CN201045094Y - refrigerated container - Google Patents

Abstract

Provided is a refrigerated container. A bottom board of the utility model comprises a floor arranged in a box body, a waved assistant floor positioned outside the box body, and a foaming material layer for filling arranged between the floor and the assistant floor. The assistant floor is connected to a bottom lateral beam, the waved assistant floor comprises a plurality of peaks and wave bottoms which are in the same shape and are in sequential and alternate arrangement, wave inclined edges are arranged between the peaks and the wave bottoms, and the wave inclined edges are characterized in that included angles of the wave inclined edges and the horizontal direction are smaller than 45 degrees. Compared with the existing technology, the utility model has the advantaged of high welding quality, convenient painting, low cost, high production efficiency, good rigidity and the like.

Description

refrigerated container

technical field

The utility model relates to a container, in particular to an improved bottom plate for a refrigerated container.

Background technique

The bottom plate of the existing refrigerated container is generally composed of the upper T floor and the lower sub-floor filled with foam material; among them, the corrugated sub-floor structure is widely used because of its good air leakage resistance and light weight. The sub-floor is generally formed by overlapping or splicing (welding or bonding) multiple corrugated sub-floors to form a whole sub-floor. As shown in FIG. 1 and FIG. 2 , the whole sub-floor 1 is welded on the bottom side beam 2 . Place the T floor 3 on one side of the auxiliary floor, and leave a certain distance between the two to fill the heat-insulating foam 4 . Since each corrugated sub-floor is welded or bonded to form the entire sub-floor, the sub-floor 1 and the bottom side beam 2 are welded together, so the air leakage resistance is good, and the whole corrugated sub-floor is lighter than the steel bottom beam structure. The waveform distribution of sub-floors currently used in refrigerated containers is shown in Figure 2. The sub-floor 1 is a corrugated sub-floor with multiple peaks 8, sloping sides 7, and troughs 6 of the same shape arranged alternately. The angle of the sloping sides is greater than 45°. °, and the waves reach a depth of 50mm to 60mm. The deep wave waveform has the following disadvantages:

(1) There are many pressing and assembling processes, and the efficiency is low;

(2) The welding with the bottom side beam is all used for manual welding, which has low welding efficiency and poor forming;

(3) The trough foam material does not have a heat insulation effect;

(4) The paint construction is difficult, resulting in a huge difference in the thickness of the paint film between the crest and the trough, and the waste is serious.

Utility model content

The purpose of this utility model is to provide a refrigerated container by overcoming the defects of the above-mentioned prior art on the premise of ensuring strength and heat insulation performance. .

The purpose of the utility model is achieved in the following ways: the bottom plate of the refrigerated container of the utility model includes a floor inside the box, a corrugated sub-floor outside the box, and a hair filling between the floor and the sub-floor. Foam material layer, the sub-floor is connected to the bottom side beam, the corrugated sub-floor includes a plurality of crests and troughs of the same shape arranged alternately in sequence, and there is a wave hypotenuse between the crests and the troughs, which is characterized in that : The angle formed by the hypotenuse of the wave and the horizontal direction is less than 45°.

In the refrigerated container of the utility model, the wave depth of the corrugated auxiliary floor is 32-46mm.

In the refrigerated container of the present utility model, the wave depth of the corrugated auxiliary floor is 36mm.

In the refrigerated container of the utility model, the widths of the wave crests and wave troughs are equal.

In the refrigerated container of the present utility model, the widths of the hypotenuses of the waves are all the same.

In the refrigerated container of the present utility model, the peaks and troughs of the waves are flat.

In the refrigerated container of the present utility model, the connection mode of the auxiliary floor and the bottom side beam is welding.

In the refrigerated container of the utility model, the floor is a T floor.

The beneficial effects of the utility model are:

Compared with the prior art, the utility model optimizes and improves the waveform of the corrugated sub-floor of the refrigerated container, can realize automatic welding and automatic painting, improves production efficiency and welding quality, reduces waste, distributes the waveform reasonably, and saves materials.

Description of drawings

Fig. 1 is a transverse sectional view of the bottom plate of a refrigerated container;

Fig. 2 is a partial longitudinal sectional view of the corrugated sub-floor and the foam material layer of the bottom plate of the refrigerated container in the prior art;

Fig. 3 is a partial longitudinal sectional view of the corrugated sub-floor and the foam material layer of the bottom plate of the refrigerated container of the present invention.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Among them, Fig. 1 is a transverse sectional view of the bottom plate of the refrigerated container; Fig. 3 is a partial longitudinal sectional view of the corrugated sub-floor and the foam material layer of the refrigerated container bottom plate of the utility model.

As shown in Figures 1 and 3, the bottom plate of the refrigerated container of the present invention includes a floor 3 located inside the box, a corrugated sub-floor 1 located outside the box, and foaming foam filled between the floor 1 and the corrugated sub-floor 3 The material layer 4, the corrugated sub-floor 1 is fixedly connected to the bottom side beam 2, the corrugated sub-floor 1 includes a plurality of crests 8 and troughs 6 of the same shape arranged alternately in sequence, and the gap between the crests 8 and the troughs 6 is The angle a or b formed by the hypotenuse 7 and the horizontal direction is less than 45°. The angle formed by the hypotenuse of the wave and the horizontal direction refers to the acute angle formed by the hypotenuse of the wave and the horizontal direction.

The floor 3 located in the box is preferably a T-floor with a T-shaped cross-section, and a corrugated board can also be used. The foam material layer 4 is preferably a polyurethane foam layer.

The wave depth of the corrugated sub-floor of the bottom plate of the refrigerated container of the present invention is preferably 32-46mm. In a preferred embodiment, except for the four water leaker areas, the wave depth of the corrugated sub-floor is 36mm. The wave depth mentioned in this specification refers to the distance between the crest and the straight line where the trough is located.

As shown in Fig. 1 and Fig. 3, in the preferred embodiment of the floor of the refrigerated container of the present invention, the crests 8 and troughs 6 are flat, the widths of the crests 8 and the troughs 6 are equal, and the widths of each bevel 7 are equal. same.

The fixed connection method between the sub-floor 1 and the bottom side beam 2 can be welding, and the bottom plate of the refrigerated container of the utility model can weld the sub-floor 1 to the bottom side beam 2 by automatic welding.

The bottom plate of the refrigerated container of the utility model, wave crests, wave troughs, and wave slopes can also be arc-shaped. At this time, the angle between the wave slope and the horizontal direction refers to the angle between the tangent of a certain point on the wave slope and the horizontal direction.

The corrugated sub-floor of the utility model has been improved and optimized on the basis of the original waveform, the number of waves has been increased, the depth of the waves has been reduced, and the slope of the wave hypotenuse is less than 45 degrees, which can realize automatic welding, thereby improving Production efficiency has been improved, the working environment has been improved, and the standardization of parts has been realized. The reasonable distribution of corrugated sub-floor waveforms in the utility model reduces the material consumption of corrugated boards, saves materials, and can realize automatic painting, which reduces the waste of paint and reduces the cost. During use, the corrugated sub-floor will be damaged due to collisions. With the waveform of the utility model, the wave depth becomes shallower, and the height of the sub-floor from the ground increases, thereby reducing the probability of collisions and reducing maintenance during use. cost.

As for thermal insulation performance, since the thickness of the thinnest part of the foam layer does not change, and there are other heat leakage concentrated areas on the bottom plate, such as the gooseneck area of the 40' refrigerated container and the fork groove area of the 20' refrigerated container, Therefore there is no obvious difference between the utility model and the heat leakage performance of the existing bottom plate.

The utility model is proved to meet the requirements of ISO-1496/2 on the rigidity and heat leakage requirements of the bottom plate of the refrigerated container through tests.

The above are only preferred feasible embodiments of the present utility model, and the described embodiments are not intended to limit the scope of patent protection of the present utility model, so any equivalent structural changes made by using the specification and accompanying drawings of the present utility model, In the same way, all should be included in the protection scope of the present utility model.

Claims (8)

1. refrigerated container, its base plate comprises floor in casing, the ripple subfloor outside casing, the foamed material layer of filling between described floor and described subfloor, described subfloor is connected in bottom side beams, described ripple subfloor comprises successively a plurality of identical shaped crest and trough alternately, between described crest and the described trough is the ripple hypotenuse, it is characterized in that: ripple hypotenuse and horizontal direction angle are less than 45 °.

2. as claims 1 described refrigerated container, it is characterized in that: the depth of convolution of described ripple subfloor is 32-46mm.

3. as claims 1 described refrigerated container, it is characterized in that: the depth of convolution of described ripple subfloor is 36mm.

4. as claims 1 described refrigerated container, it is characterized in that: the width of described crest, trough equates.

5. as claims 1 described refrigerated container, it is characterized in that: described ripple hypotenuse width is all identical.

6. as claims 1 described refrigerated container, it is characterized in that: described crest, trough are tabular.

7. as claims 1 described refrigerated container, it is characterized in that: the connection mode of described subfloor and described bottom side beams is welding.

8. as claims 1 described refrigerated container, it is characterized in that: described floor is the T floor.

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