Motion capture head-mounted device

Abstract

The utility model discloses a motion capture head-mounted device, and relates to the technical field of motion capture. The helmet comprises a helmet body, and connecting blocks are symmetrically arranged on the two sides of the helmet body; the two ends of the U-shaped support are installed on the two connecting blocks respectively. The camera shooting assembly is mounted on the U-shaped bracket; and the two counterweight pieces are respectively arranged on the two connecting blocks and are far away from the U-shaped bracket. Compared with the prior art, by additionally arranging the counterweight part, the U-shaped support can be balanced with the camera shooting assembly at the end of the U-shaped support under the action of the counterweight part, so that when the device is used, the situation that local pressure is large is not prone to occurring, and long-time use is facilitated.

Description

Technical Field

[0001] This application relates to the field of motion capture technology, and particularly to a motion capture head-mounted device. Background Art

[0002] With the development of current science and technology, industries such as film and television, games, advertising, cultural tourism, etc. have an increasing demand for motion capture technology and equipment. Motion capture technology can accurately measure and record various motion trajectories and postures of moving objects in the actual three-dimensional space in real time, and reconstruct the motion state of the object in the virtual three-dimensional space. Facial expression capture, as a part of motion capture technology, is a process of using mechanical equipment, cameras and other devices to record human facial expressions and convert them into a series of parameter data.

[0003] The working principle of the motion capture head-mounted device is similar to that of a motion capture head-mounted device disclosed in the publicly patented CN220891803U. The camera component needs to be installed on the position of the helmet far from the face through a bracket to capture the facial information of the user. However, in actual use, due to the long bracket, the helmet is unevenly stressed, resulting in a large pressure on the side of the user's head facing the bracket, causing the user's head to easily tilt to one side, which is not conducive to long-term use. To reasonably improve this problem, this application proposes a motion capture head-mounted device. Summary of the Utility Model

[0004] The purpose of this application is to solve the technical problem that in actual use, due to the long bracket, the helmet is unevenly stressed, resulting in a large pressure on the side of the user's head facing the bracket, causing the user's head to easily tilt to one side, which is not conducive to long-term use. This application provides a motion capture head-mounted device.

[0005] This application specifically adopts the following technical solutions to achieve the above purpose:

[0006] A motion capture head-mounted device, comprising:

[0007] A helmet, symmetrically provided with connecting blocks on both sides;

[0008] A U-shaped bracket, the two ends of which are respectively installed on the two connecting blocks;

[0009] A camera component, installed on the U-shaped bracket;

[0010] Two counterweights, respectively arranged on the two connecting blocks and away from the U-shaped bracket.

[0011] Furthermore, the U-shaped bracket includes a mounting section, and the camera assembly is installed on the mounting section. Both ends of the mounting section are vertically connected with a connecting section. The connecting section and the counterweight are both slidably matched with the connecting block. One of the connecting blocks is provided with a fixing mechanism, and the connecting section and the counterweight can be fixed by the fixing mechanism.

[0012] Furthermore, columnar blocks are constructed on both sides of the helmet, and connecting blocks are rotatably installed on the columnar blocks. A ratchet gear is installed on one of the columnar blocks, and a receiving groove is constructed on the corresponding connecting block. A resist block is hinged in the receiving groove, and the two are connected by a torsion spring. The resist block is in contact with and overlaps the ratchet gear. A toggle plate is provided on the outside of the connecting block, and the toggle plate is connected to the hinge shaft of the resist block.

[0013] Furthermore, the connecting section includes two rod bodies connected to the mounting section, two through grooves are opened on the connecting block, and the two through grooves are arranged in parallel on both sides of the columnar block, and the two rod bodies slide through the two through grooves respectively. The counterweight member includes two counterweight rods connected to each other, and sliding grooves are opened on both sides of the connecting block, and are respectively located on the opposite sides of the two through grooves, and the two counterweight rods slide in cooperation with the two sliding grooves respectively.

[0014] Furthermore, the fixing mechanism includes an installation groove opened in the connecting block, the through groove and the sliding groove are connected through the installation groove, an insert block is slidably installed in the installation groove, and corresponding slots for accommodating the insert block are linearly distributed on the rod body and the counterweight rod. A driving part is provided on the connecting block, and the insert block can be driven to slide by the driving part.

[0015] Furthermore, the end of the insert block is in a frustum shape.

[0016] Furthermore, the driving part includes a movable groove opened on the outside of the connecting block, a push block is slidably installed on the groove of the movable groove, a connecting rod is hinged on the push block, the end of the plug block is connected to a column, the end of the column slides through the movable groove and is hinged to the end of the connecting rod.

[0017] Furthermore, a compression spring is connected in the installation groove, and a cylindrical groove for accommodating the compression spring is provided on the insert block.

[0018] The beneficial effects of the present application are as follows: Compared with the prior art, the present application adds an additional counterweight so that the U-shaped bracket can achieve balance with the camera assembly at its end under the action of the counterweight, so that when the device is in use, it is not easy to have a situation where local pressure is large, which is convenient for long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of this application;

[0020] Figure 2This is another three-dimensional structural diagram of the present application;

[0021] Figure 3 This application Figure 2 The local structural cross-sectional view in

[0022] Figure 4 This application Figure 2 Another partial structural cross-sectional view in FIG;

[0023] Figure 5 This application Figure 1 The local structural cross-sectional view in;

[0024] Figure 6 This application Figure 5 A side view of the structure;

[0025] Figure numerals: 1. Helmet; 2. Connecting block; 3. U-shaped bracket; 301. Mounting section; 302. Connecting section; 3021. Rod body; 4. Camera assembly; 5. Counterweight; 501. Counterweight rod; 6. Fixing mechanism; 601. Mounting slot; 602. Insert block; 603. Card slot; 604. Driving unit; 6041. Movable slot; 6042. Push block; 6043. Connecting rod; 6044. Insert column; 7. Column block; 8. Ratchet gear; 9. Accommodating slot; 10. Abutment block; 11. Torsion spring; 12. Toggle plate; 13. Through slot; 14. Sliding slot; 15. Compression spring; 16. Column slot. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0027] like Figures 1-6 As shown, an embodiment of the present application provides a motion capture head-mounted device, comprising:

[0028] The helmet 1 is symmetrically provided with connecting blocks 2 on both sides, and the two connecting blocks 2 are respectively located on both sides of the face opening of the helmet 1;

[0029] A U-shaped bracket 3, with its two ends respectively mounted on the two connecting blocks 2, and the face opening of the helmet 1 facing the inner side of the U-shaped bracket 3;

[0030] The camera assembly 4 is a camera mounted on the U-shaped bracket 3, located on the end of the U-shaped bracket 3 away from the helmet 1, and can capture the user's facial information through the camera assembly 4;

[0031] Two counterweights 5 are respectively provided on the two connecting blocks 2 and are away from the U-shaped bracket 3;

[0032] In summary, combined with Figure 2The connecting block 2 and the U-shaped bracket 3 can be regarded as a lever, and the helmet 1 serves as the support point of the lever, which can apply pressure on the user's head. Compared with the prior art, the present application adds an additional counterweight 5, so that the lever can reach a balance with the camera assembly 4 at its end under the action of the counterweight 5, so that when the device is in use, it is not easy to have a situation where local pressure is large, which is convenient for long-term use.

[0033] like Figures 1-6 As shown, in some embodiments, the U-shaped bracket 3 includes a mounting section 301, and the camera assembly 4 is mounted on the mounting section 301. The camera assembly 4 is located on the side of the mounting section 301 facing the face opening of the helmet 1. Both ends of the mounting section 301 are vertically connected to a connecting section 302. The connecting section 302 and the counterweight 5 are slidably matched with the connecting block 2. Figure 1 and Figure 2 It can be seen that the sliding directions of the two are parallel to each other. The U-shaped bracket 3 can be controlled to extend and drive the counterweight 5 to slide in the opposite direction. In this way, the counterweight 5 can be moved to the corresponding position while adjusting the distance between the camera assembly 4 and the facial opening of the helmet 1. This design can improve the applicability of the device and facilitate users to adjust it according to their own needs. A fixing mechanism 6 is provided on one of the connecting blocks 2. After the adjustment is completed, the connecting section 302 and the counterweight 5 can be fixed by the fixing mechanism 6.

[0034] like Figures 1-3 As shown, in some embodiments, a columnar block 7 is constructed on both sides of the helmet 1, and the connecting block 2 is rotatably mounted on the columnar block 7. The columnar block 7 rotates through the connecting block 2. This design allows the connecting block 2 to drive the U-shaped bracket 3 to rotate. A ratchet gear 8 is installed on one of the columnar blocks 7. The ratchet gear 8 is installed on the side of the columnar block 7. A receiving groove 9 is constructed on the corresponding connecting block 2. A stop block 10 is hinged in the receiving groove 9, and the two are connected by a torsion spring 11. The fixed end of the torsion spring 11 is connected to the receiving groove 9, and the movable end is connected to the stop block 10. The stop block 10 can be driven to extend out of the accommodating groove 9, and the stop block 10 contacts and overlaps with the ratchet gear 8. The stop block 10 and the ratchet gear 8 cooperate with each other to realize one-way rotation, that is, when the U-shaped bracket 3 rotates downward, the stop block 10 can contact the ratchet gear 8, and the connecting block 2 cannot rotate. A toggle plate 12 is provided on the outside of the connecting block 2, and the toggle plate 12 is connected to the hinge axis of the stop block 10. By toggling the toggle plate 12, the stop block 10 can be driven to rotate and retracted into the accommodating groove 9, thereby releasing the restriction on the connecting block 2, thereby driving the U-shaped bracket 3 to rotate downward.

[0035] like Figure 2 and Figure 3As shown, in some embodiments, the connecting section 302 includes two rod bodies 3021 connected to the mounting section 301. Two through slots 13 are formed in the connecting block 2, and the two through slots 13 are arranged in parallel on both sides of the cylindrical block 7. The two rod bodies 3021 respectively slide through the two through slots 13. This design can improve the connection stability between the connecting block 2 and the U-shaped bracket 3. The counterweight 5 includes two interconnected counterweight rods 501. The counterweight rods 501 can be iron rods. The U-shaped bracket 3 can be made of carbon fiber material. There is a weight difference between the two. Slide grooves 14 are formed on both sides of the connecting block 2 and are respectively located on the opposite sides of the two through slots 13. The two counterweight rods 501 are respectively slidably engaged with the two slide grooves 14. With the design of two counterweight rods 501, when the U-shaped bracket 3 extends, the backward sliding stroke of the counterweight 5 can be reduced.

[0036] As Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the fixing mechanism 6 includes a mounting groove 601 formed in the connecting block 2. The through slot 13 and the slide groove 14 are connected through the mounting groove 601. The extending direction of the mounting groove 601 is perpendicular to the axes of the through slot 13 and the slide groove 14. An insertion block 602 is slidably mounted in the mounting groove 601. Corresponding to the rod body 3021 and the counterweight rod 501, card slots 603 for accommodating the insertion block 602 are linearly distributed. The card slots 603 are formed on the sides of the rod body 3021 and the counterweight rod 501 facing the mounting groove 601. A driving portion 604 is provided on the connecting block 2. The insertion block 602 can be driven to slide through the driving portion 604. When the adjustment of the rod body 3021 and the counterweight rod 501 is completed, when the driving portion 604 drives the insertion block 602 to slide in the mounting groove 601 towards the through slot 13 and the slide groove 14, the insertion block 602 can enter the through slot 13 and the slide groove 14 and be inserted into the card slots 603 of the rod body 3021 and the counterweight rod 501, thereby fixing the rod body 3021 and the counterweight rod 501. When the driving portion 604 drives the insertion block 602 away from the through slot 13 and the slide groove 14, the insertion block 602 can disengage from the card slot 603 and retract into the mounting groove 601, thereby releasing the fixation on the rod body 3021 and the counterweight rod 501.

[0037] As Figure 5 and Figure 6 As shown, in some embodiments, the end of the insertion block 602 is frustum-shaped. When the insertion block 602 slides towards the through slot 13 and the slide groove 14, this design facilitates the alignment of the insertion block 602 with the card slot 603.

[0038] As Figure 5As shown, in some embodiments, the driving part 604 includes a movable slot 6041 formed on the outer side of the connecting block 2. The movable slot 6041 is located on the side of the through slot 13 and the sliding slot 14 away from the mounting slot 601. A push block 6042 is slidably mounted at the opening of the movable slot 6041. The push block 6042 can cover the opening of the movable slot 6041. A connecting rod 6043 is hinged on the push block 6042. An insertion post 6044 is connected to the end of the insertion block 602. There is a spacing between the through slot 13 and the sliding slot 14. The insertion post 6044 slidably penetrates through this spacing. The end of the insertion post 6044 slidably penetrates through the movable slot 6041 and is hinged to the end of the connecting rod 6043. When the push block 6042 slides to one end of the movable slot 6041, the connecting rod 6043 is arranged obliquely in the movable slot 6041. At this time, under the action of the insertion post 6044, the insertion block 602 can slide towards the direction of the through slot 13 and the sliding slot 14, and fix the rod body 3021 and the counterweight rod 501. When the push block 6042 slides to the other end of the movable slot 6041, the connecting rod 6043 is parallel to the insertion post 6044, and thereby pushes the insertion block 602 to slide in the reverse direction.

[0039] As Figure 4 and Figure 6 As shown, in some embodiments, a compression spring 15 is connected in the mounting slot 601. A cylindrical slot 16 for accommodating the compression spring 15 is formed on the insertion block 602. The compression spring 15 is used to provide a thrust force that forces the insertion block 602 to slide towards the direction of the through slot 13 and the sliding slot 14, so that during the use of the device, it is not easy for the insertion block 602 to disengage from the rod body 3021 and the counterweight rod 501. And when the insertion block 602 slides in the reverse direction, the compression spring 15 is compressed, and the cylindrical slot 16 can accommodate the compression spring 15.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An action capture head-mounted device, characterized in that, include: A helmet (1) is symmetrically provided with connecting blocks (2) on both sides; A U-shaped bracket (3), with both ends respectively mounted on the two connecting blocks (2); A camera assembly (4) is mounted on the U-shaped bracket (3); The two counterweights (5) are respectively arranged on the two connecting blocks (2) and are separated from the U-shaped bracket (3).

2. The motion capture head-mounted device according to claim 1, characterized in that, The U-shaped bracket (3) comprises a mounting section (301), the camera assembly (4) is mounted on the mounting section (301), both ends of the mounting section (301) are vertically connected to connecting sections (302), the connecting section (302) and the counterweight (5) are both slidably matched with the connecting block (2), and a fixing mechanism (6) is provided on one of the connecting blocks (2), and the connecting section (302) and the counterweight (5) can be fixed by the fixing mechanism (6).

3. The motion capture head-mounted device according to claim 2, wherein, Both sides of the helmet (1) are constructed with column blocks (7), and the connecting block (2) is rotatably mounted on the column blocks (7). A ratchet gear (8) is mounted on one of the column blocks (7), and a corresponding receiving groove (9) is constructed on the connecting block (2). A stop block (10) is hinged in the receiving groove (9), and the two are connected by a torsion spring (11). The stop block (10) and the ratchet gear (8) are in contact and overlapped. A toggle plate (12) is provided on the outside of the connecting block (2), and the toggle plate (12) is connected to the hinge shaft of the stop block (10).

4. The motion capture head-mounted device according to claim 3, wherein, The connecting section (302) includes two rod bodies (3021) connected to the mounting section (301); the connecting block (2) is provided with two through-grooves (13), and the two through-grooves (13) are arranged in parallel on both sides of the columnar block (7); the two rod bodies (3021) slide through the two through-grooves (13) respectively; the counterweight (5) includes two mutually connected counterweight rods (501); sliding grooves (14) are provided on both sides of the connecting block (2), and are respectively located on opposite sides of the two through-grooves (13); the two counterweight rods (501) are respectively slidably matched with the two sliding grooves (14).

5. The motion capture head-mounted device according to claim 4, wherein, The fixing mechanism (6) includes a mounting groove (601) provided in the connecting block (2), the through groove (13) and the sliding groove (14) are connected through the mounting groove (601), an insert block (602) is slidably installed in the mounting groove (601), and slots (603) for accommodating the insert block (602) are linearly distributed corresponding to the rod body (3021) and the counterweight rod (501), and a driving part (604) is provided on the connecting block (2), and the insert block (602) can be driven to slide by the driving part (604).

6. The motion capture head-mounted device according to claim 5, wherein The end of the insert (602) is in a frustum shape.

7. The motion capture head-mounted device according to claim 6, wherein, The driving part (604) includes a movable groove (6041) opened on the outside of the connecting block (2), a push block (6042) is slidably installed in the groove of the movable groove (6041), a connecting rod (6043) is hinged on the push block (6042), and an insertion column (6044) is connected to the end of the insertion block (602), and the end of the insertion column (6044) slides through the movable groove (6041) and is hinged to the end of the connecting rod (6043).

8. The motion capture head-mounted device according to claim 7, wherein, A compression spring (15) is connected inside the installation groove (601), and a cylindrical groove (16) for accommodating the compression spring (15) is formed on the insertion block (602).

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