Angle-oscillatable screw and engine part repair kit

Abstract

The utility model relates to the technical field of aircraft engine maintenance, disclose a screw rod and engine part repair harness of swing angle, the screw rod includes: first rod, second rod, connecting piece, connecting piece is used for connecting first rod, second rod, harness includes screw rod, b end baffle, nut, a end baffle. The utility model simple structure, convenient processing, the installation and dismounting step are brief, can save a lot of dismounting time, first rod, second rod rivet by rivet, avoided dismounting, also can prevent individual part loss, strong universality, the provided repair harness can be used to less than 90 DEG inclination angle's installation, is suitable for the repair work of the multi -specification part to be repaired, need not extra increase external adapter, the part used is all standard piece assembly, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of aircraft engine maintenance technology, specifically, to a screw with an adjustable angle and a protective device for repairing engine parts. Background Technology

[0002] Due to the harsh operating conditions and prolonged operation of the engine, the paint / protective coating on the outer surface of the machine's parts may peel off, shortening the lifespan of the parts. Therefore, it is necessary to repair the damaged outer surface of the parts. When repairing the outer surface of a product, it is necessary to protect the inner surface as well. However, some tubular products have irregular shapes, with misaligned inlets and outlets, making it impossible to secure the protective end plate with ordinary bolts and nuts. Furthermore, adding a pressure plate to the outside of the product to secure the end plate not only increases costs but also causes the pressure plate to obstruct the repair tools during repair, resulting in the spray gun not being able to completely cover the outer surface, leading to product repair failure or poor repair results. Utility Model Content

[0003] The purpose of this invention is to provide a screw with an adjustable angle and a repair tool for engine parts, which solves the problems of high cost and poor repair effect when repairing irregular parts using existing processes.

[0004] This utility model is achieved through the following technical solution: a screw with an adjustable swing angle, comprising: The first rod has a first rod connecting end and a fixing head at both ends; The second rod has a connecting end and a connecting thread at both ends; A connector is used to connect the first rod and the second rod, and the connector is rotatably connected to the connecting end of the first rod and the connecting end of the second rod, respectively.

[0005] To better realize this utility model, the connecting member is further described as a rivet.

[0006] To better realize this utility model, the fixing head is further configured as an external hexagon and / or an internal hexagon.

[0007] To better realize this utility model, further, with the first rod as the reference, the deflection angle range of the second rod is -90° to 90°.

[0008] An engine parts repair protective device, comprising: The aforementioned type of screw with an adjustable swing angle; The b-end blocking plate is sleeved on the first rod and is limited by the fixed head; The nut is connected to the connecting thread on the second rod; The end plate is sleeved on the second rod and is limited by the nut.

[0009] Compared with the prior art, this utility model has the following advantages and beneficial effects: (1) This utility model has a simple structure and is easy to process; the installation and disassembly steps are simple; it can save a lot of disassembly and assembly time; (2) The first and second rods are riveted together, which avoids disassembly and also prevents individual parts from being lost; (3) This utility model has strong versatility. The repair guard provided can be used for installation at an angle of less than 90° and is applicable to repair work of parts of various specifications. (4) This utility model does not require additional external adapters, and all parts used are standard parts assembled, so the cost is low. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a swingable screw structure.

[0011] Figure 2 This is a schematic diagram of the structure of the part to be repaired.

[0012] Figure 3 A schematic diagram of the structure for repairing protective gear.

[0013] Wherein: 10-First rod; 11-First rod connecting end; 12-Fixing head; 20-Second rod; 21-Second rod connecting end; 22-Connecting thread; 30-Connecting piece; 41-B end blocking plate; 42-A end blocking plate; 43-Nut; 50-Part to be repaired. Detailed Implementation

[0014] 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.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0016] Example 1:

[0017] This embodiment provides a screw with an adjustable swing angle, specifically as follows: Figure 1 As shown, it includes: The first rod 10 has a first rod connecting end 11 and a fixing head 12 respectively provided at both ends of the first rod 10; The second rod 20 has a second rod connecting end 21 and a connecting thread 22 at both ends; The connector 30 is used to connect the first rod 10 and the second rod 20. The connector 30 is rotatably connected to the first rod connection end 11 and the second rod connection end 21, respectively.

[0018] Furthermore, the connector 30 can be a rivet or a small-diameter bolt. The fixing head 12 is configured as an external hexagon and / or internal hexagon, facilitating its positioning using a wrench or appropriate tools. Based on the first rod 10, the deflection angle range of the second rod 20 is -90° to 90°, thus adapting to different bending angles of the parts 50 to be repaired, improving versatility, and also facilitating the insertion of the screw into the parts 50 to be repaired.

[0019] Example 2:

[0020] This embodiment provides an engine parts repair protective device based on the above embodiments, specifically as follows: Figure 3 As shown, it includes: The above embodiments provide a screw with an adjustable swing angle; b-end blocking plate 41 is sleeved on the first rod 10 and is limited by the fixing head 12; Nut 43 is connected to the connecting thread 22 on the second rod 20; End plate 42 is sleeved on the second rod 20 and is limited by the nut 43.

[0021] When using this protective device, first, place the b-end blocking plate 41 onto the second rod 20, and then slide the b-end blocking plate 41 onto the first rod 10; then insert the second rod 20 into the b-end of the part to be repaired 50 until the second rod 20 protrudes from the a-end of the part to be repaired 50, and then place the a-end blocking plate 42 onto the second rod 20, and finally screw the nut 43 onto the connecting thread 22; then adjust the positions of the b-end blocking plate 41 and the a-end blocking plate 42 so that the b-end blocking plate 41 covers the b-end of the part to be repaired 50, and the a-end blocking plate 42 covers the a-end of the part to be repaired 50, and then fully tighten the nut 43 so that the b-end blocking plate 41 and the a-end blocking plate 42 completely seal both ends of the part to be repaired 50, and then the repair work on the outer surface of the part to be repaired 50 can begin.

[0022] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A screw with an adjustable swing angle, characterized in that, include: The first rod (10) has a first rod connecting end (11) and a fixing head (12) respectively at both ends; The second rod (20) has a second rod connecting end (21) and a connecting thread (22) at both ends; A connector (30) is used to connect the first rod (10) and the second rod (20), and the connector (30) is rotatably connected to the first rod connection end (11) and the second rod connection end (21) respectively.

2. The oscillating screw according to claim 1, characterized in that: The connector (30) is a rivet or a bolt.

3. The oscillating screw according to claim 1, characterized in that: The fixing head (12) is configured as an external hexagon and / or an internal hexagon.

4. A screw with an adjustable swing angle according to claim 1, characterized in that: With the first rod (10) as the reference, the deflection angle range of the second rod (20) is -90° to 90°.

5. A protective device for repairing engine parts, characterized in that, include: A screw with an adjustable swing angle as described in any one of claims 1-4; The b-end blocking plate (41) is sleeved on the first rod (10) and is limited by the fixing head (12); Nut (43) is connected to the connecting thread (22) on the second rod (20); The end plate (42) is sleeved on the second rod (20) and is limited by the nut (43).

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