Locking mechanism and photographing holder applying same

Abstract

The utility model discloses a locking mechanism and a camera holder using the same. The locking mechanism comprises a seat body, a connecting ball head, a compressing structure and a ball group, the compressing structure is arranged in the seat body; the pressing structure comprises a driving part and a locking tray; when the driving part rotates, the locking tray can be driven to move, and the connecting ball head is tightly jacked through the locking tray; and the ball group is arranged between the driving piece and the locking tray. In the relative movement process of the driving piece and the locking tray, the driving piece and the locking tray apply force to each other through the ball set, and rolling friction is applied to the driving piece and the locking tray through the ball set. The rolling friction not only has the advantage of low noise, but also can effectively reduce the friction loss between the driving piece and the locking tray, so that better use experience and longer service life can be effectively provided for the photographic holder, and the practical value of the photographic holder can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of photographic equipment, in particular to a locking mechanism and a photographic tripod head applying the same. Background Art

[0002] As is well known, a photographic tripod head is usually used to support photographic equipment such as a camera and has an effect of fixing the equipment. In order to provide a stable fixing effect on the equipment at various angles, the existing photographic tripod heads usually have a strong clamping function. However, the strong clamping function will cause strong friction on the locking components during the unlocking movement, which not only easily generates unpleasant noises, but also may cause serious wear on the locking components after repeated use. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a locking mechanism, which can reduce the noises and wear caused by friction during the movement.

[0004] The utility model also provides a photographic tripod head with the above locking mechanism.

[0005] The locking mechanism according to the first aspect embodiment of the utility model includes: a seat body, a connecting ball head, a pressing structure and a ball group; the connecting ball head is rotatably installed in the seat body, a part of the connecting ball head extends out of the seat body and is connected with a connecting seat, and the connecting seat is used for connecting photographic equipment; the pressing structure is arranged in the seat body; the pressing structure includes a driving member and a locking tray, and the driving member can rotate relative to the seat body; when the driving member rotates, it can drive the locking tray to move and press against the connecting ball head through it; the ball group is installed between the driving member and the locking tray, and when the driving member rotates relative to the seat body, the driving member performs rolling friction with the locking tray through the ball group.

[0006] The locking mechanism according to the embodiment of the utility model has at least the following beneficial effects: after the user drives the driving member to rotate by the part of the driving member extending out of the seat body and drives the locking tray to move, the connecting ball head can be tightly fixed by the locking tray, so as to directly and effectively realize the relative fixing effect between the connecting ball head and the seat body, and further facilitate the fixing of the orientation angle of the photographic equipment.

[0007] During the relative movement of the driving member and the locking tray, the two will apply forces to each other through the ball group, and the ball group will apply rolling friction to the two. Rolling friction not only has the advantage of low noise, but also can effectively reduce the friction loss between the driving member and the locking tray. Therefore, it can effectively provide a better user experience and a longer service life for the photographic gimbal, thereby effectively enhancing the practical value of the photographic gimbal.

[0008] According to some embodiments of the present invention, the driving member is provided with an arc-shaped groove, and the ball group is rotatably installed in the arc-shaped groove; the locking tray is provided with a mounting portion, and a part of the mounting portion extends into the arc-shaped groove and sleeves the outer periphery of the ball group.

[0009] According to some embodiments of the present invention, the bottom wall of the arc-shaped groove is an inclined surface, and the bottom wall of the arc-shaped groove gradually rises towards the notch direction of the arc-shaped groove.

[0010] According to some embodiments of the present invention, a receiving groove is formed at the bottom of the mounting portion, the ball group is installed in the receiving groove, and the groove depths of all parts of the receiving groove are equal.

[0011] According to some embodiments of the present invention, positioning concave points are provided at the ends of the arc-shaped groove.

[0012] According to some embodiments of the present invention, the positioning concave points are provided at both ends of the arc-shaped groove. When and only when the ball group extends into one of the two positioning concave points, the ball group is located outside the other of the two positioning concave points.

[0013] According to some embodiments of the present invention, a supporting seat for supporting the connecting ball head is arranged in the seat body, the supporting seat is provided with a passage hole, and the mounting portion passes through the passage hole and extends into the arc-shaped groove.

[0014] According to some embodiments of the present invention, the supporting seat is fixedly connected to the seat body, and the mounting portion is clamped in the passage hole.

[0015] According to some embodiments of the present invention, the pressing structure includes a first clamping ring and a second clamping ring. The first clamping ring and the second clamping ring are respectively located on both sides of the connecting ball head and can cooperate to clamp the middle part of the connecting ball head; the locking tray can move close to the second clamping ring and push the second clamping ring to displace towards the first clamping ring.

[0016] The photographic gimbal according to the embodiment of the second aspect of the present invention includes the locking mechanism according to the above first aspect embodiment of the present invention.

[0017] The photographic gimbal according to the embodiment of the present invention has at least the following beneficial effects: After the user drives the driving member to rotate through the part of the driving member extending outside the seat body and drives the locking tray to move, the connecting ball head can be tightly fixed by the locking tray, so as to directly and effectively achieve the relative fixing effect between the connecting ball head and the seat body, and further facilitate the fixing of the orientation angle of the photographic device.

[0018] During the relative movement of the driving member and the locking tray, the two will exert force on each other through the ball group, and the ball group will apply rolling friction to the two. Rolling friction not only has the advantage of low noise, but also can effectively reduce the friction loss between the driving member and the locking tray. Therefore, it can effectively provide a better user experience and a longer service life for the photographic gimbal, and further effectively improve the practical value of the photographic gimbal.

[0019] The additional aspects and advantages of the present utility model will be partly given in the following description, partly become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic diagram of the locking mechanism according to the embodiment of the present utility model;

[0022] Figure 2 is Figure 1 a schematic sectional view of the shown locking mechanism;

[0023] Figure 3 is Figure 2 a schematic exploded view of the shown locking mechanism;

[0024] Figure 4 is Figure 1 a schematic bottom view of the locking tray of the shown locking mechanism;

[0025] Figure 5 is Figure 1 a schematic sectional view of the driving member of the shown locking mechanism;

[0026] Reference numerals: seat body 100; pressing structure 200; driving member 210; arc groove 215; positioning concave point 219; locking tray 230; mounting portion 233; receiving groove 235; ball group 250; supporting seat 290; aisle hole 295; connecting ball head 500; first clamping ring 710; second clamping ring 720; connecting seat 900; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0028] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the present utility model.

[0029] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is two or more, understandings such as "greater than", "less than", "exceeding", etc. do not include the recited number, and understandings such as "above", "below", "within", etc. include the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present utility model, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0031] Refer to Figure 1, a locking mechanism, comprising: a seat body 100, a connecting ball head 500, a pressing structure 200 and a ball group 250; the connecting ball head 500 is rotatably installed in the seat body 100, a part of the connecting ball head 500 extends out of the seat body 100 and is connected with a connecting seat 900, and the connecting seat 900 is used for connecting a photographic device; the pressing structure 200 is arranged in the seat body 100; the pressing structure 200 includes a driving member 210 and a locking tray 230, and the driving member 210 can rotate relative to the seat body 100; when the driving member 210 rotates, it can drive the locking tray 230 to move and press against the connecting ball head 500 through it; the ball group 250 is installed between the driving member 210 and the locking tray 230, and when the driving member 210 rotates relative to the seat body 100, the driving member 210 and the locking tray 230 perform rolling friction through the ball group 250. After the user drives the driving member 210 to rotate through the part of the driving member 210 extending out of the seat body 100 and drives the locking tray 230 to move, the connecting ball head 500 can be tightly fixed by the locking tray 230, so as to directly and effectively achieve the relative fixing effect between the connecting ball head 500 and the seat body 100, and further facilitate the fixing of the orientation angle of the photographic device. During the relative movement of the driving member 210 and the locking tray 230, the two will apply forces to each other through the ball group 250, and the ball group 250 will apply rolling friction to the two. Rolling friction not only has the advantage of low noise, but also can effectively reduce the friction loss between the driving member 210 and the locking tray 230. Therefore, it can effectively provide a better use experience and a longer service life for the photographic gimbal, and further effectively improve the practical value of the photographic gimbal.

[0032] Specifically, the ball group 250 includes a plurality of balls. During the relative rotation of the driving member 210 and the locking tray 230, each ball can roll between the two, so that the friction between the driving member 210 and the locking tray 230 is converted into rolling friction.

[0033] It can be expected that the volumes of the plurality of balls can be the same, or there can be differences and an axial pushing effect during rotation can be achieved through this difference. For example, the volumes of each ball increase, and an inclined plane is formed by the common tangent of each ball. The specific implementation manner is not unique, but can be adjusted according to the actual situation and is not limited here.

[0034] In some embodiments, referring to Figure 3, the driving member 210 is provided with an arc-shaped groove 215, and the ball set 250 is rotatably installed in the arc-shaped groove 215; the locking tray 230 is provided with a mounting portion 233, and a part of the mounting portion 233 extends into the arc-shaped groove 215 and sleeves the outer periphery of the ball set 250. The arc-shaped groove 215 can load the ball set 250 from the driving member 210, so that the ball set 250 can be stably placed on the driving member 210. The mounting portion 233 can then install the ball set 250 into the locking tray 230, so that the ball set 250 and the locking tray 230 are in contact with and positioned relative to each other. Moreover, since a part of the mounting portion 233 extends into the arc-shaped groove 215, the locking tray 230 and the driving member 210 can also achieve the effect of relative positioning through the cooperation between the mounting portion 233 and the arc-shaped groove 215, thereby ensuring that the movement of the driving member 210 can be smoothly transmitted to the locking tray 230.

[0035] In some embodiments, referring to Figure 5 , the bottom wall of the arc-shaped groove 215 is an inclined surface, and the bottom wall of the arc-shaped groove 215 gradually rises toward the notch direction of the arc-shaped groove 215. When the driving member 210 rotates, it will drive the arc-shaped groove 215 to rotate relative to the locking tray 230. During this process, the bottom wall of the arc-shaped groove 215 will generate a position change between the ball set 250 and the locking tray 230. Since the bottom wall of the arc-shaped groove 215 is an inclined surface, when its position changes with the locking tray 230, a height difference will be generated, so that the locking tray 230 can be directly and effectively pushed to move through this height difference.

[0036] In some embodiments, referring to Figure 4 , a receiving groove 235 is formed at the bottom of the mounting portion 233, and the ball set 250 is installed in the receiving groove 235, and the groove depths of all parts of the receiving groove 235 are equal. The receiving groove 235 can load the ball set 250. Since the groove depths of all parts of the receiving groove 235 are equal, it can effectively ensure that the axial position change between the mounting portion 233 and the arc-shaped groove 215 follows the rotation of the driving member 210 and the arc-shaped groove 215 synchronously, thereby improving the accuracy between the locking action and the unlocking action.

[0037] In some embodiments, referring to Figure 3 , a positioning concave point 219 is provided at the end of the arc-shaped groove 215. The positioning concave point 219 can catch the ball set 250 when the ball set 250 moves to the end of the arc-shaped groove 215, so that the ball set 250 is positioned and fixed, and thus a temporary state fixing effect can be provided for different locking states to facilitate the adjustment of the photographic equipment.

[0038] Specifically, the positioning concave point 219 matches the outer shape of one of the balls in the ball group 250, so that the overall positioning effect of the ball group 250 can be achieved by clamping a single ball.

[0039] In some embodiments, referring to Figure 3 , positioning concave points 219 are provided at both ends of the arc-shaped groove 215. When and only when the ball group 250 extends into one of the two positioning concave points 219, the ball group 250 is located outside the other of the two positioning concave points 219. The two positioning concave points 219 can respectively position the farthest movement positions on both sides of the ball group 250, so as to achieve a temporary state fixing effect at different positions. Since the ball group 250 can only be clamped with one of the two positioning concave points 219 at a time, the force required to take the ball group 250 away from the positioning concave point 219 can be effectively reduced, and thus the effort required to change the locked state can be reduced.

[0040] In some embodiments, referring to Figure 3 , a supporting seat 290 for supporting the connecting ball head 500 is provided in the seat body 100. The supporting seat 290 is provided with a passage hole 295, and the mounting portion 233 passes through the passage hole 295 and extends into the arc-shaped groove 215. The supporting seat 290 can not only support and hold the connecting ball head 500, but also relatively align the mounting portion 233 and the arc-shaped groove 215 through the passage hole 295, so as to ensure accurate and smooth connection between the two.

[0041] In some embodiments, referring to Figure 3 , the supporting seat 290 is fixedly connected in the seat body 100, and the mounting portion 233 is clamped in the passage hole 295. When the driving member 210 rotates, it will drive the ball group 250 to rotate, and apply a torque to the mounting portion 233 through the ball group 250. The supporting seat 290 can relatively fix the mounting portion 233 and the locking tray 230 through the passage hole 295, so as to prevent the locking tray 230 from being driven by the rotational movement of the driving member 210, thereby improving the overall stability.

[0042] In some embodiments, referring to Figure 2, the pressing structure 200 includes a first clamping ring 710 and a second clamping ring 720. The first clamping ring 710 and the second clamping ring 720 are respectively located on both sides of the connecting ball head 500 and can cooperate to clamp the middle part of the connecting ball head 500; the locking tray 230 can move close to the second clamping ring 720 and push the second clamping ring 720 to displace towards the first clamping ring 710. The radial dimension of the connecting ball head 500 will gradually expand towards its middle part. Therefore, when the first clamping ring 710 and the second clamping ring 720 move closer to each other under the push of the locking tray 230, the first clamping ring 710 and the second clamping ring 720 can cooperate to clamp the middle part of the connecting ball head 500, so as to directly and effectively achieve the effect of tightly pressing and fixing the connecting ball head 500, and further achieve the purpose of fixing the orientation angle of the photographic device.

[0043] In the second aspect of the present utility model, an embodiment of a photographic cloud platform is provided, including the above locking mechanism. After the user drives the driving member 210 to rotate through the part of the driving member 210 extending outside the seat body 100 and drives the locking tray 230 to move, the connecting ball head 500 can be tightly fixed by the locking tray 230, so as to directly and effectively achieve the relative fixing effect between the connecting ball head 500 and the seat body 100, and further facilitate the fixing of the orientation angle of the photographic device. During the relative movement of the driving member 210 and the locking tray 230, the two will apply forces to each other through the ball group 250, and the ball group 250 will apply rolling friction to the two. Rolling friction not only has the advantage of low noise, but also can effectively reduce the friction loss between the driving member 210 and the locking tray 230. Therefore, it can effectively provide a better use experience and a longer service life for the photographic cloud platform, and further effectively improve the practical value of the photographic cloud platform.

[0044] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered as the scope described in this specification.

[0045] The embodiments of the present utility model have been described in detail above with reference to the drawings, but the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present utility model.

Claims

1. A locking mechanism, characterized in that: include: base(100); A connecting ball head (500) is rotatably mounted in the seat body (100), a portion of the connecting ball head (500) extends out of the seat body (100) and is connected to a connecting seat (900), and the connecting seat (900) is used to connect a photographic device; A pressing structure (200) is arranged in the base body (100); the pressing structure (200) comprises a driving member (210) and a locking tray (230); the driving member (210) is capable of rotating relative to the base body (100); when the driving member (210) rotates, it can drive the locking tray (230) to move and tighten the connecting ball head (500) through the locking tray (230); A ball group (250) is installed between the driving member (210) and the locking tray (230). When the driving member (210) rotates relative to the base (100), the driving member (210) performs rolling friction with the locking tray (230) through the ball group (250).

2. The locking mechanism according to claim 1, characterized in that: The driving member (210) is provided with an arc groove (215), and the ball group (250) is rotatably installed in the arc groove (215); the locking tray (230) is provided with a mounting portion (233), and a portion of the mounting portion (233) extends into the arc groove (215) and is sleeved on the outer periphery of the ball group (250).

3. The locking mechanism according to claim 2, characterized in that: The bottom wall of the arc-shaped groove (215) is an inclined surface, and the bottom wall of the arc-shaped groove (215) gradually rises toward the groove opening of the arc-shaped groove (215).

4. The locking mechanism according to claim 3, characterized in that: The bottom of the mounting portion (233) is provided with a receiving groove (235), the ball group (250) is installed in the receiving groove (235), and the groove depth of each part of the receiving groove (235) is equal.

5. The locking mechanism according to claim 3, characterized in that: The end of the arc-shaped groove (215) is provided with a positioning concave point (219).

6. The locking mechanism according to claim 5, characterized in that: The two ends of the arc groove (215) are provided with the positioning concave points (219), and when and only when the ball group (250) extends into one of the two positioning concave points (219), the ball group (250) is located outside the other of the two positioning concave points (219).

7. The locking mechanism according to claim 2, characterized in that: A supporting seat (290) for supporting the connecting ball head (500) is arranged in the seat body (100), and the supporting seat (290) is provided with a passage hole (295), and the mounting portion (233) passes through the passage hole (295) and extends into the arc-shaped groove (215).

8. The locking mechanism according to claim 7, characterized in that: The supporting seat (290) is fixedly connected to the seat body (100), and the mounting portion (233) is snap-fitted into the passage hole (295).

9. The locking mechanism according to claim 1, wherein: The clamping structure (200) comprises a first clamping ring (710) and a second clamping ring (720), wherein the first clamping ring (710) and the second clamping ring (720) are respectively located on both sides of the connecting ball head (500) and can cooperate to clamp the middle part of the connecting ball head (500); the locking tray (230) can move close to the second clamping ring (720) and push the second clamping ring (720) to move toward the first clamping ring (710).

10. A photography platform, characterized in that: Comprising the locking mechanism according to any one of claims 1 to 9.

Images