CN206863342U - One kind wears display device - Google Patents

Abstract

The utility model provides one kind and wears display device, including left picture frame, right picture frame and interpupillary distance adjusting means, and interpupillary distance adjusting means includes adjusting knob, power transmission shaft, left socle, right support, the axis of guide.Adjusting knob is formed on power transmission shaft, for driving drive axis, power transmission shaft is threaded with left socle, right support, for driving left socle, the movement of right support synchronous backward, left socle, right support are respectively used for driving left picture frame, the movement of right picture frame, and axis of guide slip cap is set with the power transmission shaft of parallel laying, the axis of guide equipped with left picture frame, right picture frame or left socle, right support, bearing sliding, and pre-pressing structure is provided between power transmission shaft, and lockable mechanism is provided between adjusting knob.The utility model wears display device, by improving the structure of interpupillary distance adjusting means, simplifies interpupillary distance adjusting transmission mechanism, the reliability of interpupillary distance regulation is improved while reducing assembly difficulty, has ensured Consumer's Experience effect.

Description

A head-mounted display device

technical field

The utility model relates to the technical field of head-mounted devices, in particular to an improvement of an interpupillary distance adjustment device in a head-mounted display device.

Background technique

Head-mounted display devices can realize different effects such as virtual reality, augmented reality, and mixed reality. Because of their strong visual experience, they are gradually recognized by the public.

At present, most head-mounted display devices are designed with an adjustable interpupillary distance structure in order to improve the experience effect. However, the current interpupillary distance adjustment structure is limited to relatively complicated transmission mechanisms such as gear transmission and belt transmission, which increases the difficulty of assembly and the cost of the product. Moreover, the existing interpupillary distance adjustment structure does not have a limit or locking mechanism. When subjected to a large vibration, the interpupillary distance will lose control and shift, which seriously reduces the experience effect.

Contents of the invention

The purpose of this utility model is to provide a head-mounted display device. By improving the structure of the interpupillary distance adjustment device and simplifying the interpupillary distance adjustment transmission mechanism, the difficulty of assembly is effectively reduced, and the reliability of the interpupillary distance adjustment is also improved, ensuring that users Experience the effect.

In order to achieve the above object, the utility model adopts the following technical solutions to achieve:

A head-mounted display device includes a left mirror frame, a right mirror frame, and an interpupillary distance adjustment device, and the interpupillary distance adjustment device includes an adjustment knob, a transmission shaft, a left bracket, a right bracket, and a guide shaft. The adjustment knob is formed on the transmission shaft for driving the transmission shaft to rotate, the transmission shaft is threadedly connected with the left bracket and the right bracket, and is used for driving the left bracket and the right bracket to move in reverse synchronously , the left bracket and the right bracket are respectively used to drive the left mirror frame and the right mirror frame to move, the guide shaft sliding sleeve is provided with the left mirror frame, the right mirror frame or the left bracket and the right bracket, and the sliding sleeve of the support The transmission shaft and the guide shaft are arranged in parallel, and a pre-tightening structure is provided between the transmission shaft and a locking mechanism between the adjustment knob.

There are a plurality of grooves in a circular array on the adjusting knob, and the locking mechanism includes a first elastic member, a limiting member, and a guide seat. The guide seat is provided with a guide groove for accommodating the first elastic member and the limiting member, and is fixedly connected to the support. The limiting member abuts between the groove and the first elastic member.

Further, the groove is in the shape of a hemisphere, and the limiting member is in the shape of a sphere.

Further, the edge of the groove is rounded.

Further, the pre-tightening structure includes a second elastic member, the pre-tightening structure abuts between the support and the transmission shaft, and the transmission shaft abuts on the pre-tightening structure and the support between seats.

Further, the pre-tensioning structure further includes a sleeve, the sleeve and the second elastic member are sleeved on the transmission shaft, and the sleeve and the second elastic member abut against each other.

Further, the first elastic member and the second elastic member are both spring structures.

Further, the adjusting knob is located between the left bracket and the right bracket.

Further, the two ends of the transmission shaft are provided with stoppers to prevent the left bracket and the right bracket from falling off.

Compared with the prior art, the utility model has advantages and beneficial effects as follows:

Since the left bracket and the right bracket are respectively used to drive the left frame and the right frame to move, the utility model drives the left frame and the right frame to move synchronously and reversely (in opposite directions or opposite directions) through the transmission shaft, which realizes synchronous driving of the left frame and the right frame. The reverse movement realizes the adjustment of the interpupillary distance. The structure is simple and easy to implement, which is beneficial to the reduction of the product cost of the head-mounted display device. What is special is the setting of the pre-tightening structure, which can effectively prevent the transmission shaft from moving along its axial direction, thereby avoiding the problem that the left mirror frame and the right mirror frame are shifted to one side as a whole and affect the user experience. When subjected to a large vibration, the locking mechanism can still better avoid the rotation of the adjustment knob, thereby ensuring the accuracy of the interpupillary distance and ensuring the user's experience effect.

After reading the detailed description of the embodiments of the utility model in conjunction with the accompanying drawings, other features and advantages of the utility model will become clearer.

Description of drawings

Fig. 1 is an exploded schematic diagram of a head-mounted display device according to a specific embodiment of the present invention;

Fig. 2 is a schematic diagram of assembly of a head-mounted display device according to a specific embodiment of the present invention;

Fig. 3 is a schematic structural view of a locking mechanism of a specific embodiment of the utility model;

Fig. 4 is a schematic cross-sectional view of the left bracket of a specific embodiment of the present invention;

Fig. 5 is a schematic structural view of a support of a specific embodiment of the utility model;

Fig. 6 is a schematic structural view of a guide cylinder of a specific embodiment of the present invention;

Fig. 7 is a schematic structural view of a guide base of a specific embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model.

As shown in Fig. 1 and Fig. 2, this embodiment proposes a head-mounted display device, including a left mirror frame, a right mirror frame and an interpupillary distance adjustment device. The interpupillary distance adjustment device includes an adjustment knob 10, a transmission shaft 20, a left Support 30, right support 40, guide shaft 50, bearing 60.

In this embodiment, the adjusting knob 10 is formed on the transmission shaft 20 , and can be inserted into the transmission shaft 20 or integrally formed with the transmission shaft 20 to drive the transmission shaft 20 to rotate. The transmission shaft 20 is threadedly connected with a left support 30 and a right support 40, which are used to drive the left support 30 and the right support 40 to move synchronously and reversely. Specifically, two external threads with opposite directions of rotation are formed on the transmission shaft 20 to realize driving the left support. The support 30 and the right support 40 move synchronously in opposite directions (towards or backwards). When transmission shaft 20 rotates, left support 30, right support 40 are used to drive left picture frame, right picture frame to move respectively, for example, are connected by means of screw, clamping etc., obviously, left picture frame, right picture frame also follow left support 30 respectively 1. The right bracket 40 moves in reverse synchronously, thereby realizing the adjustment of the interpupillary distance. In order to prevent the left mirror frame and the right mirror frame from rotating during the synchronous reverse movement, in this embodiment, the left bracket 30 and the right bracket 40 are slidably fitted on the guide shaft 50, as shown in FIG. 4 , and slide through the support 60 The transmission shaft 20 and the guide shaft 50 arranged in parallel are set in the suit, which is beneficial to the guide shaft 50 to play a better guiding role, effectively avoiding the swinging phenomenon of the left mirror frame and the right mirror frame during the moving process. In other embodiments of the utility model Also can have left picture frame, right picture frame on guide shaft 50 sliding suit according to actual needs, also can obtain same effect.

In order to prevent the adjustment knob 10 from being rotated by external force in the non-working state and affect the accuracy of the interpupillary distance, this embodiment provides a locking mechanism 70 between the support 60 and the adjustment knob 10, as shown in Figure 3, to prevent the user from When the interpupillary distance is not adjusted, the interpupillary distance adjustment device is out of control due to other external forces. Specifically, in this embodiment, there are a plurality of grooves 11 in a circular array on the adjustment knob 10, and the locking mechanism 70 is designed to include a first elastic member 71 , Limiting member 72, guide seat 73.

The guide seat 73 is provided with a guide groove for accommodating the first elastic member 71 and the stopper 72. In other embodiments of the present invention, the guide seat 73 can be connected to the shell of the head-mounted display device, and the guide seat 73 can also be designed It is integrally formed with the support 60. While ensuring the compactness and reliability of the structure, in order to facilitate the disassembly and assembly of the interpupillary distance adjustment device, the preferred guide seat 73 in this embodiment is fixedly connected to the support 60. Of course, in order to facilitate disassembly in the guide groove The first elastic member 71 , the limiting member 72 , and the guide seat 73 in this embodiment further include a screw-connected guide cylinder 731 and a guide base 732 , as shown in FIGS. 1 , 3 and 6 and 7 . And the limiting member 72 is designed to abut between the groove 11 and the first elastic member 71 . When the adjustment knob 10 is turned, the adjustment knob 10 presses the limiter 72 and the first elastic member 71 so that the limiter 72 breaks away from the groove 11. When the adjustment knob 10 is stopped, the restoring force of the first elastic member 71 lifts the limit The positioning member 72 makes the limiting member 72 move to the closest groove 11 again, thereby achieving the effect of effectively locking the adjusting knob 10 .

In order to reduce the resistance of rotating the adjusting knob 10, the groove 11 is further designed to be hemispherical in this embodiment, and the stopper 72 is spherical. In order to reduce the wear on the edge of the groove 11 and improve the smoothness of rotating the adjusting knob 10, In particular, rounded corners are formed at the edges of the recess 11 .

As can be seen from the above, when the user rotates the adjusting knob 10 so that the limiting member 72 is located between two adjacent grooves 11, the lifting of the limiting member 72 by the first elastic member 71 will cause the adjusting knob 10 to rotate slightly, so that the limiting member 72 will rotate slightly. The position piece 72 is automatically turned into the nearest groove 11, so that when the user adjusts the volume, he can experience a sense of smoothness and inhalation, which is beneficial to the improvement of the experience effect.

In this embodiment, the adjusting knob 10 is further arranged between the left bracket 30 and the right bracket 40. Due to the locking mechanism 70 between the adjusting knob 10 and the support 60, obviously, the support 60 is also provided with the left bracket 30 and the right bracket. 40, so the transmission shaft 20, the guide shaft 50, the left bracket 30 and the right bracket 40 located on the transmission shaft 20 can be better supported.

In order to prevent the user from excessively rotating the knob and causing the left bracket 30 and the right bracket 40 to fall off when adjusting the interpupillary distance, other embodiments of the present utility model can also be provided with anti-left bracket 30 and right bracket 40 at both ends of the transmission shaft 20. For the stopper that falls off, the installation of the stopper can refer to the existing bolt connection, welding and other methods.

In order to avoid slight movement of the transmission shaft 20 along its axial direction during the rotation process, a pre-tightening structure 80 is especially provided between the transmission shaft 20 and the support 60 to ensure the accuracy of the interpupillary distance adjustment, specifically, the pre-tightening The structure 80 may only include the second elastic member 81. In order to reduce the size of the second elastic member 81, it may also include a sleeve 82 and the second elastic member 81 that abut against each other. Specifically, the pretensioning structure 80 of this embodiment includes The sleeve 82 and the second elastic member 81, in actual assembly, the pretensioning structure 80 can be abutted between the support 60 and the transmission shaft 20 by being sleeved on the transmission shaft 20, and by forming a shaft on the transmission shaft 20 The shoulder is further abutted between the pretensioning structure 80 and the support 60 . The ends of the sleeve 82 and the second elastic member 81 away from each other can abut against the transmission shaft 20 and the support 60 respectively, or respectively abut against the support 60 and the transmission shaft 20 .

Considering the excellent characteristics of the spring and its high cost performance, the first elastic member 71 and the second elastic member 81 in this embodiment are both made of springs, and the specific parameters can be set according to actual needs.

In addition, it should be noted that the structure for realizing the synchronous reverse movement of the left bracket and the right bracket in this embodiment can also be used for the focus adjustment device in the existing head-mounted display device because the length of the distance can be adjusted conveniently. It only needs to arrange the left bracket and the right bracket forward and backward and connect the corresponding components, which will not be described in detail here.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model in other forms. Any skilled person who is familiar with this profession may use the technical content disclosed above to change or remodel it into an equivalent change. Equivalent embodiment. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the utility model still belong to the protection scope of the technical solution of the utility model.

Claims (9)

1. A head-mounted display device, comprising a left frame, a right frame and an interpupillary distance adjustment device, characterized in that the interpupillary distance adjustment device includes an adjustment knob, a drive shaft, a left support, a right support, a guide shaft, and a support: The adjusting knob is formed on the transmission shaft and is used to drive the transmission shaft to rotate, The transmission shaft is threadedly connected with the left bracket and the right bracket, and is used to drive the left bracket and the right bracket to move in reverse synchronously, The left bracket and the right bracket are respectively used to drive the left mirror frame and the right mirror frame to move, The guide shaft sliding sleeve is provided with the left mirror frame, the right mirror frame or the left bracket and the right bracket, The sliding sleeve of the support has the transmission shaft and the guide shaft arranged in parallel, and a pre-tightening structure is provided between the transmission shaft and a locking mechanism between the adjustment knob. 2. The head-mounted display device according to claim 1, wherein the adjustment knob has a plurality of grooves in a circular array, and the locking mechanism includes a first elastic member, a limiting member, and a guide seat: The guide seat is provided with a guide groove for accommodating the first elastic member and the limiter, and is fixedly connected to the support, The limiting member abuts between the groove and the first elastic member. 3. The head-mounted display device according to claim 2, wherein the groove is in the shape of a hemisphere, and the limiting member is in the shape of a sphere. 4. The head-mounted display device according to claim 3, wherein the edge of the groove is rounded. 5. The head-mounted display device according to any one of claims 1 to 4, wherein the pre-tightening structure includes a second elastic member, and the pre-tightening structure abuts against the support and the between the transmission shafts, and the transmission shaft abuts between the pre-tightening structure and the support. 6. The head-mounted display device according to claim 5, wherein the pre-tightening structure further comprises a sleeve, the sleeve and the second elastic member are sleeved on the transmission shaft, the sleeve, the first The two elastic parts abut against each other. 7. The head-mounted display device according to claim 5, wherein the second elastic member is a spring structure. 8. The head-mounted display device according to claim 5, wherein the adjustment knob is located between the left bracket and the right bracket. 9 . The head-mounted display device according to claim 8 , wherein stoppers are provided at both ends of the transmission shaft to prevent the left bracket and the right bracket from falling off.