CN115591147A - Falling anti-suffocation safety belt and use method thereof - Google Patents

Abstract

The invention relates to a falling anti-suffocation safety belt and a use method of the safety belt, wherein the safety belt comprises a safety belt body and at least two safety ropes, the two safety ropes are respectively connected with the safety belt body, the two safety ropes are hung on a high-altitude hanging point, when an operator falls, the two safety ropes are not located on the same vertical plane, so that an included angle alpha is formed on the plane where the two safety ropes are located, the safety belt body is transversely or obliquely hung when the operator is hung by the safety ropes after falling, the body is not overlapped with the vertical direction, the safety belt cannot be lifted to the chest part of a human body, and the problems that the falling operator is difficult to breathe and even suffocates and dies during high-altitude operation are avoided.

Description

Falling anti-suffocation safety belt and use method thereof

Technical Field

The invention relates to the technical field of safety belts, in particular to a falling anti-suffocation safety belt and a use method of the safety belt.

Background

The safety belt is individual protective equipment for preventing an operator from being safely suspended after falling. The safety belt is required to be used correctly for the high-altitude operation, which not only is a mandatory requirement of safety regulations, but also is an effective life-saving measure for the high-altitude operation of power workers.

The whole-body formula that present high altitude construction personnel used mostly hangs the safety belt that falls, during the use, need hang the safety rope of safety belt configuration on high altitude suspension point, when the operation personnel carelessly fall, the safety rope hangs the human body in the air, nevertheless simultaneously because action of gravity, the people can the landing downwards, and simultaneously, the safety belt also can be promoted to human thorax part with the part that the safety rope is connected to tighten human thorax, cause personnel to breathe the difficulty, can send personnel to suffocate the death even.

Disclosure of Invention

Therefore, the invention provides a falling anti-suffocation safety belt and a use method thereof, aiming at the problem that a falling person is difficult to breathe because the chest cavity is tightened by the safety belt.

A fall anti-asphyxia harness comprising:

a seat belt body; and

the safety ropes at least comprise two safety ropes, the two safety ropes are respectively connected with the safety belt body, and the two safety ropes are respectively hung on high-altitude hanging points;

after the worker falls, the plane where one safety rope is located is a first plane, the plane where the other safety rope is located is a second plane, and an included angle is formed between the first plane and the second plane.

In one embodiment, the fall anti-asphyxia harness further comprises:

one end of each of the two safety ropes is connected with the two first safety buckles respectively;

and the other ends of the two safety ropes are respectively connected with the second safety buckle.

In one embodiment, the safety line comprises:

one end of the safety rope body is tied to the first safety buckle;

the safety hook is arranged at the other end of the safety rope body and is connected with the second safety buckle in a buckling mode.

In one embodiment, the seatbelt body includes:

waist protection; and

the waist support is positioned above the auxiliary protective belt, and a connecting belt is arranged at the joint of the waist support and the auxiliary protective belt.

In one embodiment, the number of the second safety buckles is at least two, and the two second safety buckles are arranged on the safety belt body at intervals along the length direction of the waist support.

In one embodiment, the auxiliary protection belt comprises a leg belt, one end of the connecting belt is arranged on the leg belt, the other end of the connecting belt is arranged on the waist support, the two first safety buckles are arranged on two sides of the waist support and/or the leg belt, and the second safety buckle is arranged on the front side of the waist support and/or the connecting belt.

In one embodiment, the seat belt body further includes:

the shoulder straps are positioned above the waist support, first clamping rings are arranged on the front sides of the shoulder straps, and second clamping rings are arranged on the front sides of the waist support and/or the leg straps;

the chest buckle is connected with the first snap ring and the second snap ring in a buckling mode.

In one embodiment, the leg strap further comprises a reinforcing connecting strap, one end of the reinforcing connecting strap is tied to the second snap ring, and the other end of the reinforcing connecting strap is fixedly arranged on the leg strap.

In one embodiment, the seat belt body further includes: the back protecting belt comprises a back protecting belt body, wherein a third clamping ring is arranged on the back side of the shoulder belt body, a fourth clamping ring is arranged on the back side of the waist protecting belt body, one end of the back protecting belt body is bound on the third clamping ring, and the other end of the back protecting belt body is bound on the fourth clamping ring.

The application also provides a safety belt using method, which comprises the following steps:

providing a safety belt body provided with at least two safety ropes;

connecting the two safety ropes with the safety belt body respectively;

respectively hanging the two safety ropes on high-altitude hanging points;

when an operator falls, the plane where any one safety rope is located is a first plane, the plane where the other safety rope is located is a second plane, and an included angle is formed between the first plane and the second plane.

The anti-suffocation safety belt comprises a safety belt body and at least two safety ropes, when the anti-suffocation safety belt is used, the two safety ropes are respectively connected with the safety belt body, the two safety ropes are hung on a high-altitude hanging point, when an operator falls, the two safety ropes are not located on the same vertical plane, so that an included angle is formed between planes where the two safety ropes are located, the operator is hung by the safety ropes after falling, the safety belt body is hung transversely or obliquely, the body can be enabled not to be overlapped with the vertical direction, the safety belt can not be lifted to a chest part of a human body, the breathing difficulty of the falling operator during high-altitude operation is avoided, and even the death problem due to suffocation is solved.

Drawings

Figure 1 is a diagram illustrating the use of a fall anti-asphyxia harness according to some embodiments of the present application in one direction;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

figure 3 is another directional use effect diagram of a fall anti-asphyxia harness according to some embodiments of the present application;

FIG. 4 is a schematic perspective view of a seat belt body with a safety line removed according to some embodiments of the present application;

FIG. 5 is an enlarged view of a portion of FIG. 4 at B;

FIG. 6 is an enlarged partial schematic view at C of FIG. 4;

FIG. 7 is a schematic perspective view of a safety line according to some embodiments of the present application;

figure 8 is a perspective view of a fall anti-asphyxia harness according to some embodiments of the present application.

Reference numerals:

10. a safety cord; 110. a safety line body; 120. a safety hook is arranged; 130. an adjusting plate; 20. a seat belt body; 210. waist protection; 2110. a second snap ring; 2120. a fourth snap ring; 220. a leg strap; 2210. a connecting belt; 2220. reinforcing the connecting band; 230. shoulder straps; 2310. a first snap ring; 2320. a third snap ring; 240. a chest buckle; 250. a back protection belt; 30. a first safety buckle; 40. a second safety buckle; 50. an operator; 60. a wire; alpha, and the included angle between the first plane and the second plane.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, fig. 1 is a diagram illustrating an effect of a fall anti-asphyxia safety belt according to some embodiments of the present application in one direction. Figure 2 is an enlarged view of a portion of figure 1 at a, and figure 3 shows the effect of the crash anti-asphyxia harness of some embodiments of the present application in another direction.

The application provides a safety belt that stifles is prevented in falling, including safety belt body 20, two at least safety ropes 10, two safety ropes 10 are connected with safety belt body 20 respectively, and two safety ropes 10 hang respectively on high altitude suspension point, and after the operating personnel 50 fall down, one of them safety rope 10 place plane and another safety rope 10 place plane are provided with contained angle alpha, and contained angle alpha satisfies: alpha is more than 0 and less than 90 degrees.

When the falling anti-suffocation safety belt is used, the two safety ropes 10 are respectively connected with the safety belt body 20, compared with a single safety rope 10, the two safety ropes 10 can simultaneously bear the pulling force of a pulling operator 50, so that the limit of the pulling force borne by the safety ropes 10 is larger, meanwhile, the two safety ropes 10 also enable the borne pulling force to be more uniform, and the service life of the safety ropes 10 is further prolonged; the safety belt body 20 and the safety rope 10 can be transported together by directly connecting the safety rope 10 to the safety belt body 20, so that the transportation cost of the falling anti-asphyxia safety belt is reduced, then two safety ropes 10 are hung on an overhead hanging point, the overhead hanging point is often configured to be any point on the lead 60, and also can be configured to be a point on other objects on which the safety ropes 10 can be hung according to actual use requirements, further, the two safety ropes 10 are hung on the lead 60, the pressure intensity of the pressure intensity from the lead 60 is smaller than that of the chest intensity of the pressure intensity from the lead 60 of a single safety rope 10, so that the safety rope 10 is less prone to wear and break at the hanging position during daily use and when a person falls, when the person 50 falls, because the two safety ropes 10 are not located on the same plane, an included angle alpha is formed between the planes of the two safety ropes 10, so that the person 50 is hung by the safety rope body 20 and the person 50 can be lifted transversely or obliquely, the body can not be overlapped with the vertical direction, further, the chest of the person can not be pulled downwards to cause the problem that the person can not be lifted to the person to fall, and even lifted to the person who falls, thereby avoiding the problem of the existing safety belt that the person who falls.

In one embodiment, the fall anti-suffocation safety belt further comprises at least two first safety buckles 30 and at least one second safety buckle 40, one end of each of the two safety ropes 10 is connected with the two first safety buckles 30, and the other end of each of the two safety ropes 10 is connected with the second safety buckle 40.

Specifically, through detaining safety rope 10 both ends respectively in first safety knot 30, second safety knot 40 connection, not only can make safety rope 10 carry out the dismouting more easily, also can make safety rope 10's maintenance and change more convenient, further can also let two safety ropes 10 be difficult to appear fracture and wearing and tearing when daily use, thereby protected operation personnel 50 to make it avoid falling to the ground on lead to appearing falling into the injury.

Referring to fig. 4 to 6, fig. 4 is a schematic perspective view of a seat belt body 20 with a seat belt 10 removed according to some embodiments of the present disclosure, fig. 5 is a partially enlarged view of a portion B in fig. 4, and fig. 6 is a partially enlarged view of a portion C in fig. 4.

In one embodiment, the seat belt body 20 includes a waist support 210 and an auxiliary protection belt, the waist support 210 is located above the auxiliary protection belt, and a connection strip 2210 is disposed at the connection position of the waist support 210 and the auxiliary protection belt.

Optionally, the auxiliary protection belt includes a leg belt 220 for protecting the lower part of the worker 50, and the auxiliary protection belt may be configured as a pedal or other auxiliary belt according to the actual use requirement. Specifically, the auxiliary protection belt is configured as a leg belt 220, and the connection belt 2210 can be fixed on the leg belt 220 and the waist support 210 in a manner of snap-fastening or direct binding.

Optionally, how to set the connection belt 2210 and how many connection belts 2210 specifically may be designed according to actual requirements, which is not limited in the present application, specifically, two connection belts 2210 are respectively disposed on the front side and the rear side of the leg belt 220, so that after the leg belt 220 and the waist support 210 are connected, the stress is more uniformly distributed on the whole waist support 210 and the whole leg belt 220, and is not easily broken.

In one embodiment, the number of the second safety buckles 40 is at least two, and two second safety buckles 40 are arranged on the belt body 20 at intervals along the length direction of the waist support 210.

Specifically, at least two second safety buckles 40 can be arranged, and compared with the arrangement of one second safety buckle 40, the arrangement of the plurality of second safety buckles 40 has a better effect of fixing the safety rope 10, and meanwhile, the two second safety buckles 40 can share larger pulling force, so that the second safety buckles 40 are less prone to damage or fall when falling.

In one embodiment, the auxiliary protection belt comprises a leg belt 220, a connection belt 2210 has one end disposed on the leg belt 220 and the other end disposed on the waist support 210, two first safety buckles 30 disposed on both sides of the waist support 210 and/or the leg belt 220, and a second safety buckle 40 disposed on the front side of the waist support 210 and/or the connection belt 2210.

Specifically, the auxiliary protective belt can also be configured as a pedal or other auxiliary belts according to actual requirements, and what kind of auxiliary protective belt is specifically configured can be designed according to actual use requirements, which is not limited in the present application.

Alternatively, two first safety buckles 30 may be selectively disposed on both sides of the waist support 210 or the leg strap 220, or the first safety buckles 30 may be disposed on the waist support 210 and the leg strap 220, respectively; preferably, the two first safety buckles 30 are disposed on both sides of the waist support 210, and the leg strap 220 needs to be designed in consideration of leg movement, so that generally, the protection capability and the anti-pulling capability of the leg strap 220 are relatively weak, and therefore, the present application provides the two second safety buckles 40 on the waist support 210, so that the installation strength of the first safety buckles 30 can be increased better, and the danger due to the falling-off of the first safety buckles 30 is not easily generated when the worker 50 falls.

More specifically, two second safety buckles 40 may be selectively disposed at the front side of the waist support 210, the connection belt 2210, or the leg belt 220, or at the front side of any two of the leg belt 220, the connection belt 2210, and the waist support 210, and specifically, the second safety buckle 40 is disposed at the connection position of the connection belt 2210 and the waist support 210, so that the pulling force on the second safety buckle 40 can be decomposed to the waist support 210 and the connection belt 2210, and further, when the worker 50 falls, the safety rope 10 pulls up the second safety buckle 40 and simultaneously pulls up the connection belt 2210 connected to the second safety buckle 40, thereby driving the leg belt 220, so that the worker 50 can keep a state waiting for rescue in a sitting posture, further reducing the physical consumption when the worker 50 falls, and reducing the rescue cost.

Referring to fig. 7 and 8, fig. 7 is a schematic perspective view of a safety rope 10 according to some embodiments of the present application, and fig. 8 is a perspective view of a fall anti-asphyxia safety belt according to some embodiments of the present application.

In one embodiment, the safety rope 10 includes a safety rope body 110 and a safety hook 120, one end of the safety rope body 110 is tied to the first safety buckle 30, the other end of the safety rope 10 is provided with the safety hook 120, and the safety hook 120 is connected with the second safety buckle 40 in a buckling manner.

Specifically, through tying up safety rope body 110 one end on first safety buckle 30, be connected safety hook 120 with second safety buckle 40 lock, make safety rope 10 and safety belt body 20 can dismantle and be connected, both can guarantee the installation intensity of safety rope 10, also can make the safety belt more simple and convenient when using and maintaining, more specifically, safety rope 10 is configured into the polyamide fibre safety rope, still be provided with article font regulating plate 130 on the safety rope 10, a length for adjusting safety rope 10, make safety rope 10 in the in-process that uses, can adjust length according to the in-service use demand, the commonality of the safety belt that prevents stifling that falls has been increased.

Referring to fig. 4 and 5 again, in one embodiment, the seat belt body 20 further includes a shoulder strap 230 and a chest buckle 240, the shoulder strap 230 is located above the waist support 210, a first snap ring 2310 is disposed on a front side of the shoulder strap 230, a second snap ring 2110 is disposed on a front side of the waist support 210 and/or the leg strap 220, and the first snap ring 2310 and the second snap ring 2110 are buckled and connected through the chest buckle 240.

Specifically, the anti-asphyxia falling safety belt provided with the shoulder strap 230 can protect the shoulder from being protected even when falling, optionally, the second snap ring 2110 can be provided on the front side of the waist support 210 or the leg strap 220, or alternatively, the second snap ring 2110 can be provided on the front side of the waist support 210 and the leg strap 220, preferably, the first snap ring 2310 is provided on the front side of the shoulder strap 230, the second snap ring 2110 is provided on the waist support 210, and the first snap ring 2310, the second snap ring 2110 and the chest buckle 240 are fixedly connected, so that the connection position can be set aside from the chest, and on the premise of being convenient to wear, sufficient connection strength can be ensured, so that the anti-asphyxia falling safety belt can better protect the worker 50 when falling.

More specifically, when falling, first snap ring 2310 and second snap ring 2110 will be pressure decomposition to shoulder strap 230 and waist support 210 on for chest department can not bear huge pressure, simultaneously, connect first snap ring 2310 and second snap ring 2110 through chest buckle 240, also make shoulder strap 230 when guaranteeing mounting strength and joint strength, can wear and take off by operation personnel 50 more conveniently, make the universality and the protectiveness that fall and prevent stifling safety belt stronger.

In one embodiment, the leg strap 220 further comprises a reinforcement connection strap 2220, one end of the reinforcement connection strap 2220 is tied to the second clasp 2110, and the other end is fixedly attached to the leg strap 220.

Specifically, by reinforcing the connection band 2220, the installation strength of the leg band 220 can be further increased, so that the leg band 220 is less likely to fall off, and meanwhile, by binding the reinforcement connection band 2220 to the second snap ring 2110, when the worker 50 falls, the reinforcement connection band 2220 can decompose the pressure to the chest button 240, the shoulder strap 230, the waist support 210 and the leg band 220 (i.e., the whole safety belt body 20), so that the chest does not bear huge pressure, and the problem that the worker 50 suffocates due to bearing huge pressure is further avoided.

Referring to fig. 4 and 6 again, in one embodiment, the harness body 20 further includes a back protection belt 250, a third snap ring 2320 is disposed at the rear side of the shoulder straps 230, a fourth snap ring 2120 is disposed at the rear side of the waist support 210, one end of the back protection belt 250 is tied to the third snap ring 2320, and the other end of the back protection belt 250 is tied to the fourth snap ring 2120.

Specifically, by providing the third snap ring 2320 at the rear side of the shoulder strap 230, providing the fourth snap ring 2120 at the rear side of the waist support 210, and tying the back protection strap 250 to the third snap ring 2320 and the fourth snap ring 2120, not only the installation strength of the shoulder strap 230 can be increased, the shoulder strap 230 is made to fall off less easily, but also the back of the worker 50 can be supported when falling while the back of the worker 50 is protected, and further the worker 50 is made to be more comfortable when waiting for rescue.

Referring to fig. 1 and 3 again, the present application further provides a method for using a safety belt, which includes the following steps of providing a safety belt equipped with at least two safety ropes 10, connecting the two safety ropes 10 with the safety belt, respectively suspending the two safety ropes 10 at high-altitude suspension points, when an operator 50 falls, a plane of any one safety rope 10 is a first plane, a plane of the other safety rope 10 is a second plane, an included angle α is formed between the first plane and the second plane, and the included angle α satisfies: alpha is more than 0 and less than 90 degrees.

According to the use method of the safety belt, the included angle alpha formed by the planes of the two safety ropes 10 enables the pulling force of the operating personnel 50 to be changed from the vertical direction to the horizontal direction or the oblique direction when the operating personnel fall, the problem that people can slide downwards due to the action of gravity is avoided, the safety ropes 10 are prevented from being lifted to the chest part, and the problem that the safety belt is lifted to the chest part due to the fact that the safety belt is connected with the safety ropes 10 is solved, so that the chest part of a human body is tightened, the breathing difficulty of the personnel is caused, and even the personnel can be suffocated to die.

Optionally, two equal-length safety ropes 10 or one longer and shorter safety rope 10 may be provided, and specifically, two unequal-length safety ropes 10 may be provided on the same side of the safety belt body 20, so that when the operator 50 is lifted, the plane of the operator 50 is inclined to the vertical direction, and the chest cavity of the operator 50 is pressed and dispersed to other parts, thereby protecting the chest cavity of the operator 50 from being squeezed by the safety ropes 10 and the safety belt body 20.

Specifically, the safety ropes 10 with equal length can not only protect the chest cavity of the operator 50, but also enable the left side and the right side of the body of the operator 50 to be difficult to generate height difference when falling, so that the waist of the operator 50 waiting for rescue can be better protected from being easily twisted, and the risk and difficulty of rescue are reduced.

The falling anti-asphyxia safety belt comprises two safety ropes 10 which are respectively connected with a safety belt body 20, compared with a single safety rope 10, the two safety ropes 10 can bear the pulling force of a pull-up worker simultaneously, so that the limit of the pulling force borne by the two safety ropes 10 in use is larger, the pulling force borne by the two safety ropes 10 is more uniform, the service life of the safety rope 10 is prolonged, meanwhile, the two safety ropes 10 are directly connected to the safety belt body 20, the safety belt body 20 and the safety rope 10 can be transported together, the transportation cost of the falling anti-asphyxia safety belt is reduced, the two safety ropes 10 are suspended at a high-altitude suspension point, the two safety ropes 10 are suspended at the high-altitude suspension point, the pressure applied to the safety ropes 10 is smaller than that applied to the single safety rope 10, the safety ropes 10 are used in daily life and when the safety rope is used, abrasion and breakage are less prone to occur, when the worker 50 is used, the worker is not prone to fall and break, the worker 50 is not located in the same vertical plane, an included angle alpha is formed by the worker 50, the worker is lifted by the safety rope 10, and the worker can not lifted to hang in the chest cavity, and the worker can not be lifted by the worker in the chest, and the worker can not easily, and the worker can be lifted in the chest cavity.

Meanwhile, the shoulder straps 230, the waist belt and the leg straps 220 are connected together, so that the pulling force can be more uniformly distributed on each part, the oppression on the chest cavity of the worker 50 is reduced, further, the leg straps 220 are fixed through the connecting belt 2210 and the reinforcing connecting straps 2220, the leg straps 220 can be better fixed on the safety belt body 20, further, the second safety buckles 40 are arranged on the reinforcing connecting straps 2220, so that the safety rope 10 can drive the leg straps 220 while pulling up the second safety buckles 40, further, the worker 50 can wait for rescue in a sitting posture when falling, and the rescue cost and difficulty are reduced.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims (10)

1. A fall anti-asphyxia harness, comprising:

a belt body (20); and

the safety belt comprises safety ropes (10), wherein the safety ropes (10) at least comprise two safety ropes, the two safety ropes (10) are respectively connected with the safety belt body (20), and the two safety ropes (10) are respectively hung on high-altitude hanging points;

after the operator (50) falls, the plane where one safety rope (10) is located is a first plane, the plane where the other safety rope (10) is located is a second plane, and an included angle is formed between the first plane and the second plane.

2. The fall anti-asphyxia harness according to claim 1, further comprising:

one end of each of the two safety ropes (10) is connected with the two first safety buckles (30) respectively;

and the other ends of the two safety ropes (10) are respectively connected with the second safety buckle (40).

3. A fall asphyxia safety harness according to claim 2, wherein the safety line (10) comprises:

one end of the safety rope body (110) is tied to the first safety buckle (30);

the safety hook (120), the safety hook (120) set up in safety rope body (110) other end, safety hook (120) with second safety is detained (40) lock and is connected.

4. The fall asphyxia prevention harness according to claim 2, wherein the harness body (20) comprises:

a waist support (210); and

the waist support (210) is positioned above the auxiliary protective belt, and a connecting belt (2210) is arranged at the joint of the waist support (210) and the auxiliary protective belt.

5. The fall asphyxia prevention harness according to claim 4, wherein the second safety buckles (40) comprise at least two, and the two second safety buckles (40) are arranged on the harness body (20) at intervals along the length direction of the waist support (210).

6. The fall asphyxia prevention safety belt according to claim 5, wherein the auxiliary protection belt comprises a leg belt (220), the connection belt (2210) is disposed on the leg belt (220) at one end and on the waist support (210) at the other end, the two first safety buckles (30) are disposed on two sides of the waist support (210) and/or the leg belt (220), and the second safety buckle (40) is disposed on a front side of the waist support (210) and/or the connection belt (2210).

7. The fall asphyxia prevention harness according to claim 5, wherein the harness body (20) further comprises:

the shoulder strap (230), the shoulder strap (230) is located above the waist support (210), a first snap ring (2310) is arranged on the front side of the shoulder strap (230), and a second snap ring (2110) is arranged on the front side of the waist support (210) and/or the leg strap (220);

the first clamping ring (2310) and the second clamping ring (2110) are connected in a buckling mode through the chest buckle (240).

8. The fall asphyxia safety harness according to claim 7, wherein the leg strap (220) further comprises a reinforcing connection strap (2220), one end of the reinforcing connection strap (2220) is tied to the second snap ring (2110), and the other end is fixedly disposed on the leg strap (220).

9. The fall asphyxia prevention harness according to claim 7, wherein the harness body (20) further comprises: the back protection belt (250) is characterized in that a third snap ring (2320) is arranged on the rear side of the shoulder straps (230), a fourth snap ring (2120) is arranged on the rear side of the waist support (210), one end of the back protection belt (250) is tied to the third snap ring (2320), and the other end of the back protection belt (250) is tied to the fourth snap ring (2120).

10. A safety belt using method is characterized by comprising the following steps:

providing a harness body (20) configured with at least two safety lines (10);

connecting the two safety ropes (10) with the safety belt body (20) respectively;

the two safety ropes (10) are respectively hung on high-altitude hanging points;

when an operator (50) falls, the plane where any one safety rope (10) is located is a first plane, the plane where the other safety rope (10) is located is a second plane, and an included angle is formed between the first plane and the second plane.

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