Signal transfer box of avionics bus

Abstract

The utility model discloses a signal transfer box of an avionic bus, which comprises a box body, a rotary sealing plate is rotatably arranged in front of the box body, a plurality of fixing rods which are arranged at equal intervals are fixed in the box body, a first wire harness binding pipe is fixed at the top end of each fixing rod, and a second wire harness binding pipe is fixed at the bottom end of each fixing rod. A plurality of stacked second wire harness binding pipes are installed above the first wire harness binding pipe, the first wire harness binding pipe and the second wire harness binding pipes are bent in an S shape, the two ends of the first wire harness binding pipe and the two ends of the second wire harness binding pipes are parallel to the bottom face, and the middle portions of the first wire harness binding pipe and the middle portions of the second wire harness binding pipes are perpendicular to the bottom face. According to the utility model, the wire harnesses connected in the signal transfer box are arranged from top to bottom by using the first wire harness binding pipe and the second wire harness binding pipe, so that the wire harnesses in the signal transfer box are ensured to be neat and can be easily distinguished, and the difficulty of enclosing the internal circuit of the signal transfer box by a maintenance worker is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of signal transfer boxes, in particular to a signal transfer box for an avionics bus. Background Art

[0002] The "Signal Transfer Box" is a device used during the development of electronic control systems. It is primarily designed to simplify test operations, shorten test times, and successfully establish a test and diagnostic environment. By connecting the controller under test to a hardware-in-the-loop test environment, it routes signals from the corresponding channels on the front panel, facilitating observation, recording, and measurement. It can also perform on- and off-circuit tests, as well as short-circuit tests to ground and power.

[0003] However, there are many lines connected inside the existing signal transfer box, and the wire harnesses are entangled with each other. When maintaining the signal transfer box, it is impossible to clearly distinguish the wire harnesses inside the signal transfer box; therefore, it does not meet the existing needs. In this regard, we propose a signal transfer box for an avionics bus. Utility Model Content

[0004] The purpose of the present utility model is to provide a signal transfer box for an avionics bus, so as to solve the problems proposed in the above-mentioned background technology, such as the large number of wires connected inside the signal transfer box, the entanglement of the wire harnesses, and the inability to clearly distinguish the wire harnesses inside the signal transfer box when maintaining the signal transfer box.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a signal transfer box for an avionics bus, comprising a box body, a rotating sealing plate rotatably installed in front of the box body, a plurality of equally spaced fixed rods fixed inside the box body, a first wire harness restraint tube fixed to the top end of the fixed rod, a plurality of stacked second wire harness restraint tubes installed above the first wire harness restraint tube, the first wire harness restraint tube and the second wire harness restraint tube both being S-shaped, and the two ends of the first wire harness restraint tube and the second wire harness restraint tube being parallel to the bottom surface, the middle part of the first wire harness restraint tube and the second wire harness restraint tube being perpendicular to the bottom surface, a wire harness slot being provided on one side of the first wire harness restraint tube and the second wire harness restraint tube, and two symmetrically distributed limit strips being installed on the inner side of one end of the wire harness restraint tube.

[0006] Preferably, the top upper surfaces of the first and second wire harness restraining tubes are provided with splicing slots, and the bottom of the second wire harness restraining tube is fixed with a splicing block.

[0007] Preferably, the splicing block is clamped inside the splicing slot, a V-shaped groove is provided at the bottom of the splicing block, and the width of the splicing block is greater than the width of the splicing slot.

[0008] Preferably, one end of the limiting strip is bent and the bent end is arc-shaped, and the center of the arc-shaped end of the limiting strip coincides with the center of the wiring harness slot.

[0009] Preferably, two fixing bars are fixed to the inner surface of the wiring harness slot, and cylindrical pins are inserted through the ends of the fixing bars close to the limit bars. Rotating connecting bars are rotatably installed on the outer sides of the two ends of the cylindrical pins, and the rotating connecting bars are fixed to the limit bars.

[0010] Preferably, the bent end portions of the fixing bar and the limiting bar are supported and fixed with elastic support rods, and the elastic support rods are arc-shaped thin rods made of spring steel.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The present invention uses the first and second harness confinement tubes to organize the wiring harnesses connected inside the signal transfer box from top to bottom, ensuring that the wiring harnesses inside the signal transfer box are neat and easy to distinguish, reducing the difficulty for maintenance workers to enclose the internal wiring of the signal transfer box;

[0013] 2. The utility model installs a limit strip on the inner side of the wiring harness slot, and uses the limit strip to limit the wiring harness inside the wiring harness slot, thereby preventing the wiring harness from falling out of the wiring harness slot after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the first wire harness restraining tube of the present invention;

[0016] Figure 3 This is a schematic diagram of the splicing of the first wire harness restraining tube and the second wire harness restraining tube of the present invention;

[0017] Figure 4 It is a cross-sectional schematic diagram of the limit strip of the utility model.

[0018] In the figure: 1. Box body; 2. Rotating sealing plate; 3. First wire harness restraining tube; 4. Second wire harness restraining tube; 5. Wire harness slot; 6. Fixing rod; 7. Splicing slot; 8. Limiting strip; 9. Splicing block; 10. Fixing strip; 11. Rotating connecting strip; 12. Elastic support rod. DETAILED DESCRIPTION

[0019] 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 the embodiments.

[0020] like Figures 1 to 4 As shown, a signal transfer box for an avionics bus is provided. A rotating sealing plate 2 is rotatably installed at the front of the box body 1. A plurality of equally spaced fixing rods 6 are fixed inside the box body 1. A first wire harness restraint tube 3 is fixed to the top of the fixing rod 6. A plurality of stacked second wire harness restraint tubes 4 are installed above the first wire harness restraint tube 3. The first wire harness restraint tube 3 and the second wire harness restraint tube 4 are both bent in an S shape. Both ends of the first wire harness restraint tube 3 and the second wire harness restraint tube 4 are parallel to the bottom surface. The middle parts of the first wire harness restraint tube 3 and the second wire harness restraint tube 4 are perpendicular to the bottom surface. A wire harness clamping groove 5 is provided on one side of the first wire harness restraint tube 3 and the second wire harness restraint tube 4. Two symmetrically distributed limiting strips 8 are installed on the inner side of one end of the wire harness clamping groove 5. The stacked first wire harness restraint tube 3 and the second wire harness restraint tube 4 are used to clamp and restrain the wire harnesses distributed vertically and located in the same vertical column to ensure that the wire harnesses are vertically parallel and that the wire harnesses are not entangled with each other.

[0021] The top upper surfaces of the first wiring harness restraint tube 3 and the second wiring harness restraint tube 4 are provided with a splicing slot 7, and a splicing block 9 is fixed to the bottom of the bottom end of the second wiring harness restraint tube 4. The splicing block 9 is clamped in the inner side of the splicing slot 7, and a V-shaped groove is provided at the bottom of the splicing block 9. The width of the splicing block 9 is larger than the width of the splicing slot 7. The existence of the V-shaped groove allows the two sides of the splicing block 9 to be squeezed and deformed toward the middle, thereby ensuring that after the splicing block 9 is installed in the splicing slot 7, the side wall of the splicing block 9 is tightly attached to the inner wall of the splicing slot 7, ensuring that the first wiring harness restraint tube 3 and the second wiring harness restraint tube 4 cannot be separated without human intervention.

[0022] One end of the limiting strip 8 is bent and the bent end is an arc. The center of the arc-shaped end of the limiting strip 8 coincides with the center of the wiring harness slot 5. Two fixing strips 10 are fixed to the inner surface of the wiring harness slot 5. The fixing strip 10 is close to the end of the limiting strip 8 and is inserted with a cylindrical pin. Rotating connecting strips 11 are rotatably installed on the outer sides of both ends of the cylindrical pin. The rotating connecting strip 11 is fixed to the limiting strip 8. The fixing strip 10 and the bent end of the limiting strip 8 are supported and fixed with an elastic support rod 12. The elastic support rod 12 is an arc-shaped thin rod and is made of spring steel. The elastic support rod 12 is used to support the fixing strip 10 and the limiting strip 8 to ensure that the limiting strip 8 can be reset after rotation and to limit the wiring harness installed on the inside of the wiring harness slot 5 to prevent the wiring harness from falling or falling off from the inside of the wiring harness slot 5.

[0023] Working principle: When connecting the wiring harness of the signal transfer box, first select the appropriate number of second wiring harness binding tubes 4 and the first wiring harness binding tube 3 according to the number of connected wiring harnesses, and squeeze the two sides of the splicing block 9 toward the middle during splicing and clamp the splicing block 9 on the inside of the splicing slot 7. After the splicing block 9 enters the inside of the splicing slot 7, it elastically recovers to increase the friction between the splicing block 9 and the inner wall of the splicing slot 7. Then, connect the wiring harness to the terminal inside the signal transfer box. After the wiring harness is connected, clamp the wiring harness in the wiring harness slot 5 on the side of the first wiring harness binding tube 3 or the second wiring harness binding tube 4 at the same height as the terminal. When the wiring harness enters the wiring harness slot 5, it will be clamped to the limit. The positioning strip 8 is squeezed, so that the limiting strip 8 drives the rotating connecting strip 11 to rotate around the cylindrical pin at the end of the fixed strip 10. At this time, the limiting strip 8 compresses the elastic support rod 12. After the wiring harness completely enters the inner side of the wiring harness slot 5, the elastic support rod 12 elastically recovers and drives the limiting strip 8 to reset. The Shudie limiting strip 8 applies a force to the wiring harness from the outside of the wiring harness pointing to the inside of the wiring harness slot 5 to prevent the wiring harness from falling from the inside of the wiring harness slot 5. The wiring harness is connected parallel and neatly inside the signal transfer box through the first wiring harness restraint tube 3 and the second wiring harness restraint tube 4 to avoid entanglement between the wiring harnesses, thereby reducing the difficulty of maintenance personnel to enclose the internal lines of the signal transfer box.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A signal transfer box for an avionics bus, comprising a box body (1), a rotating sealing plate (2) being rotatably mounted in front of the box body (1), characterized in that: A plurality of equally spaced fixing rods (6) are fixed inside the box (1), a first wire harness restraining tube (3) is fixed to the top of the fixing rod (6), a plurality of stacked second wire harness restraining tubes (4) are installed above the first wire harness restraining tube (3), the first wire harness restraining tube (3) and the second wire harness restraining tube (4) are both S-shaped, and both ends of the first wire harness restraining tube (3) and the second wire harness restraining tube (4) are parallel to the bottom surface, and the middle parts of the first wire harness restraining tube (3) and the second wire harness restraining tube (4) are perpendicular to the bottom surface, and a wire harness slot (5) is provided on one side of the first wire harness restraining tube (3) and the second wire harness restraining tube (4), and two symmetrically distributed limiting strips (8) are installed on the inner side of one end of the wire harness slot (5).

2. The signal transfer box for an avionics bus according to claim 1, characterized in that: The top upper surfaces of the first wire harness restraining tube (3) and the second wire harness restraining tube (4) are provided with splicing slots (7), and the bottom of the bottom end of the second wire harness restraining tube (4) is fixed with a splicing block (9).

3. The signal transfer box for an avionics bus according to claim 2, characterized in that: The splicing block (9) is clamped inside the splicing slot (7), a V-shaped groove is provided at the bottom of the splicing block (9), and the width of the splicing block (9) is greater than the width of the splicing slot (7).

4. The signal transfer box for an avionics bus according to claim 1, characterized in that: One end of the limiting strip (8) is bent and the bent end is arc-shaped, and the center of the arc-shaped end of the limiting strip (8) coincides with the center of the wire harness slot (5).

5. The signal transfer box for an avionics bus according to claim 4, characterized in that: Two fixing bars (10) are fixed to the inner surface of the wiring harness slot (5), and cylindrical pins are inserted through the ends of the fixing bars (10) close to the limiting bars (8), and rotating connecting bars (11) are rotatably installed on the outer sides of both ends of the cylindrical pins, and the rotating connecting bars (11) are fixed to the limiting bars (8).

6. The signal transfer box for an avionics bus according to claim 5, characterized in that: The bent ends of the fixing strip (10) and the limiting strip (8) are supported and fixed with an elastic support rod (12), which is an arc-shaped thin rod made of spring steel.

Images