CN218780845U - Quick plugging device for valve - Google Patents

Abstract

The utility model belongs to pipeline valve plugging device especially indicates a quick plugging device of valve. Including the sleeve pipe, fixed connection is in the top flange and the bottom flange at sleeve pipe both ends, the sleeve sets up in sleeve pipe inner chamber and rather than coaxial assembly, it has the packing to fill in the cavity between sleeve pipe and the sleeve pipe, sleeve lower part cavity can cooperate or mesh with valve rod upper portion axial key, top flange upper surface sealing is equipped with the gland, the sleeve top extends outside the gland and be equipped with on it can with the interface of twist grip adaptation, the sleeve middle part expands and forms the reducing portion, telescopic reducing portion both ends respectively with gland and the cooperation of the inboard tang of bottom flange. The utility model discloses effectively solved and used and the operational difficulty scheduling problem on jumbo size, pneumatic, the electric valve that prior art exists, had that the assembly of being convenient for, the installation degree of difficulty is little, the leaking stoppage does not influence advantages such as valve work.

Description

Quick plugging device for valve

Technical Field

The utility model belongs to pipeline valve plugging device especially indicates a quick plugging device of valve.

Background

The valve rod is an important part for adjusting the opening of the valve in use of the valve, and in the process of frequently opening and closing the valve, the valve rod packing is easy to wear and age to cause the packing to lose efficacy; or because the valve rod rubs with the valve body in the opening and closing process, the valve rod is worn and torn to lead to the reason such as it is inseparable with the valve body laminating, leads to the inside fluid medium of valve to leak along the valve rod direction, when the valve can't prevent the valve leakage through changing the inside packing of valve rod, need change leaking the valve.

However, in some parts, the normal operation of the equipment can be influenced by replacing the valve; for valves with larger calibers, the replacement cost is more expensive. Under the condition, the valve is blocked by the valve blocking device under the condition that the normal operation of the equipment is not influenced, so that the influence of equipment parking on production can be reduced. Meanwhile, the maintenance cost of the valve is greatly reduced by plugging the drain electrode of the large-caliber valve.

The background art retrieved by the applicant includes:

a valve plugging device is disclosed in the utility model patent with patent number CN201220050939, the main technical concept is: including compressing tightly strip, fastening area, seal housing and arranging the gland packing in the seal housing in, the both ends that compress tightly the strip are provided with the bolt respectively, the valve body is walked around at the middle part in fastening area, and its both ends are arranged in respectively on the bolt, and respectively through with bolt threaded connection's nut pins the location, the valve rod is passed at the middle part that compresses tightly the strip to extend one at the middle part and encircle the bulge of valve rod, seal housing arranges in on the valve bonnet, gland packing arranges in on the screw thread extrusion spare, the bulge is hugged closely gland packing. Although the prior art can rapidly eliminate leakage and ensure continuous production, the operation difficulty is higher when the size of the leakage valve is larger, and the leakage valve is difficult to be applied to pneumatic and electric valves.

The applicant does not find a literature report similar to the present application in the existing domestic patent database.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick plugging device of valve not only does not influence the valve normal use after the installation, is particularly useful for installing more valves of price such as electronic, pneumatic transmission moreover, can greatly reduce cost of maintenance.

The whole technical concept of the utility model is that:

quick plugging device of valve, the installation comprises a sleeve pipe, fixed connection is in the top flange and the bottom flange at sleeve pipe both ends, the sleeve sets up in the sleeve pipe inner chamber and rather than coaxial assembly, it has the packing to fill in the cavity between sleeve and the sleeve pipe, sleeve lower part cavity can cooperate or mesh with valve rod upper portion axial key, top flange upper surface sealing is equipped with the gland, the sleeve top extends outside the gland and be equipped with on it can with the interface of twist grip adaptation, the sleeve middle part expands out and forms the reducing portion, telescopic reducing portion both ends cooperate with gland and the inboard tang of bottom flange respectively.

The applicant needs to say that the selection of the sealing medium in the cavity between the sleeve and the sleeve is correspondingly selected and matched according to the difference of the transmission media in the valve, and the selection comprises sealing filler, framework oil seal, packing filler, mud filler and the like; the sealing filler includes but is not limited to asbestos fabric filler, carbon fiber filler, rubber filler, flexible graphite filler, engineering plastic filler and the like, and the sealing filler belongs to the existing mature technology and is a commercially available commodity, so that the applicant is not described herein again.

The specific technical concept of the utility model is that:

the main effect of interface is the adaptation of guaranteeing sleeve and twist grip, and it can adopt multiple mechanical connection mode, wherein comparatively simple and convenient and easy technical means who realizes is, the interface adopt to set up in the key or the keyway of sleeve top surface along the axial.

In order to enhance the connection reliability with the rotating handle, a more preferable technical implementation means is that the connecting device further comprises a second screw hole which is matched with the rotating handle and is arranged on the gland and the top flange.

In order to avoid the leakage of the sealing filler and further realize the good sealing of the device, a more preferable technical implementation means is that a second sealing gasket is arranged between the top flange and the gland.

Screw holes are uniformly distributed on the top flange, the gland and the bottom flange.

In order to realize coaxial transmission of the sleeve and the valve rod and facilitate manufacture, the preferred technical implementation means is that a key or a key groove which can be matched with an axial key on the upper part of the valve rod is arranged in a cavity on the lower part of the sleeve.

In the description of the present invention, the terms "two ends", "lower portion", "middle portion", "axial direction", "upper portion", "upper surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of simplifying the description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The technical progress of the utility model lies in:

1. the utility model adopts the sleeve which is coaxially matched with the top of the valve rod in a transmission way, and is matched with components such as a bottom flange, a top flange, a sleeve, a gland and the like, so that firstly, the sleeve can be axially limited while the sleeve rotates; secondly, the assembly and the working stability among the structural parts are favorably realized; thirdly, the assembly connection with the valve rod is convenient to realize.

2. The structural design of the top flange and the bottom flange is convenient for realizing the assembly between the top flange and the adjacent parts; secondly, the valve is convenient to process and manufacture and is matched with the existing valve; thirdly, the installation difficulty is greatly reduced; fourthly, the valve can be normally used while the plugging operation is completed.

3. The material of the sealing medium in the cavity between the sleeve and the sleeve can be flexibly selected and matched according to the requirement of conveying the fluid medium.

4. The structural design of the sealing gasket can effectively meet the sealing between the structural parts and avoid the leakage of fluid medium through the fit clearance of the parts.

Drawings

Fig. 1 is a schematic structural view of the present invention in a non-operating state.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a bottom view of fig. 1.

Fig. 4 is a schematic structural diagram of the present invention in an operating state.

The reference numbers in the drawings are as follows:

1. a first keyway; 2. a sleeve; 3. a first screw hole; 4. a gland; 5. a top flange; 6. a second screw hole; 7. a sealing medium; 8. a third screw hole; 9. a bottom flange; 10. a valve flange; 11. a valve body; 12. a valve stem; 13. a first sealing gasket; 14. a sleeve; 15. a second keyway; 16. and a second sealing gasket.

Detailed Description

The present invention is further described with reference to the following examples, which should not be construed as limiting the scope of the present invention, but the scope of the present invention is defined by the following claims, and any equivalent technical means made according to the description should not be construed as departing from the scope of the present invention.

The overall concept of the embodiment is as shown in the figure, the quick valve leak-stopping device comprises a sleeve 14, a top flange 5 and a bottom flange 9 welded at two ends of the sleeve 14, a sleeve 2 is arranged in an inner cavity of the sleeve 14 and coaxially assembled with the inner cavity, a cavity between the sleeve 2 and the sleeve 14 is filled with a sealing filler 7, a second key slot 15 arranged in a lower cavity of the sleeve 2 can be matched with an axial key at the upper part of a valve rod 12, a second sealing gasket 16 is arranged between the upper surface of the top flange 5 and a gland 4, the top gland 4 of the sleeve 2 extends out of the top gland 4, a port capable of being matched with a rotating handle is arranged on the top gland, the middle part of the sleeve 2 expands to form a diameter-variable part, and two ends of the diameter-variable part of the sleeve 2 are respectively matched with the gland 4 and an inner spigot of the bottom flange 9.

The interface adopts a first key groove 1 which is axially arranged on the outer surface of the top of the sleeve 2.

The top flange 5 and the gland 4 are uniformly provided with a first screw hole 3 and a second screw hole 6 which can be matched with fastening bolts, and the bottom flange 9 is uniformly provided with a screw hole matched with the valve flange 10.

The working principle of the embodiment is as follows:

when the fluid in the valve body 11 leaks out from the gap between the valve flange 10 and the valve rod 12, the following method is adopted for stopping leakage:

a. selecting corresponding sealing medium 7 to be arranged in a cavity between the sleeve 2 and the sleeve 14 according to different fluid media;

b. the top flange 5 and the gland 4 are fixed through the first screw hole 3 by adopting a bolt;

c. inserting the sleeve 2 and the top of the valve rod 12 into a second key groove 15 in the valve rod 12 through a key;

d. placing a first sealing gasket 13 on the upper surface of the valve flange 10;

e. inserting the valve stem 12 into the socket in the socket 2 and inserting the key on the valve stem 12 into the second key slot 15;

f. fixing a bottom flange 9 and a valve flange 10 through a third screw hole 8 and a fastening bolt;

g. the handle or power actuator of the valve original belt is combined with the gland 4 and/or the top flange 5 through the second screw hole 6, and is combined with the sleeve 2 through the first key slot 1.

Claims (6)

1. Quick plugging device of valve, its characterized in that includes sleeve pipe (14), top flange (5) and bottom flange (9) at fixed connection both ends in sleeve pipe (14), sleeve (2) set up in sleeve pipe (14) inner chamber and rather than coaxial assembly, it has sealing medium (7) to fill in the cavity between sleeve (2) and sleeve pipe (14), sleeve (2) lower part cavity can cooperate or mesh with valve rod (12) upper portion axial key, top flange (5) upper surface seal is equipped with gland (4), sleeve (2) top is extended outside gland (4) and is equipped with the interface that can with the twist grip adaptation on it, sleeve (2) middle part expands and forms the variable diameter portion, the variable diameter portion both ends of sleeve (2) respectively with gland (4) and bottom flange (9) inboard tang cooperation.

2. The quick valve leak stopping device according to claim 1, wherein the interface is a key or a keyway axially arranged on the outer surface of the top of the sleeve (2).

3. The quick valve leakage stopping device according to claim 1 or 2, further comprising a second screw hole (6) which is adapted to the rotating handle and is arranged on the gland (4) and the top flange (5).

4. The quick valve leak stopping device according to claim 1, wherein a second sealing gasket (16) is arranged between the top flange (5) and the gland (4).

5. The quick valve leakage stopping device according to claim 1 or 4, wherein the top flange (5) and the bottom flange (9) of the gland (4) are uniformly provided with screw holes.

6. The quick valve leakage stopping device according to claim 1 or 4, characterized in that a key or a key groove which can be matched with an axial key at the upper part of the valve rod (12) is arranged in the cavity at the lower part of the sleeve (2).

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