Heat preservation manhole cover structure

Abstract

The utility model relates to the field of containers, in particular to a heat preservation manhole cover structure which is characterized in that a manhole cover covers a manhole formed in a top plate of a container, a heat preservation part and a sealing part are arranged on the inner side of the manhole cover, the sealing part is located on the outer ring of the heat preservation part, and heat preservation materials are filled in the heat preservation part; the container top plate comprises an inner top plate body and an outer top plate body, the space between the inner top plate body and the outer top plate body is filled with heat preservation materials, and a manhole ring corresponding to the manhole is arranged on the outer side of the outer top plate body. And when the manhole cover is closed, the manhole ring is tightly matched with the sealing part. The double-layer heat preservation top plate and the manhole cover filled with the heat preservation materials are used for being tightly matched, and the heat preservation and heat insulation functions of the manhole cover structure are improved.

Description

Technical Field

[0001] This utility model relates to the field of containers, specifically to an insulated manhole cover structure. Background Technology

[0002] Currently, the manhole cover structure used in containers on the market usually relies on a rubber gasket to achieve a tight seal between the manhole cover and the manhole. The top plate and manhole cover are also single-layer structures, which makes the heat insulation effect inside the container poor, and heat can easily dissipate from here. Utility Model Content

[0003] The purpose of this invention is to provide an insulated manhole cover structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an insulated manhole cover structure, wherein the manhole cover covers a manhole opened in the top plate of a container, the inner side of the manhole cover is provided with an insulation part and a sealing part, the sealing part is located on the outer ring of the insulation part, and the interior of the insulation part is filled with insulation material; the container top plate includes an inner top plate and an outer top plate, the space between the inner top plate and the outer top plate is filled with insulation material, and the outer side of the outer top plate is provided with a manhole ring corresponding to the manhole; when the manhole cover is closed, the manhole ring and the sealing part are tightly fitted together.

[0005] Preferably, the heat-insulating part is located in the middle of the manhole cover, and the manhole is located in the middle of the manhole ring; the cross-sections of the manhole cover, the heat-insulating part, and the manhole are all circular, and the three centers are coaxial when the manhole cover is closed.

[0006] Preferably, the cross-sectional diameter of the insulation part is larger than the cross-sectional diameter of the manhole, but smaller than the inner ring diameter of the manhole ring.

[0007] Preferably, a top plate sealing part is provided on the outer side of the outer top plate, and the top plate sealing part is located between the manhole ring and the manhole. When the manhole cover is closed, the heat insulation part and the top plate sealing part are indirectly engaged.

[0008] Preferably, the insulation part is provided with an annular sealing ring, the inner diameter of which is larger than the cross-sectional diameter of the manhole, and the outer diameter of which is smaller than the cross-sectional diameter of the insulation part; when the manhole cover is closed, the sealing ring is tightly fitted with the top plate sealing part.

[0009] Preferably, one outer end of the manhole cover is hinged to the outer top plate, and the outer top plate is also provided with a pressing device to press the manhole cover closed.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model uses a double-layered insulated top plate and a manhole cover filled with internal insulation material that fit together tightly to improve the thermal insulation function of the manhole cover structure.

[0012] 2. This utility model further enhances the sealing effect and improves the heat insulation effect through the double sealing part. Attached Figure Description

[0013] Figure 1 This is a cross-sectional schematic diagram of one embodiment of the present invention;

[0014] Figure 2 yes Figure 1 An enlarged schematic diagram. Detailed Implementation

[0015] Please see Figure 1 and Figure 2 This utility model embodiment discloses an insulated manhole cover structure, in which the manhole cover 2 covers the manhole 1 opened on the top plate of the container, and the cross-section of the manhole 1 is circular.

[0016] The container roof includes an inner roof panel 4 and an outer roof panel 5. Insulation material 6 is filled between the inner roof panel 4 and the outer roof panel 5. A roof sealing part 52 and a corresponding manhole ring 51 are provided on the outer side of the outer roof panel 5. The manhole 1 is located in the middle of the manhole ring 51, and the side of the manhole ring 51 not fixed to the outer roof panel 5 is curved. The roof sealing part 52 is located between the manhole ring 51 and the manhole 1. The roof sealing part 52 uses a sealing gasket, which is adhered to the outer surface of the outer roof panel 5.

[0017] The manhole cover 2 is a circular cover plate with edges bent in the same direction. One end of the outer side is hinged to the outer top plate 5. The outer top plate 5 is also provided with a pressing device to press the manhole cover 2 closed. The technology of the pressing device is already very mature and will not be described in detail in this utility model.

[0018] The manhole cover 2 has an insulation part 21 and a sealing part 22 on its inner side. The insulation part 21 is fixed to the middle of the manhole cover 2, is flat and cylindrical, and is filled with insulation material 6. The cross-section of the insulation part is circular. The sealing part 22 is located on the outer ring of the insulation part 21 and is an annular rubber gasket that is attached to the manhole cover 2. The inner ring of the annular rubber gasket contacts the insulation part 21, and the outer ring contacts the bent edge of the manhole cover 2.

[0019] The cross-sectional diameter of the insulation part 21 is larger than that of the manhole 1, but smaller than that of the inner ring diameter of the manhole ring 51. A sealing ring 23 is fixed to the outside of the insulation part 21. The sealing ring 23 is circular and located on the side of the insulation part 21 away from the manhole cover 2. The inner ring diameter of the sealing ring 23 is larger than that of the manhole 1, and the outer ring diameter of the sealing ring 23 is smaller than that of the insulation part 21.

[0020] When the manhole cover 2 is closed, the cross-sectional centers of the insulation part 21, the manhole cover 2 and the manhole 1 are coaxial, the manhole ring 51 is tightly fitted with the sealing part 22, the insulation part 21 is closed on the manhole 1, and is tightly fitted with the top plate sealing part 52 through the sealing ring 23.

[0021] In summary, this utility model uses a double-layered insulated top plate and a manhole cover filled with internal insulation material that fit together tightly, improving the thermal insulation function of the manhole cover structure; at the same time, the double sealing gaskets further enhance the sealing effect and improve the thermal insulation effect.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-insulated manhole cover structure, the manhole cover (2) covers a manhole (1) formed in a top plate of a container, characterized in that: The manhole cover (2) is provided with a heat preservation part (21) and a sealing part (22) on the inner side, the sealing part (22) is located at the outer circle of the heat preservation part (21), and the heat preservation part (21) is filled with heat preservation material (6) in the inside; the container top plate comprises an inner top plate (4) and an outer top plate (5), the inner top plate (4) and the outer top plate (5) are filled with heat preservation material (6) between them, and the outer side of the outer top plate (5) is provided with a manhole ring (51) corresponding to the manhole (1); when the manhole cover (2) is closed, the manhole ring (51) is tightly matched with the sealing part (22).

2. The heat-insulating manhole cover structure according to claim 1, characterized by: The heat preservation part (21) is located in the middle of the manhole cover (2), and the manhole (1) is located in the middle of the manhole ring (51); the cross sections of the manhole cover (2), the heat preservation part (21) and the manhole (1) are all circular, and the centers of the three circles are coaxial when the manhole cover (2) is closed.

3. The heat-insulating manhole cover structure according to claim 2, characterized by: The cross section diameter of the heat preservation part (21) is greater than the cross section diameter of the manhole (1) and less than the inner ring diameter of the manhole ring (51).

4. The heat-insulating manhole cover structure according to claim 3, characterized by: The outer side of the outer top plate (5) is provided with a top plate sealing part (52), the top plate sealing part (52) is located between the manhole ring (51) and the manhole (1), and the heat preservation part (21) is indirectly matched with the top plate sealing part (52) when the manhole cover (2) is closed.

5. The heat-insulating manhole cover structure according to claim 4, characterized by: The heat preservation part (21) is provided with a circular sealing ring (23), the inner ring diameter of the sealing ring (23) is greater than the cross section diameter of the manhole (1), and the outer ring diameter is less than the cross section diameter of the heat preservation part (21); when the manhole cover (2) is closed, the sealing ring (23) is tightly matched with the top plate sealing part (52).

6. The heat-insulating manhole cover structure according to claim 1, characterized by: One end of the outer side of the manhole cover (2) is hinged to the outer top plate (5), and the outer top plate (5) is further provided with a pressing device for pressing the closed manhole cover (2).

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