CN201451736U

CN201451736U - Multi-force point changeable labor-saving umbrella

Info

Publication number: CN201451736U
Application number: CN2009200095792U
Authority: CN
Inventors: 马准胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-24
Filing date: 2009-03-24
Publication date: 2010-05-12
Anticipated expiration: 2019-03-24

Abstract

The utility model relates to a multi-force point changeable labor-saving umbrella. The purpose of the utility model is to provide a novel labor-saving umbrella with multiple force points for selection. The umbrella comprises an upper nest, a middle nest, a lower nest, long ribs, short ribs, supporting rods and a retractable rod. The umbrella has the following characteristics that: the lower nest is fixed, and the short ribs are connected with the lower nest and the long ribs; the supporting rods are connected with the long ribs and the middle nest; and the retractable rods are connected with the upper nest and the middle nest. Since the utility model adopts the multi-force point changeable structure, by changing supporting points, the weight of an umbrella fabric is utilized to balance the force needed for unfurling and furling the umbrella, so that the umbrella can be easily unfurled and furled. When the umbrella needs to be unfurled, the lower nest is fixed, the middle nest is pulled downwards, the upper nest goes down at the same time, the retractable rod slides downwards, the weight of the umbrella fabric acts on the long ribs by means of the supporting rods, the connecting points of the supporting rods and the long ribs serve as the supporting points, and the weight of the umbrella fabric balances the force needed for unfurling the umbrella, so that the umbrella can be easily unfurled; and when the umbrella needs to be furled, the middle nest is pushed upwards, the retractable rod slides upwards at the same time, the barycenter of the umbrella goes down, the short ribs act on the long ribs, the connecting points of the short ribs and the long ribs serve as the supporting points, the weight of the umbrella fabric balances the force for furling the umbrella by means of the supporting points, meanwhile, since the retractable rod slides upwards, the height of the umbrella is increased, and thereby blockage is prevented when the umbrella is furled.

Description

The laborsaving umbrella of many forces variant

Technical field

The utility model relates to the laborsaving umbrella of a kind of many forces variant, provides many forces to support folded and unfolded umbrella, and this utility model technology is used more obvious aspect large-scale parachute kit.

Background technology

Common large-scale parachute kit often has only a fixing strong point, and during parachute-opening, all centers of gravity drop on the support bar, and parachute-opening is extremely required great effort, and the parachute-opening stroke big, take up room bigger; When closing one's umbrella, long bone is close together overhead, if things such as table, chair are arranged below umbrella, umbrella will be blocked or can't draw at all.The utility model provides a kind of novel laborsaving umbrella of force variant, can be good at solving the problem that large-scale parachute kit exists, and makes the parachute kit folding light, steady, laborsaving.

The utility model content

Variant laborsaving umbrella in many forces comprises: go up nest, middle nest, following nest, long bone, short bone, support bar, expansion link, it is characterized in that nest is fixed down, short bone connects nest and long bone down; Support bar connects long bone and middle nest; Expansion link connects goes up nest and middle nest.The utility model adopts many forces variant structure, by the conversion strong point, utilizes the gravity of umbrella cover self to come the balance needed power of opening, close one's umbrella, and makes parachute kit light when opening and closing, laborsaving.During parachute-opening, following nest is fixed, drop-down middle nest, go up simultaneously nest toward descending, expansion link is to lower slider, and the gravity of umbrella cover acts on long bone by support bar, and with the tie point of support bar and long bone as the strong point, the gravitational equilibrium of umbrella cover the power that need use of parachute-opening, make parachute-opening light, laborsaving; When closing one's umbrella, nest in upwards promoting, expansion link upwards slides simultaneously, the center of gravity of umbrella cover descends, and short bone acts on long bone, and with the tie point of short bone and long bone be the strong point, the gravity of umbrella cover by this strong point balance the power of the usefulness that closes one's umbrella, simultaneously, be equivalent to increase the height of umbrella because expansion link upwards slides, thus avoided that umbrella draws in the time be blocked.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the laborsaving umbrella schematic diagram of many forces variant.

Among Fig. 1,1. support bar, 2. short bone, 3. long bone, 4. expansion link is 5. gone up nest, 6. in nest, 7. descend nest.

In Fig. 1, short bone 2 connects long bone 3 and following nest 7; Support bar 1 connects long bone 3 and middle nest 6; Expansion link 4 is between last nest 5 and middle nest 6; Following nest 7 is fixed.

The specific embodiment

In the example of Fig. 1, during parachute-opening, following nest 7 is fixed, nest 6 in drop-down is gone up nest 5 simultaneously toward descending, and expansion link 4 is to lower slider, the gravity of umbrella cover acts on long bone 3 by support bar 1, and with the tie point of support bar 1 and long bone 3 as the strong point, the gravitational equilibrium of umbrella cover the power that need use of parachute-opening, make parachute-opening light, laborsaving; When closing one's umbrella, nest 6 in upwards promoting, expansion link 4 upwards slides simultaneously, the center of gravity of umbrella cover descends, and short bone 2 acts on long bone 3, and with the tie point of short bone 2 and long bone 3 be the strong point, the gravity of umbrella cover by this strong point balance the power of the usefulness that closes one's umbrella, simultaneously, be equivalent to increase the height of umbrella because expansion link 4 upwards slides, thus avoided that umbrella draws in the time be blocked.

Claims

1. variant laborsaving umbrella in many forces comprises: go up nest, middle nest, following nest, long bone, short bone, support bar, expansion link, it is characterized in that nest is fixed down, nest and long bone under short bone connects; Support bar connects long bone and middle nest; Expansion link connects goes up nest and middle nest.