CN2784692Y

CN2784692Y - Three-way ball valve

Info

Publication number: CN2784692Y
Application number: CN 200420110718
Authority: CN
Inventors: 章仉香; 陈志清
Original assignee: NINGBO ZHIQING INDUSTRIAL Co Ltd
Current assignee: NINGBO ZHIQING INDUSTRIAL Co Ltd
Priority date: 2004-11-25
Filing date: 2004-11-25
Publication date: 2006-05-31
Anticipated expiration: 2014-11-25

Abstract

The utility model discloses a three-way ball valve which comprises a valve body, a valve cover at the end B, and a spherical valve core provided with a T-shaped through hole structure, wherein an axial side opening of the valve body is screwed with the valve cover at the end B, and both sides of the spherical valve core are oppositely provided with sealing seats which are respectively arranged in the valve body and the valve cover at the end B; the surface of the outer circle of an opening boss on the valve body is provided with a position limiting convex lug, and a valve rod sheathed and embedded with a colloid sealing ring is arranged in the boss; the lower end of the valve rod is connected with a groove of the spherical valve core in a tight fitting way, and the upper end is connected with a handle fixed a nut; the handle is provided with two position limiting hanging feet. The utility model is characterized in that a vertical axial side opening of the valve body is screwed with a valve cover at the end C, and a hollow cavity of a groove arranged on the bottom end thereof, which is opposite to the spherical valve core, is provided with a sealing ring. When the three-way ball valve of the utility model is used, the cases that an interface at one side of the axial direction of the valve is a fluid medium inlet end, and an interface of the other side of the axial direction of the valve is an outlet end used for switching flow direction can be realized; thus, the three-way ball valve can be suitable in occasions that the three-way ball valve of the prior at can not meet the requirement of the use occasions.

Description

Tee ball valve

Technical field

The utility model relates to the ball valve of using in the pipeline, especially a kind of ball valve of three-port structure.

Background technique

Tee ball valve is used to cut off, change the effect that flowing medium flows in pipe-line system, is widely used in industry and the civilian pipeline.The existing tee ball valve that generally uses is by valve body, valve gap, valve rod, formations such as spherical valve core, disclosed as China Patent No.: 00207592.X is this tee ball valve just, because the relation of its internal structure, the entrance point that it is flowing medium that this product only allows the axial vertical side interface of valve, axial two side interfaces are the switch current direction outlet end, in as installed is used, often can't satisfy the requirement of pipeline trend, the occasion that the special mounting status requirement is particularly arranged at some, if adopt the increase pipe joint to meet the demands, then cost increases, and the rate of fault raising that the pipeline generation is leaked in can causing using after the increase of pipeline tie point, increases the cost of maintenance.

The model utility content

Technical problem to be solved in the utility model is the deficiency that exists at prior art, and provide a kind of flowing medium that can make to advance from an axial side interface of valve, and the axial opposite side interface of valve and axial vertical side interface are the tee ball valve of the outlet end of switch current direction.

The technical scheme in the invention for solving the above technical problem is: a kind of tee ball valve, comprise valve body, the B end valve that is spirally connected with valve body axial side opening covers, a spherical valve core that has "T"-shaped through-hole structure, its both sides are relatively set with sealing seat and are located in respectively in valve body and the B end valve lid, opening boss outer round surface at valve body is provided with spacing lug, the valve rod that cover is embedded with the colloid seal ring is housed in the boss, its lower end is connected with the fluting close-fitting of spherical valve core, the upper end is connected with by the fixing handle of nut, handle is provided with two spacing hanging feets, it is characterized in that: described valve body vertical axial side opening is bolted with C end valve lid, in the groove of its bottom setting cavity relative with spherical valve core seal ring is housed.

Tee ball valve of the present utility model passes through the improvement design to the valve body of prior art, the structural design that the vertical axial side interface of existing valve and valve body are linked as integral body changes being spirally connected of split into and is connected design, between interface bottom and spherical valve core, be provided with seal ring, thereby blocked vertical mouthful of spherical valve core through the valve pocket space leakage path to the C end interface, the entrance point that an axial side interface of having realized valve is a flowing medium, and the axial opposite side interface of valve and axial vertical side interface are the outlet end of switch current direction, make this tee ball valve can be applicable to that the tee ball valve of prior art can't satisfy the occasion that use occasion requires.

Description of drawings

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Fig. 1 is the tee ball valve structural representation of outside thread interface for the utility model three end interfaces.

Fig. 2 is the plan view of Fig. 1.

Fig. 3 is in A to advancing the D-D of C when going out to be communicated with to sectional view for Fig. 1 at spherical valve core.

Fig. 4 is in A to advancing the D-D of B when going out to be communicated with to sectional view for Fig. 1 at spherical valve core.

Fig. 5 is the structural representation of spherical valve core.

Fig. 6 is that the E-E of Fig. 5 is to sectional view.

Fig. 7 is that the F-F of Fig. 5 is to sectional view.

Fig. 8 is the tee ball valve structural representation of internal thread interface for the utility model three end interfaces.

Embodiment

As Fig. 1～shown in Figure 4, tee ball valve includes the threeway inlet/outlet A end of three threaded couplings, valve body 4, B end valve lid 1 and the C end valve lid 11 that B holds, C holds, B end valve lid 1 is spirally connected with valve body 4 axial side openings, C end valve lid 11 is spirally connected with the axial vertical side opening of valve body 4, and their scyewed joint place adopts the sealing of coated anaerobic adhesive.In the inner chamber of valve body 4, be equipped with as Fig. 5～spherical valve core that has "T"-shaped through-hole structure 2 shown in Figure 7, spherical valve core 2 both sides are relatively set with sealing seat 3, cooperate the formation sealing pair with spheroid, two sealing seats 3 are located in respectively in valve body 4 and the B end valve lid 1, cover in the relative cavity of groove that 11 bottoms are provided with also setting at spherical valve core 2 and C end valve O V-shaped ring 13 is housed.In the opening boss of valve body 4, valve rod 5 is housed, and two O shape colloid seal rings, 8 sealings of setting-in in the groove that is provided with by valve rod 5 middle parts, valve rod 5 lower ends are protruded the end and are connected with transmitting torque with the fluting close-fitting of spherical valve core 2 perpendicular to endoporus, upper end side's tenon 12 is connected with handle 10 square holes, and it is fixing by nut 9, on handle 10, be provided with the spacing hanging feet 7 that two bi-side become the bending downward vertically of 90 ° of angles arrangements, its spacing hanging feet also and then rotates when handle rotates, to by the spacing lug (6) that is provided with on the opening boss outer round surface of valve body 4 when spacing, ball valve will be in a certain work condition state.For example when handle is positioned at solid line position shown in Figure 2, the position of spheroid in valve pocket as shown in Figure 3, vertical axial A, C two interface end communicate, the B end is closed; When handle rotates counterclockwise 90 ° when being positioned at dotted line position shown in Figure 2, the position of spheroid in valve pocket as shown in Figure 4, axially A, B two ends communicate, the C end closes.

The effect of above-mentioned described O-ring seals 13 is: be at valve that axial A, B two ends communicate, during C end closed condition, the vertical mouth of blocking-up spherical valve core is the path to the C end interface through the body cavity space, thereby make the C end realize reliably closing, reach the effect of commutation switching function.

Above Fig. 1～Figure 4 shows that three end interfaces are tee ball valves of outside thread interface Figure 8 shows that three end interfaces are tee ball valves of internal thread interface, and their internal structure is identical, so also belong to protection domain of the present utility model.

Claims

1. tee ball valve, comprise valve body (4), the B end valve that is spirally connected with valve body (4) axial side opening covers (1), a spherical valve core (2) that has "T"-shaped through-hole structure, its both sides are relatively set with sealing seat (3) and are located in respectively in valve body (4) and the B end valve lid (1), opening boss outer round surface at valve body (4) is provided with spacing lug (6), the valve rod (5) that cover is embedded with colloid seal ring (8) is housed in the boss, its lower end is connected with the fluting close-fitting of spherical valve core (2), the upper end is connected with by the fixing handle (10) of nut (9), handle is provided with two spacing hanging feets (7), it is characterized in that: described valve body (4) vertical axial side opening is bolted with C end valve lid (11), in the groove of its bottom setting cavity relative with spherical valve core (2) seal ring (13) is housed.