CN214731483U - Inward-opening self-tightening quick-opening manhole device and system - Google Patents
Inward-opening self-tightening quick-opening manhole device and system Download PDFInfo
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- CN214731483U CN214731483U CN202022538935.9U CN202022538935U CN214731483U CN 214731483 U CN214731483 U CN 214731483U CN 202022538935 U CN202022538935 U CN 202022538935U CN 214731483 U CN214731483 U CN 214731483U
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Abstract
The invention provides an inward opening self-tightening quick-opening manhole device and a system. The device includes: the connecting pipe, the outer cover, the inner plate, the sealing gasket, the rocker arm assembly, the stud and the nut. The inner plate and the outer cover are respectively positioned on the inner side and the outer side of the connecting pipe, and the sealing gasket positioned between the connecting pipe and the inner plate is tightly pressed through the stud and the nut; the inner side of the outer cover is connected with a supporting plate; the connecting pipe is connected with the container, and a handle I is welded on the outer wall of the connecting pipe; the outer side of the inner manhole plate is connected with a handle II and a guide plate, and the inner side of the inner manhole plate is connected with a rocker arm assembly. The rocker arm assembly includes: the connecting plate, the rotating sleeve, the positioning assembly, the rocker arm, the fixing plate and the reinforcing plate are positioned on the inner side of the container. The connecting plate is connected with the inner plate, two ends of the rocker arm are connected with the rotating sleeve, the cylindrical shaft penetrates through the connecting plate and the rotating sleeve to connect the rocker arm with the inner plate, and the rocker arm is positioned through the positioning assembly; the fixed plate is connected with the container wall, and through reinforcing plate reinforcing stability, adopt the cylinder axle to connect fixed plate and rotation sleeve. The embodiment of the invention can realize self-tightening sealing under internal pressure.
Description
Technical Field
The invention relates to the technical field of manholes, in particular to an inward opening type self-tightening quick-opening manhole device and system.
Background
Manholes are open structures for personnel to enter and exit equipment for installation, maintenance and safety inspection, and are widely used in pressure vessels such as tanks. In a traditional manhole, a short section or a connecting pipe is generally connected to the outer part of a container, a flange is connected to the outer end of the container, and a manhole cover is fastened with the flange through bolts or clamps to achieve the opening and sealing functions. Therefore, high pressure generated inside the container is borne by the bolts or the clamps, the manhole device is heavy, the disassembly and assembly procedures are complicated during opening and closing, and the workability is reduced. To this end, we provide an inward opening self-tightening quick-opening manhole device and system to solve the above problems.
Disclosure of Invention
The embodiment of the invention aims to provide an inward opening type self-tightening quick-opening manhole device and system, which have the advantages of simplifying the structure, reducing the weight and reducing the disassembly and assembly procedures on the premise of ensuring the sealing property and the safety of the manhole.
The embodiment of the invention provides an inward opening self-tightening quick-opening manhole device, which comprises: the connecting pipe, the outer cover, the inner plate, the sealing gasket and the rocker arm assembly are arranged on the outer side of the rocker arm; the inner plate is positioned on the inner side of the connecting pipe, and the inner plate and the connecting pipe are sealed by a sealing gasket; the outer cover is positioned on the outer side of the connecting pipe, and a supporting plate is fixed on the inner side of the outer cover; the connecting pipe is connected with the container, and a handle I is fixed on the outer wall of the connecting pipe; a handle II and a guide plate are fixed on the outer side of the inner plate, and the inner side of the inner plate is connected with the rocker arm assembly;
the rocker arm assembly includes: the connecting plate, the rotating sleeve, the cylindrical shafts I and II, the positioning assembly, the rocker arm and the fixing plate are positioned in the container; the rocker arm is connected with the inner plate through the connecting plate and the rotating sleeve, the cylindrical shaft I penetrates through the connecting plate and the rotating sleeve to connect the rocker arm with the inner plate, and the cylindrical shaft I is positioned through the positioning assembly; the fixed plate is connected with the wall of the container, the cylindrical shaft II penetrates through the fixed plate and the rotating sleeve to connect the rocker arm with the fixed plate, and the cylindrical shaft II is positioned through the positioning assembly.
Alternatively, the adapter tube may be forged and the shape of the bore may include circular, elliptical or oblong.
Optionally, the locating assembly comprises a pin and a washer, the pin passing through a hole in the end of the cylindrical shaft to compress the washer.
Optionally, the inward opening self-tightening quick-opening manhole device further comprises a stud and a nut, the stud penetrates through the inner plate and the outer cover and is in threaded connection with the nut, and the number of the studs is greater than or equal to two.
Optionally, the inner plate and the sealing surface of the nipple have a surface roughness value Ra of less than or equal to 3.2.
Optionally, the form of the seal between the inner plate and the nipple comprises a flat face seal, a concavo-convex face seal or a tongue and groove face seal.
Optionally, the sealing pad comprises a wave tooth pad, a wound pad or a metal pad.
Optionally, a reinforcing plate is disposed on the fixing plate.
Optionally, a protective sleeve is arranged outside the handles I and ii, and the material of the protective sleeve comprises soft rubber or plastic.
The embodiment of the invention also provides an inward opening self-tightening quick-opening manhole system which comprises the inward opening self-tightening quick-opening manhole device.
It can be seen that the internally-opened self-tightening quick-opening manhole device overcomes the defects of stud bearing of the traditional manhole device, simplifies the structure and lightens the weight. When the sealing device works, the pressure in the container acts on the inner plate to generate the contact stress of the sealing gasket, so that the sealing effect is achieved. The studs only play a pre-tightening role, the borne load is very small, and the requirement can be met without arranging a plurality of studs. When the opening device is opened, the nuts at the position 2 are unscrewed, the inward opening can be realized, and the operation steps are simple and convenient. The hand hole formed on the outer cover facilitates manual operation of the inner plate during opening and closing, and the arrangement of the support plate enhances the stability of the outer cover and plays a certain positioning role; the guide plate on the outer side of the inner plate plays a good role in guiding when the inner plate is opened and closed, and the centering performance of the inner plate and the connecting pipe is improved; the arrangement of the handles I and II and the protective sleeves facilitates the entry of maintenance personnel. In addition, the inner plate is opened inwards, and the space utilization rate is improved. Therefore, the embodiment of the invention can ensure good sealing performance under high internal pressure without a large number of studs for fastening, thereby really reducing the weight of the equipment, reducing the size of the equipment and simplifying the opening and closing operation steps.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the description of the embodiments will be briefly introduced below. It is to be expressly understood, however, that the drawings are for the purpose of illustrating preferred embodiments only and are not to be construed as limiting the invention. Like reference symbols in the various drawings indicate like elements throughout.
Fig. 1 is a sectional view of an inward opening self-tightening quick-opening manhole device provided in an embodiment of the present invention;
fig. 2 is a left side view of the inward opening self-tightening quick-opening manhole device provided in the embodiment of the present invention;
fig. 3 is a top view of the inward opening self-tightening quick-opening manhole device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problems of the existing manhole device, the embodiment of the invention provides an inward opening self-tightening quick-opening manhole device.
Referring to fig. 1, a cross-sectional view of an internally-open self-tightening quick-opening manhole device according to an embodiment of the present invention is shown. As shown in fig. 1, the internally-opened self-tightening quick-opening manhole device is connected to a container through a nipple 3. The inner plate 5 is positioned in the container, the outer cover 1 is respectively positioned at the outer sides of the connecting pipes 3, and the sealing gaskets 4 positioned between the connecting pipes 3 and the inner plate 5 are tightly pressed through the studs 13 and the nuts 14; the outer cover 1 is provided with a hand hole and 2 bolt unthreaded holes, and the inner side of the outer cover is connected with a support plate 11; a handle I.2 is fixed on the outer wall of the connecting pipe 3; the manhole inner plate 5 is provided with 2 threaded holes, the outer side of the manhole inner plate is fixed with handles II and 12 and a guide plate 10, and the inner side of the manhole inner plate is connected with the rocker arm assembly.
The rocking arm subassembly is located the container inboard, is the structure of connecting manhole inner panel 5 and container wall to the realization opens and shuts, includes: connecting plate 9, rotating sleeve 15, cylindrical shaft 6, positioning assembly (washer 7, pin 8), rocker arm 16, fixed plate 17 and reinforcing plate 18. The connecting plate 9 is connected with the inner plate 5, two ends of the rocker arm 16 are connected with the rotating sleeves 15, the cylindrical shaft 6 penetrates through the connecting plate 9 and the rotating sleeves 15 to connect the rocker arm 16 with the inner plate 5, and the cylindrical shaft 6 is positioned through the positioning assembly; the fixing plate 17 is connected with the container wall and is enhanced in stability through the reinforcing plate 18; the cylindrical shaft 6 passes through the fixed plate 17 and the rotating sleeve 15 to connect the rocker arm 16 with the container, and the cylindrical shaft 6 is positioned by the positioning assembly.
Alternatively, the adapter tube 1 is forged, and the shape of the inner hole of the adapter tube comprises a circle, an ellipse or an oblong;
optionally, the locating assembly comprises a washer 7 and a pin 8, the pin 7 passing through a hole in the end of the cylindrical shaft 6 to compress the washer 7.
Alternatively, the studs 13 penetrate through the inner plate 5 and the outer cover 1 and are screwed with the nuts 14, and the number of the studs 13 is greater than or equal to two.
Alternatively, the surface roughness value Ra of the sealing surfaces of the inner plate 5 and the nipple 3 is less than or equal to 3.2.
Alternatively, the form of the seal between the inner plate 5 and the nipple 3 may comprise a flat seal, a concavo-convex seal or a tongue-and-groove seal.
Alternatively, the sealing pad 4 includes a wave-tooth pad, a wound pad, or a metal pad.
Optionally, a reinforcing plate 18 is provided on the fixing plate 17.
Optionally, a protective sleeve is arranged outside the handles I2 and II 12, and the material of the protective sleeve comprises soft rubber or plastic.
In order to facilitate the understanding of the present invention by those skilled in the art, the following describes an assembly process and an operation principle of the inward opening self-tightening quick-opening manhole device according to an embodiment of the present invention with reference to the drawings.
In the embodiment of the invention, all components and parts are formed separately. In actual assembly, the swing arm 16 is connected with the rotating sleeve 15, the fixed plate 17 is connected with the reinforcing plate 18, and then the rotating sleeve 15 is connected with the fixed plate 17 through the cylindrical shaft 6, the gasket 7 and the pin 8 outside the container. After the connecting plate 9, the guide plate 10, the handles II, 12 and the manhole inner plate 5 are connected, the rocker arm assembly and the container as well as the rocker arm assembly and the inner plate can be connected, so that the components in the container are assembled and molded. In addition, the connecting plate 11, the outer cover 1, the connecting tube 3 and the handle I.2 are connected and molded, so that the connecting tube 2 can be connected with the container. Finally, the sealing gasket 4 is installed in place, and the inner plate 5 and the outer cover 1 are slightly fastened by the stud 13 and the nut 14. Therefore, the inward-opening type quick-opening manhole device provided by the embodiment of the invention solves the problems of heavy weight and complex opening, closing and disassembling of the traditional manhole device, has a simple structure, realizes self-tightening sealing by the internal pressure of a container, and has strong practicability.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An internally open, self-tightening, quick-open manhole device comprising: the connecting pipe, the outer cover, the inner plate, the sealing gasket and the rocker arm assembly are arranged on the outer side of the rocker arm; the inner plate is positioned on the inner side of the connecting pipe, and the inner plate and the connecting pipe are sealed by a sealing gasket; the outer cover is positioned on the outer side of the connecting pipe, and a supporting plate is fixed on the inner side of the outer cover; the connecting pipe is connected with the container, and a handle I is fixed on the outer wall of the connecting pipe; a handle II and a guide plate are fixed on the outer side of the inner plate, and the inner side of the inner plate is connected with the rocker arm assembly;
the rocker arm assembly includes: the connecting plate, the rotating sleeve, the cylindrical shaft I, the cylindrical shaft II, the positioning assembly, the rocker arm and the fixing plate are positioned in the container; the rocker arm is connected with the inner plate through the connecting plate and the rotating sleeve, the cylindrical shaft I penetrates through the connecting plate and the rotating sleeve to connect the rocker arm with the inner plate, and the cylindrical shaft I is positioned through the positioning assembly; the fixed plate is connected with the wall of the container, the cylindrical shaft II penetrates through the fixed plate and the rotating sleeve to connect the rocker arm with the fixed plate, and the cylindrical shaft II is positioned through the positioning assembly.
2. The internally open, self-tightening quick-opening manhole device according to claim 1, wherein the adapter tube is forged, and the shape of the inner hole thereof includes a circular shape, an oval shape, or an oblong shape.
3. The internally open, self-tightening quick-opening manhole device according to claim 1, wherein the positioning assembly comprises a pin and a washer, and the pin penetrates through the holes at the ends of the cylindrical shafts I and II to press the washer.
4. The internally open, self-tightening, quick-opening manhole device according to claim 1, further comprising: the stud penetrates through the inner plate and the outer cover and is in threaded connection with the nut, and the number of the studs is greater than or equal to two.
5. The internally-open, self-tightening quick-opening manhole device according to claim 1, wherein the sealing surfaces of the inner plate and the nipple have a surface roughness value Ra of 3.2 or less.
6. The internally open, self-tightening, quick-opening manhole assembly as claimed in claim 1, wherein the form of the seal between the inner plate and the nipple comprises a flat seal, a concavo-convex seal, or a tongue and groove seal.
7. The internally open, self-tightening quick-opening manhole device according to claim 1, wherein the sealing gasket comprises a corrugated, wound or metal gasket.
8. The internally open, self-tightening quick-opening manhole device according to claim 1, wherein a reinforcing plate is provided on the fixing plate.
9. The inward opening, self-tightening, quick-opening manhole device according to claim 1, wherein the handles I and II are externally provided with a protective sleeve, and the material of the protective sleeve comprises soft rubber or plastic.
10. An internally open, self-tightening, quick-opening manhole system comprising an internally open, self-tightening, quick-opening manhole device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022538935.9U CN214731483U (en) | 2020-11-05 | 2020-11-05 | Inward-opening self-tightening quick-opening manhole device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022538935.9U CN214731483U (en) | 2020-11-05 | 2020-11-05 | Inward-opening self-tightening quick-opening manhole device and system |
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| CN214731483U true CN214731483U (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112298837A (en) * | 2020-11-05 | 2021-02-02 | 北京化工大学 | Inward-opening self-tightening quick-opening manhole device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112298837A (en) * | 2020-11-05 | 2021-02-02 | 北京化工大学 | Inward-opening self-tightening quick-opening manhole device and system |
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