CN102937230B - Multistage angular adjustment device and display device thereof for electronic product - Google Patents
Multistage angular adjustment device and display device thereof for electronic product Download PDFInfo
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- CN102937230B CN102937230B CN201110233634.8A CN201110233634A CN102937230B CN 102937230 B CN102937230 B CN 102937230B CN 201110233634 A CN201110233634 A CN 201110233634A CN 102937230 B CN102937230 B CN 102937230B
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Abstract
The invention discloses a multistage angular adjustment device and a display device thereof for an electronic product. The angular adjustment device comprises a fixed base and a switch assembly, wherein a fixed part is arranged on the fixed base and provided with a fixed part surface, and a pivot protrudes out of the fixed part surface; the switch assembly corresponds to the fixed part surface and comprises a locking ring, a first fluted disc and a second fluted disc, the first and second fluted discs are pivoted on the pivot, the inner wall surface of the locking ring is provided with at least one protruding block, the first fluted disc is provided with at least one abutted slope which corresponds to the at least one protruding block and is provided with a first end and a second end, the distance between the first end and the fixed part surface is larger than that between the second end and the fixed part surface, the first fluted disc is arranged in the locking ring, the at least one protruding block abuts against the abutted slope, and the first fluted disc corresponds to the second fluted disc. The angular adjustment device can adjust different angles to provide a plurality of visual angular effects for users.
Description
Technical field
The present invention relates to a kind of angular adjustment apparatus, particularly relate to a kind of multi-section type angular adjustment apparatus.
Background technique
These several years recently, the electronic products such as the product of tablet PC, flat-panel screens, global positioning system, POS, touch-control type or handheld apparatus, more and more extensively use by masses.
Traditionally, carry these electronic products and in order to the device of angular adjustment as torsion hinge, really the effect of adjustment angle can be reached, but support the rotary component of Different Weight, when sharing same rotary support seat, because of the rotary component of multiple Different Weight, the torsion of needs can not be identical, so the rotary support seat of torsion hinge cannot be shared.Therefore propose the rotary component that can support Different Weight, and share the device of same rotary support seat, one of direction having become this field to make great efforts.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned defect in order to overcome prior art, a kind of electronic product multi-section type angular adjustment apparatus and electronic product display device thereof are provided, it has the function of multi-section type angular adjustment, and the device overcoming angular adjustment is traditionally when carrying the rotation component of Different Weight, cannot share the problem of same rotary support seat.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of electronic product multi-section type angular adjustment apparatus, its feature is, comprising:
One fixed base, it is arranged a fixed block, and wherein this fixed block has a fixed block surface, and a pivot protrudes from this fixed block surface;
One corresponds to the switch block on this fixed block surface, this switch block comprises a lock ring, one the first fluted disc and be articulated on pivot is articulated in the second fluted disc on pivot, the internal face of this lock ring has at least one projection, this first fluted disc arrange at least one pair of should at least one projection support inclined-plane, this is supported inclined-plane and has a first end and one second end, this first end is greater than the distance of this second end apart from this fixed block surface apart from the distance on this fixed block surface, this first fluted disc is installed among this lock ring, this projection is resisted against this and supports inclined-plane, this first fluted disc is mutually corresponding with this second fluted disc, and
One swivel assembly being hubbed at this switch block, this swivel assembly at least comprises a rotary seat, and this rotary seat is connected to this second fluted disc.
Preferably, this first fluted disc has one first serrated face, and this second fluted disc has one second serrated face, and this first serrated face of this first fluted disc is adjacent to this second serrated face of this second fluted disc, and wherein this first fluted disc has a fluted disc surface of contact, this fluted disc surface of contact arranges at least one chute.
Preferably, this chute is a side chute, and be arranged at the one end near this fixed block surface, this is supported inclined-plane and takes shape in this side chute.
Preferably, this chute is a central chute, is arranged at the central authorities of this fluted disc surface of contact, and this is supported inclined-plane and takes shape in this central chute.
Preferably, the outer wall of this lock ring arranges a press part, and when this projection is positioned at this first end, this swivel assembly can freely pivotable, and when this projection is positioned at this second end, this swivel assembly is fixed.
Preferably, this switch block more comprises an elastic component, and this elastic component is located between this fixed block surface and this first fluted disc.
Present invention also offers a kind of electronic product display device, its feature is, comprising:
One fixed base, it is arranged a fixed block, and wherein this fixed block has a fixed block surface, and a pivot protrudes from this fixed block surface;
One corresponds to the switch block on this fixed block surface, this switch block comprises a lock ring, one the first fluted disc and be articulated on pivot is articulated in the second fluted disc on pivot, the internal face of this lock ring has at least one projection, this first fluted disc arrange at least one pair of should at least one projection support inclined-plane, this is supported inclined-plane and has a first end and one second end, this first end is greater than the distance of this second end apart from this fixed block surface apart from the distance on this fixed block surface, this first fluted disc is installed among this lock ring, this projection is resisted against this and supports inclined-plane, this first fluted disc is mutually corresponding with this second fluted disc, and
One swivel assembly being hubbed at this switch block, this swivel assembly comprises a rotary seat and a fixing base for Electronic product, and this rotary seat is connected to this second fluted disc, and this fixing base for Electronic product and this rotary seat are interconnected; And
One electronic product being fixedly arranged on this fixing base for Electronic product.
Preferably, the internal face of this first fluted disc and this lock ring has a fluted disc surface of contact, and this fluted disc surface of contact arranges at least one chute, and this is supported inclined-plane and takes shape in this chute.
Preferably, this first end is greater than the distance of this second end apart from this fixed block surface apart from the distance on this fixed block surface, and when this projection is positioned at this first end, this swivel assembly can freely pivotable, and when this projection is positioned at this second end, this swivel assembly is fixed.
Positive progressive effect of the present invention is: multi-section type angular adjustment apparatus of the present invention, can according to the demand of user, such as, work in upper or amusement and recreation, when need use different amount, the angle that the present invention can provide adjustment different, to reach the effect that user has multiple visual angle.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view showing electronic product multi-section type angular adjustment apparatus of the present invention.
Fig. 2 A is that the switch block showing electronic product multi-section type angular adjustment apparatus of the present invention does not rotate the stereogram of swivel assembly in primary importance.
Fig. 2 B is that the switch block showing electronic product multi-section type angular adjustment apparatus of the present invention rotates the stereogram of swivel assembly in primary importance.
Fig. 2 C is the switch block that the shows electronic product multi-section type angular adjustment apparatus of the present invention stereogram in the second place.
Fig. 3 is the front view of the side chute showing electronic product multi-section type angular adjustment apparatus of the present invention.
Fig. 4 A is the stereogram of switch block in primary importance of display another embodiment of the present invention electronic product multi-section type angular adjustment apparatus.
Fig. 4 B is the stereogram of switch block in the second place of display another embodiment of the present invention electronic product multi-section type angular adjustment apparatus.
Fig. 5 is the decomposing schematic representation showing electronic product multi-section type angular adjustment apparatus of the present invention.
Fig. 6 is the schematic diagram showing electronic product multi-section type angular adjustment apparatus of the present invention.
[primary clustering symbol description]
10 fixed base 101 fixed blocks
1011 fixed block surfaces
102 pivots
103 supporting frames
11 switch block 111 lock rings
1111 press parts
1112 projections
112 elastic components
113 first fluted discs
113A side chute
113B central authorities chute
1131 support inclined-plane
1132 first pivot hole
1133 first serrated faces
1134 fluted disc surface of contact
1135 first ends
1136 second ends
114 second fluted discs
1141 second pivot hole
1142 second serrated faces
12 swivel assembly 121 rotary seats
122 screws
123 fixing base for Electronic products
20 electronic products
H1 first distance
H2 second distance
H3 the 3rd distance
H4 the 4th distance
Embodiment
Present pre-ferred embodiments is provided, to describe technological scheme of the present invention in detail below in conjunction with accompanying drawing.
The present invention proposes a kind of electronic product multi-section type angular adjustment apparatus, it can utilize pivot, fluted disc and lock ring to reach the adjustment of multi-section type angle, and the effect of being fixed, to make operator's convenient adjustment electronic product angle or other similar functions.
Please refer to Fig. 1 and Fig. 5, electronic product multi-section type angular adjustment apparatus of the present invention at least can comprise fixed base 10, switch block 11 and swivel assembly 12.The wherein action of switch block 11, can make swivel assembly 12 reach and rotate or fixing effect.
Fixed base 10 is connected with a fixed block 101, wherein this fixed block 101 has fixed block surface 1011, one pivot 102 protrudes from this fixed block surface 1011, first fluted disc 113 and the second fluted disc 114 are hubbed at pivot 102, specifically pivot 102 corresponds to the first shaping pivot hole 1132 of the first fluted disc 113, and the second pivot hole 1141 that the second fluted disc 114 is shaping.And this pivot 102 wears the first shaping pivot hole 1132 of the first fluted disc 113, and be articulated in the second shaping pivot hole 1141 of the second fluted disc 114.
Switch block 11 corresponds to fixed block surface 1011, and this switch block 11 comprises lock ring 111, be articulated in the first fluted disc 113 on pivot 102 and the second fluted disc 114, first fluted disc 113 is adjacent to the second fluted disc 114.The internal face of this lock ring 111 has projection 1112, this first fluted disc 113 has supports inclined-plane 1131 corresponding to projection 1112, this is supported inclined-plane 1131 and has first end 1135 and the second end 1136, first end 1135 and the second end 1136 form different distances apart from this fixed block surface 1011, this first fluted disc 113 is installed among this lock ring 111, this projection 1112 is resisted against this and supports inclined-plane 1131, and this first fluted disc 113 is mutually corresponding with this second fluted disc 114.
Swivel assembly 12 is hubbed at this switch block 11, and this swivel assembly 12 at least comprises rotary seat 121.This rotary seat 121 is connected to the second fluted disc 114, specifically, this rotary seat 121 is fixed on this second fluted disc 114 in multiple screw 122 screw lock mode, and supporting frame 103 is arranged between this rotary seat 121 and this second fluted disc 114, this supporting frame 103 has the effect supporting this switch block 11, swivel assembly 12 and electronic product 20.
Please refer to Fig. 1 and Fig. 2 A, 2B, the first fluted disc 113 has the first serrated face 1133, and this second fluted disc 114 has the second serrated face 1142, first fluted disc 113 is adjacent to the second fluted disc 114 the second serrated face 1142 with the first serrated face 1133.The fluted disc surface of contact 1134 of the first fluted disc 113 contacts with each other with the internal face of lock ring 111, this fluted disc surface of contact 1134 has at least one side chute 113A near the one end on fixed block surface 1011, this is supported inclined-plane 1131 and takes shape in this side chute 113A, there are 3 side chute 113A in the present embodiment, but not as limit.And the internal face of lock ring 111 has 3 projections 1112, this lock ring 111 is resisted against with this projection 1112 and supports inclined-plane 1131 in this side chute 113A, and this projection 1112 is able to action in side chute 113A, with support inclined-plane 1131 and formed and interfere.Extend outstanding pivot 102 by fixed block surface 1011 and be sequentially connected in series the first fluted disc 113 and the second fluted disc 114.
The outer wall of lock ring 111 arranges a press part 1111, and this press part 1111 can pivotable between the first location and the second location.Wherein primary importance represents swivel assembly 12 and can rotate, and the second place represents swivel assembly 12 and is fixed, cannot rotates.For this embodiment, when this press part 1111 is positioned at this primary importance, projection 1112 is positioned at first end 1135, projection 1112 and support between inclined-plane 1131 and have enough spaces to provide the first serrated face 1133 and the second serrated face 1142 to do relative motion, namely this second fluted disc 114 can rotate, and thus makes swivel assembly 12 can freely pivotable.When this press part 1111 is positioned at this second place, projection 1112 is positioned at the second end 1136, now projection 1112 and support and not have enough spaces do relative motion for the first serrated face 1133 and the second serrated face 1142 between inclined-plane 1131, this first serrated face 1133 engages each other with this second serrated face 1142, therefore the second fluted disc 114 is fixed and cannot rotates, and this swivel assembly 12 is fixed.
Please refer to Fig. 1, Fig. 2 A, Fig. 2 B and Fig. 3, further illustrate.When the press part 1111 of the outer wall of lock ring 111 is in the first position, the projection 1112 of the internal face of lock ring 111 is positioned at the first end 1135 supporting inclined-plane 1131 of this side chute 113A.First end 1135 is the first distance H1 apart from fixed block surface 1011, second end 1136 is second distance H2 apart from fixed block surperficial 1011, because the first distance H1 is greater than second distance H2, namely the area of the fluted disc surface of contact 1134 of the first fluted disc 113 is widened towards the second end 1136 gradually by first end 1135.So when projection 1112 is positioned at first end 1135, when the first fluted disc 113 rotates, the first fluted disc 113 can be allowed relative to projection 1112 translation in first end 1135.Therefore, first serrated face 1133 of this first fluted disc 113 can engage or be located away from the second serrated face 1142 of the second fluted disc 114, second fluted disc 114 can freely be rotated, rotary seat 121 is connected to the second fluted disc 114 opposite side, therefore rotary seat 121 and the second fluted disc 114 have rotation continuous action relation, in other words, due to the second fluted disc 114 not limit by the first fluted disc 113, rotary seat 121 can pivotable arbitrarily, reaches the effect of Multi-section angle-adjusting.
Please refer to Fig. 1, Fig. 2 C and Fig. 3, the press part 1111 of the outer wall of lock ring 111 is pushed in second place process by primary importance, because second distance H2 is less than the first distance H1, therefore press part 1111 presses down in moving process, the projection 1112 of lock ring 111 internal face with support inclined-plane 1131 and produce and interfere, projection 1112 with support coordinating of inclined-plane 1131, by the first fluted disc 113 backup toward the second fluted disc 114.When the press part 1111 of lock ring 111 arrives the second place, the projection 1112 of lock ring 111 inside is positioned at the second end 1136 supporting inclined-plane 1131, to extrude the first fluted disc 113 and to push it against the second fluted disc 114, now the first serrated face 1133 of the first fluted disc 113 and the second sawtooth 1142 face of the second fluted disc 114 engage each other, second fluted disc 114 is fixed and cannot rotates, and then this rotary seat 121 is fixed.
Therefore, by the press part 1111 of lock ring 111 outer wall in the switching of primary importance or the second place, reach that to control rotary seat 121 be the state can rotated or fix.When the press part 1111 of lock ring 111 outer wall is positioned at primary importance, this second fluted disc 114 can rotate, and rotary seat 121 can freely pivotable, therefore can via the angle of rotating rotary seat 121 adjustment and be carried on electronic product 20 on rotary seat 121.When the press part 1111 of lock ring 111 outer wall is positioned at the second place, because the second fluted disc 114 is fixed, cannot rotates, the related rotary seat 121 that makes cannot rotate, and reaches the effect being fixedly carried on electronic product 20 angle on rotary seat 121.Summarize and discuss, when being carried on the angle of electronic product 20 on rotary seat 121 for adjustment, the press part 1111 of lock ring 111 outer wall can be positioned at primary importance, carry out the action adjusting angle, angle to be adjusted is complete, again the press part 1111 of lock ring 111 outer wall is positioned at the second place, reaches the effect of fixing rotary seat 121.
Another embodiment provided by the invention, please refer to Fig. 4 A and Fig. 4 B.Be that the side chute 113A of a upper embodiment changes the middle position being positioned at the fluted disc surface of contact 1134 that the first fluted disc 113 contacts with each other with the internal face of lock ring 111 by least one central chute 113B with previous embodiment difference.There are 3 central chute 113B in the present embodiment, but not as limit.Other fixed bases 10, switch block 11 and swivel assembly 12 can illustrate with reference to previous embodiment.Lock ring 111 internal face of the present embodiment has the projections 1112 that 3 correspond to central chute 113B, and projection 1112 deducts and support inclined-plane 1131 in central chute 113B, makes both carry out relative slip.The pivot 102 outstanding by fixed block surface 1011 is sequentially connected in series the first fluted disc 113 and the second fluted disc 114.
Please refer to Fig. 4 A and Fig. 4 B, when the press part 1111 of the outer wall of lock ring 111 is positioned at primary importance, the projection 1112 of lock ring 111 inside is positioned at the first end 1135 supporting inclined-plane 1131 of central chute 113B, because the 3rd distance H3 (edge on first end 1135 to the first fluted disc 113 adjacent mount surface 1011) is greater than the 4th distance H4 (edge on the second end 1136 to the first fluted disc 113 adjacent mount surface 1011), now the first serrated face 1133 of the first fluted disc 113 and the second serrated face 1142 of the second fluted disc 114 separable, therefore the second fluted disc 114 can rotate, therefore rotary seat 121 can freely pivotable.
When the second place is shifted to by primary importance in the press part 1111 of the outer wall of lock ring 111, because the 3rd distance H3 reduces gradually towards the 4th distance H4, therefore press part 1111 projection 1112 that presses down lock ring 111 inside in moving process with support inclined-plane 1131 and produce and interfere, by the first fluted disc 113 backup toward the second fluted disc 114.Specifically, when the press part 1111 of lock ring 111 is positioned at the second place, the projection 1112 of lock ring 111 inside is positioned at the second end 1136 supporting inclined-plane 1131, to extrude the first fluted disc 113 and to push it against the second fluted disc 114, now the first serrated face 1133 of the first fluted disc 113 and the second sawtooth 1142 face of the second fluted disc 114 engage each other, therefore the second fluted disc 114 will be fixed and cannot rotate, and then this rotary seat 121 is fixed.
In another embodiment, switch block 11 more can comprise the elastic component 112 be located between fixed block surface 1011 and the first fluted disc 113, and such as spring, mode of execution as described below.Please refer to Fig. 1, Fig. 2 A, Fig. 2 B and Fig. 3, now projection 1112 and support between inclined-plane 1131 and have enough spaces to provide the first serrated face 1133 and the second serrated face 1142 to do relative motion, elastic component 112 is located between fixed block surface 1011 and the first fluted disc 113, therefore the second fluted disc 114 often rotates in a tooth process, second fluted disc 114 can by the first fluted disc 113 backup to fixed block surface 1011, when rotation one tooth is complete, then by the elastic component 112 being positioned at the first fluted disc 113 opposite side, by the first fluted disc 113 pushed home, namely fixed block surface 1011 and towards the second serrated face 1142 is pushed away.The joint that now the first serrated face 1133 of the first fluted disc 113 is adjacent with the second serrated face 1142 of the second fluted disc 114 is only the elastic force of elastic component 112, but both slightly contact, and do not affect the rotation of rotary seat 121.Therefore the function of elastic component 112 is, the second fluted disc 114 often rotates in a tooth process, and the second fluted disc 114 is understood by the first fluted disc 113 backup to fixed block surface 1011, when the second fluted disc 114 rotates complete, by elastic component 112 by the first fluted disc 113 pushed home.Moreover just the elastic force of elastic component 112 is enough to the weight supporting electronic product 20, when user is for adjustment angle, do not need hand steeredly to hold electronic product 20.
Please refer to Fig. 5 and Fig. 6, electronic product display device of the present invention at least can comprise fixed base 10, switch block 11, swivel assembly 12 and electronic product 20.Electronic product 20 comprises the electronic product of various different Presentation Function, as common touch screen; Or pocket computer, tablet PC; Or point-of-sale intelligence channel (point of sale is called for short POS, can claims EPOS again, i.e. Electronics at the Point Of Sale) etc.
In the present embodiment, the component such as fixed base 10 and switch block 11 can with reference to illustrating above.And swivel assembly 12 comprises rotary seat 121 and fixing base for Electronic product 123, this rotary seat 121 is connected to this second fluted disc 114, this fixing base for Electronic product 123 is interconnected with this rotary seat 121, swivel assembly 12 can carry out pivotable relative to fixed base 10, and electronic product 20 can be fixed on fixing base for Electronic product 123.
On electronic product display device uses, when user is for adjustment angle, this press part 1111 is positioned at primary importance, and the second fluted disc 114 can rotate, and this swivel assembly 12 is able to freely pivotable, and carries out the visual angle of multi-section type adjustment electronic product 20.When user is for tilt fixing, this press part 1111 is positioned at the second place, and namely the second fluted disc 114 cannot rotate, and this swivel assembly 12 is fixed, and can fix electronic product 20.
Above-mentioned primary importance and the second place are only the purposes coordinating embodiment to illustrate, not for limiting the present invention.
In sum, the present invention at least has the following advantages:
1, the present invention utilizes the effect interfered between fluted disc, and to reach rotation angle or fixing effect, therefore electronic product can be fixed on any angle by user, person's viewing easy to use, reading or operation electronic product.
2, the present invention utilizes pivot, fluted disc and lock ring to reach the adjustment of multi-section type angle, mainly in order to the angular positioning of the article for rotation that can really lock, when supporting the article for rotation of Different Weight, can share same rotary support seat.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these mode of executions, but these change and amendment all falls into protection scope of the present invention.
Claims (9)
1. an electronic product multi-section type angular adjustment apparatus, is characterized in that, comprising:
One fixed base, it is arranged a fixed block, and wherein this fixed block has a fixed block surface, and a pivot protrudes from this fixed block surface;
One corresponds to the switch block on this fixed block surface, this switch block comprises a lock ring, one the first fluted disc and be articulated on pivot is articulated in the second fluted disc on pivot, the internal face of this lock ring has at least one projection, this first fluted disc arrange at least one pair of should at least one projection support inclined-plane, this is supported inclined-plane and has a first end and one second end, this first end is greater than the distance of this second end apart from this fixed block surface apart from the distance on this fixed block surface, this first fluted disc is installed among this lock ring, this projection is resisted against this and supports inclined-plane, this first fluted disc is mutually corresponding with this second fluted disc, and
One swivel assembly being hubbed at this switch block, this swivel assembly at least comprises a rotary seat, and this rotary seat is connected to this second fluted disc.
2. electronic product multi-section type angular adjustment apparatus as claimed in claim 1, it is characterized in that, this first fluted disc has one first serrated face, this second fluted disc has one second serrated face, this first serrated face of this first fluted disc is adjacent to this second serrated face of this second fluted disc, and wherein this first fluted disc has a fluted disc surface of contact, this fluted disc surface of contact arranges at least one chute.
3. electronic product multi-section type angular adjustment apparatus as claimed in claim 2, it is characterized in that, this chute is a side chute, and be arranged at the one end near this fixed block surface, this is supported inclined-plane and takes shape in this side chute.
4. electronic product multi-section type angular adjustment apparatus as claimed in claim 2, it is characterized in that, this chute is a central chute, is arranged at the central authorities of this fluted disc surface of contact, and this is supported inclined-plane and takes shape in this central chute.
5. the electronic product multi-section type angular adjustment apparatus as described in claim 3 or 4, is characterized in that, the outer wall of this lock ring arranges a press part, when this projection is positioned at this first end, this swivel assembly can freely pivotable, and when this projection is positioned at this second end, this swivel assembly is fixed.
6. electronic product multi-section type angular adjustment apparatus as claimed in claim 3, it is characterized in that, this switch block more comprises an elastic component, and this elastic component is located between this fixed block surface and this first fluted disc.
7. an electronic product display device, is characterized in that, comprising:
One fixed base, it is arranged a fixed block, and wherein this fixed block has a fixed block surface, and a pivot protrudes from this fixed block surface;
One corresponds to the switch block on this fixed block surface, this switch block comprises a lock ring, one the first fluted disc and be articulated on pivot is articulated in the second fluted disc on pivot, the internal face of this lock ring has at least one projection, this first fluted disc arrange at least one pair of should at least one projection support inclined-plane, this is supported inclined-plane and has a first end and one second end, this first end is greater than the distance of this second end apart from this fixed block surface apart from the distance on this fixed block surface, this first fluted disc is installed among this lock ring, this projection is resisted against this and supports inclined-plane, this first fluted disc is mutually corresponding with this second fluted disc, and
One swivel assembly being hubbed at this switch block, this swivel assembly comprises a rotary seat and a fixing base for Electronic product, and this rotary seat is connected to this second fluted disc, and this fixing base for Electronic product and this rotary seat are interconnected; And
One electronic product being fixedly arranged on this fixing base for Electronic product.
8. electronic product display device as claimed in claim 7, it is characterized in that, the internal face of this first fluted disc and this lock ring has a fluted disc surface of contact, and this fluted disc surface of contact arranges at least one chute, and this is supported inclined-plane and takes shape in this chute.
9. electronic product display device as claimed in claim 8, it is characterized in that, this first end is greater than the distance of this second end apart from this fixed block surface apart from the distance on this fixed block surface, when this projection is positioned at this first end, this swivel assembly can freely pivotable, when this projection is positioned at this second end, this swivel assembly is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110233634.8A CN102937230B (en) | 2011-08-15 | 2011-08-15 | Multistage angular adjustment device and display device thereof for electronic product |
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| CN201110233634.8A CN102937230B (en) | 2011-08-15 | 2011-08-15 | Multistage angular adjustment device and display device thereof for electronic product |
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| CN102937230B true CN102937230B (en) | 2015-04-29 |
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| CN104358975A (en) * | 2014-10-17 | 2015-02-18 | 徐新华 | Double-pole positioning mechanism for liquid crystal display screen in exhibition |
| CN107138213B (en) * | 2017-07-18 | 2019-01-29 | 奉节县发洋建材制造有限公司 | A kind of building stones crushing device |
| CN112879763B (en) * | 2019-11-29 | 2022-09-02 | 启碁科技股份有限公司 | Wireless communication device and support structure thereof |
| CN111473220B (en) * | 2020-04-03 | 2021-11-30 | 吉林省北联显示技术有限公司 | A display adjustment control structure |
| CN113376312A (en) * | 2021-06-08 | 2021-09-10 | 广东优科检测认证有限公司 | Height-adjustable positioning combustion device of combustion testing machine |
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| CN102937230A (en) | 2013-02-20 |
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