Aircraft fire control box and pneumatic solenoid valve testing apparatus

Abstract

The utility model relates to the technical field of aircraft detection, specifically disclose a kind of aircraft fire alarm control box and air pressure solenoid valve detection equipment, including detection platform body, the one side of detection platform body is rotatably connected with closed box cover, the inner chamber of closed box cover is provided with displacement control mechanism, and the displacement control mechanism includes structure box;The utility model effectively solves the problem that existing detection equipment is difficult to adapt to different specifications wire rod due to cable storage space fixed, by setting displacement control mechanism, it can flexibly accommodate length or diameter larger special cable of multicore shielded cable, avoid forcibly bending, extruding or winding, and wire pressing mechanism is composed of vertical rod, cross bar and spring hinge, after wire rod is placed, it is automatically returned and is pressed tightly, ensure that storage is firm and tidy, handle is arranged in operation slot one side, outer ring is provided with rubber antiskid line, it is convenient for manual adjustment, and overall structure is integrated in closed box cover, and it does not occupy detection platform body functional area.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft testing technology, specifically relating to an aircraft fire alarm control box and a pressure solenoid valve testing device. Background Technology

[0002] The aircraft fire alarm control box and pneumatic solenoid valve testing equipment is mainly used for testing the output voltage of the aircraft fire alarm control box, testing the insulation resistance of the fire alarm control box cables and pneumatic solenoid valves, and judging whether the onboard equipment is functioning properly based on the test data.

[0003] Existing equipment typically uses a portable, handheld safety case as the overall platform, integrating the DC voltage measurement unit, insulation resistance measurement unit, switches, and indicator lights onto the panel. The AC transformer, DC isolation power supply module, power conditioning module, and DC 9V power supply module are mounted on the bottom liner of the case. Although the overall structure has a certain degree of integration, the test cables used with it are generally stored in a fixed storage bag inside the case cover. When the test involves long or thick special cables, such as multi-core shielded cables or high-voltage test leads, the fixed and unadjustable internal space of the storage bag makes it difficult to neatly store the cables. In some cases, the cables are forcibly bent, squeezed, or exposed and tangled, resulting in low cable storage efficiency. This low cable storage efficiency also prolongs the preparation time for a single test and reduces the overall work efficiency of field maintenance.

[0004] To address these issues, the applicant proposes an aircraft fire alarm control box and a pressure solenoid valve testing device. Utility Model Content

[0005] The purpose of this utility model is to provide an aircraft fire alarm control box and a pressure solenoid valve testing device to solve the problems in the prior art. Although the existing equipment has a high degree of integration, the testing cables are stored in a fixed bag inside the box cover, and the space is not adjustable. When dealing with long or thick cables, such as multi-core shielded cables and high-voltage test cables, they are easy to bend and tangle, making it difficult to store them neatly, reducing storage efficiency, prolonging test preparation time, and affecting the efficiency of field operations.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An aircraft fire alarm control box and a pressure solenoid valve testing device include a testing platform body. A closed cover is rotatably connected to one side of the testing platform body. A displacement control mechanism is provided in the inner cavity of the closed cover. The displacement control mechanism includes a structural box. A bidirectional lead screw is provided in the inner cavity of the structural box. Screw sleeves are fitted on both sides of the outer ring of the bidirectional lead screw. A sliding rod is fixedly connected to one side of the outer ring of the screw sleeve. Limiting slots are formed on both sides of the bottom of the inner cavity of the structural box. One end of the sliding rod passes through the inner cavity of the adjacent limiting slot and is fixedly connected to a fixed seat. A clamping frame is fixedly connected to one side of the fixed seat. An operating slot is formed on the inner wall of one side of the structural box. A wire pressing mechanism is provided on one side of the clamping frame. The wire pressing mechanism includes a vertical rod. One side of the vertical rod is rotatably connected to one side of the adjacent clamping frame by a spring hinge.

[0008] Preferably, a plurality of horizontal bars are fixedly connected to one side of the vertical bar and along the vertical direction of the vertical bar.

[0009] Preferably, one side of the structural box is fixedly connected to the inner wall of the adjacent closed box cover, and one side of the closed box cover is rotatably connected to one side of the adjacent detection platform body via a hinge.

[0010] Preferably, the two ends of the bidirectional lead screw are rotatably connected to the inner wall of the adjacent structural box via a rotating shaft, and the two threaded sleeves are symmetrically sleeved on both sides of the outer ring of the bidirectional lead screw.

[0011] Preferably, the outer ring of the bidirectional lead screw is fitted with a handle, which is located on one side of the operating through slot.

[0012] Preferably, the outer ring of the grip has a plurality of rubber anti-slip patterns fixedly connected along the circumferential direction of the grip.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This solution effectively addresses the problem of existing testing equipment being unable to accommodate different cable specifications due to fixed cable storage space. By incorporating a displacement control mechanism, it can flexibly accommodate specialized cables such as multi-core shielded cables with larger lengths or diameters, avoiding forced bending, squeezing, or tangling. The cable clamping mechanism consists of vertical rods, horizontal rods, and spring hinges, automatically returning to its original position and clamping the cable after it is placed in, ensuring stable and neat storage. The handle is located on one side of the operating channel, with rubber anti-slip texture on the outer ring for easy manual adjustment. The entire structure is integrated into a closed box cover, without occupying the functional area of ​​the testing platform itself. While improving cable storage efficiency and standardization, it shortens work preparation time, reduces the risk of cable damage and insulation performance degradation, improves field maintenance efficiency and testing reliability, extends cable lifespan, and effectively meets the needs of aviation maintenance for highly adaptable and portable testing equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structural box of this utility model;

[0017] Figure 3 This is a schematic diagram of the grip structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the crossbar structure of this utility model.

[0019] In the diagram: 1. Detection platform body; 2. Enclosed box cover; 3. Displacement control mechanism; 301. Structure box; 302. Handle; 303. Operating through slot; 304. Two-way lead screw; 305. Screw sleeve; 306. Sliding rod; 307. Limiting through slot; 308. Fixing seat; 4. Rubber anti-slip texture; 5. Clamping frame; 6. Wire pressing mechanism; 601. Vertical rod; 602. Horizontal rod; 603. Spring hinge. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1:

[0024] Please see Figure 1 - Figure 4 As shown, an aircraft fire alarm control box and a pressure solenoid valve testing device include a testing platform body 1. A closed box cover 2 is rotatably connected to one side of the testing platform body 1. A displacement control mechanism 3 is provided in the inner cavity of the closed box cover 2. The displacement control mechanism 3 includes a structural box 301. A bidirectional lead screw 304 is provided in the inner cavity of the structural box 301. Screw sleeves 305 are fitted on both sides of the outer ring of the bidirectional lead screw 304. A sliding rod 306 is fixedly connected to one side of the outer ring of the screw sleeve 305. Limiting grooves 307 are opened on both sides of the bottom of the inner cavity of the structural box 301. One end of the sliding rod 306 passes through the inner cavity of the adjacent limiting groove 307 and is fixedly connected to a fixed seat 308. A clamping frame 5 is fixedly connected to one side of the fixed seat 308. An operating groove 303 is opened on the inner wall of one side of the structural box 301. A wire pressing mechanism 6 is provided on one side of the clamping frame 5. The wire pressing mechanism 6 includes a vertical rod 601. One side of the vertical rod 601 is rotatably connected to one side of the adjacent clamping frame 5 by a spring hinge 603.

[0025] Several horizontal bars 602 are fixedly connected to one side of the vertical bar 601 and along the vertical direction of the vertical bar 601.

[0026] As can be seen from the above, when using the aircraft fire alarm control box and pneumatic solenoid valve testing equipment, the operator first completes the testing work, then performs preliminary winding and arrangement of the connecting wires used. Subsequently, based on the actual diameter and length requirements of the wires, the distance between the two clamping frames 5 is adjusted. When the wire size is large, such as a multi-core shielded cable or a high-voltage test wire, the operator applies rotational force through the handle 302, causing the bidirectional lead screw 304 to rotate synchronously. Since the threads at both ends of the bidirectional lead screw 304 are in opposite directions, the two symmetrically fitted threaded sleeves 305 on both sides of its outer ring rotate along the lead screw axis. The two sliding rods 306 move in opposite directions, causing them to slide horizontally along the limiting through groove 307 at the bottom of the structural box 301. The other end of each sliding rod 306 is fixedly connected to a fixing seat 308, which in turn is fixedly connected to the clamping frame 5. Therefore, the two clamping frames 5 move outwards synchronously, forming an adjustable-width cable storage space within the inner cavity of the closed box cover 2. At this time, the operator places the wound cable in the area formed between the two clamping frames 5 and opens the wire clamping mechanism 6 by rotating the vertical rod 601. The vertical rod 601 is connected to the spring hinge 6. 03 is rotatably connected to one side of the clamping frame 5, and several horizontal bars 602 are fixedly installed on it along the vertical direction. When the vertical bar 601 is manually lifted, the wire pressing mechanism 6 is in the open state, which facilitates the insertion of the wire. After the wire is placed in place, the vertical bar 601 is released. Under the elastic reset action of the spring hinge 603, the vertical bar 601 and the horizontal bars 602 automatically rotate back to the initial position, applying a moderate clamping force to the outside of the wire, thereby stably confining the wire in the inner cavity of the clamping frame 5. After the entire storage process is completed, the closed box cover 2 is closed. The closed box cover 2 is connected to the detection platform body through a hinge. The rotating connection ensures that the internal components are not disturbed during transportation or storage, while the rubber anti-slip texture 4 on the outer ring of the handle 302 improves the friction and feel during rotation operation and prevents slippage. The structure box 301, as the main body of the displacement control mechanism 3, is fixedly installed on the inner wall of the closed box cover 2, providing stable support for components such as the bidirectional lead screw 304, screw sleeve 305, sliding rod 306 and limiting through groove 307. The operating through groove 303 is opened on the side wall of the structure box 301, so that the operating end of the handle 302 is exposed, making it convenient for personnel to make adjustments inside the closed box cover 2.

[0027] This solution effectively solves the storage difficulties caused by fixed cable storage space in existing testing equipment, which cannot adapt to different specifications of cables. By setting up a displacement control mechanism 3 composed of a bidirectional lead screw 304, a screw sleeve 305, a sliding rod 306, a limiting through groove 307, and a fixed seat 308, stepless adjustment of the distance between the two clamping frames 5 is achieved. This allows for flexible adaptation to the storage needs of various special testing cables, such as long, thick, and multi-core cables, avoiding the forced bending, compression deformation, or exposed entanglement of cables caused by space constraints in traditional fixed storage bags. At the same time, the wire pressing mechanism 6, through the cooperation of the vertical rod 601, the horizontal rod 602, and the spring hinge 603, automatically applies a pressing force to the cable after storage, ensuring that it remains stable and neat in the inner cavity of the closed box 2. To prevent shaking, scattering, or damage during transportation, the handle 302, combined with the rubber anti-slip texture 4, enhances the convenience and reliability of manual adjustment, while the operating slot 303 ensures unimpeded adjustment. The overall structure is integrated into the closed cover 2, without occupying the main functional area of ​​the testing platform body 1, balancing functionality and portability. This improves the efficiency and standardization of cable storage, shortens preparation and organization time before and after testing, and reduces the risk of joint damage or insulation degradation due to improper cable management. As a result, it improves the overall efficiency of field maintenance operations and the reliability of testing data, while extending cable lifespan and reducing maintenance costs, effectively meeting the actual needs of the aviation maintenance field for highly adaptable and highly reliable portable testing equipment.

[0028] Example 2:

[0029] Please see Figure 1 - Figure 4 As shown, one side of the structure box 301 is fixedly connected to the inner wall of the adjacent closed box cover 2, and one side of the closed box cover 2 is rotatably connected to one side of the adjacent detection platform body 1 via a hinge.

[0030] The two ends of the bidirectional lead screw 304 are rotatably connected to the inner wall of the adjacent structural box 301 via a rotating shaft, and two threaded sleeves 305 are symmetrically sleeved on both sides of the outer ring of the bidirectional lead screw 304.

[0031] The outer ring of the double-acting lead screw 304 is fitted with a handle 302, which is located on one side of the operating through slot 303.

[0032] The outer ring of the grip 302 and along the circumference of the grip 302 are fixedly connected with several rubber anti-slip textures 4.

[0033] As can be seen from the above, the setting of several horizontal bars 602 fixedly connected to one side of the vertical bar 601 along its vertical direction ensures that when the wire pressing mechanism 6 returns to its original position under the action of the spring hinge 603 during the working process, the multiple horizontal bars 602 can form multi-point contact and pressing along the surface of the wire, achieving a uniform and stable pressing effect on cables of different diameters or stacked states, avoiding local loosening or slippage. The setting of the structural box 301 fixedly connected to the inner wall of the closed box cover 2 and the closed box cover 2 and the detection platform body 1 are connected by a hinge during the working process ensures that the displacement control mechanism 3 is stably positioned as the box cover opens and closes, without the need for additional disassembly and assembly, achieving the effect of ensuring the structural stability and smooth operation of the internal adjustment mechanism during storage and use, while also facilitating the quick opening and closing of the equipment by maintenance personnel. The setting of the two ends of the bidirectional screw 304 are rotatably connected to the inner wall of the structural box 301 through a rotating shaft, and two screw sleeves 305 are symmetrically sleeved on the outer ring of the bidirectional screw 304. The side-mounted design allows the two screw sleeves 305 to move synchronously in opposite directions when the bidirectional lead screw 304 is rotated during the operation, causing the clamping frames 5 on both sides to extend and retract at equal intervals. This achieves symmetrical adjustment of the clamping space and balanced force, effectively preventing cable misalignment or unilateral compression. The handle 302 is connected to the outer ring of the bidirectional lead screw 304 and is located on one side of the operating slot 303. During the operation, the operator can directly grip and rotate the handle 302 via the operating slot 303 to drive the bidirectional lead screw 304, achieving convenient adjustment of the clamping frame 5 spacing without disassembling components, thus improving on-site operating efficiency. The handle 302 has several rubber anti-slip textures 4 fixedly connected to its outer ring along its circumference. During the operation, when the operator rotates the handle 302, sufficient friction is generated between the hand and the rubber anti-slip textures 4, preventing slippage and improving the accuracy and comfort of manual adjustment. This is especially suitable for field operations in gloved or wet environments.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aircraft fire control box and pneumatic solenoid valve testing apparatus comprising a test platform body (1) characterised in that: A closed box cover (2) is rotatably connected to one side of the detection platform body (1). A displacement control mechanism (3) is provided in the inner cavity of the closed box cover (2). The displacement control mechanism (3) includes a structural box (301). A bidirectional lead screw (304) is provided in the inner cavity of the structural box (301). Screw sleeves (305) are fitted on both sides of the outer ring of the bidirectional lead screw (304). A sliding rod (306) is fixedly connected to one side of the outer ring of the screw sleeves (305). Limiting grooves are opened on both sides of the bottom of the inner cavity of the structural box (301). 307), one end of the sliding rod (306) is fixedly connected to a fixed seat (308) through the inner cavity of the adjacent limiting groove (307), a clamping frame (5) is fixedly connected to one side of the fixed seat (308), an operation groove (303) is opened on one side of the inner wall of the structure box (301), a wire pressing mechanism (6) is provided on one side of the clamping frame (5), the wire pressing mechanism (6) includes a vertical rod (601), one side of the vertical rod (601) is rotatably connected to one side of the adjacent clamping frame (5) by a spring hinge (603).

2. The aircraft fire alarm control box and pressure solenoid valve detection device according to claim 1, characterized in that: Several horizontal bars (602) are fixedly connected to one side of the vertical bar (601) and along the vertical direction of the vertical bar (601).

3. The aircraft fire alarm control box and pressure solenoid valve detection device according to claim 1, characterized in that: One side of the structure box (301) is fixedly connected to the inner wall of the adjacent closed box cover (2), and one side of the closed box cover (2) is rotatably connected to one side of the adjacent detection platform body (1) by a hinge.

4. The aircraft fire alarm control box and pressure solenoid valve detection device according to claim 1, characterized in that: The two ends of the bidirectional lead screw (304) are respectively rotatably connected to the inner wall of the adjacent structural box (301) through a rotating shaft, and the two threaded sleeves (305) are symmetrically sleeved on both sides of the outer ring of the bidirectional lead screw (304).

5. The aircraft fire alarm control box and pressure solenoid valve detection device according to claim 1, characterized in that: The outer ring of the bidirectional lead screw (304) is fitted with a handle (302), which is located on one side of the operating through slot (303).

6. The aircraft fire alarm control box and pressure solenoid valve detection device according to claim 5, characterized in that: The outer ring of the grip (302) and along the circumferential direction of the grip (302) are fixedly connected with a number of rubber anti-slip patterns (4).

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