Helicopter fire alarm plug connecting line maintenance tool

Abstract

The utility model discloses a helicopter fire alarm plug connecting line maintenance tool, comprising a core column screw rod, the core column screw rod comprises a core column segment on which a cable wave-proof sleeve is sleeved, a screw rod segment arranged at one end of the core column segment, and a stop segment arranged at the other end of the core column segment to stop a bushing assembly; the sleeve is sleeved on the core column section; the pressing piece is detachably connected with the screw rod section so as to enable the sleeve to abut against the stopping section; and a gap for accommodating a cable wave-proof sleeve is arranged between the core column section and the sleeve. According to the helicopter fire alarm plug connecting line maintenance tool provided by the utility model, the core column screw rod, the sleeve and the pressing piece are arranged, so that the lining assembly and the cable wave-proof sleeve are connected and fixed, the use requirements are met, the fire alarm plug connecting line is maintained, the operation is simple, the whole set of fire alarm plug connecting line does not need to be replaced, and the maintenance cost is reduced. And on the premise of ensuring the product quality, the working efficiency is improved, the repair cost is reduced, and the production progress is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of fire alarm connector wiring. More specifically, this utility model relates to a maintenance fixture for helicopter fire alarm connector wiring. Background Technology

[0002] During the repair of a certain type of helicopter, the fire alarm connector wiring needs to be inspected and repaired, and damaged fire alarm connector wiring needs to be replaced. For the vulnerable part of the helicopter fire alarm connector wiring, the connection between the bushing assembly and the cable anti-surge sleeve is damaged. The current repair method is to directly replace the entire fire alarm connector wiring set. However, due to manufacturing differences, there is no interchangeability, and no individually replaceable parts are available. Therefore, it is impossible to find suitable new parts for replacement, and the long procurement cycle forces the repair time to be extended, making it difficult to guarantee production schedule and increasing production costs. To ensure product quality, improve work efficiency, reduce repair costs, and guarantee production schedule, it is necessary to develop a repair tooling for the fire alarm connector wiring of this type of helicopter to meet the helicopter equipment repair needs. Utility Model Content

[0003] One object of this invention is to solve the above-mentioned problems and / or defects, and to provide the advantages that will be described later.

[0004] To achieve these objectives and other advantages of this utility model, a maintenance fixture for a helicopter fire alarm plug connection cable is provided. The fire alarm plug connection cable includes: a cable anti-wave sleeve and a bushing assembly connected to one end of the cable anti-wave sleeve. The fixture includes: a core column screw rod, wherein the core column screw rod includes: a core column section for the cable anti-wave sleeve to be fitted thereon, a screw section disposed at one end of the core column section, and a stop section disposed at the other end of the core column section to stop the bushing assembly.

[0005] It also includes: a sleeve fitted onto the core column section;

[0006] A clamping element that is detachably connected to the screw section to press the sleeve against the stop section;

[0007] A gap is provided between the core section and the sleeve to accommodate the cable anti-wave sleeve.

[0008] Preferably, the side where the stop section connects to the core column section is provided with a tapered boss that is compatible with the bushing assembly;

[0009] The sleeve has a flared opening near the stop section that is compatible with the bushing assembly.

[0010] Preferably, the clamping element is configured as a disc nut.

[0011] Preferably, the stop section has a rectangular boss at the end away from the core column section for easy gripping and fixing.

[0012] Preferably, the maximum diameter of the opening at the end of the sleeve near the stop section is smaller than the maximum diameter of the bushing assembly.

[0013] This utility model has at least the following beneficial effects: by setting a core screw, sleeve and clamping parts, the bushing assembly and the cable anti-wave sleeve are clamped and fixed, and then enter the solder pot for welding and cooling to complete the connection and fixation, so that it meets the usage requirements and completes the maintenance of the fire alarm plug connection wire. The operation is simple and there is no need to replace the entire fire alarm plug connection wire. While ensuring product quality, it improves work efficiency, reduces repair costs and ensures production progress.

[0014] Other advantages, objectives and features of this invention will be apparent in part from the description which follows, and in part from the understanding of those skilled in the art through study and practice of this invention. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a helicopter fire alarm plug connection cable maintenance tool in one embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the clamping component of the helicopter fire alarm plug connection cable maintenance tool in one embodiment of the present invention;

[0017] Figure 3 This is a cross-sectional view of a fire alarm plug connection wire according to an embodiment of the present invention.

[0018] The markings in the diagram are: 1. Clamping component, 11. Baffle plate, 12. Convex ring, 13. Elastic component, 14. Limiting plate, 141. Circular groove, 2. Core column screw, 21. Screw section, 22. Core column section, 23. Stop section, 231. Conical boss, 232. Rectangular boss, 3. Sleeve, 31. Trumpet mouth, 4. Cable anti-wave sleeve, 5. Bushing assembly, 51. Inner bushing, 52. Outer bushing. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0020] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not list the presence or addition of one or more other elements or combinations thereof.

[0021] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of 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, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] Example 1

[0025] A maintenance fixture for helicopter fire alarm connector cables, the structure of which is as follows: Figure 1-2 As shown, the fire alarm plug connection wire includes: a cable anti-surge sleeve 4 and a bushing assembly 5 connected to one end of the cable anti-surge sleeve 4. The tooling includes: a core screw 2. The core screw 2 includes: a core section 22 for the cable anti-surge sleeve 4 to be fitted on it, a screw section 21 disposed at one end of the core section 22, and a stop section 23 disposed at the other end of the core section 22 to stop the bushing assembly 5.

[0026] It also includes: a sleeve 3 fitted onto the core column section 22;

[0027] A clamping member 1 is detachably connected to the screw section 21 to press the sleeve 3 against the stop section 23;

[0028] A gap is provided between the core column section 22 and the sleeve 3 to accommodate the cable anti-wave sleeve 4.

[0029] In practical applications, this fixture needs to be used in conjunction with a soldering pot and anhydrous ethanol; for example Figure 3 As shown, the bushing assembly 5 includes: an inner bushing 51 fitted inside the cable wave-damping sleeve 4 and an outer bushing 52 fitted outside the cable wave-damping sleeve 4; both the inner bushing 51 and the outer bushing 52 have notches at their bottoms; the cable wave-damping sleeve 4 has the following specifications: T2XP-6~10mm. An elastic element 13 is provided at the contact point between the clamping member 1 and the sleeve 3 to prevent excessive pressure from the clamping member 1 on the sleeve 3, which could cause deformation of the bushing assembly 5. The elastic element 13 is configured as a spring. A convex ring 12 is provided on the connection surface between the clamping member 1 and the elastic element 13 to prevent excessive compression of the elastic element 13. A limiting plate 14 is provided at the end of the elastic element 13 near the sleeve 3 to contact and abut against the sleeve 3. When the clamping member 1 is rotated to clamp the inner bushing 51, the outer bushing 52 and the cable anti-surge sleeve 4, the magnitude of the abutting force can be judged by observing the distance between the limiting plate 14 and the convex ring 12 to determine whether to continue clamping, thus preventing excessive pressure from the clamping member 1 on the sleeve 3 and causing deformation of the bushing assembly 5. The bottom of the limiting plate 14 is provided with a circular groove 141 that matches the sleeve 3 to maintain the stability of the elastic element 13 during clamping and prevent its position from shifting, which could cause changes in the abutting force. A baffle plate 11 is provided below the clamping member 1; the baffle plate 11 can effectively prevent solder from splashing onto the clamping member 1 used for gripping.

[0030] Working principle: The specific operation process is as follows:

[0031] 1. Place the cleaned and tin-plated inner bushing 51 onto the lower stop section 23 of the core screw 2, place the cable anti-wave sleeve 4 into the sleeve 3, with its lower end fitted onto the inner bushing 51, and then fit the outer bushing 52 onto the cable anti-wave sleeve 4.

[0032] 2. Adjust and align the notch marks on the inner and outer bushings 52, tighten the clamping part 1, and use the pressure of the sleeve 3 and the core screw 2 to clamp the cable anti-wave sleeve 4 with the inner bushing 51 and the outer bushing 52.

[0033] 3. Place the fixed repair fixture into the solder pot for soldering;

[0034] 4. Cool the soldered fire alarm plug connection wires in anhydrous ethanol;

[0035] 5. Loosen clamping part 1, remove the welded bushing assembly 5 and cable anti-wave sleeve 4, and complete the fire alarm plug connection line repair.

[0036] By setting up the core screw 2, sleeve 3 and clamping part 1, the bushing assembly 5 and the cable anti-wave sleeve 4 are clamped and fixed, and then enter the solder pot for welding and cooling to complete the connection and fixation, so that it meets the usage requirements and completes the maintenance of the fire alarm plug connection wire. The operation is simple and does not require the replacement of the entire fire alarm plug connection wire. While ensuring product quality, it improves work efficiency, reduces repair costs and ensures production progress.

[0037] Example 2

[0038] This second embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 1 As shown, based on embodiment 1, the following improvement is disclosed: the stop section 23 is provided with a tapered boss 231 adapted to the bushing assembly 5 on the side where it connects with the core column section 22.

[0039] The sleeve 3 is provided with a flared opening 31 at one end near the stop section 23, which is adapted to the bushing assembly 5.

[0040] Working principle: The tapered boss 231 and the flared mouth 31 are set to fit the shape of the bushing assembly 5. When the bushing assembly 5 is placed in it, precise positioning is achieved, ensuring that the bushing assembly 5 is subjected to uniform force. During soldering, the soldering of each part is uniform and no displacement occurs.

[0041] Example 3

[0042] This third embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 1 As shown, based on embodiment 1, the following improvement is disclosed: the clamping member 1 is configured as a disc nut.

[0043] Working principle: The disc-shaped nut makes it easy for maintenance personnel to hold and rotate, reducing labor intensity.

[0044] Example 4

[0045] This embodiment 4 is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 1 As shown, based on embodiment 1, the following improvement is disclosed: the stop section 23 is provided with a rectangular boss 232 at the end away from the core column section 22 for easy gripping and fixing.

[0046] Working principle: The rectangular boss 232 is designed to facilitate gripping, especially when the rotating clamping part 1 clamps the inner bushing 51, outer bushing 52 and cable anti-slip sleeve 4. Its design facilitates force distribution and prevents slippage when gripping.

[0047] Example 5

[0048] This fifth embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 1As shown, based on embodiment 1, the following improvement is disclosed: the maximum diameter of the opening at the end of the sleeve 3 near the stop section 23 is smaller than the maximum diameter of the bushing assembly 5.

[0049] Working principle: The maximum diameter of the opening of the sleeve 3 is smaller than the maximum diameter of the bushing assembly 5, so that the sleeve 3 does not completely wrap the bushing assembly 5 after being pressed tightly by the clamping part 1 and closely attached to it. This ensures that the sleeve 3 does not block the soldering part of the bushing assembly 5 and guarantees the soldering effect.

[0050] The above solutions are merely illustrative examples of preferred embodiments, but are not limited thereto. When implementing this invention, appropriate substitutions and / or modifications can be made according to the user's needs.

[0051] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0052] Although embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.

Claims

1. A helicopter fire warning plug connector repair kit, the fire warning plug connector comprising: A cable waveproof sleeve and a bushing assembly connected to one end of the cable waveproof sleeve, the tooling including: a core column screw, characterized in that the core column screw includes: a core column section for the cable waveproof sleeve to be fitted thereon, a screw section disposed at one end of the core column section, and a stop section disposed at the other end of the core column section to stop the bushing assembly; It also includes: a sleeve fitted onto the core column section; A clamping element that is detachably connected to the screw section to press the sleeve against the stop section; A gap is provided between the core section and the sleeve to accommodate the cable anti-wave sleeve.

2. The helicopter fire plug connection service kit of Claim 1, wherein, The stop section is provided with a tapered boss on the side where it connects to the core column section, which is adapted to the bushing assembly. The sleeve has a flared opening near the stop section that is compatible with the bushing assembly.

3. The helicopter fire plug connection service kit of Claim 1, wherein, The clamping element is configured as a disc nut.

4. The helicopter fire plug connection service kit of Claim 1, wherein, The stop section has a rectangular boss at the end away from the core column section for easy gripping and fixing.

5. The helicopter fire plug connection service kit of Claim 1, wherein, The maximum diameter of the opening at the end of the sleeve near the stop section is smaller than the maximum diameter of the bushing assembly.

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