CN105233476A - Adjustable speed descender - Google Patents

Abstract

The invention relates to an adjustable speed descender, comprising a left speed-adjusting handle, a right speed-adjusting handle and a main support. A handle return spring in the lower middle of the left speed-adjusting handle is fixedly connected with the lower middle of the right speed-adjusting handle. The left speed-adjusting handle and the right speed-adjusting handle are distributed symmetrically on two sides of the main support, and their middles are rotatably connected with the main support through a pin. Speed may be adjusted by holding the handles by hand, thus operating is convenient. Speed adjusting range may be determined according to hand holding force, and stepless speed adjusting may be given. The descender may be fixed safely to any aerial position through a fixing pin. The adjustable speed descender is simple in structure, convenient to carry along, low in manufacturing cost, conducive to popularization and application, and widely applicable to aerial operation, downhill, aerial escape and the like.

Description

An adjustable speed descender

technical field

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

Background technique

With the improvement of people's living standards, mountaineering tourism has become an important way for more people to enjoy life and relax themselves. Downhill climbing has become a favorite sport for mountaineering enthusiasts. In mountaineering 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 rappelling is mostly a kind of descender that utilizes the rope to pass 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 autonomous and active control descending speed, causes descending speed to be very fast, has certain danger. In addition, when a person is in the process of descending, the hand still needs to hold the rope all the time to assist the process of descending. When it is necessary to stay at a certain position in the air, the operation is more cumbersome. 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 an adjustable speed descender for the process of mountain climbing and descent aiming at the defects existing 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, comprising a left speed-regulating handle, a right speed-regulating handle and a main body bracket; it is characterized in that: the recovery spring of the middle and lower part of the left speed-regulating handle is fixedly connected with the middle and lower part of the right speed-regulating handle; the left speed-regulating handle The handle and the right speed-regulating handle are symmetrically distributed on both sides of the main frame, and the middle part is rotationally connected with the main body frame through a lower connecting pin.

The left speed regulating handle comprises a left spring support, a left adjustment spring, a left handle and a left small friction wheel, the upper end of the left spring support is connected to the upper end of the left handle by moving, and the lower end is connected to the left small friction wheel by a pin; the left adjustment The spring sleeve is in the middle part of the left spring bracket.

The right speed regulating handle includes a right spring support, a right adjustment spring, a right handle, a right small friction wheel, a handle recovery spring, a bottom pin and a fixed hook. The pin is rotatably connected with the right small friction wheel; the right adjustment spring is set in the middle of the right spring bracket; one end of the handle recovery spring is fixedly connected with the right handle, and the other end is fixedly connected with the left handle; the fixed hook is rotated through the bottom pin and the lower end of the right handle connect.

The main frame includes a rear frame, a rivet, an upper fixed pulley, a middle connecting pin, a lower fixed pulley, a lower connecting pin and a front frame. The pulley is fixedly connected, and the middle part is fixedly connected with the lower fixed pulley through the lower connecting pin; the middle part of the front bracket is rotationally connected with the middle part of the rear bracket through the lower connecting pin, and the upper end and middle upper part of the front bracket have grooves.

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

The purpose of speed regulation can be achieved by holding the handle in the present invention, which is convenient to operate, the range of speed regulation can be determined according to the grip force of the hand, and stepless speed regulation can be realized. The descender of the present invention can be safely fixed at any position in high altitude through the fixing pin. The invention has simple structure, is convenient to carry, has low manufacturing cost, is helpful for popularization and application, and can be applied to high-altitude operations, mountain climbing and rapid descent, high-altitude escape and the like.

Description of drawings

Fig. 1 is a front view of an adjustable speed descender of the present invention.

Fig. 2 is a schematic diagram of a belt rope of an adjustable speed descender of the present invention.

detailed description

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

As shown in Figure 1, a speed-adjustable descender includes a left speed-regulating handle I, a right speed-regulating handle II and a main body bracket III; The middle and lower parts of the speed control handle II are fixedly connected; the left speed control handle I and the right speed control handle II are symmetrically distributed on both sides of the main frame III, and the middle is rotationally connected with the main body support III through the lower connecting pin 14.

As shown in Figure 2, the left speed regulating handle I includes a left spring support 1, a left adjustment spring 2, a left handle 3 and a left small friction wheel 4, and the upper end of the left spring support 1 is connected to the upper end of the left handle 3 for movement, while The lower end is rotationally connected with the left small friction wheel 4 through a pin;

The right speed regulating handle II includes a right spring support 10, a right adjustment spring 9, a right handle 8, a small right friction wheel 11, a handle recovery spring 18, a bottom pin 17 and a fixed hook 16, and the upper end of the right spring support 10 is connected to the The upper end of the right handle 8 is moved and connected, while the lower end is rotationally connected with the right small friction wheel 11 through a pin; the right adjustment spring 9 is enclosed within the middle part of the right spring support 10; Fixed connection; the fixed hook 16 is rotationally connected with the lower end of the right handle 8 through the bottom pin 17 .

The main body bracket III includes a rear bracket 5, a rivet 6, an upper fixed pulley 19, a middle connecting pin 12, a lower fixed pulley 15, a lower connecting pin 14 and a front bracket 7, and the upper end of the rear bracket 5 is fixedly connected to one end of the rivet 6 , the middle upper part is fixedly connected with the upper fixed pulley 19 through the middle connecting pin 12, and the middle part is fixedly connected with the lower fixed pulley 15 through the lower connecting pin 14; The upper end and middle upper part of support 7 have grooves.

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

First, rotate the front bracket 7, wind the rope 13 around the upper fixed pulley 19 and the lower fixed pulley 15, rotate the front bracket 7 back to the original position, and hook the end hook of the front bracket 7 to the safety belt tied at the waist of the human body. Put it on, and in the process of descending, hold the left speed control handle I and the right speed control handle II tightly with one hand, and the left small friction wheel 4 and the right small friction wheel 11 squeeze the rope 13 to play the purpose of deceleration. Extrusion degree is determined by hand gripping force, when gripping to a certain degree, human body stops to slide down, this moment buckles fixed hook 16, after loosening hand, descender fixes not to slide down again. The speed adjustment of the descender depends on how tightly the hand grips the speed control handle.

Claims (4)

1. an adjustable speed drop device, comprises left speed adjusting lever (I), right speed adjusting lever (II) and main body rack (III); It is characterized in that: described left speed adjusting lever (I) middle and lower part handle recovers spring (18) and is fixedly connected with right speed adjusting lever (II) middle and lower part; Left speed adjusting lever (I), right speed adjusting lever (II) are symmetrically distributed in main body rack (III) both sides, and centre is rotationally connected by lower connection pin (14) and main body rack (III).

2. adjustable speed drop device according to claim 1, it is characterized in that, described left speed adjusting lever (I) comprises left spring support (1), left regulating spring (2), left handle (3) and left friction wheel (4), described left spring support (1) upper end and left handle (3) upper end mobile link, and lower end is taken turns (4) by pin and left friction and is rotationally connected; Left regulating spring (2) is enclosed within left spring support (1) middle part.

3. adjustable speed drop device according to claim 1, it is characterized in that, described right speed adjusting lever (II) comprises right spring support (10), right regulating spring (9), right handles (8), right friction wheel (11), handle recovery spring (18), bottom pin (17) and stay hook (16), described right spring support (10) upper end and right handles (8) upper end mobile link, and lower end is taken turns (11) by pin and right friction and is rotationally connected; Right regulating spring (9) is enclosed within right spring support (10) middle part; Handle recovers spring (18) one end and is fixedly connected with right handles (8), and the other end is fixedly connected with left handle (3); Described stay hook (16) is rotationally connected by bottom pin (17) and right handles (8) lower end.

4. adjustable speed drop device according to claim 1, it is characterized in that, described main body rack (III) comprises after-poppet (5), rivet (6), upper fixed block (19), middle connection pin (12), lower fixed block (15), lower connection pin (14) and fore-stock (7), described after-poppet (5) upper end is fixedly connected with rivet (6) one end, middle and upper part is fixedly connected with upper fixed block (19) by middle connection pin (12), and middle part is fixedly connected with lower fixed block (15) by lower connection pin (14); Fore-stock (7) middle part is rotationally connected by lower connection pin (14) and after-poppet (5) middle part, and upper end and the middle and upper part of described fore-stock (7) have groove.