CN216009647U

CN216009647U - High-pressure pneumatic three-way ball valve

Info

Publication number: CN216009647U
Application number: CN202122429405.5U
Authority: CN
Inventors: 钱勇; 吴志军; 王飞; 何锐; 吴星星; 吴俐玲; 黄皓
Original assignee: Anhui Tunxi High Pressure Valve Co ltd
Current assignee: Anhui Tunxi High Pressure Valve Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-03-11
Anticipated expiration: 2031-10-09

Abstract

The utility model discloses a high-pressure pneumatic three-way ball valve, which relates to a three-way valve, including the valve body of three horizontal medium channel of internal setting, be provided with the spheroid between the inner of three horizontal medium channel, set up three level and run through its self circulation passageway in the spheroid, the top of spheroid is seted up jaggedly, the cylindrical installation passageway that runs through the valve body and thin from top to bottom is seted up to the top of spheroid, be provided with the same and upper and lower end internal diameter of installation passageway in the installation passageway and the different valve rod of upper and lower end height of upper and lower end, the bottom of valve rod is equipped with the arch, the top of valve rod sets up in the installation passageway and its top is connected with the external rod that the top set up outside the valve body and be connected with the pneumatic device installed on the valve body, all be provided with the valve seat in the inner of each horizontal medium channel, the internal threaded connection of thick portion of each horizontal medium channel has the inner of external pipe; the utility model discloses can simple structure, simple to operate to be convenient for connect external pipeline.

Description

High-pressure pneumatic three-way ball valve

Technical Field

The utility model relates to a valve especially relates to a three-way valve.

Background

The high-pressure ball valve is a valve in which an opening and closing part (a ball) is driven by a valve rod and rotates around the axis of the valve rod. The valve is used for hydraulic mechanical equipment, hydraulic switches, natural gas and the like, and is a main valve.

Most of the existing high-pressure ball valves are in a straight-through type, when multiple pipelines are required to be switched, a plurality of straight-through ball valves are required to be installed to control the pipelines, and pipeline leakage points are increased. The installation space is limited; secondly, V type filler is mostly adopted in current high pressure ball valve seal, and the hole of installation filler is generally processed deeply, will increase the valve volume by necessity, greatly increased manufacturing cost. Aiming at the defects of the prior art, the pneumatic three-way high-pressure ball valve is simple in structure and reliable in sealing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a pneumatic tee bend ball valve of high pressure to solve the technical problem that ball valve structure is complicated among the prior art.

The utility model discloses a realize through following technical scheme:

a high-pressure pneumatic three-way ball valve comprises a valve body, three horizontal medium channels form a horizontal T-shaped structure, each horizontal medium channel is a cylindrical cavity with a thick outer end and a thin inner end, a ball body is arranged between the inner ends of the three horizontal medium channels and is placed between the three horizontal medium channels through one horizontal medium channel, three horizontal circulating channels penetrating through the ball body are arranged in the ball body and form the horizontal T-shaped structure, a notch is formed in the top end of the ball body, a cylindrical mounting channel penetrating through the valve body and with a thin upper end and a thick lower end is arranged above the ball body, the inner diameter of the bottom end of the mounting channel is smaller than the outer diameter of the ball body, a valve rod is arranged in the mounting channel, the outer diameter of the upper end and the lower end of the mounting channel is the same as the inner diameter of the upper end and the lower end of the mounting channel, the height of the upper end and the lower end of the mounting channel is different from that of the horizontal medium channel is placed in the mounting channel, the bottom of the valve rod is provided with a bulge which is integrated with the valve rod and is inserted into the gap, the top end of the valve rod is arranged in the installation channel, the top end of the valve rod is connected with an external connecting rod, the top end of the external connecting rod is arranged outside the valve body and is connected with a pneumatic device arranged on the valve body, a valve seat with the same outer diameter as the inner diameter of the valve seat and the same inner diameter as the inner diameter of the circulation channel is arranged in each horizontal medium channel, the ball body is erected and clamped by the three valve seats, the side wall, facing the ball body, of each valve seat is an arc surface capable of being sealed by being attached to the outer wall of the ball body, the side wall, deviating from the ball body, of each valve seat is a vertical wall, the inner end of each horizontal medium channel, which is internally connected with an external connecting pipe in a threaded mode, the inner end of each external connecting pipe tightly abuts against the corresponding valve seat, and the outer end of each valve seat is arranged in the thicker part of the corresponding horizontal medium channel.

Furthermore, an O-shaped sealing ring is embedded in the side wall of the thin part of the installation channel, and a thrust gasket is sleeved at the bottom end of the thin part of the upper part of the valve rod.

Furthermore, the outer wall of the outer connecting pipe is also sleeved with a screwing nut which is integrated with the outer wall of the outer connecting pipe and the outer diameter of which is larger than the outer diameter of the inner end of the outer connecting pipe.

Furthermore, each annular groove with the outer diameter larger than the inner diameter of the outer end of the horizontal medium channel is formed in the side wall of the valve body where the outer edge of the horizontal medium channel is located, an annular sealing ring is arranged in each annular groove, and the corresponding screwing nut tightly pushes the corresponding annular sealing ring when the external pipe is in threaded connection with the corresponding horizontal medium channel and tightly pushes the corresponding valve seat.

Furthermore, every the outer pipe outside still is provided with the welded pipe, every the cover is equipped with rather than lock nut as an organic whole on the tip of welded pipe orientation outer pipe, every lock nut orientation corresponds the tip of outer pipe and corresponds outer pipe outer wall threaded connection, and every the twisted direction of welded pipe is opposite with the twisted direction of corresponding outer pipe.

Furthermore, a secondary sealing ring is arranged between the external connecting pipe and the corresponding welding pipe.

Furthermore, the inner diameter of the flow channel, the inner diameter of the valve seat, the inner diameter of the external connecting pipe and the inner diameter of the welding pipe are the same and are coaxially distributed.

Furthermore, a communicating channel with the same inner diameter as the circulating channel is replaced by the other two vertical horizontal medium channels in the three horizontal medium channels, a valve seat and an external connecting pipe are not arranged in the communicating channel, and a locking nut on the welding pipe is directly in threaded connection with the outer end of the communicating channel corresponding to the valve body.

Furthermore, the locking nut and the welding pipe are fixedly connected and replaced by the locking nut and the welding pipe which can be mutually separated, the locking nut is partially sleeved on the outer side of the inner end of the corresponding welding pipe, the outer wall of the part, located in the locking nut, of the welding pipe is of a cylindrical step-shaped structure with the inner part thick and the outer part thin, and an annular pressing block used for pressing the thicker part of the inner end of the welding pipe is arranged on the inner wall, away from the end part of the valve body, of the locking nut.

Furthermore, the locking nut and the screwing nut corresponding to the horizontal medium channel are not contacted with each other after being screwed tightly.

Compared with the prior art, the utility model has the following advantages:

the utility model provides a pair of pneumatic tee bend ball valve of high pressure, valve body adopt to forge and make and simple structure, have avoided the complicated defect of traditional valve body structure, simultaneously through the size of restriction spheroid and valve rod, can effectively install equipment, have reduced the installation degree of difficulty of equipment, through setting up outer pipe and welded pipe for equipment can be convenient connect outside pipeline, improved equipment fixing efficiency.

Drawings

Fig. 1 is a front sectional view of an internal structure of a high-pressure pneumatic three-way ball valve provided in embodiment 1;

fig. 2 is a top sectional view of the internal structure of a high-pressure pneumatic three-way ball valve provided in embodiment 2.

In the figure: 1. a valve body; 2. a horizontal media channel; 3. a sphere; 4. a flow-through channel; 5. a notch; 6. a valve stem; 7. a protrusion; 8. an extension rod; 9. a pneumatic device; 10. a valve seat; 11. an external connection pipe; 12. an O-shaped sealing ring; 13. a thrust washer; 14. screwing the nut; 15. an annular seal ring; 16. welding the pipe; 17. locking the nut; 18. a secondary sealing ring; 19. a communication channel; 20. and (4) an annular pressing block.

Detailed Description

The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, the present embodiment provides a high-pressure pneumatic three-way ball valve, which includes a valve body 1 having three horizontal medium channels 2 therein, three horizontal medium channels 2 penetrate through the valve body 1, the valve body 1 is integrally forged, the three horizontal medium channels 2 are turned into the valve body, the three horizontal medium channels 2 are cylindrical cavities with thick outer parts and thin inner parts, the three horizontal medium channels 2 form a horizontal T-shaped structure, the inner ends of the three horizontal medium channels 2 are mutually communicated, a sphere 3 is arranged among the three horizontal medium channels 2, the size of the sphere 3 is satisfied that the sphere can be sent into a space among the three horizontal medium channels 2 from the outer end of one horizontal medium channel 2, and simultaneously, the medium circulation and the guiding are facilitated, three horizontal flow channels 4 penetrating through the sphere 3 are formed in the sphere, and the inner ends of the three flow channels 4 are communicated with each other to form a horizontal T-shaped structure; in order to conveniently erect and clamp the sphere 3, in the embodiment, the inner ends of the three horizontal medium channels 2 are respectively and fixedly provided with a valve seat 10, the inner diameter of each valve seat 10 is the same as that of the circulation channel 4, and the outer diameter of each valve seat 10 is the same as that of the inner end of the horizontal medium channel 2, so that the valve seats 10 are convenient to place, the side wall of each valve seat 10, which faces the sphere 3, is a cambered surface which can be attached and sealed with the sphere 3, and the side wall, which is far away from the sphere 3, is a vertical surface, and after the inner walls of the three valve seats 10 are attached to the sphere 3 and fix the position of the sphere 3, the sphere 3 can be clamped and limited; in order to fix the position of the valve seat 10 conveniently, an external pipe 11 is connected with the thicker part of each horizontal medium channel 2 in a threaded manner, the outer end of the external pipe 11 is arranged outside the valve body 1, and the inner end of the external pipe 11 can tightly push the corresponding valve seat 10 when the external pipe 11 is connected with the corresponding horizontal medium channel 2 in a threaded manner, so that the corresponding valve seat 10 is attached to the ball body 3 for sealing, and the purposes of sealing the gap between the valve seat 10 and the ball body 3 and limiting the ball body 3 are achieved; in order to facilitate the rotation of the ball 3 to achieve the purpose of changing the medium flow direction, in this embodiment, a mounting channel with a thin upper part and a thick lower part is firstly arranged on the valve body 1 above the ball 3, a valve rod 6 with the same inner diameter and different height at the upper end and the lower end is arranged in the mounting channel, the inner diameter of the thicker part at the bottom end of the mounting channel is smaller than that of the ball 3, the height of the valve rod 6 satisfies that the valve rod 6 can be placed into the mounting channel after being placed into the mounting channel from the outer end of a horizontal medium channel 2, the height of the thinner part at the upper part and the height of the thicker part at the lower part of the valve rod 6 are respectively smaller than that of the thinner part at the upper part and the height of the thicker part at the lower part of the mounting channel, thereby facilitating the installation of the valve rod 6, meanwhile, in order to facilitate the control of the ball 3, a gap 5 is firstly arranged at the top of the ball 3, a bulge 7 with the top end connected with the bottom of the valve rod 6 and integrated with the valve rod 6 is arranged in the gap 5, thereby protruding 7 inserts accessible rotation valve rod 6 in the breach 5 and drives spheroid 3 and rotate and reach and turn to the purpose, simultaneously for the ease of control valve rod 6, is connected with the top at valve rod 6 and sets up outside valve body 1 and be connected with external pole 8 of being connected with the pneumatic means 9 of installing on valve body 1, thereby can drive spheroid 3 through external pole 8 and valve rod 6 and rotate through outside pneumatic means 9, thereby be convenient for control medium flow direction.

In particular, in order to facilitate sealing of the gap between the valve stem 6 and the valve body 1, in the present embodiment, a thrust washer 13 is fitted around the bottom of the upper thin portion of the valve stem 6, and an O-ring 12 is fitted on the side wall of the upper thin portion of the mounting passage for sealing.

Specifically, in order to facilitate the installation of the outer joint pipe 11, a fastening nut 14 is integrally provided on an outer wall of the outer joint pipe 11, so that the outer joint pipe 11 can be fastened by operating the fastening nut 14.

Particularly, for further sealing, in this embodiment, first, an annular groove having an outer diameter larger than the inner diameter of the outer end of each horizontal medium channel 2 is formed on the sidewall of the valve body 1 where the outer edge of each horizontal medium channel 2 is located, and an inner edge of the annular groove may also coincide with the outer edge of the corresponding horizontal medium channel 2, and may be set according to actual requirements, and meanwhile, an annular seal ring 15 is disposed in the annular groove, and when the inner end of the outer connecting pipe 11 tightly abuts against the corresponding valve seat 10, the screwing nut 14 tightly abuts against the corresponding annular seal ring 15.

In particular, in order to facilitate the sealing of the external pipe 11 to connect an external pipeline, in this embodiment, each external pipe 11 is further provided with a welding pipe 16 outside, each welding pipe 16 is provided with a locking nut 17 integrated with the welding pipe 16 towards the external connection of the end portion corresponding to the external pipe 11, each locking nut 17 is respectively sleeved on the outer end corresponding to the external pipe 11 and is in threaded connection with the welding pipe, in order to facilitate the sealing, a secondary sealing ring 18 is further provided between the outer end of the external pipe 11 and the corresponding welding pipe 16, in order to facilitate the installation, an annular groove is also provided on the side wall of the outer end of each external pipe 11, and the secondary sealing ring 18 is provided in the annular groove, and the inner edge of the annular groove is also communicated with the outer edge of the inner cavity of the external pipe 11, so as to facilitate the processing.

In particular, in order to facilitate the medium circulation and reduce the circulation resistance, in the embodiment, the inner diameter of the circulation channel 4, the inner diameter of the valve seat 10, the inner diameter of the external connecting pipe 11 and the inner diameter of the welding pipe 16 are the same and are distributed coaxially; meanwhile, in order to facilitate mounting of the apparatus, in the present embodiment, the screwing direction of each welding pipe 16 is opposite to the screwing direction of the corresponding extension pipe 11, thereby facilitating mounting.

Equipment installation: firstly, an O-shaped sealing ring 12 is embedded in an installation channel, then a thrust gasket 13 is sleeved on a valve rod 6, the formed whole body is placed between three horizontal medium channels 2 from the outer end of one horizontal medium channel 2 inwards, then the ball body 3 is placed between the three horizontal medium channels 2 from the one horizontal medium channel 2, a bulge 7 is inserted into a gap 5 when the ball body 3 is placed, then a valve seat 10 is placed in each horizontal medium channel 2 and is attached to the ball body 3, then an extension rod 8 is installed at the top of the valve rod 6, an external connecting pipe 11 is connected with a pneumatic device 9 installed on a valve body 1, so that the ball body 3 can be driven to rotate, then an annular sealing ring 15 is placed in an annular groove on the valve body 1, a screwing nut 14 is used for enabling the external connecting pipe 11 to extrude the valve seat 10 and the annular sealing ring 15, then a secondary sealing ring 18 is placed in an annular groove on the outer end of the external connecting pipe 11, and then the installation of a welding pipe 16 is completed through a locking nut 17 The locking nut 17 and the screwing nut 14 corresponding to the horizontal medium channel 2 are not contacted with each other after being screwed.

Example 2

Referring to fig. 2, the high-pressure pneumatic three-way ball valve provided by this embodiment has a structure substantially identical to that of embodiment 1, except that a communication channel 19 having the same inner diameter as that of the flow channel 4 is substituted for two horizontal medium channels 2 perpendicular to the other horizontal medium channels 2 among the three horizontal medium channels 2, the communication channel 19 is not provided with the valve seat 10 and the external connection pipe 11, the lock nut 17 on the welding pipe 16 is directly screwed with the valve body 1 corresponding to the outer end of the communication channel 19, secondly, the arrangement of the fixed connection between the locking nut 17 and the welding pipe 16 is replaced by the mutual separation between the locking nut 17 and the welding pipe 16, the locking nut 17 is partially sleeved on the outer side of the inner end of the corresponding welding pipe 16, the outer wall of the part, located in the locking nut 17, of the welding pipe 16 is of a cylindrical step-shaped structure with the inner thickness and the outer thickness, and the inner wall, away from the end part of the valve body 1, of the locking nut 17 is provided with an annular pressing block 20 for pressing the thicker part of the inner end of the welding pipe 16.

Through the arrangement, on one hand, the manufacturing cost of the device is reduced, and on the other hand, the external welding pipe 16 is convenient to connect.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A high-pressure pneumatic three-way ball valve comprises a valve body (1) internally provided with three horizontal medium channels (2), and is characterized in that the three horizontal medium channels (2) form a horizontal T-shaped structure, each horizontal medium channel (2) is a cylindrical cavity with a thick outer part and a thin inner part, a ball body (3) is arranged between the inner ends of the three horizontal medium channels (2), the ball body (3) is placed between the three horizontal medium channels (2) through one horizontal medium channel (2), three horizontal circulation channels (4) penetrating through the ball body (3) are arranged in the ball body (3), the three circulation channels (4) also form the horizontal T-shaped structure, the top end of the ball body (3) is provided with a notch (5), a cylindrical installation channel which penetrates through the valve body (1) and is thin at the top and thick at the bottom is arranged above the ball body (3), the inner diameter of the bottom end of the installation channel is smaller than the outer diameter of the ball body (3), a valve rod (6) with the same outer diameter of the upper end and the lower end as the inner diameter of the upper end and the lower end of the installation channel and different height of the upper end and the lower end is arranged in the installation channel, a horizontal medium channel (2) is used for placing the valve rod (6) into the installation channel, the bottom of the valve rod (6) is provided with a bulge (7) which is integrated with the valve rod and is inserted into the gap (5), the top end of the valve rod (6) is arranged in the installation channel, the top end of the valve rod is connected with an external connecting rod (8) which is arranged outside the valve body (1) and is connected with a pneumatic device (9) arranged on the valve body (1), a valve seat (10) with the same outer diameter as the inner diameter of the valve rod and the inner diameter as the inner diameter of the circulation channel (4) is arranged in each horizontal medium channel (2), and the ball body (3) is erected and clamped by the three valve seats (10), the side wall of each valve seat (10) facing the sphere (3) is a cambered surface capable of being sealed by being attached to the outer wall of the sphere (3) and the side wall of each valve seat facing away from the sphere (3) is a vertical wall, the inner end of an external connecting pipe (11) is connected into the thicker part of each horizontal medium channel (2) in a threaded mode, the inner end of the external connecting pipe (11) tightly props against the corresponding valve seat (10), and the outer end part of each valve seat (10) is arranged in the thicker part of the corresponding horizontal medium channel (2).

2. A high-pressure pneumatic three-way ball valve according to claim 1, wherein an O-ring (12) is embedded in the side wall of the thin part of the installation channel, and a thrust washer (13) is sleeved at the bottom end of the thin part of the upper part of the valve rod (6).

3. The high-pressure pneumatic three-way ball valve according to claim 2, wherein the outer wall of the outer connecting pipe (11) is further sleeved with a screwing nut (14) which is integrated with the outer wall and has an outer diameter larger than that of the inner end of the outer connecting pipe.

4. The high-pressure pneumatic three-way ball valve according to claim 3, wherein an annular groove with an outer diameter larger than the inner diameter of the outer end of each horizontal medium channel (2) is formed in the side wall of the valve body (1) where the outer edge of each horizontal medium channel (2) is located, an annular sealing ring (15) is arranged in each annular groove, and when the outer connecting pipe (11) is in threaded connection with the corresponding horizontal medium channel (2) and tightly props against the corresponding valve seat (10), the corresponding screwing nut (14) also tightly props against the corresponding annular sealing ring (15).

5. The high-pressure pneumatic three-way ball valve according to claim 4, wherein a welding pipe (16) is further arranged outside each external connecting pipe (11), a locking nut (17) integrated with each welding pipe (16) is sleeved on the end part, facing the external connecting pipe (11), of each welding pipe (16), the end part, facing the corresponding external connecting pipe (11), of each locking nut (17) is in threaded connection with the outer wall of the corresponding external connecting pipe (11), and the screwing direction of each welding pipe (16) is opposite to the screwing direction of the corresponding external connecting pipe (11).

6. A high-pressure pneumatic three-way ball valve according to claim 5, characterized in that a secondary sealing ring (18) is further arranged between the external pipe (11) and the corresponding welded pipe (16).

7. A high-pressure pneumatic three-way ball valve according to claim 6, wherein the inner diameter of the flow channel (4), the inner diameter of the valve seat (10), the inner diameter of the extension tube (11) and the inner diameter of the welded tube (16) are the same and are coaxially distributed.

8. The high-pressure pneumatic three-way ball valve is characterized in that the horizontal medium channel (2) perpendicular to the other two horizontal medium channels (2) in the three horizontal medium channels (2) is replaced by a communication channel (19) with the inner diameter identical to that of the circulating channel (4), a valve seat (10) and an external connecting pipe (11) are not arranged in the communication channel (19), and a locking nut (17) on a welding pipe (16) is directly in threaded connection with the outer end of the communication channel (19) corresponding to the valve body (1).

9. The high-pressure pneumatic three-way ball valve according to claim 8, characterized in that the locking nut (17) and the welding pipe (16) are fixedly connected and replaced by being separated from each other, the locking nut (17) is partially sleeved outside the inner end of the corresponding welding pipe (16), the outer wall of the welding pipe (16) in the locking nut (17) is of a cylindrical step-shaped structure with a thick inner part and a thin outer part, and the inner wall of the locking nut (17) away from the end of the valve body (1) is provided with an annular pressing block (20) for pressing the thicker part of the inner end of the welding pipe (16).

10. The high-pressure pneumatic three-way ball valve according to claim 9, wherein the locking nut (17) and the tightening nut (14) corresponding to the horizontal medium channel (2) are not in contact with each other after being tightened.