CN112901960A

CN112901960A - Handheld photographic equipment

Info

Publication number: CN112901960A
Application number: CN202110266136.7A
Authority: CN
Inventors: 徐紫阳; 唐昌辉
Original assignee: Guilin Zhishen Information Technology Co Ltd
Current assignee: Guilin Zhishen Information Technology Co Ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-06-04
Anticipated expiration: 2041-03-11
Also published as: CN112901960B

Abstract

The invention relates to a hand-held photographic apparatus, which comprises a hand-held frame; a first stability augmentation device; bear in the second of handheld frame and increase steady device, it includes: a housing received to the hand-held housing; a first swinging member pivotable relative to the housing; the second swinging piece is connected with the first swinging piece at one end and can be connected with the first stability augmentation device at the other end; the gravity balance piece is used for generating torque for balancing the gravity under the action of the gravity exerted by the shooting device and the first stability augmentation device and performing vertical stability augmentation on the shooting device; wherein the second oscillating member is designed to be linearly displaceable relative to the first oscillating member so that the torque created by the force of gravity is substantially constant. Thereby, a substantially stable torque to be balanced can be achieved within the range of the swing angle of the swing member and thereby allowing the photographing device to move forward and backward without significant occurrence during the up-and-down heave movement.

Description

Handheld photographic equipment

Technical Field

The invention relates to the technical field of photography and shooting auxiliary equipment, in particular to handheld photography equipment.

Background

With the development of smart technology, photography (for example, photography using a mobile phone or a camera) is gradually becoming a preference of many people, and the requirement of a photographer (operator) on the photography effect is also increasing. In general, the operator can obtain a desired imaging effect in a stationary state. However, once the photographer is required to make a large amplitude exercise of walking, jumping, running, or the like in some occasions, the photographing effect is often unsatisfactory. The conventional handheld photographic equipment for assisting a camera device such as a stability-increasing mobile phone or a camera and the like mostly adopts a three-axis stability-increasing cradle head to compensate for micro jitter in the shooting process. Although the three-axis stability augmentation holder can significantly improve the stability of video shooting, the up-and-down movement generated by a user during running or walking at high speed cannot be significantly eliminated by means of the three-axis stability augmentation holder.

In order to offset the adverse effect of the up-and-down motion of the user on the shooting, a vertical stability augmentation device is provided in the patent No. CN210771365U utility model, which comprises a first connecting piece, a swing arm assembly and a second connecting piece which are connected in sequence, wherein the first connecting piece vertically augments the shooting device through the up-and-down motion of the swing arm assembly relative to the motion of the second connecting piece. However, in practice, the vertical stability augmentation device is found to belong to passive mechanical vertical stability augmentation, and has poor stability augmentation effect and unsatisfactory responsiveness on high-frequency micro fluctuation motion; further, since the length of the swing arm assembly is constant, this causes the lens of the photographing device carried by the vertical stabilizer to move forward and backward by a distance when the photographing device swings up and down, specifically, to be the foremost in the horizontal posture and the rearmost in the uppermost position and the lowermost position, which makes it impossible to obtain satisfactory photographing quality; further, because the length of the swing arm assembly is constant, the moment required for balancing the shooting device in the swinging process is also changed, and under the condition that balance pieces such as springs are set, the vertical stability augmentation device can only achieve vertical stability augmentation within a limited angle, and once the swinging range is too large, the vertical stability augmentation performance is obviously deteriorated. Finally, the vertical stability augmentation device designed in the way is large in size and heavy in weight, and cannot satisfactorily meet user requirements such as portability.

Also, a vertical stability augmentation mechanism is proposed in utility model patent No. CN211600052U, which includes: the driving assembly is installed on the installation frame, and when the installation frame generates vertical displacement or rotation, the driving assembly drives the first moment balancing mechanism to move, so that the first moment balancing mechanism and the second moment balancing mechanism drive the bearing piece to move along the vertical displacement or the direction opposite to the rotation direction, the influence of translation shaking on a load is reduced or eliminated, and the shooting effect of the shooting equipment is guaranteed. In this design, the vertical stability increasing mechanism performs better in response due to the driving component such as the motor, but because the vertical stability increasing mechanism performs load balancing by using the resultant moment of the first torque balancing mechanism 230 and the second torque balancing mechanism 240, the motor is subjected to obvious torque fluctuation, and thus, the requirements on the maximum torque and the torque control of the motor are severe. Similarly, because the length of the bearing part is constant, the design also has the defects of back and forth movement of the shooting device in the up-and-down fluctuation movement process, limited angle of load balance, overlarge volume of the whole machine and the like.

Accordingly, the present invention is directed to a handheld camera device that overcomes the shortcomings of the prior art.

Disclosure of Invention

It is therefore an object of the present invention to provide a handheld photographic apparatus, whereby the above-mentioned disadvantages of the prior art are overcome.

To accomplish the above task, the present invention provides a handheld photographic apparatus configured to allow an auxiliary photographing device to photograph, comprising: a hand-held housing; a first stabilization device configured to stabilize the attitude of the photographing device at least in a pitch direction by at least one stabilization motor; bear in the second of handheld frame and increase steady device, it includes: a housing received to the hand-held housing; a first swinging member pivotable relative to the housing; the second swinging piece is connected with the first swinging piece at one end and can be connected with the first stability augmentation device at the other end; the gravity balance piece is used for generating torque for balancing gravity under the action of gravity applied by the shooting device and the first stability augmentation device and performing vertical stability augmentation on the shooting device; wherein the second oscillating member is designed to be linearly displaceable relative to the first oscillating member so that the torque created by the force of gravity is substantially constant.

Thus, unlike the prior art in which the length of the swing arm assembly used as a load is constant, in the present invention, since the first and second swinging members are relatively linearly displaceable, this allows a substantially stable torque to be balanced within the swinging angle range of the swinging members and thus allows the photographing device not to significantly move forward and backward during the up-and-down heave movement. Further, since the first stabilization device and the photographing device in the handheld photographing apparatus of the present invention are in a lateral manner, the overall volume of the handheld photographing apparatus is reduced and the design is simple.

In a preferred embodiment, the camera further comprises a guide member operatively connected to the second swinging member, wherein a guide path is formed on the guide member, wherein the second swinging member is movable along the guide path to elongate the second swinging member relative to the first swinging member during pivoting of the first swinging member, thereby maintaining the vertical projection position of the camera substantially constant. Thereby, it is allowed to achieve precise displacement of the second swinging member with respect to the first swinging member over the entire swinging angle range of the swinging members, thereby keeping the vertical projection position of the photographing device substantially constant

In a preferred embodiment, the guide is designed to be fixedly connected to the handheld chassis and comprises a substantially centrally arranged base point and a first guide section and a second guide section extending from the base point to both sides, through which the second pendulum can be inserted, wherein the first guide section and the second guide section both extend towards the camera. Thereby, a stable and accurate guiding of the second slide is allowed to be achieved in a simple and cost-effective manner.

In a preferred embodiment, the first guide section and the second guide section are designed as arc-shaped guide grooves having substantially the same radius of curvature. Thereby, a stable and accurate guiding of the second slide is allowed to be achieved in a simple and cost-effective manner.

In a preferred embodiment, the guide groove is designed as a stepped groove with different inner diameters, wherein a stepped guide with different outer diameters is fixedly connected to the second pendulum part, wherein the outer diameter of the stepped guide and the inner diameter of the guide groove are adapted such that the stepped guide is in contact fit to the stepped groove with different inner diameters, each substantially without play. Thereby, it is allowed to provide the movement accuracy of the guide portion with respect to the guide groove in a simple manner.

In a preferred embodiment, the camera further comprises a motor operatively connected to the second swing member, wherein the motor is mounted to the handheld chassis adjacent to the first stabilizer and is configured to vertically displace the second swing member and the camera. Thereby, by designing the gravity balance and the motor independently of each other, it is allowed to arrange the motor close to the first stabilizer, which thereby reduces the requirement for the output torque of the motor and further enables to improve the accuracy and responsiveness of the vertical stabilization.

In a preferred embodiment, the motor is provided with an output part which is eccentrically arranged relative to the motor axis, and the second swinging member is provided with a guide groove in which the output part is arranged, so that the rotation of the output part around the motor axis is converted into the swinging motion of the second swinging member. This allows the requirements for the output torque of the electric motor to be reduced by means of the lever effect of the pendulum, and the accuracy and the responsiveness of the vertical stabilization can be further increased.

In a preferred embodiment, the camera further comprises a control device electrically connected to the motor and configured to control the operation of the motor based on the attitude information of the camera measured by the attitude sensor to hold the camera at a certain position in the vertical direction.

In a preferred embodiment, the gravity balance member includes a coil spring wound within the housing, one end of the coil spring being coupled to the housing and the other end thereof being coupled to a rotation shaft fixedly connected to the first swinging member, so that the coil spring is wound or unwound with the rotation of the first swinging member. Thereby, the weight forces of the photographing device and the first stability enhancing device are balanced in a simple and cost-effective manner.

In a preferred embodiment, the housing can be latched in different angular positions relative to the hand held housing to adjust the pre-tension of the coil spring by rotating and latching the housing. Thus, the versatility of the handheld photographic equipment is improved in a simple and low-cost manner and the carrying of various different types of shooting devices is allowed.

Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following, or may be learned from the practice of the invention.

Drawings

Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a perspective view of a handheld photographic device with portions broken away to better illustrate the components of the photographic device in accordance with the present invention;

FIG. 2 is a side view of the handheld photographic equipment of FIG. 1;

FIG. 3 is an exploded view of the handheld camera device of FIG. 1 to better illustrate a housing received in a handheld chassis;

FIG. 4 shows a coil spring received in the housing;

FIGS. 5a-5c are schematic views illustrating the use of the handheld photographic equipment according to the present invention;

FIG. 6 is a functional diagram of maintaining a substantially constant gravitational torque;

fig. 7 shows an exemplary guide groove and guide portion for the handheld camera equipment of the present invention.

Description of the reference numerals

10-hand-held photographic equipment 11-hand-held frame 11A-containing seat 12-first stability augmentation device

12A-stability augmentation motor 13-second stability augmentation device 131-shell 132-first swinging piece

133-second pendulum 134-guide 134A-first guide section

134B-second guide section 135-guide 136-guide slot 137-motor

137A-output portion 138-coil spring 131A-clamping portion 131B-rotating shaft

131C-catch 20-camera A1-first pivot axis A2-second pivot axis

Detailed Description

An exemplary aspect of a handheld photographic equipment in accordance with the present invention will now be described in detail with reference to the accompanying drawings. The drawings are provided to present embodiments of the invention, but the drawings are not necessarily to scale of the particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the present disclosure. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all of the drawings or the examples.

Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "upper", "lower", and other directional terms, will be understood to have their normal meaning and refer to those directions as they relate to when the drawings are normally viewed. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.

The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring first to fig. 1, a handheld camera device 10 according to a preferred embodiment of the present invention is shown, wherein the handheld camera device 10 is capable of providing a reliable vertical stability enhancement effect during a large-scale movement of a user, and at the same time, is capable of driving a load carried by the handheld camera device to move in a vertical direction with a certain trajectory, so as to allow a plurality of auxiliary shooting of the load, thereby overcoming the defects of the prior art that a shooting device moves back and forth during an up-and-down movement, and has harsh requirements on maximum torque and torque control of a motor. Further, the handheld photographic device according to the present invention has a simple structure and a compact integral base, and thus is easy to manufacture at low cost and convenient for a user to carry, store and use. As an example, the handheld camera equipment 10 includes a handheld stand 11 shown in fig. 1 to 2 and a first and a second stabilization device 12 and 13 carried by the handheld stand 11.

The structure of the handheld camera equipment 10 will first be described below in non-limiting manner with reference to fig. 1-2.

Referring to fig. 1 to 2 together, a handheld photographic apparatus 10 as an exemplary preferred embodiment of the present application is shown, wherein the handheld photographic apparatus 10 not only can stabilize a mounted shooting device 20 (shown here as a single lens reflex camera, but not limited to a single lens reflex camera, but also can be, for example, a video camera, etc.) in a space at least in a pitch direction by means of a first stabilizing device 12, but also can vertically stabilize the shooting device 20 by means of a second stabilizing device 13 to suppress or counteract up-and-down heave movement caused by, for example, walking of a user. In fig. 1 and 2, the first stabilizing device 12 is shown as a three-axis electronic stabilizer with a stabilizing motor 12A (pitch direction), although those skilled in the art will appreciate that existing single-axis electronic stabilizers (with pitch stabilizing motors) and two-axis electronic stabilizers are also possible. Since the structure of an electronic stabilizer is well known to those skilled in the art, it will not be described herein.

As shown in fig. 1, the handheld chassis 11 of the handheld camera device 10 includes two handheld portions on two sides for being held or lifted by a user, where the handheld portions may be made of carbon fiber tubes or other suitable materials by bending. Further, the hand-held housing 11 also includes a receiving seat 11A centrally disposed on the hand-held portion, where the receiving seat 11A is illustratively configured as a concave shape that allows the housing 131, hereinafter, to be received with an interference fit or press fit. It should be noted that the handheld stand 11 does not necessarily include a handheld portion formed of a tubular member as shown in fig. 1, and any structure or configuration that allows a user to directly or indirectly hold the handheld photographic equipment may be considered as the handheld stand 11 in the sense of the present invention.

In order to achieve the stabilization of the first stabilization device 12 and the camera device 20 carried by the first stabilization device in the vertical direction so as to counteract or suppress the shaking of the camera device 20 caused by, for example, the walking movement of the user or the up-and-down movement of the camera device when carried by a vehicle, the handheld camera equipment according to the present invention is further provided with a second stabilization device 13 carried by the handheld frame 11A. In the preferred embodiment, the second stabilizing device 13 includes a housing 131 that is received in the handheld housing 11; a first swinging member 132 and a second swinging member 133 which are pivotable relative to the housing 131, where one end of the second swinging member 133 is connected to the first swinging member 132 and the other end can be connected to the first stabilizer 12. Thus, the first and second swinging

members

132, 133 carry the first stabilization device 12 and the camera 20 carried thereby in a cantilever fashion at one end (the right side in fig. 1, or the distal end) thereof, and at the opposite end (the left side in fig. 1, or the proximal end) thereof pivot relative to the housing 131 and are operatively connected to a gravity balancing member, described below, so as to generate a torque for balancing the gravity and vertically stabilize the camera 20 relative to the first pivot axis a1 of the first swinging member 132 under the influence of the gravity exerted by the camera 20 and the first stabilization device 12. In other words, in the present invention, the photographing device 20 and the first stability enhancing device 12 are not vertically placed, but horizontally placed, thereby reducing the overall volume and having a simple structure. It is noted that in this context, the term "balancing" is not necessarily understood to mean that the gravitational effect of the camera 20 and the first stabilization device 12 is completely neutralized or counteracted, which does not significantly cause vertical shaking of the camera that the user can directly experience or which can be neutralized or counteracted by means of a relatively small external torque in a very short time that is not noticeable by the user, also covers the semantic scope of the "balancing" of the present invention. It is further emphasized that the term "vertical" broadly refers to an orientation having a vertical component, i.e. as long as the orientation has a component in the vertical direction, it is encompassed by the semantic scope of "vertical" in the present invention, in other words, the direction of the macroscopic motion of the vertical direction is not necessarily vertical, but may also have an angle with the vertical direction.

The housing 131 and the weight counterbalance arranged in the housing 131, which is here preferably designed as a coil spring 138 coiled in the housing 131, are described in detail below in connection with fig. 3 and 4. As shown in fig. 3, the housing 131 is substantially designed as a cylindrical housing with ratchet teeth on the outside and a rotating shaft 131B is integrally formed at the center of the housing, where the rotating shaft 131B is designed to define a first pivot axis a1 and is operatively connected with the first swinging member 132 mentioned above. Specifically, as a preferable mode, the first swinging member 131 may be connected to the end of the rotating shaft 131B in a rotation-stopped manner, thereby allowing the torque from the coil spring 138 to be transmitted to the first swinging member 132 and the second swinging member 133 operatively connected thereto via the rotating shaft 131B.

As shown in fig. 4, a clip portion 131A for clipping one end (or outer end) of the coil spring 138 is provided on the inner side of the housing 131, and the clip portion 131A is, for example, a slot integrally formed with the housing 131. Meanwhile, a slot into which the other end (or the inner end) of the coil spring 138 is inserted is also formed in the side wall of the rotating shaft 131B, so that the coil spring 138 can be wound or unwound under the driving of the rotating shaft 131B along with the rotation of the first swinging member 132. Since the coil spring 138 itself has elastic force, when the elastic coefficient of the coil spring 138 is selected, the torque generated by the gravity applied by the camera device 20 and the first stability enhancing device 12 is converted into a force for rolling or unrolling the coil spring 138 against the elastic coefficient thereof by means of the first swinging member 132 and the second swinging member 133, that is, the torque generated by the gravity of the camera device 20 and the first stability enhancing device 12 is balanced by the rolling or unrolling of the coil spring.

Since the weight of the camera 20 may vary over a range, it is preferable to adjust the initial pre-tension of the coil spring 138 to allow the handheld camera equipment to be adapted to different weights and types of cameras 20. In a preferred embodiment, a locking element 131C, preferably a pawl, is provided in the receptacle 11A of the hand-held chassis 11, said locking element being able to engage with a ratchet on the outside of the housing 131. Through the design, according to the weight of the shooting device 20, the shell 131 is firstly rotated to adjust the initial pre-tightening force of the coil spring 138 so as to balance the weight of the shooting device 20 and the first stability augmentation device 12, and then the shell 131 is locked at the adjusted position through the matching of the pawl and the ratchet. Of course, those skilled in the art will appreciate that the adjustment of the initial preload of the coil spring 138 is not limited to the pawl and ratchet arrangement described above, and other arrangements of locking or detent pins are possible.

In the present invention, in order to prevent the photographing device from moving forward and backward during the up-and-down movement and further avoid a significant change in the torque to be balanced, the second swinging member 133 is designed to be linearly displaced with respect to the first swinging member 132 in the handheld photographing apparatus of the present invention so that the torque formed by the gravity is substantially constant. As shown in fig. 1 in particular, the first swing member 132 is provided with a slide rail that slidably guides the second swing member 133, wherein the second swing member 133 is slidably disposed in the slide rail of the first swing member 132 in a linearly displaceable manner. Of course, it should be noted that the way of providing the first swinging member 132 with a sliding rail is only an exemplary way, and the first swinging member 132 and the second swinging member 133 may also be designed as a mechanism allowing linear extension and contraction, such as an expansion rod or an expansion rod, which are also feasible for the present invention.

As an example, when the first and second swinging

members

132 and 133 are bent under the gravity of the photographing device 20 and the first stabilizer 12, due to the gravity of the photographing device 20 and the first stabilizer 12 themselves, the second swinging member 133 may be extended outward relative to the first swinging member 132 against the static friction force relative to the first swinging member 132, and the length of the extension may be designed such that the overall center of gravity of the photographing device 20 and the first stabilizer 12 is substantially constant in the vertical direction by means of the roughness of the sliding surface of the first swinging member 132, so that the torque formed by the gravity of the photographing device 20 and the first stabilizer 12 is substantially constant. In this way, as long as the preload of the coil spring 138 is adjusted to be appropriate, the photographing device 20 and the first stabilizer 12 can be made to be substantially in a gravity-balanced state when vertically moving and can finally be slowly moved up to their vertically lowest positions due to air resistance or friction torque at the respective connection points or the like. Thus, it is possible to achieve vertical stability augmentation over a wide angular range without the aid of an external motor, solely by the action of the coil spring 138, so that the torque developed by the camera 20 and the first stability augmentation device 12 is substantially constant at this time, and no significant change in the torque to be balanced occurs, so that acceptable vertical stability augmentation can be achieved by factors such as air resistance or friction torque at various connection points. Further, since the vertical projection position of the center of gravity of the photographing device 20 is substantially constant throughout the movement, the picture photographed by the photographing device 20 is not adversely affected.

As is clear from the above, in the present invention, since the first and second swinging

members

132 and 133 are relatively linearly displaceable, this allows a substantially stable torque to be balanced within the swinging angle range of the swinging members and thus allows the photographing apparatus not to significantly move forward and backward during the up-and-down heave movement, unlike the case where the length of the swing arm assembly used as a load in the prior art is constant. Further, since the first stabilization device and the photographing device in the handheld photographing apparatus of the present invention are in a lateral manner, the overall volume of the handheld photographing apparatus is reduced and the design is simple.

On this basis, a further preferred embodiment of the present invention is shown in fig. 1 and 2, and as shown in fig. 1 and 2, the handheld camera device 10 further includes a guide member 134 operatively connected to the second swinging member 133, wherein a guide path is formed on the guide member 134, wherein the second swinging member 133 is movable along the guide path of the guide member 134 to extend and retract the second swinging member 133 relative to the first swinging member 132 during pivoting of the first swinging member 132, so that the vertical projection position of the photographing device 20 is maintained substantially constant (see, for example, fig. 5a to 5 c). The guide 134 can be formed integrally with the hand-held chassis 11 or can be fixedly connected to the hand-held chassis 11, for example. Depending on the movement of the camera device 20, the guide 134 may have different designs, for example, if the camera device 20 mentioned above is designed for only a downward and downward movement (which may be set by means of the force of the coil spring 138, for example), the guide 134 may have only a single guide section. In the embodiment shown in fig. 1 and 2, since it is desirable for the camera 20 to be able to tilt up and down (see, for example, fig. 5a-5c), the guide 134 comprises a substantially centrally disposed base point and a first guide section 134A and a second guide section 134B into which the guide 135 of the second swinging member can be inserted, which extend from the base point to both sides, wherein the first guide section 134A and the second guide section 134B each extend toward the camera. The first guide section 134A serves to guide the second pivot element 133 during the tilting movement of the camera 20, and the second guide section 134B serves to guide the second pivot element 133 during the tilting movement of the camera 20. Due to the desire to keep the vertical projection position of the camera substantially constant, the first and

second guide sections

134A, 134B are designed as arc-shaped guide grooves having substantially the same radius of curvature. Of course, the first and

second guiding sections

134A and 134B do not have to be slotted, and may be a slot or a sliding rail or other alternatives.

As shown in fig. 5a to 5c, when the user moves up and down in running or walking at high speed, the photographing device 20 and the first stabilizing device 12 move up and down due to their own inertia, and at this time, since the second swinging member 133 is designed to be linearly displaced with respect to the first swinging member 132 and the guide portion 135 thereof is inserted into the first guide section 134A and the second guide section 134B of the guide member 134, the actual movement of the second swinging member 133 needs to be restricted by both the guide of the first swinging member 132 and the guide of the first guide section 134A and the second guide section 134B.

As shown in fig. 6, where the graph denoted by R is the locus traced by the first swinging member 132 when swinging and the graph denoted by R is the locus traced by the combination of the first swinging member 132 and the second swinging member 133 when swinging (assuming that the second swinging member 133 cannot be displaced with respect to the first swinging member 132 at this time), the result is that the photographing device vertical projection position actually changes, which entails a significant change in the torque to be balanced and a back-and-forth movement of the photographing device. Here, since the degree to which the second swinging member 133 can be linearly displaced with respect to the first swinging member 132 on the one hand and the second swinging member 133 can be linearly displaced with respect to the first swinging member 132 on the other hand is determined by the first guide section 134A or the second guide section 134B of the guide member 134, specifically, at any angle of rotation of the first oscillating member 132 relative to its axis of rotation a1 (the highest point being taken as an example in figure 6), wherein the second guiding section 134B has a path D, which results in the second oscillating member 133 extending outwardly by a length B1 with respect to the trajectory r described by the non-displaceable first oscillating member 132, as a result, the locus R defined by the combination of the first swinging member 132 and the second swinging member 133 during swinging also projects outwardly by a length b1 at the same angle, thereby forcibly compensating the originally moved back vertical projection position of the photographing device 20 to the vertical hypothetical line C. By analogy, over the entire range of the oscillation angle of the first oscillating piece 132, the second oscillating piece 133 is forced by the first guide section 134A or the second guide section 134B of the guide piece 134 at different angular positions respectively by an appropriate length outwardly with respect to the first oscillating piece 132, allowing to compensate the trajectory R at the same angular position respectively to the vertical hypothetical line C. As a result, the vertical projection position of the photographing device 20 is kept substantially constant.

Another preferred aspect of the present invention is also shown in fig. 1 and 2. As shown in fig. 1 and 2, the handheld camera equipment 10 further includes a motor 137 operatively connected to the second swinging member 133, wherein the motor 137 is mounted to the handheld chassis 11 adjacent to the first stabilizer 12 and is configured to vertically displace the second swinging member 133 and the camera 20. As described above, since the first and second swinging

members

132 and 133 are designed to carry the first stabilizing device 12 and the photographing device 20 in a cantilever manner, the farther the motor 137 is disposed from the pivot axis a1 of the first swinging member 132, the greater the torque corresponding to the action of the distance due to the lever effect in proportion thereto is in the case of the same force, thereby allowing a reduction in the requirement for the output force of the motor 137. Further, because the effect of the motor 137 here mainly lies in improving the vertical responsiveness and the sensitivity that increases steady of handheld photographic equipment, consequently the mounted position of motor 137 and motor dynamics all can set up in a flexible way, and this design degree of difficulty that has simplified the engineer and has reduced the degree of difficulty and the cost of production and assembly.

As shown in fig. 1 and 2, the motor 137 has an output 137A which is arranged eccentrically with respect to the motor axis a 2. Correspondingly, the second swinging member 133 is provided with a guide groove 136 through which the output part 137A is inserted, so that the rotation of the output part 137A around the motor axis a2 is converted into the swinging motion of the second swinging member 137. The rotation and force of the motor 137 can be flexibly set, for example, it can be preset to assist the torque balance of the camera 20 and the first warming device 12 according to the curling characteristics of the coil spring 138. Of course, the motor 137 may also be used as other control means to enrich the functionality and accuracy of use of the handheld camera equipment.

It is given here as a preferred embodiment that the handheld photographic apparatus 10 further includes a control device electrically connected to the motor 137 and configured to control the action of the motor 137 based on the attitude information of the photographing device 20 measured by the attitude sensor to hold the photographing device 20 at a certain position in the vertical direction. Specifically, the control device 137 may be an electronic tuning board of the motor 137, and the attitude sensor may be, for example, an inertial sensing unit (IMU) fixedly connected to the photographing device 20 or an inertial sensing unit (IMU) fixedly connected to the stability augmentation motor 12A. The sensing signal of the inertial sensing unit (IMU) may be electrically connected with the motor 137 in a wireless or wired manner, and a control algorithm for performing closed-loop control of a speed loop and a position loop based on the signal of the inertial sensing unit (IMU) is provided in the electronic adjustment board, whereby the photographing device 20 may be maintained at a certain position in the vertical direction by the action with the motor 137. Since the closed-loop control of the velocity loop and the position loop based on signals from an inertial sensing unit (IMU) is conventional in the art and well known to those skilled in the art, it is not described in detail herein.

Fig. 7 also shows another preferred aspect of the invention, in which the guide grooves in the guide piece 134 shown in fig. 1 and 2 are designed as stepped grooves with different inner diameters, wherein a stepped guide 135 with different outer diameters is fixedly connected to the second pivoting part 133, wherein the stepped guide 135 is designed with a first guide with a smaller outer diameter at the top and a second guide with a larger outer diameter at the bottom. Wherein the outer diameter of the stepped guide 135 and the inner diameter of the guide groove are adapted such that the stepped guides are each contact-fitted to stepped grooves having different inner diameters substantially without a gap.

In the prior art, when the guide groove of the guide member 14 is generally designed to have a constant inner diameter and the guide portion 135 (the number of the guide portions may be one or more, and when the guide portions are plural, the diameters of the respective guide portions are equal) of the second swinging member 133 also has a matching constant outer diameter, in order to enable the guide portion 135 of the swinging member 133 to be fitted into and moved along the guide groove, the inner diameter of the guide groove generally needs to be designed to be larger than the outer diameter of the guide portion 135, otherwise the movement of the guide portion in the guide groove may be restricted (e.g., caught). Since the guide portion cannot be tightly engaged with the guide groove due to the large inner diameter of the guide groove in order to ensure that the relative movement of the guide portion and the guide groove is not hindered, the accuracy of the movement of the guide portion with respect to the guide groove is impaired.

The guide groove shown in fig. 7 forms a stepped groove surface on one side while providing guide portions (e.g., two guide portions) having different outer diameters, one of which is engaged with the stepped groove surface and the other of which is engaged with the flat groove surface after the guide portions are inserted into the guide groove, and the engagement is tight and substantially gapless between the respective guide portions and groove surfaces engaged with each other, thereby improving the accuracy of movement of the guide portion 135 relative to the guide groove by the tight engagement between the guide portions and the engaged groove surfaces when the guide block moves relative to the guide block.

As is apparent from the above description, the present invention provides a handheld camera apparatus by designing the first and second swinging

members

132 and 133 to be linearly displaceable relative to each other, which allows a substantially stable torque to be balanced within a swinging angle range of the swinging members and thus allows the photographing device 20 not to significantly move back and forth during the up-and-down seesaw movement. Further, as a preferable aspect, a simple guide means is proposed to reliably achieve accurate displacement of the second swinging member 133 relative to the first swinging member 132 throughout the entire swinging angle range, thereby keeping the vertical projection position of the photographing device 20 substantially constant. Further, as a preferable aspect, since the gravity balance member and the motor can be designed independently of each other, it is allowed to arrange the motor close to the first stabilizer, which thereby reduces the requirement for the output torque of the motor and further enables the accuracy and responsiveness of vertical stabilization to be improved. Further, as a preferred aspect, the pre-tightening force of the gravity balance piece is adjustable, so that the universality of the handheld photographic equipment can be improved, and a plurality of different types of shooting devices can be carried. In addition, the handheld photographic equipment also realizes the design of compact space, reasonable structure and small volume.

While the invention has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the invention is not limited to such disclosed embodiments. Rather, the invention can be modified by incorporating any number of variations, alterations, substitutions or equivalent arrangements not heretofore described, but which are commensurate with the spirit and scope of the invention. Additionally, while various embodiments of the invention have been described, it is to be understood that aspects of the invention may include only some of the embodiments. Accordingly, the invention is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.

Claims

1. A handheld photographic device configured to allow an auxiliary camera to take a picture and comprising:

a hand-held housing;

a first stabilization device configured to stabilize the attitude of the photographing device at least in a pitch direction by at least one stabilization motor;

bear the second on this handheld frame and increase steady device, it includes:

a shell accommodated in the handheld rack;

a first swinging member pivotable relative to the housing;

the second swinging piece is connected with the first swinging piece at one end and can be connected with the first stability augmentation device at the other end;

the gravity balance piece is used for generating torque for balancing gravity under the action of gravity applied by the shooting device and the first stability augmentation device and performing vertical stability augmentation on the shooting device;

characterized in that the second oscillating member is designed to be linearly displaceable relative to the first oscillating member so that the torque created by the force of gravity is substantially constant.

2. The handheld photographic apparatus of claim 1, further comprising a guide operatively connected to the second swinging member, wherein a guide path is formed on the guide along which the second swinging member is movable to elongate the second swinging member relative to the first swinging member during pivoting of the first swinging member to maintain a vertical projected position of the photographic device substantially constant.

3. A handheld photographic apparatus as claimed in claim 2, wherein the guide is designed to be fixedly connected to the handheld chassis and comprises a substantially centrally disposed base point and first and second guide sections extending bilaterally from the base point through which the second pendulum can be inserted, wherein the first and second guide sections each extend toward the camera.

4. The handheld photographic apparatus of claim 3, wherein the first and second guide sections are designed as arcuate guide slots having substantially the same radius of curvature.

5. A handheld photographic device according to claim 4, wherein the guide groove is designed as a stepped groove having different inner diameters, wherein a stepped guide having different outer diameters is fixedly attached to the second swinging member, wherein the outer diameters of the stepped guide and the inner diameter of the guide groove are adapted such that the stepped guides are each in contact fit to the stepped groove having different inner diameters substantially without a gap.

6. The handheld photographic apparatus of claim 1, further comprising a motor operatively connected to the second swinging member, wherein the motor is positioned on the handheld chassis adjacent the first stabilizing device and is configured to vertically displace the second swinging member and the camera.

7. The handheld photographic apparatus of claim 6, wherein the motor has an output portion disposed eccentrically with respect to a motor axis, and the second swinging member has a guide slot through which the output portion is inserted, so as to convert rotation of the output portion about the motor axis into swinging motion of the second swinging member.

8. The handheld photographic apparatus of claim 6 or 7, further provided with a control device electrically connected to the motor, the control device being configured to control the operation of the motor based on camera attitude information measured by the attitude sensor to hold the camera in a vertically determined position.

9. The handheld photographic apparatus of any one of claims 1 to 7, wherein the gravity balance member comprises a coil spring coiled within the housing, one end of the coil spring being coupled to the housing and the other end of the coil spring being coupled to a shaft fixedly connected to the first swinging member such that the coil spring is wound or unwound with the rotation of the first swinging member.

10. The handheld photographic apparatus of claim 9, wherein the housing is latchable at different angular positions relative to the handheld chassis to adjust the pre-tension of the coil spring via rotation and latching of the housing.