CN202381947U

CN202381947U - Unfolding angle control mechanism for tripod leg tubes

Info

Publication number: CN202381947U
Application number: CN2012200011727U
Authority: CN
Inventors: 张奉果
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-04
Filing date: 2012-01-04
Publication date: 2012-08-15
Anticipated expiration: 2022-01-04

Abstract

The utility model discloses an unfolding angle control mechanism for tripod leg tubes. The unfolding angle control mechanism comprises telescopic leg tubes hinged onto a body seat, wherein toothed convex blocks are arranged on the body seat; limited adjusting blocks matched with the toothed convex blocks are movably mounted at the upper ends of the leg tubes; after the limited adjusting blocks are pushed out, the leg tubes are positioned in a movable state and can freely rotate; after the limited adjusting blocks are pushed in, the leg tubes are positioned in a locking state and are abutted against the toothed convex blocks for preventing the leg tubes from rotating; springs are connected to the limited adjusting blocks; when the leg tubes are adjusted, the limited adjusting blocks are pushed out and the leg tubes can be rotated; and after the limited adjusting blocks are loosened by a human hand, the limited adjusting blocks are automatically rebounded to the locking state by elasticity of the springs, and thus the locking in-place is ensured and the safety of the tripod is improved. The limited adjusting blocks automatically reset after the human hand is loosened, and does not need to be manually pushed in. The unfolding angle control mechanism is simple and convenient for operation.

Description

Tripod pin pipe start point control mechanism

Technical field

The utility model relates to a kind of photographic goods, particularly a kind of tripod pin pipe start point control mechanism.

Background technique

Chinese patent number is 200820137201.6, and the patent document that name is called " foot rest is used in photography " discloses a kind of pin pipe regulating mechanism of tripod, and the noumenal seat of this tripod is provided with the profile of tooth projection; The upper end of pin pipe is provided with the spacing regulating block that matches with the profile of tooth projection, and this spacing regulating block is provided with the bar shaped groove, is fixed on through the screw that passes the bar shaped groove in the U-shaped mouth of pin pipe; In use, release spacing regulating block, just can rotate the pin pipe; After the pin pipe rotate in place, more spacing regulating block is pushed, spacing regulating block just is against on the profile of tooth projection; The restrict foot pipe rotates, and this pin pipe regulating mechanism uses comparatively trouble, especially people to regulate usually to forget behind the pin pipe and pushes or push spacing regulating block not in place; Spacing regulating block can not be against on the profile of tooth projection; The pin pipe can freely rotates even topples over, and causes being erected at expensive photographic goods damages such as photographic camera on the tripod, vidicon camera, poor safety performance.

The model utility content

In order to overcome the deficiency of existing technology, but the utility model provides a kind of spacing regulating block automatic locking to be anchored to the position, the tripod pin pipe start point control mechanism that Safety performance is high.

The utility model solves the technological scheme that its technical problem adopted:

A kind of tripod pin pipe start point control mechanism; Comprise the scalable pin pipe that is hinged on the noumenal seat, said noumenal seat is provided with the profile of tooth projection, and the upper end of said pin pipe is movably installed with the spacing regulating block that matches with said profile of tooth projection; It is active state that said spacing regulating block is pushed out rear foot tube; The pin pipe can freely rotate, and it is the snap close state that said spacing regulating block is pushed into rear foot tube, and spacing regulating block is against and stops the pin pipe to rotate on the profile of tooth projection; Said spacing regulating block is connected with spring, during free state the elastic force of said spring with said spacing regulating block bullet to the snap close state.

Said spacing regulating block is provided with the bar shaped groove, be interspersed with in the said bar shaped groove one be screwed in said pin pipe upper end screw rod.

The upper end of said pin pipe is provided with first curve bath, and said spring is installed in said first curve bath, and an end of said spring is against on the said spacing regulating block, and the other end is against on the said pin pipe.

Said spacing regulating block is provided with second curve bath, and said spring is installed in said second curve bath, and an end of said spring is against on the said spacing regulating block, and the other end is against on the said pin pipe.

The opening of said first curve bath and second curve bath is relative, and said first curve bath and second curve bath are to adorning the cavity that the back constitutes ccontaining said spring, and said spring is installed in the said cavity.

The beneficial effect of the utility model is: the spacing regulating block of the utility model is connected with spring, when adjustment pin pipe, releases spacing regulating block, just can rotate the pin pipe; After staff unclamped spacing regulating block, the elastic force of spring from moving to the snap close state, guaranteed that snap close puts in place with spacing regulating block; Improved the Security of tripod, automatically reset, do not needed the people to push by hand because staff unclamps the spacing regulating block in back; Simple to operate, convenient.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is one of tripod overall structure schematic representation of the utility model;

Fig. 2 is the partial structurtes schematic representation of the utility model;

Fig. 3 is the partial structurtes decomposing schematic representation of the utility model;

Fig. 4 is the upper end structural representation of pin pipe;

Fig. 5 is the upper end decomposition texture schematic representation of pin pipe;

Fig. 6 is the upper end sectional structure schematic representation of pin pipe;

Fig. 7 is the linkage structure schematic representation of spacing regulating block and spring;

Fig. 8 is spacing regulating block structural representation;

Fig. 9 be the utility model the overall structure schematic representation two;

Figure 10 is the folding back of the tripod structural representation of the utility model.

Embodiment

Referring to figs. 1 through Figure 10, a kind of tripod pin pipe start point control mechanism comprises through king-rod lock sleeve 11 being installed in the king-rod 10 on the noumenal seat 1 and being hinged on the scalable pin pipe 2 on the noumenal seat 1; Said noumenal seat 1 is provided with profile of tooth projection 3; Profile of tooth projection 3 is provided with through hole, and riffled tube 13 is installed in the through hole, and the two ends of riffled tube 13 respectively are equipped with screw 12; The upper end of pin pipe 2 is the U-shaped mouth, and the both sides of U-shaped mouth are hinged on the both sides of profile of tooth projection 3 through screw 12.

The upper end of said pin pipe 2 is movably installed with the spacing regulating block 4 that matches with said profile of tooth projection 3; Spacing regulating block 4 is arranged on the bottom of the upper end U-shaped mouth of pin pipe 2, holds a pin pipe, uses thumb to release said spacing regulating block 4 rear foot tubes from side and is active state; The pin pipe can freely rotate; The height of adjusting tripod or folding, it is the snap close state that said spacing regulating block 4 is pushed into rear foot tube, spacing regulating block 4 is against and stops the pin pipe to rotate on the profile of tooth projection 3; Said spacing regulating block 4 is connected with spring 5, during free state the elastic force of said spring 5 with said spacing regulating block 4 bullets to the snap close state.

Said spacing regulating block 4 just be against on the profile of tooth projection 3 can the control pin pipe stretching degree; Pin pipe opening width schematic representation when pin pipe opening width schematic representation when Fig. 1 is normal photographing, Fig. 9 are low the bat, Figure 10 is the structural representation after tripod folds; Volume after folding is little, is convenient for carrying.

Said spacing regulating block 4 is provided with bar shaped groove 6; Be interspersed with in the said bar shaped groove 6 one be screwed in said pin pipe 2 upper ends screw rod 7; The U-shaped oral-lateral wall of pin pipe 2 upper ends blocks the both sides of spacing regulating block 4; Bar shaped groove 6 slides along screw rod 7, and the two ends that screw rod 7 blocks bar shaped groove 6 promptly constitute active state or snap close state.

First kind of mounting type of said spring is referring to Fig. 3, Fig. 5; The upper end of said pin pipe 2 is provided with first curve bath 8; Said spring 5 is installed in said first curve bath 8, and an end of said spring 5 is against on the said spacing regulating block 4, and the other end is against on the said pin pipe 2.

Second kind of mounting type of said spring is referring to Fig. 7, Fig. 8; Said spacing regulating block 4 is provided with second curve bath 9; Said spring 5 is installed in said second curve bath 9, and an end of said spring 5 is against on the said spacing regulating block 4, and the other end is against on the said pin pipe 2.

The third mounting type of said spring is referring to Fig. 3 to Fig. 8; The opening of said first curve bath 8 and second curve bath 9 is relative, constitutes the cavity 14 of ccontaining said spring 5 behind said

first curve bath

8 and 9 pairs of dresses of second curve bath, and said spring 5 is installed in the said cavity 14; This mode of the preferential employing of present embodiment; Can make the degree of depth of first curve bath 8 and second curve bath 9 less like this, reduce the thickness of spacing regulating block and pin pipe upper end, convenient processing.

Because the spacing regulating block of the utility model is connected with spring, when adjustment pin pipe, release spacing regulating block, just can rotate the pin pipe; After staff unclamped spacing regulating block, the elastic force of spring from moving to the snap close state, guaranteed that snap close puts in place with spacing regulating block; Improved the Security of tripod, automatically reset, do not needed the people to push by hand because staff unclamps the spacing regulating block in back; Simple to operate, convenient.

Claims

1. tripod pin pipe start point control mechanism; Comprise the scalable pin pipe (2) that is hinged on the noumenal seat (1); Said noumenal seat (1) is provided with profile of tooth projection (3); The upper end of said pin pipe (2) is movably installed with the spacing regulating block (4) that matches with said profile of tooth projection (3), and it is active state that said spacing regulating block (4) is pushed out rear foot tube, and the pin pipe can freely rotate; It is the snap close state that said spacing regulating block (4) is pushed into rear foot tube; Spacing regulating block (4) is against profile of tooth projection (3) and go up stops the pin pipe to rotate, and it is characterized in that said spacing regulating block (4) is connected with spring (5), during free state the elastic force of said spring (5) with said spacing regulating block (4) bullet to the snap close state.

2. tripod pin pipe start point control mechanism according to claim 1; It is characterized in that said spacing regulating block (4) is provided with bar shaped groove (6), be interspersed with in the said bar shaped groove (6) one be screwed in said pin pipe (2) upper end screw rod (7).

3. tripod pin pipe start point control mechanism according to claim 1; The upper end that it is characterized in that said pin pipe (2) is provided with first curve bath (8); Said spring (5) is installed in said first curve bath (8); One end of said spring (5) is against on the said spacing regulating block (4), and the other end is against on the said pin pipe (2).

4. tripod pin pipe start point control mechanism according to claim 1; It is characterized in that said spacing regulating block (4) is provided with second curve bath (9); Said spring (5) is installed in said second curve bath (9); One end of said spring (5) is against on the said spacing regulating block (4), and the other end is against on the said pin pipe (2).

5. according to claim 3 or 4 described tripod pin pipe start point control mechanisms; The opening that it is characterized in that said first curve bath (8) and second curve bath (9) is relative; Said first curve bath (8) and second curve bath (9) are to adorning the cavity (14) that the back constitutes ccontaining said spring (5), and said spring (5) is installed in the said cavity (14).