CN102768813A - Advertising equipment capable of turning over on three sides - Google Patents
Advertising equipment capable of turning over on three sides Download PDFInfo
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- CN102768813A CN102768813A CN2012102732005A CN201210273200A CN102768813A CN 102768813 A CN102768813 A CN 102768813A CN 2012102732005 A CN2012102732005 A CN 2012102732005A CN 201210273200 A CN201210273200 A CN 201210273200A CN 102768813 A CN102768813 A CN 102768813A
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Abstract
The invention discloses advertising equipment capable of turning over on three sides, comprising a driving shaft assembly and a driven shaft assembly, wherein the driving shaft assembly drives the driven shaft assembly to realize the triangular prism rotation. The advertising equipment is characterized by having the positioning function and comprising a locating assembly, wherein the locating assembly which movably coordinates with the driving shaft assembly makes a periodic movement when the driving shaft assembly rotates, the other end of the periodically-moving locating assembly coordinates with a locating structure arranged on the driven shaft assembly to realize the location of the triangular prism. The locking and the unlocking of the triangular prism is completed by a group of independent locating assemblies, the problem of big friction is overcome when the driven wheel rotates, therefore, the transmission mechanism and the triangular prism rotate freely and locate accurately, the locking and the unlocking of the locating assembly is realized synchronously with the driving mechanism and the driven mechanism without deflection, at the same time, the problem that the large power is needed supplying instantly when the motor starts can be avoided, the motor load can be greatly reduced, the failure rate can be reduced, the damage of the motor and the driving shaft can be reduced, and the maintenance cost and the failure rate can be decreased.
Description
Technical field
The present invention relates to three turning-up devices, especially can be accurately, stable, control the advertising equipment of three face circularly exhibitings lastingly.
Background technology
Three faces turn over the Europe of rising in of formula billboard, from the nineties introducing in last century China.It is made up of the triangular prism of a group and registration.Through the control of PLC controller, motor-driven, cam drive, make triangular prism center on self central shaft and rotate, carry out upset multi-form, order according to the mode that pre-sets, fix, form three width of cloth dynamic menus and take turns conversion.But widespread use out of doors; Locate like the metope of road both sides, station, airport, harbour, stadium, heavy construction and roof etc.; Also can be built up in indoorly, can improve the utilization factor of gold advertisement position, reach the beautifying city effect simultaneously like places such as show ground, market, publics place of entertainment.This three faces turn over its investment little; Maintenance cost is low relatively, good advertising effect wins businessman and consumer's welcome; Though electronic technology development in recent years is swift and violent, particularly the appearance of LED display has got many eyeballs, and this making and operation cost are high; Therefore, the higher value that causes it can't replace three surface-turning advertising placard of energy consumption, maintenance and operation cost.The light pollution problem also is the main cause that LED display is popularized obstacle.
Yet; Existing three faces turn over advertisement general existence in daily use and cause fault frequent because of design defect; Have a strong impact on normal issue of advertisement and city image; Existing three faces turn over advertisement in order to reach the smooth unification of triangular prism, require each triangular prism after each the rotation, an accurate localization to be arranged, and also need prevent the deflection that strong wind or other factors cause.
As shown in Figure 1; The gear train that existing three faces turn over advertisement comprises the main drive shaft 1 that is connected with motor; Be fixedly connected with driving wheel 2 on the main drive shaft 1; Also comprise the driven shaft 3 that is connected with triangular prism and be fixed on the engaged wheel 4 on the driven shaft 3, driven shaft 3 is vertical setting with main drive shaft 1, and bearing and bearing seat 5 are used for support and connection driven shaft 3.Turn over the characteristics of structure according to three faces, engaged wheel 4 is three-legged structure or umbrella toothing, and the special-shaped driven moving tooth 7 of the abnormity through driving wheel 2 lateral projections or 6 pairs of engaged wheels of active moving tooth of umbrella tooth promotes to reach the purpose that triangular prism rotates.Problem is; The location of triangular prism is closely to rely on through a wherein side of the engaged wheel 4 of three-legged structure or umbrella toothing and driving wheel 2 to reach; Promptly the position of 8 indications among the figure that is to say that driving wheel 2 is big more with the distance of the side of engaged wheel 4, and the integral smoothness of three surface-turning advertising placard is also just poor more; Even adjacent triangular prism occurs and collide each other, and the flatness that three faces turn over also is one of quality of weighing by a billboard.Yet driving wheel 2 and engaged wheel 4 are against must be tight more; The friction force that produces between them is just big more; The power that motor needs when rotary driving wheel 2 is just big more, can imagine need overcome great friction force if the same time of dozens or even hundreds of triangular prism rotates.When lean on the strength driving wheel driven, engaged wheel cooperates and reasons such as Yin Wendu, wearing and tearing cause the gap to change will causing frictional resistance very greatly; Thereby motor load also strengthens; Therefore out-of-flatness or entanglement also appear in picture, in addition shut down suddenly, faults such as main drive shaft twists off, motor damage will influence equipment operation safety and life-span.Particularly advertising equipment all is built up in the commercial Wang Qu in city, in case the content entanglement occurs, will have a strong impact on city image and advertising vision effect.
Summary of the invention
For overcoming the above deficiency, the present invention provides a kind of three faces through improvement to turn over advertising equipment.
This three faces turn over advertising equipment; Comprise main drive shaft assembly, driven shaft assembly; Wherein main drive shaft components drive driven shaft assembly realizes that triangular prism rotates, and it is characterized in that, also comprises positioning component; The movable with it positioning component that cooperates is done periodic motion during main drive shaft assembly periodic rotary, and the other end of the positioning component of periodic motion cooperates the location of realizing triangular prism with the location structure that the driven shaft assembly is provided with.Thereby break away from fully after letting driving wheel that engaged wheel is stirred, will not have frictional resistance again.
Wherein, positioning component comprises locating support and the geocoded activity mechanism that is attached thereto, and said geocoded activity mechanism is a fastening screw, and said fastening screw comprises two parts, and wherein a part is corresponding with the main drive shaft assembly, and another part is corresponding with the driven shaft assembly.
Wherein, the main drive shaft assembly comprises the driving wheel that the main drive shaft that is connected with motor and one are connected in main drive shaft, is provided with initiatively moving tooth corresponding to driven shaft assembly one side on the driving wheel, and driving wheel also is provided with location release cam corresponding to positioning component; Initiatively moving tooth can be a kind of in fan tooth, umbrella tooth or multiple tooth or the heteromorphic teeth, and accordingly, engaged wheel is engaged with portion can be elevating arc or conical gear or multi-gear or special shape gear.
Wherein, location release cam one end directly is embedded in the end that the driving wheel correspondence is provided with groove, and the other end is provided with draw-in groove, the protruding corresponding engaging that is provided with driving wheel groove side, or locate the shape that the release cam is direct and driving wheel becomes one.
Wherein, The driven shaft assembly comprises bearing and the bearing seat that is used for fixing the driven shaft that connects triangular prism and is used to support driven shaft; The driven shaft end is fixedly connected with engaged wheel, establish a location engaged wheel dish with the engaged wheel one is also coaxial, or bearing seat is provided with the location structure assembly.Described location structure is locating slot or pilot hole or the locating piece that the driven wheel disc in location is provided with corresponding to fastening screw.
Wherein, a said fastening screw wherein part is corresponding with the location release cam of main drive shaft assembly, and the locating slot of another part and driven shaft assembly or pilot hole or locating piece are corresponding; Also be provided with the spring of reset response on the fastening screw, so as fastening screw the rotation of driven positioning disk can promptly and accurately inject when putting in place with respect to locating slot or pilot hole or locating piece.
Perhaps, positioning component comprises locating support and the geocoded activity mechanism that is attached thereto, and geocoded activity mechanism comprises follower lever that cooperates with the main drive shaft assembly and the register pin that links with follower lever, and register pin is provided with elasticity reset device.
Equally, the main drive shaft assembly comprises the main drive shaft that is connected with motor and is connected in the driving wheel of main drive shaft, is provided with initiatively moving tooth corresponding to driven shaft assembly one side on the driving wheel, and driving wheel is also located the release cam corresponding to being provided with of positioning component; The driven shaft assembly comprises bearing and the bearing seat that is used for fixing the driven shaft that connects triangular prism and is used to support driven shaft; The driven shaft end is fixedly connected with engaged wheel; With the also coaxial location engaged wheel dish of establishing of engaged wheel one; Described location structure is the register pin of the driven wheel disc in location corresponding to positioning component, and the locating slot that is provided with or pilot hole or locating piece.Or bearing seat is provided with the location structure assembly.
Beneficial effect of the present invention is, the location of triangular prism changed by one group of positioning component accomplish, rather than lean on the contact between driving wheel and the engaged wheel to realize; Avoided when engaged wheel rotates, need overcoming powerful frictional resistance problem; Make driving wheel, engaged wheel rotate freely, and the also accurately realization preferably of the location of triangular prism, can not deflect; Guaranteed that the consistent of advertisement plane unify; Equally, can avoid motor to need moment that powerful situation is provided, the load, minimizing number of motors, the failure rate that reduces, the reduction motor that alleviate motor greatly damage and the reduction maintenance cost.
Description of drawings
Fig. 1 is that prior art three faces turn over the advertising equipment structural representation.
Fig. 2 is that embodiment 1 three faces turn over advertising equipment STRUCTURE DECOMPOSITION synoptic diagram.
Fig. 3 is that embodiment 1 three faces turn over the advertising equipment structural representation.
Fig. 4 is that embodiment 2 three faces turn over the advertising equipment synoptic diagram.
Fig. 5 is that embodiment 2 three faces turn over another visual angle synoptic diagram of advertising equipment.
Fig. 6 is that embodiment 3 three faces turn over the advertising equipment structural representation.
Embodiment
To combine accompanying drawing the present invention to be further specified below with embodiment.
Like Fig. 2, shown in Figure 3; The gear train that this three faces turn over advertising equipment comprises main drive shaft assembly 10, driven shaft assembly 20; Wherein main drive shaft assembly 10 comprises the driving wheel 12 that the main drive shaft 11 that is connected with motor and one are connected in main drive shaft; In order to prevent driving wheel 12 skew, adopted the bundle firmware, prick firmware and be enclosed within on the main drive shaft 11 by two lobe driving wheel internal members 13 of symmetry and fixedly form with tighten ring 18; Driving wheel 12 is provided with initiatively moving tooth 14, is positioned at driving wheel 12 inboards, promptly near driven shaft assembly 20 1 sides; Accordingly, driven shaft assembly 20 comprises driven shaft 21 that is connected triangular prism with main drive shaft 11 vertical being used for fixing and the bearing seat 22 that is used to support driven shaft 21, and bearing 27 is connected between driven shaft 21 and the bearing seat 22; Driven shaft 21 bottoms are fixedly connected with engaged wheel 23; Equally, engaged wheel 23 is triangular in shape substantially, when 11 rotations of driven by motor main drive shaft, promotes to reach the purpose that driven shaft 21 rotates 120 ° through 14 pairs of engaged wheels of active moving tooth 23; Identical with prior art; Initiatively moving tooth 14 is heteromorphic teeths, and accordingly, the engaged wheel portion of being engaged with is that engaged wheel 23 is special shape gear.Positioning component 30 mainly is made up of two parts: locating support 31 and geocoded activity mechanism 32; Wherein locating support 31 one are fixed on the bearing seat 22 of driven shaft assembly; The other end is connected with geocoded activity mechanism 32; Movable device 32 be installed in can be up and down on the locating support fastening screw 35; Fastening screw 35 comprises two parts, and wherein a part is corresponding to the location release cam 15 (following detailed introduction) of driving wheel 12, the locating slot corresponding (following detailed introduction) that another part and engaged wheel 23 are located on the driven wheel disc.Equally, under the reasonable case effect, adopt an elasticity reset device to be used for fastening screw 35 is applied a downward acting force, present embodiment is as shown in the figure to be spring 36.
The course of work is following:
After step 3, engaged wheel 23 rotated 120 degree, fastening screw 35 inserted in the locating slot 25 of the driven wheel disc 24 in location automatically, promptly accomplishes reset locking.
Circulation thus, the advertisement that three faces of realizing turn over is showed, whole process, driven shaft assembly 20 is that the location is to realize through positioning component 30, when main drive shaft carries out next conversion of page, need not overcome the friction force with engaged wheel.
Can also gain enlightenment by above embodiment, like following examples:
Like Fig. 4, shown in Figure 5, this three faces provided by the invention turn over the gear train of advertising equipment with existing the same, comprise main drive shaft assembly 10, driven shaft assembly 20; Wherein main drive shaft assembly 10 comprises the driving wheel 12 that the main drive shaft 11 that is connected with motor and one are connected in main drive shaft; In order to prevent driving wheel 12 skews, adopted bundle firmware 13 (being the driving wheel internal member among the embodiment), driving wheel 12 is provided with initiatively moving tooth 14; Be positioned at driving wheel 12 inboards, promptly near driven shaft assembly 20 1 sides; Accordingly; Driven shaft assembly 20 comprises that driven shaft 21 that is connected triangular prism with main drive shaft 11 vertical being used for fixing and the bearing seat 22 that is used to support driven shaft 21, driven shaft 21 ends are fixedly connected with the advertising plane that engaged wheel 23, three faces turn over and have three; Three upsets are one-period; Equally, engaged wheel 23 is triangular in shape substantially, when 11 rotations of driven by motor main drive shaft, stirs the purpose that reaches driven shaft 21 rotations through 14 pairs of engaged wheels 23 of active moving tooth.Above characteristic is the prior art characteristic, does not encyclopaedize here.
The gear train difference part that present embodiment and existing three faces turn over advertising equipment is that mainly main drive shaft assembly 10 and 20 of driven shaft assemblies have increased certain hyte part 30; The movable with it positioning component 30 that cooperates is done cyclical movement when 10 cyclical movements of main drive shaft assembly, and the other end of the positioning component 30 of cyclical movement cooperates the location of realizing triangular prism with the location structure that engaged wheel 23 is provided with.Below in conjunction with accompanying drawing be elaborated its characteristic and motion principle.
Via above introduction, can find out, when machine operation drives main drive shaft 11 rotations; The inclined-plane of location release cam 15 sides and follower lever 33 is tangent and with slowly lifting of follower lever 33, and the register pin 34 that links with it lifts synchronously, when register pin 34 breaks away from from locating slot 25 fully; Positioning solution is removed; Main drive shaft 11 is rotated further, and register pin receives elasticity reset device 35 effects 34 this moments, and its end is pressed in the last plane of the driven wheel disc 24 in location.Meanwhile, initiatively moving tooth 14 also moves in a circle, tangent and drive engaged wheel 23 rotations in the inclined-plane of its side and triangle engaged wheel 23 sides; When driven shaft 21 rotations 120 are spent; Initiatively moving tooth 14 separates with engaged wheel 23, and the next locating slot 25 that locate on the driven wheel disc 24 this moment forwards register pin 34 residing positions to, receives the acting force of elasticity reset device 35; Register pin 34 sticks into the location of realizing driven shaft 21 in the locating slot 25, and promptly triangular prism has been realized the switching of a face.
This gear train of present embodiment has added positioning component; Can easily realize the driven shaft assembly; Be the location of triangular prism, can not cause the displaying plane of triangular prism not influence advertising results at grade, the more important thing is because of other reasons; The output power of motor is applied in the transmission of driving wheel to engaged wheel fully, has avoided need overcoming in the prior art friction force that between driving wheel and the engaged wheel because location is former thereby produce.This gear train can be so that motor output power balance, and prolong serviceable life, reduced maintenance cost.
Can also draw some other enlightenment by present embodiment, such as, the fixing of locating support also can be other positions of three surface-turning advertising placard, as long as with respect to the driven shaft invariant position; Still replace, and be to establish a positioning block, be used to block register pin and realize the purpose of locating with the pilot hole that is opened on the driven wheel disc in location such as, locating slot.
As shown in Figure 6, different with above embodiment is that the active moving tooth on the driving wheel 12 can use umbrella tooth 16 to replace; Correspondingly, engaged wheel 23 portions of being engaged with are conical gear 26, can implement the transmission of 12 pairs of engaged wheels 23 of driving wheel equally; And can accurately control its rotational angle, and turn over work characteristics according to these three faces, rotate 120 degree when overturning at every turn; So the number of teeth of umbrella tooth 16 by conical gear 26 decisions, is exceeded with each rotation 120 degree.
Geocoded activity mechanism that present embodiment uses and embodiment 1 are approximate, and its motion principle is identical with above embodiment, does not repeat them here.
Although specifically shown with reference to above embodiment and described the present invention, those skilled in the art can carry out the various changes on form and the details to it under the situation of the spirit and scope of the present invention that do not break away from claim and limited.All be interpreted as the present invention's scope required for protection.
Claims (10)
1. a face turns over advertising equipment; Comprise main drive shaft assembly, driven shaft assembly; Wherein main drive shaft components drive driven shaft assembly realizes that triangular prism rotates, and it is characterized in that, also comprises positioning component; The movable with it positioning component that cooperates is done periodic motion during main drive shaft assembly periodic rotary, and the other end of the positioning component of periodic motion cooperates the locking and unlocking of realizing triangular prism with the location structure that the driven shaft assembly is provided with.
2. three faces according to claim 1 turn over advertising equipment; It is characterized in that; Said positioning component comprises locating support and the geocoded activity mechanism that is attached thereto, and said geocoded activity mechanism is a fastening screw, and said fastening screw comprises two parts; Wherein a part is corresponding with the main drive shaft assembly, and another part is corresponding with the driven shaft assembly.
3. three faces according to claim 2 turn over advertising equipment; It is characterized in that; Said main drive shaft assembly comprises the driving wheel that the main drive shaft that is connected with motor and one are connected in main drive shaft; Be provided with initiatively moving tooth corresponding to driven shaft assembly one side on the driving wheel, driving wheel also is provided with location release cam corresponding to positioning component.
4. three faces according to claim 3 turn over advertising equipment; It is characterized in that; Said active moving tooth is a kind of in fan tooth, umbrella tooth, the multiple tooth or heteromorphic teeth, and accordingly, the engaged wheel portion of being engaged with is a kind of in elevating arc, conical gear, multi-gear or the special shape gear.
5. three faces according to claim 3 turn over advertising equipment, it is characterized in that, said location release cam one end is directly inlayed an end that places the driving wheel correspondence that groove is set, and the other end is provided with draw-in groove, the protruding corresponding engaging that is provided with driving wheel groove side.
6. three faces according to claim 2 turn over advertising equipment; It is characterized in that; Said driven shaft assembly comprises bearing and the bearing seat that is used for fixing the driven shaft that connects triangular prism and is used to support driven shaft; The driven shaft end is fixedly connected with engaged wheel, and with the also coaxial location engaged wheel dish of establishing of engaged wheel one, described location structure is locating slot or pilot hole or the locating piece that the driven wheel disc in location is provided with corresponding to fastening screw.
7. three faces according to claim 6 turn over advertising equipment, it is characterized in that, a said fastening screw wherein part is corresponding with the location release cam of main drive shaft assembly, and the locating slot of another part and driven shaft assembly or pilot hole or locating piece are corresponding.
8. three faces according to claim 7 turn over advertising equipment, it is characterized in that, also have been provided with the spring of reset response on the said fastening screw.
9. three faces according to claim 1 turn over advertising equipment; It is characterized in that; Said positioning component comprises locating support and the geocoded activity mechanism that is attached thereto; Geocoded activity mechanism comprises follower lever that cooperates with the main drive shaft assembly and the register pin that links with follower lever, and register pin is provided with elasticity reset device.
10. three faces according to claim 9 turn over advertising equipment; It is characterized in that; Said main drive shaft assembly comprises the main drive shaft that is connected with motor and is connected in the driving wheel of main drive shaft; Be provided with initiatively moving tooth corresponding to driven shaft assembly one side on the driving wheel, driving wheel also is provided with location release cam corresponding to the register pin of positioning component; The driven shaft assembly comprises bearing and the bearing seat that is used for fixing the driven shaft that connects triangular prism and is used to support driven shaft; The driven shaft end is fixedly connected with engaged wheel; With the also coaxial location engaged wheel dish of establishing of engaged wheel one, described location structure locating slot or pilot hole or locating piece that to be the driven wheel disc in location be provided with corresponding to the register pin of positioning component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210273200.5A CN102768813B (en) | 2012-08-02 | 2012-08-02 | Advertising equipment capable of turning over on three sides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210273200.5A CN102768813B (en) | 2012-08-02 | 2012-08-02 | Advertising equipment capable of turning over on three sides |
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| CN102768813A true CN102768813A (en) | 2012-11-07 |
| CN102768813B CN102768813B (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210273200.5A Expired - Fee Related CN102768813B (en) | 2012-08-02 | 2012-08-02 | Advertising equipment capable of turning over on three sides |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103700328A (en) * | 2014-01-15 | 2014-04-02 | 长沙信元电子科技有限公司 | Reverse player with elastic resetting devices |
| CN104269121A (en) * | 2014-09-26 | 2015-01-07 | 长沙信元电子科技有限公司 | Decorative frame of overturning type player and mounting method thereof |
| CN106504661A (en) * | 2016-12-27 | 2017-03-15 | 长沙信元电子科技有限公司 | A kind of transmission module protection based on elastic force of convertible player |
| CN106531002A (en) * | 2016-12-27 | 2017-03-22 | 长沙信元电子科技有限公司 | Turnover type player transmission device based on modularization |
| CN106683584A (en) * | 2016-12-27 | 2017-05-17 | 长沙信元电子科技有限公司 | Novel transmission device of overturning-type player |
| CN106763608A (en) * | 2016-12-27 | 2017-05-31 | 长沙信元电子科技有限公司 | A kind of convertible player transmission module |
| CN108010456A (en) * | 2018-01-10 | 2018-05-08 | 长安大学 | A kind of three face turnover billboard device based on worm and gear |
| CN108175657A (en) * | 2018-01-15 | 2018-06-19 | 林学金 | A kind of belt drive structure and massaging manipulator |
| CN109345972A (en) * | 2018-12-04 | 2019-02-15 | 项炜涛 | A kind of three surface-turning advertising placard |
| CN109410788A (en) * | 2018-12-04 | 2019-03-01 | 项炜涛 | A kind of energy conservation three surface-turning advertising placard |
| CN111839114A (en) * | 2020-07-28 | 2020-10-30 | 广州千研贸易有限公司 | Product exhibition vehicle with stable clamping and good display effect |
| CN116817148A (en) * | 2023-08-30 | 2023-09-29 | 沈阳华钛实业有限公司 | Device and method for detecting inner end face of casing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700328A (en) * | 2014-01-15 | 2014-04-02 | 长沙信元电子科技有限公司 | Reverse player with elastic resetting devices |
| CN104269121A (en) * | 2014-09-26 | 2015-01-07 | 长沙信元电子科技有限公司 | Decorative frame of overturning type player and mounting method thereof |
| CN104269121B (en) * | 2014-09-26 | 2016-08-17 | 长沙信元电子科技有限公司 | The Decorative frame of a kind of convertible player and installation method thereof |
| CN106504661A (en) * | 2016-12-27 | 2017-03-15 | 长沙信元电子科技有限公司 | A kind of transmission module protection based on elastic force of convertible player |
| CN106531002A (en) * | 2016-12-27 | 2017-03-22 | 长沙信元电子科技有限公司 | Turnover type player transmission device based on modularization |
| CN106683584A (en) * | 2016-12-27 | 2017-05-17 | 长沙信元电子科技有限公司 | Novel transmission device of overturning-type player |
| CN106763608A (en) * | 2016-12-27 | 2017-05-31 | 长沙信元电子科技有限公司 | A kind of convertible player transmission module |
| CN108010456A (en) * | 2018-01-10 | 2018-05-08 | 长安大学 | A kind of three face turnover billboard device based on worm and gear |
| CN108010456B (en) * | 2018-01-10 | 2023-11-10 | 长安大学 | Three-side turning billboard device based on worm gear |
| CN108175657A (en) * | 2018-01-15 | 2018-06-19 | 林学金 | A kind of belt drive structure and massaging manipulator |
| CN109410788A (en) * | 2018-12-04 | 2019-03-01 | 项炜涛 | A kind of energy conservation three surface-turning advertising placard |
| CN111681575A (en) * | 2018-12-04 | 2020-09-18 | 项炜涛 | Three-face turning advertising board device |
| CN111681573A (en) * | 2018-12-04 | 2020-09-18 | 项炜涛 | Three-side turning billboard device |
| CN111681574A (en) * | 2018-12-04 | 2020-09-18 | 项炜涛 | Energy-saving three-side turning billboard device |
| CN111681573B (en) * | 2018-12-04 | 2021-12-28 | 项炜涛 | Three-side turning billboard device |
| CN111681574B (en) * | 2018-12-04 | 2022-01-18 | 深圳市中视同创科技有限公司 | Energy-saving three-side turning billboard device |
| CN111681575B (en) * | 2018-12-04 | 2022-09-13 | 东营超群文化传媒有限公司 | Three-face turning advertising board device |
| CN109345972A (en) * | 2018-12-04 | 2019-02-15 | 项炜涛 | A kind of three surface-turning advertising placard |
| CN111839114A (en) * | 2020-07-28 | 2020-10-30 | 广州千研贸易有限公司 | Product exhibition vehicle with stable clamping and good display effect |
| CN116817148A (en) * | 2023-08-30 | 2023-09-29 | 沈阳华钛实业有限公司 | Device and method for detecting inner end face of casing |
| CN116817148B (en) * | 2023-08-30 | 2023-11-03 | 沈阳华钛实业有限公司 | Device and method for detecting inner end face of casing |
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| CN102768813B (en) | 2014-07-30 |
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