Pulling buckle locking structure, telescopic foot tube and camera support

Abstract

The utility model discloses a pull buckle locking structure, a telescopic foot tube and a camera support. The pull buckle locking structure comprises a locking ring, a pull buckle, a pull rod, a first rotating shaft, a second rotating shaft and a third rotating shaft. A front-back through locking groove is formed in the locking ring, a first rotating seat is arranged on one side of the locking groove, and a second rotating seat is arranged on the other side of the locking groove; one end of the pull buckle is connected with the first rotating seat through a first rotating shaft and is provided with an unlocking position and a locking position which can be switched mutually; one end of the pull rod is connected with one end of the pull buckle through a second rotating shaft, and the other end is connected with the first rotating seat through a third rotating shaft; by means of the structure, the operation convenience can be guaranteed, meanwhile, the abrasion condition is avoided, the pulling and buckling locking machine structure always keeps a good locking effect, and the use requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to photographic equipment field, especially a kind of buckle locking structure, telescopic leg pipe and photographic support. BACKGROUND

[0002] With the improvement of living standards, more and more people love photography, in order to pursue higher and more exquisite still or sports photography level, usually will adopt photographic support to support shooting equipment, and the photographic support is adjusted in height by telescopic leg pipe with multi-stage telescopic structure, and the unlocking mechanism of telescopic leg pipe is usually operated by buckle, which has the advantages of simple structure and convenient operation.

[0003] The existing buckle locking structure is based on cam principle, and the change of inner diameter of locking ring is realized by the stroke change of cam relative to rotation center during rotation, and finally the locking or unlocking of telescopic leg pipe is completed; since the leg pipe and cam are made of metal materials such as aluminum alloy, the buckle of this structure needs to place gasket in cam part to realize locking, and after unlocking and locking for many times, the gasket will be worn out, which will cause the locking force to decrease, and further cause the telescopic leg pipe to be difficult to maintain telescopic state; therefore, there is an urgent need for a buckle locking structure, telescopic leg pipe and photographic support to solve the above problems. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in prior art. To this end, the utility model provides a buckle locking structure, telescopic leg pipe and photographic support.

[0005] The technical scheme adopted by one embodiment of the utility model to solve its technical problem is as follows: a buckle locking structure, comprising a locking ring, a buckle, a pull rod, a first rotating shaft, a second rotating shaft and a third rotating shaft;

[0006] The locking ring is provided with a locking groove penetrating front and back, and the locking groove is provided with a first rotating seat on one side and a second rotating seat on the other side;

[0007] One end of the buckle is connected with the first rotating seat through the first rotating shaft and has an unlock position and a locking position which can be switched with each other;

[0008] One end of the pull rod is connected with one end of the buckle through the second rotating shaft, and the other end of the pull rod is connected with the first rotating seat through the third rotating shaft;

[0009] When the buckle is switched from the unlock position to the locking position, the first rotating seat and the second rotating seat are driven by the pull rod to move close to each other to reduce the inner diameter of the locking ring; or the first rotating seat and the second rotating seat can move away from each other when the buckle is switched from the locking position to the unlock position to increase the inner diameter of the locking ring.

[0010] As one of the preferred embodiments of the utility model, the avoiding groove is arranged on the first rotating seat and the second rotating seat to provide an avoiding space for the pull rod.

[0011] As one of the preferred embodiments of the utility model, the second rotating shaft is located outside the first rotating seat, so that the second rotating shaft moves outside the first rotating seat under the driving of the clasp.

[0012] As one of the preferred embodiments of the utility model, the rotating groove is arranged on the clasp, the first rotating seat is inserted into the rotating groove, the first rotating shaft comprises a first shaft body and a second shaft body, the first shaft body is arranged between the clasp and the first rotating seat from one side of the clasp, and the second shaft body is arranged between the clasp and the first rotating seat from the other side of the clasp.

[0013] A telescopic leg pipe comprises an inner pipe, an outer pipe and the clasp locking structure.

[0014] The end of the outer pipe is provided with a plurality of first deformation pieces, and the locking ring is arranged outside the first deformation pieces.

[0015] The inner pipe is axially movably arranged in the outer pipe.

[0016] When the clasp is switched from the unlocking position to the locking position, the inner diameter of the locking ring is reduced, the first deformation piece is pushed against the inner pipe by the locking ring, and the axial movement between the inner pipe and the outer pipe is limited; or when the clasp is switched from the locking position to the unlocking position, the inner diameter of the locking ring is increased, the first deformation piece is separated from the inner pipe, and the inner pipe can move axially relative to the outer pipe.

[0017] As one of the preferred embodiments of the utility model, the first deformation piece and the inner pipe are provided with a positioning sleeve, a plurality of second deformation pieces are arranged on the positioning sleeve and abut against the first deformation piece, and at least one second deformation piece is connected with the first deformation piece and the locking ring through a positioning structure.

[0018] As one of the preferred embodiments of the utility model, the positioning structure comprises a positioning block arranged on the second deformation piece, a first positioning hole is arranged on the first deformation piece, a second positioning hole is arranged on the locking ring, and the positioning block is inserted into the first positioning hole and the second positioning hole.

[0019] As one of the preferred embodiments of the utility model, the second positioning hole is close to the first rotating seat.

[0020] As one of the preferred embodiments of the utility model, a limiting ring is arranged on the positioning sleeve and abuts against the end of the first deformation piece, a limiting groove is arranged on the locking ring, and the limiting ring is inserted into the limiting groove.

[0021] A photography support comprises the telescopic leg pipe.

[0022] The utility model discloses a beneficial effect: a kind of buckle locking structure, telescopic foot pipe and photographic support, buckle locking structure includes locking ring, buckle, pull rod, first pivot, second pivot and third pivot;Locking ring is provided with the locking slot that passes through from front to back, the one side of locking slot is provided with first rotating seat, and the other side is provided with second rotating seat;One end of buckle is connected with first rotating seat by first pivot and has the unlock position and locking position that can be switched with each other;One end of pull rod is connected with one end of buckle by second pivot, and the other end of pull rod is connected with first rotating seat by third pivot;Buckle can be switched for locking position by pull rod drive first rotating seat and second rotating seat to each other close when unlocking position, to reduce the inner diameter of locking ring;Or first rotating seat and second rotating seat can be switched for unlock position by buckle when locking position, to each other away, to increase the inner diameter of locking ring;Through above-mentioned structure, it can guarantee that operation is convenient, simultaneously will not appear abrasion condition, make buckle locking mechanism structure always keep good locking effect, satisfy use demand. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0024] Figure 1 It is a kind of telescopic foot pipe in the first state structure schematic view;

[0025] Figure 2 It is a kind of telescopic foot pipe in the second state structure schematic view;

[0026] Figure 3 It is a kind of telescopic foot pipe exploded view. DETAILED DESCRIPTION

[0027] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the attached drawings, and the function of the attached drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0028] In the description of the utility model, the meaning of multiple is two or more, greater than, less than, exceed and the like are understood as not including this number, above, below, within and the like are understood as including this number.If there is a description to the first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0029] In the description of the utility model, it needs to be understood that, when the direction description, such as up, down, front, back, left, right and other directions or positional relations indicated are based on the direction or positional relation shown in the drawing, it is only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it can not be understood as the limitation of the utility model.

[0030] In the utility model, unless otherwise explicitly limited, the words such as '' setting '', '' installation '', '' connection '' should be understood broadly, for example, it can be directly connected, also can be indirectly connected through intermediate medium, it can be fixedly connected, also can be detachably connected, can also be integrally formed, it can be mechanical connection, it can be the communication or mutual action relation of two elements inside two elements. The person skilled in the art in the technical field can determine the specific meaning of the above words in the utility model in combination with the specific content of technical scheme.

[0031] Refer to Figures 1 to 3 The utility model provides a kind of buckle locking structure, including locking ring 100, buckle 200, pull rod 300, first pivot 410, second pivot 420 and third pivot 430;

[0032] Locking groove 110 is provided on locking ring 100, and first rotating seat 120 is arranged on one side of locking groove 110, and second rotating seat 130 is arranged on the other side;

[0033] One end of buckle 200 is connected with first rotating seat 120 by first pivot 410 and has unlock position and locking position that can be switched with each other;

[0034] One end of pull rod 300 is connected with one end of buckle 200 by second pivot 420, and the other end of pull rod 300 is connected with first rotating seat 120 by third pivot 430;

[0035] Buckle 200 can drive first rotating seat 120 and second rotating seat 130 to be close to each other by pull rod 300 when being switched from unlock position to locking position, to reduce the inner diameter of locking ring 100, or first rotating seat 120 and second rotating seat 130 can be away from each other when buckle 200 is switched from locking position to unlock position, to increase the inner diameter of locking ring 100.

[0036] Refer to Figure 1 For the structure schematic drawing of buckle locking structure in unlock state, refer to Figure 2 For the structure schematic drawing of buckle locking structure in locking state, refer to Figures 1 to 3The utility model provides a telescopic leg pipe, telescopic leg pipe includes inner tube 600, outer tube 700 and the buckle locking structure of described, the end of outer tube 700 is provided with a plurality of first deformation piece 710, locking ring 100 is set on the outside of first deformation piece 710, inner tube 600 is axially movably arranged in outer tube 700, buckle 200 can reduce the inner diameter of locking ring 100 when switching from unlocking position to locking position, make locking ring 100 push the first deformation piece 710 and the abutment of inner tube 600, to restrict the axial movement between inner tube 600 and outer tube 700, or buckle 200 can increase the inner diameter of locking ring 100 when switching from locking position to unlocking position, make the first deformation piece 710 and inner tube 600 separate, so that inner tube 600 can move axially relative to outer tube 700.

[0037] With the telescopic leg pipe from Figure 1 The unlocking state switches to the locked state of Figure 2 For example, in the unlocking state of Figure 1 Buckle 200 rotates inward relative to inner tube 600 and outer tube 700 around first rotation shaft 410, the process of rotating will drive pull rod 300 to move towards the direction of first rotating seat 120, in turn drive second rotating seat 130 to move towards the direction of first rotating seat 120, so that the distance between first rotating seat 120 and second rotating seat 130 is reduced, that is, the slot diameter of locking groove 110 is reduced, finally make the inner diameter of locking ring 100 is reduced, the locking force reaches the maximum when the inner diameter of locking ring 100 reaches the minimum; Further, the inner diameter of locking ring 100 is reduced, and the first deformation piece 710 is pushed to deform, until the outer wall of inner tube 600 is abutted, the friction between the first deformation piece 710 and inner tube 600 is used to limit the axial movement between inner tube 600 and outer tube 700, realize the locking of telescopic leg pipe; The unlocking process of telescopic leg pipe is contrary to the above process, which will not be repeated here, and it is not considered as a limitation of the utility model.

[0038] Referring to Figures 1 to 3 In some embodiments, first rotating seat 120 and second rotating seat 130 are configured with avoiding groove 500 to provide avoiding space for pull rod 300, pull rod 300 will also move towards the inside of outer tube 700 while moving towards first rotating seat 120, by setting avoiding groove 500 on first rotating seat 120 and second rotating seat 130, the movement of pull rod 300 can be avoided.

[0039] Referring to Figures 1 to 3In some embodiments, the second rotating shaft 420 is located outside the first rotating seat 120, so that the second rotating shaft 420 is driven to move outside the first rotating seat 120 by the buckle 200, which can avoid the movement interference between the second rotating shaft 420 and the first rotating seat 120.

[0040] With reference to Figures 1 to 3 In some embodiments, the rotating groove 210 is arranged on the buckle 200, the first rotating seat 120 is inserted into the rotating groove 210, the first rotating shaft 410 includes a first shaft body 411 and a second shaft body 412, and during assembly, the first rotating seat 120 is first inserted into the rotating groove 210 on the buckle 200, then the first shaft body 411 is arranged between the buckle 200 and the first rotating seat 120 from one side of the buckle 200, and the second shaft body 412 is arranged between the buckle 200 and the first rotating seat 120 from the other side of the buckle 200, to provide rotating support for the buckle 200, then one end of the pull rod 300 is inserted into the rotating groove 210 and the other end of the pull rod 300 is inserted into the avoiding groove 500 of the second rotating seat 130, and finally the second rotating shaft 420 is arranged between the one end of the pull rod 300 and the buckle 200, and the third rotating shaft 430 is arranged between the other end of the pull rod 300 and the buckle 200.

[0041] With reference to Figures 1 to 3 In some embodiments, the positioning sleeve 800 is arranged between the first deformation sheet 710 and the inner tube 600, the positioning sleeve 800 is provided with a plurality of second deformation sheets 810 abutting against the first deformation sheet 710, at least one second deformation sheet 810 is connected with the first deformation sheet 710 and the locking ring 100 through the positioning structure 900, as a preferred embodiment of the positioning structure 900, the positioning structure 900 includes a positioning block 910 arranged on the second deformation sheet 810, the first deformation sheet 710 is provided with a first positioning hole 920, the locking ring 100 is provided with a second positioning hole 930, and the positioning block 910 is inserted into the first positioning hole 920 and the second positioning hole 930; during assembly, the locking ring 100 is first sleeved outside the first deformation sheet 710, the second positioning hole 930 on the locking ring 100 is arranged opposite to the first positioning hole 920 on the outer tube 700, then the positioning sleeve 800 is inserted into the outer tube 700, the positioning block 910 on the positioning sleeve 800 is inserted into the first positioning hole 920 and the second positioning hole 930, to realize the positioning between the positioning sleeve 800, the outer tube 700 and the locking ring 100, and finally the inner tube 600 is inserted into the positioning sleeve 800; when the inner diameter of the locking ring 100 is reduced, the first deformation sheet 710 is deformed, and then the second deformation sheet 810 is deformed and abuts against the outer wall of the inner tube 600, the axial movement between the inner tube 600 and the outer tube 700 is limited by the friction force between the second deformation sheet 810 and the inner tube 600, to realize the locking of the telescopic leg tube.

[0042] Referring to Figure 3 In some embodiments, the second positioning hole 930 is close to the first rotating seat 120, which can make one side of the first rotating seat 120 of the locking ring 100 immovable, and one side of the second rotating seat 130 of the locking ring 100 can be close to or away from the first rotating seat 120, so as to realize the adjustment of the inner diameter of the locking ring 100.

[0043] Referring to Figure 3 In some embodiments, the positioning sleeve 800 is provided with a limiting ring 820 abutting against the end of the first deformation sheet 710, and the locking ring 100 is provided with a limiting groove 140, and the limiting ring 820 extends into the limiting groove 140; this arrangement can further limit the disengagement of the locking ring 100 from the outer tube 700, and provide better stability.

[0044] The utility model also provides a photography support, including telescopic foot pipe of stretchable.

[0045] The utility model discloses the advantage lies in: through above -mentioned structure can guarantee convenient operation, and will not appear the abrasion situation simultaneously, makes the structure of the snap lock machine always keeps good locking effect, satisfies use demand.

[0046] Of course, the utility model is not limited to the above-mentioned embodiment, and those skilled in the art can make equivalent transformation or replacement without departing from the spirit of the utility model, and the equivalent transformation and replacement are all included in the range defined by the claims of the present application.

Claims

1. A snap lock structure, characterized by: The locking ring (100), the buckle (200), the pull rod (300), the first rotating shaft (410), the second rotating shaft (420) and the third rotating shaft (430) are included. The locking groove (110) is arranged on the locking ring (100) and penetrates through the front and back, and the first rotating seat (120) is arranged on one side of the locking groove (110) and the second rotating seat (130) is arranged on the other side. One end of the buckle (200) is connected with the first rotating seat (120) through the first rotating shaft (410) and has an unlock position and a locking position which can be switched with each other. One end of the pull rod (300) is connected with one end of the buckle (200) through the second rotating shaft (420), and the other end of the pull rod (300) is connected with the first rotating seat (120) through the third rotating shaft (430). When the buckle (200) is switched from the unlock position to the locking position, the first rotating seat (120) and the second rotating seat (130) are driven by the pull rod (300) to move close to each other, so as to reduce the inner diameter of the locking ring (100); or the first rotating seat (120) and the second rotating seat (130) can move away from each other when the buckle (200) is switched from the locking position to the unlock position, so as to increase the inner diameter of the locking ring (100).

2. The locking structure according to claim 1, wherein: The first rotating seat (120) and the second rotating seat (130) are provided with an avoiding groove (500) which provides an avoiding space for the pull rod (300).

3. The locking structure according to claim 1, wherein: The second rotating shaft (420) is located outside the first rotating seat (120), so that the second rotating shaft (420) moves outside the first rotating seat (120) under the driving of the buckle (200).

4. The clamping structure of claim 1, wherein: The first rotating seat (120) extends into the rotating groove (210) of the buckle (200), the first rotating shaft (410) includes a first shaft body (411) and a second shaft body (412), the first shaft body (411) is arranged between the buckle (200) and the first rotating seat (120) from one side of the buckle (200), and the second shaft body (412) is arranged between the buckle (200) and the first rotating seat (120) from the other side of the buckle (200).

5. A telescoping leg tube characterized by: The inner tube (600), the outer tube (700) and the buckle locking structure of any one of claims 1-4 are included. The end of the outer tube (700) is provided with a plurality of first deformation pieces (710), and the locking ring (100) is arranged outside the first deformation pieces (710). The inner tube (600) is arranged axially movably in the outer tube (700). The buckle (200) can reduce the inner diameter of the locking ring (100) when switched from the unlocking position to the locking position, so that the locking ring (100) pushes the first deformation piece (710) to abut against the inner tube (600), thereby limiting the axial movement between the inner tube (600) and the outer tube (700); or the buckle (200) can increase the inner diameter of the locking ring (100) when switched from the locking position to the unlocking position, so that the first deformation piece (710) is separated from the inner tube (600), so that the inner tube (600) can move axially relative to the outer tube (700).

6. A telescoping leg tube according to claim 5, wherein: The first deformation piece (710) and the inner tube (600) are provided with a positioning sleeve (800), and the positioning sleeve (800) is provided with a plurality of second deformation pieces (810) abutting against the first deformation piece (710), and at least one second deformation piece (810) is connected with the first deformation piece (710) and the locking ring (100) through a positioning structure (900).

7. A telescoping leg tube according to claim 6, wherein: The positioning structure (900) comprises a positioning block (910) arranged on the second deformation piece (810), the first deformation piece (710) is provided with a first positioning hole (920), and the locking ring (100) is provided with a second positioning hole (930), and the positioning block (910) extends into the first positioning hole (920) and the second positioning hole (930).

8. A telescoping leg tube according to claim 7, wherein: The second positioning hole (930) is close to the first rotating seat (120).

9. A telescoping leg tube according to claim 6, wherein: The positioning sleeve (800) is provided with a limiting ring (820) abutting against the end of the first deformation piece (710), and the locking ring (100) is provided with a limiting groove (140), and the limiting ring (820) extends into the limiting groove (140).

10. A photographic support, characterised in that: The telescopic leg tube comprises the telescopic leg tube according to any one of claims 5-9. The telescopic leg tube comprises the telescopic leg tube according to any one of claims 5-9.

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