Sealing structure of generator mounting nut of refrigerated container

Abstract

The utility model provides a sealing structure for a generator mounting nut of a refrigerated container, which comprises the following components: a nut which is provided with a first through hole which comprises a threaded section with threads and a non-threaded section without threads; the non-threaded section is filled with the plug, the space between the outer wall of the plug and the non-threaded section is sealed by at least one sealing ring, the non-threaded section without threads is reserved in the nut, the sealing ring is arranged between the non-threaded section and the plug, and sealing of the plug and the nut is achieved through the sealing ring. The problem of water leakage caused by aging of sealing glue in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of containers, in particular to a sealing structure for mounting nuts of a generator of a refrigerated container. Background Art

[0002] Traditional refrigerators are equipped with two generator nuts at the front frame. In order to prevent water from entering the front corner column, PVC plugs are used to seal the ends of the generator nuts to prevent water from entering. After a long time, the plugs will age, and the surrounding sealants will also age, which will affect the sealing and cause corrosion inside the corner column, thereby exacerbating the rust inside the corner column and affecting the overall strength of the corner column. Utility Model Content

[0003] In order to solve at least one technical problem in the prior art, the utility model provides a sealing structure for mounting nuts of a refrigerated container generator.

[0004] According to one aspect of the utility model, a sealing structure for mounting nuts of generators in refrigerated containers is provided, comprising: a nut having a first through hole, the first through hole comprising a threaded section having threads and a non-threaded section having no threads; and a plug, the plug filling the non-threaded section, the outer wall of the plug and the non-threaded section being sealed by at least one sealing ring.

[0005] In some embodiments, the stopper further comprises a ring sleeve arranged around the stopper, the ring sleeve is sleeved outside the nut, and the inner wall of the ring sleeve is provided with barbs extending toward the rear end of the ring sleeve.

[0006] In some embodiments, the outer wall of the stopper is provided with two sealing rings.

[0007] In some embodiments, an outer wall of the stopper is provided with an annular groove, and a sealing ring is arranged in the annular groove.

[0008] In some embodiments, the inner side of the tail end of the annular sleeve is provided with a first annular extension portion extending toward the center, the first annular extension portion is arranged to form a second through hole, the outer wall of the tail end of the plug is provided with a second annular extension portion extending in all directions, the plug passes through the second through hole to fill the non-threaded section, the second annular extension portion is located on the outside of the first annular extension portion, and the orthographic projection of the second annular extension portion along the axial direction at least partially overlaps with the first annular extension portion.

[0009] In some embodiments, the first annular extension portion is provided with an annular groove facing the second annular extension portion, the groove extends along the circumferential direction of the first annular extension portion, and the second extension portion is at least partially disposed in the groove.

[0010] In some embodiments, the collar is integral with the stopper.

[0011] In some embodiments, the nuts are secured to corner posts of the container.

[0012] The utility model leaves a non-threaded section without threads inside the nut, arranges a sealing ring between the non-threaded section and the plug, and seals the plug and the nut through the sealing ring, thereby overcoming the water leakage problem caused by aging of the sealing glue in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the sealing structure of a refrigerated container generator mounting nut according to an embodiment of the present disclosure is shown.

[0014] Figure 2 A partial enlarged view of the sealing structure of a refrigerated container generator mounting nut according to an embodiment of the present disclosure is shown.

[0015] Figure 3 A cross section of a plug of a sealing structure for mounting a nut of a generator in a refrigerated container according to an embodiment of the present disclosure is shown.

[0016] Figure 4 A cross section of a ring sleeve of a sealing structure of a refrigerated container generator mounting nut according to an embodiment of the present disclosure is shown.

[0017] Explanation of symbols:

[0018] Nut 1, plug 2, first through hole 3, threaded section 4, non-threaded section 5, sealing ring 6, annular groove 7, ring sleeve 8, barb 9, first annular extension 10, second through hole 11, second annular extension 12, groove 13, corner column 14 DETAILED DESCRIPTION

[0019] The following embodiments of the technical solution of the present disclosure are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present disclosure, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0020] According to a preferred embodiment of the present disclosure, please combine Figure 1 and Figure 2 The sealing structure of the refrigerated container generator mounting nut includes a nut 1 and a plug 2. The nut 1 has a first through hole 3. The first through hole 3 includes a threaded section 4 with threads and a non-threaded section 5 without threads. The plug 2 fills the non-threaded section 5. The outer wall of the plug 2 and the non-threaded section 5 are sealed by at least one sealing ring 6.

[0021] The nut 1 can be fixed on the corner post 14 of the container to install the generator of the refrigerated container.

[0022] The material of the plug 2 may be PVC, and the material of the sealing ring 6 may be rubber.

[0023] The plug 2 may fill the non-threaded section 5 completely or partially.

[0024] The present invention leaves a non-threaded section 5 without threads inside the nut 1, and sets a sealing ring 6 between the non-threaded section 5 and the plug 2, so as to achieve sealing between the plug 2 and the nut 1 through the sealing ring 6, thereby overcoming the water leakage problem caused by aging of the sealing glue in the prior art.

[0025] In one embodiment, please refer to Figure 2 The outer wall of the plug 2 is provided with two sealing rings 6. The double-layer sealing better prevents water from entering the nut 1.

[0026] Furthermore, please combine Figure 3 The outer wall of the plug 2 is provided with an annular groove 7, and the sealing ring 6 is arranged in the annular groove 7. The annular groove 7 limits the sealing ring 6, and can avoid the problem of poor sealing caused by the distortion of the sealing ring 6 when the plug 2 is inserted into the non-threaded section 5.

[0027] In one embodiment, please refer to Figure 3 The plug 2 further comprises a ring sleeve 8 arranged around the plug 2, the ring sleeve 8 is sleeved outside the nut 1, and the inner wall of the ring sleeve 8 is provided with barbs 9 extending toward the tail end of the ring sleeve 8. The material of the ring sleeve 8 can be PVC. The barbs 9 structure distributed on the inner wall of the ring sleeve 8 makes it difficult for the ring sleeve 8 to fall off from the nut 1.

[0028] In one embodiment, the ring sleeve 8 and the plug 2 are split structures, that is, the ring sleeve 8 and the plug 2 are two independent components. For example, please refer to Figure 2-4 The inner side of the tail end of the ring sleeve 8 is provided with a first annular extension portion 10 extending toward the center, and the first annular extension portion 10 is arranged to form a second through hole 11. The outer wall of the tail end of the plug 2 is provided with a second annular extension portion 12 extending in all directions. The plug 2 passes through the second through hole 11 to fill the non-threaded section 5. The second annular extension portion 12 is located outside the first annular extension portion 10, and the orthographic projection of the second annular extension portion 12 along the axial direction at least partially overlaps with the first annular extension portion 10. The orthographic projection of the second annular extension portion 12 along the axial direction at least partially overlaps with the first annular extension portion 10, which can prevent the plug 2 from being excessively inserted into the non-threaded section 5, that is, when the second annular extension portion 12 is attached to the first annular extension portion 10, the plug 2 is filled in place. In addition, the second annular extension portion 12 presses on the first annular extension portion 10 to limit the ring sleeve 8 from coming out.

[0029] In other embodiments, the ring sleeve 8 and the plug 2 may be an integral structure.

[0030] In one embodiment, please refer to Figure 2-4The first annular extension portion 10 is provided with an annular groove 13 facing the second annular extension portion 12 . The groove 13 extends along the circumferential direction of the first annular extension portion 10 , and the second annular extension portion 12 is at least partially disposed in the groove 13 . Figure 2 and Figure 4 The groove 13 shown is connected to the inner edge of the first annular extension portion 10 . In other embodiments, the groove 13 may not be connected to the inner edge of the first annular extension portion 10 , that is, there is a distance between the groove 13 and the inner edge of the first annular extension portion 10 .

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The sealing structure of the refrigerated container generator mounting nut is characterized by: include: A nut having a first through hole, wherein the first through hole includes a threaded section having threads and a non-threaded section having no threads; as well as A plug fills the non-threaded section, and the outer wall of the plug and the non-threaded section are sealed by at least one sealing ring.

2. The sealing structure of the refrigerated container generator mounting nut according to claim 1, characterized in that: The plug also includes a ring sleeve arranged around the plug, the ring sleeve is sleeved outside the nut, and the inner wall of the ring sleeve is provided with barbs extending toward the tail end of the ring sleeve.

3. The sealing structure of the refrigerated container generator mounting nut according to claim 1, characterized in that: The outer wall of the plug is provided with two sealing rings.

4. The sealing structure of the refrigerated container generator mounting nut according to claim 1, characterized in that: The outer wall of the plug is provided with an annular groove, and the sealing ring is arranged in the annular groove.

5. The sealing structure of the refrigerated container generator mounting nut according to claim 2, characterized in that: The inner side of the tail end of the ring sleeve is provided with a first annular extension portion extending toward the center, and the first annular extension portion is arranged to form a second through hole. The outer wall of the tail end of the plug is provided with a second annular extension portion extending in all directions. The plug passes through the second through hole to fill the non-threaded section, the second annular extension is located outside the first annular extension, and an orthographic projection of the second annular extension in the axial direction at least partially overlaps with the first annular extension.

6. The sealing structure of the refrigerated container generator mounting nut according to claim 5, characterized in that: The first annular extension portion is provided with an annular groove facing the second annular extension portion, the groove extends along the circumferential direction of the first annular extension portion, and the second annular extension portion is at least partially disposed in the groove.

7. The sealing structure of the refrigerated container generator mounting nut according to claim 2, characterized in that: The annular sleeve is integral with the plug.

8. The sealing structure of the refrigerated container generator mounting nut according to claim 1, characterized in that: The nuts are fixed on the corner posts of the container.

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