Locking mechanism for connecting tripod and holder

Abstract

The utility model provides a locking mechanism for connecting a tripod and a cradle head, which comprises a fixed seat on the tripod, a locking block and a driving mechanism, and further comprises a rotating shaft positioned in the fixed seat, the driving mechanism is stressed to move along the fixed seat, so that the locking block reciprocates along the rotating shaft along an arc-shaped track, and the tripod is locked by the locking block. And when the locking block reciprocates along the arc-shaped track, the locking block is always in dead top contact with the holder. According to the utility model, through the rotating shaft, the locking block does reciprocating motion under the action of the rotating shaft and the arc-shaped track instead of being directly ejected upwards, so that the direct impact force on the holder is saved, and the holder is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of tripod and pan head locking, in particular to a locking mechanism used for connecting a tripod with a pan head. Background Art

[0002] The existing quick-release device for photography has the following problems: when the head is connected to the tripod, if it is tightly fixed by a 1 / 4 screw, the anti-loosening effect cannot be achieved. If a straight or inclined screw is used to achieve the anti-loosening effect, it is easy to damage the bottom of the head. In the prior art, the locking of the tripod and the head is mainly achieved by directly applying external force to drive the locking block to lift upward, and then achieve locking. This process just causes the bottom of the head to be damaged, affecting its use. Utility Model Content

[0003] The utility model aims to provide an assembly structure for bags. During use, a fixed part and a movable part are used to make the sub-bag and the main bag move relative to each other. Then the movable part passes through the assembly part and rotates to be located on the assembly part so that the whole is projected on the assembly part, thereby completing assembly or disassembly. The method is simple.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0005] A locking mechanism for connecting a tripod and a pan head comprises a fixed seat, a locking block and a driving mechanism on the tripod, and also comprises a rotating shaft located in the fixed seat. The driving mechanism is forced to move along the fixed seat, so that the locking block reciprocates along the rotating shaft in an arc trajectory. When the locking block reciprocates along the arc trajectory, the locking block is always in dead contact with the top of the pan head.

[0006] Furthermore, the locking block forms a first curved surface from the edge toward the center of the fixing seat, and the first curved surface forms an abutting portion that abuts against the pan / tilt head.

[0007] Furthermore, when the locking block moves along the arc track, the abutment portion moves between a position close to the center of the fixing seat and a middle position of the first curved surface.

[0008] Furthermore, the first curved surface is an arc surface structure with a high middle and two ends facing downward.

[0009] Furthermore, a guide surface is formed on the lower surface of the locking block, and the driving mechanism moves between two end points of the guide surface during movement.

[0010] Furthermore, the guide surface is an arcuate surface, and during the reciprocating motion, the arcuate surface is always tangent to the driving mechanism.

[0011] Furthermore, the guide surface extends from the edge of the fixing seat toward the middle to form a first arc surface that is concave downward and inward.

[0012] Furthermore, the guide surface forms a second arc surface near the driving mechanism, and a connecting arc surface protruding downward is formed between the second arc surface and the first arc surface.

[0013] Furthermore, the fixing seat is a cylindrical structure, the cylindrical structure is provided with a movement cavity for driving the mechanism to move toward the center of the circle, and the cylindrical structure is provided with an assembly cavity in a vertical direction thereof which is in communication with the movement cavity.

[0014] Furthermore, a through hole for the rotation shaft to pass through is provided on the locking block located in the assembly cavity, and the rotation shaft is assembled with the assembly holes on both sides of the assembly cavity after passing through the through hole.

[0015] The beneficial effects of the utility model are as follows:

[0016] Firstly, the utility model utilizes a rotating shaft, so that the locking block moves back and forth in an arc along the rotation of the rotating shaft. The movement under this path makes the locking block always pressed against the gimbal, but there is no direct impact force, so the wear on the gimbal is small.

[0017] Secondly, the utility model utilizes the arc surface on the locking block, so that during rotation, the arc surface always has at least one point that is fixed to the gimbal but there will not be a strong direct force, thereby achieving locking or unlocking while providing good protection for the bottom of the gimbal.

[0018] Finally, the utility model cleverly uses a tangential fitting method to provide a fitting surface, but with a small impact, thereby being able to drive the movement to lock or unlock without damaging it, which is based on many advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 An assembly diagram of a locking mechanism for connecting a tripod and a pan head provided by the utility model;

[0020] Figure 2 A schematic diagram of the structure of a locking mechanism for connecting a tripod and a pan head provided by the utility model;

[0021] Figure 3 A cross-sectional view of a locking mechanism for connecting a tripod and a pan head provided by the utility model;

[0022] Figure 4 A diagram showing the use status of the locking mechanism for connecting a tripod and a pan head provided by the utility model when the pan head is assembled;

[0023] Figure 5 The utility model provides Figure 4 A cross-sectional view of

[0024] In the figure:

[0025] 100, tripod; 110, fixing seat; 120, locking block; 121, first curved surface; 122, abutting portion; 123, guiding surface; 124, first curved surface; 125, second curved surface; 126, connecting curved surface; 127, through hole; 130, driving mechanism; 140, rotating shaft; 150, moving cavity; 160, assembly cavity; 161, assembly hole; 200, pan head; 300, screw. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0027] See attached Figure 1-5 As shown, the locking mechanism for connecting the tripod and the gimbal in this embodiment includes a fixing seat 110, a locking block 120 and a driving mechanism 130 on the tripod 100, and also includes a rotating shaft 140 located in the fixing seat 110. The driving mechanism 130 is forced to move along the fixing seat 110, so that the locking block 120 forms a reciprocating motion along the rotating shaft 140 in an arc track. When the locking block 120 reciprocates along the arc track, the locking block 120 always contacts the gimbal 200. In this embodiment, compared with the direct pushing movement mode and force application mode, the rotating shaft can drive a certain arc movement, so that the applied force has a small impact, and the wear and consumption of the gimbal is less, thereby protecting the gimbal well.

[0028] In this embodiment, the driving mechanism 130 is a driving pin in the prior art. The operator directly acts on the driving pin, which pushes the locking block 120 to move inward. At this time, due to the action of the rotating shaft 140, the locking block 120 forms an arc trajectory facing upward and inward, so that the locking block 120 completes the locking of the gimbal 200. Compared with direct locking, in this embodiment, the arc trajectory is inward and upward, and the locking block is tightened with the gimbal 200 as it moves inward and upward. At this time, the locking block 120 is always locked with the gimbal 200, but the locking position will be adjusted, and the contact will increase, thereby completing a good locking.

[0029] See attached Figure 1As described, the locking block 120 in this embodiment forms a first curved surface 121 from the edge toward the center of the fixing seat 110, and the first curved surface 121 forms an abutting portion 122 that abuts against the gimbal 200. In this embodiment, the curved surface forms an arc-shaped structure, and the arc has a smaller contact or force on the bottom of the gimbal 200 than a straight line structure, which not only has a good protective effect, but also has a small impact, and the arc surface has less wear on the gimbal, and has good protective power.

[0030] Furthermore, when the locking block 120 moves along the arc track, the contact portion 122 moves between a position close to the center of the fixing seat 110 and a position in the middle of the first curved surface 121. In this embodiment, the contact portion 122 changes as the rotation shaft 140 drives the locking block 120 to rotate to different positions. Initially, the contact portion is formed by contacting the fixing seat 110 at the center, and then continues to rotate, so that the contact portion 122 gradually changes to a position structure facing the edge of the fixing seat 110.

[0031] See attached Figure 1 It can be clearly seen that the first curved surface 121 located on the upper surface of the locking block 120 is an arc surface structure with a high middle and two ends facing downwards. By utilizing the height difference, the locking block 120 has a certain rotation space and adjustment space.

[0032] Furthermore, a guide surface 123 is formed on the lower surface of the locking block 120, and the driving mechanism 130 moves along the two end points of the guide surface 123. In this embodiment, during the driving of the driving mechanism 130, it is mainly carried out along the lower surface of the locking block 120, and is actually abutted and pushed by contact with the guide surface 123.

[0033] Different from the cubic structure of the prior art, in order to protect various structures as much as possible, the guide surface 123 in this embodiment is an arc surface, and during the reciprocating motion, the arc surface is always tangent to the driving mechanism 130. The tangential contact mode ensures that no matter how much force the driving mechanism 130 applies to the lower surface of the locking block 120, the wear and impact are relatively small, which can well protect the structure.

[0034] As shown in the accompanying drawings, the guide surface 123 extends from the edge of the fixing seat 110 toward the middle, forming a first arc surface 124 that is downward and inwardly concave. The concave structure formed at this time, on the one hand, guides the driving mechanism 130 to continue to move inward, thereby driving the rotation of the locking block, etc., and on the other hand, the concave arc surface has more contact surfaces and less wear.

[0035] In this embodiment, in order to minimize various wear and tear, or accidental injury to the operator, etc., the guide surface 123 forms a second arc surface 125 near the driving mechanism 130, and a downwardly protruding connecting arc surface 126 is formed between the second arc surface 125 and the first arc surface 124. In this embodiment, the outer surface of the entire locking block 120 is arc-shaped as long as it contacts the outside world. For example, the surface near the center position of the fixing seat 110 can also be set to an arc shape. In this way, the possibility of wear on the entire structure is small, which not only protects the pan / tilt head 200, but also protects the driving mechanism, etc.

[0036] In order to facilitate assembly, especially the subsequent assembly with the screw 300 for photographic equipment, in this embodiment, the fixing seat 110 is a cylindrical structure, and the cylindrical structure is provided with a moving cavity 150 for the movement of the driving mechanism 130 toward the center of the circle, and the cylindrical structure is provided with an assembly cavity 160 in a vertical direction that is in communication with the moving cavity 150. At this time, the entire driving mechanism 130 is assembled in the moving cavity 150 and moves accordingly, and the locking block 120 is assembled in the assembly cavity 160 and rotates accordingly.

[0037] Furthermore, a through hole 127 for the rotating shaft 140 to pass through is provided on the locking block 120 located in the assembly cavity 160 . After passing through the through hole 127 , the rotating shaft 140 is assembled with the assembly holes 161 on both sides of the assembly cavity 160 , thereby completing the assembly of the rotating shaft 140 .

[0038] In this embodiment, it is used for assembly in a photographic device, such as a photographic camera. At this time, the photographic camera is fixed to the pan head 200 by a screw 300. At this time, one quarter of the screw 300 is on the fixing seat 110, and the remaining three quarters are on the pan head 200. The pan head is directly connected to the photographic device, and the bottom of the pan head 200 is assembled through the fixing seat 110 on the tripod 100. Then in this embodiment, a locking block 120 and a driving mechanism 130 are provided on the fixing seat 110, and a rotating shaft 140 is assembled on the locking block 120. Both ends of the rotating shaft 140 are rotatably assembled in the assembly cavity 160 of the fixing seat 110, so that it can rotate.

[0039] The use and assembly process of this embodiment is as follows:

[0040] First, the end of the screw hole on the fixing base is fixed with the 1 / 4 screw 300, so that the gimbal 200 can be grafted through the 1 / 4 screw to complete the preliminary assembly;

[0041] Secondly, the lower end of the fixing base 110 is connected to the tripod;

[0042] Thirdly, in order to ensure a good connection between the pan / tilt head 200 and the fixing base, in this embodiment, a locking block 120 with a rotating shaft 140 is assembled in the fixing base 110, and can rotate in the fixing base through the rotating shaft; and the driving mechanism 130 composed of a driving pin is screw-matched with the fixing base 110, and screwing the driving pin can rotate the locking block 120;

[0043] If the pan head and the tripod are locked, the process is as follows: first, the bottom of the pan head is grafted to the fixing seat through a 1 / 4 threaded hole, but the current grafting cannot prevent loosening. In this embodiment, the locking block is rotated by rotating the driving pin, thereby squeezing the bottom of the pan head to achieve an anti-loosening effect. Compared with the prior art in which the locking block 120 is directly moved upward to lock it, the wear on the pan head 200 is small and the protection effect is good.

[0044] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A locking mechanism for connecting a tripod to a pan head, comprising a fixing seat on the tripod, a locking block and a driving mechanism, characterized in that: It also includes a rotating shaft located in the fixed seat. The driving mechanism is forced to move along the fixed seat, so that the locking block reciprocates along the rotating shaft in an arc trajectory. When the locking block reciprocates along the arc trajectory, the locking block is always in dead contact with the top of the pan / tilt head.

2. The locking mechanism for connecting a tripod and a pan head according to claim 1, characterized in that: The locking block forms a first curved surface from the edge toward the center of the fixing seat, and the first curved surface forms an abutting portion that abuts against the pan / tilt head.

3. The locking mechanism for connecting a tripod and a pan head according to claim 2, characterized in that: When the locking block moves along the arc track, the abutting portion moves between a position close to the center of the fixing seat and a middle position of the first curved surface.

4. The locking mechanism for connecting a tripod and a pan head according to claim 2, characterized in that: The first curved surface is a curved surface structure with a high middle and two ends facing downward.

5. The locking mechanism for connecting a tripod and a pan head according to claim 1, characterized in that: The lower surface of the locking block forms a guide surface, and the driving mechanism moves between two end points along the guide surface during movement.

6. The locking mechanism for connecting a tripod and a pan head according to claim 5, characterized in that: The guide surface is an arcuate surface, and during the reciprocating motion, the arcuate surface is always tangent to the driving mechanism.

7. The locking mechanism for connecting a tripod and a pan head according to claim 5, characterized in that: The guide surface extends from the edge of the fixing seat toward the middle to form a first arc surface that is downward and inwardly concave.

8. The locking mechanism for connecting a tripod and a pan head according to claim 7, characterized in that: The guide surface forms a second arc surface near the driving mechanism, and a connecting arc surface protruding downward is formed between the second arc surface and the first arc surface.

9. The locking mechanism for connecting a tripod and a pan head according to claim 1, characterized in that: The fixing seat is a cylindrical structure, and the cylindrical structure is provided with a movement cavity for driving the mechanism to move toward the center of the circle, and the cylindrical structure is provided with an assembly cavity in a vertical direction that communicates with the movement cavity.

10. The locking mechanism for connecting a tripod and a pan head according to claim 9, characterized in that: A through hole for the rotating shaft to pass through is provided on the locking block located in the assembly cavity. After the rotating shaft passes through the through hole, it is assembled with the assembly holes on both sides of the assembly cavity.

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