CN201388628Y

CN201388628Y - Self-locking mechanism of umbrella rod of folding umbrella

Info

Publication number: CN201388628Y
Application number: CN200920116679U
Authority: CN
Inventors: 王斌章
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-30
Filing date: 2009-03-30
Publication date: 2010-01-27
Anticipated expiration: 2019-03-30

Abstract

The utility model discloses a self-locking mechanism of umbrella rod of folding umbrella, which belongs to the manufacturing field of umbrellas. The self-locking mechanism comprises a bended elastic piece, and is characterized in that one end of the elastic piece is provided with a projection which can penetrate through a pin hole on the umbrella rod. A tapered locking pin in the prior art is replaced through manufacturing the projection on the elastic piece, not only the materials of the tapered locking pin are saved, but also the procedures of manufacturing and assembling the tapered locking pin are saved, which is more convenient to improve the manufacturing efficiency and save the labor cost.

Description

A kind of adjustable umbrella rod self-locking mechanism

Technical field

The utility model relates to folding umbrella commonly used, and the self-locking mechanism that two pole bodies slide is relatively faced in restriction mutually in the adjustable umbrella rod specifically.

Background technology

Umbrella is mainly formed its structure such as Fig. 1 by umbrella cover, osteocomma, last dish, lower wall, umbrella bar and handle.Dish, handle are fixedly mounted on the upper/lower terminal of umbrella bar respectively on the described umbrella, and described lower wall is sleeved on the umbrella bar, can be along the upper and lower slip of umbrella bar.Last dish lower end and lower wall upper end are provided with the groove around the end, along one week of groove, are provided with some openings relatively uniformly, and quantity is identical with the osteocomma number.Described osteocomma comprises several umbrella frames, directly or by the saddle riveted joint forms linkage between the umbrella frame, and the quantity of umbrella frame is decided on the structure of umbrella, and each osteocomma assembly of eighty percent discount umbrella is made of four umbrella frames and two saddles usually.Each osteocomma of triple folding umbrella is made of five umbrella frames, three saddles and an extension spring.And each osteocomma assembly of four folding umbrellas is made of seven umbrella frames, two saddles and an extension spring.Described osteocomma is installed in the upper and lower dish groove by first and second grades of umbrella frames, and when the umbrella bar moved up and down, umbrella frame was done thereupon and stretched and the folding campaign.

The umbrella bar of using in the umbrella at folding mostly is scalable umbrella bar, is generally formed by two joints or the three-joint pipe shape body of rod suit successively.When the umbrella bar elongated use, facing two pole axons mutually should be locked to relative slip.Use for convenience, people have designed various self-locking mechanisms in the umbrella bar.The most popular now a kind of umbrella bar self-locking mechanism is made up of the shell fragment of a bending and the conehead lock pin that is arranged on shell fragment one end.This shell fragment is arranged in the thin bar that faces mutually in the two pole bodies.Be respectively equipped with the pin-and-hole of mutual correspondence on the described two pole bodies.Described conehead lock pin matches with the pin-and-hole of two pole bodies.Though this self-locking mechanism locking is reliable, and is not easy to take place stuck phenomenon.But processes such as the manufacturing of lock pin, assembling and lock pin material cost etc. have all increased the manufacturing cost of self-locking mechanism greatly.

Summary of the invention

The purpose of this utility model is at the prior art above shortcomings, and a kind of novel umbrella bar self-locking mechanism is provided, to save material cost and manufacturing cost.

Realize that the technical scheme that above-mentioned purpose adopted is: a kind of umbrella bar self-locking mechanism comprises the shell fragment of bending it is characterized in that an end of described shell fragment has a protuberance that can pass pin-and-hole on the umbrella bar.

In the utility model, described protuberance is with the direct drawing of shell fragment when making shell fragment.Compare with self-locking mechanism of the prior art, saved the manufacturing and the assembling process of locking cone, also saved the locking cone material simultaneously.When producing in batches, not only help enhancing productivity, and greatly reduce production cost.

In the utility model, described shell fragment can be converted into V-arrangement or U-shaped.Described protuberance can be the spherical surface hill that is stamped to form with the round end mould, also can be the arch projection.In the utility model, preferred spherical surface hill.

Because adopting impact style processing projection on flaky material is to realize by the stretching to material, higher to specification requirement in this process, when flaky material is very thin, the crack appears easily especially, and blank is scrapped.At this problem, the utility model proposes a kind of improvement project: the described protuberance of described shell fragment one end is designed to an a few font bending of shell fragment end.This improvement project will be changed into bending to material to the stretching of material.The problems such as crack that may occur when effectively having avoided stamped bumps.

Compare with the umbrella bar self-locking mechanism that has the conehead lock pin in the prior art, umbrella bar self-locking mechanism of the present utility model has omitted the conehead lock pin, and this has not only saved conehead lock pin material, and saved the production and the assembling process of conehead lock pin, more help enhancing productivity and saving cost of labor.

Description of drawings

Fig. 1 is a folding umbrella overall structure schematic diagram commonly used.

Fig. 2 is the existing assembly structure schematic diagram of umbrella bar self-locking mechanism in the umbrella bar.

Fig. 3 is existing umbrella bar self-locking mechanism structural representation.

Fig. 4 be Fig. 3 look up the deployed configuration schematic diagram.

Fig. 5 is the umbrella bar self-locking mechanism structural representation with spherical surface hill.

Fig. 6 be Fig. 5 look up the deployed configuration schematic diagram.

Fig. 7 is the umbrella bar self-locking mechanism structural representation with arch projection.

Fig. 8 be Fig. 7 look up the deployed configuration schematic diagram.

Fig. 9 is the umbrella bar self-locking mechanism structural representation with a few font bendings.

Figure 10 be Fig. 9 look up the deployed configuration schematic diagram.

Figure 11 is the assembly structure signal of the utility model umbrella bar self-locking mechanism in the umbrella bar.

The specific embodiment

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

With reference to Fig. 1,2, triple folding umbrella commonly used mainly by umbrella cover 5, osteocomma 3, on coil 4, lower wall 6, umbrella bar 2 and handle 1 form.The upper/lower terminal that coil 4 on the described umbrella, handle 1 is fixedly mounted on umbrella bar 2 respectively, described lower wall 6 is sleeved on the umbrella bar 2, can be along the 2 upper and lower slips of umbrella bar.Last dish lower end and lower wall upper end are provided with the groove around the end, along one week of groove, be provided with some openings relatively uniformly, quantity is identical with osteocomma 3 quantity, described osteocomma 3 is installed in upper and

lower dish

4,6 grooves by first, second grade umbrella frame on it 8,9, when described lower wall 6 when umbrella bar 2 moves up and down, umbrella frame is done thereupon and is stretched and the folding campaign.

Described umbrella bar 2 is formed by three-joint pipe shape body of rod suit successively, faces mutually in the two pole bodies, is provided with umbrella bar self-locking mechanism in the thin bar 12, and described umbrella bar self-locking mechanism comprises U-shaped shell fragment 13 and is arranged on the conehead lock pin 15 of described shell fragment 13 right-hand members.Described conehead lock pin 15 cooperates the pin-and-hole 14 on the body of

rod

11,12 that two pole bodies are locked.

With reference to Fig. 3,4, described shell fragment 13 right-hand members are provided with an installing hole, and described conehead lock pin 15 is riveted in the described installing hole.

With reference to Fig. 5,6,7,8,9,10, in contrast to prior art, the utility model self-locking mechanism has omitted conehead lock pin 15, and what substitute these parts is the right-hand member protuberance that is positioned at shell fragment 13.Described protuberance can be spherical surface hill 16 or arch projection 17, shown in Fig. 5,6 or 7,8.Also can be an a few font bending 18 that is positioned on the shell fragment, shown in Fig. 9,10.The mounting means in the umbrella bar of umbrella bar self-locking mechanism of the present utility model is identical with the self-locking mechanism of existing band conehead lock pin, as shown in figure 11.From machining angle, self-locking mechanism of the present utility model can disposable drawing.Need not other assembling process.

What should be understood that is: the foregoing description is just to explanation of the present utility model, rather than to restriction of the present utility model, any innovation and creation that do not exceed in the utility model connotation scope all fall within the protection domain of the present utility model.

Claims

1, a kind of adjustable umbrella rod self-locking mechanism comprises the shell fragment (13) of bending it is characterized in that an end of described shell fragment (13) has a protuberance that can pass pin-and-hole on the umbrella bar (14).

2, a kind of adjustable umbrella rod self-locking mechanism according to claim 1 is characterized in that, described shell fragment is the U-shaped shell fragment.

3, a kind of adjustable umbrella rod self-locking mechanism according to claim 2 is characterized in that, described protuberance is spherical surface hill (16).

4, a kind of adjustable umbrella rod self-locking mechanism according to claim 2 is characterized in that, described protuberance is arch projection (17).

5, a kind of adjustable umbrella rod self-locking mechanism according to claim 2 is characterized in that, described protuberance is a few font bendings (18) of shell fragment end.