CN211997130U

CN211997130U - Quick-opening sealing cover

Info

Publication number: CN211997130U
Application number: CN202020667582.XU
Authority: CN
Inventors: 吴林屿; 李廷勇
Original assignee: Daqing Petrochemical Engineering Co Ltd
Current assignee: Daqing Petrochemical Engineering Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-11-24
Anticipated expiration: 2030-04-27

Abstract

The utility model provides a quick-open type sealing cover, it includes: a blind plate; the pressing plate is positioned on the outer side of the blind plate and is spaced from the blind plate; the sealing ring is clamped between the blind plate and the pressing plate; and a fastening device for locking the blind plate and the press-in plate to deform the seal ring, wherein the outer diameter of the press-in plate is larger than that of the blind plate. The utility model provides a sealed lid of quick-open type structural style is simple, light in weight, material saving, reduce cost, easy dismouting, low moment of torsion can be screwed up effectively to obtain high gas tightness, the strong operability, dismouting rapidly as required has very big help to reducing the operation work load.

Description

Quick-opening sealing cover

Technical Field

The utility model relates to a sealed lid field, more specifically relates to a quick-open sealed lid.

Background

Manhole, hand hole and other positions that take over etc. and need frequent switch often are provided with the blind flange in petrochemical industry device ordinary pressure storage tank equipment, however, conventional blind flange structure is complicated, and the consumptive material is many, and the dismouting is loaded down with trivial details, consumes physical power, and the takedown time is long.

Based on this, the prior art still remains to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel sealed lid of quick-open type, it can overcome not enough among the above-mentioned prior art.

Based on the purpose, the following technical scheme is adopted:

according to the utility model discloses, a quick-open sealed lid is provided, it includes:

a blind plate;

the pressing plate is positioned on the outer side of the blind plate and is spaced from the blind plate;

the sealing ring is clamped between the blind plate and the pressing plate; and

fastening means for locking the blind plate and the press-in plate to deform the sealing ring,

wherein the outer diameter of the pressing plate is larger than that of the blind plate.

According to an embodiment of the present invention, the blind comprises an edge region, a central convex region protruding outwards relative to the edge region, and a transition region between the edge region and the central convex region.

According to an embodiment of the invention, the press-in plate comprises an edge region, a central recessed region recessed inwardly with respect to the edge region and a transition region between the edge region and the central recessed region.

According to the utility model discloses an embodiment, fastener sets up the blind plate the central convex region with press into the board in the central concave region, the sealing washer centre gripping is in the blind plate marginal area the blind plate transition region press into the board marginal area and press into the board between the transition region.

According to an embodiment of the present invention, the blind plate and the structural part of the press-in plate are axisymmetric, the blind plate the central convex area corresponds to the press-in plate the central concave area, the blind plate the transition area corresponds to the press-in plate the transition area. The edge region of the blind plate corresponds to a portion of the edge region of the press-in plate.

According to the utility model discloses an embodiment, fastener include the bolt and with bolt complex nut, wherein the bolt passes in proper order the blind plate the pressure is gone into the board, later with the nut is connected in order to lock the blind plate with the pressure is gone into the board, wherein the bolt with blind plate fixed connection.

According to an embodiment of the invention, the nut adopts the form of a wing nut, and the nut with be provided with the gasket between the pressinto board.

According to an embodiment of the invention, the sealing ring takes the form of a C-shaped sealing ring.

According to an embodiment of the present invention, the quick-open sealing cover further comprises a handle fixedly connected to the blind plate and protruding beyond the press-in plate.

According to the utility model discloses an embodiment, the sealed lid of quick-open is connected with the takeover and is used, wherein the blind plate the external diameter is less than the internal diameter of takeover, the biggest flexible external diameter of sealing washer is greater than the takeover the internal diameter, the pressboard the external diameter is greater than the external diameter of takeover.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect can be realized:

the utility model provides a sealed lid of quick-open type structural style is simple, light in weight, material saving, reduce cost, easy dismouting, low moment of torsion can be screwed up effectively to obtain high gas tightness, the strong operability, dismouting rapidly as required has very big help to reducing the operation work load.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some implementation cases of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic side sectional view of a quick-opening sealing cover according to an embodiment of the present invention when assembled with a connecting pipe;

FIG. 2 is a schematic front view of the quick-open seal cap of FIG. 1 assembled with a nipple;

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

fig. 4 is a schematic side sectional view of a quick-opening sealing cover according to another embodiment of the present invention when assembled with a connecting pipe;

figure 5 is a schematic front view of the quick-open sealing cap of figure 4 when assembled with a nipple.

List of reference numerals

1-a blind plate; 1-1-edge region; 1-2-central convex region; 1-3-transition region; 2-sealing ring; 2-1-a base; 2-2-a first tapered lip; 2-3-a second tapered lip; 3-pressing in the plate; 3-1-edge region; 3-2-central recessed area; 3-3-transition region; 4-a gasket; 5-a nut; 6-bolt; 7-connecting pipe; 8-handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

In the following description, it is to be understood that the terms "center", "inside", "outside", "inward", "outward", "left", "right", "vertical", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.

The utility model provides a quick-open type sealing cover, as shown in figures 1 and 4, this quick-open type sealing cover includes: a blind plate 1; a press-in plate 3 located outside (right side in the drawing) the blind plate 1 and spaced apart from the blind plate 1; a seal ring 2 clamped between the blind plate 1 and the press-in plate 3; and fastening means for locking the blind plate 1 and the press-in plate 3 to deform the sealing ring 2. The outer contours of the blind plate and the press-in plate are circular (the circular outer contour of the press-in plate 3 is clearly visible in fig. 2, the circular outer contour of the blind plate 1 is not visible in fig. 2 because it is obscured by the press-in plate 3), and the outer diameter of the circular press-in plate 3 is greater than the outer diameter of the circular blind plate 1 (this is clearly visible in fig. 1 and 4, in which the outer diameter is expressed as a dimension in the vertical direction).

As shown in fig. 1 and 4, the blind plate 1 includes an edge region 1-1, a central convex region 1-2 that is convex outward with respect to the edge region 1-1, and a transition region 1-3 between the edge region 1-1 and the central convex region 1-2. In the exemplary embodiment shown, edge region 1-1 and central convex region 1-2 are both vertically oriented and central convex region 1-2 is offset outwardly relative to edge region 1-1, while transition region 1-3 is inclined relative to edge region 1-1 and central convex region 1-2. Wherein the central raised area 1-2 can be used to provide a fastening means, which can be located at the center of the central raised area 1-2 (as shown in figure 2) or can be located off-center from the center of the central raised area 1-2 (as shown in figure 5). Wherein the transition area 1-3 and the edge area 1-1 can be used for the carrier sealing ring 2. In other words, the transition region 1-3 and the edge region 1-1 are flared inwardly compared to the central bulged region 1-2, forming part of a chamber for accommodating the sealing ring 2.

As shown in fig. 1 and 4, the pressfit plate 3 includes an edge region 3-1, a central recessed region 3-2 recessed inwardly with respect to the edge region 3-1, and a transition region 3-3 between the edge region 3-1 and the central recessed region 3-2. In the exemplary embodiment shown, both the edge region 3-1 and the central recessed region 3-2 are vertically oriented and the central recessed region 3-2 is offset inwardly with respect to the edge region 3-1, while the transition region 3-3 is inclined with respect to the edge region 3-1 and the central recessed region 3-2. Wherein the central recessed area 3-2 may be used for providing fastening means, the positioning of the fastening means in the central recessed area contributes to an increased safety against possible damage due to accidental contact with the fastening means. The fastening means may be arranged in the centre of the central recessed area 3-2 (as shown in fig. 2) or may be arranged offset from the centre of the central recessed area 3-2 (as shown in fig. 5). Wherein the transition area 3-3 and the edge area 3-1 can be used for the carrier sealing ring 2. In other words, the transition region 3-3 and the edge region 3-1 are flared outwardly compared to the central recessed region 3-2 to form another part of the chamber for accommodating the sealing ring 2. The sealing ring 2 is thereby clamped between the edge region 1-1 and the transition region 1-3 of the blind plate 1 and the edge region 3-1 and the transition region 3-3 of the press-in plate 3.

In the exemplary embodiment shown, the blind plate 1 is substantially (or partially) axisymmetrical to the structure of the press-in plate 3. Specifically, the central convex region 1-2 of the blind plate 1 corresponds approximately to the central concave region 3-2 of the pressfit plate 3, the transition region 1-3 of the blind plate 1 corresponds approximately to the transition region 3-3 of the pressfit plate 3, and the edge region 1-1 of the blind plate 1 corresponds to a portion of the edge region 3-1 of the pressfit plate 3. That is, the edge region 3-1 of the pressfit plate 3 is additionally more numerous than the edge region 1-1 of the blind plate 1, and the structure of the blind plate 1 and the rest of the pressfit plate 3 is axisymmetrical with respect to a central plane located therebetween, except for the additional numerous portions.

In the exemplary embodiment shown, the fastening means comprise a bolt 6 and a nut 5 which cooperates with the bolt 6, wherein the bolt 6 passes through the blind plate 1, the press-in plate 3 in succession and is then connected with the nut 5, whereby the purpose of locking the blind plate 1 and the press-in plate 3 can be achieved by screwing the nut 5 onto the bolt 6. Wherein the bolt 6 is fixedly connected with the blind plate 1, for example, the bolt 6 can be welded to the blind plate 1. In order to ensure the reliability of the connection, the bolts 6 may be welded on both sides to the blind plate 1. Specifically, welding is performed at the position where the bolt head abuts against the blind plate 1, on the one hand, and at the position where the screw passes through the blind plate 1, on the other hand. It should be noted here that although in the exemplary embodiment of the present invention, the blind plate 1 and the press-in plate 3 are locked by a set of fastening devices (i.e. a bolt and a nut engaged therewith), the present invention does not limit the number of fastening devices, and multiple sets of fastening devices may be provided to achieve the required locking effect according to the actual requirement, for example, two, three, four and above sets of fastening devices are provided.

In the exemplary embodiment shown, the nut 5 takes the form of a wing nut for ease of assembly and disassembly. In particular, the nut 5 comprises a nut body provided with an internal thread matching the external thread of the bolt, and flanks provided on both sides of the nut body, which can be conveniently locked manually or by means of a tool engaging the flanks.

In the exemplary embodiment shown, a spacer 4 is provided between the press-in plate 3 and the nut 5, in order to enhance the locking effect on the one hand by increasing the contact area and/or increasing the friction force and to enable a sealing action on the other hand. When the washer 4 is provided, the bolt 6 is passed through the blind plate 1, the press-fitting plate 3, and the washer 4 in this order, and then connected to the nut 5. Referring to fig. 2, it can be seen that in the exemplary embodiment shown, the washer is circular and has an outer diameter that is much larger than the outer diameter of the bolt shank portion.

In the exemplary embodiment shown, the sealing ring 2 takes the form of a C-ring for enhanced sealing, preferably a C-ring of high elasticity and moderate hardness is selected. Specifically, the seal ring 2 includes a base portion 2-1 and first and second tapered lip portions 2-2 and 2-3 extending from the base portion. A notch is formed between the first tapered lip 2-2 and the second tapered lip 2-3. The contact area between the sealing ring and the blind plate and the press-in plate is gradually increased from one end of the conical lip parts 2-2 and 2-3 to one end of the base part 2-1, which is beneficial to enhancing the sealing effect. In the embodiment shown, the first and second conical lip portions 2-2 and 2-3 of the sealing ring 2 abut the transition regions 1-3 of the blind plate 1 and the transition region 3-3 of the press-in plate 3, respectively. For the C-shaped seal ring, the half cone angle θ (as shown in fig. 3) needs to be set to an appropriate angle, and if the half cone angle θ is too small, the C-shaped seal ring should not be pulled out when the C-shaped seal ring is disassembled, and the diameter ratio of the C-shaped seal ring is also reduced by expanding the C-shaped seal ring. Here, the material of the C-shaped seal ring is not particularly limited, and an appropriate material, such as rubber, may be selected according to actual needs (e.g., a pipe medium to be used).

In the exemplary embodiment shown in fig. 4 and 5, for large-diameter spouts, the quick-opening sealing lid is also provided, for ease of removal, with a handle 8, which handle 8 is fixedly connected to the blind plate 1, for example welded to the blind plate 1, and projects beyond the press-in plate 8. In other words, the handle 8 is fixedly connected to the blind plate 1 through the press-in plate 3. In the shown embodiment, two handles are symmetrically arranged on the central convex area 1-2 of the blind plate 1 and the central concave area 3-2 of the press-in plate 3, however, the present invention does not limit the number of handles, and only one handle may be arranged.

The utility model provides a sealed lid of quick-open type is equipped with takeover 7 and seals it. The outer diameter of the blind plate 1 is smaller than the inner diameter of the adapter tube 7, so that the blind plate 1 can be placed in the adapter tube 7 during assembly. The outside diameter of the rim when the gasket is not compressed is smaller than the inside diameter of the nozzle 7 to facilitate assembly into the nozzle 7, and the outside diameter when compressed is deformable to a diameter greater than the inside diameter of the nozzle 7 to facilitate effective sealing of the nozzle 7 when deformed. The outer diameter of the press-in plate 3 is larger than the outer diameter of the adapter tube 7, so that the press-in plate 3 can be snapped onto the end face of the adapter tube 7 after assembly.

The utility model provides a quick-open type sealing cover and assembling process of connecting pipe 7 describe as follows: the quick-opening sealing cover is arranged at the pipe orifice of the connecting pipe 7, when the butterfly nut 5 is screwed down, the press-in plate 3 moves inwards to extrude the C-shaped sealing ring 2, so that the C-shaped sealing ring 2 is extruded and deformed outwards in the radial direction, the outer diameter of the C-shaped sealing ring 2 is enlarged to be completely attached to the inner wall of the connecting pipe 7, the quick-opening sealing cover cannot be pulled outwards at the moment, the edge of the press-in plate 3 is completely attached to the end face of the connecting pipe 7, and the C-shaped sealing ring 2 plays a role in.

It should be noted here that in an actual petrochemical plant, a designer may adjust one or more of the following parameters (the following parameters may be referred to as 3) according to the diameter of the pipe to be connected in the plant:

(1) adjusting parameters of the C-shaped sealing ring, such as the width h, the length A of the conical lip and the size B of the notch;

(2) adjusting the thickness 1 of the blind plate and the thickness 2 of the press-in plate;

(3) selecting different sizes of bolts and butterfly nuts;

(4) if the adapter is large in diameter or the wing nut is small, a handle may be added when the sealing cover is not easily pulled out (as shown in fig. 4 and 5).

To sum up, the utility model provides a sealed lid of quick-open has sealed effectual, and convenient for operation saves time, practices thrift the cost, practices thrift labour's effect, can the wide application in petrochemical device take over the condition that needs flanged cover such as the manhole of ordinary pressure storage tank (replace the flanged cover originally from this), and this sealed lid of quick-open also can be used on the running water simultaneously, ordinary pressure pipelines such as gas piping, prevent the invasion of impurity such as sand and soil, water, also can use the distribution pipeline such as ordinary pressure greasy dirt such as petrochemical device simultaneously, water on, prevent that greasy dirt, gas etc. from leaking and causing burning or explosion. In addition, the novel quick-open sealing cover is very high in operability and safety.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to suggest that the scope of the disclosure of embodiments of the present invention (including the claims) is limited to these examples; within the idea of embodiments of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A quick-open seal cap, comprising:

a blind plate;

the sealing ring is clamped between the blind plate and the pressing plate; and

2. The quick open seal cap of claim 1 wherein the blind panel includes a rim region, a central bulged region projecting outwardly relative to the rim region, and a transition region between the rim region and the central bulged region.

3. The quick open seal cap of claim 2 wherein the press-in plate includes a rim region, a central recessed region recessed inwardly relative to the rim region, and a transition region between the rim region and the central recessed region.

4. The quick open seal cap of claim 3 wherein said fastening means is disposed in said central convex region of said blind plate and said central concave region of said drive-in plate, said seal being sandwiched between said edge region of said blind plate, said transition region of said blind plate, said edge region of said drive-in plate, and said transition region of said drive-in plate.

5. The quick open seal cap of claim 3 wherein said blind plate is axisymmetrical with respect to a structural portion of said driven plate, said central convex region of said blind plate corresponding to said central concave region of said driven plate, said transition region of said blind plate corresponding to said transition region of said driven plate, said edge region of said blind plate corresponding to a portion of said edge region of said driven plate.

6. The quick-open sealing cover according to claim 1, wherein the fastening means comprises a bolt and a nut engaged with the bolt, wherein the bolt passes through the blind plate and the press-in plate in sequence and then is connected with the nut to lock the blind plate and the press-in plate, and wherein the bolt is fixedly connected with the blind plate.

7. The quick open seal cap of claim 6 wherein the nut is in the form of a wing nut and a gasket is disposed between the nut and the compression plate.

8. A quick-open sealing cap according to claim 1, wherein the sealing ring is in the form of a C-ring.

9. The quick open seal cap of claim 1 further comprising a handle fixedly attached to the blind plate and projecting beyond the push-in plate.

10. The quick-opening sealing cap according to claim 1, wherein the quick-opening sealing cap is used in connection with a nipple, wherein the outer diameter of the blind plate is smaller than the inner diameter of the nipple, the maximum deformable outer diameter of the sealing ring is larger than the inner diameter of the nipple, and the outer diameter of the press-in plate is larger than the outer diameter of the nipple.