CN2875147Y

CN2875147Y - Central rod of multiple-folding umbrella

Info

Publication number: CN2875147Y
Application number: CN 200620013380
Authority: CN
Inventors: 黄禄财
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-29
Filing date: 2006-03-29
Publication date: 2007-03-07
Anticipated expiration: 2016-03-29

Abstract

A multi-folding umbrella medium bar provided comprises an external pipe (1), an internal pipe (3), and a plurality of medium pipes (2). Wherein, the external pipe (1), the medium pipes (2), and the internal pipe (3) shrink on each other in turn from inside to outside according to their caliber sizes. The medium pipes (2) comprises at least three pipes arranged from outside to inside in turn, a first medium pipe (21), a second medium pipe (22), and a third medium pipe (23); and the external pipe (1) has a cross section of a dodecagon; based on the dodecagon, the cross sections of the medium pipes (2) and the internal pipe (3) are provided with grooves having radial directions go inward and stretching along a medium shaft; the first medium pipe (21), the second medium pipe (22), and the third medium pipe (23) are provided with one, two, and three grooves respectively, and the internal pipe (3) is provided with four grooves, with the positions of the grooves on adjacent two pipes corresponding. The umbrella bar adopting the structure has the advantages of a small volume, light weight, high strength, hard torsion and bending, and therefore are applied to umbrellas with five or more foldings.

Description

Rod in many folding umbrellas

Technical field

The utility model relates to the parts of the parachute kit in the daily necessities, particularly to the improvement of bar structure in many foldings umbrella.

Background technology

Existing many folding automatic umbrella folding and unfoldings, wherein rod is socketed to form mutually by hollow tube body, rod mostly is three sections bodys compositions greatly among the many foldings umbrella that uses at present: by the caliber size, be outer tube from outside to inside, middle pipe and interior pipe, because middle rod has only three sections formations, thereby the length of each body is still longer relatively, the volume-diminished of parachute kit is limited during contraction, it is still not too convenient to carry, so occurred four foldings on the market again, many folding umbrellas such as five foldings, turn round phenomenon partially for fear of producing between each body, the transverse shape majority of the body of rod is to make polygon in these umbrellas, but the polygonal corner angle of body have caused the friction between the tube and tube to strengthen, and the joint between the tube and tube of wearing and tearing easily makes simultaneously to open when closing one's umbrella and more requires great effort, on the other hand, the broken number of middle rod is many more, and the diameter of outer tube will be big more, otherwise just can not guarantee that rod has enough intensity in this.

The utility model content

It is less and sufficient intensity arranged that the technical problem that will solve of the present utility model provides a kind of diameter, is difficult for turning round partially, opens rod in the many smoothly folding umbrellas of receipts.

The purpose of this utility model can realize by adopting following technical scheme: design rod in a kind of many folding umbrellas, comprise in a joint outer tube, the interior pipe of a joint and the more piece and managing, described outer tube, middle pipe and interior pipe form according to the flexible successively from outside to inside fit of caliber size, pipe comprises the three-joint pipe body at least in described, is followed successively by from outside to inside in first to manage in the pipe and the 3rd in the pipe, second; Wherein: the cross section of described outer tube is dodecagon, the pipe and the cross section of interior pipe have on the dodecagonal basis and directly concave and along the axially extended groove of middle rod in described, with the adjacent socket of outer tube first in the body of pipe have a groove, the body of pipe is provided with two grooves in second, the body of pipe is provided with three grooves in the 3rd, the body of interior pipe is provided with four grooves, and in the 2-section pipe body of adjacent socket, the groove on the bigger body of caliber is corresponding with the groove location on the less body of caliber.

Pipe has the three-joint pipe body in described in the present embodiment.At this moment, three faces at interval between two grooves on the pipe in described second; Three grooves in the described the 3rd on the pipe evenly are arranged on the dodecagonal tube wall, three faces in interval between per two grooves; In four grooves in described on the pipe, three grooves are along the even tube wall setting of interior pipe, and remaining groove is arranged on the tube wall at middle part between above-mentioned any two grooves.

The tube wall of pipe is than the thickness of pipe wall of outer tube and middle pipe in described, and pipe has enough intensity in can guaranteeing.

Compared with prior art, rod in many folding umbrellas of the present utility model, have following beneficial effect: wherein pipe and interior pipe are provided with groove, thereby intensity is good, and bending resistance is strong, so the diameter of its body can be done lessly, the number of folds of middle rod can be done greatlyyer, as six foldings or seven foldings, and also little at the collection volume of folded state umbrella, in light weight, be convenient for carrying; Since the position-limiting action of groove, the shortcoming of having avoided many usually folding umbrellas to reverse easily; Because the groove number of each adjacent body is different, middle rod launches or when folding, some is arranged by cancave cambered surface and the formed cavity of convex globoidal between adjacent two bodys, and it is slicker and more sly smooth and easy to make umbrella open receipts.

Description of drawings

Fig. 1 is that the utility model is rolled over the radial section figure when rod is in folded state in the umbrella more;

Fig. 2 is the radial section figure of described outer tube 1;

Fig. 3 is the radial section figure of pipe 21 in described first;

Fig. 4 is the radial section figure of pipe 22 in described second;

Fig. 5 is the radial section figure of pipe 23 in the described the 3rd;

Fig. 6 is the radial section figure of described interior pipe 3.

The utility model is described in further detail below in conjunction with drawings and Examples.

The specific embodiment

Rod can be made different broken numbers such as five foldings, six foldings, seven foldings in many folding umbrellas of the present utility model.Below with five the folding be that example illustrates architectural feature of the present utility model:

As shown in Figure 1, rod comprises outer tube 1 in many folding umbrellas of the present utility model, middle pipe 2, interior pipe 3, pipe 2 manages 21 wherein in first, manage 22 in second, pipe 23 is formed in the 3rd, described outer tube 1, middle pipe 2 and interior pipe 3 form according to the flexible successively fit of caliber size respectively, wherein the cross section of the outer tube 1 of maximum caliber is dodecagon (as Fig. 2), manage 21 in all the other, 22,23 and interior pipe 3 have the footpath and concave and along the axially extended groove of middle rod (as Fig. 3 to 6), the quantity of described groove adds 1 successively according to the diameter of body is descending, wherein the groove number of pipe 21 is 1 in first, the groove number of pipe 22 is 2 in second, the groove number of pipe 23 is 3 in the 3rd, and the groove number of interior pipe 3 is 4.

Its middle external tube 1 or interior pipe 3 all can be connected with handle of umbrella, or are connected with umbrella rib device to support umbrella cloth by last nest, and described upward nest, umbrella rib device, handle of umbrella and other elements are all same as the prior art, do not repeat them here.

As shown in Figure 4, three faces at interval between two grooves on the pipe 22 in described second; As Fig. 5, three grooves in the described the 3rd on the pipe 23 evenly are arranged on the dodecagonal tube wall, three faces at interval between per two grooves; As Fig. 6, described in four grooves of pipe on 3, three grooves are along the even tube wall setting of interior pipe 3, remaining groove is arranged on the tube wall at middle part between above-mentioned any two grooves.As shown in Figure 1, in the 2-section pipe body of adjacent socket, the groove on the bigger body of caliber is corresponding with the groove location on the less body of caliber.In addition, for the intensity of pipe 3 in guaranteeing, the tube wall of interior pipe 3 is done than the thickness of pipe wall of outer tube 1 and middle pipe 2.Adopt above-mentioned cross section design, strengthened the bending strength of middle each body of rod greatly, thereby can do the diameter of each body less.

As shown in Figure 1, all can form a cavity that surrounds by the tube wall of the groove of interior tube body and outer tube body between the 2-section pipe body of adjacent socket, this cavity reduces the frictional force between adjacent body, makes the telescopic slide between body slicker and more sly smooth and easy, like this open when closing one's umbrella just more laborsaving.

Above embodiment be to be that example illustrates mentality of designing of the present utility model with five foldings, but be not limited to five foldings, six foldings, seven foldings even eight foldings, the thinking of its structural design all is identical.

Claims

1. excellent in the umbrella of folding more than a kind, comprise in a joint outer tube (1), the joint and manage pipe (2) in (3) and the more piece, described outer tube (1), middle pipe (2) and interior pipe (3) form according to the flexible successively from outside to inside fit of caliber size, pipe (2) comprises the three-joint pipe body at least in described, is followed successively by from outside to inside and manages (23) in first in the pipe (21), second in the pipe (22) and the 3rd; It is characterized in that: the cross section of described outer tube (1) is dodecagon, the cross section of pipe (2) and interior pipe (3) has on the dodecagonal basis and directly concaves and along the axially extended groove of middle rod in described, with the adjacent socket of outer tube (1) first in the pipe (21) body have a groove, the body of pipe (22) is provided with two grooves in second, the body of pipe (23) is provided with three grooves in the 3rd, the body of interior pipe (3) is provided with four grooves, and in the 2-section pipe body of adjacent socket, the groove on the bigger body of caliber is corresponding with the groove location on the less body of caliber.

2. rod in many folding umbrellas according to claim 1, it is characterized in that: pipe (2) has the three-joint pipe body in described.

3. rod in many folding umbrellas according to claim 2 is characterized in that: three faces in interval between two grooves in described second on the pipe (22); Three grooves in the described the 3rd on the pipe (23) evenly are arranged on the dodecagonal tube wall, three faces in interval between per two grooves; In described in four grooves of pipe on (3), three grooves are along the even tube wall setting of interior pipe (3), and remaining groove is arranged on the tube wall at middle part between above-mentioned any two grooves.

4. according to rod in claim 1, the 2 or 3 described many folding umbrellas, it is characterized in that: the tube wall of pipe (3) is than the thickness of pipe wall of outer tube (1) and middle pipe (2) in described.