CN2690715Y

CN2690715Y - Camera Tripod Tube Locking Mechanism

Info

Publication number: CN2690715Y
Application number: CN 200320117448
Authority: CN
Inventors: 李树强
Original assignee: Lap Shun Manufacture Co Ltd
Current assignee: Lap Shun Manufacture Co Ltd
Priority date: 2003-10-25
Filing date: 2003-10-25
Publication date: 2005-04-06
Anticipated expiration: 2013-10-25

Abstract

A camera tripod sleeve locking mechanism comprises an outer sleeve 1, an inner sleeve 2, a jacket 3, an eccentric spanner 4, a locking pressing block 5 and a pin shaft 6, wherein the inner sleeve 2 is sleeved in the outer sleeve 1, the jacket 3 is installed at the tail end of the outer sleeve 1, the eccentric spanner 4 is installed on the jacket 3 through the pin shaft 6, the locking pressing block 5 is arranged in a hole 7 at the tail end of the outer sleeve 1, the top surface of the locking pressing block 5 is pressed by the top of the eccentric spanner 4, the locking pressing block further comprises a reinforcing sleeve 8, the reinforcing sleeve 8 is sleeved in the top end of the inner sleeve 2, a boss 11 protrudes from a certain position on the outer surface of the reinforcing sleeve 8, the boss 11 extends out of a hollow groove on the wall surface of the inner sleeve 2, teeth 9 protrude from the bottom surface of the locking pressing block 5, the boss 11 is also provided with a tooth groove 10, the bottom surface of, thereby widening the application range of the tripod.

Description

Camera crane sleeve pipe locking mechanism

1, technical field:

The utility model relates to camera crane sleeve pipe locking mechanism

2, background technique:

Traditional camera tripod sleeve pipe locking mechanism considers that in design the main article that tripod supports are photographic cameras, the weight of photographic camera and annex thereof is lighter, the photographic camera and the annex thereof of specialty generally all are no more than 7 kilogram weights at present, its main structure design is as follows: as shown in Figure 1 and Figure 2, the chuck B of the bottom of sleeve A installation outside, the bearing pin C of chuck B goes up setting-up eccentricity spanner D, decenter clutch D will lock briquetting E and be pressed on the surface of inner sleeve F, utilize the surface friction of locking briquetting E and inner sleeve F, outer sleeve A and inner sleeve F are locked together; Unclamp decenter clutch D and will lock the surface that briquetting E breaks away from inner sleeve F, can move mutually between inner sleeve F, the outer sleeve A.The shortcoming of this structure is: the weight of supporting is less, the tube wall of inner sleeve, outer sleeve is thinner, when the weight that supports is big, inner sleeve, outer sleeve all may produce distortion, locking mechanism utilizes fricative coupling mechanism force can not pin inner sleeve and outer sleeve, limit the using scope of tripod greatly, for example: when the Professional Photography amateur takes for a long time, wish that two hands are supported on the tripod or one ride on tripod, alter one's posture, lessening fatigue, but the camera crane sleeve pipe locking mechanism weight that can't bear weight like this at present.

3, summary of the invention:

The purpose of this utility model provides camera crane sleeve pipe locking mechanism, it will lock the tooth that protrudes the briquetting bottom surface and the teeth groove interlock on the thick tube wall inner sleeve or with the inner sleeve top inside the strengthening sleeve outer surface on the teeth groove interlock, the coupling mechanism force of locking mechanism is strengthened greatly, thereby widen the application area of tripod.

A kind of technological scheme of the present utility model is achieved in that it comprises outer sleeve, inner sleeve, chuck, decenter clutch, locking briquetting and bearing pin, inner sleeve is enclosed within the outer sleeve the inside, chuck is installed in the tail end of outer sleeve, decenter clutch is installed on the chuck by bearing pin, the locking briquetting places in the hole of outer sleeve tail end, the end face of locking briquetting is compressed by the top of decenter clutch, it also comprises strengthening sleeve in addition, strengthening sleeve is sleeved on the inside, top of inner sleeve, boss is protruded in a certain position on the strengthening sleeve outer surface, boss stretches out from the dead slot on the inner sleeve wall, locking briquetting bottom surface is protruding with tooth, boss also is provided with teeth groove, and locking briquetting bottom surface and boss end face stick together, and tooth and teeth groove are entrenched togather.

Above-mentioned described outer sleeve and inner sleeve can be square tube, pipe or three cornues.

Another kind of technological scheme of the present utility model is achieved in that it comprises outer sleeve, inner sleeve, chuck, decenter clutch, locking briquetting and bearing pin, inner sleeve is enclosed within the outer sleeve the inside, chuck is installed in the tail end of outer sleeve, decenter clutch is installed on the chuck by bearing pin, the locking briquetting places in the hole of outer sleeve tail end, the end face of locking briquetting is compressed by the top of decenter clutch, locking briquetting bottom surface is adjacent on the outer wall of inner sleeve, locking briquetting bottom surface is protruding with tooth, also be provided with teeth groove on the outer wall of inner sleeve, tooth and teeth groove are entrenched togather.

The utility model compared with prior art has following advantage: will lock the tooth that protrudes the briquetting bottom surface and the teeth groove interlock on the thick tube wall inner sleeve or with the inner sleeve top inside the strengthening sleeve outer surface on the teeth groove interlock, the coupling mechanism force of locking mechanism is strengthened greatly, thereby make the application area of widening tripod.

4, description of drawings:

Below in conjunction with accompanying drawing the utility model is done detailed explanation:

Fig. 1 is the structural representation of traditional tripod sleeve pipe locking mechanism;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the structure sectional view of first kind of technological scheme of the present utility model;

Fig. 4 is the B-B partial enlarged drawing of Fig. 3;

Fig. 5 is the structure sectional view of second kind of technological scheme of the present utility model;

Fig. 6 is the interlock view of locking briquetting and strengthening sleeve outer surface among Fig. 5;

Fig. 7 is the explosive view of locking briquetting and strengthening sleeve in second kind of technological scheme of the present utility model.

5, embodiment:

Embodiment 1: as Fig. 3, shown in Figure 4, the utility model can followingly be implemented: comprise outer sleeve 1, inner sleeve 2, chuck 3, decenter clutch 4, locking briquetting 5 and bearing pin 6, inner sleeve 2 is enclosed within outer sleeve 1 the inside, chuck 3 is installed in the tail end of outer sleeve 1, decenter clutch 4 is installed on the chuck 3 by bearing pin 6, locking briquetting 5 places 7 li in the hole of outer sleeve 1 tail end, the end face of locking briquetting 5 is compressed by the top of decenter clutch 4, locking briquetting 5 bottom surfaces are adjacent on the outer wall of inner sleeve 2, locking briquetting 5 bottom surfaces are protruding with tooth 9, also be provided with teeth groove 10 on the outer wall of inner sleeve 2, tooth 9 is entrenched togather with teeth groove 10.The inside, top of inner sleeve 2 also is equipped with strengthening sleeve 8.

Embodiment 2: the utility model also can followingly be implemented: as Fig. 5, Fig. 6, shown in Figure 7, the utility model comprises outer sleeve 1, inner sleeve 2, chuck 3, decenter clutch 4, locking briquetting 5 and bearing pin 6, inner sleeve 2 is enclosed within outer sleeve 1 the inside, chuck 3 is installed in the tail end of outer sleeve 1, decenter clutch 4 is installed on the chuck 3 by bearing pin 6, locking briquetting 5 places 7 li in the hole of outer sleeve 1 tail end, the end face of locking briquetting 5 is compressed by the top of decenter clutch 4, it also comprises strengthening sleeve 8 in addition, strengthening sleeve 8 is sleeved on the inside, top of inner sleeve 2, boss 11 is protruded in a certain position on strengthening sleeve 8 outer surfaces, boss 11 stretches out from the dead slot on inner sleeve 2 walls, and locking briquetting 5 bottom surfaces are protruding with tooth 9, and boss 11 also is provided with teeth groove 10, locking briquetting 5 bottom surfaces and boss 11 end faces stick together, and tooth 9 is entrenched togather with teeth groove 10.The tail end installed inside of outer sleeve 1 has pin pipe box 12, in the outside, inner sleeve 2 tops on-slip cover 13 is installed.

Claims

1, camera crane sleeve pipe locking mechanism, comprise outer sleeve (1), inner sleeve (2), chuck (3), decenter clutch (4), locking briquetting (5) and bearing pin (6), inner sleeve (2) is enclosed within outer sleeve (1) the inside, chuck (3) is installed in the tail end of outer sleeve (1), decenter clutch (4) is installed on the chuck (3) by bearing pin (6), locking briquetting (5) places the lining, hole (7) of outer sleeve (1) tail end, the end face of locking briquetting (5) is compressed by the top of decenter clutch (4), it is characterized in that it also comprises strengthening sleeve (8), strengthening sleeve (8) is sleeved on the inside, top of inner sleeve (2), boss (11) is protruded in a certain position on strengthening sleeve (8) outer surface, boss (11) stretches out from the dead slot on inner sleeve (2) wall, locking briquetting (5) bottom surface is protruding with tooth (9), boss (11) also is provided with teeth groove (10), locking briquetting (5) bottom surface and boss (11) end face stick together, and tooth (9) is entrenched togather with teeth groove (10).

2, camera crane sleeve pipe locking mechanism according to claim 1 is characterized in that outer sleeve (1), inner sleeve (2) can be square tube, pipe or three cornues.

3, camera crane sleeve pipe locking mechanism, comprise outer sleeve (1), inner sleeve (2), chuck (3), decenter clutch (4), locking briquetting (5) and bearing pin (6), inner sleeve (2) is enclosed within outer sleeve (1) the inside, chuck (3) is installed in the tail end of outer sleeve (1), decenter clutch (4) is installed on the chuck (3) by bearing pin (6), locking briquetting (5) places the lining, hole (7) of outer sleeve (1) tail end, the end face of locking briquetting (5) is compressed by the top of decenter clutch (4), locking briquetting (5) bottom surface is adjacent on the outer wall of inner sleeve (2), it is characterized in that locking briquetting (5) bottom surface and be protruding with tooth (9), also be provided with teeth groove (10) on the outer wall of inner sleeve (2), tooth (9) is entrenched togather with teeth groove (10).