CN216424677U

CN216424677U - Manhole seal assembly

Info

Publication number: CN216424677U
Application number: CN202123363600.9U
Authority: CN
Inventors: 明水林
Original assignee: YICHANG DAMEN SHIP CO Ltd
Current assignee: YICHANG DAMEN SHIP CO Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-05-03
Anticipated expiration: 2031-12-29

Abstract

The utility model provides a manhole seal assembly, it including fix in manhole department and with the collar of manhole intercommunication, the collar upper end is located the manhole and covers outward and be provided with the apron, fixedly connected with clamping cylinder on the apron, the elastic ring of fixedly connected with and clamping cylinder upper end elasticity pressfitting on the collar inner wall, the threaded ring of still fixedly connected with and clamping cylinder lower extreme threaded connection on the collar inner wall. The utility model discloses a cooperation of clamping cylinder and elastic ring and screw ring for this subassembly compressive capacity can promote, is difficult for being broken away by internal pressure, and this subassembly is also more convenient when dismantling simultaneously, directly rotate the apron can.

Description

Manhole seal assembly

Technical Field

The utility model relates to a boats and ships auxiliary assembly technical field especially relates to a manhole seal assembly.

Background

Manholes are required at some locations on the vessel through which maintenance personnel can access the interior of the equipment for maintenance. In general, a general manhole is closed by a door body, and a buffer (such as rubber) is arranged between the door body and equipment to achieve a certain sealing effect. However, in some locations where the sealing requirement is high, the door may be opened due to the excessive air pressure inside the device, which may result in the sealing failure (for example, the door may be opened due to the gas generated in the tank for storing domestic sewage on the ship).

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a manhole seal assembly, it has solved among the prior art problem that the door body is easily broken open and leads to sealed inefficacy.

According to the embodiment of the utility model, a manhole sealing component comprises a mounting ring which is fixed at the manhole and is communicated with the manhole, the upper end of the mounting ring is positioned outside the manhole and is covered with a cover plate, a pressing cylinder is fixedly connected on the cover plate, an elastic ring which is elastically pressed with the upper end of the pressing cylinder is fixedly connected on the inner wall of the mounting ring, and a threaded ring which is in threaded connection with the lower end of the pressing cylinder is also fixedly connected on the inner wall of the mounting ring; the cover plate is fixedly connected with a hollow handle, the handle is communicated with the pressing cylinder, and a valve is arranged on the handle.

In the above embodiment, the elastic compression of the compression cylinder and the elastic ring is used for realizing sealing, and the sealing is kept through the threaded connection between the compression cylinder and the threaded ring on the inner wall of the mounting ring, so that the assembly can resist certain internal air pressure, and the assembly is ensured not to be easily broken by the internal air pressure.

Furthermore, the upper surface of the lower plate surface of the cover plate is concavely provided with a first arc-shaped ring groove, the upper end surface of the mounting ring is concavely provided with a second arc-shaped ring groove opposite to the first arc-shaped ring groove, and a ball is arranged between the first arc-shaped ring groove and the second arc-shaped ring groove.

Furthermore, at least two oil injection holes communicated with the first arc-shaped annular groove are also formed in the cover plate.

Furthermore, a bolt is clamped in the oil injection hole.

Further, the outer edge of the cover plate is bent downward to form a water diversion ring.

Further, the pressing cylinder comprises a pressing section matched with the elastic ring and a thread section matched with the thread ring, wherein the pressing section is of a structure with a large upper end and a small lower end.

Further, the handle includes interconnect's solid section and hollow section, and the one end that solid section and hollow section carried on the back mutually all with apron fixed connection, wherein hollow section is through setting up passageway and the compressing cylinder intercommunication in the apron, and the valve setting is on hollow section.

Compared with the prior art, the utility model discloses following beneficial effect has:

through the cooperation of clamping cylinder and elastic ring and screw ring for this subassembly compressive capacity can promote, is difficult for being broken away by internal pressure, and this subassembly is also more convenient when dismantling simultaneously, and direct to the apron rotate can.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

fig. 2 is a schematic top view of a cover plate according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

FIG. 4 is an enlarged view of a portion B of FIG. 1;

in the above drawings:

the device comprises a mounting ring 1, a cover plate 2, a pressing cylinder 3, an elastic ring 4, a threaded ring 5, a water diversion ring 6, a pressing section 7, a threaded section 8, a handle 9, a ball 10, an oil filling hole 11, a bolt column 12, a valve 13, a solid section 14 and a hollow section 15.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1, 2, 3, and 4, the present embodiment provides a manhole sealing assembly, which includes an installation ring 1 fixed at a manhole and communicated with the manhole, the upper end of the installation ring 1 is located outside the manhole and covered with a cover plate 2, the cover plate 2 is fixedly connected with a pressing cylinder 3, the inner wall of the installation ring 1 is fixedly connected with an elastic ring 4 elastically pressed with the upper end of the pressing cylinder 3, the inner wall of the installation ring 1 is further fixedly connected with a threaded ring 5 screwed with the pressing cylinder 3, the outer edge of the cover plate 2 is bent downward to form a water diversion ring 6, and water on the cover plate 2 leaves the assembly through the lowest part of the water diversion ring 6 and cannot migrate to the installation ring 1; still the handle 9 of fixedly connected with cavity setting on the apron 2, be provided with valve 13 on handle 9 and the 3 intercommunication of compression cylinder and the handle 9, can open valve 13 and release the atmospheric pressure in the people's hole like this before opening apron 2, and then make apron 2 open more easily, also can more conveniently rotate apron 2 through handle 9 simultaneously to open apron 2.

In the embodiment, the sealing is realized by the elastic compression of the compression cylinder 3 and the elastic ring 4, and the sealing is kept by the threaded connection between the compression cylinder 3 and the threaded ring 5 on the inner wall of the mounting ring 1, so that the assembly can resist certain internal air pressure, and the assembly is ensured not to be easily broken by the internal air pressure;

specifically, when the air pressure impacts outwards, an outward pushing force is provided, and at the moment, the threaded connection between the arranged threaded ring 5 and the pressing cylinder 3, the pushing force can be prevented from directly pushing the pressing cylinder outwards, particularly, the elastic ring 4 is made of elastic rubber material as in the prior art, the pressing cylinder 3 comprises a pressing section 7 matched with the elastic ring 4 and a thread section 8 matched with the thread ring 5, wherein the compressing section 7 has a structure with a large upper end and a small lower end, the structure with the large upper end and the small lower end of the compressing section 7 enables the cover plate 2 to be clamped on the mounting ring 1 more easily, meanwhile, the diameter of the set thread section 8 is consistent with the diameter of the small end of the pressing section 7, so that after the cover plate 2 is clamped into the mounting ring 1, the thread section 8 can be easily connected with the set thread, then, the connection of the thread section 8 can be realized by continuously rotating the cover plate 2, and meanwhile, the elastic compression of the compression section 7 and the elastic ring 4 is realized;

further, the structure of the elastic ring 4 is similar to that of the compression section 7, but the inner diameter of the elastic ring 4 is smaller than that of the compression section 7 in the initial state, specifically, the inner diameter of the upper end of the elastic ring 4 is larger than the outer diameter of the lower end of the compression section 7, so that the compression section 7 can smoothly enter the elastic ring 4 and the thread section 8 is in contact with the thread ring 5, then the cover plate 2 is rotated to enable the thread section 8 to continue to be in threaded connection with the thread ring 5, and finally the compression section 7 and the elastic ring 4 are completely compacted, and meanwhile, the thread section 8 and the thread ring 5 are completely in threaded connection.

As shown in fig. 1 and 3, in order to further improve the sealing performance of the assembly, a first arc-shaped ring groove is concavely arranged on the lower plate surface of the cover plate 2, a second arc-shaped ring groove opposite to the first arc-shaped ring groove is concavely arranged on the upper end surface of the mounting ring 1, a ball 10 is arranged between the first arc-shaped ring groove and the second arc-shaped ring groove, wherein grease is filled between the first arc-shaped ring groove and the second arc-shaped ring groove, the air tightness between the cover plate 2 and the mounting ring 1 is further improved, in order to facilitate the filling of the grease, at least two oil injection holes 11 communicated with the first arc-shaped ring groove are also started on the cover plate 2, studs 12 are also clamped in the oil injection holes 11, and the oil injection holes 11 are blocked by the studs 12 after the grease is filled.

As shown in fig. 1 and 3, the balls 10 are also arranged to make it easier to open the cover 2, i.e. the balls 10 assist the cover 2 to rotate relative to the mounting ring 1 under the lubricating action of grease during rotation.

As shown in fig. 1 and 4, in particular, the handle 9 includes a solid section 14 and a hollow section 15 connected to each other, and both ends of the solid section 14 opposite to the hollow section 15 are fixedly connected to the cover plate 2, wherein the hollow section 15 is communicated with the compression cylinder 3 through a channel arranged in the cover plate 2, and the valve 13 is arranged on the hollow section 15. This enables the whole handle 9 to be a solid structure in most of the structure, and the joint between the hollow section 15 and the cover plate 2 can be ensured not to be broken by air pressure by increasing the joint strength, so as to ensure the joint strength between the whole handle 9 and the cover plate 2.

Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A manhole sealing assembly is characterized by comprising a mounting ring which is fixed at a manhole and communicated with the manhole, wherein the upper end of the mounting ring is positioned outside the manhole and covered with a cover plate; the cover plate is fixedly connected with a hollow handle, the handle is communicated with the pressing cylinder, and a valve is arranged on the handle.

2. The manhole seal assembly according to claim 1, wherein the lower plate surface of the cover plate is concavely provided with a first arc-shaped ring groove, the upper end surface of the mounting ring is concavely provided with a second arc-shaped ring groove opposite to the first arc-shaped ring groove, and a ball is arranged between the first arc-shaped ring groove and the second arc-shaped ring groove.

3. The manhole seal assembly of claim 2, wherein the cover plate further defines at least two oil injection holes in communication with the first arcuate ring groove.

4. A manhole seal assembly as claimed in claim 3, wherein a bolt is also clamped within the filler hole.

5. The manhole seal assembly of claim 1, wherein the outer edge of the cover plate is bent downward to form a water diversion ring.

6. The manhole seal assembly of claim 1, wherein the compression cylinder includes a compression section engaged with the elastic ring and a threaded section engaged with the threaded ring, wherein the compression section has a configuration with a large upper end and a small lower end.

7. The manhole seal assembly of claim 1, wherein the handle comprises a solid section and a hollow section connected to each other, opposite ends of the solid section and the hollow section are fixedly connected to the cover plate, the hollow section is communicated with the pressing cylinder through a channel disposed in the cover plate, and the valve is disposed on the hollow section.