CN207648248U

CN207648248U - A kind of quick assembling handwheel gate valve

Info

Publication number: CN207648248U
Application number: CN201721765046.8U
Authority: CN
Inventors: 朱晖
Original assignee: Ningbo Amico Copper Valves Manufacturing Co Ltd
Current assignee: Ningbo Amico Copper Valves Manufacturing Co Ltd
Priority date: 2017-12-18
Filing date: 2017-12-18
Publication date: 2018-07-24
Anticipated expiration: 2027-12-18

Abstract

The utility model discloses a kind of quick assembling handwheel gate valves, it is related to a kind of gate valve of the small torque of small dimension, the gate valve is typically mounted on small Room-temperature low-pressure pipeline, and it is used for unlatching and the closure of control pipeline, its structure is made of valve body, flashboard, valve deck, valve rod and handwheel etc., handwheel is mainly used into plastic material single injection-molded, compares the handwheel of conventionally employed sandbox casting and forming mode, has the advantages that easy to process, light-weight, convenient transportation, transportation cost are low etc.；Simultaneously, primary assembly is also realized with valve stem tip in place using the handwheel of this forming method in an interference fit by serration, it is convenient to assemble, and the contact force bigger of serration structure, handwheel can be made to be not easy to skid, performance is reliable, also eliminates the trouble of nut assembly, it is simple in structure, reduce manufacturing cost；In addition, being additionally provided with earflap on handwheel outer circumference surface, facilitate the rotation process of handwheel.

Description

A kind of quick assembling handwheel gate valve

Technical field

The utility model is related to a kind of small torque gate valve structure of small dimension, in particular to a kind of quick assembling handwheel gate valves.

Background technology

The keying of gate valve needs to realize by the transmission of handwheel, at present the handwheel installation side of most of gate valves on the market After formula is all square hole valve rod passed through on handwheel, then with the mode that nut is tightened realize assembly, this assembly method is more Complicated, cooperation low precision, especially existing handwheel mostly use the molding mode of sandbox casting, using square hole and square pole Assembly method is susceptible to the phenomenon that handwheel skids with valve rod in actual use, and handwheel color will also pass through spray Modeling processing can just obtain, and processing is cumbersome also not environmentally；In addition, the handwheel heavier-weight of sandbox casting, transportation cost are higher.

Invention content

There is provided the technical problem to be solved by the utility model is to overcome the deficiencies of existing technologies it is a kind of it is simple in structure, It is light-weight, easy to process, be readily transported, assemble a kind of quick assembling handwheel lock that convenient, performance is reliable, manufacturing cost is low Valve.

The technical issues of the utility model, is achieved through the following technical solutions：

A kind of quick assembling handwheel gate valve, including valve body, flashboard, valve deck, valve rod and handwheel, the handwheel are plastics material Matter single injection-molded, on the outer circumference surface of handwheel be equipped with earflap, between handwheel and valve stem tip be equipped with interference fit and it is real The now serration of primary assembly in place.

The valve stem tip outer circumference surface is equipped with the outer serration of multiple circumference uniform distributions, is equipped in the handwheel Downward opening blind hole, the inner peripheral surface of the blind hole are equipped with the Triangle ID spline of multiple circumference uniform distributions, the inside and outside triangle Spline constitutes interference fit.

The blind hole is made of large-diameter circular post holes, taper hole and the small-diameter circular post holes being sequentially connected, the major diameter Cylindrical hole setting is in blind hole outer end, and the setting of small-diameter circular post holes is in blind hole inner end, Triangle ID spline circumference uniform distribution setting On the inner peripheral surface of small-diameter circular post holes.

The handwheel outer surface is made of cylinder with large diameter, tapering and the small diameter cylinders being sequentially connected, this is big straight The setting of diameter cylinder is arranged in handwheel lower end, small diameter cylinders in handwheel upper end, and the large-diameter circular post holes is correspondingly arranged at greatly In diameter cylinder, taper hole is correspondingly arranged in tapering, small-diameter circular post holes is correspondingly arranged in small diameter cylinders.

The lower face of the either flush of the earflap upper surface and small diameter cylinders, earflap extends to tapering upper surface, The lateral surface of earflap is concordant with the outer circumference surface of cylinder with large diameter.

It sets on the handwheel outer circumference surface there are two earflap, two earflap structures are identical, and are with handwheel axle center The heart is symmetrical arranged.

The T-type screw thread interconnected is equipped between the valve rod lower end and flashboard upper end.

Compared with prior art, handwheel is mainly used plastic material single injection-molded by the utility model, is compared The handwheel of conventionally employed sandbox casting and forming mode has the advantages that easy to process, light-weight, convenient transportation, transportation cost are low etc.； Meanwhile primary dress is also realized with valve stem tip using the handwheel of this forming method in an interference fit by serration With in place, assembly is convenient, and the contact force bigger of serration structure, handwheel can be made to be not easy to skid, performance is reliable, also saves But the trouble of nut assembly, it is simple in structure, reduce manufacturing cost；In addition, earflap is additionally provided on handwheel outer circumference surface, it is convenient The rotation process of handwheel.

Description of the drawings

Fig. 1 is the schematic cross-sectional view of the utility model（Handwheel is detached with valve stem tip）.

Fig. 2 is the stereogram of Fig. 1.

Fig. 3 is the structural schematic diagram that handwheel is assembled to valve stem tip in Fig. 2.

Fig. 4 is the schematic cross-sectional view of handwheel.

Fig. 5 is the outline structural diagram of handwheel.

Specific implementation mode

It will again elaborate to the utility model embodiment by above-mentioned attached drawing below.

As shown in Fig. 1 ~ Fig. 5,1. valve bodies, 2. valve rods, 21. outer serrations, 3. valve decks, 4. handwheels, 41. large-diameter circulars Column, 42. taperings, 43. small diameter cylinders, 44. earflaps, 5. dynamic seals, 6.T types screw thread, 7. flashboards, 8. blind holes, 81. major diameters Cylindrical hole, 82. taper holes, 83. small-diameter circular post holes, 84. Triangle ID splines.

A kind of quick assembling handwheel gate valve is related to a kind of gate valve of the small torque of small dimension, the gate valve as shown in Fig. 1 ~ Fig. 3 It is typically mounted on small Room-temperature low-pressure pipeline, and the unlatching for control pipeline and closure, structure is mainly by valve body 1, lock The compositions such as plate 7, valve deck 3, valve rod 2 and handwheel 4.

1 both ends of valve body are set to the inlet end and an outlet end interconnected, and flashboard 7 is mounted on import and export end Between, valve deck 3 is sealingly mounted at 1 top of valve body in such a way that screw thread screws, and valve rod 2 passes through 5 vertical rotary seal of dynamic seal In valve deck 3, which is two pass O-ring and seal washer etc., and valve body is stretched into and through T-type spiral shell in 2 lower end of valve rod Line 6 is attached with 7 upper end of flashboard, and 2 upper end of valve rod stretches out valve deck 3 and installs handwheel 4, therefore the rotation of handwheel can be through 2 band of valve rod Dynamic flashboard 7 makees lifting moving in valve body 1, is also achieved that the water flowing between import and export end opens and closes.

The handwheel 4 is plastic material single injection-molded, 4 shape of handwheel according to shown in Fig. 5, outer surface be by according to Secondary connected cylinder with large diameter 41, tapering 42 and small diameter cylinders 43 are constituted, which is arranged in 4 lower end of handwheel, Small diameter cylinders 43 are arranged in 4 upper end of handwheel.

Meanwhile earflap 44 there are two being set on 4 outer circumference surface of handwheel, two earflap structures are identical, and are with 4 axle center of handwheel Center symmetric setting, the either flush of the upper surface of each earflap 44 with small diameter cylinders 43, the lower face of each earflap 44 42 upper surface of tapering is all extended to, the lateral surface of each earflap 44 is concordant with the outer circumference surface of cylinder with large diameter 41.The two 44 structure design of earflap is simple, has not only facilitated the rotation process of handwheel 4, but also greatly reduces production cost.

It is equipped with downward opening blind hole 8 in the handwheel 4, the blind hole is according to shown in Fig. 5, being big straight by what is be sequentially connected Diameter cylindrical hole 81, taper hole 82 and small-diameter circular post holes 83 are constituted, which is arranged in 8 outer end of blind hole, minor diameter Cylindrical hole 83 is arranged in 8 inner end of blind hole；Also, large-diameter circular post holes 81 is correspondingly arranged in cylinder with large diameter 41, taper hole 82 is right Should be arranged in the tapering 42, small-diameter circular post holes 83 is correspondingly arranged in small diameter cylinders 43, in small-diameter circular post holes 83 The Triangle ID spline 84 of multiple circumference uniform distributions is additionally provided on periphery, and taper hole 82 can play handwheel 4 mounted on 2 top of valve rod Guiding role.

According to above-mentioned hand wheel structure, the outer bougainvillea of multiple circumference uniform distributions is accordingly equipped on 2 top outer circumference surface of valve rod Key 21；Therefore, handwheel 4 constitutes interference by the outer serration 21 of Triangle ID spline 84 and 2 top of valve rod in blind hole 8 and matches It closes, in place to the primary assembly of realization between the two, and uses the fit structure of serration, assembly is convenient, and contact force is more Greatly, handwheel 4 is not easy to skid, and performance is relatively reliable.

The above is only specific embodiment of the utility model, it should be appreciated by those skilled in the art that any and reality The equivalent structure design of example is applied, should be included within the scope of protection of this utility model.

Claims

1. a kind of quick assembling handwheel gate valve, including valve body（1）, flashboard（7）, valve deck（3）, valve rod（2）And handwheel（4）, special Sign is the handwheel（4）For plastic material single injection-molded, in handwheel（4）Outer circumference surface be equipped with earflap（44）, Handwheel（4）With valve rod（2）It is equipped between top and is interference fitted and realizes the serration of primary assembly in place.

2. a kind of quick assembling handwheel gate valve according to claim 1, it is characterised in that the valve rod（2）Top outer circle Circumferential surface is equipped with the outer serration of multiple circumference uniform distributions（21）, the handwheel（4）It is interior to be equipped with downward opening blind hole（8）, The inner peripheral surface of the blind hole is equipped with the Triangle ID spline of multiple circumference uniform distributions（84）, the inside and outside serration constituted It is full of cooperation.

3. a kind of quick assembling handwheel gate valve according to claim 2, it is characterised in that the blind hole（8）It is by successively Connected large-diameter circular post holes（81）, taper hole（82）With small-diameter circular post holes（83）It constitutes, the large-diameter circular post holes（81）Setting In blind hole（8）Outer end, small-diameter circular post holes（83）It is arranged in blind hole（8）Inner end, the Triangle ID spline（84）Circumference uniform distribution It is arranged in small-diameter circular post holes（83）Inner peripheral surface on.

4. a kind of quick assembling handwheel gate valve according to claim 3, it is characterised in that the handwheel（4）Outer surface is By the cylinder with large diameter being sequentially connected（41）, tapering（42）And small diameter cylinders（43）It constitutes, the cylinder with large diameter（41）Setting In handwheel（4）Lower end, small diameter cylinders（43）It is arranged in handwheel（4）Upper end, the large-diameter circular post holes（81）It is correspondingly arranged In cylinder with large diameter（41）Interior, taper hole（82）It is correspondingly arranged at tapering（42）Interior, small-diameter circular post holes（83）It is correspondingly arranged at small Diameter cylinder（43）It is interior.

5. a kind of quick assembling handwheel gate valve according to claim 4, it is characterised in that the earflap（44）Upper surface With small diameter cylinders（43）Either flush, earflap（44）Lower face extend to tapering（42）Upper surface, earflap（44）It is outer Side and cylinder with large diameter（41）Outer circumference surface it is concordant.

6. a kind of quick assembling handwheel gate valve according to claim 1, it is characterised in that the handwheel（4）Outer circumference surface On set there are two earflap（44）, two earflap structures are identical, and with handwheel（4）It is symmetrical arranged centered on axle center.

7. a kind of quick assembling handwheel gate valve according to claim 1, it is characterised in that the valve rod（2）Lower end and lock Plate（7）The T-type screw thread interconnected is equipped between upper end（6）.