CN2439576Y - Optimized ceramic sealing valve cone - Google Patents

Abstract

The utility model relates to an optimized ceramic sealing valve cone. Two ceramic chips or three ceramic chips are all replaced by the optimized structure of a moving chip, a fixed chip and a ceramic ring. One side that the fixed chip and a cushion ring are abutted is designed into an abnormity structure body with a concave surface, and the optimized structure can be used for all ceramic chip valves. The service life of the valves is enhanced, the problem of the seal leakage of a ceramic valve core is solved effectively, and the contradictories between flow quantity and reliability, and between sealing and switching torque are overcome reasonably. When a straight through valve is formed, the straight through valve can be used in two directions.

Description

Optimize the ceramic seal spool

The utility model relates to a kind of optimization ceramic seal spool.

Existing ceramic seal spool, what adopt as the water mixing valve core of angle general formula list water nozzle spool and contrary general formula all is two ceramics structures (stator and moving plates), and general straight-through type is generally three ceramics structures (moving plate of folder between the identical stator of two chip architectures), its mutual faying surface is smooth, parallel and smooth, and is equipped with corresponding valve body and sealed member is formed various ceramic seal valves.The spool of two common ceramics structures, moving plate rotate or the translation process in, also have the friction between the non-ceramics parts, often before the ceramics wearing and tearing, wear and tear already between the non-ceramics parts and cause leakage.The wear resistance of ceramics is failed whole bringing into play; And no matter angle general formula or straight-through type spool all adopt the plane rotation sealing means, and ceramic plate adopts uniform fan shaped borehole structure more, thereby its flow is decided by to form the area size of the fan shaped borehole of the stator of ceramics and moving plate.When certain, fan-shaped hole count of ceramics diameter and one timing of its central angle, the best method that strengthens the fan shaped borehole area for the raising flow is the width that reduces to fan arc place sealing strip, the edge rings band of round ceramics is narrowed down, but this certainly will influence the sealing reliability of (passing through seal washer) between ceramics and the valve body at fan arc place sealing strip, the result reduces the pressure-resistant seal performance of valve, the total quality unreliability is increased, cause this a pair of contradiction between reliability and the flow to be difficult to for a long time solve.Equally also there is the contradiction between sealing and the switch torque (feel), and owing to also there be can not two-wayly use on the function in structural reason.

The objective of the invention is to overcome above shortcoming, the ceramic seal spool of the optimization type structure of a kind of two ceramics and a porcelain ring is provided, with the wearing and tearing of eliminating non-ceramics parts or under the prerequisite that does not increase the ceramics external diameter, strengthen the fan shaped borehole area, improving existing two ceramics and three ceramics is maximum discharge and the high reliability and the working life thereof of the various valves of spool as far as possible.

Another object of the present invention provides the versatility spool of a kind of two ceramics and a porcelain ring so that assembling and maintenance use.

The technical solution of the utility model is the improvement to the porcelain spool of existing two ceramics or three ceramics, is about to the porcelain spool of two ceramics.Increase by a porcelain ring again, and three ceramics are replaced a stator of moving plate one side with the porcelain ring, being about to ceramic valve core, all to add the form of optimizing structure of a porcelain ring with two ceramics of stator and moving plate alternative, and this porcelain ring is specifically designed as the structure that endoporus is coniform hole; And then consider good airproof performance again and improve flow that also one side, plane that its stator and packing ring are fitted is designed to a concave surface polymorphic structure body, and the example of this multiple valve of optimizing structure is showed its extensive use as several specific embodiments.

Obviously the utility model both had been different from the porcelain spool that has only two ceramics, different with three ceramics porcelain spools again, it has solved the difficult problem of the last seal leakage of the valve that ceramic valve core forms effectively, greatly improved the working life of whole valve, and ingenious reasonably overcome between flow and the reliability and sealing and switch torque between contradiction, and make that the straight-through valve of being formed is two-way all can be used.

Describe the utility model in detail below in conjunction with drawings and Examples.

Fig. 1. the utility model (have seal washer and pull out handle) basic structure decomposing schematic representation.

Fig. 2. the utility model water mixing valve core is analysed and observe corresponding schematic representation with decomposition texture.

Fig. 3. the right elevation of the utility model stator structure.

Fig. 4. the plan view of the utility model stator structure.

Fig. 5. the left view of the utility model stator structure.

Fig. 6. the C-C sectional view of the utility model stator structure.

Fig. 7. the general spool erection drawing of general straight-through type of the present utility model.

Fig. 8 is the general spool A-A of a Fig. 7 sectional view.

Fig. 9 is the general spool B-B of a Fig. 7 sectional view

Figure 10. the decomposing schematic representation of the another kind of straight-through type spool of the utility model.

Figure 11. the decomposing schematic representation of the utility model angle general formula spool.

Shown in Fig. 1, Fig. 7-9, the stator 1 that the utility model includes fan shaped borehole with can with dial handle 10 moving plate 2 of the band linkage structure of commissure mutually, it is characterized in that it also comprises a porcelain ring 3 with coniform hole that fits with moving plate 2, and the toroidal surface of big footpath one side in the female cone shape hole of porcelain ring 3 and moving plate 2 mutual highi degree of accuracy are fitted smoothly.Be that above-mentioned porcelain ring 3 is not the circular or tubular body of a rule, but porcelain ring that endoporus is a tapered hole, therefore the toroidal surface of the bi-side of porcelain ring 3 has width not, the porcelain ring 3 of this structure can guarantee under the prerequisite that does not stop moving plate fan shaped borehole area, again axial limiting shoulder H can be set on shell core or valve body ₁And H ₂In this routine throughway valve, also the porcelain core shell can be saved sometimes, porcelain core is directly installed among the valve body.In Fig. 2, the structure (stator 1 and moving plate 2) that as the former spool of mixer tap only is two ceramics is as adding a porcelain ring 3 (this porcelain ring 3 also is that non-ordinary light is sliding and smooth with moving plate 2 matching surfaces, moving plate 2 can translation or level and smooth rotation between stator 1 and porcelain ring 3) again on moving plate 2.When moving plate 1 moves to left end, the A on the stator 1, B hole are cut off sealing by moving plate 2, and when moving plate 1 moves to right-hand member, the A on the stator 1, B hole are communicated with by the die cavity D on the moving plate 2 and open.The utility model is advocated the ceramic seal spool of the optimization of constructing, obviously, the spool of two ceramics installed additional porcelain ring 3 after, then make the motion of its moving plate 2 no longer produce the friction between non-ceramics and improved the life-span greatly.On the basis of former two ceramics valve core structures, installed porcelain ring 3 backs example of the present utility model additional as Fig. 2, Figure 10, shown in Figure 11 being.

Consider and improve flow to greatest extent, also can be further the stator 1 of common disk shape be designed to the polymorphic structure body that a side is a concave surface, shown in Fig. 3-6, be about to the fan-shaped a ' od ' of the faying surface of moving plate 2 gradually expansion be the fan-shaped face abcd of opposite side, also be fan-shaped a ' od ' in a side (R plane) that stator 1 and moving plate 2 fit, fan-shaped face abcd is then at opposite side, fan-shaped on fan-shaped a ' od ' and the moving plate 2 is (the position size is just the same) that fits like a glove, and the area of fan-shaped face abcd is much larger than fan-shaped a ' od ', this polymorphic structure body of this fan shaped borehole is if successively the sectorial area of each cross-sectional section is all greater than the right flank of stator 1---the sectorial area on the R plane, when water flows into a ' od ' fan shaped borehole when the covering of the fan of abcd flows out, each sectorial area vertical with water (flow) direction is all more than or equal to the sectorial area on the R plane of stator 1, like this, the flow of promptly guaranteeing stator 1 is not less than the flow on the moving plate 2, only adopt this structure, just strengthened the arc section diameter (obviously should make the stator of one side and another routine porcelain ring on this arc section, keep overlapping) of the fan shaped borehole of moving plate 2 as far as possible, so under the prerequisite that does not increase the ceramics external diameter, just improved flow to greatest extent.

The utility model of constructing thus is that existing spool by two ceramics is increased a porcelain ring, and the spool of three ceramics is replaced the wherein spool of optimizing structure of a stator with the porcelain ring, and no matter the concrete structure of moving plate 2 how, fits in the valve that corresponding core shell or valve body can be formed the ceramic plate class of various high-qualitys.Consider versatility of the present utility model,, a stator packing ring 4 and ring packing ring 5 are set respectively, and its containing is fixed in left core shell 8 and the right core shell 9 with its shoulder H at the stator 1 of above-mentioned spool and porcelain ring 3 sides as embodiment ₁And H ₂And corresponding Sealing is that the left packing ring 6 of O shape round seals with right packing ring 7, again with dialling the blind hole S that handle 10 inserts in the moving plates 2 ₁In just form general spool.And then consider that a side bears under the hydraulic pressure condition with higher of current, the water port M of the stator packing ring 4 of stator 1 side of above-mentioned spool and left core shell 8 can be designed to three fan shaped borehole central lines and three fan shaped boreholes that area is bigger with stator 1, to bear higher hydraulic pressure from the left side current, promptly than left core shell 8 during for the water port of circular hole the pressure on the stator 1 reduce half approximately, make feel light to reduce moment of rotation like this, be beneficial to realize automatic control.

The location linkage structure of above-mentioned moving plate 2 can be the blind hole S on 2 side weeks of moving plate or the plane according to the cooperation needs of dialling handle 10 variety of ways ₁Or dog (latter Tu Lve), as Fig. 9, Figure 10.Can find out obviously also that from figure porcelain ring 3 of the present utility model can make the handle 10 of dialling of various ways pass and insert blind hole S on moving plate 2 planes from interior ₁Or groove S ₂In, thereby can make the valve of various different purposes.

In the valve core structure of above-mentioned two one rings, since moving plate with the porcelain ring place that matches, its planeness is the same with the another side with degree of finish all to reach very high precision, when promptly being all high planeness and degree of finish in the bi-side of moving plate (2), so, require under the not really high situation, at some for reducing cost, the also available other materials of porcelain ring replaces, as teflon etc.Special in the angle general formula spool as Figure 11, the porcelain ring also can save.

In sum, the utility model has the advantages that apparent. The spool that the utility model is constructed or utilize this practicality The various potsherd valves that novel cooperation forms with corresponding valve body have satisfactorily solved flow and sealing perfectly, reliability it Between contradiction and the switch torque and the sealing between contradiction, also reasonably solved the difficulty of seal leakage on the ceramic valve core Topic has prolonged possibility that obtains maximum stream flow under service life of whole valve and the same scale, so has opened up ceramic close The new world of envelope spool technology and application thereof.

Claims (6)

1. optimization ceramic seal spool, it comprise stator (1) with can with dial handle (10) moving plate (2) of the band linkage structure of commissure mutually, it is characterized in that it also comprises a porcelain ring (3) with coniform hole that fits with moving plate (2), and the toroidal surface of big footpath one side in porcelain ring (3) female cone shape hole and moving plate (2) mutually highi degree of accuracy smoothly fit.

2. spool according to claim 1 is characterized in that above-mentioned stator (1) one side is the polymorphic structure body of concave surface, be about to the fan-shaped ao ' d ' of the faying surface of moving plate (2) gradually expansion be the abcd of the sector shape of opposite side.

3. spool according to claim 1 and 2 is characterized in that above-mentioned porcelain ring (3) can substitute or save with polytetrafluoroethylene ring when two routine faces of moving plate (2) are all high planeness and degree of finish.

4. spool according to claim 1 is characterized in that location linkage structure on the above-mentioned moving plate (2) can be the blind hole S on the moving plate (2) ₁, groove S ₂Or dog.

5. spool according to claim 1 is characterized in that stator (1) and porcelain ring (3) side at above-mentioned spool is provided with a stator packing ring (4) and ring packing ring (5) respectively, and its containing is fixed in left core shell (8) and the right core shell (9) with its shoulder H ₁And H ₂And corresponding Sealing is that left packing ring (6) and the right packing ring (7) of 0 shape round seals, and inserts blind hole S in the moving plate (2) with dialling handle (10) again ₁The general spool of middle composition.

6. according to claim 1 or 4 described spools, the water port R that it is characterized in that the stator packing ring (4) of stator (1) side at above-mentioned spool and left core shell (8) is all three fan shaped borehole central lines and three fan shaped boreholes that area is bigger with stator (1).

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