CN214567906U - Quick-opening manhole applied to ash conveying system - Google Patents

Abstract

The utility model discloses a quick-opening manhole applied to an ash conveying system, which comprises a flange, a flange cover, a hinge assembly arranged on the flange, and a quick-opening mechanism for connecting the flange and the flange cover; the end part of the flange is provided with a right-angled trapezoid groove; and an O-shaped sealing ring is arranged in the right-angled trapezoid groove. When the right trapezoid groove is adopted in the sealing groove of the utility model, the upper and lower surfaces of the flange have sealing function, and the side surface of the groove hardly has any sealing function, so that the upper and lower surfaces of the flange only need to be finely processed in the processing process, and no special requirement is made on the roughness of the side surface of the groove, thereby reducing the processing cost; under operating condition, the right trapezoid groove is more favorable to making O type sealing washer produce sufficient contact stress, reaches sealed effect, especially to the powder medium, under certain pressure, the slope of the lower one side of flange pressure sealed groove lateral wall has formed certain backward flow space for the medium is difficult to leak more.

Description

Quick-opening manhole applied to ash conveying system

Technical Field

The utility model relates to a manhole technical field, in particular to be applied to quick-open manhole among defeated grey system.

Background

The manhole of the pressure container is one of important parts on most pressure-bearing equipment, and almost all various pressure containers such as chemical engineering, pharmacy, food and the like need the manhole which is a key part. The manhole of the pressure container is wide in using amount, and relates to many factors of safety, function and cost, the current domestic standard is relatively comprehensive, but the design criterion fully considers the characteristics of high pressure, toxicity, explosiveness and the like of the chemical industry due to the fact that the manhole is basically compiled and continued by the chemical department, the manhole is often very heavy, the number of bolts is large, the cost is high, and the operation is extremely inconvenient; these characteristics are not suitable for the low-pressure, non-toxic and non-flammable working conditions of food pharmacy, ocean engineering, biochemical industry and the like which are increasingly popular.

Especially for the pressure vessel such as the storage tank, the buffer tank and the like in the ocean platform bulk material ash conveying system, the internal medium is cement, limestone, barite powder and other powdery materials, in order to realize the sufficient fluidization of the powder, the lower part of the vessel is usually provided with a section of conical shell ring, and the conical shell ring is also required to be provided with manholes, because of the installation and operation and maintenance requirements of internal parts, the manholes are basically large apertures of DN600 or DN650, and the requirement can be realized for quick opening and closing, the project is just to optimize and design the quick opening manholes which are applied to the ash conveying system and are arranged at the conical shell ring of the ash conveying system.

The standard manhole flange sealing surface is generally sealed by a convex surface, and the sealing surface has poor sealing effect on powdery materials and is easy to leak; the manhole cover is installed on the conical end socket along the radial direction, the turning radius is large when the manhole cover is opened, a large operation space is needed, and meanwhile, the manhole cover is not in a horizontal or vertical state and has a certain angle when being opened, an additional device is needed for fixing, the number of bolts is large, the dismounting is troublesome, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model provides a be applied to the quick-open manhole in defeated grey system.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

a quick-opening manhole applied to an ash conveying system comprises a flange, a flange cover, a hinge assembly arranged on the flange, and a quick-opening mechanism for connecting the flange and the flange cover; the end part of the flange is provided with a right-angled trapezoid groove; and an O-shaped sealing ring is arranged in the right-angled trapezoid groove.

Preferably, the quick-opening manhole applied to the ash conveying system further comprises a conical cylinder and a manhole shell ring, and the manhole shell ring is connected with the conical cylinder; the flange is connected with the side wall of the conical cylinder body through a manhole cylinder section.

Preferably, the quick-opening manhole applied to the ash conveying system further comprises a handle, and the handle is arranged on the flange cover.

Preferably, the quick-opening mechanism comprises a plurality of pressing components, an upper lug, a lower lug and a rotating mechanism; the flange is connected with the flange cover through a plurality of pressing components; the upper shaft lug is connected with the flange and is arranged at the upper end of the flange; the lower shaft lug is connected with the flange and is arranged at the lower end of the flange; the rotating mechanism sequentially penetrates through the lower shaft lug, the hinge assembly and the upper shaft lug.

Preferably, each of the pressing assemblies includes a guide shaft, a positioning block disposed at both ends of the guide shaft, and an eye bolt passing through the guide shaft.

Preferably, the flange and the flange cover are provided with a plurality of U-shaped openings at the edges, and one end of the swing bolt is arranged in the U-shaped openings.

Preferably, the contact position of the side wall of the O-shaped sealing ring and the inner side wall of the right trapezoid groove forms an included angle of 20-25 degrees.

Preferably, the upper shaft lug and the lower shaft lug are horizontally arranged; the rotating mechanism is perpendicular to the lower shaft lug of the upper shaft lug.

Preferably, the upper lug and the lower lug are arranged at an angle of 30-45 degrees with the flange.

Preferably, the rotating mechanism is a rotating shaft screw; the number of the plurality of pressing assemblies is 6-10.

Adopt the technical scheme of the utility model, following beneficial effect has: when the sealing groove adopts a right-angled trapezoid groove, the upper surface and the lower surface of the flange play a role in sealing, and the side surface of the groove hardly plays any role in sealing, so that only the upper surface and the lower surface of the flange need to be finely processed in the processing process, and no special requirement is made on the roughness of the side surface of the groove, so that the processing cost is reduced;

in a working state, the right-angled trapezoid groove is more beneficial to enabling the O-shaped sealing ring to generate enough contact stress, so that a sealing effect is achieved, especially for powder media, under the action of certain pressure, the side wall of the groove is sealed at the side with lower flange pressure, a certain backflow space is formed, so that the media are more difficult to leak, the safety coefficient is improved, and in an overhauling state, when a manhole is opened, the right-angled trapezoid groove enables the O-shaped sealing ring to be difficult to fall off; the swing bolt is rotated reversely and rotates around the guide shaft, and the manhole is separated from the U-shaped opening of the flange and the flange cover, so that the manhole is quickly opened;

along the radial manhole of installation of toper shell ring, the pivot bolt of the journal stirrup and the vertical direction that the cooperation level was arranged has changed the direction of rotation of manhole flange cover, realizes that the manhole flange cover is around the axial of vertical direction and rotates, has not only saved the manhole but also saved the required space greatly, makes the atress condition of pivot obtain certain improvement simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the compressing assembly of the present invention;

fig. 3 is the structural schematic diagram of the right trapezoid groove and the O-shaped sealing ring of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "is connected to" the second feature

"under" may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact, but being in contact with each other through additional features between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, the present invention provides a quick-opening manhole applied to a dust conveying system, including a flange 3, a flange cover 4, a hinge assembly 30 disposed on the flange 3, and a quick-opening mechanism connecting the flange 3 and the flange cover 4; the end part of the flange 3 is provided with a right-angled trapezoidal groove 301; an O-shaped sealing ring 50 is arranged in the right-angled trapezoid groove 301.

The quick-opening manhole applied to the ash conveying system further comprises a conical cylinder body 11 and a manhole cylinder section 1, wherein the manhole cylinder section 1 is connected with the conical cylinder body 11; the flange 3 is connected with the side wall of the conical cylinder body 11 through the manhole shell ring 1.

The quick-opening manhole applied to the ash conveying system further comprises a handle 6, and the handle 6 is arranged on the flange cover 4.

The quick opening mechanism comprises a plurality of pressing components, an upper lug 5, a lower lug 7 and a rotating mechanism 8; the flange 3 is connected with the flange cover 4 through a plurality of pressing components; the upper shaft lug 5 is connected with the flange 3 and is arranged at the upper end of the flange 3; the lower shaft lug 7 is connected with the flange 3 and is arranged at the lower end of the flange 3; the rotating mechanism 8 is sequentially arranged on the lower shaft lug 7, the hinge assembly 30 and the upper shaft lug 5 in a penetrating mode.

Each of the pressing assemblies includes a guide shaft 12, a positioning block 10 disposed at both ends of the guide shaft 12, and an eye bolt 2 inserted through the guide shaft 12.

The flange 3 and the flange cover 4 are provided with a plurality of U-shaped openings 20 at the edges, and one end of the swing bolt 2 is arranged in the U-shaped openings 20.

The contact position of the side wall of the O-shaped sealing ring and the inner side wall of the right-angle trapezoidal groove is an included angle of 20-25 degrees, the compression rate of the O-shaped sealing ring 50 which is arranged in the right-angle trapezoidal groove 301 is proper in size due to the design of the included angle, cracks of the O-shaped sealing ring cannot be caused due to overlarge size, and internal medium leakage cannot be caused due to the undersize.

The upper shaft lug 5 and the lower shaft lug 7 are horizontally arranged; the rotating mechanism 8 is respectively vertical to the upper shaft lug 7 and the lower shaft lug 5.

The upper lug 5 and the lower lug 7 are arranged at an angle of 30-45 degrees with the flange 3.

The rotating mechanism 8 is a rotating shaft spiral; the number of the plurality of pressing assemblies is 6-10.

The working principle of the utility model is as follows:

when the manhole cover needs to be opened, the swing bolt 2 rotates around the guide shaft 12 of the positioning block 10 to be separated from the U-shaped opening 20 of the flange 3 and the flange cover 4, then the rotating shaft spiral is rotated to change the rotation direction of the manhole flange cover 4, the manhole flange cover 4 rotates around the vertical axial direction, and the manhole cover is opened rapidly.

In a working state, the right-angled trapezoid groove 301 is more beneficial to enabling the O-shaped sealing ring 50 to generate enough contact stress, so that a sealing effect is achieved, especially for powder media, under the action of certain pressure, the side wall of the groove is sealed at the side with lower flange pressure, a certain backflow space is formed, so that the media are more difficult to leak, and therefore the safety coefficient is improved, and in an overhauling state, when a manhole is opened, the right-angled trapezoid groove enables the O-shaped sealing ring to be difficult to fall off; the swing bolt is rotated reversely and rotates around the guide shaft, and the manhole is separated from the U-shaped opening of the flange and the flange cover, so that the manhole is quickly opened;

along the radial manhole of installation of taper cylinder 11, the pivot bolt of upper journal stirrup 5, lower journal stirrup 5 and vertical direction that the cooperation level was arranged has changed manhole flange cover 4's direction of gyration, realizes manhole flange cover 4 around the axial of vertical direction and rotates, has not only saved the manhole but also has saved the manhole greatly and has opened required space, makes the atress condition of pivot obtain certain the improvement simultaneously.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. A quick-opening manhole applied to an ash conveying system is characterized by comprising a flange, a flange cover, a hinge assembly arranged on the flange, and a quick-opening mechanism for connecting the flange and the flange cover; the end part of the flange is provided with a right-angled trapezoid groove; and an O-shaped sealing ring is arranged in the right-angled trapezoid groove.

2. The quick-opening manhole applied to an ash conveying system according to claim 1, further comprising a cone body and a manhole shell section, wherein the manhole shell section is connected with the cone body; the flange is connected with the side wall of the conical cylinder body through a manhole cylinder section.

3. The quick-opening manhole applied to the ash conveying system of claim 2, further comprising a handle, wherein the handle is arranged on the flange cover.

4. The quick-opening manhole applied to an ash conveying system according to claim 1, wherein the quick-opening mechanism comprises a plurality of pressing components, an upper lug, a lower lug and a rotating mechanism; the flange is connected with the flange cover through a plurality of pressing components; the upper shaft lug is connected with the flange and is arranged at the upper end of the flange; the lower shaft lug is connected with the flange and is arranged at the lower end of the flange; the rotating mechanism sequentially penetrates through the lower shaft lug, the hinge assembly and the upper shaft lug.

5. The quick-opening manhole applied to an ash conveying system according to claim 4, wherein each of the compressing assemblies comprises a guide shaft, a positioning block disposed at both ends of the guide shaft, and a swing bolt passing through the guide shaft.

6. The quick-opening manhole applied to an ash conveying system according to claim 5, wherein the flange and the flange cover have a plurality of U-shaped openings at the edge, and one end of the swing bolt is disposed in the U-shaped opening.

7. The quick-opening manhole applied to an ash conveying system according to claim 1, wherein the contact position between the side wall of the O-shaped sealing ring and the inner side wall of the right trapezoid groove forms an included angle of 20-25 degrees.

8. The quick-opening manhole applied to an ash conveying system according to claim 4, wherein the upper and lower lugs are horizontally arranged; the rotating mechanism is perpendicular to the lower shaft lug of the upper shaft lug.

9. The quick-opening manhole applied to an ash conveying system according to claim 8, wherein the upper and lower lugs are arranged at an angle of 30-45 ° to the flange.

10. The quick-opening manhole applied to an ash conveying system according to claim 4, wherein the rotating mechanism is a rotating shaft screw.

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