CN216430493U

CN216430493U - Inflatable bolt sealing mechanism

Info

Publication number: CN216430493U
Application number: CN202122679240.7U
Authority: CN
Inventors: 于忠海; 李博; 施晓鹏; 隋国鑫; 孔云飞
Original assignee: Dalian Techtension Industrial Co ltd
Current assignee: Dalian Techtension Industrial Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-05-03
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses an inflatable bolt sealing mechanism, which belongs to the technical field of bolt sealing of a nuclear power reactor pressure vessel, and comprises a sealing device I, the inner upper end of the sealing device I is provided with an inflatable seal, knurled screw rods are arranged around the sealing device I, the lower ends of the knurled screw rods and the sealing device I are screwed and fixed through an M4 check nut, the upper ends of the knurled screw rods are respectively provided with a fixing device I and a fixing device II, the utility model discloses an inflatable sealing mode, when in use, the inflatable seal is inflated to a specified pressure, and the pressure of ten meters under water can be effectively sealed; the tool is designed as an integrated tool, is convenient to install and disassemble, saves time and labor, can be repeatedly used and is suitable for occasions with limited space; the contact part between the rubber sealing piece and the surface of the bolt and the bolt hole is provided with the rubber sealing piece, so that the rubber sealing piece can effectively seal without damaging the surface of the bolt and the bolt hole.

Description

Inflatable bolt sealing mechanism

Technical Field

The utility model belongs to the technical field of the bolt seal of nuclear power reactor pressure vessel, concretely relates to inflatable bolt sealing mechanism.

Background

Currently, a packing seal mechanism is used on bolt sealing tools for nuclear power reactor pressure vessels. However, such a sealing mechanism has the following problems:

bolt sealing mechanism need seal bolt and bolt hole at ten meters underwater when using, guarantee that outside liquid does not get into bolt hole at bolt place, when using traditional filled sealing mechanism, sealed effect is unsatisfactory and can consume very long time when using, and extravagant manpower and materials have increaseed personnel radiation dose simultaneously, can not used repeatedly and use the back very difficult clearance.

SUMMERY OF THE UTILITY MODEL

To solve the problems raised in the background art described above. The utility model provides an inflatable bolt sealing mechanism has that the leakproofness is good, easy dismounting assembles portable characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an inflatable bolt sealing mechanism, includes sealing device I, the inside upper end of sealing device I is provided with inflatable seal, sealing device I be provided with the annular knurl screw rod all around, it is fixed to revolve wrong the screwing through M4 lock nut between the lower extreme of annular knurl screw rod and the sealing device I, the upper end of annular knurl screw rod is provided with fixing device I and fixing device II respectively, it is fixed through lock screw between fixing device I and the fixing device II, the lower extreme of sealing device I is provided with the bottom seal, the inboard of bottom seal is provided with sealing device II, it is fixed through M3 x 15 hexagon socket head cap screw between sealing device II and the sealing device I.

Preferably, handles are arranged at the upper ends of the fixing device I and the fixing device II, and the lower ends of the handles are screwed and fixed with the fixing device I and the fixing device II through M5 multiplied by 20 hexagon socket head cap screws.

Preferably, the inner sides of the fixing device I and the fixing device II form a circular groove, and protective rubber is arranged in the circular groove formed by the fixing device I and the fixing device II.

Preferably, the side edge of the inflatable seal is provided with a one-way valve type interface integrating inflation and deflation.

Preferably, the annular knurl screw rod includes interior screw hexagonal groove, decides pole, detachable rod, screw thread stiff end and mounting groove, wherein, the one end of deciding the pole is provided with interior screw hexagonal groove, the other end of deciding the pole is provided with the mounting groove, the mounting groove is connected with detachable rod, detachable rod's side is provided with the screw thread stiff end.

Preferably, the knurled screw further comprises a clamping groove and a clamping block, wherein the clamping groove is formed in the side edge of the fixed rod and the two sides of the detachable rod, and the clamping block is clamped in the middle of the clamping groove.

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

1. the utility model adopts the inflatable sealing mode, when in use, the inflatable sealing is inflated to the designated pressure, and the pressure of ten meters under water can be effectively sealed; the integrated tool is designed, so that the tool is convenient to mount and dismount, saves time and labor, can be repeatedly used and is suitable for occasions with limited space; the contact part of the rubber sealing piece with the surfaces of the bolt and the bolt hole can effectively seal without damaging the surfaces of the bolt and the bolt hole;

2. the utility model discloses the setting can assembled annular knurl screw rod, the removable pole that corresponds quantity is installed according to the demand, and during the screw thread stiff end revolved soon and twisted into the mounting groove, during the fixture block card advanced the draw-in groove, made removable pole fixed, avoided the gyration to drop, improved fixed firm nature, can assembled annular knurl screw rod, it is different required to satisfy, uses portably.

Drawings

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

FIG. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a cross-sectional view a-a of fig. 3 in accordance with the present invention;

FIG. 5 is a cross-sectional view of the knurled screw of the present invention;

in the figure: 1. a handle; 2. a fixing device I; 3. a fixing device II; 4. locking the screw rod; 5. protective rubber; 6. a sealing device I; 7. knurling a screw rod; 71. an internal spiral hexagonal groove; 72. fixing a rod; 73. a card slot; 74. a clamping block; 75. a detachable rod; 76. a thread fixing end; 77. mounting grooves; 8. sealing the bottom; 9. a sealing device II; 10. inflatable sealing; 11. m5 × 20 socket head cap screw; 12. an M3 multiplied by 15 hexagon socket head cap screw; 13. m4 locknut.

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.

Example 1

Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides an inflatable bolt sealing mechanism, including sealing device I6, the inside upper end of sealing device I6 is provided with inflatable seal 10, sealing device I6 is provided with annular knurl screw rod 7 all around, it is fixed to revolve wrong the screw through M4 lock nut 13 between the lower extreme of annular knurl screw rod 7 and the sealing device I6, the upper end of annular knurl screw rod 7 is provided with fixing device I2 and fixing device II 3 respectively, it is fixed through locking screw 4 between fixing device I2 and the fixing device II 3, the lower extreme of sealing device I6 is provided with bottom seal 8, the inboard of bottom seal 8 is provided with sealing device II 9, it is fixed through M3 x 15 hexagon socket head cap screw 12 between sealing device II 9 and the sealing device I6.

Specifically, fixing device I2 and fixing device II 3's upper end all is provided with handle 1, and it is fixed to revolve wrong the commentaries on classics through M5 x 20 hexagon socket head cap screw 11 between the lower extreme of handle 1 and fixing device I2 and fixing device II 3, through adopting above-mentioned technical scheme, makes things convenient for portable installation, improves the installation portability.

Concretely, fixing device I2 and the inboard circular slot that forms of fixing device II 3 are provided with protection rubber 5 in the circular slot that fixing device I2 and fixing device II 3 side formed, through adopting above-mentioned technical scheme, improve the leakproofness of contact through protection rubber 5.

Specifically, the side of inflatable seal 10 is equipped with the integrative check valve formula interface of gassing of aerifing, through adopting above-mentioned technical scheme, conveniently admits air and the regulation of gassing, avoids leaking.

When the embodiment uses, both hands take up inflatable bolt sealing mechanism through two handles 1, embolia inflatable bolt sealing mechanism from the bolt top, until putting bolt hole surface department, hold fixing device I2 and fixing device II 3 tightly to bolt relevant position department through locking screw 4, compress tightly sealing device I6 and bottom seal to bolt hole surface department through annular knurl screw 7, aerify inflatable seal 10 to appointed pressure through outside air supply, and this inflatable bolt sealing mechanism is sealed to be accomplished.

Example 2

The present embodiment is different from embodiment 1 in that: the knurled screw 7 comprises an inner spiral hexagonal groove 71, a fixed rod 72, a detachable rod 75, a thread fixing end 76 and a mounting groove 77, wherein the inner spiral hexagonal groove 71 is arranged at one end of the fixed rod 72, the mounting groove 77 is arranged at the other end of the fixed rod 72, the mounting groove 77 is connected with the detachable rod 75, the thread fixing end 76 is arranged on the side edge of the detachable rod 75, and the knurled screw is convenient to assemble and meets different requirements by adopting the technical scheme.

Specifically, the knurled screw 7 further comprises a clamping groove 73 and a clamping block 74, wherein the clamping groove 73 is formed in the side edge of the fixed rod 72 and the two sides of the detachable rod 75, the clamping block 74 is clamped in the middle of the clamping groove 73, the clamping block 74 is clamped in the clamping groove 73 by adopting the technical scheme, the detachable rod 75 is fixed, the rotation and the falling are avoided, and the fixing firmness is improved.

The detachable knurled screw 7 is arranged in the embodiment, the detachable rods 75 with the corresponding number are installed according to requirements, the thread fixing end 76 is screwed into the installation groove 77, and the fixture block 74 is clamped into the fixture groove 73, so that the detachable rods 75 are fixed, the rotation and falling are avoided, the fixing firmness is improved, the detachable knurled screw 7 meets different requirements, and the detachable knurled screw is portable in use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an inflatable bolt sealing mechanism, includes sealing device I (6), its characterized in that: the utility model discloses a sealing device, including sealing device I (6), the inside upper end of sealing device I (6) is provided with inflatable seal (10), be provided with annular knurl screw rod (7) around sealing device I (6), twist fixedly through M4 lock nut (13) between the lower extreme of annular knurl screw rod (7) and sealing device I (6), the upper end of annular knurl screw rod (7) is provided with fixing device I (2) and fixing device II (3) respectively, it is fixed through lock screw rod (4) between fixing device I (2) and fixing device II (3), the lower extreme of sealing device I (6) is provided with bottom seal (8), the inboard of bottom seal (8) is provided with sealing device II (9), it is fixed through M3 x 15 interior hexagonal cylinder head screw (12) between sealing device II (9) and sealing device I (6).

2. The inflatable bolt sealing mechanism of claim 1, wherein: the upper ends of the fixing device I (2) and the fixing device II (3) are respectively provided with a handle (1), and the lower end of the handle (1) is screwed and fixed with the fixing device I (2) and the fixing device II (3) through an M5 multiplied by 20 hexagon socket head cap screw (11).

3. The inflatable bolt sealing mechanism of claim 1, wherein: fixing device I (2) and fixing device II (3) inboard form the circular slot, be provided with protection rubber (5) in the circular slot that fixing device I (2) and fixing device II (3) side formed.

4. The inflatable bolt sealing mechanism of claim 1, wherein: the side edge of the inflatable seal (10) is provided with a one-way valve type interface integrating inflation and deflation.

5. The inflatable bolt sealing mechanism of claim 1, wherein: knurling screw rod (7) are including interior screw hexagonal groove (71), decide pole (72), removable pole (75), screw thread stiff end (76) and mounting groove (77), wherein, the one end of deciding pole (72) is provided with interior screw hexagonal groove (71), the other end of deciding pole (72) is provided with mounting groove (77), mounting groove (77) are connected with removable pole (75), the side of removable pole (75) is provided with screw thread stiff end (76).

6. The inflatable bolt sealing mechanism of claim 5, wherein: the knurled screw (7) further comprises a clamping groove (73) and a clamping block (74), wherein the clamping groove (73) is formed in the side edge of the fixed rod (72) and the two sides of the detachable rod (75), and the clamping block (74) is clamped in the middle of the clamping groove (73).