Quick dismounting mechanism for center shaft of photography tripod

Abstract

The utility model provides a photography tripod center shaft quick release mechanism, which comprises a first shaft section and a second shaft section which can be mutually inserted, the first shaft section is provided with an insertion part, the insertion part is provided with a locking groove, the second shaft section is provided with a locking part matched with the insertion part, and the locking groove is provided with a locking groove. The locking part comprises a locking piece connected to the second shaft section in a pivoted mode and a locking block extruded by the locking piece to move, the locking piece extrudes the locking block to move close to the inserting part of the first shaft section in the locking state and is locked in a locking groove in the inserting part, and when the locking piece is in the releasing state, the locking block moves close to the inserting part of the first shaft section and is locked in the locking groove in the inserting part. And the locking block can retreat from the locking groove, so that the first shaft section can be quickly taken down from the second shaft section.

Description

Technical Field

[0001] The utility model relates to the field of tripods, in particular to a central axis quick-release mechanism of a photographic tripod. Background Art

[0002] A photographic scaffold, also known as a tripod, is a support frame used to stabilize the camera. It plays an important role in photography and videography, and can help photographers achieve the desired photographic effects.

[0003] In order to meet different shooting needs and changes in perspective, it is usually necessary to adjust the height of the photography tripod. Photographers can adjust the height of the tripod according to the shooting subject and composition requirements, and then adjust the angle and height of the camera to obtain a more satisfactory shooting effect. For example, when shooting landscapes or buildings, you may need to place the camera in a lower position to obtain a wider perspective; when shooting portraits or macro photography, you may need to place the camera in a higher position to obtain a better composition and perspective. Therefore, height adjustment is very important for photographers. It can help photographers better grasp the initiative of shooting and obtain better shooting effects.

[0004] Therefore, the center axis of a photographic tripod can usually be raised and lowered when the tripod is fully opened. There are many ways to raise and lower the center axis, and one of them is to set the center axis into multiple sections that can be retracted and stored. However, in some cases, even if all the multiple sections of the center axis are retracted and stored to the minimum position, it still cannot meet the needs of low-position shooting. In this case, one or more sections of the center axis need to be removed. However, the disassembly and installation of the multi-section center axis in the prior art usually cannot be achieved quickly, and tools are needed for disassembly and installation, which is inconvenient to operate and affects the user experience.

[0005] In view of this, it is necessary to propose a new technical solution to overcome the shortcomings of the existing technology. Utility Model Content

[0006] The utility model aims to provide a central axis quick-release mechanism for a photographic tripod, which can facilitate the disassembly and assembly of the central axis without affecting the stability of the central axis connection.

[0007] The technical solution to achieve the purpose of this utility model is as follows:

[0008] A quick-release mechanism for the center axis of a photographic tripod comprises a first shaft section and a second shaft section which can be plugged into each other, wherein the first shaft section has an insertion portion, the insertion portion is provided with a locking groove, the second shaft section has a locking portion which cooperates with the insertion portion, the locking portion comprises a locking member pivotally connected to the second shaft section and a locking block which is squeezed and moved by the locking member, wherein the locking member squeezes the locking block to move close to the insertion portion of the first shaft section and locks it in the locking groove on the insertion portion in a locked state, and when the locking member is in a released state, the locking block can withdraw from the locking groove so as to quickly remove the first shaft section from the second shaft section.

[0009] Furthermore, the second shaft segment includes an outer tube and an inner lining member fixed in the outer tube, and the locking portion is arranged on the inner lining member.

[0010] Furthermore, the locking member is connected to the lining member via a rotating shaft pin.

[0011] Furthermore, the lining member is provided with a sliding groove for the locking block to slide.

[0012] Furthermore, the inner lining is a plastic part, and the outer tube is a metal part.

[0013] Furthermore, both the outer tube and the inner lining are provided with a receiving groove for receiving the locking member.

[0014] Furthermore, a pick-out groove is provided at the end of the accommodating groove for facilitating insertion of a finger to pick out the end of the locking piece.

[0015] Furthermore, the locking member does not protrude beyond the outer surface of the outer tube when in a locked state.

[0016] Furthermore, a protrusion with an arc-shaped contour surface is provided at one pivotal end of the locking member, and further, the cross-sections of the insertion portion and the lining member are triangular.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The quick-release mechanism provided by the utility model realizes the quick-release connection between the first shaft section and the second shaft section through the cooperation between the insertion section and the locking section, wherein the locking member included in the locking section squeezes the locking block to move close to the insertion section of the first shaft section and locks it in the locking groove on the insertion section in the locked state to realize quick installation; when the locking member is in the released state, the locking block can be withdrawn from the locking groove so that the first shaft section can be quickly removed from the second shaft section. It can realize quick disassembly and installation, and because the first shaft section and the second shaft section are firmly locked in the locked state, the stability and reliability of the connection can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the central shaft quick-release mechanism of the utility model.

[0020] Figure 2 It is a three-dimensional exploded view of the central shaft quick-release mechanism of the utility model.

[0021] Figure 3 It is a side view of the central axis quick release mechanism of the utility model in a locked state.

[0022] Figure 4 for Figure 3 Sectional view along line AA.

[0023] Figure 5 It is a side view of the central shaft quick-release mechanism of the utility model in a released state.

[0024] Figure 6 for Figure 5 Sectional view along line BB.

[0025] In the figure, 1-first shaft section; 11-insertion part; 110-locking groove; 2-second shaft section; 21-outer tube; 210-accommodating groove; 211-picking groove; 22-lining member; 221-sliding groove; 23-locking member; 231-bump; 24-locking block; 241-arc-shaped concave surface; 25-rotating shaft pin. 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] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the invention.

[0028] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0030] See also Figures 1 to 6 As shown, the utility model provides a quick-release mechanism for the central axis of a photographic tripod. In one embodiment, the quick-release mechanism for the central axis of the photographic tripod comprises a first shaft section 1 and a second shaft section 2 which can be plugged into each other. The first shaft section 1 has an insertion portion 11, and a locking groove 110 is provided on the insertion portion 11. The second shaft section 2 has a locking portion that cooperates with the insertion portion 11, and the locking portion comprises a locking member 23 pivotally connected to the second shaft section 2 and a locking block 24 that is pressed and moved by the locking member 23. In the locked state, the locking member 23 presses the locking block 24 to move close to the insertion portion 11 of the first shaft section 1 and locks it in the locking groove 110 on the insertion portion 11; when the locking member 23 is in the released state, the locking block 24 can withdraw from the locking groove 110, so as to quickly remove the first shaft section 1 from the second shaft section 2. In this embodiment, the locking member can be a locking wrench or a locking knob. For example, when used for a block structure, a locking wrench is better, while when used for a tubular structure, a locking knob is preferred.

[0031] The quick-release mechanism provided by the utility model realizes the quick-release connection between the first shaft section 1 and the second shaft section 2 through the cooperation between the insertion section 11 and the locking section, wherein the locking member 23 included in the locking section squeezes the locking block 24 to move close to the insertion section 11 of the first shaft section 1 and locks in the locking groove 110 on the insertion section 11 in the locked state, so as to realize quick installation; when the locking member 23 is in the released state, the locking block 24 can withdraw from the locking groove 110, so as to quickly remove the first shaft section 1 from the second shaft section 2. It can realize quick disassembly and installation, and because the first shaft section 1 and the second shaft section 2 are firmly locked in the locked state, the stability and reliability of the connection can be guaranteed.

[0032] See also Figure 2, Figure 4 and Figure 6 As shown, the first shaft section 1 and the second shaft section 2 are both tubular triangular prisms, and their cross sections are triangular. The second shaft section 2 includes an outer tube 21 and an inner lining 22 fixed in the outer tube 21, and the locking portion is arranged on the inner lining 22. The cross sections of the insertion portion 11 and the inner lining 22 are triangular. In this embodiment, the inner lining 22 is a plastic part, and the outer tube 21 is a metal part. The inner lining 22 is a plastic part, which is easy to form holes, grooves and other structures, and is convenient for cooperation with the locking part 23 and the locking block 24; the outer tube 21 is a metal part, which has good structural strength and is not easy to be scratched or damaged.

[0033] The locking member 23 included in the locking part is connected to the lining member 22 through a rotating shaft pin 25. The locking member 23 is in the shape of a long strip, and a protrusion 231 with an arc-shaped contour surface is provided at one end of the locking member 23, which is used to press against the locking block 24. The locking block 24 is provided with an arc-shaped concave surface 241 that cooperates with the protrusion 231. The protrusion 231 with the arc-shaped contour surface cooperates with the arc-shaped concave surface 241, so that the extrusion locking process is smoother.

[0034] In this embodiment, the locking member may be a wrench or a knob. When used for a round tube, etc., it may be replaced by a knob. In this embodiment, a wrench may be selected.

[0035] See also Figure 2 , Figure 4 and Figure 6 As shown, the inner lining 22 is provided with a sliding groove 221 for the locking block 24 to slide. The sliding groove 221 extends along the radial direction of the inner lining 22, so that the locking block 24 can move along the radial direction of the first shaft segment 1 and the second shaft segment 2, so as to press against the locking groove 110 of the insertion portion 11 of the first shaft segment 1, thereby preventing the first shaft segment 1 from being pulled out axially in the locked state. The inner lining 22 and the outer tube 21 are also provided with a receiving groove 210 for accommodating the locking member 23. The receiving groove 210 is provided on the tube wall of the inner lining 22 and the outer tube 21, and the overall extension direction of the receiving groove 210 is the axial direction of the second shaft segment 2, and its shape and size match the locking member 23, so as to be able to accommodate the locking member 23 when the locking member 23 is in the locked state. When the locking piece 23 is in the locked state, it does not protrude from the outer surface of the outer tube 21, that is, when the locking piece 23 is in the locked state, it is located on the inner side of the outer surface of the outer tube 21; this can prevent the locking piece 23 from being accidentally touched due to its protrusion, avoid the lock being mistakenly released, and ensure the reliability of the connection.

[0036] Furthermore, in order to facilitate the operation of the locking member 23 to release the lock, the end of the receiving groove 210 is provided with a picking groove 211 for facilitating the insertion of a finger to pick up the end of the locking member 23. The width and depth of the picking groove 211 can be set slightly larger than the receiving groove 210 to facilitate the insertion of a part of the finger. At the same time, the end of the locking member 23 can be provided with a thinning structure to further facilitate the insertion of a finger under the locking member 23 for picking.

[0037] The disassembly and assembly process of the central axis quick release mechanism of the photographic tripod provided by the utility model is as follows: Figures 3 to 6 As shown, the lining member 22 of the second shaft section 2 is fixed in the outer tube 21 and is arranged close to one end of the outer tube 21, the locking member 23 is connected to the lining member 22 through the rotating shaft pin 25, and the locking block 24 is inserted into the sliding groove 221 of the lining member 22; when assembling, the locking member 23 is moved to the release state (such as Figure 6 As shown in the state), the insertion portion 11 of the first shaft segment 1 is inserted into the inner lining member 22. At this time, since the locking block 24 is not squeezed by the locking member 23, it can slide outward along the sliding groove 221, so that the insertion portion 11 can be smoothly inserted into the inner lining member 22; after the insertion portion 11 is inserted into place, the locking member 23 is pressed downward, and the protrusion 231 of the locking member 23 squeezes the locking block 24 to move toward the insertion portion 11 of the first shaft segment 1 and locks it in the locking groove 110 of the insertion portion 11, and the assembly is completed (as shown in the state). Figure 4 When disassembling, pull the locking member 23 to move the locking member 23 to the released state (such as Figure 6 In the state shown in the figure, the insertion part 11 of the first shaft section 1 is pulled upward out of the lining member 22. At this time, since the locking block 24 is not squeezed by the locking member 23, it can slide outward along the sliding groove 221, so that the insertion part 11 can be smoothly pulled out of the lining member 22, and the disassembly is completed.

[0038] It can be seen from the above description of the specific embodiment that the quick-release mechanism provided by the utility model realizes the quick-release connection between the first shaft section 1 and the second shaft section 2 through the cooperation between the insertion section 11 and the locking section, wherein the locking member 23 included in the locking section squeezes the locking block 24 to move close to the insertion section 11 of the first shaft section 1 and locks in the locking groove 110 on the insertion section 11 in the locked state to realize quick installation; when the locking member 23 is in the released state, the locking block 24 can be withdrawn from the locking groove 110, so as to quickly remove the first shaft section 1 from the second shaft section 2. It can realize quick disassembly and installation, and because the first shaft section 1 and the second shaft section 2 are firmly locked in the locked state, the stability and reliability of the connection can be guaranteed.

[0039] 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.

[0040] 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.

[0041] 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 quick-release mechanism for a central axis of a photographic tripod, comprising a first axis section and a second axis section which can be plugged into each other, characterized in that: The first shaft segment has an insertion portion, and a locking groove is provided on the insertion portion. The second shaft segment has a locking portion that cooperates with the insertion portion. The locking portion includes a locking member pivotally connected to the second shaft segment and a locking block squeezed and moved by the locking member, wherein the locking member squeezes the locking block to move close to the insertion portion of the first shaft segment and locks it in the locking groove on the insertion portion in a locked state, and when the locking member is in a released state, the locking block can be withdrawn from the locking groove so as to quickly remove the first shaft segment from the second shaft segment.

2. The quick-release mechanism for the central axis of a photographic tripod as claimed in claim 1, characterized in that: The second shaft section includes an outer tube and an inner lining member fixed in the outer tube, and the locking portion is arranged on the inner lining member.

3. The quick-release mechanism for the central axis of a photographic tripod as claimed in claim 2, characterized in that: The locking member is connected to the lining member through a rotating shaft pin.

4. The quick-release mechanism for the central axis of a photographic tripod as claimed in claim 2, characterized in that: The lining piece is provided with a sliding groove for the locking block to slide.

5. The quick-release mechanism for the central axis of a photographic tripod as claimed in claim 2, characterized in that: The inner lining is a plastic part, and the outer tube is a metal part.

6. The quick-release mechanism for the central axis of a photographic tripod as claimed in claim 2, characterized in that: The outer tube and the inner lining are both provided with a receiving groove for receiving the locking member.

7. The quick-release mechanism for the central axis of a photographic tripod as claimed in claim 6, characterized in that: The end of the accommodating groove is provided with a picking groove for facilitating the insertion of a finger to pick up the end of the locking piece.

8. The quick-release mechanism for the central axis of a photographic tripod as claimed in claim 6, characterized in that: The locking piece does not protrude beyond the outer surface of the outer tube when in a locked state.

9. The quick-release mechanism for the central axis of a photographic tripod as claimed in claim 1, characterized in that: A protrusion with an arc-shaped contour surface is arranged at one pivotally connected end of the locking member, and an arc-shaped concave surface matching with the protrusion is arranged on the locking block.

10. The quick-release mechanism for the central axis of a photographic tripod as claimed in claim 2, characterized in that: The inserting portion and the lining member have triangular cross sections.

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