CN105148417A - Speed-adjustable descending device with single handle - Google Patents

Abstract

The invention relates to a speed-adjustable descending device with a single handle. The device comprises the speed adjusting handle and a main body bracket, wherein the speed adjusting handle is distributed at the left side of the main body bracket, and the middle of the speed adjusting handle is in rotary connection with the main body bracket through a pin B. According to the device, the handle can be outwards pulled to achieve the purpose of adjusting the speed; the operation is convenient; the speed adjusting range can be determined according to the handle pulling range, and stepless speed adjustment can be achieved. The device is simple in structure, low in cost, convenient to carry on, and suitable for popularization and application, and can be applied to working at heights, rapid descending during mountaineering, escaping at high altitudes, etc.

Description

A single-handle adjustable speed descender

technical field

The invention relates to a speed-adjustable descender with a single handle, which belongs to a high-altitude rapid descent device.

Background technique

Downhill devices have been applied in more and more occasions, such as high-altitude operations, mountaineering downhill, high-altitude rescue, etc. In downhill, the most commonly used is rope downhill. Rope rappelling uses ropes to lower a person from a high place to a low place. How to use ropes to safely and stably descend people has become an important content in the study of mountaineering descenders.

Existing downhill device mostly utilizes a kind of descender that the rope passes through the belt hole, and adjusts the friction between the rope and the descender by adjusting the number of holes through which the rope passes through the descender. There is also a descender that utilizes mechanical friction, pulls the handle, and uses the draw-in slot at the end of the handle to clamp the rope to achieve the purpose of reducing the speed. But this kind of descender can't realize self-active control descending speed, causes descending speed to be very fast, has certain danger. The existing descenders are deficient in self-controlled speed regulation, stability and ease of operation.

Contents of the invention

The object of the present invention is to provide a single-handle adjustable speed descender for the process of climbing and descending in view of the defects in the prior art. It has the advantages of good stability, easy operation and continuous speed regulation.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A speed-adjustable descender with a single handle, including a speed-regulating handle and a main body bracket; its feature is that the speed-regulating handle is distributed on the left side of the main body bracket, and the center is rotationally connected with the main body bracket through a second pin.

The speed regulating handle includes a spring support, an adjustment spring, a small friction wheel, a handle and a lower fixed pulley, the upper end of the spring support is connected to the upper end of the handle by movement, and the lower end is rotatably connected to the small friction wheel through a pin; the adjustment spring is sleeved on the spring The middle part of the bracket; the middle part of the handle is fixedly connected with the lower fixed pulley by screws.

The main frame includes a rear bracket, a rivet, an upper fixed pulley, a pin, a second pin and a front bracket, the upper end of the rear bracket is fixedly connected to one end of the rivet, the upper middle part is fixedly connected to the upper fixed pulley through the A pin, and the middle part is fixed through the second pin. It is rotatably connected with the middle part of the front bracket, and the upper end and the upper middle part of the front bracket are provided with grooves.

Compared with the prior art, the present invention has the following obvious outstanding features and significant technical progress:

In the present invention, the purpose of speed regulation can be achieved by pulling the handle outward, the operation is convenient, the range of speed regulation can be determined according to the range of pulling the handle, and stepless speed regulation can be realized. The invention is simple in structure, low in cost, convenient to carry around, and helpful for popularization and application. It can be applied to high-altitude operations, mountaineering downhill, high-altitude escape, etc.

Description of drawings

Fig. 1 is a front view of a single-handle adjustable-speed descender of the present invention.

Fig. 2 is a schematic diagram of a single-handle adjustable-speed descender with ropes of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:

As shown in Figure 1, a single-handle adjustable speed descender includes a speed-regulating handle I and a main body bracket II; its feature is that the speed-regulating handle I is distributed on the left side of the main body bracket II, and the second pin 8 is connected to the middle The main body bracket II is rotatably connected.

As shown in Figure 2, the speed control handle I includes a spring support 1, an adjustment spring 2, a small friction wheel 3, a handle 9 and a lower fixed pulley 11, the upper end of the spring support 1 is connected to the upper end of the handle 9, and the lower end is connected by a pin It is rotationally connected with the small friction wheel 3; the adjustment spring 2 is set in the middle of the spring support 1; the middle of the handle 9 is fixedly connected with the lower fixed pulley 11 by screws.

The main frame II includes a rear frame 4, a rivet 5, an upper fixed pulley 12, a pin 6, a second pin 8, and a front frame 7. The upper end of the rear frame 4 is fixedly connected with one end of the rivet 5, and the middle and upper parts are connected by the pin 6 and the front frame 7. Upper fixed pulley 12 is fixedly connected, and the middle part is rotationally connected with front support 7 middle part by second pin 8, and the upper end and middle upper part of described front support 7 have grooves.

The working principle of a single-handle adjustable speed descender of the present invention is described as follows in conjunction with the accompanying drawings:

First, rotate the front bracket 7, wind the rope 10 around the upper fixed pulley 12 and the lower fixed pulley 11, rotate the front bracket 7 back to the original position, and hook the end hook of the front bracket 7 to the waist of the human body. On the safety belt, during the descent, one hand pulls the speed control handle 1 outwards, and the small friction wheel 3 squeezes the rope 10 to achieve the purpose of deceleration. The degree of extrusion is determined by the power of the hand pull. When the pull is tightened to a certain extent, the human body stops sliding. The speed adjustment of the descender depends on the degree to which the speed control handle is tightened by hand.

Claims (3)

1. A single-handle adjustable speed descender, including a speed-regulating handle (I) and a main body bracket (II); it is characterized in that: the speed-regulating handle (I) is distributed on the left side of the main body bracket (II), and the middle passes through The second pin (8) is rotationally connected with the main body bracket (II). 2. The single-handle adjustable speed descender according to claim 1, characterized in that, the speed-regulating handle (I) includes a spring support (1), an adjustment spring (2), a small friction wheel (3), a handle (9) and the lower fixed pulley (11), the upper end of the spring support (1) is connected to the upper end of the handle (9) for movement, and the lower end is connected to the small friction wheel (3) through pins; the adjustment spring (2) is set on The middle part of the spring support (1); the middle part of the handle (9) is fixedly connected with the lower fixed pulley (11) by screws. 3. The single-handle adjustable speed descender according to claim 1, characterized in that, the main body bracket (II) includes a rear bracket (4), a rivet (5), an upper fixed pulley (12), a pin ( 6), the second pin (8) and the front bracket (7), the upper end of the rear bracket (4) is fixedly connected with one end of the rivet (5), and the upper middle part is fixedly connected with the upper fixed pulley (12) through the A pin (6), The middle part is rotationally connected with the middle part of the front bracket (7) through the second pin (8), and the upper end and middle upper part of the front bracket (7) have grooves.