CN213718115U

CN213718115U - Projection device

Info

Publication number: CN213718115U
Application number: CN202023227537.1U
Authority: CN
Inventors: 逄相来; 张健
Original assignee: Qingdao Hisense Laser Display Co Ltd
Current assignee: Qingdao Hisense Laser Display Co Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-07-16
Anticipated expiration: 2030-12-28

Abstract

The embodiment of the application discloses projection equipment, and belongs to the technical field of projection. The projection device includes: the device comprises a projection host, a projection screen, a camera assembly, a pickup assembly and a voice module; the camera assembly and the pickup assembly are fixed on the projection screen, the camera assembly and the pickup assembly are respectively and electrically connected with the voice module, and the voice module is in communication connection with the projection host; the voice module is used for processing the video data collected by the camera assembly and the voice data collected by the pickup assembly and transmitting the video data and the voice data to the projection host, and the projection host has a communication function. In the embodiment of the application, when projection host computer and projection screen cooperation projection display screen, can handle and transmit to the projection host computer through the voice data of the video data of camera subassembly collection and the voice data of pickup subassembly collection through the pronunciation module, the interaction of data between this moment projection host computer can realize and other projection equipment, cell-phone etc. based on communication function, has realized projection equipment's social function, has improved user's viscosity.

Description

Projection device

Technical Field

The embodiment of the application relates to the technical field of projection, in particular to projection equipment.

Background

With the continuous development of science and technology, projection equipment is more and more applied to the work and the life of people. At present, a projection device mainly comprises a projection host and a projection screen. The projection screen is a frame screen, the projection screen is hung on a wall, a light outlet of the projection host faces the projection screen, the projection host is used for emitting light beams to the projection screen, and the projection screen is used for receiving the light beams to display pictures.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a projection device, which can realize the social function of the projection device and improve the user viscosity of the projection device. The technical scheme is as follows:

a projection device, the projection device comprising: the device comprises a projection host, a projection screen, a camera assembly, a pickup assembly and a voice module;

the camera assembly and the pickup assembly are fixed on the projection screen, the camera assembly and the pickup assembly are respectively and electrically connected with the voice module, and the voice module is in communication connection with the projection host;

the voice module is used for processing the video data collected by the camera assembly and the voice data collected by the pickup assembly and transmitting the video data to the projection host, and the projection host has a communication function.

Optionally, the camera assembly and the pickup assembly are fixed to the top of the projection screen.

Optionally, the projection device further comprises a connector;

the pickup assembly is fixed the top of projection screen, the connecting piece with pickup assembly fixed connection, the camera subassembly with the connecting piece is connected, and is located the top of pickup assembly.

Optionally, the connecting piece has a rotation axis, the camera assembly is connected with the rotation axis, the camera assembly can rotate relative to the pickup assembly, and can be limited at the current position.

Optionally, the connecting piece has universal ball, camera subassembly with universal ball is connected, camera subassembly can be relative pickup assembly rotates, and can be spacing at the current position.

Optionally, the cross section of connecting piece is L shape, the first curb plate of connecting piece with pickup assembly buckle is connected, the second curb plate of connecting piece with pickup assembly passes through screw fixed connection.

Optionally, projection screen's top has first locating hole, the pickup subassembly has first locating post, first locating post is spacing in the first locating hole, the pickup subassembly still through the screw with projection screen fixed connection.

Optionally, a vertical beam is arranged on the back of the projection screen, and the voice module is fixed on the vertical beam.

Optionally, the vertical beam is provided with a second positioning hole, the voice module is provided with a second positioning column, the second positioning column is limited in the second positioning hole, and the voice module is further fixedly connected with the vertical beam through a screw.

Optionally, the projection device further comprises a host connection line and an anti-dropping buckle;

the first end of host computer connecting wire has the shaft shoulder, the anticreep buckle cover is established on the host computer connecting wire, the first end of host computer connecting wire with the pronunciation module electricity is connected, the anticreep buckle is fixed on the pronunciation module, just the anticreep buckle is used for right the shaft shoulder carries on spacingly.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

in the embodiment of the application, when projection host and projection screen cooperate with projection display screen, can gather the video data and the audio data of current scene respectively through camera subassembly and pickup assembly, later handle the video data and the voice data of gathering and transmit to the projection host through voice module, the interaction of data between projection host can be realized and other projection equipment, cell-phone etc. based on communication function this moment, projection equipment's social function has been realized, user's viscosity has been improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic rear view of a projection apparatus provided in an embodiment of the present application;

fig. 2 is an exploded view of a pickup assembly according to an embodiment of the present disclosure;

fig. 3 is an exploded view of another pickup assembly in fixed connection according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an exploded structure of a pickup assembly and a camera assembly fixedly connected according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram illustrating a rear view of a rotational connection of a camera assembly according to an embodiment of the present disclosure;

FIG. 6 is a schematic side view of a rotational connection of a camera assembly according to an embodiment of the present disclosure;

fig. 7 is an exploded view of a fixed connection of a voice module according to an embodiment of the present application;

fig. 8 is an exploded view of a fixed connection of a voice module according to an embodiment of the present application;

fig. 9 is an exploded view of a host connection cable connection according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a host connection line connection according to an embodiment of the present disclosure.

Reference numerals:

1: a projection host; 2: a projection screen; 3: a camera assembly; 4: a pickup assembly; 5: a voice module; 6: a connecting member; 7: a host connecting line; 8: an anti-falling buckle;

21: a first positioning hole; 22: a first threaded hole; 23: erecting a beam;

231: a second positioning hole; 232: a second threaded hole;

41: a first positioning post; 42: a first through hole; 43: a female buckle; 44: a third threaded hole;

51: a second positioning column; 52: a second through hole;

61: a rotating shaft; 62: a first side plate; 63: a second side plate; 64: a male buckle; 65: a third via.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be further described in detail with reference to the accompanying drawings.

Fig. 1 illustrates a schematic structural diagram of a projection apparatus according to an embodiment of the present application. As shown in fig. 1, the projection apparatus includes: the device comprises a projection host 1, a projection screen 2, a camera assembly 3, a pickup assembly 4 and a voice module 5; the camera assembly 3 and the pickup assembly 4 are fixed on the projection screen 2, the camera assembly 3 and the pickup assembly 4 are respectively and electrically connected with the voice module 5, and the voice module 5 is in communication connection with the projection host 1; the voice module 5 is used for processing the video data collected by the camera assembly 3 and the voice data collected by the pickup assembly 4 and transmitting the video data and the voice data to the projection host 1, and the projection host 1 has a communication function.

In the embodiment of the application, when projection host computer 1 and projection screen 2 cooperate the projection display screen, can gather the video data and the audio data of current scene respectively through camera subassembly 3 and pickup subassembly 4, later handle the video data and the voice data of gathering and transmit to projection host computer 1 through pronunciation module 5, projection host computer 1 can realize with other projection equipment based on communication function this moment, the interaction of data between cell-phone etc, projection equipment's social function has been realized, user's viscosity has been improved.

The projection host 1 decodes the received audio and video data to obtain video data and audio data, and then emits a light beam to realize picture display of the video data on the projection screen 2, and meanwhile, the projection host 1 realizes playing of the audio data based on the included sound component. The audio and video data may be data sent by other projection devices or mobile phones and the like received when the projection device is used for social contact.

Optionally, the camera assembly 3 includes at least one camera, the pickup assembly 4 is a microphone, and the voice module 5 is an audio/video encoder. The video data refers to a scene image of a current scene, the audio data refers to voice information of the current scene, and the voice module 5 can encode the video data and the audio data to obtain audio and video data.

In the embodiment of the application, the projection host 1 includes a functional component and an optical engine, the functional component is electrically connected with the optical engine, the functional component is used for being electrically connected with an external power supply, and the functional component has a communication function to receive audio and video data transmitted by other projection devices or mobile phones and the like, and displays and plays the received audio and video data through the optical engine and the projection screen 2 under the cooperation of the functional component.

By combining with the introduction of the projection host 1, the voice module 5 is in communication connection with the functional component, so that the voice module 5 transmits the processed audio/video data to the functional component, and then the audio/video data transmitted by the voice module 5 is transmitted to other projection equipment or mobile phones and the like by the functional component based on the communication function, thereby realizing the interaction between the projection equipment and other projection equipment or mobile phones and the like.

Optionally, the projection host 1 is an ultra-short-focus projection host 1, and the optical engine included in the projection host 1 is an ultra-short-focus optical engine. In this way, the optical engine and the projection screen 2 can be arranged at a short distance, that is, the projection host 1 and the projection screen 2 are arranged at a short distance, so that the miniaturization design of the projection device is realized. Illustratively, the ultra-short focus optical engine is a dlp (digital Light processing), digital Light processing optical engine.

In combination with the above description, in order to realize the transmission of audio and video data between the voice module 5 and the functional component, the voice module 5 is connected with the functional component through wired communication.

Of course, the projection host 1 may be a long-focus projection host 1 in addition to the ultra-short-focus projection host 1, and in this case, the optical engine included in the projection host 1 is a long-focus optical engine. Thus, the distance between the optical engine and the projection screen 2 is relatively long, that is, the distance between the projection host 1 and the projection screen 2 is relatively long. At this time, in order to realize the transmission of audio/video data between the voice module 5 and the functional component, the voice module 5 is connected with the functional component through wireless communication.

In this application embodiment, projection screen 2 can be frame-type screen, certainly, also can be the screen when going up and down, as long as can be convenient for camera subassembly 3 and pickup subassembly 4 fixed can, this application embodiment does not restrict to this.

When the projection screen 2 is a frame, the bottom of the projection screen 2 can be provided with support legs, and the support legs are supported on a support body such as a television cabinet; of course, the projection screen 2 may also be hung on a wall through a hanger, which is not limited in this embodiment.

When the projection screen 2 is a lifting screen, the projection apparatus further includes a receiving portion having a first receiving portion and a second receiving portion, the main projection unit 1 is located in the first receiving portion, the projection screen 2 is located in the second receiving portion, the projection screen 2 can extend out of the second receiving portion to be unfolded or received in the second receiving portion, and a light beam emitted from the main projection unit 1 can be emitted to the projection screen 2 when being unfolded through a light-transmitting area communicating with the first receiving portion.

In the embodiment of the present application, as shown in fig. 2 and 3, the camera assembly 3 and the pickup assembly 4 are fixed on the top of the projection screen 2, so that the camera assembly 3 and the pickup assembly 4 have a certain height, thereby facilitating the collection of video data and audio data. The camera assembly 3 and the pickup assembly 4 are separately fixed on the top of the projection screen 2, but of course, the camera assembly 3 and the pickup assembly 4 may be connected and then fixed on the top of the projection screen 2.

Of course, the camera assembly 3 and the sound pickup assembly 4 may be fixed to the side of the projection screen 2, besides being fixed to the top of the projection screen 2, as long as the video data and the audio data can be collected conveniently, which is not limited in the embodiment of the present application.

When the camera assembly 3 is connected with the pickup assembly 4 and then fixed to the top of the projection screen 2, as shown in fig. 2 or fig. 3, the projection apparatus further includes a connecting member 6, the pickup assembly 4 is fixed to the top of the projection screen 2 at this time, the connecting member 6 is fixedly connected with the pickup assembly 4, and the camera assembly 3 is connected with the connecting member 6 and located above the pickup assembly 4.

Optionally, for the connection between the pickup assembly 4 and the projection screen 2, as shown in fig. 2 and fig. 3, the top of the projection screen 2 has a first positioning hole 21, the pickup assembly 4 has a first positioning post 41, the first positioning post 41 is limited in the first positioning hole 21, and the pickup assembly 4 is further fixedly connected to the projection screen 2 by a screw. That is, as shown in fig. 2 and 3, the top of the projection screen 2 has a first threaded hole 22 in addition to the first positioning hole 21, the sound pickup assembly 4 has a first through hole 42 in addition to the first positioning post 41, and after the first positioning post 41 is limited in the first positioning hole 21, a screw is inserted through the first through hole 42 and is in threaded connection with the first threaded hole 22.

Of course, besides the way of fixing the sound pickup assembly 4 on the top of the projection screen 2 as described in the above embodiments, the fixing of the sound pickup assembly 4 can also be achieved by other ways, which is not limited in the embodiments of the present application. Illustratively, pickup assembly 4 is directly secured to the top of projection screen 2 by screws.

Alternatively, as shown in fig. 4, the cross section of the connecting member 6 is L-shaped, but of course, the cross section of the connecting member 6 may also be U-shaped, etc.

When the cross section of the connecting member 6 is L-shaped, as shown in fig. 4, the first side plate 62 of the connecting member 6 is attached to the top of the pickup assembly 4, and the second side plate 63 of the connecting member 6 is attached to the rear side of the pickup assembly 4, or attached to the left side or the right side of the pickup assembly 4, which is not limited in the embodiment of the present application.

When the cross section of connecting piece 6 is the U-shaped, the laminating of the middle curb plate of connecting piece 6 is at the top of pickup assembly 4, and two curb plates of connecting piece 6 are laminated respectively at the left surface and the right flank of pickup assembly 4.

It should be noted that, for the U-shaped connecting member 6, the side plates thereof are attached to the left side and the right side of the sound pickup assembly 4, that is, the side plates of the connecting member 6 are located in the visual field of the user, which may affect the aesthetic appearance of the projection apparatus. For the L-shaped connecting member 6, the second side plate 63 can be attached to the rear side of the sound pickup assembly 4, so as to avoid the view of the user and improve the aesthetic appearance of the projection apparatus.

Alternatively, for the connection between the connecting member 6 and the pickup assembly 4, when the cross section of the connecting member 6 is L-shaped, the first side plate 62 of the connecting member 6 is connected with the pickup assembly 4 by a snap, and the second side plate 63 of the connecting member 6 is fixedly connected with the pickup assembly 4 by a screw.

Illustratively, as shown in FIG. 4, the bottom surface of the first side plate 62 of the connector 6 has a male snap 64, and the top of the pickup assembly 4 has a female snap 43, so that the first side plate 62 of the connector 6 and the top of the pickup assembly 4 realize a snap connection based on the cooperation of the male snap 64 and the female snap 43; the second side plate 63 of the connecting member 6 has a third through hole 65, the rear side surface of the pickup assembly 4 has a third threaded hole 44, and at this time, a screw is screwed into the third threaded hole 44 through the third through hole 65, so as to fixedly connect the connecting member 6 and the pickup assembly 4.

Of course, besides the above-mentioned manner to realize the fixed connection between the connecting piece 6 and the sound pickup assembly 4, the fixed connection between the connecting piece 6 and the sound pickup assembly 4 may also be realized in other manners, which is not limited in this application.

In the embodiment of the application, when camera assembly 3 is connected with connecting piece 6, in order to make things convenient for camera assembly 3 to shoot the scene of different angles with gathering video data, camera assembly 3 and connecting piece 6 rotatable coupling.

In some embodiments, as shown in fig. 5 or fig. 6, the connecting member 6 has a rotating shaft 61, the camera head assembly 3 is connected to the rotating shaft 61, and the camera head assembly 3 can rotate relative to the pickup assembly 4 and can be limited to the current position.

Optionally, the connecting piece 6 is provided with a protrusion, the protrusion is provided with a through hole, and the rotating shaft 61 is limited in the through hole; the bottom of camera subassembly 3 has a pair of connecting plate, and the connecting plate has the trompil, and a pair of connecting plate card is at bellied both ends, and overlaps at the both ends of rotation axis 61, and the one end of rotation axis 61 has the screw hole, and the screw precession this screw hole, and can exert the packing force to the connecting plate. Thus, the tightening degrees of the screws in the threaded holes are different, and the pressing forces applied to the connecting plate are different, so that the rotational resistance of the connecting plate is also different, that is, the rotational resistance for adjusting the camera module 3 is different. When the rotational resistance of the camera assembly 3 can offset the rotational torque of the camera assembly 3 generated by gravity, the camera assembly 3 can be limited at the current position, and when the angle of the camera assembly 3 needs to be adjusted, external force can be applied to the camera assembly 3 to promote the rotation of the camera assembly 3.

Of course, the camera assembly 3 can be connected to the rotating shaft 61 of the connecting member 6 by other means besides the above-mentioned means, and the embodiment of the present application is not limited thereto. Illustratively, the camera module 3 and the connecting member 6 are directly rotatably connected through the rotating shaft 61, and then the camera module 3 is limited at the current position through the limiting bolt.

In other embodiments, the connecting member 6 has a ball, the camera assembly 3 is connected to the ball, and the camera assembly 3 can rotate relative to the pickup assembly 4 and can be limited to the current position.

Optionally, connecting piece 6 has the hemisphere groove, and the rotatable spacing of universal ball is in the hemisphere inslot, and the part that stretches out the hemisphere groove on the universal ball stretches out threaded column, and camera subassembly 3 and threaded column threaded connection this moment to realize the universal rotation of camera subassembly 3 relative pickup assembly 4. In addition, the connecting piece 6 is also provided with a limiting hole communicated with the hemispherical groove, so that after the camera assembly 3 rotates to a target position, the limiting pin can be screwed into the limiting hole and abutted against the universal ball, the universal ball is limited, and the camera assembly 3 is limited.

In the embodiment of the present application, the voice module 5 is mainly used for processing the video data and the audio data, and therefore does not need to be exposed. In order to improve the appearance of the projection apparatus, the voice module 5 may be fixed to the back of the projection screen 2. Of course, the voice module 5 may also be integrated into the projection host 1, which is not limited in the embodiments of the present application.

Alternatively, as shown in fig. 7 or fig. 8, since the rear surface of the projection screen 2 has the vertical beam 23, the voice module 5 can be fixed to the vertical beam 23.

Wherein, can fix pronunciation module 5 at the left side or the right side of erecting roof beam 23 to avoid when pronunciation module 5 fixes the rear side at erecting roof beam 23, increase the shared size in projection screen 2 rear. The left or right side of the vertical beam 23 refers to the side of the vertical beam 23 in the plane of the projection screen 2, and the rear side of the vertical beam 23 refers to the side of the vertical beam 23 that is away from the front of the projection screen 2.

Alternatively, as shown in fig. 7 and 8, the vertical beam 23 has a second positioning hole 231, the voice module 5 has a second positioning post 51, the second positioning post 51 is limited in the second positioning hole 231, and the voice module 5 is further fixedly connected to the vertical beam 23 by a screw. That is, the vertical beam 23 has a second threaded hole 232 in addition to the second positioning hole 231, and the voice module 5 has a second through hole 52 in addition to the second positioning post 51, and after the second positioning post 51 is limited in the second positioning hole 231, a screw is inserted through the second through hole 52 and is in threaded connection with the second threaded hole 232.

Of course, the sound pickup assembly 4 can be fixed on the top of the projection screen 2 by other means besides the way described in the above embodiments. Illustratively, pickup assembly 4 is directly secured to the top of projection screen 2 by screws.

Fixed at pronunciation module 5 and perpendicular roof beam 23, and pronunciation module 5 and projection host 1 are when wired communication connects, as shown in fig. 9 or fig. 10, projection equipment still includes host computer connecting wire 7 and anticreep buckle 8, the first end of host computer connecting wire 7 has the shaft shoulder, 8 covers of anticreep buckle are established on host computer connecting wire 7, the first end and the pronunciation module 5 electricity of host computer connecting wire 7 are connected, anticreep buckle 8 is fixed on pronunciation module 5, and anticreep buckle 8 is used for spacing the shaft shoulder.

Wherein, the second end of the host connecting wire 7 is electrically connected with the projection host 1. After anticreep buckle 8 and voice module 5 fixed connection, because anticreep buckle 8 can carry on spacingly to the shaft shoulder of the first end of host computer connecting wire 7 to anticreep buckle 8 can carry on spacingly to the first end of host computer connecting wire 7, in order to avoid the host computer connecting wire 7 from the possibility that drops on voice module 5, has guaranteed the reliability that host computer connecting wire 7 is connected with voice module 5.

When the anti-dropping buckle 8 is fixedly connected with the voice module 5, the anti-dropping buckle can be fixedly connected with the voice module through screws. And because the screw has certain length, in order to avoid the screw to stretch into the inside of pronunciation module 5 this moment, can set up protrudingly on the casing of pronunciation module 5, and then with anticreep buckle 8 and this protruding fixed connection.

Certainly, in this application embodiment, can also be through other modes with anticreep buckle 8 and pronunciation module 5 fixed connection to carry on spacingly to the first end of host computer connecting wire 7, this application embodiment does not do the restriction to this.

In the embodiment of the application, the projection host can receive the audio and video data sent by other projection equipment or mobile phones and the like based on the communication function, and then picture display and voice playing are carried out in the cooperation of the projection host and a projection screen, and simultaneously, the video data and the audio data of the current scene can be respectively collected through the camera assembly and the pickup assembly, and then the collected video data and the collected voice data are processed through the voice module and transmitted to the projection host, at the moment, the projection host can transmit the audio and video data processed by the voice module to other projection equipment based on the communication function, mobile phones and the like, so that data interaction between the projection equipment and other projection equipment or mobile phones and the like is realized, the social function of the projection equipment is realized, and the user viscosity is improved.

The above description is only illustrative of the embodiments of the present application and is not intended to limit the embodiments of the present application, and any modification, equivalent replacement, or improvement made within the spirit and principle of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims

1. A projection device, characterized in that the projection device comprises: the device comprises a projection host (1), a projection screen (2), a camera assembly (3), a pickup assembly (4) and a voice module (5);

the camera assembly (3) and the pickup assembly (4) are fixed on the projection screen (2), the camera assembly (3) and the pickup assembly (4) are respectively and electrically connected with the voice module (5), and the voice module (5) is in communication connection with the projection host (1);

the voice module (5) is used for processing the video data collected by the camera assembly (3) and the voice data collected by the pickup assembly (4) and transmitting the video data to the projection host (1), and the projection host (1) has a communication function.

2. A projection device as claimed in claim 1, characterized in that the camera assembly (3) and the pickup assembly (4) are fixed on top of the projection screen (2).

3. The projection device of claim 2, wherein the projection device further comprises a connector (6);

pickup assembly (4) are fixed the top of projection screen (2), connecting piece (6) with pickup assembly (4) fixed connection, camera subassembly (3) with connecting piece (6) are connected, and are located the top of pickup assembly (4).

4. A projection device as claimed in claim 3, characterized in that the connecting member (6) has a rotation axis (61), the camera assembly (3) is connected to the rotation axis (61), and the camera assembly (3) can rotate relative to the pickup assembly (4) and can be limited to a current position.

5. A projection device as claimed in claim 3, characterized in that the connecting element (6) has a ball-and-socket joint, to which the camera assembly (3) is connected, the camera assembly (3) being rotatable relative to the pickup assembly (4) and being able to be held in a current position.

6. The projection apparatus according to any of the claims 3 to 5, wherein the cross-section of the connector (6) is L-shaped, the first side plate (62) of the connector (6) is snap-fitted to the pickup assembly (4), and the second side plate (63) of the connector (6) is fixedly connected to the pickup assembly (4) by screws.

7. The projection device as claimed in any of claims 3 to 5, wherein the top of the projection screen (2) has a first positioning hole (21), the pickup assembly (4) has a first positioning post (41), the first positioning post (41) is limited in the first positioning hole (21), and the pickup assembly (4) is further fixedly connected to the projection screen (2) by a screw.

8. A projection device as claimed in claim 1, characterized in that the rear side of the projection screen (2) has a vertical beam (23), the speech module (5) being fixed to the vertical beam (23).

9. The projection apparatus according to claim 8, wherein the vertical beam (23) has a second positioning hole (231), the voice module (5) has a second positioning post (51), the second positioning post (51) is limited in the second positioning hole (231), and the voice module (5) is further fixedly connected to the vertical beam (23) by a screw.

10. The projection device of claim 8 or 9, wherein the projection device further comprises a host connection line (7) and an anti-drop buckle (8);

the first end of host computer connecting wire (7) has the shaft shoulder, anticreep buckle (8) cover is established on host computer connecting wire (7), the first end of host computer connecting wire (7) with pronunciation module (5) electricity is connected, anticreep buckle (8) are fixed on pronunciation module (5), just anticreep buckle (8) are used for right the shaft shoulder carries on spacingly.