CN114563856A - Interval adjustment mechanism and head-mounted device - Google Patents
Interval adjustment mechanism and head-mounted device Download PDFInfo
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- CN114563856A CN114563856A CN202210298764.8A CN202210298764A CN114563856A CN 114563856 A CN114563856 A CN 114563856A CN 202210298764 A CN202210298764 A CN 202210298764A CN 114563856 A CN114563856 A CN 114563856A
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- worm
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- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 210000005056 cell body Anatomy 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/12—Adjusting pupillary distance of binocular pairs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention belongs to the technical field of head-mounted equipment, and particularly relates to an interval adjusting mechanism and head-mounted equipment; the distance adjusting mechanism comprises a supporting structure, two lens cone structures which are slidably arranged on the supporting structure, a worm which is rotatably arranged on the supporting structure, a worm wheel which is rotatably arranged on the supporting structure and is in meshed transmission with the worm, and an adjusting wheel which is fixed on one end part of the worm, wherein a transmission connecting structure which is used for driving the two lens cone structures to slide in the opposite/opposite directions is arranged between the worm wheel and the two lens cone structures; the head-mounted equipment comprises a shell and an interval adjusting mechanism arranged in a cavity defined by the shell, wherein an adjusting wheel is arranged on the outer side of the shell or the side edge of the adjusting wheel extends to the outer side of the shell. Because the transmission ratio between the worm and the worm wheel is larger, the two lens cone structures can be driven to slide stably in the opposite/deviating direction only by a small force through the worm and gear mechanism, and the problems that the lens cone structures are not stable in adjustment and are difficult to adjust are solved.
Description
Technical Field
The invention belongs to the technical field of head-mounted equipment, and particularly relates to an interval adjusting mechanism and head-mounted equipment.
Background
With the development of technology and the increase of living demands, more and more head-mounted devices are appearing in daily life. Generally, in order to facilitate adaptation to the needs of different users, the spacing between the two barrel structures of the head-mounted device can be adjusted as desired.
Currently, a rack and pinion structure is provided between two lens barrel structures of a head-mounted device, and a gear is driven to rotate by a rotatably mounted adjusting wheel, so that the distance between the two lens barrel structures is adjusted. The main disadvantages are that the adjustment is not stable and the adjustment is laborious.
Disclosure of Invention
The invention aims to provide an interval adjusting mechanism and head-mounted equipment, and aims to solve the problems that a lens cone structure is not stably adjusted and the adjustment is laborious.
The invention is realized in such a way that the distance adjusting mechanism comprises a supporting structure, two lens cone structures which are slidably arranged on the supporting structure, a worm which is rotatably arranged on the supporting structure, a worm wheel which is rotatably arranged on the supporting structure and is in meshing transmission with a spiral tooth part of the worm, and an adjusting wheel which is fixed on one end part of the worm, wherein a transmission connecting structure which is used for driving the two lens cone structures to slide in the opposite/opposite directions is arranged between the worm wheel and the two lens cone structures. As an improvement, the transmission connecting structure comprises a gear which is arranged between the two lens cone structures and is rotatably installed on the supporting structure, racks which extend along the sliding direction of the lens cone structures are respectively arranged on the two lens cone structures, and the two racks are respectively meshed with the upper side and the lower side of the gear for transmission; the worm wheel and the gear are coaxially arranged and fixedly connected.
As an improvement, the worm wheel and the gear are connected into an integral structure.
As an improvement, the worm is arranged between the two lens cone structures and arranged along the extending direction of the lens cone structures, two worm gears which are in meshing transmission with the spiral tooth parts of the worm are respectively arranged at the positions, close to the two lens cone structures, of the worm, the axes of the two worm gears are vertically arranged and are perpendicular to the sliding direction of the lens cone structures, and the transmission connecting structures are respectively arranged between the worm gears and the lens cone structures on the corresponding side;
the transmission connecting structure comprises a shifting piece fixedly connected with the worm wheel or the mounting shaft of the worm wheel and a connecting rod fixed on the lens cone structure, the connecting rod and the mounting shaft of the worm wheel are arranged in the same direction, a guide slide way with an included angle between the shifting piece and the sliding direction of the lens cone structure is arranged on the shifting piece, and the connecting rod is inserted in the guide slide way.
As an improvement, the connecting rod and the poking piece are respectively arranged on the upper side and the lower side of the lens cone structure.
As an improvement, the lens barrel structure includes a barrel body, a lens disposed on a first end of the barrel body, and a display screen disposed on a second end of the barrel body.
As an improvement, the lens barrel assembly further comprises a mounting ring for fixing at the first end of the barrel, the lens being clamped between the mounting ring and the first end of the barrel; connect the installation cell body of the second tip department of barrel, be used for the lid to establish clamp plate on the installation cell body correspond on the tank bottom of installation cell body barrel department is equipped with the tank bottom through-hole, the display screen sets up the mounting groove is internal, the clamp plate lid is established the display screen is kept away from one side of the tank bottom of installation cell body.
The invention also discloses a head-mounted device which comprises a shell and the distance adjusting mechanism arranged in a cavity enclosed by the shell, wherein the adjusting wheel is arranged on the outer side of the shell or the side edge of the adjusting wheel extends to the outer side of the shell.
As an improvement, the supporting structure is the housing, two guide rods arranged at intervals are fixed in a cavity defined by the housing, and each lens barrel structure is respectively connected with the two guide rods in a sliding manner.
As an improvement, a mounting seat is arranged in a cavity defined by the shell and corresponding to the worm, and the worm is rotatably mounted on the mounting seat along the axis direction of the worm.
By adopting the technical scheme, the distance adjusting mechanism comprises a supporting structure, two lens cone structures which are slidably arranged on the supporting structure, a worm which is rotatably arranged on the supporting structure, a worm wheel which is rotatably arranged on the supporting structure and is in meshing transmission with the spiral tooth part of the worm, and an adjusting wheel which is fixed on one end part of the worm, wherein a transmission connecting structure which is used for driving the two lens cone structures to slide in the opposite/opposite directions is arranged between the worm wheel and the two lens cone structures; the head-mounted equipment comprises a shell and an interval adjusting mechanism arranged in a cavity defined by the shell, wherein an adjusting wheel is arranged on the outer side of the shell or the side edge of the adjusting wheel extends to the outer side of the shell. When the adjusting wheel is rotated, the worm can be driven to rotate, the worm is driven to rotate by the worm, and as a transmission connecting structure for driving the two lens cone structures to slide in the opposite/deviating direction is arranged between the worm wheel and the two lens cone structures, the two lens cone structures can be driven to slide in the opposite/deviating direction by the worm and gear mechanism when the adjusting wheel is rotated, so that the distance adjustment is realized; because the transmission ratio between worm and the worm wheel is great, only need just can drive the worm wheel through very little power and rotate, through the slip of two lens cone structures of drive that worm gear mechanism can be steady in opposite directions/the direction that deviates from, solved lens cone structure and adjusted unstability and adjust hard problem.
Drawings
Fig. 1 is a schematic perspective view of a spacing adjustment mechanism according to a first embodiment of the present invention;
fig. 2 is a front view schematically showing a spacing adjustment mechanism according to a first embodiment of the present invention;
fig. 3 is a rear view schematically showing the structure of the spacing adjustment mechanism according to the first embodiment of the present invention;
fig. 4 is a schematic perspective view of a spacing adjustment mechanism according to a second embodiment of the present invention;
11, a guide rod; 20. a lens barrel structure; 21. a rack; 22. a barrel; 23. a mounting ring; 24. installing a groove body; 25. pressing a plate; 26. a lens; 27. a connecting rod; 30. a gear; 41. a worm gear; 42. a worm; 43. an adjustment wheel; 44. installing a shaft; 51. a toggle member; 52. a guide slideway.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 to 4 are schematic structural diagrams of a spacing adjustment mechanism and a head-mounted device according to an embodiment of the present invention, where fig. 1 shows a schematic perspective structural diagram of the spacing adjustment mechanism according to the first embodiment of the present invention, fig. 2 shows a schematic front structural diagram of the spacing adjustment mechanism according to the first embodiment of the present invention, fig. 3 shows a schematic rear structural diagram of the spacing adjustment mechanism according to the first embodiment of the present invention, and fig. 4 shows a schematic perspective structural diagram of the spacing adjustment mechanism according to the second embodiment of the present invention. For the sake of convenience, only the portions related to the embodiments of the present invention are shown in the drawings.
It should be noted that, if the present invention relates to a directional indication (for example, up, down, front, back, etc.), the directional indication is only used to explain the relative position relationship between the components in a specific posture, and if the specific posture changes, the directional indication changes accordingly; if the description of "first", "second", etc. is referred to in this disclosure, then the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicit identification of the number of technical features indicated.
As can be seen from fig. 1 to 4, the distance adjusting mechanism according to the embodiment of the present invention includes a supporting structure, two lens barrel structures 20 slidably mounted on the supporting structure, a worm 42 rotatably mounted on the supporting structure, a worm wheel 41 rotatably mounted on the supporting structure and engaged with the helical teeth of the worm 42 for transmission, and an adjusting wheel 43 fixed on one end of the worm 42, wherein a transmission connecting structure for driving the two lens barrel structures 20 to slide in the opposite/away directions is disposed between the worm wheel 41 and the two lens barrel structures 20.
When the adjusting wheel 43 is rotated, the worm 42 can be driven to rotate, the worm 42 drives the worm wheel 41 to rotate, and because a transmission connecting structure for driving the two lens cone structures 20 to slide in the opposite/deviating directions is arranged between the worm wheel 41 and the two lens cone structures 20, when the adjusting wheel 43 is rotated, the two lens cone structures 20 can be driven to slide in the opposite/deviating directions through the worm wheel and worm mechanism, so that the distance adjustment is realized; because the transmission ratio between the worm 42 and the worm wheel 41 is relatively large, the worm wheel 41 can be driven to rotate only by small force, and the two lens cone structures 20 can be stably driven to slide in the opposite/departing directions by the worm and gear mechanism.
Fig. 1, 2 and 3 show an embodiment of the present invention, the transmission connection structure includes a gear 30 disposed between the two lens barrel structures 20 and rotatably mounted on the supporting structure, two racks 21 extending along the sliding direction of the lens barrel structures 20 are respectively disposed on the two lens barrel structures 20, and the two racks 21 are respectively engaged with the upper and lower sides of the gear 30 for transmission; the worm wheel 41 is arranged coaxially with the gear 30 and is fixedly connected thereto.
When the adjusting wheel 43 is rotated, the worm 42 can be driven to rotate, the gear 30 can be driven to rotate through the meshing transmission of the worm 42 and the worm wheel 41, and the two lens cone structures 20 can be driven to slide in the opposite/deviating directions through the meshing transmission of the gear 30 and the racks 21 of the two lens cone structures 20, so that the distance between the two lens cone structures 20 can be adjusted; because the worm 42 can realize the meshing transmission between the worm 42 and the worm wheel 41 only by being arranged along the tangential direction of the worm wheel 41, the adjusting wheel 43 on the end part of the worm 42 can be arranged at any position of the circumference of the worm wheel 41, the position of the adjusting wheel 43 can be flexibly arranged according to requirements, the transmission ratio between the worm 42 and the worm wheel 41 is relatively large, and the worm wheel 41 can be driven to rotate by small force.
In the embodiment of the present invention, the worm wheel 41 is integrally connected to the gear 30.
The worm wheel 41 and the gear 30 are usually formed as a single piece by injection molding, but may be formed by machining.
In the present embodiment, the lens barrel structure 20 includes a barrel 22, a lens 26 disposed on a first end of the barrel 22, and a display screen disposed on a second end of the barrel 22.
Specifically, the lens barrel assembly further includes a mounting ring 23 for fixing at the first end of the barrel 22, the lens 26 being sandwiched between the mounting ring 23 and the first end of the barrel 22; connect the installation cell body 24 of the second tip department of barrel 22, be used for the lid to establish the clamp plate 25 on the installation cell body 24, correspond barrel 22 department on the tank bottom of installation cell body 24 and be equipped with the tank bottom through-hole, this display screen sets up in installation cell body 24, and this clamp plate 25 lid is established in the one side of the tank bottom that the installation cell body 24 was kept away from to the display screen. Usually, a snap is provided between the mounting ring 23 and the cylinder 22, and the mounting ring and the cylinder are fixed by the snap.
Specifically, the rack 21 may be fixed to a sidewall of the cylinder 22, or may be fixed to the pressing plate 25.
In the embodiment of the present invention, the worm 42 is a single-headed worm, and the helix angle of the worm 42 is smaller than the friction angle between the worm wheel 41 and the worm 42, so that self-locking can be generated between the worm 42 and the worm wheel 41, the worm wheel 41 can be driven to rotate when the worm 42 is rotated, and the worm wheel 41 cannot drive the worm 42 to rotate.
Fig. 4 shows another embodiment of the present invention, which is basically the same as the first embodiment, the worm 42 is disposed between the two lens barrel structures 20 and is disposed along the extending direction of the lens barrel structures 20, two worm wheels 41 which are engaged with the helical teeth of the worm 42 are respectively disposed at two sides of the worm 42 close to the two lens barrel structures 20, the axes of the two worm wheels 41 are vertically disposed and are perpendicular to the sliding direction of the lens barrel structures 20, and transmission connecting structures are respectively disposed between the worm wheels 41 and the lens barrel structures 20 at the corresponding side; the transmission connection structure comprises a shifting piece 51 fixedly connected with the worm wheel 41 or the mounting shaft of the worm wheel 41, and a connecting rod 27 fixed on the lens cone structure 20, wherein the connecting rod 27 is arranged in the same direction as the mounting shaft 44 of the worm wheel 41, a guide slideway 52 with an included angle with the sliding direction of the lens cone structure 20 is arranged on the shifting piece 51, and the connecting rod 27 is inserted in the guide slideway 52.
In the embodiment of the present invention, the connecting rod 27 and the toggle member 51 are respectively disposed on the upper and lower sides of the lens barrel structure 20, so that when the lens barrel structure 20 is pushed to slide, thrust is generated on both the upper and lower sides of the lens barrel structure 20, which can make the sliding of the lens barrel structure 20 more stable.
The invention also relates to a head-wearing device which comprises a shell and the distance adjusting mechanism arranged in a cavity enclosed by the shell, wherein the adjusting wheel 43 is arranged outside the shell or the side edge of the adjusting wheel 43 extends to the outside of the shell.
In the embodiment of the present invention, the supporting structure is a housing, two guiding rods 11 arranged at intervals are fixed in a cavity defined by the housing, and each lens barrel structure 20 is slidably connected with the two guiding rods 11.
Specifically, a mounting seat is arranged in a cavity defined by the housing and corresponds to the worm 42, the worm 42 is rotatably mounted on the mounting seat along the axis direction of the worm, so that the worm 42 can be conveniently mounted and rotated, generally, the mounting seat is an elastic ring body, an opening is formed in one side of the elastic ring body, and the worm 42 can be directly clamped into the elastic ring body through the opening during mounting.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An interval adjusting mechanism comprises a supporting structure, two lens cone structures which are slidably mounted on the supporting structure, and is characterized by further comprising a worm which is rotatably mounted on the supporting structure, a worm wheel which is rotatably mounted on the supporting structure and meshed with a spiral tooth part of the worm for transmission, and an adjusting wheel which is fixed on one end part of the worm, wherein a transmission connecting structure which is used for driving the two lens cone structures to slide in the opposite/opposite directions is arranged between the worm wheel and the two lens cone structures.
2. The spacing adjustment mechanism according to claim 1, wherein said transmission connection structure comprises a gear wheel disposed between said two lens cone structures and rotatably mounted on said support structure, wherein a rack extending along a sliding direction of said lens cone structures is disposed on each of said two lens cone structures, and said two racks are respectively engaged with upper and lower sides of said gear wheel for transmission; the worm wheel and the gear are coaxially arranged and fixedly connected.
3. The spacing adjustment mechanism of claim 2, wherein said worm gear is connected to said gear as a unitary structure.
4. The spacing adjustment mechanism according to claim 1, wherein the worm is disposed between the two lens cone structures and along the extending direction of the lens cone structures, two worm gears engaged with the helical teeth of the worm are respectively disposed at two sides of the worm near the two lens cone structures, the axes of the two worm gears are vertically disposed and perpendicular to the sliding direction of the lens cone structures, and the transmission connection structures are respectively disposed between the worm gears and the corresponding lens cone structures;
the transmission connecting structure comprises a shifting piece fixedly connected with the worm wheel or the mounting shaft of the worm wheel and a connecting rod fixed on the lens cone structure, the connecting rod and the mounting shaft of the worm wheel are arranged in the same direction, a guide slide way with an included angle between the shifting piece and the sliding direction of the lens cone structure is arranged on the shifting piece, and the connecting rod is inserted in the guide slide way.
5. The spacing adjustment mechanism according to claim 4, wherein said connecting rod and said toggle member are respectively disposed on upper and lower sides of said barrel structure.
6. The spacing adjustment mechanism according to any of claims 1 to 5, wherein said barrel structure comprises a barrel, a lens disposed on a first end of said barrel, and a display screen disposed on a second end of said barrel.
7. The spacing adjustment mechanism of claim 6, wherein said lens barrel assembly further comprises a mounting ring for securing at a first end of said barrel, said lens being clamped between said mounting ring and said first end of said barrel; connect the installation cell body of the second tip department of barrel, be used for the lid to establish clamp plate on the installation cell body correspond on the tank bottom of installation cell body barrel department is equipped with the tank bottom through-hole, the display screen sets up the mounting groove is internal, the clamp plate lid is established the display screen is kept away from one side of the tank bottom of installation cell body.
8. A headset comprising a housing, further comprising the spacing adjustment mechanism of any of claims 1 to 7 disposed within a cavity enclosed by the housing, the adjustment wheel being disposed on an exterior side of the housing or extending to an exterior side of the housing at a side edge of the adjustment wheel.
9. The headset of claim 8, wherein the support structure is the housing, two guide rods are fixed in a cavity defined by the housing, and two guide rods are spaced apart from each other, and each of the barrel structures is slidably connected to the two guide rods.
10. The head-mounted apparatus according to claim 9, wherein a mounting seat is provided in the cavity defined by the housing and corresponding to the worm, and the worm is rotatably mounted on the mounting seat along an axial direction of the worm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210298764.8A CN114563856A (en) | 2022-03-23 | 2022-03-23 | Interval adjustment mechanism and head-mounted device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210298764.8A CN114563856A (en) | 2022-03-23 | 2022-03-23 | Interval adjustment mechanism and head-mounted device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114563856A true CN114563856A (en) | 2022-05-31 |
Family
ID=81718982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210298764.8A Pending CN114563856A (en) | 2022-03-23 | 2022-03-23 | Interval adjustment mechanism and head-mounted device |
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| Country | Link |
|---|---|
| CN (1) | CN114563856A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661015A (en) * | 2015-02-06 | 2015-05-27 | 武汉也琪工业设计有限公司 | Virtual reality simulation display equipment of 3D real scene |
| CN204575971U (en) * | 2015-04-23 | 2015-08-19 | 北京小鸟看看科技有限公司 | A kind of head-mounted display |
| CN208547771U (en) * | 2018-07-24 | 2019-02-26 | 深圳惠牛科技有限公司 | A kind of interpupillary distance regulating device and wear display equipment |
| CN112558309A (en) * | 2020-12-28 | 2021-03-26 | 南京爱奇艺智能科技有限公司 | VR mechanism capable of automatically adjusting interpupillary distance |
| CN215219277U (en) * | 2021-06-02 | 2021-12-17 | 福建汉光光电有限公司 | Reflective circular polarizer for head-mounted display |
| US20210405396A1 (en) * | 2020-06-30 | 2021-12-30 | Beijing Boe Optoelectronics Technology Co., Ltd. | Smart glasses |
-
2022
- 2022-03-23 CN CN202210298764.8A patent/CN114563856A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661015A (en) * | 2015-02-06 | 2015-05-27 | 武汉也琪工业设计有限公司 | Virtual reality simulation display equipment of 3D real scene |
| CN204575971U (en) * | 2015-04-23 | 2015-08-19 | 北京小鸟看看科技有限公司 | A kind of head-mounted display |
| CN208547771U (en) * | 2018-07-24 | 2019-02-26 | 深圳惠牛科技有限公司 | A kind of interpupillary distance regulating device and wear display equipment |
| US20210405396A1 (en) * | 2020-06-30 | 2021-12-30 | Beijing Boe Optoelectronics Technology Co., Ltd. | Smart glasses |
| CN112558309A (en) * | 2020-12-28 | 2021-03-26 | 南京爱奇艺智能科技有限公司 | VR mechanism capable of automatically adjusting interpupillary distance |
| CN215219277U (en) * | 2021-06-02 | 2021-12-17 | 福建汉光光电有限公司 | Reflective circular polarizer for head-mounted display |
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