An aluminum alloy housing for a projector main unit

Abstract

The utility model discloses an aluminium alloy shell of projector host computer, and the shell aims at solving the inconvenient installation and removal of the dustproof plate of the existing projector host computer through a plurality of bolts fixed on the aluminium alloy shell. The shell comprises an aluminium alloy shell, the left side of the aluminium alloy shell is provided with a front cover plate, a front window door is formed in the front cover plate, the right side of the aluminium alloy shell is provided with a rear cover plate, a stepped hole is formed in the middle part of the rear cover plate, clamping grooves are formed in the inner walls of the front and back sides of the stepped hole, and an installation cylinder is arranged in the stepped hole. The utility model is provided with a dust screen on the rear cover plate, which can reduce the dust entering while ensuring the heat dissipation efficiency. After long time use, the cleaning personnel press the buttons on the left and right sides to drive the clamping blocks to separate from the clamping grooves. At this time, the installation cylinder and the dust screen can be taken out from the stepped hole on the rear cover plate, so that the bolts do not need to be disassembled and assembled, and the disassembly and assembly are very convenient.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft projector technology, specifically relating to an aluminum alloy casing for a projector host. Background Technology

[0002] In the aviation field, aircraft projectors, as an important airborne device, play an indispensable role in flight safety, crew operation, and passenger experience. The aluminum alloy casing of the aircraft projector, as a key component protecting the precision internal parts, directly affects the projector's stability, reliability, and lifespan. Furthermore, aluminum alloys are widely used in the aerospace industry due to their low density, high specific strength, good corrosion resistance, and excellent machinability.

[0003] To ensure heat dissipation of the aircraft projector unit, ventilation openings and dust covers are installed on the rear side of the aluminum alloy casing. Over time, a lot of dust will accumulate on the dust covers. Direct cleaning will cause dust to enter the interior of the projector. Generally, the dust covers need to be removed from the aluminum alloy casing. Since the dust covers are fixed to the aluminum alloy casing with multiple bolts, tools are required to remove the casing during installation and removal. In addition, the bolts are small and are not easy to store during installation and are easy to lose, making disassembly and assembly quite inconvenient. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an aluminum alloy shell for a projector host. This shell is designed to solve the problem that the dust cover of the existing projector host is fixed to the aluminum alloy shell by multiple bolts, which makes installation and disassembly inconvenient.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides an aluminum alloy shell for a projector host. The shell includes an aluminum alloy shell, a front cover plate on the left side with a front viewing window, and a rear cover plate on the right side. A stepped hole is formed in the middle of the rear cover plate, and slots are formed on the inner walls of both the front and rear sides of the stepped hole. A mounting cylinder is installed inside the stepped hole. A dustproof net is fixedly connected to the right side of the mounting cylinder. Sliding rods are slidably inserted into both the front and rear sides of the mounting cylinder. One end of the sliding rod is located outside the mounting cylinder and is fixedly connected to a button. The other end of the sliding rod is located inside the mounting cylinder and is fixedly connected to a connecting rod. A spring is sleeved on the outer surface of the sliding rod. A locking block is fixedly connected to the other end of the connecting rod. The other end of the locking block passes through the mounting cylinder and is located inside the slot.

[0008] Preferably, a plurality of fixing rods are fixedly connected to the right edge of the front cover plate, the fixing rods passing through the aluminum alloy shell and being fixedly connected to the rear cover plate through a positioning component.

[0009] Furthermore, the positioning component includes a cavity inside the rear cover plate. Two movable rods are slidably connected to the upper and lower sides of the cavity. A positioning groove is provided at one end of the fixed rod inside the cavity. A positioning block is fixedly connected to the end of the movable rod near the positioning groove. A lead screw is rotatably connected between the upper and lower inner walls of the cavity through a bearing. A handle is fixedly connected to the outer surface of the lead screw, which passes through the two movable rods and is located inside the stepped hole. The upper and lower outer surfaces of the lead screw are respectively provided with left-hand threads and right-hand threads. Both movable rods are threadedly connected to the lead screw.

[0010] Furthermore, two guide rods are fixedly connected to the inner walls of both the upper and lower sides of the cavity. The other end of the guide rod passes through the movable rod and is fixedly connected to the inner wall of the stepped hole. The guide rod and the movable rod are slidably connected.

[0011] Furthermore, clearance grooves are provided on both the upper and lower sides of the left end of the mounting cylinder, and the lead screw is located inside the clearance grooves.

[0012] Furthermore, multiple protrusions and multiple heat dissipation fins are fixedly connected to the upper and lower surfaces of the aluminum alloy shell, and through holes are opened on the protrusions, through which the fixing rod passes.

[0013] Furthermore, the upper surface of the aluminum alloy shell is bent upwards to form a boss, the upper surface of the boss is parallel to the upper surface of the aluminum alloy shell, and the bends on the left and right sides of the boss coincide with the two protrusions on the upper surface.

[0014] Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes the excellent heat absorption properties of aluminum profiles by setting heat dissipation fins on the outer side of the aluminum alloy shell to quickly absorb heat and conduct it to the heat dissipation fins for heat dissipation. At the same time, a dustproof net is installed on the rear cover plate to ensure heat dissipation efficiency while reducing dust entry and preventing high temperature alarms and performance degradation of the projector. After prolonged use, cleaning personnel can press the buttons on the left and right sides to disengage the locking blocks from the slots. At this time, the mounting cylinder along with the dustproof net can be removed from the stepped hole on the rear cover plate, thus eliminating the need to remove the bolts and making disassembly and assembly very convenient.

[0017] This invention utilizes a rotating handle to drive a lead screw to rotate. During the rotation of the lead screw, two movable rods move closer to the center. As the movable rods move, they cause the positioning block to disengage from the positioning groove on the fixed rod. Then, the front cover plate, along with the fixed rod, is pulled out from the through hole. At this point, the rear cover plate can be removed from the aluminum alloy shell, facilitating internal maintenance of the projector. Attached Figure Description

[0018] Figure 1 This is a right-view stereoscopic structural diagram of the present invention.

[0019] Figure 2 This is a left-view stereoscopic structural diagram of the present invention.

[0020] Figure 3 This is a top view cross-sectional structural diagram of this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the rear cover plate of this utility model.

[0022] Figure 5 This is the utility model Figure 3 A magnified structural diagram of point A in the middle.

[0023] Figure 6 This is the utility model Figure 4 A magnified structural diagram at point B in the middle.

[0024] Figure 7 This is a schematic diagram of the installation structure of the fixing rod of this utility model.

[0025] Figure 8 This is a schematic diagram of the aluminum alloy shell of this utility model.

[0026] The markings in the attached diagram are as follows: 1. Aluminum alloy shell; 2. Front cover plate; 3. Front viewing window; 4. Rear cover plate; 5. Step hole; 6. Slot; 7. Mounting cylinder; 8. Dustproof net; 9. Slide rod; 10. Button; 11. Connecting rod; 12. Spring; 13. Locking block; 14. Fixing rod; 15. Positioning assembly; 701. Clearance groove; 1501. Cavity; 1502. Movable rod; 1503. Positioning groove; 1504. Positioning block; 1505. Lead screw; 1506. Handle; 1507. Guide rod; 16. Protrusion; 17. Heat dissipation fins; 18. Through hole; 19. Boss. Detailed Implementation

[0027] This specific embodiment is an aluminum alloy casing for a projector host, the structural diagram of which is shown below. Figures 1-8As shown, the housing includes an aluminum alloy housing 1. A front cover plate 2 is provided on the left side of the aluminum alloy housing 1, and a front viewing window 3 is provided on the front cover plate 2. A rear cover plate 4 is provided on the right side of the aluminum alloy housing 1. A stepped hole 5 is provided in the middle of the rear cover plate 4. A slot 6 is provided on the inner wall of both the front and rear sides of the stepped hole 5. An installation cylinder 7 is provided inside the stepped hole 5. A dustproof net 8 is fixedly connected to the right side of the installation cylinder 7. The dustproof net 8 reduces dust entry while ensuring heat dissipation efficiency. A sliding rod 9 is slidably inserted on both the front and rear sides of the installation cylinder 7. The cross-section of the sliding rod 9 is rectangular to prevent rotation. One end of the sliding rod 9 is located outside the installation cylinder 7 and is fixedly connected to a button 10. The other end of the sliding rod 9 is located inside the installation cylinder 7 and is fixedly connected to a connecting rod 11. A spring 12 is sleeved on the outer surface of the sliding rod 9. The two ends of the spring 12 are fixed to the connecting rod 11 and the inner wall of the installation cylinder 7. A locking block 13 is fixedly connected to the other end of the connecting rod 11. The other end of the locking block 13 passes through the installation cylinder 7 and is located inside the slot 6.

[0028] like Figure 3 , Figure 4 and Figure 6 As shown: In this embodiment, a plurality of fixing rods 14 are fixedly connected to the right edge of the front cover plate 2. The fixing rods 14 penetrate the aluminum alloy shell 1 and are fixedly connected to the rear cover plate 4 through the positioning assembly 15. The positioning assembly 15 includes a cavity 1501 opened inside the rear cover plate 4. Two movable rods 1502 are slidably connected to the upper and lower sides of the cavity 1501. A positioning groove 1503 is opened at one end of the fixing rod 14 inside the cavity 1501. A positioning block 1504 is fixedly connected to one end of the movable rod 1502 near the positioning groove 1503. A lead screw 1505 is rotatably connected between the upper and lower inner walls of the cavity 1501 through a bearing. A handle 1506 is fixedly connected to the outer surface of the lead screw 1505, which passes through the two movable rods 1502 and is located inside the stepped hole 5. The upper and lower outer surfaces of the lead screw 1505 are respectively provided with left-hand threads and right-hand threads. Both movable rods 1502 are threadedly connected to the lead screw 1505.

[0029] When the internal parts of the projector need to be repaired, rotate the handle 1506 to drive the lead screw 1505 to rotate. During the rotation of the lead screw 1505, the two movable rods 1502 can be driven to move closer to the center. During the movement of the movable rods 1502, the positioning block 1504 can be driven to disengage from the positioning groove 1503 on the fixed rod 14. Then, the front cover 2 together with the fixed rod 14 can be pulled out from the through hole 18. At this time, the rear cover 4 can be removed from the aluminum alloy shell 1.

[0030] like Figure 1 and Figure 4As shown: In this embodiment, two guide rods 1507 are fixedly connected to the inner walls of the upper and lower sides of the cavity 1501. The other end of the guide rod 1507 passes through the movable rod 1502 and is fixedly connected to the inner wall of the stepped hole 5. The guide rod 1507 is slidably connected to the movable rod 1502. The guide rod 1507 makes the up-and-down movement of the movable rod 1502 more stable, avoiding tilting or jamming.

[0031] like Figure 3 and Figure 4 As shown: In this embodiment, clearance grooves 701 are provided on both the upper and lower sides of the left end of the mounting cylinder 7, and the lead screw 1505 is located inside the clearance groove 701; in this way, after the mounting cylinder 7 is installed in the stepped hole 5, the lead screw 1505 is located inside the clearance groove 701, which will not affect the fixation of the mounting cylinder 7.

[0032] like Figure 2 and Figure 8 As shown: In this embodiment, multiple protrusions 16 and multiple heat dissipation fins 17 are fixedly connected to the upper and lower surfaces of the aluminum alloy shell 1. The heat dissipation fins 17 increase the contact area with air. Through holes 18 are opened on the protrusions 16. The fixing rod 14 passes through the through holes 18. In this way, the front cover plate 2 together with the fixing rod 14 is inserted into the cavity 1501 of the rear cover plate 4 through the through holes 18, so that the aluminum alloy shell 1, the front cover plate 2 and the rear cover plate 4 can be firmly combined together.

[0033] like Figure 1 and Figure 8 As shown: In this embodiment, the upper surface of the aluminum alloy shell 1 is bent upward to form a boss 19. The upper surface of the boss 19 is parallel to the upper surface of the aluminum alloy shell 1, and the bends on the left and right sides of the boss 19 coincide with the two protrusions 16 on the upper surface. In this way, the excellent heat absorption effect of the aluminum profile is utilized to quickly absorb the temperature and conduct the heat to the heat dissipation fins 17 for heat dissipation.

[0034] Working principle: By setting heat dissipation fins 17 on the outside of the aluminum alloy shell 1, the excellent heat absorption effect of the aluminum profile is utilized to quickly absorb heat and conduct it to the heat dissipation fins 17 for heat dissipation. At the same time, a dustproof net 8 is installed on the rear cover plate 4 to reduce dust ingress while ensuring heat dissipation efficiency, thus preventing high temperature alarms and performance degradation of the projector. After prolonged use, the cleaning personnel press the buttons 10 on the left and right sides to move the sliding rod 9 and connecting rod 11 inward and stretch the spring 12. During the movement, the connecting rod 11 can drive the locking block 13 to disengage from the locking groove 6. At this time, the mounting cylinder 7 along with the dustproof net 8 can be removed from the stepped hole 5 on the rear cover plate 4, thus eliminating the need to remove the bolts. The disassembly and assembly are very convenient. When the internal parts of the projector need to be repaired, the handle 1506 is rotated to drive the lead screw 1505 to rotate. Since the upper and lower outer surfaces of the lead screw 1505 are respectively provided with left-hand and right-hand threads, and the two movable rods 1502 are threadedly connected to the lead screw 1505, the lead screw 1505 can drive the two movable rods 1502 to move closer to the center during the rotation. During the movement of the movable rods 1502, the positioning block 1504 can be disengaged from the positioning groove 1503 on the fixed rod 14. Then the front cover 2 together with the fixed rod 14 can be pulled out from the through hole 18. At this time, the rear cover 4 can be removed from the aluminum alloy shell 1, which facilitates the maintenance of the internal parts of the projector.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An aluminum alloy casing for a projector host, the casing comprising an aluminum alloy casing (1), characterized in that: A front cover plate (2) is provided on the left side of the aluminum alloy shell (1). A front viewing window (3) is provided on the front cover plate (2). A rear cover plate (4) is provided on the right side of the aluminum alloy shell (1). A stepped hole (5) is provided in the middle of the rear cover plate (4). A slot (6) is provided on the inner wall of both the front and rear sides of the stepped hole (5). An installation cylinder (7) is provided inside the stepped hole (5). A dustproof net (8) is fixedly connected to the inner right side of the installation cylinder (7). A sliding rod (9) is slidably inserted on both the front and rear sides of the installation cylinder (7). One end of the sliding rod (9) is located outside the installation cylinder (7) and is fixedly connected to a button (10). The other end of the sliding rod (9) is located inside the installation cylinder (7) and is fixedly connected to a connecting rod (11). A spring (12) is sleeved on the outer surface of the sliding rod (9). A locking block (13) is fixedly connected to the other end of the connecting rod (11). The other end of the locking block (13) passes through the installation cylinder (7) and is located inside the slot (6).

2. The aluminum alloy casing of the projector host according to claim 1, characterized in that, Multiple fixing rods (14) are fixedly connected to the right edge of the front cover plate (2). The fixing rods (14) penetrate the aluminum alloy shell (1) and are fixedly connected to the rear cover plate (4) through the positioning component (15).

3. The aluminum alloy casing of the projector host according to claim 2, characterized in that, The positioning component (15) includes a cavity (1501) opened inside the rear cover plate (4). Two movable rods (1502) are slidably connected to the upper and lower sides of the cavity (1501). A positioning groove (1503) is opened at one end of the fixed rod (14) located inside the cavity (1501). A positioning block (1504) is fixedly connected to one end of the movable rod (1502) near the positioning groove (1503). A lead screw (1505) is rotatably connected between the upper and lower inner walls of the cavity (1501) through a bearing. A handle (1506) is fixedly connected to the outer surface of the lead screw (1505) that passes through the two movable rods (1502) and is located inside the stepped hole (5). The upper and lower outer surfaces of the lead screw (1505) are respectively provided with left-hand threads and right-hand threads. Both movable rods (1502) are threadedly connected to the lead screw (1505).

4. The aluminum alloy casing of the projector host according to claim 3, characterized in that, Two guide rods (1507) are fixedly connected to the inner walls of the upper and lower sides of the cavity (1501). The other end of the guide rod (1507) passes through the movable rod (1502) and is fixedly connected to the inner wall of the stepped hole (5). The guide rod (1507) is slidably connected to the movable rod (1502).

5. The aluminum alloy casing of the projector host according to claim 4, characterized in that, The mounting cylinder (7) has clearance grooves (701) on both the upper and lower sides of its left end, and the lead screw (1505) is located inside the clearance grooves (701).

6. The aluminum alloy casing of the projector host according to claim 5, characterized in that, The upper and lower surfaces of the aluminum alloy shell (1) are fixedly connected with multiple protrusions (16) and multiple heat dissipation fins (17). The protrusions (16) are provided with through holes (18), and the fixing rod (14) passes through the through holes (18).

7. The aluminum alloy casing of the projector host according to claim 6, characterized in that, The upper surface of the aluminum alloy shell (1) is bent upward to form a boss (19). The upper surface of the boss (19) is parallel to the upper surface of the aluminum alloy shell (1). The bends on the left and right sides of the boss (19) coincide with the two protrusions (16) on the upper surface.

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