Pin connection type foam support

Abstract

The invention relates to a pin connection type foam support, and relates to the field of test equipment, the pin connection type foam support comprises foam strips arranged in multiple layers, filling pins and connecting pins, the length of the filling pins is smaller than the thickness of the foam strips, the length of the connecting pins is equal to the thickness of the foam strips, the foam strips are provided with a plurality of through holes, and the filling pins are inserted into the through holes. The bottom of the connecting pin is inserted into the through hole to abut against the filling pin, the top of the connecting pin is inserted into the upper-layer foam strip to abut against the filling pin in the upper-layer foam strip, and the exterior of the connecting pin is coated with glass cement.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring devices, and particularly to a pin-connected foam support. Background Art

[0002] The foam support is made by foam foaming. Since the internal foaming particles are air, the foam has good low-scattering characteristics and can be used as a good material for a low-scattering RCS support for carrying targets. Therefore, foam supports are usually used as low-scattering supports to support the target to be measured in open-field radiation and scattering measurements. Due to the limitation of the foam size on the market, large-size foam supports generally process the foam and stack them together to form a large bearing surface. During field tests, under the action of wind loads, there is a risk that the bulk foam strips of the foam support will be blown away by the strong wind.

[0003] Therefore, in view of the above deficiencies, a pin-connected foam support is needed. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] The technical problem to be solved by the present invention is to solve the problem of how to reduce the probability that the large-bearing surface foam support is blown away by the strong wind.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the present invention provides a pin-connected foam support, which includes multiple layers of arranged foam strips, filling pins and connecting pins. The length of the filling pins is less than the thickness of the foam strips, and the length of the connecting pins is equal to the thickness of the foam strips. A plurality of through holes are opened on the foam strips. The filling pins are inserted into the through holes, the bottom of the connecting pins is inserted into the through holes and abuts against the filling pins, the top of the connecting pins is inserted into the upper-layer foam strip and abuts against the filling pins in the upper-layer foam strip, and glass glue is coated on the outer surface of the connecting pins.

[0008] As a further description of the present invention, preferably, both the filling pins and the connecting pins are non-metallic cylinders, and fiberglass is sleeved outside the filling pins and the connecting pins.

[0009] As a further description of the present invention, preferably, no less than two filling pins and connecting pins are inserted into the foam strips.

[0010] As a further description of the present invention, preferably, the number of single-layer foam strips arranged is no less than two, and the length directions of adjacent-layer foam strips are perpendicular to each other.

[0011] As a further description of the present invention, preferably, the joint surfaces of the single-layer foam strips are all inclined surfaces, and the multi-layer foam strips are stacked into a frustum shape.

[0012] (3) Beneficial Effects

[0013] The above technical solution of the present invention has the following advantages:

[0014] By reasonably designing the filling pin and the connecting pin, the present invention enables the foam strips to be connected layer by layer when stacked together. When the wind blows, the upper and lower layers are restricted by the pins, and the foam strips are not easily blown away, having a certain wind resistance. At the same time, the filling pin and the connecting pin do not affect the low-scattering characteristic, achieving two goals with one action. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall assembly effect diagram of the present invention;

[0016] Figure 2 is the connection structure diagram of the present invention.

[0017] In the figure: 1. Foam strip; 2. Filling pin; 3. Connecting pin. DETAILED DESCRIPTION OF THE INVENTION

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. 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.

[0019] A pin-connected foam bracket, in combination with Figure 1 , Figure 2 , includes multiple layers of arranged foam strips 1, filling pins 2, and connecting pins 3. The foam strip 1 is in a strip structure, and the interfaces of the single-layer foam strip 1 are all inclined planes. The number of single-layer foam strips 1 arranged is not less than two, and the length directions of adjacent layers of foam strips 1 are perpendicular to each other so that multiple layers of foam strips 1 are stacked up and down into a frustum shape. The filling pins 2 and the connecting pins 3 are both inserted into the foam strip 1.

[0020] In combination with Figure 1 , Figure 2 , not less than two through holes are provided in the length direction of the foam strip 1 so that not less than two filling pins 2 and connecting pins 3 can be inserted into a single foam strip 1. The filling pins 2 and the connecting pins 3 are both cylindrical bodies made of foam. The outer diameters of the filling pins 2 and the connecting pins 3 are the same and the size should not be too small, that is, not less than one-fifth of the width of the foam strip 1, so as to avoid the foam pins being too thin and being damaged due to excessive friction between the pins and the foam strip 1 during pin insertion. In addition, a fiberglass can be sleeved outside the filling pins 2 and the connecting pins 3. On the one hand, the fiberglass can reduce the friction of inserting into the foam strip 1, on the other hand, it can also improve the connection strength, and at the same time, it will not have much impact on the RCS of the foam bracket.

[0021] Combined with Figure 1 and Figure 2 , the length of the filling dowel 2 is less than the thickness of the foam strip 1, and the length of the connecting dowel 3 is equal to the thickness of the foam strip 1. The filling dowel 2 is inserted into the through hole of the foam strip 1, the bottom of the connecting dowel 3 is inserted into the through hole and abuts against the filling dowel 2, the top of the connecting dowel 3 is inserted into the upper foam strip 1 and abuts against the filling dowel 2 inside the upper foam strip 1. The connecting dowel 3 is coated with glass glue. After the glass glue is cured, it can not only reduce the friction between the connecting dowel 3 and the foam strip 1 to make the connecting dowel 3 better inserted into the foam strip 1, but also improve the structural strength of the connecting dowel 3, thereby improving the connection strength of each layer of foam strip 1 and the wind resistance of the bracket. At the same time, it will not affect the RCS performance of the bracket. By designing the connecting dowel 3, it plays a role in positioning and connecting the upper and lower layers of foam strips 1, making the foam bracket form a whole. When the wind blows, the upper and lower layers are restricted by the dowels, and the foam strips are not easily blown away, improving the wind resistance and avoiding scattering. The filling dowel 2 is used to fill and plug the holes in the foam strip 1, or is inserted between two connecting dowels 3 to make up for the limitation that the height of the connecting dowel 3 is limited and there are holes in the foam strip 1.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pin-connected foam support, characterized in that: It includes foam strips (1) arranged in multiple layers, filling pins (2) and connecting pins (3). The length of the filling pin (2) is less than the thickness of the foam strip (1), and the length of the connecting pin (3) is equal to the thickness of the foam strip (1). A number of through holes are provided on the foam strip (1). The filling pin (2) is inserted into the through hole, the bottom of the connecting pin (3) is inserted into the through hole and abuts against the filling pin (2), the top of the connecting pin (3) is inserted into the upper foam strip (1) and abuts against the filling pin (2) inside the upper foam strip (1), and glass glue is coated on the connecting pin (3).

2. The pin-connected foam bracket according to claim 1, wherein: Both the filling pin (2) and the connecting pin (3) are non-metallic cylinders, and a glass fiber reinforced plastic is sleeved outside the filling pin (2) and the connecting pin (3).

3. The pin-connected foam support according to claim 2, wherein: No less than two filling pins (2) and connecting pins (3) are inserted into the foam strip (1).

4. The pin-connected foam bracket according to claim 3, characterized in that: The number of single-layer foam strips (1) arranged is no less than two, and the length directions of adjacent-layer foam strips (1) are perpendicular to each other.

5. The pin-connected foam support according to claim 4, characterized in that: The joint surfaces of the single-layer foam strips (1) are all inclined planes, and multiple layers of foam strips (1) are stacked into a frustum of a cone shape.

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