Telescopic locking mechanism of photography supporting device

Abstract

The telescopic locking mechanism of the photography supporting device comprises an upper structural frame and a lower structural frame, and the upper structural frame and the lower structural frame are connected through a fixing rod. A first moving seat capable of moving up and down is arranged on the fixed rod, a first moving rod synchronously moving with the first moving seat is arranged on the first moving seat, the lower end of the first moving rod penetrates through the lower structural frame, and a second moving seat is arranged at the lower end of the first moving rod; a second moving rod capable of moving up and down is arranged on the second moving seat; a first locking mechanism is arranged in the first moving seat, the first locking mechanism comprises an operating part, and the operating part is linked with a pull rod in the first locking mechanism and can pull the pull rod to move. According to the telescopic locking mechanism of the photography supporting device, through operation of one handle, telescopic and locking operation of the supporting legs can be conveniently achieved, the stability of the locking state is high, and the product structural strength is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of photographic and video auxiliary devices, and particularly relates to a telescopic locking mechanism of a photographic support device. Background Art

[0002] Photographic and video auxiliary devices are commonly used equipment, such as support devices like tripods and support frames. In such support devices, generally, there is a telescopic support leg structure. In addition to the conventional sleeve-type telescopic rod structure, in some medium and large-sized high-strength support devices, a more complex telescopic support rod structure is used.

[0003] In such a complex telescopic support rod structure, a matching telescopic locking mechanism is required, which can be conveniently unlocked and locked, and the internal structure needs to be compact and have a strong locking force. The utility model has further designs and improvements in this direction. Summary of the Utility Model

[0004] Aiming at the above deficiencies in the prior art, the utility model provides a telescopic locking mechanism of a photographic support device. Through the operation of a handle, the telescopic and locking operations of the support legs can be conveniently realized, the stability of the locking state is high, and the structural strength of the product is high.

[0005] The utility model is solved by the following technical solutions.

[0006] The telescopic locking mechanism of a photographic support device includes an upper structural frame and a lower structural frame, and the upper structural frame and the lower structural frame are connected by a fixed rod; a first moving seat that can move up and down is arranged on the fixed rod, a first moving rod that moves synchronously with the first moving seat is arranged on the first moving seat, the lower end of the first moving rod passes through the lower structural frame, and a second moving seat is arranged at the lower end; a second moving rod that can move up and down is arranged on the second moving seat; a first locking mechanism is arranged in the first moving seat, the first locking mechanism includes an operating member, the operating member is linked with a pull rod in the first locking mechanism and can pull the pull rod to move; when the pull rod moves, it drives a pressing plate to move and press against the fixed rod, realizing the positioning between the first moving seat and the fixed rod; when the pull rod moves, it also drives a lifting member to move up, and the lifting member drives a lever member to tilt up and lift a connecting rod during the upward movement; a second locking mechanism is arranged in the second moving seat, the second locking mechanism includes a lifting block arranged at the lower end of the connecting rod and a pressing block that cooperates with the lifting block; when the connecting rod is lifted, it drives the lifting block to move up and presses the pressing block against the second moving rod, realizing the positioning between the second moving rod and the second moving seat; during the operation process, the operating member unlocks the pressing plate and the pressing block synchronously, or makes the pressing plate and the pressing block perform the pressing operation synchronously.

[0007] The telescopic locking mechanism in the present application is operated by manually prying the operating piece to pull the pull rod to move. In the unlocked state: the pull rod moves backward under the action of the spring or other elastic force. At this time, the pressure plate is in a relaxed state and is not pressed on the fixed rod. Therefore, the first movable seat can move on the fixed rod and is in an active state. At the same time, the lifting block is also in the lower position, the lever piece is not tilted, the lifting block is in the lower position, and the pressure block is not pressed on the second movable rod. That is, in this state, the second movable rod can move in the second movable seat, and the telescopic adjustment of the support device can be realized in this state.

[0008] Move the operating part to the locked state: the pull rod is pulled toward the operating part.

[0009] At this time, the pressure plate is also pulled, so that the pressure plate is pressed on the fixed rod, and the first movable seat and the fixed rod are in a locked state. At the same time, the lifting block also moves up, one end of the lever member is tilted, and the lifting block is also moved up by pulling the connecting rod. During the upward movement, the pressure block is driven to move horizontally, so that the pressure block is pressed on the second movable rod. That is, in this state, the second movable rod and the second movable seat are in a locked state. In this state, the support device can be locked for stable support.

[0010] In a preferred embodiment, the operating member is an operating wrench, which is rotatably connected to a shaft rod on the pull rod and rests on an assembly part, and the assembly part is arranged on a first movable seat; the rotating assembly structure of the operating wrench has an eccentric structure, so that the pull rod can be pulled to move by the shaft rod during its rotation, which is convenient for operation.

[0011] In a preferred embodiment, a lifting protrusion is provided on the inner side of the assembly part, and the lifting protrusion and the lifting member are matched through an inclined guide. When the pull rod moves, the lifting member is driven to move synchronously, and the lifting member can be moved upward through the inclined guide. The assembly structure is compact, and one end of the lever member can be stably tilted while the pull rod is pulled to achieve linkage.

[0012] In a preferred embodiment, the lifting member is arranged in an assembly cavity below the lever member.

[0013] In a preferred embodiment, one end of the lever member is rotatably connected to the first movable seat via a rotating shaft, and the other end of the lever member is a tilting end, which is connected to a connecting rod and can be threadedly assembled.

[0014] In a preferred embodiment, the connecting rod passes through the first moving rod and is connected to the lifting block to achieve linkage.

[0015] In a preferred embodiment, the pressing plate is provided with an adjusting nut, which is threadedly assembled on the tail end of the pull rod and can adjust the tightness of the pressing state.

[0016] In a preferred embodiment, the fixed rods are two symmetrically arranged ones, the first moving rods are two symmetrically arranged ones located inside the two fixed rods, and the second moving rod is one of the two first moving rods. The overall structure is compact and has high supporting strength.

[0017] In a preferred embodiment, a guiding sliding sleeve is provided on the second moving rod. Both ends of the guiding sliding sleeve have contours matching the outer wall of the first moving rod, which plays a good guiding role when the second moving rod moves up and down.

[0018] Compared with the prior art, the present utility model has the following beneficial effects: It provides a telescopic locking mechanism for a photographic support device. Through the operation of a single handle, the telescoping and locking operations of the support feet can be conveniently achieved. The locking state has high stability and the product has high structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective view of a photographic support device in the present utility model.

[0020] Figure 2 It is a schematic diagram of the support device in the present utility model and a partial structure thereof enlarged Figure 1 .

[0021] Figure 3 It is a schematic diagram of the support device in the present utility model and a partial structure thereof enlarged Figure 2 .

[0022] Figure 4 It is a perspective view of the support device in the present utility model with the housing structure of the moving seat omitted.

[0023] Figure 5 It is a perspective view of the support device in the present utility model with the housing structure of the moving seat and the pressing plate omitted Figure 1 .

[0024] Figure 6 It is a perspective view of the support device in the present utility model with the housing structure of the moving seat and the pressing plate omitted Figure 2 .

[0025] Figure 7 It is a perspective view of a partial structure in the present utility model Figure 1 .

[0026] Figure 8 It is a perspective view of a partial structure in the present utility model Figure 2 .

[0027] Figure 9 It is a perspective view of the lever member in the present utility model.

[0028] Figure 10 This is a perspective view of the fitting in the present utility model.

[0029] Figure 11 This is a perspective Figure 1 .

[0030] Figure 12 This is a perspective Figure 2 .

[0031] Figure 13 This is a perspective view of the housing of the second moving seat in the present utility model. Detailed implementation manners

[0032] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0033] In the following implementation manners, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The implementation manners described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0034] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and therefore should not be construed as a limitation to the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: installation, connection, connection, etc. should be understood in a broad sense, and those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

[0035] See Figure 1 , a photographic support device involved in the present utility model, the photographic support device includes a support platform 4 at the upper part, and three telescopic support structures 5. The upper part of the support structure 5 is rotatably connected to the side part of the support platform 4 through an upper structural frame 41. A support base 6 is provided at the lower part of the support structure 5, and a telescopic locking mechanism is provided on the support structure 5.

[0036] Specifically, from Figures 2 to 13As can be seen, the telescopic locking mechanism in this application specifically includes an upper structural frame 41 and a lower structural frame 2, and the upper structural frame 41 and the lower structural frame 2 are connected by a fixing rod 81; a first moving seat 1 that can move up and down is provided on the fixing rod 81, and a first moving rod 82 that moves synchronously with the first moving seat 1 is provided on the first moving seat 1. The lower end of the first moving rod 82 passes through the lower structural frame 2, and a second moving seat is provided at the lower end thereof; a second moving rod 83 that can move up and down is provided on the second moving seat 3; a first locking mechanism is provided in the first moving seat 1, and the first locking mechanism includes an operating member 11, and the operating member 11 is linked with a pull rod 16 in the first locking mechanism and can pull the pull rod 16 to move; when the pull rod 16 moves, it drives a pressing plate 12 to move and press against the fixing rod 81, so as to realize the positioning between the first moving seat 1 and the fixing rod 81.

[0037] Moreover, in this application, when the pull rod 16 moves, it also drives a lifting member 145 to move upward, and during the upward movement of the lifting member 145, it drives a lever member 14 to tilt and lift a connecting rod 15; a second locking mechanism is provided in the second moving seat 3, and the second locking mechanism includes a lifting block 31 provided at the lower end of the connecting rod 15 and a pressing block 32 that cooperates with the lifting block 31; when the connecting rod 15 is lifted, it drives the lifting block 31 to move upward and presses the pressing block 32 against the second moving rod 83, so as to realize the positioning between the second moving rod 83 and the second moving seat 3; during the operation of the operating member 11, the pressing plate 12 and the pressing block 32 are unlocked synchronously, or the pressing plate 12 and the pressing block 32 are pressed tightly synchronously.

[0038] In this application, the connecting rod 15 passes through the first moving rod 82 and is connected to the lifting block 31 to realize linkage. An adjusting nut 121 is provided on the pressing plate 12, and the adjusting nut 121 is threadedly assembled at the tail end of the pull rod 16, and the tightness of the pressing state can be adjusted.

[0039] In a specific embodiment of this application, the operating member 11 is an operating wrench, and the operating wrench is rotatably connected to a shaft rod 165 on the pull rod 16 and abuts against a fitting 13, and the fitting 13 is provided on the first moving seat 1, and the pull rod 16 passes through a hole in the fitting 13; an eccentric structure is provided at the rotational assembly structure of the operating wrench, so that the pull rod 16 can be pulled to move through the shaft rod 165 during its rotation, and the operation is convenient.

[0040] From the attached Figure 6 to the attached Figure 8It can be seen that in this issue, a lifting protrusion 135 is provided on the inner side of the assembly part 13, and the lifting protrusion 135 cooperates with the lifting member 145 through an inclined surface guide, and the lifting member 145 can be driven to move synchronously when the pull rod 16 moves, and the lifting member 145 can be moved upward through the inclined surface guide. The assembly structure is compact, and one end of the lever member 14 can be stably tilted while the pull rod 16 is pulled, so as to achieve linkage. In addition, the lifting member 145 is arranged in the assembly cavity 146 below the lever member 14.

[0041] In the present application, one end of the lever member 14 is rotatably connected to the first movable seat 1 via a rotating shaft 141, and the other end of the lever member 14 is a tilting end 142, to which a connecting rod 15 is connected, which can be threadedly assembled.

[0042] As can be seen from the accompanying drawings, in the structure of the present application, the fixed rods 81 are two symmetrically arranged, the first movable rods 82 are two symmetrically arranged inside the two fixed rods 81, and the second movable rod 83 is one of the two first movable rods 82. The overall structure is compact and has high support strength. In addition, the second movable rod 83 is provided with a guide sleeve 831, and the two ends of the guide sleeve 831 have a profile matching the outer wall of the first movable rod 82, which plays a good guiding role when the second movable rod 83 moves up and down.

[0043] From the attached Figure 11 To Attachment Figure 13 It can be seen that the first movable seat 1 and the second movable seat 3 are both provided with an internal cavity for assembling the internal structure, thereby ensuring the compactness of the overall structure and the aesthetic appearance.

[0044] It can be seen from the above description that the telescopic locking mechanism in the present application, when operating, can pull the pull rod 16 to move by manually bending the operating member 11, and in the unlocked state: the pull rod 16 moves backward under the action of the spring or other elastic force, and the pressure plate 12 is in a relaxed state at this time, and is not pressed on the fixed rod 81, so the first movable seat 1 can move on the fixed rod 81 and is in an active state. At the same time, the lifting block 31 is also in the lower position, the lever member 14 is not tilted, the lifting block 31 is in the lower position, and the pressure block 32 is not pressed on the second movable rod 83, that is, in this state, the second movable rod 83 can move in the second movable seat 3, and the telescopic adjustment of the support device can be realized in this state.

[0045] The operating member 11 is moved to the locked state: at this time, the pull rod 16 is pulled toward the operating member 11,

[0046] At this time, the pressing plate 12 is also pulled, so that the pressing plate 12 presses on the fixed rod 81, and the first moving seat 1 and the fixed rod 81 are in a locked state. At the same time, at this time, the lifting block 31 also moves upward, one end of the lever member 14 tilts up, and the lifting block 31 is pulled to move upward through the connecting rod 15. During the upward movement, the pressing block 32 is driven to move horizontally, so that the pressing block 32 presses on the second moving rod 83, that is, in this state, the second moving rod 83 and the second moving seat 3 are in a locked state. In this state, the locking of the support device can be realized for stable support.

[0047] As described above, the present invention provides a telescopic locking mechanism for a photographic support device. Through the operation of a handle, the telescopic and locking operations of the support feet can be conveniently realized, the locking state has high stability, and the product has high structural strength.

[0048] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that are easily conceivable by those skilled in the art to this technology fall within the protection scope of the present invention.

Claims

1. Telescopic locking mechanism of a photographic support device, comprising an upper structural frame (41) and a lower structural frame (2), which are connected by a fixing rod (81) between the upper structural frame (41) and the lower structural frame (2); A first moving seat (1) that can move up and down is provided on the fixing rod (81). A first moving rod (82) that moves synchronously with the first moving seat (1) is provided on the first moving seat (1). The lower end of the first moving rod (82) passes through the lower structural frame (2), and a second moving seat (3) is provided at the lower end; A second moving rod (83) that can move up and down is provided on the second moving seat (3); It is characterized in that: A first locking mechanism is provided in the first moving seat (1). The first locking mechanism includes an operating member (11). The operating member (11) is linked with a pull rod (16) in the first locking mechanism and can pull the pull rod (16) to move. When the pull rod (16) moves, it drives a pressing plate (12) to move and press against the fixing rod (81), realizing the positioning between the first moving seat (1) and the fixing rod (81); When the pull rod (16) moves, it also drives a lifting member (145) to move upward. During the upward movement of the lifting member (145), it drives a lever member (14) to tilt and lift a connecting rod (15); A second locking mechanism is provided in the second moving seat (3). The second locking mechanism includes a lifting block (31) provided at the lower end of the connecting rod (15) and a pressing block (32) cooperating with the lifting block (31). When the connecting rod (15) is lifted, it drives the lifting block (31) to move upward and presses the pressing block (32) against the second moving rod (83), realizing the positioning between the second moving rod (83) and the second moving seat (3); During the operation of the operating member (11), the pressing plate (12) and the pressing block (32) are unlocked synchronously, or the pressing plate (12) and the pressing block (32) are pressed tightly synchronously.

2. The telescopic locking mechanism of the photographic support device according to claim 1, characterized in that, The operating member (11) is an operating wrench, which is rotatably connected to a shaft rod (165) on the pull rod (16) and abuts against a fitting (13). The fitting (13) is provided on the first moving seat (1). The rotational assembly structure of the operating wrench has an eccentric structure, so that it can pull the pull rod (16) to move through the shaft rod (165) during its rotation.

3. The telescopic locking mechanism of the photographic support device according to claim 2, characterized in that, A lifting convex block (135) is provided inside the fitting (13). The lifting convex block (135) is in inclined plane guiding cooperation with the lifting member (145). When the pull rod (16) moves, it drives the lifting member (145) to move synchronously, and the upward movement of the lifting member (145) can be realized through the inclined plane guiding cooperation.

4. The telescopic locking mechanism of the photographic support device according to claim 3, characterized in that, The lifting member (145) is provided in an assembly cavity (146) below the lever member (14).

5. The telescopic locking mechanism of the photographic support device according to claim 1, characterized in that, One end of the lever member (14) is rotatably connected in the first moving seat (1) through a rotating shaft (141). The other end of the lever member (14) is a tilting end (142), and a connecting rod (15) is connected to the tilting end (142).

6. The telescopic locking mechanism of the photographic support device according to claim 4, characterized in that, The connecting rod (15) passes through the first moving rod (82) and is connected to the lifting block (31).

7. The telescopic locking mechanism of the photographic support device according to claim 1, characterized in that, An adjusting nut (121) is provided on the pressing plate (12).

8. The telescopic locking mechanism of the photographic support device according to any one of claims 1 to 7, characterized in that, The fixed rods (81) are two symmetrically arranged ones, the first moving rods (82) are two symmetrically arranged ones provided inside the two fixed rods (81), and the second moving rod (83) is one of the two first moving rods (82).

9. The telescopic locking mechanism of the photographic support device according to claim 8, characterized in that, A guiding sliding sleeve (831) is provided on the second moving rod (83).

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