Projection ray machine convenient to disassemble and maintain

Abstract

The projection ray machine convenient to disassemble and maintain comprises a projection ray machine body, a thread adjusting hole, a thread bolt, a bottom cover, a positioning seat, a fixing seat, a locking clamping block, a gear and a pressing block, the thread adjusting hole is formed in the lower end face of the projection ray machine body, the thread bolt is arranged in the thread adjusting hole, and the bottom cover is arranged on the lower end face of the projection ray machine body. A positioning seat is arranged on the inner side face of the bottom cover, a fixing seat is arranged in the projection ray machine, a locking clamping block is arranged in the fixing seat, a gear is rotatably arranged in the fixing seat, and a pressing block is arranged in the fixing seat, so that the problem that a bottom cover of an original projection ray machine is inconvenient to mount and dismount is solved through the design. The cover plate is locked and fixed through the locking clamping block and the positioning seat, mounting and dismounting are simple and convenient, the inclination angle of the projection ray machine can be adjusted through cooperation of the supporting bottom feet and the threaded bolts, and practicability is high.

Description

Technical Field

[0001] This utility model is a projection optical engine that is easy to disassemble and repair, belonging to the field of projection optical engine technology. Background Technology

[0002] A projector, also known as a projector, is a device that projects images or videos onto a screen. It can be connected to computers, VCD players, DVD players, Blu-ray players, game consoles, DV cameras, etc., through different interfaces to play corresponding video signals. Projectors are widely used in homes, offices, schools, and entertainment venues. The bottom cover of existing projectors is usually a plastic cover plate, which is assembled and installed by corresponding screws and screw holes. However, this installation method makes the bottom cover difficult to disassemble quickly, and the screws are at risk of aging and rusting, affecting the normal opening and closing of the bottom cover, resulting in low practicality. There is an urgent need for a projection optical engine that is easy to disassemble and repair to solve the above-mentioned problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a projection optical engine that is easy to disassemble and repair, so as to solve the problems mentioned in the background technology. This utility model has a reasonable structure. The cover plate is locked and fixed by locking blocks and positioning seats, and the installation and disassembly are simple and convenient. Moreover, the support feet and threaded bolts can adjust the tilt angle of the projection optical engine, making it highly practical.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a projection optical engine that is easy to disassemble and repair, comprising a projection optical engine body, a threaded adjustment hole, a threaded bolt, a bottom cover, a positioning seat, a fixing seat, a locking block, a gear, and a pressing block. The projection optical engine body has a threaded adjustment hole on its lower end face, and a threaded bolt is provided inside the threaded adjustment hole. The projection optical engine body has a bottom cover on its lower end face, and a positioning seat is provided on the inner side of the bottom cover. The projection optical engine has a fixing seat inside, and a locking block is provided inside the fixing seat. A gear is rotatably provided inside the fixing seat, and a pressing block is provided inside the fixing seat.

[0005] Furthermore, the fixed base has a cavity inside, and the locking block slides tightly along the inner wall of the cavity. The locking block has a first rack on the side relatively close to the gear, and the first rack meshes with the gear.

[0006] Furthermore, the pressing block slides tightly along the inner wall of the cavity, and a second rack is provided on the side of the pressing block that is relatively close to the gear, and the second rack meshes with the gear.

[0007] Furthermore, a reset spring is provided inside the cavity, with both ends of the reset spring abutting against the inner side of the pressing block and the inner wall of the cavity, respectively.

[0008] Furthermore, a rotating shaft is provided inside the cavity, and the gear is rotatably sleeved on the annular side of the rotating shaft.

[0009] Furthermore, a locking groove is provided on the outer side of the positioning seat, and the locking groove engages with the locking block.

[0010] Furthermore, a first locking plate is provided at the end of the bottom cover that is relatively far from the positioning seat, and a second locking plate is provided on the lower end face of the projection optical engine body, with the first locking plate and the second locking plate engaging with each other.

[0011] Furthermore, four sets of threaded adjustment holes and threaded bolts of equal specifications are provided. The threaded adjustment holes and threaded bolts mesh with each other, and the lower end of the threaded bolts is provided with a support foot.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a projection optical engine that is easy to disassemble and repair. Because this utility model adds a pressing block, a return spring, a gear, a locking block, a first rack, and a second rack, when it is necessary to remove the bottom cover, the user pushes the pressing block inward, causing the pressing block to slide inward along the inner wall of the cavity while compressing the return spring. The second rack drives the gear to rotate. Since the gear and the first rack mesh with each other, the rotation of the gear drives the locking slot to retract inward through the second rack, and releases the mutual locking state between the locking block and the locking slot. Then the bottom cover can be lifted and removed from the edge to facilitate maintenance and repair of the projection optical engine body. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a projection optical engine that is easy to disassemble and repair according to the present invention;

[0015] Figure 2 This is a schematic diagram of the projection optical engine of this utility model from another angle, which is easy to disassemble and repair.

[0016] Figure 3 This is a schematic diagram of a partial disassembly structure of a projection optical engine that is easy to disassemble and repair according to the present invention;

[0017] Figure 4 This is a partial structural diagram of a projection optical engine that is easy to disassemble and repair according to the present invention;

[0018] Figure 5 This is a partial structural diagram of a projection optical engine that is easy to disassemble and repair according to the present invention;

[0019] Figure 6This is a partial cross-sectional view of a projection optical engine that is easy to disassemble and repair according to the present invention.

[0020] In the diagram: 1-Projection optical engine body, 2-Threaded adjustment hole, 3-Threaded bolt, 31-Support foot, 4-Bottom cover, 41-First locking plate, 42-Second locking plate, 5-Positioning seat, 51-Locking slot, 6-Fixing seat, 61-Cavity, 7-Locking block, 71-First rack, 8-Gear, 81-Rotating shaft, 9-Pressing block, 91-Second rack, 92-Reset spring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1-6 This utility model provides a technical solution: a projection optical engine that is easy to disassemble and repair, including a projection optical engine body 1, a threaded adjustment hole 2, a threaded bolt 3, a bottom cover 4, a positioning seat 5, a fixing seat 6, a locking block 7, a gear 8, and a pressing block 9. The projection optical engine body 1 has a threaded adjustment hole 2 on its lower end face, and a threaded bolt 3 is provided inside the threaded adjustment hole 2. The bottom cover 4 is provided on the lower end face of the projection optical engine body 1, and a positioning seat 5 is provided on the inner side of the bottom cover 4. The fixing seat 6 is provided inside the projection optical engine, and a locking block 7 is provided inside the fixing seat 6. A gear 8 is rotatably provided inside the fixing seat 6, and a pressing block 9 is provided inside the fixing seat 6. This design solves the problem that the bottom cover of the original projection optical engine body is inconvenient to install and disassemble.

[0023] As the first embodiment of this utility model: A cavity 61 is provided inside the fixing base 6. A locking block 7 slides tightly along the inner wall of the cavity 61. A first rack 71 is provided on the side of the locking block 7 closest to the gear 8. The first rack 71 meshes with the gear 8. The rotation of the gear 8 can drive the locking block 7 to slide along the inner wall of the cavity 61 via the first rack 71. A pressing block 9 slides tightly along the inner wall of the cavity 61. A second rack 91 is provided on the side of the pressing block 9 closest to the gear 8. The second rack 91 meshes with the gear 8. The movement of the pressing block 9 can drive the gear 8 to rotate inside the cavity 61 via the second rack 91. A return spring 92 is provided inside the cavity 61. The two ends of the return spring 92 abut against the inner side of the pressing block 9 and the inner wall of the cavity 61, respectively. The return spring 92 helps the pressing block 9 to return to its original position. 1. An internal rotating shaft 81 is provided, and a gear 8 is rotated and sleeved on the annular side of the rotating shaft 81. The rotating shaft 81 facilitates fixing the position of the gear 8. A locking groove 51 is provided on the outer side of the positioning seat 5. The locking groove 51 and the locking block 7 engage with each other. The engagement of the locking block 7 and the locking groove 51 can fix the positioning seat 5. A first locking plate 41 is provided at the end of the bottom cover 4 that is away from the positioning seat 5. A second locking plate 42 is provided on the lower end face of the projection optical engine body 1. The first locking plate 41 and the second locking plate 42 engage with each other. The first locking plate 41 and the second locking plate 42 can limit the other end of the bottom cover 4. Four sets of threaded adjustment holes 2 and threaded bolts 3 are provided with equal specifications. The threaded adjustment holes 2 and the threaded bolts 3 mesh with each other. A support foot 31 is provided at the lower end of the threaded bolt 3. This design can adjust the height of each support foot 31.

[0024] As a second embodiment of this utility model: When the user needs to install the bottom cover 4, firstly, the first locking plate 41 at one end of the bottom plate is engaged with the second locking plate 42 at the bottom of the projection optical engine body 1. Then, the bottom cover 4 is flipped closed by the contact point between the first locking plate 41 and the second locking plate 42 until the positioning seat 5 and the fixing seat 6 are at the same horizontal position. At this time, the locking block 7 and the locking groove 51 are engaged with each other, thereby fixing the bottom cover 4. When the bottom cover 4 needs to be removed, the user pushes the pressing block 9 inward, so that the pressing block 9 slides inward along the inner wall of the cavity 61 while compressing the return spring 92, and drives the gear 8 to rotate through the second rack 91. Since the gear 8 and the first rack 71 mesh with each other, the rotation of the gear 8 drives the locking groove 51 to retract inward through the second rack 91. The locking block 7 and locking slot 51 are released from their interlocking state. Then, the bottom cover 4 can be flipped up and disassembled from the edge to facilitate maintenance and repair of the inside of the projection engine body 1. When the projection engine body 1 is projecting, the user can adjust the height of the support feet 31 by rotating the threaded bolt 3. For example, when the four sets of support feet 31 are on the same horizontal plane, the projection engine body 1 is projected horizontally. When the first two sets of support feet 31 extend longer than the last two sets of support feet 31, the projection engine body 1 is projected tilted upward. Similarly, when the first two sets of support feet 31 extend shorter than the last two sets of support feet 31, the projection engine body 1 is projected tilted downward. The projection angle of the projection engine body 1 can be changed by simple adjustment.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A projection optical engine that is easy to disassemble and repair, comprising a projection optical engine body, a threaded adjustment hole, a threaded bolt, a bottom cover, a positioning seat, a fixing seat, a locking block, a gear, and a pressing block, characterized in that: The projection optical engine body has a threaded adjustment hole on its lower end face, and a threaded bolt is provided inside the threaded adjustment hole. The projection optical engine body has a bottom cover on its lower end face, and a positioning seat is provided on the inner side of the bottom cover. The projection optical engine has a fixed seat inside, and a locking block is provided inside the fixed seat. A gear is rotatably provided inside the fixed seat, and a pressing block is provided inside the fixed seat.

2. A projection optical engine that is easy to disassemble and repair according to claim 1, characterized in that: The fixed base has a cavity inside, and the locking block slides tightly along the inner wall of the cavity. The locking block has a first rack on the side closer to the gear, and the first rack meshes with the gear.

3. A projection optical engine that is easy to disassemble and repair according to claim 2, characterized in that: The pressing block slides tightly along the inner wall of the cavity, and a second rack is provided on the side of the pressing block that is relatively close to the gear, and the second rack meshes with the gear.

4. A projection optical engine that is easy to disassemble and repair according to claim 2, characterized in that: A reset spring is provided inside the cavity, and the two ends of the reset spring abut against the inner side of the pressing block and the inner wall of the cavity, respectively.

5. A projection optical engine that is easy to disassemble and repair according to claim 2, characterized in that: The cavity is equipped with a rotating shaft, and the gear is rotatably sleeved on the annular side of the rotating shaft.

6. A projection optical engine that is easy to disassemble and repair according to claim 1, characterized in that: The outer side of the positioning seat is provided with a locking slot, which engages with the locking block.

7. A projection optical engine that is easy to disassemble and repair according to claim 1, characterized in that: The bottom cover is provided with a first locking plate at the end opposite to the positioning seat, and the projection optical engine body is provided with a second locking plate on the lower end face. The first locking plate and the second locking plate are engaged with each other.

8. A projection optical engine that is easy to disassemble and repair according to claim 1, characterized in that: The threaded adjustment holes and threaded bolts are provided in four sets of equal specifications. The threaded adjustment holes and threaded bolts mesh with each other, and the lower end of the threaded bolts is provided with a support foot.

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