CN214838595U

CN214838595U - Three-way ball valve

Info

Publication number: CN214838595U
Application number: CN202121270709.5U
Authority: CN
Inventors: 黄亮
Original assignee: Shenzhen Hui'an Tong Technology Co ltd
Current assignee: Shenzhen Hui'an Tong Technology Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-11-23
Anticipated expiration: 2031-06-07

Abstract

The application relates to a three-way ball valve, which comprises a valve body, a ball body and a sealing joint, wherein the valve body comprises an input pipe and an output pipe, the output pipe is vertically connected to the middle part of the input pipe, the input pipe is communicated with the output pipe, and the ball body is rotatably arranged in a cavity at the joint of the input pipe; the sealing joint is fixed at the end parts of the input pipe and the output pipe, the ball body and the sealing joint form a sealing cavity in the cavity of the valve body together, and sealing oil is filled in the sealing cavity. This application has and carries the glue in-process, has reduced the leakage quantity of glue in the valve body intracavity, avoids glue to form a large amount of granular solids and blocks the effect that three-way ball valve made its unable switching input pipeline.

Description

Three-way ball valve

Technical Field

The application relates to the technical field of valves, in particular to a three-way ball valve.

Background

The three-way ball valve in the market is widely used for common working media such as water, solvent, natural gas and the like, has the characteristics of simple structure, convenience in operation and the like, and is often used as a regulating valve, a flow merging valve or a flow dividing valve and the like due to the three channels. But regard as the governing valve with the tee bend ball valve to long-term the using in the glue medium, glue can slowly leak the cavity of valve body in, forms a large amount of graininess or cubic solids, and then blocks spheroidal rotation, causes the unable problem of switching the glue input pipeline of tee bend ball valve.

Aiming at the related technologies, the inventor thinks that the defect that glue leaks into the cavity of the valve body and forms a large amount of granular solids, and the three-way ball valve is extremely easy to block so that the input pipeline cannot be switched exists.

SUMMERY OF THE UTILITY MODEL

In order to solve above-mentioned glue can leak the valve body cavity in, slowly form behind a large amount of graininess or massive solid, very easily block the problem that the tee bend ball valve leads to unable input channel who switches glue, this application provides a tee bend ball valve.

The application provides a three-way ball valve adopts following technical scheme: a three-way ball valve comprises a valve body, a ball body and a sealing joint, wherein the valve body comprises an input pipe and an output pipe, the output pipe is vertically connected to the middle part of the input pipe and communicated with the input pipe, and the ball body is rotatably arranged in a cavity at the joint of the input pipe; the sealing joint is fixed at the end parts of the input pipe and the output pipe, the ball body and the sealing joint form a sealing cavity in the cavity of the valve body together, and sealing oil is filled in the sealing cavity.

By adopting the technical scheme, the sealing cavity formed by the combined action of the sealing oil filling ball body and the sealing joint in the valve body cavity prevents a large amount of leakage of the glue in the sealing cavity, thereby well avoiding the problem that the three-way ball valve cannot be switched to an input pipeline due to the fact that the glue forms a large amount of granular solids in the valve body cavity and is extremely easy to block.

Preferably, the input pipe is provided with a first input port and a second input port, and the output pipe is provided with an output port; the sphere comprises a first state and a second state, the first state is used for communicating the first input port with the output port, and the second state is used for communicating the second input port with the output port.

Through adopting above-mentioned technical scheme, the spheroid has the state that switches on different input ports and delivery outlet, changes spheroidal state, just can reach the effect that the tee bend ball valve switches glue input pipeline.

Preferably, the sealing joint comprises a joint body, wherein an external thread is arranged on the joint body, and the input pipe and the output pipe are both provided with an internal thread matched with the joint body.

By adopting the technical scheme, the connection mode of thread fit is adopted between the connector body and the input pipe or the output pipe of the valve body, and the sealing connector can be conveniently detached and replaced.

Preferably, the sealing joint comprises a sealing ring, a limiting ring is arranged on the edge of the external thread of the joint body, and the sealing ring is sleeved on the joint body and abuts against one side, close to the external thread, of the limiting ring.

Through adopting above-mentioned technical scheme, when sealing joint and input tube or output tube zonulae occludens, the sealing washer can take place deformation, better butt between sealing joint and input tube or output tube, plays sealed effect.

Preferably, the sealing joint further comprises a sealing gasket, and one end of the joint body, which is far away from the limiting ring, is provided with a circulation hole; the sealing gasket is arranged in a hollow mode, the surface of the sealing gasket is in butt fit with the surface of the ball body, and the sealing gasket is fixed at one end, far away from the limiting ring, of the joint body and communicated with the through hole.

Through adopting above-mentioned technical scheme, set up one between joint body and spheroid can with spheroid surface complex sealed pad, prevent to connect the fluid medium in the body at the spheroid rotation in-process, along spheroid surface leakage to sealed chamber, when the spheroid switches on-state, play a good sealed effect.

Preferably, a first via hole and a second via hole are formed in the ball body, and the first via hole is vertically communicated with the second via hole; the first via hole and the input pipe are in the same axis; the second via hole and the output pipe are on the same axis.

Through adopting above-mentioned technical scheme, when the ball valve was in first state or second state, avoided circulation hole on the sealing joint and the first through-hole or the second through-hole position on the ball valve to have the deviation to cause the leakage of glue.

Preferably, the three-way ball valve further comprises a valve rod, the valve rod comprises a rod body, a connecting hole is formed in the input pipe, the rod body is inserted into the connecting hole and is rotatably connected with the valve body, and one end of the rod body is fixedly connected with the ball body.

By adopting the technical scheme, the fluid medium conversion of the three-way ball valve can be controlled more conveniently by adopting a mode that the valve rod is linked with the ball body.

The valve body includes the seal sleeve, the seal sleeve is equipped with the internal thread, the valve rod still includes sealing ring, filler and gland, be provided with the annular groove on the body of rod, the sealing ring sets up in the annular groove, spheroidal one end is kept away from to the body of rod cup joints filler and gland in proper order, be provided with on the gland with seal sleeve complex external screw thread.

Through adopting above-mentioned technical scheme, adopt the double-deck sealed mode of sealing ring and filler, further strengthened the sealed effect of valve rod in the rotation process.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the glue conveying process, the leakage amount of glue in the valve body cavity is reduced, and the problem that the glue forms a large amount of granular solids and blocks the three-way ball valve to cause the three-way ball valve to be incapable of switching the input pipeline is avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is an exploded view of the overall structure of the present embodiment.

Fig. 3 is a schematic transverse sectional view of the overall structure of the present embodiment.

Fig. 4 is a longitudinal sectional view of the entire structure of the present embodiment.

Fig. 5 is an enlarged schematic view of a sectional structure of a portion a in fig. 4.

Fig. 6 is an enlarged schematic view of a sectional structure of a portion B in fig. 4.

Description of reference numerals: 1. a valve body; 11. an input tube; 111. a first input port; 112. a second input port; 113. connecting holes; 12. an output pipe; 121. an output port; 13. sealing the sleeve; 2. a sphere; 21. a first via hole; 22. a second via hole; 3. sealing the joint; 31. a connector body; 311. a limiting ring; 312. a card slot; 313. a flow-through hole; 32. a seal ring; 33. a gasket; 4. sealing the cavity; 5. a valve stem; 51. a rod body; 511. an annular groove; 52. a seal ring; 53. a filler; 54. a gland; 541. and (6) pressing the cap.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a three-way ball valve. Referring to fig. 1 to 4, the three-way ball valve includes a valve body 1, a ball body 2, a sealing joint 3, and a valve stem 5. The valve body 1 is used for conveying fluid medium, the sphere 2 is used for switching the conduction state of the three-way ball valve, the sealing joint 3 is used for preventing glue medium from leaking from the pipeline and preventing medium circulation when the ball valve is switched, and the valve rod 5 is used for linking the sphere 2 to rotate. The valve body 1 is provided with three glue medium flowing ports; the ball body 2 is arranged in the cavity of the valve body 1 and can rotate in the cavity of the valve body 1, and the switching of the input glue medium is controlled by utilizing the rotation of the ball body 2 at different angles; the sealing joint 3 is arranged in a hollow mode and is fixed in the medium flowing port of the valve body 1 in a threaded mode, one end of the sealing joint 3 is abutted to the surface of the ball body 2, and fluid media are prevented from leaking from the sealing joint 3 when the ball body 2 is switched; the valve rod 5 is rotatably connected to the valve body 1, and one end of the valve rod 5 penetrates into the cavity of the valve body 1 and is fixedly connected with the ball body. The ball 2, the sealing joint 3 and the valve rod 5 form a sealing cavity 4 in the cavity of the valve body 1, and sealing oil is filled in the sealing cavity 4 to reduce the leakage of fluid medium into the sealing cavity 4. In the present embodiment, the sealing oil is preferably a high viscosity silicone oil.

Referring to fig. 2 and 3, the valve body 1 includes an inlet pipe 11, an outlet pipe 12, and a sealing sleeve 13. The inlet pipe 11 is used for the inflow of the medium fluid, the outlet pipe 12 is used for the outflow of the medium fluid, and the sealing sleeve 13 is used for sealing the valve rod 5 and the valve body 1. The input pipe 11 and the output pipe 12 are fixedly connected in a T shape and are communicated with each other, and the ball 2 is arranged in a cavity at the joint of the output pipe 11. The input pipe 11 is provided with an input port 111 and an input port 112, and the middle part of the input pipe 11 is also provided with a connecting hole 113 of the vertical input pipe 11 and the vertical output pipe 12; the output pipe 12 has an output port 121. The input pipe 111, the input pipe 112 and the output pipe 113 are all provided with internal threads, and the inner diameter of the input port 111, the inner diameter of the input port 112 and the inner diameter of the output port 121 are all equal in size. The three-way ball valve in the embodiment is a two-inlet one-outlet three-way ball valve.

Referring to fig. 4 to 6, the sealing sleeve 13 is hollow, and an inner thread is provided on an inner wall of the sealing sleeve 13. The sealing sleeve 13 has one end fixed to the inlet pipe 11 and communicating with the connection hole 113 and the other end extending away from the connection hole 113.

Referring to fig. 2 and 3, the ball 2 is provided with a first via hole 21 and a second via hole 22, and both the first via hole 21 and the second via hole 22 are used for conveying a fluid medium. The first through hole 21 and the second through hole 22 are circular holes, the first through hole 21 and the second through hole 22 are arranged at 90 degrees, and the inner diameter of the first through hole 21 is equal to that of the second through hole 22. The first via hole 21, the input port 111, and the input port 112 are on the same axis, and the second via hole 22 and the output port 121 are on the same axis.

Referring to fig. 2, the sealing joint 3 includes a joint body 31, a seal ring 32, and an arc packing 33. The joint body 31 is used for quickly connecting a pipeline and a three-way ball valve, the sealing ring 32 is used for sealing the joint body 31 and the valve body 1, the sealing gasket 33 is used for sealing the joint body 31 and the ball body 2, and the sealing ring 32 and the sealing gasket 33 are both annular.

Referring to fig. 2 and 5, the outer circumferential surface of the joint body 31 is provided with threads to be engaged with the inlet pipe 111, the outlet pipe 112, and the outlet pipe 113; the joint body 31 is further provided with a limiting ring 311, a clamping groove 312 and a circulation hole 313, the limiting ring 311 is arranged on the thread edge of the outer circumferential surface of the joint body 31, the clamping groove 312 is arranged at one end of the joint body 31 close to the ball 2, the clamping groove 312 is a circular groove, and the circulation hole 313 is arranged in the middle of the joint body 31 in the axial direction and is communicated with the clamping groove 312.

Referring to fig. 5, the sealing ring 32 is sleeved on the joint body 31 and is abutted against one side of the limiting ring 311 close to the thread; the sealing gasket 33 is clamped in the clamping groove 312, and the sealing gasket 33 is provided with an arc surface which can be matched with the surface of the ball body 2.

Referring to fig. 3, the inner diameter of the flow hole 313 is equal to the inner diameter of the gasket 33, and is also equal to the inner diameter of the first through hole 21 and the inner diameter of the second through hole 22.

Referring to fig. 2 and 6, the valve stem 5 includes a rod body 51, a sealing ring 52, packing 53, and a gland 54. The annular groove 51 is used for installing a sealing ring 52, the sealing ring 52 is used for isolating sealing oil from a filler 53, the filler 53 is used for rotatably sealing the rod body 51, and the gland 54 is used for fixing the position of the filler 53. The rod body 51 is rotatably connected in the sealing sleeve 13, the packing 53 and the gland 54 are sequentially sleeved on the rod body 51, the packing 53 and the gland 54 are both in a hollow cylindrical shape, the inner wall of the gland 54 is abutted to the outer circumferential surface of the rod body 51, the outer circumferential surface of the gland 54 is provided with an external thread matched with the sealing sleeve 13, the packing 53 can be stably fixed in the sealing sleeve 13, and therefore a rotary sealing effect is achieved on the rod body 15.

Referring to fig. 2 and 6, the rod body 51 is provided with an annular groove 511, and the annular groove 511 is used for placing the sealing ring 52. The inner ring of the sealing ring 52 is sleeved on the rod body 51, the outer ring abuts against the inner wall of the sealing sleeve 13, and when the rod body 51 is inserted into the sealing sleeve 13, the annular groove 511 limits the vertical sliding of the sealing ring 52, so that the relative positions of the sealing ring 52 and the rod body 51 are ensured, and the sealing effect is achieved. The pressing cover 54 is further provided with a pressing cover cap 541, the pressing cover cap 541 is used for controlling the threaded matching relation of the pressing cover 54, and the pressing cover cap 541 is of a regular hexahedral structure.

The implementation principle of the embodiment is as follows: a layer of sealing ring 32 is arranged between the valve body 1 and the sealing joint 3, and the sealing joint 3 is tightly abutted with the input pipe 11 and the output pipe 12 of the valve body 1, so that the sealing joint 3 and the valve body 1 have better sealing effect; a layer of sealing gasket 33 with an arc structure is arranged between the ball body 2 and the sealing joint 3 and can be attached to the surface of the ball body 2, so that the fluid in the sealing joint 3 cannot leak into the cavity of the valve body 1; a double-layer sealing mode of a sealing ring 52 and a packing 53 is adopted between the valve body 1 and the valve rod 5, and the sealing effect of the valve rod 5 in the rotating process is further ensured. Further, a sealing cavity 4 formed by the valve body 1, the ball body 2, the sealing joint 3 and the valve rod 5 is filled with high-viscosity silicone oil, so that the surface of the ball body 2 forms a sealing layer.

When the three-way ball valve is in the first state, the input pipe 11 is communicated with the first through hole 21 on the ball body 2, and the output pipe 12 is communicated with the second through hole 22 on the ball body 2. The glue medium passes through the first output port 111, the first via hole 21, the second via hole 22 and the output port 121 in sequence. The valve stem 5 is slowly rotated and the flow opening 313 in the sealing nipple 3 in the inlet pipe 11 is gradually blocked by the surface of the ball 2. Since the high viscosity silicone oil acts as a sealing layer on the surface of the ball 2, it is avoided that during rotation, glue in the first via hole 21 or the second via hole 22 of the ball 2 leaks. Continuing to rotate the valve rod 5 until the input pipe 11 is communicated with the second through hole 22 on the sphere 2, and at the same time, the output pipe 12 is communicated with the first through hole 21 on the sphere 2; the glue medium sequentially passes through the input port 112, the second via hole 22, the first via hole 21 and the output port 121, and the three-way ball valve is in the second state.

The above embodiments are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a three-way ball valve, includes valve body (1), spheroid (2) and sealing joint (3), its characterized in that: the valve body (1) comprises an input pipe (11) and an output pipe (12), the output pipe (12) is vertically connected to the middle of the input pipe (11) and communicated with the input pipe (11), and the ball body (2) is rotatably arranged in a cavity at the joint of the input pipe (11); the sealing joint (3) is fixed at the end parts of the input pipe (11) and the output pipe (12), the ball body (2) and the sealing joint (3) jointly form a sealing cavity (4) in the cavity of the valve body (1), and the sealing cavity (4) is filled with sealing oil.

2. The three-way ball valve of claim 1, wherein: the input pipe (11) is provided with a first input port (111) and a second input port (112), and the output pipe (12) is provided with an output port (121); the sphere (2) comprises a first state for communicating the first input port (111) with the output port (121) and a second state for communicating the second input port (112) with the output port (121).

3. The three-way ball valve of claim 1, wherein: the sealing joint (3) comprises a joint body (31), an external thread is arranged on the joint body (31), and an internal thread matched with the joint body (31) is arranged on the input pipe (11) and the output pipe (12).

4. The three-way ball valve of claim 3, wherein: the sealing joint (3) comprises a sealing ring (32), a limiting ring (311) is arranged on the edge of the external thread of the joint body (31), and the sealing ring (32) is sleeved on the joint body (31) and abuts against one side, close to the external thread, of the limiting ring (311).

5. The three-way ball valve of claim 4, wherein: the sealing joint (3) further comprises a sealing gasket (33), and a circulation hole (313) is formed in one end, far away from the limiting ring (311), of the joint body (31); the sealing gasket (33) is arranged in a hollow mode, the surface of the sealing gasket (33) is in butt joint with the surface of the ball body (2), and the sealing gasket (33) is fixed at one end, far away from the limiting ring (311), of the joint body (31) and communicated with the circulation hole (313).

6. The three-way ball valve of claim 1, wherein: a first through hole (21) and a second through hole (22) are formed in the ball body (2), and the first through hole (21) is vertically communicated with the second through hole (22); the first through hole (21) is coaxial with the input pipe (11); the second via hole (22) is coaxial with the outlet pipe (12).

7. The three-way ball valve of claim 1, wherein: still include valve rod (5), valve rod (5) are including the body of rod (51), be provided with connecting hole (113) on input tube (11), the body of rod (51) are pegged graft in connecting hole (113) with valve body (1) rotates and is connected, the one end of the body of rod (51) with spheroid (2) fixed connection.

8. The three-way ball valve of claim 7, wherein: valve body (1) is including sealing sleeve (13), sealing sleeve (13) are equipped with the internal thread, valve rod (5) still include sealing ring (52), filler (53) and gland (54), be provided with annular groove (511) on the body of rod (51), sealing ring (52) set up in annular groove (511), the body of rod (51) is kept away from the one end of spheroid (2) and is cup jointed filler (53) and gland (54) in proper order, be provided with on gland (54) with sealing sleeve (13) complex external screw thread.