CN207179115U - Tripod button mechanism and tripod - Google Patents

Abstract

It the utility model is related to photography and vedio recording equipment technical field, and in particular to a kind of tripod button mechanism and tripod, wherein tripod button mechanism include angle retaining structure, are fixedly installed on the body of tripod；Press-button structure, including the button on the pin axle sleeve of tripod is rotatablely arranged at by first axle, button has the joint portion for being suitable to be combined with the screens of angle retaining structure, and joint portion is combined the distraction angle of the support feet of locking tripod with screens；Also include supporting construction, when being combined in joint portion with screens, supporting construction and button are against and the extended line of line and the extension line towards angle retaining structure institute at one end of support feet at the support of supporting construction to joint portion form angle setting.Tripod button mechanism provided by the utility model and tripod, be advantageous to strengthen tripod support leg stability of strutting system, reduce angle retaining structure cost, product structure further simplifies, and improves the competitiveness of product in market.

Description

Tripod button mechanism and tripod

Technical field

It the utility model is related to photography and vedio recording equipment technical field, and in particular to a kind of tripod button mechanism and three pin Frame.

Background technology

The support feet that the button mechanism of tripod is used for photographing foot stand fixes support feet when gear is adjusted in a certain position Put, realize the indexing regulation of support feet support angle, the structure type of button mechanism is a lot, the most pin of button type folding three During regulation, hand must be pressed the button frame always, and button can be just decontroled when rotating to selected gear, because This, operate inadequate comfortable labor-saving, does not also accomplish to adjust rapidly.

Therefore, present inventor devise it is a kind of during regulation without unanimously press the button operation tripod by Button mechanism, it is simple and compact for structure, comfortable labor-saving is operated, Chinese patent literature CN104344171A discloses a kind of tripod button Mechanism, including the angle retaining structure being arranged in tripod main body, support feet are rotated by pin axle sleeve and angle retaining structure Connection, button mechanism are arranged between pin axle sleeve and angle retaining structure, and button mechanism includes having and is suitable to and angle screens knot The button for the sharp mouth that structure card is matched somebody with somebody, and button connects are articulated with button in the push-button socket of pin axle sleeve, button by first axle Seat, when support feet is fixed on a certain position, sharp mouth side and the angle retaining structure card of button are matched somebody with somebody, the opposite side bottom of button Portion leans with push-button socket, and this of button is used as stress point at two, support feet is maintained at the gear, but in use It was found that the tripod button mechanism there is a problem in that：1st, due to the button work suffered when locking support pin keeps gear Firmly there is the trend for making button be directed away from the rotation of angle retaining structure, button in the presence of this trend easily and angle Skidded between retaining structure, cause support feet that off-gear occurs, reduce the stability of strutting system of support feet；2nd, because this kind is tied The button of structure easily skids with angle retaining structure, therefore the angle retaining structure selection ratchet structure of the design, due to Ratchet tilts down, and by the cooperation of ratchet and button point mouth, can strengthen angle screens knot by the ratchet tilted down The active force directed downwardly that structure is applied to sharp mouth, the possibility of skidding is reduced with this, this not only adds angle retaining structure Stress, the Structural strength calls to angle retaining structure are improved, and in the process of gear, each gear teeth of ratchet It is required for by milling cutter milling one by one, processing technology is complicated, and manufacturing cost is high.

Utility model content

Therefore, the technical problems to be solved in the utility model be to overcome in the prior art button easily with angle screens knot The defects of structure occurs to skid, causes the support feet stability of strutting system of tripod to decline, and angle retaining structure cost is high, so as to provide One kind is advantageous to strengthen tripod support leg stability of strutting system, reduces the tripod button mechanism of angle retaining structure cost.

Further provide for a kind of tripod with above-mentioned tripod button mechanism.

The technical solution adopted in the utility model is as follows：

A kind of tripod button mechanism, including：Angle retaining structure, is fixedly installed on the body of tripod；Button knot Structure, including the button on the pin axle sleeve of the tripod is rotatablely arranged at by first axle, the button have be suitable to The joint portion that the screens of the angle retaining structure combines, the joint portion is combined the branch for locking the tripod with the screens The distraction angle of spike；Also include supporting construction, when being combined in the joint portion with the screens, the supporting construction with it is described Button against, and at the support of the supporting construction to the joint portion line extended line and the support feet towards institute State angle retaining structure extension line at one end form angle and set, make the supporting construction apply to the button make it is described Button has the active force towards the trend rotated close to the angle retaining structure.

The supporting construction includes the first axle, when being combined in the joint portion with the screens, the first axle Axis to the extended line of the line of the joint portion and the direction of the support feet angle retaining structure prolonging at one end Stretch line and form angle setting.

The joint portion is turned under being formed by one end of the button towards the angle retaining structure, and corner is circle Arc transition.

The press-button structure also includes the push-button socket being fixedly installed on the pin axle sleeve, and the button passes through described first Axle is rotatablely arranged on the push-button socket.

Being formed on the button prevents the button in rotation process, the avoiding space to be offseted with the push-button socket.

The avoiding space is that the circular arc being opened on side of the button away from the angle retaining structure side lacks Mouthful.

Contacted between the joint portion and the screens for face.

Also include resetting voltage biasing structure, its partial pressure makes the button court and the angle card on the button Bit architecture bonding position spinning reduction.

When the joint portion is combined with the screens, the line to the joint portion and institute at the support of the supporting construction The angle of straight line is acute angle where stating the biasing force for resetting voltage biasing structure.

Also including making the button, from the button self-return structure of self-return at the supporting construction, the button is certainly Dynamic return structure includes the trigger unit being molded on the direction angle retaining structure side side of the button, and sets Stop part on the angle retaining structure, the button is with the support feet opening process, the stop part reaction Moment of torsion in the trigger unit is more than moment of torsion of the partial pressure on the button, and the two is in opposite direction.

The trigger unit is strip, and the position that the trigger unit contacts with the stop part is plane.

The stop part struts the first screens on direction for the angle retaining structure along the support feet.

The angle retaining structure is special shape gear, and the special shape gear has radially extending along the special shape gear The gear teeth.

The tooth form of the gear teeth is arc toothed.

Arc transition at the crown of the gear teeth.

The top of the special shape gear is in arc surface, described to press after the trigger unit is contradicted with the stop part Detained by the button self-return structure function to the arc surface joint portion of button.

A kind of tripod, including described tripod button mechanism.

Technical solutions of the utility model, have the following advantages that：

1. tripod button mechanism provided by the utility model, including the angle card being fixedly installed on the body of tripod Bit architecture, the press-button structure being arranged on the pin axle sleeve of tripod, and supporting construction, press-button structure includes can by first axle Button on the pin axle sleeve of tripod, can coordinating with angle retaining structure is rotatably arranged in, button has and angle card The joint portion that the screens of bit architecture combines, when joint portion is combined with screens, the distraction angle of the support feet of tripod is locked, no Change again, in the state of distraction angle locking, supporting construction and button for button against providing support force, support is pressed The joint portion of button is combined with screens, and the extended line of line and the direction of support feet of joint portion are arrived at the support of supporting construction Angle retaining structure extension line at one end form angle and set, namely the effect that supporting construction is the support force that button provides What support feet was pointed in direction causes button that there is direction to lean on towards angle retaining structure institute extension line at one end, this active force The trend that nearly angle retaining structure rotates, this trend cause button joint portion and screens combination it is even closer, joint portion It is less likely to occur skidding, off-gear between screens, the stability of strutting system of support feet is stronger；Meanwhile by the adjustment of supporting construction, So that the combination between joint portion and screens is more closely stablized, it is no longer necessary to joint portion is applied by angle retaining structure auxiliary The active force pushed, reduce to angle retaining structure design requirement in itself and Structural strength calls, without again using processing The high ratchet structure of complex process, manufacturing cost, advantageously reduce the overall production cost of tripod, there is provided the market of product Competitiveness.

2. tripod button mechanism provided by the utility model, supporting construction includes first axle, the joint portion of button with When screens combines, the extended line of the axis of first axle to the line of joint portion and support feet towards angle retaining structure place one The extended line at end forms angle and set, and button is more tied not only using first axle as center of rotation reciprocating rotation by support of first axle Structure, in the state of being combined in joint portion with screens, first axle provides support for button, button is had towards close to angle screens Structure rotate trend, this trend cause button joint portion and screens combination it is even closer, between joint portion and screens Skidding, off-gear are less likely to occur, the stability of strutting system of support feet is stronger；Secondly, it is by changing using first axle as supporting construction Become the performance of the stress lifting button of existing structure, without being separately provided a part again as supporting construction, have Beneficial to the compact, simplified of press-button structure design, make product more brief high-end；Again, by the use of first axle as supporting construction, make The axis of first axle to the line of joint portion extended line and support feet towards angle retaining structure extended line at one end Form angle to set, former compared to applicant is designed equivalent to the center of rotation for having raised button, on the one hand advantageously reduces Button protrudes the height of pin axle sleeve, button is more sunk in pin axle sleeve, and profile is more attractive in appearance, and the globality of product is stronger, On the other hand, button press can be passed through in locking discharging the rotation amplitude switched between two states, user by reducing button The switching that smaller angle realizes button state is rotated, more laborsaving, operating handle is more preferable.

3. tripod button mechanism provided by the utility model, joint portion from button towards one end of angle retaining structure to Lower bending shape into, be advantageous to improve joint portion Impact direction, make joint portion be easier with angle retaining structure coordinate, further prevent Only skidding, off-gear, the corner arc transition of the joint portion of button, feel are smooth, it is not easy to press against hand.

4. tripod button mechanism provided by the utility model, press-button structure also include being fixedly installed on pin axle sleeve by Button seat, button are rotatablely arranged on push-button socket by the first axle, and button rotates relative to push-button socket, realize with angle Retaining structure is spent to combine and with the state between angle retaining structure departs from switch.

5. tripod button mechanism provided by the utility model, being formed on button prevents button in rotation process with pressing The avoiding space that button seat offsets, especially cut in button from departing from angle retaining structure to the state combined with angle retaining structure During changing, button is rotated centered on first axle towards close to the direction of angle retaining structure, until the joint portion of button Screens with angle retaining structure is combined, and realizes the locking of support feet gear, and in this rotation process, sky is avoided due to forming Between, the side of side of the button away from angle retaining structure does not offset with push-button socket all the time, to prevent push-button socket and the button side Bottom contradict, opposition is applied to button, because button bottom is to the extended line and support feet of the line of joint portion Towards angle retaining structure extended line at one end it is non-intersect, namely the support force that the push-button socket that is subject to of button bottom provides makes Button has the trend for being directed away from the rotation of angle retaining structure, is unfavorable for the joint portion of button and the combination of screens consolidates.

6. tripod button mechanism provided by the utility model, is contacted between joint portion and screens for face, be advantageous to increase Joint portion and the contact area of screens, improve the uniform force of joint portion.

7. tripod button mechanism provided by the utility model, in addition to voltage biasing structure is resetted, reset the inclined of voltage biasing structure Pressure is acted on button, button is resetted setting for voltage biasing structure towards the direction spinning reduction combined with angle retaining structure Put so that button is pressed driving or miscellaneous part when stirring, can be in the case where resetting the partial pressure of voltage biasing structure, more Quickly disposable completion and the combination of angle retaining structure, reset more fast power-saving.

8. tripod button mechanism provided by the utility model, the joint portion of button is combined with the screens of angle retaining structure When, to the angle of straight line where biasing force of the line with resetting voltage biasing structure of joint portion it is acute angle at the support of supporting construction, This set make it that resetting the active force that voltage biasing structure applies to button makes button have towards close to the rotation of angle retaining structure Trend, be advantageous to strengthen combining closely for joint portion and screens, further prevent from skidding, off-gear.

9. tripod button mechanism provided by the utility model, the setting of button self-return structure, by trigger unit with The conflict of stop part, pressed without hand can realize that the joint portion of button takes off automatically from screens by the upward rotation of support feet Go out, be easy to support feet collapse upwards or downwards step by step screens or downwards collapse.

10. tripod button mechanism provided by the utility model, trigger unit are strip, are advantageous to trigger unit and are obstructed stopper Stir, drive push-button reset.

11. tripod button mechanism provided by the utility model, stop part is angle retaining structure along the support feet side of strutting The first upward screens, without being separately provided stop part, but utilize the first screens to form stop part, not only improve button mechanism Integrally-built simplification and compact, after again trigger unit being contradicted with the first screens, button self-return, support feet can be upward Collapse.

12. tripod button mechanism provided by the utility model, angle retaining structure is special shape gear, and the gear teeth are along heteromorphic teeth Wheel radially extends, and this special shape gear need not be by milling cutter to the milling one by one of each gear teeth, but uses turning mode once Property machines the shaping of all gear teeth, and processing technology is simple, and manufacturing cost is low, advantageously reduces the manufacturing cost of tripod.

13. tripod button mechanism provided by the utility model, the tooth forms of the gear teeth of special shape gear be it is arc toothed, can Contacted with the joint portion forming face of button, be advantageous to increase the contact area of the gear teeth and joint portion, improve the uniform of tooth force Property, further prevent from skidding.

14. tripod button mechanism provided by the utility model, arc transition at the crown of the gear teeth, it is not easy to scratch and use Person, more safety convenient, and joint portion is combined with knuckle-tooth, and during gear switch, with reference to easily, noise is smaller.

15. tripod button mechanism provided by the utility model, the top of special shape gear is in arc surface, make trigger unit and resistance After stopper contradicts, the joint portion of button is detained to arc surface by button self-return structure function, the joint portion of button with The arc surface of special shape gear coordinates more smooth, noise of the reduction button in reseting procedure.

16. tripod provided by the utility model, including above-mentioned tripod button mechanism, the lock-out state of support feet are not easy Generation is skidded, off-gear, and the stability of strutting system of support feet is high, and manufacturing cost is low, and product structure is brief attractive in appearance, operates comfortable labor-saving, The market competitiveness greatly improves.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the three-dimensional knot of the tripod for being provided with tripod button mechanism provided in embodiment one of the present utility model Structure schematic diagram；

Fig. 2 is the exploded perspective view of the tripod shown in Fig. 1；

Fig. 3 is that press-button structure shown in Fig. 1 is in longitudinal sectional view with angle retaining structure bonding state；

Fig. 4 is the dimensional structure diagram that three support feets of the tripod shown in Fig. 1 collapse；

Fig. 5 is the dimensional structure diagram that the support feet of the tripod shown in Fig. 1 is fixed in the first screens；

Fig. 6 is that the button of the tripod shown in Fig. 1 is keeping keeping the tripod of open configuration at retaining structure by screens Dimensional structure diagram；

Fig. 7 is that the support feet of the tripod shown in Fig. 1 turns to trigger unit contacts with stop part (i.e. the first screens) three The dimensional structure diagram of foot stool；

Fig. 8 is that the stop part of the tripod shown in Fig. 1 makes button rotate releasing holding screens to the reaction force of trigger unit The dimensional structure diagram of the tripod of screens of the structure to button；

Fig. 9 is the dimensional structure diagram that the support feet of the tripod shown in Fig. 1 collapses straight up；

Figure 10 be at the support of the supporting construction of the tripod shown in Fig. 1 (axis of first axle) to the line of joint portion Extended line and support feet towards angle retaining structure extension line at one end form the schematic diagram that angle sets；

Figure 11 is to the line and reset voltage biasing structure of joint portion at the support of the supporting construction of the tripod shown in Fig. 1 The angle of straight line where biasing force is the schematic diagram of acute angle.

Description of reference numerals：

1- bodies；2- angle retaining structures；3- pin axle sleeves；4- buttons；5- keeps retaining structure；6- joint portions；7- is contradicted Portion；8- press sections；9- first axles；10- steady pins；11- bar holes；The axles of 12- second；The axles of 13- the 3rd；14- springs；15- is installed Groove；16- trigger units；17- stop parts；18- push-button sockets；19- concave faces；20- support feets；21- connecting shafts；22- connecting shaft screws； 23- arc gaps；The 24- gear teeth；25- crowns.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other Conflict can is not formed to be combined with each other.

Embodiment one

Fig. 1 is the three-dimensional knot of the tripod for being provided with tripod button mechanism provided in embodiment one of the present utility model Structure schematic diagram；Fig. 2 is the exploded perspective view of the tripod shown in Fig. 1；Fig. 3 is that the press-button structure shown in Fig. 1 is in and angle card The longitudinal sectional view of bit architecture bonding state；Fig. 4 is the stereochemical structure signal that three support feets of the tripod shown in Fig. 1 collapse Figure；Fig. 5 is the dimensional structure diagram that the support feet of the tripod shown in Fig. 1 is fixed in the first screens；Fig. 6 is Fig. 1 institutes The button of the tripod shown is keeping the dimensional structure diagram of the tripod of holding open configuration at retaining structure by screens；Figure 7 be that the support feet of the tripod shown in Fig. 1 turns to the solid for the tripod that trigger unit contacts with stop part (i.e. the first screens) Structural representation；Fig. 8 is that the stop part of the tripod shown in Fig. 1 makes button rotate releasing holding card to the reaction force of trigger unit The dimensional structure diagram of the tripod of screens of the bit architecture to button；Fig. 9 be the tripod shown in Fig. 1 support feet vertically to The dimensional structure diagram of upper gathering；Figure 10 is (axis of first axle) at the support of the supporting construction of the tripod shown in Fig. 1 To the line of joint portion extended line and support feet towards angle retaining structure extension line at one end form angle and set Schematic diagram；Figure 11 is to the line and reset voltage biasing structure of joint portion at the support of the supporting construction of the tripod shown in Fig. 1 Biasing force where straight line angle be acute angle schematic diagram.As shown in Fig. 1-3 and Figure 10, the pin of one kind three of the present embodiment offer Frame button mechanism, including the angle retaining structure 2 being installed on the body 1 of tripod, and the pin axle sleeve 3 installed in tripod On, the press-button structure that locks the support feet 20 of tripod after being combined with the screens on the angle retaining structure 2, the button Structure includes the button 4 being rotatably arranged in by first axle 9 on the pin axle sleeve 3, and its partial pressure is described Reset voltage biasing structure on button 4, in addition to be arranged on the pin axle sleeve 3, below the angle retaining structure 2, And the holding retaining structure 5 being oppositely arranged with the angle retaining structure 2, the press section 8 of the button 4 towards angle screens The upper end of structure 2 is turned under forming the joint portion 6 combined to the corresponding screens on the angle retaining structure 2, and corner is Arc transition, the lower end relative with upper end of the press section 8 form a contact part 7, and the lower end of the press section 8 is pressed When, the screens is deviate from the joint portion 6, and the contact part 7 is combined with the holding retaining structure 5.

Also include supporting construction, be first axle 9, in the state of the distraction angle locking of support feet 20, first axle 9 is with pressing Button 4 is against for the offer support force of button 4, the joint portion 6 of support button 4 is combined with screens, and is arrived at the support of first axle 9 The extended line of the line of joint portion 6 and support feet 20 towards angle retaining structure 2 extension line at one end form angle and set Put, namely the action direction of support force that is provided for button 4 of first axle 9 point to support feet 20 towards the institute of angle retaining structure 2 Extension line at one end.

Button 4 is supporting construction more with first axle 9, in joint portion 6 not only with first axle 9 for center of rotation reciprocating rotation In the state of being combined with screens, first axle 9 is that button 4 provides support, button 4 is had towards close 2 turns of angle retaining structure Dynamic trend, this trend cause button 4 joint portion 6 and screens combination it is even closer, do not allow between joint portion 6 and screens Skidding, off-gear easily occurs, the stability of strutting system of support feet 20 is stronger；Secondly, it is by changing using first axle 9 as supporting construction Become the performance of the stress lifting button 4 of existing structure, without being separately provided a part again as supporting construction, have Beneficial to the compact, simplified of the structure design of button 4, make product more brief high-end；Again, by the use of first axle 9 as supporting construction, Make the axis of first axle 9 to extended line and the support feet 20 of the line of joint portion 6 towards angle retaining structure 2 at one end Extended line forms angle and set, favourable equivalent to the center of rotation for having raised button 4, one side compared to the former design of applicant In the height for reducing button 4 and protruding pin axle sleeve 3, button 4 is more sunk in pin axle sleeve 3, profile is more attractive in appearance, product it is whole Body is stronger, and on the other hand, reducing button 4 can lead in locking discharging the rotation amplitude switched between two states, user Cross button press 4 and rotate the switching that smaller angle realizes the state of button 4, more laborsaving, operating handle is more preferable.

Also include a guide being oriented to the direction of the biasing force, the first end of the guide is connected to On the button 4, the second end is movably connected on the pin axle sleeve 3, and the button 4 is under external force around the first axle 9 when rotating clockwise or counterclockwise, and the guide drives work in the same plane around the guiding by the button 4 The active connection place at the second end of part is made counterclockwise or rotationally clockwise, and the reset voltage biasing structure is with the biasing force Direction is arranged on the guide with extending from the active connection place at second end to the junction direction of the first end.

By keeping the setting of retaining structure 5, after the joint portion 6 of button 4 is deviate from from screens, contact part is blocked with keeping Bit architecture 5 combines, and is maintained at contact part in the effect for resetting the biasing force that voltage biasing structure provides and keeps at retaining structure 5, Because the state that the joint portion 6 of button 4 departs from screens is locked, such user's can easily adjusts support feet 20 and arrived After required gear, by pressing the upper end of press section 8, button 4 is set to rotate return, the joint portion 6 of button 4 and corresponding screens are again It is secondary to be locked in reference to and by support feet 20 in the screens, thus use it is very convenient, comfortable, time saving, laborsaving.Simultaneously with by Button 4 link guide, because its one end is connected on button 4, and rotation direction always with the rotation direction of button 4 on the contrary, because This, can realize using only a reset voltage biasing structure, it becomes possible to provide pretension for the various states in the rotation process of button 4 Power, when being combined such as joint portion 6 with corresponding screens, biasing force makes joint portion 6 be close to screens by acting on button 4, supports When contact portion is combined with holding retaining structure 5, biasing force makes contact part with keeping retaining structure 5 to be close to by acting on button 4 Deng so that tripod mechanism of the present utility model simple and compact, cost are low.

In the present embodiment, one end of the guide forms axis hole, and the other end forms bar hole 11, and bar hole 11 Length direction point to the axis hole；The guide passes through the axis hole by the second axle 12, by described in the guide First end is connected on the button 4, and the bar hole 11 is passed through by the 3rd axle 13, by second end of the guide It is movably connected on the pin axle sleeve 3；And axle center of the direction of the biasing force along the 3rd axle 13 is to second axle 12 Axis direction extension.It is preferred that the reset voltage biasing structure is spring 14, the guide is a steady pin, 14 sets of the spring It is located on the steady pin 10, and one end contradicts second axle 12, the other end contradicts the 3rd axle 13 and set.

Further, mounting groove 15 is formed on the end of the button 4, the steady pin 10 is provided with the one of the axis hole In the mounting groove 15, the other end that the steady pin 10 is provided with the bar hole 11 is stretched out outside the button 4, described at end The both ends of second axle 12 are connected in the two opposite side walls of the mounting groove 15, and such structure not only makes structure letter gather, And the linkage between button 4 and guide can be made more steady.

Also include the button self-return structure for making the button 4 from self-return at the holding retaining structure 5, it is described Button self-return structure includes the trigger unit being molded on the direction side side of angle retaining structure 2 of the button 4 16, and the stop part 17 being arranged on the angle retaining structure, the button 4 is with the support feet opening process, institute State moment of torsion of the reaction of stop part 17 in the trigger unit 16 and be more than moment of torsion of the partial pressure on the button 4, And the two is in opposite direction, overcomes the biasing force so as to prop up the button 4 by stop part 17, make the press section of the button 8 rotate reset towards the direction of angle retaining structure 2, and the contact part 7 of button 4 separates with the holding retaining structure 5, button 4 Joint portion 6 and the upper arc surface of angle retaining structure 2 be adjacent to.In the present embodiment, trigger unit 16 can be to be molded over button Salient angle.

Trigger unit 16 is strip.

As shown in figure 11, when the joint portion 6 of button 4 is combined with the screens of angle retaining structure 2, at the support of supporting construction The angle of line to joint portion 6 and straight line where the biasing force of reset voltage biasing structure is acute angle, and this set to reset partially The active force that laminated structure applies to button 4 makes button 4 have towards the trend rotated close to angle retaining structure 2, is advantageous to increase Strong joint portion 6 is combined closely with screens, further prevents skidding, off-gear.

In order that overall structure more simple and compact, the stop part 17 by the angle retaining structure 2 the first screens shape Into.

The contact part 7 is a protuberance, described to keep retaining structure 5 to be molded over the step surface on the pin axle sleeve 3 Formed.For the ease of the installation of the machine-shaping of pin axle sleeve, and press-button structure, push-button socket 18 is additionally provided with the pin axle sleeve 3, The press-button structure is arranged on the push-button socket 18.In the present embodiment, preferably described push-button socket 18 has bottom surface, Yi Jiyu The two opposite side walls that the plane perpendicular is set, the bottom surface of the push-button socket 18 are connected with the end contact of the pin axle sleeve 3, institute State the both ends of first axle 9, the both ends of the 3rd axle 13 are respectively fixed in the two opposite side walls of the push-button socket 18, described Step surface is formed by the end and the end face of the pin axle sleeve 3 of the push-button socket 18.

The avoiding space for preventing that button 4 from offseting in rotation process with push-button socket 18 is formed on button 4, avoiding space is The arc gap 23 being opened on side of the button 4 away from the side of angle retaining structure 2, especially button 4 from angle screens During structure 2 departs to the state switching combined with angle retaining structure 2, button 4 is centered on first axle 9 towards close The direction of angle retaining structure 2 rotates, until the joint portion 6 of button 4 is combined with the screens of angle retaining structure 2, realizes support The locking of the gear of pin 20, in this rotation process, due to forming avoiding space, side of the button 4 away from angle retaining structure 2 Side do not offseted all the time with push-button socket 18, with prevent the bottom of push-button socket 18 Yu button 4 side contradict, button 4 is applied instead To active force, because the bottom of button 4 is to extended line and the support feet 20 of the line of joint portion 6 towards the institute of angle retaining structure 2 Extended line at one end is non-intersect, namely the support force that the push-button socket 18 that is subject to of the bottom of button 4 provides makes button 4 have towards remote The trend that digression degree retaining structure 2 rotates, is unfavorable for the joint portion 6 of button 2 and the firm combination of screens.

Angle retaining structure 2 in the present embodiment is special shape gear, has along gear and radially extends the gear teeth 24, this different Shape gear need not be by milling cutter to each milling one by one of the gear teeth 24, but disposably machines all gear teeth using turning mode 24 shaping, processing technology is simple, and manufacturing cost is low, advantageously reduces the manufacturing cost of tripod.

The tooth form of the gear teeth 24 of special shape gear is arc toothed, and the position that joint portion 6 contacts with special shape gear is plane, is touched The position that hair portion 16 contacts with the first screens is plane, is coordinated by the conflict of plane and plane, increases contact area, improve by Power uniformity, it can further prevent from skidding, increase the durability of special shape gear.

Arc transition at the crown 25 of special shape gear, it is not easy to scratch user, more safety convenient.

The top (being not provided with screens) of special shape gear is in arc surface so that button 4 supports in trigger unit 16 and stop part 17 To lean on towards during the rotation reset of angle retaining structure 2, the joint portion 6 of button 4 and the arc surface cooperation of special shape gear are more smooth, Reduce the noise in reseting procedure；In order to ensure that the energy of button 4 nothing can not interferingly be interfered around the angle retaining structure 2 Ground 180 degree rotates, and concave face 19 is formed between joint portion 6 and trigger unit 16, the bottom of special shape gear is arranged to plane, avoids doing Button 4 is related to rotate.

The present embodiment also provides a kind of tripod with above-mentioned tripod button mechanism, and the course of work is as follows：

As shown in figure 4, the support feet 20 of tripod is in rounding state straight down, can when needing to open tripod Support feet 20 outwards is pulled, the joint portion 6 of button 4 is combined with the first screens of angle retaining structure 2, now as shown in Figure 5. Then press...with one's finger the lower end of lower press section 8, and button 4 overcomes the biasing force of spring to axially retain the direction of retaining structure 5 around first Rotate, joint portion 6 is deviate from from the first screens, the then contact of contact part 7 keeps retaining structure 5, at the same time, spring 14 Bias force direction changes with the rotation of steady pin, and the bias force direction of spring 14, which becomes to prop up button 4, is close to contact part 7 Retaining structure 5 is kept, as shown in fig. 6, now button is maintained at holding retaining structure 5, can be with easy adjustment support foot 20 After at required screens, then the upper end of press section 8 is pressed, button 4 rotates around first axle 9 to the direction of angle retaining structure 2, makes Contact part 7 is from keeping deviating from retaining structure 5, and then joint portion 6 is combined with the selected screens on angle retaining structure 2, At the same time, the bias force direction of spring 14 changes with the rotation of steady pin, and the bias force direction of spring 14 becomes to prop up Button 4 makes joint portion 6 be close to corresponding screens.

Certainly, when button 4, which is maintained at, to be kept at retaining structure 5, can also be carried out by button self-return structure Self-return, as shown in fig. 7, need to only continue outwards to pull support feet 20, until trigger unit 16 and stop part 17 are (in the present embodiment Stop part 17 is served as by the first screens) contradict, make button that the rotation towards angle retaining structure direction occur, contact part 7 is from holding Deviate from retaining structure 5, trigger unit 16 separates with stop part 17, as shown in figure 8, now, it is vertical to pull support feet 20 The state collapsed upwards, as shown in Figure 9.

Support feet 20 in upward rounding state can pull support feet 20, button directly down when needing to open On arc surface of the joint portion 6 along angle retaining structure 2 slip into the 3rd screens, support feet is fixed at the 3rd screens, It can also continue to inwardly pull, joint portion 6 is slipped into the second screens successively, in the first screens, and support feet 20 can successively be consolidated It is scheduled at the second screens, at the first screens, until support feet 20 finally collapses straight down, collapses very convenient, laborsaving.

As the alternative embodiments of embodiment one, button from angle retaining structure depart to angle screens knot During the state switching that structure combines, button is rotated centered on first axle towards close to the direction of angle retaining structure, directly Combined to the joint portion of button with the screens of angle retaining structure, realize the locking of support feet gear, button is away from angle screens The top of the side of structure side offsets with push-button socket, and the top is to the extended line of the line of joint portion and the court of support feet To angle retaining structure extended line at one end form angle and set, the supporting construction is formed, it is necessary to explanation, on this Rotation of the button in stateful switchover process is not interfered in portion.

As the alternative embodiments of embodiment one, joint portion is bent up by one end of button towards angle retaining structure Formed, corner is arc transition or is broken line transition.

As the alternative embodiments of embodiment one, avoiding space is to be opened in button away from angle retaining structure side Side on arbitrary shape breach.

As the alternative embodiments of embodiment one, the flank of tooth of the gear teeth of special shape gear is plane.

As the alternative embodiments of embodiment one, the flank of tooth of the gear teeth of special shape gear is plane, the crown of the gear teeth with The flank of tooth is to seamlessly transit.

As the alternative embodiments of embodiment one, the flank of tooth of the flank of tooth of joint portion and the gear teeth, trigger unit and the gear teeth it Between contact for point a contact, linear contact lay, face contact in any one.

As the alternative embodiments of embodiment one, trigger unit is laminar hook-shaped or other do not interfere button to rotate Arbitrary shape.

As the alternative embodiments of embodiment one, stop part is the protuberance taken shape in below the first screens.

As the alternative embodiments of embodiment one, angle retaining structure is not limited to three kinds of screens, can be according to tool Body needs to design a variety of screens.

Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or Among the protection domain that variation is created still in the utility model.

Claims (17)

1. a kind of tripod button mechanism, including：

Angle retaining structure (2), it is fixedly installed on the body (1) of tripod；

Button (4) structure, including the button on the pin axle sleeve (3) of the tripod is rotatablely arranged at by first axle (9) (4), the button (4) has the joint portion (6) for being suitable to be combined with the screens of the angle retaining structure (2), the joint portion (6) distraction angle for the support feet (20) for locking the tripod is combined with the screens；

Characterized in that, also include supporting construction, when being combined in the joint portion (6) with the screens, the supporting construction with The button (4) against, and at the support of the supporting construction to the joint portion (6) line extended line and the support The direction angle retaining structure (2) of pin (20) extension line at one end form angle and set, make the supporting construction to The button (4), which applies, makes the button (4) have the function that towards the trend rotated close to the angle retaining structure (2) Power.

2. tripod button mechanism according to claim 1, it is characterised in that the supporting construction includes the first axle (9) when, being combined in the joint portion (6) with the screens, the line of the axis of the first axle (9) to the joint portion (6) Extended line and the direction angle retaining structure (2) of the support feet (20) extension line at one end form angle and set Put.

3. tripod button mechanism according to claim 1, it is characterised in that the joint portion (6) is by the button (4) It is turned under being formed towards one end of the angle retaining structure (2), and corner is arc transition.

4. tripod button mechanism according to claim 1, it is characterised in that button (4) structure also includes fixing The push-button socket (18) being arranged on the pin axle sleeve (3), the button (4) are rotatablely arranged at by the first axle (9) On the push-button socket (18).

5. tripod button mechanism according to claim 4, it is characterised in that being formed on the button (4) prevents institute Button (4) is stated in rotation process, the avoiding space to be offseted with the push-button socket (18).

6. tripod button mechanism according to claim 5, it is characterised in that the avoiding space for be opened in it is described by Arc gap (23) on side of the button (4) away from angle retaining structure (2) side.

7. tripod button mechanism according to claim 1, it is characterised in that the joint portion (6) and the screens it Between for face contact.

8. the tripod button mechanism according to any one of claim 1-7, it is characterised in that also include resetting bias knot Structure, its partial pressure make the button (4) be revolved towards with angle retaining structure (2) bonding position on the button (4) Turn to reset.

9. tripod button mechanism according to claim 8, it is characterised in that the joint portion (6) and the screens knot During conjunction, the line to the joint portion (6) and the biasing force place for resetting voltage biasing structure at the support of the supporting construction The angle of straight line is acute angle.

10. tripod button mechanism according to claim 8, it is characterised in that also include making the button (4) from described The button self-return structure of self-return at supporting construction, the button self-return structure include being molded over the button (4) the trigger unit (16) on direction angle retaining structure (2) the side side, and it is arranged on the angle retaining structure (2) stop part (17) on, the button (4) is with the support feet (20) opening process, stop part (17) reaction Moment of torsion in the trigger unit (16) is more than moment of torsion of the partial pressure on the button (4), and the two direction phase Instead.

11. tripod button mechanism according to claim 10, it is characterised in that the trigger unit (16) is strip.

12. tripod button mechanism according to claim 10, it is characterised in that the stop part (17) is the angle Retaining structure (2) struts the first screens on direction along the support feet (20).

13. tripod button mechanism according to claim 10, it is characterised in that the angle retaining structure (2) is different Shape gear, the special shape gear have the gear teeth (24) radially extended along the special shape gear.

14. tripod button mechanism according to claim 13, it is characterised in that the tooth form of the gear teeth (24) is circular arc Tooth form.

15. tripod button mechanism according to claim 13, it is characterised in that crown (25) place of the gear teeth (24) Arc transition.

16. tripod button mechanism according to claim 13, it is characterised in that the top of the special shape gear is in circular arc Face, after the trigger unit (16) is contradicted with the stop part (17), the joint portion (6) of the button (4) is pressed by described Button self-return structure function, is detained to the arc surface.

A kind of 17. tripod, it is characterised in that including：

Tripod button mechanism as any one of claim 1-16.