Universal testing device for airborne avionics products

Abstract

The utility model relates to the technical field of testing devices, and discloses a general testing device for airborne avionics products, which comprises a testing case, a mounting frame is arranged on the back of the testing case, a dustproof net is fixedly connected to the inner wall of the mounting frame, and a fixing mechanism is arranged on the testing case. The fixing mechanism comprises a mounting groove. According to the general testing device for the airborne avionics product, a pull rod is pulled to drive a wedge-shaped block to move and compress a spring II, and meanwhile, a hinge strip is pushed to rotate around a hinge point and drive a push rod to slide along the inclined surface of the wedge-shaped block under the action of the elastic force of the spring I, so that the hinge strip drives a clamping block to move and break away from a mounting frame, and fixation of the mounting frame is relieved; therefore, the mounting frame and the dustproof net are separated from the test case, the dustproof net is convenient to clean, the operation is simple, and the disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a universal testing device for airborne avionics products. Background Art

[0002] Airborne avionics products such as mission management systems, suspension management systems, aiming and display systems, and optoelectronic systems are characterized by complex systems and a large number and variety of external cross-linking signals. Currently, most domestic tests on avionics products use dedicated testing equipment.

[0003] However, after long-term use, the dustproof net of the test equipment of the original avionics products is easily covered with dust, and the dustproof net is inconvenient to remove, which affects the cleaning of the dust and affects the air circulation. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides a universal test device for airborne avionics products. The utility model has the advantages that the wedge block is driven to move and the spring 2 is compressed by pulling the pull rod, and the hinge bar is pushed to rotate around the hinge point by the elastic force of the spring 1 and the push rod is driven to slide along the inclined surface of the wedge block, so that the hinge bar drives the card block to move away from the installation frame, thereby releasing the fixation of the installation frame, so that the installation frame, the dust screen and the test chassis are separated, and the dust screen is convenient for cleaning, and the operation is simple and the disassembly and assembly are convenient.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a universal test device for airborne avionics products, comprising a test case, a mounting frame is provided on the back of the test case, a mounting hole is provided on the back of the test case, the mounting frame is plugged into the mounting hole, a dustproof net is fixedly connected to the inner wall of the mounting frame, and a fixing mechanism is provided on the test case;

[0008] The fixing mechanism comprises: a mounting groove, the mounting groove is arranged on the inner wall of the back side of the test case, the inner wall of the mounting groove is hinged with a hinge strip, a clamping block is fixedly connected to the lower left side of the hinge strip, the clamping block is clamped with the mounting frame, a spring 1 is fixedly connected to the upper right side of the hinge strip, and the right end of the spring 1 is fixedly connected to the inner wall of the mounting groove, a push rod is fixedly connected to the upper front side of the hinge strip, a spring 2 is fixedly connected to the inner wall of the mounting groove, a wedge block is fixedly connected to the front end of the spring 2, and the inclined surface of the wedge block is in contact with the left end of the push rod. A pull rod is fixedly connected to the back of the wedge block, and the rear end of the pull rod passes through the test chassis and extends backward. There are two groups of the fixing mechanisms, which are arranged opposite to each other. The pull rod is pulled to drive the wedge block to move and compress spring 2. At the same time, the elastic force of spring 1 pushes the hinge bar to rotate around the hinge point and drives the push rod to slide along the inclined surface of the wedge block, so that the hinge bar drives the card block to move away from the installation frame, thereby releasing the fixation of the installation frame, thereby separating the installation frame and the dustproof net from the test chassis, making it convenient to clean the dustproof net, and the operation is simple and the disassembly and assembly are convenient.

[0009] Preferably, a connector panel is provided on the left side of the front of the test chassis, a display screen is embedded on the right side of the front of the test chassis, and a test module is provided inside the test chassis. By connecting the wiring terminals with the interface of the connector panel, the test module tests the airborne avionics products, and the test data is displayed on the display screen.

[0010] Preferably, a card slot is provided on the right side of the installation frame, and the card block is card-connected in the card slot.

[0011] Preferably, two positioning baffles are relatively fixedly connected to the back inner wall of the test chassis, and the front of the installation frame is in contact with the back of the positioning baffles. The positioning baffles can quickly block and position the installation frame, thereby facilitating the rapid installation of the installation frame and the dustproof net.

[0012] Preferably, a protective cover is slidably connected to the front of the test chassis, and a finger groove is provided on the front of the protective cover. The protective cover can protect the display screen and the connector panel to prevent dust from entering the interface of the connector panel, thereby increasing the service life.

[0013] Preferably, two slide grooves are provided on the front of the test chassis, and the top of each slide groove is opened. The protective cover is arranged in a "U" shape and is slidably connected in the slide groove. The protective cover is pushed to slide along the inner wall of the slide groove and detach from the test chassis, thereby exposing the connector panel and facilitating the connection of the wiring terminals.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a universal test device for airborne avionics products, which has the following beneficial effects:

[0016] 1. This universal test device for airborne avionics products drives the wedge block to move and compresses spring 2 by pulling the pull rod. At the same time, the spring 1 itself's elastic force pushes the hinge bar to rotate around the hinge point and drives the push rod to slide along the inclined surface of the wedge block, so that the hinge bar drives the card block to move away from the installation frame, thereby releasing the fixation of the installation frame, so that the installation frame, the dustproof net and the test chassis are separated, which is convenient for cleaning the dustproof net, and the operation is simple and the disassembly and assembly are convenient.

[0017] 2. This universal test device for airborne avionics products can protect the display screen and connector panel through the protective cover to prevent dust and the like from entering the interface of the connector panel, thereby improving the service life. By pushing the protective cover to slide along the inner wall of the slide groove and detach from the test chassis, the connector panel is exposed, which is convenient for connecting the wiring terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a front view of the utility model with the protective cover removed;

[0021] Figure 3 It is a front cross-sectional view of the utility model;

[0022] Figure 4 It is a partial top view of the utility model.

[0023] In the figure: 1. test chassis; 2. installation frame; 3. dust screen; 4. fixing mechanism; 41. installation slot; 42. hinge strip; 43. clamping block; 44. spring 1; 45. push rod; 46. spring 2; 47. wedge block; 48. pull rod; 5. positioning baffle; 6. connector panel; 7. display screen; 8. protective cover; 9. finger groove; 10. slide groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] like Figure 1-4 As shown, the utility model provides a universal test device for airborne avionics products, including a test chassis 1, a mounting frame 2 is arranged on the back of the test chassis 1, a mounting hole is opened on the back of the test chassis 1, the mounting frame 2 is inserted into the mounting hole, a dustproof net 3 is fixedly connected to the inner wall of the mounting frame 2, two positioning baffles 5 are relatively fixedly connected to the inner wall of the back of the test chassis 1, and the front of the mounting frame 2 is in contact with the back of the positioning baffle 5, the mounting frame 2 can be quickly blocked and positioned by the arranged positioning baffle 5, so as to facilitate the rapid installation of the mounting frame 2 and the dustproof net 3, and a fixing mechanism 4 is arranged on the test chassis 1; the fixing mechanism 4 includes: a mounting groove 41, the mounting groove 41 is opened on the inner wall of the back of the test chassis 1, the inner wall of the mounting groove 41 is hinged with a hinge strip 42, a clamping block 43 is fixedly connected to the lower left side of the hinge strip 42, the clamping block 43 is clamped with the mounting frame 2, a clamping groove is opened on the right side of the mounting frame 2, the clamping block 43 is clamped in the clamping groove, and a spring is fixedly connected to the upper right side of the hinge strip 42 Spring 1 44, and the right end of spring 1 44 is fixedly connected to the inner wall of the mounting groove 41, a push rod 45 is fixedly connected to the upper front of the hinge strip 42, a spring 2 46 is fixedly connected to the inner wall of the mounting groove 41, a wedge block 47 is fixedly connected to the front end of the spring 2 46, and the inclined surface of the wedge block 47 is fitted with the left end of the push rod 45, a pull rod 48 is fixedly connected to the back of the wedge block 47, and the rear end of the pull rod 48 penetrates the test chassis 1 and extends backward, and the number of the fixing mechanism 4 is two groups, two groups The fixing mechanism 4 is arranged relatively to each other, and the wedge block 47 is driven to move and compress the spring 2 46 by pulling the pull rod 48. At the same time, the elastic force of the spring 1 44 pushes the hinge bar 42 to rotate around the hinge point and drives the push rod 45 to slide along the inclined surface of the wedge block 47, so that the hinge bar 42 drives the clamping block 43 to move away from the installation frame 2, thereby releasing the fixation of the installation frame 2, so that the installation frame 2 and the dustproof net 3 are separated from the test chassis 1, which is convenient for cleaning the dustproof net 3, and the operation is simple and the disassembly and assembly are convenient.

[0027] In this embodiment, the wedge block 47 is driven to move and compress the spring 2 46 by pulling the pull rod 48. At the same time, the elastic force of the spring 1 44 pushes the hinge bar 42 to rotate around the hinge point and drives the push rod 45 to slide along the inclined surface of the wedge block 47. The hinge bar 42 drives the clamping block 43 to move away from the installation frame 2, thereby releasing the fixation of the installation frame 2, so that the installation frame 2 and the dustproof net 3 are separated from the test chassis 1, which is convenient for cleaning the dustproof net 3, and the operation is simple and the disassembly and assembly are convenient.

[0028] Example 2

[0029] like Figure 1-4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a connector panel 6 is provided on the left side of the front of the test chassis 1, a display screen 7 is embedded on the right side of the front of the test chassis 1, and a test module is provided inside the test chassis 1. By connecting the wiring terminals to the interface of the connector panel 6, the test module tests the airborne avionics products, and the test data is displayed on the display screen 7. A protective cover 8 is slidably connected to the front of the test chassis 1, and a finger groove 9 is provided on the front of the protective cover 8. The protective cover 8 can protect the display screen 7 and the connector panel 6 to prevent dust from entering the interface of the connector panel 6, thereby improving the service life. Two slide grooves 10 are provided on the front of the test chassis 1, and the top of each slide groove 10 is opened. The protective cover 8 is set in a "U" shape and is slidably connected in the slide groove 10. By pushing the protective cover 8 to slide along the inner wall of the slide groove 10 and detach from the test chassis 1, the connector panel 6 is exposed, which is convenient for connecting the wiring terminals.

[0030] In this embodiment, the protective cover 8 is provided to protect the display screen 7 and the connector panel 6, preventing dust and the like from entering the interface of the connector panel 6, thereby improving the service life. The protective cover 8 is pushed to slide along the inner wall of the slide groove 10 and detach from the test chassis 1, thereby exposing the connector panel 6 and facilitating the connection of the wiring terminals.

[0031] The following is a detailed description of the working principle of this universal test device for airborne avionics products.

[0032] like Figure 1-4 As shown, when in use, the wedge block 47 is driven to move and compress the spring 2 46 by pulling the pull rod 48, and at the same time, the spring 1 44 itself acts to push the hinge bar 42 to rotate around the hinge point and drive the push rod 45 to slide along the inclined surface of the wedge block 47, so that the hinge bar 42 drives the block 43 to move away from the installation frame 2, thereby releasing the fixation of the installation frame 2, so that the installation frame 2 and the dustproof net 3 are separated from the test chassis 1, which is convenient for cleaning the dustproof net 3. The protective cover 8 provided can protect the display screen 7 and the connector panel 6 to prevent dust and the like from entering the interface of the connector panel 6. By putting a finger into the finger groove 9 and pushing the protective cover 8 to make it slide along the inner wall of the slide groove 10 and detach from the test chassis 1, the connector panel 6 is exposed, which is convenient for connecting the wiring terminals.

Claims

1. A universal test device for airborne avionics products, comprising a test box (1), characterized in that: The back of the test box (1) is provided with a mounting frame (2), the inner wall of the mounting frame (2) is fixedly connected with a dustproof net (3), and the test box (1) is provided with a fixing mechanism (4); The fixing mechanism (4) comprises: a mounting groove (41), the mounting groove (41) being provided on the inner wall of the back side of the test case (1), the inner wall of the mounting groove (41) being hinged with a hinge bar (42), a clamping block (43) being fixedly connected to the lower left side of the hinge bar (42), the clamping block (43) being clamped with the mounting frame (2), a spring 1 (44) being fixedly connected to the upper right side of the hinge bar (42), and the right end of the spring 1 (44) being connected to the mounting groove (41). The inner wall is fixedly connected, a push rod (45) is fixedly connected to the upper front of the hinge strip (42), a spring 2 (46) is fixedly connected to the inner wall of the mounting groove (41), a wedge block (47) is fixedly connected to the front end of the spring 2 (46), and the inclined surface of the wedge block (47) is in contact with the left end of the push rod (45), a pull rod (48) is fixedly connected to the back of the wedge block (47), and the rear end of the pull rod (48) passes through the test chassis (1) and extends backward.

2. The universal test device for airborne avionics products according to claim 1, characterized in that: A connector panel (6) is provided on the left side of the front of the test box (1), and a display screen (7) is embedded on the right side of the front of the test box (1).

3. The universal test device for airborne avionics products according to claim 1, characterized in that: A card slot is provided on the right side of the installation frame (2), and the card block (43) is card-engaged in the card slot.

4. The universal test device for airborne avionics products according to claim 1, characterized in that: Two positioning baffles (5) are relatively fixedly connected to the inner wall of the back side of the test box (1), and the front side of the installation frame (2) is in contact with the back side of the positioning baffles (5).

5. The universal test device for airborne avionics products according to claim 1, characterized in that: A protective cover (8) is slidably connected to the front of the test box (1), and a finger groove (9) is provided on the front of the protective cover (8).

6. The universal test device for airborne avionics products according to claim 5, characterized in that: The front of the test case (1) is provided with two slide grooves (10), and the top of each of the slide grooves (10) is open. The protective cover (8) is arranged in a "U" shape and is slidably connected in the slide groove (10).

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