CN104941080A - High-altitude descent control device - Google Patents

Abstract

The invention discloses a high-altitude descending device, which is characterized in that it includes: an installation shell, a fixed wheel, a brake wheel, a brake plate, an eccentric wheel, a brake handle and a rope; the fixed wheel is installed on the On the right side of the installation housing, there are no less than two fixed wheels; the brake wheel is installed on the left side of the fixed wheel, and the rotating shaft of the braking wheel is located in the middle of the rotating shafts of two adjacent fixed wheels; The moving wheel is one less than the fixed wheel, and is installed on the installation shell through the mounting hole of the brake wheel; the brake plate is arranged on the left side of the brake wheel; the left side of the brake plate is provided with an eccentric wheel ; The brake handle is installed on the eccentric wheel; the upper and lower parts of the fixed wheel and the brake wheel are respectively provided with two guide wheels opposite to each other. The invention has the advantages of simple structure, convenient operation, fast and safe emergency escape from high altitude, and stable and adjustable descending speed.

Description

Descending device

technical field

The invention relates to the field of high-altitude rescue, in particular to a high-altitude descending device.

Background technique

In the event of accidents in high-altitude operations or emergency situations such as fires and earthquakes in high-rise buildings, evacuation and escape of personnel is a key issue that needs to be considered. At present, for high-rise buildings, more emergency evacuation personnel are generally added to deal with emergencies. The entire evacuation and escape process takes a long time, which cannot effectively solve the escape problem in emergency situations. Moreover, the existing high-altitude slow-descent devices are complicated to operate. Flexibility is not strong and other issues.

Contents of the invention

In view of the above problems, the present invention researches and designs a high-altitude descending device with convenient operation, compact structure and strong flexibility.

Technical means of the present invention is as follows:

A high-altitude descending device is characterized in that it includes: an installation shell, a fixed wheel, a brake wheel, a brake plate, an eccentric wheel, a brake handle and a rope;

The installation shell has a fixed wheel installation hole, a brake wheel installation hole and a brake plate installation hole; the brake wheel installation hole and the brake plate installation hole are long holes;

The fixed wheel is installed on the right side of the installation housing through the fixed wheel mounting hole, and there are no less than two fixed wheels;

The braking wheel is installed on the left side of the fixed wheel, and the rotating shaft of the braking wheel is located in the middle of the rotating shafts of two adjacent fixed wheels; The moving wheel mounting hole can be moved left and right and installed on the mounting shell;

Both the fixed wheel and the braking wheel can rotate around their respective rotating shafts;

The brake plate is arranged on the left side of the brake wheel, and is mounted on the installation shell through the brake plate installation hole to move left and right;

The left side of the brake plate is provided with an eccentric wheel;

The brake handle is installed on the eccentric wheel;

The rope passes through the upper end of the installation housing, then passes between the brake wheel and the fixed wheel, and finally passes through the lower end of the installation housing;

Pull the brake handle, the eccentric wheel rotates, and pushes the brake plate to move left and right, thereby pushing the brake wheel to move left and right, and then loosens or compresses the brake wheel and the brake wheel. The rope between the fixed wheels adjusts the descending speed of the slow descender by adjusting the size of the friction between the rope and the brake wheel and the fixed wheels.

Further, the right side of the brake plate has a semicircular installation groove that fits with the brake wheel; the brake wheel can rotate in the installation groove.

Further, the surface of the installation groove is tooth-shaped. The surface of the installation groove is designed in a tooth shape to prevent damage to the contact surface after long-term use, resulting in reduced friction under the same force conditions.

Further, there are three fixed wheels and two brake wheels.

Further, the slow descender also includes a guide wheel; the installation shell also has a guide wheel installation hole; the upper and lower parts of the fixed wheel and the brake wheel are respectively provided with two guide wheels opposite to each other, so The guide wheels are installed on the installation housing through the guide wheel mounting holes, and can rotate around their respective shafts; after the rope enters from the upper end of the installation housing, it passes through the middle of a pair of guide wheels on the upper part, and then from the The fixed wheel passes through the middle of the brake wheel, passes through the middle of a pair of guide wheels at the lower part, and finally passes through the lower end of the installation housing. The guide wheels reduce the swing of the descender during the descent.

Further, the descender further includes a casing; the casing is arranged outside the installation housing; the brake handle leaks out of the casing.

Further, the descent descent device further includes a safety hook installed on the housing, and the descent descent device is fixed to a safety belt worn by a person through the safety hook.

Furthermore, the rope is a high-performance fiber material with flame-retardant properties, and its ultimate load-bearing capacity is 800kg.

Compared with the prior art, the high-altitude descending device of the present invention has the following beneficial effects:

1. The structure is simple, the operation is convenient, and the descent is stable.

2. By rotating the handle, the descent speed can be adjusted by itself, so as to quickly and safely realize high-altitude emergency escape.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is a working mechanism diagram of an embodiment of the present invention;

Fig. 3 is the installation schematic diagram of the embodiment of the present invention;

Fig. 4 is a schematic diagram of the housing of the embodiment of the present invention;

Fig. 5 is a schematic diagram of the connection between the embodiment of the present invention and the safety belt.

Among the figure: 1, guide wheel, 2, fixed wheel, 3, brake wheel, 4, eccentric wheel, 5, brake plate, 50, installation groove, 6, rope, 7, brake handle, 8, installation shell , 81, guide wheel mounting hole, 82, fixed wheel mounting hole, 83, brake wheel mounting hole, 85, brake plate mounting hole, 9, shell, 10, seat belt, 11, safety hook.

Detailed ways

A high-altitude descending device is suitable for high-rise building rescue or high-altitude operations.

The directional terms mentioned in the present invention, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the attached drawings. Accordingly, the directional terms are used to illustrate, not to limit, the invention.

The high-altitude descending device shown in Figures 1 to 5 is characterized in that it includes: an installation housing 8, a guide wheel 1, a fixed wheel 2, a brake wheel 3, a brake plate 5, an eccentric wheel 4, and a brake handle 7 and rope 6.

There are guide wheel mounting holes 81, fixed wheel mounting holes 82, brake wheel mounting holes 83 and brake plate mounting holes 85 on the mounting shell 8; brake wheel mounting holes 83 and brake plate mounting holes 85 are long holes.

The fixed wheel 2 is installed on the right side of the installation housing 8 through the fixed wheel mounting hole 82, and there are no less than two fixed wheels 2.

The brake wheel 3 is installed on the left side of the fixed wheel 2, and the rotating shaft of the brake wheel 3 is located in the middle of the rotating shafts of two adjacent fixed wheels 2; the brake wheel 3 is one less than the fixed wheel 2, and the brake wheel The mounting hole 83 is mounted on the mounting shell 8 so that it can move left and right. In the embodiment of the present invention, there are three fixed wheels 2, and two brake wheels 3.

Both the fixed wheel 2 and the brake wheel 3 can rotate around their respective rotating shafts;

The top and bottom of the fixed wheel 2 and the braking wheel 3 are respectively provided with two guide wheels 1 opposite to each other. The guide wheels 1 are installed on the installation housing 8 through the guide wheel mounting holes 81, and can rotate around their respective rotating shafts; The upper end of the installation housing 8 enters, then passes through the middle of the pair of guide wheels 1 on the upper part, then passes through the middle of the fixed wheel 2 and the brake wheel 3, passes through the middle of the pair of guide wheels 1 on the lower part, and finally passes through the middle of the pair of guide wheels 1 at the bottom. The lower end of the installation shell 8 passes through.

The brake plate 5 is arranged on the left side of the brake wheel 3, and is installed on the installation housing 8 through the brake plate mounting hole 85 to move left and right; The semi-circular mounting groove 50 matched with the installation, the brake wheel 3 can rotate in the mounting groove 50; the surface of the mounting groove 50 is tooth-shaped, and the surface of the mounting groove 50 is designed to be tooth-shaped to prevent damage to the contact surface during long-term use , leading to a decrease in friction under the same stress conditions.

The left side of the brake plate 5 is provided with an eccentric wheel 4; the brake handle 7 is installed on the eccentric wheel 4.

The working mechanism is as shown in Figure 2. When the brake handle 7 is pulled, the eccentric wheel 4 rotates, and the brake plate 5 is pushed to move left and right, thereby pushing the brake wheel 3 to move left and right, and then loosens or presses the brake plate clamped on the brake plate. The rope 6 between the wheel 3 and the fixed wheel 2 can adjust the descending speed of the slow descender by adjusting the friction force between the rope 6 and the brake wheel 3 and the fixed wheel 2 .

The high-altitude descending device also includes a housing 9 as shown in FIG. 4 ; the housing 9 is arranged outside the installation housing 8 ; As shown in FIG. 5 , the high-altitude descending device further includes a safety hook 11 installed on the housing 9 , and the high-altitude descending device is fixed with the safety belt 10 worn on the person through the safety hook 11 .

The rope 6 is a high-performance fiber material with flame-retardant properties, and its ultimate load-bearing capacity is 800kg.

One end of the rope 6 is provided with a suspension ring, which is used to fix the rope 6 with a fixed object. The survivor wears the high-altitude descending device of the embodiment of the present invention. Descend safely to safe ground at an appropriate speed.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (8)

1. a high-altitude slow-falling device, is characterized in that, comprising: holder housing, fast pulley, braked wheel, keep plate, eccentric wheel, brake handle and rope;

Described holder housing have fast pulley installing hole, braked wheel installing hole and keep plate installing hole; Described braked wheel installing hole and described keep plate installing hole are elongated hole;

Described fast pulley is arranged on the right side of described holder housing by fast pulley installing hole, and described fast pulley is no less than two;

Described braked wheel is arranged on the left side of described fast pulley, and the rotating shaft of described braked wheel is positioned in the middle of the rotating shaft of two adjacent fast pulleys; Fewer than described fast pulley one of described braked wheel, and can be moved left and right by braked wheel installing hole be arranged on described holder housing;

Described fast pulley and described braked wheel all can around respective axis of rotation;

Described keep plate is arranged on the left side of described braked wheel, and can be moved left and right by keep plate installing hole be arranged on described holder housing;

The left side of described keep plate is provided with eccentric wheel;

Described brake handle is arranged on described eccentric wheel;

Described rope penetrates from the upper end of holder housing, then passes between braked wheel and fast pulley, finally passes from the lower end of holder housing;

Pull described brake handle, described eccentric wheel rotates, promote described keep plate to move left and right, thus promote described braked wheel and move left and right, and then to unclamp or pressing clip is located at rope between described braked wheel and described fast pulley, by regulating the size of the frictional force of rope and described braked wheel and described fast pulley, regulate the decrease speed of descending lifeline.

2. descending lifeline according to claim 1, is characterized in that, has the semicircle mounting groove with the suitable installation of described braked wheel on the right side of described keep plate; Described braked wheel can rotate in described mounting groove.

3. descending lifeline according to claim 2, is characterized in that, described mounting groove surface is profile of tooth.

4. descending lifeline according to claim 1, is characterized in that, described fast pulley is 3; Described braked wheel is 2.

5. descending lifeline according to claim 1, is characterized in that, described descending lifeline also comprises directive wheel; Described holder housing also has directive wheel installing hole; The upper and lower of described fast pulley and described braked wheel is relatively set with two directive wheels in left and right respectively, and described directive wheel is arranged on described holder housing by directive wheel installing hole, and can rotate around respective rotating shaft; After described rope enters from the upper end of holder housing, pass in the middle of a pair directive wheel on top, then pass in the middle of fast pulley and braked wheel, take advantage of a situation from a pair directive wheel of bottom is middle and pass, finally pass from the lower end of holder housing.

6. descending lifeline according to claim 1, is characterized in that, described descending lifeline also comprises shell; Described shell is arranged on the outside of described holder housing; Described brake handle spills the outside at described shell.

7. descending lifeline according to claim 6, is characterized in that, described descending lifeline also comprises installation safety hook on the housing, and described descending lifeline is fixed by described safety hook and the safety belt be worn on the person.

8. descending lifeline according to claim 7, is characterized in that, described rope is the high performance fibre material with fire resistance, and ultimate bearing capacity is 800kg.