CN210068426U

CN210068426U - Valve and vacuum pump fastening structure

Info

Publication number: CN210068426U
Application number: CN201920726727.6U
Authority: CN
Inventors: 高东军
Original assignee: Taicang Natural Gas Co Ltd
Current assignee: Taicang Natural Gas Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-02-14
Anticipated expiration: 2029-05-21

Abstract

The utility model discloses a valve and vacuum pump fastening structure, including first flange, second flange and screw, first flange and second flange pass through bolt fixed connection, the nut is installed to the end screw thread that the bolt passed first flange and second flange, be fixed with first sealed pad between the relative one side of first flange and second flange, first flange and second flange junction top joint have the second semicircle ring, first flange and second flange junction below joint have first semicircle ring, the second semicircle ring both ends outside has all welded the second fixed block, the screw is twisted into in second fixed block and the first fixed block. The utility model has the advantages of set up fastening structure in flange joint, with junction secondary seal, can continue to use after flange joint leaks.

Description

Valve and vacuum pump fastening structure

Technical Field

The utility model relates to the technical field of valves, specifically be a valve and vacuum pump fastening structure.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. A valve for a fluid control system. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

The valve passes through the flange with vacuum pump connection department and fixes, and valve live time has been of a specified duration can lead to the junction flange not hard up, the condition of leaking appears, influences the use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve and vacuum pump fastening structure possesses and sets up fastening structure in flange joint department, with the junction secondary seal, can continue the advantage of using after the flange joint leaks, has solved valve live time and has been of a specified duration and can lead to the junction flange not hard up, the condition of leaking appears, influences the problem of using.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a valve and vacuum pump fastening structure, includes first flange, second flange and screw, first flange and second flange pass through bolt fixed connection, the nut is installed to the terminal screw thread that the bolt passed first flange and second flange, be fixed with first sealed pad between the relative one side of first flange and second flange, first flange and second flange junction top joint have the second semicircle ring, first flange and second flange junction below joint have first semicircle ring, the second semicircle ring both ends outside has all welded the second fixed block, first semicircle ring both ends outside has all welded first fixed block, the screw is twisted into in second fixed block and the first fixed block.

Preferably, threaded holes matched with the bolts are formed in the first flange and the second flange, and round holes corresponding to the threaded holes are formed in the first sealing gasket.

Preferably, the first semicircular ring and the second semicircular ring form a complete circular ring, grooves are formed in the inner sides of the first semicircular ring and the second semicircular ring, a second sealing gasket is fixedly attached to the inner sides of the grooves, and the second sealing gasket is attached to the joint of the first flange and the second flange.

Preferably, the second fixing block and the first fixing block are both provided with screw holes matched with screws.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model achieves the effect of sealing the flange joint for the second time by arranging the first semicircular ring and the second semicircular ring, the utility model is provided with the first semicircular ring and the second semicircular ring, the inner sides of the first semicircular ring and the second semicircular ring are both provided with grooves, the second sealing gasket is fixedly laminated in the grooves, the first flange is connected with a vacuum pump, the second flange is connected with a valve, the first flange and the second flange are fixed by bolts and nuts, after the first flange and the second flange are fixed, the first semicircular ring and the second semicircular ring are sleeved at the joint of the first flange and the second flange, the first flange and the second flange are both clamped in the grooves and are laminated with the second sealing gasket, the first semicircular ring and the second semicircular ring form a whole circular ring to sleeve the first flange and the second flange, the screws are screwed into the first fixing block and the second fixing block to fix the first semicircular ring and the second semicircular ring, when the first flange and the second flange joint appear leaking, the first semicircular ring and the second semicircular ring seal the joint of the first flange and the second flange, so that the flange can be continuously used, the maintenance frequency is reduced, and the cost is reduced.

Drawings

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

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

fig. 3 is a left side view structure diagram of the present invention;

fig. 4 is a left side view connection structure diagram of the first semicircular ring and the second semicircular ring of the present invention;

fig. 5 is a schematic front sectional structural view of the first semicircular ring and the second semicircular ring of the present invention.

In the figure: 1. a first flange; 2. a first semicircular ring; 3. a second flange; 4. a first fixed block; 5. a second semi-circular ring; 6. a screw; 7. a second fixed block; 8. a first gasket; 9. a bolt; 10. a second gasket; 11. a nut; 12. and (4) a groove.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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 in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides an embodiment: the utility model provides a valve and vacuum pump fastening structure, including first flange 1, second flange 3 and screw 6, first flange 1 and vacuum pump connection, second flange 3 is connected with the valve, first flange 1 and second flange 3 pass through bolt 9 fixed connection, all set up the screw hole with bolt 9 looks adaptation on first flange 1 and the second flange 3, bolt 9 passes the screw hole on first flange 1 and the second flange 3, the laminating of first flange 1 and second flange 3, bolt 9 passes the one end screw thread of first flange 1 and second flange 3 and installs nut 11, tighten nut 11, bolt 9 is fixed, thereby it is fixed with first flange 1 and second flange 3. Be fixed with first sealed 8 that fills up between the relative one side of first flange 1 and second flange 3, set up the round hole that corresponds with the screw on the first sealed 8 that fills up, bolt 9 passes the round hole, and first sealed 8 that fills up seals the junction of first flange 1 and second flange 3, prevents to leak.

First flange 1 and the joint top joint of second flange 3 have second semicircle ring 5, and the joint below joint of first flange 1 and second flange 3 has first semicircle ring 2, and first semicircle ring 2 and second semicircle ring 5 constitute whole ring, and after first flange 1 and second flange 3 are fixed, sheathe first semicircle ring 2 and second semicircle ring 5 in first flange 1 and the joint of second flange 3, first semicircle ring 2 and second semicircle ring 5 seal first flange 1 and the joint of second flange 3. The first semicircle ring 2 and the 5 inboard recesses 12 of all seting up of second semicircle ring, in first flange 1 and the joint of second flange 3 entered recess 12, the laminating was fixed with the sealed pad 10 of second in the recess 12, the sealed pad 10 of second and the laminating of first flange 1 and the joint of second flange 3, the sealed outside that 10 will first flange 1 and the joint of second flange 3 of the sealed pad of second is sealed. Second fixed block 7 has all been welded in the outside of second semicircle ring 5 both ends, first fixed block 4 has all been welded in the outside of 2 both ends of first semicircle ring, screw 6 screws into in second fixed block 7 and the first fixed block 4, all set up the screw with screw 6 looks adaptation on second fixed block 7 and the first fixed block 4, first semicircle ring 2 and second semicircle ring 5 cover are behind first flange 1 and second flange 3 junction, screw 6 screws into in first fixed block 4 and the second fixed block 7 with first semicircle ring 2 and second semicircle ring 5 fixed, when first flange 1 and second flange 3 junction appear leaking, first semicircle ring 2 and second semicircle ring 5 seal the junction of first flange 1 and second flange 3, can continue to use, reduce the maintenance number of times, reduce cost.

The working principle is as follows: first flange 1 and vacuum pump connection, second flange 3 is connected with the valve, screw hole on first flange 1 and the second flange 3 is passed to bolt 9, first flange 1 and the laminating of second flange 3, screw up nut 11, sheathe in first semicircle ring 2 and second semicircle ring 5 at first flange 1 and second flange 3 junction, screw 6 is twisted into and is fixed first semicircle ring 2 and second semicircle ring 5 in first fixed block 4 and the second fixed block 7, when first flange 1 and second flange 3 junction appear leaking, the sealed 10 of second that is sealed in first semicircle ring 2 and the second semicircle ring 5 seals up the junction of first flange 1 and second flange 3, can continue to use.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a valve and vacuum pump fastening structure, includes first flange (1), second flange (3) and screw (6), its characterized in that: first flange (1) and second flange (3) are through bolt (9) fixed connection, bolt (9) pass one end screw thread of first flange (1) and second flange (3) and install nut (11), be fixed with first sealed pad (8) between first flange (1) and second flange (3) relative one side, first flange (1) and second flange (3) junction top joint have second semicircle ring (5), first flange (1) and second flange (3) junction below joint has first semicircle ring (2), second semicircle ring (5) both ends outside all welds second fixed block (7), first semicircle ring (2) both ends outside all welds first fixed block (4), screw (6) are twisted into in second fixed block (7) and first fixed block (4).

2. A valve and vacuum pump fastening structure according to claim 1, wherein: threaded holes matched with the bolts (9) are formed in the first flange (1) and the second flange (3), and round holes corresponding to the threaded holes are formed in the first sealing gasket (8).

3. A valve and vacuum pump fastening structure according to claim 1, wherein: the first semicircle ring (2) and the second semicircle ring (5) form a whole circle ring, the inner sides of the first semicircle ring (2) and the second semicircle ring (5) are provided with grooves (12), a second sealing gasket (10) is fixedly attached in the grooves (12), and the joint of the second sealing gasket (10) and the first flange (1) and the second flange (3) is attached.

4. A valve and vacuum pump fastening structure according to claim 1, wherein: and screw holes matched with the screws (6) are formed in the second fixing block (7) and the first fixing block (4).