CN2303497Y

CN2303497Y - Aluminium-alloy rib central-rod reinforing structure

Info

Publication number: CN2303497Y
Application number: CN97222682U
Authority: CN
Inventors: 张益充
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-09
Filing date: 1997-09-09
Publication date: 1999-01-13
Anticipated expiration: 2007-09-09

Abstract

The utility model discloses an aluminium-alloy umbrella rib central-rod reinforcing structure. Primarily, a reinforcing section is arranged at a corner of the inner hole of the central-rod of the umbrella rid so that the resisting moment of the central-rod of the umbrella rid is largely improved. Thus, an aluminium-alloy rib umbrella rid central-rod reinforcing structure with high reinforcing and long service life is provided.

Description

Aluminium alloy Middle bar of umbrella reinforced structure

The utility model relates to a kind of aluminium alloy Middle bar of umbrella reinforced structure, the outstanding structure that specially refers to the aluminium alloy Middle bar of umbrella, and this Middle bar of umbrella robustness is good, can enlarge the lifting surface area of Middle bar of umbrella, has high-intensity benefit, and can promote the market competitiveness.

See also shown in Fig. 1,2, be aluminium alloy Middle bar of umbrella structure now, Middle bar of umbrella 90 mainly constitutes one " I " shape body in the mode of pull, the sliding corresponding slide 91 of establishing on it, the umbrella stand 92 that is pivoted around the slide 91, slide 91 during slippage, can be followed the track of " I " shape Middle bar of umbrella 90 on Middle bar of umbrella 90, interlock struts umbrella stand 92 or folds umbrella stand 92, utilizes for the user.

Middle bar of umbrella 90 struts the position of umbrella stand 92 at relative slide 91, and being provided with a fluting 93 can penetrate for supporting spring 94, and makes supporting spring 94 can pass in and out fluting 93, in order to the location of slide 91 when strutting umbrella stand 92.

Please cooperate Fig. 3, shown in 4, the supporting spring 94 of said structure must support the strength that whole umbrella stand 92 is born, and the stressed contact-making surface of supporting spring 94 and Middle bar of umbrella 90 is only depended merely on fluting 93, so if umbrella stand 92 is subjected to blowing when scraping of high wind, because of the intensity of supporting spring 94 is strong than Middle bar of

umbrella

90, and 93 phenomenons that have stress to concentrate again easily in the position of punching moulding of slotting, so Middle bar of umbrella 90 is when accepting supporting spring 94 stressed, just rupture or tear in easy position in fluting 93 punching moulding, if fracture or when tearing, then umbrella just can't use, and Middle bar of umbrella 90 is when rupturing or tearing, hurt the user probably, this has part to be overcome for existing structural design.

In addition, be suitable little of the sectional area of its Middle bar of umbrella 90, so its strength that on average can bear is quite limited, thus, just can produce misgivings as first, this is that the designer fails to take into account part.

The utility model purpose is to provide a kind of aluminium alloy Middle bar of umbrella reinforced structure, significantly to increase the sectional area of Middle bar of umbrella, lifting surface area is increased, and effectively disperses stressedly, and reaches well-set purpose.

For reaching above-mentioned purpose, the corner of the utility model Middle bar of umbrella endoporus respectively is provided with thicker reinforcement section, and reinforcement section system cooperates Middle bar of umbrella and the one pull forms out, and extends to the both sides of fluting.

When supporting spring produces moment because of stressed to Middle bar of umbrella, fluting, when making the Middle bar of umbrella corner produce pressure or pulling force,, can promote its torque resistant because of it has the setting of reinforcement section, and applicable to the behaviour in service of exerting oneself more greatly.

The utility model also can respectively be provided with thicker reinforcement section at four corners of Middle bar of umbrella endoporus, makes the endoporus of Middle bar of umbrella form a diamond shaped.

After adopting said structure, the utility model has following advantage in use:

(1) the unstressed anxiety of concentrating: because of four corners of Middle bar of umbrella are equipped with the reinforcement section, the situation that makes this corner be difficult for having stress to concentrate produces, even be subjected to the blowing when scraping of high wind, in the umbrella frame, rod is easy fracture not also, makes umbrella use for a long time and meets economic benefit.

(2) structure is strong: because of be provided with the reinforcement section in Middle bar of umbrella, so the area in its cross section is commonly used increase, the stress that can bear significantly promotes, and makes that the structure of Middle bar of umbrella is more strong, is difficult for having the situation of tearing or bending.

(3) manufacturing is easy: with the utility model, its internal mold that need only change the pull Middle bar of umbrella gets final product, and need not change other and produce facility or flow process, and the puzzlement degree that not increase group is established so commonly use the structure manufacturing, there is no any inconvenience place.

(4) do not gain in weight: the umbrella frame of general export trade, its gross weight must not surpass 180 g, carries to make things convenient for the user; And reinforcement section of the present utility model is when being arranged at Middle bar of umbrella, the also unlikely gross weight that significantly adds umbrella frame.

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

The decomposing schematic representation of structure is commonly used by Fig. 1 system;

The relative axis of no-feathering of Middle bar of umbrella, supporting spring is commonly used to generalized section by Fig. 2 system;

The radial section schematic diagram of Middle bar of umbrella is commonly used by Fig. 3 system;

The relative structure that Middle bar of umbrella, supporting spring are commonly used by Fig. 4 system is another generalized section radially;

Fig. 5 is a perspective exploded view of the present utility model;

Fig. 6 is that the relative axis of no-feathering of the utility model Middle bar of umbrella, supporting spring is to generalized section;

Fig. 7 is the schematic perspective view of Middle bar of umbrella of the present utility model;

Fig. 8 is the radial section schematic diagram of Middle bar of umbrella of the present utility model;

Fig. 9 is relative structure another generalized section radially of the utility model Middle bar of umbrella, supporting spring.

See also shown in Fig. 5,6, be slidingly equipped with slide 20 on the Middle bar of umbrella 10 of the present utility model, umbrella stand 30 is pivoted around the slide 20, Middle bar of umbrella 10 is provided with fluting 11 in the position that relative slide 20 struts umbrella stand 30, fluting 11 can penetrate the location for supporting spring 40 1 ends, and supporting spring 40 end in addition then can be mounted in the Middle bar of umbrella 10.

Please cooperate shown in Fig. 7,8, four corners of Middle bar of umbrella 10 endoporus respectively are provided with thicker reinforcement section 50, make the endoporus of Middle bar of umbrella 10 form a diamond shaped, this reinforcement section 50 extends to the both sides of fluting 11, the utility model was slotted 11 o'clock in punching out, need not purchase the bigger facility of impulse force in addition, need only cooperate commonly use the punching out facility can punching out fluting 11 so that the utility model need not be altered to production line.

Reinforcement section 50 is to cooperate Middle bar of umbrella 10 and the one pull forms out, it is made quite convenient and is not had any puzzlement, because need only change the internal mold of pull shaping mould gets final product, and the shape setting of this internal mold is identical with the shape of the utility model Middle bar of umbrella 10, so can the Middle bar of umbrella 10 of utility model be taken out make smoothly and finish, and this has the Middle bar of umbrella 10 of reinforcement section 50, and the gross weight increase is also very limited, the unlikely umbrella serviceability that has influence on.

Please cooperate shown in Figure 9ly again, can find out the place of relevant the utility model characteristic clearly; If supporting spring 40 produces moments because of stressed to rod 10, fluting 11 in the umbrella, when making 10 4 corners of Middle bar of umbrella produce pressure or pulling force, because of it has the setting of reinforcement section 50, thus can torque resistant, and applicable to the behaviour in service of exerting oneself more greatly; Review and commonly use structure, the tube wall of its Middle bar of umbrella is same thickness, does not have any structure to strengthen part, so the situation that fluting is torn or Middle bar of umbrella bends is often arranged.

And the utility model to the torque resistant design department of supporting spring 40 with reinforcement section 50 in response to, if supporting spring 40 is because of stressed when making each corner of Middle bar of umbrella 10 produce pressure or pulling force, its reinforcement section 50 can make drag effectively be distributed on the sectional area, its moment of torsion just can greatly promote, and the degree of stability of bearing moment of torsion also improves because of sectional area increases significantly equally.

Claims

1, a kind of aluminium alloy Middle bar of umbrella reinforced structure, it is characterized in that: the corner of Middle bar of umbrella endoporus respectively is provided with thicker reinforcement section, and extends to the both sides of fluting.

2, aluminium alloy Middle bar of umbrella reinforced structure as claimed in claim 1 is characterized in that: four corners of Middle bar of umbrella endoporus respectively are provided with thicker reinforcement section.