WO2018032858A1 - 一种投影装置 - Google Patents

一种投影装置 Download PDF

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Publication number
WO2018032858A1
WO2018032858A1 PCT/CN2017/086177 CN2017086177W WO2018032858A1 WO 2018032858 A1 WO2018032858 A1 WO 2018032858A1 CN 2017086177 W CN2017086177 W CN 2017086177W WO 2018032858 A1 WO2018032858 A1 WO 2018032858A1
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WO
WIPO (PCT)
Prior art keywords
connecting hole
outer casing
casing
projection apparatus
protective casing
Prior art date
Application number
PCT/CN2017/086177
Other languages
English (en)
French (fr)
Inventor
杜伦春
黄旻
李屹
Original Assignee
深圳市光峰光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市光峰光电技术有限公司 filed Critical 深圳市光峰光电技术有限公司
Publication of WO2018032858A1 publication Critical patent/WO2018032858A1/zh

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Classifications

    • 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

Definitions

  • the utility model relates to the technical field of optical devices, and more particularly to a projection device.
  • a projector also known as a projector, is a device that can project images or video onto a screen. It can be connected to a computer, VCD, DVD, BD, game console, DV, etc. through different interfaces to play the corresponding video signals. Projectors are widely used in homes, offices, schools and entertainment venues.
  • the focus adjustment handle is often provided.
  • a portion of the focus handle protrudes out of the housing of the projection device to facilitate user manipulation of the focus handle.
  • a part of the focus adjustment handle is located in the open space outside the projection device, it is easily accidentally touched by an external force (such as a user), causing a change in the focus state and affecting the projection image quality.
  • dust is easily accumulated at the convex portion of the handle, which is disadvantageous for the flexible operation of the handle.
  • the object of the present invention is to provide a projection device, which can effectively solve the problem that the focus adjustment handle is easily touched and easily accumulated.
  • the present invention provides the following technical solutions:
  • a projection apparatus comprising an outer casing and a focusing member, the focusing member protruding from at least a portion of the outer casing; and an integral protective casing for covering the outside of the focusing member, the outer casing A detachable fixed connection with the integral protective casing.
  • the outer casing includes a first magnetic adsorption portion
  • the integral protective casing includes a second magnetic adsorption portion for sucking with the first magnetic adsorption portion.
  • the integral protective casing includes a covering portion for covering the outside of the focusing member and an inner concave portion for fitting with a plane of the lens hole on the outer casing.
  • an end portion of the inner concave portion has a circular arc shape that matches an outer diameter of the lens hole.
  • the integral protective casing is provided with an outwardly convex or inwardly concave removing action portion.
  • the edge of the integrated protective shell is provided with a rib, and the rib is provided with a groove corresponding to the rib, and the rib is engaged with the groove.
  • the projection device further includes a retaining member, one end of the retaining member being connected to the outer casing, and the other end being connected to the integral protective casing.
  • the outer casing is provided with a first connecting hole
  • the inner wall of the integrated protective shell is provided with a boss corresponding to the first connecting hole
  • the boss is provided with a second a connecting hole
  • one end of the retaining member is engaged with the first connecting hole
  • the other end is engaged with the second connecting hole.
  • the retaining member includes a connecting rod and an elastic vertebral body portion disposed at both ends of the connecting rod, the width of the elastic vertebral portion gradually increasing in a direction away from the free end, and the The maximum width of the elastic vertebral body portion is larger than the widths of the first connecting hole and the second connecting hole, and the width of the connecting rod is smaller than the width of the first connecting hole and the second connecting hole.
  • the free end of the elastic vertebral body portion is provided with a guiding column, and the width of the guiding column is not greater than the width of the free end of the elastic vertebral body.
  • the projection device provided by the utility model comprises an outer casing body, a focusing component and an integral protective casing.
  • the focusing component protrudes from at least a portion of the outer casing, and the integral protective casing and the outer casing are detachably fixedly connected to be conveniently disposed outside or removed from the focusing component.
  • the projection device provided by the present invention has an integral protective casing that is affixed to the first magnetic adsorption portion of the outer casing through the second magnetic adsorption portion. That is to say, the magnetic connecting structure is adopted, on the one hand, the structure is simple, and the integrated protective shell is disassembled and assembled. On the other hand, the magnetic adsorption force is durable and reliable, and the mechanical connecting structure is prevented from being restricted by the material fatigue limit, thereby ensuring the connection reliability and extending the integration. The service life of the protective case.
  • the retaining member is further included, and after the integral protective cover is detached from the outer casing, the inadvertent loss is avoided due to the restriction of the retaining member.
  • the setting of the anti-dropping component also facilitates the installation of the next integrated protective casing, which helps the user to locate the relative outer casing.
  • FIG. 1 is a schematic structural view showing an installation state of an integrated protective shell in a specific embodiment of a projection apparatus provided by the present invention
  • FIG. 2 is a schematic structural view of the integrated protective case of FIG. 1 in a disassembled state
  • Figure 3 is a schematic structural view of the integrated protective case of Figure 1;
  • Figure 4 is a front view of the structure of Figure 3;
  • Figure 5 is a top plan view of Figure 3;
  • Figure 6 is a schematic view showing the structure of the retaining member.
  • the covering portion 23, the boss 24, the second connecting hole 25, the action portion 26, the connecting rod 41, the elastic vertebral portion 42, and the guide post 43 are removed.
  • the embodiment of the present invention discloses a projection device to prevent the focus adjustment handle from being accidentally touched and prevented from accumulating dust.
  • FIG. 1 is a schematic structural view showing the installation state of the integrated protective shell 2 in a specific embodiment of the projection device provided by the present invention
  • FIG. 2 is a schematic structural view showing the assembled state of the integrated protective shell 2 of FIG. 1
  • 3 is a schematic structural view of the integrated protective casing 2 in FIG. 1
  • FIG. 4 is a schematic view of the front view of FIG. 3
  • FIG. 5 is a schematic structural view of the top view of FIG.
  • the projection device provided by the present invention comprises an outer casing 1, a focusing member 3 and an integral protective casing 2.
  • the outer casing 1 is the outer casing portion of the projection device, and its structural shape can be set according to different types or types of projection devices, etc., and is not specifically limited herein.
  • the focusing member 3 protrudes from at least a portion of the outer casing 1, thereby facilitating the user to adjust the focal length of the lens to perform focusing or focusing.
  • a focusing member mounting hole 13 is generally formed in the outer casing 1, and specifically may be a cylindrical hole, and the focusing member 3 is protruded from the hole to facilitate operation.
  • the specific focusing component 3 can be a focusing handle, such as a lever handle (as shown in FIG. 2 ), or a structure such as an adjusting ring or an adjusting disk, which is not specifically limited. Please refer to the prior art for the working principle and connection relationship of the focusing component 3, and details are not described herein again.
  • the integrated protective casing 2 serves to effectively protect the regulating member. It is detachably fixedly coupled to the outer casing 1 for convenient cover or removal of the focusing member 3. It should be noted that the cover here is disposed outside the adjusting member, and the integral protective cover 2 can cover the focusing member 3, so that the outer cover of the integrated protective case 2 cannot directly contact the adjusting member.
  • the size of the coverage of the specific integrated protective casing 2 can be set according to actual conditions, and is not particularly limited herein. It only needs to be able to cover the focusing member 3, and preferably the focusing member mounting hole 13 can be covered.
  • an integral protective cover 2 may be disposed on the end surface of the outer casing 1 where the focusing member 3 is located, such as the front end surface of the projection device.
  • the integral protective casing 2 in an L shape, one side of the L shape covering the end surface where the focusing member 3 is located, and the other side covering the other end surface adjacent to the end surface.
  • the integrated protective shell 2 can be disposed on the lens side of the projection device, and a through hole can be formed in the integral protective shell 2 as needed, and can be sleeved outside the lens so as not to affect the projection.
  • a light-transmitting plate at the corresponding lens of the integrated protective casing 2.
  • the integrated protective shell 2 is arranged for easy installation and handling. When the projection device is adjusted, the integrated protective shell 2 is fixedly disposed outside the focusing member 3. When the focusing member 3 needs to be adjusted, the integrated protective shell 2 is provided by the outer casing. Remove the body 1 and remove it.
  • the integrated protective casing 2 is absorbingly connected to the first magnetic adsorption portion 11 of the outer casing 1 via the second magnetic adsorption portion 21 . That is, the outer casing 1 includes the first magnetic adsorption portion 11, and the integral protective casing 2 includes the second magnetic adsorption portion 21 for adsorbing with the first magnetic adsorption portion 11, so that the integral protective casing 2 is fixed to the outer casing by magnetic attraction during installation.
  • the magnetic connecting structure is simple in structure and convenient for disassembly and assembly of the integral protective shell 2, on the other hand, the magnetic adsorption force is durable and reliable, and the mechanical connecting structure is prevented from being restricted by the material fatigue limit, thereby ensuring the connection reliability and extending the integration.
  • the first magnetic adsorption portion 11 may be a permanent magnet fixed to the outer casing 1
  • the second magnetic adsorption portion 21 is a magnetic material member such as an iron piece or the like fixed to the integral protective casing 2.
  • the permanent magnet may be fixed to the outer surface of the outer casing 1, such as by injection molding, inserting or the like, to be embedded in the outer casing 1.
  • the second magnetic adsorption portion 21 may be fixed to the surface of the integral protective casing 2 facing the outer casing 1.
  • the second magnetic adsorption portion 21 may be embedded in the integral protective casing 2 by injection molding, inserting or the like.
  • the integral protective casing 2 is fixedly coupled to the outer casing 1 by the adsorption of the first magnetic adsorption portion 11 and the second magnetic adsorption portion 21.
  • the integral protective casing 2 may be provided as a magnetic material casing as needed, and the portion of the integrated protective casing 2 corresponding to the first magnetic adsorption portion 11 is the second magnetic adsorption portion 21.
  • the second magnetic adsorption portion 21 may be a permanent magnet as needed, and the corresponding first magnetic adsorption portion 11 is made of a magnetic material.
  • both the first magnetic adsorption portion 11 and the second magnetic adsorption portion 21 can be provided with permanent magnets, and the opposite ends of the magnetic poles are disposed opposite each other, so that the integrated protective casing 2 and the outer casing 1 can be reliably sucked.
  • the positions of the first magnetic adsorption portion 11 and the second magnetic adsorption portion 21 may be set as needed, and are not specifically limited herein.
  • the number of the second magnetic adsorption portions 21 can be set as needed.
  • the second magnetic adsorption portion 21 can include four, two or two distributed at one end of the integrated protective casing 2, or four second magnetic adsorptions.
  • the portions 21 are respectively disposed at the four corners of the integrated protective casing 2.
  • the integrated protective casing 2 may include a cover portion 23 for covering the outside of the focusing member 3 and for the outer casing 1
  • the inner concave portion 22 to which the lens hole is located is fitted.
  • a lens hole is opened in the outer casing 1 of the projection device, and the lens protrudes from the lens hole, and the plane of the lens hole is lower than the end surface of the outer casing 1. Therefore, the inner concave portion 22 of the integrated protective casing 2 is fitted to the plane of the lens hole, and the covering portion 23 is disposed outside the focusing member 3. That is, the inner recess 22 is recessed inward with respect to the cover portion 23.
  • the positioning of the integral protective casing 2 is facilitated, and the installation is facilitated.
  • the concave portion 22 is fitted to the plane of the lens hole to prevent dust from being separated from the outer casing 1 of the integral protective casing 2 and the lens hole. Enter, the dustproof effect is good.
  • the end of the inner recess 22 has a circular arc shape that matches the outer diameter of the lens hole. That is, in the mounted state, the end portion of the integrated protective shell 2 is matched with the outer edge of the lens hole, and specifically, a predetermined interval may be set with the outer edge of the lens hole, preferably aligned with the outer edge of the lens hole, thereby not affecting the lens and It is not easy to accumulate dust, and it is more neat and beautiful.
  • the outer casing 1 may be provided with a concave area, the focusing member 3 is disposed in the concave area, and the height of the top end is smaller than the outer end surface of the outer casing 1, That is, it is located in the outer end surface, and thus the integral protective shell 2 can be flush with the outer surface of the outer casing 1.
  • the structure of the integrated protective casing 2 can be configured to be symmetrical with the outer casing 1 on the other side of the lens, so that when the integrated protective casing 2 is mounted on the outer casing 1, the overall appearance is beautiful. The structure is simple and compact.
  • the second magnetic adsorption portion 21 is provided on the inner concave portion 22. That is, the integral protective casing 2 is fixed by connecting the inner recess 22 to the outer casing 1, and the connection is more reliable.
  • the number of the second magnetic adsorption portions 21 of the inner concave portion 22 may be set as needed.
  • the second magnetic adsorption portion 21 includes four, the two second magnetic adsorption portions 21 may be disposed at the inner concave portion 22, and the other two The two magnetic adsorption portions 21 are located at the other end opposite to the inner concave portion 22.
  • the integral protective casing 2 may be provided with an inwardly concave or outwardly convex removal action portion 26.
  • an inwardly concave removal action portion 26 may be provided on the side of the unitary protective casing 2. As shown in FIG. 3, it is disposed on the right side edge of the integrated protective casing 2.
  • the shape of the removal action portion 26 can be set as needed, such as a stepped concave shape, which is convenient for the operator to smash.
  • the removal action portion 26 may be provided as a convex structure as needed.
  • the removal of the action portion 26 may be provided with a texture to increase the friction to facilitate removal of the integral protective casing 2.
  • the integral protective casing 2 may be sealingly connected to the outer casing 1.
  • the edge of the integrated protective shell 2 is provided with a rib
  • the corresponding rib on the outer casing 1 is provided with a groove
  • the rib is engaged with the groove.
  • the ribs are stuck in the grooves during installation to provide good waterproof and dustproof performance.
  • the specific ribs may be made of an elastic material such as rubber.
  • the retaining member 4 may be further provided, and one end of the retaining member 4 is connected to the outer casing 1, and the other end is connected to the integral protective casing 2.
  • the structure of the retaining member 4 is not particularly limited, and the integral protective casing 2 and the outer casing 1 may be either a non-detachable fixed connection or a detachable fixed connection. After the integral protective casing 2 is detached from the outer casing 1, it is prevented from being inadvertently lost due to the restriction of the retaining member 4. At the same time, the arrangement of the retaining member 4 also facilitates the installation of the next integrated protective casing 2, facilitating the user's positioning of the outer casing 1 relative thereto.
  • the outer casing 1 is provided with a first connecting hole 12, and the inner wall of the integral protective shell 2 is provided with a boss 24 corresponding to the first connecting hole 12, and the second connecting hole 25 is opened on the boss 24, the retaining member One end of the 4 is engaged with the first connecting hole 12, and the other end is engaged with the second connecting hole 25.
  • the integral protective casing 2 may not be removed in the case where the retaining member 4 does not affect the installation of the integral protective casing 2.
  • the positioning of the integral protective casing 2 during installation is also facilitated by the arrangement of the first connecting hole 12 and the second connecting hole 25.
  • the corresponding relationship between the second connecting hole 25 and the first connecting hole 12 on the boss 24 includes the second connecting hole 25 and the first connecting hole 12 in the mounted state of the integrated protective shell 2, and the two Predetermined positional relationships, such as orientation, spacing, etc.
  • the boss 24 is generally a platform perpendicular to the end face of the integral protective casing 2 facing the outer casing.
  • the cross section of the boss 24 parallel to the end face of the integral protective casing 2 may be U-shaped.
  • the boss 24 may also include a platform perpendicular to the end face of the outer casing 2 facing the outer casing 1 and a connecting portion perpendicular to the platform, that is, the connecting portion is parallel to the end surface of the integral casing 2, as needed.
  • the retaining member 4 may include a connecting rod 41 and an elastic vertebral portion 42 disposed at both ends of the connecting rod 41.
  • the width of the elastic vertebral portion 42 gradually increases away from the free end, and the maximum width of the elastic vertebral portion
  • the width of the connecting rod 41 is larger than the width of the first connecting hole 12 and the second connecting hole 25, and is larger than the width of the first connecting hole 12 and the second connecting hole 25.
  • the free end here corresponds to the outer end of the retaining member 4, and thus the elastic vertebral portion 42 gradually increases in width from the outer end to the inner end.
  • the elastic vertebral body portion 42 and the connecting rod 41 are sized to enable the elastic vertebral body portion 42 to be respectively engaged in the first connecting hole 12 and the second connecting hole 25.
  • the elastic vertebral body portion 42 may specifically be a pyramid or a cone, and the shapes of the first connection hole 12 and the second connection hole 25 correspond to the shape of the elastic vertebral body portion 42.
  • the maximum width thereof is larger than the widths of the first connecting hole 12 and the second connecting hole 25, and the length thereof may generally be set larger than the lengths of the first connecting hole 12 and the second connecting hole 25.
  • the cone is used, and the maximum diameter of the cone is larger than the diameters of the first connecting hole 12 and the second connecting hole 25.
  • the diameter of the connecting rod 41 is smaller than the diameters of the first connecting hole 12 and the second connecting hole 25, and can be set as a connection as needed.
  • the diameter of the rod 41 connected to the elastic vertebral body portion 42 is smaller than the diameter of the first connecting hole 12 and the second connecting hole 25. Further, when mounting, the cone at one end of the connecting rod 41 is pressed and deformed and inserted and fixed in the second connecting hole 25, and similarly, the cone at the other end is inserted and fixed in the second connecting hole 25, due to the cone
  • the maximum outer diameter of the body is larger than the diameter of the connecting hole, and therefore, the retaining member 4 is kept connected to the outer casing 1 and the integral protective casing 2, respectively, so that the outer casing 1 and the integral protective casing 2 can be prevented from being completely separated.
  • the retaining member 4 When the retaining member 4 is detachably and detachably connected to the outer casing 1 and the integral protective casing 2, it may specifically pass other connecting structures such as a buckle or a cantilever engaging structure.
  • the free end of the elastic vertebral body portion 42 is provided with a guide post 43 having a width no greater than the width of the free end of the elastic vertebral body portion 42. That is, the guide post 43 is provided at the outer end of the retaining member 4.
  • the diameter of the guide post 43 is not greater than the diameter of the free end of the elastic vertebral body portion 42. Therefore, it is more convenient to insert the above-mentioned cone into the first connecting hole 12 and the second connecting hole 25 during assembly.
  • the guide post 43 can be disposed coaxially with the connecting rod 41.
  • the retaining member 4 may be a rigid member, preferably a flexible member such as a flexible cord or the like, or the retaining member 4 may be made of an elastic material such as silica gel, and has a large elasticity, thereby allowing the first housing to be opposed to the first When the two housings are separated by a large distance, a certain guiding can be provided for mounting the first housing and the second housing.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Prostheses (AREA)
  • Projection Apparatus (AREA)

Abstract

一种投影装置，包括外壳体（1）和调焦部件（3），调焦部件（3）凸出于至少部分外壳体（1）；还包括用于罩设在调焦部件（3）外的一体防护壳（2），外壳体（1）与一体防护壳（2）可拆卸的固定连接。应用投影装置时，通过将一体防护壳（2）固定于外壳体（1）并覆盖于调焦部件（3）外，能够避免对调焦部件（3）的意外触碰，如用户意外触碰，以保持调焦状态的稳定。同时，有效减少了调焦部件（3）积灰现象，避免积灰对调焦部件（3）灵活性的不利影响。同时能够防止外界水及灰尘通过调焦部件（3）与外壳体（1）之间的缝隙进入投影装置内，避免由此带来的安全隐患，进而保证投影装置的质量。

Description

一种投影装置 技术领域
本实用新型涉及光学设备技术领域，更具体地说，涉及一种投影装置。
 背景技术
投影仪，又称投影机，是一种可以将图像或视频投射到幕布上的设备，可以通过不同的接口同计算机、VCD、DVD、BD、游戏机、DV等相连接播放相应的视频信号。投影仪广泛应用于家庭、办公室、学校和娱乐场所等环境。
 技术问题
为了对投影装置进行调焦，现有技术中多通过设置调焦手柄。一般的，调焦手柄一部分凸出于投影装置的外壳外，以便于用户对调焦手柄的操作。但是，由于调焦手柄的一部分位于投影装置外部敞开空间中，容易受到外力（比如用户）的意外碰触，造成调焦状态的改变，影响投影画质。另外，在上述手柄的凸设部分处容易积存尘埃，不利于手柄的灵活操作。再者，为了手柄操作的自由度，手柄与其所布置于的壳体之间存有间隙，因而灰尘、水汽等容易经该间隙进入投影机内部，进而影响投影机的正常工作。
综上所述，如何有效地解决投影装置调焦手柄易被误触、且易积灰等问题，是目前本领域技术人员急需解决的问题。
 技术解决方案
有鉴于此，本实用新型的目的在于提供一种投影装置，该投影装置的结构设计可以有效地解决调焦手柄易被误触、且易积灰的问题。
为了达到上述目的，本实用新型提供如下技术方案：
一种投影装置，包括外壳体和调焦部件，所述调焦部件凸出于至少部分所述外壳体；还包括用于罩设在所述调焦部件外的一体防护壳，所述外壳体与所述一体防护壳可拆卸的固定连接。
优选地，上述投影装置中，所述外壳体包括第一磁性吸附部，所述一体防护壳包括用于与所述第一磁性吸附部吸合的第二磁性吸附部。
优选地，上述投影装置中，所述一体防护壳包括用于覆盖在所述调焦部件外的覆盖部和用于与所述外壳体上的镜头孔所在平面贴合的内凹部。
优选地，上述投影装置中，所述内凹部的端部呈与所述镜头孔的外径配合的圆弧形。
优选地，上述投影装置中，所述一体防护壳上设置有向外凸或者向内凹的取下作用部。
优选地，上述投影装置中，所述一体防护壳的边缘设置有筋条，所述外壳体上对应所述筋条开设有凹槽，所述筋条与所述凹槽卡接。
优选地，上述投影装置中，还包括防脱部件，所述防脱部件的一端与所述外壳体连接，另一端与所述一体防护壳连接。
优选地，上述投影装置中，所述外壳体上开设有第一连接孔，所述一体防护壳的内壁上对应所述第一连接孔处设置有凸台，所述凸台上开设有第二连接孔，所述防脱部件的一端与所述第一连接孔卡接，另一端与所述第二连接孔卡接。
优选地，上述投影装置中，所述防脱部件包括连接杆和设置于所述连接杆两端的弹性椎体部，所述弹性椎体部的宽度沿远离自由端的方向逐渐增大，且所述弹性椎体部的最大宽度大于所述第一连接孔和第二连接孔的宽度，所述连接杆的宽度小于所述第一连接孔和第二连接孔的宽度。
优选地，上述投影装置中，所述弹性椎体部的自由端设置有引导柱，所述引导柱的宽度不大于所述弹性椎体部自由端的宽度。
本实用新型提供的投影装置包括外壳体、调焦部件和一体防护壳。其中，调焦部件凸出于至少部分外壳体，一体防护壳与外壳体可拆卸的固定连接，以方便的罩设在调焦部件外或取下。
 有益效果
应用本实用新型提供的投影装置时，通过将一体防护壳固定于外壳体并覆盖于调焦部件外，能够避免对调焦部件的意外触碰，如用户意外触碰，以保持调焦状态的稳定。同时，有效减少了调焦部件积灰现象，避免积灰对调焦部件灵活性的不利影响。同时能够防止外界水及灰尘通过调焦部件与外壳体之间的缝隙进入投影装置内，避免由此带来的安全隐患，进而保证投影装置的质量。
在一种优选的实施方式中，本实用新型提供的投影装置其一体防护壳通过第二磁性吸附部与外壳体的第一磁性吸附部吸附连接。即采用磁性连接结构，一方面结构简单、便于一体防护壳拆装，另一方面磁性吸附的作用力持久可靠，避免了机械连接结构受材料疲劳极限的制约，保证了连接可靠性、延长了一体防护壳的使用寿命。
在另一种优选的实施方式中，还包括防脱部件，一体防护壳脱离外壳体后，由于防脱部件的制约，避免了其不慎遗失。同时防脱部件的设置，也为下一次一体防护壳的安装提供了便利，有助于用户对其相对外壳体的定位。
 附图说明
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本实用新型提供的投影装置一种具体实施方式中一体防护壳安装状态的结构示意图；
图2为图1的一体防护壳拆卸状态结构示意图；
图3为图1中一体防护壳的结构示意图；
图4为图3的主视结构示意图；
图5为图3的俯视结构示意图；
图6为防脱部件的结构示意图。
附图中标记如下：
外壳体1，一体防护壳2，调焦部件3，防脱部件4，第一磁性吸附部11，第一连接孔12，调焦部件安装孔13，第二磁性吸附部21，内凹部22，覆盖部23，凸台24，第二连接孔25，取下作用部26，连接杆41，弹性椎体部42，引导柱43。
 本发明的最佳实施方式
本实用新型实施例公开了一种投影装置，以避免调焦手柄被误触，防止其积灰。
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
请参阅图1-图6，图1为本实用新型提供的投影装置一种具体实施方式中一体防护壳2安装状态的结构示意图；图2为图1的一体防护壳2拆卸状态结构示意图；图3为图1中一体防护壳2的结构示意图；图4为图3的主视结构示意图；图5为图3的俯视结构示意图；图6为防脱部件的结构示意图。
在一种具体实施方式中，本实用新型提供的投影装置包括外壳体1、调焦部件3和一体防护壳2。
其中，外壳体1即投影装置的外壳部分，其结构形状可根据不同类型或型号的投影装置等进行设置，此处不作具体限定。调焦部件3凸出于至少部分外壳体1，进而便于用户调整镜头的焦距，进行对焦或调焦。外壳体1上一般开设调焦部件安装孔13，具体可以为圆柱孔，调焦部件3由孔内伸出以便于操作。具体调焦部件3可以为调焦手柄，如杆状手柄（如图2所示），也可以为调整环或调整盘等结构，对此不作具体限定。调焦部件3的工作原理及连接关系等请参考现有技术，此处不再赘述。
一体防护壳2用于对调节部件起到有效防护作用。其与外壳体1可拆卸的固定连接，以方便的罩设在调焦部件3外或取下。需要说明的是，此处的罩设在调节部件外，指一体防护壳2能够覆盖于调焦部件3之上，因而由于一体防护壳2的阻挡外界无法直接接触到调节部件。具体一体防护壳2的覆盖范围大小可根据实际情况进行设置，此处不作具体限定，只需使其能够覆盖调焦部件3即可，优选地可以覆盖调焦部件安装孔13。一般的，可以设置一体防护壳2罩设于调焦部件3所在的外壳体1的端面，如投影装置的前端面等。也可以将一体防护壳2设置为L形，L形的一边覆盖于调焦部件3所在的端面，另一边可以覆盖于与该端面相邻的另一端面。一体防护壳2可以设置于投影装置的镜头一侧，根据需要也可以在一体防护壳2上开设通孔，套设于镜头外以不影响投影。当然，也可以在一体防护壳2的对应镜头处设置透光板。一体防护壳2的设置，便于安装和拿取，调整好投影装置时将一体防护壳2固定罩设于调焦部件3外，当需要调整调焦部件3时，则将一体防护壳2由外壳体1上取下即可。
应用本实用新型提供的投影装置时，通过将一体防护壳2固定于外壳体1并覆盖于调焦部件3外，能够避免对调焦部件3的意外触碰，如用户意外触碰，以保持调焦状态的稳定。同时，有效减少了调焦部件3积灰现象，避免积灰对调焦部件3灵活性的不利影响。同时能够防止外界水及灰尘通过调焦部件3与外壳体1之间的缝隙进入投影装置内，避免由此带来的安全隐患，进而保证投影装置的质量。
进一步地，一体防护壳2通过第二磁性吸附部21与外壳体1的第一磁性吸附部11吸附连接。也就是外壳体1包括第一磁性吸附部11，一体防护壳2包括用于与第一磁性吸附部11吸附的第二磁性吸附部21，因而安装时通过磁力吸附将一体防护壳2固定于外壳体1上。采用磁性连接结构，一方面结构简单且便于一体防护壳2拆装，另一方面磁性吸附的作用力持久可靠，避免了机械连接结构受材料疲劳极限的制约，保证了连接可靠性、延长了一体防护壳2的使用寿命。
具体的，第一磁性吸附部11可以为固定于外壳体1上的永磁铁，第二磁性吸附部21为固定于一体防护壳2上的磁性材料件，如铁片等。永磁铁可以固定于外壳体1的外表面上，如通过注塑、镶件等嵌于外壳体1上。相应的，第二磁性吸附部21可以为固定于一体防护壳2朝向外壳体1的面上，具体可以也可以通过注塑、镶件等嵌于一体防护壳2上。通过第一磁性吸附部11与第二磁性吸附部21的吸附作用将一体防护壳2与外壳体1固定连接。当然，根据需要一体防护壳2也可以设置为磁性材料壳，则一体防护壳2的对应于第一磁性吸附部11的部分即为上述第二磁性吸附部21。根据需要，第二磁性吸附部21可以为永磁铁，而相应的第一磁性吸附部11采用磁性材料件。通过永磁铁与磁性材料件的设置，保证了连接可靠性的同时，有效节约了成本。根据需要，第一磁性吸附部11和第二磁性吸附部21均可以采用永磁铁，且二者磁极相异的一端相对设置，因而能够可靠的将一体防护壳2与外壳体1吸合。具体第一磁性吸附部11和第二磁性吸附部21的位置可以根据需要进行设置，此处不作具体限定。第二磁性吸附部21的个数可以根据需要进行设置，优选的，第二磁性吸附部21可以包括四个，两两分布于一体防护壳2的一端，或者也可以将四个第二磁性吸附部21分别设置于一体防护壳2的四角处。
为了使一体防护壳2能够更好的与外壳体1贴合，提升防尘效果，一体防护壳2可以包括用于覆盖在调焦部件3外的覆盖部23和用于与外壳体1上的镜头孔所在平面贴合的内凹部22。投影装置的外壳体1上开设有镜头孔，镜头由镜头孔内伸出，镜头孔所在的平面低于外壳体1的端面。因而一体防护壳2的内凹部22与镜头孔所在平面贴合，覆盖部23则罩设在调焦部件3外。即内凹部22相对于覆盖部23向内凹陷。通过上述设置，一方面便于一体防护壳2的定位，方便对其安装，另一方面内凹部22与镜头孔所在平面贴合，防止灰尘由一体防护壳2与镜头孔处外壳体1间的空隙进入，防尘效果好。
进一步地，内凹部22的端部呈与镜头孔的外径配合的圆弧形。也就是一体防护壳2在安装状态下，其端部与镜头孔外缘配合，具体可以为与镜头孔外缘设置预设间隔，优选地与镜头孔外缘对齐贴合，因而不影响镜头且不易积灰，同时更为整洁美观。为使得一体防护壳2安装时表面与外壳体1外端面平齐，外壳体1可以设置内凹区域，调焦部件3设置于内凹区域内，且其顶端高度小于外壳体1的外端面，也就是位于外端面以里，进而一体防护壳2安装时可以与外壳体1的外表面平齐。具体的，一体防护壳2的结构可以设置为与镜头另一侧的外壳体1结构对称，因而将一体防护壳2安装于外壳体1上时，整体美观。结构简单紧凑。
更进一步地，内凹部22上设置有第二磁性吸附部21。也就是通过将内凹部22与外壳体1连接而将一体防护壳2固定，连接更为可靠。内凹部22的第二磁性吸附部21的个数可以根据需要进行设置，在第二磁性吸附部21包括四个时，可以设置两个第二磁性吸附部21位于内凹部22，另两个第二磁性吸附部21位于与内凹部22相对的另一端。
为了便于由外壳体1上取下一体防护壳2，一体防护壳2上可以设置向内凹或向外凸的取下作用部26。具体可以在一体防护壳2的侧边设置向内凹的取下作用部26。如图3所示的设置在一体防护壳2的右侧边缘。取下作用部26的形状可以根据需要进行设置，如呈阶梯形内凹状，便于操作人员抠掀。根据需要，取下作用部26也可以设置为外凸的结构。取下作用部26上可以设置网纹，以增大摩擦便于将一体防护壳2取下。
进一步地，为了提高一体防护壳2的防尘效果，可以将一体防护壳2与外壳体1密封连接。如一体防护壳2的边缘设置有筋条，外壳体1上对应筋条开设有凹槽，筋条与凹槽卡接。安装时筋条卡设于凹槽中，以提供良好的防水防尘性能。具体筋条可以为橡胶等弹性材料制成。
在上述各实施例的基础上，还可以设置防脱部件4，防脱部件4的一端与外壳体1连接，另一端与一体防护壳2连接。防脱部件4的结构可以不作具体限定，其与一体防护壳2及外壳体1既可以为不可拆卸的固定连接也可以为可拆卸的固定连接。一体防护壳2脱离外壳体1后，由于防脱部件4的制约，避免了其不慎遗失。同时防脱部件4的设置，也为下一次一体防护壳2的安装提供了便利，有助于用户对其相对外壳体1的定位。
进一步地，外壳体1上开设有第一连接孔12，一体防护壳2的内壁上对应第一连接孔12处设置有凸台24，凸台24上开设有第二连接孔25，防脱部件4的一端与第一连接孔12卡接，另一端与第二连接孔25卡接。通过上述设置方式，一方面便于防脱部件4的安装及拆卸，在将一体防护壳2取下时，可以通过防脱部件4将一体防护壳2与外壳体1连接，避免一体防护壳2的遗失。在安装一体防护壳2时，也可以将防脱部件4取下。当然，在防脱部件4不影响一体防护壳2安装的情况下也可以不取下一体防护壳2。通过第一连接孔12和第二连接孔25的设置，也便于一体防护壳2安装时的定位。具体的，凸台24上第二连接孔25与第一连接孔12的对应关系，既包括一体防护壳2安装状态下第二连接孔25与第一连接孔12叠置，也包括二者以预定的位置关系，如方位、间距等设置。凸台24一般为与一体防护壳2朝向外壳的端面垂直设置的平台，为了增强其链接可靠性，凸台24平行于一体防护壳2端面的截面可以呈U形。当然，根据需要凸台24也可以包括与一体防护壳2朝向外壳体1的端面垂直设置的平台和与所述平台垂直的连接部，也就是连接部是平行于一体防护壳2端面的。
具体的，防脱部件4可以包括连接杆41和设置于连接杆41两端的弹性椎体部42，弹性椎体部42的宽度沿远离自由端的方向逐渐增大，且弹性椎体部的最大宽度大于第一连接孔12和第二连接孔25的宽度，连接杆41的宽度小于第一连接孔12和第二连接孔25的宽度。需要说明的是，此处的自由端对应防脱部件4的外端，因而弹性椎体部42由外端至内端宽度逐渐增大。通过弹性椎体部42及连接杆41的尺寸设置使得弹性椎体部42能够分别卡接于第一连接孔12和第二连接孔25中。弹性椎体部42具体可以为棱锥或圆锥，第一连接孔12和第二连接孔25的形状与弹性椎体部42的形状相对应。在采用棱锥时，其最大宽度大于第一连接孔12和第二连接孔25的宽度，其长度一般也可以设置为大于第一连接孔12和第二连接孔25的长度。优选的采用圆锥，则圆锥最大直径大于第一连接孔12和第二连接孔25的直径，连接杆41的直径小于第一连接孔12和第二连接孔25的直径，根据需要可以设置为连接杆41与弹性椎体部42相连处直径小于第一连接孔12和第二连接孔25的直径。进而安装时，连接杆41一端的圆锥体被挤压变形而插接固定于上述第二连接孔25中，同样的，另一端的圆锥体插接固定于上述第二连接孔25中，由于圆锥体的最大外径大于连接孔的直径，因此，防脱部件4保持分别与外壳体1和一体防护壳2相连接，从而，可以防止外壳体1与一体防护壳2完全脱离。防脱部件4与外壳体1和一体防护壳2可拆卸的固定连接时，具体也可以通过锁扣或悬臂卡接结构等其他连接结构。
进一步地，弹性椎体部42的自由端设置有引导柱43，引导柱43的宽度不大于弹性椎体部42自由端的宽度。也就是在防脱部件4的外端设置引导柱43。当弹性椎体部42呈圆锥形时，则引导柱43的直径不大于弹性椎体部42自由端的直径。因而装配时，能够更方便将上述圆锥体插接于第一连接孔12与第二连接孔25中。具体的，引导柱43可以与连接杆41同轴设置。
根据需要防脱部件4可以为刚性件，优选为柔性件，如柔性绳等，或者防脱部件4可以由硅胶等弹性材料制成，具有较大弹性，从而在允许第一壳体相对于第二壳体分离较大距离的同时可以为安装第一壳体和第二壳体提供一定的引导。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本实用新型。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本实用新型的精神或范围的情况下，在其它实施例中实现。因此，本实用新型将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

1、一种投影装置，包括外壳体和调焦部件，所述调焦部件凸出于至少部分所述外壳体；其特征在于，还包括用于罩设在所述调焦部件外的一体防护壳，所述外壳体与所述一体防护壳可拆卸的固定连接。
2、根据权利要求1所述的投影装置，其特征在于，所述外壳体包括第一磁性吸附部，所述一体防护壳包括用于与所述第一磁性吸附部吸合的第二磁性吸附部。
3、根据权利要求1所述的投影装置，其特征在于，所述一体防护壳包括用于覆盖在所述调焦部件外的覆盖部和用于与所述外壳体上的镜头孔所在平面贴合的内凹部。
4、根据权利要求3所述的投影装置，其特征在于，所述内凹部的端部呈与所述镜头孔的外径配合的圆弧形。
5、根据权利要求1所述的投影装置，其特征在于，所述一体防护壳上设置有向外凸或者向内凹的取下作用部。
6、根据权利要求1所述的投影装置，其特征在于，所述一体防护壳的边缘设置有筋条，所述外壳体上对应所述筋条开设有凹槽，所述筋条与所述凹槽卡接。
7、根据权利要求1-6任一项所述的投影装置，其特征在于，还包括防脱部件，所述防脱部件的一端与所述外壳体连接，另一端与所述一体防护壳连接。
8、根据权利要求7所述的投影装置，其特征在于，所述外壳体上开设有第一连接孔，所述一体防护壳的内壁上对应所述第一连接孔处设置有凸台，所述凸台上开设有第二连接孔，所述防脱部件的一端与所述第一连接孔卡接，另一端与所述第二连接孔卡接。
9、根据权利要求8所述的投影装置，其特征在于，所述防脱部件包括连接杆和设置于所述连接杆两端的弹性椎体部，所述弹性椎体部的宽度沿远离自由端的方向逐渐增大，且所述弹性椎体部的最大宽度大于所述第一连接孔和第二连接孔的宽度，所述连接杆的宽度小于所述第一连接孔和第二连接孔的宽度。
10、根据权利要求9所述的投影装置，其特征在于，所述弹性椎体部的自由端设置有引导柱，所述引导柱的宽度不大于所述弹性椎体部自由端的宽度。
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CN205982960U (zh) * 2016-08-18 2017-02-22 深圳市光峰光电技术有限公司 一种投影装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201340510Y (zh) * 2008-12-22 2009-11-04 日立数字映像(中国)有限公司 具有防尘结构的多媒体液晶投影仪
CN204215590U (zh) * 2014-12-04 2015-03-18 黑龙江科技大学 一种公共管理学教学使用的投影仪
CN104749862A (zh) * 2013-12-26 2015-07-01 中强光电股份有限公司 投影机的防尘罩
CN204925593U (zh) * 2015-08-03 2015-12-30 阎军 球状投影设备
CN105511210A (zh) * 2014-09-22 2016-04-20 中强光电股份有限公司 投影机
CN205982960U (zh) * 2016-08-18 2017-02-22 深圳市光峰光电技术有限公司 一种投影装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201340510Y (zh) * 2008-12-22 2009-11-04 日立数字映像(中国)有限公司 具有防尘结构的多媒体液晶投影仪
CN104749862A (zh) * 2013-12-26 2015-07-01 中强光电股份有限公司 投影机的防尘罩
CN105511210A (zh) * 2014-09-22 2016-04-20 中强光电股份有限公司 投影机
CN204215590U (zh) * 2014-12-04 2015-03-18 黑龙江科技大学 一种公共管理学教学使用的投影仪
CN204925593U (zh) * 2015-08-03 2015-12-30 阎军 球状投影设备
CN205982960U (zh) * 2016-08-18 2017-02-22 深圳市光峰光电技术有限公司 一种投影装置

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