CN218477989U - Manhole cover opening and closing system capable of being opened in horizontal position and sealed in expansion and compression - Google Patents
Manhole cover opening and closing system capable of being opened in horizontal position and sealed in expansion and compression Download PDFInfo
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- CN218477989U CN218477989U CN202222567494.4U CN202222567494U CN218477989U CN 218477989 U CN218477989 U CN 218477989U CN 202222567494 U CN202222567494 U CN 202222567494U CN 218477989 U CN218477989 U CN 218477989U
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- manhole cover
- positioning plate
- opening
- sealing ring
- swing rod
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Abstract
The utility model belongs to the equipment of opening and shutting, concretely relates to manhole cover system that open in flat position, expand and press sealed, including locating plate and the manhole cover with locating plate swing joint, the outward flange of manhole cover is equipped with a pendulum rod, the middle section of pendulum rod through the minor axis with the marginal normal running fit of locating plate, be equipped with the cylinder between pendulum rod and the locating plate, the inboard of manhole cover is equipped with the annular groove with manhole cover coaxial distribution, be equipped with the sealing washer that can aerify in the annular groove, the side of sealing washer is equipped with the pressurization trachea, the pressurization trachea communicates with the inside of sealing washer; still include air pump, solenoid valve and gas delivery pipe, the utility model discloses simple structure, seal stability is higher, opens and closes the manhole cover through pneumatic mode, has practiced thrift physical power, utilizes the mode of flat-open to open the manhole cover, can not cause the space of door opening department to block up, easy access and feed.
Description
Technical Field
The utility model belongs to equipment of opening and shutting, concretely relates to sealed manhole cover system of opening and shutting of flat position opening, bloated pressure.
Background
Manhole covers are widely used on tank containers, as door openings for personnel to enter the tank, and also as charging openings for the tank.
At present common manhole cover when opening and closing, through mode compacting such as artifical spinning and seal the adhesive tape and realize sealing up, because rely on artifical manual opening and closing, one needs to consume workman's physical power, and two come the reliability slightly poor, be not convenient for manual maintenance and feed. A manhole cover opening and closing system with horizontal opening and expansion sealing is designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sealed manhole cover system that opens, expands to press of flat position.
To achieve the purpose, the utility model adopts the following technical proposal:
the manhole cover opening and closing system comprises a positioning plate and a manhole cover, wherein the positioning plate is installed on a door opening of a tank container, the manhole cover is movably connected with the positioning plate, through holes which are coaxially distributed with the door opening are formed in the positioning plate, a swing rod is arranged on the outer edge of the manhole cover, the middle section of the swing rod is in rotating fit with the edge of the positioning plate through a short shaft, an air cylinder is arranged between the swing rod and the positioning plate, one end of the air cylinder is hinged to the positioning plate, and the other end of the air cylinder is hinged to the end part of the swing rod;
an annular groove which is coaxially distributed with the manhole cover is formed in the inner side of the manhole cover, a sealing ring capable of being inflated is arranged in the annular groove, a pressurizing air pipe is arranged at the side end of the sealing ring, and the pressurizing air pipe is communicated with the inside of the sealing ring;
still include air pump, solenoid valve and gas delivery pipe, gas delivery pipe one end is connected with the air pump, and the other end communicates with cylinder and pressurization trachea respectively, and the solenoid valve is installed on gas delivery pipe.
Preferably, the sealing ring is of a hollow structure.
Preferably, the outer edge of the positioning plate is provided with a limiting notch, the outer edge of the manhole cover is provided with a limiting protrusion corresponding to the limiting notch, when the cylinder is in a fully contracted state, the manhole cover covers the through hole, and the limiting protrusion moves into the corresponding limiting notch.
Has the advantages that: when the utility model is installed, the positioning plate is arranged on the tank container and is coaxially distributed with the door opening on the tank container, the air pump and the electromagnetic valve are both arranged on the tank container or a vehicle carrying the tank container, when the manhole cover is closed in use, the air cylinder is in an extending state, the sealing ring is in a pressurized and expanded state, and the manhole cover is in sealed contact with the positioning plate; when the manhole cover needs to be opened, the sealing ring is firstly decompressed, the air pump and the electromagnetic valve are utilized to start the air cylinder, the air cylinder is in a contraction state, the air cylinder pushes the swing rod to drive the manhole cover to rotate horizontally when contracting, the manhole cover is opened, and when the manhole cover needs to be closed, reverse operation can be carried out.
In the whole process, the air cylinder and the sealing ring are pressurized and decompressed through the air pump, the electromagnetic valve and the air conveying pipe, the manhole cover is not required to be manually opened and closed, labor is saved, and the sealing stability of the manhole cover when the manhole cover is closed is improved.
The utility model discloses simple structure, sealing stability is higher, opens and closes the manhole cover through pneumatic mode, has practiced thrift physical power, utilizes the mode of flat-open to open the manhole cover, can not cause the space of door opening department to block up, easy access and feed.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings in the embodiments of the present invention are briefly described below.
FIG. 1 is a schematic view of the present invention when the manhole cover is opened;
FIG. 2 is a schematic view of the present invention when the manhole cover is closed;
wherein: 1-positioning plate, 2-through hole, 3-limit notch, 4-manhole cover, 5-swing rod, 6-short shaft, 7-sealing ring, 8-pressurized air pipe, 9-air cylinder, 10-air pump, 11-electromagnetic valve, 12-air conveying pipe and 13-limit bulge.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the same, the same is shown by way of illustration only and not in the form of limitation; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.
Referring to fig. 1 and 2, the manhole cover opening and closing system for flat opening and inflation sealing comprises a positioning plate 1 installed on a door opening of a tank container and a manhole cover 4 movably connected with the positioning plate 1, wherein a through hole 2 coaxially distributed with the door opening is formed in the positioning plate 1, a swing rod 5 is arranged on the outer edge of the manhole cover 4, the middle section of the swing rod 5 is in rotating fit with the edge of the positioning plate 1 through a short shaft 6, an air cylinder 9 is arranged between the swing rod 5 and the positioning plate 1, one end of the air cylinder 9 is hinged to the positioning plate 1, and the other end of the air cylinder 9 is hinged to the end of the swing rod 5;
an annular groove (dotted line part in the figure, not shown) which is coaxially distributed with the manhole cover 4 is arranged on the inner side of the manhole cover 4, a sealing ring 7 (dotted line part in the figure) capable of being inflated is arranged in the annular groove, a pressurizing air pipe 8 is arranged at the side end of the sealing ring 7, and the pressurizing air pipe 8 is communicated with the inside of the sealing ring 7;
still include air pump 10, solenoid valve 11 and gas delivery pipe 12, gas delivery pipe 12 one end is connected with air pump 10, and the other end communicates with cylinder 9 and pressurization trachea 8 respectively, and solenoid valve 11 is installed on gas delivery pipe 12.
In this embodiment, the sealing ring 7 has a hollow structure.
In this embodiment, the outer edge of the positioning plate 1 is provided with a limiting notch 3, the outer edge of the manhole cover 4 is provided with a limiting protrusion 13 corresponding to the limiting notch 3, when the cylinder 9 is in a fully extended state, the manhole cover 4 covers the through hole 2, and the limiting protrusion 13 moves into the corresponding limiting notch 3.
Has the advantages that: when the utility model is installed, the positioning plate 1 is arranged on the tank container and is coaxially distributed with the door opening on the tank container, the air pump 10 and the electromagnetic valve 11 are both arranged on the tank container or a vehicle carrying the tank container, when in use, when the manhole cover 4 is closed, the air cylinder 9 is in an extending state, the sealing ring 7 is in a pressurized and expanded state, and the manhole cover 4 is in sealed contact with the positioning plate; when the manhole cover 4 needs to be opened, firstly, the sealing ring 7 is decompressed through the air pump 10 and the electromagnetic valve 11, the air pump 10 and the electromagnetic valve 11 are utilized to start the air cylinder, the air cylinder 9 is in a contraction state, the air cylinder 9 pushes the swing rod 5 to drive the manhole cover 4 to rotate in a horizontal position when contracting, so that the manhole cover 4 is opened, and when the manhole cover needs to be closed, the reverse operation can be carried out.
In the whole process, the air cylinder 9 and the sealing ring 7 are pressurized and decompressed through the air pump 10, the electromagnetic valve 11 and the air conveying pipe 12, the manhole cover 4 is not required to be opened and closed manually, labor is saved, and the sealing stability of the manhole cover when the manhole cover is closed is improved.
The utility model discloses simple structure, sealing stability is higher, opens and closes the manhole cover through pneumatic mode, has practiced thrift physical power, utilizes the mode of flat-open to open the manhole cover, can not cause the space of door opening department to block up, easy access and feed.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. A manhole cover opening and closing system with flat opening and expansion sealing comprises a positioning plate (1) arranged on a door opening of a tank container and a manhole cover (4) movably connected with the positioning plate (1), and is characterized in that through holes (2) coaxially distributed with the door opening are formed in the positioning plate (1), a swing rod (5) is arranged on the outer edge of the manhole cover (4), the middle section of the swing rod (5) is in rotating fit with the edge of the positioning plate (1) through a short shaft (6), an air cylinder (9) is arranged between the swing rod (5) and the positioning plate (1), one end of the air cylinder (9) is hinged to the positioning plate (1), and the other end of the air cylinder is hinged to the end of the swing rod (5);
an annular groove which is coaxially distributed with the manhole cover (4) is formed in the inner side of the manhole cover (4), a sealing ring (7) capable of being inflated is arranged in the annular groove, a pressurizing air pipe (8) is arranged at the side end of the sealing ring (7), and the pressurizing air pipe (8) is communicated with the inside of the sealing ring (7);
still include air pump (10), solenoid valve (11) and gas delivery pipe (12), gas delivery pipe (12) one end is connected with air pump (10), and the other end communicates with cylinder (9) and pressurization trachea (8) respectively, and solenoid valve (11) are installed on gas delivery pipe (12).
2. A manhole cover opening and closing system according to claim 1, wherein the sealing ring (7) is a hollow structure.
3. A manhole cover opening and closing system for flush opening and expansion and pressure sealing according to claim 1, wherein the locating plate (1) has a limiting notch (3) at its outer edge, the manhole cover (4) has a limiting protrusion (13) corresponding to the limiting notch (3) at its outer edge, the manhole cover (4) covers the through hole (2) when the cylinder (9) is in the fully retracted state, and the limiting protrusion (13) moves into the corresponding limiting notch (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222567494.4U CN218477989U (en) | 2022-09-26 | 2022-09-26 | Manhole cover opening and closing system capable of being opened in horizontal position and sealed in expansion and compression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222567494.4U CN218477989U (en) | 2022-09-26 | 2022-09-26 | Manhole cover opening and closing system capable of being opened in horizontal position and sealed in expansion and compression |
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| Publication Number | Publication Date |
|---|---|
| CN218477989U true CN218477989U (en) | 2023-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222567494.4U Active CN218477989U (en) | 2022-09-26 | 2022-09-26 | Manhole cover opening and closing system capable of being opened in horizontal position and sealed in expansion and compression |
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| Country | Link |
|---|---|
| CN (1) | CN218477989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116062322A (en) * | 2023-03-09 | 2023-05-05 | 中车齐齐哈尔车辆有限公司 | Tank body structure of tank truck and tank truck |
-
2022
- 2022-09-26 CN CN202222567494.4U patent/CN218477989U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116062322A (en) * | 2023-03-09 | 2023-05-05 | 中车齐齐哈尔车辆有限公司 | Tank body structure of tank truck and tank truck |
| CN116062322B (en) * | 2023-03-09 | 2024-05-10 | 中车齐齐哈尔车辆有限公司 | Tank body structure of tank truck and tank truck |
| WO2024183256A1 (en) * | 2023-03-09 | 2024-09-12 | 中车齐齐哈尔车辆有限公司 | Tank structure of tank truck, and tank truck |
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