WO2013107072A1

WO2013107072A1 - Suspension descending system

Info

Publication number: WO2013107072A1
Application number: PCT/CN2012/071385
Authority: WO
Inventors: 何少敦
Original assignee: He Shaodun
Priority date: 2012-01-21
Filing date: 2012-02-21
Publication date: 2013-07-25
Also published as: CN103213915A

Abstract

A suspension descending system comprises a working rope (1), a descender (2), a connecting plate (3.1) and a carrying device (4). The working rope is tied with a special knot on the descender. Furthermore, on the descender is disposed a side plate (2.3.1) provided with a deflecting pull member (6.1, 6.2). In high place, gravity of the free end of the rope is very large. At this time, the deflecting pull member can be operated by human body to deflect the descender. Then, the rope at the back of the special knot is in a freely hanging state, and the friction of the special knot is reduced. Hence, the human body can descend automatically by own gravity, or the force decending the body by pulling the rope upwards will be smaller.

Description

Description of the book

Technical field

The invention relates to a suspension descent system, in particular to a suspension descent system which is manually controlled by gravity of a human body. Background technique

In daily life, cleaning the exterior wall 吋 usually uses a seat-type single-use spreader. When using it, first select a fixed place on the top of the building, and use all the corners of the rope, ribs and laps. To prevent the abrasion of the sling; then put a special knot on the sling in the lowering of the seat sling. Because there is such a special knot, at work, the hanging plate does not slide down, and the person controls the rope and can operate freely. To put it simply, when you lift the rope and the hanging plate, it will slide down a little, how much slippery, how fast and how fast, until the end of the work. This tool can also be used for high-altitude exterior wall painting projects. Due to the use of the spreader, the user has to carry out the construction operation in addition to the operation of the rope. Because it is a work at height, the work is dangerous. High-altitude operators using seat-type single-hand spreaders must be male citizens of 18 years of age or older, and undergo physical examination and safety technical training. Only after passing the examination can they work. Workers must not drink alcohol before they are employed, and have symptoms such as a cold. Work at height must be suspended. The advantage of the seat type single-purpose spreader is that it is simple in structure and convenient to operate. If the safety measures are done well, it is safe to use.

In order to standardize the terminology, the names of various types of parts in this article refer to the relevant materials of “Safety Technical Specifications for Seat-type Single Spreaders for Building Exterior Wall Cleaning Work”. The suspension descent system is mainly composed of a working rope, a descender, a connector, and a seat plate device. Dropper: A device that is mounted on a working rope and powered by the operator's own weight and controlled by hand. The types of descenders include: rod, multi-plate, splayed and shackle type, among which shackle type lowers Commonly known as U-shaped crab buckle. Connector: A ring-like part with a normally closed valve that connects the internal parts of the system together. Seat plate device: A device for carrying workers, consisting of a sling, a lining and a seat plate.

Since the seat type single spreader is a special knot in the lowering device. Due to the friction generated by the special knot and the gravity of the free end of the rope (the end of the rope drooping to the ground), the friction of the special knot and the gravity of the free end rope are called the forces that hinder the lowering of the human body. When the sum of all the resistances including the above two resistances is greater than the human gravity, the human body will be suspended in the air. When it is at a high position, because the gravity of the free end rope is very large, when the human body needs to descend, the free end rope must be lifted up, so that the special knot is not tightened. At this time, the human body is lowered when the rope is lifted, and the rope is lifted. How much, how much the human body falls, how fast the rope lifts, how fast the human body slides. The problem is that when the height of the building is very high, the free end of the rope (the end of the rope drooping to the ground) is long and the gravity is very large; when the rope is 20 cm in diameter and the length exceeds 100 m, the gravity of the rope will exceed 25 kg; The longer the length of the rope, the greater the effort the human body needs to lift the rope when it falls, and sometimes even the problem of lifting the rope, causing great trouble for construction and operation.

Summary of the invention

In order to overcome the current use of the seat-type single-use spreader, it takes a lot of effort to lift the rope when the body is lowered, and sometimes there is a problem of lifting the rope, which causes great trouble for construction and operation. The invention provides a suspension descent system which is provided with a deflection puller Description

To change the direction of the rope after the special knot, in order to change the frictional force of the special knot rope: When it is at a high position, the free end of the rope has a large gravity, and the human body operates the deflection puller to deflect the lower deflector, making the special After the knot, the rope is in a freely suspended state, and the friction of the special knot rope becomes small. As a result, the human body can achieve automatic lowering by its own gravity, or the force required to lift the rope upwards is smaller, solving some problems in construction and operation.

The invention proposes that the suspension system proposed by the invention can be used not only as a hanging tool for building exterior wall construction, but also as a lifesaving tool for building fire rescue or rescue.

The technical solution adopted by the present invention is a suspension descent system proposed by the present invention, which mainly comprises a working rope, a descender, a connector, a carrying device, and the working rope is marked with a special knot on the descender. The feature is that the descender is further provided with a side plate, and the side plate is provided with a first deflecting pull member. When the human body pulls the first deflecting puller forcefully, the lowering device is deflected due to the change of the force point of the lowering device, thereby changing the direction of the rope after the special knot, so that the rope after the special knot is in a freely suspended state, thereby The friction of the special knot rope becomes smaller.

According to a preferred embodiment of the present invention, the descender is a known u-shaped shackle type lowering device having a u-ring and a first threaded shaft, and a side plate is disposed on the u-ring.

Preferably, the descender is mainly composed of a cylindrical roping member, a side plate and a first through shaft, the first through shaft is fixed on the side plate, and the working rope is on the roping member. Putting on a special knot, the human body is fixed on the descender by the carrying device, the connector, and the first through shaft.

In a preferred embodiment of the invention, the first deflection puller is fixed to the side panel and is on the same side as the rope that bypasses the first thread. When the building is very tall, it is difficult for the human body to lift the rope upwards. At this time, the human body only needs to pull the first deflecting pull member hard. Because the force point of the lowering device changes, the lowering device deflects, so that the rope after the special knot is at In the freely suspended state, the friction of the special knot rope becomes smaller. Therefore, under the action of the human body's own weight, the human body can achieve automatic lowering, or the force required to lift the rope upwards is smaller, solving some problems in construction and operation.

Preferably, a second deflection puller is further provided, the second deflection puller being fixed to the side panel on a different side than the rope bypassing the first thread. When the human body keeps falling and the closer to the ground, the shorter the length of the free end rope, the smaller the gravity. Even if the rope is not lifted, the human body will automatically drop, and even the situation of falling out of control may occur. Accident; At this time, the human body only needs to pull the second deflection puller forcefully, because the force point of the lowering device changes, the lower deflector deflects, and the first shaft deflection is lifted upward, so that the rope after the special knot bypasses the first When the shaft is worn, the corner is larger, and the friction of the special knot rope becomes larger, thereby reducing the speed of the human body, or stopping the human body from falling, avoiding the situation of falling out of control and avoiding accidents.

According to a preferred embodiment of the present invention, the first deflecting puller and the second deflecting puller are respectively fixed to the side panel by the second through shaft and the third through shaft.

According to a preferred embodiment of the present invention, the first through shaft, the second through shaft, and the third through shaft are respectively fixed to the side plates by screws. this invention Description

It is suggested that the fixed form of the threaded shaft can also adopt other known fixed forms.

According to a preferred embodiment of the present invention, the first deflecting pull member and the second deflecting pull member may also be directly fixed to the side panels, respectively. As long as the deflection puller is fixed and the human body pulls the deflection puller by hand, the descender can be deflected left and right to meet the requirements.

A preferred embodiment of the present invention is: The ride device can be a seat plate device disclosed in the prior art. When using the seat plate device, the dropper uses a seated posture to land.

A preferred embodiment of the invention is: The ride device can be a seat belt device disclosed in the art today. When using the full belt device, the dropper uses a vertical position to land.

The invention has the beneficial effects that, by providing a deflection puller, the dropper uses the deflection puller to control the deflector deflection, thereby changing the direction of the rope after the special knot, thereby changing the frictional force of the special knot rope. When it is at a high position, the friction of the special knot rope is in a small state, so that the human body can automatically lower or lift the rope by using its own gravity, which is more labor-saving, and brings convenience to construction and operation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, FIG. 2, FIG. 3, and FIG. 4 are schematic structural views of an embodiment of the prior art; FIG. 1 is a front view, FIG. 2 is a left side view, and FIG. 3 and FIG.

5, FIG. 6, FIG. 7, FIG. 8, and FIG. 9 are schematic structural views of a first embodiment of the present invention; wherein FIG. 5 is a left side view, FIG. 6, FIG. 7, and FIG. FIG. 8 is a view after FIG. 7 is rotated through an angle, and FIG. 9 is a schematic structural view when in use.

10, FIG. 11, FIG. 12, and FIG. 13 are schematic structural views of a second embodiment of the present invention; wherein FIG. 10 is a left side view, FIG. 11, and FIG. 12 are partial structural views, and FIG. 12 is FIG. Turning the view after an angle, Figure 13 is a schematic diagram of the structure in use.

14 and 15 are schematic views showing the structure of a third embodiment of the present invention.

In the picture:

1. Working rope, 1. 1 special knot, 1. 2A free end, 1. 2B fixed end, 2 lowering, 2. 1A U-ring, 2. 1B cylindrical roping, 2. 2A first through shaft 2. 2B second threading shaft, 2. 2C third threading shaft, 2. 2A1 first threaded part, 2. 2B1 second threaded part, 2. 2C1 third threaded part, 2. 3. 1 first side plate , 2. 3. 2 second side panel, 3. 1 connector, 4. carrying device, 5 human body, 6. 1 first deflecting puller, 6. 2 second deflecting puller.

detailed description

1, FIG. 2, FIG. 3, and FIG. 4 are schematic structural views of an embodiment of the prior art; FIG. 1 is a front view, FIG. 2 is a left side view, and FIG. 3 and FIG. 1 and 2, in the prior art, the seat plate type single-purpose spreader mainly comprises a working rope 1, a lowering device 2, a connector 3.1, a loading device 4; when used, the working rope 1 2的固定。 The fixed end of the body 2 is attached to the lower part of the lower end of the lower shaft 2. 2A is attached to the shaft of the lowering device 2. 2A. Because there is a special knot 1. 1, the human body 5 will not slide down, but can be freely lowered by operating the working rope 1. Instruction manual

When it is necessary to descend, the operator only needs to lift the free end rope 1. 2A (the end of the special knot below the rope to the ground) can be lowered; how much the rope is lifted up, how much the human body falls, how fast the rope is lifted, How fast the human body slides. Therefore, the general cleaning of the external wall requires that the physically strong and trained personnel allow the operation, which is clearly defined in the relevant technical specifications. The problem is that when the height of the building is very high, the length of the free end of the rope is very long and the gravity is also very large; when the rope is 20 cm in diameter and the length exceeds 100 m, the weight of the rope will exceed 25 kg; the longer the length of the rope, The greater the effort required for the body to lift the rope when it descends, sometimes even the problem of lifting the rope, causing great troubles for construction and operation.

Figure 5, Figure 6, Figure 7, Figure 8, Figure 9 is a schematic view of the structure of the first embodiment of the present invention; wherein Figure 5 is a left side view, in order to facilitate the display of the special knot 1.1 the direction of the rope, Figure 5 is the removal side FIG. 6, FIG. 7, and FIG. 8 are partial structural diagrams. For convenience of illustration, FIG. 8 is a view after FIG. 7 is rotated through an angle, and FIG. 9 is a structure in use. schematic diagram.

In Figure 5, the figure shows that in the present embodiment, the suspension descent system mainly comprises a working rope 1, a lowering device 2, a connector 3.1, and a loading device 4; in use, the working rope 1 is passed through the fixed end. 1. The 2A is wounded from the first through shaft 2. 2A, and the human body 5 passes through the loading device 4, the connector 3. The shackle of the U-shaped shackle having a U-ring 2. 1A and a first threading shaft 2. 2A is different from the prior art. The first deflecting member 6.1 is fixed to the side panel and is coupled to the first side panel 2. 3, the second deflecting member 6.1 is fixed to the side panel and is 2A The rope is on the same side;

As can be seen in the partial structural diagrams of Figures 6, 7, and 8, the first deflection puller 61 is fixed to the side panel by the second through shaft 2. 2B.

Also shown in Figures 6, 7, and 8, the second threading shaft 2. 2B is secured to the side panels by the second threaded member 2. 2B1. The invention suggests that the fixed form of the threaded shaft can also take other known forms of fixation.

Figure 9 is a schematic view of the structure in use; as shown in the figure, when the building is very tall, it is difficult for the human body to lift the rope upwards. At the time, the human body is only required to pull the first deflecting member by hand. 1. The body 5 is fixed by the carrying device 4, the connector 3.1 is fixed on the first threading shaft 2. 2A, and is pulled by hand. After the first deflection puller 6.1, part or all of the weight of the human body acts on the lowering device 2 through the first deflection pull member 6.1, at which time the lowering device 2 is deflected due to the change of the force point. 2A is in a freely suspended state, and the friction of the special knot 1.1 becomes small. Thus, under the action of the gravity of the human body 5, the human body can achieve automatic lowering, or the force required to lift the rope upwards is smaller, solving some problems in construction and operation.

As can be seen from FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, the suspension descent system proposed by the present invention is an open suspension system, that is, the descender can be used at any position of the rope, and therefore, the working rope Not only for a dropper, but for several droppers. When used as a fire rescue, when a escaper uses a descender to land on the ground or low, another escaper can use other descenders to continue to use the same working rope to escape from a height.

The first deflecting member can also be directly fixed to the first side plate 2. 3. 1, or fixed on the second side. Description

Plate 2. 3. 2, the fixing method can be bolted or other known methods. As long as the human body pulls the deflection puller by hand, the lowering device can be deflected.

It is suggested herein that in the first embodiment, the double side panel, i.e., the first side panel 2. 3. 1, the second side panel 2. 3. 2, is disposed on the lowering device 2. The invention also suggests that a single-sided plate can also be provided, as long as the deflection pull member can be fixed and the deflector can be deflected when the force is pulled by the manual force to meet the structural requirements; when the single-sided plate is used, the deflection pull member is directly fixed at Side panel.

As shown in Fig. 10, in the present embodiment, unlike the first embodiment, a second deflecting pull member 6.2 is further provided on the other side of the threading shaft 2. 2A. I, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 2C1 is fixed to the side panel by screwing 2. 2C1.

Figure 13 is a schematic view of the structure when in use, when the human body 5 is continuously descending, and the closer to the ground, the shorter the length of the free end of the rope 1. 2A, the smaller the gravity, even if the rope is not lifted, the human body will automatically 2, The human body 5 was originally fixed by the carrier device 4, the connector 3.1, the body is only required to pull the second deflection puller by hand. The second embodiment of the weight of the human body is applied to the lower deflector 2, The angle of the lower end of the second shaft is 2. 2A, the corner is larger. , Special knot 1. 1 The friction of the rope becomes larger, which can reduce the falling speed of the human body 5, or stop the human body from falling, avoiding the situation of falling out of control and avoiding accidents.

14 and 15 are schematic views showing the structure of a third embodiment of the present invention. The first side plate 2 is shown in the figure, which is different from the second embodiment, the lowering device 2 is improved, mainly by a cylindrical roping member 2. 1B, the first side plate 2. 3. 1, the first side plate 2 2A1, 2A1 is fixed to the side plate by the first screw member 2. 2A1, the rope 2 of the working rope 1 at the lowering device 2 1的第一1。 First, the first yoke is attached to the lowering device 2. 2B,第二穿轴。 2. 2B, the second through the shaft 2. 2B, the second through the shaft 2. 2B, the second through the shaft 2. 2B, the second through the shaft 2. 2C1 is fixed to the side plate by the second screw member 2. 2B1, the third screw member 2. 2C1.

The present invention suggests that the descender feature of the third embodiment can also be applied to the first embodiment described above.

Claims

Claim

A suspension descent system, which mainly comprises a working rope, a descender, a connector, and a loading device, wherein the working rope is marked with a special knot on the lowering device, wherein the lowering device is further provided with The side plate is provided with a first deflection puller on the side plate.

2. The suspension lowering system according to claim 1, wherein the lowering device is provided by a U-shaped shackle type lowering device having a U-shaped ring and a first threading shaft, and is disposed on the u-shaped ring There are side panels.

3. The suspension descent system according to claim 1, wherein the descender is mainly composed of a cylindrical roping member, a side plate, and a first through shaft, and the first through shaft is fixed to the side plate. Above, the working rope is wound with a special knot on the roping member, and the human body is fixed on the descender through the carrying device, the connector and the first through shaft.

4. The suspension descent system of claim 1, wherein the first deflecting pull member is fixed to the side panel and is on the same side as the rope that bypasses the first threading shaft.

5. The suspension descent system according to claim 1, further comprising a second deflecting pull member, the second deflecting pull member being fixed on the side plate and on a different side of the rope bypassing the first through shaft .

6. The suspension descent system according to claim 1, wherein the first deflecting pull member and the second deflecting pull member are respectively fixed to the side plate by the second through shaft and the third through shaft.

7. The suspension descent system according to claim 1, wherein the first through shaft, the second through shaft, and the third through shaft are respectively fixed to the side plate by a screw member.

8. The suspension descent system according to claim 1, wherein the first deflecting pull member and the second deflecting pull member are directly fixed to the side plates, respectively.

9. The suspension descent system according to claim 1, wherein the ride device is a seat plate device.

10. The suspension descent system according to claim 1, wherein the ride device is a seat belt device.