CN210318603U

CN210318603U - Throttling ball valve

Info

Publication number: CN210318603U
Application number: CN201920600093.XU
Authority: CN
Inventors: 郑磊; 毛剑峰; 林韩波; 何青辉; 胡英豪; 郑家裕; 王志坤; 姚家晖; 朱耀坤
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-04-14
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a throttling ball valve, which is provided with a first valve body, a second valve body, a spherical valve core and an adjusting part for adjusting the rotation of the valve core, wherein the spherical valve core is provided with a plurality of through holes with different diameters, the first valve body and the second valve body are communicated through one of the through holes, and the adjusting part comprises a guider and a button; the guider is rotated by pressing the button, the valve core is driven to rotate, through holes communicated with the first valve body and the second valve body are switched, and the flow rate of the whole valve body is controlled by switching through holes with different diameters on the spherical valve core.

Description

Throttling ball valve

Technical Field

The utility model relates to a valve technical field especially relates to a throttling ball valve.

Background

A throttle valve is a valve that controls the flow of fluid by changing the throttle section or throttle length. The flow of the throttle valve is not only dependent on the area of the throttle orifice, but also related to the pressure difference between the front and the rear of the throttle orifice, and the rigidity of the valve is small, so the throttle valve is only suitable for occasions with small load change of an actuating element and low speed stability requirement. For a throttling speed regulating system with large load change of an actuating element and high requirement on speed stability, pressure compensation must be carried out on a throttling valve to keep the front-rear pressure difference of the throttling valve unchanged, so that the flow stability is achieved.

Disclosure of Invention

The above-mentioned not enough to prior art, the utility model aims to solve the technical problem that a throttle ball valve of adjustable flow size is proposed.

The utility model provides a technical scheme that its technical problem adopted is, provides a throttling ball valve, and it includes: a first valve body;

a second valve body: the second valve body is detachably connected with the first valve body and encloses a cavity; the cavity is provided with a rotatable spherical valve core; the ball valve core is provided with a plurality of through holes with different apertures, and the first valve body and the second valve body are communicated through one of the through holes; the spherical valve core is provided with a guide port;

the adjusting piece comprises a guider and a button, the guider extends into the guide opening, the button is movably connected, the button is provided with a plurality of first bulges, each first bulge is provided with a first inclined surface, the guider is provided with second bulges, the number of the second bulges is matched with that of the first bulges, and each second bulge is provided with a second inclined surface; the first inclined plane is movably contacted with the second inclined plane and enables the spherical valve core to rotate by a preset angle.

Preferably, one of the first valve body and the second valve body is provided with a guide cavity, or the first valve body and the second valve body enclose the guide cavity, and the button is located in the guide cavity and can move along the axial direction of the guide cavity.

Preferably, the outer wall of the button is provided with at least one first elongated protrusion, and the guide cavity is provided with first limiting grooves corresponding to the first elongated protrusions in number and allowing the first elongated protrusions to extend into the guide cavity.

Preferably, the outer wall of the guider is provided with at least one second elongated protrusion, and the guide opening is provided with second limiting grooves corresponding to the second elongated protrusions in number and allowing the second elongated protrusions to extend into.

Preferably, a spring is provided in the guide opening, the spring supporting the guide.

Preferably, the inner wall of the guide cavity is provided with a plurality of alignment grooves, and the plurality of second protrusions are movably inserted into the plurality of alignment grooves respectively.

Preferably, the first ramp length is longer than the second ramp length.

Preferably, a cylinder extends outwards along the radial direction from the outer wall of the spherical valve core, and the guide port is arranged on the cylinder.

Preferably, the post is in the guide cavity.

Preferably, the first valve body and the second valve body have the same structure.

The utility model discloses in set up first valve body, second valve body, have ball valve core and adjusting valve core pivoted regulating part, ball valve core is provided with the through-hole of a plurality of different diameters, and first valve body and second valve body make ball valve core rotate through the regulating part through a through-hole intercommunication in a plurality of through-holes, and then switch the through-hole of the first valve body of intercommunication and second valve body, realize throttle ball valve's flow control.

Drawings

Fig. 1 is a schematic perspective view of a throttling ball valve in the embodiment.

Fig. 2 is a schematic perspective view of the throttling ball valve with the first valve body removed in the embodiment.

Fig. 3 is a schematic structural diagram of a second valve body in the embodiment.

Fig. 4 is a structural schematic diagram of the ball valve core in the embodiment.

FIG. 5 is a schematic structural diagram of a button in the embodiment.

FIG. 6 is a schematic view showing the structure of the guide in the embodiment.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Referring to fig. 1 to 6, the present invention discloses a throttling ball valve, which includes a first valve body 100 and a second valve body 200, the first valve body 100 and the second valve body 200 are connected by a bolt, the joint of the first valve body 100 and the second valve body 200 is enclosed into a spherical cavity, a spherical valve core 300 is disposed in the spherical cavity, the outer wall of the spherical valve core 300 is closely attached to the inner wall of the spherical cavity, and the spherical valve core 300 is rotatable in the cavity.

The ball valve core 300 has a plurality of through holes 310 with different diameters, and the first valve body 100 communicates with the second valve body 200 through one of the plurality of through holes 310.

The through holes 310 communicating the first valve body 100 and the second valve body 200 are switchable, and by rotating the ball valve core 300, different through holes 310 can be switched to communicate the first valve body 100 and the second valve body 200.

Because the inner diameters of the through holes 310 are different, the through holes 310 communicating the first valve body 100 and the second valve body 200 can be changed by rotating the ball valve core 300, and the flow of the throttling ball valve can be further changed.

In this embodiment, the ball valve core 300 is provided with three through holes 310 with different diameters, each through hole 310 has two ports, the three through holes 310 always have six ports, the six ports are located on the same circular plane, and the circular included angle between the adjacent ports and the ball shape is 60 °.

The rotation of the ball valve core 300 is adjusted by the adjusting member 400, and the ball valve core 300 is rotated in the spherical cavity by a preset angle, in this embodiment, the rotation angle of the ball valve core 300 is adjusted by 60 ° each time.

The ball valve core 300 is provided with a guide port 320; the adjusting member 400 comprises a guide 410 and a button 420, wherein the guide 410 extends into the guide port 320, the button 420 is movably connected, the button 420 is provided with a plurality of first protrusions 421, each first protrusion 421 is provided with a first inclined surface 421a, the guide 410 is provided with a plurality of second protrusions 411 matched with the plurality of first protrusions 421, and each second protrusion 411 is provided with a second inclined surface 411 a; the first inclined surface 421a is in movable contact with the second inclined surface 411a and rotates the ball valve element 300 by a preset angle.

Specifically, by pressing the button 420, the first inclined surface 421a contacts with the second inclined surface 411a, so that the guide 410 is forced to rotate, and the guide 410 rotates to drive the ball valve core 300 to rotate, so that the communication through hole 310 of the first valve body 100 and the second valve body 200 is changed, and the flow rate of the throttling ball valve is further changed.

One of the first valve body 100 and the second valve body 200 is provided with a guide cavity 10, or the first valve body 100 and the second valve body 200 enclose the guide cavity 10, and the button 420 is located in the guide cavity 10 and is movable in the axial direction of the guide cavity 10.

Specifically, the guide cavity 10 is used for defining a motion track of the button 420, the button 420 moves along the axial direction of the guide cavity 10, and the movement of the button 420 forces the guide 410 to rotate along the axis of the guide cavity 10 due to the contact of the first inclined surface 421a on the button 420 and the second inclined surface 411a on the guide 410.

The outer wall of the button 420 is provided with at least one first elongated protrusion 422, and the guide cavity 10 is provided with first limiting grooves 11, the number of which corresponds to the number of the first elongated protrusions 422, for the first elongated protrusions 422 to extend into. The first limiting groove 11 is used for limiting the motion track of the button 420, so that the button 420 only moves along the axial direction of the guide cavity 10, and the button 420 and the guide cavity 10 are prevented from moving relative to each other in the circumferential direction.

At least one second elongated protrusion 412 is disposed on the outer wall of the guide 410, and the guide opening 320 is provided with second limiting grooves 311, the number of which corresponds to the number of the second elongated protrusions 412, for the second elongated protrusions 412 to extend into.

The second limiting groove 311 is used for limiting the motion track of the guider 410, so that the guider 410 moves along the axial direction of the guide opening 320, and the guider 410 and the guide opening 320 are prevented from moving relative to each other in the circumferential direction.

The button 420 moves along the axial direction of the guide chamber 10 to force the guide 410 to rotate, and the rotation of the guide 410 drives the ball valve core 300 to rotate because the guide 410 cannot move axially relative to the guide port 320.

A spring 321 is disposed in the guiding opening 320, the spring 321 supports the guider 410, and in this embodiment, the guider 410 movably extends out of the guiding opening 320.

Specifically, when the button 420 is pressed to move downwards, the first protrusion 421 in the button 420 contacts the second protrusion 411 in the guide 410, the button 420 firstly drives the guide 410 to move downwards in the guide port 320 and compresses the spring 321, and because the length of the first inclined surface 421a is longer than that of the second inclined surface 411a, the continuous downward movement of the button 420 enables the second inclined surface 411a to continuously slide on the first inclined surface 421a until the first inclined surface 421a slides the end of the first inclined surface 421a, so that the guide 410 rotates by a preset angle, and the ball valve core 300 rotates by a preset angle, thereby achieving the purpose of switching the through holes 310 for communicating the first valve body 100 and the second valve body 200.

The inner wall of the guide cavity 10 is provided with a plurality of positioning grooves 12, and the plurality of second protrusions 411 are movably inserted into the plurality of positioning grooves 12 respectively.

After the through holes 310 communicating the first valve body 100 and the second valve body 200 are switched, in order to facilitate the next adjustment of the flow rate of the throttling ball valve, the guider 410 is extended into the normal position groove 12 by the elastic force of the spring 321, and the guide groove plays a role in correcting the position of the guider 410, so that when the spherical valve core 300 is adjusted to rotate, the rotation angle of the spherical valve core 300 can be accurately adjusted.

A cylinder 330 extends from the outer wall of the ball valve core 300 in the radial direction, the guide port 320 is located on the cylinder 330, the cylinder 330 extends into the guide cavity 10, and the cylinder 330 can rotate in the guide cavity 10.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A throttling ball valve, comprising:

a first valve body;

a second valve body; the second valve body is detachably connected with the first valve body and encloses a cavity; the cavity is provided with a rotatable spherical valve core; the ball valve core is provided with a plurality of through holes with different apertures, and the first valve body and the second valve body are communicated through one of the through holes; the spherical valve core is provided with a guide port;

2. A throttling ball valve according to claim 1, wherein: one of the first valve body and the second valve body is provided with a guide cavity, or the first valve body and the second valve body are surrounded with the guide cavity, and the button is located in the guide cavity and can move along the axial direction of the guide cavity.

3. A throttling ball valve according to claim 2, wherein: the outer wall of the button is provided with at least one first elongated protrusion, and the guide cavity is provided with first limiting grooves corresponding to the number of the first elongated protrusions and allowing the first elongated protrusions to extend into.

4. A throttling ball valve according to claim 1, wherein: the outer wall of the guider is provided with at least one second elongated protrusion, and the guide port is provided with second limiting grooves corresponding to the second elongated protrusions in number and allowing the second elongated protrusions to extend into.

5. A throttle ball valve according to claim 1 or 4, characterized in that: and a spring is arranged in the guide opening and supports the guider.

6. A throttling ball valve according to claim 2, wherein: the inner wall of the guide cavity is provided with a plurality of alignment grooves, and the second protrusions are movably inserted into the alignment grooves respectively.

7. A throttling ball valve according to claim 1, wherein: the first ramp length is longer than the second ramp length.

8. A throttling ball valve according to claim 2, wherein: the outer wall of the spherical valve core extends outwards along the radial direction to form a cylinder, and the guide port is arranged on the cylinder.

9. A throttling ball valve according to claim 8, wherein: the post is in the guide cavity.

10. A throttling ball valve according to claim 1, wherein: the first valve body and the second valve body are identical in structure.