CN212005178U

CN212005178U - Pressure relief type sealing cover device

Info

Publication number: CN212005178U
Application number: CN202020444599.9U
Authority: CN
Inventors: 张英杰; 张利明; 姜玉智
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-24
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a pressure relief type sealing cover device, which comprises a sealing cover, wherein a sealing steel ring is inserted in the lower side of the sealing cover, a thrust rod is movably inserted in the middle of the upper side of the sealing cover, the upper side of the sealing cover is connected with a rotating handle through a support thread, a first sealing ring is arranged at the bottom in the sealing cover, a pressure ring block is arranged on the upper side of the first sealing ring, a spring is arranged on the upper side of the pressure ring block through a lower spring support, a lever pressure plate is arranged on the upper side of the spring through an upper spring support, an inner supporting plate is welded between the lever pressure plates, a compression seat is welded in the middle of the inner supporting plate, the lower end of the thrust rod is arranged right above the middle of the compression seat, and a pressure relief valve is connected on one side of the upper end of the sealing cover, and the double-layer sealing gasket is used, so that the sealing is easier to realize.

Description

Pressure relief type sealing cover device

Technical Field

The utility model relates to a jar body seals technical field, specifically is a pressure release formula seal boot device.

Background

Along with the continuous development of economy, the variety of dangerous chemicals is continuously increased, and the range of application is extremely wide, no matter in storage or in the transportation, all there is very big danger. Meanwhile, in order to seek for benefits, the storage device is designed into a tank body with large volume and large capacity, and high pressure is mostly formed in the tank body. In both storage and transportation states, the tank body is difficult to block once leaking. According to statistics, the pressure is small and the plugging is easy in the process of treating the leakage of the hazardous chemical; the pressure is large and difficult to block, even if the pressure is blocked, the micro leakage exists, the problem cannot be solved at one time, or the pressure is reduced for stopping the leakage. In the face of the problems, I think that the thought should be changed, the high-pressure leakage should be converted into low-pressure leakage stoppage, and then the leakage stoppage is carried out in a sealing mode instead of blocking, so that the pressure relief type sealing cover is designed.

The traditional sealing device has the following defects:

(1) when the sealing surface is a curved surface, there will be a part of the edge that is not sealed, although the sealing ring can seal a large gap, due to the characteristics of the rigid structure of the sealing sleeve, the pressure of the whole sealing ring at each part is unequal, when the internal pressure is large, the weakest area will become a leakage point, as shown in fig. 1.

(2) The compression of the sealing cover is completely determined by the tension of the rope, and the tension of the rope is determined by the strength of people, so that the compression force of the sealing cover is limited, and the sealing of higher pressure cannot be realized.

(3) When the high-pressure device leaks, the sealing cover is difficult to cover, and in addition, the fighter wears heavy equipment, the operation is inconvenient, and the sealing task is difficult to complete.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure release formula sealed cowling device to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pressure release formula sealed cowling device, includes the sealed cowling, inside the inserting of sealed cowling downside is equipped with sealed steel ring, the activity of sealed cowling upside middle part is inserted and is equipped with the distance rod, the sealed cowling upside has the twist grip through supporting seat threaded connection, first sealing washer is installed to the bottom in the sealed cowling, the pressure ring piece is installed to first sealing washer upside, pressure ring piece upside has the spring through lower spring support mounting, the spring upside has the lever pressure plate through last spring support mounting, the welding has interior fagging between the lever pressure plate, the welding of interior fagging middle part has the compression seat, and the distance rod lower extreme sets up directly over compression seat middle part, sealed cowling upper end one side is connected with the relief.

Furthermore, the supporting seat lower side is fixedly welded with the upper side of the sealing cover through supporting rods, and the number of the supporting rods is four.

Furthermore, fixed ears are installed on the upper sides of the two ends of the sealing cover, and rope threading holes are formed in the fixed ears.

Further, a second sealing ring is installed on the lower side of the sealing steel ring, and a third sealing ring is installed between the sealing steel ring and the sealing cover.

Furthermore, springs are mounted on the lower sides of two ends of the lever pressure plate, and four groups of springs are symmetrically mounted on the lever pressure plate.

Further, the inner supporting plate is symmetrically installed about the middle of the compression seat, two groups of inner supporting plates are symmetrically installed about the middle of the compression seat, a groove is formed in the middle of the compression seat, balls are installed inside the groove, a protective cover is arranged on the upper side of each ball, and one end of each thrust rod penetrates through the protective cover.

Furthermore, the outside cover in spring middle part is equipped with the uide bushing, and spring and uide bushing cooperation are provided with eight groups.

Furthermore, the clamping ring block is formed into a ring shape by sequentially clamping and combining eight arc-shaped blocks.

Furthermore, clamping grooves are formed in one end of the pressing ring block, clamping blocks are arranged at two ends of the pressing ring block, and the clamping grooves and the clamping blocks are matched and clamped.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses because the existence of relief valve opens the relief valve at sealed in-process, realizes that high-pressure seal closes the relief valve again to the sealed conversion of low pressure after sealed the realization, perhaps leads to other devices, meets combustible gas and also can ignite the release.

2. The utility model discloses a distance rod that is equipped with, lever pressure plate and clamp ring piece, compression spring's support has adopted the principle of lever, when each spring pressure is different, can realize that automatically regulated makes each spring pressure equal (balance principle), and then make whole sealing washer equal at the pressure of each position, there is not the weak point, can realize sealing better, it is sealed to have solved the curved surface, turn into controllable dew point with anomalous revealing simultaneously, because inside takes spring assembly to realize sealing under the high-pressure condition, including the sealed effect of double-deck pad, make sealed more easy realization.

3. The utility model discloses wholly paint, prevent static, when meetting the leakage point pressure when big very much moreover, can design several relief valves more or design a plurality of multistage relief valves, improve the security of using.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a sealing structure of a sealing cap in the prior art;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a longitudinal sectional view of the overall structure of the present invention;

fig. 4 is a schematic cross-sectional view of the overall structure of the present invention;

fig. 5 is a schematic view of the structure of the pressure ring block of the present invention;

fig. 6 is an enlarged schematic view of the structure at a of the present invention.

In the figure: 1. a sealing cover; 2. a thrust rod; 3. rotating the handle; 4. a lever pressure plate; 5. a spring; 6. a guide sleeve; 7. pressing a ring block; 71. a card slot; 72. a clamping block; 8. a first seal ring; 9. an upper spring support; 10. a pressure relief valve; 11. a ball bearing; 12. a compression seat; 13. sealing the steel ring; 14. a third seal ring; 15. a second seal ring; 16. a support bar; 17. a supporting seat; 18. fixing the ear; 19. an inner supporting plate; 20. a lower spring support.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, in the embodiment of the present invention, a pressure relief type sealing cover device comprises a sealing cover 1, a sealing steel ring 13 is inserted into the lower side of the sealing cover 1, a thrust rod 2 is movably inserted into the middle of the upper side of the sealing cover 1, a rotary handle 3 is connected to the upper side of the sealing cover 1 through a support seat 17 and is in threaded connection to facilitate spiral pressure application processing on a pressure ring 7, a first sealing ring 8 is installed at the bottom of the sealing cover 1 to seal the surface of an oil tank and the sealing cover 1, the pressure ring 7 is installed on the upper side of the first sealing ring 8, a spring 5 is installed on the upper side of the pressure ring 7 through a lower spring support 20, a lever pressure plate 4 is installed on the upper side of the spring 5 through an upper spring support 9, an inner support plate 19 is welded between the lever pressure plates 4, a compression seat 12 is welded to the middle of the inner support plate 19, and the lower end of, the twist grip 3 promotes the thrust rod 2 and moves down, thrust rod 2 pushes down compression seat 12 and interior backup pad 19, thereby drive lever pressure plate 4 pressure spring 5, spring 5 drive pressure ring piece 7 compresses tightly first sealing washer 8 and seals, 1 upper end one side of sealed cowling is connected with relief valve 10, because the existence of relief valve 10, open relief valve 10 at sealed in-process, realize that high-pressure seal seals the conversion to low pressure, close relief valve 10 again after sealed realization, perhaps lead to other devices, it also can ignite the release to meet combustible gas, when meetting dew point pressure release when big very much, can design several relief valves more or design a plurality of multistage relief valves, the security of use improves.

Preferably, the lower side of the supporting seat 17 is fixedly welded with the upper side of the sealing cover 1 through supporting rods 16, and four supporting rods 16 are arranged for supporting and fixing the lower side of the supporting seat 17.

Preferably, the fixing lugs 18 are installed on the upper sides of the two ends of the sealing cover 1, and the rope through holes are formed in the fixing lugs 18, so that the sealing cover 1 can be conveniently fixed on the surface of the sealed curved surface through ropes.

Preferably, the second sealing ring 15 is installed on the lower side of the sealing steel ring 13, which has a certain double sealing function, but the main purpose of the sealing steel ring is to prevent the first sealing ring 8 from being extruded out under high pressure to cause rupture, and the third sealing ring 14 is installed between the sealing steel ring 13 and the sealing cover 1, so as to realize the sealing between the sealing steel ring 13 and the sealing cover 1.

Preferably, springs 5 are installed on the lower sides of two ends of the lever pressure plate 4, four groups of the lever pressure plate 4 are symmetrically installed, the lever pressure plate 4 support of the pressing springs 5 adopts the lever principle, and when the pressures of the springs 5 are different, automatic adjustment can be achieved to enable the pressures of the springs 5 to be equal.

Preferably, interior fagging 19 is installed about compression seat 12 middle part symmetry two sets ofly, and has seted up the recess in the middle part of compression seat 12, and recess internally mounted has

ball

11, and 11 upsides of ball are provided with the protection casing, and 2 one end of thrust rod run through the protection casing setting, are convenient for move down through thrust rod 2 and carry out pushing and pressing compression seat 12 downwards.

Preferably, the outside cover in the middle part of spring 5 is equipped with uide bushing 6, and spring 5 and uide bushing 6 cooperation are provided with eight groups, and the clamping ring piece 7 is enclosed by eight arc pieces in proper order the joint and is closed the ring form for every spring 5 all possesses an independent clamping ring piece 7 and exerts pressure.

Preferably, one end of the pressing ring block 7 is provided with a clamping groove 71, two ends of the pressing ring block 7 are provided with clamping blocks 72, and the clamping groove 71 and the clamping blocks 72 are clamped in a matching manner, so that the pressing ring block 7 can be conveniently installed and fixed into an annular shape.

The utility model discloses a theory of operation and use flow:

1. the closure cap 1 is clamped at the leakage point, the pressure relief valve 10 is opened and the closure cap 1 is then secured by a cable through the securing lug 18, without sealing being achieved. (conversion of high pressure seal into Low pressure seal Process)

2. The twist grip 3 on the rotary seal cover 1, twist grip 3 promote thrust rod 2 and move down, and thrust rod 2 pushes down compression seat 12 and interior bracing plate 19 to drive lever pressure plate 4 pressure spring 5, spring 5 drive pressure ring piece 7 compresses tightly first sealing washer 8 and seals, and along with the continuous increase of spring 5 pressure, the leakproofness of first sealing washer 8 is better simultaneously, then closes relief valve 10, finally can realize sealing.

The lever pressure plate 4 support of the pressure spring 5 adopts the lever principle, when the pressure of each spring 5 is different, the automatic adjustment can be realized to ensure that the pressure of each spring 5 is equal (balance principle), further the pressure of the whole sealing ring at each part is equal, no weak point exists, and the sealing can be better realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pressure release formula seal cover device, includes seal cover (1), its characterized in that: a sealing steel ring (13) is inserted into the lower side of the sealing cover (1), a thrust rod (2) is movably inserted into the middle part of the upper side of the sealing cover (1), the upper side of the sealing cover (1) is connected with a rotating handle (3) through a supporting seat (17) by screw thread, a first sealing ring (8) is arranged at the bottom in the sealing cover (1), a pressing ring block (7) is arranged on the upper side of the first sealing ring (8), the upper side of the pressure ring block (7) is provided with a spring (5) through a lower spring support (20), a lever pressure plate (4) is arranged on the upper side of the spring (5) through an upper spring support (9), an inner supporting plate (19) is welded between the lever pressure plates (4), a compression seat (12) is welded in the middle of the inner supporting plate (19), and the lower end of the thrust rod (2) is arranged right above the middle part of the compression seat (12), and one side of the upper end of the sealing cover (1) is connected with a pressure release valve (10).

2. The pressure relief seal housing apparatus of claim 1, wherein: the lower side of the supporting seat (17) is fixedly welded with the upper side of the sealing cover (1) through supporting rods (16), and four supporting rods (16) are arranged.

3. The pressure relief seal housing apparatus of claim 1, wherein: fixing lugs (18) are installed on the upper sides of the two ends of the sealing cover (1), and rope threading holes are formed in the fixing lugs (18).

4. The pressure relief seal housing apparatus of claim 1, wherein: a second sealing ring (15) is installed on the lower side of the sealing steel ring (13), and a third sealing ring (14) is installed between the sealing steel ring (13) and the sealing cover (1).

5. The pressure relief seal housing apparatus of claim 1, wherein: and springs (5) are respectively installed on the lower sides of the two ends of the lever pressure plate (4), and four groups of the lever pressure plate (4) are symmetrically installed.

6. The pressure relief seal housing apparatus of claim 1, wherein: interior fagging (19) are installed two sets ofly about compression seat (12) middle part symmetry, and compress seat (12) middle part and seted up the recess, and recess internally mounted has ball (11), ball (11) upside is provided with the protection casing, and thrust rod (2) one end runs through the protection casing setting.

7. The pressure relief seal housing apparatus of claim 1, wherein: the outer side of the middle of the spring (5) is sleeved with a guide sleeve (6), and eight groups of the spring (5) and the guide sleeve (6) are arranged in a matched mode.

8. The pressure relief seal housing apparatus of claim 1, wherein: the pressing ring block (7) is formed into a ring by sequentially clamping and enclosing eight arc-shaped blocks.

9. The pressure relief seal housing apparatus of claim 1, wherein: one end of the pressing ring block (7) is provided with a clamping groove (71), clamping blocks (72) are arranged at two ends of the pressing ring block (7), and the clamping groove (71) and the clamping blocks (72) are clamped in a matched mode.