CN201521777U

CN201521777U - Tripod

Info

Publication number: CN201521777U
Application number: CN2009201702862U
Authority: CN
Inventors: 梁凤娥
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-07
Filing date: 2009-09-07
Publication date: 2010-07-07
Anticipated expiration: 2019-09-07

Abstract

The utility model discloses a tripod. The tripod comprises a base, three legs arranged on the periphery of the base in the pivoted manner, a first locking mechanism, three groups of drive chains, and an actuation mechanism, wherein the each leg includes a first pipe fitting and a second pipe fitting telescopically sheathed in the first pipe fitting; the first locking mechanism is arranged between the first pipe fitting and the second pipe fitting of each leg for locking the second pipe fitting in relative to the first pipe fitting so as to prevent the telescopic movement of the second pipe fitting relative to the first pipe fitting; the three groups of drive chains respectively extend into each leg from the base and are coupled with the corresponding first locking mechanism for driving the corresponding first locking mechanism to lock or unlock the second pipe fitting; and the actuation mechanism is arranged in the base and is synchronously coupled with the three groups of drive chains to actuate the drive chains. Accordingly, the legs of the tripod can be synchronously locked quickly, so that the tripod can be expanded rapidly.

Description

Tripod

Technical field

The utility model relates to a kind of tripod that is used for stablizing photographic goods or other instruments, equipment, particularly relates to the tripod that a kind of each leg can be locked simultaneously and rapidly.

Background technique

In order to stablize photographic goods or other instruments, can use tripod to support these photographic goods or instrument usually to photograph, to make a video recording or to operate.This type of tripod generally comprises three scalable legs and is in the leg top to support the object table of photographic goods or instrument.In use, need three scalable legs are stretched to the length that Len req also locks each leg respectively respectively, make each leg be launched into required angle then with respect to object table and make its bottom be seated on the ground, at last on object table fixedly photographic goods photograph or other instruments or equipment operated.

At present, the tripod on the market mainly focuses on and reduces its weight, in the hope of easy to carry.Yet the operation that launches and pack up these tripods is quite loaded down with trivial details, time-consuming.The three nodal pattern tripods that comprise three pipe fittings with every leg are example, and three pipe fittings that connect every leg just need two joints, and whole tripod needs six joints altogether.In order to lock the length of each leg, with regard to needing two joints are operated, so that the upper and lower pipe fitting that is attached thereto locks relatively.Thereby, a tripod is installed just need be operated six joints, make that the work that these tripods are installed is quite loaded down with trivial details, the required installation time is also longer relatively.

Though for ease of installing, " locking system soon " adopted in the joint of most of tripod.When need lock each pipe fitting, only need to stir the snap close of fast lock system, just can " " the fixed two adjacent pipe fittings of a sound lock.For three nodal pattern tripods, need " " could lock the length of each leg six, thus adopt the tripod of " locking system soon " still not reach the effect of quick mounting.If tripod is the four nodal pattern tripods that comprise four pipe fittings, then above-mentioned fitting operation will be more loaded down with trivial details, time-consuming.

Like this, in the time need carrying out " snapping " in the face of accident, the above-mentioned defective of these traditional tripods just is completely exposed more.

When shooting or end of operation or need that conversion is local to continue to take or during operation, need pack up tripod by being reversed aforesaid operations, yet this reverse operating is equally very loaded down with trivial details, time-consuming.

In addition, every leg bottom can connect a pin nail, so that tripod is seated on the ground.Yet in order to adapt to the needs in different places, a cover tripod generally includes plastic foot nail and metal leg nail.When tripod will be seated on wooden, the marble ground and when needing protection ground, just need connect plastic foot at tripod bottom and follow closely.When tripod will be seated outdoor snowfield, mud ground and the pin nail need be inserted ground the time, just need connect metal leg at tripod bottom and follow closely.In these cases, traditional tripod need be dismantled pin nail originally, to change the pin nail of another type.This has more increased the fussy degree that tripod is installed.

The model utility content

The purpose of this utility model is to provide a kind of tripod, to address the above problem.

The purpose of this utility model is achieved in that and promptly proposes a kind of tripod that it comprises: pedestal; Three legs that are pivotally installed in this pedestal periphery, each leg comprise first pipe fitting and second pipe fitting, and this second pipe fitting telescopically is set in this first pipe fitting; Be arranged at first pipe fitting of each leg and first locking framework between second pipe fitting, it locks this second pipe fitting to stop this second pipe fitting with respect to this first pipe fitting telescopic moving with respect to this first pipe fitting; Three groups of Transmitted chainss are coupled to each leg and with corresponding first locking framework from this base extension respectively, to drive corresponding first locking framework second pipe fitting are locked or release; Actuating mechanism is arranged at these three groups of Transmitted chainss that also are coupled synchronously in this pedestal so that it is activated.

In addition, this tripod also can comprise three groups of leg angle regulating unit, and it is arranged at respectively between this pedestal and each the leg link, pivots with respect to this pedestal to stop respective leg with respect to this pedestal selective lock respective leg; These three groups of leg angle regulating unit are coupled in this actuating assembly, with under activating at this actuating assembly with respect to this pedestal release respective leg.

Advantage of the present utility model is that each leg of tripod of the present utility model can be locked simultaneously and rapidly, thereby can this tripod of rapid deployment.

Description of drawings

By the detailed description of the utility model being made below in conjunction with accompanying drawing, above-mentioned and/or other characteristics of the present utility model and advantage will become clearer, and each assembly or parts only are schematically among the figure, and proportionally do not illustrate, wherein:

Fig. 1 is the schematic representation of the utility model tripod under collapsed state;

Fig. 2 is the schematic representation of the utility model tripod under deployed condition;

Fig. 3 is the plan view of tripod shown in Figure 1;

Fig. 4 is the sectional view that the utility model tripod is cut open in the cross section along A-A among Fig. 3;

Fig. 5 is the sectional view that the utility model tripod is cut open in the cross section along B-B among Fig. 3;

Fig. 6 is the decomposing schematic representation of the pedestal in the utility model tripod;

Fig. 7 is the sectional view that the pedestal of the utility model tripod is cut open in the cross section along C-C among Fig. 4;

Fig. 8 is the worm's eye view of the rotating disk of the utility model tripod;

Fig. 9 is the plan view of the rotating disk of the utility model tripod;

Figure 10 is the schematic representation that the pedestal of the utility model tripod is cut open in the cross section along D-D among Fig. 4;

Figure 11 is the schematic representation that handle that the utility model tripod is shown is in dust cover state of living under the state of lifting;

Figure 12 is the schematic representation that the pedestal of the utility model tripod is cut open in the cross section along E-E among Fig. 4, and its handle that is illustrated in the utility model tripod is in the lock state down dustproof side plate state of living in;

Figure 13 is the schematic representation that the pedestal of the utility model tripod is cut open in the cross section along E-E among Fig. 4, and its handle that is illustrated in the utility model tripod is in the schematic representation of dustproof side plate state of living under the releasing orientation;

Figure 14 is the side elevation in partial section of the utility model tripod under collapsed state;

Figure 15 is the side elevation in partial section of the utility model tripod under deployed condition;

Figure 16 and Figure 17 illustrate the pedestal of the utility model tripod and the schematic representation of leg annexation;

Figure 18 is the sectional view that the leg of the utility model tripod is cut open in the cross section along F-F among Figure 14;

Figure 19 is the sectional view that the leg of the utility model tripod is cut open in the cross section along G-G among Figure 14;

Figure 20 is the sectional view that the leg of the utility model tripod is cut open in the cross section along H-H among Figure 14;

Figure 21 is the sectional view that the leg of the utility model tripod is cut open in the cross section along I-I among Figure 14;

Figure 22 is the sectional view that the leg of the utility model tripod is cut open in the cross section along J-J among Figure 14;

Figure 23 is the sectional view that the leg of the utility model tripod is cut open in the cross section along K-K among Figure 14;

Figure 24 is the sectional view that the leg of the utility model tripod is cut open in the cross section along L-L among Figure 14;

Figure 25 is the sectional view that the leg of the utility model tripod is cut open in the cross section along M-M among Figure 14;

Figure 26 is the sectional view that the leg of the utility model tripod is cut open in the cross section along N-N among Figure 15;

Figure 27 is the sectional view that the leg of the utility model tripod is cut open in the cross section along O-O among Figure 15;

Figure 28 is the sectional view that the leg of the utility model tripod is cut open in the cross section along P-P among Figure 15;

Figure 29 is the sectional view that the leg of the utility model tripod is cut open in the cross section along Q-Q among Figure 15;

Figure 30 is the sectional view that the leg of the utility model tripod is cut open in the cross section along R-R among Figure 15;

Figure 31 is the sectional view that the leg of the utility model tripod is cut open in the cross section along S-S among Figure 15;

Figure 32 is the sectional view that the leg of the utility model tripod is cut open in the cross section along T-T among Figure 15;

Figure 33 is the sectional view that the leg of the utility model tripod is cut open in the cross section along U-U among Figure 15;

The handle that Figure 34 illustrates the utility model tripod is in the lock state the position relation between lower rotary table and each gear;

The handle that Figure 35 illustrates the utility model tripod is in the position relation between releasing orientation lower rotary table and each gear;

Figure 36 is the utility model tripod drive connection schematic representation;

Figure 37 is the stereogram of separating the lock unit original state of the utility model tripod legs;

Figure 38 is the schematic representation of separating the lock unit original state of the utility model tripod legs;

Figure 39 is the stereogram of the release cell operation state of the utility model tripod legs;

Figure 40 is the schematic representation of the release cell operation state of the utility model tripod legs;

Figure 41 illustrates the pin nail of the utility model tripod and the sectional view of the annexation of leg;

Figure 42 is the sectional view that the leg of the utility model tripod is cut open in the cross section along V-V among Figure 41;

Figure 43 is the sectional view that the leg of the utility model tripod is cut open in the cross section along W-W among Figure 41;

Figure 44 is the sectional view that the leg of the utility model tripod is cut open in the cross section along X-X among Figure 41;

Figure 45 is the sectional view that the leg of the utility model tripod is cut open along the Y-Y cross section of Figure 41;

Figure 46 is the schematic representation that the damping device suction stroke of the utility model tripod is shown;

Figure 47 is the schematic representation that the damping device exhaust stroke of the utility model tripod is shown;

Figure 48 is the sectional view that the leg of the utility model tripod is cut open along the Z-Z cross section of Figure 41, and it illustrates the pin screw assembly location unit of the utility model tripod;

Figure 48 A is the schematic representation of the curvilinear groove in the pin screw assembly location unit of the utility model tripod;

Figure 49 is the schematic representation that pin screw assembly that the utility model tripod is shown is in the state of stretching out; And

Figure 50 is the schematic representation that pin screw assembly that the utility model tripod is shown is in retracted mode, and wherein the pin nail has been replaced with the metal leg nail.

Embodiment

As illustrated in fig. 1 and 2, tripod of the present utility model mainly comprises: pedestal 1; Three legs 2 that are pivotally installed on the pedestal; Run through pedestal and relative pedestal axis 3 moving up and down vertically and be set in the Central axis locking device 4 that locks axis on the axis with relative pedestal.Each leg 2 of the utility model tripod comprises two pipe fittings at least, but also can comprise three or more pipe fittings.In the example shown in the figure, each leg 2 comprises four pipe fittings 5,6,7,8 respectively.Preferably, as shown in Figure 3, three legs 2 are evenly turned up the soil at interval each other and are arranged in pedestal 1 periphery.

With reference to accompanying drawing 3-14, pedestal 1 comprises Base body 11, be fastened on the pedestal inner cap 14 on the Base body 11 and be arranged at pedestal enclosing cover 15 on the pedestal inner cap 14.Rotating disk 12 rotatably is set between this Base body 11 and pedestal inner cap 14 and is incorporated into the actuating assembly 13 of rotating disk 12 so that it is activated.In addition, three group of first gear 17 is arranged at Base body 11 sidepieces at each interval between Base body 11 and pedestal inner cap 14, to contact with rotating disk 12.Three groups of second gears 18 that are engaged with each other and the 3rd gear 19 are also turned up the soil at interval and are arranged at Base body 11 sidepieces.

This Base body 11 comprises: end basin 110, its upper surface are formed with the depression 111 of holding rotating disk 12; From end basin 110 central upwardly extending columns 112, it forms in order to the center hole of admitting axis 3 and is formed with outside thread 113 on the outer surface at an upper portion thereof; Annular positioning groove 114 in column 112 is formed at depression 111, the stopping projection 1141 a pair of respect to one another (referring to Fig. 7) that forms in this locating slot 114; Be spaced apart from each other from outward extending three pack supports 115 of end basin 110 sidewalls (referring to Fig. 6 and 14), each pack support comprises that respectively two isolated cantilevers are to be used to support the second and the 3rd gear 18,19; Contiguous each support 115 is formed at first opening 116 on the end basin sidewall, stretches out Base body 11 for the output shaft 20 that connects first gear 17; In each support, be formed at second opening 117 on end basin 110 sides, contact with the rotating disk 12 of depression in 111 for second gear 18; And first safety cover 118 of each first opening, 116 downsides formation.For the ease of discharging water or the impurity in the end basin 110, can in locating slot 114, form a plurality of pod apertures 1142 that run through end basin 110.

It is cone-shaped that rotating disk 12 integral body are tip circle, and be formed with center hole 120, so that be set on the Base body column 112.Rotating disk 12 comprises a pair of positioning block 121 that is formed at relative to one another on the rotating disk bottom surface, thereby when being installed on rotating disk 12 in the Base body 11, positioning block 121 is located in the Base body locating slot 114.Be provided with spring 122 between the corresponding stopping projection 1141 in each positioning block 121 and the Base body locating slot 114, it is tending towards positioning block 121 is resisted against (referring to Fig. 7) on another stopping projection respectively.The rotating disk 12 lower surfaces outside is formed with annular concave surface 123.Be formed with the tooth bar 124 (referring to Fig. 8) of three sections each intervals on this concave surface 123, optionally to mesh with second gear 18 respectively.The dish circumference that rotates on rotating disk 12 tapered side is formed with a plurality of teeth 125 (referring to Fig. 9), to be meshed with first gear 17.The upper surface of rotating disk 12 is formed with counterbore 126 around center hole 120, to admit actuating assembly 13.In counterbore 126, be formed with semicircle guiding groove 127 around center hole 120.For the ease of discharging water or the impurity in the rotating disk 12, can in guiding groove 127, form a plurality of pod apertures 1271 that run through rotating disk 12.

Actuating assembly 13 comprises: be received in the base plate 130 in the rotating disk counterbore 126; Base plate 130 central authorities are formed with center hole 131, to be set on the Base body column 112; The guide pad 132 that extends downwards from base plate 130 bottom surfaces, it is located in the rotating disk guiding groove 127 when being installed on actuating assembly 13 in the rotating disk 12.A pair of spring 133 is set in the rotating disk guiding groove 127, and each both ends of the spring is resisted against respectively on the end and guide pad 132 of semicircle guiding groove 127, to be tending towards making actuating assembly 13 equilibrium position (referring to Figure 10) that mediates.Actuating assembly 13 also comprises from the upwardly extending pillar 134 of the end face of base plate 130, and the handle 135 that is incorporated into pillar 134 tops pivotally, the height of its B-C post 134 is defined as making its top to be in pedestal inner cap 14 upsides, and the end of handle 135 extends to outside the pedestal enclosing cover 15.

Pedestal inner cap 14 is formed with center hole 140, so that be set on the pillar 134 of Base body column 112 and actuating assembly.Pedestal inner cap 14 bottom surfaces are formed with and rotating disk counterbore 126 corresponding counterbores 141, and it is fastened on the base plate 130 of actuating assembly, with the match length travel of incompatible restriction actuating assembly 13 of rotating disk counterbore 126.Turn up the soil at interval and be provided with three concavity receiving channels 142 in pedestal inner cap 14 bottom surfaces, first gear 17 and the tooth 125 of rotating disk side are meshed.Pedestal inner cap side and Base body first safety cover 118 is formed with second safety cover 143 on the relative position, and first, second safety cover is filled the span of a man's arms into safety cover on the semicircle tubular (referring to Fig. 5).After being fastened on pedestal inner cap 14 on the Base body 11, can pass through link, for example screw (referring to Fig. 4) is fastening with both, to limit the length travel of the parts that hold between the two.

Pedestal enclosing cover 15 forms receiving cavities 150, rotate therein for the pillar 134 of actuating assembly 13 and the inner of handle 135, and its center of top is formed with center hole 151, to be set on the Base body column 112.Be formed with opening 152 on the sidewall of pedestal enclosing cover 15, stretch out this pedestal enclosing cover for the outer end of handle 135.Be formed with "T"-shaped protruding 153 (referring to Fig. 1) in this opening 152.Thereby handle 135 can turn to opposite side from a side of "T"-shaped projection, and realizes locking and the conversion of unclamping two states hereinafter describing to its state exchange in detail.

This pedestal 1 can also comprise twists the tightening nut 16 that closes on the outside thread 1131 on column 112 tops, and so that pedestal enclosing cover 15 is pressed against on the pedestal inner cap 14, wherein outside thread 1131 is formed at the downside of outside thread 113, and its external diameter is greater than the external diameter of outside thread 113.

Axis 3 is set in the center hole of pedestal column 112, and its upper end is provided with object table 31.Object table 31 end face central authorities are provided with threaded stem 32, to connect photographic goods or instrument (not shown).Axis 3 bottoms can be provided with counterweight hook 33, stablize this tripod to hang the counterweight (not shown).

Central axis locking device 4 comprises lock main body 41 and ring wedge 42.Lock main body 41 is formed with on center hole 410 and this center bore inner wall and is formed with internal thread 411, and wherein, the aperture, upper end of center hole 410 is less than the aperture, lower end.The internal thread 411 of this lock main body is meshed with the outside thread 113 on column 112 tops, and ring wedge 42 is arranged in center hole 410 between column 112 and the axis 3 simultaneously.When needs lock the position of axis 3, just the lock main body is twisted more tightly and close on outside thread 113, thereby push ring wedge 42 downwards, it is wedged between column and the axis more tightly, reach the purpose of locking axis.When needs loosen axis 3, just loosen ring wedge 42 by unscrewing lock main body 41.

In addition, wherein movable part is caused retardance, dustproof loam cake 21 can be set in the receiving cavity 150 of pedestal enclosing cover 15 in order to reduce that dust enters in the pedestal.Dustproof loam cake 21 comprises the opening 211 that passes for column 112 and supplies the pivot 212 (referring to Figure 12) of dustproof loam cake 21 around its pivot.Cover in pedestal enclosing cover and the pedestal and be respectively arranged with the upper and lower supporting element 213,214 that fastens each other, with supporting pivot 212.Support plate 215 extends from pivot 212 on the direction that deviates from dustproof loam cake 21, is provided with spring 216 between itself and the lower support element 214.Spring 216 is tending towards upwards promoting support plate 215, is pressed against (referring to Fig. 4) on the handle 135 with the loam cake 21 that will prevent dust.Thus, when "T"-shaped protruding 153 moved, dustproof loam cake 21 was close to and is moved (referring to Figure 11) on the handle 135 together at handle 135.

In addition, enter in the pedestal 1 from opening 152, can the dustproof side plate 22 of a pair of arc be set around pedestal enclosing cover 15 inwalls for preventing dust.Dustproof side plate 22 is arranged at handle 135 both sides respectively, and is located in slidably in the annular groove 144 of pedestal inner cap 14 end faces formation.By spring 221 tractions, the two ends of each spring 221 are individually fixed on the dustproof sidepiece and pedestal enclosing cover 15 of side plate 22 away from handle 135 each dustproof side plate 22, thereby are tending towards dustproof side plate 22 is pressed against (referring to Figure 12 and 13) on the handle 135 respectively.Thus, when the "T"-shaped projection of handle 135 in opening 152 was mobile, dustproof side plate 22 was close to handle 135 and is moved together.

Figure 14-40 show the utility model tripod leg 2 and with the annexation of pedestal 1.The structure of each leg of the utility model is identical, so be that example describes with a leg only at this.

Leg 2 is incorporated into pedestal 1 by leg link 23.Leg link 23 is fixedly connected on the top of leg first pipe fitting 5, and comprises a pair of connecting sheet 231 that extends straight up from its end face.This is cross-placed on support 115 both sides of pedestal to connecting sheet 231, and is pivotally connected on support 115 by the back shaft 232 of the 3rd gear 19.Be provided with leg angle adjustment bar 24 between the 3rd gear 19 and leg link 23 end faces, its end 241 near the leg inboard is pivotally connected on the leg link 23, and its end near an outside of foot is a free end.This adjustable lever 24 is formed with a plurality of teeth 243 towards the upper surface middle part of the 3rd gear 19, to be meshed with the 3rd gear 19; And it is supported by spring 242 towards the lower surface of leg link 23 middle part, the tooth 243 at adjustable lever 24 middle parts is pushed against on the 3rd gear 19 (referring to Fig. 5) being tending towards.

On the position of leg link 23 next-door neighbour's connecting sheets 231, form attachment tabs 233, and it is provided with safety cover 25 under the semicircle tubular that is sleeved in the safety cover.

The output shaft 20 of each first gear 17 extends to be formed by separately upper and lower safety cover and protects in the chamber, and is connected with first ratchet 26 at its end.Be provided with second ratchet 27 with first ratchet 26 engagement ground, this second ratchet 27 is in the protection chamber equally, and its output shaft 28 to extend to leg 2 interior and be pivotally connected to the first column transmission shaft 281 in leg 2.First ratchet 26 and second ratchet 27 can be six pawl pawls.When leg 2 is rotated with respect to pedestal 1; the connecting sheet 231 of leg link 23 just rotates with respect to the support 115 of pedestal; meanwhile play safety cover 25 just in last safety cover, to rotate, until safety cover and/or attachment tabs are resisted against the lower edge of safety cover down.In this process, first and

second ratchets

26,27 remain engagement (referring to Figure 16 and 17).

Referring to Figure 14 and Figure 15, each leg 2 of the present utility model comprises four pipe fittings, i.e. first pipe fitting 5, second pipe fitting 6, the 3rd pipe fitting 7 and the 4th pipe fitting 8.First pipe fitting 5 comprises tube-like envelope 51, and these shell 51 upper and lower end are open, and its upper end is connected on the leg link 23.The whole height of shell 51 inwall upper edge shells 51 is formed with two groups of positioning hole groups 52.These two groups of positioning hole groups 52 are the angle with respect to shell 51 centers and are symmetrically distributed, and comprise the positioning hole 521 (referring to Figure 18 and 26) of a plurality of consistencies from top to bottom respectively.Shell 51 inwalls bottom is formed with chock 53, shifts out fully outside first pipe fitting 5 to prevent second pipe fitting 6, hereinafter will describe in detail to it.

Second pipe fitting 6 comprises the tube-like envelope 61 that can be set in up or down in the first pipe fitting shell 51.One carriage 62 is fixed in shell 61 upper ends, and comprises the upper and lower supporting plate that is spaced apart from each other.The first column transmission shaft 281 runs through this carriage 62, and this carriage 62 rotates freely relatively.Be subjected to powershift gear 63 and work done gear to be held on up and down between the supporting plate of carriage 62 about in the of 64 stackedly, and be set on the first column transmission shaft 281.Be subjected to the cross section of powershift gear 63 center holes to form rectangle, and be sized to be a bit larger tham the size of the first column transmission shaft, 281 cross sections, thereby in the time will being subjected to powershift gear 63 to be set on this first column transmission shaft, it can slide along the length direction of this first column transmission shaft, but can not relative first column transmission shaft rotation (referring to Figure 19 and 28).Yet the size of work done gear 64 center holes but is defined as can rotating freely (referring to Figure 20 and 28) with respect to this first column transmission shaft when it is set on the first column transmission shaft.Be subjected to connect by spring 65 between powershift gear 63 and the work done gear 64, this spring one end is fixed in and is subjected on the powershift gear 63, and the other end is fixed on the work done gear 64.Thereby, drive when being subjected to powershift gear 63 rotations when 281 rotations of the first column transmission shaft, be subjected to powershift gear 63 to drive work done gear 64 rotation together by spring 65.

The first column transmission shaft, 281 lower ends are provided with pin 2811 and pad 2812, and its Intermediate gasket 2812 is arranged on the carriage 62.The endoporus of this pad 2812 is a rectangle, and size is a bit larger tham column transmission shaft 281 cross-sectional dimension.Thereby this pad 2812 can prevent that pin 2811 from entering in the center hole of work done gear 64.

Driven gear 66 is held on being meshed between the supporting plate and with being subjected to powershift gear 63 up and down of carriage 62.The second column transmission shaft 282 is incorporated into this driven gear 66 regularly, and can rotate freely ground extension downwards with respect to this carriage 62.For example, this driven gear 66 is formed with the center hole that cross section is a rectangle (referring to Figure 19), and be sized to be a bit larger tham the size of the second column transmission shaft 282, thereby on driven gear 66 being set in this second column transmission shaft the time, it can not relative second column transmission shaft rotation.

In addition, position at second column transmission shaft next-door neighbour's carriage supporting plate about in the of 62 is provided with pin 2821 and pad 2822, its Intermediate gasket 2822 is in pin 2821 and up and down between the supporting plate, thereby to prevent that the second column transmission shaft 282 from vertically moving (referring to Figure 29) with respect to driven gear 66.Simultaneously, owing to pad 2822 can be distributed to the longitudinal thrust of the second column transmission shaft 282 on the carriage 62, thus can be so that excessive longitudinal thrust can not born in driven gear 66 two ends.

Leg second pipe fitting 6 also comprises stop block 69 and the thrust spring 692 (referring to Figure 21 and 30) that is arranged in the carriage 62.These stop block 69 1 ends are pivotally installed in the carriage 62 and comprise the stop protrusion 691 of extending outside carriages 62.These thrust spring 692 1 ends are resisted against on the carriage 62, and the other end is resisted against on the stop block, to be tending towards that stop protrusion 691 is released the opening 611 that runs through shell 61 and carriage 62 sidewalls.Thus, when the upper end of second pipe fitting 6 slides into first pipe fitting 5 terminal, the stop protrusion 691 of stop block 69 will and be resisted against on the chock 53 of first pipe fitting from last contact, thereby stop second pipe fitting 6 to skid off outside first pipe fitting 5.

In order to lock this second pipe fitting with respect to first pipe fitting when packing up leg second pipe fitting, this second pipe fitting 6 also comprises the lock cell 67 (referring to Figure 20 and 37) that is arranged at work done gear 64 1 sides.This lock cell comprises: substrate 671; In the tooth bar 672 of real estate to the end formation of work done gear 64, this tooth bar and work done gear engagement; And the divergent ends 673 that the end relative with an end that forms tooth bar forms on the substrate 671.This divergent ends 673 comprises the locating stud 6731 that at least one matches with positioning hole 521 on first pipe fitting 5.Simultaneously, on the shell 61 of second pipe fitting 6 and carriage 62, be formed with the opening 612 that passes for locating stud 6731.Thereby, when work done gear 64 clockwise rotates (observing from upside), it drives substrate 671 by tooth bar 672 and moves towards opening 612, make the locating stud 6731 of divergent ends 673 pass carriage and shell and insert in the positioning hole 521 of first pipe fitting 5, thereby lock first and second pipe fittings, and second pipe fitting that can't stretch.

Preferably, in order to keep balance, can another lock cell 68 be set for this second pipe fitting 6, this lock cell 68 and lock cell 67 are symmetrically distributed with respect to 64 one-tenth angles of work done gear, thereby the locating stud of its divergent ends can optionally insert in the positioning hole of another group positioning hole group of first pipe fitting.Because two lock cell structures are similar substantially, no longer give unnecessary details at this.

Finely tune for the length of can be under the blocked situation of whole location footprint second pipe fitting 6 being stretched out first pipe fitting 5, can be provided with on second pipe fitting 6 and separate lock unit 60, it comprises: the traction unit 601 that is arranged on the second pipe fitting shell, 61 bottoms; Be arranged at the actuator block 602 of lock cell substrate 671 side surfaces; Near actuator block 602 and moving up and down being arranged at activates wedges 603 in the carriage 62; Thrust spring 604, its two ends are resisted against carriage 62 respectively and activate on the wedge 603, to be tending towards that actuating wedge 603 is pushed away actuator block 602; And traction rope 605, the one end is fixed in and activates on the wedge 603, and the other end passes the shell 61 of second pipe fitting 6 and be fixed in (referring to Figure 27) on the traction unit 601.This traction unit 601 comprises the framework 6011 that is fixed in outer surface of outer cover; Be arranged at the pivoted arm 6012 on this framework 6011 pivotly; Be incorporated into pivoted arm 6012 free-ended retaining pieces 6013.Preferably, this retaining piece 6013 is arranged in the groove 6014 that framework 6,011 one sides form.The end that traction rope 605 is fixed in traction unit 601 just is fixed in (referring to Figure 38) on the retaining piece 6013.

Thereby, when pushing this retaining piece 6013, traction rope 605 drive actuating wedges 603 overcome the thrust of thrust spring 604 and move down, promote lock cell 67 towards carriage 62 inner moving by actuator block 602 thus, thereby locating stud 6731 shifts out positioning hole 521, makes can to move with respect to the latter with respect to 5 releases of first pipe fitting by second pipe fitting 6.

Comprise under the situation of lock cell 68 at second pipe fitting 6, the tooth bar 672 of lock cell 67 orders about work done gear 64 and rotates counterclockwise (observing from upside), drive lock cell 68 thus simultaneously towards carriage 62 inner moving, remove the locking (referring to Figure 39 and 40) between first, second pipe fitting thereby the locating stud of lock cell 68 also shifts out from the positioning hole of first pipe fitting.

When adjusting second pipe fitting 6 and after discharging retaining piece 6013 with respect to the position of first pipe fitting 5, thrust spring 604 will activate wedge 603 and push away actuator block 602, thereby under the return action power of spring 65, work done gear 64 turns clockwise again, drive two lock cells and outside carriage 62, move, thereby lock second pipe fitting 6 again with respect to first pipe fitting 5.

In addition, on the position of staggering with the positioning hole group 52 of first pipe fitting 5 on the second pipe fitting shell 61, on whole casing 61 height, be formed with two groups of positioning hole groups 613.These two groups of positioning hole groups 613 comprise the positioning hole 6131 (referring to Figure 36) of a plurality of consistencies from top to bottom respectively.In addition, be formed with stop hole 614 (referring to Figure 15), shift out second pipe fitting 6 fully, hereinafter will describe in detail it to prevent the 3rd pipe fitting 7 in second pipe fitting, 6 shells, 61 bottoms.

Be formed with vertical penetration hole 721 at the carriage 72 of the 3rd pipe fitting 7 corresponding to the position of the first column transmission shaft 281, when leg is packed up, to pass (referring to Figure 21,22) for the first column transmission shaft 281.When the upper end of the 3rd pipe fitting 7 slid into second pipe fitting 6 terminal, the stop protrusion 791 of the stop block 79 of the 3rd pipe fitting 7 was incorporated in the stop hole 614 of second pipe fitting 6, thereby stops the 3rd pipe fitting 7 to skid off second pipe fitting 6.In addition, the lock cell 67 of the lock cell 77 of the 3rd pipe fitting 7 and 78 and second pipe fitting 6 and 68 forms interlaced arrangement.Thereby the work done gear 74 of the 3rd pipe fitting 7 turns clockwise, and (observing from upside) can to order about

lock cell

77 and 78 mobile towards carriage 72 in.Except that above difference, the structure of the 3rd pipe fitting 7 and second pipe fitting 6 are similar, so do not give unnecessary details at this.

Shown in Figure 15 and Figure 32-33, form first vertical penetration hole 821 at the carriage 82 of the 4th pipe fitting 8 corresponding to the position of the first column transmission shaft 281, pass with the confession first column transmission shaft 281 when leg is packed up; And form second vertical penetration hole 822 in its position corresponding to the second column transmission shaft 282, when leg is packed up, to pass (referring to Figure 24-25 and Figure 32) for the second column transmission shaft 282.The lock cell 87 of the 4th pipe fitting 8 and the lock cell 77 of the 88 and the 3rd pipe fitting 7 and 78 form interlaced arrangement.Thereby the work done gear 84 of the 4th pipe fitting 8 is rotated counterclockwise (observing from upside), and can to order about

lock cell

87 and 88 mobile towards carriage 82 in.In addition, if the 4th pipe fitting 8 is the terminal pipe fitting of leg, then this pipe fitting can not comprise driven gear and the column transmission shaft that fixedly installs with respect to this driven gear.Except that above difference, the structure of the 4th pipe fitting 8 and the 3rd pipe fitting 7 are similar, so do not give unnecessary details at this.

Describe the working method of the utility model tripod in detail below in conjunction with Figure 34-36.

When the handle 135 of actuating assembly 13 is in locked position shown in Figure 34, when just being in the "T"-shaped protruding right positions shown in Fig. 1, the guide pad 132 of actuating assembly 13 is in the equilibrium position in the guiding groove 127 of rotating disk 12, and makes rotating disk 12 be in its initial position under the effect of spring 122.At this moment, second gear 18 is meshed with the tooth bar 124 of rotating disk, so second gear 18 can't rotate freely.Because

second gear

18 and 19 engagements (referring to Fig. 5) of the 3rd gear, and the 3rd gear 19 is meshed with the tooth 243 of leg angle adjustment bar 24, thereby the 3rd gear 19 can't rotate, and leg angle adjustment bar 24 also can't rotate with respect to the 3rd gear 19, and an end is fixing thus is arranged at leg angle adjustment bar 24 on the leg and just can stops leg to rotate with respect to pedestal 1 and outwards open.

Meanwhile,, also keep static, rotate thereby its output shaft 20 and ratchet 26 can not order about the first column transmission shaft 281 of leg with first gear 17 of tooth 125 engagements of its side because that rotating disk 12 keeps is static.Thereby, the lock cell of second to the 4th pipe fitting of leg is in the initial position that stretches out corresponding shell, and its locating stud separately also is in the original state of the positioning hole that inserts a last pipe fitting, and the adjacent pipe fitting of each leg is in the lock state respectively thus, and can not stretch.

When the handle 135 of actuating assembly 13 is turned to unlocked position shown in Figure 35, when just being in the "T"-shaped protruding leftward position shown in Fig. 1, the guide pad 132 of actuating assembly 13 clockwise rotates (observing from upside) at the guiding groove 127 of rotating disk 12, and clockwise rotates together by spring 133 promotion rotating disks 12 simultaneously.Because the rotation of rotating disk 12, second gear 18 is separated with the tooth bar 124 of rotating disk, so second gear can rotate freely in the loop concave 123 of rotating disk 12 for 18 this moments.Because

second gear

18 and 19 engagements (referring to Fig. 5) of the 3rd gear, and the 3rd gear 19 is meshed with the tooth 243 of leg angle adjustment bar 24, such the 3rd gear also can rotate for 19 this moments, thereby leg angle adjustment bar 24 can order about second gear 18 and the 3rd gear 19 rotates.Thus, when rotating leg with respect to pedestal 1, an end is fixing is arranged at that leg angle adjustment bar 24 on the leg can drive second gear 18 and the 3rd gear 19 freely rotates, and is not subjected to any obstruction.Like this with regard to having made each leg 2 to rotate and launch several angle with respect to pedestal 1.

Meanwhile, because rotating disk 12 clockwise rotates, just rotate counterclockwise with first gear 17 of tooth 125 engagement of its side (in the pedestal to outer observation), thereby the output shaft 20 of first gear is rotated counterclockwise (observing from upside) via the first column transmission shaft 281 that first ratchet 26, second ratchet 27 and the second ratchet output shaft 28 order about leg 2.The first column transmission shaft 281 drives and be rotated counterclockwise by powershift gear 63, be rotated counterclockwise and be subjected to powershift gear 63 to drive work done gear 64 via spring 65, thereby work done gear 64 moves in carriage 62 by rack drives lock

cell

67 and 68, so that shift out in the positioning hole of the stop pin of lock cell from first pipe fitting 5, and between first pipe fitting 5 of leg and second pipe fitting 6, carry out release.

Meanwhile, be subjected to powershift gear 63 to order about driven gear 66 and turn clockwise (observing from upside), driven gear 66 drives the second column transmission shaft 282 and turns clockwise together.Similar with top running, the powershift gear 73 that is subjected to that the second column transmission shaft 282 drives the 3rd pipe fitting 7 turns clockwise, turn clockwise and be subjected to powershift gear 73 to drive work done gear 74 via spring 75, thereby work done gear 74 moves in carriage 72 by the rack drives lock

cell

77 and 78 of

lock cell

77 and 78, so that shift out in the positioning hole of the stop pin of the lock cell of the 3rd pipe fitting from second pipe fitting 6, and between second pipe fitting 6 of leg and the 3rd pipe fitting 7, carry out release.

And the like, also carry out release between the 3rd pipe fitting 7 of leg and the 4th pipe fitting 8.Thereby by the above-mentioned kind of drive, the locking between the adjacent pipe fitting of each leg is all removed, thereby each pipe fitting can be pulled out Len req in the pipe fitting from it.

After the length of adjusting each leg and its angle of launching with respect to pedestal, handle 135 can be rotated back into locked position, also be "T"-shaped protruding right positions shown in Figure 1, lock leg.When handle 135 is gone back to locked position, rotating disk 12 is rotated position shown in Figure 34 under the effect of spring 122, thereby second gear 18, the 3rd gear 19 and the leg angle adjustment bar 24 of each leg are locked again, and each leg is just locked with respect to the start point of pedestal thus.

In addition, go back in the process of position shown in Figure 34 at rotating disk 12, its first gear 17 that drives each leg clockwise rotates (in the pedestal to outer observation), thereby the column transmission shaft in each pipe fitting, rotated according to the direction opposite by powershift gear, work done gear, driven gear with unlocking operation, the lock cell that orders about each pipe fitting moves outside carriage separately, thereby the stop pin of each lock cell will be distinguished again in the positioning hole in the positioning hole group of inserting a last pipe fitting, to lock the adjacent pipe fitting of each leg again.

Thereby, behind the tensile elongation of adjusting each leg and start point, the utility model only needs handle 135 is rotated back into locked position, it also is the "T"-shaped protruding right positions shown in Fig. 1, just can all legs of genlocing, comprise the length that angle that each leg launches with respect to pedestal and each leg stretch.

Be at handle under the state of locked position, in order to finely tune the start point of each leg with respect to pedestal, can push the free end (referring to Fig. 5) of leg angle adjustment bar 24, overcome the elastic force of spring 242 and the tooth 243 of this adjustable lever and the 3rd gear 19 are separated, thereby can freely rotate leg 2 with respect to pedestal 1, and the restriction that not can not rotate by the second and the 3rd gear.

Equally, be at handle under the state of locked position, in order to finely tune the extrusion of each pipe fitting, can push its retaining piece of separating lock unit (referring to Figure 37-40), make traction rope drive activate the thrust of wedge opposing thrust spring and move down, thereby it is inner mobile towards carriage to promote lock cell by actuator block, thereby locating stud shifts out positioning hole, makes can remove this pipe fitting and the locking between the pipe fitting on it.

The pin screw assembly of each the leg end that is arranged at the utility model tripod is described below with reference to Figure 41-50.

Pin screw assembly 9 is arranged in the terminal pipe fitting of each leg, for example, in the 4th pipe fitting 8 of this example, and comprise the interior supporting frame 91 of the 4th pipe fitting that can be arranged at leg up or down, be arranged at the pin nail selected cell 92 of supporting frame underpart, be fixed in first pin nail 93 on the pin nail selected cell, follow closely 94 with the crus secunda that first pin nail relatively is fixed on the pin nail selected cell, one end is fixed on the supporting frame 91 and the other end is fixed in the draught spring 95 on the 4th pipe fitting, be arranged at air damping unit 96 and pin screw assembly location unit 97 between the 4th pipe fitting and the supporting frame.

The cavity 911 of the column transmission shaft insertion that supplies corresponding pipe fitting is opened and is formed with on supporting frame 91 tops.In addition, be formed with

passage

912 and 913 in cavity 911 inside, it inserts for the first column transmission shaft 281 and the second column transmission shaft 282 respectively.The size of each passage is a bit larger tham the size of corresponding column transmission shaft cross section, rotates freely therein and frees in and out for the column transmission shaft.Simultaneously, because the size that the size of each passage only is a bit larger tham column transmission shaft cross section, thereby accepted and during the traverse collection when tripod, in the corresponding column transmission shaft insertion passage and be subjected to the channel side wall support.Thus, can avoid column transmission shaft afterbody long-time unsettled and cause the transmission shaft bending.

First pin nail 93 and crus secunda nail 94 can be made by different materials respectively, to adapt to the requirement in different places.For example, first pin nail 93 can be made of plastics, to be applicable to the covered court; And crus secunda nail 94 can be made of metal, to be applicable to outdoor place.

As shown in figure 49, pin nail selected cell 92 comprises: bearing table 921, and it is arranged at supporting frame 91 underparts rotationally, and first pin nail 93 and crus secunda nail 94 are arranged at the two opposite sides of this bearing table 921 respectively; Selective pan 922, it is fixedly arranged at the middle position of bearing table 921 with respect to supporting frame 91, and is formed with two grooves 9221 and 9222 on its circumference symmetrically; And select shell fragment 923, it forms U-shaped, and is formed with projection 9231 and 9232 towards U-shaped inside at its two terminal position.Distance between the projection of this selection shell fragment 923 is slightly less than the diameter of selective pan 922.Select the intermediate portion of shell fragment 923 to be fixed in bearing table 921, its two projection 9231 and 9232 then is resisted against on the selective pan 922 along the diameter of selective pan 922.Thereby when carrying out the selection of pin nail when rotating this bearing table 921, two projectioies of selecting shell fragment 923 in the groove that slips into selective pan 922, realize the location to the pin nail just along the circumferential slippage of selective pan 922.When needs conversions pin nail, then only need bearing table 921 Rotate 180s ° are made and select two projectioies of shell fragment 923 to slip in the groove of relative selective pan, to realize the conversion of pin nail.

When needs conversion pin nail, then need the underpart of supporting frame 91 is pulled out the 4th pipe fitting 8 of leg, follow closely the bearing table 921 of selected cell to carry out the selection of pin nail and can rotate pin.After pin nail converts, the pulling force of draught spring 95 can with supporting frame 91 with and on the pin nail selected cell 92 that carried retract in the 4th pipe fitting, and only expose selecteed pin nail.

In order to prevent draught spring 95 from suddenly supporting frame 91 is retracted in the 4th pipe fitting 8 user is damaged, can between supporting frame 91 and the 4th pipe fitting 8, air damping unit 96 be set.Shown in Figure 46 and 47, this air damping unit comprises: vertical first cylinder 961 that is provided with; Crosswise fixed is in second cylinder 962 terminal at first cylinder and that be communicated with first cylinder; Be arranged at piston 963 in first cylinder and the piston rod 964 that is connected in piston movably.Be formed with inlet hole 9621 in this second cylinder sidewall; Diaphragm 9622 is arranged on the position of cylinder inner wall corresponding to inlet hole 9621, to cover this inlet hole.This diaphragm 9622 is being fixed away from one side of first cylinder, and other edge freedom.In addition, also be formed with air outlet hole 9623 in the cylinder wall of second cylinder, the size of this air outlet hole 9623 is much smaller than the size of inlet hole 9621.Thereby when piston 963 is subjected to piston rod 964 traction and during away from second cylinder, air mainly enters in first, second cylinder via inlet hole 9621, thereby piston 963 can slide fast.Yet, when piston 963 is promoted by piston rod 964 and during near second cylinder, air in first, second cylinder needs to discharge, yet the air that needs to discharge is pressed against diaphragm 9622 on the inlet hole 9621, make air to discharge, and can only discharge via small-sized air outlet hole 9623 through inlet hole 9621.Like this, piston 963 can only slide slowly near receiving bigger resistance of air in the moving of second cylinder.

First cylinder of this air damping unit and second cylinder are at the supporting frame of the 4th pipe fitting internal fixation in the 4th pipe fitting or pin screw assembly, and its piston rod then relatively is fixed in supporting frame or the 4th pipe fitting.Thereby because the above-mentioned working method of this air damping unit, when supporting frame was pulled out the 4th pipe fitting 8, piston can fast moving, thereby can fast supporting frame 91 be pulled out.Yet, when draught spring 95 retracts supporting frame 91 in the 4th pipe fitting 8,, cause supporting frame 91 also can only slowly move in the 4th pipe fitting 8, thereby play the effect of safety protection because piston is subjected to the resistance of air effect and can only slowly moves.

In addition, pull out outside the 4th pipe fitting 8 when carrying out the conversion of pin nail pin being followed closely selected cell 92, prevent that for the pulling force that overcomes draught spring 95 supporting frame 91 and pin nail selected cell 92 from being retracted in the 4th pipe fitting automatically, pin screw assembly location unit 97 can be set in the 4th pipe fitting 8.The spring 973 that this pin screw assembly location unit 97 comprises positioning rod 971, is formed at supporting frame upper curve groove 972 and is used for positioning rod 971 1 ends are pressed against curvilinear groove 972.One end of this positioning rod 971 is arranged on the 4th pipe fitting 8, and the other end is incorporated in the curvilinear groove 972 slidably.This curvilinear groove 972 constitutes centroid groove (referring to Figure 48 A), it comprises that the curved section 9721,9722,9723 and 9724 that connects successively constitutes, wherein the groove depth at each line segment intersection place is greater than the degree of depth of each line segment self, and the section start degree of depth of a back curved section is slightly larger than the destination county degree of depth of last curved section, thereby wrong curved section or slip back can not gone in the end that can guarantee positioning rod 971.In addition, curved section 9721 can be formed with not the free terminal 9720 that intersects with other curved sections.When supporting frame 91 and pin nail selected cell 92 was in the 4th pipe fitting 8, the sliding end of positioning rod 971 was in the free terminal 9720 of curved section 9721.When supporting frame 91 was pulled out the 4th pipe fitting, the sliding end of positioning rod upwards slided along curved section 9721.When supporting frame 91 was completely pulled out of, this sliding end slid into first intersection between curved section 9721 and 9722.When discharging this supporting frame 91, owing to be subjected to the traction of draught spring 95, return in the 4th pipe fitting 8 of leg supporting frame 91 parts, thereby the sliding end of positioning rod 971 slides into second intersection between curved section 9722 and the curved section 9723 along curved section 9722, and, prevent that supporting frame 91 from further returning in the 4th pipe fitting 8 herein in steady state.When needing supporting frame 91 and pin nail selected cell 92 to return in the 4th pipe fitting 8 when finishing the pin nail to select, need outwards to spur earlier supporting frame 91, make the sliding end of positioning rod 971 leave second intersection, and reach third phase friendship place between curved section 9723 and the curved section 9724, and cross third phase friendship place and enter in the curved section 9724 along curved section 9723.At this moment, loosen supporting frame 91, then whole supporting frame 91 and pin nail selected cell 92 are return under the traction of draught spring 95 in the 4th pipe fitting 8.Simultaneously, the sliding end of positioning rod 971 slides along curved section 9724, and enters in the curved section 9721, slides into the free terminal 9720 of curved section 9721 at last always, thereby supporting frame 91 and pin nail selected cell 92 just stably return in the 4th pipe fitting 8.

In addition, at the end of the 4th pipe fitting 8 bottom 98 can be set, to seal the 4th pipe fitting 8 ends not by pin screw assembly 9 enclosed areas.In this bottom 98 passage 981 can be set, its structure is identical with

passage

912 and 913 with effect, and is in order to admitting and to carry other column transmission shafts, long-time unsettled and cause the transmission shaft bending to avoid these column transmission shaft afterbodys.Can be formed with the pod apertures 982 that runs through bottom 98 in bottom 98 bottoms, so that discharge water or impurity in each leg.

Although described various embodiment of the present invention above in detail, to those skilled in the art, can make further changes and improvements to the present invention.Should be appreciated that such changes and improvements within the spirit and scope of the present invention.

Claims

1. a tripod is characterized in that, this tripod comprises: pedestal; Three legs that are pivotally installed in this pedestal periphery, each leg comprise first pipe fitting and second pipe fitting, and this second pipe fitting telescopically is set in this first pipe fitting; Be arranged at first pipe fitting of each leg and first locking framework between second pipe fitting, it locks this second pipe fitting to stop this second pipe fitting with respect to this first pipe fitting telescopic moving with respect to this first pipe fitting; Three groups of Transmitted chainss are coupled to each leg and with corresponding first locking framework from this base extension respectively, to drive corresponding first locking framework second pipe fitting are locked or release; And actuating mechanism, be arranged at these three groups of Transmitted chainss that also are coupled synchronously in this pedestal so that it is activated.

2. tripod as claimed in claim 1 is characterized in that, this pedestal comprises Base body and the pedestal enclosing cover that is fastened on the Base body; This Base body comprises that upper surface is formed with the end basin of depression, turns up the soil from the outward extending support of this end basin sidewall from this end basin upwardly extending column of central authorities and three groups of each intervals; This pedestal enclosing cover is formed with center hole, to be set on this column; Wherein, this tripod also comprises three groups of leg links, and each leg link is fixedly connected on first tubular top of each leg and comprises the surperficial from it connecting sheet that extends straight up, and this connecting sheet is pivotally connected to the respective holder on this pedestal.

3. tripod as claimed in claim 2, it is characterized in that this actuating mechanism comprises: rotating disk, it is formed with center hole, be received in rotationally in this end basin depression to be set on this column and, and on this rotating disk side, be formed around its circumference a plurality of teeth around this column; And actuating assembly, this actuating assembly comprises: base plate, and it is formed with center hole, being set on this column, and is incorporated into this rotating disk in the mode of actuatable this rotating disk; Pillar, it extends upward from this plate upper surface; And handle, it is incorporated into this pillar top pivotally and its outer end extends to outside this pedestal enclosing cover; Wherein, be formed with the opening that stretches out for this handle outer end in this pedestal enclosing cover sidewall and be formed with "T"-shaped projection in this opening, this handle can move by side to opposite side from one of this "T"-shaped projection.

4. tripod as claimed in claim 3 is characterized in that, this first pipe fitting comprises the tube-like envelope that upper and lower end is open; This second pipe fitting comprises that upper and lower end is open and has with the tube-like envelope of this first pipe fitting shell same cross-sectional shape and be incorporated into this second pipe fitting shell top and comprise the carriage of the upper and lower supporting plate that is spaced apart from each other.

5. tripod as claimed in claim 4 is characterized in that, this first locking framework comprises: be formed at the first positioning hole group on this first pipe fitting outer casing inner wall along this first pipe fitting length direction, it comprises first positioning hole of a plurality of consistencies from top to bottom; And be arranged at first lock cell in this second pipe fitting carriage orthogonally with this first positioning hole group, and it comprises first substrate, an end of this first positioning hole group of the vicinity of this first substrate is formed with at least one first locating stud; Wherein this second pipe fitting shell is formed with opening corresponding to the position of this first locating stud, stretches out or withdraws this second pipe fitting carriage and insert or withdraw from this first positioning hole for this first locating stud.

6. tripod as claimed in claim 5 is characterized in that, each Transmitted chains comprises: first gear, be arranged to be meshed with the tooth of this rotating disk side; The first column transmission shaft, the output shaft that it is coupled in this first gear passes corresponding leg link and extends in the respective leg, and can run through the corresponding second pipe fitting carriage with rotating freely; And first be subjected to the powershift gear and the first work done gear, it is held between the upper and lower supporting plate of the corresponding second pipe fitting carriage up and down stackedly, and be provided with first stiff spring between the two, this first stiff spring, one end is fixed in this and first is subjected to powershift gear, and the other end is fixed in this first work done gear; Wherein, this first mode that do not turned can vertically move with respect to this first column transmission shaft by powershift gear is set on this first column transmission shaft, and this first work done gear is set on this first column transmission shaft in the mode that can vertically move and rotate with respect to this first column transmission shaft; The part in the face of this first work done gear of this first lock cell, first substrate is formed with first tooth bar that is meshed with this first work done gear.

7. tripod as claimed in claim 6 is characterized in that, this first stressed gear is formed with the center hole that cross section is a rectangle, and it is sized to be a bit larger tham the cross-sectional dimension of this first column transmission shaft.

8. tripod as claimed in claim 6 is characterized in that, this end basin also comprises the annular positioning groove in this column is formed at this depression, the stopping projection a pair of respect to one another that forms in this locating slot; This rotating disk comprises a pair of positioning block that is formed at its bottom surface relative to one another, and this positioning block is located in this locating slot; Wherein this to one of stopping projection and this to being provided with spring between one of positioning block, to be tending towards that this positioning block is pushed against this on another of stopping projection.

9. tripod as claimed in claim 8 is characterized in that the upper surface of this rotating disk is formed with counterbore, to admit the base plate of this actuating assembly; This rotating disk also comprises the semicircle guiding groove that is formed at around its hole, center in this counterbore; This actuating assembly also comprises the guide pad that extends from this base plate bottom surface downwards, this guide pad is located in this guiding groove, and a pair of spring is set in this guiding groove, each both ends of the spring is resisted against respectively on an end of this guiding groove and this guide pad, to be tending towards making this actuating assembly base plate equilibrium position that mediates.

10. tripod as claimed in claim 6 is characterized in that, this pedestal also comprises and is held between this Base body and the pedestal enclosing cover and is fastened on pedestal inner cap on this actuating assembly base plate; This pedestal inner cap is formed with center hole, to be set on this column and this pillar; This pedestal inner cap bottom periphery is formed with the ring-type receiving channel, to hold this first gear.

11. tripod as claimed in claim 10, it is characterized in that, this tripod also comprises and being arranged between this pedestal enclosing cover and the pedestal inner cap and from being pressed against the dustproof loam cake on this handle, and this dustproof loam cake comprises the opening that passes for this column and for the pivot of this dustproof loam cake around its pivot; Cover in this pedestal enclosing cover and the pedestal and be respectively arranged with the upper and lower supporting element that fastens each other, to support this pivot; Wherein, should also be included in the support plate that extends from this pivot on the direction that deviates from this dustproof upward cover gab by dustproof loam cake, be provided with spring between this support plate and this lower support element, this spring is tending towards upwards promoting this support plate, and loam cake was pressed against on this handle preventing dust.

12. tripod as claimed in claim 10, it is characterized in that, this tripod also comprises the dustproof side plate of a pair of arc that is provided with around this pedestal enclosing cover inwall, and this dustproof side plate is arranged at this handle both sides respectively, and is located in the annular groove that hd top face forms in this pedestal slidably; Wherein, each dustproof side plate is respectively by spring traction, and sidepiece and this pedestal away from this handle that the two ends of each spring are individually fixed in corresponding dustproof side plate cover outward, this dustproof side plate is pressed against on this handle from these handle both sides respectively being tending towards.

13. tripod as claimed in claim 10 is characterized in that, the output shaft of each first gear extends to outside this pedestal, and is meshed with this first column transmission shaft by a pair of ratchet.

14. tripod as claimed in claim 13 is characterized in that, this is six pawl pawls to ratchet.

15. tripod as claimed in claim 13; it is characterized in that; this pedestal sidepiece is formed with safety cover on the semicircle tubular corresponding to the position of this first gear output shaft; each leg link is provided with safety cover under the semicircle tubular that is set in the safety cover on this, and this is positioned at the protection chamber that this upper and lower safety cover forms to ratchet.

16. tripod as claimed in claim 6 is characterized in that, this first pipe fitting shell also comprises the chock that is formed at its inwall bottom; This second pipe fitting also comprises first stop block and first thrust spring that is arranged in this second pipe fitting carriage; This first stop block, one end is pivotally installed in this second pipe fitting carriage and comprises first stop protrusion of extending and aliging with this chock outside this second pipe fitting carriage; This first thrust spring, one end is resisted against on this second pipe fitting carriage, and the other end is resisted against on this first stop block, to be tending towards that this first stop protrusion is released the opening that is formed at corresponding to this first stop protrusion in this second pipe fitting shell.

17. tripod as claimed in claim 6, it is characterized in that, each leg of this tripod comprises that also being used for respect to this first pipe fitting this second pipe fitting being carried out first of release separates lock unit, and this first release unit comprises: first traction unit that is arranged on this second pipe fitting outer casing underpart; On this first lock cell, first substrate, be arranged at first actuator block between this first tooth bar and first locating stud; Moving up and downly be arranged in this second pipe fitting carriage first and activate wedge near this first actuator block; First thrust spring, its two ends are resisted against respectively on this second pipe fitting carriage and this first actuating wedge, to be tending towards that this first actuating wedge is pushed away this first actuator block; And first traction rope, the one end is fixed in this and first activates wedge, and the other end passes this second pipe fitting shell and be fixed in this first traction unit.

18. tripod as claimed in claim 17 is characterized in that, this first traction unit comprises: first framework that is fixed in this second pipe fitting outer surface of outer cover; Be arranged at first pivoted arm on this first framework pivotly; Be incorporated into free-ended first retaining piece of this first pivoted arm; Wherein, this first traction rope is fixed on this first retaining piece at this first traction unit place.

19. tripod as claimed in claim 3 is characterized in that, this tripod also comprises: axis, its run through vertically this pedestal and relatively this pedestal move up and down; And the Central axis locking device, it is set on this axis and locks this axis with relative this pedestal.

20. tripod as claimed in claim 19 is characterized in that, this column is formed with center hole; This Intermediate shaft sleeve is loaded in the center hole of this column, and its upper end is provided with the object table that is used to carry photographic goods or other instruments.

21. tripod as claimed in claim 20 is characterized in that, these object table end face central authorities are provided with threaded stem, and connecting these photographic goods or other instruments, and this axis bottom is provided with the counterweight hook that is used to hang counterweight.

22. tripod as claimed in claim 20, it is characterized in that this Central axis locking device comprises lock main body and ring wedge, this lock main body has the female center hole of formation on its inwall, wherein, the aperture, upper end in this lock main center hole is less than the aperture, lower end; This column outer surface of upper is formed with outside thread, to mesh with this internal thread; This ring wedge is arranged between this column and this axis in this lock main center hole.

23. tripod as claimed in claim 6, it is characterized in that, each leg also comprises at least one the 3rd pipe fitting, described at least one the 3rd pipe fitting telescopically each other is sleeved on also whole together telescopically and is set in this second pipe fitting, and each described at least one the 3rd pipe fitting comprises that upper and lower end is open and has with the tube-like envelope of this second pipe fitting shell same cross-sectional shape and be incorporated into described at least one the 3rd pipe fitting shell top and comprise the carriage of the upper and lower supporting plate that is spaced apart from each other.

24. tripod as claimed in claim 23, it is characterized in that, be provided with second locking framework between the adjacent pipe fitting in this second pipe fitting and described at least one the 3rd pipe fitting, it is in inner pipe fitting with respect to the pipe fitting locking that is in the outside in the described adjacent pipe fitting and is in outside pipe fitting telescopic moving to stop this to be in inner pipe fitting with respect to this; This second locking framework comprises: the second positioning hole group, it is formed on the inwall of the shell that is in outside pipe fitting in the described adjacent pipe fitting along this leg length direction, and comprise second positioning hole of a plurality of consistencies from top to bottom, the wherein two positioning hole groups setting interlaced with each other of direct neighbor in this first positioning hole group and the second positioning hole group; And second lock cell, itself and this second positioning hole group is arranged in the carriage that is in inner pipe fitting in the described adjacent pipe fitting orthogonally, and comprises second substrate, and an end of this second positioning hole group of the vicinity of this second substrate is formed with at least one second locating stud; The shell that wherein is in outside pipe fitting in this described adjacent pipe fitting is formed with opening corresponding to the position of this second locating stud, for this second locating stud stretch out or its residing carriage of withdrawing in and insert or withdraw from this second positioning hole.

25. tripod as claimed in claim 24, it is characterized in that, each Transmitted chains also comprises: at least one group second is subjected to the powershift gear and the second work done gear, each is organized second and is subjected to the powershift gear and the second work done gear to be held between the upper and lower supporting plate of carriage that is in inner pipe fitting in the described adjacent pipe fitting up and down respectively stackedly, and be provided with second stiff spring between the two, this second stiff spring, one end is fixed in this and second is subjected to powershift gear, and the other end is fixed in this second work done gear; At least one driven gear, each driven gear are held on respectively between the upper and lower supporting plate of carriage that is in outside pipe fitting in the described adjacent pipe fitting, and are subjected to powershift gear or second be meshed by powershift gear with corresponding first; At least one second column transmission shaft, each second column transmission shaft are connected in respectively to be in the driven gear in the outside pipe fitting in the described adjacent pipe fitting and to be arranged at second in the pipe fitting that is in inside in the described adjacent pipe fitting and are subjected to the powershift gear and the second work done gear; Wherein, this driven gear is set on this second column transmission shaft in the mode that can not vertically move with respect to the corresponding second column transmission shaft and do not turn; This second mode that do not turned can vertically move with respect to the corresponding second column transmission shaft by powershift gear is set on this second column transmission shaft, and this work done gear is set on this first column transmission shaft in the mode that can vertically move and rotate with respect to the corresponding second column transmission shaft; Wherein, the part in the face of the corresponding second work done gear of second substrate of this second lock cell is formed with second tooth bar that is meshed with the corresponding second work done gear; And wherein, be in the described adjacent pipe fitting in the carriage of inner pipe fitting and be formed with the penetration hole that aligns with this first column transmission shaft and described at least one second column transmission shaft, insert for this first column transmission shaft and described at least one second column transmission shaft.

26. tripod as claimed in claim 25 is characterized in that, the shell that is in outside pipe fitting in the described adjacent pipe fitting also comprises the stop hole that is formed in its sidewall bottom; Be in inner pipe fitting in the described adjacent pipe fitting and also comprise second stop block and second thrust spring that is arranged in its carriage; This second stop block, one end is pivotally installed in the carriage that is in inner pipe fitting in the described adjacent pipe fitting and comprises second stop protrusion of extending and aliging with this stop hole outside the carriage that is in inner pipe fitting in described adjacent pipe fitting; This second thrust spring, one end is resisted against on the carriage that is in inner pipe fitting in the described adjacent pipe fitting, and the other end is resisted against on this second stop block, to be tending towards that this second stop protrusion is released the opening that is formed at corresponding to this second stop protrusion in the shell that is in inner pipe fitting in the described adjacent pipe fitting.

27. tripod as claimed in claim 25, it is characterized in that, each leg of this tripod comprises that also being used for being in outside pipe fitting with respect to described adjacent pipe fitting carries out second of release and separate lock unit being in inner pipe fitting in the described adjacent pipe fitting, and this second release unit comprises: be arranged on second traction unit that is in inner pipe fitting outer casing underpart in the described adjacent pipe fitting; On this second lock cell, second substrate, be arranged at second actuator block between second tooth bar and second locating stud; Moving up and downly be arranged in the carriage that is in inner pipe fitting in the described adjacent pipe fitting second and activate wedge near this second actuator block; Second thrust spring, its two ends are resisted against respectively on the carriage and this second actuating wedge that is in inner pipe fitting in the described adjacent pipe fitting, to be tending towards that this second actuating wedge is pushed away this second actuator block; And second traction rope, the one end is fixed in this and second activates wedge, and the other end passes and is in inner pipe fitting shell in the described adjacent pipe fitting and is fixed in this second traction unit.

28. tripod as claimed in claim 27 is characterized in that, this second traction unit comprises: be fixed in second framework that is in inner pipe fitting outer surface of outer cover in the described adjacent pipe fitting; Be arranged at second pivoted arm on this second framework pivotly; Be incorporated into free-ended second retaining piece of this second pivoted arm; Wherein, this second traction rope is fixed on this second retaining piece at this second traction unit place.

29. as each described tripod among the claim 3-28, it is characterized in that, this tripod also comprises three groups of leg angle regulating unit, it is arranged at respectively between this pedestal and each the leg link, pivots with respect to this pedestal to stop respective leg with respect to this pedestal selective lock respective leg; These three groups of leg angle regulating unit are coupled in this actuating assembly, with under activating at this actuating assembly with respect to this pedestal release respective leg.

30. tripod as claimed in claim 29 is characterized in that, each pack support comprises two isolated cantilevers respectively; The sidewall on this chassis is formed with opening in each support restricted portion; This disk lower surface outside is formed with annular concave surface, is formed with the tooth bar of three sections each intervals on the position corresponding to this chassis side wall opening on this concave surface; Wherein, each leg angle regulating unit comprises: second gear, and it rotatably is arranged between the cantilever of respective holder and via corresponding chassis side wall opening and is meshed with the respective rack of this rotating disk; The 3rd gear, it is meshed between the cantilever that rotatably is arranged at this support outside this second gear and with this second gear; And leg angle adjustment bar, its end near the leg inboard is pivotally connected on the respective leg link, and its end near an outside of foot is a free end; Its position towards the 3rd gear is formed with a plurality of teeth, to be meshed with the 3rd gear; And it is supported by spring towards respective leg link position, the tooth of this leg angle adjustment bar is pushed against on the 3rd gear being tending towards.

31. tripod as claimed in claim 30 is characterized in that, this tripod also comprises the pin screw assembly that is arranged at each leg end respectively, and each pin screw assembly comprises: supporting frame; Be arranged at the pin nail selected cell of this supporting frame underpart; Be fixed in first pin nail and crus secunda nail on this pin nail selected cell relative to one another; One end is fixed on this supporting frame and the other end is fixed in the draught spring on this leg; Be arranged at air damping unit and pin screw assembly location unit between this supporting frame and this leg.

32. tripod as claimed in claim 31 is characterized in that, this first pin nail and crus secunda nail are made by different materials respectively.

33. tripod as claimed in claim 32 is characterized in that, this pin nail selected cell comprises: bearing table, and it rotatably is arranged under this supporting frame, and carries this first pin nail and crus secunda nail in its two opposite sides portion; Selective pan, it is fixedly arranged at the middle position of this bearing table with respect to this supporting frame, and is formed with two grooves symmetrically along its diameter on its circumference; And selection shell fragment, it forms U-shaped and is formed with projection towards U-shaped inside at its two terminal position, wherein the distance between the projection of this selection shell fragment is slightly less than the diameter of this selective pan, and this bearing table is fixed in the intermediate portion of this selection shell fragment, and its two projection is resisted against on the circumference of this selective pan.

34. tripod as claimed in claim 33 is characterized in that, this air damping unit comprises: along first cylinder of each leg length direction setting; Crosswise fixed and second cylinder that with this first cylinder be communicated with terminal in this first cylinder is formed with inlet hole and air outlet hole in this second cylinder sidewall, and the size of this air outlet hole is much smaller than the size of this inlet hole; Be mounted slidably the piston in this first cylinder; Be connected in the piston rod of this piston; And diaphragm, it is covered on this inlet hole on this second cylinder inner wall, one side this diaphragm away from the fixing of this first cylinder, and other edge freedom of this diaphragm; Wherein, this first cylinder is fixed on one of this leg and this supporting frame, and this piston rod is connected in this leg and the supporting frame another.

35. tripod as claimed in claim 34 is characterized in that, the spring that this pin screw assembly location unit comprises positioning rod, is formed at this supporting frame upper curve groove and is used for this positioning rod one end is pressed against this curvilinear groove; Wherein an end of this positioning rod is arranged on this supporting frame, and the other end is incorporated in the curvilinear groove slidably; The centroid groove of this curvilinear groove for being made of a plurality of curved sections, the degree of depth of each adjacent curve section intersection is slightly larger than the degree of depth of curved section self, and the section start degree of depth of a back curved section is slightly larger than the destination county degree of depth of last curved section.

36. tripod as claimed in claim 31, it is characterized in that, this supporting frame top opening also is formed with the cavity that supplies the described first column transmission shaft and/or the second column transmission shaft to insert, this inside cavity is formed with a plurality of first passages, described first passage inserts for the described first column transmission shaft and/or the second column transmission shaft respectively, wherein said first passage is sized to be a bit larger tham in the following manner the size of the described first column transmission shaft and/or the second column transmission shaft cross section, be that the described first column transmission shaft and/or the second column transmission shaft can rotate freely and free in and out in corresponding first passage respectively, and accepted and traverse when collection when this tripod, the described first column transmission shaft and/or the second column transmission shaft insert in the corresponding first passage and are subjected to the sidewall support of this first passage.

37. tripod as claimed in claim 36, it is characterized in that, be not provided with bottom at each support end by this pin screw assembly enclosed areas, a plurality of second channels are set in this bottom, described second channel inserts for other column transmission shafts that do not insert described first passage in the described first column transmission shaft and/or the second column transmission shaft respectively, wherein said second channel is sized to be a bit larger tham in the following manner the size of described other column transmission shaft cross sections, be that described other column transmission shafts can rotate freely and free in and out in corresponding second channel respectively, and accepted and traverse when collection when this tripod, described other column transmission shafts insert in the corresponding second channel and are subjected to the sidewall support of this second channel.