded with a fastener 8. The outside of the right-angle screw 6 is fitted between the conical locking buckle 7 and the fastener 8. A double-hole washer 9 is fitted between the conical locking buckle 7 and the fastener 8. The double-hole washer 9 connects the upper and lower screws that can move axially, reducing their degree of freedom. This makes it easy to install and position at high places, and achieves quick installation and prevents detachment.

[0034] The upper part of the tower requires a fixed position. The fixing seat 4 is fixed to the angle steel 2 by the angle steel locking clamp, and the other end is fixed to the lower end of the tower base. The two ends of the flexible guide rail 1 are pre-pressed into the pressure pipe 3. The flexible guide rail 1 and one end of the pressure pipe 3 are installed to the upper part of the tower, installed and inserted into the fixing seat 4, and the anti-loosening nut 5 is installed. Finally, the flexible guide rail 1 is installed downward along the tower material to the connecting fixing seat body at the lower end of the tower base. Similarly, the fixing of the lower fixing seat 4 is the same as that of the upper fixing. The flexible guide rail 1 with the pressure pipe 3 is inserted into the mounting hole of the fixing seat 4 and the anti-loosening nut 5 is installed.

[0035] The V-shaped groove is compatible with the corner part of angle steel 2.

[0036] Both sets of symmetrical conical latches 7 are engaged with the side wall of angle steel 2.

[0037] The locking part of the conical lock 7 is at an inclined angle, which is suitable for angle steel 2 of different sizes.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connecting locking fixing device suitable for a flexible anti-falling rail, comprising a flexible guide rail (1), an angle steel (2) and a crimping tube (3), characterized in that, The crimping tube (3) is sleeved on the outside of the flexible guide rail (1), and a fixing seat (4) is fixed on the outside of the crimping tube (3). The tube wall of the crimping tube (3) is threadedly connected to the lower end of the fixing seat (4) with an anti-loosening nut (5). The right end of the fixed base (4) is provided with a V-shaped groove. The side wall of the fixed base (4) is provided with two sets of symmetrical clamping adjustment adapter holes. The two sets of symmetrical clamping adjustment adapter holes are provided with symmetrical right-angle screws (6). The angle steel (2) is located inside the V-shaped groove. The two right-angle screws (6) are both sleeved with tapered buckles (7). The tapered buckles (7) are engaged with the angle steel (2). The right-angle screws (6) are threaded with fasteners (8). The right-angle screws (6) are sleeved with double-hole washers (9) between the tapered buckles (7) and the fasteners (8).

2. The connecting and locking fixing device for flexible arresting rail according to claim 1, characterized in that: The V-shaped groove is adapted to the corner portion of the angle steel (2).

3. The connection locking and fixing device for flexible anti-fall rails according to claim 1, characterized in that: Both sets of symmetrical tapered buckles (7) are engaged with the side wall of the angle steel (2).

4. A connection locking and fixing device suitable for flexible anti-fall rails according to claim 1, characterized in that: The locking portion of the conical buckle (7) is at an inclined angle.

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