WO2010031208A1

WO2010031208A1 - Photography tripod

Info

Publication number: WO2010031208A1
Application number: PCT/CN2008/001833
Authority: WO
Inventors: 刘昊
Original assignee: Liu Hao
Priority date: 2008-09-22
Filing date: 2008-10-31
Publication date: 2010-03-25
Also published as: CN201277425Y

Abstract

A photography tripod includes a main body base (1) having a central hole (11), at least one leg-tube assembly (2) attaching to the main body base, a bracket plate (3), a medial shaft (4) mounting a photographic equipment, and a bracket holder (5). The bracket plate has a through hole (32), and is provided in the central hole in such a way that the through hole is concentric with the central hole, and can rotate around a central axis of the central hole. The bracket holder has a hole (52) for containing and supporting the medial shaft, and can rotate around another axis being perpendicular to the central axis, and pivot on the bracket plate in such a way that the hole is aligned with the through hole. A locking mechanism is provided between the bracket plate and the main body base for locking the movement of the bracket plate relative to the main body base in the direction of the central axis. At least one locking knob (16) is provided on the lateral wall of the main body base. A part of the locking knob passes through an opening on the lateral wall of the main body base and touches an external surface of the bracket plate.

Description

Photography stand

The present invention relates to the field of photographic equipment, and more particularly to a photographic stand that can be placed at a lower center and can be photographed at a low angle. Background technique

Photographic tripods are one of the commonly used photographic equipment. The tripods currently on the market mainly include a body, a support rod (or a central shaft), three adjustable legs, and a support rod locking mechanism. The support rod passes through the middle of the body, and the support rod locking mechanism is located at the upper end of the body. When the support rod locking mechanism is released, the support rod can be adjusted up and down. This tripod can only adjust the height of the camera, but it can't rotate the camera horizontally and vertically. It is difficult to meet the needs of all-round, multi-angle shooting.

The Chinese invention patent CN1232935A discloses a tripod, in particular for photography, comprising a star-shaped fork for articulating the legs and a seat mounted in the star-shaped fork, the bracket having a coaxial line with the main axis of the tripod One and a second seat having an axis substantially perpendicular to the first seat. The tripod can only achieve low-angle vertical movement when the center axis is at the center of the star fork, and can only rotate horizontally when the center axis is placed in the second seat. Multi-angle shooting is not possible.

The Chinese invention patent CN 1220840C discloses a tripod, in particular for optical and photographic equipment, comprising a carrier disk with a central shaft, a support for supporting the central shaft on the support disk, and a central axis positioning mechanism for the support, The central shaft is movably locked in at least two positions, the axis of the central axis being inclined at an angle relative to the main axis of the carriage. Although the center axis can achieve multiple angles and low angles, it must be eccentric with the tripod.

The Chinese invention patent CN2618031Y discloses a universal rotary type tripod whose cylindrical central shaft can realize multi-angle shooting and is centered vertically. Here, the rotating body is sleeved in the support seat with the center hole concentrically aligned with the center hole of the support seat, and a collar is pivotally connected to the rotating body, and the collar is rotatable relative to the rotating body, thereby The collar can be moved into position with its central aperture aligned with the rotating body and the central aperture on the support base. At this time, an upper sleeve is sleeved in the central hole of the rotating body, and the lower end is combined with the screw of the lower sleeve to thereby press the upper sleeve against the upper inner ring surface of the rotating body and the lower sleeve to withstand The bottom surface of the support base realizes the axial fixation of the rotating body relative to the support base, and relies only on the frictional contact caused by the compression to prevent the rotation of the rotating body relative to the support base. This kind of dependence The structure of the sleeve to axially position the rotating body and prevent its rotation relative to the support base is not suitable for directly locking the rotating body, so the locking effect is not good, and the structure is complicated, the parts are large and the volume is large. As a result, the overall weight of the tripod is heavier, which is incompatible with the current lightweight requirements of the tripod. Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a stand having a structural unit and a light weight that is convenient to use and capable of realizing shooting at any orientation and angle in view of the deficiencies of the prior art.

To achieve the above object, the present invention provides a photographic stand comprising a body seat having a center hole, at least one foot tube member coupled to the body seat, having a through hole and rotating about a central axis of the center hole and The through hole is concentrically arranged with the center hole in a bracket plate in the center hole, a middle shaft carrying the photographic equipment, and a bracket seat having a hole for receiving and supporting the center shaft, and the bracket seat can be wound around the center The other axis perpendicular to the axis rotates and thereby pivots the hole and the through hole to be aligned with the bracket disk, wherein a locking mechanism is provided between the bracket disk and the body seat for locking the bracket disk relative to the body seat Moving along the central axis, at least one locking button is disposed on the side wall of the body seat, and a part of the locking button can pass through the opening on the side wall of the body seat and contact the outer surface of the bracket disk for limiting the bracket disk Rotation within the body seat.

In the present invention, in order to facilitate the rotation, the lower end of the holder disk preferably has an annular shape matching the central hole of the body seat. When the holder base is rotated to overlap the holder disk, the hole of the holder seat and the through hole of the holder disk are concentrically aligned so that the center shaft can be passed through and movable.

According to an aspect of the invention, the locking mechanism may include a groove provided on an outer wall of the bracket disk, a groove provided on an inner wall of the body seat, and an elastic body accommodated between the groove and the groove. Here, the grooves and/or grooves are preferably continuous annular grooves extending in the circumferential direction. Since the elastic body is accommodated in the slot and the slot when the bracket disc is placed in the body seat, the movement of the bracket disc in the direction of the central axis can be restricted, thereby preventing the bracket disc from slipping out when it is horizontally rotated in the body seat or when inverted. But it will not hinder the rotation of the bracket disk.

According to the present invention, the locking mechanism may further include a groove provided on the outer wall of the bracket disk, a screw hole formed in the outer wall of the body seat, and a screw which can pass through the screw hole to enter the groove. Also, the groove formed on the outer wall of the holder disk is preferably a continuous ring groove extending in the circumferential direction. Here, by screwing the screw through the screw hole and screwing into the groove, the movement of the bracket disk in the direction of the central axis in the body seat is restricted, thereby preventing the bracket disk from slipping out when it is horizontally rotated in the body seat or when it is inverted.

In the present invention, the locking mechanism may include a thread on a lower end portion of the bracket disk and a nut screwable on the thread, the nut being sized to abut at least a portion of the nut to the body seat On the bottom surface or on the end face of the center hole. After the lower end of the bracket disc is screwed with the nut, the nut is sized to interfere with the bottom surface of the main body seat or the end surface of the central hole, thereby restricting the movement of the bracket disc along the central axis, thereby preventing the bracket disc from rotating horizontally within the body seat. Slide out when standing or when standing upside down.

According to the invention, the lock button has a threaded portion, and the opening in the side wall of the body seat is a threaded hole, and the threaded portion is screwed into the threaded hole to be screwed into the threaded hole. When the lock button in the threaded hole is moved from the outside to the inside, the front end of the lock button abuts against the outer surface of the bracket disc, especially the outer wall surface, to restrict the rotation of the bracket disc. It is also conceivable that the locking button has, for example, a projection that is pivotally transferred into the opening in the side wall of the body seat, and an elastic member such as an elastic lock that is connected to the body seat is provided in the opening, and at this time, the locking button pivot The rotation moves the protrusion into the opening on the side wall of the body seat, thereby pressing the elastic member to abut against the outer wall surface of the bracket disk, thereby restricting the rotation of the bracket disk.

Advantageously, the body seat is provided with an extension arm rotatably coupled to the upper end of the foot tube member, the end portion of the extension arm having a plurality of projections that control the opening angle of the foot tube member. At this time, the foot tube member may also have a limit adjustment block that cooperates with the projection. The foot tube members of the foot stand can be expanded at different angles by the cooperation of the projections at the ends of the extension arms and the limit adjustment blocks on the foot tube members.

In order to facilitate the fixing of the central shaft, the hole of the bracket seat is an open hole, and a clip is extended from each of the two walls of the opening of the opening hole for clamping and accommodating the central shaft in the hole. At this time, bolts passing through the two clips can be set to adjust the opening degree of the opening hole and the tightness of the centering shaft to accommodate the center shaft of different diameters. Further, in the present invention, the photographic stand preferably has three leg members, and the lock knob is disposed on the side wall of the body between the two leg members.

Compared with the prior art, the photographic stand according to the present invention is convenient to use, can meet the shooting needs of any orientation and angle, and is structurally simple. In particular, by providing a separate locking mechanism in the photographic stand for locking the axial movement of the cradle relative to the body seat, and a separate locking knob for locking the rotation of the cradle in the body seat, the two locks The stop mechanism performs its duties, so when it is only necessary to make the height adjustment, it is only necessary to release the locking mechanism, and when it is only desired to realize the rotation of the bracket disk in the body seat, the lock button can be released, and only the prior art CN2618031Y relies on The upper and lower casings are improved in both the locking effect and the rotational locking as compared with the axial movement and the rotational locking, and the structure is more compact, and the overall weight of the tripod becomes lighter. DRAWINGS

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which:

Figure 1 is an exploded view of an embodiment of a tripod in accordance with the present invention;

Figure 2 is a cross-sectional view showing one embodiment of a tripod locking mechanism including an elastomer and Cooperating groove;

Figure 3 is a cross-sectional view showing another embodiment of the locking mechanism including a screw and a groove engaged therewith;

Figure 4 is a cross-sectional view showing another embodiment of the locking mechanism including a thread on the lower end of the bracket disk and a nut mated therewith;

Figure 5 shows a photographic stand according to the present invention in use;

Figure 6 is a view showing a state in which the center axis of the photographic stand shown in Figure 5 is horizontally placed;

Figure 7 is a view showing a state in which the center axis of the photographic stand shown in Figure 5 is externally placed;

Fig. 8 shows a case where the photographic stand shown in Fig. 5 is taken at a low angle. detailed description

1 is an exploded view showing an embodiment of a photographic stand according to the present invention, in which the stand includes a body base 1 having a center hole 11, and at least one such as three is coupled to the body base 1. The foot tube 2 has a through hole 32 and is sleeved in the center hole 11 so as to be rotatable about the central axis Y of the center hole 11 and the through hole 32 is concentric with the center hole 11, and is carried in the photographic apparatus Shaft 4, and bracket base 5. The bracket base 5 has a hole 52 for receiving and supporting the center shaft 4, and the bracket seat 5 is rotated in such a manner as to be rotatable about another axis X perpendicular to the central axis Y and thereby aligning the hole 52 with the through hole 32 It is pivotally connected to the bracket disc 3. In order to prevent the bracket disc 3 from slipping out when it is horizontally rotated in the body seat 1 or when it is inverted, a locking mechanism is provided between the bracket disc 3 and the body base 1 for locking the bracket disc 3 relative to the main body seat 1 along the central axis Y direction. mobile. In addition, at least one locking button 16 is further disposed on the side wall of the body base 1 , and a part of the locking button can pass through the opening 16A on the side wall of the body seat and contact the outer surface of the bracket disk 3 for limiting the bracket disk 3 Rotation in the body base 1.

According to the present invention, the locking mechanism of the above-described photographic stand can have various embodiments. Figure 2 shows an embodiment of a locking mechanism comprising, for example, a slot 312 provided on the outer wall of the bracket disc 3, a recess 102 provided in the inner wall of the body mount 1 and accommodating in the slot and the recess Elastomer 19. Here, the groove 312 on the holder disk 3 is preferably a continuous ring groove extending in the circumferential direction of the holder disk 3. When the bracket disk 3 is placed in the center hole 11 of the body base 1, the elastic body 19 accommodated in the groove 312 and the groove 102 restricts the movement of the bracket disk 3 in the direction of the central axis Y or the axial movement. Further, the carriage disk 3 is prevented from slipping out when it is horizontally rotated in the body base 1 or when it is inverted. This locking structure does not prevent the carriage 3 from rotating within the body seat.

Figure 3 shows another embodiment of the locking mechanism, wherein the locking mechanism comprises a bracket A groove 312 on the outer wall of the disk 3, a screw hole 100 penetrating the outer wall of the body block 1, and a screw 111 that can pass through the screw hole 100 into the groove 312. The groove 312 on the holder disk 3 is preferably a continuous ring groove extending in the circumferential direction of the holder disk 3. When the holder disk 3 is placed in the center hole 11 of the body holder, the screw 111 is screwed into the groove 312 through the screw hole 100, thereby preventing the holder disk 3 from slipping out when it is horizontally rotated in the body seat 1 or when it is inverted. In order not to obstruct or prevent the bracket disk 3 from rotating in the body seat, the screw head should be prevented from abutting against the bottom of the groove 312 when the screw is screwed.

Figure 4 illustrates another embodiment of a locking mechanism that includes a thread 313 on the lower end of the bracket disk 3 and a nut 314 that can be threaded onto the thread 313, the nut being sized or shaped to enable at least the nut One portion abuts against the bottom surface of the body base 1 or the end surface of the center hole 11. As shown in Fig. 4, a ring nut 314 is attached to the end face of the center hole 11. It is also conceivable that the nut 314 can abut against the bottom surface of the body seat when one end of the threaded wire 313 of the bracket disk 3 projects beyond the body seat. The nut 314 can be a nut of any shape and is not limited to a ring nut. After the bracket disc 3 is screwed to the nut 314 by the thread 313, the bracket disc 3 cannot be moved axially, thereby preventing the bracket disc from slipping out, but does not hinder or significantly hinder the rotation of the bracket disc 3.

In the above embodiment, after the horizontal rotation angle is adjusted, the bracket disk 3 can be restricted from rotating relative to the body base 1 by the lock lock button 16. In accordance with the present invention, the lock button 16 can have a variety of embodiments. According to one embodiment, the lock button 16 has a threaded portion, and the opening in the side wall of the body seat 1 is a threaded hole 16A that matches it so that the threaded portion can be screwed through the threaded hole. When the lock button 16 is rotated from the outside to the inside, the front end of the lock button 16 abuts against the outer wall surface of the bracket tray 3, and the purpose of the lock bracket disc is rotated by frictional contact. The lock button 16 is preferably configured to be adjustable in any direction when the bracket disk 3 is locked. According to another embodiment, a lock button as described below effects a releasable rotational lock of the carriage disk 3 within the body seat, the lock twist having a projection pivotable into an opening in the side wall of the body seat, and An elastic member connected to the body seat is disposed in the opening, and the pivoting of the locking button drives the protrusion into the opening, and presses the elastic member to abut against the outer wall surface of the bracket disk, thereby limiting the rotation of the bracket disk in the body seat. . Here, the elastic member may be an elastic lock.

In any of the above embodiments, in order to facilitate the fixing of the center shaft 14, the hole 52 of the bracket base 5 is formed in the shape of an opening hole, and a clip 52a is extended from each of the opening walls of the opening hole, and the bolt 55 and the locking knob are passed through the bolt 55 and the locking knob. Locked 81 for clamping and receiving the central shaft 4 in the bore 52.

Advantageously, the body base 1 is provided with an extension arm 12 rotatably coupled to the upper end of the foot tube member 2, and the end of the extension arm 12 is provided with a plurality of toothed projections 13 for controlling the opening angle of the foot tube member 2, For better control of the shooting angle, a level and compass 117 are also provided at the top of the extension arm. The upper end portion 21 of the leg tube member 2 is provided with a limit adjustment block 22 that cooperates with the projection 13 at the end of the extension arm 12. Here, the bumps 13 are tooth-shaped, it being understood that any other suitable shape is also possible. The foot tube members of the foot stand can be deployed at different angles by the mutual engagement of the projections 13 at the ends of the extension arms 12 with the limit adjustment blocks 22 on the foot tube members 2.

In addition, a connecting portion is disposed on the upper end of the bracket disc 3 and the bracket base 5, and a plurality of clutch teeth 34 are disposed on the end surface of the connecting portion 31 of the bracket disc 3, and the connecting portion 51 of the bracket base 5 and the bracket disc connecting portion 31 are provided. A plurality of clutch teeth 53 are also disposed on opposite end faces of the end faces, and the clutch teeth on both end faces can be engaged with each other. The bracket plate 3 and the bracket base 5 can be connected by bolts 80 and can be tightened by a knob 811. In order to achieve the bracket seat 5, the knob 811 can be automatically popped open when it is released. Preferably, a hole is provided in the inside of the bracket tray 3, and a spring 36 is disposed in the hole. The clutch teeth are provided on the opposite end faces of the two connecting portions in order to avoid looseness which may still occur between the bracket disc 3 and the bracket seat 5 after the knob 811 is locked, so that the center shaft 4 and the support on the center shaft can be photographed. The equipment is more accurately positioned.

5 to 8 show different states of use of the photographic stand according to the present invention. Fig. 5 shows the photographic stand according to the present invention in use, in which the central axis is vertically passed through the holes of the mutually aligned holder seats and the through holes of the holder disk and the center hole of the body holder. From the state of use, the locking knob 81 on the bracket 5 can be released, and the center shaft 4 can be withdrawn from the body base 1. Then, the lock knob 16 is released, whereby the carriage 3 can be rotated in the body base 1. At the same time, the knob 811 is loosened so that the holder base 5 can pivot about another axis X perpendicular to the central axis Y of the body seat 1, thereby adjusting the holder base 5 to, for example, the axis of the hole 52 thereof perpendicular to the body seat 1 The central axis, and then the middle shaft 4 is placed through the hole 52 in the bracket seat 5, thereby obtaining the state in which the center shaft is transversely placed (as shown in FIG. 6), and the tray 3 can be rotated in the body seat at this time. To the desired angle. If the bracket 5 is continuously pivoted, the stand will be adjusted to the state in which the center shaft 4 is external (as shown in Figure 7). Moreover, by adjusting the limit adjustment block and the bump on the foot tube and the body seat, a low angle shooting state can be obtained (as shown in Fig. 8). Therefore, the above-described photographic stand can simultaneously perform horizontal rotation about the central axis Y and pivoting about another axis X perpendicular thereto, thereby realizing omnidirectional and multi-angle shooting.

It is to be understood that the foregoing description is illustrative and not restrictive, and, in addition to the Equivalent substitutions will be obvious. Further, although the present invention is mainly directed to photographic equipment, the present invention is also applicable to surveying instruments of similar structures, and observation instruments such as telescopes and the like.

Claims

Rights request

A photographic stand comprising a body seat (1) having a center hole (11), at least one foot tube member (2) coupled to the body seat (1), having a through hole (32) and a bracket disk (3) that is rotatable about a central axis (Y) of the center hole and concentric with the center hole in the center hole (11), and a central axis carrying the photographic equipment (4) And a bracket base (5) having a hole (52) for receiving and supporting the center shaft (4), and the bracket seat (5) is capable of being wound around the central axis (Y) A vertical axis (X) is rotated and thereby the hole (52) and the through hole (32) are aligned with each other in a manner of being pivotally connected to the bracket disk (3), characterized in that the carrier disk (3) a locking mechanism is provided between the body seat (1) for locking the movement of the bracket disk relative to the body seat (1) along the central axis, and at least a sidewall of the body seat (1) is provided A lock button (16), a portion of the lock button can pass through an opening in the side wall of the body seat and contact the outer surface of the bracket disk (3).

2. The photographic stand according to claim 1, wherein the locking mechanism comprises a groove (312) disposed on an outer wall of the bracket disk (3), disposed on an inner wall of the body seat (1) a slot (102), and an elastomer (19) that can be received in the slot and the slot.

The photographic stand according to claim 1, wherein the locking mechanism comprises a groove (312) disposed on an outer wall of the bracket disk (3), and an outer wall of the body seat (1) The upper screw hole (100) and the screw (111) that enters the slot (312) through the screw hole (100).

4. The photographic stand according to claim 1, wherein the locking mechanism comprises a thread (313) on a lower end portion of the bracket disk (3), and a nut screwable on the thread ( 314) The nut is sized such that at least a portion of the nut abuts against a bottom surface of the body seat (1) or an end surface of the center hole (11).

The photographic stand according to any one of claims 1 to 4, characterized in that the lock button (16) has a threaded portion, and the opening in the side wall of the body seat (1) is a threaded hole (16A) And the threaded portion is screwed into the threaded hole to be screwed through the threaded hole.

The photographic stand according to any one of claims 1 to 4, wherein the hole (52) of the bracket base (5) is an open hole, and one of the two walls of the opening of the hole extends from the opening A clip (52a) for clamping and receiving the central shaft (4) in the hole (52).

The photographic stand according to any one of claims 1 to 4, characterized in that the body seat (1) is provided with an extension arm (12) rotatably connected to the upper end of the leg tube (2) The end of the extension arm (12) has a plurality of bumps (13) for controlling the opening angle of the foot tube (2).

8. The photographic stand according to claim 7, wherein the foot tube member (2) has There is a limit adjustment block (22) that cooperates with the bump (13).

The photographic stand according to any one of claims 1 to 4, wherein the photographic stand has three leg members, and the lock button is disposed between the two leg members.

The photographic stand according to any one of claims 1 to 4, characterized in that the lock button (16) has a convexity that can be pivoted into the opening on the side wall of the body seat (1) And an elastic member connected to the body seat is disposed in the opening, and the protrusion can press the elastic member to abut against the outer wall of the bracket disk.