Supporting leg assembly and photographing supporting frame

Abstract

The utility model discloses a supporting leg assembly. A first supporting leg component, a second supporting leg component and a third supporting leg component are movably connected and can move in the axial direction. The first locking and releasing assembly is used for locking or releasing the first supporting leg component and the second supporting leg component; the second locking and releasing assembly is used for locking or releasing the second supporting leg component and the third supporting leg component; the driving component is used for driving the first locking and releasing assembly to lock or release the first supporting leg component and the second supporting leg component; the linkage component and the driving component are arranged in a split mode, and the linkage component is connected with the driving component and the second locking and releasing assembly so as to drive the second locking and releasing assembly to lock or release the second supporting leg component and the third supporting leg component when the driving component drives the first locking and releasing assembly to move. According to the supporting leg assembly, the first supporting leg component, the second supporting leg component and the third supporting leg component can be locked or released at the same time, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic equipment, in particular to a supporting foot assembly and a photographic supporting frame. Background Art

[0002] In order to improve the video recording effect, video recording equipment such as mobile phones, tablet computers or cameras usually need to be equipped with a photography support stand when recording or photographing, so as to adjust the height of the video recording equipment and improve the stability of the photographic equipment when in use.

[0003] A photography support generally includes a plurality of support leg assemblies, each of which has a plurality of mutually movable support leg components, and a locking assembly is provided between each two support leg components. The support leg components of the existing support leg assemblies are locked separately, and each support leg component needs to be manually stretched to a desired length, and the locking assembly between each support leg component needs to be locked separately, which is very inconvenient to operate. Utility Model Content

[0004] The main purpose of the utility model is to provide a support leg assembly and a photographic support frame, aiming to solve the technical problem of inconvenient locking and releasing operations of the existing support leg assembly.

[0005] To achieve the above-mentioned purpose, the utility model provides a support foot assembly for use in a photographic support frame, the support foot assembly comprising:

[0006] first leg member;

[0007] a second supporting foot member, wherein the second supporting foot member is movably connected to the first supporting foot member and is movable relative to the first supporting foot member along an axial direction of the first supporting foot member;

[0008] A first locking and releasing assembly, the first locking and releasing assembly being connected between the first supporting leg member and the second supporting leg member, and being used for locking or releasing the first supporting leg member and the second supporting leg member;

[0009] a third supporting foot member, wherein the third supporting foot member is movably connected to the second supporting foot member and is movable relative to the second supporting foot member along an axial direction of the second supporting foot member;

[0010] a second locking and releasing assembly, the second locking and releasing assembly being connected between the second supporting leg member and the third supporting leg member, and being used for locking or releasing the second supporting leg member and the third supporting leg member;

[0011] a driving member connected to the first locking and releasing assembly to drive the first locking and releasing assembly to lock or release the first supporting leg member and the second supporting leg member;

[0012] A linkage component is separately arranged from the driving component, and the linkage component connects the driving component and the second locking and releasing group, so as to drive the second locking and releasing component to lock or release the second supporting leg component and the third supporting leg component when the driving component drives the first locking and releasing component to move.

[0013] In some embodiments, the support foot assembly further comprises:

[0014] A clutch is connected between the driving member and the first locking assembly to engage the driving member and the first locking assembly and to separate the driving member and the first locking assembly.

[0015] In some embodiments, the first locking and releasing component includes:

[0016] a first connecting member connected to the clutch to drive the first connecting member to move axially relative to the clutch under the driving action of the driving member;

[0017] A first locking member, wherein the first locking member is connected to the first supporting leg member;

[0018] A first guide member, wherein the first guide member is connected to the first connecting member, the first guide member can be slidably mounted outside the second supporting leg member, and the first guide member can move relative to the first locking member along the axial direction of the second supporting leg member under the driving action of the driving member to lock or release the first supporting leg member and the second supporting leg member.

[0019] In some embodiments, the second locking and releasing component comprises:

[0020] a second connecting member, the second connecting member being connected to the clutch through the linkage member;

[0021] a third connecting member, the third connecting member cooperates with the second connecting member, so that when the driving member drives the first locking and releasing assembly to move, the second connecting member is driven by the clutch to rotate to drive the third connecting member to move axially relative to the second connecting member;

[0022] a second locking member, wherein the second locking member is connected to the second leg member;

[0023] A second guide member, the second guide member is connected to the third connecting member, the second guide member can be slidably mounted outside the third supporting leg component, and the second guide member can move relative to the second locking member along the axial direction of the third supporting leg component under the driving action of the clutch to lock or release the second supporting leg component and the third supporting leg component.

[0024] In some embodiments, a connecting passage penetrating to the external space is axially opened on the inner wall of the first connecting member, the aperture of the connecting passage is larger than the diameter of the linkage member, one end of the linkage member is connected to the clutch, and the other end of the linkage member passes through the connecting passage and is connected to the second connecting member.

[0025] In some embodiments, the linkage member is a non-circular elongated structure, the clutch is provided with a first non-circular hole, the second connecting member is provided with a second non-circular hole, the second non-circular hole is arranged opposite to the first non-circular hole, the linkage member is respectively penetrated by the first non-circular hole and the second non-circular hole, and the linkage member is respectively connected to the first non-circular hole and the second non-circular hole.

[0026] In some embodiments, the inner wall of the first locking member is provided with a first pressing opening which penetrates to the external space, the outer wall of the first locking member is provided with a first locking slope, one end of the first locking member is sleeved on the outside of the first supporting leg member, and one end of the first locking member is for the second supporting leg member to slide into;

[0027] The inner wall of the first guide member is provided with a first locking opening which passes through the external space, and the outer wall of the first guide member is provided with a second locking slope. The first guide member is slidably mounted on the outside of the second support leg member through the first locking opening. The first guide member can move relative to the first locking member along the axial direction of the second support leg member and enter the first pressing opening, so that the second locking slope cooperates with the first locking slope to lock the first support leg member and the second support leg member.

[0028] In some embodiments, the inner wall of the second locking member is provided with a second pressing opening which penetrates to the external space, the outer wall of the second locking member is provided with a third locking slope, one end of the second locking member is sleeved on the outside of the second supporting leg member, and one end of the second locking member is for the third supporting leg member to slide into;

[0029] The inner wall of the second guide member is provided with a second locking opening which passes through the external space, and the outer wall of the second guide member is provided with a fourth locking slope. The second guide member is slidably mounted outside the third support leg member through the second locking opening. The second guide member can move relative to the second locking member along the axial direction of the third support leg member and enter the second pressing opening, so that the third locking slope cooperates with the fourth locking slope to lock the second support leg member and the third support leg member.

[0030] In some embodiments, the first guide member is a tapered sleeve, and the outer wall of the tapered sleeve is provided with at least one first slot opened in the axial direction; and / or,

[0031] The second guide member is a tapered sleeve, and the outer wall of the tapered sleeve is provided with at least one second slot opened in the axial direction; and / or,

[0032] The second connecting member is a threaded sleeve, and the third connecting member is a screw.

[0033] In some embodiments, the second supporting leg member can be movably disposed in the first supporting leg member, and the third supporting leg member can be movably disposed in the second supporting leg member; and / or,

[0034] There are at least two first supporting legs, and the at least two first supporting legs are arranged in parallel and spaced apart from each other.

[0035] There are at least two second supporting legs, and the at least two second supporting legs are arranged in parallel and spaced apart from each other.

[0036] At least two third supporting legs are provided, and the at least two third supporting legs are arranged in parallel and spaced apart from each other.

[0037] In some embodiments, the clutch comprises:

[0038] An active member, used to be connected to the driving member so as to rotate under the driving of the driving member;

[0039] A driven component, used to be connected to the first locking and releasing component and the linking component respectively, so as to drive the first locking and releasing component and the linking component to move respectively;

[0040] A clutch control component, wherein the clutch control component is movably disposed between the active component and the driven component;

[0041] The clutch control assembly is used to engage the active component and the driven component to allow the active component to drive the driven component, the first lock and release assembly, and the linkage component to move under the drive of the driving component; and the clutch control assembly is used to separate the active component and the driven component to prevent the active component from driving the driven component, the first lock and release assembly, and the linkage component to move under the drive of the driving component.

[0042] The utility model also provides a photographic support frame, comprising a support seat and at least three support leg assemblies as described above, wherein the support seat is respectively connected to the first support leg components of the at least three support leg assemblies;

[0043] Wherein, the driving component comprises:

[0044] A driving member, the driving member is mounted on the supporting seat;

[0045] A transmission mechanism connecting the driving member and the first locking and releasing assembly;

[0046] The driving member can drive the first locking and releasing assembly and the linkage member to move through the transmission mechanism.

[0047] In some embodiments, the transmission mechanism includes a rack, a gear and a transmission member, the rack is connected to the driving member and slides in a horizontal direction under the drive of the driving member, the gear is meshingly connected to the rack, one end of the transmission member is connected to the gear, and the other end of the transmission member is connected to the first locking and releasing assembly, the driving member drives the rack to slide in the horizontal direction, and drives the transmission member, the first locking and releasing assembly and the linkage member to move.

[0048] In some embodiments, the driving member comprises:

[0049] A master oil cylinder, the master oil cylinder is mounted on the support seat;

[0050] A branch cylinder is connected to the main cylinder, and the branch cylinder is installed on the support seat. The branch cylinder includes a first piston for driving the first locking and releasing assembly and the second locking and releasing assembly. The main cylinder is used to control the locking and unlocking of the first locking and releasing assembly and the second locking and releasing assembly.

[0051] In some embodiments, the support cylinder further includes a mounting shell and a first piston rod, the mounting shell is configured with a sliding groove, the first piston is slidably disposed in the sliding groove and divides the sliding groove into a first cavity and a second cavity, the first piston rod is connected to the first piston, and the rack is connected to the first piston rod;

[0052] The master cylinder comprises a sealing shell, a second piston, and a second piston rod. The second piston is slidably disposed in the sealing shell and divides the interior of the sealing shell into a third cavity and a fourth cavity. The third cavity and the fourth cavity are respectively used to contain fluids. The second piston rod is connected to the second piston.

[0053] The third cavity is connected to the first cavity so that the fluid can push the first piston to move to the left end; the fourth cavity is connected to the second cavity so that the fluid can push the first piston to move to the right end.

[0054] In some embodiments, the driving member includes a motor, which is installed on the support seat. The output end of the motor is connected to a screw rod, and the rack is threadedly connected to the screw rod. The motor is used to control the rotation of the screw rod, thereby controlling the rack to slide in the horizontal direction.

[0055] The supporting foot assembly of the utility model is separately arranged from the driving member by setting a linkage component, and the linkage component is connected to the driving member and the second locking and releasing component, so that when the driving member drives the first locking and releasing component to move, it drives the second locking and releasing component to lock or release the second supporting foot component and the third supporting foot component. That is, the supporting foot assembly of the utility model can lock or release the first supporting foot component, the second supporting foot component and the third supporting foot component at the same time, and the operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is a structural schematic diagram of a photographic support frame in one embodiment of the utility model;

[0057] Figure 2 It is a cross-sectional schematic diagram of a part of a supporting foot assembly in one embodiment of the utility model;

[0058] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0059] Figure 4 It is a cross-sectional schematic diagram of a part of a supporting foot assembly in one embodiment of the utility model;

[0060] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0061] Figure 6 for Figure 4 Enlarged view of point C in the middle;

[0062] Figure 7 This is a schematic structural diagram of a first guide member in an embodiment of the utility model;

[0063] Figure 8 This is a schematic structural diagram of a second guide member in an embodiment of the utility model;

[0064] Fig. 9 This is a structural schematic diagram of a portion of a supporting foot assembly in one embodiment of the utility model;

[0065] Fig.10 It is a cross-sectional schematic diagram of a master oil cylinder in one embodiment of the utility model;

[0066] Fig.11 It is a cross-sectional schematic diagram of a supporting oil cylinder in one embodiment of the utility model;

[0067] Fig.12 It is a structural schematic diagram of a part of a supporting foot assembly in another embodiment of the utility model.

[0068] Description of Figure Numbers:

[0069]

[0070]

[0071] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the scheme in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0073] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0074] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0075] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0076] The utility model provides a support foot assembly 100, which is used in a photographic support frame 200. Specifically, the support foot assembly 100 is mainly used as a support foot of the photographic support frame 200, so as to provide support when the photographic support frame 200 is placed on a placement surface such as the ground. The photographic support frame 200 may include multiple (such as three) support foot assemblies 100, and the multiple support foot assemblies 100 cooperate with each other to provide support. The photographic support frame 200 is used to install photographic equipment, such as a camera, a mobile phone, or a monitor.

[0077] Please refer to Figures 1 to 3, the support foot assembly 100 comprises:

[0078] A first foot member 10;

[0079] A second supporting leg member 20, the second supporting leg member 20 can be movably connected to the first supporting leg member 10 and can move relative to the first supporting leg member 10 along the axial direction of the first supporting leg member 10;

[0080] A first locking and releasing assembly 30, which is connected between the first supporting leg member 10 and the second supporting leg member 20, and is used to lock or release the first supporting leg member 10 and the second supporting leg member 20;

[0081] A third supporting leg member 40, the third supporting leg member 40 can be movably connected to the second supporting leg member 20 and can move relative to the second supporting leg member 20 along the axial direction of the second supporting leg member 20;

[0082] A second locking and releasing assembly 50, which is connected between the second supporting leg member 20 and the third supporting leg member 40, and is used to lock or release the second supporting leg member 20 and the third supporting leg member 40;

[0083] A driving member 60, the driving member 60 is connected to the first locking and releasing assembly 30, and is used to drive the first locking and releasing assembly 30 to lock or release the first supporting leg member 10 and the second supporting leg member 20;

[0084] The linkage member 80 is separately arranged from the driving member 60, and the linkage member 80 connects the driving member 60 and the second locking and releasing component 50, so as to drive the second locking and releasing component 50 to lock or release the second support leg component 20 and the third support leg component 40 when the driving member 60 drives the first locking and releasing component 30 to move.

[0085] The support foot assembly 100 involved in this embodiment has a support height adjustment function. Specifically, the first support foot member 10 and the second support foot member 20 are locked or unlocked by the first locking and releasing assembly 30, and the second support foot member 20 and the third support foot member 40 are locked or unlocked by the second locking and releasing assembly 50. When the first support foot member 10 and the second support foot member 20 are unlocked by the first locking and releasing assembly 30, the user can operate the second support foot member 20 to telescopically move relative to the first support foot member 10, and adjust the support height of the support foot assembly 100 by changing the telescopic length of the first support foot member 10; similarly, the third support foot member 40 can be operated to telescopically move relative to the second support foot member 20, and the support height of the support foot assembly 100 can be adjusted by changing the telescopic length of the third support foot member 40. When the support height adjustment is completed or no adjustment is needed, the driving component 60 drives the first locking and releasing component 30 to lock the first support leg component 10 and the second support leg component 20. At the same time, the linkage component 80 drives the second locking and releasing component 50 to lock the second support leg component 20 and the third support leg component 40 when the driving component 60 drives the first locking and releasing component 30 to move.

[0086] The supporting foot assembly 100 of the utility model is separately arranged from the driving member 60 by setting a linkage member 80. The linkage member 80 connects the driving member 60 and the second locking and releasing member 50, so as to drive the second locking and releasing member 50 to lock or release the second supporting foot member 20 and the third supporting foot member 40 when the driving member 60 drives the first locking and releasing member 30 to move. That is, the supporting foot assembly 100 of the utility model can lock or release the first supporting foot member 10, the second supporting foot member 20 and the third supporting foot member 40 at the same time, and the operation is convenient and quick.

[0087] In some embodiments, the second support leg component 20 can be movably inserted into the first support leg component 10, and the third support leg component 40 can be movably inserted into the second support leg component 20, so that the three can slide relative to each other within a certain range, making it convenient for users to adjust the height of the support leg assembly 100.

[0088] In some embodiments, at least two first support leg components 10 are provided, and at least two first support legs are arranged in parallel and spaced opposite to each other; at least two second support leg components 20 are provided, and at least two second support legs are arranged in parallel and spaced opposite to each other; at least two third support leg components 40 are provided, and at least two third support legs are arranged in parallel and spaced opposite to each other. In this way, the supporting stability of the supporting leg assembly 100 can be increased, it is not easy to shake, and the structure is stable and durable.

[0089] In some embodiments, the supporting foot assembly 10 also includes a clutch 70, which is connected between the driving member 60 and the first locking and releasing assembly 30 to engage the driving member 60 and the first locking and releasing assembly 30. At this time, the driving member 60 can drive the first locking and releasing assembly 30 to lock or release the first supporting foot member 10 and the second supporting foot member 20, so as to adjust the height of the supporting foot assembly 100; the clutch 70 is also used to separate the driving member 60 and the first locking and releasing assembly 30 to prevent the driving member 60 from driving the first locking and releasing assembly 30 to lock or release the first supporting foot member 10 and the second supporting foot member 20, thereby ensuring stable support of the supporting foot assembly 100.

[0090] Please refer to Figures 4 to 7 , the first locking and releasing assembly 30 comprises:

[0091] A first connecting member 31, the first connecting member 31 is connected to the clutch 70, so as to drive the first connecting member 31 to move axially relative to the clutch 70 under the driving action of the driving member 60;

[0092] A first locking member 32, the first locking member 32 is connected to the first leg member 10;

[0093] The first guide member 33 is connected to the first connecting member 31, and the first guide member 33 can be slidably mounted outside the second supporting leg component 20. Under the driving action of the driving member 60, the first guide member 33 can move relative to the first locking member 32 along the axial direction of the second supporting leg component 20 to lock or release the first supporting leg component 10 and the second supporting leg component 20.

[0094] In this embodiment, the first locking member 32 is stationary, and the driving member 60 drives the first guide member 33 to move along the axial direction of the second support leg member 20 relative to the first locking member 32, and then squeezes or loosens between the first locking member 32, thereby locking or releasing the first support leg member 10 and the second support leg member 20.

[0095] Specifically, the inner wall of the first locking member 32 is provided with a first pressing opening that passes through the external space, and the outer wall of the first locking member 32 is provided with a first locking slope 322. One end of the first locking member 32 is sleeved on the outside of the first leg member 10, and one end of the first locking member 32 is for the second leg member 20 to slide into;

[0096] The inner wall of the first guide member 33 is provided with a first locking opening 331 which passes through to the external space, and the outer wall of the first guide member 33 is provided with a second locking slope 332. The first guide member 33 is slidably mounted on the outside of the second support leg component 20 through the first locking opening 331. The first guide member 33 can move relative to the first locking member 32 along the axial direction of the second support leg component 20 and enter the first pressing opening, so that the second locking slope 332 cooperates with the first locking slope 322 to lock the first support leg component 10 and the second support leg component 20.

[0097] In this embodiment, the first guide member 33 is a conical sleeve, and the outer wall of the conical sleeve is provided with at least one first groove 333 opened along the axial direction, that is, the first guide member 33 is a cone with a diameter gradually increasing or decreasing from bottom to top, and has a certain elastic deformation, and can be locked or loosened under the action of the first locking member 32.

[0098] Please refer to Figures 4 to 6 as well as Figure 8 , the second locking and releasing assembly 50 comprises:

[0099] A second connecting member 51, the second connecting member 51 is connected to the clutch 70 through a linkage member 80;

[0100] The third connecting member 52 cooperates with the second connecting member 51 so that when the driving member 60 drives the first locking and releasing assembly 30 to move, the second connecting member 51 is driven by the clutch 70 to rotate to drive the third connecting member 52 to move axially relative to the second connecting member 51;

[0101] A second locking member 53, the second locking member 53 is connected to the second supporting leg member 20;

[0102] The second guide member 54 is connected to the third connecting member 52. The second guide member 54 can be slidably mounted outside the third support leg component 40, and the second guide member 54 can move relative to the second locking member 53 along the axial direction of the third support leg component 40 under the driving action of the clutch 70 to lock or release the second support leg component 20 and the third support leg component 40.

[0103] In this embodiment, the second locking member 53 is stationary and can only drive the second guide member 54 to move under the driving action of the clutch 70, so as to move relative to the second locking member 53 along the axial direction of the third support leg component 40, and squeeze or release the second locking member 53, thereby locking or releasing the second support leg component 20 and the third support leg component 40.

[0104] Specifically, the inner wall of the second locking member 53 is provided with a second pressing opening that penetrates to the external space, and the outer wall of the second locking member 53 is provided with a third locking slope 532. One end of the second locking member 53 is sleeved on the outside of the second leg member 20, and one end of the second locking member 53 is for the third leg member 40 to slide into;

[0105] The inner wall of the second guide member 54 is provided with a second locking opening 541 which passes through the external space, and the outer wall of the second guide member 54 is provided with a fourth locking slope 542. The second guide member 54 is slidably mounted on the outside of the third support leg component 40 through the second locking opening 541. The second guide member 54 can move relative to the second locking member 53 along the axial direction of the third support leg component 40 and enter the second pressing opening, so that the third locking slope 532 cooperates with the fourth locking slope 542 to lock the second support leg component 20 and the third support leg component 40.

[0106] In this embodiment, the second guide member 54 is a conical sleeve, and the outer wall of the conical sleeve is provided with at least one second groove 543 opened along the axial direction, that is, the second guide member 54 is a cone with a diameter gradually increasing or decreasing from bottom to top, and has a certain elastic deformation, and can be locked or loosened under the action of the first locking member 32.

[0107] In this embodiment, a connecting channel 311 is axially opened on the inner wall of the first connecting member 31 and passes through the external space. The aperture of the connecting channel 311 is larger than the diameter of the linking member 80. One end of the linking member 80 is connected to the clutch 70, and the other end of the linking member 80 is penetrated by the connecting channel 311 and connected to the second connecting member 51, so that the linking member 80 can connect the clutch 70 and the second connecting member 51, so that the second connecting member 51 can rotate under the drive of the clutch 70 and the linking member 80.

[0108] In some embodiments, the linkage member 80 is a non-circular elongated structure, the clutch 70 is provided with a first non-circular hole, the second connecting member 51 is provided with a second non-circular hole, the second non-circular hole is arranged opposite to the first non-circular hole, the linkage member 80 is respectively penetrated by the first non-circular hole and the second non-circular hole, and the linkage member 80 is respectively connected to the first non-circular hole and the second non-circular hole.

[0109] In this embodiment, the first non-circular hole and the second non-circular hole can be polygonal holes, specifically rectangular holes. Correspondingly, the linkage member 80 is a non-circular strip structure, which can be a polygonal strip structure, specifically a rectangular strip structure. The combination of the rectangular strip structure and the rectangular hole can stably connect the clutch 70, the linkage member 80 and the second connecting member 51, so that the second connecting member 51 can rotate synchronously under the drive of the clutch 70 and the linkage member 80, thereby realizing the synchronous locking and synchronous release of the first locking and releasing assembly 30 and the second locking and releasing assembly 50.

[0110] In this embodiment, the second connecting member 51 is a threaded sleeve, and the third connecting member 52 is a screw. By utilizing the cooperation between the screw and the threaded sleeve, the second connecting member 51 and the second guide member 54 connected to the second connecting member 51 can be lifted and lowered along the axial direction of the third support leg component 40, thereby realizing the locking and loosening of the second guide member 54 and the second locking member 53.

[0111] Please continue to refer to Figure 5 The clutch 70 comprises:

[0112] An active member 72, used to be connected to the driving member 60 so as to rotate under the driving of the driving member 60;

[0113] The driven member 73 is used to be connected to the first locking and releasing assembly 30 and the linkage member 80 respectively, so as to drive the first locking and releasing assembly 30 and the linkage member 80 to move respectively;

[0114] A clutch control assembly 74, the clutch control assembly 74 is movably disposed between the active component 72 and the driven component 73;

[0115] The clutch control assembly 74 is used to engage the active component 72 and the driven component 73 to allow the active component 72 to drive the driven component 73, the first locking and releasing assembly 30, and the linking component 80 to move under the drive of the driving component 60. At this time, the driving component 60 can drive the driven component 73 to move, and then drive the first locking and releasing assembly 30 and the second locking and releasing assembly 50 connected to the linking component 80 to achieve locking or unlocking; the clutch control assembly 74 is used to separate the active component 72 and the driven component 73 to prevent the active component 72 from driving the driven component 73 and the first locking and releasing assembly 30 and the linking component 80 to move under the drive of the driving component 60. At this time, the user can control the driven component 73 by himself to achieve locking or unlocking of the first locking and releasing assembly 30 and the second locking and releasing assembly 50 connected to the linking component 80, thereby increasing the flexibility of controlling the support leg assembly.

[0116] There are many ways to connect the active component 72 and the driven component 73, usually by snap-on connection, or other detachable connections, such as using magnetic materials to make the active component 72 or the driven component 73 so that the two are connected magnetically. The method of separating the active component 72 from the driven component 73 can be set as needed, such as making the clutch control component 74 directly lift the active component 72 so that the active component 72 is suspended in the air; the clutch control component 74 applies a reverse magnetic field to temporarily eliminate the magnetism of the active component 72 and the driven component 73, and the driven component 73 can be controlled by external force to rotate freely.

[0117] In this embodiment, a threaded sleeve is provided at one end of the driven component 73, and the first connecting member 31 corresponds to a screw rod. By utilizing the cooperation between the screw rod and the threaded sleeve, the first connecting member 31 and the first guide member 33 connected to the first connecting member 31 can be lifted and lowered along the axial direction of the second support leg component 20, thereby realizing the locking and loosening of the first guide member 33 and the first locking member 32.

[0118] Please continue to refer to Figure 1 The utility model also provides a photographic support frame 200, comprising a support seat 201 and at least three support leg assemblies 100 as above, wherein the support seat 201 is respectively connected to the first support leg members 10 in the at least three support leg assemblies 100;

[0119] Wherein, the driving member 60 comprises:

[0120] A driving member, the driving member is mounted on the support seat 201;

[0121] A transmission mechanism, the transmission mechanism connecting the driving member and the first locking and releasing assembly 30;

[0122] The driving member can drive the first locking and releasing assembly 30 and the linkage member 80 to move through the transmission mechanism.

[0123] In this embodiment, the support base 201 specifically includes a connecting base 202 and a mounting head 203 rotatably connected to the connecting base 202 , and the mounting head 203 is connected to the first supporting leg component 10 .

[0124] In some embodiments, the transmission mechanism includes a rack 621, a gear 622 and a transmission member 64. The rack 621 is connected to the driving member and slides in the horizontal direction under the drive of the driving member. The gear 622 is meshed with the rack 621. One end of the transmission member 64 is connected to the gear 622, and the other end of the transmission member 64 is connected to the first locking and releasing assembly 30. The driving member drives the rack 621 to slide in the horizontal direction and drives the transmission member 64, the first locking and releasing assembly 30 and the linkage member 80 to move.

[0125] Exemplarily, the driving member drives the rack 621 to move horizontally to the left, so that the gear 622 rotates counterclockwise, driving the linkage member 80 to rotate counterclockwise, and then the first guide member 33 rises along the axial direction of the second support leg member 20 and is locked with the first locking member 32, and the second guide member 54 rises along the axial direction of the third support leg member 40 and is locked with the second locking member 53, thereby achieving the locking of the support leg assembly 100.

[0126] In this embodiment, the movement of the driving member can be transmitted to the first locking and releasing assembly 30 and the second locking and releasing assembly 50 by setting a simple gear 622, a rack 621 and a linkage member 80. The user only needs to operate the driving member to complete the locking and unlocking of the supporting leg assembly 100, which is convenient for user operation.

[0127] As an implementation mode, the driving member includes:

[0128] A main oil cylinder 610, the main oil cylinder 610 is installed on the support seat 201;

[0129] The support cylinder 611 is connected to the main cylinder 610 and is installed on the support seat 201. The support cylinder 611 includes a first piston 613 for driving the first locking and releasing assembly 30 and the second locking and releasing assembly 50. The main cylinder 610 is used to control the locking and unlocking of the first locking and releasing assembly 30 and the second locking and releasing assembly 50.

[0130] Specifically, please refer to Figures 9 to 11 The support cylinder 611 further includes a mounting shell 612 and a first piston rod 614. The mounting shell 612 is configured with a sliding groove. The first piston 613 is slidably disposed in the sliding groove and divides the sliding groove into a first cavity 615 and a second cavity 616. The rack 621 is connected to the first piston rod 614, and the first piston 613 is connected to the first piston rod 614.

[0131] The master cylinder 610 includes a sealing shell 6102, a second piston 6170, and a second piston rod 617. The second piston 6170 is slidably disposed in the sealing shell 6102 and divides the interior of the sealing shell 6102 into a third cavity 618 and a fourth cavity 619. The third cavity 618 and the fourth cavity 619 are respectively used to contain fluids. The second piston rod 617 is connected to the second piston 6170.

[0132] The third cavity 618 is connected to the first cavity 615 so that the fluid can push the first piston 613 to move to the left; the fourth cavity 619 is connected to the second cavity 616 so that the fluid can push the first piston 613 to move to the right.

[0133] The principle is the same as that of a hydraulic press. In a closed fluid, the pressure applied to the fluid will be evenly transmitted to every part of the fluid and will be transmitted in all directions of the fluid. Therefore, when in use, the second piston 6170 is pulled upward, and the fluid in the third cavity 618 flows to the first cavity 615 and applies pressure to the first piston 613, causing the first piston 613 to move along the sliding groove in the direction of squeezing the second cavity 616, driving the first piston rod 614 and the rack 621 connected to the first piston rod 614 to move simultaneously, thereby achieving the effect of driving the transmission member 64 to rotate counterclockwise; if the second piston 6170 is pushed downward, the fluid in the fourth cavity 619 flows to the second cavity 616 and applies pressure to the first piston 613, causing the first piston 613 to move along the sliding groove in the direction of squeezing the first cavity 615, driving the first piston rod 614 and the rack 621 connected to the first piston rod 614 to move to the right simultaneously, thereby achieving the effect of driving the transmission member 64 to rotate clockwise.

[0134] As another implementation, please refer to Fig.12 The driving part includes a motor, which is installed on the support seat 201. The output end of the motor is connected to the screw rod 6101, and the rack 621 is threadedly connected to the screw rod 6101. The motor is used to control the rotation of the screw rod 6101, thereby controlling the rack 621 to slide in the horizontal direction.

[0135] When in use, the motor drives the screw rod 6101 to rotate, and the spiral movement between the screw rod 6101 and the rack 621 realizes the horizontal movement of the rack 621, thereby driving the gear 622 to rotate, and the gear 622 drives the transmission member 64 connected to it to rotate, and finally completes the control of the first locking and releasing component 30 and the second locking and releasing component 50.

[0136] The above embodiments of the utility model are merely examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the utility model are still within the scope of protection of the utility model.

Claims

1. A support foot assembly, used in a photographic support frame, characterized in that: The support foot assembly comprises: first leg member; a second supporting foot member, wherein the second supporting foot member is movably connected to the first supporting foot member and is movable relative to the first supporting foot member along an axial direction of the first supporting foot member; A first locking and releasing assembly, the first locking and releasing assembly being connected between the first supporting leg member and the second supporting leg member, and being used for locking or releasing the first supporting leg member and the second supporting leg member; a third supporting foot member, wherein the third supporting foot member is movably connected to the second supporting foot member and is movable relative to the second supporting foot member along an axial direction of the second supporting foot member; a second locking and releasing assembly, the second locking and releasing assembly being connected between the second supporting leg member and the third supporting leg member, and being used for locking or releasing the second supporting leg member and the third supporting leg member; a driving member connected to the first locking and releasing assembly to drive the first locking and releasing assembly to lock or release the first supporting leg member and the second supporting leg member; A linkage component is separately arranged from the driving component, and the linkage component connects the driving component and the second locking and releasing component, so as to drive the second locking and releasing component to lock or release the second supporting leg component and the third supporting leg component when the driving component drives the first locking and releasing component to move.

2. The support leg assembly according to claim 1, characterized in that: The support foot assembly also includes: A clutch is connected between the driving member and the first locking assembly to engage the driving member and the first locking assembly and to separate the driving member and the first locking assembly.

3. The support leg assembly according to claim 2, characterized in that: The first locking and releasing component comprises: a first connecting member connected to the clutch to drive the first connecting member to move axially relative to the clutch under the driving action of the driving member; A first locking member, wherein the first locking member is connected to the first supporting leg member; A first guide member, wherein the first guide member is connected to the first connecting member, the first guide member can be slidably mounted outside the second supporting leg member, and the first guide member can move relative to the first locking member along the axial direction of the second supporting leg member under the driving action of the driving member to lock or release the first supporting leg member and the second supporting leg member.

4. The support leg assembly according to claim 3, characterized in that: The second locking and releasing component comprises: a second connecting member, the second connecting member being connected to the clutch through the linkage member; a third connecting member, the third connecting member cooperates with the second connecting member, so that when the driving member drives the first locking and releasing assembly to move, the second connecting member is driven by the clutch to rotate to drive the third connecting member to move axially relative to the second connecting member; a second locking member, wherein the second locking member is connected to the second leg member; A second guide member, the second guide member is connected to the third connecting member, the second guide member can be slidably mounted outside the third supporting leg component, and the second guide member can move relative to the second locking member along the axial direction of the third supporting leg component under the driving action of the clutch to lock or release the second supporting leg component and the third supporting leg component.

5. The support leg assembly according to claim 4, characterized in that: A connecting passage penetrating to the external space is axially opened on the inner wall of the first connecting member, the aperture of the connecting passage is larger than the diameter of the linkage member, one end of the linkage member is connected to the clutch, and the other end of the linkage member passes through the connecting passage and is connected to the second connecting member.

6. The support leg assembly according to claim 5, characterized in that: The linkage member is a non-circular long strip structure, the clutch is provided with a first non-circular hole, the second connecting member is provided with a second non-circular hole, the second non-circular hole is arranged opposite to the first non-circular hole, the linkage member is respectively penetrated by the first non-circular hole and the second non-circular hole, and the linkage member is respectively connected to the first non-circular hole and the second non-circular hole.

7. The support leg assembly according to claim 3, characterized in that: The inner wall of the first locking member is provided with a first pressing opening which penetrates to the external space, the outer wall of the first locking member is provided with a first locking slope, one end of the first locking member is sleeved on the outside of the first supporting leg member, and one end of the first locking member is for the second supporting leg member to slide into; The inner wall of the first guide member is provided with a first locking opening which passes through the external space, and the outer wall of the first guide member is provided with a second locking slope. The first guide member is slidably mounted on the outside of the second support leg member through the first locking opening. The first guide member can move relative to the first locking member along the axial direction of the second support leg member and enter the first pressing opening, so that the second locking slope cooperates with the first locking slope to lock the first support leg member and the second support leg member.

8. The support leg assembly according to claim 4, characterized in that: The inner wall of the second locking member is provided with a second pressing opening which penetrates to the external space, the outer wall of the second locking member is provided with a third locking slope, one end of the second locking member is sleeved on the outside of the second supporting leg member, and one end of the second locking member is for the third supporting leg member to slide into; The inner wall of the second guide member is provided with a second locking opening which passes through the external space, and the outer wall of the second guide member is provided with a fourth locking slope. The second guide member is slidably mounted outside the third support leg member through the second locking opening. The second guide member can move relative to the second locking member along the axial direction of the third support leg member and enter the second pressing opening, so that the third locking slope cooperates with the fourth locking slope to lock the second support leg member and the third support leg member.

9. The support leg assembly according to claim 4, characterized in that: The first guide member is a tapered sleeve, and the outer wall of the tapered sleeve is provided with at least one first slot opened in the axial direction; and / or, The second guide member is a tapered sleeve, and the outer wall of the tapered sleeve is provided with at least one second slot opened in the axial direction; and / or, The second connecting member is a threaded sleeve, and the third connecting member is a screw.

10. The support leg assembly according to any one of claims 1 to 9, characterized in that: The second supporting leg member can be movably inserted into the first supporting leg member, and the third supporting leg member can be movably inserted into the second supporting leg member; and / or, There are at least two first supporting legs, and the at least two first supporting legs are arranged in parallel and spaced apart from each other. There are at least two second supporting legs, and the at least two second supporting legs are arranged in parallel and spaced apart from each other. At least two third supporting legs are provided, and the at least two third supporting legs are arranged in parallel and spaced apart from each other.

11. The support leg assembly according to any one of claims 2 to 9, characterized in that: The clutch comprises: An active member, used to be connected to the driving member so as to rotate under the driving of the driving member; A driven component, used to be connected to the first locking and releasing component and the linking component respectively, so as to drive the first locking and releasing component and the linking component to move respectively; A clutch control component, wherein the clutch control component is movably disposed between the active component and the driven component; The clutch control assembly is used to engage the active component and the driven component to allow the active component to drive the driven component, the first lock and release assembly, and the linkage component to move under the drive of the driving component; and the clutch control assembly is used to separate the active component and the driven component to prevent the active component from driving the driven component, the first lock and release assembly, and the linkage component to move under the drive of the driving component.

12. A photography support frame, characterized in that: It comprises a support base and at least three support foot assemblies according to any one of claims 1 to 11, wherein the support base is respectively connected to the first support foot members of the at least three support foot assemblies; Wherein, the driving component comprises: A driving member, the driving member is mounted on the supporting seat; A transmission mechanism connecting the driving member and the first locking and releasing assembly; The driving member can drive the first locking and releasing assembly and the linkage member to move through the transmission mechanism.

13. The photography support frame according to claim 12, characterized in that: The transmission mechanism includes a rack, a gear and a transmission member. The rack is connected to the driving member and slides in the horizontal direction under the drive of the driving member. The gear is meshed with the rack. One end of the transmission member is connected to the gear, and the other end of the transmission member is connected to the first locking and releasing assembly. The driving member drives the rack to slide in the horizontal direction and drives the transmission member, the first locking and releasing assembly and the linkage member to move.

14. The photography support frame according to claim 13, characterized in that: The driving member comprises: A master oil cylinder, the master oil cylinder is mounted on the support seat; A branch cylinder is connected to the main cylinder, and the branch cylinder is installed on the support seat. The branch cylinder includes a first piston for driving the first locking and releasing assembly and the second locking and releasing assembly. The main cylinder is used to control the locking and unlocking of the first locking and releasing assembly and the second locking and releasing assembly.

15. The photography support frame according to claim 14, characterized in that: The support cylinder further comprises a mounting shell and a first piston rod, the mounting shell is configured with a sliding groove, the first piston is slidably disposed in the sliding groove and the sliding groove is divided into a first cavity and a second cavity, the first piston rod is connected to the first piston, and the rack is connected to the first piston rod; The master cylinder comprises a sealing shell, a second piston, and a second piston rod. The second piston is slidably disposed in the sealing shell and divides the interior of the sealing shell into a third cavity and a fourth cavity. The third cavity and the fourth cavity are respectively used to contain fluids. The second piston rod is connected to the second piston. The third cavity is connected to the first cavity so that the fluid can push the first piston to move to the left end; the fourth cavity is connected to the second cavity so that the fluid can push the first piston to move to the right end.

16. The photography support frame according to claim 13, characterized in that: The driving member includes a motor, which is installed on the support seat. The output end of the motor is connected to a screw rod, and the rack is threadedly connected to the screw rod. The motor is used to control the rotation of the screw rod, thereby controlling the rack to slide in the horizontal direction.

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