Projection equipment

Abstract

The utility model discloses a projection device, comprising a projector body and a bracket assembly, wherein the projector body is rotatably connected to the bracket assembly, and the bracket assembly is provided with a key module on a side away from the projector body, and the key module is located on a rotation axis of the projector body relative to the bracket assembly. The projection device proposed by the utility model arranges the key module on the bracket assembly to minimize the influence of the force generated on the projector body when pressing the key.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a projection equipment. Background Art

[0002] With the increasing demand for large-screen movie viewing in the consumer electronics market, and the fact that projectors are easy to carry and can be easily moved, projectors have gradually become the first choice for users to watch movies. When using a projector, the projection height of the picture generally needs to be adjusted to avoid obstacles in front and project the picture onto a flat area in front. In order to facilitate users to adjust the projection height of the picture, the projector is generally set on a rotating bracket.

[0003] However, for a projector with a rotating bracket, the buttons are generally located on the projector body. When a user presses the buttons on the projector body, or the projector is rotated relative to the rotating bracket, the pre-adjusted projection angle is changed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a projection device, in which a button module is arranged on a bracket assembly to minimize the influence of the force exerted on the projector body when the button is pressed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a projection device, comprising a projector body and a bracket assembly, wherein the projector body is rotatably connected to the bracket assembly, and the bracket assembly is provided with a key module on a side away from the projector body, and the key module is located on a rotation axis of the projector body rotating relative to the bracket assembly.

[0007] Preferably, the projection device also includes a rotating disk, the button module is fixedly connected to the rotating disk, a first mounting hole is opened on the bracket assembly, the rotating disk is fixedly connected to the projector body through the first mounting hole, and a part of the bracket assembly is abutted between the projector body and the rotating disk to install the projector body on the bracket assembly.

[0008] Preferably, the first mounting hole is matched with the rotating disk, and a hole wall of the first mounting hole is provided with a step structure, and the rotating disk is mounted on the step surface of the hole wall of the first mounting hole.

[0009] Preferably, the projection device further comprises an annular gasket, wherein the annular gasket abuts between the step surface of the hole wall of the first mounting hole and the side of the rotating disk close to the projector body; or, the annular gasket abuts between the bracket assembly and the projector body.

[0010] Preferably, the button module includes a PCB board, a limit block is provided on the surface of the rotating disk on the side facing away from the projector body, a limit groove is provided on the PCB board, and the limit block is inserted into the limit groove so that the PCB board is limit-connected to the side of the rotating disk facing away from the projector body.

[0011] Preferably, the projection device further comprises a first fastener and a second fastener, a first assembly hole and a fourth assembly hole are provided on the rotating disk, a second assembly hole is provided on the projector body, and a third assembly hole is provided on the PCB board, the first fastener passes through the first assembly hole and extends into and is fixed in the second assembly hole to fix the rotating disk to the projector body, and the second fastener passes through the third assembly hole and extends into and is fixed in the fourth assembly hole to fix the PCB board to the rotating disk.

[0012] Preferably, the projection device also includes a first fastener, a first assembly hole is opened on the rotating disk, a second assembly hole is opened on the projector body, and a third assembly hole is opened on the PCB board. The first fastener passes through the third assembly hole and the first assembly hole and extends into and is fixed in the second assembly hole to fix the PCB board and the rotating disk to the projector body respectively.

[0013] Preferably, the button module includes a PCB board, a button, a connector and a lead, the PCB board is fixedly connected to the side of the rotating disk away from the projector body, the button is arranged on the side of the PCB board away from the projector body and is electrically connected to the PCB board, the connector is arranged on the side of the PCB board close to the projector body and is electrically connected to the PCB board, a second mounting hole is provided on the rotating disk, a first wiring hole is provided on the projector body, the connector extends into the second mounting hole, and the lead passes through the first wiring hole and enters the interior of the shell of the projector body.

[0014] Preferably, the projection device also includes a hinge cover and a pressing plate, the hinge cover is provided with a first through hole, the pressing plate is elastically mounted on a side of the hinge cover facing the projector body and correspondingly arranged on a side of the button facing away from the projector body, and at least a portion of the pressing plate is exposed through the first through hole.

[0015] Preferably, the projection device also includes a light guide, the button module also includes a lamp bead, the lamp bead is electrically connected to the side of the PCB board facing away from the projector body, a light exit hole is opened on the pressing plate, and the light guide is fixedly installed on the side of the pressing plate facing the projector and is located on the side of the lamp bead facing away from the projector body, so as to reveal the light emitted by the lamp bead through the light exit hole.

[0016] Preferably, the projection device also includes a third fastener, a fifth assembly hole is opened on the shaft cover, a sixth assembly hole is opened on the rotating disk, the third fastener passes through the fifth assembly hole and extends into and is fixed in the sixth assembly hole to fix the shaft cover to the rotating disk.

[0017] Preferably, the projection device also includes a fourth fastener, a seventh assembly hole is opened on the shaft cover, an eighth assembly hole is opened on the bracket assembly, and the fourth fastener passes through the seventh assembly hole and extends into and is fixed in the eighth assembly hole to fix the shaft cover to the bracket assembly.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the projection device proposed by the utility model, wherein the key module is arranged on the side of the bracket assembly away from the projector body and located on the rotation axis, can minimize the impact of the force exerted on the projector body when the key is pressed. Moreover, the key module can be easily disassembled and replaced without disassembling the projector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the projection device disclosed in the preferred embodiment of the utility model;

[0020] Figure 2 yes Figure 1 Schematic diagram of the exploded structure of the projection equipment;

[0021] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0022] Figure 4 yes Figure 1 A schematic diagram of the structure of the projection device when the rotating disk is fixedly connected to the projector body;

[0023] Figure 5 yes Figure 1 Schematic diagram of the structure of the projection device when the PCB board is fixedly connected to the rotating disk.

[0024] Description of reference numerals:

[0025] 100. Projection equipment;

[0026] 10. Projector body; 11. Second assembly hole; 12. First wiring hole;

[0027] 20. Bracket assembly; 21. Bracket arm; 211. First mounting hole; 22. Base;

[0028] 30. button module; 31. PCB board; 311. limit slot; 312. third assembly hole; 32. button; 33. connector; 34. lamp bead;

[0029] 40. rotating disc; 41. limiting block; 42. first assembly hole; 43. fourth assembly hole; 44. sixth assembly hole; 45. second mounting hole;

[0030] 50. Ring gasket;

[0031] 61. first fastener; 62. second fastener; 63. third fastener;

[0032] 70. Rotating shaft cover plate; 71. First through hole; 72. Fifth assembly hole;

[0033] 80. Pressing plate; 81. Elastic arm; 82. Light exit hole;

[0034] 90. Light guide. DETAILED DESCRIPTION

[0035] The following is a detailed description of the implementation of the utility model. It should be emphasized that the following description is only exemplary and is not intended to limit the scope and application of the utility model.

[0036] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for both fixing and circuit / signal communication.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] like Figures 1 to 5 As shown, a preferred embodiment of the utility model discloses a projection device 100, including a projector body 10 and a bracket assembly 20, the projector body 10 is rotatably connected to the bracket assembly 20, and the bracket assembly 20 is provided with a button module 30 on the side away from the projector body 10, and the button module 30 is located on the rotation axis of the projector body 10 relative to the bracket assembly 20.

[0040] In this embodiment, the projector body 10 is provided with a main control board, an optical machine, a projection lens, a radiator, an audio system, etc. The bracket assembly 20 includes a bracket arm 21 and a base 22, the bracket arm 21 is fixedly connected to the base 22, the projector body 10 is rotatably connected to the bracket arm 21, and the button module 30 is arranged on a side of the bracket arm 21 away from the projector body 10.

[0041] The projection device 100 also includes a rotating disk 40, the button module 30 is fixedly connected to the rotating disk 40, a first mounting hole 211 is opened on the bracket arm 21, the rotating disk 40 is fixedly connected to the projector body 10 through the first mounting hole 211, and a portion of the bracket arm 21 abuts between the projector body 10 and the rotating disk 40 to install the projector body 10 on the bracket arm 21.

[0042] The first mounting hole 211 is matched with the rotating disk 40 , and a hole wall of the first mounting hole 211 is provided with a step structure, and the rotating disk 40 is mounted on the step surface of the hole wall of the first mounting hole 211 .

[0043] Further, the projection device 100 also includes an annular gasket 50, which abuts between the step surface of the hole wall of the first mounting hole 211 and the side of the rotating disk 40 close to the projector body 10; that is, the periphery of the rotating disk 40 presses the annular gasket 50 against the step surface of the hole wall of the first mounting hole 211 along the rotation axis direction. The annular gasket 50 is clamped by the step structure in conjunction with the rotating disk 40 to limit the annular gasket 50 from falling off. By providing the annular gasket 50, a rotation damping can be formed between the rotating disk 40 (locked on the projector body 10) and the bracket arm 21, that is, a damped rotation can be achieved between the projector body 10 and the bracket arm 21, and hovering at any pitch angle can be achieved. In other embodiments, the annular gasket 50 can also be directly abutted between the bracket arm 21 and the projector body 10 to achieve a damped rotation between the projector body 10 and the bracket arm 21.

[0044] The button module 30 includes a PCB board 31, and a limit block 41 is provided on the surface of the side of the rotating disk 40 away from the projector body 10. A limit groove 311 is provided on the PCB board 31. The limit block 41 is inserted into the limit groove 311 to achieve pre-positioning, so that the PCB board 31 is limitedly connected to the side of the rotating disk 40 away from the projector body 10.

[0045] The projection device 100 further includes a first fastener 61 and a second fastener 62. The rotating disk 40 is provided with a first assembly hole 42 and a fourth assembly hole 43. The projector body 10 is provided with a second assembly hole 11. The PCB board 31 is provided with a third assembly hole 312. The first fastener 61 passes through the first assembly hole 42 and extends into and is fixed in the second assembly hole 11, so as to fix the rotating disk 40 to the projector body 10. The second fastener 62 passes through the third assembly hole 312 and extends into and is fixed in the fourth assembly hole 43, so as to fix the PCB board 31 to the rotating disk 40. In a specific example, the first fastener 61 and the second fastener 62 are screws, respectively. The first assembly hole 42 and the third assembly hole 312 are through holes, respectively. The second assembly hole 11 and the fourth assembly hole 43 are threaded holes, respectively.

[0046] The key module 30 further includes a key 32, a connector 33 and a lead (not shown in the figure), the key 32 is arranged on the side of the PCB board 31 away from the projector body 10 and is electrically connected to the PCB board 31, the connector 33 is arranged on the side of the PCB board 31 close to the projector body 10 and is electrically connected to the PCB board 31, the rotating disk 40 is provided with a second mounting hole 45, the projector body 10 is provided with a first wiring hole 12, the connector 33 extends into the second mounting hole 45, and the lead passes through the first wiring hole 12 and then enters the shell of the projector body 10 to be electrically connected to the main control board. The key 32 can be, for example, a power button.

[0047] The projection device 100 further includes a shaft cover plate 70 and a pressing plate 80. A first through hole 71 is provided on the shaft cover plate 70. The pressing plate 80 is elastically mounted on a side of the shaft cover plate 70 facing the projector body 10 and correspondingly arranged on a side of the button 32 facing away from the projector body 10. At least a portion of the pressing plate 80 is exposed through the first through hole 71. The pressing plate 80 can be pressed and reset relative to the first through hole 71. Specifically, a plurality of elastic arms 81 are extended and arranged on the outer side wall of the pressing plate 80 in the circumferential direction. The ends of the plurality of elastic arms 81 are fixed to the shaft cover plate 70 by gluing / welding. The side of the pressing plate 80 facing the projector body 10 is directly opposite to the button 32. The elastic arms 81 can provide a certain elastic displacement space and a resetting elastic force for the pressing plate 80.

[0048] The projection device 100 further includes a light guide 90, and the key module 30 further includes a lamp bead 34, which is electrically connected to the side of the PCB board 31 away from the projector body 10, and a light exit hole 82 is provided on the pressing plate 80, and the light guide 90 is fixedly installed on the side of the pressing plate 80 facing the projector body 10 and located on the side of the lamp bead 34 away from the projector body 10, so as to expose the light emitted by the lamp bead 34 through the light exit hole 82. The lamp bead 34 can be, for example, an LED lamp, and the light of the LED lamp can be guided to the light exit hole 82 on the pressing plate 80 through the light guide 90, and emitted from the light exit hole 82; and the brightness, flickering frequency and / or color of the LED lamp can be controlled by the main control board in the projector body 10.

[0049] The projection device 100 also includes a third fastener 63, a fifth assembly hole 72 is provided on the shaft cover 70, and a sixth assembly hole 44 is provided on the rotating disk 40. The third fastener 63 passes through the fifth assembly hole 72 and extends into and is fixed in the sixth assembly hole 44 to fix the shaft cover 70 to the rotating disk 40. In a specific example, the third fastener 63 is a screw, the fifth assembly hole 72 is a through hole, and the sixth assembly hole 44 is a threaded hole.

[0050] In the above embodiment, the rotating disk 40 is firstly fixedly connected to the projector body 10 by the first fastener 61. After the first fastener 61 is assembled, the structure is as follows: Figure 4 Then the PCB board 31 is fixedly connected to the rotating disk 40 by the second fastener 62, and the structure after the second fastener 62 is assembled is as shown Figure 5 Finally, the shaft cover 70 is fixedly connected to the rotating disk 40 by the third fastener 63, and the structure of the third fastener 63 is assembled as shown Figure 1As shown. The rotating disk 40, the projector body 10, the PCB board 31, and the shaft cover 70 remain relatively still during use. In other embodiments, the configuration of the first fastener 61, the second fastener 62, and the third fastener 63 can also be adjusted, which can be specifically divided into the following ways:

[0051] (1) Only the first assembly hole 42 may be provided on the rotating disk 40, and the second assembly hole 11, the third assembly hole 312, and the fifth assembly hole 72 may be respectively arranged coaxially with the first assembly hole 42. In this case, the first fastener 61 only needs to be sequentially passed through the fifth assembly hole 72, the third assembly hole 312, and the first assembly hole 42 and extended into and fixed in the second assembly hole 11, so as to respectively fix the shaft cover 70, the PCB board 31, and the rotating disk 40 to the projector body 10. In this method, the assembly of the various parts (including the rotating disk 40, the projector body 10, the PCB board 31, and the shaft cover 70) can be realized by only one set of fasteners.

[0052] (2) The PCB board 31 can be fixedly connected to the rotating disk 40 by the second fastener 62. Only the first assembly hole 42 and the fourth assembly hole 43 are provided on the rotating disk 40. Then the second assembly hole 11 and the fifth assembly hole 72 are respectively coaxially arranged with the fourth assembly hole 43. At this time, the first fastener 61 only needs to be sequentially passed through the fifth assembly hole 72 and the fourth assembly hole 43 and extended into and fixed in the second assembly hole 11 to respectively fix the shaft cover 70 and the rotating disk 40 to the projector body 10. In this method, the assembly of the PCB board 31 and the rotating disk 40 is realized by the second fastener 62, and the assembly of the rotating disk 40, the projector body 10, and the shaft cover 70 is realized by the first fastener 61.

[0053] (3) The shaft cover 70 can be fixedly connected to the rotating disk 40 by the third fastener 63. Only the first assembly hole 42 and the sixth assembly hole 44 are provided on the rotating disk 40. Then the second assembly hole 11 and the third assembly hole 312 are respectively arranged coaxially with the first assembly hole 42. At this time, the first fastener 61 only needs to be sequentially passed through the third assembly hole 312 and the first assembly hole 42 and extended into and fixed in the second assembly hole 11 to respectively fix the PCB board 31 and the rotating disk 40 to the projector body 10. In this mode, the assembly of the shaft cover 70 and the rotating disk 40 is realized by the third fastener 63, and the assembly of the rotating disk 40, the projector body 10, and the PCB board 31 is realized by the first fastener 61.

[0054] (4) The rotating disk 40 can be fixedly connected to the projector body 10 by the first fastener 61. There are only the first assembly hole 42 and the fourth assembly hole 43 on the rotating disk 40. The third assembly hole 312 and the fifth assembly hole 72 are respectively arranged coaxially with the first assembly hole 42. At this time, the second fastener 62 only needs to pass through the fifth assembly hole 72 and the third assembly hole 312 in sequence and extend into and be fixed in the fourth assembly hole 43 to respectively fix the shaft cover 70 and the PCB board 31 to the rotating disk 40. In this method, the assembly of the projector body 10 and the rotating disk 40 is realized by the first fastener 61, and the assembly between the rotating disk 40, the shaft cover 70 and the PCB board 31 is realized by the first fastener 61.

[0055] In the above-mentioned various fixing methods, some screws and threaded holes on the bracket arm can be omitted.

[0056] In the above preferred embodiment, the shaft cover 70 rotates synchronously with the rotating disk 40, that is, it rotates synchronously with the projector body 10. In another preferred embodiment, the shaft cover 70 may not be fixedly connected to the rotating disk 40 by the third fastener 63; instead, a fourth fastener is added to the projection device, and a seventh assembly hole is opened on the shaft cover 70, and an eighth assembly hole is opened on the bracket arm 21. The fourth fastener passes through the seventh assembly hole and extends into and is fixed to the eighth assembly hole to fix the shaft cover 70 to the bracket arm 21. At this time, the shaft cover 70 does not rotate with the rotating disk 40 and the projector body 10, which can prevent the user from accidentally rotating the shaft cover 70 when picking up the projection device 100 and causing the projector body 10 to rotate accidentally.

[0057] The projection device provided by the preferred embodiment of the utility model has the key module 30 arranged on the rotation axis, which minimizes the influence of the force exerted on the projector body when the key is pressed. Moreover, the PCB board 31 can be exposed by removing the shaft cover 70, and the PCB board 31 can be further removed for inspection and replacement, so that the key module can be easily disassembled and replaced without disassembling the projector body.

[0058] The background section of the utility model may contain background information about the problem or environment of the utility model, rather than describing the prior art by others. Therefore, the content contained in the background technology section is not an admission of the applicant to the prior art.

[0059] The above content is a further detailed description of the utility model in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, it can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be regarded as belonging to the protection scope of the utility model. In the description of this specification, the description of the reference terms "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, in the absence of mutual contradiction, the technical personnel in this field can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope defined by the appended claims.

Claims

1. A projection device, characterized in that: The projector body comprises a projector body and a bracket assembly, wherein the projector body is rotatably connected to the bracket assembly, and a key module is provided on the side of the bracket assembly away from the projector body, and the key module is located on the rotation axis of the projector body relative to the bracket assembly.

2. The projection device according to claim 1, characterized in that: It also includes a rotating disk, the button module is fixedly connected to the rotating disk, the bracket assembly is provided with a first mounting hole, the rotating disk is fixedly connected to the projector body through the first mounting hole, and a portion of the bracket assembly abuts between the projector body and the rotating disk to mount the projector body on the bracket assembly.

3. The projection device according to claim 2, characterized in that: The first mounting hole is matched with the rotating disk, and a hole wall of the first mounting hole is provided with a step structure, and the rotating disk is mounted on the step surface of the hole wall of the first mounting hole.

4. The projection device according to claim 3, characterized in that: It also includes an annular gasket, wherein the annular gasket abuts between the step surface of the hole wall of the first mounting hole and the side of the rotating disk close to the projector body; or the annular gasket abuts between the bracket assembly and the projector body.

5. The projection device according to claim 2, characterized in that: The button module includes a PCB board, a limit block is provided on the surface of the side of the rotating disk away from the projector body, and a limit groove is provided on the PCB board. The limit block is inserted into the limit groove so that the PCB board is limitedly connected to the side of the rotating disk away from the projector body.

6. The projection device according to claim 5, characterized in that: The device further comprises a first fastener and a second fastener, wherein the rotating disk is provided with a first assembly hole and a fourth assembly hole, the projector body is provided with a second assembly hole, and the PCB board is provided with a third assembly hole, the first fastener passes through the first assembly hole and extends into and is fixed in the second assembly hole, so as to fix the rotating disk to the projector body, and the second fastener passes through the third assembly hole and extends into and is fixed in the fourth assembly hole, so as to fix the PCB board to the rotating disk; or, It also includes a first fastener, a first assembly hole is provided on the rotating disk, a second assembly hole is provided on the projector body, and a third assembly hole is provided on the PCB board. The first fastener passes through the third assembly hole and the first assembly hole and extends into and is fixed in the second assembly hole, so as to fix the PCB board and the rotating disk to the projector body respectively.

7. The projection device according to claim 2, characterized in that: The button module includes a PCB board, a button, a connector and a lead. The PCB board is fixedly connected to the side of the rotating disk away from the projector body. The button is arranged on the side of the PCB board away from the projector body and is electrically connected to the PCB board. The connector is arranged on the side of the PCB board close to the projector body and is electrically connected to the PCB board. A second mounting hole is provided on the rotating disk, and a first wiring hole is provided on the projector body. The connector extends into the second mounting hole, and the lead passes through the first wiring hole and enters the interior of the shell of the projector body.

8. The projection device according to claim 7, characterized in that: It also includes a shaft cover and a pressing plate, wherein a first through hole is provided on the shaft cover, and the pressing plate is elastically mounted on a side of the shaft cover facing the projector body and correspondingly arranged on a side of the button facing away from the projector body, and at least a portion of the pressing plate is exposed through the first through hole.

9. The projection device according to claim 8, characterized in that: It also includes a light guide, and the button module also includes a lamp bead, which is electrically connected to the side of the PCB board facing away from the projector body. The pressing plate is provided with a light outlet hole, and the light guide is fixedly installed on the side of the pressing plate facing the projector and is located on the side of the lamp bead facing away from the projector body, so as to expose the light emitted by the lamp bead through the light outlet hole.

10. The projection device according to claim 8, characterized in that: The invention also includes a third fastener, wherein a fifth assembly hole is formed on the rotating shaft cover plate, a sixth assembly hole is formed on the rotating disc, and the third fastener passes through the fifth assembly hole and extends into and is fixed in the sixth assembly hole to fix the rotating shaft cover plate to the rotating disc; or, It also includes a fourth fastener, a seventh assembly hole is formed on the shaft cover, an eighth assembly hole is formed on the bracket assembly, and the fourth fastener passes through the seventh assembly hole and extends into and is fixed in the eighth assembly hole to fix the shaft cover to the bracket assembly.

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