CN209028322U - Headband adjustment mechanism and head-mounted display device - Google Patents

Abstract

The utility model belongs to helmet technical field more particularly to a kind of headband regulating mechanism and wears display equipment；Headband regulating mechanism includes the shell for surrounding slideway, the respectively left headband from the insertion of slideway both ends, right headband, left headband is corresponded in slideway, is respectively equipped with wind spring at right headband, the inner ring end of wind spring is mounted on the inner sidewall of shell, outer ring end is fixedly connected with corresponding headband, and the direction of rotation of two wind springs is opposite；Wearing display equipment includes host and headband regulating mechanism, and the part that left headband, the right headband of the headband regulating mechanism are located on the outside of slideway is fixedly connected with the respective side of host.Left headband, right headband are to mobile and two wind springs of crispaturaing on the outside of slideway under a stretching force, helmet can be worn in user's head under the elastic force effect of two wind springs, it no longer needs to reconnect when wearing every time and tightness is adjusted, solve the problems, such as that wearing and adjusting elasticity degree are inconvenient.

Description

Headband adjustment mechanism and head-mounted display device

technical field

The utility model belongs to the technical field of head-mounted devices, in particular to a head-band adjustment mechanism and a head-mounted display device.

Background technique

At present, there are two ways to fix AR products, VR products and other head-mounted devices. One is to fix it to the user's head in the form of a strap, and the other is to fix it to the user through the structure of the headband and the gear rack. The main disadvantage of the head is that it is inconvenient to wear it on the user's head. Moreover, the degree of tightness needs to be adjusted to meet the needs of the user every time the head-mounted device is worn, and the adjustment of the degree of tightness is also very inconvenient.

Utility model content

The purpose of the utility model is to provide a headband adjustment mechanism and a head-mounted display device, which aims to solve the problems of inconvenient wearing and the need to adjust the tightness after every wearing.

The utility model is realized in this way, a headband adjustment mechanism, the headband adjustment mechanism comprises a shell enclosing a slideway, a left headband and a right headband respectively inserted from both ends of the slideway, There are coil springs in the slideway corresponding to the left headband and the right headband, respectively, and the inner ring end of the coil spring corresponding to the left headband is installed on the inner side wall of the housing, and the outer The loop end is fixedly connected with the left headband, the inner loop end of the coil spring corresponding to the right headband is mounted on the inner side wall of the housing, the outer loop end is connected with the right headband, and the two The direction of rotation of the coil spring is opposite.

As an improvement, in the slideway corresponding to the coil springs are respectively provided with rotating shafts that are rotatably connected to the housing, and the inner ring ends of the coil springs are fixedly connected to the corresponding rotating shafts; the headband The adjusting mechanism further includes a tightness adjusting structure for adjusting the coiling amount of the coil spring and a transmission structure arranged between the two rotating shafts.

As an improvement, the tightness adjustment structure includes an inner gear that is arranged in the slideway and coaxially arranged with one of the rotating shafts, and an adjusting knob that is arranged outside the slideway and is fixedly connected to the rotating shaft. The adjusting knob is connected with a limit tooth that meshes with the inner gear ring; and also includes an elastic member used to reset the adjusting knob after being pressed.

As an improvement, a plurality of transmission teeth are respectively provided on the circumferential direction of the two rotating shafts; the transmission structure includes a gear that meshes with the transmission teeth on the rotating shaft on the side away from the adjustment knob, and the gears are provided with On the side of the rotating shaft away from the adjusting knob, it also includes a toothed belt looped between the gear and the transmission teeth on the rotating shaft fixedly connected with the adjusting knob.

As an improvement, the adjusting knob is provided with a knob connecting column that is inserted into the slideway and fixedly connected to the corresponding rotating shaft, and the limiting teeth are arranged on the knob connecting column; the elastic member is The spring is arranged on the knob connecting column part between the limiting tooth and the rotating shaft.

As an improvement, the limiting tooth includes a ring body sleeved on the knob connecting column, a plurality of tooth bodies spaced along the circumference of the ring body, and between each tooth body and the ring body Connecting arms are respectively arranged between the bodies; the teeth of the inner gear ring are one-way teeth.

As an improvement, an accommodating groove is provided on the outer side of the housing corresponding to the adjusting knob, and the adjusting knob is arranged in the accommodating groove; and a clamping groove is provided on the adjusting knob.

As an improvement, the rotating shaft includes a shaft body, a mounting portion provided on the end of the shaft body, and a fixing cover for matching with the mounting portion, and the inner ring end of the coil spring is clamped at the end of the shaft body. between the mounting portion and the fixing cover.

As an improvement, the mounting portion is in the shape of a semi-cylindrical body; the fixing cover includes a first fixing portion in the shape of a semi-cylindrical body, and the end portion of the first fixing portion is arranged to cover the end of the mounting portion the second fixing part at the part, between the second fixing part and the end of the mounting part, and between the end of the first fixing part far away from the second fixing part and the shaft body, respectively A connecting piece is provided; a positioning column is provided on a side surface of the mounting portion close to the first fixing portion, and a positioning hole is correspondingly provided on the inner ring end of the coil spring.

As an improvement, the casing includes an upper cover and a lower cover that are fastened together, the upper cover and the lower cover are groove-shaped, and the two ends of the upper cover and the lower cover are respectively There are through holes through which the left headband and the right headband pass.

As an improvement, there are corresponding gaps on the end groove wall of the upper cover and the end groove wall of the lower cover, and the two gaps on the end groove wall on the same side are enclosed by the through hole.

As an improvement, guide structures are respectively provided on the inner side wall of the lower cover or the upper cover corresponding to the left headband and the right headband.

As an improvement, the guide structure includes a plurality of pairs of guide columns spaced along the extending direction of the slideway, each pair of the guide columns respectively includes two guide columns spaced along the width direction, and the left headband , the right headband passes through the corresponding pairs of the guide posts in sequence.

The present invention is realized in the following way: a head-mounted display device, the head-mounted display device includes a host, and the headband adjustment mechanism, the left headband and the right headband of the headband adjustment mechanism. The portion located outside the slideway is fixedly connected with the corresponding side of the host.

Due to the adoption of the above-mentioned technical solutions, the headband adjustment mechanism of the present invention comprises a casing enclosing a slideway, a left headband and a right headband respectively inserted from both ends of the slideway, and corresponding to the left headband and the right headband in the slideway. The headbands are respectively provided with coil springs, the inner ring end of the coil spring corresponding to the left headband is installed on the inner side wall of the housing, the outer ring end is fixedly connected with the left headband, and the inner ring end of the coil spring corresponding to the right headband is installed It is installed on the inner side wall of the casing, the outer ring end is connected with the right headband, and the rotation directions of the two coil springs are opposite; the head-mounted display device includes a host and a headband adjustment mechanism. The part of the headband located on the outside of the slideway is fixedly connected with the corresponding side of the host. The parts of the left headband and the right headband located on the outside of the slideway are fixedly connected with the corresponding side of the host. When in use, the casing and the host Pull the coil spring connected to it to coil, and the right headband pulls the coil spring connected to it to coil. Under the elastic force of the two coil springs, the headset can be worn on the user's head, and it is no longer necessary to reconnect each time it is worn. The adjustment mechanism of the headband of the utility model solves the problem of inconvenient wearing and adjustment of the tightness.

Description of drawings

Fig. 1 is the exploded structure schematic diagram of the headband adjustment mechanism of the present invention;

Fig. 2 is the exploded structure schematic diagram of the rotating shaft of the headband adjustment mechanism of the present invention;

3 is a schematic three-dimensional structure diagram of the adjustment knob of the headband adjustment mechanism of the present invention;

Among them, 11, upper cover, 12, lower cover, 13a, left headband, 13b, right headband, 14a, coil spring, 14b, coil spring, 15a, rotating shaft, 15b, rotating shaft, 151, shaft body, 152, installation part, 1521, positioning post, 153, fixed cover, 1531, first fixed part, 1532, second fixed part, 154, transmission tooth, 16a, guide post, 16b, guide post, 17, shaft mounting cover, 171, installation Cover connecting column, 18, Gear mounting cover, 181, Gear shaft, 21, Adjusting knob, 211, Knob connecting column, 22, Limit tooth, 221, Ring body, 222, Gear body, 223, Connecting arm, 23, Inner Ring gear, 24, spring, 25, gear, 26, toothed belt.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

As can be seen from Figures 1, 2 and 3, the headband adjustment mechanism includes a casing enclosing a slideway, a left headband 13a and a right headband 13b respectively inserted from both ends of the slideway, corresponding to the left headband in the slideway. The belt 13a and the right headband 13b are respectively provided with a coil spring 14a and a coil spring 14b. The inner ring end of the coil spring 14a corresponding to the left headband 13a is installed on the inner side wall of the casing, and the outer ring end is fixed to the left headband 13a. For connection, the inner ring end of the coil spring 14b corresponding to the right headband 13b is mounted on the inner side wall of the housing, and the outer ring end is connected with the right headband 13b, and the rotation directions of the coil spring 14a and the coil spring 14b are opposite.

The parts of the left headband 13a and the right headband 13b located on the outer side of the slideway are fixedly connected to the corresponding sides of the main body of the head mounted device. When in use, the casing and the main body are pulled, and the left headband 13a and the right headband 13b are moved toward each other under the action of pulling force. The outer side of the slideway moves, and at the same time, the left headband 13a pulls the coil spring 14a connected to it to curl, and the right headband 13b pulls the coil spring 14b connected to it to curl, and then it is put on the user's head and then released. Under the elastic force of the spring 14b, the head-mounted device can be worn on the user's head, and there is no need to reconnect and adjust the tightness each time it is worn, which is very convenient to use. The headband adjustment mechanism of the present invention solves the problem of wearing and adjusting The problem of tightness is inconvenient.

In this embodiment, the corresponding coil springs 14a and 14b in the slideway are respectively provided with a rotating shaft 15a and a rotating shaft 15b that are rotatably connected to the housing, and the inner ring end of the coil spring is fixedly connected to the corresponding rotating shaft; the headband adjusts The mechanism also includes a tightness adjustment structure for adjusting the coil spring 14a and the coil spring 14b, and a transmission structure arranged between the rotating shaft 15a and the rotating shaft 15b.

Specifically, the tightness adjustment structure includes a ring gear 23 disposed in the slideway and coaxially with the rotating shaft 15b, an adjusting knob 21 disposed outside the slideway and fixedly connected with the rotating shaft 15b, and the adjusting knob 21 is connected with The limit teeth 22 meshed with the inner gear ring 23; also include an elastic member used to reset the adjustment knob 21 after being pressed. Of course, the ring gear 23 can also be disposed at the rotating shaft 15a, and at this time, the adjusting knob 21 is fixedly connected to the rotating shaft 15a.

Press the adjusting knob 21 to separate the limiting tooth 22 from the inner gear ring 23 and compress the elastic member. Since the inner ring end of the coil spring 14b is fixedly connected with the rotating shaft 15b, and the adjusting knob 21 is fixedly connected with the rotating shaft 15b, it can be adjusted by rotating The knob 21 adjusts the curling amount of the coil spring 14b; and a transmission structure is provided between the rotating shaft 15a and the rotating shaft 15b, when the curling amount of the coil spring 14b is adjusted, the other coil spring 14a can be synchronously adjusted The curling amount of the coil spring 14a and the coiling spring 14b can be adjusted to increase or decrease at the same time, so as to meet the needs of different users for different tightness. After adjusting the tightness, when the headset is used again It does not need to be adjusted again, and it is very convenient to use.

The rotating shaft 15a and the rotating shaft 15b are respectively provided with a plurality of transmission teeth 154 in the circumferential direction; the transmission structure includes a gear 25 that meshes with the transmission teeth 154 on the rotating shaft 15b on the side away from the adjustment knob 21, and the gear 25 is arranged on the rotating shaft 15b away from the adjustment knob 21. One side of the knob 21 ; it also includes the transmission teeth 154 and the toothed belt 26 on the gear 25 , which are annularly arranged on the rotating shaft 15 a . The rotation direction of the rotating shaft 15b on the side close to the adjusting knob 21 is consistent with the rotation direction of the gear 25, and the gear 25 meshes with the transmission teeth 154 on the rotating shaft 15a on the side away from the adjusting knob 21, so that the rotating directions of the rotating shaft 15a and the rotating shaft 15b are opposite, which can realize The curling amount of the coil spring 14a and the coil spring 14b is simultaneously increased or decreased. Of course, the transmission structure may also include even-numbered intermediate gears disposed between the rotating shaft 15a and the rotating shaft 15b, the even-numbered intermediate gears are meshed in sequence, the intermediate gears close to the rotating shaft 15a are meshed with their transmission teeth 154, and the intermediate gears close to the rotating shaft 15b are driven by the transmission teeth 154. The teeth 154 are engaged, so that the rotating shaft 15a and the rotating shaft 15b can rotate in opposite directions at the same time, so that the coil spring 14a and the coil spring 14b can be simultaneously increased or decreased.

In this embodiment, the rotating shaft 15a and the rotating shaft 15b respectively include a shaft body 151, a mounting portion 152 provided on the end of the shaft body 151, and a fixing cover 153 for matching with the mounting portion 152. The inner ring end of the coil spring is clamped It is held between the mounting portion 152 and the fixing cover 153 , and a connecting piece is also provided between the mounting portion 152 and the fixing cover 153 . Usually, the connecting piece is a screw, but may also be a pin or the like.

The mounting portion 152 is in the shape of a semi-cylindrical body; the fixing cover 153 includes a first fixing portion 1531 in the shape of a semi-cylindrical body, and a second fixing portion 1532 provided at the end of the first fixing portion 1531 to cover the end of the mounting portion 152 The above-mentioned connecting pieces are respectively provided between the second fixing portion 1532 and the end of the mounting portion 152 and between the end of the first fixing portion 1531 away from the second fixing portion 1532 and the shaft body 151 . Further, a positioning post 1521 is provided on one side of the mounting portion 152 close to the first fixing portion 1531, and a corresponding positioning hole is provided on the inner ring end of the coil spring, which can enhance the connection performance between the coil spring and the rotating shaft.

In this embodiment, the adjusting knob 21 is provided with a knob connecting column 211 that is inserted into the slideway and fixedly connected to the rotating shaft, and the limiting tooth 22 is arranged on the knob connecting column 211; the elastic member is a spring 24, which is arranged on the limiting tooth 22 The knob between the shaft is connected to the column part.

Specifically, the limiting tooth 22 includes a ring body 221 sleeved on the knob connecting column 211 , and a plurality of tooth bodies 222 arranged at intervals along the circumference of the ring body. There is a connecting arm 223; the teeth of the inner gear ring 23 are one-way teeth. It can be rotated in one direction. When it needs to be tightened, just turn the adjusting knob 21 directly; when it needs to be loosened, the adjusting knob 21 needs to be separated from the limit tooth 22 and the inner gear ring 23 to perform reverse rotation.

In this embodiment, when the adjusting knob 21 is fixedly connected with the rotating shaft 15b, a rotating shaft mounting cover 17 is provided at the outer side of the slideway corresponding to the rotating shaft 15a, and the rotating shaft mounting cover 17 is connected with a mounting cover which is inserted into the slideway and is fixedly connected with the rotating shaft 15a. The connecting column 171 realizes the rotational connection between the rotating shaft 15a and the housing through the connecting structure of the rotating shaft mounting cover 17, the connecting column 171 of the mounting cover and the rotating shaft 15a; the gear mounting cover 18 is provided at the corresponding gear 25 outside the slideway, and the gear mounting cover 18 is connected with a gear shaft 181 which is inserted into the slideway and is installed with the gear 25. The gear 25 and the housing are rotationally connected through the connection structure of the gear installation cover 18, the gear shaft 181 and the gear 25. Of course, the rotating shaft 15a can also be directly rotatably connected to the inner side wall of the casing, and a mounting post is provided on the inner side wall of the casing corresponding to the gear 25 for installation of the gear 25 and rotation relative to the casing.

In this embodiment, in order to facilitate the rotation of the adjusting knob 21 and prevent misoperation due to external force, a accommodating groove is provided on the outer side of the housing corresponding to the adjusting knob 21 . There is a card slot on it, and the adjusting knob 21 can be rotated by a tool matched with the card slot.

In this embodiment, the casing includes an upper cover 11 and a lower cover 12 that are fastened together. The upper cover 11 and the lower cover 12 are groove-shaped, and two ends of the upper cover 11 and the lower cover 12 are respectively provided with A through hole through which the left headband 13a and the right headband 13b pass. Specifically, the end groove walls of the upper cover 11 and the end groove walls of the lower cover 12 are correspondingly provided with notches, and the two notches on the end groove walls on the same side enclose the above-mentioned through holes.

In this embodiment, in order to facilitate the sliding of the left headband 13a and the right headband 13b in the slideway, guide structures are respectively provided on the inner side wall of the lower cover 12 or the upper cover 11 corresponding to the left headband 13a and the right headband 13b .

Specifically, the guide structure includes a plurality of pairs of guide columns 16a and 16b spaced along the extending direction of the slideway. Each pair of guide columns 16a and 16b respectively includes two guide columns spaced along the width direction. The belt 13a and the right head belt 13b pass through between the two guide pillars of the corresponding plurality of pairs of guide pillars 16a in sequence. Of course, a groove body extending in the direction of the slideway can also be provided on the inner side wall of the lower cover 12, which can also play a guiding role.

The present invention also relates to a head-mounted display device. The head-mounted display device includes a host and the above-mentioned headband adjustment mechanism. The left headband 13a and the right headband 13b of the headband adjustment mechanism are located on the outer side of the slideway. They are fixedly connected to the host respectively.

When wearing, pull the casing and the main unit, under the action of the pulling force, the left headband 13a and the right headband 13b move to the outside of the slideway, while the left headband 13a pulls the coil spring 14a connected to it to curl, and the right headband 13b pulls to connect to it. The coil spring 14b is curled, and it is released after being put on the user's head. Under the elastic force of the coil spring 14a and the coil spring 14b, the head mounted device can be worn on the user's head, and it is no longer necessary to reconnect each time it is worn. The adjustment mechanism of the headband of the utility model solves the problem of inconvenient wearing and adjustment of the tightness.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (12)

1. A headband adjustment mechanism, comprising a casing enclosing a slideway, a left headband and a right headband respectively inserted from both ends of the slideway, characterized in that the left headband is corresponding to the left headband in the slideway , The right headband is respectively provided with a coil spring, the inner ring end of the coil spring corresponding to the left headband is installed on the inner side wall of the housing, and the outer ring end is fixedly connected with the left headband , the inner ring end of the coil spring corresponding to the right headband is mounted on the inner side wall of the casing, the outer ring end is connected with the right headband, and the rotation directions of the two coil springs are opposite. 2 . The headband adjustment mechanism according to claim 1 , wherein, corresponding to the coil springs in the slideway, there are respectively provided rotating shafts that are rotatably connected to the housing, and the inner ring end of the coil springs It is fixedly connected with the corresponding rotating shaft; the headband adjusting mechanism further includes a tightness adjusting structure for adjusting the coiling amount of the coil spring and a transmission structure arranged between the two rotating shafts. 3 . The headband adjusting mechanism according to claim 2 , wherein the tightness adjusting structure comprises an inner gear arranged in the slideway and coaxially arranged with one of the rotating shafts, and is arranged outside the slideway and The adjustment knob fixedly connected with the rotating shaft is connected with a limit tooth meshed with the inner gear ring on the adjustment knob; and also includes an elastic member used to reset the adjustment knob after being pressed. 4 . The headband adjustment mechanism according to claim 3 , wherein a plurality of transmission teeth are respectively provided in the circumferential direction of the two rotating shafts; A gear that is meshed with the transmission teeth on the rotating shaft, the gear is arranged on the side of the rotating shaft away from the adjustment knob, and also includes a transmission tooth that is annularly arranged on the gear and on the rotating shaft that is fixedly connected with the adjustment knob between the toothed belts. 5 . The headband adjusting mechanism according to claim 3 , wherein the adjusting knob is provided with a knob connecting column that is inserted into the slideway and is fixedly connected to the corresponding rotating shaft, and the limiting teeth are provided with 5 . On the knob connecting column; the elastic member is a spring, which is arranged on the knob connecting column part between the limiting tooth and the rotating shaft. 6 . The headband adjusting mechanism according to claim 5 , wherein the limiting teeth comprise a ring body sleeved on the knob connecting column, and a plurality of teeth spaced along the circumference of the ring body. 7 . A connecting arm is respectively provided between each tooth body and the ring body; the teeth of the inner gear ring are unidirectional teeth. 7 . The headband adjusting mechanism according to claim 3 , wherein an accommodating groove is provided on the outer side of the housing corresponding to the adjusting knob, and the adjusting knob is arranged in the accommodating groove; There is a slot on the adjustment knob. 8. The headband adjustment mechanism according to any one of claims 2 to 7, wherein the rotating shaft comprises a shaft body, a mounting portion provided on an end of the shaft body, and a mounting portion for connecting with the mounting portion. The inner ring end of the coil spring is clamped between the mounting part and the fixing cover. 9 . The headband adjustment mechanism according to claim 8 , wherein the mounting portion is in the shape of a semi-cylindrical body; the fixing cover comprises a first fixing portion in the shape of a semi-cylindrical body, and the first fixing portion is provided with the first fixing portion. 10 . a second fixing part at the end of the mounting part for covering at the end of the mounting part, between the second fixing part and the end of the mounting part, the first fixing part is away from the second fixing part A connecting piece is respectively provided between the end of the fixed part and the shaft body; a positioning column is provided on the side of the mounting part close to the first fixed part, corresponding to the inner ring end of the coil spring is provided with positioning holes. 10 . The headband adjustment mechanism according to claim 1 , wherein a guide structure is respectively provided on the inner side wall of the housing corresponding to the left headband and the right headband. 11 . 11 . The headband adjustment mechanism according to claim 10 , wherein the guide structure comprises a plurality of pairs of guide posts spaced apart along the extending direction of the slideway, and each pair of the guide posts respectively comprises a widthwise direction. 12 . The two guide posts are arranged at intervals, and the left headband and the right headband pass through the corresponding pairs of the guide posts in sequence. 12. A head-mounted display device, comprising a host, further comprising the headband adjustment mechanism according to any one of claims 1 to 11, wherein the left headband, The part of the right headband located outside the slideway is fixedly connected with the corresponding side of the main body.