A kind of quick-expansion support device for photography and advertising sector
Technical field
The present invention relates to telescopic support device, specifically a kind ofly be mainly used in photographing and the quick-expansion support device of advertising sector.
Background technique
In photography; we often can see to support the supporting frame of main equipment the industries such as advertisement; such as telescopic tripod; microphone holder; the perhaps more seemingly mutation of shrinking structure of multiclass; but structural principle is nested successively nothing more than three pipes; then the flexible form of pull; certainly the support that has Telescopic has a variety of; shrinking structure like the retractable door; what but we will say now is the telescopic support device that is mainly used in photography and the advertising sector; in the industry; satisfy slim and graceful; portable; volume is little after the contracting; firm stable; wear-resisting; the anti-characteristics such as fall; so the shrinking structure that three pipes are nested successively is first-selected; satisfy the thing that These characteristics neither be difficult to, but the support device of this class formation rests on still in the flexible step by step technology, when adjusting equipment at present; will spend the more time, so how to allow more quickly and effectively flexible of telescopic support device be the problem that next we will solve.
In the prior art, know application number: 200920265625.5, the applying date: 2009-12-25, publication number: 201731245U, open day: but the Chinese patent of 2011-02-02 discloses a kind of tripod of portable quick-expansion, formed by telescopic main post and three telescopic supporting foots, be provided with internal-expansion type ball-shaped cloud platform and the rapid pipe joint of internal-expansion type camera at mobile jib; The upper end of three supporting foots is connected to a collar slidably on the connecting base of inner conical switch type, and this connecting base can slide at the pipe of mobile jib lower end; All be provided with positioning hole and elastic positioning pin on all flexible rods; On three supporting foots, also be respectively equipped with slidably inner conical switch of a collar; On tripod, also connect a package bag or packing box; In use, open compact is taken out tripod, pulls out respectively mobile jib and three supporting foots, and elastic positioning pin is located automatically, decontrols hand after pinching internal-expansion type camera rapid pipe joint alignment cameras fixing threaded hole, then can be fast fixing camera; By pinching internal-expansion type ball-shaped cloud platform capable of regulating camera shooting angle; In the time will packing up tripod, but by pinching camera under the rapid pipe joint fast fetching, press elastic positioning pin, but the fast retractile flexible rod.
Above open source literature, be known as and return fast flexible rod, but in fact do not reach required purpose, only provided the locking device between the tube and tube, can operate fast, make pipe flexible step by step, so still there is not to solve the step by step flexible slow defective of stretching speed of bringing, on this basis, be under the static state if also need to develop a kind of middle pipe, the support device that outer tube and inner tube are stretched simultaneously, so flexible efficient directly promotes twice.
In view of this, for the problems referred to above, propose a kind of reasonable in design and effectively improve the quick-expansion support device that is used for photography and advertising sector of above-mentioned disappearance.
Summary of the invention
The object of the present invention is to provide a kind of quick-expansion support device for photography and advertising sector, solved the defective that present support device stretching speed is slow, use inconvenience, the present invention has realized the function that two pipes stretch simultaneously and bounce back with respect to the 3rd pipe, so that stretching speed has directly improved twice, allow people save the time, it is more convenient to use.
In order to reach above-mentioned purpose, the present invention has adopted following technological scheme, a kind of quick-expansion support device for photography and advertising sector, comprise the inner tube, middle pipe, the outer tube that are nested together successively and can mutually stretch, a driving belt is passed at described middle pipe top, then a driving belt wherein end is fixed on the outer tube underpart between outer tube and middle pipe, then the other end is fixed on the inner tube upper end portion between middle pipe and inner tube, described outer tube and inner tube form the state that is connected by driving belt with respect to middle pipe; Be provided with pipe and inner tube and then the interior locking device of three pipes at home and abroad of locking in the locking on the described middle pipe; Described middle pipe comprises middle tube body, is fixed on the pulley gear of middle tube body upper end by Fixed latches, and described driving belt is around on the pulley gear.
Described pulley gear comprise by retaining screw mutually snap together about two shells, two enclosure behind the fastening are provided with the pulley that is enclosed within on the pulley spindle, be positioned at pulley circumference bi-side about offer respectively half round platform breach and strip hole on two shells, after described driving belt is around on the pulley wherein an end pass strip hole and be fixed on the outer tube underpart, the other end then passes the upper end portion that half round platform breach is fixed on inner tube.
Described outer tube comprises outer tube body, outer tube driving belt fixed block, described inner tube comprises interior tube body, inner tube driving belt fixed block, a described driving belt wherein end is fixed on outer tube body underpart by outer tube driving belt fixed block, and the described driving belt the other end is fixed on interior tube body upper end portion by inner tube driving belt fixed block.
The described outer tube body end outside that is fixed with driving belt is arranged with cap bag, and described interior tube body underpart button is provided with rubber pad.
Two relative socket caps are set on the described outer tube driving belt fixed block and insert in the circular hole of offering on the outer tube body by two socket caps and be fixed on the outer tube body interior, described driving belt end also perforate is fixed on two socket caps of outer tube driving belt fixed block between tube body and the middle tube body outside; Described inner tube driving belt fixed block is arranged on interior tube body upper end by Fixed latches, and the driving belt end is fixed on boss one side that inner tube driving belt fixed block offers by retaining screw.
Be provided with the rotation prevention structure that prevents the two rotation between described outer tube body and the middle tube body, this rotation prevention structure is the longitudinal fluting that vertical fin that the middle tube body outer wall that connects arranges and outer tube inner body wall arrange that cooperatively interacts.
Described middle tube body inside is provided with two relative longitudinally gear ribs, forms the gear rib groove that is used for leading with the positioning transmission band between two gear ribs and the middle tube body inwall; Boss one side that described inner tube driving belt fixed block is offered is fastened on the rotation that is used in the gear rib groove forbidding between middle tube body and the interior tube body.
Described driving belt is metal driving belt or plastics driving belt or rubber transmission belting.
Described locking device is screw-threaded coupling device, and described screw-threaded coupling device comprises that the outside screws body and interior tapered locking body, and the outside screws body and is threaded connection on middle pipe, and it is peripheral that the interior tapered locking body is enclosed within the inner tube peripheral wall.
Described locking device is the spring button locking device, described spring button locking device comprises the button cover that is fixed on the middle pipe, is hinged on the peg button that button puts at the middle part by the button fixing pin, this peg button wherein is provided with the return button spring between a bottom face and the button cover, the other end is provided with the socket cap of location usefulness, is provided with a plurality of and described socket cap fixing positioning hole that matches on the described inner tube.
Described locking device is the spring button locking device, described spring button locking device comprises the button cover that is fixed on the middle pipe, is hinged on the peg button that button puts at the middle part by the button fixing pin, this peg button wherein is provided with the return button spring between a bottom face and the button cover, the other end is provided with the dentation structure of location usefulness, is provided with the longitudinally tooth bar that matches and fix with described dentation structure on the described inner tube.
Described tooth bar is the dentation fixed strip of inlaying on inner pipe, offers on inner pipe embedding groove, and the dentation fixed strip is installed in the groove.
Compared to prior art, the present invention has following beneficial effect, the present invention is with respect to middle tube body, connect between the upper end of the bottom of tube body and interior tube body outside and have the simultaneously driving belt of linkage, driving belt is around on the pulley of middle tube body upper end, more light and smooth when flexible, increase ease for use, driving belt all by special driving belt fixed block, makes connection more reliable when connecting inner and outer pipes, is convenient to assembling, driving belt drives the inner and outer pipes realization simultaneous retractable motor function that two ends connect, flexible efficient of the present invention is improved greatly, and stretching speed is higher than 2 times of prior art, and reliable stable.Be provided with rotation prevention structure between three pipes, and be provided with the gear rib groove of driving belt location and guiding usefulness, make that driving belt is in service can not to break down.In addition, locking device has adopted various ways, for the present invention, provides three kinds of modes, but is not limited to this three kinds of modes, all has characteristics separately, and people can carry out different selections according to actual conditions.
Description of drawings
Fig. 1 is a kind of the first embodiment's for photography and the quick-expansion support device of advertising sector of the present invention structure general assembly schematic diagram;
Fig. 2 is a kind of the first embodiment's for photography and the quick-expansion support device of advertising sector of the present invention STRUCTURE DECOMPOSITION schematic diagram;
Fig. 3 is the STRUCTURE DECOMPOSITION figure of Fig. 2 middle external tube;
Fig. 4 is the cross-sectional view of Fig. 3;
Fig. 5 is the section of structure of Fig. 2 middle external tube;
Fig. 6 is outer tube driving belt fixed block and the cap bag cross-sectional view when being installed in the outer tube end;
Fig. 7 is outer tube driving belt fixed block and the cap bag sectional block diagram when being installed in the outer tube end;
Fig. 8 is the sectional drawing of cap bag;
Fig. 9 is the STRUCTURE DECOMPOSITION figure of the middle pipe among Fig. 2;
Figure 10 is the cross-sectional view of Fig. 9;
Figure 11 is the STRUCTURE DECOMPOSITION figure of pulley gear;
Figure 12 is that driving belt is at the structure enlarged diagram of middle pipe interior trough;
Figure 13 is the section of structure of the middle pipe among Fig. 2;
Figure 14 is the STRUCTURE DECOMPOSITION figure of the inner tube among Fig. 2;
Figure 15 is the section of structure of the inner tube among Fig. 2;
Figure 16 is inner tube driving belt fixed block sectional view;
Figure 17 is the sectional view after inner tube driving belt fixed block and middle pipe are nested;
Figure 18 is the stereogram after inner tube driving belt fixed block and driving belt fix;
Figure 19 is the section of structure after a kind of the first embodiment's contracting for photography and the quick-expansion support device of advertising sector of the present invention is closed;
Figure 20 is the section of structure after a kind of the first embodiment for photography and the quick-expansion support device of advertising sector of the present invention stretches;
Figure 21 is the part-structure sectional drawing that a kind of the first embodiment for photography and the quick-expansion support device of advertising sector of the present invention is stretched to limit position;
Figure 22 is that a kind of the first embodiment for photography and the quick-expansion support device of advertising sector of the present invention is applied in the application drawing on the photographic tripod;
Figure 23 is a kind of the second embodiment's for photography and the quick-expansion support device of advertising sector of the present invention structure general assembly schematic diagram;
Figure 24 is a kind of the second embodiment's for photography and the quick-expansion support device of advertising sector of the present invention STRUCTURE DECOMPOSITION schematic diagram;
Figure 25 is the STRUCTURE DECOMPOSITION figure of the middle pipe among Figure 24;
Figure 26 is the STRUCTURE DECOMPOSITION figure of the spring button locking device of cooperation jack;
Figure 27 is the sectional drawing of the button cover of Figure 26;
Figure 28 is the structural representation of the locking button of Figure 26;
Figure 29 is the STRUCTURE DECOMPOSITION figure of the inner tube among Figure 24;
Figure 30 is the section of structure after a kind of the second embodiment contracting for photography and the quick-expansion support device of advertising sector of the present invention is closed;
Figure 31 is the section of structure after a kind of the second embodiment for photography and the quick-expansion support device of advertising sector of the present invention stretches;
Figure 32 is the part-structure sectional drawing that a kind of the second embodiment for photography and the quick-expansion support device of advertising sector of the present invention is stretched to limit position;
Figure 33 is that a kind of the second embodiment for photography and the quick-expansion support device of advertising sector of the present invention is applied in the application drawing on the photographic tripod;
Figure 34 is a kind of the third embodiment's for photography and the quick-expansion support device of advertising sector of the present invention structure general assembly schematic diagram;
Figure 35 is a kind of the third embodiment's for photography and the quick-expansion support device of advertising sector of the present invention STRUCTURE DECOMPOSITION schematic diagram;
Figure 36 is the STRUCTURE DECOMPOSITION figure for the middle pipe among Figure 35;
Figure 37 is the STRUCTURE DECOMPOSITION figure of the spring button locking device of cooperation tooth bar;
Figure 38 is the sectional drawing of the button cover of Figure 37;
Figure 39 is the STRUCTURE DECOMPOSITION figure of the inner tube among Figure 35;
Figure 40 is Figure 39 cross-sectional view;
Figure 41 is the section of structure after a kind of the third embodiment for photography and the quick-expansion support device of advertising sector of the present invention stretches;
Figure 42 is the part-structure sectional drawing that a kind of the third embodiment for photography and the quick-expansion support device of advertising sector of the present invention is stretched to limit position.
Embodiment
Relevant detailed description of the present invention and technology contents cooperate description of drawings as follows, yet accompanying drawing only provides the usefulness of reference with explanation, and the present invention is limited.
Embodiment 1:
According to illustrated in figures 1 and 2, a kind of quick-expansion support device for photography and advertising sector, comprise the inner tube 3, middle pipe 2 and the outer tube 1 that are nested successively, a termination is inner tube 3 upper end portions that the A end is fixed on middle pipe inside behind the pulley gear that wherein the pipe top arranges in driving belt 4 processes, driving belt 4 the other ends are that B holds in middle pipe external stability at inwall place, outer tube 1 underpart, pipe like this is in the situation that relatively static, and outer tube and inner tube realize the simultaneous retractable function by the connection for transmission of driving belt.
Fig. 3 and shown in Figure 4, outer tube 1 comprises outer tube body 1-1, outer tube driving belt fixed block 1-2, cap bag 1-3, outer tube wall has two location rib (effect of location rib is to prevent middle pipe rotation), outer tube driving belt fixed block 1-2 surface has two positioning grooves, matches with two fins of outer tube inner tube wall.Outer tube body 1-1 bottom peripheral wall is offered two relative circular holes, outer tube driving belt fixed block surface arranges two socket caps, can find out by Fig. 5, Fig. 6, Fig. 7, Fig. 8, outer tube driving belt fixed block is fixed in the circular hole of outer tube body by the socket cap of self, after fixing, overall outer is overlapped upper cover nut 1-3 again, and purpose is covered outer tube body tube bottom circular hole.The B of driving belt end is also offered circle hole sleeve on the socket cap of fixed block in addition, is sandwiched between outer tube wall and the fixed block inwall.
Fig. 9 and Figure 10, shown in Figure 11, middle pipe 2 comprises the pulley gear 2-2 at middle tube body 2-1, top, middle tube body bottom arranges screw-threaded coupling device 2-4, wherein pulley gear comprise by retaining screw 2-2-5 be interlocked about two shell 2-2-1,2-2-2, the inner pulley 2-2-3 that places on the pulley spindle 2-2-4 after fastening, offer respectively strip hole and the half round cut of being convenient to the driving belt turnover at two shells that are interlocked of pulley excircle both sides, pulley gear is fixed on middle tube body upper end by Fixed latches 2-3.Shown in Figure 12, be provided for the gear rib of driving belt guiding and location at the corresponding half round cut of middle inner tube wall place, gear rib and middle inner tube wall form gear rib groove, shown in Figure 13, the driving belt A end of walking around pulley is fixed on the inner tube upper end through half round cut and gear rib groove, is fixed on the outer tube lower end after the B end runs between outer tube body and the middle tube body through strip hole.Be enclosed within that the screw-threaded coupling device of middle tube body bottom is inner to be tapered configuration, by upwards screwing, interior through dwindling gradually until firmly tighten inner tube, realize that inner tube and middle pipe maintain static, because connection for transmission band between the inner and outer tubes, outer tube also can be firmly motionless, realized the quick locking of three pipes.
Figure 14 and Figure 15, Figure 16, Figure 17, shown in Figure 180, inner tube 3 comprises interior tube body 3-1, inner tube driving belt fixed block 3-2, rubber pad 3-5, inner tube driving belt fixed block is fixed on interior tube body upper end by Fixed latches 3-4 and forms one, the A of driving belt end is fixed in the screw hole that inner tube driving belt fixed block 3-2 offers by retaining screw 3-3, inner tube driving belt fixed block 3-2 one side is boss-shaped, screw hole namely is opened in boss side surfaces, when integral body is enclosed within middle pipe inside simultaneously, it is inner that the corresponding boss side surfaces of middle tube body inwall sticks into gear rib groove, prevents the relative rotation of middle pipe and inner tube.Button is established rubber pad in the bottom of interior tube body.
Shown in Figure 19, behind the retraction, when driving belt A end retracts the outer tube body downwards, driving belt B end drives upwards retraction of interior tube body simultaneously, retraction when having realized two pipes, working efficiency improves, and is shown in Figure 20, after the stretching, driving belt A end is outside upwards stretching during tube body, tube body pulled down and stretches in driving belt B end drove simultaneously, stretched when having realized two pipes, and working efficiency improves, shown in Figure 21, no matter be to stretch or retraction, when the contradiction limit position that makes inner tube driving belt fixed block and outer tube driving belt fixed block reach pulley can't continue to stretch, make the relative quick locking of three pipes by screwing the screw-threaded coupling device that is fixed on middle tube body bottom.Figure 22 is that the present invention is applied in respectively on three pin pipes of photographic tripod, and using effect is obvious, and whole work efficiency can rise to three pin pipes and multiply by three multiplying power.
Embodiment 2:
The present embodiment and embodiment's 1 structural principle are basic identical, difference is locking device, cooperate simultaneously different locking devices, interior tube body also has different slightly, something in common just repeats no more, according to Figure 23 and Figure 24, see be fixed on middle tube body bottom for spring button locking device 2-5, and the interior tube body 5-1 of inner tube 5 is in order to lock device, offered a plurality of (figure indicating 10) positioning hole, according to Figure 25, Figure 26, shown in Figure 27, spring button locking device 2-5 comprises the button cover 2-5-1 that is enclosed within middle tube body bottom, be hinged on the peg button 2-5-2 that button puts by button fixing pin 2-5-4, between one end of peg button and the button cover return button spring 2-5-3 is set, the other end then is provided with socket cap, this socket cap is stuck in the positioning hole of offering on the interior tube body peripheral wall, press spring one end of peg button, the first end of cylinder will be deviate from positioning hole automatically, unclamp pressing of finger, the return button spring is returned the cylinder crown in the positioning hole automatically.Convenient to use.
Shown in Figure 30, at first press the spring button locking device, socket cap breaks away from positioning hole, during retraction, when driving belt A end retracts the outer tube body downwards, driving belt B end drives upwards retraction of interior tube body simultaneously, retraction when having realized two pipes, working efficiency improves, and is shown in Figure 31, during stretching, also need at first to press the spring button locking device, socket cap breaks away from positioning hole, and driving belt A end is when upwards stretching outer tube body, and driving belt B end drives interior tube body and pulls down and stretches simultaneously, stretch when having realized two pipes, working efficiency improves, and is shown in Figure 32, no matter is to stretch or retraction, when the contradiction limit position that makes inner tube driving belt fixed block and outer tube driving belt fixed block reach pulley can't continue to stretch, by unclamping the spring button locking device that is fixed on middle tube body bottom of just now pressing, socket cap is sticked in the positioning hole of needed length, make the relative quick locking of three pipes.Figure 33 is that the present invention is applied in respectively on three pin pipes of photographic tripod, and using effect is obvious, and whole work efficiency can rise to three pin pipes and multiply by three multiplying power.
Embodiment 3:
In like manner, the present embodiment is basic identical with above example structure principle, difference also is to be locking device, cooperate simultaneously different locking devices, interior tube body also has different slightly, something in common just repeats no more, according to Figure 34 and 35, shown in Figure 36, the locking device that is fixed on middle tube body bottom also is spring button locking device 2-5, the as different from Example 2 change of peg button, according to Figure 37, Figure 38, Figure 39, shown in Figure 40, the peg button of the present embodiment is peg button 2-5-5, embodiment 2 peg button 2-5-2 is the socket cap of location usefulness with respect to the other end setting of spring, and the other end of the relative spring of peg button 2-5-5 in the present embodiment offers dentation structure, and the interior tube body 6-1 external cylindrical surface of inner tube 6 is offered longitudinal fluting, then be provided with dentation fixed strip 6-2 in the groove, press spring one end of peg button 2-5-5, dentation structure one end will be thrown off at dentation fixed strip 6-2 automatically, unclamp pressing of finger, the return button spring is automatically pushed up back dentation structure on the dentation fixed strip 6-2 and is blocked.Convenient to use.
Shown in Figure 41, at first press the spring button locking device, dentation structure breaks away from dentation fixed strip 6-2, during retraction, when driving belt A end retracts the outer tube body downwards, driving belt B end drives upwards retraction of interior tube body simultaneously, retraction when having realized two pipes, working efficiency improves, during stretching, also need at first to press the spring button locking device, dentation structure breaks away from dentation fixed strip 6-2, driving belt A end is outside upwards stretching during tube body, tube body pulled down and stretches in driving belt B end drove simultaneously, stretched when having realized two pipes, and working efficiency improves, shown in Figure 42, no matter be to stretch or retraction, when the contradiction limit position that makes inner tube driving belt fixed block and outer tube driving belt fixed block reach pulley can't continue to stretch, by unclamping the spring button locking device that is fixed on middle tube body bottom of just now pressing, dentation structure is sticked on the dentation fixed strip 6-2 of needed length, make the relative quick locking of three pipes.
The above only is preferred embodiment of the present invention, and non-in order to limit claim of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to claim of the present invention.