CN220232112U

CN220232112U - Pupil distance adjusting structure and head-mounted equipment

Info

Publication number: CN220232112U
Application number: CN202321436584.8U
Authority: CN
Inventors: 郭峰; 李松; 李栋
Original assignee: Play Out Dreams Shanghai Technology Co ltd
Current assignee: Play Out Dreams Shanghai Technology Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-12-22
Anticipated expiration: 2033-06-07

Abstract

The utility model discloses a pupil distance adjusting structure and a head-mounted device, wherein the head-mounted device comprises a pupil distance adjusting structure, two arc-shaped head belts and arc-shaped pads which are oppositely arranged, the two arc-shaped head belts and the pupil distance adjusting structure form a closed loop, a head-mounted space is enclosed by the arc-shaped pads, the head-mounted device is worn by a user, the IPD adjustment is realized through a gear structure in the pupil distance adjusting structure, the locking of two lens barrel components in the pupil distance adjusting structure is realized through a locking device in the pupil distance adjusting structure, and the internal structure is stabilized. The utility model has the advantages that the manual adjustment of the IPD is realized through the interpupillary distance adjusting structure, the operation is simple, the practicability is strong, the use experience of users is improved, and the utility model is suitable for most people.

Description

Pupil distance adjusting structure and head-mounted equipment

Technical Field

The utility model relates to the field of head-mounted equipment, in particular to a pupil distance adjusting structure and head-mounted equipment.

Background

In the prior art, the head-mounted intelligent device is usually a head-mounted virtual reality device, which is also called virtual reality glasses, including VR glasses and AR glasses, and the virtual reality technology is a simulation visual system capable of creating and experiencing a virtual world, and generates a simulation environment, which is a system simulation of multi-source information fusion, interactive three-dimensional dynamic views and entity behaviors, so that a user is immersed in the environment.

The VR glasses are virtual reality head-mounted display devices, are created by means of computer and latest sensor technologies, are brand-new human-computer interaction means, enable users to walk into the virtual world of electronic devices, and are gradually popularized in daily life along with the development of electronic technologies.

The IPD (Interpupillary Distance ) is generally applied to AR/VR glasses, and when in use, a suitable lens barrel distance can be adjusted according to the interpupillary distance of a person, and due to different IPDs of people in different age groups and different areas (america, asia and europe), the use of a VR product is limited and popular, and the popularization and popularization of the product cannot be facilitated.

The AR/VR glasses in the prior art generally adopt a continuous and smooth stepless pupil distance adjustment mode, the self-locking structure of the mode is poor in stability and easy to loosen, and the adjustment operation is troublesome.

Therefore, in order to realize the use universality of a VR product, the design and function implementation effect of IPD regulation is important, and the application can be diversified and suitable for more people and the competitiveness is improved.

Disclosure of Invention

The utility model provides a pupil distance adjusting structure and head-mounted equipment, which are used for solving the problems that the adjustment operation of the existing head-mounted equipment on the pupil distance is too troublesome and the stability of a self-locking structure is poor.

In order to solve the technical problems, the utility model discloses the following technical scheme:

the utility model provides a pupil distance adjusting structure which comprises a bracket, two lens barrel assemblies, two oppositely arranged racks, a gear and a locking device. Each barrel assembly is movably mounted to the bracket; each lens barrel assembly comprises a base plate, and each base plate can slide relative to the bracket in the horizontal direction; forming a gap with adjustable width between the two substrates; the two oppositely arranged racks are respectively and correspondingly connected to the two base plates; the gear is rotatably mounted to the bracket and is arranged opposite to the gap; the gear is positioned between the two racks; the gear is meshed with the two racks; the locking device is used for locking the gear when the lens barrel assembly is moved.

Further, the bracket comprises a first shell and a second shell which are oppositely arranged and connected with each other, and the two shells enclose a cavity; the first shell is provided with two parallel shell through holes; one end of each lens cone assembly provided with a base plate is positioned in the cavity, and the other end of each lens cone assembly penetrates through a shell through hole and extends to the outside of the first shell.

Further, the bracket includes a mounting plate, a base, and a mounting shaft. The mounting plate is arranged in the cavity and is opposite to the two substrates; the base protrudes from the surface of the middle part of the mounting plate, which faces one side of the substrate; the mounting shaft is connected to the base through a first through hole in the middle of the gear, and the gear can rotate on the surface of the mounting shaft.

Further, the bracket is provided with a sliding rod which is fixed to the mounting plate, and the sliding rod is linear; each substrate is provided with at least one mounting part which protrudes out of the surface of one side of the substrate; each mounting part is provided with a guide hole, and the sliding rod slidably penetrates through a plurality of guide holes of the two base plates.

Further, the mounting plate is provided with more than two strip-shaped holes, and the strip-shaped holes extend along the horizontal direction; the bracket further comprises at least one lug and/or claw protruding out of the surface of a substrate, and the lug can be slidably inserted into the strip-shaped hole; the ratio of the length of the lug or the claw in the extending direction of the strip-shaped hole to the length of the strip-shaped hole in the extending direction is any value between 0.3 and 0.8.

Further, the bracket comprises two guide posts, and each guide post protrudes out of the surface of the middle part of the mounting plate, which faces one side of the substrate; the two guide posts are respectively positioned above and below the base and perpendicular to the mounting plate.

Further, the locking device comprises a slider and a spring. The sliding block is installed in a gap between the two substrates; the middle part of the sliding block is provided with a second through hole which is sleeved outside the mounting shaft of the bracket, and the sliding block can slide along the central axis direction of the mounting shaft; the spring is sleeved outside the mounting shaft, one end of the spring is abutted to the sliding block, and the other end of the spring is abutted to the mounting plate.

Further, the surface of the gear facing one side of the sliding block is provided with more than two uniformly distributed first wedge blocks, and a first wedge groove is formed between two adjacent first wedge blocks; the surface of the sliding block facing one side of the gear is provided with more than two second wedge blocks which are uniformly distributed, and a second wedge groove is formed between two adjacent second wedge blocks; when the sliding block is abutted to the gear under the action of the spring, the first wedge-shaped block is clamped into the second wedge-shaped groove, and the second wedge-shaped block is clamped into the first wedge-shaped groove.

Further, a notch or a third through hole is respectively arranged at the top and the bottom of the sliding block; the tail end of each guide post is correspondingly inserted into a notch or a third through hole.

The utility model further comprises a head-mounted device comprising the interpupillary distance adjusting structure.

Compared with the prior art, the utility model has at least the following technical effects:

the utility model provides a pupil distance adjusting structure and a head-mounted device, wherein the pupil distance adjusting structure is arranged on the head-mounted device, two oppositely arranged racks and gear structures in the pupil distance adjusting structure are connected to base plates in two lens cone assemblies, and the distance between the two lens cone assemblies is adjusted through the rack and gear structures, so that the pupil distance adjusting of the head-mounted device is realized, the operation is simple, the practicability is high, the use experience of users is improved, and the head-mounted device is suitable for most people.

Drawings

The technical scheme of the utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of a headset according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a support structure according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an exploded structure of a stent according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an assembly structure of a base plate, a gear and a rack according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the first and second housing structures according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a mounting plate according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a base structure according to an embodiment of the present utility model;

FIG. 8 is a schematic view of an assembled structure of a locking device, a gear and a mounting shaft according to an embodiment of the present utility model;

FIG. 9 is a schematic view of an exploded view of a locking device, gears and mounting shafts according to an embodiment of the present utility model;

FIG. 10 is a schematic view of the internal part of the bracket according to the embodiment of the utility model;

FIG. 11 is a schematic view of a gear structure according to an embodiment of the present utility model;

FIG. 12 is a schematic view of a slider structure according to an embodiment of the present utility model;

FIG. 13 is a schematic view of an assembled structure of a base plate and a slide bar according to an embodiment of the present utility model;

fig. 14 is a schematic view of a substrate structure according to an embodiment of the utility model.

The components in the figure are identified as follows:

10 head-mounted equipment, 11 pupil distance adjusting structure, 12 support, 13 first lens cone assembly, 14 second lens assembly, 15 first rack, 16 second rack, 17 gear, 18 locking device, 19 clearance;

21 a first headband, 22 a second headband; 30 arc pad, 40 head space; 121 a first shell, 122 a second shell, 123 a cavity, 124 a mounting plate, 125 a slide bar, 126 a base, 127 a mounting shaft;

131 a first substrate, 141 a second substrate; 171 first wedge block, 172 first wedge groove; 181 slider, 182 spring; 1211 a first housing through hole, 1212 a second housing through hole; 1242 a first mounting portion; 1261 first guide post, 1262 second guide post, 1263 mounting post, 1264 mounting hole; 1271 a thick shaft portion, 1272 a thin shaft portion; 1311 second mounting portion, 1312 first pawl, 1411 guide aperture, 1412 second pawl; 1811 second wedge, 1812 second wedge-shaped groove, 1813 first gap, 1814 second gap.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

As shown in fig. 1, the present utility model provides a head-mounted device 10, the head-mounted device 10 including a pupil distance adjustment structure 11, two oppositely disposed arcuate head straps 21, 22, and an arcuate pad 30. In this embodiment, the two oppositely disposed arc-shaped bands 21 and 22 are a first band 21 and a second band 22, the pupil distance adjusting structure 11, the first band 21, the second band 22 and the arc-shaped pad 30 form a closed loop, and a wearing space 40 is enclosed for a user to wear.

As shown in fig. 2-4, the interpupillary distance adjusting structure 11 includes a bracket 12, two lens barrel assemblies 13, 14, in this embodiment, the two lens barrel assemblies 13, 14 are a first lens barrel assembly 13 and a second lens barrel assembly 14, two oppositely disposed racks 15, 16, respectively, a first rack 15 and a second rack 16, a gear 17, and a locking device 18. The first barrel assembly 13 and the second lens assembly 14 are movably mounted to the holder 12; the first lens barrel assembly 13 includes a first substrate 131, the second lens assembly 14 includes a second substrate 141, and the first substrate 131 and the second substrate 141 are capable of sliding in a horizontal direction relative to the bracket 12; forming a width-adjustable gap 19 between the first substrate 131 and the second substrate 141; the first rack 15 is connected to the first base plate 131, and the second rack 16 is connected to the second base plate 141; a gear 17 is rotatably mounted to the bracket 12 and is disposed opposite the gap 19, the gear 17 being located between the first rack 15 and the second rack 16; the gear 17 is meshed with the first rack 15 and the second rack 16; when the first barrel assembly 13 and the second lens assembly 14 are moved, the locking device 18 is used to lock the gear 17.

As shown in fig. 3 and 5, the bracket 12 includes a first housing 121 and a second housing 122 disposed opposite to each other and connected to each other, and in this embodiment, the first housing 121 and the second housing 122 define a cavity 123; the first casing 121 is provided with two parallel casing through holes 1211 and 1212, namely a first casing through hole 1211 and a second casing through hole 1212, and one side of the second casing 122, which faces away from the first casing 121, is also provided with a cover plate 40, so that a user can watch a real scene through the cover plate 40; one end of the first lens barrel assembly 13 provided with the first substrate 131 is positioned in the cavity 123, one end of the second lens assembly 14 provided with the second substrate 141 is also positioned in the cavity 123, and the other end of the first lens barrel assembly 13 passes through the first shell through hole 1211 and extends to the outside of the first shell 121; the other end of the second lens assembly 14 passes through the second housing through hole 1212 and extends to the outside of the first housing 121, in this embodiment, the size of the first housing through hole 1211 is preferably larger than the size of the end of the first lens barrel assembly 13 extending to the outside of the first housing 121, the size of the second housing through hole 1212 is larger than the size of the end of the second lens assembly 14 extending to the outside of the first housing 121, the adjustable space is given to the first lens barrel assembly 13 and the second lens assembly 14, and the limiting effect is also provided to the first lens barrel assembly 13 and the second lens assembly 14, and the internal structure of the head-mounted device 10 is prevented from being damaged due to the limited length of the first rack 15 and the second rack 16, and the excessive adjustment of the customer is prevented from causing the first rack 15 and the second rack 16 to separate from the gear 17.

As shown in fig. 3 and fig. 5-6, the cavity 123 of the bracket 12 includes a mounting plate 124 and a base 126, the mounting plate 124 is disposed in the cavity 123 and opposite to the first substrate 131 and the second substrate 141; the base 126 is mounted on the mounting plate 124, and the base 126 is disposed on a surface protruding from a side of the middle portion of the mounting plate 124 facing the first substrate 131 and the second substrate 141, in this embodiment, the base 126 is provided with a mounting post 1263, the mounting post 1263 protrudes from the middle portion of the mounting plate 124 facing the first substrate 131 and the second substrate 141, and the mounting post 1263 is provided with a mounting hole 1264.

As shown in fig. 3 and 7, the bracket 12 includes two guide posts 1261 and 1262, in this embodiment, the two guide posts 1261 and 1262 are a first guide post 1261 and a second guide post 1262, respectively, and the first guide post 1261 and the second guide post 1262 protrude from the surfaces of the middle portion of the mounting plate 124 facing the first substrate 131 and the second substrate 141; the first guide post 1261 and the second guide post 1262 are respectively located above and below the base 126 and perpendicular to the mounting plate 124.

As shown in fig. 7-10, the bracket 12 includes a mounting shaft 127, the locking device 18 includes a slider 181 and a spring 182, the gear 17, the slider 181 and the spring 182 are sleeved on the mounting shaft 127, the slider 181 is mounted in a gap 19 between the first base plate 131 and the second base plate 141, the slider 181 can slide along a central axis direction of the mounting shaft 127, the gear 17 can rotate on a surface of the mounting shaft 127, in this embodiment, the mounting shaft 127 includes a thick shaft 1271 and a thin shaft 1272, the gear 17 and the slider 181 are mounted on the thick shaft 1271 of the mounting shaft 127, the spring 182 is sleeved on the thin shaft 1272 of the mounting shaft 127, the thin shaft 1272 can be inserted into a mounting hole 1264 of a mounting post 1263 on the base 126, one end of the spring 182 is abutted to the slider 181, the other end of the spring 182 is abutted to the base 126, when the pupil distance adjustment is performed, the gear 17 causes the slider 181 to slide in a direction away from the gear 17, at this time, the spring 182 provides an elastic force, the slider 181 is pressed, the spring 181 is provided in a direction of the slider 17, the thick shaft 1271 is sleeved on the thin shaft 1271 of the mounting shaft 127, the thin shaft 1272 is sleeved on the thin shaft 1272 of the mounting shaft 127, the thin shaft 1272 is inserted into a mounting post 1263, the mounting post 1263 is mounted on the mounting hole 1263, and the other end is abutted to the base 126.

As shown in fig. 9 and fig. 11-12, the surface of the gear 17 facing the side of the slider 18 is provided with more than two uniformly distributed first wedge blocks 171, and a first wedge groove 172 is formed between two adjacent first wedge blocks 171; the surface of the slider 181 facing the side of the gear 17 is provided with more than two second wedge-shaped blocks 1811 which are uniformly distributed, a second wedge-shaped groove 1812 is formed between two adjacent second wedge-shaped blocks 1811, the first wedge-shaped block 171 is opposite to the second wedge-shaped groove 1812, and the first wedge-shaped groove 172 is opposite to the second wedge-shaped block 1811; when the slider 18 is abutted to the gear 17 under the action of the spring 182, the first wedge 171 is clamped into the second wedge-shaped groove 1812, the second wedge-shaped block 1811 is clamped into the first wedge-shaped groove 172, when the gear 17 rotates, the first wedge 171 of the gear 17 can rotate from one second wedge-shaped groove 1812 to the next second wedge-shaped groove 1812, during movement, the first wedge 171 can abut against one second wedge-shaped block 1811 to enable the slider 18 to slide in a direction away from the gear 17, at the moment, the slider 18 presses the spring 182, the spring 182 provides an elastic force to give the slider 181 a tendency to slide in the direction of the gear 17, and when the first wedge-shaped block 171 rotates to be opposite to the next second wedge-shaped groove 1812, the elastic force provided by the spring 182 can enable the slider 18 to slide in the direction of the gear 17, at the moment, the first wedge-shaped block 171 is clamped into the second wedge-shaped groove 1812 again, and the second wedge-shaped block 1811 is clamped into the first wedge-shaped groove 172 again.

As shown in fig. 7 and 12, a first notch 1813 is formed at the top of the slider 18, a second notch 1814 is formed at the bottom of the slider 18, or a first third through hole 1813 is formed at the top of the slider 18, and a second third through hole 1814 is formed at the bottom of the slider 18; in this embodiment, it is preferable that the first notch 1813 and the second notch 1814 are formed, the end of the first guide post 1261 is inserted into the first notch 1813, the end of the second guide post 1262 is inserted into the second notch 1814, the first guide post 1261 and the second guide post 1262 are respectively inserted into the first notch 1813 and the second notch 1814 to fix the slider 18, so as to prevent the slider 18 from rotating along with the rotation of the gear 17, and the locking of the first lens barrel assembly 13 and the second lens assembly 14 cannot be achieved.

As shown in fig. 6 and fig. 13-14, the bracket 12 is provided with a sliding rod 125, the sliding rod 125 is in a straight line and is fixed to the mounting plate 124, at least one first mounting portion 1242 is provided on the mounting plate 124, and the sliding rod 125 passes through each first mounting portion 1242 in turn; the first substrate 131 and the second substrate 141 are provided with at least one second mounting portion 1311, and the second mounting portion 1311 protrudes from the same side surface of the first substrate 131 and the second substrate 141; each of the second mounting portions 1311 is provided with a guide hole 1411, and the slide bar 125 sequentially slidably passes through the guide hole 1411 of each of the second mounting portions 1311, so that the first substrate 131 and the second substrate 141 slide along the extending direction of the slide bar 125, preferably, the first substrate 131 slides along the extending direction of one end of the slide bar 125 and the second substrate 141 slides along the extending direction of the other end of the slide bar 125.

The mounting plate 124 is provided with two or more bar-shaped holes 1241 extending in the horizontal direction; the bracket 12 further includes at least one protrusion and/or claw, in this embodiment, preferably, the claws 1312 and 1412, the first substrate 131 is provided with at least two first claws 1312, the second substrate 141 is provided with at least two second claws 1412, the first claws 1312 protrude from the surface of the first substrate 131, the second claws 1412 protrude from the surface of the second substrate 141, the first claws 1312 of the first substrate 131 and the second claws 1412 of the second substrate 141 are disposed opposite to the bar holes 1241 of the mounting plate 124, and each claw 1312 and 1412 is slidably inserted into each bar hole 1241; the ratio of the length of each jaw 1312, 1412 in the extending direction of each bar-shaped hole 1241 to the length of each bar-shaped hole 1241 in the extending direction thereof is any value between 0.3 and 0.8, so that a certain sliding space of each jaw 1312, 1412 in each bar-shaped hole 1241 is ensured, and each jaw 1312, 1412 is limited at the same time, and the first rack 15 and the second rack 16 are prevented from being separated from the gear 17.

In an application scenario, for example, when the initial interpupillary distance of the first lens barrel assembly 13 and the second lens assembly 14 of the head-mounted device 10 is not suitable for the interpupillary distance of the glasses of the user, the user needs to manually adjust the first lens barrel assembly 13 and the second lens assembly 14, pull the first lens barrel assembly 13 and the second lens assembly 14 to adjust along opposite directions or deviating directions, when a certain large force is given to the first lens barrel assembly 13 and the second lens assembly 14, the first lens barrel assembly 13 and the second lens assembly 14 realize interpupillary distance adjustment through the first rack 15, the second rack 16 and the gear 17, the user pulls the first lens barrel assembly 13 and the second lens assembly 14 to drive the gear 17 to rotate, the first wedge 171 of the gear 17 can rotate from the second wedge 1812 to the next second wedge 1812, during the movement, the first wedge 171 can slide in the direction away from the gear 17, the slider 18 provides a spring 182, the spring 182 provides a spring force to the slider 18, the second wedge 17 is provided in the direction opposite to the first wedge 181, and the second wedge 171 can slide down the first wedge 1812 again toward the second wedge 1812, and the second wedge 17 is again locked in the opposite directions to the second wedge 1812, and the second wedge 17 can slide down toward the first wedge 181 and the second wedge assembly 18 is again rotated toward the second wedge assembly, thereby realizing the opposite direction of the first wedge 17.

The utility model has the advantages of, install pupil distance adjusting structure to head-mounted device, rack and gear structure through two relative settings in the pupil distance adjusting structure, and connect the rack of two relative settings to the base plate in two lens cone assemblies, distance between two lens cone assemblies is adjusted through rack and gear structure, realize the pupil distance of head-mounted device and adjust, the locking between two lens cone assemblies is realized to the rethread locking device, this application easy operation, the practicality is strong, improve user's use experience and feel, be applicable to most crowd.

The pupil distance adjusting structure and the head-mounted device provided by the embodiment of the utility model are described in detail, and specific examples are applied to the description of the principle and the implementation mode of the utility model, and the description of the above embodiments is only used for helping to understand the technical scheme and the core idea of the utility model; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. An interpupillary distance adjusting structure, characterized by comprising:

a bracket;

two lens barrel assemblies movably mounted to the bracket; each lens barrel assembly comprises a base plate, and each base plate can slide relative to the bracket; forming a gap with adjustable width between the two substrates;

the two oppositely arranged racks are respectively and correspondingly connected to the two base plates;

a gear rotatably mounted to the bracket and disposed opposite the gap; the gear is positioned between the two racks; the gear is meshed with the two racks; and

and the locking device is used for locking the gear after the lens barrel assembly is moved.

2. The pupil distance adjusting structure of claim 1,

the bracket comprises a first shell and a second shell which are oppositely arranged and connected with each other, and the two shells enclose a cavity; the first shell is provided with two parallel shell through holes;

one end of each lens cone assembly provided with a base plate is positioned in the cavity, and the other end of each lens cone assembly penetrates through a shell through hole and extends to the outside of the first shell.

3. The pupil distance adjusting structure of claim 1,

the bracket comprises:

the mounting plate is arranged in the cavity and is opposite to the two substrates;

a base protruding from a surface of the middle portion of the mounting plate toward one side of the substrate; and

and the mounting shaft is connected to the base through a first through hole in the middle of the gear, and the gear can rotate on the surface of the mounting shaft.

4. The pupil distance adjusting structure of claim 3,

the bracket is provided with a sliding rod which is fixed to the mounting plate;

each substrate is provided with at least one mounting part which protrudes out of the surface of one side of the substrate;

each mounting part is provided with a guide hole, and the sliding rod slidably penetrates through a plurality of guide holes of the two base plates.

5. The pupil distance adjusting structure of claim 3,

the mounting plate is provided with more than two strip-shaped holes which extend along the horizontal direction;

the bracket further comprises at least one lug and/or claw protruding out of the surface of a substrate, and the lug can be slidably inserted into the strip-shaped hole;

the ratio of the length of the lug or the claw in the extending direction of the strip-shaped hole to the length of the strip-shaped hole in the extending direction is any value between 0.3 and 0.8.

6. The pupil distance adjusting structure of claim 3,

the bracket comprises

Two guide posts protruding from the surface of the middle part of the mounting plate facing to one side of the substrate; the two guide posts are respectively positioned above and below the base and perpendicular to the mounting plate.

7. The pupil distance adjustment structure of claim 1, wherein the locking device comprises:

a slider mounted in a gap between the two substrates; the middle part of the sliding block is provided with a second through hole which is sleeved outside the mounting shaft of the bracket, and the sliding block can slide along the central axis direction of the mounting shaft; and

and one end of the spring is abutted to the sliding block, and the other end of the spring is abutted to the mounting plate.

8. The pupil distance adjustment structure of claim 7,

more than two first wedge-shaped blocks which are uniformly distributed are arranged on the surface of the gear, facing one side of the sliding block, and a first wedge-shaped groove is formed between two adjacent first wedge-shaped blocks;

the surface of the sliding block facing one side of the gear is provided with more than two second wedge blocks which are uniformly distributed, and a second wedge groove is formed between two adjacent second wedge blocks;

when the sliding block is abutted to the gear under the action of the spring, the first wedge-shaped block is clamped into the second wedge-shaped groove, and the second wedge-shaped block is clamped into the first wedge-shaped groove.

9. The pupil distance adjustment structure of claim 7,

the top and the bottom of the sliding block are respectively provided with a notch or a third through hole;

the tail end of each guide post is correspondingly inserted into a notch or a third through hole.

10. A head-mounted device comprising the pupil distance adjustment structure of any of claims 1-9.