CN113090903B

CN113090903B - Extensible supporting leg and unipod

Info

Publication number: CN113090903B
Application number: CN202110345227.XA
Authority: CN
Inventors: 梁志豪; 肖爽
Original assignee: Dongguan Yangcong Network Technology Co ltd
Current assignee: Dongguan Yangcong Network Technology Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-11-15
Anticipated expiration: 2041-03-31
Also published as: CN113090903A

Abstract

The present invention relates to the field of camera equipment technology, and more particularly to an extendable support leg and monopod including two or more leg sections, each leg section being axially movable relative to one or more of the other leg sections to lengthen or shorten the support leg; the supporting leg further comprises a tensioning assembly mounted on the second leg section and the third leg section, and the tensioning assembly can be used for position locking and position releasing through tensioning and contraction; the supporting leg further comprises a control assembly arranged on the first leg section, and the control assembly is used for controlling the expansion assembly to expand or contract; the supporting leg still includes the transfer line, control assembly through the transfer line with the tight subassembly transmission of expanding is connected. The invention realizes adjustment and locking, has novel structure, and is simple, convenient and quick to operate compared with the traditional mode that the unipod supporting leg needs to gradually lock a plurality of joints and loosen the joints to lock and release positions; is favorable for beauty.

Description

Extensible supporting leg and unipod

Technical Field

The invention relates to the technical field of photographic equipment, in particular to an extensible supporting leg and a unipod.

Background

The unipod common photographic equipment generally comprises a telescopic rod body and a platform for mounting the photographic equipment, shooting is carried out through unipod support, the shooting needs to be supported by hands or foreign objects, and a connecting structure is arranged between the unipod and a small tripod to facilitate the independent support of the unipod, so that the unipod can be stably supported by a tripod support base; in the existing photography, the unipod is a very common photographic apparatus, and has the advantages of more convenient carrying, more back-and-forth movement and the like compared with a tripod, and the unipod is favored by people because of more reduced constraint and lighter weight compared with the tripod; but general unipod extending structure all need progressively lock a plurality of joints, loosen a plurality of joints, and multiple operation is inconvenient, and current unipod extending structure is complicated complex operation.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the extensible supporting leg and the unipod, which realizes adjustment and locking, has novel structure and ingenious design, and is simple, convenient and quick to operate compared with the traditional mode that a plurality of joints are required to be gradually locked and loosened and inconvenient to operate for a plurality of times; is favorable for beauty.

In order to solve the technical problems, the invention adopts the following technical scheme:

the present invention also provides an extendable support leg comprising two or more leg segments, each leg segment being axially movable relative to one or more of the other leg segments to lengthen or shorten the support leg;

the supporting leg further comprises a tensioning assembly arranged on the second leg section and the third leg section, and the tensioning assembly can perform position locking and position releasing through tensioning and contraction;

the supporting leg further comprises a control assembly arranged on the first leg section, and the control assembly is used for controlling the expansion assembly to expand or contract;

the supporting leg still includes the transfer line, control assembly pass through the transfer line with the tight subassembly transmission of expanding is connected.

Wherein, tight subassembly that expands includes driving seat, extrusion cover piece and fixing base, the fixing base screw thread cup joint in the periphery of driving seat lower extreme, the equidistant distribution of periphery of fixing base has a plurality of tight pieces that expand, and the periphery cover of a plurality of tight pieces that expand is equipped with the elasticity external member, and extrusion cover piece movable sleeve is located the periphery of driving seat, the top of driving seat is provided with presses the platform, press the platform with the top slip butt of extrusion cover piece, the extrusion cover piece is used for extrudeing the tight piece that expands and makes its outside bloated, the outer wall of the tight piece that expands is provided with friction pad.

The outer periphery of the lower edge of the extrusion sleeve block is provided with a plurality of first extrusion inclined planes at equal intervals, and the first extrusion inclined planes correspond to the expansion blocks one to one.

The outer edge of the lower end of the transmission seat is provided with a ring table, a plurality of second extrusion inclined planes are arranged on the periphery of the upper edge of the ring table at equal intervals, and the second extrusion inclined planes correspond to the expansion blocks one to one.

Wherein, the upper end and the lower extreme of bloated compact heap inside wall all are provided with the butt inclined plane.

Wherein, the up end of extrusion cover piece is provided with annular groove on, the annular groove internal rotation is provided with a plurality of balls, the lower extreme of pressing the platform is full to be provided with annular groove down, goes up annular groove and corresponds the setting with annular groove down, a plurality of balls and the sliding butt of annular groove down.

The outer wall of the expansion block is provided with an accommodating groove for accommodating the elastic sleeve.

The two accommodating grooves are respectively located at the upper end and the lower end of the outer wall of the expansion block, and the two elastic sleeves are elastic rings.

The control assembly comprises a control base, a control shaft body, a control bevel gear and a hand-waving piece, wherein the control shaft body is rotatably arranged on the control base;

the top end of the transmission rod is provided with a transmission bevel gear which is in meshing transmission connection with the control bevel gear;

the swing arm is positioned on the periphery of the control base and provided with a positioning assembly and a first accommodating cavity for accommodating the positioning assembly, the positioning assembly comprises a first spring and a steel ball, two ends of the first spring are respectively connected to the inner wall of the first accommodating cavity and the outer wall of the steel ball, the front end of the steel ball protrudes out of the first accommodating cavity, the steel ball is in sliding butt joint with the outer wall of the control base, and the outer wall of the control base is also provided with a clamping groove in matched clamping connection with the steel ball; the outer wall of control base still is provided with second holding chamber, second holding chamber is installed and is used for carrying out spacing subassembly to the hand pendulum, spacing subassembly includes second spring and spacing lug, the both ends of second spring are connected respectively in the inner wall in second holding chamber and the one end of spacing lug, and the other end of spacing lug stretches out suddenly the second holding chamber and be used for with the hand pendulum butt carries on spacingly to the hand pendulum.

The invention also provides a unipod which comprises a holder, a supporting seat and an extensible supporting leg, wherein the holder is arranged at the top end of the first leg section, and the supporting seat is arranged at the bottom of the third leg section.

The invention has the beneficial effects that:

the unipod supporting leg realizes adjustment and locking, is novel in structure and ingenious in design, and is simple, convenient and quick to operate compared with the traditional mode that multiple joints need to be gradually locked and loosened to lock and release positions; is favorable for beauty.

Drawings

FIG. 1 is a schematic view of an extendable support leg according to the present invention.

FIG. 2 is an exploded view of an extendable support leg of the present invention.

Fig. 3 is a schematic structural view of the cooperation of the control assembly and the transmission rod of the present invention.

Fig. 4 is an exploded view of the structure of fig. 3.

Fig. 5 is an exploded view from another perspective of fig. 3.

FIG. 6 is a schematic view of the expansion assembly of the present invention.

FIG. 7 is an exploded view of the expansion assembly of the present invention.

Fig. 8 is a schematic structural diagram of the transmission seat of the present invention.

Fig. 9 is a schematic view of the construction of the extrusion nest block of the present invention.

Fig. 10 is a schematic structural view of the expansion block of the present invention.

Fig. 11 is a schematic structural view of a unipod according to the present invention.

The reference numerals in fig. 1 to 11 include:

1. supporting legs; 1a, a first leg section; 1b, a second leg section; 1c, a third leg section; 2. expanding the assembly; 3. a control component; 4. a transmission rod; 5. a transmission seat; 6. extruding the sleeve block; 7. a fixed seat; 8. expanding and tightening blocks; 9. an elastic sleeve member; 10. pressing the table; 11. a rubbing pad; 12. a first extrusion ramp; 13. a ring platform; 14. a second extrusion ramp; 15. abutting against the inclined plane; 16. an upper annular groove; 17. a ball bearing; 18. a lower annular groove; 19. an accommodating groove; 20. a control base; 21. a control shaft body; 22. a control bevel gear; 23. swinging the hands; 24. a transmission bevel gear; 25. a first accommodating cavity; 26. a first spring; 27. steel balls; 28. clamping the groove; 29. a second accommodating cavity; 30. a second spring; 31. a limiting bump; 32. a holder; 33. and (4) supporting the base.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.

An extendable support leg, as shown in figures 1 to 10, comprising two or

more leg segments

1a, 1b, 1c, each

leg segment

1a, 1b, 1c being axially moveable relative to one or more of the

other leg segments

1a, 1b, 1c to lengthen or shorten the support leg 1; the supporting leg 1 further comprises a tensioning assembly 2 arranged on the second leg section 1b and the third leg section 1c, and the tensioning assembly 2 can be used for position locking and position releasing through tensioning and contraction;

the supporting leg 1 further comprises a control assembly 3 arranged on the first leg section 1a, and the control assembly 3 is used for controlling the expansion assembly 2 to expand or contract;

the supporting leg 1 still includes transfer line 4, control assembly 3 through transfer line 4 with tight subassembly 2 transmission connection expands.

Specifically, the control assembly 3 is operated to drive the transmission rod 4 to rotate, and the expansion assembly 2 is driven to expand or contract through the transmission rod 4 to realize position locking and releasing; each leg section can axially move relative to one or more of other leg sections to extend or shorten the supporting leg 1, in the embodiment, the control assembly 3 is installed on the first leg section 1a, the second leg section 1b and the third leg section 1c are both provided with the expansion assembly 2, the second leg section 1b is slidably sleeved in the first leg section 1a, the third leg section 1c is slidably sleeved in the second leg section 1b, the control assembly 3 is linked with the expansion assembly 2 through the transmission rod 4, when the expansion assembly 2 contracts, the second leg section 1b can axially slide relative to the first leg section 1a, the third leg section 1c can axially slide relative to the second leg section 1b to adjust the length of the supporting leg 1, after the length is adjusted, the transmission rod 4 is driven by the control assembly 3 to expand the expansion assembly 2 and tightly push the inner wall of the first leg section 1a and the inner wall of the second leg section 1b, so that the second leg section 1b can be expanded and tightly pushed against the inner wall of the first leg section 1a and the inner wall of the second leg section 1b, the joint can be adjusted in a novel manner, and the joint can be released in a quick and convenient manner relative to the conventional locking structure, and the joint locking structure can be released; is favorable for beauty.

In the extendable supporting leg 1 of this embodiment, the expansion assembly 2 includes a transmission seat 5, an extrusion sleeve block 6 and a fixing seat 7, the fixing seat 7 is screwed and sleeved on the periphery of the lower end of the transmission seat 5, a plurality of expansion blocks 8 are distributed on the periphery of the fixing seat 7 at equal intervals, an elastic sleeve 9 is sleeved on the peripheries of the expansion blocks 8, the extrusion sleeve block 6 is movably sleeved on the periphery of the transmission seat 5, a pressing table 10 is arranged at the top end of the transmission seat 5, the pressing table 10 is slidably abutted to the top end of the extrusion sleeve block 6, the extrusion sleeve block 6 is used for extruding the expansion blocks 8 to expand the expansion blocks outwards, and a friction gasket 11 is arranged on the outer wall of the expansion blocks 8; the friction pad 11 may be a rubber pad, a plastic pad, an abrasion-proof cloth pad, etc., and is not limited herein. Specifically, when the control assembly 3 drives the expansion assembly 2 to act, and when the expansion assembly 2 opens, the transmission rod 4 rotates in one direction to drive the transmission seat 5 to rotate relative to the fixed seat 7, the pressing table 10 moves downwards to push the extrusion sleeve block 6 to move downwards, the extrusion sleeve block 6 extrudes the expansion block 8 to expand outwards, and the friction gasket 11 on the outer wall of the expansion block 8 is in friction pressing with the inner wall of the first leg section 1a and the inner wall of the second leg section 1b to realize a friction locking position, wherein the elastic sleeve 9 can prevent the expansion block 8 from loosening, and also provides elastic working space and capacity for the expansion block 8, and the structural design is ingenious and reliable; when the position needs to be released to facilitate the movement of the leg section, the control assembly 3 is operated, the transmission rod 4 rotates towards the other direction to drive the transmission seat 5 to move upwards relative to the fixed seat 7, the extrusion sleeve block 6 is separated from the expansion block 8, and the expansion block 8 is folded under the action of the elastic sleeve 9, so that the position release is realized, and the position of the leg section is conveniently adjusted.

In the extendable supporting leg 1 of the present embodiment, the periphery of the lower edge of the extrusion sleeve block 6 is provided with a plurality of first extrusion inclined planes 12 at equal intervals, and the first extrusion inclined planes 12 correspond to the expansion blocks 8 one to one.

Wherein, the lower extreme outer fringe of transmission seat 5 is provided with ring platform 13, the upper edge periphery of ring platform 13 is provided with a plurality of second extrusion inclined planes 14 at the equidistant, second extrusion inclined plane 14 and bloated tight piece 8 one-to-one.

Wherein, the upper end and the lower extreme of 8 inside walls of bloated compact heap all are provided with butt inclined plane 15.

Specifically, first extrusion inclined plane 12 and the butt inclined plane 15 cooperation slip butt of 8 upper ends of bloated tight piece, second extrusion inclined plane 14 and the butt inclined plane 15 cooperation slip butt of 8 lower ends of bloated tight piece, conveniently support to pressing and make it expand tight piece 8 to bloated.

In the extendable supporting leg 1 of the present embodiment, the upper end surface of the extrusion sleeve 6 is provided with an upper annular groove 16, a plurality of balls 17 are rotatably disposed in the annular groove, the lower end of the pressing table 10 is fully provided with a lower annular groove 18, the upper annular groove 16 and the lower annular groove 18 are correspondingly disposed, and the plurality of balls 17 and the lower annular groove 18 are slidably abutted. Specifically, the arrangement can ensure that the pressing platform 10 can smoothly rotate and press the extrusion sleeve block 6, reduce abrasion and has a reliable structure.

In the extendable supporting leg 1 of this embodiment, the outer wall of the expansion block 8 is provided with an accommodating groove 19 for accommodating the elastic sleeve 9. Specifically, the accommodating groove 19 accommodates and limits the elastic sleeve 9, so that the elastic sleeve 9 is prevented from falling off, a limiting effect is achieved, and the elastic sleeve 9 can conveniently furl the expansion block 8.

In the extendable supporting leg 1 of the present embodiment, the two accommodating grooves 19 are provided, the two accommodating grooves 19 are respectively located at the upper end and the lower end of the outer wall of the expansion block 8, the number of the elastic sleeve members 9 is two, and the elastic sleeve members 9 are elastic rings. Specifically, the elastic sleeve 9 of the above-mentioned setting is provided with two, guarantees the effect of drawing in of bloated tight piece 8, and the structure is reliable.

In the extendable support leg 1 of the present embodiment, the control assembly 3 includes a control base 20, a control shaft 21 rotatably disposed on the control base 20, a control bevel gear 22 sleeved on the periphery of the control shaft 21, and a hand-piece 23 connected to the control shaft 21; the top end of the transmission rod 4 is provided with a transmission bevel gear 24 which is in meshing transmission connection with the control bevel gear 22; the transmission rod 4 is rotatably arranged on the control base 20;

the handle rocker 23 is located on the periphery of the control base 20, the handle rocker 23 is provided with a positioning assembly and a first accommodating cavity 25 for accommodating the positioning assembly, the positioning assembly comprises a first spring 26 and a steel ball 27, two ends of the first spring 26 are respectively connected to the inner wall of the first accommodating cavity 25 and the outer wall of the steel ball 27, the front end of the steel ball 27 protrudes out of the first accommodating cavity 25, the steel ball 27 is in sliding butt joint with the outer wall of the control base 20, and the outer wall of the control base 20 is further provided with a clamping groove 28 in matching clamping connection with the steel ball 27;

specifically, when the control assembly 3 works, an operator pulls the hand-piece 23 to drive the control shaft body 21 to rotate, and drives the transmission rod 4 to rotate under the matching transmission of the control bevel gear 22 and the transmission bevel gear 24, wherein the rotation direction of the transmission rod 4 is determined according to the swing direction of the hand-piece 23; the single or a plurality of expansion assemblies 2 can be controlled to expand and contract by independently operating the swing hand 23 conveniently, and the operation is simple; when the hand swing 23 is not opened, the steel ball 27 is in sliding abutting contact with the outer wall of the control base 20, and after the hand swing 23 is opened until the expansion assembly 2 expands, the steel ball 27 is clamped into the clamping groove 28 for positioning under the action of the first spring 26, so that the hand swing 23 is prevented from rotating, and the structure is reliable; the clamping groove 28 is preferably a semicircular groove; when the user operates the hand swing 23 to reset, the steel ball 27 is separated from the clamping groove 28.

Further, a second accommodating cavity 29 is further formed in the outer wall of the control base 20, a limiting assembly used for limiting the swing arm 23 is installed in the second accommodating cavity 29, the limiting assembly comprises a second spring 30 and a limiting protruding block 31, two ends of the second spring 30 are connected to the inner wall of the second accommodating cavity 29 and one end of the limiting protruding block 31 respectively, and the other end of the limiting protruding block 31 extends out of the second accommodating cavity 29 in a protruding mode and is used for being abutted to the swing arm 23 to limit the swing arm 23.

Specifically, when the hand 23 swings downwards until the lower end of the hand 23 abuts against the control base 20 or the first leg section 1a, at this time, under the elastic action of the second spring 30 and the structure of the limiting bump 31, the limiting bump 31 extends out of the second accommodating cavity 29 to prop the hand 23, so that the hand 23 is limited, the hand 23 can be locked, the hand 23 is prevented from being pulled by mistake or by external force, and the structure is reliable; when the hand swing 23 needs to be operated, the user only needs to press the limiting bump 31, the limiting bump 31 retracts into the second accommodating cavity 29 and gives way for the hand swing 23, and the hand swing 23 can rotate at will.

The invention also provides a unipod, as shown in fig. 11, comprising a tripod head 32, a support seat 33 and an extensible support leg 1, wherein the tripod head 32 is arranged at the top end of the first leg section 1a, and the support seat 33 is arranged at the bottom of the third leg section 1 c. Specifically, the supporting seat 33 can be a supporting seat 33 used by a unipod in the prior art, and the supporting seat 33 is provided with three detachable and foldable auxiliary legs which are uniformly distributed on the supporting seat 33, so that the bottom support of the unipod is changed into a tripod support, and the unipod can obtain the stability of a tripod; preferably, the head 32 is removably mounted on the control base 20, facilitating assembly.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims

1. An extendable support leg, comprising: comprising two or more leg sections, each leg section being axially movable relative to one or more of the other leg sections to lengthen or shorten the support leg;

the supporting leg further comprises a transmission rod, and the control assembly is in transmission connection with the expansion assembly through the transmission rod; the expansion assembly comprises a transmission seat, an extrusion sleeve block and a fixed seat, the fixed seat is in threaded sleeve joint with the periphery of the lower end of the transmission seat, a plurality of expansion blocks are distributed on the periphery of the fixed seat at equal intervals, an elastic sleeve is sleeved on the peripheries of the expansion blocks, the extrusion sleeve block is movably sleeved on the periphery of the transmission seat, a pressing table is arranged at the top end of the transmission seat and is in sliding butt joint with the top end of the extrusion sleeve block, the extrusion sleeve block is used for extruding the expansion blocks to expand the expansion blocks outwards, and friction gaskets are arranged on the outer walls of the expansion blocks;

the upper end and the lower end of the inner side wall of the expansion block are both provided with an abutting inclined plane;

the up end of extrusion cover piece is provided with annular groove on, the annular groove internal rotation is provided with a plurality of balls, the lower extreme of pressing the platform is full of and is provided with annular groove down, goes up annular groove and corresponds the setting with annular groove down, a plurality of balls and the sliding butt of lower annular groove.

2. An extendable support leg according to claim 1, wherein: the lower edge periphery of extrusion sleeve piece is provided with a plurality of first extrusion inclined planes at the equidistant, first extrusion inclined plane with expand tight piece one-to-one.

3. An extendable support leg according to claim 1, wherein: the lower extreme outer fringe of transmission seat is provided with the loop platform, the last reason periphery of loop platform is provided with a plurality of second extrusion inclined planes at the equidistant, and second extrusion inclined plane is with bloated compact piece one-to-one.

4. An extendable support leg according to claim 1, wherein: the outer wall of the expansion block is provided with accommodating grooves for accommodating the elastic sleeve.

5. An extendable support leg according to claim 4, wherein: the holding recess is provided with two, and two holding recesses are located the upper end and the lower extreme of bloated compact piece outer wall respectively, and the elasticity external member is provided with two, and the elasticity external member is the elastic ring.

6. An extendable support leg according to claim 1, wherein: the control assembly comprises a control base, a control shaft body rotatably arranged on the control base, a control bevel gear sleeved on the periphery of the control shaft body and a hand-piece connected with the control shaft body;

the top end of the transmission rod is provided with a transmission bevel gear which is in meshed transmission connection with the control bevel gear;

the swing arm is positioned on the periphery of the control base and provided with a positioning assembly and a first accommodating cavity for accommodating the positioning assembly, the positioning assembly comprises a first spring and a steel ball, two ends of the first spring are respectively connected to the inner wall of the first accommodating cavity and the outer wall of the steel ball, the front end of the steel ball protrudes out of the first accommodating cavity, the steel ball is in sliding butt joint with the outer wall of the control base, and the outer wall of the control base is also provided with a clamping groove in matched clamping connection with the steel ball;

the outer wall of control base still is provided with second holding chamber, second holding chamber is installed and is used for carrying out spacing subassembly to the hand pendulum, spacing subassembly includes second spring and spacing lug, the both ends of second spring are connected respectively in the inner wall in second holding chamber and the one end of spacing lug, and the other end of spacing lug stretches out suddenly the second holding chamber and be used for with the hand pendulum butt carries on spacingly to the hand pendulum.

7. A unipod which characterized in that: comprising a head mounted on the top end of a first leg section, a support base mounted on the bottom of a third leg section, and an extendable support leg according to any one of claims 1-6.