CN2431185Y - Brake for travelling booster of hand car - Google Patents

Abstract

The utility model relates to a brake with a dual-limit type, which is used for mobility aids. The utility model comprises an outer box body with a thin wall and a handle which is composed of a head part and a handle part, and the head part is provided with a cambered groove. Pressing buckles are respectively pressed and matched with both ends of the cambered groove, the head part of the handle is fixed on one side wall through a pin column to be contained in an inner cavity, and the pin column is inserted in the cambered groove. A first sliding block and a secondary sliding block can be pivoted with the head part of the handle through a sliding groove; a brake line passes through the outer box body and the head part of each sliding block to be fixed on the head part of the sliding block by a fixed pin. Two spacing operation modes of pressing upwards and downwards for the handle can be adopted by the utility model to cause vehicles to be braked and unlocked, and the utility model is very convenient and reliable.

Description

The walk helper brake

The utility model relates to a kind of brake, relates to a kind of brake that is used for walk helper specifically.

Walk helper in the market, though as the go-cart that is used to put article can avoid the load of portable weight and make things convenient for the user to take the thing walking, simultaneously because very light and handy, thereby can be widely used in shopping and tourism; But, can not adapt to the situation that various needs brakings are stopped effectively, thereby walk helper is in use safe and reliable inadequately because light and handy nimble drg (to call brake in the following text) is not installed.And existing various types of brakes at present all can not be suitable for the light go-cart of this class.

Therefore, the purpose of this utility model provides that a kind of structure applicable to walk helper is light and handy, the brake of convenient and reliable operation.

For achieving the above object, the utility model provides a kind of pair of limit formula brake, it comprises: a thin-walled outter box, be formed with the upper level through hole and the lower lumen that are connected, inner chamber is made of two relative sidewall and left end walls, be formed with the level perforation on the left end wall, described two sidewalls are formed with two pairs of relative pin-and-holes; One handle of forming by the head of shank and its curved recess in end, arc-shaped depression portion is formed with the groove that is embedded in parallel sided, two ends of arc-shaped depression portion are formed with the through hole with lateral vertical, be provided with pin-and-hole along leaving recess one determining deviation on the horizontal center line of arc-shaped depression portion, leave at vertical center line and to be provided with a deep-slotted chip breaker on the one spacing by pin-and-hole, the upside of the one end and the other end is respectively equipped with through hole and is embedded each elasticity clinching in through hole, the handle head passes each pin-and-hole by following pin and stretches out two sidewalls and be fixed on the sidewall with in the intracavity space that is contained in described outter box, and pin inserts in the described deep-slotted chip breaker slidably on it; First slide block and second slide block of forming by head and pivoted arm respectively, the head of each slide block is formed with through hole respectively and pivoted arm forms chute respectively, the head of first slide block also is formed with and the vertical caulking groove of through hole line of centers and the notch that is communicated with described caulking groove of side thereon, the head of second slide block also is formed with groove, and the head of second slide block is embedded in the caulking groove of first slide block so that described groove is relative with described notch; The pivoted arm of described slide block passes chute by latch and is connected with the through hole of handle head; The inner chamber of outter box is stretched in the level perforation that brake cable is passed described outter box, and its inserting end passes described notch and groove and is fixed on by set pin in the through hole of slider head.

Can adopt duroplasts injection molded at handle of the present utility model and outter box, and described clinching can adopt metallic material to be stamped to form.

Adopt said structure of the present utility model, when needing reducing speed in the walking or stopping, as long as the shank of handle is upwards pressed, shank just can pin be that fulcrum pivots leverage takes place like this, the handle head drives the chute of second slide block and then second (descending) slide block movement is fastened by right clinching until the pin in deep-slotted chip breaker by following latch, this moment, two slide blocks were in the approaching straight state of exhibition so that brake cable stretches, thereby travelling aided bicycle is braked; And when the needs original place stops, can be with the pivoted arm of handle to pressing down, this moment first (on) slide block take place with above-mentioned second (on) slide block similarly motion pushed down by left clinching until the pin in deep-slotted chip breaker, make two slide blocks be in the approaching straight state of exhibition equally so that brake cable stretches and car is braked, when desire continues action, as long as handle is upwards pressed, gets final product automatic unlocking.This shows that the user can select different brake mode voluntarily according to different needs, and easy to operate reliable.In addition, because it is simple in structure light and handy, durable wear-resisting, not yielding, not only safe and reliable, and suitable batch manufacturing, thereby productive costs is low.

Hereinafter with reference to accompanying drawing to the specific descriptions of a preferred embodiment of the present utility model to further specify the purpose of this utility model, characteristics and advantage.

Fig. 1 is that the walk helper brake of an embodiment of the present utility model is installed in the assembly structure scheme drawing on the handle tube, and brake is in not mode of operation among the figure;

Fig. 2 be Fig. 1 embodiment walk helper brake outter box work the front view of partly cutting open;

Fig. 3 is the right elevation of Fig. 2;

Fig. 4 is the front view of brake handle of the walk helper brake of Fig. 1 embodiment;

Fig. 5 is a upward view of having made Fig. 4 of biopsy cavity marker devices along the A-A line of Fig. 4;

Fig. 6 is the front view of first slide block of the walk helper brake of Fig. 1 embodiment;

Fig. 7 is the longitudinal sectional view of Fig. 6;

Fig. 8 is the front view of second slide block of the walk helper brake of Fig. 1 embodiment;

Fig. 9 is the longitudinal sectional view of Fig. 8;

Figure 10 is the structural representation of walk helper brake when handle is in depressed position of Fig. 1 embodiment;

Figure 11 is the structural representation of walk helper brake when handle is in the pressure position of Fig. 1 embodiment;

Figure 12 is that walk helper brake of the present utility model is installed in the travelling aided bicycle assembly scheme drawing on the travelling aided bicycle.

As shown in Figure 1, the two limit formulas brake that is used for walk helper such as hand barrow of the present utility model, it is formed by connecting by articulated structure such as pin and latch by outter box 1, handle 29, first slide block 20 and second slide block 21, and is specific as follows described.As shown in Figure 2; thin-walled outter box 1 is formed with upper level through hole 2 and the lower lumen 9 that is connected; the handle tube 31 of car passes horizontal through hole 2 and fixed by the holding screw 32 that penetrates the screw 12 on the boss 11; its inner chamber 9 is made of two relative sidewall 43,43 and left end walls 8; be formed with level perforation 10 on the left end wall 8; brake cable stem 23 is plugged in this hole; brake cable is passed stem 23 endoporus and stretched in the inner chamber 9 of outter box 1, described two sidewalls 43,43 vertically are being formed with upper and lower pin-and-hole 3,4 near right-hand member.Handle 29 is made up of the head 14 that shank 13 and its left part are formed with arc-shaped depression portion 44, its arc-shaped depression portion be formed with parallel sided to be embedded in groove 16 (as described below, provide the pivot spaces of slide block), two ends of arc-shaped depression portion 44 are formed with the through hole 15 with lateral vertical, 15, leave recess one determining deviation along the horizontal center line M-M of arc-shaped depression portion 44 and be provided with pin-and-hole 4, be provided with a deep-slotted chip breaker 18 leaving its one spacing place, center by the vertical center line N-N direction of pin-and-hole 4, pin-and-hole 3 line of centerss are positioned on the line of centers of deep-slotted chip breaker 18, the right-hand member place of deep-slotted chip breaker 18 and left end upside place form the through hole that is communicated with deep-slotted chip breaker respectively, each is embedded with elasticity clinching 19 in through hole, 19, described elasticity clinching 19 is one to have the Elastic Cylindrical sheet of opening, and handle head 14 passes pin-and-hole 4 by pin 17 and 27,3 stretch out two sidewalls 43.Give captive joint after 43, like this, handle head 14 just is contained in the intracavity space 9 of described outter box, its upper end pin 27 inserts in the described deep-slotted chip breaker 18 slidably, and in deep-slotted chip breaker 18, be pivoted to when aiming at each clinching 19,19 (below give will be described) when pin 27, pushed down the location by clinching.First slide block 20 and second slide block 21 are made up of head 41,42 and pivoted arm 37,37 respectively, the head 41,42 of each slide block is formed with through hole 36,36 respectively and pivoted arm 37,37 is formed with chute 25, the head of first slide block 20 also is formed with and vertical caulking groove 38 of through hole line of centers and the notch 39 that is communicated with described caulking groove 38 on the side thereon, the head 42 that the head 42 of second slide block 21 also is formed with groove 40, the second slide blocks 21 is embedded in the caulking groove 39 of first slide block 20 so that described groove 40 is relative with described notch 39; The pivoted arm 37,37 of each slide block passes the through hole 15,15 of chute 25, handle head 14 by latch 26,26 and captives joint with the handle head, so that handle make pin 28 for balance pivot when rotating latch 26,26 effect chutes 25,25 two slide blocks are relatively rotated, promptly launch or draw in.Brake cable 24 is passed the inner chamber 9 that stem 23 in the level perforation 10 that is provided in outter box 1 stretches into outter box 1, and the inserting end of brake cable passes the groove 40 of the notch 39 of first slide block 20 and second slide block 21 and is fixed on by set pin 36 in the through hole 36 of head 41,42 of each slide block 20,21.Outter box 1 and handle 29 are injection molded with duroplasts, and clinching 19 is to make with metallic material.Comfortable feel when changing hands handle in order to press is made sphere with handle end 45.

Specify above-mentioned walk helper brake below from operating process.As shown in figure 11, when needing reducing speed in the walking or stopping, the shank 13 of handle 29 is upwards pressed, like this, handle is that leverage takes place the fulcrum pivot with pin 28 just, handle head 14 drives the chute 25 of second slide block 21 by following latch 26 and then 21 motions of second (descending) slide block is fastened by right clinching 19 until the pin in deep-slotted chip breaker 18 26, this moment, two slide blocks 20,21 were near the straight state of exhibition so that brake cable 24 stretches, and the trailing wheel 35 of hand barrow 46 or front-wheel 34 clips are braked car; And when the needs original place stops, can hold spherical pommel 45 with the shank 13 of handle 29 to pressing down, this moment first (on) slide block 20 take place with above-mentioned second (on) slide block 21 similarly motion pushed down by left clinching 19 until the pin in deep-slotted chip breaker 27, make two slide blocks 20,21 be in the approaching straight state of exhibition equally so that brake cable 24 stretches and car 46 is braked, when desire continues action, as long as the shank 13 of handle is upwards pressed, gets final product automatic unlocking.The mode of two kinds of two spacing brakings like this is easy to operate and very reliable.

Claims (4)

1. walk helper brake, it comprises: a thin-walled outter box, and it is formed with upper level through hole and the lower lumen that is connected, and inner chamber is made of two relative sidewall and left end walls, be formed with the level perforation on the left end wall, described two sidewalls are formed with two pairs of relative pin-and-holes; One handle of forming by the head of shank and its curved recess in end, arc-shaped depression portion is formed with the groove that is embedded in parallel sided, two ends of arc-shaped depression portion are formed with the through hole with lateral vertical, be provided with pin-and-hole along leaving recess one determining deviation on the horizontal center line of arc-shaped depression portion, leave at vertical center line and to be provided with a deep-slotted chip breaker on the one spacing by pin-and-hole, the upside of the one end and the other end is respectively equipped with through hole and the elasticity clinching that is embedded in each through hole, the handle head passes each pin-and-hole by following pin and stretches out two sidewalls and be fixed on the sidewall with in the intracavity space that is contained in described outter box, and pin inserts in the described deep-slotted chip breaker slidably on it; First slide block and second slide block of forming by head and pivoted arm respectively, the head of each slide block is formed with through hole respectively and pivoted arm forms chute respectively, the head of first slide block also is formed with and the vertical caulking groove of through hole line of centers and the notch that is communicated with described caulking groove of side thereon, the head of second slide block also is formed with groove, and the head of second slide block is embedded in the caulking groove of first slide block so that described groove is relative with described notch; The pivoted arm of described slide block passes chute by latch and is connected with the through hole of handle head; The inner chamber of outter box is stretched in the level perforation that brake cable is passed described outter box, and its inserting end passes described notch and groove and is fixed on by set pin in the through hole of slider head.

2. walk helper brake as claimed in claim 1 is characterized in that described handle and outter box can adopt duroplasts to be injection molded into.

3. walk helper brake as claimed in claim 1 or 2 is characterized in that described clinching can adopt metallic material to be stamped to form.

4. walk helper brake as claimed in claim 1 or 2 is characterized in that the handle end of described handle is spherical in shape.

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