CN112859493A - Household multifunctional projection device - Google Patents

Household multifunctional projection device Download PDF

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Publication number
CN112859493A
CN112859493A CN202110103619.5A CN202110103619A CN112859493A CN 112859493 A CN112859493 A CN 112859493A CN 202110103619 A CN202110103619 A CN 202110103619A CN 112859493 A CN112859493 A CN 112859493A
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CN
China
Prior art keywords
sliding
strip
glass screen
fixedly connected
box body
Prior art date
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Granted
Application number
CN202110103619.5A
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Chinese (zh)
Other versions
CN112859493B (en
Inventor
刘丽丽
肖松
刘文君
杨丽娟
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Xuzhou University of Technology
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Xuzhou University of Technology
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Priority to CN202110103619.5A priority Critical patent/CN112859493B/en
Publication of CN112859493A publication Critical patent/CN112859493A/en
Application granted granted Critical
Publication of CN112859493B publication Critical patent/CN112859493B/en
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    • 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
    • G03B21/14—Details
    • 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
    • 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
    • G03B21/14—Details
    • G03B21/142—Adjusting of projection optics
    • 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

Abstract

A household multifunctional projection device comprises a projector body, a sliding vertical plate, an adjusting handle, a telescopic mechanism and a glass screen switching mechanism, wherein the projector body comprises an outer shell, the sliding vertical plate, the adjusting handle, the telescopic mechanism and the glass screen switching mechanism; the outer shell body consists of a box body section and a funnel section, a sliding vertical plate is arranged in the box body section in a sliding mode, and a light source is arranged on the sliding vertical plate; a rectangular frame is arranged in the funnel section; the supporting plate is vertically and fixedly connected to the upper end of the funnel section and is connected with the glass screen conversion mechanism through two scissors folding parallel four-bar expansion joints; the glass screen conversion mechanism comprises a central roller, three strip-shaped mounting seats and three square frames, wherein the three strip-shaped mounting seats are circumferentially and uniformly fixedly connected to the outer surface of the central roller; the strip-shaped mounting seat is provided with a strip-shaped sliding groove along the length direction; each square frame is inserted into the strip-shaped sliding groove through the strip-shaped sliding block; sliding slots are formed in the three square frames, and glass screens A, B and C are respectively inserted into the three sliding slots. The device has multiple functions and is suitable for families.

Description

Household multifunctional projection device
Technical Field
The invention relates to a household multifunctional projection device.
Background
In the prior art, projectors are mainly applied to places such as conferences, teaching and entertainment, and few projection devices suitable for families are available. This is mainly because projectors on the market at present generally have only functions of projecting pictures and playing videos, and they lack functions suitable for home use. Therefore, how to develop a projection device suitable for home use is a challenge to be solved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a household multifunctional projection device which is multifunctional, simple in structure, convenient to operate and suitable for families.
The invention provides a household multifunctional projection device which comprises a projector body and a support frame, wherein the projector body comprises an outer shell, a sliding vertical plate, an adjusting handle, a telescopic mechanism and a glass screen switching mechanism;
the outer shell consists of a box body section and a funnel section, the right end of the box body section is open, and the left end of the box body section is closed by an end plate; the front side plate and the rear side plate of the box body section are symmetrically provided with two strip-shaped holes which are longitudinally arranged side by side; the funnel section is formed by fixedly connecting four isosceles trapezoid plates in pairs, the central line of the funnel section is horizontally arranged, the size of the small opening end of the funnel section is the same as that of the right opening end of the box body section, and the funnel section is fixedly connected with the right opening end of the box body section; a rectangular frame is arranged in a bottom plate of the box body section, and an installation groove for accommodating a mobile phone is formed in the rectangular frame;
the size of the sliding vertical plate is matched with that of the inner cavity of the box body section, the sliding vertical plate is arranged in the box body section in a sliding mode, a light source mounting seat is arranged in the center of one side, close to the funnel section, of the sliding vertical plate, and a light source is arranged in the light source mounting seat;
the two adjusting handles are symmetrically arranged on the front side and the rear side of the box body section, and each adjusting handle is fixedly connected with the side end part of the sliding vertical plate through two sliding rods which are arranged in the two strip-shaped holes in a sliding manner;
the telescopic mechanism comprises a supporting plate and two scissors folding type parallel four-bar telescopic joints, the supporting plate is vertically and fixedly connected to the upper end of the funnel section, the left ends of the two scissors folding type parallel four-bar telescopic joints are hinged to the front end and the rear end of the supporting plate respectively, and the right ends of the two scissors folding type parallel four-bar telescopic joints are connected with connecting plates;
the glass screen conversion mechanism comprises a central roller, three strip-shaped mounting seats which are circumferentially and uniformly fixedly connected to the outer surface of the central roller, and three square frames which are arranged corresponding to the three strip-shaped mounting seats; the central roller is rotatably connected between the pair of connecting plates through short shafts fixedly connected to the two ends of the central roller; a strip-shaped sliding groove is formed in the strip-shaped mounting seat along the length direction of the strip-shaped mounting seat; one end of each square frame is fixedly connected with a strip-shaped sliding block matched with the strip-shaped sliding groove, and the strip-shaped sliding block is inserted into the strip-shaped sliding groove to fixedly connect the square frame in the strip-shaped mounting seat; the three square frames are all provided with sliding slots, and a glass screen A, a glass screen B and a glass screen C are respectively inserted into the three sliding slots, wherein the glass screen A is a single-layer plane glass screen; the glass screen B is a double-layer plane glass screen; the glass screen C is a film magnifying lens; the glass screen A, the glass screen B and the glass screen C are positioned on the right side of the large opening end of the funnel section when rotating to the lower part of the central roller and are in a vertical state, and are aligned with the large opening end of the funnel section in the transverse direction;
the support frame is a telescopic support, and the upper end of the support frame is fixedly connected with the lower end of the funnel section.
Further, in order to carry out effectual heat dissipation, all seted up the louvre on the preceding curb plate of funnel section and the posterior lateral plate.
Furthermore, in order to provide a support frame which has a good support effect and is convenient for height state adjustment, the support frame consists of a telescopic rod body, a fixed sleeve, three support legs and three connecting rods;
the lower part of the telescopic rod body is inserted into the fixed sleeve in a sliding manner;
the upper end of the fixed sleeve is fixedly connected with a locking sleeve, a threaded hole is formed in the locking sleeve in the radial direction, a positioning bolt is arranged in the threaded hole in a threaded fit mode, and the positioning bolt is used for positioning the telescopic rod body; the lower end of the fixed sleeve is fixedly connected with a fixed support, the lower end of the fixed support is coaxially and fixedly connected with a guide rod, a sliding sleeve is sleeved outside the guide rod in a sliding manner, and the lower end of the guide rod is fixedly connected with a limiting ring for limiting the sliding sleeve downwards;
the upper ends of the three support legs are uniformly distributed around the sliding rod, and the upper ends of the three support legs are hinged with the fixed support;
the upper ends of the three connecting rods are respectively hinged with the inner sides of the upper parts of the three supporting legs, and the lower ends of the three connecting rods are respectively hinged with three hinged points which are uniformly distributed on the outer surface of the sliding sleeve.
Further, for the pitch angle of conveniently adjusting the shell body, a pair of connection otic placode A of lower extreme fixedly connected with of funnel section, otic placode B is connected to the upper end fixedly connected with of support frame, and connects otic placode B cartridge between a pair of connection otic placode A to through locking bolt fixed connection.
Furthermore, in order to conveniently adjust the fixed height of the mobile phone and facilitate the switching of the rectangular frame between the use state and the storage state, the rectangular frame is a telescopic frame, a containing groove matched with the shape and the size of the rectangular frame is formed in the bottom plate of the funnel section, and one end of the rectangular frame is hinged to one end of the containing groove.
In the invention, the adjusting handle is connected with the sliding vertical plate through the sliding rod, so that the position of the sliding vertical plate in the box body section can be conveniently adjusted, the distance between the light source and the funnel section can be further changed, and the projection proportion can be conveniently adjusted; the arrangement of the strip-shaped holes can ensure that the sliding vertical plate only moves in the transverse direction and can limit the moving range of the sliding vertical plate; the central roller of the glass screen switching mechanism is rotatably connected to the connecting plate at the right ends of the two scissors folding parallel four-bar expansion joints through the short shaft, so that the glass screen A, the glass screen B and the glass screen C can be switched in sequence conveniently in a rotating mode; the distance between each glass screen and the light source can be conveniently adjusted through the arrangement of the two scissors folding type parallel four-bar expansion joints; therefore, the size of the projection can be conveniently adjusted or the amplification scale of the mobile phone screen can be conveniently adjusted; through the arrangement of the glass screen A, the functions of assisting in projecting wall surface wall painting, drawing straight lines and the like can be achieved; through the setting of glass screen B, can play the effect of creating the atmosphere. Through the setting of glass screen C, can be convenient cooperate with the cell-phone of installing in the rectangle frame, watch the enlargeing of image. The device has various functions, simple structure and convenient operation, and is suitable for families.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the outer case of the present invention;
fig. 3 is a schematic structural view of the glass screen switching mechanism of the present invention.
In the figure: 1. the projector comprises a projector body, 2, a support frame, 3, a rectangular frame, 4, a sliding vertical plate, 5, an adjusting handle, 6, a telescopic mechanism, 7, a glass screen conversion mechanism, 8, a box body section, 9, a funnel section, 10, a strip-shaped hole, 11, a sliding rod, 12, a light source, 13, a scissors folding type parallel four-bar-rod telescopic joint, 14, a connecting plate, 15, a central roller, 16, a strip-shaped mounting seat, 17, a square frame, 18, a support plate, 19, a strip-shaped sliding groove, 20, a strip-shaped sliding block, 21, a glass screen A, 22, a glass screen B, 23, a glass screen C, 24, a heat dissipation hole, 25, a connecting lug plate A, 26, a connecting lug plate B, 27, a telescopic rod body, 28, a fixing sleeve, 29, a supporting leg, 30, a connecting rod, 31, a locking sleeve, 32, a positioning bolt, 33, a fixing support, 34, a guide rod, 35.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 3, a household multifunctional projection device comprises a projector body 1 and a support frame 2, wherein the projector body 1 comprises an outer shell, a sliding vertical plate 4, an adjusting handle 5, a telescopic mechanism 6 and a glass screen switching mechanism 7;
the outer shell is composed of a box body section 8 and a funnel section 9, the right end of the box body section 8 is open, and the left end of the box body section 8 is closed by an end plate; the front side plate and the rear side plate of the box body section 8 are symmetrically provided with two strip-shaped holes 10 which are longitudinally arranged side by side; the funnel section 9 is formed by fixedly connecting four isosceles trapezoid plates in pairs, the central line of the funnel section 9 is horizontally arranged, the size of the small opening end of the funnel section is the same as that of the right opening end of the box body section 8, and the small opening end of the funnel section is fixedly connected with the right opening end of the box body section 8; a rectangular frame 3 is installed inside the bottom plate of the box body section 8, and a mounting groove for accommodating a mobile phone is formed in the rectangular frame 3;
the size of the sliding vertical plate 4 is matched with the size of the inner cavity of the box body section 8, the sliding vertical plate is arranged in the box body section 8 in a sliding mode, a light source mounting seat is arranged at the center of one side, close to the funnel section 9, of the sliding vertical plate 4, and a light source 12 is arranged in the light source mounting seat;
the two adjusting handles 5 are symmetrically arranged at the front side and the rear side of the box body section 8, and each adjusting handle 5 is fixedly connected with the side end part of the sliding vertical plate 4 through two sliding rods 11 which are slidably arranged in two strip-shaped holes 10;
the telescopic mechanism 6 comprises a support plate 18 and two scissors folding parallel four-bar telescopic joints 13, the support plate 18 is vertically and fixedly connected to the upper end of the funnel section 9, the left ends of the two scissors folding parallel four-bar telescopic joints 13 are respectively hinged with the front end and the rear end of the support plate 18, and the right ends of the two scissors folding parallel four-bar telescopic joints 13 are both connected with a connecting plate 14;
the glass screen switching mechanism 7 comprises a central roller 15, three strip-shaped mounting seats 16 which are circumferentially and uniformly fixedly connected to the outer surface of the central roller 15, and three square frames 17 which are arranged corresponding to the three strip-shaped mounting seats 16; the central roller 15 is rotatably connected between the pair of connecting plates 14 through short shafts fixedly connected at two ends of the central roller; a strip-shaped sliding groove 19 is formed in the strip-shaped mounting seat 16 along the length direction of the strip-shaped mounting seat; one end of each square frame 17 is fixedly connected with a strip-shaped sliding block 20 matched with the strip-shaped sliding groove 19, and the strip-shaped sliding block 20 is inserted into the strip-shaped sliding groove 19 to fixedly connect the square frame 17 into the strip-shaped mounting seat 16; the three square frames 17 are all provided with sliding slots 37, glass screens A21, B22 and C23 are respectively inserted into the three sliding slots 37, and the A21 is a single-layer plane glass screen; the glass screen B22 is a double-layer plane glass screen; the glass screen C23 is a film magnifying lens; when the glass screen A21, the glass screen B22 and the glass screen C23 rotate to the lower part of the central roller 15 and are in a vertical state, the glass screens A21, the glass screen B22 and the glass screen C23 are all positioned on the right side of the large opening end of the funnel section 9 and are aligned with the large opening end of the funnel section 9 in the transverse direction;
the support frame 2 is a telescopic support, and the upper end of the support frame is fixedly connected with the lower end of the funnel section 9.
In order to effectively dissipate heat, heat dissipation holes 24 are formed in the front side plate and the rear side plate of the funnel section 9.
In order to provide a support frame which has a good support effect and is convenient for adjusting the height state, the support frame 2 consists of a telescopic rod body 27, a fixed sleeve 28, three support legs 29 and three connecting rods 30;
the lower part of the telescopic rod body 27 is inserted into the fixed sleeve 28 in a sliding manner;
the upper end of the fixed sleeve 28 is fixedly connected with a locking sleeve 31, a threaded hole is formed in the locking sleeve 31 in the radial direction, a positioning bolt 32 is installed in the threaded hole in a threaded fit mode, and the positioning bolt 32 is used for positioning the telescopic rod body 27; the lower end of the fixed sleeve 28 is fixedly connected with a fixed support 33, the lower end of the fixed support 33 is coaxially and fixedly connected with a guide rod 34, the outer part of the guide rod 34 is sleeved with a sliding sleeve 35 in a sliding manner, and the lower end of the guide rod 34 is fixedly connected with a limiting ring for limiting the sliding sleeve 35;
the upper ends of the three support legs 29 are uniformly distributed around the slide bar, and the upper ends are hinged with the fixed support 33;
the upper ends of the three connecting rods 30 are respectively hinged with the inner sides of the upper parts of the three supporting legs 29, and the lower ends of the three connecting rods 30 are respectively hinged with three hinged points which are uniformly distributed on the outer surface of the sliding sleeve 35.
In order to adjust the pitch angle of the outer shell conveniently, the lower end of the funnel section 9 is fixedly connected with a pair of connecting lug plates a25, the upper end of the support frame 2 is fixedly connected with a connecting lug plate B26, and the connecting lug plate B26 is inserted between the pair of connecting lug plates a25 and is fixedly connected through a locking bolt.
In order to adjust the fixed height of the mobile phone conveniently and to facilitate the switching between the use state and the storage state of the rectangular frame, the rectangular frame 3 is a telescopic frame, an accommodating groove 36 matched with the rectangular frame 3 in shape and size is formed in the bottom plate of the funnel section 9, and one end of the rectangular frame 3 is hinged to one end of the accommodating groove 36.
The adjusting handle 5 is connected with the sliding vertical plate 4 through the sliding rod 11, so that the position of the sliding vertical plate 4 in the box body section can be conveniently adjusted, the distance between the light source 12 and the funnel section 9 can be further changed, and the projection proportion can be conveniently adjusted; the arrangement of the strip-shaped holes 10 can ensure that the sliding vertical plate 4 only moves in the transverse direction and can limit the moving range of the sliding vertical plate 4; the central roller 15 of the glass screen switching mechanism 7 is rotatably connected to the connecting plate 14 at the right end of the two scissors folding parallel four-bar expansion joints 13 through a short shaft, so that the glass screen A21, the glass screen B22 and the glass screen C23 can be switched in sequence conveniently in a rotating mode; the distance between each glass screen and the light source 12 can be conveniently adjusted through the arrangement of the two scissors folding type parallel four-bar expansion joints 13; therefore, the size of the projection can be conveniently adjusted or the amplification scale of the mobile phone screen can be conveniently adjusted;
by arranging the glass screen A21, the functions of assisting in projecting wall surface hanging and drawing, straight line drawing and the like can be achieved; when wanting to hang thing or draw the straight line on the wall, can put projecting apparatus central position before indoor wall at first to adjust the support frame to suitable height, turn on the light source, make light cover to want to hang on the wall of thing in advance. The glass screen switching mechanism is rotated to the glass screen A21, the magnetic attraction clamping pieces which are the same as the patterns of the object to be hung are placed on one surface of the glass screen, the other surface of the glass screen is fixed by the small magnets, the desired typesetting is arranged on the glass screen in the method, then the telescopic mechanism is pulled to adjust the distance between the glass screen and the large opening end of the funnel section until the shadow effect accords with the expected effect, then the sliding vertical plate is pulled to further finely adjust the size of the shadow, and when the shadow effect is adjusted to be proper, a photo frame or a line is hung on the wall according to the shadow position. Therefore, the problem that some objects are hung on the wall easily and askew can be effectively solved, previewing can be carried out through the shadow before hanging the objects so as to determine whether the objects are attractive, and the problem that whether the positions need to be adjusted can be known through previewing the shadow. In actual operation, after an object is hung on a wall, the object stands in front of the wall and is repeatedly viewed and adjusted, and the series of operations waste time and physical strength, and the expected effects of beauty, neatness and the like are often difficult to achieve finally. This problem is well solved by the arrangement of the glass screen a. In addition, the wall surface can be drawn according to certain requirements, and transverse lines, vertical lines and oblique lines can be achieved in an auxiliary mode by drawing line segments on the glass screen A in advance and then projecting the line segments. In the process, the rectangular frame is placed in the accommodating groove so as not to influence the projection effect.
Through glass screen B22's setting, can play the effect of creating the atmosphere, because glass screen B is double-deck glass screen, therefore, can directly insert the card paper that has the image wherein, also can directly scribble on one deck glass screen wherein, then adjust telescopic machanism and slip riser again, can be on the wall or the roof projection image, can play the effect of adjusting the environment atmosphere like this. In the process, the rectangular frame is placed in the accommodating groove so as not to influence the projection effect.
Through glass screen C23's setting, can be convenient with install the cell-phone in rectangle frame 3 and cooperate, short shape frame 3 turns to vertical state, puts the cell-phone on it again, broadcasts the video that wants to watch, adjusts the distance of glass screen C apart from the cell-phone through telescopic machanism 6, can adjust the magnification, when adjusting suitable effect, can be in the image of the back of directly watching through glass screen C amplification in a distance.

Claims (5)

1. A household multifunctional projection device comprises a projector body (1) and a support frame (2), and is characterized in that;
the projector body (1) comprises an outer shell, a sliding vertical plate (4), an adjusting handle (5), a telescopic mechanism (6) and a glass screen switching mechanism (7);
the outer shell is composed of a box body section (8) and a funnel section (9), the right end of the box body section (8) is open, and the left end of the box body section (8) is closed by an end plate; the front side plate and the rear side plate of the box body section (8) are symmetrically provided with two strip-shaped holes (10) which are longitudinally arranged side by side; the funnel section (9) is formed by fixedly connecting four isosceles trapezoid plates pairwise, the central line of the funnel section (9) is horizontally arranged, the size of the small opening end of the funnel section is the same as that of the right opening end of the box body section (8), and the funnel section is fixedly connected with the right opening end of the box body section (8); a rectangular frame (3) is installed inside a bottom plate of the box body section (8), and an installation groove for accommodating a mobile phone is formed in the rectangular frame (3);
the size of the sliding vertical plate (4) is matched with the size of an inner cavity of the box body section (8), the sliding vertical plate is arranged in the box body section (8) in a sliding mode, a light source mounting seat is installed in the center of one side, close to the funnel section (9), of the sliding vertical plate (4), and a light source (12) is installed in the light source mounting seat;
the two adjusting handles (5) are symmetrically arranged on the front side and the rear side of the box body section (8), and each adjusting handle (5) is fixedly connected with the side end part of the sliding vertical plate (4) through two sliding rods (11) which are slidably arranged in the two strip-shaped holes (10);
the telescopic mechanism (6) comprises a supporting plate (18) and two scissors folding type parallel four-bar telescopic joints (13), the supporting plate (18) is vertically and fixedly connected to the upper end of the funnel section (9), the left ends of the two scissors folding type parallel four-bar telescopic joints (13) are hinged to the front end and the rear end of the supporting plate (18) respectively, and the right ends of the two scissors folding type parallel four-bar telescopic joints (13) are connected with a connecting plate (14);
the glass screen switching mechanism (7) comprises a central roller (15), three strip-shaped mounting seats (16) which are circumferentially and uniformly fixedly connected to the outer surface of the central roller (15), and three square frames (17) which are arranged corresponding to the three strip-shaped mounting seats (16); the central roller (15) is rotatably connected between the pair of connecting plates (14) through short shafts fixedly connected to the two ends of the central roller; a strip-shaped sliding groove (19) is formed in the strip-shaped mounting seat (16) along the length direction of the strip-shaped mounting seat; one end of each square frame (17) is fixedly connected with a strip-shaped sliding block (20) matched with the strip-shaped sliding groove (19), and the strip-shaped sliding blocks (20) are inserted into the strip-shaped sliding grooves (19) to fixedly connect the square frames (17) into the strip-shaped mounting seats (16); sliding slots (37) are formed in the three square frames (17), a glass screen A (21), a glass screen B (22) and a glass screen C (23) are respectively inserted into the three sliding slots (37), and the glass screen A (21) is a single-layer plane glass screen; the glass screen B (22) is a double-layer plane glass screen; the glass screen C (23) is a film magnifying lens; the glass screen A (21), the glass screen B (22) and the glass screen C (23) are positioned on the right side of the large opening end of the funnel section (9) when rotating below the central roller (15) and are in a vertical state, and are aligned with the large opening end of the funnel section (9) in the transverse direction;
the support frame (2) is a telescopic support, and the upper end of the support frame is fixedly connected with the lower end of the funnel section (9).
2. The household multifunctional projection device as claimed in claim 1, wherein the front side plate and the rear side plate of the funnel section (9) are both provided with heat dissipation holes (24).
3. A household multifunctional projection device as claimed in claim 1 or 2, wherein said support frame (2) is composed of a telescopic rod body (27), a fixed sleeve (28), three legs (29) and three connecting rods (30);
the lower part of the telescopic rod body (27) is inserted into the fixed sleeve (28) in a sliding manner;
the upper end of the fixed sleeve (28) is fixedly connected with a locking sleeve (31), a threaded hole is formed in the locking sleeve (31) in the radial direction, a positioning bolt (32) is installed in the threaded hole in a threaded fit mode, and the positioning bolt (32) is used for positioning the telescopic rod body (27); the lower end of the fixed sleeve (28) is fixedly connected with a fixed support (33), the lower end of the fixed support (33) is coaxially and fixedly connected with a guide rod (34), the outer part of the guide rod (34) is sleeved with a sliding sleeve (35) in a sliding manner, and the lower end of the guide rod (34) is fixedly connected with a limiting ring for limiting the sliding sleeve (35) downwards;
the upper ends of the three support legs (29) are uniformly distributed around the sliding rod, and the upper ends of the three support legs are hinged with the fixed support (33);
the upper ends of the three connecting rods (30) are respectively hinged with the inner sides of the upper parts of the three supporting legs (29), and the lower ends of the three connecting rods (30) are respectively hinged with three hinged points which are uniformly distributed on the outer surface of the sliding sleeve (35).
4. The household multifunctional projection device as claimed in claim 3, wherein a pair of connecting ear plates A (25) is fixedly connected to the lower end of the funnel section (9), a connecting ear plate B (26) is fixedly connected to the upper end of the support frame (2), and the connecting ear plate B (26) is inserted between the pair of connecting ear plates A (25) and is fixedly connected with the connecting ear plates A through locking bolts.
5. The household multifunctional projection device as claimed in claim 4, wherein the rectangular frame (3) is a telescopic frame, a receiving groove (36) matched with the rectangular frame (3) in shape and size is formed in the bottom plate of the funnel section (9), and one end of the rectangular frame (3) is hinged to one end of the receiving groove (36).
CN202110103619.5A 2021-01-26 2021-01-26 Household multifunctional projection device Active CN112859493B (en)

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Application Number Priority Date Filing Date Title
CN202110103619.5A CN112859493B (en) 2021-01-26 2021-01-26 Household multifunctional projection device

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Application Number Priority Date Filing Date Title
CN202110103619.5A CN112859493B (en) 2021-01-26 2021-01-26 Household multifunctional projection device

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CN112859493A true CN112859493A (en) 2021-05-28
CN112859493B CN112859493B (en) 2022-05-13

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CN112066198A (en) * 2020-09-30 2020-12-11 胡炳强 Multi-layer multi-surface rotatable and wingspan rotatable display equipment

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