CN217301573U

CN217301573U - Device for sealing manhole of pressure container

Info

Publication number: CN217301573U
Application number: CN202122882408.4U
Authority: CN
Inventors: 彭期伟; 雷李辉; 张辉
Original assignee: Chongqing Changzheng Heavy Industry Co Ltd
Current assignee: Chongqing Changzheng Heavy Industry Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-08-26
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a device of sealed pressure vessel manhole, including revolving wrong component and swivel becket, the swivel becket rotationally connects on the rail of manhole, the periphery one side of swivel becket with revolve the axle sleeve fixed connection who revolves wrong component, the axle sleeve endotheca is equipped with the mandrel, the distal end fixedly connected with sector gear of mandrel, sector gear with fix the arc rack meshing in the rail periphery, through rotating the mandrel drives gear revolve and makes the swivel becket rotate and compress tightly or loosen the manhole cover. The beneficial effects of the utility model are that, revolve wrong component and swivel becket through the setting, make swivel becket and pressure vessel's rail rotatable coupling to the component is revolved to fixed connection on the swivel becket to the rotation revolves the mandrel on revolving the component and drives fixed connection epaxial gear along the rack rotation, makes the mandrel rotate around the rail center, drives when the mandrel rotates and rotates with axle sleeve fixed connection's swivel becket, and pivoted swivel becket compresses tightly the manhole cover or loosens, realizes closing and opening the manhole.

Description

Device for sealing manhole of pressure container

Technical Field

The utility model belongs to the pressure vessel technique, especially a device of sealed pressure vessel manhole.

Background

A flange is installed on an existing pressure container fence, a flange cover covers the flange, a gasket or a washer is installed between the flange and the flange cover, and the flange cover are screwed down through bolts to close a manhole of a pressure container.

Traditional manhole is closed, adopt flange and blind flange cooperation to close, because the diameter of the equal great therefore ring flange of pressure vessel's manhole is great, the mounting hole that flange and blind flange are connected has 20 at least, every mounting hole all need wear to establish bolt tightening flange and blind flange, can not once only screw up all bolts when screwing up the bolt, need symmetry screw up gradually, it all wastes time and energy to open the obturator, inefficiency, bolted connection probably can make the seal gasket atress inhomogeneous of flange simultaneously, lead to pressure vessel to take place to leak.

Disclosure of Invention

The utility model aims at providing a device of sealed pressure vessel manhole to it is sealed to solve traditional manhole and adopt flange and flange lid cooperation, and the bolt that needs to screw up is in large quantity, and the switching hole all wastes time and energy, and is inefficient, and bolted connection probably can make the seal gasket atress of flange inhomogeneous simultaneously, leads to pressure vessel to take place the problem of leaking.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The utility model provides a device of sealed pressure vessel manhole, is including revolving soon component and rotating ring, the rotating ring rotationally connects on the rail of manhole, the periphery one side of rotating ring with revolve the axle sleeve fixed connection who revolves the component, the axle sleeve endotheca is equipped with the dabber, the distal end fixedly connected with sector gear of mandrel, sector gear and the arc rack meshing of fixing at the rail periphery drive gear rotation through rotating the mandrel makes the rotating ring rotate and compresses tightly or loosen the manhole cover.

By adopting the technical proposal, the utility model is provided with the screwing component and the rotating ring, so that the rotating ring can be rotationally connected with the fence of the pressure vessel, a rotating ring is fixedly connected with a screwing component, a mandrel on the screwing component is rotated to drive a gear fixedly connected with the mandrel to rotate along a rack, so that the mandrel rotates around the center of the fence, the rotating ring fixedly connected with a shaft sleeve is driven to rotate when the mandrel rotates, the rotating ring compresses or releases the manhole cover, the stress on the manhole cover is uniform, the manhole is closed and opened, the manhole is opened and closed instead of being opened and closed by matching a flange and a flange cover, and the problem that the leakage of a pressure container possibly occurs because the flange and the flange cover are connected by using bolts to seal the manhole is avoided, and the rotating mandrel drives the gear rack to rotate in a matched manner to open and close the manhole, so that time and labor are saved, the labor hour is saved, and the working efficiency is improved.

Preferably, the rotating ring is integrally circular, a plurality of rotating ring wedge-shaped parts are uniformly distributed on the inner side of the top of the rotating ring, gaps are formed between every two adjacent rotating ring wedge-shaped parts, the length of each gap is greater than that of each rotating ring wedge-shaped part, and the rotating ring wedge-shaped parts are matched with the wedge-shaped parts on the manhole cover; the inboard equipartition of lower extreme of swivel becket has several connecting portion, every connecting portion all align with the swivel becket wedge portion of top, and are adjacent all form the breach between the connecting portion, the length of breach is greater than the length of connecting portion, every all be formed with the wedge face on the connecting portion, the wedge face cooperatees with the wedge face on the cell wall of the annular groove of rail periphery. Through set up swivel becket wedge portion and connecting portion on the swivel becket, connecting portion and rail are connected the position of restriction swivel becket in the rail direction of height, and the breach of swivel becket wedge portion and the breach of wedge face are just in time with the wedge face of wedge portion on the manhole cover and rail groove side wall respectively, and rotatory driving ring makes the cooperation of the wedge portion on swivel becket wedge portion and the manhole cover, and the wedge face on the connecting portion and the cooperation of the wedge face of rail groove side wall make the manhole cover compressed tightly on the rail gradually.

Preferably, the manhole cover is integrally in a pot cover shape, the wedge-shaped parts are uniformly distributed on the edge of the top of the manhole cover, and the inclination directions of the wedge-shaped parts and the rotation ring wedge-shaped parts are in the same direction. The manhole cover is arranged to be in a pot cover shape to cover the manhole, and the wedge-shaped part is matched and screwed with the wedge-shaped part of the rotating ring, so that the manhole cover is kept in a state of being pressed down or loosened by the rotating ring.

Preferably, the screwing member further comprises a handle, a bushing and a nut, and the top end of the mandrel is provided with a hexagon which is matched with an inner hexagon of the handle. The hexagonal shape is arranged at the top end of the mandrel, so that the mandrel can be conveniently matched with the internal hexagonal shape on the handle to rotate.

Preferably, the number of the bushings is two, the bushings are sleeved on the mandrel and are respectively located at two ends of the inner side of the shaft sleeve, and the nut is matched with the far end of the mandrel and is located at one end, far away from the shaft sleeve, of the sector gear. The abrasion between the shaft sleeve and the mandrel is reduced by arranging the bushing, and the sector gear is prevented from sliding off the mandrel when rotating by arranging the nut.

Preferably, the top of the manhole cover is connected with a connecting arm, and the connecting arm is hinged to a seat body fixed on the fence through a connecting shaft. The manhole cover is hinged with the base body through the connecting arm arranged on the manhole cover, so that the manhole cover rotates along with the connecting shaft when the manhole is opened or closed, and the manhole cover can be prevented from being lost.

Preferably, the outer circumferential edge of the fence is provided with an external thread, and the inner circumference of the rotating ring is provided with an internal thread matched with the external thread. The rotating ring is pressed on the manhole cover through the threads matched with each other, and the manhole is opened and closed.

Preferably, the top of the manhole cover is provided with a handle, and the handle is positioned on one side far away from the connecting arm. Through setting up the handle, be convenient for mention the manhole cover through the handle.

Preferably, a sealing groove is formed in the joint of the manhole cover and the fence cover, a sealing ring is installed in the sealing groove, and a concave-convex part is arranged on the sealing ring and matched with the concave-convex part on the convex ring installed on the fence. By arranging the sealing groove and arranging the sealing surface of the sealing ring arranged in the sealing groove into a concave-convex shape to be matched with the concave-convex part of the bulge ring, the pressure born by the sealing ring is improved, and the sealing effect is improved; through installing protruding ring on the rail, avoid processing protruding ring on the rail, reduce the degree of difficulty of processing, also practice thrift processing material simultaneously.

Preferably, the cross section of the sealing ring is of a trapezoidal structure with a wide top and a narrow bottom, an extrusion ring is arranged on the inner side of the sealing ring, the inner annular surface of the extrusion ring is matched with the side wall of the sealing groove of the manhole cover, and the outer annular surface of the extrusion ring is matched with the inner annular surface of the sealing ring. The extrusion ring and the sealing ring are arranged in the sealing groove in a matched mode, the mounting difficulty of the sealing ring can be reduced, and the sealing ring is arranged to be of a trapezoidal structure with the upper portion being large and the lower portion being small, so that the sealing ring can be effectively prevented from falling off.

The utility model has the advantages that the rotating ring is rotatably connected with the pressure vessel fence by the arrangement of the screwing component and the rotating ring, a rotating ring is fixedly connected with a screwing component, a mandrel on the screwing component is rotated to drive a gear fixedly connected with the mandrel to rotate along a rack, so that the mandrel rotates around the center of the fence, the rotating ring fixedly connected with a shaft sleeve is driven to rotate when the mandrel rotates, the rotating ring compresses or releases the manhole cover, the stress on the manhole cover is uniform, the manhole is closed and opened, the manhole is opened and closed instead of being opened and closed by matching a flange and a flange cover, and the problem that the leakage of a pressure container possibly occurs because the flange and the flange cover are connected by using bolts to seal the manhole is avoided, and the gear and the rack are driven by the rotating mandrel to rotate in a matched manner so as to open and close the manhole, so that time and labor are saved, the labor hour is saved, and the working efficiency is improved.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 according to the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a top view of the rotating ring of the present invention;

figure 5 is a front view of the present invention from figure 4;

fig. 6 is an enlarged view of the K portion of fig. 2 according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, which are not intended to limit the scope of the embodiments described herein.

The utility model discloses a specification reference numeral includes: rail 1, manhole cover 2, connecting arm 22, handle 23, rotating ring 3, connecting part 32, rotating ring wedge part 31, handle 4, compression ring 5, sealing ring 7, bulge ring 71, extrusion ring 72, wedge part 21, connecting shaft 6, spindle 8, bush 81, shaft sleeve 82, sector gear 9, rack 91 and nut 10.

Referring to fig. 1 to 5, the device for sealing a manhole of a pressure vessel comprises a screwing member and a rotating ring 3, wherein the rotating ring 3 is rotatably connected to a fence 1 of the manhole, one side of the outer periphery of the rotating ring 3 is fixedly connected with a shaft sleeve 82 of the screwing member, a spindle 8 is sleeved in the shaft sleeve 82, a sector gear 9 is fixedly connected to the distal end of the spindle 8, the sector gear 9 is meshed with an arc-shaped rack 91 fixed to the outer periphery of the fence 1, and the rotating ring 3 is rotated to press or loosen the manhole cover 2 by rotating the spindle 8 to drive the gear to rotate.

Referring to fig. 2, the rotating ring 3 is circular, a plurality of rotating ring wedge-shaped portions 31 are uniformly distributed on the inner side of the top of the rotating ring 3, and the rotating ring wedge-shaped portions 31 are matched with the wedge-shaped portions 21 on the manhole cover 2; the inner side of the lower end of the rotating ring 3 is provided with a connecting part 32, and the connecting part 32 is matched with an annular groove on the periphery of the fence 1.

Referring to fig. 4 and 5, the manhole cover 2 is in a pan-lid shape as a whole, the wedge parts 21 are uniformly distributed on the top edge of the manhole cover 2, and the inclination direction of the wedge parts 21 is the same as that of the rotating ring wedge part 31.

Referring to fig. 1 and 2, the screw member further comprises a handle 4, a bushing 81 and a nut 10, and the top end of the spindle 8 is provided with a hexagonal shape by which it is engaged with an internal hexagonal shape of the handle 4. The two bushings 81 are sleeved on the spindle 8 and respectively located at two ends of the inner side of the spindle sleeve 82, and the nut 10 is matched with the far end of the spindle 8 and located at one end, far away from the spindle sleeve 82, of the sector gear 9.

Referring to fig. 1 and 2, a connecting arm 22 is connected to the top of the manhole cover 2, and the connecting arm 22 is hinged to a seat fixed on the fence 1 through a connecting shaft 6. The top of the manhole cover 2 is provided with a handle 23, and the handle 23 is positioned on one side far away from the connecting arm 22.

Referring to fig. 6, a sealing groove is formed at the joint of the manhole cover 2 and the rail 1, a sealing ring 7 is installed in the sealing groove, and a concave-convex part is formed on the sealing ring 7 and is matched with a concave-convex part on a convex ring 71 installed on the rail 1 through the concave-convex part. The cross section of the sealing ring 71 is a trapezoid structure with a wide upper part and a narrow lower part, the inner side of the sealing ring 71 is provided with an extrusion ring 72, the inner annular surface of the extrusion ring 72 is matched with the side wall of the sealing groove of the manhole cover 2, and the outer annular surface of the extrusion ring 72 is matched with the inner annular surface of the sealing ring 71.

In this embodiment, the structure that the two wedge portions 21 are matched to screw the manhole cover 2 may be replaced by a structure that an external thread is provided on the outer peripheral edge of the fence 1 and an internal thread matched with the external thread is provided on the inner circumference of the rotating ring 3.

When the manhole needs to be opened and closed, the rotating sleeve drives the mandrel 8 to rotate, the mandrel 8 drives the sector gear 9 to rotate, the mandrel 8 rotates around the center of the fence 1, the mandrel 8 drives the rotating ring 3 fixedly connected with the shaft sleeve 82 to rotate when rotating, and then the manhole cover 2 is pressed or loosened.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a device of sealed pressure vessel manhole, characterized in that, revolves revolving member and rotating ring (3) including revolving, rotating ring (3) rotationally connects on rail (1) of manhole, the periphery one side of rotating ring (3) with revolve axle sleeve (82) fixed connection who revolves the revolving member, axle sleeve (82) endotheca is equipped with mandrel (8), the distal end fixedly connected with sector gear (9) of mandrel (8), sector gear (9) with fix arc rack (91) the meshing in rail (1) periphery, through rotating mandrel (8) drive gear revolve and make rotating ring (3) rotate and compress tightly or loosen manhole cover (2).

2. The device for sealing the manhole of the pressure vessel according to claim 1, wherein the rotating ring (3) is circular in shape as a whole, a plurality of rotating ring wedges (31) are uniformly distributed on the inner side of the top of the rotating ring (3), gaps are formed between the adjacent rotating ring wedges (31), the length of each gap is greater than that of each rotating ring wedge (31), and the rotating ring wedges (31) are matched with the wedges (21) on the manhole cover (2); the inboard equipartition of lower extreme of swivel becket (3) has several connecting portion (32), every connecting portion (32) all align with swivel becket wedge portion (31) of top, and are adjacent all form the breach between connecting portion (32), the length of breach is greater than the length of connecting portion (32), every all be formed with the wedge face on connecting portion (32), the wedge face cooperatees with the wedge face on the cell wall of the annular groove of rail (1) periphery.

3. Device for sealing a manhole of a pressure vessel according to claim 2, wherein the manhole cover (2) is generally pot-lid shaped, the wedges (21) are evenly distributed on the top edge of the manhole cover (2), and the direction of inclination of the wedges (21) is in the same direction as the direction of inclination of the wedges (31) of the rotating ring.

4. Device for sealing a pressure vessel manhole according to claim 1, characterized in that said screwing means further comprise a handle (4), a bushing (81) and a nut (10), the top end of said spindle (8) being provided with a hexagonal shape by which it cooperates with an internal hexagonal shape of the handle (4).

5. Device for sealing the manhole of pressure vessels according to claim 4, characterized in that said bush (81) is provided in two, both fitted over said mandrel (8) and located at the two ends of the inside of the shaft sleeve (82); the nut (10) is matched with the far end of the mandrel (8) and is positioned at one end of the sector gear (9) far away from the shaft sleeve (82).

6. Device for sealing the manhole of a pressure vessel according to claim 1, characterized in that the top of the manhole cover (2) is connected with a connecting arm (22), said connecting arm (22) being hinged to the seat fixed to the fence (1) by means of a connecting shaft (6).

7. Device for sealing a manhole of a pressure vessel according to claim 1, wherein the fence (1) is provided on its peripheral edge with an external thread and the rotating ring (3) is provided on its inner circumference with an internal thread cooperating with the external thread.

8. Device for sealing a manhole of a pressure vessel according to any one of claims 1 to 7, wherein the top of the manhole cover (2) is provided with a pull handle (23), the pull handle (23) being located on the side remote from the connecting arm (22).

9. Device for sealing a manhole of a pressure vessel according to any one of claims 1 to 7, wherein a sealing groove is provided at the joint of the manhole cover (2) and the enclosure (1), a sealing ring (7) is installed in the sealing groove, and the sealing ring (7) is provided with a concave-convex part which is matched with a concave-convex part on a convex ring (71) installed on the enclosure (1).

10. Device for sealing a manhole of a pressure vessel according to claim 9, wherein the cross-section of the sealing ring (7) is a trapezoid structure with a wide top and a narrow bottom, the inner side of the sealing ring (7) is provided with a squeeze ring (72), the inner annular surface of the squeeze ring (72) is fitted with the side wall of the sealing groove of the manhole cover (2), and the outer annular surface of the squeeze ring (72) is fitted with the inner annular surface of the sealing ring (7).