CN215060974U

CN215060974U - Expansion assembly

Info

Publication number: CN215060974U
Application number: CN202120663033.XU
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: 2021-12-07
Anticipated expiration: 2031-03-31

Abstract

The utility model belongs to the technical field of the mechanical structure technique and specifically relates to indicate a tight subassembly expands, it 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 of extrusion cover piece slides the butt, the extrusion cover piece is used for extrudeing the tight piece that expands and makes its outside bloated and open, the outer wall of the tight piece that expands is provided with the friction pad piece. The utility model discloses novel structure, design benefit, the operation of being convenient for, the structure is reliable, stable, and is difficult not hard up, mainly is applied to the supporting leg of the unipod among the photographic equipment and the supporting leg of tripod, can overcome the tradition and can only lead to awkward problem through the complicated structure of operations such as screw thread and pulling knot, simple structure is novel.

Description

Expansion assembly

Technical Field

The utility model belongs to the technical field of mechanical structure technique and specifically relates to indicate a tight subassembly expands.

Background

Unipods and tripods are common photographic equipment, and tripods generally comprise three telescopic supporting legs; the unipod generally comprises a telescopic rod body and a platform for mounting photographic equipment, shooting is carried out through unipod support, the unipod needs to be held by hands or foreign objects during shooting, 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 unipod supporting 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 the flexible leg of general unipod telescopic leg and tripod is mostly the screw thread and pulls the knot fixed, and multiple operation is inconvenient, and current unipod extending structure operation is simple convenient inadequately.

Disclosure of Invention

The utility model discloses problem to prior art provides an bloated tight subassembly, novel structure, design benefit, the operation of being convenient for, the structure is reliable, stable, and is difficult not hard up, mainly is applied to the supporting leg of the unipod among the photographic equipment and the supporting leg of tripod, can overcome the tradition and can only lead to awkward problem through the screw thread and pull the structure of operating complicacy such as detaining, and structural cost is lower.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a pair of tight subassembly expands, including 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 of extrusion cover piece slides the butt, 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 the friction pad piece.

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 lower extreme of transmission seat is provided with screw thread pole portion, the upper end of fixing base is provided with the cover axial region, the inner wall of cover axial region is provided with the internal thread with screw thread pole portion cooperation spiro union.

The utility model has the advantages that:

the utility model discloses novel structure, design benefit, the operation of being convenient for, the structure is reliable, stable, and is difficult not hard up, mainly is applied to the supporting leg of the unipod among the photographic equipment and the supporting leg of tripod, can overcome the tradition and can only lead to awkward problem through the complicated structure of operations such as screw thread and pulling knot, and structural cost is lower.

Drawings

Fig. 1 is the structural schematic diagram of the expansion assembly of the present invention.

Fig. 2 is an exploded view of the expansion assembly of the present invention.

Fig. 3 is a schematic structural view of the driving seat of the present invention.

Fig. 4 is a schematic structural diagram of the extrusion sleeve of the present invention.

Fig. 5 is a schematic structural view of the expansion block of the present invention.

Fig. 6 is the utility model discloses install the structure schematic diagram at external multistage telescopic support leg.

Fig. 7 is the utility model discloses install the structure of external multistage telescopic support leg and break out view.

The reference numerals in fig. 1 to 7 include:

1. a plurality of sections of telescopic 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 threaded shank portion; 21. a sleeve shaft portion; 22. an internal thread.

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 will be described in detail with reference to the accompanying drawings.

The utility model provides a tight subassembly expands, as shown in fig. 1 to 5, including driving seat 5, extrusion cover piece 6 and

fixing base

7, 7 screw threads on the fixing base cup joint in the periphery of 5 lower extremes of driving seat, the equidistant distribution in periphery of fixing base 7 has a plurality of tight pieces 8 that expand, and the periphery cover of a plurality of tight pieces 8 that expand is equipped with elasticity

external member

9, and 6 movable sleeves of extrusion cover piece are located the periphery of driving seat 5, the top of driving seat 5 is provided with presses platform 10, press platform 10 with the top slip butt of extrusion cover piece 6, extrusion cover piece 6 is used for extrudeing tight piece 8 that expand and makes its outside bloated open, the outer wall of tight piece 8 that expands is provided with friction pad 11, friction pad 11 can be rubber gasket, plastic gasket, abrasionproof cloth gasket etc. do not specially limit here. Specifically, when the external control assembly 3 drives the expansion assembly 2 to act, and when the expansion assembly 2 performs expansion action, the external transmission rod 4 is connected with the transmission seat 5, the fixed seat 7 is fixed with the external multi-section telescopic supporting leg 1 (such as a supporting leg of a unipod and a supporting leg of a tripod), when the transmission rod 4 rotates in one direction, the transmission seat 5 is driven 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 a friction gasket 11 on the outer wall of the expansion block 8 is utilized to be in friction pressing with the inner wall of the supporting leg to realize a friction locking position, wherein the elastic sleeve 9 can prevent the expansion block 8 from loosening, and also provides an elastic working space and capacity for the expansion block 8, and the structure design is ingenious and reliable; when the position is required to be released to facilitate the movement of the external multi-section telescopic supporting leg 1, the control assembly 3 is operated, the external transmission rod 4 rotates in 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, the expansion block 8 is folded under the action of the elastic sleeve 9, the position release is realized, and the position of the external multi-section telescopic supporting leg 1 is convenient to adjust; the utility model discloses novel structure, design benefit, the operation of being convenient for, the structure is reliable, stable, and is difficult not hard up, mainly is applied to the supporting leg of the unipod among the photographic equipment and the supporting leg of tripod, can overcome the tradition and can only lead to awkward problem through the complicated structure of operations such as screw thread and pulling knot, and structural cost is lower.

This embodiment a tight subassembly 2 expands, the lower edge periphery of extrusion sleeve piece 6 is provided with a plurality of first extrusion inclined planes 12 at the equidistant, first extrusion inclined plane 12 and the tight piece 8 one-to-one that expands.

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.

The tight subassembly 2 that expands of this embodiment, the up end of extrusion sleeve piece 6 is provided with annular groove 16 on, the annular groove internal rotation is provided with a plurality of balls 17, the lower extreme of pressing platform 10 is full to be provided with annular groove 18 down, goes up annular groove 16 and lower annular groove 18 and corresponds the setting, a plurality of balls 17 and the butt that slides of lower annular groove 18. Specifically, the arrangement can ensure that the action of the pressing platform 10 when rotating and pressing the extrusion sleeve block 6 is smooth, reduce the abrasion and ensure the reliable structure.

In the present embodiment, the expansion assembly 2, the outer wall of the expansion block 8 is provided with a receiving groove 19 for receiving 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.

The tight subassembly 2 that expands of this embodiment, holding recess 19 is provided with two, and two holding recesses 19 are located the upper end and the lower extreme of the tight piece 8 outer wall that expands respectively, and elasticity external member 9 is provided with two, and elasticity external member 9 is the elastic ring. Specifically, the two elastic sleeves 9 are arranged, so that the furling effect of the expansion block 8 is ensured, and the structure is reliable.

The tight subassembly 2 that expands of this embodiment, the lower extreme of driving seat 5 is provided with screw rod portion 20, the upper end of fixing base 7 is provided with cover axial region 21, the inner wall of cover axial region 21 is provided with the internal thread 22 with screw rod portion 20 cooperation spiro union. Specifically, the above arrangement facilitates the threaded connection of the transmission seat 5 and the fixed seat 7.

As shown in fig. 6 to 7, the present invention is respectively related to the external control assembly, the external multi-section telescopic support leg, and the structural schematic diagram and the structural exploded view thereof, so that the examiner can understand the present invention. The multi-segment telescopic support leg 1 comprises 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 multi-segment telescopic support leg 1;

the multi-section telescopic supporting leg 1 further comprises a tightening assembly 2 arranged on the second leg section 1b and the third leg section 1c, and the tightening assembly 2 can be used for locking and releasing the position by tightening and contracting;

the multi-section telescopic supporting leg 1 also comprises a control component 3 arranged on the first leg section 1a, and the control component 3 is used for controlling the expansion component 2 to expand or contract;

the multi-section telescopic supporting leg 1 further comprises a transmission rod 4, and the control assembly 3 is in transmission connection with the expansion assembly 2 through the transmission rod 4.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. An expansion assembly, comprising: including 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 in 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 division, the outer wall of the tight piece that expands is provided with friction pad.

2. An expansion assembly as claimed in claim 1, wherein: the 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.

3. An expansion assembly as claimed in claim 1, wherein: 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.

4. An expansion assembly as claimed in claim 1, wherein: the upper end and the lower extreme of bloated compact heap inside wall all are provided with the butt inclined plane.

5. An expansion assembly as claimed in claim 1, 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 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.

6. An expansion assembly as claimed in claim 1, wherein: the outer wall of the expansion block is provided with accommodating grooves for accommodating the elastic sleeve.

7. An expansion assembly as claimed in claim 6, 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.

8. An expansion assembly as claimed in claim 1, wherein: the lower extreme of driving seat is provided with screw rod portion, the upper end of fixing base is provided with the cover axial region, the inner wall of cover axial region is provided with the internal thread with screw rod portion cooperation spiro union.