Magnetic attraction type ball universal head and tripod universal head assembly

Abstract

To provide a magnetic attraction type ball universal head which has optimized use safety and has high practicability, and a tripod universal head assembly including the same.SOLUTION: A magnetic attraction type ball universal head includes: a universal ball base including a ball head and a connection handle; a restriction base including a ball receiver for storing the ball head, and a restriction member which is movably brought into contact with the ball head, and can restrict rotation of the ball head in the ball receiver; a magnetic attraction member fixed into the ball receiver, and adsorbing the ball head; and a first fixing part and a second fixing part used for removably connecting an external accessory component, and connected to each of the connection handle and the restriction base. Such a defect of a conventional ball universal head that when locking by a lock device is released, a camera fixed to the ball universal head immediately falls, and the camera is easy to be broken is dissolved, and use safety of the ball universal head when a photographic angle is freely adjusted and fixed is optimized.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to the technical field of camera accessories, and more particularly to a magnetic attraction type ball head and tripod head assembly. [Background technology]

[0002] In the field of photography, the pan head is an important photography support system, and is basically essential when using a tripod. According to the structural principle, the pan head can be divided into ball head, three-dimensional pan head, cantilever pan head, hydraulic pan head, etc. Among the many tripod pan heads, the ball head is becoming more and more popular due to its advantages such as quick positioning and easy locking. In addition, the ball head is relatively inexpensive and can be made small and lightweight. Compared with other types of pan heads, the ball head can be made even smaller and the production cost is relatively low, so most portable tripods and pan heads on the market use ball heads.

[0003] However, there are obvious drawbacks to the ball head. The ball head is locked by controlling the contact surface and tightness of the rubber block at the bottom of the ball of the ball head with the lock knob, so with increased use, it is easy to wear out, and the locking action of the locking device at the bottom will not be synchronized. When the locking force is reduced, the most direct manifestation is the "nodding" phenomenon of the ball head. This is a problem that is often encountered by users who often use ball heads. In addition, when adjusting to a certain angle, the locking force of the ball of the head by the lock knob needs to be reduced, so the gravity of the camera will cause the ball of the head to fall immediately after losing the contact force. In any of the above cases, the camera fixed to the universal ball head may easily come off or hit the ball receiver or other accessories of the ball head hard, which may cause damage to the camera and economic losses. In addition, when the tripod is set at a suitable angle, fine adjustments are often required to adjust the angle when composing or shooting. Once the locking device at the bottom of the tripod head is released, the shooting angle will be changed significantly, preventing the photographer from more accurately adjusting the shooting angle to achieve the perfect composition and shooting effect, and as a result, it takes a lot of time to reset the tripod angle. Summary of the Invention [Problem to be solved by the invention]

[0004] The objective of the present invention is to provide a magnetic attraction type ball head and tripod head assembly to solve the drawback of the conventional ball head that the camera fixed on the ball head will fall immediately after the locking device is released, and the camera is easily damaged. In the present invention, a magnetic attraction member and a universal ball head that generate a preset constant magnetic attraction force are introduced, so that the ball head will not fall immediately due to its own gravity or the gravity of the external accessories connected to the first fixing part, thereby avoiding damage or breakage of the external accessories, and the angle can be easily fine-tuned manually by the magnetic force fixation, so that the angle can be easily fine-tuned to achieve the perfect composition and shooting effect, the use safety of the ball head when freely adjusting and fixing the shooting angle is optimized, and the problem of damage to the external accessories is reduced, which is highly practical and has a promising market prospect. [Means for solving the problem]

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows: A magnetic attraction type ball head, a universal ball base including a ball head and a connecting handle; a limiting base including a ball receiver for receiving the ball head and a limiting member that is movably abutted against the ball head and can limit the rotation of the ball head within the ball receiver; a magnetic attraction member fixed in the ball receiver and adapted to attract the ball head; The device further includes a first fixed part and a second fixed part, which are used for removably connecting an external accessory and are connected to the connecting handle and the limiting base, respectively.

[0006] In addition, in the present invention, the ball head of the universal ball base may be made of a magnetically attractable metal material. A certain amount of attraction force is generated between the ball head and the ball receiver by the magnetic attraction member, and the magnetic attraction member attracts the ball head to provide a magnetic attraction force for adsorption and fixation, so that when the limiting member reduces the abutment locking force with the ball head, the magnetic attraction force plays the role of adsorption assistance and buffer damping, and can provide a certain support for the ball head, preventing the ball head from falling over due to the gravity of itself or the external accessory connected to the first fixing part, thereby avoiding damage or breakage of the external accessory. In addition, the magnetic attraction force between the magnetic attraction member and the ball head does not gradually decrease due to wear after long-term use, as in the contact damping between the conventional rubber block and the ball head, and the magnetic attraction force between the magnetic attraction member and the ball head of the present invention exists stably for a long time, and has good reliability and stability.

[0007] The present invention has a simple structure, and by introducing a magnetic attraction member and a universal ball base which generate a preset constant magnetic attraction force, the magnetic attraction force is smaller than the maximum static friction force between the limiting member and the ball head, and is larger than the sliding friction force between the limiting member and the ball head. The present invention combines the advantages of multi-angle adjustment and fastening by the universal ball base, and solves the shortcomings of the conventional ball head that the "nodding" phenomenon is likely to occur when wear occurs or the locking force is lost, resulting in damage to external accessories. The present invention combines the stable existence of the preset magnetic attraction force with the limitation by the movable abutment of the limiting member, thereby optimizing the use safety of the ball head when freely adjusting and fixing the shooting angle, and reducing the problem of damage to external accessories. In addition, when quick composition or shooting is desired, the ball head is fixed by the magnetic attraction force of the magnetic attraction member when the limiting member is released, which avoids a large change in the shooting angle of the camera, and the angle can be easily fine-tuned manually by fixing it by magnetic force, and the perfect composition or shooting effect can be obtained by fine-tuning the angle, which is highly practical and has a promising market prospect.

[0008] In addition, in the present invention, the external accessories connected to the first and second fixed parts include, but are not limited to, many things such as cameras, mobile phones, tripods, support rods, stabilizers, etc. The connection handle and limit base adapter of the first and second fixed parts make it possible to efficiently attach and detach various external accessories, thereby making the magnetic attraction type ball head of the present invention multifunctional.

[0009] Furthermore, the limiting member includes first and second clamp blocks that are positioned within the ball receiver and are movable relative to one another, and a bidirectional screw whose one end passes through the ball receiver and is screw-connected to both the first and second clamp blocks, and when the bidirectional screw rotates, the helical directions of the first and second clamp blocks are opposite, and the first and second clamp blocks movably abut against the ball heads due to the rotation of the bidirectional screw.

[0010] In addition, in the present invention, the limiting member for maintaining the angle of the universal ball base is locked by clamping the ball head, and when the bidirectional screw rotates clockwise or counterclockwise, the first clamp block and the second clamp block, which have opposite spiral directions, move toward each other or away from each other. Based on this principle, the first clamp block and the second clamp block adjust whether or not they abut against the ball head to keep the rotation angle of the ball head constant. Such a fastening method of the limiting member of the present invention has a simple structure and is reliable and effective in movement. Furthermore, the first clamp block and the second clamp block may be provided with a rubber member or a plastic member on the side that contacts the ball head.

[0011] In addition, the limiting member further includes an adjustment lever provided at the other end of the bidirectional screw, which makes it easier to apply force and facilitates operation.

[0012] Furthermore, the magnetic attraction member includes arc-shaped magnetic attraction links and / or annular magnetic attraction links distributed around the outer periphery of the ball head, and the arc-shaped magnetic attraction links and annular magnetic attraction links are both made up of a plurality of magnetic blocks arranged in sequence, and the sides of the arc-shaped magnetic attraction links and annular magnetic attraction links facing the ball head conform to the spherical curvature of the ball head.

[0013] In addition, the number of magnetic attraction members is not limited, and either the arc-shaped magnetic attraction link or the annular magnetic attraction link may be provided, or both the arc-shaped magnetic attraction link and the annular magnetic attraction link may be provided. The arc-shaped magnetic attraction link or the annular magnetic attraction link is formed by sequentially arranging a plurality of magnetic blocks, which allows it to be well matched to the arc surface shape of the ball head, and reduces the difficulty of processing each magnetic block and the difficulty of attaching and fixing the arc-shaped magnetic attraction link or the annular magnetic attraction link to the outside of the ball head.

[0014] Furthermore, the ball receiver includes an annular base that is circumferentially mounted on the end of the ball head, and a cylindrical housing that is circumferentially mounted on the outside of the annular base, one end of the bidirectional screw passes through the cylindrical housing and is screw-connected to the first clamp block and the second clamp block, respectively, and the magnetic attraction member is fitted into the annular base and is located between the cylindrical housing and the ball head.

[0015] In addition, the annular base is provided at the end of the ball head in a bowl shape and serves as the base for the ball head to rotate, and the magnetic attraction member is annularly fitted into the annular base, which is one example of a preferred embodiment, and the magnetic attraction member may be provided on the outer periphery of the ball head in the form of an arc-shaped magnetic attraction link and / or annular magnetic attraction link, and cooperate with the annular base to serve as the base for the ball head to rotate, and the magnetic attraction member generates a uniform magnetic attraction force on the ball head. In this way, the design of the entire structure is optimized, the fastening and limiting effect on the ball head is good, and the attraction force on the ball head is generated uniformly, and the damping effect when the ball head rotates is the same, which improves the feel and effect of use.

[0016] Furthermore, a frustum hole of gradually increasing diameter is drilled in the bottom of the annular base, the first clamp block and the second clamp block move relatively within the outer diameter range of the bottom surface of the frustum hole, and the outer periphery of the upper end surfaces of the first clamp block and the second clamp block is chamfered parallel to the inner slope of the frustum hole.

[0017] In addition, the annular base and the limiting member work together, a frustum hole is opened in the bottom of the annular base, the movement of the first clamp block and the second clamp block is limited to within the outer diameter range of the bottom surface of the frustum hole, the ball head is installed in the annular base, the end of the ball head is exposed from the lower bottom surface of the frustum hole, the first clamp block and the second clamp block movably abut against the end of the ball head at the lower bottom surface of the frustum hole, and the inner slope of the frustum hole contacts and fits into the chamfer opened in the upper end surface of the first clamp block and the second clamp block, thereby providing a guiding effect for the movement of the first clamp block and the second clamp block while improving the stability during movement of the first clamp block and the second clamp block.

[0018] In addition, at least one escape groove is provided at the end of the cylindrical housing, and the escape groove is located at the end of the connecting handle extending from the cylindrical housing. The escape groove increases the rotation angle of the large universal ball base, and the connecting handle is provided above the ball head in the universal ball base, and there is contact interference between the connecting handle and the cylindrical housing, so the rotation range of the connecting handle is limited, so an escape groove is provided at the upper end of the cylindrical housing. During the rotation of the ball head, the connecting handle avoids the ball head and enters the escape groove, and the rotation angle and swing range of the universal ball base are increased.

[0019] Further, the first fixing part includes a fixing plate fixed to the connection handle, an adjusting plate movably abutting against the fixing plate, and a first limited rotation rod whose one end passes through the adjusting plate and is screwed to the fixing plate, and an inverted trapezoidal engaging groove with a small opening and a large bottom is formed on the upper end surface of the fixing plate and the adjusting plate, which is used to engage a camera quick release plate. The width of the inverted trapezoidal engaging groove can be adjusted by moving the adjusting plate, so that it can be adapted to various sizes of quick release plates. In the present invention, the first fixing part connected to the connection handle is preferably used to externally attach accessories such as a camera, and the connection handle faces upward when used, and thus, in the present invention, it is easy to rotate and adjust the angle when used.

[0020] Furthermore, the second fixing part includes a rotating base having one end inserted into the ball receiver and rotatably engaged with the lower end of the ball receiver, and a second limiting rotating rod having one end penetrating the ball receiver and movably abutting the rotating base, the second limiting rotating rod is screwed to the ball receiver, and a mounting screw hole is further opened at the bottom of the rotating base for screwing to a tripod. In addition, a standard mounting bolt is provided at the mounting part of an external accessory such as a tripod. In the present invention, when it is necessary to adjust the shooting angle after being fixed to the tripod by the rotating base, the ball receiver is rotated to rotate the structures such as the universal ball base, the limiting base, and the first fixing part fixed relatively to the ball receiver relative to the rotating base, thereby enabling 360-degree adjustment of the angle centered on the axis of the ball receiver, and the second limiting rotating rod is screwed to abut the rotating base, limiting the relative rotation between the rotating base and the ball receiver, and this structure is simple and efficient.

[0021] The tripod head includes a tripod and further includes the above-mentioned magnetic attraction type ball head, wherein the second fixing part is removably screw-connected to the tripod. Effect of the Invention

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, a certain amount of suction force is generated between the ball head and the ball receiver by the magnetic suction member, and the magnetic suction member suctions the ball head to provide a magnetic suction force for suction fixation, so that when the limiting member reduces the contact locking force with the ball head, the magnetic suction force plays the role of suction assistance and buffer damping, and can provide a certain support for the ball head, preventing the ball head from falling over due to the gravity of itself or the external accessory connected to the first fixing part, thereby avoiding damage or breakage of the external accessory. Furthermore, the magnetic suction force between the magnetic suction member and the ball head does not gradually decrease due to wear after long-term use, unlike the contact damping between the conventional rubber block and the ball head, and the magnetic suction force between the magnetic suction member and the ball head of the present invention exists stably for a long time, and has good reliability and stability. When quick composition or shooting is required, the limiting member can be released and the ball head can be fixed by the magnetic attraction force of the magnetic attraction member, thereby avoiding significant changes in the camera's shooting angle. The magnetic fixation makes it easy to manually fine-tune the angle, and perfect composition and shooting effects can be achieved by fine-tuning the angle. The safety of using the ball head when freely adjusting and fixing the shooting angle is optimized, the problem of damage to external accessories is reduced, the difficulty of fine-tuning the angle during shooting is reduced, the use effect during shooting is improved, the practicality is high, and the market has a promising future. [Brief description of the drawings]

[0023] [Figure 1] 1 is a schematic diagram of the entire structure of Example 1 of the present invention. [Diagram 2] 2 is a cross-sectional view of the AA portion in FIG. 1. [Diagram 3] FIG. 2 is an exploded view of the first embodiment of the present invention. [Figure 4] 13 is a schematic diagram of a connection of a first fixed portion in Example 3 of the present invention. FIG. [Diagram 5] FIG. 11 is a schematic diagram of a connection of a second fixed portion in Example 3 of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] The present invention will be further described below with reference to specific embodiments. Here, the drawings are only used for illustrative purposes, are not actual drawings, but are merely schematic drawings, and cannot be understood as limiting the present patent. In order to better explain the embodiments of the present invention, the drawings do not represent the dimensions of the actual product, and some components are omitted, enlarged or reduced. It is understood by those skilled in the art that some known structures and their descriptions in the drawings are omitted.

[0025] The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components. It should be understood that in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" and the like is merely for the purpose of facilitating and simplifying the description of the present invention, and does not indicate or suggest that the device or element in question must have a specific orientation, be configured, or operate in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are merely illustrative and do not limit the present patent, and a person skilled in the art can understand the specific meaning of the above terms according to the specific situation.

[0026] Example 1 As shown in Figures 1 to 3, the magnetic attraction type ball head is a universal ball base 1 including a ball head 11 and a connecting handle 12; a limiting base 2 including a ball receiver 21 for receiving the ball head 11 and a limiting member 22 that movably contacts the ball head 11 and can limit the rotation of the ball head 11 within the ball receiver 21; A magnetic attraction member 3 that is fixed in the ball receiver 21 and attracts the ball head 11; The first and second fixing parts 4 and 5 are used for removably connecting external accessories and are connected to the connecting handle 12 and the limiting base 2, respectively.

[0027] In this embodiment, the ball head 11 of the universal ball base 1 may be made of a magnetically attractive metal material.

[0028] This embodiment has a simple structure, and by introducing a magnetic attraction member 3 and a universal ball base 1 that generate a preset constant magnetic attraction force, this magnetic attraction force is smaller than the maximum static friction force between the limiting member 22 and the ball head 11, and is greater than or equal to the sliding friction force between the limiting member 22 and the ball head 11.

[0029] In this embodiment, by combining the advantages of multi-angle adjustment and fastening by the universal ball head 1, the technical disadvantage of the conventional ball head that the "nodding" phenomenon is likely to occur when wear or loss of locking force occurs, resulting in damage to external accessories. In this embodiment, the combination of the stable existence of the pre-installed magnetic attraction force and the restriction by the movable abutment of the limiting member 22 optimizes the use safety of the ball head when freely adjusting and fixing the shooting angle, and reduces the problem of damage to external accessories. In addition, when quick composition or shooting is desired, the ball head 11 is fixed by the magnetic attraction force of the magnetic attraction member 3 when the limiting member 22 is released, so that the camera's shooting angle is prevented from changing significantly, and the angle can be easily fine-tuned manually by fixing it by fine-tuning the angle, which is highly practical and has a promising future in the market.

[0030] In this embodiment, the first fixed part 4 is fixedly connected to the connection handle 12 and is used to attach a camera externally, and the second fixed part 5 is connected to the limit base 2 and is used to attach a tripod, a support rod or a stabilizer externally. In use, the ball head 11 rotates in the ball receiver 21, and the connection handle 12 of the ball head 11 faces upward and can rotate and swing within a predetermined space, and the camera is attached externally to the first fixed part 4 connected to the connection handle 12, thereby realizing adjustment and rotation of various positions and angles. The adapter of the connection handle 12 and the limit base 2 by the first fixed part 4 and the second fixed part 5 makes it possible to efficiently attach and detach the ball head and attach various external accessories, thereby making the magnetic attraction type ball head of this embodiment multifunctional.

[0031] As shown in Figures 2 and 3, the limiting member 22 includes a first clamp block 221 and a second clamp block 222 which are positioned within the ball receiver 21 and are relatively movable, and a bidirectional screw 223 whose one end passes through the ball receiver 21 and is screwed into both the first clamp block 221 and the second clamp block 222. When the bidirectional screw 223 rotates, the spiral directions of the first clamp block 221 and the second clamp block 222 are opposite, and the first clamp block 221 and the second clamp block 222 movably abut against the ball head 11 due to the rotation of the bidirectional screw 223.

[0032] In this embodiment, the limiting member 22 for maintaining the angle of the universal ball base 1 is locked by clamping the ball head 11, and when the bidirectional screw 223 rotates clockwise or counterclockwise, the first clamp block 221 and the second clamp block 222, which have opposite spiral directions, move toward each other or away from each other. Based on this principle, the contact between the first clamp block 221 and the second clamp block 222 and the ball head 11 is adjusted to keep the rotation angle of the ball head 11 constant. This fastening method of the limiting member 22 has a simple structure and is reliable and effective in operation.

[0033] In this embodiment, the first clamp block 221 and the second clamp block 222 may be provided with rubber gaskets on the sides that contact the ball heads, thereby increasing the friction resistance and ensuring the limiting effect.

[0034] 2 and 3, the limiting member 22 further includes an adjustment lever 224 provided at the other end of the bidirectional screw 223. By providing the adjustment lever 224, it becomes easier to apply force to rotate the bidirectional screw 223, making the operation easier.

[0035] In this embodiment, the magnetic attraction member 3 includes an arc-shaped magnetic attraction link 31 and an annular magnetic attraction link 32 distributed on the outer periphery of the ball head 11, and each of the arc-shaped magnetic attraction link 31 and the annular magnetic attraction link 32 is made up of a plurality of magnetic blocks arranged in order, and the sides of the arc-shaped magnetic attraction link 31 and the annular magnetic attraction link 32 facing the ball head 11 match the spherical curvature of the ball head 11. This allows the magnetic attraction member 3 to be well matched to the arc surface shape of the ball head 11, reducing the difficulty of processing each magnetic block and the difficulty of attaching and fixing the arc-shaped magnetic attraction link 31 or the annular magnetic attraction link 32 to the outside of the ball head 11.

[0036] As shown in FIG. 2, the ball receiver 21 includes an annular base 211 that is mounted around the end of the ball head 11, and a cylindrical housing 212 that is mounted around the outside of the annular base 211. One end of a bidirectional screw 223 passes through the cylindrical housing 212 and is screw-connected to the first clamp block 221 and the second clamp block 222, respectively.

[0037] In this embodiment, in the magnetic attraction member 3 , the annular magnetic attraction link 32 is fitted into the annular base 211 and is located between the cylindrical housing 212 and the ball head 11 .

[0038] The annular base 211 is provided in a bowl shape at the end of the ball head 11 and functions as a base on which the ball head 11 rotates, and in the magnetic attraction member 3, the annular magnetic attraction link 32 is fitted into the annular base 211, and in the magnetic attraction member 3, the arc-shaped magnetic attraction link 31 is provided on the outer periphery of the ball head 11 and functions as a base on which the ball head 11 rotates in cooperation with the annular magnetic attraction link 32 of the annular base 211, and the magnetic attraction member 3 generates a uniform magnetic attraction force on the ball head 11. In this way, the fastening limiting action on the ball head 11 is improved, while the attraction force on the ball head 11 is generated uniformly, and the damping effect when the ball head 11 rotates is the same, resulting in a good feeling of use and good effect.

[0039] As shown in FIG. 2 , a frustum hole 2110 of gradually increasing diameter is formed at the bottom of the annular base 211, and the first clamping block 221 and the second clamping block 222 move relatively within the outer diameter range of the bottom surface of the frustum hole 2110. A chamfer is formed on the outer periphery of the upper end surface of the first clamping block 221 and the second clamping block 222, parallel to the inner slope of the frustum hole 2110.

[0040] In addition, the annular base 211 and the limiting member 22 work together, a frustum hole 2110 is opened in the bottom of the annular base 211, the movement of the first clamp block 221 and the second clamp block 222 is limited to within the outer diameter range of the bottom surface of the frustum hole 2110, the ball head 11 is installed in the annular base 211, the end of the ball head 11 is exposed from the lower bottom surface of the frustum hole 2110, the first clamp block 221 and the second clamp block 222 movably abut against the end of the ball head 11 at the lower bottom surface of the frustum hole 2110, and the inner slope of the frustum hole 2110 comes into contact with and engages with the chamfer opened in the upper end surface of the first clamp block 221 and the second clamp block 222, thereby generating a guiding action for the movement of the first clamp block 221 and the second clamp block 222, while improving the stability during movement of the first clamp block 221 and the second clamp block 222.

[0041] 3, at least one escape groove 2121 is formed at an end of the cylindrical housing 212, and the escape groove 2121 is located at an end of the connecting handle 12 extending from the cylindrical housing 212. In this embodiment, the arc-shaped magnetic attraction link 31 of the magnetic attraction member 3 is located at the end of the cylindrical housing 212 where the escape groove 2121 is formed, and the arc-shaped magnetic attraction link 31 is provided on the outer periphery of the ball head 11 and is avoided by the escape groove 2121.

[0042] The escape groove 2121 increases the rotation angle of the universal ball base 1, and the universal ball base 1 is provided with the connecting handle 12 above the ball head 11, and there is contact interference between the connecting handle 12 and the cylindrical housing 212, so the rotation range of the connecting handle 12 is limited, and the escape groove 2121 is opened at the upper end of the cylindrical housing 212. During the rotation of the ball head 11, the connecting handle 12 avoids the ball head 11 and enters the escape groove 2121, and the rotation angle and swing range of the universal ball base 1 are increased.

[0043] The advantages of this embodiment are as follows: A certain amount of attraction force is generated between the ball head 11 and the ball receiver 21 by the magnetic attraction member 3, and the magnetic attraction member 3 attracts the ball head 11 to provide a magnetic attraction force for adsorption and fixation, so that when the limiting member 22 reduces the abutment locking force with the ball head 11, the magnetic attraction force plays the role of adsorption assistance and buffer damping, and can provide a certain support for the ball head 11, and avoid the ball head 11 from falling over immediately due to the gravity of itself or the external accessory connected to the first fixing part 4, thereby avoiding damage or breakage of the external accessory. In addition, when quick composition or shooting is desired, the ball head 11 is fixed by the magnetic attraction force of the magnetic attraction member 3 when the limiting member 22 is released, and a large change in the shooting angle of the camera is avoided, and the angle can be easily fine-tuned manually by fixing it by magnetic force, and the perfect composition or shooting effect can be obtained by fine-tuning the angle. Furthermore, the magnetic attraction force between the magnetic attraction member 3 and the ball head 11 does not gradually decrease due to wear over long periods of use, as occurs with the contact attenuation between a conventional rubber block and ball head 11.The magnetic attraction force between the magnetic attraction member 3 and ball head 11 of this embodiment remains stable for a long period of time, providing good reliability and stability.

[0044] Example 2 This embodiment is similar to the first embodiment except for the following points. In this embodiment, the first fixing part 4 is fixedly connected to the connection handle 12 and is used to attach a tripod, a support rod or a stabilizer externally, and the second fixing part 5 is connected to the limiting base 2 and is used to attach a camera externally. In use, the ball head 11 rotates in the ball receiver 21, the connection handle 12 of the ball head 11 faces downward, the first fixing part 4 connected to the connection handle 12 attaches a tripod, a support rod or a stabilizer externally, and the second fixing part 5 connected to the limiting base 2 is connected to the camera, and the limiting base 2 swings by adjusting the position and angle of the camera, and the limiting base 2 swings within a predetermined spatial range centered on the ball head 11. The adapter of the connection handle 12 and the limiting base 2 by the first fixing part 4 and the second fixing part 5 makes it possible to efficiently attach and detach the ball head and attach various external accessories, thereby making the magnetic attraction type ball head of this embodiment multifunctional.

[0045] The other structures and principles of this embodiment are the same as those of the first embodiment.

[0046] Example 3 This embodiment is similar to embodiment 1, except for the following. As shown in FIG. 4, the first fixing part 4 includes a fixing plate 41 fixed to the connection handle 12, an adjustment plate 42 movably abutting against the fixing plate 41, and a first limited rotation rod 43 whose one end passes through the adjustment plate 42 and is screwed to the fixing plate 41. The upper end surfaces of the fixing plate 41 and the adjustment plate 42 are formed with an inverted trapezoidal engagement groove 40 having a small opening and a large bottom, which is used to engage a camera quick release plate. The width of the inverted trapezoidal engagement groove 40 can be adjusted by moving the adjustment plate 42, so that it can be adapted to various sizes of quick release plates. In this embodiment, the first fixing part 4 connected to the connection handle 12 is preferably used to externally attach accessories such as a camera, and when used, the connection handle 12 faces upward. Thus, in this embodiment, it is easy to rotate and adjust the angle when used. 3 and 5, the second fixing part 5 includes a rotating base 51, one end of which is inserted into the ball receiver 21 and rotatably engaged with the lower end of the ball receiver 21, and a second limiting rotating rod 52, one end of which passes through the ball receiver 21 and movably abuts against the rotating base 51, the second limiting rotating rod 52 being screw-connected to the ball receiver 21, and a mounting screw hole 53 used for screwing to a tripod is provided at the bottom of the rotating base 51. A standard mounting bolt is provided at the mounting part for an external accessory such as a tripod. In this embodiment, after being fixed to the tripod by the rotating base 51, if it becomes necessary to adjust the shooting angle, the ball receiver 21 is rotated to rotate the structures such as the universal ball base 1, limit base 2, and first fixed part 4 fixed relatively to the ball receiver 21 relative to the rotating base 51, thereby enabling 360-degree adjustment of the angle around the axis of the ball receiver 21, and the second limit rotation rod 52 is abutted against the rotating base 51 by screwing it in, thereby limiting the relative rotation between the rotating base 51 and the ball receiver 21, which is a simple and efficient structure.

[0047] In this embodiment, the rotating base 51 is rotatably engaged with the cylindrical housing 212 , and the second limiting rotating rod 52 passes through the cylindrical housing 212 and movably abuts against a portion of the rotating base 51 that extends into the cylindrical housing 212 .

[0048] The other structures and principles of this embodiment are the same as those of the first embodiment.

[0049] Example 4 The tripod head includes a tripod and further includes the magnetic attraction type ball head described in the above embodiment, and the second fixed part 5 is removably screw-connected to the tripod. In addition, standard mounting bolts are provided at the mounting parts of external accessories such as tripods. In this embodiment, after being fixed to the tripod by the rotating base 51, if it becomes necessary to adjust the shooting angle, the ball receiver 21 is rotated to rotate the structures such as the universal ball base 1, limit base 2, and first fixed part 4 fixed relatively to the ball receiver 21 relative to the rotating base 51, thereby making it possible to adjust the angle 360 ​​degrees around the axis of the ball receiver 21. By screwing the second limiting rotation rod 52, the second limiting rotation rod 52 is abutted against the rotating base 51, limiting the relative rotation between the rotating base 51 and the ball receiver 21. This structure is simple and efficient.

[0050] Obviously, the above examples of the present invention are merely illustrative for clearly explaining the present invention, and do not limit the embodiments of the present invention. Those skilled in the art may make various other changes or modifications based on the above description. It is not necessary and impossible to comprehensively cover all the embodiments here. Modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention. [Explanation of symbols]

[0051] 1 Universal ball stand 11 Ball Head 12 Connection Handle 2. Restricted Base 21 Ball Receiver 211 Circular Base 2110 frustum hole 212 Cylindrical housing 2121 Relief groove 22 Restrictive Members 221 First clamp block 222 Second Clamp Block 223 Bidirectional screw 224 Adjustment lever 3. Magnetic attraction member 31 Arc-shaped magnetic attraction link 32 Circular magnetic attraction link 4 1st fixed part 40 Inverted trapezoidal locking groove 41 Fixed plate 42 Adjustment plate 43 First limiting rotating rod 5 Second fixed part 51 Rotating pedestal 52 Second limiting rotation rod 53 Mounting screw hole

Claims

1. A magnetic attraction type ball head, A universal ball base (1) including a ball head (11) and a connecting handle (12); a limiting base (2) including a ball receiver (21) for receiving the ball head (11) and a limiting member (22) that movably contacts the ball head (11) and can limit the rotation of the ball head (11) within the ball receiver (21); a magnetic attraction member (3) fixed in the ball receiver (21) and adapted to attract the ball head (11); A magnetic attraction type ball head, characterized in that it includes a first fixed part (4) and a second fixed part (5) which are used for removably connecting external accessories and are connected to the connection handle (12) and the limit base (2), respectively.

2. The magnetic attraction type ball head of claim 1, wherein the limiting member (22) includes a first clamp block (221) and a second clamp block (222) that are relatively movable and positioned within the ball receiver (21), and a bidirectional screw (223) whose one end passes through the ball receiver (21) and is screw-connected to both the first clamp block (221) and the second clamp block (222), and when the bidirectional screw (223) rotates, the spiral directions of the first clamp block (221) and the second clamp block (222) are opposite to each other, and the first clamp block (221) and the second clamp block (222) movably abut against the ball head (11) by the rotation of the bidirectional screw (223).

3. 3. The magnetic attraction type ball head according to claim 2, wherein the limiting member (22) further comprises an adjustment lever (224) provided at the other end of the bidirectional screw (223).

4. The magnetic attraction type ball head of claim 1, characterized in that the magnetic attraction member (3) includes an arc-shaped magnetic attraction link (31) and / or an annular magnetic attraction link (32) distributed around the outer periphery of the ball head (11), the arc-shaped magnetic attraction link (31) and the annular magnetic attraction link (32) are both composed of a plurality of magnetic blocks arranged in sequence, and the arc-shaped magnetic attraction link (31) and the annular magnetic attraction link (32) have a side facing the ball head (11) that conforms to the spherical curvature of the ball head (11).

5. The magnetic attraction type ball head of claim 2, characterized in that the ball receiver (21) includes an annular base (211) circumferentially disposed around the end of the ball head (11) and a cylindrical housing (212) circumferentially disposed around the outside of the annular base (211), one end of the bidirectional screw (223) passes through the cylindrical housing (212) and is screw-connected to the first clamp block (221) and the second clamp block (222), respectively, and the magnetic attraction member (3) is fitted into the annular base (211) and positioned between the cylindrical housing (212) and the ball head (11).

6. The magnetic attraction type ball head of claim 5, characterized in that a frustum hole (2110) with a gradually increasing diameter is opened at the bottom of the annular base (211), the first clamp block (221) and the second clamp block (222) move relatively within the outer diameter range of the bottom surface of the frustum hole (2110), and the outer periphery of the upper end surface of the first clamp block (221) and the second clamp block (222) is chamfered parallel to the inner slope of the frustum hole (2110).

7. The magnetic attraction type ball head according to claim 5, characterized in that at least one escape groove (2121) is opened at the end of the cylindrical housing (212), and the escape groove (2121) is located at the end of the connecting handle (12) extending from the cylindrical housing (212).

8. The magnetic attraction type ball head of claim 1, characterized in that the first fixed part (4) includes a fixed plate (41) fixed to the connecting handle (12), an adjustment plate (42) movably abutting the fixed plate (41), and a first limiting rotation rod (43) one end of which passes through the adjustment plate (42) and is screw-connected to the fixed plate (41), and an inverted trapezoidal engagement groove (40) with a small opening and a large bottom is formed on the upper end surfaces of the fixed plate (41) and the adjustment plate (42) for engaging a camera quick release plate.

9. The magnetic attraction type ball head of claim 1, characterized in that the second fixed part (5) includes a rotating base (51) having one end inserted into the ball receiver (21) and rotatably engaged with the lower end of the ball receiver (21), and a second limiting rotating rod (52) having one end passing through the ball receiver (21) and movably abutting against the rotating base (51), the second limiting rotating rod (52) being screw-connected to the ball receiver (21), and a mounting screw hole (53) used for screwing to a tripod is further drilled in the bottom of the rotating base (51).

10. A tripod head including a tripod, A tripod head further comprising the magnetic attraction type ball head according to any one of claims 1 to 9, wherein the second fixing part (5) is removably connected to the tripod by a screw.

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