CN112040354B - External device of bluetooth projector - Google Patents

External device of bluetooth projector Download PDF

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Publication number
CN112040354B
CN112040354B CN202010937205.8A CN202010937205A CN112040354B CN 112040354 B CN112040354 B CN 112040354B CN 202010937205 A CN202010937205 A CN 202010937205A CN 112040354 B CN112040354 B CN 112040354B
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China
Prior art keywords
box shell
sound box
shaped
rotating shaft
loudspeaker box
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CN202010937205.8A
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Chinese (zh)
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CN112040354A (en
CN112040354B8 (en
Inventor
徐佳丽
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Tengzhou Weida Intelligent Technology Co ltd
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Individual
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Publication of CN112040354B8 publication Critical patent/CN112040354B8/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)

Abstract

The invention discloses external equipment of a Bluetooth projector, relates to the technical field of projector equipment, and solves the problems that the existing external equipment of the projector has limited functions, mostly only has a single loudspeaker function, cannot be used as a support of projection equipment, and has poor practicability. An external device of a Bluetooth projector comprises a sound box shell, wherein the sound box shell comprises a covering plate and a positioning ring, the sound box shell is integrally of a rectangular structure, two loudspeakers are symmetrically embedded in the front end face of the sound box shell, a connecting wire is arranged in the center of the back end face of the sound box shell, and two sound expansion covers are symmetrically, tightly and fixedly arranged on the sound box shell; four positioning rings are correspondingly and symmetrically supported on the left side wall and the right side wall of the sound box shell up and down. The two sound amplifying covers can be used for two purposes, can be used as a supporting base when being locked and installed at the bottom of the sound box shell, can play a role in increasing volume when being locked and butted with the two loudspeakers, and is more convenient for outdoor playing and using.

Description

External device of bluetooth projector
Technical Field
The invention relates to the technical field of projector equipment, in particular to external equipment of a Bluetooth projector.
Background
With the maturity of mobile internet technology and the popularization of mobile devices such as mobile phones and tablets, the habit of users using projectors has changed fundamentally, the connection of projectors by video and audio lines is old, the wireless connection projection technology gradually becomes the standard configuration of a new generation of intelligent projectors, and devices such as computers, mobile phones and tablets can be directly connected to projectors by means of bluetooth, WIFI and the like; the mature high-speed wireless transmission technology can still ensure the stability of the output signal of the projector and the exquisite and smooth picture, and the projector is often externally connected with sound equipment for meeting the audiovisual requirement during the projection.
For example, patent No. CN201721870743.X discloses an external stereo set of telescopic smart machine, which comprises a base, the last fixed surface of base is connected with the barrel, the back fixedly connected with area seat bearing of barrel inner wall, the inner wall fixedly connected with shaft coupling of area seat bearing, the equal fixedly connected with screw rod in both ends of shaft coupling, the inner wall of barrel is provided with two audio amplifiers, the back fixedly connected with rack of audio amplifier, rack and screw rod meshing, the spout has been seted up to the inner wall of barrel. According to the invention, the two screw threads are opposite in direction, so that the two sound boxes are close to or away from each other, the two sound boxes are close to each other through the forward rotation of the servo motor, the two sound boxes are retracted into the cylinder body to protect the sound boxes, when the loudspeaker box is used, the two sound boxes extend out of the two ends of the cylinder body to be unfolded for use, and the two sound boxes are unfolded from the two ends to form a certain distance, so that the playing has a stereoscopic impression.
The external stereo set equipment function of current projector is limited, mostly only possesses single function of raising one's voice, can not act as projection equipment's support and use, and the practicality is relatively poor, causes equipment must carry special support when using outside, uses comparatively inconveniently, and external stereo set equipment's volume is limited in addition, and the application that can not be fine is used in outdoor spacious projection environment.
Disclosure of Invention
The invention aims to provide an external device of a Bluetooth projector, which aims to solve the problems that the external sound equipment provided by the background technology has limited functions, mostly only has a single loudspeaker function, cannot be used as a support of projection equipment and has poor practicability.
In order to achieve the purpose, the invention provides the following technical scheme: an external device of a Bluetooth projector comprises a sound box shell, wherein the sound box shell comprises a cover plate, a sound amplifying cover, a vertical support positioning shaft and a positioning ring, the sound box shell is integrally of a rectangular structure, two loudspeakers are symmetrically embedded and mounted on the front end face of the sound box shell, a connecting wire is arranged at the center of the back end face of the sound box shell, and the sound box shell is symmetrically locked and mounted with two sound amplifying covers; four positioning rings are supported on the left side wall and the right side wall of the sound box shell in an up-down corresponding and symmetrical mode, two supports are symmetrically arranged on the left positioning ring and the right positioning ring in a rotating and inserting mode, and a rotating shaft penetrates through the bottom of the rear side of the sound box shell in a rotating and inserting mode; the bracket comprises a hexagonal rotating shaft, the head ends of the two brackets are fixedly welded with the hexagonal rotating shaft, the upper end and the lower end of the hexagonal rotating shaft are in cylindrical structures, and the four cylindrical sections are correspondingly matched with the left positioning ring and the right positioning ring in a rotating and inserting way; a push rod is sleeved and slidably arranged on the two hexagonal rotating shafts; the rear end of the top plate of the sound box shell is supported and provided with a covering plate, and two groups of vertical support positioning shafts are symmetrically welded on the left side wall and the right side wall of the sound box shell.
Preferably, the sound box shell further comprises an L-shaped insertion rod, the right side wall of the sound box shell is provided with the L-shaped insertion rod through spring pushing and vertical insertion, and the bottom of the L-shaped insertion rod is fixedly welded with a frame-shaped clamping seat.
Preferably, the support comprises a shifting shaft and a strip-shaped track frame, the two supports are combined by an upper L-shaped horizontal support rod and a lower L-shaped horizontal support rod, the two L-shaped horizontal support rods at the bottom are directly welded with the two hexagonal rotating shafts together for supporting the bottom surface, and the two L-shaped horizontal support rods at the top are sleeved on the two hexagonal rotating shafts in a sliding manner; the head end sections of the horizontal support rods at the tops of the two supports are respectively supported and welded with a shifting shaft, and a strip-shaped track frame is installed on the shifting shafts in a sliding fit mode.
Preferably, when the two brackets rotate to contract and are attached to the back end face of the loudspeaker box shell, the strip-shaped track frame at the top end slides, is attached and hidden at the bottom of the cover plate.
Preferably, the rotating shaft comprises a gear, a knob is welded and fixed on the left end section of the rotating shaft, a gear is welded on the right end section of the rotating shaft in a sleeved mode, and a frame-shaped clamping seat at the bottom of the L-shaped inserted rod is matched with the gear in a corresponding top insertion mode.
Preferably, the middle sections of the two push rods are respectively provided with a sliding ring, the sliding rings are correspondingly matched with the six-edge rotating shaft sleeve in a sliding manner, and the rear sections of the two push rods are correspondingly sleeved on the left and right vertical support positioning shafts in a sliding manner.
Preferably, the rotating shaft further comprises push rods, two push rods are symmetrically welded on the left end section and the right end section of the rotating shaft, and the two push rods rotate to be abutted and contacted with the front half sections of the two push rods.
Preferably, the mounting grooves of the two loudspeakers at the front end of the sound box shell are both provided with threads, and the two sound diffusion covers can be taken out from the bottom of the sound box shell and butted and locked on the mounting grooves of the two loudspeakers.
Compared with the prior art, the invention has the beneficial effects that:
1. when the two supports are rotated and opened, the two supports can be used as supporting and placing racks of the projector, so that the projector can perform normal projection even when the projector does not carry the supporting rack, the trouble that the supporting rack is specially carried when the projector is used outside is eliminated, in addition, the two supports expand the functions of external equipment, one device of the projector has multiple purposes, the practicability is better, the two supports can be rotated and contracted when the projector is not used, no additional space is occupied, and the shielding plate can cover and hide the strip-shaped track frame in the idle state to keep the flatness of the top surface of the sound box shell;
2. the two supports can rotate around the four positioning rings, stretch, open and close to adjust the distance between the strip-shaped track frame and the sound box shell, so that the two supports can be suitable for supporting and placing projection equipment with different sizes, and the application is wide;
3. the two push rods are in pushing fit with the two push rods in a rotating manner, the rotating shaft can synchronously lift and adjust the two supports by the forward and reverse knobs, so that the projection angle of the projector can be adjusted conveniently, the trouble of step-by-step adjustment is avoided, and in addition, the knob action of the rotating shaft is simple, so that the two supports and the projector can be adjusted conveniently and quickly;
4. the two sound amplifying covers can be used for two purposes, can be used as a supporting base when being locked and installed at the bottom of the sound box shell, can play a role in increasing the volume when being locked and butted with the two loudspeakers, and is more convenient for outdoor playing and use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a back three-dimensional structure of the present invention;
FIG. 3 is a schematic bottom three-dimensional structure of the present invention;
FIG. 4 is a schematic bottom view of the present invention in an unfolded state;
FIG. 5 is a schematic view of the present invention in an expanded state;
FIG. 6 is a schematic view of the positioning ring of the present invention in its installed position;
FIG. 7 is a schematic view of the L-shaped insertion rod mounting position of the present invention;
FIG. 8 is a schematic view of a stent structure according to the present invention;
FIG. 9 is a schematic view of a rotating shaft structure according to the present invention;
in the figure: 1. a sound box housing; 101. a cover plate; 102. a sound amplification cover; 103. a vertical supporting positioning shaft; 104. a positioning ring; 105. an L-shaped insert rod; 2. a support; 201. a hexagonal rotating shaft; 202. a shaft is poked; 203. a strip-shaped track frame; 3. a rotating shaft; 301. a top rod; 302. a gear; 4. a push rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 9, an embodiment of the present invention includes: an external device of a Bluetooth projector comprises a sound box shell 1, wherein the sound box shell 1 comprises a cover plate 101, a sound amplifying cover 102, a vertical support positioning shaft 103 and a positioning ring 104, the whole sound box shell 1 is of a rectangular structure, two loudspeakers are symmetrically embedded and installed on the front end face of the sound box shell, a connecting line is arranged at the center of the back end face of the sound box shell, and the sound box shell 1 is symmetrically locked and installed with the sound amplifying cover 102; four positioning rings 104 are correspondingly and symmetrically supported on the left side wall and the right side wall of the sound box shell 1 up and down, two brackets 2 are symmetrically and rotatably inserted on the left positioning ring 104 and the right positioning ring 104, and a rotating shaft 3 penetrates through and is rotatably inserted in the bottom position of the rear side of the sound box shell 1; the support 2 comprises a hexagonal rotating shaft 201, the head ends of two supports 2 are fixedly welded with the hexagonal rotating shaft 201, the upper end and the lower end of the hexagonal rotating shaft 201 are in cylindrical structures, and the four cylindrical sections are correspondingly matched with the left positioning ring 104 and the right positioning ring 104 in a rotating and inserting manner; a push rod 4 is sleeved and slidably mounted on the two hexagonal rotating shafts 201; the rear end of the top plate of the sound box shell 1 is provided with a shielding plate 101 in a supporting manner, two groups of four vertical supporting positioning shafts 103 are symmetrically welded on the left side wall and the right side wall of the sound box shell 1, the rotating shaft 3 comprises a gear 302, a knob is welded and fixed on the left end section of the rotating shaft 3, a gear 302 is welded on the right end section of the rotating shaft 3 in a sleeved manner, and a frame-shaped clamping seat at the bottom of the L-shaped inserted rod 105 is correspondingly inserted and matched with the gear 302; the sound box shell 1 further comprises an L-shaped inserting rod 105, the right side wall of the sound box shell 1 is provided with the L-shaped inserting rod 105 in a vertical insertion mode through spring pushing, the bottom of the L-shaped inserting rod 105 is fixedly welded with a frame-shaped clamping seat, the L-shaped inserting rod 105 can be connected with a fixed gear 302 in a plugging mode to enable the rotating shaft 3 and the two ejector rods 301 to be kept in the using posture of the rotary top support, and the two supports 2 are fixed at the positions after lifting adjustment; the middle sections of the two push rods 4 are respectively provided with a sliding ring, the sliding rings are correspondingly matched with the hexagonal rotating shaft 201 in a sliding mode, the rear sections of the two push rods 4 are correspondingly sleeved on the left vertical support positioning shaft 103 and the right vertical support positioning shaft 103 in a sliding mode, and the two push rods 4 can be limited by the two vertical support positioning shafts 103 to directly slide up and down to avoid rotating deviation.
Further, the support 2 comprises a dial shaft 202 and a strip-shaped track frame 203, the two supports 2 are combined by an upper L-shaped horizontal support rod and a lower L-shaped horizontal support rod, wherein the two L-shaped horizontal support rods at the bottom are directly welded with the two six-edge rotating shafts 201 to support the bottom surface, and the two L-shaped horizontal support rods at the top are sleeved on the two six-edge rotating shafts 201 in a sliding manner; the head sections of the horizontal support rods at the tops of the two supports 2 are respectively supported and welded with a shifting shaft 202, the two shifting shafts 202 are provided with a strip-shaped track frame 203 in a sliding sleeve matching mode, the two supports 2 can rotate around the four positioning rings 104 to be opened and closed in a telescopic mode, the distance between the strip-shaped track frame 203 and the sound box shell 1 is adjusted, the two supports 2 can be suitable for supporting and placing projection equipment with different sizes, the application is wide, the rotating opening and closing angles of the two supports 2 can be fixedly maintained through the jacking of the plum blossom bolts on the positioning ring 104 at the top end of the right side, and in addition, through the jacking sliding matching of the two shifting shafts 202 and the strip-shaped track frame 203, the strip-shaped track frame 203 can slide back and forth along with the opening and.
Further, when two place the support 2 rotates shrink and the laminating is hidden in the bottom of cover plate 101 in the bar track frame 203 on its top when laminating on the back terminal surface of audio amplifier casing 1, it can be used as the support rack of projector when two places support 2 rotate and open, make projection who's equipment also can normally show under the condition that does not carry the support frame, the trouble of carrying the support frame specially when saving out the use, two places support 2 has expanded external device's function in addition, make its a ware multi-purpose, have better practicality, and the rotatable shrink of two places support 2 does not additionally take up space when idle, and cover plate 101 can cover the planarization that the bar track frame 203 that hides idle state keeps audio amplifier casing 1 top surface.
Further, the rotating shaft 3 further comprises a top rod 301, two top rods 301 are symmetrically welded on the left end section and the right end section of the rotating shaft 3, the two top rods 301 rotate to be abutted against and contacted with the front half sections of the two push rods 4, the rotating shaft 3 can be used for adjusting the two supports 2 by forward and reverse knob lifting through the rotating and pushing matching of the two top rods 301 and the two push rods 4, the projection angle of the projector can be conveniently adjusted, the rotating shaft 3 can be used for synchronously lifting and adjusting the two supports 2 to save the trouble of step-by-step adjustment, in addition, the knob action of the rotating shaft 3 is simple, and the two supports 2 and the projector can be conveniently and quickly adjusted.
Further, all set up screw thread on the mounting groove of loudspeaker at loudspeaker housing 1 front end both ends, two public address cover 102 can take out the butt joint from loudspeaker housing 1's bottom and lock on loudspeaker's mounting groove in two places, and two public address covers 102 can be dual-purpose, can be used as the support base when its locking is installed in loudspeaker housing 1's bottom, can play the effect of increase volume when it docks with loudspeaker locking in two places, and the outdoor broadcast of being convenient for more is used.
The working principle is as follows: when the two supports 2 are rotated and opened, the two supports can be used as a support rack of a projector, so that projection equipment can be projected normally without carrying a support frame, the trouble of carrying the support frame specially when used outside is eliminated, the strip track frame 203 can slide back and forth along with the opening and closing of the two supports 2 to adjust the distance between the strip track frame 203 and the sound box shell 1 by the top sliding fit of the two shifting shafts 202 and the strip track frame 203, so that the two supports 2 can be suitable for supporting and placing projection equipment with different sizes, the two supports 2 can be rotated and contracted and fit on the back end surface of the sound box shell 1 without occupying extra space when the sound box is idle, the shielding plate 101 can shield the strip track frame 203 in an idle state to keep the smoothness of the top surface of the sound box shell 1, and the rotating shaft 3 can be rotated and lifted by the forward and backward knobs to adjust the projection angle of the two supports 2 on the projector by the rotating and pushing fit of the two push rods 301 and the two, the two loudspeaker covers 102 can be used as a dual-purpose device, and can be used as a supporting base when being locked and installed at the bottom of the sound box shell 1, and can play a role of increasing volume when being locked and butted with two loudspeakers, thereby being more convenient for outdoor playing and using.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides an external device of bluetooth projector which characterized in that: the loudspeaker box comprises a loudspeaker box shell (1), wherein the loudspeaker box shell (1) comprises a cover plate (101), a sound amplifying cover (102), a vertical support positioning shaft (103) and a positioning ring (104), the whole loudspeaker box shell (1) is of a rectangular structure, two loudspeakers are symmetrically embedded in the front end face of the loudspeaker box shell, a connecting line is arranged in the center of the back end face of the loudspeaker box shell, and the loudspeaker box shell (1) is symmetrically locked and provided with the two sound amplifying covers (102); four positioning rings (104) are correspondingly and symmetrically supported on the left side wall and the right side wall of the sound box shell (1) up and down, two brackets (2) are symmetrically and rotatably inserted into the left positioning ring and the right positioning ring (104), and a rotating shaft (3) penetrates through and is rotatably inserted into the bottom of the rear side of the sound box shell (1); the support (2) comprises hexagonal rotating shafts (201), the head ends of the two supports (2) are fixedly welded with the hexagonal rotating shafts (201), the upper ends and the lower ends of the two hexagonal rotating shafts (201) are of cylindrical structures, and the four cylindrical sections are correspondingly matched with the left positioning ring (104) and the right positioning ring (104) in a rotating and inserting manner; a push rod (4) is sleeved and slidably mounted on the six-edge rotating shaft (201) at two positions; a shielding plate (101) is supported at the rear end of the top plate of the sound box shell (1), and two groups of vertical support positioning shafts (103) are symmetrically welded on the left side wall and the right side wall of the sound box shell (1);
the middle sections of the two push rods (4) are respectively provided with a sliding ring which is correspondingly matched with the hexagonal rotating shaft (201) in a sliding way, and the rear sections of the two push rods (4) are correspondingly sleeved and arranged on the left and right vertical support positioning shafts (103) in a sliding way.
2. The external device of a bluetooth projector as claimed in claim 1, wherein: the loudspeaker box shell (1) further comprises an L-shaped inserted bar (105), the right side wall of the loudspeaker box shell (1) is vertically inserted with the L-shaped inserted bar (105) through spring pushing, and the bottom of the L-shaped inserted bar (105) is fixedly welded with a frame-shaped clamping seat.
3. The external device of a bluetooth projector as claimed in claim 1, wherein: the support (2) comprises a shifting shaft (202) and a strip-shaped track frame (203), the two supports (2) are combined by an upper L-shaped horizontal support rod and a lower L-shaped horizontal support rod, the two L-shaped horizontal support rods at the bottom are directly welded with the two hexagonal rotating shafts (201) to support the bottom surface, and the two L-shaped horizontal support rods at the top are sleeved on the two hexagonal rotating shafts (201) in a sliding manner; the head end sections of the horizontal support rods at the tops of the two supports (2) are respectively supported and welded with a shifting shaft (202), and a strip-shaped track frame (203) is arranged on the shifting shafts (202) in a sliding sleeve matching mode.
4. The external device of a bluetooth projector as claimed in claim 1, wherein: when the two supports (2) rotate, contract and are attached to the back end face of the loudspeaker box shell (1), the strip-shaped track frame (203) at the top end slides, is attached and hidden at the bottom of the cover plate (101).
5. The external device of a bluetooth projector as claimed in claim 1, wherein: the rotating shaft (3) comprises a gear (302), a knob is fixedly welded on the left end section of the rotating shaft (3), the gear (302) is welded on the right end section of the rotating shaft (3) in a sleeved mode, and a frame-shaped clamping seat at the bottom of the L-shaped insertion rod (105) is matched with the gear (302) in a corresponding jacking mode.
6. The external device of a bluetooth projector as claimed in claim 1, wherein: the rotating shaft (3) further comprises push rods (301), two push rods (301) are symmetrically welded on the left end section and the right end section of the rotating shaft (3), and the two push rods (301) rotate to be abutted and contacted with the front half sections of the two push rods (4).
7. The external device of a bluetooth projector as claimed in claim 1, wherein: the loudspeaker box is characterized in that the mounting grooves of the loudspeakers at two positions of the front end of the loudspeaker box shell (1) are respectively provided with a thread, and the two sound diffusion covers (102) can be taken out from the bottom of the loudspeaker box shell (1) to be in butt joint and locked on the mounting grooves of the loudspeakers at two positions.
CN202010937205.8A 2020-09-08 2020-09-08 External device of bluetooth projector Active CN112040354B8 (en)

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Publication number Priority date Publication date Assignee Title
CN105954962A (en) * 2016-07-04 2016-09-21 潘正辉 Portable smart phone projector

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Effective date of registration: 20210426

Address after: Room 1418, Lunda Jinling International, Beixin street, Tengzhou City, Zaozhuang City, Shandong Province, 277599

Applicant after: Tengzhou Weida Intelligent Technology Co.,Ltd.

Address before: Zhejiang Baoshi Electronics Co., Ltd. No. 2189 Jiashan Avenue, Dayun Town, Jiashan County, Jiaxing City, Zhejiang Province

Applicant before: Xu Jiali

TA01 Transfer of patent application right
CI03 Correction of invention patent

Correction item: Patentee|Address|Patent agency|Agent

Correct: Tengzhou Weida Intelligent Technology Co.,Ltd.|Room 1418, Lunda Jinling International, Beixin street, Tengzhou City, Zaozhuang City, Shandong Province, 277599|Anhui Weida Intellectual Property Agency (general partnership) 34166|Li Yingzi

False: Xu Jiali|314100 Zhejiang Baoshi Electronics Co., Ltd., 2189 Jiashan Avenue, Dayun Town, Jiashan County, Jiaxing City, Zhejiang Province|N/A

Number: 19-01

Volume: 37

Correction item: Patentee|Address|Patent agency|Agent

Correct: Tengzhou Weida Intelligent Technology Co.,Ltd.|Room 1418, Lunda Jinling International, Beixin street, Tengzhou City, Zaozhuang City, Shandong Province, 277599|Anhui Weida Intellectual Property Agency (general partnership) 34166|Li Yingzi

False: Xu Jiali|314100 Zhejiang Baoshi Electronics Co., Ltd., 2189 Jiashan Avenue, Dayun Town, Jiashan County, Jiaxing City, Zhejiang Province|N/A

Number: 19-01

Page: The title page

Volume: 37

CI03 Correction of invention patent