CN208764417U - A kind of gate valve casting - Google Patents

Abstract

The utility model relates to a kind of metal castings, in particular to a kind of gate valve casting, including the valve body and valve deck being equipped with, cooperation is equipped with stem through-hole at the axle center of valve body and valve deck, valve rod is equipped in stem through-hole, valve body-side is correspondingly provided with liquid inlet and liquid outlet respectively, and the valve outer wall between stem through-hole and liquid inlet is equipped with reinforcing rib, and the valve outer wall between stem through-hole and liquid outlet is equipped with reinforcing rib；Balance mechanism is equipped in the middle part of valve deck；Guarantee that the stem through-hole of flashboard has reinforcing rib to be positioned and reinforced when carrying out casting finishing processing, working process is more readily accomplished, finished product rate is high, it is reinforced by reinforcing rib, reduces valve body strain, stem through-hole is unlikely to deform, it also is not in slight crack, the leakproofness for preferably guaranteeing sealing surface, ensures the safety of pipeline, so that daily operation is normally carried out；Meanwhile heat release hole is set on reinforcing rib, the operation for guaranteeing that gate valve shuts off and releases can be carried out preferably, extend the service life of gate valve.

Description

A kind of gate valve casting

Technical field

The utility model relates to a kind of metal casting, in particular to a kind of gate valve casting.

Background technique

Gate valve is an opening and closing element flashboard, and the direction of motion and flow direction of flashboard are perpendicular, gate valve can only make standard-sized sheet and Quan Guan cannot make adjustments and throttle.Gate valve is sealed by valve seat and rams contact, and usual sealing surface can deposited metal material To increase wearability, such as built-up welding 1Cr13, STL6, stainless steel.

In the prior art, most of gate valve is using forced seal, i.e., be by external force by force by lock when valve is closed Plate presses to valve seat, guarantees the leakproofness of sealing surface, which results in the stem through-hole of flashboard carry out casting finishing processing when just Must extreme care, yield rate is not high, and stem through-hole is regular under the intensive work state at work, it is long this with Toward the strain for being easy to cause stem through-hole, there is stem through-hole deformation and even situations such as slight crack occur, not can guarantee sealing surface Leakproofness, in some instances it may even be possible to situations such as leakage of pipeline occur, normal operation is had an impact；And valve deck support is improper to make It is unable to centering at the valve rod and valve seat of gate valve, making to be deteriorated increases, sealing performance decline.

Utility model content

The technical issues of the utility model solves is that in the prior art, most of gate valve is using forced seal, i.e. valve When door is closed, flashboard pressed into valve seat by force by external force, guarantee the leakproofness of sealing surface, it is logical which results in the valve rods of flashboard Hole is when carrying out casting finishing processing with regard to necessary extreme care, and yield rate is not high, and stem through-hole is regular at work Under intensive work state, it is if things go on like this easy to cause the strain of stem through-hole, stem through-hole deformation occurs and even occurs Situations such as slight crack, not can guarantee the leakproofness of sealing surface, in some instances it may even be possible to situations such as leakage of pipeline occurs, produce to normal operation It is raw to influence；And valve deck supports the improper valve rod that will cause gate valve and valve seat to be unable to centering, and making to be deteriorated increases, under sealing performance Drop.

The utility model is the technical scheme adopted is that provide a kind of gate valve casting, including the valve body and valve being equipped with Cooperation is equipped with stem through-hole at the axle center of lid, the valve body and valve deck, is equipped with valve rod, the valve body-side in the stem through-hole It respectively corresponds and is equipped with liquid inlet and liquid outlet, the valve outer wall between the stem through-hole and liquid inlet is equipped with reinforcing rib, described Valve outer wall between stem through-hole and liquid outlet is equipped with reinforcing rib；Balance mechanism is equipped in the middle part of the valve deck.

Preferably, the balance mechanism includes several balance weights, and any balance weight is integrally in inverted trapezoidal shape, if described Dry balance weight is with the setting substantially symmetrical about its central axis of the valve body.

Preferably, two location holes are symmetrically arranged on any balance weight.

Preferably, the bottom margin of valve deck is equipped with protruding ring, and the top edge of valve body is equipped with groove, the protruding ring it is outer The fitting setting of the inner wall of edge and groove.

Preferably, sealant is equipped between the outer rim of the protruding ring and the inner wall of groove.

Preferably, heat release hole is equipped between the reinforcing rib and the valve outer wall.

Preferably, the reinforcing rib is sheet muscle.

Preferably, flashboard is equipped in the valve body, the flashboard is set to stem bottom.

The utility model provides a kind of gate valve casting for optimizing structure, passes through the stem through-hole and valve body on valve body top Reinforcing rib is set on valve outer wall between the liquid inlet and liquid outlet of side, guarantees that the stem through-hole of gate valve is carrying out casting finishing There is reinforcing rib to be positioned and reinforced when work processing, working process is more readily accomplished, and finished product rate is high, and stem through-hole is in high-strength Stem through-hole is reinforced by reinforcing rib when under degree working condition, reduces valve body strain, and stem through-hole is unlikely to deform, will not also go out Existing slight crack, preferably guarantees the leakproofness of sealing surface, the safety of pipeline is ensured, so that daily operation is normally carried out；Meanwhile this Heat release hole is arranged in utility model on reinforcing rib, and ensure that does not influence valve body heat dissipation while increasing reinforcing rib, guarantees gate valve The operation shut off and released can be carried out preferably, extend the service life of gate valve；It, can by the balance mechanism being arranged on valve deck Effectively fix valve deck, guarantee that valve deck does not shift, in the case that the valve deck of gate valve casting be in balanced support, valve rod and Valve body is entirely on the center, is deteriorated and reduces, and sealing performance greatly promotes.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of gate valve casting described in the utility model；

Fig. 2 is the structural schematic diagram of valve body described in the utility model；

Fig. 3 is the structural schematic diagram of valve deck described in the utility model；

Fig. 4 is the structural schematic diagram of flashboard described in the utility model.

Specific embodiment

Below with reference to embodiment, the utility model is further described in detail, but the protection scope of the utility model is simultaneously It is without being limited thereto.

The utility model provides a kind of gate valve casting, including the valve body 1 and valve deck 2 being equipped with, it is characterised in that: institute It states cooperation at the axle center of valve body 1 and valve deck 2 and is equipped with stem through-hole 3, be equipped with valve rod 4,1 side of valve body in the stem through-hole 3 Portion is correspondingly provided with liquid inlet 5 and liquid outlet 6 respectively, and 1 outer wall of valve body between the stem through-hole 3 and liquid inlet 5, which is equipped with, to be reinforced Muscle 7,1 outer wall of valve body between the stem through-hole 3 and liquid outlet 6 are equipped with reinforcing rib 7；Balancing machine is equipped in the middle part of the valve deck 2 Structure.

In the utility model, 1 side of valve body is equipped with liquid inlet 5 and liquid outlet 6, and the liquid inlet 5 and liquid outlet 6 are used In meeting flowing in and out for medium.

In the utility model, it is provided with reinforcing rib 7 on 1 outer wall of valve body between stem through-hole 3 and liquid inlet 5 and liquid outlet 6, Guarantee that the stem through-hole 3 of valve body 1 has reinforcing rib 7 to be positioned and reinforced when carrying out casting finishing processing, working process is more It is readily accomplished, finished product rate is high, and when stem through-hole 3 is under intensive work state, stem through-hole 3 is carried out by reinforcing rib 7 It reinforces, reduces valve body 1 and strain, it is also not in slight crack that stem through-hole 3, which is unlikely to deform, preferably guarantee the leakproofness of sealing surface, The safety for ensureing pipeline, so that daily operation is normally carried out.

In the utility model, the balance mechanism includes several balance weights 8, and whole any balance weight 8 is in inverted trapezoidal Shape, several balance weights 8 are with the setting substantially symmetrical about its central axis of the valve body 1.

In the utility model, two location holes 9 are symmetrically arranged on any balance weight 8.

In the utility model, several balance weights 8 are with the setting substantially symmetrical about its central axis of the valve body 1, any balance Two location holes 9 are symmetrically arranged on block 8, balance weight 8 can guarantee that valve deck 2 is in the state of balance, prevent valve deck 2 from tilting, Cause valve rod 4 not entirely on the center with valve seat, deviation occur, causes unnecessary loss；Location hole 9 plays stable equilibrium block 8 Effect, ensure that going on smoothly for processing.

In the utility model, the bottom margin of the valve deck 2 is equipped with protruding ring 10, and the top edge of valve body 1 is equipped with groove 11, the outer rim of the protruding ring 10 and the inner wall of groove 11 are bonded setting.

In the utility model, sealant is equipped between the outer rim of the protruding ring 10 and the inner wall of groove 11.

In the utility model, the outer rim of the protruding ring 10 and the inner wall of groove 11 are bonded setting, increase leakproofness.

In the utility model, the sealant generally uses flexible graphite sealing ring, which has leakproofness The features such as good, corrosion-resistant, high-intensitive, wear-resisting, so that 2 good airproof performance of valve body 1 and valve deck, more durable.

In the utility model, heat release hole 12 is equipped between 1 outer wall of the reinforcing rib 7 and the valve body, the heat release hole 12 can For radiating and reducing thermal center, shrinkage cavity herein and leakage are eliminated, ensure that does not influence valve body 1 while increasing reinforcing rib 7 dissipates Heat, the operation for guaranteeing that gate valve shuts off and releases can be carried out preferably, extend the service life of gate valve.

In the utility model, it is contemplated that the importance of heat dissipation generally only sets sheet muscle for reinforcing rib 7, reduces valve body 1 Guarantee the efficiency of heat dissipation while strain.

In the utility model, flashboard 13 is equipped in the valve body 1, the flashboard 13 is set to 4 bottom of valve rod.

In the utility model, the flashboard 13 and the position of the valve rod 4 cooperation are equipped with sealant, guarantee the sealing of gate valve Property.

In the utility model, under normal circumstances, sealant uses flexible graphite sealing ring, which has sealing The features such as property is good, corrosion-resistant, high-intensitive, wear-resisting, so that flashboard 13 is relatively durable.

The utility model compared with prior art, provides a kind of gate valve casting for optimizing structure, by 1 top of valve body 1 side of stem through-hole 3 and valve body liquid inlet 5 and liquid outlet 6 between 1 outer wall of valve body on be arranged reinforcing rib 7, guarantee gate valve Stem through-hole 3 has reinforcing rib 7 to be positioned and reinforced when carrying out casting finishing processing, and working process is more readily accomplished, product High yield rate, stem through-hole 3 is reinforced by reinforcing rib 7 when stem through-hole 3 is under intensive work state, reduces valve body 1 Strain, it is also not in slight crack that stem through-hole 3, which is unlikely to deform, preferably guarantees the leakproofness of sealing surface, ensures the peace of pipeline Entirely, so that daily operation is normally carried out；Meanwhile heat release hole 12 is arranged in the utility model on reinforcing rib 7, ensure that and is increasing The heat dissipation of valve body 1 is not influenced while reinforcing rib 7, the operation for guaranteeing that gate valve shuts off and releases can be carried out preferably, extend gate valve Service life；By the balance mechanism being arranged on valve deck 2, valve deck 2 can be effectively fixed, guarantees that valve deck 2 does not shift, In the case that the valve deck 2 of gate valve casting is in balanced support, valve rod 4 and valve body 1 are entirely on the center, are deteriorated and reduce, and sealing performance is big It is big to be promoted.

Claims (8)

1. a kind of gate valve casting, including the valve body and valve deck being equipped with, it is characterised in that: at the axle center of the valve body and valve deck Cooperation is equipped with stem through-hole, is equipped with valve rod in the stem through-hole, the valve body-side is correspondingly provided with liquid inlet and out liquid respectively Mouthful, the valve outer wall between the stem through-hole and liquid inlet is equipped with reinforcing rib, the valve body between the stem through-hole and liquid outlet Outer wall is equipped with reinforcing rib；Balance mechanism is equipped in the middle part of the valve deck.

2. a kind of gate valve casting according to claim 1, it is characterised in that: the balance mechanism includes several balance weights, Any balance weight is integrally in inverted trapezoidal shape, and several balance weights are with the setting substantially symmetrical about its central axis of the valve body.

3. a kind of gate valve casting according to claim 2, it is characterised in that: be symmetrically arranged with two on any balance weight Location hole.

4. a kind of gate valve casting according to claim 1, it is characterised in that: the bottom margin of the valve deck is equipped with protrusion Ring, the top edge of valve body are equipped with groove, and the outer rim of the protruding ring and the inner wall of groove are bonded setting.

5. a kind of gate valve casting according to claim 4, it is characterised in that: the outer rim of the protruding ring and the inner wall of groove Between be equipped with sealant.

6. a kind of gate valve casting according to claim 1, it is characterised in that: set between the reinforcing rib and the valve outer wall There is heat release hole.

7. a kind of gate valve casting according to claim 1, it is characterised in that: the reinforcing rib is sheet muscle.

8. a kind of gate valve casting according to claim 1, it is characterised in that: be equipped with flashboard, the flashboard in the valve body Set on stem bottom.