A kind of tripod
Technical field
The present invention relates to the tripod of a kind of camera, vidicon camera.
Background technique
As shown in Figure 1 and Figure 2, the tripod leg of use is circulated extensively at present in the whole world, Al-alloy pipe or carbon fiber pipe mostly, their common ground is all upper coarse and lower fine, except it self has been defect that top heavy, center of gravity are too high, after it is by camera on frame, center of gravity is more raised, as shown in Figure 1, the height H 1 of its center of gravity G1 is almost close to the position of spider 1 soon, add dialling when photographer operates camera, pull, by some actions, capital is passed to farthest, also be that the thinnest joint, generation is trembled, impact photography.
Moreover in order to pursue the portability of tripod, total attempt is made tripod short, can not change under the principle stretching total height, the joint number of leg can only be increased, joint is long to be shortened, and is increased to five to six joints from original three to four joints, due to the restriction of the flex resistance of most details, no longer may consider thinner direction, can only be the past thick hair exhibition of outermost two joint, as shown in Figure 1, the spider 1 that connection so will be made to combine three legs will become too large, and the defect of top heavy is also just more tending towards serious.
Summary of the invention
Instant invention overcomes the technical problem existed in above-mentioned prior art, overthrown traditional installation method of tripod leg, provided the tripod that a kind of leg is up-thin-low-thick, tripod center of gravity is reduced, more firmly, and the size of spider can be reduced.
Technological scheme of the present invention is achieved in that
A kind of tripod, comprise spider and three supporting legs, described supporting leg is socketed to form by some pipe joint parts, and described supporting leg is thicker gradually from top to bottom.
As preferably, described supporting leg is socketed to form by 3 ~ 6 pipe joint parts.
Pulled button is cross setting in the past, and cocked, the locking action of its correspondence are also horizontal; For the tripod of one five joint, usually it has the locking in 12 joints to pull button, and be all that horizontal Dan Li pulls button, just have to first do 12 actions of releasing to use, then pipe fitting does 12 fastening actions again after stretching out, if moved for stealing the show, once just must repeat to do 24 actions again, seem that some is wordy time-consuming, and unsatisfactory, as preferably, be provided with one between every two joint adjacent pipe sections for what lock and pull button, described button of pulling arranges along tubular length direction, and button of pulling adjacent from top to bottom overlaps successively.Invention further provides longitudinally arrange chain and pull button, and upper one is pulled button and rides over the next one and pull and buckle, as long as make lock joint time stir go up most one pull button time, other several be connected touch pull button also can with gesture glide answer gesture to fall down, to lock joint.As long as otherwise and upwards stir the most next button of pulling when opening joint, taking advantage of a situation up just to make all buttons of pulling all open, thus makes joints open.By the utilization of this mechanism, the time can try to be the first 70%.
As preferably, pull between button for adjacent two, pull button and ride over the next one and pull on the position of button 1/4 ~ 1/2 length for upper one.
As preferably, this tripod also includes the center tube being arranged on spider bottom, rotate in the lower end of center tube and be provided with a locking plate, locking plate is for being horizontally disposed with, locking plate periphery is evenly provided with three leaf wedge lock sheets, the thickness of lock sheet is thick by being thinned to along locking plate circumferencial direction, is provided with the locking slot with lock sheet phase wedging at every supporting leg lower end inside.The present invention is further at tripod root of a central tube, rotate the locking plate being provided with a tri-lobed, 120 degree is climb, often climbing lock sheet is all that one side is thinner, and tripod supporting leg receives the length at the end entirely, fill the position of lock sheet just, also be just in time the position of lock sheet cross-section facing to foot pad, and on foot pad, have the locking slot of corresponding shaping crosscut shape, three leaf lock sheeies of locking plate are by being cooked clockwise 120 degree of rotations, the thin actinal surface of three leaf lock sheeies enters the locking slot of three foots pad respectively, three supporting legs progressively thickening of sheet that be all locked is locked with the progressively inclination of groove this moment, as do counterclockwise 120 degree just released, and other all are pulled button and all can be in relaxed state and need not to its fastening.By the utilization of this mechanism, moving between photography is carried out can to the greatest convenience of user, and all buttons of pulling can be run under relaxed state, can not cause running trouble again because of stretching out of leg, the time tried to be the first again another 70%.
Have employed the invention has the beneficial effects as follows of technique scheme:
1, the diameter of spider can reduce greatly, allows design completely can content with funtion easily, and the needs that outward appearance is well-balanced, and whole structure can do very well.
Center of gravity when 2, using also reduces greatly, and after device camera, tripod is more firm.
3, big legs position lands and adds friction over the ground, and the interference operated greatly reduces.
4, thin leg position is connected with spider, and original load is maximum, position the thinest again, now but be fixed on spider firmly, it no longer bears whole loads, but only bears the original nearly power of half of transmission, thus makes each parts bearing distribution more reasonable.
5, the inverted design result of such thickness, the deadweight that can make full use of leg minor details pipe improves the speed stretching one's legs or receive leg.
Accompanying drawing explanation
Fig. 1 is the using state figure of tripod in prior art;
Fig. 2 is the structural representation of tripod leg in prior art;
Fig. 3 is the using state figure of tripod of the present invention;
Fig. 4 is the structural representation of tripod supporting leg of the present invention;
Fig. 5 pulls button view in the locked condition;
Fig. 6 pulls button view in the on-state
Fig. 7 is the fractionation structural representation of tripod locking plate of the present invention and supporting leg;
Fig. 8 is the perspective view of locking plate of the present invention.
Embodiment
The specific embodiment of the present invention is as follows:
Embodiment: a kind of tripod, as shown in Figure 3, comprise spider 1 and three supporting legs 2 being connected spider 1, as shown in Figure 4, described supporting leg 2 is socketed to form by some pipe joint parts 3, described supporting leg 2 is thicker gradually from top to bottom, and namely supporting leg 2 is by the top at spider 1 place to end, and the external diameter of the pipe fitting 3 of composition supporting leg 2 becomes large gradually.
As seen from Figure 3, after it is by camera on frame, the height H 2 of center of gravity G2 is reduced to the half height of tripod, use more firm, and because the supporting leg pipe fitting topmost connecting spider 1 attenuates, what make the volume of spider 1 can do as compared with the past is less, allow design completely can content with funtion easily, and the needs that outward appearance is well-balanced, whole structure can do very well.
Further, as shown in Figure 5, Figure 6, be provided with one for what lock and pull button 4 between every two joint adjacent pipe sections 3, described button 4 of pulling arranges along tubular length direction, and button 4 of pulling adjacent from top to bottom overlaps successively; Pull between button 4 for adjacent two, pull button and ride over the next one and pull on the position of button 1/3 length for upper one.
As shown in Figure 5, lock joint time, as long as stir uppermost one downwards to pull button, other three be connected touch pull button also can with gesture glide answer gesture to fall down, to lock joint.
Otherwise, when opening joint, as shown in Figure 6, as long as upwards stirring the most next button of pulling, taking advantage of a situation and all buttons of pulling up just can be made all to open, thus making joints open.
Have employed and above-mentionedly pull button locking mechanism, for the tripod of one five joint, as long as three legs just do 6 actions just can complete original 24 actions that circulate, can try to be the first the time about 70%.
Further, as shown in Figure 7, Figure 8, this tripod also includes the center tube 5 being arranged on spider bottom, rotate in the lower end of center tube 5 and be provided with a locking plate 6, locking plate 6 is for being horizontally disposed with, locking plate 6 periphery is evenly provided with three leaf wedge lock sheets 7, and the thickness of lock sheet 7 is thick by being thinned to along locking plate 6 circumferencial direction, is provided with the locking slot 9 with lock sheet 7 phase wedging inside the foot pad 8 bottom every supporting leg 2.
When photographer moves tripod to another ground from a ground, can by each for supporting leg tubing contracts on earth first, just in time now the position of the thin actinal surface of lock sheet facing to foot pad locking slot, three leaf lock sheeies of locking plate are by being cooked clockwise 120 degree of rotations, the thin actinal surface of three leaf lock sheeies enters the locking slot of three foots pad respectively, three supporting legs progressively thickening of sheet that be all locked is locked with the progressively inclination of groove this moment, and all on supporting leg are pulled button and all can be in relaxed state and need not to its fastening, each pipe fitting also can not stretch out because of not having fastening to pull button; After moving to destination, again counterclockwise 120 degree of rotations are done to locking plate, make supporting leg released with regard to making lock sheet shift out foot pad, all buttons of pulling make not only the stretching, extension of supporting leg but also very fast because being in relaxed state, thus make photographer effectively save time to capture valuable camera lens.After this locking mechanism of use, pull exactly tight chain of padlock pull button function all can be abandoned need not, and the time tried to be the first again another 70%.