CN215986857U - Projector with adjusting structure for improving stability - Google Patents
Projector with adjusting structure for improving stability Download PDFInfo
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- CN215986857U CN215986857U CN202022968366.1U CN202022968366U CN215986857U CN 215986857 U CN215986857 U CN 215986857U CN 202022968366 U CN202022968366 U CN 202022968366U CN 215986857 U CN215986857 U CN 215986857U
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Abstract
The utility model discloses a projector with an adjusting structure to increase stability, which comprises a main body shell, a lens assembly arranged on the main body shell and a light source arranged in the main body shell, wherein the lens assembly comprises a lens part and a driving part, and the driving part drives the lens part to do telescopic action. The driving part of the projector can adjust the telescopic position of the lens part when working, the clamping component with the telescopic function arranged on the rotating part can be matched with various lens parts with different specifications, and the guide strip has the function of enabling the lens part to move linearly, so that the lens part is prevented from shaking, and the telescopic stability of the lens part is improved.
Description
Technical Field
The utility model relates to a projector, in particular to a projector with an adjusting structure to increase stability.
Background
The projector is widely applied to different occasions such as teaching, scientific research, meetings, reports and the like as office equipment.
In a common focusing mode of a projector, a focusing ring is sleeved at an exposed end of a lens, and the lens is driven to move back and forth by rotating the focusing ring, so that focusing is realized.
With the continuous progress of projector technology, the lens part of the projector is controlled by a key or by a remote control to realize the telescopic function, but the traditional lens part is well-matched in size and has limitation in use.
The conventional lens part is easy to shake when adjusting the focal length, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a projector with an adjusting structure to increase the stability, and the projector is designed to be matched with lens parts with different specifications and to increase the stability of the lens parts.
In order to solve the technical problem, the utility model is realized by the following scheme: the utility model relates to a projector with an adjusting structure to increase stability, which comprises a main body shell, a lens assembly arranged on the main body shell and a light source arranged in the main body shell, wherein the lens assembly comprises:
the lens part is of a lens cone structure, a tapered structure is formed from one end, away from the light source, of the lens part to one end, close to the light source, of the lens part, a spiral groove is formed in the outer wall of the lens cone of the lens part, at least one guide groove is formed in the lens part along the inner wall of the lens cone, a guide strip slides into the guide groove, and the guide strip is fixed on the main body shell;
the driving part is installed on the main body shell and provided with a clearance, the via hole of the light source is formed, the driving part is provided with a power source and a rotating part driven by the power source to do rotating motion, the rotating part is provided with a through hole coaxial with the via hole, the inner side wall of the through hole is provided with a plurality of mounting holes distributed in a ring array mode, each mounting hole is provided with a clamping head assembly pointing to the center of the through hole, the clamping head assembly is arranged on the mounting hole in a telescopic mode, the lens part is inserted into the through hole, a spiral groove in the outer wall of the lens part is clamped by the clamping head assembly, and the rotating part can drive the lens part to do telescopic motion after rotating.
Further, the driving part includes:
the power source support is arranged in the main body shell, and the front side surface of the power source support is provided with a mounting plate;
the servo motor is the power source, is arranged on the back surface of the mounting plate and is in driving connection with a driving wheel arranged on the front surface of the mounting plate;
the rotating part is rotatably arranged on the front surface of the mounting plate and is arranged at the opening part of the through hole, the outer ring of the rotating part is a gear ring, and a belt is sleeved between the rotating part and the driving wheel.
Furthermore, a first pressing wheel assembly with an adjustable wheel body, a second pressing wheel assembly with an adjustable wheel body and a third pressing wheel assembly with an adjustable wheel body are further installed on the front face of the installing plate, the first pressing wheel assembly and the second pressing wheel assembly are located on the same side of the belt, pressing wheels on the first pressing wheel assembly and the second pressing wheel assembly are all abutted to the belt, the third pressing wheel assembly is located on the other side of the belt, and the pressing wheels on the third pressing wheel assembly are abutted to the belt.
Further, a belt escape prevention wheel is installed on the front surface of the installation plate, and the belt escape prevention wheel prevents the belt from escaping from the rotating part.
Further, the chuck assembly includes:
a cone tip sized to fit into the helical groove and chamfered at an arc angle;
the column part is detachably connected with the round bottom surface of the cone part and is provided with a column cavity, the opening part of the column cavity is provided with an outward protruding limiting ring, the column part is inserted into the mounting hole and is screwed in the mounting hole through an annular cover for fixing, and the column part can move in the mounting hole;
and the compression spring is arranged in the column cavity, one end of the compression spring is propped against the bottom surface of the mounting hole after compression, and the other end of the compression spring is propped against the round bottom surface of the cone.
Compared with the prior art, the utility model has the beneficial effects that: the driving part of the projector can adjust the telescopic position of the lens part when working, the clamping component with the telescopic function arranged on the rotating part can be matched with various lens parts with different specifications, and the guide strip has the function of enabling the lens part to move linearly, so that the lens part is prevented from shaking, and the telescopic stability of the lens part is improved.
Drawings
Fig. 1 is a view showing an outline of a projector according to the present invention.
Fig. 2 is a schematic structural diagram of a driving portion according to the present invention.
FIG. 3 is a schematic view of the mounting position of the chuck assembly of the present invention.
FIG. 4 is a schematic view of a chuck assembly according to the present invention.
Fig. 5 is a schematic structural diagram of the lens portion of the present invention.
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, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the protection scope of the present invention is more clearly and clearly defined. It should be apparent that the described embodiments of the present invention are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1, the specific structure of the present invention is as follows:
referring to fig. 1 to 5, a projector with an adjustment structure to increase stability according to the present invention includes a main body housing 1, a lens assembly 2 disposed on the main body housing 1, and a light source 218 disposed in the main body housing 1, wherein the lens assembly includes:
the lens part is of a lens barrel structure, a tapered structure is formed from one end, away from the light source 218, of the lens part to one end, close to the light source 218, of the lens part, a spiral groove 216 is formed in the outer wall of the lens barrel of the lens part, at least one guide groove is formed in the lens part along the inner wall of the lens barrel, a guide strip 217 slides into the guide groove, and the guide strip 217 is fixed on the main body shell 1;
the driving part is arranged on the main body shell 1 and is provided with a via hole for avoiding the light source 218, the driving part is provided with a power source and a rotating part 21 driven by the power source to do rotating motion, the rotating part 21 is provided with a through hole coaxial with the via hole, the inner side wall of the through hole is provided with a plurality of mounting holes 211 distributed in an annular array manner, each mounting hole 211 is provided with a clamping head assembly 3 pointing to the center of the through hole, the clamping head assembly 3 is arranged in the mounting hole 211 in a telescopic manner, the lens part is inserted into the through hole, a spiral groove 216 in the outer wall of the lens part is clamped by the clamping head assembly 3, and the rotating part 21 can drive the lens part to do telescopic motion after rotating.
A preferred technical solution of this embodiment: the driving part includes:
a power source support 25 which is arranged in the main body shell 1, and the front side surface of the power source support is provided with a mounting plate 24;
the servo motor 26 is the power source, is arranged on the back surface of the mounting plate 24 and is in driving connection with a driving wheel arranged on the front surface of the mounting plate 24;
the rotating part 21 is rotatably arranged on the front surface of the mounting plate 24 and is arranged at the opening part of the through hole, the outer ring of the rotating part 21 is a gear ring, and a belt is sleeved between the rotating part 21 and the driving wheel.
A preferred technical solution of this embodiment: the front of the mounting plate 24 is further provided with a first pinch roller assembly 23 with an adjustable roller body, a second pinch roller assembly 22 with an adjustable roller body and a third pinch roller assembly 27 with an adjustable roller body, the first pinch roller assembly 23 and the second pinch roller assembly 22 are positioned on the same side of the belt, pinch rollers on the first pinch roller assembly 23 and the second pinch roller assembly 22 are tightly abutted against the belt, the third pinch roller assembly 27 is positioned on the other side of the belt, and the pinch rollers on the third pinch roller assembly are tightly abutted against the belt.
A preferred technical solution of this embodiment: a belt escape prevention pulley 29 is further installed on the front surface of the mounting plate 24, and the belt escape prevention pulley 29 prevents the belt from escaping from the rotating portion 21.
A preferred technical solution of this embodiment: the cartridge assembly 3 includes:
a tapered portion 31, the tip of the tapered portion 31 being sized to fit into the spiral groove 216 and the tip of the tapered portion 31 being chamfered;
the column part 32 is detachably connected with the round bottom surface of the cone part 31 and is provided with a column cavity, the opening part of the column cavity is provided with an outward convex limiting ring, the column part 32 is inserted into the mounting hole 211 and is screwed into the mounting hole 211 through an annular cover 33, and the column part 32 can move in the mounting hole 211;
and a compression spring 34 inserted into the column cavity, one end of which abuts against the bottom surface of the mounting hole 211 after compression, and the other end of which abuts against the round bottom surface of the tapered part 31.
Example 2:
as shown in fig. 1-5, the lens portion has two guide grooves, two guide bars 217 are respectively disposed in the two guide grooves, when the lens portion extends and contracts, the lens portion will move along the two guide bars 217 without deviation, and the guide bars 217 have elasticity and can be adapted to lens portions of different specifications.
When the focal length of the lens portion needs to be adjusted, the servo motor 26 is started, the servo motor 26 drives the driving wheel to rotate, the driving wheel drives the belt to rotate, the belt drives the rotating portion 21 to rotate, the rotating portion 21 drives the chuck assembly 3 thereon to rotate, and the chuck assembly 3 rotates to drive the lens portion to extend and retract along the guide strip 217 after rotating because the chuck assembly 3 is clamped in the spiral groove 216.
In summary, the driving portion of the projector of the present invention works to adjust the telescopic position of the lens portion, the holding assembly with telescopic function disposed on the rotating portion can be matched with various lens portions with different specifications, and the guide bar functions to make the lens portion move linearly, so as to avoid the lens portion from shaking and increase the telescopic stability of the lens portion.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A projector having an adjustment structure for increasing stability, comprising a main body case (1) and a lens assembly (2) provided on the main body case (1), a light source (218) provided in the main body case (1), wherein the lens assembly comprises:
the lens part is of a lens barrel structure, a tapered structure is formed from one end, away from the light source (218), of the lens part to one end, close to the light source (218), of the lens part, a spiral groove (216) is formed in the outer wall of the lens barrel of the lens part, at least one guide groove is formed in the lens part along the inner wall of the lens barrel, a guide strip (217) slides into the guide groove, and the guide strip (217) is fixed on the main body shell (1);
the driving part is arranged on the main body shell (1) and is provided with a via hole for avoiding the light source (218), the driving part is provided with a power source and a rotating part (21) driven by the power source to do rotating motion, the rotating part (21) is provided with a through hole coaxial with the via hole, the inner side wall of the through hole is provided with a plurality of mounting holes (211) distributed in a ring array manner, each mounting hole (211) is provided with a clamping head component (3) pointing to the circle center of the through hole, the clamping head component (3) can stretch in the mounting hole (211), the lens part is inserted in the through hole, a spiral groove (216) on the outer wall of the lens part is clamped by the clamping head component (3), and the rotating part (21) can drive the lens part to do stretching motion after rotating;
the cartridge assembly (3) comprises:
a cone portion (31), wherein the tip of the cone portion (31) is sized to be placed into the spiral groove (216) and the tip of the cone portion (31) is chamfered;
the column part (32) is detachably connected with the round bottom surface of the cone part (31) and is provided with a column cavity, the opening part of the column cavity is provided with an outer convex limiting ring, the column part (32) is inserted into the mounting hole (211) and is screwed and fixed in the mounting hole (211) through an annular cover (33), and the column part (32) can move in the mounting hole (211);
and the compression spring (34) is arranged in the column cavity, one end of the compression spring is pressed against the bottom surface of the mounting hole (211), and the other end of the compression spring is pressed against the round bottom surface of the cone part (31).
2. A projector as claimed in claim 1, wherein said driving section includes:
a power source support (25) which is arranged in the main body shell (1) and the front side surface of which is provided with a mounting plate (24);
the servo motor (26) is a power source, is arranged on the back surface of the mounting plate (24), and is in driving connection with a driving wheel arranged on the front surface of the mounting plate (24);
the rotating part (21) is rotatably arranged on the front surface of the mounting plate (24) and is arranged at the opening part of the through hole, the outer ring of the rotating part is a gear ring, and a belt is sleeved between the rotating part (21) and the driving wheel.
3. The projector with the adjusting structure to increase the stability according to claim 2, wherein a first pinch roller assembly (23) with an adjustable wheel, a second pinch roller assembly (22) with an adjustable wheel, and a third pinch roller assembly (27) with an adjustable wheel are further mounted on the front surface of the mounting plate (24), the first pinch roller assembly (23) and the second pinch roller assembly (22) are located on the same side of the belt, the pinch rollers thereof are abutted against the belt, the third pinch roller assembly (27) is located on the other side of the belt, and the pinch roller thereof is abutted against the belt.
4. A projector having an adjustment structure for increasing stability according to claim 2, wherein a belt escape preventing wheel (29) is further installed on the front surface of said mounting plate (24), and said belt escape preventing wheel (29) prevents said belt from escaping from said rotating portion (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022968366.1U CN215986857U (en) | 2020-12-10 | 2020-12-10 | Projector with adjusting structure for improving stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022968366.1U CN215986857U (en) | 2020-12-10 | 2020-12-10 | Projector with adjusting structure for improving stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215986857U true CN215986857U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022968366.1U Active CN215986857U (en) | 2020-12-10 | 2020-12-10 | Projector with adjusting structure for improving stability |
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| Country | Link |
|---|---|
| CN (1) | CN215986857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909680A (en) * | 2021-11-11 | 2022-01-11 | 中国科学院力学研究所 | Internal rotation laser head device |
-
2020
- 2020-12-10 CN CN202022968366.1U patent/CN215986857U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909680A (en) * | 2021-11-11 | 2022-01-11 | 中国科学院力学研究所 | Internal rotation laser head device |
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