CN213900083U - Regulating valve packing sealing structure - Google Patents

Abstract

The utility model discloses a regulating valve packing structure, which comprises a main body, wherein the main body consists of a valve rod, a side wall, an inserting groove, a contact ring, an air cushion ring, an air duct, an extrusion plate, an extrusion block, a limit groove, an air duct and an air valve, the valve rod is arranged at the middle position of the main body, the valve rod comprises an upper cover plate, a sliding groove, a fixed screw and an outer sleeve ring, the contact ring is arranged at the front end of the inserting groove, the air cushion ring is arranged at the rear end of the contact ring, the air cushion ring sleeve is arranged on the contact ring, both sides of the air cushion ring are connected with the air duct, the other end of the air duct is connected with the air duct, the extrusion plate is arranged in the air duct, the air valve is arranged at the central position of the lower end of the air duct, the air cushion ring is inflated by the valve rod, the valve rod is surrounded and extruded by the expansion of the valve rod, the sealing performance of the valve rod inserting is effectively increased, the lower end thread groove is covered by the upper cover plate for reinforcement and sealing, effectively increase the sealed effect of main part, its simple structure, it is very convenient to use.

Description

Regulating valve packing sealing structure

Technical Field

The utility model relates to a seal structure technical field specifically is a governing valve packing structure.

Background

The filler of the regulating valve mainly plays a sealing role on the regulating valve, is a quick-wear part, the service life is usually between 5 ten thousand and 10 ten thousand times according to different working conditions, the common seasoning mainly comprises PTFE (polytetrafluoroethylene) graphite, the size is determined according to the size of the filler box and the valve rod of the valve body of the regulating valve, and the hard-sealing V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like;

however, the existing regulating valve sealing mechanism is often directly connected with the valve rod through a threaded structure, the sealing performance has certain problems, a screw is easy to slip and the sealing performance is poor, and meanwhile, the problem of looseness and no sealing is easy to occur at the joint of the upper end of the regulating valve sealing mechanism, so that the existing problems and the defects are overcome by upgrading and reconstructing on the basis of the existing sealing structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a governing valve packing structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a filling and sealing structure of an adjusting valve comprises a main body, wherein the main body consists of a valve rod, a side wall, an insertion groove, a contact ring, an air cushion ring, an air guide pipe, an extrusion plate, an extrusion block, a limiting groove, an air channel and an air valve, the valve rod is arranged at the middle position of the main body, the valve rod comprises an upper cover plate, a sliding groove, a fixing screw and an outer sleeve ring, the upper cover plate is fixedly arranged at two side positions of the upper end of the valve rod, the sliding groove is arranged in the upper cover plate, the outer sleeve ring is sleeved at the upper end of the fixing screw, the fixing screw is inserted in the upper cover plate through the outer sleeve ring, the side wall comprises a thread groove and a filling layer, the thread groove is positioned at the upper end of the side wall and is connected with an extension part of the fixing screw, the insertion groove is connected with the inside of the filling layer, the contact ring is provided with the contact ring at the front end, the air cushion ring is sleeved on the contact ring, and the air guide pipe is connected with the two sides of the air cushion ring, the other end of the air duct is connected with a vent groove, an extrusion plate is arranged in the vent groove, an extrusion block is fixed at the lower end of the extrusion plate, the lower end of the extrusion block is located in a limiting groove, and an air valve is arranged at the central position of the lower end of the vent groove.

Preferably, the outer collar is movably connected with the sliding groove.

Preferably, the fixing screw is fixedly connected with the outer sleeve ring.

Preferably, the two sides of the air cushion ring are provided with baffle blocks.

Preferably, a compression spring is arranged in the limiting groove.

Preferably, a protruding structure is arranged at the opening of the limiting groove.

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

1. the utility model discloses a be provided with the air cushion circle in the main part, when the valve rod inserts the main part inside, its both sides contact with the filling layer, and its lower extreme promotes the stripper plate and pushes down this moment, and lower extreme pneumatic valve is in the closed condition, and stripper block atress extrusion compression spring, compression spring atress shrink to the spacing inslot, and the air is rushed into the air cushion circle through the air duct by the extrusion in the air duct, and the air cushion circle aerifys the inflation and expands and surround the extrusion to the valve rod, effectively increases the sealing performance that the valve rod pegged graft, the utility model discloses simple structure, it is very convenient to use;

2. the utility model discloses a be provided with the upper cover plate in the main part, when the valve rod inserts in the main part, its upper end is provided with the upper cover plate, and the upper cover plate both sides are difficult for sealedly, pass through the screw hole with the fixed screw this moment and fix inside the lateral wall, and its upper end outer collar and spout swing joint need not rotate the valve rod when the knob screw whole, and the outer collar covers lower extreme thread groove simultaneously and consolidates sealedly to the main part, effectively increases the sealed effect of main part, the utility model discloses simple structure, it is very convenient to use.

Drawings

FIG. 1 is a front view of the overall structure of a packing seal structure of a regulating valve of the present invention;

FIG. 2 is a partial structural sectional view of a packing seal structure of a regulating valve according to the present invention;

fig. 3 is the utility model relates to a local structure plan view of governing valve packing structure.

In the figure: 1. a main body; 2. a valve stem; 21. an upper cover plate; 22. a chute; 23. fixing screws; 24. an outer collar; 3. a side wall; 31. a thread groove; 32. a filling layer; 4. inserting grooves; 5. a contact ring; 6. an air cushion ring; 7. an air duct; 8. a stop block is shielded; 9. a pressing plate; 10. extruding the block; 11. a compression spring; 12. a limiting groove; 13. a vent channel; 14. and (4) an air valve.

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. 1-3, the present invention provides a technical solution: a filling and sealing structure of an adjusting valve comprises a main body 1, wherein the main body 1 consists of a valve rod 2, a side wall 3, an insertion groove 4, a contact ring 5, an air cushion ring 6, an air guide pipe 7, an extrusion plate 9, an extrusion block 10, a limiting groove 12, an air channel 13 and an air valve 14, the valve rod 2 is arranged at the middle position of the main body 1, the valve rod 2 comprises an upper cover plate 21, a sliding groove 22, a fixing screw 23 and an outer collar 24, the upper cover plate 21 is fixedly arranged at two side positions of the upper end of the valve rod 2, the sliding groove 22 is arranged in the upper cover plate 21, the outer collar 24 is sleeved at the upper end of the fixing screw 23, the fixing screw 23 is inserted in the upper cover plate 21 through the outer collar 24, the side wall 3 comprises a thread groove 31 and a filling layer 32, the thread groove 31 is positioned at the upper end of the side wall 3 and is connected with an extending part of the fixing screw 23, the insertion groove 4 is connected with the insertion groove 4, the contact ring 5 is arranged at the front end of the insertion groove 4, the utility model discloses a contact ring 5, including contact ring 5, air duct 7, extrusion board 9, contact ring 5 rear end is provided with air cushion ring 6, air cushion ring 6 cover sets up on contact ring 5 and its both sides all connect the air duct 7, the air duct 7 other end is connected with air channel 13, be provided with extrusion board 9 in the air channel 13, extrusion board 9 lower extreme is fixed with extrusion piece 10, extrusion piece 10 lower extreme is located spacing groove 12, air channel 13 lower extreme central point puts and is provided with pneumatic valve 14.

The outer collar 24 is movably connected with the sliding groove 22, so as to facilitate the knob fixing screw 23.

The fixing screw 23 is fixedly connected with the outer collar 24 to prevent the outer collar 24 from being separated.

And blocking blocks 8 are arranged on two sides of the air cushion ring 6, so that the air cushion ring 6 is prevented from deviating.

And a compression spring 11 is arranged in the limiting groove 12, so that the extrusion plate 9 is convenient to reset.

A protruding structure is arranged at the opening of the limiting groove 12 to prevent the extrusion block 10 from being separated.

The working principle is as follows: when the utility model is used, the valve rod 2 is inserted into the main body 1 through the insertion groove 4 at the upper end of the main body 1, the two sides of the valve rod 2 are provided with the fixing screws 23, the valve rod is fixed with the thread groove 31 on the side wall 3 through the fixing screws 23, because the outer sleeve ring 24 is movably connected with the sliding groove 22, the whole valve rod 2 is kept still when the fixing, the knob fixing screws 23 are needed, the size of the outer sleeve ring 24 is larger than the size of the thread groove 31 at the lower end, the upper cover plate 21 forms covering sealing to the fixing part after the fixing, the sealing effect of the fixing part is avoided to be poor, the sealing effect of the main body 1 is effectively increased, in the fixing process, the valve rod 2 continuously moves downwards, the lower end of the valve rod penetrates into the insertion groove 4 through the contact ring 5 at the moment, the extrusion plate 9 is forced to move downwards at the moment, the extrusion block 10 moves downwards along with the extrusion plate 9, the compression spring 11 is forced to shrink and sinks into the limit groove 12, at the moment, the gas in the vent groove 13 is extruded, because pneumatic valve 14 is in the closed condition, in gas fills air cushion ring 6 through air duct 7, air cushion ring 6 is aerifyd the inflation and is extruded valve rod 2 and to its formation sealing washer, effectively increases the sealing performance of pegging graft between valve rod 2 and the main part 1, when needs take out, control pneumatic valve 14 gassing can, the utility model discloses simple structure, it is very convenient to use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 (6)

1. A governing valve packing structure, includes main part (1), its characterized in that: the main body (1) comprises a valve rod (2), a side wall (3), an insertion groove (4), a contact ring (5), an air cushion ring (6), an air guide pipe (7), an extrusion plate (9), an extrusion block (10), a limiting groove (12), an air vent groove (13) and an air valve (14), the valve rod (2) is arranged at the middle position of the main body (1), the valve rod (2) comprises an upper cover plate (21), a sliding groove (22), a fixing screw (23) and an outer sleeve ring (24), the upper cover plate (21) is fixedly arranged at two side positions of the upper end of the valve rod (2), the sliding groove (22) is arranged in the upper cover plate (21), the outer sleeve ring (24) is sleeved at the upper end of the fixing screw (23), the fixing screw (23) is inserted in the upper cover plate (21) through the outer sleeve ring (24), the side wall (3) comprises a thread groove (31) and a filling layer (32), the thread groove (31) is positioned at the upper end of the side wall (3) and is connected with an extension part of the fixing screw (23), packing layer (32) internal connection has inserting groove (4), inserting groove (4) front end is equipped with contact ring (5), contact ring (5) rear end is provided with air cushion ring (6), air cushion ring (6) cover sets up on contact ring (5) and air duct (7) are all connected to its both sides, air duct (7) other end is connected with air duct (13), be provided with stripper plate (9) in air duct (13), stripper plate (9) lower extreme is fixed with extrusion block (10), extrusion block (10) lower extreme is located spacing groove (12), air duct (13) lower extreme central point puts and is provided with pneumatic valve (14).

2. A regulator valve packing structure according to claim 1, wherein: the outer collar (24) is movably connected with the sliding groove (22).

3. A regulator valve packing structure according to claim 1, wherein: the fixing screw (23) is fixedly connected with the outer sleeve ring (24).

4. A regulator valve packing structure according to claim 1, wherein: and blocking blocks (8) are arranged on two sides of the air cushion ring (6).

5. A regulator valve packing structure according to claim 1, wherein: and a compression spring (11) is arranged in the limiting groove (12).

6. A regulator valve packing structure according to claim 1, wherein: the opening of the limiting groove (12) is provided with a convex structure.

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