CN103009357B - Quick-fold tripod - Google Patents

Abstract

A foot rest capable of being folded quickly comprises a bearing piece, a pair of pivoting pieces pivoted on a first side portion of the bearing piece, a first support piece pivoted on the pivoting pieces, a first support unit pivoted between the bearing piece and the first support piece, a second support piece pivoted on the first support piece and a second support unit pivoted between the bearing piece and the second support piece. When the bearing piece is operated, the second support piece can be unfolded relative to the first support piece by utilizing the linkage of the first support unit and the second support unit, and the foot rest is in an unfolded state, or the second support piece can be folded relative to the first support piece, and the foot rest is in a folded state.

Description

Quick-fold tripod

technical field

The invention relates to a support carrier, in particular to a rapidly foldable tripod.

Background technique

In order to facilitate the movement of general small processing machines (such as table sawing machines), most of the tripods carrying the machines are equipped with a foldable design for easy moving and use between different workplaces.

Such as U.S. Patent Publication No. US6942229, No. US5560582, and U.S. Patent Application Publication No. US2005/0199768A1 respectively provide tripods with the aforementioned functions. In Taiwan Invention Patent No. 1 311520, the support frame includes a carrying platform, a pair of first feet pivotally arranged on one side of the carrying platform, a pair of pivotally arranged on the other side of the carrying platform and connected to the first support platform. A second leg that is pivotally connected to each other, a pair of elastic members sleeved on the second leg, and a fixing device, the fixing device has a handle that slides through the bearing platform, two and the The handle is pivotally connected to the second connecting rod, the two first connecting rods are pivotally connected to the second connecting rod, and the two springs are respectively sleeved between the first connecting rod and the bearing platform. When the support frame is unfolded, when the handle is pulled, the second connecting rod can be driven to pivot, and the second connecting rod can be linked to the first connecting rod to generate a relative approach along a straight line. And the end of the first connecting rod is detached from the two positioning holes of the second leg, so that the second leg can slide along a pair of sliding sleeves respectively, so that the support frame can be folded.

The above-mentioned support frame can be used for carrying equipment, and can achieve the expected purpose of folding and unfolding, but it is necessary to provide another support frame with a more convenient and fast operation type, so the invention was developed.

Contents of the invention

The purpose of the present invention is to provide a fast foldable tripod which is simple in structure, easy to operate, and can be quickly operated into an unfolded or folded state. The quick-foldable tripod of the present invention comprises a carrier, a pair of pivotal parts pivotally arranged on the carrier, a first bracket part pivotally connected to the pivotal part, a first bracket part pivotally connected to the A first supporting unit between the carrier and the first bracket, a second bracket pivotally connected to the first bracket, and a second bracket pivotally connected between the carrier and the second bracket Two supporting units. The bearing part has a first side part and a second side part opposite to the first side part. The first support unit is pivotally connected to the first frame on the second side and the first frame is pivotally connected to the first frame on the pivot member and a bottom frame part connected to the first frame. Between the rods, the second bracket has a pair of second rods pivotally connected to the first rods respectively, and each of the second rods has an end portion corresponding to the bottom frame portion. The two support units are pivotally connected between the pivotal member and the second frame rod, and can position the second frame member relative to the first frame member, wherein, when the tripod is in an erect state, the The second bracket part is deployed relative to the first bracket part, the second side part of the bearing part is away from the first bracket part, the end part is away from the bottom frame part, and the second support unit can make the second bracket part The part is positioned relative to the first bracket part. When the tripod is in a folded state, the second bracket part is folded relative to the first bracket part, and the second side of the carrier part is close to the first bracket. member, the end portion approaches the chassis portion.

The quick-foldable tripod of the present invention also includes an operating unit installed on the first bracket member, the operating unit has a pedal, and a first frame that is spaced apart from the pedal and is pivotally mounted on one of the pedals. A push rod on the rod and a connecting rod pivotally connected between the pedal rod and the push rod, the pedal rod has a pivot part that can pivot relative to the first rack rod and a pivot part connected to the pivot part Opposite to the stepping portion, the push rod has a first end and a second end opposite to the first end and corresponding to the carrier, the connecting rod has a pivot connection between the pivoting portion and the stepping The first pivoting part between the two parts and a second pivoting part pivoted on the first end part, when the second side part of the carrier part approaches the first bracket part, step on the stepping part The push rod can be pulled by means of the connecting rod, and the second end pushes the second side of the bearing part away from the first support part.

In the quick-foldable tripod of the present invention, the operating unit also has a return spring, the return spring is connected between the stepping part and the first end, and its elastic force keeps the stepping part and the second end relatively close trend.

In the rapidly collapsible tripod of the present invention, the second support member further has a pair of rollers respectively pivotally mounted on the end portions.

In the quick-foldable tripod of the present invention, the first frame rod of the first bracket part is vertically connected with the bottom frame part, and the first bracket part also has two As for the turning part between the bottom frame part, when the second support part is deployed relative to the first support part, the turning part corresponds to the ground.

In the rapidly collapsible tripod of the present invention, the first bracket part further has two locking parts installed on the turning parts respectively.

In the rapidly collapsible tripod of the present invention, each of the first rods of the first bracket has a pair of pivot plates arranged in the middle section, and each of the pivot plates has a positioning portion in the shape of an inclined surface. The second frame rods of the second bracket also each have a pair of clamping plates approaching the pivot plate and for the pivotal connection of the second supporting unit, and each of the clamping plates has a planar stop When the stand is in an extended state, the stopper is against the positioning part, and when the stand is in a folded state, the stopper is far away from the positioning part.

The quick-foldable tripod of the present invention also includes a locking unit installed on the first side of the carrier, the locking unit has a sleeve fixed on the first side, a A clamping rod passing through the sleeve and a spring sleeved between the sleeve and the clamping rod, the clamping rod has a clamping end corresponding to one of the pivoting parts and a clamping end corresponding to the The clamping end is opposite to the drawer end protruding from the outside of the sleeve. When the second bracket is unfolded relative to the first bracket, the clamping end stops at the bottom of the corresponding pivotal component.

In the quick-foldable tripod of the present invention, the first bracket part also has two locking parts for respectively locking the handle part on the first stand rod.

In the quick-foldable tripod of the present invention, the first bracket part also has a handle part connected between the first frame rods and opposite to the bottom frame part.

The beneficial effect of the present invention is that: when operating the bearing part, the second support part can be expanded relative to the first support part by utilizing the linkage between the first support unit and the second support unit, and the tripod is in a In the unfolded state, or the second bracket part can be folded relative to the first bracket part, so that the tripod is in a folded state, and the tripod can be rapidly unfolded and folded.

Description of drawings

Fig. 1 is a perspective view of a rapidly collapsible tripod in a preferred embodiment of the present invention;

Fig. 2 is the plan combination view of this preferred embodiment, illustrates that this tripod is in an erect state;

Fig. 3 is a schematic diagram of the folding operation of the preferred embodiment;

Fig. 4 is a schematic diagram of the completion of folding in the preferred embodiment;

Fig. 5 is a partially enlarged schematic diagram of Fig. 4;

Fig. 6 is a schematic diagram of the erecting operation of the preferred embodiment;

Fig. 7 is a partially enlarged schematic diagram of Fig. 6;

Fig. 8 is a schematic diagram of setting of a locking unit of the preferred embodiment;

FIG. 9 is a schematic cross-sectional view taken along the line IX-IX in FIG. 8 .

Detailed ways

Embodiments of the present invention are described in detail below in conjunction with accompanying drawings:

As shown in Figures 1 and 2, a quick-foldable tripod in a preferred embodiment of the present invention includes a carrier 10, a pair of pivotal joints 20, a first bracket 30, and a first support unit 40 , a second bracket 50 , a second support unit 60 , an operation unit 70 and a locking unit 80 .

The supporting member 10 is in the shape of a rectangular frame for mounting and fixing a small processing tool 100 , and has a first side portion 11 and a second side portion 12 opposite to the first side portion 11 .

The pivoting components 20 are in the shape of triangular plates and are respectively pivoted on the first side portion 11 of the supporting component 10 .

The first support member 30 has a pair of first rods 31 pivotally connected to the pivotal member 20 respectively, and a handle engaged between the first rods 31 and corresponding to the first side portion 11 part 32, a bottom frame part 33 opposite to the handle part 32 and connected to the first frame bar 31, and two turning parts 34 respectively arranged between the first frame bar 31 and the bottom frame part 33 , two locking pieces 35 respectively mounted on the turning portions 34 and a shaft 313 connected between the turning portions 34 . Each of the first frame rods 31 has a pair of pivot plates 311 located in the middle section and a pair of positioning portions 312 arranged on the pivot plates 311 and in the shape of an inclined surface. The first frame rods 31 and the bottom frame portion 33 is arranged vertically. As shown in FIG. 3 , the handle portion 32 is L-shaped in front view and is symmetrical and opposite to the bottom frame portion 33 , and the turning portion 34 is curved. The first bracket part 30 also has two locking parts 36 respectively capable of locking the handle part 32 on the first pole 31 .

The first support unit 40 has two first support rods 41 respectively pivotally connected between the second side portion 12 and the first frame rod 31 .

The second bracket member 50 has a pair of second frame rods 51 pivotally connected to the pivot plate 311 respectively, and a pair of clips fixed on the second frame rods 51 and approaching the pivot plate 311. The plate 52 and a pair of rollers 53 pivotally mounted on the second frame bar 51 respectively, each of the second frame bars 51 has a terminal portion 511 corresponding to the bottom frame portion 311 and for the roller wheels 53 to be mounted on, Each of the clamping plates 52 has a planar stop portion 521 corresponding to the positioning portion 312 .

The second support unit 60 has two second support rods 61 pivotally connected between the pivotal member 20 and the clamping plate 52 respectively, and can make the second support member 50 relative to the first support member 30 positioning.

The operating unit 70 is mounted on the first bracket member 30 and has a pedal 71, a push rod 72 spaced apart from the pedal 71 and pivotally mounted on one of the first brackets 31, and a push rod 72 pivotally connected to the first frame 31. A connecting rod 73 and a return spring 74 between the pedal rod 71 and the push rod 72 . The pedal 71 has a pivoting portion 711 that can pivot relative to the first frame 31 and is pivotally arranged on the shaft 313 and a pedaling portion 712 opposite to the pivoting portion 711 , the push rod 72 Has a first end 721 and a second end 722 opposite to the first end 721 and corresponding to the carrier 10, the connecting rod 73 has a pivotally connected to the pivoting portion 711 and the stepping portion 712 Between the first pivoting part 731 and a second pivoting part 732 pivotally connected to the first end 721, the return spring 74 is connected between the stepping part 712 and the first end 721, which The elastic force keeps the stepping portion 712 and the second end portion 722 relatively close to each other.

With reference to FIG. 9 , the locking unit 80 is installed on the first side 11 of the carrier 10 , and has a sleeve 81 fixed at the bottom of the first side 11 , and a sleeve 81 pierced through the sleeve 81 . The clamping rod 82 and a spring 83 sleeved between the sleeve 81 and the clamping rod 82, the clamping rod 82 has a clamping end 821 corresponding to one of the pivot members 20 and a The clamping end 821 is opposite and protrudes from the pull end 822 outside the sleeve 81 .

As shown in Figure 2, when the tripod is in the erected state, the first bracket 30 is inclined relative to the ground, the second bracket 50 is deployed relative to the first bracket 30, and the carrier 10 is approximately Parallel to the ground, and make the second side 12 away from the first bracket 30, the end portion 511 of the second bracket 50 is also away from the bottom frame 33, at this time, the second support unit 60 can Positioning the second bracket part 50 relative to the first bracket part 30, that is, using the second support rod 61 to pull the clamping plate 52, the stopper part 521 can be abutted against the positioning position. part 312, so that the first bracket part 30 and the second bracket part 50 are kept at an angle, and the turning part 34 of the first bracket part 30 corresponds to the ground, and is stabilized by the locking part 35 It is positioned on the ground to ensure that the overall structure of the tripod is in an erected state and is stable.

At this time, when the second support member 50 is deployed relative to the first support member 30, the clamping end 821 of the locking unit 80 stops on the bottom of the corresponding pivot member 20, which can further ensure that no Misoperation.

1 and 2, if the tripod is to be moved, the operator only needs to press down the handle part 32 slightly, and the locking member 35 is lifted off the ground immediately, and the roller 53 is used to move the tripod. The whole tripod can be easily dragged and moved.

As shown in the imaginary lines of Fig. 3, Fig. 4 and Fig. 9, when the operator wants to fold, the operator first pulls the pull end 822 of the clamping rod 82, so that the clamping end 821 is released from the corresponding pivot. The bottom of the connecting piece 20 is moved out, and the operator lifts up the handle part 32 of the first bracket part 30, the first bracket part 30 swings with the turning part 34 as a fulcrum, and the second bracket part 50 is gradually opposite to each other. Collapse the first bracket part 30, and make the end part 511 gradually approach the bottom frame part 33, and use the second bracket part 50 to pull the second support unit 60, and the second support unit 60 pulls The pivoting member 20 and the pivoting member 20 in turn pull the carrier 10, and the carrier 10 links the first supporting unit 40, so that the second side 12 of the carrier 10 gradually approaches the The first support member 30, until the stand as shown in FIG. 4 is in a folded state, the second side portion 12 of the bearing member 10 approaches the first support member 30, and the stop portion 521 is away from the positioning portion 312.

Again as shown in Figure 4 and Figure 5, at this moment, the first bracket part 30 can be stably positioned on the ground by utilizing the base frame part 33, and the first frame bar 31 and the handle part 32 are kept upright, The bearing part 10 is closely attached to one side of the first bracket part 30, and the second bracket part 50 is also folded flat on the other side of the first bracket part 30, so that the overall volume of the tripod becomes smaller, Save storage space. In addition, the first bracket part 30 can detachably lock the handle part 32 on the first rack rod 31 by using the locking part 36 , which is beneficial to reduce the volume during packaging.

As shown in Figures 6 and 7, when the folded state of Figures 4 and 5 is intended to be operated into the unfolded state of Figures 1 and 2, the operator can step on the foot bar 71 of the operating unit 70. part 712, and make the pedal rod 71 pivot with the shaft rod 313 (at this time, the return spring 74 is stretched and contains the elastic force of release), and stepping on the pedal part 712 can be driven by the connecting rod 73 The push rod 72, and the second end 722 of the push rod 72 can push the first support unit 40 outward, and make the second end 722 push the second side 12 of the carrier 10 away from In the first support member 30, the first support unit 40 is used to drive the carrier 10, the carrier 10 is used to drive the pivot member 20, and the pivot member 20 is used to drive the second support unit 60, And cooperate with the operator to push down the handle part 32 , then the first bracket part 30 can be gradually tilted until it is unfolded into the erected state shown in FIG. 1 and FIG. 2 .

After the above-mentioned operator steps on the pedal 71 of the operating unit 70, the return spring 74 will rebound, and the pedal 71, the push rod 72 and the connecting rod 73 will return to the state shown in FIG. 4 and FIG. 5 .

Therefore, the structure of the present invention is simple, and the folding and unfolding can be completed with simple operation actions, and the operation is quite convenient and fast.

Claims (10)

1. can the foot rest of Quick folding, comprise a bearing part, the articulated part be hubbed on for a pair on this bearing part, one be articulated in the first frame member on described articulated part, one be articulated in the first support unit between this bearing part and this first frame member, one be articulated in the second frame member on this first frame member and second support unit be articulated between described articulated part and this second frame member; The feature of this foot rest is:

This bearing part, has first sidepiece and second sidepiece contrary with this first sidepiece;

Described articulated part, is hubbed on the first sidepiece of this bearing part respectively;

This first frame member, has and is articulated in the first hack lever on described articulated part and a undercarriage portion linked with described first hack lever for a pair respectively;

This first support unit, is articulated between this second sidepiece and described first hack lever;

This second frame member, has the second hack lever be articulated in respectively for a pair on described first hack lever, and described second hack lever respectively has the terminal part that corresponds to this undercarriage portion;

This second support unit, is articulated between described articulated part and described second hack lever, and this second frame member can be made to locate relative to this first frame member;

Wherein, when this foot rest founds state in exhibition, this second frame member launches relative to this first frame member, second sidepiece of this bearing part is away from this first frame member, and this terminal part is away from this undercarriage portion, and this second support unit can make this second frame member locate relative to this first frame member, when this foot rest is folding state, this second frame member folds relative to this first frame member, and the second sidepiece of this bearing part levels off to this first frame member, and this terminal part levels off to this undercarriage portion.

2. as claimed in claim 1 can the foot rest of Quick folding, it is characterized in that: also comprise an operating unit be arranged on this first frame member, this operating unit has a treadle, one and this treadle interval are arranged and the push rod be hubbed on one of them first hack lever and a connecting rod be articulated between this treadle and this push rod, this treadle has one can relative to the pivot part of described first hack lever pivotable and a stampeding section contrary with this pivot part, this push rod there is a first end and one contrary with this first end and correspond to the second end of this bearing part, this connecting rod has first pivot be articulated between this pivot part and this stampeding section and moves portion and second pivot being articulated in this first end moves portion, second sidepiece of this bearing part level off to this first frame member time, step on this stampeding section and can affect this push rod by this connecting rod, and the second sidepiece making this second end push away this bearing part of pulling is away from this first frame member.

3. as claimed in claim 2 can the foot rest of Quick folding, it is characterized in that: this operating unit also has a returning spring, this returning spring is attached between this stampeding section and this first end, and its elastic force makes this stampeding section keep the trend of relative convergence with this second end.

4. as claimed in claim 1 can the foot rest of Quick folding, it is characterized in that: this second frame member also has the roller be hubbed at respectively on described terminal part for a pair.

5. as claimed in claim 4 can the foot rest of Quick folding, it is characterized in that: described first hack lever of this first frame member is connected in vertical with this undercarriage portion, this first frame member also has two turning points be located at respectively between described first hack lever and this undercarriage portion, when this second frame member launches relative to this first frame member, described turning point corresponds to ground.

6. as claimed in claim 5 can the foot rest of Quick folding, it is characterized in that: this first frame member also has two engagement devices be installed on respectively on described turning point.

7. as claimed in claim 1 can the foot rest of Quick folding, it is characterized in that: described first hack lever of this first frame member also respectively has the pin plate being located at stage casing for a pair, described pin plate respectively has a location division in inclined plane type, described second hack lever of this second frame member also respectively has and levels off to described pin plate and for the clamp of this second support unit pivot joint for a pair, described clamp respectively has one in plane stop section, when this foot rest founds state in exhibition, this stop section is only supported in this location division, when this foot rest is folding state, this stop section is away from this location division.

8. as claimed in claim 1 can the foot rest of Quick folding, it is characterized in that: also comprise a locking unit be arranged on the first sidepiece of this bearing part, this locking unit has the sleeve pipe that is installed in this first sidepiece, one is located in blocking bar in this sleeve pipe and a spring be set between this sleeve pipe and this blocking bar, this blocking bar has the blocking end of one of them articulated part of correspondence and and projection contrary with this blocking end and draws in this jacket exterior end of pulling, when this second frame member launches relative to this first frame member, this blocking end block bottom corresponding articulated part on.

9. as claimed in claim 1 can the foot rest of Quick folding, it is characterized in that: this first frame member also has one hand, and two can make this handle portion lock the lock-joining part on described first hack lever respectively.

10. as claimed in claim 1 can the foot rest of Quick folding, it is characterized in that: this first frame member also has one and to be engaged between described first hack lever and the handle portion that arrange contrary to this undercarriage portion.