CN218762588U - Rotating shaft structure and holder thereof - Google Patents

Abstract

The embodiment of the application relates to the technical field of electronic equipment structures, and discloses a rotating shaft structure and a holder thereof. This pivot structure includes: a first member having a rotational shaft extending in an axial direction; the second component is provided with a shaft hole; the rotating shaft passes through the shaft hole, and at least one part of the rotating shaft is accommodated in the second component; the rotation drive mechanism is used for: generating a rotational acting force to make the rotating shaft have a tendency to rotate along a first rotating direction; the rotation limiting mechanism is located on one side of the rotating shaft. When the second member rotates in the first rotation direction relative to the first member to a first target angle, the rotation limiting mechanism limits the rotating shaft to continue rotating in the first rotation direction, so that the rotating shaft having a tendency to rotate in the first rotation direction is inclined relative to the shaft hole. Through the mutual matching of the rotation driving mechanism and the rotation limiting mechanism, when the rotating shaft is positioned at the first target angle, unbalanced stress exists on the rotating shaft with the rotation trend, so that the rotating shaft is inclined relative to the shaft hole, and the effect of eliminating radial clearance is achieved.

Description

Rotating shaft structure and holder thereof

Technical Field

The application relates to the technical field of electronic equipment structures, in particular to a rotating shaft structure and a holder thereof.

Background

With the development of science and technology, the progress of society, and the development of social media, many auxiliary photographing devices are widely used to improve the photographing quality and enrich the photographing modes. The pan-tilt is one of the widely used auxiliary photographic devices.

The pan/tilt head usually includes a plurality of relatively rotatable shaft arms to achieve functions such as adjusting a photographing angle and keeping photographing stable. The two adjacent shaft arms are rotatably connected through a rotating shaft or a similar structure. However, the conventional pivot structure has a certain radial clearance, which causes additional swing between the two pivot arms, thereby adversely affecting the pan/tilt head control.

Disclosure of Invention

Based on this, it is necessary to provide a rotating shaft structure and a pan/tilt head thereof for limiting extra swing in order to solve the problem of radial clearance in the conventional rotating shaft structure.

The embodiment of the application provides a rotating shaft structure. This pivot structure includes: a first member; the first component is provided with a rotating shaft extending along the axial direction; a second component; the second part is provided with a shaft hole; the rotating shaft penetrates through the shaft hole, and at least one part of the rotating shaft is accommodated in the second part; a rotation driving mechanism; the rotation driving mechanism is used for: generating a rotational acting force to make the rotating shaft have a tendency to rotate along a first rotating direction; a rotation limiting mechanism; the rotation limiting mechanism is positioned on one side of the rotating shaft; when the second component rotates relative to the first component to a first target angle along the first rotating direction, the rotation limiting mechanism limits the rotating shaft to continue rotating along the first rotating direction, so that the rotating shaft with the rotating trend along the first rotating direction inclines relative to the shaft hole.

In some embodiments, the rotational drive mechanism comprises a resilient component; the elastic assembly is positioned in the second part and used for generating axial force along the axial direction of the rotating shaft so as to enable the first part and the second part to have the tendency of approaching to each other; a first guide member; the first guide member is provided on the first member; a second guide member; the second guide member is provided on the second member; when the second component rotates relative to the first component along the first rotation direction to a first target angle, at least one part of inclined contact surface is arranged between the first guide component and the second guide component, and the inclined contact surface is not perpendicular to the axial direction, so that at least one part of the axial force is converted into the rotation acting force.

In some embodiments, the resilient assembly comprises: a compression spring; the compression spring is sleeved on the rotating shaft; a first gasket; the first gasket is disposed inside the second member; the first gasket is provided with a through hole which is aligned with the shaft hole so as to allow the rotating shaft to pass through; a second gasket; the second gasket is fixedly connected with the rotating shaft; the two ends of the compression spring are respectively connected with the first gasket and the second gasket, and the compression spring is used for applying axial force for driving the tail end of the rotating shaft to be far away from the shaft hole to the rotating shaft through the second gasket so as to limit the rotating shaft to be separated from the second component.

In some embodiments, the first guide member is a limiting groove and the second guide member is a limiting protrusion; or the first guide part is a limiting protrusion, and the second guide part is a limiting groove; a plurality of limiting bulges and limiting grooves are arranged around the circumferential direction of the rotating shaft; the limiting groove is provided with an inclined side wall, and the limiting protrusion is provided with an inclined surface; when the second component rotates to a first target angle along the first rotating direction relative to the first component, the limiting convex part is accommodated in the limiting concave part, and the inclined side wall is connected with the inclined surface to form the inclined contact surface; under the action of the axial force, the limiting protrusion and the limiting recess have a relative sliding trend so as to generate the rotating acting force.

In some embodiments, when the second component rotates relative to the first component along the second rotation direction to a second target angle, the limiting protrusion is completely accommodated in the limiting recess, and the relative sliding tendency does not exist; wherein the second rotational direction is opposite the first rotational direction.

In some embodiments, the rotation limiting mechanism comprises: a first abutting portion provided on the second member; the second abutting part is arranged at the tail end of the rotating shaft; when the second component rotates to a first target angle relative to the first component along the first rotation direction, the first abutting part and the second abutting part abut against each other to limit the rotating shaft to continue rotating along the first rotation direction.

In some embodiments, the second component comprises: a component housing; an accommodating space is formed in the component shell, and a shaft hole penetrating through the component shell is formed in the component shell; a battery holder; the battery bracket is fixed in the component shell, and a battery bin for accommodating a battery is formed in the accommodating space; wherein the battery bracket has a first bracket end for interfacing with a battery and a second bracket end facing away from the battery; the first abutting portion is provided at the second bracket distal end.

In some embodiments, the first component comprises: a rotating shaft seat; the rotating shaft extends outwards from the rotating shaft seat by a preset length; a connecting portion; the connecting part extends outwards from the side wall of the rotating shaft seat; the rotating shaft is positioned in the connecting part, and an annular space is formed between the rotating shaft and the connecting part; a limiting ring; the limiting ring is sleeved on the rotating shaft and is contained and fixed in the annular space; wherein the first guide member is provided on the retainer ring, and the second guide member is provided on the member case.

The embodiment of the application also provides a cloud platform. The holder has a folding state and an unfolding state and comprises the rotating shaft structure; when the holder is in an unfolding state, the second part of the rotating shaft structure rotates to a first target angle relative to the first part; when the holder is in a folded state, the second part of the rotating shaft structure rotates to a second target angle relative to the first part.

In some embodiments, the head further comprises: a microswitch; the microswitch is housed within the second component; the micro switch is used for switching between a connection state and a disconnection state so as to enable the holder to be started or closed; a switch triggering device; the switch triggering device is accommodated in the second component and is used for triggering the micro switch to switch between the on state and the off state; when the second component rotates to the first target angle, the switch trigger device triggers the microswitch to be switched into the on state; when the second component departs from the first target angle and rotates to the second target angle, the switch trigger device triggers the microswitch to be switched to the off state.

The embodiment of the application provides a pivot structure and beneficial effect of cloud platform thereof is: through the mutual matching of the rotation driving mechanism and the rotation limiting mechanism, when the two parts of the rotating shaft structure are positioned at the first target angle, the rotating shaft with the rotation trend has unbalanced stress, so that the rotating shaft inclines relative to the shaft hole, the radial clearance of the rotating shaft is eliminated, and the effect of ensuring that the first part and the second part forming the rotating shaft structure cannot swing is achieved.

Drawings

One or more embodiments are illustrated in corresponding drawings which are not intended to be limiting, in which elements having the same reference number designation may be referred to as similar elements throughout the drawings, unless otherwise specified, and in which the drawings are not to scale.

FIG. 1 is a schematic structural diagram of a rotating shaft structure provided in an embodiment of the present application, illustrating a situation inside a second component;

FIG. 2 is a schematic view of the shaft provided by the embodiment of the present application being inclined with respect to the shaft hole;

FIG. 3 is an exploded view of the hinge structure provided in the embodiments of the present application, showing a first member and a resilient assembly;

FIG. 4 is a schematic view of a second component provided by an embodiment of the present application;

FIG. 5 is a schematic view of a stop collar provided in accordance with an embodiment of the present application;

FIG. 6 is a schematic view of a rotation limiting mechanism provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a second component provided by an embodiment of the present application, illustrating the location of a battery holder;

fig. 8 is a schematic view of a tripod head provided in the embodiment of the present application, showing the tripod head in a folded state;

fig. 9 is a schematic view of a tripod head provided in the embodiment of the present application, showing a state in which the tripod head is in an unfolded state;

FIG. 10 is a cross-sectional view of a spindle structure provided in an embodiment of the present application, illustrating a second member rotated to a first target angle relative to a first member;

fig. 11 is a partial structural schematic view of the tripod head provided by the embodiment of the present application, after hiding a part of the housing of the second component, showing the tripod head in a deployed state;

fig. 12 is a partial structural schematic view of the tripod head with the second component part of the housing hidden according to the embodiment of the present application, showing the tripod head in a folded state;

fig. 13 is a schematic structural diagram of a micro switch and a switch triggering device provided in an embodiment of the present application, which illustrates a situation when the second member is rotated to a second target angle relative to the first member.

Description of reference numerals:

110. a first member; 111. a rotating shaft; 112. a rotating shaft seat; 113. a connecting portion; 114. a limiting ring;

120. a second component; 121. a shaft hole; 122. a component housing; 123. a battery holder;

130. a rotation driving mechanism; 131. an elastic component; 132. a first guide member; 133. a second guide member;

1311. a compression spring; 1312. a first gasket; 1312. a second gasket; 1314. a through hole;

140. a rotation limiting mechanism; 141. a first abutting portion; 142. a second abutting portion;

210. a microswitch; 211. a transmission member; 220. and a switch trigger device.

Detailed Description

The present application is described in detail below with reference to specific embodiments, it should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present application.

It should be noted that unless otherwise explicitly stated or limited, the terms "central," "longitudinal," "lateral," "upper," "lower," "vertical," "horizontal," "inner," "outer," and the like as used herein refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more; "and/or" includes any and all combinations of one or more of the associated listed items. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

The "rotation shaft structure" is a common connection mode for realizing the movement between two components so that the two components can rotate relatively. The torque-proof device is mainly realized by matching a rotating shaft which bears bending moment, torque and radial torque in the rotating process and a shaft hole which bears the rotating shaft. Generally, it is necessary to set a proper size so that a certain radial clearance exists between the shaft hole and the rotating shaft to facilitate the rotation of the rotating shaft in the shaft hole and reduce the rotation resistance of the rotating shaft. However, the radial play between the shaft bore and the shaft can lead to negative effects, such as play between the two components. The rotating shaft structure provided by the embodiment of the application can effectively reduce the negative influence caused by the radial clearance through the specific structure arrangement.

Fig. 1 is a schematic structural diagram of a rotating shaft structure provided in an embodiment of the present application. As shown in fig. 1, the spindle structure includes: a first member 110, a second member 120, a rotational drive mechanism 130, and a rotational limit mechanism 140.

Wherein, the first part 110 is provided with a rotating shaft 111. The rotation shaft 111 may extend a predetermined distance in the axial direction. Suitably, the second member 120 is provided with a shaft hole 121 for the rotating shaft 111 to pass through. The shaft 111 may pass through the shaft hole 121 and have at least a portion received inside the second member 120. In the present embodiment, for simplicity of description, the direction in which the rotating shaft extends may be referred to as "axial direction", and the direction in which the rotating shaft rotates about the axial direction may be referred to as "circumferential direction"

The shaft 111 can rotate in the shaft hole 121, thereby achieving the rotational connection between the first member 110 and the second member 120. Assuming the first component as a frame of reference, it can be considered that the second component 120 can rotate about the axial direction of the rotation shaft 111 with respect to the first component 110. Of course, the rotation of the first and second parts is relative. For example, a shaft disposed in a first component may also be described as rotating relative to a second component having a shaft aperture when the second component is referenced. In the present embodiment, the relative movement between the two components is described using the terms rotation of the shaft or rotation of the second component relative to the first component.

The rotational drive mechanism 130 is a member for generating rotational force such that the rotational shaft has a tendency to rotate in the first rotational direction. The "rotational force" refers to a force in a tangential direction of the circumferential direction of the rotating shaft. In other embodiments, it may also be referred to as a "turning moment".

The rotation restricting mechanism 140 is a member for restricting rotation of the rotating shaft. In the present embodiment, the rotation limiting member 140 is disposed on one side of the rotation shaft, and can limit the relative rotation between the first member and the second member to continue at a specific rotation angle. In other words, the rotation restricting mechanism 140 exerts a resistance force that prevents the rotation of the rotating shaft from continuing at one point or region in the circumferential direction of the rotating shaft, which is unbalanced in the circumferential direction, significantly larger than the other regions.

During the actual rotation, when the second member 120 rotates in the first rotation direction to the first target angle relative to the first member 110, the rotation limiting mechanism 140 can limit the rotation shaft from continuing to rotate in the first rotation direction. At the same time, the rotational force generated by the shaft drive mechanism 130 causes the shaft to continue to rotate in the first rotational direction.

As shown in fig. 2, since the rotation limiting mechanism 140 is located at one side of the rotation shaft, the resistance force applied to the rotation shaft is asymmetrical. Therefore, the rotating shaft 111 having a tendency to rotate in the first rotating direction generates a moment F corresponding to the inclination with respect to the shaft hole 121, thereby achieving an effect of eliminating the radial gap.

The above-mentioned "first target angle" refers to a relative angle formed between the first member 110 and the second member 120. The angle value can be a specific angle value, or a specific angle interval, and the angle value can be specifically set according to the requirements of actual conditions, and depends on the design of a rotation limiting mechanism. Similarly, the first rotation direction refers to a specific rotation direction, which may be a counterclockwise rotation or a clockwise rotation, and is not limited herein.

It should be noted that the first member and the second member are only used to indicate two parts connected by a rotating shaft and capable of relatively rotating, and are not used to limit the specific form or structure of the members. The first part 110 and the second part 120 may be implemented according to the actual application scenario of the hinge structure.

The pivot structure that this application embodiment provided can be when first target angle through rotating mutually supporting between actuating mechanism and the rotation limiting mechanism, thereby the drive shaft takes place to incline for the shaft hole and eliminates radial clearance.

In some embodiments, with continued reference to fig. 1, the rotational driving mechanism 130 includes: an elastic member 131, a first guide member 132, and a second guide member 133.

Wherein the elastic member 131 is located inside the second part for generating an axial force in the axial direction of the rotation shaft. The application of the axial force serves to cause the first and second components to have a tendency to approach one another. In other words, the axial force is a force that brings the first member and the second member into proximity with each other.

The first guide member 132 and the second guide member 133 are structures provided on the first member 110 and the second member 120, respectively. The two guide members have a suitable structural design therebetween to enable an inclined contact surface to be formed therebetween when the second member is rotated relative to the first member in the first rotational direction to a first target angle. The inclined contact surface is arranged non-perpendicular to the axial direction, thereby enabling at least a part of the axial force to be converted into a rotational force, i.e. a force in a tangential direction in the circumferential direction of the shaft is generated.

Specifically, as shown in fig. 3, the elastic member 131 may include: a compression spring 1311, a first shim 1312 and a second shim 1313.

Here, the compression spring 1311 is a spring in a compressed state. Which can be sleeved on the part of the rotating shaft extending into the second part. It may in particular be a wave spring, a helical spring or another suitable type of elastic element. The first gasket 1312 may abut against an inner wall of the second member. The first spacer 1312 has a through hole 1314 formed therein and aligned with the shaft hole 121, thereby allowing the shaft 111 to pass therethrough. Second pad 1313 is fixedly coupled to shaft 111. Which may be fixedly connected to the shaft 111 in any manner.

In actual use, compression spring 1311 is attached at each end to first pad 1312 and second pad 1313, respectively. Thus, the compression spring 1311, which tends to return to its original length, applies an axial force to the shaft 111 via the second spacer 1313 to urge the end of the shaft 111 away from the shaft hole 121, thereby driving the first member 110 against the second member 120 to prevent the shaft 111 from being separated from the second member.

In some embodiments, with continued reference to fig. 1, the first guide member is a limiting recess 132 and the second guide member is a limiting protrusion 133.

The limiting protrusions 133 and the limiting grooves 132 may be provided in a plurality of numbers around the circumferential direction of the rotating shaft according to the requirement of actual conditions. It is understood that the number of the position restricting protrusions 133 or the position restricting grooves 132 is set according to the actual needs, and is not limited to four as shown in the drawings of the specification.

In addition, as shown in fig. 4, the stopper groove 132 has at least one inclined sidewall S11. Accordingly, as shown in fig. 5, the stopper protrusion 133 has a slope S21. The inclined side wall and the inclined surface can be set to be at an appropriate inclined angle according to the requirements of actual conditions.

In actual use, the limiting protrusion 133 may be wholly or partially received in the limiting groove 132. When the stopper protrusion 133 is fully received in the stopper groove 132, the first member and the second member are closely fitted at the shortest distance therebetween. And when the stopper projection 133 is partially received in the stopper groove 132, as shown in fig. 10, a certain gap is present between the first member and the second member.

When the second member is rotated relative to the first member in the first rotational direction to a first target angle, the limiting protrusion 133 is partially received in the limiting recess 132, and the two are connected to each other by the inclined surface and the inclined sidewall. Meanwhile, a certain gap exists between the first member 110 and the second member 120. Therefore, under the action of the axial force, there is a tendency for the first member 110 to approach the second member 120 due to the relative sliding between the limiting projection 133 and the limiting recess 132. Thereby, a rotational force is generated.

Specifically, as shown in fig. 4, the limiting protrusion 133 may be a truncated pyramid-shaped protrusion having two opposite slopes S21 and S22. As shown in fig. 5, the limiting groove 132 includes a set of inclined sidewalls S11 and S12 adapted to the truncated pyramid-shaped protrusions. The two inclined side walls S11 and S12 and the inclined surfaces S21 and S22 are disposed opposite to each other in the direction in which the second member rotates about the rotation axis.

In actual use, when the second member 120 rotates to a second target angle in the second rotation direction relative to the first member 110, the limiting protrusions 133 can be fully received in the limiting recesses 132. Therefore, the first component and the second component are contacted with each other, the limiting protrusion 133 and the limiting recess 132 do not have the tendency of relative sliding, and accordingly, the rotation acting force is not generated.

The inclined plane and the slope lateral wall that set up on spacing recess and the spacing arch in this application embodiment can also be favorable to mutual roll-off and entering between the two, are difficult to block at the relative rotation in-process of first part of second part.

Wherein the second rotational direction is a rotational direction opposite to the first rotational direction. In this embodiment, a rotation direction of the second member when the second member rotates from the second target angle to the first target angle relative to the first member may be defined as a "first rotation direction", and a rotation direction of the second member when the second member rotates from the first target angle to the second target angle relative to the first member may be defined as a "second rotation direction".

In some embodiments, the limiting recess 131 or the limiting protrusion 132 may be axially symmetrically arranged, so that the limiting protrusion can be partially or completely blocked in the limiting recess when the relative rotation angle between the first member and the second member is 180 degrees.

It should be noted that, as a set of structural components used in cooperation with each other, the positions of the limiting protrusions and the limiting grooves may be replaced with each other, and are not limited to the drawings shown in the specification. For example, the first guide member may be provided as a stopper protrusion, and the second guide member may be provided as a stopper groove.

In some embodiments, as shown in fig. 6, the rotation limiting mechanism 140 may include: a first abutment 141 and a second abutment 142.

The first abutting portion 141 may be provided in the second member at a position close to the shaft hole. The second abutting portion 142 is disposed at the end of the rotating shaft. The first abutting portion 141 and the second abutting portion 142 may specifically have any suitable type of structure according to the needs of actual situations, so that when the second component rotates to a first target angle relative to the first component along the first rotation direction, the two components can abut against each other, thereby playing an effect of limiting the rotation shaft from continuing to rotate along the first rotation direction.

For example, the second abutting portion 142 may be a member protruding from the circumferential edge of the rotating shaft, and occupies a moving track that the first abutting portion 141 passes through with the relative rotation of the second member, so that they abut against each other at the first target angle to prevent the rotating shaft from continuing to rotate. It will be appreciated that such a specific arrangement of the rotation limiting mechanism 140 will only limit the second member from continuing to rotate relative to the first member in the first rotational direction D1 without interfering with the rotation in the second rotational direction D2.

In some embodiments, as shown in fig. 7, the second component 120 may include: a component housing 122, and a battery holder 123.

Wherein, the inside of the component housing 122 may form a receiving space for receiving different devices or structures. The specific structure, size or shape of the receiving space may be set according to the actual requirements, and is not limited specifically herein. The shaft hole 121 is opened in the component case 122 and penetrates the component case 122.

The battery holder 123 is fixed to an inner wall of the component housing 122, thereby forming a battery compartment for accommodating a battery in the accommodating space. In this embodiment, the two ends of the battery holder 123 that are used to contact and separate from the battery are referred to as a first holder end 123a and a second holder end 123b, respectively.

Specifically, as shown in fig. 7, the second holder end 123b of the battery holder is located near the shaft hole 121. The first abutting portion 141 is provided at the second holder distal end 123b so as to be capable of abutting against the second abutting portion 142 at the first target angle.

In some embodiments, with continued reference to fig. 3, the first component 110 further includes: a rotating shaft base 112, a connecting part 113 and a limit ring 114.

The rotating shaft base 112 is a main structure of the first component, and may have a corresponding size or shape according to the actual requirement, such as a cylindrical shape shown in the drawings of the specification. The shaft 111 extends a predetermined length from the shaft seat.

The connection portion 113 may be a housing having an internal cavity. It extends outwards from the side wall of the rotating shaft seat to contain part of the rotating shaft in the inner cavity. An annular space is formed between the two.

The center of the limiting ring 114 is provided with a through hole so that the limiting ring can be sleeved on the rotating shaft 111. The stop collar may have a size that fits within the annular space such that the stop collar 114 is received and secured within the annular space. In this embodiment, the first guide member (e.g., a stopper recess) may be provided on a surface of the stopper ring 114 facing the second member, and the second guide member (e.g., a stopper projection) may be provided on an edge of the shaft hole of the member housing.

In order to fully describe the rotating shaft structure of the embodiment of the present application, the following takes the application of the rotating shaft structure to a pan-tilt head as an example, and detailed description is made on the specific implementation and the working principle of the rotating shaft structure. This cloud platform can switch between portable's fold condition and the expansion state of normal use. Fig. 8 is a schematic structural diagram of a cradle head provided in the embodiment of the present application in a folded state. Fig. 9 is a schematic structural diagram of a pan/tilt head provided in the embodiment of the present application in an unfolded state.

In actual use, as shown in fig. 8 and 9, when the first member 110 is rotated into position about the rotation center X21, the second member 120 can be rotated by 180 ° about the rotation axis X22 with respect to the first member 110 to enable the head to be switched to the deployed state. Vice versa, the second part 120 of the head in the unfolded state can return the head to the folded state after rotating 180 ° in the opposite direction about the axis of rotation X22, under the action of an external force.

In this embodiment, the first target angle is an angle of the second member 120 relative to the first member 110 when the cradle head is in the unfolded state. The second target angle is the angle of the second member 120 relative to the first member 110 when the cradle head is in the folded state.

Specifically, for providing richer and automatic function, can also accept circuit module, be used for parts such as the battery and a plurality of motor of power supply in the inner space of cloud platform. For example, the circuit module may be in communication connection with the shooting device, so that a user may indirectly trigger the shooting device to implement functions of starting, shooting, recording, pausing, turning off, and the like of the shooting device by pressing a function button or switch on the handle, or drive the shaft arm to rotate by the motor to keep the shooting device in an ideal shooting position or keep the shooting device stable during movement. The specific implementation of the circuit module is not limited in this application. Which can be specifically set by the skilled person as required by the actual situation.

As will be understood by those skilled in the art, for a head with a built-in circuit module, there are two different operating states, namely "on" and "off", depending on whether the circuit module is started to operate.

In some embodiments, in accordance with the above-mentioned cradle head with a built-in circuit module, as shown in fig. 13, the cradle head may further include: a microswitch 210 and a switch activation device 220.

The microswitch 210 is a switching device that can be switched between two different states, on/off. Which is associated with the power supply of the head by means of connecting wires or the like. In actual use, whether the power supply supplies power to the circuit module can be controlled through the change of the state of the power supply, and then the cradle head is started or closed.

The switch activating means 220 is a member associated with the movement of the second member 120. Which can be rotated to different angles with the second member and the corresponding trigger microswitch 210 switched between an on state and an off state. Specifically, when the second member is rotated to the first target angle, the switch triggering device 220 triggers the micro switch 210 to switch to the on state; when the second member is rotated to a second target angle after departing from the first target angle, the switch triggering device 220 triggers the micro switch 210 to switch to an off state.

In the actual use process, when the second component rotates to the first target angle (namely, the tripod head is switched to the unfolding state), the switch trigger device triggers the microswitch to be switched to the connection state, so that the tripod head is correspondingly started. When the second component rotates to the second target angle (namely, the tripod head is switched to the folding state), the switch trigger device triggers the microswitch to be switched to the off state, so that the tripod head is correspondingly closed.

In this embodiment, the additional switch trigger device linked with the second component is arranged, so that the state change of the microswitch can be correspondingly controlled, and the start/stop of the holder can be controlled. Therefore, the use experience can be effectively improved, and convenience is brought to daily use.

The microswitch 210 and the switch triggering device 220 can be selectively arranged in any suitable combination structure to realize the function of triggering the state change of the microswitch. For example, as shown in fig. 13, the micro switch 210 has a corresponding transmission member 211, and the switch activating device 220 may be a cam fixed to the end of the rotating shaft 111. The second abutment is provided on the cam 220.

As shown in fig. 13, a microswitch 210 is fixed to the second bracket end 123b, and it can be turned on when receiving a mechanical force with a transmission member 211 as a power transmission member. The cam 220 has asymmetric proximal 221 and distal 222 portions (proximal refers to the arc of the cam closest to the center of rotation of the cam and distal refers to the arc of the cam furthest from the center of rotation of the cam).

During actual use, the second member 120 rotates relative to the first member 110 during the change of the head from the folded state to the unfolded state. As the second member rotates, the microswitch gradually slides relative to the cam from a proximal portion to a distal portion of the cam. When the second member is rotated to the proper position and reaches a preset rotation angle, as shown in fig. 11, the cam 220 can apply a mechanical acting force to the micro switch 210, so that the micro switch is switched to a closed state, and further the circuit module of the cradle head is controlled to be opened.

At this time, the limiting protrusion is only partially accommodated in the limiting recess, and a gap exists between the first component and the second component. The inclined contact surface contacted with the elastic component can generate steering acting force under the action of axial force applied by the elastic component, so that the rotating shaft has the tendency of continuously rotating along the first rotating direction. Meanwhile, the first abutting part and the second abutting part of the rotation limiting mechanism abut against each other, so that one side of the rotating shaft is subjected to resistance for limiting the continuous rotation of the rotating shaft. Therefore, the stress at the two ends of the rotating shaft is unbalanced, and the rotating shaft inclines relative to the shaft hole, so that the effect of eliminating the radial clearance is achieved.

On the other hand, in the process of changing the handheld tripod head from the unfolded state to the folded state, as the second member rotates to the second target angle relative to the first member along the second rotation direction, as shown in fig. 12, the micro switch 210 gradually slides from the telecentric part to the proximal part relative to the cam, the mechanical force applied to the micro switch is removed, the micro switch 210 is reset to the off state, and the handheld tripod head is controlled to be automatically turned off.

At this time, the stopper protrusion is entirely received in the stopper recess. Under the action of axial force, the first component is tightly attached to the second component, so that the first component is maintained in a folded state. Meanwhile, the first abutting part and the second abutting part are far away from each other, so that the rotation of the rotating shaft is not influenced.

The foregoing is a further detailed description of the present application in connection with specific/preferred embodiments and is not intended to limit the present application to that particular description. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.

Claims (10)

1. A hinge structure, comprising:

a first member; the first part is provided with a rotating shaft extending along the axial direction;

a second component; the second part is provided with a shaft hole; the rotating shaft penetrates through the shaft hole, and at least one part of the rotating shaft is accommodated in the second part;

a rotation driving mechanism; the rotation driving mechanism is used for: generating a rotational acting force to make the rotating shaft have a tendency to rotate along a first rotating direction;

a rotation limiting mechanism; the rotation limiting mechanism is positioned on one side of the rotating shaft;

when the second component rotates relative to the first component to a first target angle along the first rotating direction, the rotation limiting mechanism limits the rotating shaft to continue rotating along the first rotating direction, so that the rotating shaft with the rotating trend along the first rotating direction inclines relative to the shaft hole.

2. The spindle structure according to claim 1, wherein the rotation driving mechanism comprises:

an elastic component; the elastic assembly is positioned in the second part and used for generating axial force along the axial direction of the rotating shaft so as to enable the first part and the second part to have the tendency of approaching to each other;

a first guide member; the first guide member is disposed on the first member;

a second guide member; the second guide member is provided on the second member;

when the second component rotates relative to the first component along the first rotating direction to a first target angle, at least one part of inclined contact surface is arranged between the first guide component and the second guide component, and the inclined contact surface is not perpendicular to the axial direction, so that at least one part of the axial force is converted into the rotation acting force.

3. The hinge structure of claim 2, wherein the elastic member comprises:

a compression spring; the compression spring is sleeved on the rotating shaft;

a first gasket; the first gasket is arranged inside the second component; the first gasket is provided with a through hole which is aligned with the shaft hole so as to allow the rotating shaft to pass through;

a second gasket; the second gasket is fixedly connected with the rotating shaft;

the two ends of the compression spring are respectively connected with the first gasket and the second gasket, and the compression spring is used for applying axial force for driving the tail end of the rotating shaft to be far away from the shaft hole to the rotating shaft through the second gasket so as to limit the rotating shaft to be separated from the second component.

4. The hinge structure according to claim 2, wherein the first guide member is a limiting recess, and the second guide member is a limiting projection;

or the first guide part is a limiting bulge, and the second guide part is a limiting groove;

a plurality of limiting bulges and limiting grooves are arranged around the circumferential direction of the rotating shaft; the limiting groove is provided with an inclined side wall, and the limiting protrusion is provided with an inclined surface;

when the second component rotates relative to the first component along the first rotating direction to a first target angle, the limiting protrusion is partially accommodated in the limiting groove, and the inclined side wall is connected with the inclined surface to form the inclined contact surface; and is provided with

Under the action of the axial force, the limiting protrusion and the limiting groove have a relative sliding trend so as to generate the rotating acting force.

5. The hinge structure according to claim 4, wherein when the second member is rotated to a second target angle in a second rotational direction relative to the first member, the limiting protrusion is completely received in the limiting groove, and there is no relative sliding tendency;

wherein the second rotational direction is opposite the first rotational direction.

6. The spindle structure according to claim 2, wherein the rotation restricting mechanism comprises:

a first abutment portion provided within the second member;

the second abutting part is arranged at the tail end of the rotating shaft;

when the second component rotates relative to the first component to a first target angle along the first rotating direction, the first abutting part and the second abutting part abut against each other to limit the rotating shaft to rotate continuously along the first rotating direction.

7. The hinge structure of claim 6, wherein said second member comprises:

a component housing; an accommodating space is formed in the component shell, and a shaft hole penetrating through the component shell is formed in the component shell;

a battery holder; the battery bracket is fixed in the component shell, and a battery bin for accommodating a battery is formed in the accommodating space;

wherein the battery bracket has a first bracket end for interfacing with a battery and a second bracket end facing away from the battery; the first abutting portion is provided at the second bracket distal end.

8. The hinge structure of claim 7, wherein said first member further comprises:

a rotating shaft seat; the rotating shaft extends outwards from the rotating shaft seat by a preset length;

a connecting portion; the connecting part extends outwards from the side wall of the rotating shaft seat; the rotating shaft is positioned in the connecting part, and an annular space is formed between the rotating shaft and the connecting part;

a limiting ring; the limiting ring is sleeved on the rotating shaft and is contained and fixed in the annular space;

wherein the first guide member is provided on the retainer ring, and the second guide member is provided on the member case.

9. A head having a folded state and an unfolded state, characterized in that it comprises a hinge structure according to any one of claims 1 to 8;

when the holder is in an unfolding state, the second part of the rotating shaft structure rotates to a first target angle relative to the first part; when the holder is in a folded state, the second part of the rotating shaft structure rotates to a second target angle relative to the first part.

10. A head according to claim 9, further comprising:

a microswitch; the microswitch is housed within the second component; the micro switch is used for switching between a connection state and a disconnection state so as to enable the holder to be started or closed;

a switch triggering device; the switch triggering device is accommodated in the second component and is used for triggering the micro switch to switch between the on state and the off state;

when the second component rotates to the first target angle, the switch trigger device triggers the microswitch to be switched into the on state;

when the second component leaves from the first target angle and rotates to the second target angle, the switch trigger device triggers the microswitch to be switched to the off state.

Images