CN211345228U - Three-freedom-degree rotating shaft structure for table lamp - Google Patents
Three-freedom-degree rotating shaft structure for table lamp Download PDFInfo
- Publication number
- CN211345228U CN211345228U CN201922208928.XU CN201922208928U CN211345228U CN 211345228 U CN211345228 U CN 211345228U CN 201922208928 U CN201922208928 U CN 201922208928U CN 211345228 U CN211345228 U CN 211345228U
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- rotating shaft
- damper
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- shaft
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- 239000002184 metal Substances 0.000 claims description 32
- 238000013016 damping Methods 0.000 claims description 11
- 238000010009 beating Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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Abstract
The utility model discloses a three-freedom-degree rotating shaft structure for a desk lamp, which comprises four structural components, wherein a first structural component is connected with a second structural component through an X-direction rotating shaft damper, the second structural component is connected with a third structural component through a Z-direction rotating shaft damper, and the third structural component is connected with a fourth structural component through a Y-direction rotating shaft damper; the first structural component, the second structural component and the fourth structural component are all internally provided with center holes, the third structural component is provided with wiring grooves, and the center holes and the wiring grooves form a wire channel for a desk lamp wire to penetrate through. The utility model discloses an adjacent structural component is connected to the attenuator of three different axial, has realized the three degree of freedom pivot structure of desk lamp to can be hidden walk the desk lamp pivot structure of line, have very high practicality.
Description
Technical Field
The utility model belongs to lamps and lanterns pivot structure field, in particular to three degree of freedom pivot structure for desk lamp.
Background
The desk lamp is an indispensable product in home, life, study and work as a lighting device, is mainly placed on writing desks such as study rooms, bedrooms and studios, desktops such as computer desks and workbenches, and can provide illumination to enable people to read, relax, study and work. With the rapid development of the internet of things, smart homes gradually become a fashion trend that people chase after, and lighting equipment such as lighting table lamps and the like are led to be iteratively evolved towards intelligent science and technology and an art extremely simple direction as fast-moving articles in development; the simple artistic impact makes the structural module of the desk lamp abstract, the appearance is overall simple, and the structural function connection of the desk lamp forms a huge challenge.
After the structure of the lamp on the market is simplified and abstracted, the rotating shaft wiring is not perfectly solved and the rotation of 3-dimensional freedom degree is simply realized, the process assembly of the lamp causes the wires at the wiring positions of the rotating shafts of most products to be leaked, the risk that the wires are accidentally cut and torn in the use process of the desk lamp is increased, the consumers generate unsafe psychology such as electric shock and the like, and the prior art has the defect that the wires are exposed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotatory structure of three degree of freedom can be realized to desk lamp pivot to can be hidden walk the desk lamp pivot structure of line.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a three-freedom-degree rotating shaft structure for a desk lamp comprises a first structural component, a second structural component, a third structural component and a fourth structural component, wherein the first structural component is connected with the second structural component through an X-direction rotating shaft damper to realize free rotation in a first dimension direction, the second structural component is connected with the third structural component through a Z-direction rotating shaft damper to realize free rotation in a second dimension direction, and the third structural component is connected with the fourth structural component through a Y-direction rotating shaft damper to realize free rotation in a third dimension direction; the desk lamp is characterized in that a center hole is formed in each of the first structural component, the second structural component and the fourth structural component, a wiring groove is formed in the third structural component, and the center hole and the wiring groove form a wire channel through which desk lamp wires penetrate. The utility model connects the adjacent structural components through three dampers with different axial directions, thus realizing the three-freedom-degree rotating shaft structure of the desk lamp; one end of the desk lamp wire is connected to the bulb, and the other end of the wire penetrates through a central hole and a wire groove which are formed in each structural component, so that the main body of the wire is prevented from being exposed outside, and the safety of the wire is protected; in addition, in the free rotation process of each dimension of the desk lamp, the lead is arranged in the rotating shaft damper of each joint, and the lead only generates torsion action along with the rotating shaft damper, so that the stretching and dragging actions are avoided, and the durability of the lead is further improved.
Preferably, the X-direction rotating shaft damper consists of an X-direction stator shaft, an X-direction stator fixing metal plate, an X-direction rotor fixing metal plate, a sleeve, a gasket, a friction plate and a fastening nut, wherein one end of the X-direction stator shaft sequentially penetrates through the X-direction stator fixing metal plate, the sleeve, the X-direction rotor fixing metal plate, the gasket and the friction plate and is finally in threaded fastening connection with the fastening nut, and the X-direction rotating shaft damper compresses the friction plate through the fastening nut to provide rotational damping; x passes through fastening screw to the fixed panel beating of stator and fixes at first structural component, X passes through fastening screw to the fixed panel beating of rotor and fixes on the second structural component.
Preferably, a through hole is formed in the center of the X-direction stator shaft of the X-direction rotation shaft damper, one end of the through hole is aligned with the center hole of the first structural member, and the other end of the through hole is aligned with the center hole of the second structural member; the wire channel passes through the through hole of the X-direction rotating shaft damper from the center hole of the first structural component to the center hole of the second structural component, and hidden routing of the free rotating joint of the first dimension is achieved.
Preferably, the Z-direction rotating shaft damper consists of a Z-direction stator shaft, a Z-direction rotor hexagonal sleeve, a Z-direction rotor fixing metal plate, a Z-direction stator fixing metal plate, a friction plate and a fastening nut, wherein one end of the Z-direction stator shaft sequentially penetrates through a gasket, the Z-direction rotor hexagonal sleeve, the Z-direction rotor fixing metal plate, the Z-direction stator fixing metal plate and the friction plate and is finally in threaded fastening connection with the fastening nut, and the Z-direction rotating shaft damper compresses the friction plate through the fastening nut to provide rotational damping; the Z-direction stator fixing metal plate is fixed on the third structural component through fastening screws, and the Z-direction rotor fixing metal plate and the Z-direction rotor hexagonal sleeve are fixed on the second structural component through fastening screws.
Preferably, the wiring groove is formed in the upper end of the third structural component and located above the Z-direction rotating shaft damper, and the wire channel is bent upwards from the center hole of the second structural component at a right angle and is led into the wiring groove of the third structural component, so that hidden wiring of the free rotating joint with the second dimension is achieved.
Preferably, the Y-direction rotating shaft damper consists of a Y-direction stator shaft, a Y-direction rotor shaft, an auxiliary rotating sheath, a gasket, a friction plate and a fastening nut, wherein one end of the Y-direction stator shaft sequentially penetrates through the Y-direction rotor shaft, the gasket and the friction plate and is finally in threaded fastening connection with the fastening nut, and the other end of the Y-direction stator shaft is in matched connection with the auxiliary rotating sheath; the Y-direction stator shaft is rotationally connected with the Y-direction rotor shaft, and the friction plate is compressed by the fastening nut to provide friction force so as to realize the damping effect of the rotating shaft; one end of the fourth structural component, which is close to the Y-direction rotating shaft damper, is provided with a through hole matched with the Y-direction stator shaft, and the Y-direction stator shaft is fixedly connected in the through hole in a clearance fit manner; the third structural component is provided with clamping pieces matched with the third structural component on two sides of the via hole, the Y-direction rotor shaft is fixedly connected in the clamping piece on one side, and the auxiliary rotating sheath is arranged in the clamping piece on the other side in a clearance fit manner.
Preferably, a right-angle groove is formed in a Y-direction stator shaft of the Y-direction rotating shaft damper, the right-angle groove is aligned and connected with a central hole of the fourth structural component, a central hole is formed in the auxiliary rotating sheath, and the central hole is aligned and connected with the right-angle groove; the wire channel passes through a center hole of the auxiliary rotating sheath and a right-angle groove of the Y-direction stator shaft from a wiring groove of the third structural component and finally passes through a center hole of the fourth structural component, and hidden wiring of a free rotating joint of the third dimension is achieved.
The utility model discloses following beneficial effect has:
(1) the desk lamp is connected with adjacent structural components through three dampers in different axial directions, so that a rotating shaft structure with three degrees of freedom is realized;
(2) the nut is rotated to adjust the pressure between the nut and the stator, so that the damping force between the rotor component and the stator component is adjusted;
(3) one end of a wire is connected to a bulb, the wire passes through a through hole of an X-direction rotating shaft damper from a center hole of a first structural component to a center hole of a second structural component, then is bent upwards at a right angle from the center hole of the second structural component to be led into a wire routing groove of a third structural component, then passes through a center hole of an auxiliary rotating sheath and a right-angle groove of a Y-direction stator shaft from the wire routing groove of the third structural component, and finally is led into a center hole of a fourth structural component, so that hidden wiring of free rotating joints with three dimensions is realized, the wire is not exposed, and the safety of the wire is protected; when the pivot is rotatory, the wire part in the attenuator passageway is turned round, avoids the wire to buckle, and the wire is not fragile, has increased the utility model discloses a durability.
Drawings
Fig. 1 is a schematic view of an overall structure of the present invention;
fig. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of one construction of the X-axis damper;
FIG. 4 is an exploded view of an X-axis damper;
FIG. 5 is a schematic view of one construction of a Z-axis damper;
FIG. 6 is an exploded view of a Z-axis damper;
FIG. 7 is a schematic view of one construction of the Y-axis damper;
FIG. 8 is an exploded view of a Y-axis damper;
FIG. 9 is a schematic view of a trace configuration for a Z-axis damper;
FIG. 10 is a schematic view of a trace configuration for a Y-axis damper.
In the figure: 1. a first structural component; 2. a second structural member; 3. a third structural component; 4. a fourth structural member; 5. an X-direction rotating shaft damper; 6. a Z-direction rotating shaft damper; 7. a Y-direction rotating shaft damper; 8. an X-direction stator shaft; 9. fixing metal plates for the X-direction stator; 10. fixing a metal plate on the X-direction rotor; 11. a sleeve; 12. a gasket; 13. a friction plate; 14. fastening a nut; 15. a Z-direction stator shaft; 16. a Z-direction rotor hexagonal sleeve; 17. fixing a metal plate on the Z-direction rotor; 18. fixing metal plates for the Z-direction stator; 19. a Y-direction rotor shaft; 20. a Y-direction stator shaft; 21. an auxiliary rotating sheath; 22. fastening screws; 23. a wiring groove; 24. a via hole; 25. a clip; 26. a right-angle groove; 27. and (4) conducting wires.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and 2, a three-degree-of-freedom rotating shaft structure for a desk lamp is characterized by comprising a first structural component 1, a second structural component 2, a third structural component 3 and a fourth structural component 4, wherein the first structural component is connected with the second structural component through an X-direction rotating shaft damper 5 to realize free rotation in a first dimension direction, the second structural component is connected with the third structural component through a Z-direction rotating shaft damper 6 to realize free rotation in a second dimension direction, and the third structural component is connected with the fourth structural component through a Y-direction rotating shaft damper 7 to realize free rotation in a third dimension direction; the first structural component 1, the second structural component 2 and the fourth structural component 4 are all internally provided with center holes, the third structural component 3 is internally provided with wiring grooves 23, and the center holes and the wiring grooves 23 form a wire channel for a desk lamp wire 27 to penetrate through.
As shown in fig. 3 and 4, the X-direction rotation axis damper 5 is composed of an X-direction stator axis 8, an X-direction stator fixing metal plate 9, an X-direction rotor fixing metal plate 10, a sleeve 11, a gasket 12, a friction plate 13 and a fastening nut 14, wherein one end of the X-direction stator axis 8 sequentially passes through the X-direction stator fixing metal plate 9, the sleeve 11, the X-direction rotor fixing metal plate 10, the gasket 12 and the friction plate 13, and finally is in threaded fastening connection with the fastening nut 14, and the X-direction rotation axis damper 5 compresses the friction plate 13 through the fastening nut 14 to provide rotational damping; the X is fixed at first structural component 1 to the fixed panel beating 9 of stator through fastening screw 22, X is fixed on second structural component 2 to the fixed panel beating 10 of rotor through fastening screw 22. A through hole is formed in the center of an X-direction stator shaft 8 of the X-direction rotating shaft damper 5, one end of the through hole is aligned with the center hole of the first structural component 1, and the other end of the through hole is aligned with the center hole of the second structural component 2; the wire channel passes through the through hole of the X-direction rotating shaft damper 5 from the center hole of the first structural component 1 to the center hole of the second structural component 2, and hidden routing of the free rotating joint with the first dimension is achieved.
As shown in fig. 5, 6 and 9, the Z-axis damper 6 is composed of a Z-axis stator shaft 15, a Z-axis rotor hexagonal sleeve 16, a Z-axis rotor fixing metal plate 17, a Z-axis stator fixing metal plate 18, a friction plate 13 and a fastening nut 14, wherein one end of the Z-axis stator shaft 15 sequentially passes through a gasket 12, the Z-axis rotor hexagonal sleeve 16, the Z-axis rotor fixing metal plate 17, the Z-axis stator fixing metal plate 18 and the friction plate 13, and finally is in threaded fastening connection with the fastening nut 14, and the Z-axis damper 6 compresses the friction plate 13 through the fastening nut 14 to provide rotational damping; the fixed panel beating 18 of Z to the stator passes through fastening screw 22 to be fixed on third structural component 3, the fixed panel beating 17 of Z to the rotor and Z pass through fastening screw 22 to be fixed on second structural component 2 to rotor hexagonal sleeve 16. The wiring groove 23 is arranged at the upper end of the third structural component 3 and is simultaneously positioned above the Z-direction rotating shaft damper 6, and the wire channel is bent upwards from the central hole of the second structural component 2 at a right angle and is led into the wiring groove 23 of the third structural component 3, so that the hidden wiring of the free rotating joint with the second dimension is realized.
As shown in fig. 7, 8 and 10, the Y-axis damper 7 is composed of a Y-axis stator shaft 20, a Y-axis rotor shaft 19, an auxiliary rotating sheath 21, a spacer 12, a friction plate 13 and a fastening nut 14, wherein one end of the Y-axis stator shaft 20 sequentially passes through the Y-axis rotor shaft 19, the spacer 12 and the friction plate 13, and finally is fastened and connected with the fastening nut 14 by screw threads, and the other end of the Y-axis stator shaft 20 is connected with the auxiliary rotating sheath 21 in a matching manner; the Y-direction stator shaft 20 is rotationally connected with the Y-direction rotor shaft 19, and the fastening nut 14 compresses the friction plate 13 to provide friction force to realize the damping effect of the rotating shaft; one end of the fourth structural component 4 close to the Y-direction rotating shaft damper 7 is provided with a through hole 24 matched with the Y-direction stator shaft 20, and the Y-direction stator shaft 20 is fixedly connected in the through hole 24 in a clearance fit manner; the clamping pieces 25 matched with the third structural component 3 are arranged on two sides of the through hole, the Y-direction rotor shaft 19 is fixedly connected in the clamping piece 25 on one side, and the auxiliary rotating sheath 21 is arranged in the clamping piece 25 on the other side in a clearance fit mode. A right-angle groove 26 is formed in the Y-direction stator shaft 20 of the Y-direction rotating shaft damper 7, the right-angle groove 26 is aligned and connected with a central hole of the fourth structural component 4, a central hole is formed in the auxiliary rotating sheath 21, and the central hole is aligned and connected with the right-angle groove 26; the wire channel passes through the center hole of the auxiliary rotating sheath 21 and the right-angle groove 26 of the Y-direction stator shaft 20 from the wiring groove 23 of the third structural component 3, and finally passes through the center hole of the fourth structural component 4, so that the hidden wiring of the free rotating joint with the third dimension is realized.
The utility model discloses an adjacent structural component is connected to the attenuator of three different axial, has realized the three degree of freedom pivot structure of desk lamp, wherein rotates the pressure between adjustable nut of fastening nut and the stator to adjust the damping force between rotor part and the stator part. In addition, one end of a desk lamp wire is connected to a bulb, the wire passes through a through hole of an X-direction rotating shaft damper from a center hole of a first structural component to a center hole of a second structural component, then is bent upwards at a right angle from the center hole of the second structural component to be led into a wire routing groove of a third structural component, then passes through a center hole of an auxiliary rotating sheath and a right-angle groove of a Y-direction stator shaft from the wire routing groove of the third structural component, and finally is led into a center hole of a fourth structural component, so that hidden wiring of free rotating joints with three dimensions is realized, the wire is not exposed, and the safety of the wire is protected; when the pivot is rotatory, the wire part in the attenuator passageway is turned round, avoids the wire to buckle, and the wire is not fragile, has increased the utility model discloses a durability.
Claims (7)
1. The three-freedom-degree rotating shaft structure for the desk lamp is characterized by comprising a first structural component (1), a second structural component (2), a third structural component (3) and a fourth structural component (4), wherein the first structural component is connected with the second structural component through an X-direction rotating shaft damper (5), the second structural component is connected with the third structural component through a Z-direction rotating shaft damper (6), and the third structural component is connected with the fourth structural component through a Y-direction rotating shaft damper (7); the desk lamp wire passage comprises a first structural component, a second structural component and a fourth structural component, wherein a center hole is formed in the first structural component, a wire distributing groove (23) is formed in the second structural component, and the center hole and the wire distributing groove form a wire passage through which desk lamp wires penetrate.
2. The three-freedom-degree rotating shaft structure for the desk lamp as claimed in claim 1, wherein the X-direction rotating shaft damper is composed of an X-direction stator shaft (8), an X-direction stator fixing metal plate (9), an X-direction rotor fixing metal plate (10), a sleeve (11), a gasket (12), a friction plate (13) and a fastening nut (14), one end of the X-direction stator shaft sequentially penetrates through the X-direction stator fixing metal plate, the sleeve, the X-direction rotor fixing metal plate, the gasket and the friction plate and finally is in threaded fastening connection with the fastening nut, and the X-direction rotating shaft damper compresses the friction plate through the fastening nut to provide rotational damping; x passes through fastening screw (22) to the fixed panel beating of stator and fixes at first structural component, X passes through fastening screw to the fixed panel beating of rotor and fixes on the second structural component.
3. The three-degree-of-freedom hinge structure for a desk lamp as recited in claim 2, wherein the X-axis damper has a through hole formed in the center of the X-axis stator, one end of the through hole being aligned with the center hole of the first structural member and the other end being aligned with the center hole of the second structural member; the wire channel passes through the through hole of the X-direction rotating shaft damper from the center hole of the first structural component to the center hole of the second structural component, and hidden routing of the free rotating joint of the first dimension is achieved.
4. The three-freedom-degree rotating shaft structure for the desk lamp as claimed in claim 1, wherein the Z-direction rotating shaft damper is composed of a Z-direction stator shaft (15), a Z-direction rotor hexagonal sleeve (16), a Z-direction rotor fixing metal plate (17), a Z-direction stator fixing metal plate (18), a friction plate and a fastening nut, wherein one end of the Z-direction stator shaft sequentially penetrates through a gasket, the Z-direction rotor hexagonal sleeve, the Z-direction rotor fixing metal plate, the Z-direction stator fixing metal plate and the friction plate and finally is in threaded fastening connection with the fastening nut, and the Z-direction rotating shaft damper compresses the friction plate through the fastening nut to provide rotational damping; the Z-direction stator fixing metal plate is fixed on the third structural component through fastening screws, and the Z-direction rotor fixing metal plate and the Z-direction rotor hexagonal sleeve are fixed on the second structural component through fastening screws.
5. The three-freedom-degree rotating shaft structure for the desk lamp as claimed in claim 4, wherein the wiring groove is formed in the upper end of the third structural component and located above the Z-direction rotating shaft damper, and the wire channel is bent upwards from the central hole of the second structural component at a right angle and penetrates into the wiring groove of the third structural component, so that hidden wiring of the free rotating joint in the second dimension is achieved.
6. The three-freedom-degree rotating shaft structure for the desk lamp as claimed in claim 1, wherein the Y-direction rotating shaft damper is composed of a Y-direction stator shaft (20), a Y-direction rotor shaft (19), an auxiliary rotating sheath (21), a gasket, a friction plate and a fastening nut, one end of the Y-direction stator shaft sequentially penetrates through the Y-direction rotor shaft, the gasket and the friction plate and finally is in threaded fastening connection with the fastening nut, and the other end of the Y-direction stator shaft is in fit connection with the auxiliary rotating sheath; the Y-direction stator shaft is rotationally connected with the Y-direction rotor shaft, and the friction plate is compressed by the fastening nut to provide friction force so as to realize the damping effect of the rotating shaft; one end of the fourth structural component, which is close to the Y-direction rotating shaft damper, is provided with a through hole (24) matched with the Y-direction stator shaft, and the Y-direction stator shaft is fixedly connected in the through hole in a clearance fit manner; clamping pieces (25) matched with the third structural component are arranged on two sides of the through hole, the Y-direction rotor shaft is fixedly connected in the clamping piece on one side, and the auxiliary rotating sheath is arranged in the clamping piece on the other side in a clearance fit mode.
7. The three degree-of-freedom hinge structure for a desk lamp of claim 6 wherein the Y-direction stator shaft of the Y-direction hinge damper is formed with a right angle slot (26) aligned with the center hole of the fourth structural member, and the auxiliary rotating sheath is formed with a center hole aligned with the right angle slot; the wire channel passes through a center hole of the auxiliary rotating sheath and a right-angle groove of the Y-direction stator shaft from a wiring groove of the third structural component and finally passes through a center hole of the fourth structural component, and hidden wiring of a free rotating joint of the third dimension is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922208928.XU CN211345228U (en) | 2019-12-10 | 2019-12-10 | Three-freedom-degree rotating shaft structure for table lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922208928.XU CN211345228U (en) | 2019-12-10 | 2019-12-10 | Three-freedom-degree rotating shaft structure for table lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211345228U true CN211345228U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922208928.XU Expired - Fee Related CN211345228U (en) | 2019-12-10 | 2019-12-10 | Three-freedom-degree rotating shaft structure for table lamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN211345228U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112306144A (en) * | 2020-10-27 | 2021-02-02 | 连云港杰瑞电子有限公司 | Arbitrary parking type spherical two-dimensional degree of freedom operating lever and operating method |
| CN113775637A (en) * | 2021-09-06 | 2021-12-10 | 国网思极紫光(青岛)微电子科技有限公司 | Bidirectional damping rotating shaft |
| CN114370452A (en) * | 2021-12-23 | 2022-04-19 | 湖南立凡嘉信医疗科技有限公司 | Damping support arm for physiotherapy equipment |
-
2019
- 2019-12-10 CN CN201922208928.XU patent/CN211345228U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112306144A (en) * | 2020-10-27 | 2021-02-02 | 连云港杰瑞电子有限公司 | Arbitrary parking type spherical two-dimensional degree of freedom operating lever and operating method |
| CN112306144B (en) * | 2020-10-27 | 2021-12-14 | 连云港杰瑞电子有限公司 | Arbitrary parking type spherical two-dimensional degree of freedom operating lever and operating method |
| CN113775637A (en) * | 2021-09-06 | 2021-12-10 | 国网思极紫光(青岛)微电子科技有限公司 | Bidirectional damping rotating shaft |
| CN114370452A (en) * | 2021-12-23 | 2022-04-19 | 湖南立凡嘉信医疗科技有限公司 | Damping support arm for physiotherapy equipment |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 |
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| CF01 | Termination of patent right due to non-payment of annual fee |