Locking tool for tightening in narrow space

Abstract

The utility model discloses a locking tool for tightening in a narrow space, which comprises a tightening head equipped with a plurality of aviation electric connectors with different specifications and sizes respectively suitable for clamping the aviation electric connectors with different specifications. The tightening head is composed of a group of semi-arc buckles which are in butt joint with each other to form an annular clamping frame, and an inner dodecagonal clamping face used for locking aviation electric connectors of different specifications is formed on the inner wall of the annular clamping frame on the tightening head. Locking assemblies used for buckling the two semi-arc-shaped buckles are arranged at the butt joint positions of the two semi-arc-shaped buckles correspondingly. Rotation control assemblies for driving the tightening head to rotate in the circumferential direction to tighten or loosen the aviation electric connector are arranged on the two opposite sides of the two semi-arc-shaped buckles correspondingly. The screwing heads of different specifications and sizes are controlled through the rotation control assembly, corresponding aviation electric connectors are screwed or loosened, and effective replacement, installation and fixation of the aviation electric connectors are achieved.

Description

Technical Field

[0001] The utility model relates to the fixed connection technology of electrical connectors in aviation, and particularly to a locking tool for tightening in a narrow space.

Background Art

[0002] With the rapid development of the aviation industry, electrical connectors are more and more widely used on aircraft; their performance and reliability are directly related to the flight safety of the aircraft.

[0003] In the aviation field, there are various fixing methods for electrical connectors to ensure their reliability and safety under extreme conditions. The fixing methods of electrical connectors mainly include threaded connection, bayonet (quick) connection, snap-lock connection, push-pull connection, direct plug-in connection, etc. However, due to the space limitation on the aircraft, electrical connectors are often installed in a limited space, and traditional electrical connector tightening tools cannot effectively operate in these narrow spaces. Therefore, there is an urgent need for a tool that can effectively tighten aviation electrical connectors in a narrow space.

Content of the Utility Model

[0004] The utility model provides a locking tool for tightening in a narrow space, which can effectively complete operations in the space and improve the tightening efficiency and quality.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A locking tool for tightening in a narrow space, used for the fixed connection of aviation electrical connectors, includes a tightening head, and the tightening head is equipped with a plurality of different specifications and sizes respectively suitable for clamping different specifications of aviation electrical connectors;

[0007] The tightening head is composed of a group of two semi-circular buckles that are butted against each other to form an annular card frame, and an inner 12-sided card surface for locking different specifications of aviation electrical connectors is formed on the inner wall of the annular card frame of the tightening head;

[0008] Locking components for buckling between the two are respectively arranged at the butting positions of the two semi-circular buckles;

[0009] Rotating control components for driving the tightening head to rotate circumferentially to tighten or loosen the aviation electrical connector are respectively arranged on the opposite sides of the two semi-circular buckles.

[0010] Preferably, the rotating control component includes two handles and two connecting rods. The tail end of each connecting rod is connected with a handle for manual control and holding by the user, and a through-hole for sleeved installation is arranged at the head end of each connecting rod;

[0011] On opposite sides of the two semi-circular snap fasteners, there are two symmetrically distributed lug slots for fixedly connecting the end parts of the two connecting rods respectively. A fixing bolt is threadedly connected to the lug blocks corresponding to both sides of each lug slot. The head end of each connecting rod is connected to the fixing bolt between the lug slots through a through-hole.

[0012] The connecting rod is used for the support connection and torque transmission between the handle and the lug slot, and drives the tightening head to tighten or loosen the aviation electrical connector circumferentially through the handle and the connecting rod.

[0013] Preferably, the locking assembly includes a magic tape and two locking through-holes respectively protruding from the outer walls of the semi-circular snap fasteners on both sides of the docking part. The magic tape passes through the locking through-holes on both sides of the docking part and fastens and locks the two semi-circular snap fasteners after docking by means of high-strength adhesion.

[0014] Preferably, the docking part of the two semi-circular snap fasteners is a stepped surface that is misaligned and docked with each other.

[0015] The beneficial effects of the present utility model are as follows:

[0016] Since the tightening head is composed of a set of two semi-circular snap fasteners that are docked with each other to form a circular clamping frame, the two semi-circular snap fasteners can be conveniently inserted into the internal space of the machine body after disassembly, and can effectively operate in the space, improving the tightening efficiency and quality; and multiple tightening heads of different specifications can be equipped to be suitable for clamping aviation electrical connectors of different specifications; the entire locking tool has a simple structure and is easy to use, reducing the operation difficulty and error rate.

Description of the Drawings

[0017] Figure 1 is the front view three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 is the side view three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 3 is the enlarged structure schematic diagram of the connecting rod in the present utility model;

[0020] Figure 4 is the three-dimensional structure schematic diagram of the tightening head in the present utility model.

Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] A locking tool for tightening in a narrow space, as Figures 1 to 4 shown, for the fixed connection of an aviation electrical connector, including a tightening head 1. The tightening head 1 is equipped with a plurality of different specifications and sizes, respectively suitable for clamping aviation electrical connectors of different specifications. The tightening head 1 is composed of a set of two semi-circular buckles (1a, 1b) that are butted against each other to form a circular ring-shaped card frame. An inner 12-sided card surface 2 for locking aviation electrical connectors of different specifications is formed on the inner wall of the circular ring-shaped card frame of the tightening head I. The butting part of the two semi-circular buckles (1a, 1b) is a stepped surface 3 that is butted in a staggered manner. A locking component 4 for buckling between the two is provided at the butting part of the two semi-circular buckles (1a, 1b). The locking component 4 includes a magic tape (not shown in the figure) and two locking through holes 40 that protrude from the outer walls of the semi-circular buckles on both sides of the butting part respectively. The magic tape passes through the locking through holes 40 on both sides of the butting part and buckles and locks the two semi-circular buckles (1a, 1b) by means of high-strength adhesion. Rotation control components 5 for driving the tightening head 1 to rotate circumferentially to tighten or loosen the aviation electrical connector are respectively provided on the opposite sides of the two semi-circular buckles.

[0023] Continue as Figures 1 to 4 shown. The rotation control component 5 includes two handles 50 and two connecting rods 51. The tail end of each connecting rod 51 is connected with a handle 50 for manual control and holding by the user. A through-hole 510 for sleeved installation is provided at the head end of each connecting rod 51. Two lug grooves 6 that are symmetrically distributed and used for respectively fixedly connecting the end parts of the two connecting rods are provided on the opposite sides of the two semi-circular buckles. A fixing bolt 7 is threadedly connected to the lug blocks corresponding to both sides of each lug groove 6. The head end of each connecting rod 51 is connected to the fixing bolt 7 between the lug grooves 6 through the through-hole 510. The connecting rod 51 is used for the support connection and torque transmission between the handle 50 and the lug groove 6, and drives the tightening head 1 to tighten or loosen the aviation electrical connector circumferentially through the handle 50 and the connecting rod 51.

[0024] In this embodiment, the tightening head can be equipped with multiple models of different specifications, which are suitable for clamping aviation electrical connectors of different specifications. Moreover, the tightening head is composed of two semi-circular buckles that are butted against each other to form a circular clamping frame. After disassembly, it can be conveniently inserted into the internal space of the fuselage to sleeve the aviation electrical connector, enabling effective operation in the space, improving the tightening efficiency and quality, and effectively reducing the operation difficulty and error rate. Furthermore, in some areas with extremely narrow space, the connecting rod on the rotation control component can be abandoned. After the tightening head is quickly fixed, by using the lug grooves and fixing bolts on the opposite sides of the two semi-circular buckles, the fingers of both hands can respectively move the lug grooves and fixing bolts on one side, so as to achieve the effect of transmitting torque, and then the electrical connector can be tightened or loosened.

[0025] The above-described embodiments are only preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Any equivalent changes made according to the shape, structure, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A locking tool for tightening in a narrow space, used for fixed connection of aviation electrical connectors, characterized in that: It includes a tightening head, which is equipped with a plurality of different sizes and specifications and is respectively suitable for clamping aviation electrical connectors of different specifications; The tightening head is composed of a group of two semicircular arc buckles that are connected to each other to form a circular clamping frame, and the inner wall of the circular clamping frame on the tightening head is formed with an inner 12-sided clamping surface for locking aviation electrical connectors of different specifications; The butt joints of the two semicircular arc buckles are respectively provided with locking components for buckling the two; The two opposite sides of the two semicircular arc buckles are respectively provided with a rotation control component for driving the tightening head to rotate circumferentially to tighten or loosen the aviation electrical connector.

2. A locking tool for tightening in a narrow space according to claim 1, characterized in that: The rotation control assembly includes two handles and two connecting rods, the tail end of each connecting rod is connected to a handle for a user to manually hold, and the head end of each connecting rod is provided with a sleeve hole for sleeve installation; Two symmetrically distributed lug grooves are provided on opposite sides of the two semicircular arc buckles for respectively fixing and connecting the ends of the two connecting rods. A fixing bolt is threadedly connected to the lug blocks corresponding to the two sides of each lug groove, and the head end of each connecting rod is connected to the fixing bolt between the lug grooves through a sleeve hole; The connecting rod is used for supporting and connecting the handle and the lug groove and transmitting torque. The tightening head is driven circumferentially to tighten or loosen the aviation electrical connector through the handle and the connecting rod.

3. A locking tool for tightening in a narrow space according to claim 1, characterized in that: The locking assembly includes Velcro and two locking through holes respectively protruding from the outer walls of the semicircular arc buckles on both sides of the docking point. The Velcro is passed through the locking through holes on both sides of the docking point and the two semicircular arc buckles are docked and locked by high-strength adhesion.

4. A locking tool for tightening in a narrow space according to claim 1, characterized in that: The joint between the two semicircular arc buckles is a step surface that is staggered and joined to each other.

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