A supporting leg structure of a photographic stand

Abstract

The utility model discloses a supporting leg structure of a photographic bracket, comprising a first-level leg bracket, a second-level leg bracket and a third-level leg bracket, the second-level leg bracket being slidably connected to the first-level leg bracket and being able to extend from the lower part of the first-level leg bracket, the third-level leg bracket being slidably connected to the second-level leg bracket and being able to extend from the lower part of the second-level leg bracket, a first locking structure is provided between the first-level leg bracket and the second-level leg bracket, and a second locking structure is provided between the second-level leg bracket and the third-level leg bracket, and a linkage structure is further provided between the first locking structure and the second locking structure, which can drive the second locking structure to be locked when the first locking structure is locked. In this case, a linkage structure is further provided between the first locking structure and the second locking structure, which can drive the second locking structure to be locked when the first locking structure is locked, so that when the first locking structure is locked, the second locking structure can be driven to be locked at the same time, the steps are simple and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of photography auxiliary equipment, in particular to a supporting leg structure of a photography bracket. Background Art

[0002] A tripod is a very important tool in photography and filmmaking. Its functions are generally to: 1. Stabilize the camera or camcorder to reduce the shake and blur caused by handheld shooting; 2. Reduce the burden on the photographer or videographer and ensure a stable picture when long exposure or continuous shooting is required; 3. By using a tripod, photographers can adjust the camera position and angle more accurately to get the composition they need.

[0003] On the market, traditional camera tripods are generally tripods. In order to have a larger adjustment range, each supporting leg is composed of five leg tubes. Each leg tube is divided into three sections. A locking buckle structure is set between every two sections to lock the leg tube, so a total of two buckle locking structures are set. Every time you adjust the height of the photography tripod, you generally need to loosen the two buckles separately to freely adjust the height. The steps are cumbersome and the operation is troublesome.

[0004] The utility model is made based on the above situation. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a supporting leg structure which can drive the second locking structure to be locked simultaneously when the first locking structure is locked, thereby making the operation easier.

[0006] The utility model is realized by the following technical solutions:

[0007] A supporting leg structure of a photographic stand comprises a primary leg stand, a secondary leg stand and a tertiary leg, the secondary leg stand being slidably connected to the primary leg stand and being able to extend from the lower part of the primary leg stand, the tertiary leg being slidably connected to the secondary leg stand and being able to extend from the lower part of the secondary leg stand, a first locking structure capable of locking the secondary leg stand on the primary leg stand is provided between the primary leg stand and the secondary leg stand, a second locking structure capable of locking the tertiary leg stand on the secondary leg stand is provided between the secondary leg stand and the tertiary leg stand, and a linkage structure capable of driving the second locking structure to be locked when the first locking structure is locked is also provided between the first locking structure and the second locking structure.

[0008] In the supporting leg structure of a photographic stand as described above, the first locking structure includes a first connecting seat connected to the secondary leg rack, the first connecting seat is connected to a first locking block and a buckle assembly that can pull the first locking block to press the primary leg rack onto the first connecting seat.

[0009] In the supporting leg structure of a photographic stand as described above, the second locking structure includes a second locking seat connected to the secondary leg rack, and the second locking seat is slidably connected to a second locking block that can press the tertiary leg onto the second locking seat.

[0010] As described above, the supporting leg structure of a photographic stand, the linkage structure includes a guide rod, the upper part of the guide rod is provided with a first slot, the first locking block is provided with a first inclined block, the first inclined block is provided with a first inclined surface that can push the guide rod upward when the first inclined block is inserted into the first slot, the second locking block is provided with a second inclined surface, and the lower part of the guide rod is provided with a third inclined surface that can cooperate with the second inclined surface when the guide rod moves upward to push the second locking block to press the third-level leg tube.

[0011] As described above, the supporting leg structure of a photographic stand, the buckle assembly includes a buckle rotatably connected to a first connecting seat and a traction member that can pull the first locking block toward the first-level leg rack when the buckle is engaged, one end of the traction member is connected to the upper part of the buckle, and the other end is connected to the first locking block.

[0012] In the supporting leg structure of a photographic stand as described above, a first reset structure is provided between the first locking block and the first connecting seat, which can push the first locking block away from the first-stage leg stand when the buckle is released.

[0013] In the supporting leg structure of a photographic stand as described above, a second reset structure is provided between the guide rod and the second locking seat, which can reset the guide rod when the trigger is released.

[0014] In the supporting leg structure of a photographic stand as described above, a third reset structure is provided between the second locking block and the second locking seat, which can push the second locking block away from the third-level leg tube when the guide rod moves downward.

[0015] As described above, the supporting leg structure of a photographic stand is characterized in that a slider is sleeved on the lower part of the guide rod, a protrusion is provided on the side wall of the slider, the third inclined surface is provided on the protrusion, a slide rail sleeve is also sleeved on the lower part of the guide rod, the slide rail sleeve is connected to the second locking seat, a slide hole is provided in the slide rail sleeve for the slider to slide, a limiting structure is also provided at the lower part of the guide rod for limiting the slider from detaching from the guide rod, and the second reset structure includes a second reset spring arranged in the slide hole and capable of pushing the slider downward.

[0016] In the supporting leg structure of a photographic stand as described above, the upper end of the guide rod is connected to the first traction block, the first slot is arranged on the first traction block, and the upper inner wall of the first slot is provided with a fourth inclined surface that can cooperate with the first inclined surface to push the guide rod upward.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] In the present case, a linkage structure is also provided between the first locking structure and the second locking structure, which can drive the second locking structure to be locked when the first locking structure is locked. Therefore, when the pull-button assembly pulls the first locking block, the slide block is pulled by the guide rod, thereby pushing the second locking block to press the three-stage leg tube. The first locking structure and the second locking structure can be locked and unlocked at the same time through a pull-button assembly. The steps are simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is an exploded schematic diagram of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the buckle assembly in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the second locking structure in the utility model;

[0024] Figure 5 It is a cross-sectional schematic diagram of the utility model;

[0025] Figure 6 This is a cross-sectional view of the first locking structure in the utility model. Figure 1 ;

[0026] Figure 7 This is a cross-sectional view of the first locking structure in the utility model. Figure 2 ;

[0027] Figure 8 It is a structural schematic diagram of the utility model when it is installed on a photographic bracket. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings:

[0029] like Figures 1 to 7The supporting leg structure of a photographic stand shown in the figure includes a first-level tripod frame 1, a second-level tripod frame 2 and a third-level tripod 3. The second-level tripod frame 2 is slidably connected to the first-level tripod frame 1 and can be extended from the lower part of the first-level tripod frame 1. The third-level tripod 3 is slidably connected to the second-level tripod frame 2 and can be extended from the lower part of the second-level tripod frame 2. A first locking structure 4 that can lock the second-level tripod frame 2 on the first-level tripod frame 1 is provided between the first-level tripod frame 1 and the second-level tripod frame 2. A second locking structure 5 that can lock the third-level tripod 3 on the second-level tripod frame 2 is provided between the second-level tripod frame 2 and the third-level tripod 3. A linkage structure 6 that can drive the second locking structure 5 to be locked when the first locking structure 4 is locked is also provided between the first locking structure 4 and the second locking structure 5.

[0030] In this case, a linkage structure 6 is provided between the first locking structure 4 and the second locking structure 5, which can drive the second locking structure 5 to be locked when the first locking structure 4 is locked, so that when the first locking structure 4 is locked, the second locking structure 5 can be locked at the same time, the steps are simple and the operation is convenient.

[0031] In one embodiment, the first-level leg tube frame 1 is composed of two first-level leg tubes arranged at intervals and a first-level leg tube joint 10 arranged at both ends of the first-level leg tubes to connect the two first-level leg tubes. The second-level leg tube frame 2 is composed of two second-level leg tubes arranged at intervals and a second-level leg tube joint arranged at both ends of the second-level leg tubes to connect the two second-level leg tubes. The second-level leg tube frame 2 is arranged between the two first-level leg tubes, and the third-level leg tube 3 is arranged between the two second-level leg tubes. The first-level leg tube joint 10 at the lower end of the first-level leg tube is provided with a through hole for the second-level leg tube frame 2 to extend out, and the second-level leg tube joint at the lower end of the second-level leg tube frame 2 is provided with a through hole for the third-level leg tube 3 to extend out. Among them, the first-level leg tube can be connected to the first-level leg tube joint 10 by sleeve connection and threaded fasteners, and of course, it can also be connected to the first-level leg tube joint 10 by snap buckle buckle or other connection methods. The second-level leg tube can be connected to the second-level leg tube joint by sleeve connection and threaded fasteners, and of course, it can also be connected to the second-level leg tube joint by snap buckle buckle or other connection methods.

[0032] In one embodiment, the first locking structure 4 includes a first connecting seat 41 connected to the secondary leg rack 2, and the first connecting seat 41 is connected to a first locking block 42 and a buckle assembly that can pull the first locking block 42 to press the primary leg rack 1 onto the first connecting seat 41. The second locking structure 5 includes a second locking seat 51 connected to the secondary leg tube frame 2, and a second locking block 52 that can press the tertiary leg tube 3 onto the second locking seat 51 is slidably connected to the second locking seat 51, and the linkage structure 6 includes a guide rod 61, and the upper part of the guide rod 61 is provided with a first slot 71, and the first locking block 42 is provided with a first inclined block 421, and the first inclined block 421 is provided with a first inclined surface 4211 that can push the guide rod 61 upward when the first inclined block 421 is inserted into the first slot 71, and the second locking block 52 is provided with a second inclined surface 521, and the lower part of the guide rod 61 is provided with a third inclined surface 611 that can cooperate with the second inclined surface 521 when the guide rod 61 moves upward to push the second locking block 52 to press the tertiary leg tube 3. Wherein, the first connecting seat 41 and the second locking seat 51 can be connected to the secondary leg tube frame 2 by other connection methods such as threaded fasteners or latches. Wherein, the guide rod 61 is inserted into one of the secondary leg tubes.

[0033] When the pull-button assembly is buckled, the pull-button assembly pulls the first locking block 42 to press the first-level leg rack 1. When the first locking block 42 moves, the first inclined block 421 is inserted into the first slot 71 to push the guide rod 61 upward. When the guide rod 61 moves upward, the third inclined surface 611 pushes the second locking block 52 to press the third-level leg 3, so that the first locking structure 4 and the second locking structure 5 can be locked at the same time through a pull-button assembly. The steps are simple and the operation is convenient.

[0034] In one embodiment, the pull button assembly includes a pull button 81 rotatably connected to the first connecting seat 41 and a traction member 82 that can pull the first locking block 42 toward the first leg frame 1 when the pull button 81 is engaged, one end of the traction member 82 is connected to the upper part of the pull button 81, and the other end is connected to the first locking block 42. The traction member 82 is a U-shaped rod, which is connected to the pull button 81 through a pin, and the end of the U-shaped rod is connected to the first locking block 42 through a threaded fastener. The threaded fastener can be sleeved by sleeved a threaded cap on the end of the U-shaped rod.

[0035] In one embodiment, a first reset structure 43 is provided between the first locking block 42 and the first connecting seat 41, which can push the first locking block 42 away from the first leg frame 1 when the pull button 81 is released. The first reset structure 43 can be a reset spring or other elastic member. A second reset structure 63 is provided between the guide rod 61 and the second locking seat 51, which can reset the guide rod 61 when the pull button 81 is released. The second reset structure 63 can be a reset spring or other elastic member. A third reset structure 53 is provided between the second locking block 52 and the second locking seat 51, which can push the second locking block 52 away from the third leg frame 3 when the guide rod 61 moves downward. The third reset structure 53 can be a reset spring or other elastic member.

[0036] When the trigger 81 is unfastened, the first reset structure 43 pushes the first locking block 42 to unlock the first locking structure 4, the first inclined block 421 follows the first locking block 42 to move out of the first slot 71, the second reset structure 63 pushes the guide rod 61 downward to reset it, and the third reset structure 53 pushes the second locking block 52 away from the third-level leg 3 to unlock the second locking structure 5, so that the first locking structure 4 and the second locking structure 5 can be unlocked at the same time through a trigger assembly, the steps are simple and the operation is convenient.

[0037] In one embodiment, the lower part of the guide rod 61 is sleeved with a slider 64, the side wall of the slider 64 is provided with a protrusion 641, the third inclined surface 611 is provided on the protrusion 641, the lower part of the guide rod 61 is also sleeved with a slide rail sleeve 65, the slide rail sleeve 65 is connected to the second locking seat 51, the slide rail sleeve 65 is provided with a slide hole 651 for the slider 64 to slide, the lower part of the guide rod 61 is also provided with a limiting structure 66 for limiting the slider 64 from separating from the guide rod 61, and the second reset structure 63 includes a second reset spring provided in the slide hole 651 to push the slider 64 downward. The limiting structure 66 can be a nut threadedly connected to the guide rod 61, and of course it can also be a latch or other limiting member. The second locking seat 51 is provided with an installation cavity 50 for placing the second locking block 52, and the second locking seat 51 is also provided with an installation hole 500 that penetrates the second locking seat 51 and can be passed by the guide rod 61 at a position corresponding to the installation cavity 50. The second locking block 52 is provided with an avoidance hole 522 for the guide rod 61 to pass through, an avoidance gap is provided between the avoidance hole 522 and the guide rod 61 , and the second inclined surface 521 is provided on the inner wall of the avoidance hole 522 .

[0038] In one embodiment, the upper end of the guide rod 61 is connected to a first traction block 67, the first slot 71 is disposed on the first traction block 67, and the upper inner wall of the first slot 71 is provided with a fourth inclined surface 671 that can cooperate with the first inclined surface 4211 to push the guide rod 61 upward. The first traction block 67 can be connected to the guide rod 61 by threads, and of course can also be connected by other connection structures such as screw parts and fasteners.

Claims

1. A supporting leg structure of a photographic stand, characterized in that: The utility model comprises a primary leg frame (1), a secondary leg frame (2) and a tertiary leg frame (3), wherein the secondary leg frame (2) is slidably connected to the primary leg frame (1) and can extend from the lower part of the primary leg frame (1), and the tertiary leg frame (3) is slidably connected to the secondary leg frame (2) and can extend from the lower part of the secondary leg frame (2), a first locking structure (4) capable of locking the secondary leg frame (2) on the primary leg frame (1) is provided between the primary leg frame (1) and the secondary leg frame (2), a second locking structure (5) capable of locking the tertiary leg frame (3) on the secondary leg frame (2) is provided between the secondary leg frame (2) and the tertiary leg frame (3), and a linkage structure (6) capable of driving the second locking structure (5) to be locked when the first locking structure (4) is locked is also provided between the first locking structure (4) and the second locking structure (5).

2. The supporting leg structure of a photographic stand according to claim 1, characterized in that: The first locking structure (4) comprises a first connecting seat (41) connected to the secondary leg frame (2), the first connecting seat (41) being connected to a first locking block (42) and a buckle assembly capable of pulling the first locking block (42) to press the primary leg frame (1) onto the first connecting seat (41).

3. The supporting leg structure of a photographic stand according to claim 2, characterized in that: The second locking structure (5) comprises a second locking seat (51) connected to the secondary leg frame (2), and a second locking block (52) is slidably connected to the second locking seat (51) and is capable of pressing the tertiary leg (3) onto the second locking seat (51).

4. The supporting leg structure of a photographic stand according to claim 3, characterized in that: The linkage structure (6) comprises a guide rod (61), a first slot (71) is provided on the upper part of the guide rod (61), a first inclined block (421) is provided on the first locking block (42), a first inclined surface (4211) is provided on the first inclined block (421) and can push the guide rod (61) upward when the first inclined block (421) is inserted into the first slot (71), a second inclined surface (521) is provided on the second locking block (52), and a third inclined surface (611) is provided on the lower part of the guide rod (61) and can cooperate with the second inclined surface (521) when the guide rod (61) moves upward, thereby pushing the second locking block (52) to press the third-level leg tube (3).

5. The supporting leg structure of a photographic stand according to claim 4, characterized in that: The pull button assembly comprises a pull button (81) rotatably connected to the first connecting seat (41) and a traction member (82) capable of pulling the first locking block (42) toward the first-level leg frame (1) when the pull button (81) is engaged, one end of the traction member (82) being connected to the upper part of the pull button (81) and the other end being connected to the first locking block (42).

6. A supporting leg structure of a photographic stand according to claim 4 or 5, characterized in that: A first reset structure (43) is provided between the first locking block (42) and the first connecting seat (41), which can push the first locking block (42) away from the first-stage leg frame (1) when the pull button (81) is released.

7. The supporting leg structure of a photographic stand according to claim 6, characterized in that: A second reset structure (63) is provided between the guide rod (61) and the second locking seat (51), which can reset the guide rod (61) when the pull button (81) is released.

8. The supporting leg structure of a photographic stand according to claim 7, characterized in that: A third reset structure (53) is provided between the second locking block (52) and the second locking seat (51), which can push the second locking block (52) away from the third-level leg tube (3) when the guide rod (61) moves downward.

9. The supporting leg structure of a photographic stand according to claim 8, characterized in that: The lower part of the guide rod (61) is sleeved with a slider (64), the side wall of the slider (64) is provided with a protrusion (641), the third inclined surface (611) is provided on the protrusion (641), the lower part of the guide rod (61) is also sleeved with a slide rail sleeve (65), the slide rail sleeve (65) is connected to the second locking seat (51), a slide hole (651) for the slider (64) to slide is provided in the slide rail sleeve (65), the lower part of the guide rod (61) is also provided with a limiting structure (66) for limiting the slider (64) from separating from the guide rod (61), and the second reset structure (63) includes a second reset spring arranged in the slide hole (651) and capable of pushing the slider (64) downward.

10. The supporting leg structure of a photographic stand according to claim 8, characterized in that: The upper end of the guide rod (61) is connected to a first traction block (67), the first slot (71) is arranged on the first traction block (67), and the upper inner wall of the first slot (71) is provided with a fourth inclined surface (671) which can cooperate with the first inclined surface (4211) to push the guide rod (61) upward.

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