CN2867391Y

CN2867391Y - Expansion foot tube modified structure for photographic tripod

Info

Publication number: CN2867391Y
Application number: CN200620053293.0U
Authority: CN
Inventors: 刘昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-05
Filing date: 2006-01-05
Publication date: 2007-02-07
Anticipated expiration: 2016-01-05

Abstract

The utility model relates to photographic apparatus technology field and discloses an improved extension foot pipe structure of photographic tripod. The utility model includes an extension foot pipe and a foot pipe lock sleeve; wherein, the extension foot pipe is in cascade, the pipe diameter of the upper part is larger than that of the lower part, the outer wall on the upper part has the outside thread matched with the foot pipe lock sleeve and the wall thickness of the upper part of the extension foot pipe is greater than the lower part. Because the extension foot pipe adopts different wall thicknesses on the upper part and the lower part and the wall on the upper part is thicker than the wall on the lower part, the intensity of the upper part after thread forming could be guaranteed, the weight of the extension foot pipe could be reduced and the production cost could be decreased.

Description

A kind of telescopic leg tubular construction improvement of photographic tripod

Technical field:

The utility model relates to the photographic goods technical field, especially relates to the telescopic leg pipe of photographic tripod.

Background technology:

Tripod is one of important photographic goods, its structure of traditional tripod mainly contains following two kinds, wherein a kind of is uniform thickness formula pipe fitting, see shown in accompanying drawing 1 and the accompanying drawing 2, it has a stepped telescopic leg pipe 01, the upper end 011 of telescopic leg pipe 01 is identical with the wall thickness of lower end 012, forms the external thread that matches with internal thread on pin pipe lock sleeve 02 inwall on the outer wall of upper end 011.In addition, be coated with rubber sleeve 03 in the outer end of pin pipe lock sleeve 02.The weak point of this uniform thickness formula pipe fitting is, behind the upper end 011 moulding external thread of telescopic leg pipe 01, to weaken its intensity, for the reliability that guarantees that the pin plumber does, the wall thickness of telescopic leg pipe 01 must be bigger, and so not only increased cost, make excessive and inconvenient the carrying of weight of pin pipe again.See shown in accompanying drawing 3 and the accompanying drawing 4, the tripod of another form then adopts between telescopic leg pipe 01 and pin pipe lock sleeve 02 and adds a pin pipe connector 04, the lower end 042 of pin pipe connector 04 forms the external thread that cooperates with pin pipe lock sleeve 02 with upper end 011 socket of telescopic leg pipe 01, its 041 of upper end on its outer wall.The tripod of this form is owing to increased pin pipe connector 04, and cost is higher, and in addition, its weight is also very big and inconvenient carries.

The utility model content:

But the purpose of this utility model provides a kind of both proof strengths with regard to being the weak point that exists at prior art, but weight reduction again, the telescopic leg tubular construction of the photographic tripod that cost is also lower improvement simultaneously.

For achieving the above object, the utility model includes telescopic leg pipe and pin pipe lock sleeve, wherein, the telescopic leg pipe is stepped, the caliber of its upper end is big than the lower end, and forms the external thread that cooperates with pin pipe lock sleeve on the outer wall of upper end, and the wall thickness of telescopic leg pipe upper end is greater than the lower end.

Described pin pipe lock sleeve outer end is coated with rubber sleeve.

The beneficial effects of the utility model are: because the form that does not wait wall thickness is adopted in the top and bottom of telescopic leg pipe, the wall thickness of order upper end is greater than the lower end, so both can guarantee the intensity of upper end behind the moulding screw thread, can alleviate the weight of telescopic leg pipe again, reduce production costs simultaneously.

Description of drawings:

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

Accompanying drawing 1 is the structural representation of one of traditional telescopic leg pipe

Accompanying drawing 2 is the structural representation after the telescopic leg pipe in the accompanying drawing 1 removes pin pipe lock sleeve and rubber sleeve

Accompanying drawing 3 is two a structural representation of traditional telescopic leg pipe

Accompanying drawing 4 is the structural representation after the telescopic leg pipe in the accompanying drawing 3 removes pin pipe lock sleeve and rubber sleeve

Accompanying drawing 5 is an one-piece construction synoptic diagram of the present utility model

Accompanying drawing 6 removes structural representation behind pin pipe lock sleeve and the rubber sleeve for the utility model

Embodiment:

The following stated only is preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.

See shown in accompanying drawing 5 and the accompanying drawing 6: the utility model includes telescopic leg pipe 10 and pin pipe lock sleeve 20, and wherein, telescopic leg pipe 10 is stepped, and its upper end 101 is adopted tube expansion technique and made its caliber greater than lower end 102; Form the external thread 11 that cooperates with pin pipe lock sleeve 20 on the outer wall of upper end 101, in order to guarantee the intensity of upper end 101, its wall thickness must be greater than lower end 102.Like this, both can alleviate the weight of whole tripod, again escapable cost.In addition, pin pipe lock sleeve 20 outer ends are coated with rubber sleeve 30, one persons of being easy to use and rotate pin pipe lock sleeve 20, two and can play sealing effectiveness, prevent that dust and foreign material from entering between the junction of telescopic leg pipe 10 upper ends 101 and pin pipe lock sleeve 20.

Claims

1. the telescopic leg tubular construction of photographic tripod improvement, it includes telescopic leg pipe (10) and pin pipe lock sleeve (20), wherein, telescopic leg pipe (10) is stepped, the caliber of its upper end (101) is big than lower end (102), and form the external thread (11) that cooperates with pin pipe lock sleeve (20) on the outer wall of upper end (101), it is characterized in that: the wall thickness of telescopic leg pipe (10) upper end (101) is greater than lower end (102).

2. the telescopic leg tubular construction of photographic tripod according to claim 1 improvement, it is characterized in that: described pin pipe lock sleeve (20) outer end is coated with rubber sleeve (30).