CN110314293B

CN110314293B - Self-locking rope back fastener

Info

Publication number: CN110314293B
Application number: CN201910465055.2A
Authority: CN
Inventors: 丁乃祥; 丁磊
Original assignee: Individual
Current assignee: Ding Naixiang
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-10-30
Anticipated expiration: 2039-05-30
Also published as: CN110314293A

Abstract

The invention relates to a self-locking rope back buckle, belonging to the field of fire-fighting equipment, comprising a fixed plate, wherein the working surface of the upper part of the fixed plate is sunken, and the lower part of the sunken part is vertical to the fixed plate and is fixed with a hinge rod; including the depression bar, the depression bar is whole The shape, depression bar upper portion corresponds with the sunk part of fixed plate, and the depression bar articulates on the hinge bar, can fix on the rope and move along with the rope together, simple structure, convenient operation to can compress tightly the rope through human dead weight and form the auto-lock, difficult emergence pine phenomenon of taking off.

Description

Self-locking rope back fastener

Technical Field

The invention relates to a self-locking rope back buckle, and belongs to the field of fire-fighting equipment.

Background

Tall buildings, i.e. high-rise buildings, residential buildings over 10 floors and other civil buildings over 24 meters high are called tall buildings. A fire refers to a disaster caused by uncontrolled combustion in time and space. High-rise fires have become one of the major disasters threatening the safety of urban public and social development.

High-rise fire has the characteristics of rapid spread of fire, difficult evacuation and great difficulty in fighting, and once fire catches, the high-rise fire is difficult to control and escape due to complex structure and dense personnel. Countless high-rise fire cases show that the existing high-rise fire rescue means cannot adapt to the construction and development of high-rise buildings. In an urgent situation, helpless trapped people often choose to jump stairs from dense smoke and risk for survival by using a single twisted rope, and most of the trapped people fall to the ground at high altitude to be injured and killed.

The existing common device capable of sliding down a rope is a descent control device, but the existing descent control devices on the market are complex in structure, are relatively troublesome for people without experience, and have life risks if being operated by mistake. And the cost is high, and the cost is not little whether the developer is equipped or bought by the individual.

Disclosure of Invention

According to the defects in the prior art, the technical problems to be solved by the invention are as follows: the self-locking type rope back buckle can be fixed on a rope and runs along with the rope, is simple in structure and convenient to operate, can tightly press the rope through the dead weight of a human body to form self-locking, and is not easy to loose.

The self-locking rope back buckle comprises a fixing plate, wherein the working surface of the upper part of the fixing plate is sunken, and a hinge rod is fixed on the lower part of the sunken part and is vertical to the fixing plate; including the depression bar, the depression bar is whole? The upper part of the pressure lever corresponds to the concave part of the fixed plate, and the pressure lever is hinged on the hinge rod.

The depression bar divide into twitch opening part, presses the splenium, twitch spacing portion and handle portion in proper order, wherein twitch opening part and twitch spacing portion articulate on the hinge rod, press the splenium and be the rope through area between the depressed part on the fixed plate.

The compression bar is formed by bending the metal bar into a whole, so that the cost is low, the strength is high, the number of connecting pieces and parts is small, and the failure rate is low.

Including two hinge assemblies, hinge assembly includes a horizontal sleeve and erects the sleeve, and horizontal sleeve is supporting with the hinge bar, erects the sleeve and is supporting with twitch opening and twitch spacing portion, and horizontal sleeve is fixed with perpendicular sleeve mutually perpendicular, and two hinge assemblies are located the fixed plate both sides respectively, two horizontal sleeves and hinge bar cooperation, and two perpendicular sleeves cooperate with twitch opening and twitch spacing portion respectively. The rotation of the pressure lever is realized, and the drawing of the pressure lever can be realized at the same time.

The fixed plate is a monoblock metal sheet, and the depressed part on the fixed plate is through forming the fixed plate bending type, and is with low costs like this to intensity is high, and connecting piece and spare part are few, and the fault rate is low.

The sunken department of fixed plate sets up sunken concave surface for carry on spacingly to the rope, this concave surface is big with rope area of contact simultaneously, has increased stiction.

The pressing part of the pressing rod is bent outwards, and the bent pressing part corresponds to the concave surface of the concave part and is used for limiting the rope and preventing the rope from deviating.

The spacing ring is fixed to the fixed plate afterbody, and the fixed rope of depression bar tail end is buckled, and the safety rope upper end sets up the becket, and the becket of safety rope passes behind the spacing ring and hangs on the becket, and the terminal fixed band of fleing of safety rope leans on the human dead weight just so can compress tightly the depression bar on the fixed plate, and then compresses tightly the rope, is difficult for the slippage.

The working principle and the process are as follows:

during operation, at first the people wears the band of fleing, then goes up the push rod for the twitch opening tip of depression bar breaks away from perpendicular sleeve, then the rope card that will fall the rope dish and put down presses the portion of pressing the portion and the region of depressed part, then restores to the throne the depression bar, twitch the opening again with perpendicular sleeve cooperation, depression bar and fixed plate restrict the rope in a closed area, prevent that the rope from breaking away from. Then the tail ends of the fixing plate and the pressure lever are pressed tightly by hands, and the rope is further pressed tightly. The upper end of the escape bridle is hung on the rope buckle, the tail end of the pressure rod is pressed down by the gravity of the human body, the rope is tightly extruded by the pressing part on the pressure rod and the concave part on the fixed plate under the lever action, and people fall down along with the rope synchronously.

Compared with the prior art, the invention has the beneficial effects that:

according to the self-locking type rope back buckle, firstly, a person wears an escape bridle, then the push rod is pushed upwards, the end part of the twitching opening part of the pressure rod is separated from the vertical sleeve, then the rope laid down by the rope reversing disc is clamped into the pressing part and the area of the depression, then the pressure rod is reset, the twitching opening part is matched with the vertical sleeve again, and the pressure rod and the fixing plate limit the rope in a closed area to prevent the rope from being separated. Then the tail ends of the fixing plate and the pressure lever are pressed tightly by hands, and the rope is further pressed tightly. The upper end of the escape bridle is hung on the rope buckle, the tail end of the pressure rod is pressed down by the gravity of the human body, the rope is tightly extruded by the pressing part on the pressure rod and the concave part on the fixed plate under the lever action, and people fall down along with the rope synchronously. Simple structure, convenient operation to can compress tightly the rope through human dead weight and form the auto-lock, difficult emergence pine phenomenon.

Drawings

FIG. 1 is a schematic view of an embodiment of the present invention;

FIG. 2 is a bottom view of the embodiment of FIG. 1;

fig. 3 is a schematic structural view of the compression bar of the embodiment shown in fig. 1.

In the figure: 1. a fixing plate; 2. a pressure lever; 2-1, drawing the opening part; 2-2, a pressing part; 2-3, a twitching limit part; 2-4, a handle part; 3. a rope fastener; 4. a limiting ring; 5. a hinged lever; 6. a transverse sleeve; 7. and (5) erecting the sleeve.

Detailed Description

Embodiments of the invention are further described below with reference to the accompanying drawings:

as shown in fig. 1-3, the self-locking type rope back buckle comprises a fixing plate 1, wherein the upper working surface of the fixing plate 1 is concave, and a hinge rod 5 is fixed on the lower part of the concave part and is vertical to the fixing plate 1; including the depression bar 2, is the depression bar 2 the whole? The upper part of the compression bar 2 corresponds to the concave part of the fixed plate 1, and the compression bar 2 is hinged on the hinge rod 5.

The pressing rod 2 is sequentially divided into a twitching opening part 2-1, a pressing part 2-2, a twitching limiting part 2-3 and a handle part 2-4, wherein the twitching opening part 2-1 and the twitching limiting part 2-3 are hinged on the hinge rod 5, and a rope passing area is arranged between the pressing part 2-2 and a concave part on the fixing plate 1.

The twitch opening part 2-1 and the twitch limiting part 2-3 form a certain radian, so that the parts can be prevented from sliding in the vertical sleeve 7.

The compression bar 2 is formed by bending and integrally forming a metal bar, so that the cost is low, the strength is high, connecting pieces and parts are few, and the failure rate is low.

The device comprises two hinge assemblies, wherein each hinge assembly comprises a transverse sleeve 6 and a vertical sleeve 7, the transverse sleeve 6 is matched with a hinge rod 5, the vertical sleeve 7 is matched with a twitching opening part 2-1 and a twitching limiting part 2-3, the transverse sleeve 6 and the vertical sleeve 7 are mutually perpendicular and fixed, the two hinge assemblies are respectively positioned on two sides of a fixed plate 1, the two transverse sleeves 6 are matched with the hinge rods 5, and the two vertical sleeves 7 are respectively matched with the twitching opening part 2-1 and the twitching limiting part 2-3. Therefore, the rotation of the pressure lever 2 is realized, and the drawing of the pressure lever 2 can be realized at the same time.

Fixed plate 1 is a monoblock metal sheet, and the depressed part on the fixed plate 1 is through forming fixed plate 1 bending type, and is with low costs like this to intensity is high, and connecting piece and spare part are few, and the fault rate is low.

The sunken concave surface that sets up of fixed plate 1 is used for spacing the rope, prevents the rope off tracking.

The pressing part 2-2 of the pressure lever 2 is bent outwards, the bent pressing part 2-2 corresponds to the concave surface of the concave part, and meanwhile, the contact area of the concave surface and the rope is large, so that the static friction force is increased.

The fixed spacing ring 4 of 1 afterbody of fixed plate, 2 tail end fixing rope buckles 3 of depression bar, the safety rope upper end sets up the becket bridle, and the becket bridle of safety rope passes behind the spacing ring 4 and hangs on the becket bridle 3, and the terminal fixed band of fleing of safety rope leans on the human dead weight just so can compress tightly depression bar 2 on fixed plate 1, and then compresses tightly the rope, is difficult for the slippage.

The working principle and the process are as follows:

when the escape binding belt works, a person wears the escape binding belt firstly, then the push rod 2 is pushed upwards, so that the end part of the twitching opening part 2-1 of the pressure rod 2 is separated from the vertical sleeve 7, then the rope laid down by the rope reversing disc is clamped into the pressing part 2-2 and the area of the sunken part, then the pressure rod 2 is reset, the twitching opening part 2-1 is matched with the vertical sleeve 7 again, and the pressure rod 2 and the fixed plate 1 limit the rope in a closed area to prevent the rope from being separated. Then the tail ends of the fixing plate 1 and the pressure rod 2 are pressed by hands, and the rope is further pressed. The upper end of the escape bridle is hung on a rope buckle, the tail end of the pressure rod 2 is pressed by the gravity of the human body, the rope is tightly extruded by the pressing part 2-2 on the pressure rod 2 and the concave part on the fixing plate 1 under the lever action, and people fall down along with the rope synchronously.

The invention is matched with an escape strap for use, and the joint of the upper parts of the left supporting band and the right supporting band of the escape strap passes through the limiting ring and then is hung on the rope buckle.

Claims

1. The utility model provides a from locking-type rope back of body knot which characterized in that: comprises a fixed plate (1), wherein the upper working surface of the fixed plate (1) is sunken, and a hinge rod (5) is fixed on the lower part of the sunken part and is vertical to the fixed plate (1); comprises a pressure lever (2), the pressure lever (2) is integrally formed? The upper part of the pressure lever (2) corresponds to the concave part of the fixed plate (1), and the pressure lever (2) is hinged on the hinge rod (5);

the pressing rod (2) is sequentially divided into a twitching opening part (2-1), a pressing part (2-2), a twitching limiting part (2-3) and a handle part (2-4), wherein the twitching opening part (2-1) and the twitching limiting part (2-3) are hinged on the hinge rod (5), and a rope passing area is arranged between the pressing part (2-2) and a concave part on the fixing plate (1);

the twitch opening part (2-1) and the twitch limiting part (2-3) form a certain radian;

the novel hinge assembly comprises two hinge assemblies, each hinge assembly comprises a transverse sleeve (6) and a vertical sleeve (7), the transverse sleeve (6) is matched with a hinge rod (5), the vertical sleeve (7) is matched with a twitching opening part (2-1) and a twitching limiting part (2-3), the transverse sleeve (6) and the vertical sleeve (7) are mutually perpendicular and fixed, the two hinge assemblies are respectively positioned on two sides of a fixed plate (1), the two transverse sleeves (6) are matched with the hinge rods (5), and the two vertical sleeves (7) are respectively matched with the twitching opening part (2-1) and the twitching limiting part (2-3).

2. The self-locking back cord fastener of claim 1, further comprising: the pressure lever (2) is formed by bending a metal lever into a whole.

3. The self-locking back cord fastener of claim 1, further comprising: the fixing plate (1) is a whole metal plate, and the concave part on the fixing plate (1) is formed by bending the fixing plate (1).

4. The self-locking back cord fastener of claim 1, further comprising: the sunken concave surface is arranged at the sunken position of the fixed plate (1).

5. The self-locking back cord fastener of claim 1, further comprising: the pressing part (2-2) of the pressure lever (2) is bent outwards, and the bent pressing part (2-2) corresponds to the concave surface of the concave part.

6. The self-locking back cord fastener of claim 1, further comprising: the fixed spacing ring (4) of fixed plate (1) afterbody, depression bar (2) tail end fixed rope is buckled (3), and the safety rope upper end sets up the becket, and the becket of safety rope passes behind spacing ring (4) and hangs on becket (3), the terminal fixed band of fleing of safety rope.

7. The method of using the self-locking back cord fastener of claim 6, further comprising:

firstly, a person wears an escape bridle, then a push rod (2) is pushed upwards, so that the end part of a twitching opening part (2-1) of the push rod (2) is separated from a vertical sleeve (7), then a rope put down by a rope reversing disc is clamped into a pressing part (2-2) and a sunken part area, then the push rod (2) is reset, the twitching opening part (2-1) is matched with the vertical sleeve (7) again, the press rod (2) and a fixing plate (1) limit the rope in a closed area to prevent the rope from being separated, then the tail ends of the fixing plate (1) and the press rod (2) are pressed by hands, and further the rope is pressed;

the upper end of the escape bridle is hung on a rope buckle, the tail end of the pressure rod (2) is pressed by the self gravity of a human body, the rope is tightly squeezed by the pressing part (2-2) on the pressure rod (2) and the concave part on the fixed plate (1) due to the lever action, and people fall down along with the rope synchronously;