CN211611380U - Perpendicular lifeline - Google Patents

Abstract

A vertical lifeline is characterized in that two supports are respectively fixed at the upper end and the lower end of a wall body or a ladder, a steel wire rope is connected onto the supports, the upper end of a steel wire rope tensioner is connected onto the support at the upper end, the steel wire rope is fixed at the lower end of the steel wire rope tensioner through a steel wire rope clamp, a guide support is fixedly connected between the two supports, a falling brake is connected onto the steel wire rope in a sliding mode, a C-shaped hook is connected onto the falling brake, a friction type buffer is connected onto the C-shaped hook, a steel wire rope winding and unwinding device is connected to the lower end of the steel wire rope, an adjusting screw rod. The utility model discloses an each anti-falling device and two-stage buffer organic combination, the synergism can make things convenient for the operation personnel work, and can the reliable assurance person that falls safety not receive the injury of system, can effectively avoid the braking to strike and cause the secondary damage to the personnel that fall. The utility model discloses can extensively be applicable to the safety protection of high altitude construction such as building, petrochemical industry, electric power, engineering such as bridge.

Description

Perpendicular lifeline

Technical Field

The utility model relates to a high altitude protection system that falls specifically is a perpendicular lifeline.

Background

The high-altitude operation is high in danger, and safety protection measures for preventing high-altitude falling are very important, and because the high-altitude falling threatens life, a system formed by combining high-altitude falling protection devices is generally called as a lifeline. The lifeline is divided into a vertical lifeline and a horizontal lifeline. The vertical lifeline is a high-altitude falling protection system which can be safely moved or operated by an operator in the vertical direction, and once the operator falls in the working and moving processes, the vertical lifeline can ensure that a falling person is suspended to stop falling. Because high-altitude operation relates to multiple industries and complex conditions, a large number of safety devices are designed for the high-altitude operation, the patentee also applies for a plurality of patents such as a 'steel rope take-up and pay-off device for vertical lifeline' patent number 201920086081.X, a 'steel rope tensioner for vertical lifeline' patent number 201920085434.4, a 'friction type buffer' patent number 201920085433.X, a 'folding ladder stand for vertical lifeline' patent number 201920086750.3 and a 'quick-assembling type falling brake' patent number 201821538283.5, and the single-function safety devices are mostly used singly or simply combined for use. Since lifelines are not simply a means of preventing a person from falling, it is also desirable to ensure that the person's body and life are not injured. The existing single-function safety device is used independently or combined simply, and the personal safety of a falling person is difficult to be ensured to be not hurt to the maximum extent. The patent technology of patent number 201320264234.8 entitled "a steel wire rope lifeline buffer device" disclosed in Chinese patent literature, the lifeline only adopts a buffer as the buffer for the falling force of a falling person, the document does not disclose the specific structure of the buffer, does not know whether the structure of the buffer can effectively buffer the falling impact force of the falling person, does not relate to the problems of winding, unwinding, tensioning and braking of a falling steel wire rope, and has the problems of incomplete protection and unreliability for the falling person.

Disclosure of Invention

The utility model aims at overcoming current lifeline technique and having buffer strength not enough, the function singleness, the combination is unreasonable, to the imperfect, unreliable problem of falling person's protection, provides one kind and makes things convenient for operation personnel work, and can systematically be reliable ensure that the person of falling safety is not injured the technical scheme of a perpendicular lifeline.

The utility model discloses technical scheme: a vertical lifeline is characterized in that the upper end of a steel rope tensioner is connected to a support at the upper end, the steel rope is fixed to the lower end of the steel rope tensioner through a steel rope clamp, a guide support is fixedly connected between the two supports, a falling brake is connected to the steel rope in a sliding mode, a C-shaped hook is connected to the falling brake, a friction type buffer is connected to the C-shaped hook, a steel rope winding and unwinding device is connected to the lower end of the steel rope, an adjusting screw is arranged at the other end of the steel rope winding and unwinding device, and the other end of the adjusting screw is connected to the support at the lower end in a threaded mode.

The guide support is structurally characterized in that a shaft is arranged on the support and is rotatably connected with a guide wheel.

The ladder stand is named as a folding ladder stand for a vertical lifeline, and has a structure of patent number 201920086750.3.

The cable tensioner is the structure named "a cable tensioner for vertical lifeline", patent No. 201920085434.4.

The fall arrester is a structure named as 'a quick-assembly type fall arrester', and has the patent number of 201821538283.5.

The friction type buffer is named as a friction type buffer and has a structure of patent number 201920085433.

The steel rope winding and unwinding device is named as a steel rope winding and unwinding device for a vertical lifeline, and has a structure of patent number 201920086081.

Falling from high altitude is a multiple accident in the field of high altitude operation, and the consequence is very serious once the falling occurs. Since the worker must have a range of motion when working at height, the length of the harness is usually greater than the vertical distance from the fixed suspension point to the center of gravity of the person. In the event of a fall, the falling person has a free fall motion process with a rapid rise in fall speed from the time the fall is suspended by the fall arrest device to the time it is stopped. The huge impact force generated when the safety belt is forcibly suspended and stopped can cause secondary damage to falling personnel. According to medical research data, there is a limit to the acceleration that a human body can withstand, and when the magnitude of the acceleration is large enough, a subject may lose consciousness, and twitch 40% of all unconscious people. Conventionally, the acceleration of gravity g is used as a reference for comparison, and the loss-of-perception acceleration value is 5 g. In terms of such tolerance, individuals vary greatly, and the acceleration limit values tolerable by a professionally trained astronaut are far more than normal. The utility model discloses a key feature is with the biggest buffering acceleration that general ordinary person of falling can bear as the buffer capacity of the perpendicular lifeline of foundation design, has taken reliable buffer measure, makes the utility model discloses a buffering acceleration maximum value is less than 5 g.

The utility model discloses the most important innovation point has adopted two-stage buffer's organic combination, and one-level buffer has disposed the friction buffer in the lifeline, and second level buffer has adopted steel cable tensioning ware, through the two-stage buffering, the utility model discloses a buffer capacity can avoid falling to strike and cause the secondary injury to the personnel that fall completely. The friction buffer of the utility model is suspended by the connecting body, when in use, most of the safety belts are positioned outside the safety belt inlet of the shell, and people or other objects are connected to the end part of the safety belt positioned outside the safety belt outlet; when a person or other objects suddenly fall, the end part of the safety belt pulls down the safety belt under the action of gravity, and the connecting body fixes the positions of the shell and the cover plate, so that only the safety belt moves downwards, the safety belt needs to sequentially bypass the safety belt inlet, the buffering pressure head, the buffering columns and the safety belt outlet during movement, an initial friction force is generated between the buffering pressure head and the inner wall of the shell for the safety belt during the movement of the safety belt, and the initial friction force can be amplified when sequentially bypassing the buffering columns, so that a reverse buffering effect is realized on the descending person or object; wherein because the size of this buffer power is stable relatively, can adjust the buffering intensity according to the size of frictional force simultaneously, consequently can control the maximum value of buffering acceleration, buffering effect is good.

The utility model discloses a set up steel cable tensioning ware on wire rope's top, this tensioning ware built-in belleville spring can also play the cushioning effect with the wire rope tensioning. The position of connecting rod is fixed, and casing and the end cover of being connected with wire rope are movable, and when the personnel fall, the steel cable receives decurrent stress, and the end cover conducts spacing portion with the effort through dish spring leaf, and external rigidity's structure is conducted to rethread connecting rod and tensioning nut, and this in-process dish spring leaf takes place elastic deformation to the effect of buffering has been played.

The utility model discloses a fall stopper use with the wire rope cooperation of vertical extension, can hang the personnel that fall on wire rope, prevent the bodily injury that falls. Under the condition that the total braking force is the same, the stress borne by the braking points is relatively dispersed, the stress state of the braking component and the steel wire rope is improved, the service life of the falling brake and the steel wire rope is prolonged, and the safety during high-altitude operation is improved.

Conventional wire rope's rope clip can leave unrecoverable deformation indentation on the steel cable surface after fixed steel cable tip, the influence stopper that falls is along the slip of steel cable, the utility model discloses a steel cable winding and unwinding ware has wire rope clip's whole functions, can not produce the indentation on the steel cable surface when the characteristics press from both sides tight steel cable, can be equipped with the steel cable according to the maximum length that probably uses from this, same root steel cable can be at different high used repeatedly promptly, just so can the using value of full play steel cable, reduce the manpower and the time of changing the steel cable, reduce the use cost of steel cable.

The ladder body of a plurality of sections of the ladder stand of the utility model adopts a positive and negative folding structure, has small storage size, can be conveniently moved and is convenient for transition transportation; the hanging hook and the hoisting piece for installation and fixation are arranged, and the installation, the disassembly and the fixation are more convenient and faster. Meanwhile, the steel rope of the vertical lifeline connected with the first connecting piece and the second connecting piece is fixed at the outer side part of the pedal rod, so that a worker can be prevented from being caught by the steel rope in the up-and-down process, and the safety is improved. When needed, the utility model can be directly fixed on the wall.

The utility model discloses it is various with the perpendicular steel cable of the patent technology product of multiple anti-falling device such as the steel cable winding and unwinding device that this patentee's steel cable tensioning ware, fall stopper, friction buffer and can adjust steel cable length, the support of fixed steel cable etc. makes up into a function, and safety measure is complete, protection safe and reliable, convenient to use, and with low costs perpendicular protection system. The utility model discloses an each anti-falling device and two-stage buffer organic combination, the synergism can make things convenient for the operation personnel work, and can the reliable assurance person that falls safety not receive the injury of system, especially can effectively avoid the braking to strike and cause the secondary damage to the personnel that fall. The utility model discloses calculate rigorously, reasonable in design, the combination is ingenious, convenient to use, and the cost of manufacture is low, can extensively be applicable to the safety protection of high altitude construction such as building, petrochemical industry, electric power, engineering such as bridge, is a neotype perpendicular lifeline.

Drawings

Figure 1 is a schematic perspective view of the structure of the present invention on a wall

FIG. 2 is a front view of the wall structure

Figure 3 is a schematic perspective view of the structure of the folding ladder stand

Figure 4 is a front view of the structure of the folding ladder

FIG. 5 is a schematic perspective view of the folding ladder stand of the present invention

FIG. 6 is a schematic sectional view of the structure of the cable tensioner of the present invention

Figure 7 is a schematic perspective view of a fall arrester structure of the utility model

FIG. 8 is a schematic perspective view of a friction type damper according to the present invention

FIG. 9 is a schematic perspective view of the steel cable winding and unwinding device of the present invention

In the figure: 1 is a wall body, 2 is a support, 3 is a steel rope tensioner, 4 is a steel rope clamp, 5 is a falling brake, 6 is a C-shaped hook, 7 is a friction type buffer, 8 is a guide support, 9 is a steel rope winding and unwinding device, 10 is an adjusting screw rod, 11 is a steel rope, and 12 is a folding ladder.

Detailed Description

A vertical lifeline, fix two support bases 2 on the upper and lower both ends of the vertical direction of the ladder stand 12 or wall body 1 separately, connect the upper end screw thread of the steel cable tensioner 3 on support base 2 of the upper end, the lower end of the steel cable tensioner 3 fixes the wire rope 11 on the lower end of the steel cable tensioner with the universal wire rope clamp 4, connect the guide support base 8 fixedly between two support bases 2, the structure of the guide support base is, there are axles on the support base, connect the guide pulley rotatably on the axle; a falling brake 5 is connected on the steel wire rope in a sliding way, a C-shaped hook 6 special for engineering sold in the market is connected on the falling brake, a friction type buffer 7 is connected on the C-shaped hook, a steel wire rope winding and unwinding device 9 is connected at the lower end of the steel wire rope, an adjusting screw rod 10 is arranged at the other end of the steel wire rope winding and unwinding device, and the other end of the adjusting screw rod is connected on a support 2 at the lower end in a threaded way.

The ladder stand 12 is a structure named as a folding ladder stand for a vertical lifeline, and is disclosed in patent number 201920086750.3. The cable tensioner 3 is a structure named "a cable tensioner for vertical lifeline", patent No. 201920085434.4. The fall arrester 5 is a structure named as a quick-assembly type fall arrester, and has a patent number 201921538283.5. The friction type buffer 7 is named as 'a friction type buffer', and has a structure of patent number 201920085433. X. The steel rope winding and unwinding device 9 is named as a steel rope winding and unwinding device for a vertical lifeline, and has a structure of patent number 201920086081.

When in use, the friction type buffer is connected with an operator. When the operator accidentally falls from high altitude, the falling brake instantaneously acts to lock the steel rope, so that the operator is suspended in the air to stop falling, and the protection effect is achieved. In order to prevent the huge impact force from producing secondary injury to the falling personnel when the falling brake is braked, the utility model discloses specially-made friction type buffer is provided. The buffer generates initial friction force by a pressure head pressurized by a spring, and the initial friction force is amplified by a special buffer pin shaft device to generate enough buffer force required. The buffering force can be preset and basically kept unchanged in the whole buffering process, and the buffering device has excellent buffering characteristics and can obtain the optimal buffering effect. Has the characteristics of safety, reliability, small volume and light weight.

Claims (2)

1. A vertical lifeline is characterized in that the upper end of a steel rope tensioner (3) is connected to a support (2) at the upper end, a steel rope (11) is fixed to the lower end of the steel rope tensioner through a steel rope clamp (4), a guide support (8) is fixedly connected between the two supports, a falling brake (5) is connected to the steel rope in a sliding mode, a C-shaped hook (6) is connected to the falling brake, a friction type buffer (7) is connected to the C-shaped hook, a steel rope winding and unwinding device (9) is connected to the lower end of the steel rope, an adjusting screw rod (10) is arranged at the other end of the steel rope winding and unwinding device, and the other end of the adjusting screw rod is in threaded connection with the support (2) at the lower end.

2. A vertical lifeline as defined in claim 1, wherein the guide support (8) is configured so that the support is provided with a shaft to which the guide wheel is rotatably connected.

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