CN2479780Y - Ratio-changing mechanism of multi-fold automatic opening and closing umbrella - Google Patents

Abstract

A ratio-changing mechanism of multi-fold automatic umbrella is matched with an umbrella opening mechanism, a middle rod combined part and a handle control mechanism to implement, wherein a pulley is arranged on an end pulley seat of the ratio-changing mechanism, one end of an inner wire pull rope crosses over the pulley of a pulley body and then passes through the pulley of the end pulley seat to be fixed at the other end of the pulley body, the other end of the inner wire pull rope passes through the end pulley seat to be fixed with a buckle, one end of an outer wire pull rope is fixed at one end of the pulley body, the other end of the outer wire pull rope is fixed on a lower nest of the umbrella opening mechanism, and the middle rod combined part is formed by sleeving four sections of middle. Therefore, the inner wire pull rope and the outer wire pull rope can realize the three-to-one transformation ratio relation to match with the automatic umbrella opening and closing structure of the four-section middle rod.

Description

Ratio-changing mechanism of multi-fold automatic opening and closing umbrella

The utility model relates to a variable-ratio mechanism for automatically opening and closing a multi-fold umbrella, which belongs to the field of umbrellas.

At present, the umbrella industry is constantly innovating, and the changes in multi-fold automatic opening and closing umbrellas are changing with each passing day. The multi-fold automatic opening and closing umbrella we see now is mainly composed of an umbrella opening mechanism, a middle rod combination part, a variable ratio mechanism and a handle control mechanism. The middle rod component is composed of a traction spring and three middle rods. , in order to cooperate with the middle rod components, as shown in Figure 1, its variable ratio mechanism 1' is mainly composed of an outer cable 11', an inner cable 12', a pulley body 13', a terminal pulley seat 14', A buckle 15' and a sleeve 16', one end 112' of the outer cable 11' is fixed on the lower nest of the umbrella opening mechanism (not shown in the figure), and the other end 111' is fixed on the upper end of the pulley body 13' 131', and one end 121' of the inner cable 12' crosses the pulley 132' on the pulley body 13' and is fixed on the end pulley seat 14', and the other end 122' passes through the end pulley seat 14' and is connected with the buckle The head 15' is fixed together, the inner cable pulley 12', the pulley body 13' and the end pulley seat 14' are placed in the sleeve 16', wherein the end pulley seat 14' is fixed at the lower end of the sleeve 16'. As shown in Figure 2, through the two-to-one ratio relationship between the inner cable 12' and the outer cable 11', the folding relationship of the three-section middle rod is matched, that is, when the umbrella is opened, the sleeve 16' is pulling Under the drive of the spring, it quickly bounces up, and drives the inner line stay cord 12' to stretch the length of the two middle sticks, while the outer line stay cord 11' only retracts the length of one middle stick; otherwise, it is the action of closing the umbrella.

It can be seen from the above structure that this variable ratio mechanism is only suitable for automatic folding umbrellas with three-section mid-rods, but the variable-ratio relationship between the inner and outer stay cords cannot be realized for the four-section mid-rod retractable umbrella.

Therefore the purpose of this utility model is to provide a kind of variable ratio mechanism that is suitable for the multi-fold automatic opening and closing umbrella of the rod variable ratio relationship in four sections.

In order to achieve the above object, the solution of the utility model is: the variable ratio mechanism of multi-fold automatic opening and closing of the umbrella, which is implemented in conjunction with the umbrella opening mechanism, the middle stick combination part and the handle control mechanism; wherein the umbrella opening mechanism is composed of the upper nest, It is composed of the lower nest and the umbrella rib; the variable ratio mechanism includes an outer cable, an inner cable, a pulley body, a pulley seat at one end, a buckle head and a sleeve, and one end of the outer cable is fixed on one end of the pulley body , the other end is fixed on the lower nest of the umbrella opening mechanism, the inner cable pulley, the pulley body and the end pulley seat are placed in the sleeve, and the end pulley seat is fixed on the lower end of the sleeve. The key of the utility model lies in: the variable ratio There is a pulley on the end pulley seat of the mechanism, and one end of the inner cable stays across the pulley of the pulley body, then passes through the pulley of the end pulley seat and is fixed on the other end of the pulley body; the other end of the inner cable stays through the end The head pulley seat and the buckle head are fixed together; the middle rod is composed of four middle rods.

After adopting the above scheme, due to the setting of the pulley on the pulley seat at the end, the inner cable stays through the two pulleys successively and is accommodated in the sleeve, then the inner cable and the outer cable realize a three-to-one ratio relationship , because the ratio increases, the stroke of the traction spring increases, thereby increasing the power to open the parachute.

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Fig. 1 is the three-dimensional sectional view (1) of customary article;

Fig. 2 is the three-dimensional sectional view (2) of customary article;

Fig. 3 is a three-dimensional combined sectional view of the utility model;

Fig. 4 is the enlarged view of the terminal pulley seat of the present invention;

Fig. 5 is the schematic diagram of the state of opening the umbrella of the utility model;

Fig. 6 is a schematic diagram of the state of retracting the umbrella of the utility model.

The utility model is implemented in conjunction with the umbrella opening mechanism, the middle stick component and the handle control mechanism (not shown in the figure). Not to be repeated here.

Below in conjunction with shown in Fig. 3, the variable ratio mechanism 1 of the present utility model still comprises an outer wire stay cord 11, an inner wire stay cord 12, a pulley body 13, an end pulley seat 14, a buckle head 15 and a Sleeve 16; One end 111 of outer line stay cord 11 is fixed on the upper end 131 of pulley body 13, and the other end 112 is fixed on the lower nest (not shown in the figure) of umbrella opening mechanism, cooperates as shown in Figure 4, the key of the present utility model In that: a pulley 141 is provided above the end pulley seat 14, and a through hole 142 is provided at the bottom of the end pulley seat 14 so that the inner line stay rope 12 can pass through, and one end 121 of the inner line stay rope 12 crosses the pulley 132 of the pulley body 13 , then pass through the pulley 141 of the end pulley seat 14 and fix it on the other end 133 of the pulley body 13; ; The inner cable 12, the pulley body 13 and the end pulley seat 14 are placed in the sleeve 16, and the end pulley seat 14 is fixed under the sleeve 16.

The middle rod component 2 is mainly formed by socketing a traction spring 21 and four middle rods 22 (see Figs. 5 and 6).

When the utility model is applied to the state of opening the umbrella, as shown in Figure 5, the four-section middle rod 22 is in the extended state, and since the buckle head 15 is controlled by the handle control mechanism, the traction spring 21 will drive the sleeve 16 upward Motion, again because of interior line stay cord 12 successively across two pulleys 132,141, then interior line stay cord 12 can extend down the length of a stick in three joints with respect to end pulley seat 14, simultaneously, exterior line stay cord 11 just can to Extend the length of a stick in the sleeve 16, so that the three-to-one ratio relationship between the inside stay cord 12 and the outside stay cord 11 can be realized, so as to cooperate with the automatic opening and closing umbrella of the four-section middle stick structure.

When the utility model is applied to the umbrella retracting state, as shown in Figure 6, the four-section middle rod 22 is in the retracted state, and the outer wire stay rope 11 is moved downward along the outer wall of the middle rod 22 under the influence of the lower nest of the umbrella opening mechanism. The nest direction extends the length of a stick in one section, and the inner cable stay cord 12 only needs to extend the length of a stick in the sleeve 16 under the action of the two pulleys 132,141.

In the utility model, due to the ratio relationship of three to one, the stroke of the traction spring is increased, thereby amplifying the power of opening the parachute.

Claims (1)

1, roll over the transformation ratio mechanism of automatic umbrella folding and unfolding, it cooperates parachute deployment means, middle excellent built-up section and handgrip controlling organization and implements more; Wherein transformation ratio mechanism comprises an outside line stay cord, an interior lines stay cord, a pulley body, a termination pulley base, a discount and a sleeve, outside line stay cord one end is fixed on an end of pulley body, the other end is fixed on the following nest of parachute deployment means, interior lines stay cord, pulley body and termination pulley base place in the sleeve, the termination pulley base is fixed in the lower end of sleeve, it is characterized in that: the termination pulley base of transformation ratio mechanism is provided with a pulley, one end span of interior lines stay cord is crossed the pulley of pulley body, passes the other end that is fixed on pulley body behind the pulley of termination pulley base again; The other end of interior lines stay cord passes the termination pulley base and discount is fixed together; In excellent part by four the joint in rod be socketed to form.

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