CN110805817B - Underlying suspension type three-degree-of-freedom mobile phone shooting stabilizer based on rough and fine separation principle - Google Patents

Abstract

The invention discloses a bottom suspension type three-degree-of-freedom mobile phone shooting stabilizer based on a rough and fine separation principle. The circuit part is a gravity center calculating and adjusting module consisting of a through type 20 motor, mpu6050 and 8451 controlled by stm 32. The gravity center of the stabilizer can be calculated by the return value of the sensor when different mobile phones are assembled, and the gravity center position is adjusted by the stepping motor, so that the stable effect is achieved. The mechanical part of the invention is based on the principle of pure mechanical Steiner, has simple electric control and good mechanical performance, has the advantages of simple adjustment of gravity center, accuracy and high efficiency compared with a pure mechanical stabilizer, combines the advantages of simple operation of the pure electric triaxial stabilizer and the shooting style of the pure mechanical stabilizer, has simple structure, is convenient to carry and assemble, can realize the accurate adjustment of the position of the mobile phone, and automatically realizes the adjustment process.

Description

Underlying suspension type three-degree-of-freedom mobile phone shooting stabilizer based on rough and fine separation principle

Technical Field

The invention relates to the technical field of mobile phone shooting equipment, in particular to a bottom suspension type three-degree-of-freedom mobile phone shooting stabilizer based on a rough and fine separation principle.

Background

The existing stabilizers are mainly divided into two types, one type is a purely mechanical Steiner type stabilizer, and the core of the stabilizer is a 3-axis universal joint and a manual gravity center adjusting system; the other type is an electrically controlled 3-axis stabilizer, and the core of the stabilizer is the calculation and compensation of the pose of a 3-axis mechanical arm and a sensor. The Steiner invention was a hand-held purely mechanical photographic stabilizer in the last 70 th century and has been widely used in many movies and photographic scenes. The main problems with the current stanenitancon are:

1. stennikang is mainly applied to camera shooting and is not actually applied to mobile phone shooting.

2. The multifunctional vest is mainly designed for shooting movies, and is high in specialty and heavy in volume, so that the multifunctional vest is poor in portability, is often used in cooperation with a matched vest, and has high requirements for experience of photographers.

3. Much heavier than a typical hand-held 3-axis stabilizer, and a cumbersome process of center of gravity adjustment.

With the progress and development of the times, people cannot meet the requirements of purely mechanical stabilizers, and meanwhile, people have higher requirements on the portability and the stability of the stabilizers, so that the electric control 3-axis stabilizer is born, is widely applied to holder, aerial photography and smartphone photography, and is greatly convenient for people to shoot. However, although the 3-axis stabilizer has a good stability augmentation effect in shooting, the current 3-axis stabilizer mainly has the following problems:

1. because of the cloud platform control and the brushless motor that use, the cost is higher, and control is complicated.

2. Because 3 the volume of axle arms is generally great, the volume is not concentrated on the axial, can not well satisfy people to the requirement of portability.

3. The number of the motors is large, and meanwhile, in order to ensure proper use weight, the endurance is generally poor.

Disclosure of Invention

The invention aims to provide a lower suspension type three-degree-of-freedom mobile phone shooting stabilizer based on a rough-fine separation principle, which can keep the position of a mobile phone static, so that the relative position and posture of the mobile phone can not be influenced by holding the stabilizer by hand, and the stabilizer has a simple structure, is convenient to carry and assemble, can realize accurate adjustment of the position of the mobile phone, and can automatically realize the adjustment process.

The embodiment of the invention is realized by the following steps:

underlying suspension type three-degree-of-freedom mobile phone shooting stabilizer based on rough and fine separation principle comprises: the mobile phone support comprises a clamping part, a connecting part and an adjusting part, wherein the connecting part comprises a connecting main body, a connecting aluminum plate and a connecting rolling bearing, and the adjusting part comprises an adjusting main body, a stepping motor, a threaded rod and a balancing weight; u type universal joint is the U-shaped structure, handheld handle is connected to "U-shaped" bottom of U-shaped structure, connect the interior concave department of U type structure is gone into to the main part card, and U type universal joint connects the both sides at the main part of connection through connecting aluminum plate and connecting antifriction bearing, U type universal joint is rotatable for connecting the main part through connecting antifriction bearing, hold assembly has the groove of placing the cell-phone, hold assembly articulates to the top of connecting the main part, the bottom of connecting the main part is connected to the regulation main part, step motor sets up in adjusting the main part, step motor and balancing weight are connected respectively at the bottom both ends in the top of threaded rod, the cell-phone is installed behind the cell phone stand, rotate through step motor drive threaded rod, and adjust cell phone.

In a preferred embodiment of the present invention, the U-shaped universal joint includes a U-shaped joint body, a joint cover, a.

In a preferred embodiment of the present invention, the hand grip further includes a crank, a grip aluminum plate, and a grip rolling bearing, a connection hole connected to the hand grip is disposed at the bottom end of the U-shaped "U" of the U-shaped joint, the joint rolling bearing is disposed in the connection hole, a square counter bore is disposed at the lower end of the crank, the grip rolling bearing is disposed in the square counter bore, the grip aluminum plate is disposed in the square counter bore and is in interference fit with the grip rolling bearing, and the grip rolling bearing and the joint rolling bearing are connected through a shaft.

In a preferred embodiment of the present invention, the shaft is in interference fit with the connecting rolling bearing, the ball rolling bearing and the handle rolling bearing.

In a preferred embodiment of the present invention, the hand grip further includes a grip, a deep groove ball bearing and a tapered roller bearing, the upper end of the crank is provided with a link, the tapered roller bearing is fixed on the link, the deep groove ball bearing is arranged on the top of the tapered roller, and the grip is spliced on the upper end of the crank and wraps the deep groove ball bearing and the tapered roller bearing.

In a preferred embodiment of the invention, the diameters of the deep groove ball bearing, the tapered roller bearing and the link are equal, and the handle sleeve is spliced at the upper end of the crank and clamped with the link so as to prevent the crank from sliding out under the action of gravity.

In a preferred embodiment of the present invention, the grip sleeve includes a first buckle and a second buckle, which are matched with each other, a space matched with the deep groove ball bearing, the tapered roller bearing and the link is provided inside the first buckle and the second buckle, the first buckle and the second buckle are respectively provided with a cylinder and an assembly hole in a protruding manner, the cylinder of the first buckle is inserted into the assembly hole of the second buckle, and the cylinder of the second buckle is inserted into the assembly hole of the first buckle.

In a preferred embodiment of the present invention, the side surface of the cylinder is further provided with barbs, and the fitting holes are tightly fitted with the surface of the cylinder.

In a preferred embodiment of the present invention, the clamping member includes a clamping jaw, the clamping jaw has a slot for being inserted into the mobile phone, a baffle plate with holes is disposed at the top end of the connecting body, a clamping baffle plate matched with the baffle plate with holes is disposed at the bottom end of the clamping jaw, and the clamping baffle plate is provided with a connecting hole and is hinged and fixed with the baffle plate with holes.

In a preferred embodiment of the present invention, the clamping member further includes a locking screw and a locking nut, the adjusting member further includes an adjusting screw and an adjusting nut, the connecting body and the adjusting body are fixedly connected through the adjusting screw and the adjusting nut, the stepping motor is fixed to the adjusting body through the adjusting screw, and the baffle with holes and the clamping baffle are fixed through the locking screw and the locking nut.

The invention has the beneficial effects that:

according to the invention, the mobile phone is fixed by arranging the clamping jaw, the handle is held by hand to translate forwards, backwards, leftwards and rightwards, the stabilizer is enabled to rotate at any position of three reference surfaces through the U-shaped universal joint, the mobile phone of the mobile phone support keeps relatively static, when the stabilizer translates upwards and downwards in the vertical direction, the mobile phone can also keep static relative to a user, and when the position of the gravity center of the whole mobile phone support and the mobile phone and the position of the vertical direction of a plane formed by the intersection of the central lines of two shafts of the U-shaped universal joint are deviated according to sensor data of the mobile phone, the stepping motor drives the threaded rod to drive the counterweight block to move, so that the purpose of adjusting the gravity center of the whole mobile phone support and the whole mobile; the structure can keep the position of the mobile phone static, so that the relative position and the posture of the mobile phone can not be influenced by holding the stabilizer by hand, the stabilizer is simple in structure, convenient to carry and assemble, capable of achieving accurate adjustment of the position of the mobile phone, and capable of achieving automatic adjustment in the adjusting process.

The invention also has the following advantages:

1. the volume of the traditional Stennikang is optimized, the volume is small, the weight is light, the volume distribution is mainly in the axial direction, and the requirement of people on portability is met.

2. The type, the number and the algorithm of the motor are optimized, and compared with a three-axis brushless motor type stabilizer, the motor cost and the control difficulty are greatly saved.

3. The application range is in mobile phones and small cameras, and meanwhile, the gravity center is adjusted by the motor, so that the requirement of the traditional Stennikang on the experience of a user is reduced.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope.

FIG. 1 is a schematic structural view of a stabilizer of the present invention;

FIG. 2 is a schematic view of the structure of the hand grip of the present invention;

FIG. 3 is a schematic view of the structure of the long handle of the hand grip of the present invention;

FIG. 4 is a schematic view of the structure of the grip of the present invention;

FIG. 5 is a schematic structural diagram of a U-shaped gimbal according to the present invention;

FIG. 6 is a schematic view of the connection between the U-shaped gimbal and the handset support of the present invention;

FIG. 7 is a schematic structural diagram of a handset support according to the present invention;

FIG. 8 is a schematic view of the structure of the clamping member of the present invention;

FIG. 9 is a schematic view of the structure of the connecting member of the present invention;

FIG. 10 is a schematic view of the adjusting member of the present invention;

fig. 11 is a schematic view of the internal structure of the regulating member of the present invention.

Icon: 1-a hand-held grip; 2-U type universal joint; 3-a mobile phone support; 11-a crank; 12-holding the sleeve; 13-deep groove ball bearing; 14-tapered roller bearings; 15-handle aluminum plate; 16-grip rolling bearing; 21-U bytes; 22-byte aluminum plate; 23-byte rolling bearings; 24-axis; 31-a clamping member; 32-a connecting member; 33-an adjustment member; 311-a clamping jaw; 312-a screw; 313-a nut; 321-a connecting body; 322-connecting the aluminum plate; 323-connecting a rolling bearing; 331-a regulatory body; 332-a stepper motor; 333-threaded rod; 334-a balancing weight; 335-screws; 336-nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First embodiment

Referring to fig. 1, the present embodiment provides a bottom suspension type three-degree-of-freedom mobile phone photographing stabilizer based on the principle of rough and fine separation, which includes a handheld grip 1 for handheld grip, a U-shaped universal joint 2 and a mobile phone holder 3, where the mobile phone holder 3 includes a clamping component 31, a connecting component 32 and an adjusting component 33, the clamping component 31 includes a clamping jaw 311, a locking screw 312 and a locking nut 313, the connecting component 32 includes a connecting main body 321, a connecting aluminum plate 322 and a connecting rolling bearing 323, and the adjusting component 33 includes an adjusting main body 331, a stepping motor 332, a threaded rod 333, a counterweight 334, an adjusting screw 335 and an adjusting nut 336; u type universal joint 2 is the U-shaped structure, handheld handle 1 is connected to the "U-shaped" bottom of U-shaped structure, handheld handle 1 carries out manual operation, connecting part 32 card goes into the interior concave department of U type structure, clamping part 31 is fixed with the cell-phone clip, adjusting part 33 is fixed connecting part 32 and is carried out flexible regulation, this stabilizer still includes the circuit part, it is the through 20 motor of stm32 control, the focus that mpu6050 and 8451 are constituteed calculates and the adjustment module, this stabilizer can be fixed to self triaxial direction, when handheld handle 1 drives U type universal joint 2 and rotates on the front view reference surface, the relative position and the gesture of clamping part 31 and the cell-phone of centre gripping can not receive handheld handle 1's influence, keep relative stillness with the user, restricted the activity degree of freedom, strengthened the stabilizer steadiness.

Referring to fig. 2, 3 and 4, the hand grip 1 includes a crank 11, a grip 12, a deep groove ball bearing 13, a tapered roller bearing 14, a grip aluminum plate 15 and a grip rolling bearing 16, the crank 11 is bent, the upper end of the crank 11 is in a straight-line long handle shape and is arranged in a vertical direction, the lower end of the crank 11 is in an arc bending shape and is connected to a U-shaped joint 21, the long handle at the upper end of the crank 11 is provided with a link, the tapered roller bearing 14 is fixed on the link, the deep groove ball bearing 13 is arranged on the top of the tapered roller, the grip 12 is spliced on the upper end of the crank 11 and wraps the deep groove ball bearing 13 and the tapered roller bearing 14, the deep groove ball bearing 13 and the tapered roller bearing 14 are both arranged on the link, the tapered roller bearing 14 is arranged on the lower portion, the deep groove ball bearing 13 is arranged on the upper portion, the diameter of the link, the outer diameter, the three parts are connected together to form a larger link which is exactly corresponding to the size of a groove in the holding sleeve 12, so that the two holding sleeves 12 can be exactly spliced on a long handle at the upper part of the crank 11, the holding sleeve 12 is spliced at the upper end of the crank 11 and clamped with the link, the link has the function of preventing the crank 11 from sliding out due to the action of gravity, and the tapered roller bearing 14 is arranged below the deep groove ball bearing 13 and is used for bearing the load in the vertical direction, namely the axial load; the deep groove ball bearing 13 is arranged below the tapered roller bearing 14 and used for reducing radial disturbance and preventing the holding sleeve 12 from shaking when a user holds the holding sleeve 12 to translate the stabilizer back and forth, left and right. Hold cover 12 total two, 12 outside semicylindrical bodies of holding cover, hold cover 12 including two first buckles and the second buckle that match each other, the inside of first buckle and second buckle is provided with deep groove ball bearing 13, tapered roller bearing 14 and link assorted space, first buckle and second buckle are protruding cylinder and the pilot hole of being equipped with relatively respectively, the side of cylinder still is provided with the barb, the side view of pilot hole is "protruding" font, the pilot hole tightly cooperates each other with the surface of cylinder, the pilot hole of second buckle is inserted to the cylinder of first buckle, the pilot hole of first buckle is inserted to the cylinder of second buckle, during the assembly, the small cylinder on 12 will be held the pilot hole according to into, barb on the small cylinder can be automatic stretches into in the inside recess card of pilot hole and dies, form the tight fit.

Referring to fig. 5 and 6, the U-shaped universal joint 2 includes a U-shaped joint 21, a byte aluminum plate 22, a byte rolling bearing 23, and a shaft 24, the U-shaped universal joint 2 is a U-shaped structure, the U-shaped structure has three straight line portions, the inner and outer sides of the three straight line portions of the U-shape are both provided with square counter bores, six points in total, the U-shaped universal joint 2 is connected to both sides of the connecting main body 321 through the connecting aluminum plate 322 and the connecting rolling bearing 323, the U-shaped universal joint 2 is rotatable relative to the connecting main body 321 through the connecting rolling bearing 323, both sides of the connecting main body 321 are respectively provided with the counter bores, the counter bores are communicated through the inside and form through holes, the connecting rolling bearing 323 is installed in the counter bores, the connecting aluminum plate 322 is installed in the counter bores and is in interference fit with the connecting rolling bearing 323, the shaft holes are provided at the positions opposite, the byte aluminum plates 22 are filled in the square counter bores, the square counter bores are in interference fit with the byte aluminum plates 22 respectively, each byte aluminum plate 22 is in interference fit with one byte rolling bearing 23 correspondingly, the byte rolling bearings 23 are in interference fit with the shafts 24, the shafts 24 penetrate through the through holes and the connecting rolling bearings 323 of the connecting main body 321, two ends of each shaft 24 are connected to the byte rolling bearings 23 in the shaft holes of the U bytes 21 respectively, the shafts 24 penetrate through the connecting parts 32 and the U bytes 21, when the handheld grip 1 drives the U bytes 21 to rotate on the front-view reference surface, the relative positions and postures of the mobile phone on the mobile phone support 3 and the mobile phone on the mobile phone support 3 can be free from the influence of the handheld grip 1, and the mobile phone can keep relatively static with; the U-shaped bottom end of the U-shaped joint 21 is provided with a connecting hole connected with the handheld handle 1, the joint rolling bearing 23 is arranged in the connecting hole, the lower end of the crank 11 is provided with a square counter bore, the handle rolling bearing 16 is arranged in the square counter bore, the handle aluminum plate 15 is arranged in the square counter bore and is in interference fit with the handle rolling bearing 16, the handle rolling bearing 16 is connected with the joint rolling bearing 23 through a shaft 24, the shaft 24 of the straight line part of the U-shaped bottom of the U-shaped universal joint 2 is in interference fit with the handle rolling bearing 16 of the handheld handle 1, when the handheld handle 1 rotates on a front-view reference surface, the relative positions and postures of the U-shaped universal joint 2, the mobile phone support 3 and a mobile phone on the mobile phone support 3 can not be influenced by the handheld handle 1.

Referring to fig. 7 and 8, the mobile phone holder 3 includes a clamping part 31, a connecting part 32 and an adjusting part 33 connected in sequence, the clamping part 31 has a slot for placing the mobile phone, the clamping part 31 is used for clamping the mobile phone, the clamping part 31 is hinged to the top end of the connecting body 321, the bottom end of the connecting body 321 is connected to the adjusting body 331, the clamping jaw 311 has a slot for clamping the mobile phone, the top end of the connecting body 321 is provided with a perforated baffle, the bottom end of the clamping jaw 311 is provided with a clamping baffle matched with the perforated baffle, the clamping baffle is provided with a connecting hole and is hinged and fixed with the perforated baffle, the two clamping baffles extend into gaps of three perforated baffles extending out of the top of the connecting part 32 and are fixed through the holes by using a locking screw 312 and a locking.

Referring to fig. 9, the connecting body 321 of the connecting member 32 is formed by two cube-shaped structures with different side lengths, a big cube is located at the upper end, three raised perforated baffles are arranged at the top of the big cube, counter bores are respectively arranged at the left side and the right side of the big cube and used for placing and connecting an aluminum plate 322 and a connecting rolling bearing 323, the lower end of the big cube is a small cube, four through holes are arranged on the small cube, the small cube penetrates through the surfaces of the left side and the right side and is fixedly connected with the adjusting body 331 through the through holes by an adjusting screw 335 and an adjusting nut 336, and the connecting body 321 is used for connecting the clamping.

Referring to fig. 10, the adjusting body 331 of the adjusting member 33 is rectangular, the adjusting body 331 is hollow and has an open top, four through holes are respectively formed at the upper ends of the left and right sides of the adjusting body 331, the through holes correspond to the four through holes at the lower end of the connecting body 321, the locking screws 312 sequentially pass through the through holes at the lower end of the connecting body 321 and the upper end of the adjusting body 331, and are tightened by the locking nuts 313, so that the adjusting body 331 can be fixed at the lower end of the connecting body 321 in a matching manner; the bottom surface center of adjusting main part 331 has a hole with the same size of threaded rod 333 diameter, the bottom surface four corners department of adjusting main part 331 is equipped with four less holes, this hole is used for fixed step motor 332, step motor 332 is the cuboid, arranges the bottom in adjusting main part 331 in, the center of step motor 332 and four corners are equipped with the through-hole corresponding with adjusting main part 331 bottom surface respectively, the hole of the four corners department of step motor 332 is used for fixed motor, the hole at center is interlock mutually with threaded rod 333.

Referring to fig. 11, a screw rod 333 passes through the center of the stepping motor 332 and the through hole of the center of the bottom end of the adjustment body 331, the upper end is positioned inside the adjusting part 33, the lower end extends out of the adjusting part 33, the bottom end is provided with a balancing weight 334, the mobile phone adjusting device is used for adjusting the whole gravity center of a mobile phone support 3, a balancing weight 334 is fixed at the bottom end of a threaded rod 333 by a nut, the gravity center of the mobile phone support 3 moves up and down by driving the threaded rod 333 through a stepping motor 332, the threaded rod 333 drives the balancing weight 334 to move up and down, a connecting main body 321 and an adjusting main body 331 are fixedly connected through an adjusting screw 335 and an adjusting nut 336, the stepping motor 332 is fixed on the adjusting main body 331 through an adjusting screw 335, the top end and the bottom end of the threaded rod 333 are respectively connected with the stepping motor 332 and the balancing weight, the screw rod 333 is driven to rotate by the stepping motor 332, so that the gravity center and the height of the mobile phone support 3 are adjusted; by adopting the design and the assembly mode, the gravity centers of the mobile phone support 3 and the mobile phone clamped by the mobile phone support can be on a vertical line, so that the gravity center of the mobile phone support 3 and the whole mobile phone can be adjusted by adjusting the position of the balancing weight 334 in the vertical direction through the driving motor.

By means of a mechanical method and through design and assembly of the handheld handle 1 and the U-shaped universal joint 2, when a user holds the handle of the stabilizer to rotate on any one of three reference surfaces, the mobile phone on the mobile phone support 3 can keep still relative to the user. Meanwhile, when the stabilizer translates up and down in the vertical direction, the mobile phone can also keep still relative to the user. The U-shaped universal joint 2 has the advantages that the gravity centers of the mobile phone and the mobile phone support 3 are limited on a vertical line in a limited three-dimensional space, and compared with a traditional three-axis stabilizer and a Steiner stabilizer, the space in the horizontal direction is greatly reduced. In order to ensure that the mobile phone can keep relatively static when the stabilizer translates in the front-back direction and the left-right direction, the center of gravity of the whole mobile phone support 3 and the mobile phone clamped on the mobile phone support 3 needs to be kept on a plane formed by the intersection of the central lines of the two shafts 24 of the U-shaped universal joint 2.

The using process of the embodiment is as follows:

in order to keep stable shooting, the stabilizer needs to be debugged before being used, a user needs to put the mobile phone on the mobile phone support 3 and clamp and fix the mobile phone by the clamping jaw 311 before debugging, when the user holds the grip 1 to translate the stabilizer back and forth or left and right, a sensor arranged on the mobile phone can transmit corresponding acceleration and angular acceleration data to a processor, the processor calculates the gravity center position of the whole mobile phone support 3 and the mobile phone after analysis and compares the gravity center position with the position in the vertical direction of a plane formed by the intersection of the center lines of the two shafts 24 of the U-shaped universal joint 2 recorded in advance, and then sends an instruction to enable the stepping motor 332 to drive the threaded rod 333 to drive the counterweight 334 to move, so that the aim of adjusting the gravity center of the whole mobile phone support 3 and the whole mobile phone is achieved. The debugging may be repeated to improve accuracy.

The most ideal state of the stabilizer is that the gravity centers of the mobile phone support 3 and the mobile phone are adjusted at the point where the three lines of the central lines of the two shafts 24 of the U-shaped universal joint 2 and the central line of the handle meet, if the central line of the handle is called as the Z axis, the gravity centers of the mobile phone support 3 and the mobile phone are not necessarily on the Z axis due to errors caused by assembly, and a certain deviation exists, so that the mobile phone can shake when the stabilizer translates up and down. But because the speed of the up-and-down translation is slower than the moving speed in other directions when the device is used for daily shooting and the stabilizing effect of the self-weight of the stabilizer, the shaking caused by the error can be ignored.

In summary, in the embodiment of the invention, the mobile phone is fixed by the clamping jaw, the handle is held by the hand to move horizontally back and forth and left and right, the stabilizer is enabled to rotate at any position of three reference surfaces through the U-shaped universal joint, the mobile phone of the mobile phone support keeps relatively static, when the stabilizer moves vertically up and down, the mobile phone can also keep static relative to a user, and when the position of the gravity center of the whole mobile phone support and the mobile phone is calculated according to the data of the sensor of the mobile phone and the position of the vertical direction of a plane formed by the intersection of the central lines of two shafts of the U-shaped universal joint is deviated, the stepping motor drives the threaded rod to drive the counterweight block to move, so that the purpose of adjusting the gravity center of the whole mobile phone support and the mobile; the structure can keep the position of the mobile phone static, so that the relative position and the posture of the mobile phone can not be influenced by holding the stabilizer by hand, the stabilizer is simple in structure, convenient to carry and assemble, capable of achieving accurate adjustment of the position of the mobile phone, and capable of achieving automatic adjustment in the adjusting process.

This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.

Claims (8)

1. Underlying suspension type three-degree-of-freedom mobile phone shooting stabilizer based on rough and fine separation principle is characterized by comprising the following components: the mobile phone support comprises a clamping component, a connecting component and an adjusting component, wherein the connecting component comprises a connecting main body, a connecting aluminum plate and a connecting rolling bearing, and the adjusting component comprises an adjusting main body, a stepping motor, a threaded rod and a balancing weight; the U-shaped universal joint is of a U-shaped structure, the handheld handle is connected to the U-shaped bottom end of the U-shaped structure, the connecting main body is clamped in the concave part of the U-shaped structure, the U-shaped universal joint is connected to two sides of the connecting main body through a connecting aluminum plate and a connecting rolling bearing, the U-shaped universal joint can rotate relative to the connecting main body through the connecting rolling bearing, the clamping part is provided with a groove for placing a mobile phone, the clamping part is hinged to the top end of the connecting main body, the bottom end of the connecting main body is connected to the adjusting main body, the stepping motor is arranged in the adjusting main body, the top end and the bottom end of the threaded rod are respectively connected with the stepping motor and the balancing weight, and the mobile phone is installed behind the mobile phone support; the hand-held grip comprises a crank, a grip sleeve, a deep groove ball bearing, a tapered roller bearing, a grip aluminum plate and a grip rolling bearing, wherein the crank is in a zigzag bending shape, the upper end of the crank is in a long handle shape of a straight line segment and is arranged in the vertical direction, the lower end of the crank is in an arc bending shape and is connected to a U-shaped segment, the long handle at the upper end of the crank is provided with a link, the tapered roller bearing is fixed on the link, the deep groove ball bearing is arranged at the top of the tapered roller, the grip sleeve is spliced at the upper end of the crank and wraps the deep groove ball bearing and the tapered roller bearing, the deep groove ball bearing and the tapered roller bearing are arranged on the link, the tapered roller bearing is arranged below the deep groove ball bearing, the diameter of the link, the outer diameter of the deep groove ball bearing and the outer diameter of the tapered roller bearing are equal, the deep, the two holding sleeves can be just spliced on the long handle at the upper part of the crank, the holding sleeves are spliced at the upper end of the crank and clamped with the link, the link has the function of preventing the crank from sliding out due to the action of gravity, and the tapered roller bearing is arranged below the deep groove ball bearing and used for bearing the load in the vertical direction, namely the axial load; the deep groove ball bearing is arranged below the tapered roller bearing and used for reducing radial disturbance and preventing the holding sleeve from shaking when the holding sleeve is held by a user and translates the stabilizer back and forth and left and right.

2. The bottom suspension type three-degree-of-freedom mobile phone photographing stabilizer based on the rough and fine separation principle as claimed in claim 1, wherein the U-shaped universal joint comprises a U-shaped joint, a byte aluminum plate, a byte rolling bearing and a shaft, counterbores are respectively arranged on two sides of the connecting main body, the counterbores are communicated with each other through the inside and form through holes, the connecting rolling bearing is installed in the counterbores, the connecting aluminum plate is arranged in the counterbores and in interference fit with the connecting rolling bearing, shaft holes are arranged at positions opposite to the counterbores, the byte rolling bearing is installed in the shaft holes, the byte aluminum plate is arranged in the shaft holes and in interference fit with the byte rolling bearing, and the shaft penetrates through the through holes and two ends of the shaft holes are respectively connected.

3. The bottom suspension type three-degree-of-freedom mobile phone shooting stabilizer based on the rough and fine separation principle as claimed in claim 2, wherein the handheld handle further comprises a crank, a handle aluminum plate and a handle rolling bearing, the U-shaped bottom end of the U byte is provided with a connecting hole connected with the handheld handle, the byte rolling bearing is arranged in the connecting hole, the lower end of the crank is provided with a square counter bore, the handle rolling bearing is arranged in the square counter bore, the handle aluminum plate is arranged in the square counter bore and in interference fit with the handle rolling bearing, and the handle rolling bearing and the byte rolling bearing are connected through a shaft.

4. The undermount suspension type three-degree-of-freedom mobile phone photographing stabilizer based on the rough and fine separation principle as claimed in claim 3, wherein the shaft is in interference fit with a connecting rolling bearing, a byte rolling bearing and a handle rolling bearing respectively.

5. The bottom-mounted three-degree-of-freedom mobile phone photographing stabilizer based on the rough and fine separation principle as claimed in claim 4, wherein the grip sleeve comprises a first buckle and a second buckle which are matched with each other, a space matched with the deep groove ball bearing, the tapered roller bearing and the link is arranged inside the first buckle and the second buckle, the first buckle and the second buckle are respectively convexly provided with a cylinder and an assembling hole, the cylinder of the first buckle is inserted into the assembling hole of the second buckle, and the cylinder of the second buckle is inserted into the assembling hole of the first buckle.

6. The bottom-mounted three-degree-of-freedom mobile phone photographing stabilizer based on the rough and fine separation principle as claimed in claim 5, wherein the side surface of the cylinder is further provided with barbs, and the assembly holes are tightly matched with the surface of the cylinder.

7. The bottom-mounted three-degree-of-freedom mobile phone photographing stabilizer based on the rough and fine separation principle as claimed in claim 1, wherein the clamping part comprises a clamping jaw, the clamping jaw is provided with a slot for clamping the mobile phone, a perforated baffle is arranged at the top end of the connecting body, a clamping baffle matched with the perforated baffle is arranged at the bottom end of the clamping jaw, and the clamping baffle is provided with a connecting hole and is hinged and fixed with the perforated baffle.

8. The bottom-mounted three-degree-of-freedom mobile phone photographing stabilizer based on the rough and fine separation principle as claimed in claim 7, wherein the clamping component further comprises a locking screw and a locking nut, the adjusting component further comprises an adjusting screw and an adjusting nut, the connecting body and the adjusting body are fixedly connected through the adjusting screw and the adjusting nut, the stepping motor is fixed to the adjusting body through the adjusting screw, and the baffle with the hole and the clamping baffle are fixed through the locking screw and the locking nut.

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