CN217558732U - Double-end double-lug supporting plate screw - Google Patents

Abstract

The utility model relates to a screw especially relates to a double-end ears layer board screw. A double-head double-lug supporting plate screw comprises a screw body and a double-lug supporting plate body, wherein the screw body penetrates through the upper end surface and the lower end surface of the double-lug supporting plate body and is fixedly connected with the double-lug supporting plate body, the double-lug supporting plate body divides the screw body into an upper screw body and a lower screw body, and the upper screw body and the lower screw body are used for installing a clamp; the double-lug support plate body is provided with a connecting part for connecting and fixing the double-lug support plate body and the airplane structure frame plate. The utility model has the advantages of as follows: 1. the holes of the frame plate of the airplane structure are few, the damage to the strength of the frame plate is small, and the operation time is saved; 2. the double-end double-lug supporting plate screw body is fixed before the hoops, and the hoops on two sides can be hung/detached on the screw body by one hand in a space limited area, so that the requirements of hoop installation on operation space, personnel number and working hours are effectively reduced; 3. simple structure, easy installation, practicality are strong.

Description

Double-end double-lug supporting plate screw

Technical Field

The utility model relates to a screw especially relates to a double-end ears layer board screw.

Background

The screw is a fastener widely applied to fixing the airplane hoop, and aiming at the condition that two hoops need to be fixed at the same or adjacent positions on two sides of a frame plate of an airplane structure and the fixing position of the hoops is allowed to be properly adjusted, the two hoops are fixed in a mode of dislocation of two screws or one common screw is used for fixing the two hoops at the same position. The structure frame plate is provided with two adjacent screw holes in a staggered fixing mode aiming at the double screws, so that the structural strength is greatly influenced; aiming at the problem that two sides of a frame plate need to be simultaneously operated by two persons due to the fact that a common screw is fixed at the same position, operation of workers is difficult, when a single-side hoop needs to be disassembled and assembled, the operation can be realized only by operating the hoops at two sides, and useless work is increased; every workman all needs both hands to operate during two kinds of above forms dismouting clamps, to the limited region in space, is unfavorable for the dismouting clamp.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems existing in the prior art and providing a double-end double-lug supporting plate screw convenient to disassemble and assemble.

In order to realize the purpose, the utility model adopts the following technical scheme: a double-head double-lug supporting plate screw comprises a screw body and a double-lug supporting plate body, wherein the screw body penetrates through the upper end surface and the lower end surface of the double-lug supporting plate body and is fixedly connected with the double-lug supporting plate body, the double-lug supporting plate body divides the screw body into an upper screw body and a lower screw body, and the upper screw body and the lower screw body are used for installing a clamp; the double-lug support plate body is provided with a connecting part for connecting and fixing the double-lug support plate body and the airplane structure frame plate.

Preferably, connecting portion are countersunk rivet hole, and countersunk rivet hole sets up on the ears hold in the palm the plate body, and runs through its upper and lower terminal surface, and countersunk rivet hole corresponds with the rivet hole on the aircraft structure frame board.

Furthermore, the countersunk rivet holes are distributed on the left side and the right side of the nail body.

Preferably, the outer contour of the double-lug supporting plate is waist-shaped.

Preferably, the upper nail body and the lower nail body are cylindrical structures with threads.

The working principle is as follows: when the airplane structure frame plate does not allow too many holes to be formed in a short distance, two hoops need to be fixed at the adjacent positions or the same positions of the two sides of the frame plate and the fixing positions of the hoops are allowed to be properly adjusted, a double-head double-lug supporting plate screw penetrates through the screw hole of the structure frame plate, the double-head double-lug supporting plate screw is fixed by two double-countersunk head rivets, and the hoops on the two sides can be hung or detached on the nail body by a single hand.

Compared with the prior art, the utility model, have following advantage:

1. the holes of the frame plate of the airplane structure are few, the damage to the strength of the frame plate is small, and the operation time is saved;

2. the double-end double-lug supporting plate screw body is fixed before the clamps, and the clamps on two sides can be hung or disassembled on the screw body by one hand in a space limited area, so that the requirements of clamp installation on operation space, personnel number and working hours are effectively reduced;

3. simple structure, easy installation, practicality are strong.

Drawings

FIG. 1 is a half-sectional view of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is an exploded view of an embodiment of the present invention;

FIG. 4 is an effect diagram of the embodiment of the present invention after being installed with the frame plate and the hoop of the aircraft structure;

in fig. 1-2, 11, the nail body is arranged; 12. a lower nail body; 13. a double-lug support plate body; 13.1, the countersunk side of the double-lug supporting plate body; 13.2, the double-lug supporting plate body is arranged on the non-countersunk side; 14. an upper transition arc surface; 15. a lower transition arc surface; 16. countersunk rivet holes;

in fig. 3-4, 1, a double-headed double-lug supporting plate screw; 2. a front clamp for penetrating the cable; 3. a front self-locking nut; 4. a rear clamp for penetrating the cable; 5. a rear self-locking nut; 6. a structural frame plate.

Detailed Description

It should be noted that, in the present embodiment, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships usually placed when the utility model is used, and are only for convenience of describing the utility model and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the utility model.

The present invention will be described in detail with reference to the accompanying drawings 1-4: a double-head double-lug supporting plate screw comprises a screw body and a double-lug supporting plate body 13, wherein the screw body penetrates through the centers of the upper end surface and the lower end surface of the double-lug supporting plate body and is fixedly connected with the double-lug supporting plate body, the screw body is divided into an upper screw body 11 and a lower screw body 12 by the double-lug supporting plate body 13, and the upper screw body 11 and the lower screw body 12 are used for installing a clamp; the double-lug support plate body 13 is provided with a connecting part for connecting and fixing the double-lug support plate body and the airplane structure frame plate 6.

The concrete structure is as follows: as shown in fig. 1-2, the outer contour of the binaural board support body 13 is a kidney-shaped cylinder, that is, the outer shape of the upper and lower end surfaces of the binaural board support body 13 is kidney-shaped, and the whole binaural board support body is of a plate-shaped structure; the double-lug support plate body 13 is provided with two countersunk rivet holes 16 for fixing, and the countersunk rivet holes 16 are distributed at the left side and the right side of the nail body, correspond to the rivet holes (not shown in the figure) on the aircraft structure frame plate and are concentric with the two semicircles of the outline; the nail body is characterized in that the nail body is located on the upper nail body side, the two lugs support plate body countersunk hole side 13.1 is located on the lower nail body side, the two lugs support plate body non-countersunk hole side 13.2 is located on the lower nail body side, the bottom of the upper nail body 11 is provided with an upper transition cambered surface 14, the bottom of the lower nail body 12 is provided with a lower transition cambered surface 15, the upper nail body 11 is connected with the two lugs support plate body 13 through the upper transition cambered surface 14, and the lower nail body 12 is connected with the two lugs support plate body 13 through the lower transition cambered surface 15.

As a preferred embodiment of this embodiment, the upper nail body 11 and the lower nail body 12 are cylindrical structures with threads, that is, the upper nail body 11 and the lower nail body 12 are provided with external threads and are respectively adapted to the front self-locking nut 3 and the rear self-locking nut 5.

In this embodiment, when the adjacent position of the aircraft structure frame plate 6 does not allow too many holes, allows the hoop mounting positions on both sides of the frame plate to be properly adjusted, and the hoop mounting and dismounting space is limited, or when the hoops are mounted on the same positions on both sides of the structure frame plate, in order to avoid the two-person simultaneous operation on both sides of the frame plate, and the hoop mounting and dismounting space is limited, as shown in fig. 3, the two-piece hoop mounting steps on both sides of the structure frame plate are as follows:

(1) The non-countersunk hole side 13.2 of the double-head double-lug supporting plate body 13 of the double-head double-lug supporting plate screw 1 is attached to one side of the structural frame plate 6;

(2) Two double-headed countersunk rivets are used, and the double-headed binaural supporting plate screws 1 are fastened on the structural frame plate 6 through the two countersunk rivet holes 16 of the binaural supporting plate body 13;

(3) The front hoop 2 which penetrates into the cable is locked on the upper nail body 11 through the front self-locking nut 3;

(4) The rear clamp 4 with the cable threaded therein is locked to the lower nail body 12 by the rear self-locking nut 5, and the installation is completed, as shown in fig. 4.

Claims (5)

1. The utility model provides a double-end ears layer board screw which characterized in that: the nail body is divided into an upper nail body and a lower nail body by the double-lug support plate body, and the upper nail body and the lower nail body are used for installing a clamp; the double-lug support plate body is provided with a connecting part for connecting and fixing the double-lug support plate body and the airplane structure frame plate.

2. The double-ended binaural baseplate screw of claim 1, wherein: the connecting parts are countersunk rivet holes, the countersunk rivet holes are formed in the double-lug support plate body and penetrate through the upper end face and the lower end face of the double-lug support plate body, and the countersunk rivet holes correspond to the rivet holes in the aircraft structure frame plate.

3. The double-ended binaural baseplate screw of claim 2, wherein: the countersunk head rivet holes are distributed on the left side and the right side of the rivet body.

4. The double-ended binaural baseplate screw of claim 1, wherein: the outer contour of the double-ear supporting plate is waist-shaped.

5. The double-ended binaural baseplate screw of claim 1, wherein: the upper nail body and the lower nail body are cylindrical structures with threads.

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