Rotation lock mechanism for vertical camera head

Abstract

To provide a rotation lock structure for a vertical photography pan head, which has a simple structure and a compact fitting. [Solution] The device comprises a pan head base, a pan head flip cover, a screw 3, and a movable teeth part 4, the pan head flip cover has a through-hole 21, the screw passes through the through-hole, and the pan head base is connected to the screw so that the pan head flip cover and the pan head base can rotate relatively, the pan head base has a fixed teeth part 5, and both the end of the fixed teeth part and the end of the movable teeth part have concave and convex steps 51, both the through-hole and the movable teeth part have teeth, the movable teeth part is arranged in the through-hole so that the teeth of both mesh with each other to restrict the rotation of the movable teeth part relative to the through-hole, the screw is screwed into the movable teeth part, and the rotating screw drives the movable teeth part to move along the through-hole, movably engaging the concave and convex steps of both the fixed teeth part and the movable teeth part, and controlling the locked or unlocked state of the pan head base and the pan head flip cover.

Description

[Technical Field]

[0001] This invention mainly relates to a rotation locking mechanism for a vertical camera head. [Background technology]

[0002] Currently, commercially available rotation locking structures for vertical photography pan heads generally suffer from insufficient locking force, low adjustment precision, and poor operational convenience. Conventional pan heads often use a single screw lock or simple friction locking method, which is prone to loosening over long-term use and reduces the stability of the photography equipment. Furthermore, some pan heads require the use of additional tools for lock adjustment, making it difficult to meet the needs of high-speed photography. Therefore, a rotation locking solution for vertical photography pan heads with a rational structure, easy operation, and stable locking is proposed. Summary of the Invention [Problem to be solved by the invention]

[0003] In order to solve at least one of the above problems, this invention proposes a new structural solution. The rotation locking mechanism for the vertical camera head adopts the following technical solution: [Means for solving the problem]

[0004] A rotation locking structure for a vertical photography pan head, comprising a pan head base, a pan head flip cover, a screw, and a movable tooth part, the pan head flip cover is provided with a through-hole, the screw passes through the through-hole, and the pan head base is connected to the screw so that the pan head flip cover and the pan head base can rotate relatively, the pan head base is provided with a fixed tooth part, and both ends of the fixed tooth part and the movable tooth part are provided with uneven steps, Both the through-chamber and the movable toothed portion are provided with teeth, and the movable toothed portion is arranged within the through-chamber so that the teeth of both mesh with each other to restrict the rotation of the movable toothed portion relative to the through-chamber, and a screw is threadedly connected to the movable toothed portion, and the rotating screw drives the movable toothed portion to move along the through-chamber, movably engaging the concave and convex steps of both the fixed toothed portion and the movable toothed portion, and controlling the locked or unlocked state of the pan head base and the pan head flip cover.

[0005] Preferably, the pan head base has a sleeve member, an insertion chamber is provided within the sleeve member, a first locking groove is provided in the insertion chamber, a first protrusion is provided on the outer end surface of the fixed tooth portion, and the first protrusion is connected to the first locking groove so that the sleeve member rotates together with the fixed tooth portion.

[0006] Preferably, the through-chamber includes a first through-chamber segment, a separation space and a second through-chamber segment, the separation space being located between the first through-chamber segment and the second through-chamber segment, and the sleeve member of the pan head base being inserted into the separation space.

[0007] Preferably, a fitting member is arranged within the second through-chamber segment, a second protrusion is provided on the outer end surface of the fitting member, and a second locking groove is provided within the second through-chamber segment, and the connection between the second protrusion and the second locking groove restricts the fitting member from rotating within the second through-chamber segment.

[0008] Preferably, the fitting member has a cavity, and the teeth of the through-chamber are provided within the cavity.

[0009] Preferably, a knob is connected to the end of the screw, and the knob is exposed outside the flip cover of the pan head.

[0010] Preferably, the pan head flip cover is provided with a positioning hole, the positioning hole is connected to the first through-chamber segment, a set screw is screwed into the positioning hole, the screw is provided with an annular groove locking position, and the set screw is inserted into the annular groove locking position so as to limit the position of the screw within the through-chamber.

[0011] Preferably, the teeth of both the cavity and the movable teething portion are arranged longitudinally. [Effects of the Invention]

[0012] The advantageous effects of the present invention compared with the prior art are as follows:

[0013] This invention provides a rotation locking mechanism for a vertical camera head. This rotation locking mechanism for a vertical camera head uses a knob to directly drive a screw, moving the movable tooth up and down along a fixed guide member, and utilizing the concave and convex steps of the movable tooth and the fixed tooth to quickly engage or disengage, allowing for locking or unlocking with just a single rotation. This intuitive and efficient operation significantly improves the convenience and speed of switching the camera head between vertical and horizontal shooting modes. It has advantages such as a simple structure, compact engagement, and rational design, making it a product with excellent performance both technically and economically. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a schematic diagram of a rotation locking mechanism for a vertical camera head according to a preferred embodiment of the present invention; [Figure 2] 1 is a schematic diagram of a preferred embodiment of the present invention, showing the rotation locking mechanism for a vertical camera head in an inverted state; [Figure 3] 1 is a schematic diagram of a preferred embodiment of a vertical camera head rotation locking mechanism in a first disassembled state according to the present invention; [Figure 4] 1 is a schematic diagram of a preferred embodiment of the present invention, showing a second disassembled state of a rotation locking mechanism for a vertical camera head; [Figure 5] 1 is a schematic diagram of a preferred embodiment of the present invention, showing a third disassembled state of a rotation locking mechanism for a vertical camera head; DETAILED DESCRIPTION OF THE INVENTION

[0015] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings, in which the same or similar reference numerals throughout the drawings represent the same or similar elements or elements having the same or similar functions.

[0016] In the present invention, unless otherwise clearly specified or limited, the terms "assembled," "coupled," and "connected" shall be interpreted broadly. For example, they may be fixedly connected, detachably connected, or integrally connected. They may be mechanically connected, directly connected, or connected via an intermediate medium. Two elements may be internally connected. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0017] The following detailed description of specific embodiments of the present invention will be given with reference to the drawings in the specification to make the technical solution and its beneficial effects of the present invention clearer and more obvious. Note that the following description of the embodiments with reference to the drawings is intended to explain the present invention, and should not be construed as limiting the present invention.

[0018] 1 to 5, in a preferred embodiment of the present invention, the rotation locking structure for a vertical photography pan head includes a pan head base 1, a pan head flip cover 2, a screw 3, and a movable tooth part 4, the pan head flip cover 2 is provided with a through-hole 21, the screw 3 passes through the through-hole 21, and the pan head base 1 is connected to the screw 3 so that the pan head flip cover 2 and the pan head base 1 can rotate relatively around the screw 3 as an axis. The pan head base 1 is provided with a fixed tooth part 5, and both the end of the fixed tooth part 5 and the end of the movable tooth part 4 are provided with a concave-convex step 51. A knob 31 is connected to the end of the screw 3, and the knob 31 is exposed to the outside of the pan head flip cover 2. A corner position 32 is provided within the knob 31, and a corner portion 33 is provided on the screw 3. In this embodiment, the corner position and the corner portion are hexagonal, and the shapes and dimensions of both the corner portion 33 and the corner position 32 correspond to each other so as to fit compactly together, making it convenient to twist the screw 3 with the knob 31.

[0019] Both the through-chamber 21 and the movable toothed portion 4 are provided with teeth 41, the teeth 41 of the movable toothed portion 4 are provided on their outer end surfaces, and the movable toothed portion 4 is disposed within the through-chamber 21 so that the teeth 41 of both mesh with each other to restrict the rotation of the movable toothed portion 4 relative to the through-chamber 21. The screw 3 is threadedly connected to the movable toothed portion 4, and a thread 34 is provided at the end of the screw 3, and a threaded hole 42 is provided in the center of the movable toothed portion 4. The rotating screw 3 drives the movable toothed portion 4 to move along the through-chamber 21, and movably engages the concave and convex steps 51 of both the fixed toothed portion 5 and the movable toothed portion 4, thereby controlling the locked or unlocked state of the pan head base 1 and the pan head flip cover 2.

[0020] The camera head base 1 has a sleeve member 6, and an insertion chamber 61 is provided within the sleeve member 6. A first locking groove 62 is provided within the insertion chamber 61, and a first ridge 52 is provided on the outer end surface of the fixed teeth 5, the fixed teeth 5 is inserted into the insertion chamber 61, and the first ridge 52 is connected to the first locking groove 62 so that the sleeve member 6 rotates together with the fixed teeth 5, and both the fixed teeth 5 and the sleeve member 6 are provided with corresponding hole positions for connecting the screws 3 so that they pass through.

[0021] The through-chamber 21 includes a first through-chamber segment 22, a separation space 23 and a second through-chamber segment 24, the screw 3 simultaneously passes through the first through-chamber segment 22, the separation space 23 and the second through-chamber segment 24, the end of the screw 3 is inserted into the second through-chamber segment 24, the separation space 23 is located between the first through-chamber segment 22 and the second through-chamber segment 24, and the sleeve member 6 of the pan head base 1 is inserted into the separation space 23.

[0022] A fitting member 7 is disposed within the second through-chamber segment 24, and a second ridge 71 is provided on the outer end surface of the fitting member 7, and a second locking groove 25 is provided within the second through-chamber segment 24, and the connection between the second ridge 71 and the second locking groove 25 restricts the fitting member 7 from rotating within the second through-chamber segment 24, and the fitting member 7 can only move up and down along the second through-chamber segment 24. The fitting member 7 has a cavity 72 that passes through the fitting member 7, and the teeth 41 of the through-chamber 21 are provided within the cavity 72.

[0023] The pan head flip cover 2 is provided with a positioning hole 26, which communicates with the first through-chamber segment 22, and a positioning screw 27 is screwed into the positioning hole 26. The screw 3 is provided with an annular groove locking position 35, and the positioning screw 27 is inserted into the annular groove locking position 35 to limit the position of the screw 3 within the through-chamber 21 and prevent the screw 3 from falling out. The depth of the annular groove locking position 35 is the movable adjustment range of the screw 3, and the screw 3 can only rotate in the through-chamber 21, but cannot move up and down along the through-chamber 21.

[0024] The operating principle is as follows: The second ridge 71 is connected to the second locking groove 25, allowing the engaging member 7 to move only up and down along the second through-chamber segment 24. The teeth 41 of both the engaging member 7 and the movable toothed portion 4 are interlocked and designed vertically. The engaging member 7 and the movable toothed portion 4 cannot rotate relative to each other, allowing the movable toothed portion 4 to move up and down along the cavity 72 of the engaging member 7. The first ridge 52 is connected to the first locking groove 62, allowing the fixed toothed portion 5 and the sleeve member 6 to rotate relative to each other. The screw 3 and the movable toothed portion 4 are threadedly connected. By rotating the screw 3, the movable toothed portion 4 is restricted and cannot rotate, allowing it to move up and down along the engaging member 7. Both the movable toothed portion 4 and the fixed toothed portion 5 have concave and convex steps 51, which drive the movable toothed portion 4 to move upward by rotating the screw 3. When the two concave-convex steps 51 are engaged, the pan head base 1 and the pan head flip cover 2 are in a locked state and cannot be reversed relative to each other. Rotating the screw 3 drives the movable tooth part 4 to move downward. When the two concave-convex steps 51 are separated, the pan head base 1 and the pan head flip cover 2 are in an unlocked state and can be reversed relative to each other.

[0025] The direction of the threads 34 of both the screw 3 and the movable tooth portion 4 can vary according to actual needs. In this embodiment, the unlocked state and the locked state are achieved by rotating the screw 3 clockwise and counterclockwise, respectively, and the angle of the concave-convex step 51 is set to 90 degrees so that the pan head flip cover 2 and the pan head base 1 can rotate 90 degrees relative to each other.

[0026] In the description herein, references to terms such as "one embodiment," "preferably," "example," "embodiment," or "some examples" mean the specific features, structures, materials, or characteristics described in conjunction with this embodiment or example and included in at least one embodiment or example of the present invention; general references to such terms in the description herein do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples, as appropriate.

[0027] With the above structure and principle description, those skilled in the art should understand that the present invention is not limited to the above specific embodiments, and the improvements and substitutions based on the present invention and adopting techniques known to those skilled in the art should fall within the protection scope of the present invention and should be defined by the respective claims.

Claims

1. A rotation lock structure for a vertical camera head, The pan head base includes a pan head flip cover, a screw, and a movable tooth part, the pan head flip cover is provided with a through-hole, the screw passes through the through-hole, and the pan head base is connected to the screw so that the pan head flip cover and the pan head base can rotate relatively, the pan head base is provided with a fixed tooth part, and both ends of the fixed tooth part and the movable tooth part are provided with uneven steps; A rotation lock structure for a vertical photography pan head, characterized in that both the through chamber and the movable tooth portion are provided with teeth, the movable tooth portion is arranged within the through chamber so that the teeth of both mesh together to restrict rotation of the movable tooth portion relative to the through chamber, a screw is threadedly connected to the movable tooth portion, and the rotating screw drives the movable tooth portion to move along the through chamber, movably engaging the concave and convex steps of both the fixed tooth portion and the movable tooth portion, and controlling the locked or unlocked state of the pan head base and the pan head flip cover.

2. 2. The rotation lock structure for a vertical photography pan head according to claim 1, wherein the pan head base has a sleeve member, an insertion chamber is provided within the sleeve member, a first locking groove is provided in the insertion chamber, a first protrusion is provided on the outer end surface of the fixed tooth portion, and the first protrusion is connected to the first locking groove so that the sleeve member rotates together with the fixed tooth portion.

3. 2. The rotation lock structure for a vertical photography pan head according to claim 1, wherein the through-chamber includes a first through-chamber segment, a separation space and a second through-chamber segment, the separation space is located between the first through-chamber segment and the second through-chamber segment, and the sleeve member of the pan head base is inserted into the separation space.

4. A rotation lock structure for a vertical photography pan head as described in claim 3, characterized in that an engaging member is arranged within the second through-chamber segment, a second protrusion is provided on the outer end surface of the engaging member, a second locking groove is provided within the second through-chamber segment, and the connection between the second protrusion and the second locking groove restricts the engaging member from rotating within the second through-chamber segment.

5. 5. The rotation lock structure for a vertical camera head according to claim 4, wherein the fitting member has a cavity, and the teeth of the through-chamber are provided in the cavity.

6. 2. The rotation locking structure for vertical camera head according to claim 1, wherein a knob is connected to an end of the screw, and the knob is exposed outside the flip cover of the camera head.

7. The rotation lock structure for vertical photography pan head according to claim 3, characterized in that the pan head flip cover is provided with a positioning hole, the positioning hole is connected to the first through-chamber segment, a positioning screw is screwed into the positioning hole, the screw is provided with an annular groove locking position, and the positioning screw is inserted into the annular groove locking position so as to limit the position of the screw within the through-chamber.

8. 6. The rotation lock structure for a vertical camera head according to claim 5, wherein the teeth of both the cavity and the movable teeth portion are arranged in a vertical direction.

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