RU146097U1 - PORTABLE LIFT - Google Patents

Abstract

A portable elevator comprising rollers, characterized in that it comprises a housing in which the engine is located, connected via a gearbox to a traction roller made with a recess, while a strap with a fixing mechanism mounted on it and fixed pressure rollers is mounted on the housing, and the housing has a hole for securing movable objects.

Description

The utility model relates to hoisting vehicles and can be used to transport goods, objects and people from one level to another.

Currently, in connection with the development of skiing, the creation of lifts that deliver any ski gel to the slopes is an urgent task.

Ski lift is a technical construction in the highlands designed to lift skiers and snowboarders to the start of the descent. It is also used for raising and lowering tourists. There are two main classes of ski lifts:

Aerial lifts, with the help of which people are lifted in cabins or chairs suspended from a cable, with a separation from the earth's surface.

Ground - lifts, with the help of which people are lifted without taking off from the earth's surface. In this type of ski lift, the skier moves upwards on a yoke, which is attached to the cable. The yokes are of different types: in the form of a T-shaped crossbar, in the form of a plate. On a T-shaped crossbar movement together is possible. One man sits on a plate-shaped round bar. At the landing site, the skier takes the yoke with his hand and sits on the crossbar while skiing. Due to the movement of the cable, it begins to drag it up. When climbing to the landing site, he releases the yoke and moves to the side.

Known ski lift described in the patent of the Russian Federation No.201 1583 IPC B61B 11/00. publ. 04/30/1994.

The lift, operating from the drive wheel of the car, has a shaft. fastened instead of a wheel (or directly onto it), on which a pulley with a groove under the cable and a plate with pressure rollers are mounted and secured with a shear pin (the distance between the rollers and the pulley is about 1.5 of the cable diameter), which presses the cable to the pulley. There is a hook on the same plate to prevent skewing of the drive axle. There is a drum on the shaft for unwinding the cable before installation and reeling after use. At the end of the rack there is a hook for attaching the chain hoists, which are attached to the hook, driven into the ground. A special stand is used to hang the wheels.

To ensure operational safety, a shear pin and a limit switch are used (can be installed additionally in any convenient place). If the skier was unable to detach in time, his hook reaches the limit switch roller, the ignition circuit of the car engine breaks, and it stalls, thereby stopping the cable along with the skier.

Known portable ski lift, protected by RF patent for utility model No. 31122, IPC B61B 11/00, publ. 07/20/2003.

The portable ski lift comprises a closed traction body, a drive element, pressure rollers, an end support with a bypass roller and an intermediate support for spacing the height of the branches of the traction body. A rope was used as a traction unit, and a drive wheel of a car was used as a drive element, while the pinch rollers were mounted on a platform with a guide for driving a car with one drive wheel, and the pulling branch of the rope was placed between the drive wheel of the car and pinch rollers.

All these types of above lifts work as stationary, they are very difficult to manufacture and install, especially in mountainous conditions. The absence of stationary lifts greatly complicates the rise of athletes to the place of skiing. Athletes are forced to climb on foot, which takes a lot of energy, or climb a helicopter or snowcat, which is very expensive or inaccessible due to the lack of this equipment in the ski area.

The disadvantage of these devices is the large size and their mandatory fixed installation in the ski area.

Closest to the claimed utility model in technical essence and the achieved result, selected as a prototype, is a portable lift, protected by US patent No. 4811669, class. B61B 11/02, B61B 9/00, publ. 03/14/1989.

The elevator contains three rollers, between which a tape is skipped.

A disadvantage of the known lift is the inability to control the lifting speed, the impossibility of vertical lifting, the limited weight of the lifted loads, the use of special tape.

The problem solved by the proposed utility model is the creation of a compact, portable, low-weight lift that can lift loads up to 200 kg, including vertically an unlimited distance, using standard cables or ropes.

The technical result from the use of the utility model is the ability to control the lifting speed, the possibility of vertical lifting with increased traction load.

This result is achieved by the fact that the portable lift, including the rollers, contains a housing in which the engine is located, connected through a gearbox with a traction roller made with a recess, while the strip is movably fixed to the housing with a fixing mechanism mounted on it and fixed pressure rollers, and a hole is made on the body for securing movable objects.

The drawing shows a portable lift: in FIG. 1 - view of the right inoperative; in FIG. 2 is a right view in working condition with a fixed bar with pressure rollers: in FIG. 3 - view from the left; in FIG. 4 section of the traction roller 4 with a recess 5.

The portable lift comprises a housing 1 in which the engine 2 is located (Fig. 1, 2). The engine 2 is connected through a gear 3 (Fig. 3) with a traction roller 4, made with a recess 5 (Fig. 4). A strap 6 is movably fixed on the housing 1 with a fixing mechanism 7 mounted on it and the pressure rollers are fixed 8. A hole 9 is made on the housing 1 for securing movable objects, such as a load, a person or a person with a load.

Portable lift works as follows.

The lift is carried out on a stationary cable, which is pre-fixed at the top of the lift. The load is attached to the housing 1 of the lift through the hole 9. The stationary cable is fixed on the traction roller 4 inside the recess 5 by fixing the cable with the pressure rollers 8 to the traction roller 4. In this case, the bar 6 is rigidly fixed to the housing 1 using the locking mechanism 7. Turn on the engine 2, through the gearbox 3, the thrust from the engine 2 enters the traction roller 4, which ensures the movement of the hoist along the stationary cable. Choosing a gearbox 3 with a given gear ratio, you can change the lifting speed and weight of the transported load. The cable fixing system between the traction roller 4 and the pressure rollers 8, as well as the shape of the recess 5, does not allow the cable to slip during vertical lifting.

The gearbox and motor use standardized gear parts. The case is made of high-strength plastic, the pinch rollers and the traction roller, depending on the purpose, can be made of either aluminum or steel. The bar is made by stamping from high strength aluminum. The fixing mechanism is made of steel by milling.

The portable lift has been tested in high altitude and high-rise buildings, showing its high performance and ease of use. The lift can be used to move people or goods uphill or vertically on buildings and structures. It is indispensable for rescue operations in the mountains and high-rise buildings, and can also facilitate the lifting of goods and people in construction work. Also, the lift can be used as a lifting device for skiers and climbers, due to its compact size and low weight.

Compared with the prototype, the proposed lift has the ability to control the lifting speed, the possibility of vertical lifting, with increased traction load. In addition, the hoist can be used with any type of rope or cable.

Claims (1)

A portable elevator comprising rollers, characterized in that it comprises a housing in which the engine is located, connected via a gearbox to a traction roller made with a recess, while a strap with a fixing mechanism mounted on it and fixed pressure rollers is mounted on the housing, and the housing has a hole for securing movable objects.