Ball joint connecting frame and tripod

Abstract

The ball joint connecting frame comprises an upper carrying table, a lower pressing plate, a ball head hinging piece, a connecting screw and a locking spiral wrench, a hinging rod is driven to rotate in a three-dimensional mode through ball head three-dimensional rotation of the ball head hinging piece, and therefore three-dimensional angle direction adjustment of a foot pipe hinged to the hinging rod is achieved. Compared with a conventional tripod foot tube which can only be adjusted in a telescopic mode to achieve leveling, the adjustable freedom degree of the tripod foot tube is further increased, the adjusting range is larger, the leveling requirement of the tripod can be better met, the tripod foot tube is locked and fixed through the ball head after leveling, operation is easier and more convenient, and the fixing effect is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic accessories, in particular to a ball joint connection frame and a tripod. Background Art

[0002] At present, many devices such as photographic equipment and measuring equipment require the working environment to have good levelness. For equipment that needs to work in the field or other complex terrain conditions, in order to ensure the normal operation of the equipment and reduce errors, the equipment is required to have good levelness.

[0003] The existing tripods for setting up these devices can generally only be leveled by length extension, and the range and method of leveling are extremely limited. Moreover, the fixing effect after adjustment is not good. Summary of the invention

[0004] Technical issues solved

[0005] The utility model discloses a ball joint connecting frame, which increases the adjustable freedom of the tripod foot pipe through the ball joint connecting frame, has a larger adjustment range, can make the tripod leveling operation more convenient, and has a simple and convenient adjustment method.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ball joint connecting frame, the ball joint connecting frame includes an upper loading platform, a lower pressure plate, a ball head hinge, a connecting screw and a locking screw wrench, wherein the ball head hinge includes a ball head and a hinge rod connected to the ball head, there are three ball head hinges, the lower pressure plate is nested on the upper loading platform, three hemispherical concave cavities are formed on the bottom surface of the upper loading platform respectively, and a spherical cavity is formed correspondingly on the upper end surface of the lower pressure plate corresponding to the positions of the three hemispherical concave cavities, together forming a spherical cavity with the same curvature radius of the ball head, wrapping the ball head, and the upper loading platform and A gap is left between the lower pressure plates to provide space for relative movement so as to lock the ball head hinge. The lower spherical cavity of the lower pressure plate is designed to be a conical cavity that gradually widens from top to bottom. The hinge rod extends from the conical cavity. The conical cavity provides a swinging space for the hinge rod. The connecting screw is fixedly connected to the upper platform, passes through the central through hole of the lower pressure plate, and is threadedly connected to the locking screw wrench below. The ball head is rotated to drive the hinge rod to adjust the angle. After the adjustment is in place, the locking screw wrench is turned to squeeze the lower pressure plate upward to squeeze the ball head hinge for locking.

[0008] In a possible implementation, an inner groove adapted to the lower pressing plate is formed on the bottom surface of the upper loading platform to limit the lower pressing plate and ensure the formation of a aligned spherical cavity.

[0009] In a possible implementation, a circular protrusion is formed at the center of the lower pressure plate, and a circular groove is designed on the upper platform corresponding to the position of the circular protrusion. The relative position between the upper platform and the lower pressure plate is limited by the cooperation between the circular protrusion and the circular groove.

[0010] In a possible implementation, there are at least three ball head hinges and three spherical cavities.

[0011] In a possible implementation, the hinge rod is further designed with a hinge hole or a connecting piece.

[0012] In a possible implementation, the lower end of the hinged rod is further designed with positioning teeth.

[0013] In a possible implementation, the top of the connecting screw is designed with a thread for threading other equipment.

[0014] In order to achieve the above purpose, the utility model also provides a technical solution: providing a tripod, the tripod includes three leg tubes and the above-mentioned ball joint connecting frame, the three leg tubes are respectively hinged on the hinge rod of the ball joint connecting frame through the hinge shaft and the hinge hole.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a ball joint connection frame and a tripod, which have the following beneficial effects:

[0017] The ball joint connecting frame includes an upper loading platform, a lower pressure plate, a ball head hinge, connecting screws and a locking screw wrench. The ball head of the ball head hinge drives the hinge rod to rotate in three dimensions, thereby realizing the three-dimensional angle direction adjustment of the leg tube hinged on the hinge rod. Compared with the conventional tripod leg tube that can only be adjusted by telescopic adjustment to achieve leveling, the scheme of the utility model further increases the adjustable freedom of the tripod leg tube, has a larger adjustment range, and can better meet the tripod leveling requirements. After leveling, the ball head is locked and fixed, which is easier to operate and has a more stable fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is an exploded view of the ball joint connection frame of the utility model;

[0020] Figure 2This is a schematic diagram of the overall structure of the ball joint connection frame of the utility model;

[0021] Figure 3 is along Figure 2 Schematic diagram of the cross section along the AA section line;

[0022] Figure 4 It is a schematic diagram of the structure of the upper loading platform of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the lower pressing plate of the utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the ball head hinge of the utility model;

[0025] Figure 7 It is a schematic diagram of the overall structure of the tripod of the utility model.

[0026] Reference numerals:

[0027] 1. Upper platform; 2. Lower pressure plate; 3. Ball joint; 4. Connecting screw; 5. Locking screw wrench; 31. Ball head; 32. Articulated rod; 33. Articulated hole; 34. Positioning tooth; 11. Hemispherical concave cavity; 12. Inner groove; 13. Ring groove; 21. Spherical cavity; 22. Conical cavity; 23. Circular protrusion; 6. Gap; 100. Ball joint connecting frame; 200. Foot tube. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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 in 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.

[0029] See also Figure 1-Figure 6, is a structural schematic diagram of the ball joint connection frame of the utility model. In the embodiment of the utility model, the ball joint connection frame includes an upper loading platform 1, a lower pressure plate 2, a ball head hinge 3, a connecting screw 4 and a locking screw wrench 5, wherein the ball head hinge 3 includes a ball head 31 and a hinge rod 32 connected to the ball head 31, the lower pressure plate 2 is nested on the upper loading platform 1, and the bottom surface of the upper loading platform 1 forms a hemispherical concave cavity 11, and the upper end surface of the lower pressure plate 2 forms a spherical cavity 21 corresponding to the position of the hemispherical concave cavity 11, and the hemispherical concave cavity 11 and the spherical cavity 21 together form a spherical cavity with the same curvature radius as the ball head 31, which wraps the ball head 31. A gap 6 is left between the upper loading platform 1 and the lower pressure plate 2 to provide space for relative movement so as to lock the ball head hinge 3. The lower spherical cavity 21 of the lower pressure plate is designed to be a conical cavity 22 that gradually widens from top to bottom. The hinge rod 32 extends from the conical cavity 22. The conical cavity 22 provides a swinging space for the hinge rod 32. The connecting screw 4 is fixedly connected to the upper loading platform 1, and passes through the central through hole of the lower pressure plate 2, and is screwed to the locking screw wrench 5 below. The ball head 31 is rotated to drive the hinge rod 32 to adjust the angle. After the adjustment is in place, the locking screw wrench 5 is turned to squeeze the lower pressure plate 2 upward to squeeze the ball head hinge 3 for locking.

[0030] The ball joint connecting frame of the utility model wraps the ball head together with the hemispherical concave cavity of the upper loading platform and the spherical cavity of the lower pressure plate, and reserves a conical cavity and a gap for the rotation space of the ball head and the hinge rod, thereby forming a ball joint structure. The ball head is rotated in a certain three-dimensional angle direction, which drives the hinge rod to rotate three-dimensionally to change the angle, thereby realizing the three-dimensional angle direction adjustment of the leg tube hinged on the hinge rod. Compared with the design that the leg tube of the conventional tripod can only be telescopically adjusted to achieve leveling, the present scheme further increases the adjustable freedom of the tripod leg tube, has a larger adjustment range, can better meet the tripod leveling needs, and after leveling, the ball head is locked and fixed, the fixing effect is more stable, and the whole adjustment process is more flexible and convenient.

[0031] Among them, in a possible implementation, the bottom surface of the upper platform 1 forms an inner groove 12 adapted to the lower pressing plate 2 to limit the lower pressing plate 2 to ensure the formation of a spherical cavity in position. Through this nested limiting and fixing method, it is convenient to disassemble and assemble, and can also make the ball joint connection frame structure more compact.

[0032] Furthermore, a circular protrusion 23 can be formed at the center of the lower pressing plate 2, and a circular groove 13 can be designed at the upper loading platform 1 corresponding to the position of the circular protrusion 23. The relative position between the upper loading platform 1 and the lower pressing plate 2 can be further limited by the cooperation between the circular protrusion 23 and the circular groove 13.

[0033] In the specific implementation, the inner groove of the upper loading platform and the lower pressure plate are adapted to limit the fixation, and the annular groove of the upper loading platform and the circular protrusion in the center of the lower pressure plate can be selected. Of course, when both methods are used, a double limit fixation effect can be achieved, which is better.

[0034] Among them, in the specific implementation, there are at least 3 ball joints and spherical cavities. Conventional support structure, 3-leg support can meet the stability requirements. Of course, in the actual application process, one or more ball joints and spherical cavities cooperating with the ball joints can be added according to the actual use scenario. The drawings in this application specification are mainly displayed in 3 numbers, but the number of ball joints and spherical cavities in this solution is not limited to this.

[0035] Among them, in a possible implementation, the hinge rod 32 is also designed with a hinge hole 33. Through the hinge hole, other components can be hinged. Of course, other connectors can also be designed on the hinge rod for connecting other devices. For example, it can be connected to a sphere for connecting other ball joints.

[0036] A positioning tooth 34 is also designed on the hinge rod 32 to cooperate with the hinged parts to achieve a positioning and fixing effect.

[0037] Among them, in a possible implementation, the top of the connecting screw 4 is designed with a thread for screwing other devices. For example, a pan head, a quick release plate, etc. can be connected to the top of the ball joint connection frame.

[0038] Based on the ball joint connection frame provided in the above embodiments of the present invention, the present invention further provides a tripod, see Figure 7 As shown, the tripod comprises three leg tubes 200 and the above-mentioned ball joint connecting frame 100, wherein the three leg tubes 200 are hinged on the hinge rod of the ball joint connecting frame through the hinge shaft and the hinge hole.

[0039] From the detailed description of the ball joint articulated frame and the tripod of the utility model in combination with the drawings in the specification, it can be understood that the ball joint articulated frame of the utility model includes an upper loading platform, a lower pressure plate, a ball head hinge, connecting screws and a locking screw wrench. The three-dimensional rotation of the ball head of the ball head hinge drives the three-dimensional rotation of the hinge rod, thereby realizing the three-dimensional angular direction adjustment of the leg tube hinged on the hinge rod. Compared with the conventional tripod leg tube that can only be telescopically adjusted to achieve leveling, the scheme of the utility model further increases the adjustable freedom of the tripod leg tube, and the adjustment range is larger, which can better meet the tripod leveling requirements. After leveling, the ball head is locked and fixed, which is easier to operate and has a more stable fixing effect.

[0040] Of course, the ball joint connection frame of the present invention can also be applied to other fields that require angle adjustment to meet the needs of a wider range of angle adjustment.

[0041] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball joint connection frame, characterized in that: The ball joint connecting frame includes an upper loading platform, a lower pressure plate, a ball head hinge, a connecting screw and a locking screw wrench, wherein the ball head hinge includes a ball head and a hinge rod connected to the ball head, the lower pressure plate is nested on the upper loading platform, and the bottom surface of the upper loading platform is respectively formed with a hemispherical concave cavity, and the upper end surface of the lower pressure plate is correspondingly formed with a spherical cavity at the position of the hemispherical concave cavity, and together form a spherical cavity with the same curvature radius as the ball head, wrapping the ball head, and a gap is left between the upper loading platform and the lower pressure plate to provide space for relative movement. The ball head hinge is locked, and the lower spherical cavity of the lower pressure plate is designed to be a conical cavity that gradually widens from top to bottom. The hinge rod extends out from the conical cavity. The conical cavity provides a swinging space for the hinge rod. The connecting screw is fixedly connected to the upper platform, passes through the central through hole of the lower pressure plate, and is threadedly connected to the locking screw wrench below. The angle of the hinge rod is adjusted by rotating the ball head. After the adjustment is in place, the locking screw wrench is turned to squeeze the lower pressure plate upward to squeeze the ball head hinge for locking.

2. The ball joint connection frame according to claim 1, characterized in that: An inner groove adapted to the lower pressing plate is formed on the bottom surface of the upper loading platform to limit the lower pressing plate and ensure the formation of a aligned spherical cavity.

3. The ball joint adapter according to claim 1, characterized in that: A circular protrusion is formed at the center of the lower pressing plate, and a circular groove is designed on the upper loading platform corresponding to the position of the circular protrusion. The relative position between the upper loading platform and the lower pressing plate is limited by the cooperation between the circular protrusion and the circular groove.

4. The ball joint adapter according to claim 1, characterized in that: There are at least three ball head hinges and three spherical cavities.

5. The ball joint adapter according to claim 1, characterized in that: The lower end of the hinge rod is also designed with a hinge hole or a connecting piece.

6. The ball joint adapter according to claim 5, characterized in that: The lower end of the hinged rod is also designed with positioning teeth.

7. The ball joint adapter according to claim 1, characterized in that: The top of the connecting screw is designed with a thread for screwing other equipment.

8. A tripod, characterized in that: The tripod comprises three leg tubes and a ball joint connecting frame as described in any one of claims 1 to 7, wherein the three leg tubes are respectively hinged to the hinge rod of the ball joint connecting frame through the cooperation of hinge shafts and hinge holes.

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