CN209860958U - Lifting device suitable for electronic equipment - Google Patents

Abstract

The utility model relates to a lifting device suitable for electronic equipment, this lifting device sets up in electronic equipment, lifting device includes frame, ultrasonic motor, main shaft carbon-point, elevator and fastening fastener, the stiff end of ultrasonic motor is installed in frame bottom plate lower part, ultrasonic motor working end up with run through the frame bottom plate main shaft carbon-point lower extreme fixed connection, the upper end of main shaft carbon-point is worn to establish in the roof of frame, the outside of main shaft carbon-point is connected with the front portion of elevator through fastening fastener; a camera is fixedly arranged on the lifting block, and the ultrasonic motor works to drive the carbon rod of the main shaft to vibrate so as to realize the lifting of the lifting block and the camera; the utility model discloses an ultrasonic motor drive main shaft carbon-point vibrations, utilize the frictional force between main shaft carbon-point and the fastening fastener, realize will fasten fastener and elevator block intermittent vibration rectilinear movement, stretch out or return the camera to the electronic equipment casing; simple structure, each part is small, and equipment and maintenance are convenient, have good market using value.

Description

Lifting device suitable for electronic equipment

Technical Field

The utility model relates to mechanical equipment technical field especially involves a elevating gear suitable for electronic equipment.

Background

With the improvement of the design and manufacturing technology of intelligent electronic devices (mobile phones, tablet computers, etc.), mobile phones with high screen ratio quickly occupy the market and become an important development direction. Along with the continuous release of the full screen mobile phone, the setting position and the starting mode of the camera are more and more valued by related designers. Because the mobile phone camera can not penetrate through the display screen to take a picture, namely the camera must be designed in the area outside the display screen, and the increase of the screen occupation ratio means that the space for installing the camera around the mobile phone is further reduced, therefore, the mobile phone camera with high screen occupation ratio needs to be hidden at the back of the display screen and is contracted in the shell/body of the mobile phone in a normal state, and the camera stretches out of the screen to take a picture when needing to be used. Due to the limitation of the space of the mobile phone, the installation position, the transmission mode, the volume and the like of the camera are all important considerations.

For example, patent No. CN109257467A entitled as an invention of a camera telescoping device and a mobile phone, wherein the main technical solution is to rotate forward by a driving mechanism and a transmission mechanism, to drive a lead screw to rotate forward, so that a nut and the lead screw are engaged and driven to ascend, and the camera is driven to extend out of the mobile phone shell; the driving mechanism and the transmission mechanism rotate reversely to drive the lead screw to rotate reversely, so that the nut and the lead screw are meshed for transmission and descend to drive the camera to retract into the mobile phone shell, and the camera is stretched relative to the mobile phone shell; however, the driving structure and the transmission mechanism have complex structures and large occupied space, and the related screw rod needs to be jacked up and added with lubricating oil, so that the use and the maintenance are inconvenient; although the market also has the problem that the ultrasonic motor and the motor spindle drive the sliding block to drive the camera to extend out of or return back to the shell of the mobile phone, the sliding block is displaced relative to the motor spindle due to the vibration characteristic of the ultrasonic motor, so that the prior art has defects and needs to be improved.

Disclosure of Invention

The utility model provides a elevating gear suitable for electronic equipment, the above-mentioned problem of solution.

In order to solve the above problem, the utility model provides a technical scheme as follows: a lifting device suitable for electronic equipment is arranged in the electronic equipment and comprises a frame, an ultrasonic motor, a spindle carbon rod, a lifting block and a fastening clamping piece, wherein the fixed end of the ultrasonic motor is installed at the lower part of a bottom plate of the frame, the working end of the ultrasonic motor faces upwards and is fixedly connected with the lower end of the spindle carbon rod penetrating through the bottom plate of the frame, the upper end of the spindle carbon rod is arranged in a top plate of the frame in a penetrating manner, and the outer part of the spindle carbon rod is detachably connected with the front part of the lifting block through the fastening clamping piece; the camera is fixedly installed on the lifting block, and the ultrasonic motor works to drive the carbon rod of the main shaft to vibrate so as to realize the lifting of the lifting block and the camera.

Preferably, the number of the ultrasonic motors and the number of the spindle carbon rods are three; the fastening clamping piece comprises a short elastic piece and a long elastic piece which are clamped at the front side and the rear side of the spindle carbon rod, and a first clamping groove is bent at the position where the front part of the long elastic piece is contacted with the three spindle carbon rods; the left side of the long elastic sheet is matched with the first clamping groove to clamp the carbon rod of the main shaft on the left side, the rear portion of the short elastic sheet is matched with the first clamping groove on the right side of the long elastic sheet to clamp the carbon rods of the other two main shafts, and the fastening clamping piece is fastened to the front portion of the lifting block through two sets of bolt fixing pieces.

Preferably, the fastening clamping piece comprises a second elastic piece and a first elastic piece which are clamped at the front side and the rear side of the spindle carbon rod, the first elastic piece and the second elastic piece are of front-rear symmetrical structures, the positions, in contact with the three spindle carbon rods, of the first elastic piece and the second elastic piece are respectively bent to form a second clamping groove and a third clamping groove, and the first elastic piece clamps the spindle carbon rod through the second clamping groove and the second elastic piece through the third clamping groove and is fastened to the front part of the lifting block through two sets of bolt fixing pieces; and the contact part of the first elastic sheet and the second elastic sheet is subjected to spot welding through a spot welding process.

Preferably, the number of the ultrasonic motors and the number of the spindle carbon rods are two; the fastening clamping piece comprises two elastic pieces III and one elastic piece IV, the front part of the lifting block is provided with a pair of clamping grooves IV for embedding two spindle carbon rods, the front part of the lifting block is positioned between the pair of clamping grooves IV and is also provided with a pair of clamping grooves V which are bilaterally symmetrical, the bent parts of the two elastic pieces III are respectively and correspondingly embedded into the pair of clamping grooves V, the middle parts of the pair of clamping grooves V are respectively provided with an opening I, the pair of clamping grooves V are respectively and correspondingly communicated with the pair of clamping grooves IV through the two openings I, and the convex parts of the two elastic pieces III protrude outwards from the opening I to tightly press the spindle carbon rods on the inner walls of; the left side edge and the right side edge of the elastic sheet IV respectively and correspondingly cover and press the two elastic sheets III in the pair of clamping grooves V, and the middle part of the elastic sheet IV is fastened at the front part of the lifting block through a set of bolt fixing piece; a pair of guide shafts arranged left and right are mounted at the rear part of the frame, and the guide shafts respectively penetrate through the left side and the right side of the rear part of the lifting block.

Preferably, the number of the ultrasonic motors and the number of the spindle carbon rods are two; the fastening clamping piece comprises a left elastic piece and a right elastic piece, a pair of clamping grooves six are formed in the front part of the lifting block corresponding to the two spindle carbon rods, the left elastic piece and the right elastic piece are of central symmetry structures, the left elastic piece and the right elastic piece are correspondingly clamped in the clamping grooves six respectively, the left elastic piece comprises a clamping part and a fixing part, the clamping parts of the left elastic piece and the right elastic piece are correspondingly clamped outside the two spindle carbon rods respectively, and the fixing parts of the left elastic piece and the right elastic piece are fastened to the front part of the lifting block through a set of bolt fixing piece respectively; and the inner side of the clamping groove six and the corresponding positions of the upper end and the lower end of the clamping part are also integrally provided with an extending blocking part for blocking the clamping part of the left elastic sheet and the clamping part of the right elastic sheet from shaking up and down.

Preferably, the fastening clamping piece comprises a fifth elastic piece and a sixth elastic piece which are clamped at the front side and the rear side of the spindle carbon rod, a seventh clamping groove is bent at the position where the front part of the sixth elastic piece is contacted with the spindle carbon rod, the sixth elastic piece is matched with the fifth elastic piece through the seventh clamping groove to clamp the spindle carbon rod, a gasket is clamped between the fifth elastic piece and the sixth elastic piece, and the fifth elastic piece, the gasket and the sixth elastic piece are fastened at the front part of the lifting block through two sets of bolt fixing pieces; a pair of directional guide rods which are arranged left and right are arranged between the upper part and the lower part of the rear side of the frame, and the pair of directional guide rods respectively penetrate through the left side and the right side of the lifting block.

Preferably, the fastening clamping piece comprises a seventh elastic piece and an eighth elastic piece which are clamped at the front side and the rear side of the spindle carbon rod, a clamping groove eighth is bent at the contact position of the eighth elastic piece and the spindle carbon rod, the seventh elastic piece is a thickened elastic piece, the eighth elastic piece is matched with the seventh elastic piece through the clamping groove eighth and clamps the spindle carbon rod and is fastened at the front part of the lifting block through two sets of bolt fixing pieces, and a compression spring is sleeved outside the bolt fixing pieces; the left end and the right end of the elastic piece eight are further integrally provided with extending portions, the left end and the right end of the lifting block are further provided with a pair of second openings, and the extending portions are clamped in the second openings.

Preferably, the fastening clamping piece comprises a spring plate nine and a spring plate ten which are clamped at the front side and the rear side of the spindle carbon rod, a clamping groove ten is bent at the position where the spring plate ten is contacted with the spindle carbon rod, and the spring plate ten is matched with the spring plate nine through the clamping groove ten to clamp the spindle carbon rod and is fastened at the front part of the lifting block through two sets of bolt fixing pieces; the middle parts of the left end and the right end of the elastic piece ten are provided with a pair of waist-shaped through holes, the middle parts of the left end and the right end of the elastic piece nine are integrally provided with a pair of inserting strips, and the elastic piece nine is inserted into the pair of waist-shaped through holes of the elastic piece ten through a pair of clamping strips so as to enhance the connection stability of the elastic piece nine and the elastic piece ten.

Further, the bolt fixing piece comprises a machine tooth nut and an adjusting bolt matched with the machine tooth nut, the machine tooth nut is hot-melted in the lifting block in advance through a hot melting machine, and the adjusting bolt penetrates through the fastening clamping piece and then is in threaded connection with the machine tooth nut.

Further, the lower part of the bottom plate of the frame is also fixedly provided with a baffle plate used for fastening the fixed end of the ultrasonic motor.

Compared with the prior art, the beneficial effects are that, by adopting the scheme, the utility model discloses an ultrasonic motor drive main shaft carbon-point vibrations, utilize the frictional force between main shaft carbon-point and the fastening fastener, realize fastening fastener and lifting block intermittent vibration rectilinear movement, and then realize stretching out or returning the camera to the electronic equipment casing; the friction force between the fastening clamping piece and the main shaft can be flexibly adjusted by adjusting the tightness of the bolt fixing piece, the flexibility is strong, and the proper and stable friction force between the fastening clamping piece and a carbon rod of the main shaft is ensured; the fastening clamp is arranged on the upper part of the lifting block through the bolt fixing piece, so that the movement synchronism and stability of the lifting block and the fastening clamp are maintained; the structure is simple, the applied parts are small in size, the assembly and the maintenance are convenient, and the market application value is good.

Drawings

For a clearer explanation of the embodiments or technical solutions in the prior art, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is a schematic view of a third embodiment of the present invention;

FIG. 4 is a second structural diagram of a third embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fourth embodiment of the present invention;

fig. 6 is one of the five schematic structural diagrams of the embodiment of the present invention;

fig. 7 is a second schematic structural view of a fifth embodiment of the present invention;

fig. 8 is one of six schematic structural diagrams according to the embodiment of the present invention;

fig. 9 is a second schematic structural view of a sixth embodiment of the present invention;

fig. 10 is one of the seven structural diagrams of the embodiment of the present invention;

fig. 11 is a second schematic structural view of a seventh embodiment of the present invention;

fig. 12 is an eighth structural schematic diagram of the embodiment of the present invention;

as shown in the above legend: 1. an ultrasonic motor; 2. a spindle carbon rod; 3. a lifting block; 31. a clamping groove IV; 32. a fifth clamping groove; 33. a first opening; 34. a clamping groove six; 35. an extension barrier; 36. positioning the column; 4. fastening the fastener; 40. a short spring plate; 41. a long spring plate; 42. a first clamping groove; 43. a second elastic sheet; 44. a first elastic sheet; 45. a third elastic sheet; 451. a bending section; 452. a projection; 46. a fourth elastic sheet; 47. a left spring plate; 48. a right spring plate; 49. a fifth elastic sheet; 50. a spring plate six; 51. a gasket; 52. a spring plate seven; 53. a spring plate eight; 54. an extension portion; 55. a ninth elastic sheet; 551. cutting; 56. ten elastic pieces; 561. a waist-shaped through hole; 57. a guide shaft 6, a bolt fixing piece; 61. a machine-tooth nut; 62. adjusting the bolt; 7. a directional guide bar; 8. a compression spring; 9. a baffle plate; 10. a frame.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The use of the terms "fixed," "integrally formed," "left," "right," and the like in this specification is for illustrative purposes only, and elements having similar structures are designated by the same reference numerals in the figures.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1, the overall structure of the present invention is: a lifting device suitable for electronic equipment is arranged in the electronic equipment and comprises a frame 10, an ultrasonic motor 1, a spindle carbon rod 2, a lifting block 3 and a fastening clamping piece 4, wherein the fixed end of the ultrasonic motor 1 is installed at the lower part of a bottom plate of the frame 10, the working end (namely a piezoelectric ceramic end) of the ultrasonic motor 1 faces upwards and is fixedly connected with the lower end of the spindle carbon rod 2 penetrating through the bottom plate of the frame 10, the upper end of the spindle carbon rod 2 is penetrated in a top plate of the frame 10, and the outer part of the spindle carbon rod 2 is detachably connected with the front part of the lifting block 3 through the fastening clamping piece 4; the camera is fixedly installed on the lifting block 3, and the ultrasonic motor 1 drives the main shaft carbon rod 2 to vibrate to realize the lifting of the lifting block 3 and the camera.

Further, the frame 10 is fixed in the casing of the electronic device by bolts, thereby ensuring the stable synchronism of the frame 10 and the electronic device; the power supply of the ultrasonic motor 1 is derived from a battery of the electronic equipment, and the operation or stop of the ultrasonic motor 1 can be controlled by a rewinder of the electronic equipment; the camera is fixedly arranged on the upper part of the lifting block 3 through the bolt of the camera mounting seat, so when the camera extends out of the upper part of the electronic equipment, the fastening clamping piece 4 clamped outside the spindle carbon rod 2 is arranged on the front part of the lifting block 3 through the bolt fixing piece 6, and the camera cannot shake when being lifted; the upper end of the spindle carbon rod 2 is arranged inside a top plate of the frame 10 in a penetrating mode through the rubber ring, namely the rubber ring is sleeved on the outer wall of the upper end of the spindle carbon rod 2.

Furthermore, in order to facilitate the fastening clamp 4 to be quickly and accurately assembled to the front part of the lifting block 3 and maintain the connection stability of the front part and the lifting block 3, one pair or two pairs of positioning cylinders 36 are installed on the front part of the lifting block 3, positioning round holes with matched sizes are pre-formed in the positions, corresponding to the positioning cylinders 36, of the fastening clamp 4, and when the fastening clamp 4 is assembled to the lifting block 3, the positioning round holes correspond to the positioning cylinders 36 in position, so that the fastening clamp 4 is correspondingly clamped at the front part of the lifting block 3; in order to enlarge the contact area of the lifter block 3 and the fastener 4, the shape of the front part of the lifter block 3 matches the shape of the rear part of the fastener 4.

Further, the ultrasonic motor 1 used in the present invention is a micro ultrasonic linear motor in the prior art, and a TULA (ultra small ultrasonic linear motor) product developed by Korea company (Piezoelectric Technology Co., Ltd.) and national research institute (KIST: Korea institute of science and Technology) may be used. TULA is a motor that converts ultrasonic vibration caused by piezoelectric effect of single-layer type or multi-layer type piezoelectric ceramics (vibrator) into linear motion and rotational motion, and the model of the ultrasonic motor is TULA50B, and the website introduced by the product related information is linked to www.piezo-tech. The piezoelectric ceramic is fixed to the root portion of the drive shaft, and a friction body (movable body) that pressurizes the drive shaft sandwiches the main shaft, and when the main shaft stops, the main shaft stops completely due to the friction force, and therefore, micro-vibration such as an electromagnetic motor does not occur, and heat is not generated. The operation principle is that the vibration of the piezoelectric ceramics (vibrator) is transmitted to the vibration shaft, the speed of the forward and backward movement of the vibration is changed, so that the moving body (friction body) also has a minute forward and backward movement, and the fine motion is controlled at a high vibration frequency (ultrasonic vibration) based on the impact drive system using the inertia rule as the basic principle. The motor can run smoothly, and can obtain higher thrust and holding force for an ultra-small object, thereby being most suitable for a small motor for positioning.

The ultrasonic motor 1 can also adopt an ultrasonic linear motor in the prior art, such as patent No. CN200580001317.6, with the patent name of small piezoelectric or electrostrictive linear motor, and the beneficial effects of the patent mention: "the small piezoelectric/electrostrictive ultrasonic linear motor uses, as its driving source, bending movement of a unimorph or bimorph (equivalent to the ultrasonic motor 1 in this document) including both an elastic body and a piezoelectric or electrostrictive substrate, so that the movable body 40 (equivalent to the lift block 3 in this document) moves along the movable shaft 30 (equivalent to the spindle carbon rod 2 in this document), and therefore, the linear movement of the lift block in the lift is realized by driving the spindle carbon rod to vibrate by the operation of the ultrasonic motor, and for the prior art, no other description is made again; in order to maintain the friction force between the fastening piece 4 and the spindle carbon rod 2, the fastening piece 4, i.e. the spring plate, is made of stainless steel or beryllium copper.

Example 1, as shown in fig. 1, the number of the ultrasonic motor 1 and the spindle carbon rod 2 is three; the fastening clamping piece 4 comprises a short elastic piece 40 and a long elastic piece 41 which are clamped at the front side and the rear side of the spindle carbon rod 2, and the front part of the long elastic piece 41 is bent to form a first clamping groove 42 at the position where the front part of the long elastic piece 41 is contacted with the three spindle carbon rods 2; the left side of the long elastic sheet 41 is matched with the first clamping groove 42 through the folding part to clamp the spindle carbon rod 2 on the left side, the rear part of the short elastic sheet 40 is matched with the first clamping groove 42 on the right side of the long elastic sheet 41 to clamp the other two spindle carbon rods 2, and the fastening clamping piece 4 is fastened on the front part of the lifting block 3 through two sets of bolt fixing pieces 6; further, when the ultrasonic motor 1 works, the fastening clamping piece 4 and the lifting block 3 are linearly and intermittently moved mainly by driving the spindle carbon rod 2 to vibrate, so that the friction force between the fastening clamping piece 4 and the spindle carbon rod 2 is critical, and the friction force between the fastening clamping piece 4 and the carbon rod can be manually adjusted and controlled through the bolt fixing piece 6 during installation or assembly; in this embodiment, when the tightness of the left fastening clip 4 is adjusted, the friction between the long elastic piece 41 and the left spindle carbon rod 2 can be appropriately adjusted, and when the tightness of the right fastening clip 4 is adjusted, the friction between the short elastic piece 40 and the other two spindle carbon rods 2 can be appropriately adjusted.

Embodiment 2, as shown in fig. 2, different from embodiment 1, this embodiment mainly depends on two spring plates with clamping grooves to realize front and back clamping operation of the spindle carbon rod 2; the concrete solution is as follows: the fastening clamping piece 4 comprises a second elastic piece 43 and a first elastic piece 44 which are clamped on the front side and the rear side of the spindle carbon rod 2, the first elastic piece 44 and the second elastic piece 43 are of front-rear symmetrical structures, clamping grooves II and clamping grooves III are respectively bent at the positions where the first elastic piece 44 and the second elastic piece 43 are in contact with the three spindle carbon rods 2, and the first elastic piece 44 clamps the spindle carbon rod 2 through the clamping grooves II and the second elastic piece 43 through the clamping grooves III and is fastened to the front part of the lifting block 3 through two sets of bolt fixing pieces 6; furthermore, the contact part of the first elastic sheet 44 and the second elastic sheet 43 is spot-welded through a spot welding process, so that the friction force between the fastening clamping piece 4 and the spindle carbon rod 2 is further controlled.

Embodiment 3, as shown in fig. 3 and 4, wherein fig. 4 is a schematic structural view after the fourth spring piece 46 is hidden; the difference between the ultrasonic motor 1 and the spindle carbon rod 2 is that the number of the ultrasonic motor 1 and the spindle carbon rod 2 is two; the fastening clamping piece 4 comprises two spring pieces III 45 and one spring piece IV 46, the front part of the lifting block 3 is provided with a pair of clamping grooves IV 31 used for embedding the two spindle carbon rods 2, the front part of the lifting block 3 is positioned between the pair of clamping grooves IV 31 and is also provided with a pair of clamping grooves V32 which are bilaterally symmetrical, the bent parts 451 of the two spring pieces III 45 are respectively and correspondingly embedded into the pair of clamping grooves V32, the middle parts of the pair of clamping grooves V32 are respectively provided with an opening I33, the pair of clamping grooves V32 are respectively and correspondingly communicated with the pair of clamping grooves IV 31 through the two openings I33, and the convex parts 452 of the two spring pieces III 45 protrude outwards from the opening I33 to tightly extrude the spindle carbon rods 2 on the; the left side edge and the right side edge of the elastic sheet IV 46 respectively and correspondingly cover and press the two elastic sheets III 45 in the pair of clamping grooves V32, and the middle part of the elastic sheet IV 46 is fastened at the front part of the lifting block 3 through a set of bolt fixing part 6; when the spindle carbon rod 2 is installed, the elastic sheet III 45 is clamped in the clamping groove V32, and then the spindle carbon rod 2 is placed; one surface of the convex part 452 of the third elastic sheet 45, which is close to the carbon rod 2 of the main shaft, is a plane, so that the extrusion contact area of the third elastic sheet 45 and the carbon rod 2 of the main shaft is correspondingly increased, and the extrusion friction force of the third elastic sheet 45 on the carbon rod 2 of the main shaft is kept; the elastic sheet four 46 covers the elastic sheet three 45 in the clamping groove five 32, so that the elastic sheet three 45 is effectively prevented from being separated from the clamping groove five 32 in the vibration process of the spindle carbon rod 2; furthermore, a pair of guide shafts 57 arranged left and right are installed at the rear portion of the frame 10, the pair of guide shafts respectively penetrate through the left and right sides of the rear portion of the elevator block 3, and the elevator block can move linearly up and down along the guide shafts, that is, the guide shafts 57 can make the elevator block 3 move more stably during the moving process.

Embodiment 4, as shown in fig. 5, the difference between this embodiment and the first 3 embodiments is that the fastening clip 4 is divided into two elastic pieces, the friction force between each spindle carbon rod 2 and the elastic piece can be controlled and adjusted independently, and the adjustability is better; the specific implementation structure is as follows: the number of the ultrasonic motor 1 and the number of the main shaft carbon rods 2 are two; the fastening clamping piece 4 comprises a left elastic piece 47 and a right elastic piece 48, a pair of clamping grooves six 34 is formed in the front portion of the lifting block 3 corresponding to the two spindle carbon rods 2, the left elastic piece 47 and the right elastic piece 48 are of a central symmetrical structure, the left elastic piece 47 and the right elastic piece 48 are correspondingly clamped in the pair of clamping grooves six 34 respectively, the left elastic piece 47 comprises a clamping portion and a fixing portion, the clamping portions of the left elastic piece 47 and the right elastic piece 48 are correspondingly clamped outside the two spindle carbon rods 2 respectively, and the fixing portions of the left elastic piece 47 and the right elastic piece 48 are fastened to the front portion of the lifting block 3 through a set of bolt fixing piece 6 respectively, wherein the clamping portion is in a cylindrical shape with an opening, so that the contact area between the carbon rods and the elastic pieces is more sufficient, and the; and the inner side of the clamping groove six 34 and the corresponding positions of the upper end and the lower end of the clamping part are also integrally provided with an extending blocking part 35 for blocking the clamping part of the left elastic sheet 48 and the right elastic sheet 48 from shaking up and down, so that the movement synchronism of the lifting block 3 and the elastic sheets is kept.

Embodiment 5, as shown in fig. 6 and 7, differs from the above four embodiments in that a spacer 51 is placed inside the fastening clip 4; the specific implementation mode is as follows: the fastening clamping piece 4 comprises five spring pieces 49 and six spring pieces 50 which are clamped on the front side and the rear side of the spindle carbon rod 2, the position, in which the front part of the six spring pieces 50 is contacted with the spindle carbon rod 2, is bent to form a clamping groove seven, the six spring pieces 50 are matched with the five spring pieces 49 through the clamping groove seven to clamp the spindle carbon rod 2, a gasket 51 is clamped between the five spring pieces 49 and the six spring pieces 50, and the five spring pieces 49, the gasket 51 and the six spring pieces 50 are fastened on the front part of the lifting block 3 through two sets of bolt fixing pieces 6; wherein, increased gasket 51 between shell fragment five 49 and shell fragment six 50, because the thickness of gasket 51 is fixed, five 49 of control shell fragment that can be fine like this and the deflection of shell fragment six 50, because the thickness of gasket 51 is fixed, can directly lock bolt fixing spare 6 to elevator 3, guaranteed the invariable of frictional force between fastening fastener 4 and main shaft carbon-point 2, at this moment need not control the pressure between two shell fragments through bolt fixing spare 6.

Furthermore, a pair of directional guide rods 7 arranged left and right are installed between the upper and lower portions of the rear side of the frame 10, and the pair of directional guide rods 7 respectively penetrate the left and right sides of the lifting block 3, and the directional guide rods 7 can make the lifting block 3 move more stably; and a spring is sleeved outside the directional guide rod, penetrates through the lifting block along with the directional guide rod, and is a compression spring used for increasing the thrust of the ultrasonic motor to the lifting block at the starting moment.

Example 6, as shown in fig. 8 and 9, is different from example 5 in that: a compression spring 8 is additionally arranged between the bolt fixing piece 6 and one elastic sheet far away from the lifting block 3; the concrete structure is as follows: the fastening clamping piece 4 comprises a seven elastic pieces 52 and an eight elastic piece 53 which are clamped on the front side and the rear side of the spindle carbon rod 2, a clamping groove eight is bent at the position where the eight elastic piece 53 is contacted with the spindle carbon rod 2, the seven elastic pieces 52 are thickened elastic pieces, the eight elastic pieces 53 clamp the spindle carbon rod 2 through the eight clamping groove and the seven elastic pieces 52 in a matching mode and are fastened to the front portion of the lifting block 3 through two sets of bolt fixing pieces 6, and a compression spring 8 is further sleeved outside the bolt fixing pieces 6; the compression spring 8 is additionally arranged between the bolt fixing piece 6 and the elastic piece seven 52, so that the compression spring 8 is pressed on the upper part of the elastic piece seven 52, and the restoring force of the compression spring 8 is utilized to generate pressure on the spindle carbon rod 2 through the elastic piece seven 52; the elastic piece seven 52 is a thickened elastic piece, so that the strength is high, and the deformation caused by the restoring acting force of the compression spring 8 can be avoided; the friction force between the fastening clamping piece 4 and the spindle carbon rod 2 can be adjusted by adjusting the bolt fixing piece 6 and the compression spring 8; furthermore, extension parts 54 are further integrally arranged at the left end and the right end of the elastic piece eight 53, a pair of second openings is further formed in the left end and the right end of the lifting block 3, the extension parts 54 are clamped in the second openings, the elastic piece eight 53 is clamped in the second openings through the extension parts 54 at the two ends, accordingly, the elastic piece eight 53 is prevented from generating dislocation displacement relative to the lifting block 3, and the moving synchronism and stability of the lifting block 3 and the elastic piece eight 53 are guaranteed.

Embodiment 7, as shown in fig. 10 and 11, differs from embodiment 6 in that the two spring plates of the fastening clip 4 are connected together by means of a snap; the concrete structure is as follows: the fastening clamping piece 4 comprises a nine-spring-piece 55 and a ten-spring-piece 56 which are clamped at the front side and the rear side of the spindle carbon rod 2, the ten-spring-piece 56 is bent to form a ten-clamping groove at the position where the ten-spring-piece 56 is contacted with the spindle carbon rod 2, the ten-spring-piece 56 clamps the spindle carbon rod 2 through the ten-clamping groove and the nine-spring-piece 55 in a matched manner and is fastened at the front part of the lifting block 3 through two sets; the middle parts of the left end and the right end of the elastic piece ten 56 are provided with a pair of waist-shaped through holes 561, the middle parts of the left end and the right end of the elastic piece nine 55 are integrally provided with a pair of inserting strips 551, and the elastic piece nine 55 is inserted into the pair of waist-shaped through holes 561 of the elastic piece ten 56 through a pair of clamping strips so as to enhance the connection stability of the elastic piece nine 55 and the elastic piece ten 56; the nine spring pieces 55 and the ten spring pieces 56 are inserted into the waist-shaped through holes 561 matched with the inserting pieces 551 through the inserting pieces 551 and then fixed on the lifting block 3 through the bolt fixing pieces 6, so that the moving synchronism of the two spring pieces can be kept.

Embodiment 8, as shown in fig. 12, in the above 7 embodiments, all the bolt fixing pieces 6 adopt the following structures; the bolt fixing piece 6 comprises a machine tooth nut 61 and an adjusting bolt 62 matched with the machine tooth nut, the material of the lifting block 3 mainly adopts plastic materials such as PC or POM, if tapping operation is directly carried out on the lifting block through a tapping machine, tapping screw holes can be unstable due to the material factor, so the machine tooth nut 61 is pre-hot-melted in the lifting block 3 through a hot melting machine, and the adjusting bolt 62 penetrates through the fastening clamping piece 4 and then is in threaded connection with the machine tooth nut 61; the machine tooth nut 61 is a copper nut, so that the consistency and reliability of the adjusting bolt 62 and the lifting block 3 are kept.

Embodiment 9, in the above eight embodiments, in order to protect the ultrasonic motor 1 and prevent the motor from backing up during movement, the lower part of the bottom plate of the frame 10 is also fixedly provided with a baffle 9 for fastening the fixed end of the ultrasonic motor 1; the upper part of the baffle 9 and the two sides of the lower part of the frame 10 are fixed by bolts or spot welding, and the baffle 9 can be adhered and fixed on the lower part of the frame 10 by strong glue.

The working principle is as follows: firstly, the lifting device and the camera are positioned in electronic equipment, such as a mobile phone, a tablet personal computer, a mobile computer and the like, and when the camera needs to be used, the camera extends out of or returns back to the electronic equipment; the extending process of the camera: the ultrasonic motor is electrified to work to drive the carbon rod of the main shaft to vibrate, so that the fastening clamping piece and the lifting block vibrate intermittently and linearly move, and the camera extends out of the electronic equipment; the camera return process refers to the camera extension process.

It should be noted that the above technical features are continuously combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; moreover, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A kind of lifting gear suitable for electronic device, this lifting gear sets up in the electronic device, characterized by that: the lifting device comprises a frame, an ultrasonic motor, a spindle carbon rod, a lifting block and a fastening clamping piece, wherein the fixed end of the ultrasonic motor is arranged at the lower part of a bottom plate of the frame, the working end of the ultrasonic motor faces upwards and is fixedly connected with the lower end of the spindle carbon rod penetrating through the bottom plate of the frame, the upper end of the spindle carbon rod is arranged in a top plate of the frame in a penetrating manner, and the outer part of the spindle carbon rod is detachably connected with the front part of the lifting block through the fastening clamping piece; the camera is fixedly installed on the lifting block, and the ultrasonic motor works to drive the carbon rod of the main shaft to vibrate so as to realize the lifting of the lifting block and the camera.

2. A lifting device suitable for use in an electronic device as claimed in claim 1, wherein: the number of the ultrasonic motors and the number of the main shaft carbon rods are three; the fastening clamping piece comprises a short elastic piece and a long elastic piece which are clamped at the front side and the rear side of the spindle carbon rod, and a first clamping groove is bent at the position where the front part of the long elastic piece is contacted with the three spindle carbon rods; the left side of the long elastic sheet is matched with the first clamping groove to clamp the carbon rod of the main shaft on the left side, the rear portion of the short elastic sheet is matched with the first clamping groove on the right side of the long elastic sheet to clamp the carbon rods of the other two main shafts, and the fastening clamping piece is fastened to the front portion of the lifting block through two sets of bolt fixing pieces.

3. A lifting device suitable for use in an electronic device as claimed in claim 1, wherein: the fastening clamping piece comprises a second elastic piece and a first elastic piece which are clamped at the front side and the rear side of the spindle carbon rod, the first elastic piece and the second elastic piece are of front-rear symmetrical structures, the positions where the first elastic piece and the second elastic piece are in contact with the three spindle carbon rods are respectively bent to form a second clamping groove and a third clamping groove, and the first elastic piece clamps the spindle carbon rod through the second clamping groove and the second elastic piece through the third clamping groove and is fastened to the front part of the lifting block through two sets of bolt fixing pieces; and the contact part of the first elastic sheet and the second elastic sheet is subjected to spot welding through a spot welding process.

4. A lifting device suitable for use in an electronic device as claimed in claim 1, wherein: the number of the ultrasonic motors and the number of the main shaft carbon rods are two; the fastening clamping piece comprises two elastic pieces III and one elastic piece IV, the front part of the lifting block is provided with a pair of clamping grooves IV for embedding two spindle carbon rods, the front part of the lifting block is positioned between the pair of clamping grooves IV and is also provided with a pair of clamping grooves V which are bilaterally symmetrical, the bent parts of the two elastic pieces III are respectively and correspondingly embedded into the pair of clamping grooves V, the middle parts of the pair of clamping grooves V are respectively provided with an opening I, the pair of clamping grooves V are respectively and correspondingly communicated with the pair of clamping grooves IV through the two openings I, and the convex parts of the two elastic pieces III protrude outwards from the opening I to tightly press the spindle carbon rods on the inner walls of; the left side edge and the right side edge of the elastic sheet IV respectively and correspondingly cover and press the two elastic sheets III in the pair of clamping grooves V, and the middle part of the elastic sheet IV is fastened at the front part of the lifting block through a set of bolt fixing piece; a pair of guide shafts arranged left and right are mounted at the rear part of the frame, and the guide shafts respectively penetrate through the left side and the right side of the rear part of the lifting block.

5. A lifting device suitable for use in an electronic device as claimed in claim 1, wherein: the number of the ultrasonic motors and the number of the main shaft carbon rods are two; the fastening clamping piece comprises a left elastic piece and a right elastic piece, a pair of clamping grooves six are formed in the front part of the lifting block corresponding to the two spindle carbon rods, the left elastic piece and the right elastic piece are of central symmetry structures, the left elastic piece and the right elastic piece are correspondingly clamped in the clamping grooves six respectively, the left elastic piece comprises a clamping part and a fixing part, the clamping parts of the left elastic piece and the right elastic piece are correspondingly clamped outside the two spindle carbon rods respectively, and the fixing parts of the left elastic piece and the right elastic piece are fastened to the front part of the lifting block through a set of bolt fixing piece respectively; and the inner side of the clamping groove six and the corresponding positions of the upper end and the lower end of the clamping part are also integrally provided with an extending blocking part for blocking the clamping part of the left elastic sheet and the clamping part of the right elastic sheet from shaking up and down.

6. A lifting device suitable for use in an electronic device as claimed in claim 1, wherein: the fastening clamping piece comprises a fifth elastic piece and a sixth elastic piece which are clamped at the front side and the rear side of the spindle carbon rod, a seventh clamping groove is bent at the position where the front part of the sixth elastic piece is contacted with the spindle carbon rod, the sixth elastic piece is matched with the fifth elastic piece through the seventh clamping groove to clamp the spindle carbon rod, a gasket is clamped between the fifth elastic piece and the sixth elastic piece, and the fifth elastic piece, the gasket and the sixth elastic piece are fastened at the front part of the lifting block through two sets of bolt fixing pieces; a pair of directional guide rods which are arranged left and right are arranged between the upper part and the lower part of the rear side of the frame, and the pair of directional guide rods respectively penetrate through the left side and the right side of the lifting block.

7. A lifting device suitable for use in an electronic device as claimed in claim 1, wherein: the fastening clamping piece comprises a seventh elastic piece and an eighth elastic piece which are clamped on the front side and the rear side of the spindle carbon rod, a clamping groove eight is bent at the position where the eighth elastic piece is contacted with the spindle carbon rod, the seventh elastic piece is a thickened elastic piece, the eighth elastic piece is matched with the seventh elastic piece through the clamping groove eight to clamp the spindle carbon rod and is fastened on the front part of the lifting block through two sets of bolt fixing pieces, and a compression spring is sleeved outside the bolt fixing pieces; the left end and the right end of the elastic piece eight are further integrally provided with extending portions, the left end and the right end of the lifting block are further provided with a pair of second openings, and the extending portions are clamped in the second openings.

8. A lifting device suitable for use in an electronic device as claimed in claim 1, wherein: the fastening clamping piece comprises a spring plate nine and a spring plate ten which are clamped at the front side and the rear side of the spindle carbon rod, a clamping groove ten is bent at the position where the spring plate ten is contacted with the spindle carbon rod, and the spring plate ten clamps the spindle carbon rod through the cooperation of the clamping groove ten and the spring plate nine and is fastened at the front part of the lifting block through two sets of bolt fixing pieces; the middle parts of the left end and the right end of the elastic piece ten are provided with a pair of waist-shaped through holes, the middle parts of the left end and the right end of the elastic piece nine are integrally provided with a pair of inserting strips, and the elastic piece nine is inserted into the pair of waist-shaped through holes of the elastic piece ten through a pair of clamping strips so as to enhance the connection stability of the elastic piece nine and the elastic piece ten.

9. A lifting device for an electronic device according to claim 2, 3, 4, 5, 6, 7 or 8, wherein: the bolt fixing piece comprises a machine tooth nut and an adjusting bolt matched with the machine tooth nut, the machine tooth nut is hot-melted in the lifting block in advance through a hot melting machine, and the adjusting bolt penetrates through the fastening clamping piece and then is in threaded connection with the machine tooth nut.

10. A lifting device suitable for use in an electronic apparatus according to any one of claims 2, 3, 4, 5, 6, 7 or 8, wherein: and the lower part of the bottom plate of the frame is also fixedly provided with a baffle plate for fastening the fixed end of the ultrasonic motor.