CN204297048U - A kind of lid discharge structure - Google Patents

Abstract

The utility model discloses a mouth cover drainage structure, which comprises a mouth cover (1), a mouth frame (4), a sealing pad (3) and a drainage groove (7), and the sealing pad (3) is located on the mouth cover ( 1) The gap between the mouth frame (4) and the mouth cover (4) serves as a waterproof seal. The drainage groove (7) is located below the seam between the mouth frame (4) and the mouth cover (1), and also includes a set of drainage device, the drainage device includes a water retaining plate (2) and a water retaining strip (5), the water retaining plate (2) protrudes from the mouth cover (1) and extends toward the drainage groove (7), and finally ends at The vertical extension does not exceed the drainage groove (7), and the water retaining strip (5) protrudes from the mouth frame (4) and extends toward the drainage groove (7). The utility model can solve the problem of water leakage in the large mouth cover areas that appear in groups, and has simple assembly and positioning, simple and reliable structure, and will not reduce the strength of the original structure.

Description

A mouth cover drainage structure

technical field

The utility model belongs to the structure design of an aircraft, and relates to a mouth cover drainage structure.

Background technique

There is no drainage device in the current drainage tank. If water enters the aircraft along the inner surface of the mouth cover or the inner wall of the mouth frame, the flow direction of the water cannot be controlled, and the splashed water in the drainage tank cannot be collected. Can cause damage to equipment on board the aircraft. And the prior art mostly adopts series drainage channels to be directly connected to the web plates of frames and beams, which is difficult to locate during assembly. The stagnant water flows through the height difference of the gutter, if the assembly is improper, the stagnant water will overflow from the gutter. Since the tandem drainage channel does not have a closed drainage channel under each cover, holes need to be made on the structure when the drainage channel passes through the frame or beam, which reduces the strength of the structure to a certain extent. This kind of drainage groove needs to reserve construction space for the butt fasteners when passing through the cross-joint area of the structure, so it cannot receive water leakage near the cross-joint area.

Utility model content

The technical problem to be solved by the utility model is to provide a structure that can solve the water leakage in the large mouth cover area that appears in groups. The assembly and positioning are simple and the structure is simple and reliable, and the strength of the original structure will not be reduced.

In order to solve the above problems, the technical solution of the utility model provides. A cover drainage structure, including a cover 1, a frame 4, a gasket 3 and a drainage groove 7, the gasket 3 is located between the cover 1 and the frame 4 In the gap of the cover, it plays a role of waterproof sealing. The drainage groove 7 is located below the joint between the mouth frame 4 and the mouth cover 1. It is characterized in that it also includes a set of drainage devices. The drainage device includes a water retaining plate 2 and the water retaining strip 5, the water retaining plate 2 protrudes from the mouth cover 1 and extends toward the drainage groove 7, and the final terminal does not extend beyond the drainage groove 7 in the vertical direction, and the water retaining strip 5 extends from the mouth frame 4 protrudes and extends towards the drainage groove 7 direction.

Preferably, the connection surface between the 5 water retaining strips and the mouth frame 4 is zigzag, leaving the connection area between the mouth frame 4 and the lid lock.

Preferably, the drainage groove 7 is detachably connected to the mouth frame 4 through a connecting angle piece.

Preferably, the drainage groove 7 is a closed ring structure, and a drainage hole is provided at the lowest end of the drainage groove, and the drainage hole is connected to a drainage pipeline.

The drainage device in the utility model includes a water retaining plate and a water retaining strip, which can effectively guide the water entering the aircraft into the drain tank and prevent the water from splashing out in the drain tank. The water leakage of the mouth cover circumference circle and the water leakage of the mouth cover locking nail hole can be caught by the annular drainage groove, and the water is discharged in time. The water retaining plate connected to the circumference of the cover can improve the rigidity of the circumference of the cover, and the installation of the drainage groove will not affect the original structural strength. The rounded corner design of the mouth cover and the layout of the drainage groove can leave construction space for the cross-joint area of the structure.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:

Fig. 1 is a kind of mouth cover drainage junction structure;

Fig. 2 is a mouth cover and a water retaining plate;

Fig. 3 is water retaining bar;

Figure 4 The circular drainage groove, the connecting angle piece and the drainage pipeline.

Detailed ways

The utility model is described in further detail below:

A mouth cover drainage structure is composed of a mouth cover 1, a water retaining plate 2, a sealing gasket 3, a mouth frame 4, a water retaining strip 5, a connecting angle piece 6, and a drainage groove 7, as shown in Fig. 1 .

The mouth cover 1 is a metal spot welded mouth cover, and the four corners of the mouth cover are designed as rounded corners, which is convenient for the manufacturing and shaping of the drainage groove at the corner. The water baffle 2 can be connected with the mouth cover 1 by spot welding, as shown in Figure 2; the sealing gasket 3 can use a silicone rubber gasket with high resilience. The water retaining strip 5 is installed under the mouth frame 4, and the connection with the mouth frame 4 uses countersunk fasteners. The connection area between the water retaining strip 5 and the mouth frame is designed to be zigzag, leaving the connection area between the mouth cover lock and the mouth frame. As shown in Figure 3. When installing the cover lock, ensure that the keyhole is within the range of the drainage groove to ensure that the water leaking from the keyhole can be caught by the drainage groove.

In order to reduce the production cost, the drainage groove 7 can be segmented, and the segmented parts are connected with groove-shaped joints, and the bonding surfaces are sealed, and the fasteners at the joints are wet-connected. Since the space between the connecting angle piece 6 and the mouth frame web is small, the connecting angle piece 6 and the drainage groove 7 are connected by rivets. The connecting angle pieces 6 and the mouth frame 4 are connected by supporting plate nuts and bolts, which is convenient for maintenance and replacement of the drain tank. As shown in Figure 4, drain holes are opened at the lowest point of the drain tank 7, the drain pipeline 8 is welded to the drain tank 7, and the accumulated water in the drain tank is discharged out of the body through the pipeline.

Claims (4)

1. a lid discharge structure, comprise lid (1), mouth frame (4), sealing gasket (3) and rhone (7), described sealing gasket (3) is arranged in the gap that described lid (1) and mouth frame (4) cover place, play waterproof sealing effect, described rhone (7) is positioned at below the joint close of a mouthful frame (4) and lid (1), it is characterized in that, also comprise one group of drainage system, described drainage system comprises water fender (2) and water bar (5), described water fender (2) stretches out from lid (1) and extends to rhone (7) direction, most terminal in the vertical direction does not exceed rhone (7) extension, described water bar (5) stretches out from mouth frame (4) and extends to rhone (7) direction.

2. discharge structure according to claim 1, is characterized in that, the joint face of described (5) water bar and mouth frame (4) is zigzag, reserves the bonding pad that a mouthful frame (4) is locked with lid.

3. discharge structure according to claim 1, is characterized in that, described rhone (7) is connected on a mouthful frame (4) removably by connecting gusset plate.

4. discharge structure according to claim 1, is characterized in that, described rhone (7) is closed hoop structure, arranges osculum in the least significant end of rhone, and described osculum connects discharge pipe line.