CN218416091U

CN218416091U - Transmission assembly, position adjusting device and wearable device

Info

Publication number: CN218416091U
Application number: CN202222286888.2U
Authority: CN
Inventors: 郑朋; 南奋勇; 朱林
Original assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Current assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-01-31
Anticipated expiration: 2032-08-26

Abstract

The application belongs to the technical field of wearing devices, and particularly relates to a transmission assembly, a position adjusting device and wearing equipment, wherein the transmission assembly comprises a motor, motor teeth and a gear transmission mechanism; the motor is connected with the gear transmission mechanism through motor teeth; the transmission assembly further comprises a connecting sleeve, the connecting sleeve is located between the motor and the gear transmission mechanism, a through hole is formed in the end portion, close to the gear transmission mechanism, of the connecting sleeve, and the through hole is opposite to the input end of the gear transmission mechanism. The transmission assembly is small in assembly difficulty and short in assembly time.

Description

Transmission assembly, position adjusting device and wearable device

Technical Field

The application belongs to the technical field of wearing devices, and particularly relates to a transmission assembly, a position adjusting device and wearing equipment.

Background

With the popularization of intelligent household appliances, wearing devices such as VR glasses and nursing glasses gradually enter daily life; wherein, be provided with position control device usually in the wearing equipment, position control device can adjust the position of lens in order to reach better viewing effect and nursing treatment effect (for example treatment myopia or amblyopia etc.).

At present, a position adjusting device comprises a bracket, and a motor, a gear transmission mechanism and a screw rod transmission mechanism which are arranged on the bracket, wherein the rotary power of the motor is transmitted to the screw rod transmission mechanism through the gear transmission mechanism so as to drive a lens to move; the output shaft of the motor is usually connected with a gear transmission mechanism through motor teeth; when the device is assembled, the gear transmission mechanism is installed in the support and then the gasket is placed in the support, the motor teeth are installed in the support by the aid of the installation tool, in an actual assembly process, the motor teeth are difficult to be installed in place at one time due to the fact that the motor teeth and the gear transmission mechanism are difficult to be meshed and aligned, gears and the gasket in the gear transmission mechanism are easy to be taken out by the installation tool, and accordingly assembly difficulty and assembly time are increased.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a transmission assembly, position control device and wearing equipment, aim at solving among the prior art when the installation motor tooth, gear and packing ring in the gear drive mechanism are taken out by mounting tool easily and lead to the equipment degree of difficulty big and the equipment technical problem of consuming time long.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a transmission assembly comprises a motor, motor teeth and a gear transmission mechanism; the motor is connected with the gear transmission mechanism through the motor teeth;

the transmission assembly further comprises a connecting sleeve, the connecting sleeve is located between the motor and the gear transmission mechanism, a penetrating hole is formed in the end portion, close to the gear transmission mechanism, of the connecting sleeve, and the penetrating hole and the input end of the gear transmission mechanism are arranged oppositely.

Optionally, the inner peripheral wall of adapter sleeve is provided with the butt arch, butt arch extends and encloses to establish along the circumference of adapter sleeve and forms the through-going hole.

Optionally, the transmission assembly further includes a mounting sleeve, the motor tooth is connected to one end of the mounting sleeve, and the mounting sleeve is fixed to the output shaft of the motor and located in the connecting sleeve; the motor tooth follow wear to establish the hole and wear out and with gear drive's input is connected, the installation cover dorsad the terminal surface of motor with the butt arch dorsad gear drive's surface butt.

Optionally, the motor teeth and the mounting sleeve are of an integral design.

Optionally, two end surfaces of the connecting sleeve respectively abut against between the gear transmission mechanism and the motor.

Optionally, the motor is provided with a connecting boss, the connecting boss is inserted into the connecting sleeve, and the outer peripheral wall of the connecting boss is abutted to the inner peripheral wall of the connecting sleeve.

One or more technical solutions in the transmission assembly provided by the present application have at least one of the following technical effects: this drive assembly utilizes the through-going hole on the adapter sleeve to set up with gear drive's input relatively, and when concrete equipment like this, the adapter sleeve can play and block the gear effect in the gear drive to make the gear in the gear drive also be difficult to be taken out by mounting tool, and adopt this drive assembly can cancel the packing ring, also can solve gear and packing ring in the gear drive and be taken out by mounting tool and lead to assembling the degree of difficulty big and assemble long problem of consuming time.

The application adopts another technical scheme that: the utility model provides a position adjusting device, includes support, lead screw drive mechanism and foretell drive assembly, first installation cavity and the first mounting hole that is linked together are seted up to the support, the motor install in on the support, gear drive mechanism install in the first installation cavity, adapter sleeve fixed mounting in the first mounting hole, lead screw drive mechanism install in on the support, gear drive mechanism's output with lead screw drive mechanism's input is connected.

Optionally, the connecting sleeve is in interference fit with the first mounting hole.

Optionally, the outer peripheral wall of the connecting sleeve forms a guide surface, and a gap is formed between the guide surface and the inner peripheral wall of the first mounting hole.

The position adjusting device of this application has adopted foretell drive assembly, has improved the equipment degree of difficulty that this lens was adjusted till, and the equipment is consuming time weak point, and the packaging efficiency is high, is favorable to reducing the cost of manufacture.

The application adopts another technical scheme that: a wearing device comprises the position adjusting device.

The wearing equipment of this application owing to adopted foretell position control device, consequently, has reduced this wearing equipment's the equipment degree of difficulty, and the equipment is short consuming time, and the packaging efficiency is high, is favorable to reducing the cost of manufacture.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a position adjustment device according to an embodiment of the present application.

Fig. 2 is a sectional view of the position adjustment device shown in fig. 1.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is an exploded view of the position adjustment device shown in fig. 1.

Fig. 5 is a schematic structural view of the connecting sleeve shown in fig. 4.

Fig. 6 is a schematic view of the structure of the motor teeth and the mounting sleeve shown in fig. 4.

Fig. 7 is a schematic structural diagram of the gear transmission mechanism shown in fig. 4 after the inner gear ring is hidden.

Fig. 8 is an exploded view of the gear train shown in fig. 4 after the inner gear ring is concealed.

Wherein, in the figures, the respective reference numerals:

10-support 11-first mounting cavity 12-first mounting hole

13-second mounting cavity 14-third mounting cavity 15-second mounting hole

16-bearing hole 17-fixed hole 20-motor

21-connecting boss 31-mounting sleeve 32-motor tooth

40-gear transmission mechanism 41-ring gear 42-connecting frame

43-output carrier 44-second gear 45-first gear

50-screw transmission mechanism 51-screw 52-nut

60-connecting sleeve 61-abutting bulge 62-through hole

63-guide surface 71-guide rod 72-first end cap

73-second end cap 74-circuit board 75-bearing

321-positioning column 421-gear column 422-second assembling column

423-positioning hole 424-limit column 431-fixing sleeve

432-first assembling column 433-flange 4312-limiting hole

630 — gap.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in fig. 1-8, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to fig. 1 to 8 are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1 to 8, in an embodiment of the present application, a transmission assembly is provided, which can be used with a support 10 and a screw transmission mechanism 50 to form a position adjusting device, which is suitable for use in a wearing device, and is mainly used for adjusting the position of a lens in the wearing device, so as to achieve better display effect and nursing treatment effect, wherein the wearing device can be nursing glasses, VR glasses, or other devices requiring lens position adjustment.

As shown in fig. 1, fig. 2 and fig. 3, the transmission assembly provided in the embodiment of the present application includes an electric motor 20, a motor tooth 32, a gear transmission mechanism 40 and a connection sleeve 60; the motor 20 is connected with the gear transmission mechanism 40 through motor teeth 32; it is understood that the motor 20 is a power source of the transmission assembly, the rotation power of the output shaft of the motor 20 is transmitted to the gear transmission mechanism 40 through the motor teeth 20, and the gear transmission mechanism 40 transmits the rotation power to the screw transmission mechanism 50 to realize the adjustment of the lens position.

In the present embodiment, the connecting sleeve 60 is located between the motor 20 and the gear transmission mechanism 40, and a through hole 62 is formed at an end of the connecting sleeve 60 close to the gear transmission mechanism 40, and the through hole 62 is opposite to the input end of the gear transmission mechanism 40.

The transmission assembly of this application embodiment, the relative setting of the input that utilizes wear-out hole 62 on the adapter sleeve 60 and gear drive 40, like this when specifically assembling, adapter sleeve 60 can play the effect that blocks the gear in gear drive 40, thereby make the gear in the gear drive 40 also be difficult to be taken out by the mounting tool, and adopt this transmission assembly can cancel the packing ring, also can solve gear and packing ring in the gear drive 40 and be taken out by the mounting tool and lead to the equipment degree of difficulty big and assemble long-lasting problem.

In another embodiment of the present application, an abutting protrusion 61 is provided on the inner peripheral wall of the connecting sleeve 60 of the transmission assembly, and the abutting protrusion 61 extends along the circumferential direction of the connecting sleeve 60 and is surrounded to form a through hole 62; the abutting protrusions 61 limit the gears in the gear transmission mechanism 40 on the whole circumference, the gears in the gear transmission mechanism 40 are prevented from being taken out, the installation difficulty is reduced, and the installation efficiency is improved.

In another embodiment of the present application, the transmission assembly further includes a mounting sleeve 31, the motor teeth 32 are connected to one end of the mounting sleeve 31, and the mounting sleeve 31 is fixed to the output shaft of the motor 20 and located in the connecting sleeve 60; the motor teeth 32 penetrate through the through holes 62 and are connected with the input end of the gear transmission mechanism 40, and the end face, back to the motor 20, of the mounting sleeve 31 is abutted with the surface, back to the gear transmission mechanism 40, of the abutting protrusion 61. It can be understood that the output shaft of the electric motor 20, the mounting sleeve 31 and the motor teeth 32 are coaxially connected, and the output shaft of the electric motor 20 rotates to drive the mounting sleeve 31 and the motor teeth 32 to rotate around the axis of the motor teeth 32, so as to transmit the rotation power of the output shaft of the electric motor 20. In addition, the whole circumference of the mounting sleeve 31 is abutted against the abutting projection 61, the abutting reliability of the mounting sleeve 31 is better, the rotating stability of the motor teeth 32 is better, the good concentricity between the motor 20 and the gear transmission mechanism 40 can be ensured, and the transmission efficiency is improved; meanwhile, the size of the position adjusting device in the wearable device is usually small, so that the sizes of the motor 20, the motor teeth 32, the gear transmission mechanism 40, the screw transmission mechanism 50 and other components are usually small, and when the small motor teeth 32 are assembled, the motor teeth 32 are placed in the connecting sleeve 60, penetrate out of the motor teeth 32 through the through holes 62 formed by the abutting protrusions 61 in a surrounding mode, and can be stably and accurately inserted into the gear transmission mechanism 40 and meshed with the gear transmission mechanism 40 to be connected, so that the installation difficulty of the motor teeth 32 can be greatly reduced, and the assembly efficiency is improved; after the motor teeth 32 are inserted into the through holes 62 in place, the positions of the motor teeth 32 relative to the connecting sleeve 60 are relatively fixed, so that the output shaft of the motor 20 and the mounting sleeve 31 of the motor teeth 32 can be accurately mounted subsequently only by aligning the output shaft of the motor 20 with the mounting sleeve 31, and the assembling difficulty of the whole position adjusting device is greatly reduced.

In another embodiment of the present application, the motor teeth 32 and the mounting sleeve 31 of the transmission assembly are integrally designed, specifically, the motor teeth 32 and the mounting sleeve 31 are manufactured in an integrally designed manner, that is, the motor teeth 32 and the mounting sleeve 31 are of an integral structure, wherein the motor teeth 32 and the mounting sleeve 31 can be integrally injection-molded or integrally 3D-printed to obtain components of the integral structure, so that the assembly process can be simplified, the assembly efficiency can be improved, and the motor teeth 32 and the mounting sleeve 31 are of an integral structure, which has good structural strength and is beneficial to improving the stability and reliability of transmission.

In another embodiment of the present application, as shown in fig. 3, two end faces of the connecting sleeve 60 of the transmission assembly are provided to abut against the gear transmission mechanism 40 and the motor 20, respectively. The gear transmission mechanism 40 and the motor 20 can be axially positioned through the connecting sleeve 60, and the structure is simple, and the assembly operation is simpler and more reliable. Meanwhile, compared with a gasket, the connecting sleeve 60 can better position the motor 20 and the gear transmission mechanism 40, so that the output shaft of the motor 20 and the gear transmission mechanism 40 have better concentricity.

In another embodiment of the present application, as shown in fig. 3, the motor 20 of the transmission assembly is provided with a connection boss 21, the connection boss 21 is inserted into the connection sleeve 60, and an outer circumferential wall of the connection boss 21 abuts against an inner circumferential wall of the connection sleeve 60. Specifically, in the process of installing the motor 20 on the bracket 10, the connecting boss 21 of the motor 20 is inserted into the connecting sleeve 60, and the outer peripheral part of the connecting boss 21 and the inner peripheral wall of the connecting sleeve 60 are mutually abutted, so that the radial positioning of the motor 20 in the connecting sleeve 60 can be realized, the output shaft of the motor 20 can be accurately and coaxially connected with the installing sleeve 31, the concentricity of the output shaft of the motor 20 and the gear transmission mechanism 40 is improved, the assembling efficiency is improved, meanwhile, the stability of power transmission can also be ensured, the damage of the gear transmission mechanism 40 is reduced, and the adjusting precision of the lens position is improved.

In another embodiment of the present application, a position adjusting device is provided, which includes a bracket 10, a screw transmission mechanism 50 and the above transmission assembly, the bracket 10 is provided with a first mounting cavity 11 and a first mounting hole 12 that are communicated, a motor 20 is mounted on the bracket 10, a gear transmission mechanism 40 is mounted in the first mounting cavity 11, a connecting sleeve 60 is fixedly mounted in the first mounting hole 12, the screw transmission mechanism 50 is mounted on the bracket 10, the bracket 10 provides a mounting frame body for a component to play a role in supporting the fixed component, it can be understood that the bracket 10 is fixed in the working process of the position adjusting device; the output of the gear drive 40 is connected to the input of the spindle drive 50. It will be appreciated that the motor teeth 32 are rotated by the output shaft of the motor 20 and transmit the rotational power to the screw transmission 50 through the gear transmission 40, and finally the screw transmission 50 converts the rotational power into the translational power, so as to move the lens and adjust the position of the lens.

During assembly, the screw rod 51 transmission mechanism 50 is installed on the support 10, the gear transmission mechanism 40 is installed in the first installation cavity 11, the connection sleeve 60 is installed in the first installation hole 12, the motor teeth 32 penetrate out of the through holes 62 and are meshed with the input end of the gear transmission mechanism 40, finally the motor 20 is installed on the support 10, the output shaft of the motor 20 is connected with the motor teeth 32, and therefore the assembly of the position adjustment device is completed; simultaneously, under the blocking effect of adapter sleeve 60, the gear in the gear drive mechanism 40 also is difficult to be taken out by the mounting tool to cancel the packing ring, can solve gear and packing ring in the gear drive mechanism 40 and be taken out by the mounting tool and lead to the problem that the equipment degree of difficulty is big and the equipment consumes long time, thereby reduced this position control device equipment degree of difficulty, and the equipment is consuming time weak point, and the packaging efficiency is high, is favorable to reducing the cost of manufacture.

The position adjusting device of this application embodiment has adopted foretell drive assembly, has reduced the equipment degree of difficulty of this lens position control, and the equipment is consuming time weak, and the packaging efficiency is high, is favorable to reducing the cost of manufacture. Since the position adjustment device in the embodiment of the present application adopts all technical solutions of all the embodiments described above, all the beneficial effects brought by the technical solutions of the embodiments described above are also achieved, and are not described in detail herein.

In this embodiment, the bracket 10 is provided with a second mounting cavity 13, a third mounting cavity 14 and a second mounting hole 15, the third mounting cavity 14, the second mounting hole 15, the first mounting cavity 11, the first mounting hole 12 and the second mounting cavity 13 are sequentially distributed along the length direction of the bracket 10, the second mounting hole 15 is communicated with the third mounting cavity 14 and the first mounting cavity 11, the second mounting hole 15 is communicated with the first mounting cavity 11 and the second mounting cavity 13, the motor 20 is mounted in the second mounting cavity 13, the lead screw transmission mechanism 50 is mounted in the third mounting cavity 14, the input end of the lead screw transmission mechanism 50 is inserted into the second mounting hole 15 and connected with the output end of the gear transmission mechanism 40, wherein the third mounting cavity 14, the second mounting hole 15, the first mounting cavity 11, the first mounting hole 12 and the second mounting cavity 13 respectively provide mounting spaces for corresponding components, and play a role in protecting the components, thereby ensuring that the position adjusting device safely, efficiently and stably operates; in addition, the motor 20, the gear transmission mechanism 40 and the screw rod transmission mechanism 50 are distributed along the length direction of the support 10, so that the structure of the whole position adjusting device is more compact, the distribution and the installation of all parts are convenient, and meanwhile, the power transmission among the motor 20, the gear transmission mechanism 40 and the screw rod transmission mechanism 50 is transmitted along a straight line, and the improvement of the transmission efficiency and the transmission precision is also facilitated.

In this embodiment, the position adjusting device further includes a first end cap 72, an opening is formed on a side portion of the second mounting cavity 13 facing away from the first mounting cavity 11, the first end cap 72 covers the opening, and meanwhile, two end faces of the motor 20 respectively abut against a cavity wall of the third mounting cavity 14 and the first end cap 72, so that the motor 20 is axially fixed in the cavity of the motor 20, and during assembly, the motor 20 can be loaded into the cavity of the motor 20 through the opening, and then the first end cap 72 is mounted to fix a position.

In this embodiment, the motor 20 is further connected to a circuit board 74, and the circuit board 74 is used to realize the automatic adjustment of the lens position.

In another embodiment of the present application, the connecting sleeve 60 of the position adjusting device is provided with an interference fit with the first mounting hole 12. The fixing mode does not need to adopt other structural parts, has simple structure, can simplify the installation process of the connecting sleeve 60 and improve the assembly efficiency. Of course, in other embodiments, the connecting sleeve 60 may also be fixed in the first mounting hole 12 by screws, bolts, or pins, and the specific fixing manner thereof may be selected according to actual needs, and is not limited herein.

In another embodiment of the present application, as shown in fig. 5 in conjunction, the outer circumferential wall of the connecting sleeve 60 of the position adjusting device is provided to form a guide surface 63, and a gap 630 is formed between the guide surface 63 and the inner circumferential wall of the first mounting hole 12. The arrangement is such that the connecting sleeve 60 can smoothly enter the first mounting hole 12, and the assembly of the position adjusting device is facilitated.

In another embodiment of the present application, as shown in fig. 2, 7 and 8 in combination, there is provided a gear transmission mechanism 40 of the position adjustment device including a ring gear 41, a connection frame 42, an output frame 43, a plurality of first gears 45 and a plurality of second gears 44; a first step surface is formed at the joint of the second mounting hole 15 and the first mounting cavity 11, a second step surface is formed in the second mounting hole 15, the output frame 43 comprises a fixing sleeve 431 and a plurality of first assembling columns 432, the fixing sleeve 431 is inserted into the second mounting hole 15 and is abutted against the second step surface and is sleeved with the input end of the screw rod transmission mechanism 50, the first assembling columns 432 are positioned in the first mounting cavity 11, a flange 433 is arranged at the end part of the fixing sleeve 431, which is close to the first assembling columns 432, the flange 433 is abutted against the first step surface, and a first gear 45 is rotatably mounted on each first assembling column 432; the opposite two sides of the connecting frame 42 are respectively provided with a gear column 421 and a plurality of second assembling columns 422, the gear column 421 is inserted into the central position of the plurality of first gears 45 and is abutted to the end surface of the fixing sleeve 431, each first gear 45 is engaged with the gear column 421, each second assembling column 422 is rotatably provided with a second gear 44, the inner gear ring 41 is fixed in the first mounting cavity 11 and is sleeved outside the connecting frame 42, the second gear 44 and the first gear 45 are engaged with the inner gear ring 41, the motor teeth 32 are inserted into the central position of the plurality of second gears 44, and each second gear 44 is engaged with the motor teeth 32. The gear transmission mechanism 40 is abutted against the first step surface through the flange 433, the fixing sleeve 431 is abutted against the second step surface, and the gear column 421 is abutted against the end surface of the fixing sleeve 431, so that the axial positioning of the gear transmission mechanism 40 is realized; in a specific application, the output shaft of the motor 20 drives the second gear 44 engaged with the motor through the motor teeth 32 to rotate and revolve, the second gear 44 rotates and revolves to drive the connecting frame 42 to rotate, the rotating process of the connecting frame 42 can drive the first gear 45 engaged with the gear column 421 to rotate and revolve, and the rotating and revolving processes of the first gear 45 can drive the fixing sleeve 431 of the output frame 43 to rotate, so that the rotational power input of the screw rod transmission mechanism 50 is realized, and the adjustment of the lens position is realized. Meanwhile, the gear transmission mechanism 40 forms a structure of a planetary gear transmission mechanism, so that the gear transmission mechanism 40 can meet the requirement of small installation space of the wearable device.

In the present embodiment, the outer circumferential wall of the ring gear 41 is connected to the inner circumferential wall of the first mounting cavity 11, and the ring gear 41 may be an integral structure with the bracket 10 or a separate structure, and preferably, the ring gear 41 is integral with the bracket 10, so that the number of parts of the position adjustment device is reduced, and the assembly is facilitated.

In another embodiment of the present application, as shown in fig. 6 and 8, a positioning column 321 is provided on an end surface of the motor tooth 32 of the position adjusting device, which faces away from the mounting sleeve 31, and a positioning hole 423 for inserting the positioning column 321 is provided on the connecting frame 42. Specifically, after the motor teeth 32 are installed in place, the positioning posts 321 can be inserted into the positioning holes 423, and through the matching between the positioning posts 321 and the positioning holes 423, the radial positioning of the motor teeth 32 can be realized, and meanwhile, the good concentricity between the motor teeth 32 and the gear transmission mechanism 40 can be ensured, the stability of power transmission is good, and the transmission efficiency is improved.

In this embodiment, as shown in fig. 7 and 8, in order to ensure good concentricity between the connecting frame 42 and the output frame 43, the limiting post 424 on the gear post 421 is inserted into the limiting hole 4312 on the fixing sleeve 431, so as to improve the stability and reliability of the transmission of the rotational power of the gear transmission mechanism 40 and improve the adjustment accuracy.

In another embodiment of the present application, as shown in fig. 1, 2 and 4, the lead screw transmission mechanism 50 of the position adjustment device includes a lead screw 51 and a nut 52, the nut 52 is screwed on the lead screw, one end of the lead screw 51 is connected with the output end of the gear transmission mechanism 40, specifically, the end of the lead screw 51 is inserted and fixed in the fixing sleeve 431; in a specific application, the lens is mounted on the nut 52, and then the nut 52 moves along the length direction of the screw rod 51 in the process that the gear transmission mechanism 40 drives the screw rod 51 to rotate, so that the position of the lens is adjusted.

In a specific embodiment, in the VR glasses, the number of the nuts 52 may be two, the lead screw 51 has two external threads distributed at intervals along the length direction and having opposite spiral directions, and the two nuts 52 are respectively in threaded fit with the two external threads; two lenses in the VR glasses are respectively installed on two nuts 52, so that when the gear transmission mechanism 40 drives the lead screw 51 to rotate, the two nuts 52 can drive the two lenses to relatively approach or move away, so as to realize distance adjustment, thus realizing distance adjustment between the two lenses to adapt to interpupillary distances of different people and achieve better viewing effect; in addition, the two lenses are driven to move by the same screw rod 51, the two lenses are good in moving consistency, and the adjusting precision is high.

In another embodiment, the number of the nuts 52 is one, and then one of the two lenses is connected to the nut 52, and the other lens is fixed on the shell or the bracket of the wearing device, and the nut 52 moves to drive the lens connected thereto to move relative to the other lens, so that the position adjustment of the lenses can also be realized.

In another embodiment of the present application, as shown in fig. 1, fig. 2 and fig. 4, the position adjusting device further includes a guide rod 71 connected to the bracket 10, the nuts 52 are all provided with a guide hole, the guide rod 71 is arranged along the length direction of the screw rod 51, and the guide rod 71 is slidably inserted into the guide hole; thus, the nut 52 slides along the length direction of the guide rod 71 under the driving of the screw rod 51, the moving smoothness of the nut 52 is good, and the adjusting precision of the lens position is higher. The number of the guide rods 71 can be multiple, and the specific number is selected according to actual needs, which is not listed here.

In this embodiment, a bearing hole 16 is formed in a side wall of the third mounting cavity 14 opposite to the second mounting hole 15, a bearing 75 is connected to an end of the screw rod 51 facing away from the gear transmission mechanism 40, and the bearing 75 is mounted in the bearing hole 16; the end part of the screw rod 51 penetrating into the second mounting hole 15 is connected with the fixing sleeve 431; the position adjusting device further comprises a second end cover 73, wherein the second end cover 73 is inserted and fixed in the bearing hole 16 to prevent the ends of the screw rod 51 and the bearing 75 from being exposed, and thus the position adjusting device plays a role in protection. Fixing holes 17 are formed in two opposite side walls of the third mounting cavity 14, and two ends of the guide rod 71 are respectively inserted and fixed in the two fixing holes 17.

In another embodiment of the present application, there is provided a wearable device including the position adjustment apparatus described above. Specifically, the wearable device may be nursing glasses, VR glasses, or the like.

The wearing equipment of this application embodiment owing to adopted foretell position control device, consequently, has reduced this wearing equipment's the equipment degree of difficulty, and the equipment is consuming time short, and the packaging efficiency is high, is favorable to reducing the cost of manufacture. Because the wearing equipment of this application embodiment has adopted all technical scheme of above-mentioned all embodiments, consequently all beneficial effects that the technical scheme of above-mentioned embodiment brought have equally, no longer give unnecessary detail here.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims

1. A drive assembly, characterized by: comprises a motor, motor teeth and a gear transmission mechanism; the motor is connected with the gear transmission mechanism through the motor teeth;

2. The drive assembly of claim 1, wherein: the internal perisporium of adapter sleeve is provided with the butt arch, the butt is protruding to be followed the circumference of adapter sleeve extends and encloses to establish and form the through-going hole.

3. The drive assembly of claim 2, wherein: the transmission assembly further comprises a mounting sleeve, the motor teeth are connected with one end of the mounting sleeve, and the mounting sleeve is fixedly sleeved on the output shaft of the motor and is positioned in the connecting sleeve; the motor tooth follow wear to establish the hole and wear out and with gear drive's input is connected, the installation cover dorsad the terminal surface of motor with the protruding dorsad of butt gear drive's surface butt.

4. The drive assembly of claim 3, wherein: the motor teeth and the mounting sleeve are designed integrally.

5. The drive assembly of any one of claims 1 to 4, wherein: two end faces of the connecting sleeve are respectively abutted between the gear transmission mechanism and the motor.

6. The drive assembly of any one of claims 1 to 4, wherein: the motor is provided with a connecting boss, the connecting boss is inserted into the connecting sleeve, and the outer peripheral wall of the connecting boss is abutted to the inner peripheral wall of the connecting sleeve.

7. A position adjustment device characterized in that: the transmission assembly comprises a support, a screw rod transmission mechanism and the transmission assembly according to any one of claims 1 to 6, wherein the support is provided with a first mounting cavity and a first mounting hole which are communicated, the motor is mounted on the support, the gear transmission mechanism is mounted in the first mounting cavity, the connecting sleeve is fixedly mounted in the first mounting hole, the screw rod transmission mechanism is mounted on the support, and the output end of the gear transmission mechanism is connected with the input end of the screw rod transmission mechanism.

8. The position adjustment device according to claim 7, characterized in that: the connecting sleeve is in interference fit with the first mounting hole.

9. The position adjustment device according to claim 7, characterized in that: the periphery wall of adapter sleeve forms the spigot surface, the spigot surface with be formed with the clearance between the internal perisporium of first mounting hole.

10. A wearable device, its characterized in that: comprising the position adjustment device according to any one of claims 7 to 9.