CN210662231U

CN210662231U - Linking arm beta structure and stabilizer

Info

Publication number: CN210662231U
Application number: CN201920924087.XU
Authority: CN
Inventors: 陆利芬
Original assignee: Guilin Zhishen Information Technology Co Ltd
Current assignee: Guilin Zhishen Information Technology Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-06-02
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a connecting arm folding structure and a stabilizer, wherein, the connecting arm comprises a rotating section and a fixed section which are rotationally connected through a rotating shaft and is used for keeping the connecting arm in a clamping part of an unfolding or folding state; the clamping part comprises a moving part positioned at the fixed section and a fixed part positioned at the rotating section, the moving part is provided with a bulge, and the fixed part is provided with two inclined planes matched with the bulge; the fixed section is also provided with an elastic piece for applying the gliding elasticity of the bulge along the inclined plane; the end that fixed section and rotation section are connected is equipped with first limit structure and second limit structure, is used for limiting the arch respectively and breaks away from the inclined plane. The utility model discloses a linking arm beta structure and stabilizer has realized through two rotation directions of restriction that the linking arm does not have the clearance all the time when being in folding or expansion state to at locking or unblock in-process easy operation, the inclined plane is lower with bellied machining precision requirement, and wearing and tearing are less in the use.

Description

Linking arm beta structure and stabilizer

Technical Field

The utility model relates to a stabilizer structure especially relates to a linking arm beta structure and stabilizer.

Background

Along with shoot the stabilizer, shoot the continuous development of cloud platform, the user also improves gradually to the shooting of stabilizer and cloud platform, accomodate the requirement. In the prior art, the main technical means for folding and storing the stabilizer is to fold a handle of the stabilizer and a connecting arm of the stabilizer. In the folding structure of the connecting arm of the stabilizer, a mode that the rotating shaft is matched with the locking structure is adopted, and in the operation process, a user needs to unlock the locking structure firstly, then rotate the two sections of connecting arms to an ideal position along the rotating shaft, and finally lock the locking structure, so that the operation process is complicated, and the user experience is poor; and the locking structure used at present or after long-term use can have gaps, which leads to the locking structure to have virtual positions.

In the prior art, chinese patent CN107454931A discloses a pan/tilt head assembly and a handheld pan/tilt head, which includes a first rotation shaft part and a first connecting arm, wherein one end of the first rotation shaft part is rotatably connected to a first connecting device, and the other end of the first rotation shaft part is connected to a second connecting device through the first connecting arm; first pivot portion still with first linking arm pin joint, thereby first pivot portion can be relative first linking arm rotates, makes first pivot portion with first linking arm switches between the state of coincide each other and the state of relative separation, and then the cloud platform subassembly switches between fold condition and expansion state. Make it maintain in stable fold condition or expansion state through the lock solid structure, current stabilizer fold structure complex operation and can appear the virtual position after long-term the use and influence user experience. Chinese patent CN108980587A discloses a handheld pan/tilt head, which comprises a handheld portion, a pan/tilt assembly and a clamping portion, wherein the pan/tilt assembly is connected between the handheld portion and the clamping portion, the clamping portion is used for clamping a shooting device, the pan/tilt assembly is used for adjusting the position of the clamping portion to change the shooting angle of the shooting device, the pan/tilt assembly comprises a first rotating shaft motor rotatably connected with the handheld portion and a first connecting arm connected with the first rotating shaft motor, the first rotating shaft motor can rotate relative to the first connecting arm, so as to drive the handheld portion to switch between a folded state toward the clamping portion and an unfolded state away from the clamping portion; this locking mechanism is one or several kinds in screw thread locking, eccentric wheel locking, inclined plane locking, four-bar linkage locking, buckle locking etc. and above-mentioned locking mechanism is through long-time the use, and the clearance all can appear in the part of mutually supporting, leads to appearing the virtual position after folding, and two parts can take place to rock after the locking. In addition, among the prior art, through recess and protruding matched with face between the relative rotating part for the relative rotation of restriction two parts, but the cooperation mode of face contact just requires the machining precision of two parts looks mating surfaces higher, the angle, length etc. that form between every face and its adapting unit, machining's error just can lead to recess and bellied cooperation structure to appear the clearance, the virtual position appears after folding, and recess and bellied cooperation structure need exert great external force at the in-process of locking or unblock, use for a long time and cause spare part wearing and tearing.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a stabilizer linking arm beta structure aims at solving the folding, the virtual position appears in locking structure of current stabilizer, and operation process is more loaded down with trivial details, and user experience is poor, the higher scheduling problem of machining precision requirement.

The utility model discloses take following technical scheme to realize above-mentioned purpose:

a connecting arm folding structure comprises a rotating section and a fixing section which are rotatably connected through a rotating shaft, and a clamping part for keeping the connecting arm in an unfolded or folded state; the clamping part comprises a moving part positioned at the fixed section and a fixed part positioned at the rotating section, the moving part is provided with a bulge, and the fixed part is provided with two inclined planes matched with the bulge; the fixed section is also provided with an elastic piece for applying the gliding elasticity of the bulge along the inclined plane; the end that fixed section and rotation section are connected is equipped with first limit structure and second limit structure, is used for limiting the arch respectively and breaks away from the inclined plane.

In the technical scheme, the number of the inclined planes matched with the protrusions is two, namely one inclined plane is matched with the protrusions to enable the connecting arm to be in an unfolded state, the inclined plane enabling the connecting arm to be in a folded state is matched with the protrusions, and the positions of the two inclined planes are set according to specific folding storage shapes and structures; the connecting arm is unfolded or stored by rotating the rotating section and the fixing section along the rotating shaft, and when the connecting arm is rotated to a specified unfolding or folding position, the protrusion slides downwards along the inclined plane, wherein the first limiting structure and the second limiting structure are respectively used for limiting the protrusion to be separated from the inclined plane, namely, the rotating section is limited to rotate towards a first direction; under the effect of elastic force of the elastic piece, the protrusion is supported by the supporting force of the inclined plane, the supporting force limits the rotation section to rotate along the second direction, and the protrusion is limited by the force limiting the rotation in two directions, so that the connecting arm is in a folding or unfolding state without a gap all the time, the operation is simple in the locking or unlocking process, the processing precision requirements of the protrusion and the inclined plane are low, and the abrasion is small in the using process.

A connecting arm folding structure comprises a rotating section and a fixing section which are rotatably connected through a rotating shaft, and a clamping part for keeping the connecting arm in an unfolded or folded state; the clamping part comprises a moving part positioned at the fixed section and a fixed part positioned at the rotating section, the fixed part is provided with two bulges, and the moving part is provided with two inclined planes matched with the bulges; the fixed section is also provided with an elastic piece for applying the elastic force of the protrusion sliding upwards along the inclined plane; the end that fixed section and rotation section are connected is equipped with first limit structure and second limit structure, is used for limiting the arch respectively and breaks away from the inclined plane.

In the technical scheme, the number of the protrusions positioned on the fixing part is two, namely one of the protrusions is matched with the inclined plane to enable the connecting arm to be in an unfolded state, the connecting device also comprises a protrusion which enables the connecting arm to be in a folded state and is matched with the inclined plane, and the positions of the protrusions are set according to the specific folding and accommodating shape and structure; the connecting arm is unfolded or stored by rotating the rotating section and the fixing section along the rotating shaft, when the connecting arm is rotated to a specified unfolding or folding position, the protrusion slides upwards along the inclined plane, and the first limiting structure and the second limiting structure are respectively used for limiting the protrusion to slide to be separated from the inclined plane, namely limiting the rotating section to rotate towards a first direction; under the effect of elastic force of the elastic piece, the protrusion is supported by the supporting force of the inclined plane, the supporting force limits the rotation section to rotate along the second direction, and the protrusion is limited by the force limiting the rotation in two directions, so that the connecting arm is in a folding or unfolding state without a gap all the time, the operation is simple in the locking or unlocking process, the processing precision requirements of the protrusion and the inclined plane are low, and the abrasion is small in the using process.

The further technical scheme is that the end faces of the fixed section and the rotating section are abutted to form a first limiting structure; the end surface of the fixed section is connected with one side surface of the fixed section through an arc-shaped surface; the rotating section rotates to the side face of the fixed section along the arc-shaped face, and the end face of the rotating section is abutted to the side face of the fixed section to form a second limiting structure. In the technical scheme, the end faces of the fixed section and the rotating section are in contact, namely, the rotating angle of the rotating section along the rotating shaft in the first direction is limited; the rotating section rotates to the side face of the fixed section along the arc-shaped surface in the second direction and is in contact with the side face of the fixed section, namely the rotating angle of the rotating section along the rotating shaft in the second direction is limited; this scheme has utilized the inherent structure of linking arm to realize two direction turned angle's restriction, need not to add the part.

The further technical scheme is that the elastic element is a spring, the connecting arm further comprises a cover plate, and the cover plate is located above the moving element and is connected with the fixed section through a screw; one end of the spring is propped against the cover plate, and the other end of the spring is propped against the movable piece.

The stabilizer with the connecting arm folding structure comprises at least two motors, and two adjacent motors are connected through the connecting arm with the folding structure.

The utility model has the advantages that:

the utility model provides a pair of linking arm beta structure and stabilizer, through the cooperation of inclined plane and elastic component, has restricted the rotation of a direction of rotation section, has restricted the rotation of another direction of rotation section through limit structure again, and the restriction of two rotation directions has realized that the linking arm does not have the clearance all the time when being in folding or expansion state to at locking or unblock in-process easy operation, the inclined plane is lower with bellied machining precision requirement, and wearing and tearing are less in the use.

Drawings

FIG. 1 is a diagram: a linking arm beta structure's schematic diagram.

FIG. 2 is a diagram of: a linking arm beta structure's rear view.

FIG. 3 is a diagram of: a linking arm beta structure arch and inclined plane complex schematic structure.

FIG. 4 is a diagram of: a linking arm beta structure rotates section and is equipped with bellied schematic structure diagram.

FIG. 5 is a diagram: take moving part structural schematic on inclined plane.

FIG. 6 is a diagram of: a structure schematic with linking arm beta structure stabilizer fold condition.

FIG. 7 is a diagram of: a structure schematic with linking arm beta structure stabilizer expandes state.

In the figure:

1. a connecting arm; 11. a rotating section; 111. the end face of the rotating section; 12. a fixed section; 120. a hole; 121. the end face of the fixed section; 122. the side surface of the fixed section; 123. an arc-shaped surface; 13. a cover plate; 131. a screw; 2. a movable member; 21. a protrusion; 211. a first protrusion; 212. a second protrusion; 3. a rotating shaft; 4. a fixing member; 41. a bevel; 411. a first inclined plane; 412. a second inclined plane; 5. a spring.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 7 and the embodiments, and features in the following embodiments and examples may be combined with each other without conflict.

The present embodiment provides a connecting arm folding structure, as shown in fig. 1 to 3, 6 and 7, the connecting arm 1 includes a rotating section 11 and a fixed section 12, and the rotating section 11 and the fixed section 12 are rotatably connected by a rotating shaft 3; one end of the rotating section 11 matched with one end of the fixed section 12 is provided with a clamping part; the engaging portion includes a moving member 2 and a fixed member 4, a protrusion 21 is disposed on an outer side of one end of the moving member 2, the fixed member 4 has two inclined surfaces 41 (a first inclined surface 411 and a second inclined surface 412 are located on the rotating section 11 and are matched with the protrusion 11), and the fixed section 12 further has a spring 5 for applying an elastic force of the protrusion 21 sliding downward along the two inclined surfaces 41;

the elastic element of the embodiment adopts a spring 5, the fixed section 12 is provided with a hole 120 for accommodating the movable element 2 and the protrusion 21, and the protrusion 21 passes through the hole 121 to be matched with the inclined surface 41; a cover plate 13 connected with the bulge 21 through a screw 131 is arranged above the bulge 21, one end of the spring 5 is propped against the cover plate 13, the other end of the spring 5 is propped against the top of the movable element 2, and the movable element 2 is extruded through the elastic force of the spring 5, so that the bulge 21 slides downwards along the inclined surface 41, namely, the rotation of the rotating section 11 in the opposite direction is limited; in other embodiments or practical applications, the elastic element can be replaced by an elastic rubber block, a tension spring, a plate spring, etc., and the resistance function of the spring 5 in the present embodiment can also be realized; the cover plate 13 is added in this embodiment for convenience of assembly, and in some embodiments, the cover plate 13 is an unnecessary component, and the movable member 2, the spring 5, the plate spring or the elastic rubber block can be installed in the middle of one end connected with the fixed section 12 and the rotating section 11, one end of the elastic component abuts against the inner wall of the fixed section 12, and the other end abuts against the top of the movable member 2. In some embodiments of the tension spring, one end of the tension spring pulls the bottom of the movable member 2, and the other end pulls the inner wall of the corresponding fixed section 12 at the bottom of the protrusion 41;

wherein, one end of the fixed section 12 connected with the rotating section 11 is provided with a first limit structure and a second limit structure which are respectively used for limiting the protrusion 21 from sliding to the disengaging inclined surface 41; specifically, at the initial moment, the rotating section 11 rotates along the first direction until the connecting arm 1 is in the unfolded state (i.e. the fixed section end surface 121 abuts against the rotating section end surface 111), the protrusion 21 slides downwards along the first inclined surface 411, the fixed section end surface 121 abuts against the rotating section end surface 111 to form a first limiting structure for limiting the protrusion 21 to be separated from the first inclined surface 411, the rotating angle of the rotating section 11 along the first direction is limited, i.e. the rotating section 11 is limited to rotate along the first direction, and the first inclined surface 411 provides an upward supporting force for the protrusion 21 under the action of the spring 5, the supporting force includes a component for limiting the rotating section 11 to rotate along the second direction, so that when the connecting arm 1 is in the unfolded state, the connecting arm is limited by the rotation in two directions, and no gap is left when the connecting arm is in the unfolded state; the fixed section end face 121 is connected with one side face of the fixed section end face through the arc-shaped face 123, in the folding process of the connecting arm 1, the rotating section 11 rotates to the fixed section side face 122 along the arc-shaped face 123, the protrusion 21 slides downwards along the second inclined face 412, the rotating section 11 is abutted with the fixed section side face 122 to form a second limiting structure for limiting the protrusion 21 to be separated from the second inclined face 412, the rotating angle of the rotating section 11 along the second direction is limited, namely, the rotating section 11 is limited to rotate along the second direction, the second inclined face 412 provides oblique upward supporting force for the protrusion 21 under the action of the spring 5, the supporting force includes component for limiting the rotating section 11 to rotate along the first direction, therefore, when the connecting arm 1 is in the folding state, the connecting arm is limited by rotation in two directions, and no gap exists all the time when the connecting. In the specific operation process, external force is only required to be applied to the rotating section 11 or the fixed section 12 to enable the rotating section to rotate along the rotating shaft 3, the moving part 2 is driven to extrude the spring 5, and the protrusion 21 rotates out of the top end of the inclined plane 41; when the movable member 2 rotates to a predetermined position, the movable member slides down along the other inclined surface 41 under the elastic force of the spring 5, and the rotation angle of the movable member is limited by the limiting structure, so that the limitation of bidirectional rotation is formed, and the folding structure of the embodiment is simple to operate.

The structure of this embodiment realizes that linking arm 1 is in the fixed of expansion or fold condition through inclined plane 41 and spring, first limit structure, second limit structure's cooperation, and when arch 21 slided down along inclined plane 41 under the effect of spring 5 elasticity, did not slide to breaking away from inclined plane 41, received first limit structure's effect again, made arch 21 block on inclined plane 41, the effort of two directions has realized that linking arm 1 does not have the clearance all the time when being in fold condition.

In the above embodiment, the shape and the inclination angle of the inclined surface 41 may be determined according to a model of an actual connecting arm or a requirement of an actual folding angle, the shape may be a curved surface, a plane, or the like, and the inclination angle may be determined according to an elastic coefficient of the elastic member, which is not limited herein.

In another embodiment, the position of the protrusion 21 and the inclined surface 41 in the above embodiment of the connecting arm folding structure are interchanged. As shown in fig. 4 and 5, the movable member 2 is provided with two inclined surfaces 41 (i.e., a first inclined surface 411 and a second inclined surface 412), and the number of the protrusions 21 on the fixed member 4 is two (the first protrusion 211 and the second protrusion 212 are located on the rotating section 11 and are matched with the groove 43);

wherein, one end of the fixed section 12 connected with the rotating section 11 is provided with a first limit structure and a second limit structure which are respectively used for limiting the protrusion 21 from sliding to the disengaging inclined surface 41; specifically, at the initial moment, the rotating section 11 rotates along the first direction until the connecting arm 1 is in the unfolded state (i.e., the fixed section end surface 121 abuts against the rotating section end surface 111), the first protrusion 211 slides upwards along the first inclined surface 411, the fixed section end surface 121 abuts against the rotating section end surface 111 to form a first limiting structure, which is used for limiting the first protrusion 211 to be separated from the first inclined surface 411, and limiting the rotating angle of the rotating section 11 along the first direction, i.e., limiting the rotating section 11 to rotate along the first direction, and the first inclined surface 411 provides a downward oblique force to the first protrusion 211 under the action of the spring 5, which includes a component force that limits the rotating section 11 to rotate along the second direction, so that when the connecting arm 1 is in the unfolded state, the connecting arm is limited by the rotation in two directions, and no gap is formed when the connecting arm is in the unfolded state; the fixed section end face 121 is connected with one side face through the arc-shaped face 123, in the folding process of the connecting arm 1, the rotating section 11 rotates to the fixed section side face 122 along the arc-shaped face 123, the second protrusion 212 slides upwards along the second inclined face 412, the rotating section 11 is abutted with the fixed section side face 122 to form a second limiting structure, the second protrusion 212 is used for limiting to be separated from the second inclined face 412, the rotating section 11 is limited in rotating angle along the second direction, namely, the rotating section 11 is limited to rotate along the second direction, the second inclined face 412 gives the second protrusion 212 to generate downward oblique force under the action of the spring 5, the force includes component force for limiting the rotating section 11 to rotate along the first direction, therefore, when the connecting arm 1 is in the folding state, the limiting of rotation in two directions is realized, and no gap exists all the time when the connecting arm 1 is in the folding state.

Another embodiment provides a stabilizer, as shown in fig. 6 and 7, the stabilizer includes the connecting arm 1, the pitch axis motor, the roll axis motor, and the handle in the above embodiments, the handle is connected to the pitch axis motor stator, both ends of the connecting arm 1 are respectively connected to the pitch axis motor rotor and the roll axis motor, and the roll axis motor rotor end is connected to the shooting device. This linking arm 1 includes the beta structure of above-mentioned embodiment, makes things convenient for accomodating of stabilizer, and the volume when reducing the stabilizer and carrying can prevent simultaneously that there is the stabilizing effect of virtual position influence stabilizer when using in the switching.

The above embodiment exemplarily shows the solution for the connection arm between two motors in the two-axis handheld stabilizer, according to other embodiments or practical applications, the foldable structure in the above embodiment can also be used for a three-axis (having a heading axis, a roll axis and a pitch axis, a heading axis motor stator connected to the handle, a first connection arm connected to the heading axis motor rotor and the roll axis motor stator, respectively, a second connection arm connected to the roll axis motor rotor and the pitch axis motor stator, respectively, and the pitch axis motor rotor connected to the photographing apparatus) or a four-axis (having a roll axis, a pitch axis, a heading axis and a vertical shock absorber, a heading axis motor stator connected to the handle, a first connection arm connected to the heading axis motor rotor and the roll axis motor stator, respectively, a second connection arm connected to the roll axis motor rotor and the pitch axis motor stator, and the pitch axis motor rotor connected to the photographing apparatus through the vertical shock absorber arm) stabilizer, for example, a connecting arm between a heading axis motor and a roll axis motor, a connecting arm between a roll axis motor and a pitch axis motor, or a connecting arm between a pitch axis motor and a photographing apparatus; the wing connecting arm can also be used in structures such as an unmanned aerial vehicle wing connecting arm.

The utility model provides a pair of linking arm beta structure and stabilizer, cooperation through inclined plane 41 and elastic component has restricted the rotation of 11 directions of rotation section, has restricted the rotation of 11 another directions of rotation section through limit structure again, and the restriction of two rotation directions has realized linking arm 1 and has not had the clearance all the time when folding or expansion state to at locking or unblock in-process easy operation, inclined plane 41 is lower with protruding 21's machining precision requirement, and wearing and tearing are less in the use.

Claims

1. A connecting arm folding structure is characterized in that a connecting arm (1) comprises a rotating section (11) and a fixing section (12) which are rotatably connected through a rotating shaft (3), and a clamping part for keeping the connecting arm (1) in an unfolded or folded state;

the clamping part comprises a moving part (2) positioned at the fixed section (12) and a fixed part (4) positioned at the rotating section (11), the moving part (2) is provided with a bulge (21), and the fixed part (4) is provided with two inclined planes (41) matched with the bulge (21);

the fixed section (12) is also provided with an elastic piece for applying the gliding elasticity of the bulge (21) along the inclined plane;

one end of the fixed section (12) connected with the rotating section (11) is provided with a first limiting structure and a second limiting structure which are respectively used for limiting the protrusion (21) to be separated from the inclined plane (41).

2. A connecting arm folding structure is characterized in that a connecting arm (1) comprises a rotating section (11) and a fixing section (12) which are rotatably connected through a rotating shaft (3), and a clamping part for keeping the connecting arm (1) in an unfolded or folded state;

the clamping part comprises a moving part (2) positioned at the fixed section (12) and a fixed part (4) positioned at the rotating section (11), the fixed part (4) is provided with two bulges (21), and the moving part (2) is provided with two inclined planes (41) matched with the bulges (21);

the fixed section (12) is also provided with an elastic piece for applying the elastic force of the protrusion (21) sliding upwards along the inclined plane;

3. A connecting arm folding structure according to claim 1 or 2, characterized in that said fixed section (12) abuts against the end face of the rotating section (11) to form a first limit structure; the end face (121) of the fixed section is connected with one side face of the fixed section through an arc-shaped face (123); the rotating section (11) rotates to the side face of the fixed section (12) along the arc-shaped face (123), and the end face (111) of the rotating section is abutted against the side face (122) of the fixed section to form a second limiting structure.

4. A connecting arm folding structure according to claim 1 or 2, characterized in that said elastic element is a spring (5), said connecting arm (1) further comprising a cover plate (13), said cover plate (13) being located above the mobile element (2) and being connected to the fixed section (12) by means of screws (131); one end of the spring (5) is propped against the cover plate (13), and the other end of the spring is propped against the movable piece (2).

5. A stabilizer, characterized in that it comprises a connecting arm folding structure according to any one of claims 1 to 2, at least two motors, two adjacent motors being connected by a connecting arm with said folding structure.