Rotational dimension switchable spherical holder

Abstract

The application discloses a rotation dimension switchable spherical holder, which comprises a quick mounting plate base, a sphere, an outer surrounding shell and a damping rotation base plate, the outer surrounding shell is fixed on the damping rotation base plate, and the sphere with an eccentric horizontal shaft is wrapped by the outer surrounding shell and a square positioning pin corresponding to the outer shell can be advanced and retreated, so as to form a three-dimensional universal ball joint or a one-dimensional ball joint, the switching of the square positioning pin is matched with the horizontal damping rotation base plate, and the whole can be switched freely between two dimensions and three dimensions, so as to adapt to different shooting scene requirements, and the spherical holder can realize the space angle positioning of the holder stability and improve the dynamic balance performance.

Description

Technical Field

[0001] The present invention relates to the field of shooting auxiliary equipment, and in particular to a spherical head with switchable rotation dimensions. Background Art

[0002] The pan / tilt head is a supporting device for video cameras, still cameras and other recording equipment. During the shooting process, the recording equipment needs to be quickly installed and fixed.

[0003] Ball heads are one of the most common types of gimbals, widely used for connecting and orienting cameras and video cameras. However, most current ball heads rotate in three dimensions, making them unable to achieve stable spatial positioning control. For example, they cannot achieve stable control of changing the horizontal plane during dynamic shooting. Summary of the Invention

[0004] Technical problems solved

[0005] The spherical gimbal with switchable rotation dimensions of the present invention includes a quick-release plate seat, a sphere, an outer shell and a damping rotating chassis, so that the spherical gimbal can be freely switched between two-dimensional and three-dimensional rotation to adapt to the requirements of different shooting scenes. In addition, the spherical gimbal can achieve stable spatial angle positioning of the gimbal and improve dynamic balance performance.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a spherical gimbal with switchable rotation dimensions, the spherical gimbal with switchable rotation dimensions comprising a quick-release plate seat, a sphere, an outer enclosure shell and a damping rotating chassis, the outer enclosure shell being fixed on the damping rotating chassis, the outer enclosure shell wrapping the sphere to form a universal ball joint, the top of the sphere being connected to the quick-release plate seat through the ball diameter, a conical ring being provided under the sphere, the conical ring being provided with a shrinkage joint, the shrinkage joint being retracted or restored by a screw in combination with an internal thread, thereby achieving compression or relaxation of the sphere bushing, thereby achieving adjustment and locking of the sphere damping.

[0008] In one possible implementation, a horizontal axis is provided inside the sphere in the horizontal direction, and the axis of the horizontal axis passes through the center of the sphere. A positioning hole is provided at one end of the horizontal axis, which is concentric with the horizontal axis. A square positioning pin is provided on the inner side of the outer shell relative to the positioning hole. The square positioning pin is inserted into the positioning hole to limit the sphere to only rotate around the horizontal axis, while driving the outer shell to rotate synchronously along the longitudinal axis to achieve two-dimensional movement of the gimbal pitch and horizontal rotation.

[0009] In a possible implementation, the square positioning pin is driven in and out by a screw mechanism at a corresponding position on the shell, the screw mechanism comprising a shaft sleeve, a pin shaft, a bushing with a ring groove, and a screw knob, the shaft sleeve having a horizontal slot for the pin shaft to pass through, the shaft sleeve being sleeved on the square positioning pin, and the pin shaft passing through the square positioning pin, the horizontal slot, and the ring groove on the bushing respectively, and being connected to the inside of the screw knob at both ends, so as to drive the pin shaft to move along the ring groove by rotating the screw knob to achieve in and out, and in turn drive the square positioning pin to move in and out.

[0010] In a possible implementation, the rotation-dimension-switchable spherical holder further comprises a spherical bushing, the outer surrounding shell wrapping the spherical bushing, and the spherical bushing wrapping the sphere.

[0011] In a possible implementation, the outer surrounding shell is provided with a first screw knob on the other side relative to the square positioning pin, and the damping adjustment of the movement around the horizontal shaft is achieved by pressing or releasing the horizontal shaft.

[0012] In a possible implementation, the middle part of the horizontal shaft is provided with an eccentric crankshaft, the eccentric crankshaft supporting a piston, the piston being sleeved with a compression spring, and the piston being arranged in a central hole coaxial with the longitudinal axis of the sphere.

[0013] In a possible implementation, the horizontal shaft is composed of a horizontal shaft body and a sliding key, the horizontal shaft body being inserted into the sphere at one end, and the sliding key being inserted from the other end opposite to the sphere, and being fixed by the cooperation of the inner recess groove at one end of the horizontal shaft body and the protrusion on the sliding key, and further being limited from being separated by a connecting bolt.

[0014] In a possible implementation, the outer surrounding shell is provided with a U-shaped notch.

[0015] In a possible implementation, the damping rotation base disc comprises a fixed seat and a rotating central shaft, and a damping oil groove is arranged between the fixed seat and the rotating central shaft, and the damping oil groove is filled with damping oil.

[0016] In a possible implementation, the damping rotation base disc further comprises a damping sliding block and a second screw knob, the second screw knob being connected to the damping sliding block through the fixed seat, so as to adjust the gap between the damping sliding block and the rotating central shaft by the second screw knob, and realize the adjustment of the rotation damping size and the fixation of the damping rotation base disc.

[0017] In a possible implementation, a gasket is further arranged between the rotating central shaft and the fixed seat.

[0018] In a possible implementation, the quick mounting base seat comprises a base, a clamping block, an elastic pin and a third screw knob, the base is provided with a dovetail groove, the clamping block is movably mounted on one side of the base through the third screw knob, the elastic pin is arranged in the base, and a push-lock head of the elastic pin abuts against the inner side of the clamping block to apply elastic force, and the third screw knob is locked through thread cooperation with the base provided with the dovetail groove.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the application provides a spherical holder with switchable rotation dimensions, which has the following beneficial effects:

[0021] The spherical holder with switchable rotation dimensions comprises a quick mounting base seat, a sphere, an outer surrounding shell and a damping rotation base plate, the outer surrounding shell is fixed on the damping rotation base plate and wraps the sphere to form an outward spherical joint, the sphere top end is connected with the quick mounting base seat through a sphere diameter, the damping rotation base plate provides two-dimensional rotation dimensions for the spherical holder, and the spherical joint provides three-dimensional rotation dimensions for the spherical holder, so that the whole can be freely switched between two-dimensional and three-dimensional to adapt to different shooting scene requirements, and the spherical holder can realize spatial angle positioning of the holder stability and improve dynamic balance performance. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0023] Figure 1 is a whole structure schematic diagram of the spherical holder with switchable rotation dimensions provided by the embodiment of the application;

[0024] Figure 2 is a first structure schematic diagram of the spherical holder with switchable rotation dimensions in a disassembled state provided by the embodiment of the application;

[0025] Figure 3 is a second structure schematic diagram of the spherical holder with switchable rotation dimensions in a disassembled state provided by the embodiment of the application;

[0026] Figure 4 is a first section view of a part structure of the spherical holder with switchable rotation dimensions provided by the embodiment of the application;

[0027] Figure 5 is a second section view of a part structure of the spherical holder with switchable rotation dimensions provided by the embodiment of the application;

[0028] Figure 6 is the structural schematic diagram of the disassembled state of the damping rotary chassis of the embodiment of the present application;

[0029] Figure 7 is the structural schematic diagram of the disassembled state of the ball of the embodiment of the present application;

[0030] Figure 8 is the first structural schematic diagram of the disassembled state of the horizontal shaft of the embodiment of the present application;

[0031] Figure 9 is the second structural schematic diagram of the disassembled state of the horizontal shaft of the embodiment of the present application;

[0032] Figure 10 is the structural schematic diagram of the disassembled state of the screw mechanism and the square positioning pin of the embodiment of the present application.

[0033] Reference signs:

[0034] 1, quick mounting plate base; 2, ball; 3, outer surrounding shell; 4, damping rotary chassis; 5, conical ring; 6, shrink joint; 7, screw rod; 8, horizontal shaft; 9, positioning hole; 10, square positioning pin; 11, ball bushing; 12, first screw knob; 13, eccentric crankshaft; 14, piston; 15, compression spring; 16, center hole; 17, U-shaped notch; 18, screw mechanism; 181, shaft sleeve; 182, pin shaft; 183, bushing with ring groove; 184, screw knob; 185, ring groove; 186, horizontal groove; 187, shaft sleeve cover; 81, horizontal shaft body; 82, sliding key; 83, inner recess; 84, protrusion; 85, connecting bolt; 86, bearing sleeve; 41, fixed seat; 42, rotary central shaft; 43, damping sliding block; 44, second screw knob; 45, gasket; 101, base; 102, clamping block; 103, elastic pin; 104, third screw knob; 105, dovetail groove. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0036] Please refer to Figures 1-7, respectively are structural schematic diagram of the rotating dimension switchable spherical holder and its assembly of the present application. Among them, according to the rotating dimension switchable spherical holder of the present application, including quick mounting plate seat 1, sphere 2, outer surrounding shell 3 and damping rotation base 4, outer surrounding shell 3 is fixed on damping rotation base 4, outer surrounding shell 3 wraps sphere 2 to form universal ball joint, sphere top end is connected quick mounting plate seat 1 through ball diameter, sphere lower side is equipped with conical ring 5, conical ring 5 is equipped with shrinkage joint 6, the inside shrinkage or recovery of shrinkage joint 6 is realized through screw rod 7 cooperation inner thread, so as to realize the compression or relaxation of sphere bushing, so as to realize the adjustment and locking of sphere damping.

[0037] Among them, the surrounding shell is fixed on the damping rotation base, so as to provide the spherical holder with damping effect horizontal rotation around the longitudinal axis.

[0038] Through the design of conical ring, the inside shrinkage or recovery of conical ring shrinkage joint is adjusted by screw rod cooperation inner thread, so as to press sphere upward based on inclined plane effect when shrinkage joint is shrunk, so as to realize solid damping adjustment and limit sphere movement in three dimensions, realize quick positioning. Among them, in a possible implementation mode, sphere inside horizontal direction is equipped with horizontal shaft 8, horizontal shaft 8 axis passes through ball center, positioning hole 9 is arranged at one end of horizontal shaft 8, and square positioning pin 10 is arranged on the inner side of outer surrounding shell 3 relative to the position of positioning hole 9, square positioning pin 10 is inserted into positioning hole 9 to limit sphere rotation around horizontal shaft, at the same time, drive outer surrounding shell to rotate along longitudinal axis synchronously, so as to realize two-dimensional movement of holder pitching and horizontal rotation.

[0039] In the horizontal direction inside the sphere, an eccentric horizontal shaft is provided, the axis of the horizontal shaft passes through the center of the sphere, and a positioning hole is provided at one end of the horizontal shaft, which is concentric with the axis of the horizontal shaft. When the square positioning pin on the outer surrounding shell is deeply inserted into the positioning hole, the sphere can only rotate around the horizontal shaft (first dimension) or rotate around the longitudinal axis based on the damping rotation base (second dimension). That is, the movement of the holder in two dimensions, i.e., pitching and horizontal rotation, is achieved.

[0040] Among them, please see Figures 8-9 The horizontal shaft 8 of the present application is a split design, consisting of a horizontal shaft body 81 and a sliding key 82. The horizontal shaft body 81 is inserted into the sphere at one end, and the sliding key 82 is inserted into the sphere at the opposite end. The horizontal shaft body 81 is fixed to the sliding key 82 through the cooperation of the inner groove 83 at one end of the horizontal shaft body 81 and the protrusion 84 on the sliding key 82, and further limited by the connecting bolt 85 to prevent the sliding key 82 from coming off the horizontal shaft body 81. There is a gap between the sliding key 82 and the horizontal shaft body 81.

[0041] In addition, a bearing sleeve 86 is arranged between the sliding key 82 and the horizontal shaft body 81, and a sealing rubber ring (not shown) is arranged between the bearing sleeve 86 and the sliding key 81. The sliding key 82 is connected by a connecting bolt and can move inward relative to the horizontal shaft body 81 under stress, so as to press the gap of the bearing sleeve and realize damping adjustment.

[0042] In a specific implementation, the square positioning pin is driven to advance and retreat by a screw mechanism at a corresponding position on the shell. For details, see Figure 10 The screw mechanism of the present application comprises a shaft sleeve 181, a pin shaft 182, a bushing 183 with a ring groove, and a screw knob 184. The shaft sleeve 181 has a horizontal groove 186 for the pin shaft 182 to pass through. The shaft sleeve 181 is sleeved on the square positioning pin 10, and the pin shaft 182 passes through the square positioning pin 10, the horizontal groove 186, and the ring groove 185 of the bushing at both ends, respectively, and is connected to the inside of the screw knob 184 at both ends, so as to drive the pin shaft 182 to move along the ring groove 185 to advance and retreat by rotating the screw knob 184, thereby driving the square positioning pin 10 to advance and retreat.

[0043] Further, in order to make the product appearance beautiful, a shaft sleeve cover 187 is further arranged on the outer end of the shaft sleeve 181.

[0044] In a possible implementation, the other side of the outer enclosing shell 3 relative to the square positioning pin 10 is provided with a first screw knob 12. By the first screw knob 12, the end of the horizontal shaft 8 is pressed, so that the two ends of the horizontal shaft move inward to press the bearing ring and increase the rotation resistance, thereby realizing adjustment of the rotation damping of the horizontal shaft.

[0045] In a possible implementation, the rotation dimension switchable spherical holder of the present application further comprises a spherical bushing 11, the outer enclosing shell 3 wraps the spherical bushing 11, and the spherical bushing 11 wraps the sphere 2.

[0046] The spherical bushing is arranged to reduce direct friction loss between the sphere and the outer enclosing shell, increase the rotation flexibility of the sphere, and play a self-lubricating and buffering effect during rotation. Further, the spherical bushing is preferably a flexible wear-resistant spherical bushing. When the square positioning pin is withdrawn, the sphere can rotate freely in three dimensions without being constrained by the sphere. The flexible bushing effectively avoids collision and friction between the sphere and the outer enclosing shell, and plays a rotation buffering effect. During the process of limiting and constraining the sphere, the flexible bushing greatly reduces the damage to the sphere.

[0047] In this implementation, the conical ring is arranged below the lower conical surface of the spherical bushing. The screw is matched with the internal thread to realize the inward contraction or recovery of the contraction joint. When the contraction joint is contracted, the inclined surface effect pushes the bushing to move upward to press the sphere, thereby limiting the movement of the sphere and realizing the rapid positioning of the sphere. In this case, the sphere is limited in the outer enclosing shell and can only rotate as a whole based on the damping rotating disc.

[0048] In one possible implementation, the outer surrounding shell is provided with a U-shaped notch 17. Through the U-shaped notch, the spherical head can rotate to an angle of ±90 degrees in the pitch angle.

[0049] In one possible implementation, the middle part of the horizontal shaft is provided with an eccentric crankshaft 13, which supports a piston 14. The piston 14 is sleeved with a compression spring 15, and is arranged in a central hole 16 coaxial with the longitudinal axis of the sphere 2.

[0050] When the sphere rotates around the horizontal shaft, the eccentric crankshaft rotates relative to the sphere, pushing the piston to move upward along the central hole, thereby compressing the compression spring and generating a reverse torque, thereby forming a dynamic balance effect of the spherical head and improving the dynamic balance performance of the spherical head during rotation.

[0051] It should be noted that the conventional damping rotation structure in the prior art can be applied to the present application as long as it can provide a damping rotation effect. In order to more clearly express the design idea of the present application, the present application further provides a specific damping rotation chassis structure, which is used as an example to explain the principle of the damping rotation chassis, but is not limited thereto.

[0052] In one possible implementation, the damping rotation chassis 4 includes a fixed seat 41 and a rotating shaft 42. A damping oil groove is arranged between the fixed seat 41 and the rotating shaft 42, and the damping oil groove is filled with damping oil. By means of the damping oil, the damping rotation chassis is provided with fluid damping. When the spherical head rotates around the longitudinal axis based on the damping rotation chassis, the damping oil provides resistance, effectively plays a buffering role, and achieves a slow and stable rotation effect.

[0053] Further, the damping rotation chassis further includes a damping slider 43 and a second screw knob 44. The second screw knob 44 penetrates the fixed seat 41 and is connected with the damping slider 43, so as to adjust the gap between the damping slider 43 and the rotating shaft 42 through the second screw knob 44, realize the adjustment of the rotation damping and the fixation of the damping rotation chassis.

[0054] When the second screw knob pushes the damping slider inward, the gap between the damping slider and the rotating shaft becomes smaller, the resistance increases, and thus the damping effect in the rotation process is increased. If necessary, the damping slider is tightly pressed against the rotating shaft, so as to completely prevent the rotation of the rotating shaft and lock the horizontal rotation of the spherical head around the longitudinal axis based on the damping rotation chassis. In this state, the spherical head is switched to the free rotation of the sphere in each dimension relative to the outer surrounding shell.

[0055] In a possible implementation, a gasket 45 is arranged between the rotating central shaft 42 and the fixed seat 41. The gasket can improve the combination between the rotating central shaft and the fixed seat, and further avoid friction loss between the fixed seat and the rotating central shaft, thereby prolonging the service life of the damping rotating base.

[0056] In addition, it should be noted that the quick mounting plate base in the present application is mainly used for connecting camera, video camera and other recording equipment. The specific structure of the quick mounting plate base is not limited in the present application. The conventional structure of the quick mounting plate base can be connected with the ball without affecting the implementation of the specific effect of the present application. However, in order to further illustrate the design concept of the present application, a specific structure of the quick mounting plate base is provided below, and the action principle of the quick mounting plate base is illustrated by taking this as an example, but it is not limited thereto.

[0057] In a possible implementation, please refer to Figures 2-3 The quick mounting plate base includes a base 101, a clamping block 102, a spring pin 103 and a third screw knob 104. The base 101 is provided with a dovetail groove 105. The clamping block 102 is movably installed on one side of the base 101 through the third screw knob 104. The spring pin 103 is arranged in the base 101, and the push-lock head of the spring pin 103 abuts against the inner side of the clamping block 102 to exert a spring force. The third screw knob 104 passes through the clamping block 102 and is locked in the dovetail groove of the base 101 through the internal thread.

[0058] The clamping block is installed on one side of the base through the third screw knob. When the third screw knob is unscrewed, the clamping block is released. The quick mounting plate is placed in the dovetail groove of the base, and the third screw knob is further tightened to lock the quick mounting plate. The spring pin can exert a spring force on the clamping block to automatically release the clamping block when the third screw knob is unscrewed.

[0059] In the above detailed description of the rotating dimension switchable spherical holder according to the present application, it can be understood that the rotating dimension switchable spherical holder includes a quick mounting plate base, a ball, an outer enclosing shell and a damping rotating base. The outer enclosing shell is fixed on the damping rotating base and wraps the ball with an eccentric horizontal shaft. The outer shell is provided with a square positioning pin that can be advanced and retracted, so as to form a universal ball joint or a one-dimensional ball joint. Through the switching of the square positioning pin and the cooperation with the horizontal damping rotating base, the whole can be switched freely between two dimensions and three dimensions to adapt to different shooting scene requirements. In addition, the spherical holder can realize the spatial angle positioning of the holder stability, and improve the dynamic balance performance.

[0060] In addition, a horizontal shaft is arranged inside the sphere, and the rotation of the sphere around the vertical shaft is limited by the cooperation of the square positioning pin and the positioning hole. Moreover, the sphere can be quickly positioned by the recovery of the shrink joint through the arrangement of the conical ring. Therefore, based on the ball joint structure of the application, the sphere can freely rotate in three dimensions of the ball-shaped holder, and can selectively limit the rotation of the sphere in a certain dimension according to different scenes.

[0061] It should be noted that the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0062] Although embodiments of the application have been shown and described, it is to be understood that various modifications, substitutions, replacements, and variations can be made to these embodiments without departing from the principles and spirit of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A spherical pan / tilt head with switchable rotation dimensions, characterized in that: The spherical head with switchable rotation dimension includes a quick-release plate seat, a sphere, an outer enclosure shell and a damping rotating chassis. The outer enclosure shell is fixed on the damping rotating chassis, and the outer enclosure shell wraps the sphere to form a universal ball joint. The top of the sphere is connected to the quick-release plate seat through the ball diameter. A conical ring is provided under the sphere, and the conical ring is provided with a contraction seam. The contraction seam is retracted or restored by the screw and the internal thread, thereby compressing or relaxing the sphere bushing, thereby adjusting and locking the sphere damping. The sphere A horizontal axis is provided in the internal horizontal direction, and the axis line of the horizontal axis passes through the center of the sphere. A positioning hole is provided at one end of the horizontal axis, which is concentric with the horizontal axis. A square positioning pin is provided on the inner side of the outer shell relative to the positioning hole. The square positioning pin is inserted into the positioning hole to limit the sphere to only rotate around the horizontal axis, and at the same time drives the outer shell to rotate synchronously along the longitudinal axis. An eccentric crankshaft is provided in the middle of the horizontal axis, and a piston is supported on the eccentric crankshaft. A compression spring is provided on the piston, and the piston is placed in a center hole coaxial with the longitudinal axis of the sphere.

2. The spherical head with switchable rotation dimensions according to claim 1, characterized in that: The square positioning pin is driven by a spiral mechanism at a corresponding position on the outer shell to move forward and backward. The spiral mechanism includes a sleeve, a pin, a bushing with an annular groove and a spiral button. The sleeve is provided with a transverse groove for the pin to pass through. The sleeve is sleeved on the square positioning pin, and the pin passes through the square positioning pin, the transverse groove and the annular groove on the bushing respectively. Both ends are connected to the inner side of the spiral button, so that the rotation of the spiral button drives the pin to move along the annular groove to move forward and backward, thereby driving the square positioning pin to move forward and backward.

3. The spherical head with switchable rotation dimensions according to claim 1, characterized in that: The spherical gimbal with switchable rotation dimensions further includes a spherical bushing, the outer enclosure wraps the spherical bushing, and the spherical bushing wraps the sphere.

4. The spherical head with switchable rotation dimensions according to claim 1, characterized in that: A first screw knob is provided on the other side of the outer enclosure relative to the square positioning pin.

5. The spherical head with switchable rotation dimensions according to claim 1, characterized in that: The transverse axis is composed of a transverse axis body and a sliding key. The transverse axis body is inserted into the sphere through one end, and the sliding key is inserted from the other end opposite to the sphere. The inner groove at one end of the transverse axis body cooperates with the protrusion on the sliding key to fix it, and the sliding key is further restricted from disengaging by a connecting bolt.

6. The spherical head with switchable rotation dimensions according to claim 1, characterized in that: The damping rotating chassis includes a fixing seat and a rotating central axis. A damping oil groove is provided between the fixing seat and the rotating central axis, and the damping oil groove is filled with damping oil.

7. The spherical head with switchable rotation dimensions according to claim 6, characterized in that: The damping rotating chassis also includes a damping slider and a second screw knob, and the second screw knob is connected to the damping slider through the fixing seat, so that the gap between the damping slider and the rotating central axis can be adjusted by the second screw knob to achieve the adjustment of the rotational damping size and the fixation of the damping rotating chassis.

8. The spherical head with switchable rotation dimensions according to claim 7, characterized in that: A gasket is further provided between the rotating central axis and the fixing seat.

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