Projector

Abstract

The utility model discloses a projector, which relates to the technical field of projectors and comprises a projector shell, lock rotating shaft columns are respectively arranged on two side surfaces of the projector shell; two supporting rods are symmetrically arranged at the two ends of the base support, and the upper ends of the two supporting rods are rotationally connected with the two side faces of the projector shell respectively; the connecting hole is formed in the upper end of the supporting rod, an annular limiting ring is arranged on the inner side of the circumferential direction of the connecting hole, and an arc-shaped notch is formed in the edge of the inner side of the annular limiting ring. According to the projector, the technical problems that an existing projector is basically composed of a whole machine module, the angle cannot be flexibly adjusted, the whole machine needs to be heightened or achieved through other structures, and the projector is inconvenient to use by a user are solved; and the projector shell can freely rotate by a certain angle relative to the upper end part of the supporting rod, so that the whole projector can be suitable for different crowds and different scenes, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a projector technical field, especially a kind of projector. BACKGROUND

[0002] As a kind of emerging product, projector can be used for watching video by user, which is the device that image or video is projected or reflected on screen by digital light processing technology or LCD liquid crystal imaging technology.Projector can be accessed corresponding image and video signal by different signal source, such as computer, mobile phone, DVD, DV, to realize playing.

[0003] However, the existing projector is basically composed of whole machine module, most of which do not contain support, and the user needs to raise the whole machine or other structure to adjust the angle after getting the product, which makes it difficult to be suitable for different groups of people and different scenes, and the user is not convenient when using it.Therefore, a projector for solving the above problems is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of projector, solve the technical problem that the existing projector is basically composed of whole machine module, angle cannot be flexibly adjusted, whole machine needs to be raised or other structure is realized, user is not convenient when using it.

[0005] To achieve the above object, the utility model provides a kind of projector, comprising:

[0006] Projector shell, the two side faces of the projector shell are respectively provided with lock rotation shaft column;

[0007] Base support, two support rods are symmetrically arranged at the two ends of the base support, and the upper ends of the two support rods are respectively connected to the two side faces of the projector shell in a rotatable manner;

[0008] Connecting hole, which is provided at the upper end of the support rod, the circumferential inner side of the connecting hole is provided with an annular limiting ring, the inner side edge of the annular limiting ring is provided with an arc-shaped gap, and the arc-shaped gap is in sliding fit with the lock rotation shaft column.

[0009] Preferably, the annular limiting ring and the inner circumferential side of the connecting hole form a planar groove, a rotating shaft is arranged in the planar groove, and the rotating shaft comprises a limiting portion and a clamping portion arranged integrally, the limiting portion is rotatably connected to the planar groove, and the clamping portion is connected to the side face of the projector shell.

[0010] Preferably, a plurality of screw columns are arranged on the two side faces of the projector shell, and the outer circumferential side of the screw column is in sliding connection with the inner circumferential side of the annular limiting ring.

[0011] Preferably, the end surface of the screw post and the end surface of the lock rotating shaft post are respectively provided with a first screw hole, the outer side surface of the rotating shaft is provided with a plurality of first through holes, and one end of a first countersunk screw is connected to the first screw hole through the first through hole.

[0012] Preferably, a buffer washer is arranged in the planar groove, the inner side surface of the buffer washer is attached to the bottom surface of the planar groove, and the outer side surface of the buffer washer is attached to the inner side surface of the limiting portion.

[0013] Preferably, the side surface of the projector shell is provided with a clamping groove, and the clamping portion is clamped and connected to the clamping groove.

[0014] Preferably, a limiting clamping groove is arranged at the position of the connecting hole, and the limiting clamping groove is clamped and connected to the sealing cover plate.

[0015] Preferably, the outer side surface of the supporting rod is provided with a plurality of second screw holes, the outer side surface of the sealing cover plate is provided with a plurality of second through holes, and one end of a second countersunk screw is connected to the second screw hole through the second through hole.

[0016] Preferably, a sink groove for accommodating the second screw is arranged at the position of the second through hole.

[0017] Preferably, the bottom surface of the base support is provided with an anti-skid pad.

[0018] With respect to the above background art, the projector provided by the present application has the following beneficial effects: the arc-shaped notch is arranged at the inner side edge of the annular limiting ring, the arc-shaped notch is in sliding cooperation with the lock rotating shaft post, the projector shell can drive the lock rotating shaft post to reciprocate in the arc-shaped notch, and thus the projector shell can freely rotate by a certain angle relative to the upper end portion of the supporting rod, and it is no longer necessary to use other structures to raise the whole machine or to realize angle adjustment, the user can flexibly adjust the angle of the projector shell relative to the screen according to the user's own use requirements, and the image or video can be accurately projected onto the screen, so that the overall projector can be applied to different people and different scenes, the convenience of using the projector is increased, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0020] Figure 1 A perspective view of the projector provided by the embodiments of the present application is shown in the drawings.

[0021] Figure 2 This is an assembly diagram of the projector housing and base bracket provided in an embodiment of the present utility model;

[0022] Figure 3 An exploded view of the projector provided in an embodiment of this utility model;

[0023] Figure 4 A plan view of the projector provided in an embodiment of this utility model;

[0024] Figure 5 A plan view of the projector after the concealed sealing cover is provided in an embodiment of this utility model;

[0025] Figure 6 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 7 for Figure 5 Enlarged diagram of point B in the middle.

[0027] Specifically, 1-Projector housing; 101-Locking shaft post; 102-Screw post; 103-First screw hole; 104-Snap-fit ​​groove; 2-Base bracket; 201-Support rod; 202-Limiting slot; 203-Second screw hole; 3-Connecting hole; 4-Annular limiting ring; 401-Arc-shaped notch; 402-Limiting locking point; 5-Flat groove; 6-Rotating shaft; 601-Limiting part; 602-Snap-fit ​​part; 7-Buffer washer; 8-Sealing cover plate; 801-Sink; 9-Anti-slip pad. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 and Figure 2As shown, in order to achieve the above objectives, this utility model provides a projector, including: a base bracket 2, a projector housing 1, and locking shaft columns 101 disposed on both sides of the projector housing 1. The projector housing 1 is part of the whole unit module, and an imaging component for displaying images or videos on the screen is disposed inside the projector housing 1.

[0031] Two support rods 201 are symmetrically arranged at both ends of the base bracket 2. The support rods 201 are integrally formed with the base bracket 2, and the upper ends of the two support rods 201 are rotatably connected to the two sides of the projector housing 1. Preferably, the support rod 201 is located at the right end of the base bracket 2, and the angle between the support rod 201 and the top surface of the base bracket 2 is an acute angle, which is between 60° and 90°. The support rod 201 is inclined towards the left end of the base bracket 2, so that the horizontal projection position of the connection point between the support rod 201 and the projector housing 1 is located at the middle position in the direction of the left and right ends of the base bracket 2. This ensures that the weight of the projector acts on the middle position of the base bracket 2, thereby keeping the projector in a stable state.

[0032] like Figure 3 and Figure 6 As shown, the upper end of the support rod 201 is provided with a connecting hole 3, and an annular limiting ring 4 is provided on the inner side of the connecting hole 3. An arc-shaped notch 401 is provided on the inner edge of the annular limiting ring 4. The locking shaft column 101 is slidably disposed in the arc-shaped notch 401. The outer circumferential side of the locking shaft column 101 is an annular surface, and the outer circumferential side of the locking shaft column 101 fits against the inner circumferential side of the arc-shaped notch 401. Specifically, the annular limiting ring 4 is integrally disposed at the end of the connecting hole 3 near the projector housing 1. After the upper end of the support rod 201 is connected to the projector housing 1, the annular limiting ring 4 is sleeved on the outer circumferential side of the locking shaft column 101, and the arc-shaped notch 401 slides with the locking shaft column 101. Therefore, pushing the projector housing 1 can drive the locking shaft column 101 to reciprocate within the arc-shaped notch 401 along the circumference of the annular limiting ring 4, thereby allowing the projector housing 1 to rotate freely at a certain angle relative to the upper end of the support rod 201. This eliminates the need for other structures to raise the entire unit or adjust the angle. Users can flexibly adjust the angle of the projector housing 1 relative to the screen according to their own usage needs, accurately projecting images or videos onto the screen. This broadens the application scenarios of the overall projector and effectively breaks through the limitations of application scenarios.

[0033] like Figure 5 and Figure 7 As shown, it should be noted that the two ends of the arc-shaped notch 401 in the circumferential direction are limiting points 402. The limiting points 402 restrict the rotation angle of the annular limiting ring 4, so as to limit the rotation angle of the projector housing 1 relative to the upper end of the support rod 201.

[0034] In one embodiment of this utility model, the annular limiting ring 4 and the inner circumferential side of the connecting hole 3 combine to form a planar groove 5. The planar groove 5 is located at the end of the connecting hole 3 away from the projector housing 1, and the planar groove 5 is annular in shape and has a certain stepped feature. A rotating shaft 6 is provided in the planar groove 5. The rotating shaft 6 includes an integrally formed limiting part 601 and a snap-fit ​​part 602. The limiting part 601 is rotatably connected to the planar groove 5, and the snap-fit ​​part 602 is connected to the side of the projector housing 1. The snap-fit ​​part 602 can lock the projector housing 1 to the inside of the support rod 201. At the same time, the limiting part 601 is rotatably connected to the planar groove 5 to ensure that the projector housing 1 rotates relative to the support rod 201 at a certain angle. It should be noted that another function of the rotating shaft 6 is to limit the locking shaft post 101 to always be located within the arc-shaped notch 401 to ensure that the annular limiting ring 4 and the locking shaft post 101 can be stably engaged.

[0035] In addition, several screw posts 102 are respectively provided on both sides of the projector housing 1. Specifically, there are two screw posts 102. The two screw posts 102 and one locking shaft post 101 are distributed at equal angles on the inner side of the annular limiting ring 4. The outer peripheral side of the two screw posts 102 can always slide to connect with the inner peripheral side of the annular limiting ring 4. The screw posts 102 serve to limit the annular limiting ring 4, so that the annular limiting ring 4 can fit the outer peripheral side of the two screw posts 102 and the outer peripheral side of the locking shaft post 101 and rotate stably.

[0036] Furthermore, since the outer periphery of the locking shaft post 101 is located within the arc-shaped notch 401, when the locking shaft post 101 contacts a certain limiting point 402, the annular limiting ring 4 will no longer continue to rotate relative to the locking shaft post 101, effectively limiting the rotation angle of the annular limiting ring 4, thereby controlling the range of angle adjustment of the projector housing 1. Preferably, by limiting the length of the arc-shaped notch 401, the acute angle between the bottom surface of the projector housing 1 and the bottom surface of the base bracket 2 is between -30° and 90°, ensuring that the projector housing 1 has a sufficient angle adjustment range relative to the base bracket 2, maximizing the satisfaction of various usage scenarios, and increasing the convenience of using the projector.

[0037] In one embodiment of this utility model, the end face of the screw post 102 and the end face of the locking shaft post 101 are respectively provided with first screw holes 103, and the outer side of the rotating shaft 6 is provided with several first through holes. One end of the first countersunk screw passes through the first through hole and connects to the first screw hole 103, thereby locking the rotating shaft 6 on the upper projector housing 1, so that the annular limiting ring 4 is stably sleeved on the circumferential outer side of the locking shaft post 101 and the two screw posts 102.

[0038] In addition, a buffer washer 7 is provided in the planar groove 5. The inner side of the buffer washer 7 is in contact with the bottom surface of the planar groove 5, and the outer side of the buffer washer 7 is in contact with the inner side of the limiting part 601. The buffer washer 7 can improve the static friction and dynamic friction between the planar groove 5 and the rotating shaft 6, so that the projector housing 1 can stay in a certain structural state in real time when the angle is adjusted, without the need to use additional parts to lock the structural state of the projector housing 1.

[0039] Preferably, the buffer washer 7 is made of rubber. Under the compression of the limiting part 601 and the flat groove 5, the viscoelastic properties of the rubber can absorb vibration energy and produce a damping effect under dynamic load. This property can not only reduce the fretting wear between parts, but also further hinder sliding through energy dissipation, thereby forming a certain damping effect, making the projector housing 1 more accurate when adjusting the angle, and it will not easily loosen.

[0040] In one embodiment of this utility model, a snap-fit ​​groove 104 is provided on the side of the projector housing 1, and a snap-fit ​​part 602 snaps into the snap-fit ​​groove 104. Specifically, after the rotating shaft 6 is fixedly connected to the locking shaft post 101 and the screw post 102 by the first countersunk screw, the snap-fit ​​part 602 will be inserted into the snap-fit ​​groove 104, and the outer peripheral side of the snap-fit ​​part 602 will fit against the inner peripheral side of the snap-fit ​​groove 104. When the projector housing 1 is pushed to rotate relative to the support rod 201, the screw post 102 and the locking shaft post 101 reciprocate within the arc-shaped notch 401. At the same time, the screw post 102 and the locking shaft post 101 drive the rotating shaft 6 to move through the first countersunk screw and the snap-fit ​​part 602. At this time, the limiting part 601 rotates relative to the planar groove 5. The snap-fit ​​part 602 serves as the main force transmission component, and the first countersunk screw serves as an auxiliary force transmission component, enhancing the connection stability between the first countersunk screw and the screw post 102 and the locking shaft post 101, thereby improving the stability of the projector housing 1 when it is fixed.

[0041] In one embodiment of this utility model, a limiting groove 202 is provided at the connection hole 3. The limiting groove 202 engages with the sealing cover plate 8. The sealing cover plate 8 can seal the rotating shaft 6 and the annular limiting ring 4 and other components to ensure that the connection hole 3 remains clean and prevents dust from entering the buffer gasket 7 and the arc-shaped notch 401. This prevents the buffer gasket 7 from being affected by dust and thus accelerates its wear, effectively ensuring that the rotation of the projection lifting shell always maintains a high degree of flexibility.

[0042] In addition, the outer side of the support rod 201 is provided with several second screw holes 203, and the outer side of the sealing cover plate 8 is provided with several second through holes. One end of the second countersunk screw passes through the second through hole and connects to the second screw hole 203, thereby fixing the sealing cover in the limiting groove 202.

[0043] Preferably, a recess 801 for accommodating the second screw is provided at the second through hole position. After one end of the second screw passes through the second through hole and connects to the second screw hole 203, the other end of the second screw is hidden in the structure of the sealing cover plate 8. That is, the other end of the recess 801 is completely located in the recess 801, preventing the second screw from scratching the user. This makes it safer for the user to carry and move the projector, and improves the overall tactile feel of the projector.

[0044] like Figure 4 As shown, in one embodiment of the present invention, an anti-slip pad 9 is provided on the bottom surface of the base support 2. The anti-slip pad 9 is made of elastic material, preferably rubber material. The anti-slip pad 9 can increase the friction between the base support 2 and the table surface, and the anti-slip pad 9 can reduce the vibration amplitude when the projector is working, so as to improve the stability of the overall projector working environment.

[0045] During assembly, the projector housing 1 is assistedly fixed to the upper end of the support rod 201. The annular limiting ring 4 is sleeved on the outer circumferential side of the locking shaft post 101 and the two screw posts 102. The locking shaft post 101 is located inside the arc-shaped notch 401. The buffer washer 7 is sleeved on the outer circumferential side of the locking shaft post 101 and the two screw posts 102. The inner side of the buffer washer 7 is in contact with the bottom surface of the planar groove 5. The rotating shaft 6 is installed in the planar groove 5. The rotating shaft 6 is fixedly connected to the locking shaft post 101 and the two screw posts 102 by countersunk screws. The outer side of the buffer washer 7 is in contact with the inner side of the rotating shaft 6, and the snap-fit ​​part 602 snaps into the snap-fit ​​groove 104. Finally, the sealing cover plate 8 is fixed in the limiting slot 202 to complete the assembly of the projector.

[0046] In summary, by slidingly engaging the arc-shaped notch 401 with the locking shaft column 101, the projector housing 1 can be pushed to drive the locking shaft column 101 to reciprocate within the arc-shaped notch 401. This allows the projector housing 1 to freely rotate at a certain angle relative to the upper end of the support rod 201, making the projector suitable for different people and different scenarios, increasing the convenience of using the projector and improving the user experience.

[0047] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0048] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A projector, characterized in that, include: Projector housing, with locking shaft posts respectively provided on both sides of the projector housing; A base bracket, wherein two support rods are symmetrically arranged at both ends of the base bracket, and the upper ends of the two support rods are rotatably connected to the two sides of the projector housing, respectively; A connecting hole is provided at the upper end of the support rod. An annular limiting ring is provided on the inner side of the connecting hole, and an arc-shaped notch is provided on the inner edge of the annular limiting ring. The arc-shaped notch slides with the locking shaft column.

2. A projector according to claim 1, characterized in that, The annular limiting ring and the inner circumferential side of the connecting hole combine to form a planar groove. A rotating shaft is provided in the planar groove. The rotating shaft includes an integrally formed limiting part and a snap-fit ​​part. The limiting part is rotatably connected to the planar groove, and the snap-fit ​​part is connected to the side of the projector housing.

3. A projector according to claim 2, characterized in that, Several screw posts are respectively provided on both sides of the projector housing, and the outer peripheral side of the screw posts is slidably connected to the inner peripheral side of the annular limiting ring.

4. A projector according to claim 3, characterized in that, The end face of the screw post and the end face of the locking shaft post are respectively provided with first screw holes, and the outer side of the rotating shaft is provided with several first through holes. One end of the first countersunk screw passes through the first through hole and connects to the first screw hole.

5. A projector according to claim 2, characterized in that, A buffer washer is provided in the planar groove, the inner side of the buffer washer is in contact with the bottom surface of the planar groove, and the outer side of the buffer washer is in contact with the inner side of the limiting part.

6. A projector according to claim 2, characterized in that, The side of the projector housing is provided with a snap-fit ​​groove, and the snap-fit ​​part snaps into the snap-fit ​​groove.

7. A projector according to claim 1, characterized in that, A limiting groove is provided at the location of the connecting hole, and the limiting groove engages with the connecting sealing cover plate.

8. A projector according to claim 7, characterized in that, The outer side of the support rod is provided with several second screw holes, and the outer side of the sealing cover is provided with several second through holes. One end of the second countersunk screw passes through the second through hole and connects to the second screw hole.

9. A projector according to claim 8, characterized in that, A countersunk groove is provided at the second through hole location to accommodate the second screw.

10. A projector according to claim 1, characterized in that, The bottom surface of the base bracket is provided with an anti-slip pad.

Images