阅读说明：本技术 一种四通球阀 (Four-way ball valve ) 是由 苏凤霞 邵立坤 其他发明人请求不公开姓名 于 2020-04-30 设计创作，主要内容包括：本发明属于管道阀门技术领域,公开了一种四通球阀包括阀体,阀体上设有A口、B口、C口和D口；阀球,阀球位于阀体内部由球体和操作杆组成；第一阀座、第二阀座、第三阀座和第四阀座；第一驱动杆、第二驱动杆、第三驱动杆和第四驱动杆；转套；四个L形的连杆。本发明的四通球阀可以降低阀球与密封件之间的磨损,提高密封件的使用寿命和密封效果。(The invention belongs to the technical field of pipeline valves, and discloses a four-way ball valve which comprises a valve body, a valve ball, a first driving rod, a second driving rod, a third driving rod, a fourth driving rod, a rotating sleeve and four L-shaped connecting rods, wherein an opening A, an opening B, an opening C and an opening D are formed in the valve body, the valve ball is positioned in the valve body and consists of a ball body and an operating rod, the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are arranged in the valve body, the first driving rod, the second driving rod, the third driving rod and the fourth driving rod are arranged in the valve body, the rotating sleeve is arranged in the valve.)

1. A four-way ball valve is characterized by comprising

The valve body is provided with an opening A, an opening B, an opening C and an opening D which are positioned on the same horizontal plane and are uniformly distributed along the circumferential direction, and the valve body is internally provided with a mounting hole along the vertical direction;

the valve ball is positioned in the mounting hole and consists of a ball body and an operating rod, wherein an L-shaped communication flow passage is arranged in the ball body, and the communication relation among the port A, the port B, the port C and the port D can be controlled by rotating the valve ball;

the valve comprises a first valve seat, a second valve seat, a third valve seat and a fourth valve seat, wherein the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are arranged in the valve body in a sliding mode and are respectively positioned at an opening A, an opening B, an opening C and an opening D;

the first driving rod, the second driving rod, the third driving rod and the fourth driving rod are respectively positioned in the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove, and the upper ends of the first driving rod, the second driving rod, the third driving rod and the fourth driving rod all extend out of the upper part of the valve body, the lower ends of the first driving rod, the second driving rod, the third driving rod and the fourth driving rod are respectively contacted with the first valve seat, the second valve seat, the third valve seat and the fourth valve seat, when the first driving rod, the second driving rod, the third driving rod and the fourth driving rod slide along the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove, the first valve seat, the second valve seat, the third valve seat and the fourth valve seat can be respectively controlled to be separated from or contacted with the outer surface of the valve ball;

the rotating sleeve is sleeved outside the operating rod and can rotate relative to the operating rod, the operating rod extends out of the rotating sleeve, and a quadrilateral turntable is arranged at the lower end of the rotating sleeve;

one ends of the four L-shaped connecting rods are fixedly connected with the upper ends of the first driving rod, the second driving rod, the third driving rod and the fourth driving rod respectively, and the other ends of the four connecting rods are hinged with four corners of the rotary table respectively;

the four connecting rods can be controlled to rotate by rotating the rotating sleeve, and then the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are respectively driven to slide along the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove by the first driving rod, the second driving rod, the third driving rod and the fourth driving rod, so that the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are selectively contacted and sealed with the outer surface of the ball body in the valve ball; the communication relation among the ports A, B, C and D can be controlled by rotating the operating rod.

2. The four-way ball valve of claim 1, further comprising four first resilient members; the four first elastic members are respectively positioned between the valve body and the first valve seat, the second valve seat, the third valve seat and the fourth valve seat so as to drive the first valve seat, the second valve seat, the third valve seat and the fourth valve seat to move and maintain contact sealing with a ball body in the valve ball.

3. The four-way ball valve according to claim 2, wherein a first handle is fixedly mounted at the upper end of the rotating sleeve, and a second handle is fixedly mounted at the upper end of the operating rod.

4. The four-way ball valve of claim 1, further comprising an upper end cover fixedly mounted on the upper end of the valve body for closing the upper opening of the mounting hole, wherein a mounting cavity is formed between the upper end of the valve body and the upper end cover, the rotary plate and the four connecting rods are located in the mounting cavity, and the rotary sleeve passes through the upper end cover and extends out of the upper end cover.

5. The four-way ball valve according to claim 4, wherein a positioning groove is radially formed in the upper end cover, a positioning ball is disposed in the positioning groove, and a positioning spring is used for forcing the positioning ball to press against the rotary sleeve, a first positioning hole and a second positioning hole are formed in the outer side surface of the rotary sleeve, the first valve seat, the second valve seat, the third valve seat and the fourth valve seat contact and seal with the outer surface of the middle ball body when the positioning ball is located in the first positioning hole, and the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are separated from the outer surface of the middle ball body when the positioning ball is located in the second positioning hole.

6. The four-way ball valve of claim 1, further comprising a lower end cap; the lower end cover is positioned below the valve ball and is detachably connected with the valve body, and the lower end cover is used for axially positioning and dismounting the valve ball.

Technical Field

The invention belongs to the technical field of pipeline valves, and particularly relates to a four-way ball valve.

Background

In industrial or civil infrastructure, pipelines are often used to transport media. Since the pipeline is regulated due to a change in pressure or temperature, a regulating mechanism is used in the pipeline to regulate the flow rate to ensure optimum working conditions and environmental safety. The ball valve has the advantages of small fluid resistance, simple structure, tightness, reliability, convenient operation, rapid opening and closing, wide application range and the like, and is widely applied to the industrial fields of petroleum, chemical industry, power generation, paper making, atomic energy, aviation, rockets and the like and pipeline medium transportation of daily life.

In a conventional ball valve, an opening and closing member of the ball valve is a ball body having a through hole and reciprocally rotated around an axis perpendicular to a passage to open and close the passage, and the ball body is mounted on a valve seat to be opened and closed by a seal between the ball body and the valve seat. However, in order to ensure that no internal leakage occurs, conventional ball valves must be installed by pressing the ball, i.e., the closure member, tightly against the seat. Therefore, the torque is large when the ball valve is opened and closed, the ball body is rubbed with the valve seat in the rotating process, the abrasion is serious, the leakage is easy to cause, the working reliability of the ball valve is reduced, and the service life of the ball valve is shortened;

disclosure of Invention

In order to solve the problems of the traditional ball valve, the invention provides a four-way ball valve. The four-way ball valve comprises a valve body, wherein the valve body is provided with an opening A, an opening B, an opening C and an opening D which are positioned on the same horizontal plane and are uniformly distributed along the circumferential direction, and a mounting hole is formed in the valve body along the vertical direction;

the valve ball is positioned in the mounting hole and consists of a ball body and an operating rod, wherein an L-shaped communication flow passage is arranged in the ball body, and the communication relation among the port A, the port B, the port C and the port D can be controlled by rotating the valve ball;

the valve comprises a first valve seat, a second valve seat, a third valve seat and a fourth valve seat, wherein the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are arranged in the valve body in a sliding mode and are respectively positioned at an opening A, an opening B, an opening C and an opening D;

the first driving rod, the second driving rod, the third driving rod and the fourth driving rod are respectively positioned in the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove, and the upper ends of the first driving rod, the second driving rod, the third driving rod and the fourth driving rod all extend out of the upper part of the valve body, the lower ends of the first driving rod, the second driving rod, the third driving rod and the fourth driving rod are respectively contacted with the first valve seat, the second valve seat, the third valve seat and the fourth valve seat, when the first driving rod, the second driving rod, the third driving rod and the fourth driving rod slide along the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove, the first valve seat, the second valve seat, the third valve seat and the fourth valve seat can be respectively controlled to be separated from or contacted with the outer surface of the valve ball;

the rotating sleeve is sleeved outside the operating rod and can rotate relative to the operating rod, the operating rod extends out of the rotating sleeve, and a quadrilateral turntable is arranged at the lower end of the rotating sleeve;

one ends of the four L-shaped connecting rods are fixedly connected with the upper ends of the first driving rod, the second driving rod, the third driving rod and the fourth driving rod respectively, and the other ends of the four connecting rods are hinged with four corners of the rotary table respectively;

the four connecting rods can be controlled to rotate by rotating the rotating sleeve, and then the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are respectively driven to slide along the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove by the first driving rod, the second driving rod, the third driving rod and the fourth driving rod, so that the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are selectively contacted and sealed with the outer surface of the ball body in the valve ball; the communication relation among the ports A, B, C and D can be controlled by rotating the operating rod.

Preferably, the four-way ball valve further comprises four first elastic members; the four first elastic members are respectively positioned between the valve body and the first valve seat, the second valve seat, the third valve seat and the fourth valve seat so as to drive the first valve seat, the second valve seat, the third valve seat and the fourth valve seat to move and maintain contact sealing with the ball body in the ball valve.

Preferably, a first handle is fixedly mounted at the upper end of the rotating sleeve, and a second handle is fixedly mounted at the upper end of the operating rod.

Further preferably, the valve further comprises an upper end cover, the upper end cover is fixedly installed at the upper end of the valve body and used for sealing the upper opening of the installation hole, an installation cavity is formed between the upper end of the valve body and the upper end cover, the rotary disc and the four connecting rods are located in the installation cavity, and the rotary sleeve penetrates through the upper end cover and stretches out to the position above the upper end cover.

Preferably, the upper end cover is provided with a positioning groove along the radial direction, the positioning groove is internally provided with a positioning ball and a positioning spring for forcing the positioning ball to be pressed on the rotating sleeve, the outer side surface of the rotating sleeve is provided with a first positioning hole and a second positioning hole, when the positioning ball is positioned in the first positioning hole, the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are in contact sealing with the outer surface of the ball body in the valve ball, and when the positioning ball is positioned in the second positioning hole, the first valve seat, the second valve seat, the third valve seat and the fourth valve seat are separated from the outer surface of the ball body in the valve ball.

Preferably, the four-way ball valve further comprises a lower end cover; the lower end cover is positioned below the valve ball and is detachably connected with the valve body, and the lower end cover is used for axially positioning and dismounting the valve ball.

Compared with the ball valve with the traditional structure, the four-way ball valve has the following beneficial technical effects:

in the four-way ball valve, the turntable can be controlled to drive the four connecting rods to rotate by operating the first handle, and then the first drive rod, the second drive rod, the third drive rod and the fourth drive rod respectively drive the first valve seat, the second valve seat, the third valve seat and the fourth valve seat to slide to realize contact sealing or separation with the outer surface of a ball body; the switching of the position of the valve ball can be controlled by operating the second handle; because first handle and second handle can independent control, like this, just can be when the valve ball opens or closes, control first handle rotation earlier and realize the rotation operation of contactless between valve ball and the four disk seats, operate the second handle again and carry out the valve ball position switch, thereby can avoid the valve ball to rotate the contact friction that forms between the in-process and the disk seat sealing member, reduce the rotation moment of torsion of valve ball and the wearing and tearing destruction to the sealing member, improve the flexibility of whole four-way ball valve switching-over operation and the life and the leakproofness effect of sealing member.

Drawings

FIG. 1 is a schematic cross-sectional view of a four-way ball valve according to the present embodiment;

FIG. 2 is a schematic structural view of a cross section taken along the line A-A in FIG. 1;

FIG. 3 is a schematic structural view of a cross section taken along the direction B-B in FIG. 1;

FIG. 4 is a schematic structural view of a cross section taken along the direction C-C in FIG. 1;

FIG. 5 is a schematic structural view of the four-way ball valve of the present embodiment when the first handle rotates 45 degrees from the position shown in FIG. 1;

FIG. 6 is a schematic structural view of a cross section taken along the line A-A in FIG. 5;

FIG. 7 is a schematic structural view of a cross section taken along the line B-B in FIG. 5;

fig. 8 is a schematic structural view of a cross section in the direction C-C in fig. 5.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 8, the four-way ball valve of the present embodiment includes a valve body 8, the valve body 8 is provided with a port a, a port B, a port C and a port D which are located on the same horizontal plane and are uniformly distributed along the circumferential direction, and the valve body 8 is provided with a mounting hole along the vertical direction.

And the valve ball 1 is positioned in the mounting hole and consists of a ball body and an operating rod 102, wherein an L-shaped communication flow passage 101 is arranged in the ball body, and the communication relation among the ports A, B, C and D can be controlled by rotating the valve ball.

The valve ball 1 comprises a first valve seat 2a, a second valve seat 2B, a third valve seat 2C and a fourth valve seat 2D, wherein the first valve seat 2a, the second valve seat 2B, the third valve seat 2C and the fourth valve seat 2D are arranged in the valve body 8 in a sliding mode and are respectively located at an opening A, an opening B, an opening C and an opening D, sealing elements are arranged at the end portions of the first valve seat 2a, the second valve seat 2B, the third valve seat 2C and the fourth valve seat 2D to form selective contact sealing with the outer surface of a ball body in the valve ball 1, and a first sliding groove 8a, a second sliding groove 8B, a third sliding groove 8C and a fourth sliding groove 8D which are communicated with the interior of the valve body 8 are respectively arranged above the first valve seat 2a, the second valve seat 2B, the third valve seat 2C and the fourth valve seat 2D on the upper end surface of the valve body 8.

A first driving rod 4a, a second driving rod 4b, a third driving rod 4c and a fourth driving rod 4d, wherein the first driving rod 4a, the second driving rod 4b, the third driving rod 4c and the fourth driving rod 4d are respectively located in the first sliding chute 8a, the second sliding chute 8b, the third sliding chute 8c and the fourth sliding chute 8d, the upper ends of the first driving rod 4a, the second driving rod 4b, the third driving rod 4c and the fourth driving rod 4d are all extended to the upper side of the valve body 8, the lower ends of the first driving rod 4a, the second driving rod 4b, the third driving rod 4c and the fourth driving rod 4d are respectively contacted with the first valve seat 2a, the second valve seat 2b, the third valve seat 2c and the fourth valve seat 2d, and the first driving rod 4a, the second driving rod 4b, the third driving rod 4c and the fourth driving rod 4d are respectively located along the first sliding chute 8a, the second sliding chute 8b, the third sliding chute 8c and the fourth sliding chute 4, When the second sliding chute 8b, the third sliding chute 8c and the fourth sliding chute 8d slide, the first valve seat, the second valve seat, the third valve seat and the fourth valve seat can be respectively controlled to be separated from or contacted with the outer surface of the valve ball.

The rotating sleeve 5 is sleeved outside the operating rod 102 and can rotate relative to the operating rod 102, the operating rod 102 extends above the rotating sleeve 5, and the lower end of the rotating sleeve 5 is provided with a quadrilateral rotating disc 51.

Four L-shaped connecting rods, namely a first connecting rod 9a, a second connecting rod 9b, a third connecting rod 9c and a fourth connecting rod 9d, wherein one ends of the four connecting rods are fixedly connected with the upper ends of the first driving rod 4a, the second driving rod 4b, the third driving rod 4c and the fourth driving rod 4d, and the other ends of the four connecting rods are hinged with four corners of the turntable 51.

The four connecting rods can be controlled to rotate by rotating the rotating sleeve 5, and then the first valve seat 2a, the second valve seat 2b, the third valve seat 2c and the fourth valve seat 2d are respectively driven to slide along the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove by the first driving rod 4a, the second driving rod 4b, the third driving rod 4c and the fourth driving rod 4d, so that selective contact sealing of the first valve seat, the second valve seat, the third valve seat and the fourth valve seat with the outer surface of the ball body in the valve ball is realized; the communication relation among the ports A, B, C and D can be controlled by rotating the operating rod.

Like this, through controlling four disk seats in advance for spheroidal motion, just can eliminate the spheroid and rotate the time and the disk seat on the frictional contact who forms between the sealing member, reduce the resistance to valve ball drive, improve the convenience of operation, reduce the wearing and tearing to the sealing member simultaneously, improve sealed effect and life.

As shown in fig. 1 to 8, the four-way ball valve of the present embodiment further includes four first elastic members 3a, 3b, 3c, and 3 d; the four first elastic members 3a, 3b, 3c, 3d are respectively located between the valve body 8 and the first, second, third and fourth valve seats 2a, 2b, 2c, 2d to drive the first, second, third and fourth valve seats 2a, 2b, 2c, 2d to move and maintain contact sealing with the ball in the valve ball 1.

Referring to fig. 1 to 8, a first handle 6 is fixedly mounted on an upper end of the rotating sleeve 5 of the present embodiment, and a second handle 7 is fixedly mounted on an upper end of the operating rod 102.

Further, the four-way ball valve of the embodiment further comprises an upper end cover 11, the upper end cover 11 is fixedly installed at the upper end of the valve body 8 and used for sealing the upper opening of the installation hole, an installation cavity is formed between the upper end of the valve body 8 and the upper end cover 11, the rotary disc 51 and the four connecting rods are located in the installation cavity, and the rotary sleeve 5 penetrates through the upper end cover 11 and extends out of the upper portion of the upper end cover 11.

In addition, as shown in fig. 1 to 8, a positioning groove 111 is radially formed in the upper end cover 11, a positioning ball 9 and a positioning spring 10 for forcing the positioning ball 9 to press against the rotary sleeve 5 are disposed in the positioning groove 111, a first positioning hole 512 and a second positioning hole 511 are formed in an outer side surface of the rotary sleeve 5, when the positioning ball 9 is located in the first positioning hole 512, the first valve seat 2a, the second valve seat 2b, the third valve seat 2c and the fourth valve seat 2d are in contact sealing with an outer surface of a ball body in the valve ball 1, and when the positioning ball 9 is located in the second positioning hole 511, the first valve seat 2a, the second valve seat 2b, the third valve seat 2c and the fourth valve seat 2d are separated from the outer surface of the ball body in the valve ball 1.

Referring to fig. 1 to 8, in the four-way ball valve of the present embodiment, a lower end cover 12 is further included; the lower end cover 12 is located below the valve ball 1 and detachably connected with the valve body 8, and is used for axially positioning and disassembling the valve ball 1.

The four-way ball valve of this embodiment carries out the during operation, is connected A mouth, B mouth, C mouth and D mouth and different pipelines, and concrete working process is as follows:

when the position of the valve ball 1 is switched, the rotating sleeve 5 is controlled to rotate for 45 degrees by the first handle 6, so that the positioning ball 9 is converted from being positioned in the first positioning hole 512 to enter the second positioning hole 511, the rotating sleeve 5 rotates to drive the four connecting rods to rotate through the rotating disc 51, and then the four connecting rods respectively drive the first driving rod 4a, the second driving rod 4b, the third driving rod 4c and the fourth driving rod 4d to move towards the direction far away from the valve ball 1, so that the first valve seat 2a, the second valve seat 2b, the third valve seat 2c and the fourth valve seat 2d are driven to overcome the acting forces of the four first elastic parts to be separated from the contact with the outer surface of the ball body of the valve ball 1; then the second handle 7 is controlled to rotate, so that the valve ball 1 rotates to the switching position; finally, the first handle 6 is rotated again to enable the positioning ball 9 to enter the first positioning hole 512 again, due to the rotation of the rotating sleeve 5, the four connecting rods are driven to rotate through the rotating disc 51, and then the four connecting rods respectively drive the first driving rod 4a, the second driving rod 4b, the third driving rod 4c and the fourth driving rod 4d to move towards the direction close to the valve ball 1, so that the first valve seat 2a, the second valve seat 2b, the third valve seat 2c and the fourth valve seat 2d are driven to be in contact with the outer surface of the ball body of the valve ball 1 again for sealing.