CN218992386U

CN218992386U - High-precision airflow flow regulating valve

Info

Publication number: CN218992386U
Application number: CN202223175423.6U
Authority: CN
Inventors: 宛银雄; 任曼; 张鼎锋
Original assignee: Wuhan Dongmai Electromechanical Equipment Engineering Co ltd
Current assignee: Wuhan Dongmai Electromechanical Equipment Engineering Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-05-09
Anticipated expiration: 2032-11-29

Abstract

The utility model belongs to the technical field of flow regulating valves, and particularly relates to a high-precision airflow flow regulating valve, which comprises: a hollow valve body; a valve seat installed in the valve body and in a radial direction; the valve core is arranged in the valve body and is positioned on one side of the valve body and can rotate; the rotating mechanism is used for rotating the valve core and is arranged on the valve body; the first through holes penetrate through the valve seat and are distributed on the valve seat in an annular array respectively; according to the utility model, the valve core can rotate on one side of the valve seat through the rotating mechanism, when the first through hole is in butt joint with the second through hole, the valve body is in a fully-opened state, when the first through hole is in dislocation with the second through hole, the valve body is in a fully-closed state, and when the valve core rotates on one side of the valve seat, the valve core is prevented from being regulated, and gas medium directly acts on the valve core, so that the opening and closing of the valve body are conveniently regulated.

Description

High-precision airflow flow regulating valve

Technical Field

The utility model belongs to the technical field of flow regulating valves, and particularly relates to a high-precision airflow flow regulating valve.

Background

The pneumatic flow regulating valve is a regulating valve taking an air source as power, is a valve generic term for controlling the flow, and can be also understood as a pneumatic regulating valve which aims at regulating the flow, wherein the pneumatic regulating valve takes compressed air as a power source, takes an air cylinder as an actuator, drives the valve by means of accessories such as a valve positioner, a converter, an electromagnetic valve, a position-keeping valve, an air storage tank, a gas filter and the like, realizes the on-off or proportional regulation, and receives a control signal of an industrial automatic control system to finish the regulation of pipeline medium: flow, pressure, temperature, liquid level and other technological parameters; the pneumatic regulating valve has the characteristics of simple control, quick response, intrinsic safety and no need of taking explosion-proof measures.

In the patent number CN202023288829.6, the name is a novel China adaptation type of high accuracy air current flow control valve, through the internal thread sleeve that is equipped with, the lead screw, 8 sleeve pipes, the pivot, first gear wheel, first pinion, the second gear wheel, the second pinion, the rocking handle, spacing slide bar and connecting plate, can realize promoting case and disk seat cooperation fast and slowly and carry out fast and fine setting to the clearance of case and disk seat, thereby can accurate control air current flow's output, but, because the case is directly inserted on the disk seat, and block up on the disk seat, when there is gaseous medium in the valve body, the case is difficult for breaking away from with the disk seat, the case of directly inserting simultaneously can increase the stroke that the case was adjusted, be unfavorable for adjusting the case, in addition, when current case is pegged graft on the disk seat, seal the gap between case and the disk seat through the sealing washer, and because the case is the toper structure, lead to the sealing effect difference between case and the disk seat of breaking away from under gaseous medium's extrusion.

Disclosure of Invention

The utility model aims to provide a high-precision airflow flow regulating valve, which solves the problem that the existing valve core is not beneficial to separating from a valve seat under the condition of medium, and in addition, the valve core is of a conical structure, so that a sealing ring is separated from the valve core under the extrusion of a gas medium.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a high precision airflow rate regulating valve comprising: a hollow valve body;

a valve seat installed in the valve body and in a radial direction;

the valve core is arranged in the valve body and is positioned on one side of the valve body and can rotate;

the rotating mechanism is used for rotating the valve core and is arranged on the valve body;

the first through holes penetrate through the valve seat and are distributed on the valve seat in an annular array respectively;

the second through holes penetrate through the valve core and are matched with the first through holes, the second through holes are distributed on the valve core in an annular array mode, and the inner diameter of the first through holes is equal to that of the second through holes.

Preferably, a plurality of sealing mechanisms which can be inserted into a plurality of second through holes are arranged on one side, close to the valve core, of the valve body, and the sealing mechanisms comprise:

the plugs are movably mounted on the valve seat, each plug is of a bullet structure, one ends of the plugs can be inserted into the corresponding second through holes, and springs are mounted between the plugs and the valve seat.

Preferably, the rotating mechanism comprises a mounting hole formed in the valve body and a rotating shaft rotatably mounted in the mounting hole, a knob is mounted at one end of the rotating shaft and positioned outside the valve body, a bevel gear is mounted at one end of the rotating shaft and positioned in the valve body, a bevel gear ring is mounted at one side, far away from the valve seat, of the valve core, and the bevel gear is mounted at the eccentric position of the bevel gear ring and meshed with the bevel gear ring.

Preferably, a plurality of mounting grooves are formed in the valve body and close to one side of the valve core, the mounting grooves are distributed in a staggered mode with the first through holes respectively, springs are mounted in the mounting grooves, one ends of the springs are abutted to plugs, and one ends of the plugs are mounted in the mounting grooves.

Preferably, a rotating groove is formed in the inner wall of the valve body, and the valve core is rotatably arranged in the rotating groove.

Preferably, joints are arranged at two ends of the valve body, and bolts are arranged between the joints and the valve body.

Compared with the prior art, the utility model has the following beneficial effects:

(1) According to the utility model, the valve core can rotate on one side of the valve seat through the rotating mechanism, when the first through hole is in butt joint with the second through hole, the valve body is in a fully-opened state, when the first through hole is in dislocation with the second through hole, the valve body is in a fully-closed state, and when the valve core rotates on one side of the valve seat, the valve core is prevented from being regulated, and gas medium directly acts on the valve core, so that the opening and closing of the valve body are conveniently regulated.

(2) According to the utility model, the second through hole can be sealed through the sealing mechanism, when the valve body is closed, the second through hole is positioned at one side of the plug, and the plug is inserted into the second through hole under the elasticity of the spring, so that the second through hole is sealed, the leakage of gas to the other side of the valve body through the second through hole is avoided, and the problem that the sealing ring is separated from the valve core under the extrusion of a gas medium due to the fact that the existing valve core is of a conical structure is solved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a front view of a valve seat and plug of the present utility model;

FIG. 4 is a front view of the bevel ring and valve seat of the present utility model;

in the figure: 1-knob, 2-pivot, 3-valve body, 4-joint, 5-helical gear, 6-skewed tooth ring, 7-rotary groove, 8-case, 9-end cap, 10-mounting groove, 11-spring, 12-first through-hole, 13-disk seat, 14-second through-hole, 15-mounting hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: a high precision airflow rate regulating valve comprising: a hollow valve body 3;

a valve seat 13 installed in the valve body 3 in a radial direction;

a valve core 8 which is installed inside the valve body 3 and is rotatable at one side of the valve body 3;

a rotation mechanism for rotating the valve element 8, the rotation mechanism being mounted on the valve body 3;

a plurality of first through holes 12 penetrating through the valve seat 13, wherein the plurality of first through holes 12 are distributed on the valve seat 13 in an annular array;

the plurality of second through holes 14 penetrate through the valve core 8 and are matched with the plurality of first through holes 12, the plurality of second through holes 14 are distributed on the valve core 8 in an annular array, and the inner diameter of the first through holes 12 is equal to the inner diameter of the second through holes 14.

Through the technical scheme:

through rotatory rotary mechanism, drive case 8 and rotate in the one side of disk seat 13 to adjust the position of second through-hole 14 on the case 8 in first through-hole 12 one side, when first through-hole 12 and second through-hole 14 butt joint, valve body 3 is full-open, and when first through-hole 12 and second through-hole 14 dislocation, valve body 3 is full-closed, and when first through-hole 12 and second through-hole 14 intersect, the accessible first through-hole 12 and the flow size of second through-hole 14 crossing area regulation valve body 3.

Further, with respect to the valve core 8 provided as described above, the inner wall of the valve body 3 is provided with a rotation groove 7, the valve core 8 is rotatably installed in the rotation groove 7, and the valve core 8 is rotatable in the valve body 3 through the rotation groove 7.

Further, for the valve body 3 set as described above, the joints 4 are installed at both ends of the valve body 3, the bolts are installed between the joints 4 and the valve body 3, the joints 4 are fixedly installed on the valve body 3 through the bolts, and the valve body 3 can be installed on a pipeline through the joints 4.

Further, for the rotating mechanism arranged above, the rotating mechanism comprises a mounting hole 15 formed in the valve body 3 and a rotating shaft 2 rotatably mounted in the mounting hole 15, one end of the rotating shaft 2 is provided with a knob 1 outside the valve body 3, one end of the rotating shaft 2 is provided with a bevel gear 5 inside the valve body 3, one side, far away from the valve seat 13, of the valve core 8 is provided with a bevel gear 6, the bevel gear 5 is mounted at the eccentric position of the bevel gear 6 and is meshed with the bevel gear 6, the knob 1 is held and rotated, so that the rotating shaft 2 is driven to rotate on the valve body 3, the bevel gear 5 is driven to rotate, finally, the valve core 8 is driven to rotate on one side of the valve seat 13 through the bevel gear 6, the positions of the first through hole 12 and the second through hole 14 are regulated, one end of the rotating shaft 2 extends into the valve body 3 through the mounting hole 15, a sealing ring is arranged between the mounting hole 15 and the rotating shaft 2, gas medium leakage of the valve body 3 is avoided, and the sealing ring is not shown in the drawing.

Referring to fig. 1 and 3-4, a valve body 3 is provided with a plurality of sealing mechanisms inserted into a plurality of second through holes 14 on a side close to a valve core 8, and the sealing mechanisms comprise:

the plugs 9 are movably arranged on the valve seat 13, the plugs 9 are of bullet structures, one ends of the plugs 9 can be inserted into the corresponding second through holes 14, and springs 11 are arranged between the plugs 9 and the valve seat 13.

Through the technical scheme:

when the valve core 8 rotates on one side of the valve seat 13, the valve core 8 extrudes the plug 9 to enable the plug 9 to retract into the valve seat 13, when the second through hole 14 is located on one side of the plug 9, the plug 9 is directly inserted into the second through hole 14 through the elastic force of the spring 11, so that the valve core 8 is plugged, the gas medium in the valve body 3 is prevented from leaking to the other side through the valve core 8, a sealing gasket is arranged between the valve core 8 and the valve seat 13, the sealing gasket is located on the outer sides of the first through holes 12 and the second through holes 14, the sealing gasket is not marked in fig. 1, and the gas medium between the valve core 8 and the valve seat 13 is prevented from leaking to the other side of the valve core 8 through the rotating groove 7.

Further, for the plug 9, the plurality of mounting grooves 10 are formed in the valve body 3 and close to one side of the valve core 8, the plurality of mounting grooves 10 are respectively distributed in a staggered manner with the plurality of first through holes 12, the springs 11 are mounted in the mounting grooves 10, one ends of the springs 11 are abutted to the plug 9, one ends of the plugs 9 are mounted in the mounting grooves 10, the springs 11 and the plugs 9 are mounted in the valve seat 13 through the mounting grooves 10, meanwhile, the plugs 9 are mounted on the rotating tracks of the plurality of second through holes 14 through the mounting grooves 10, when the valve core 8 rotates, the second through holes 14 pass through the plugs 9, and when the second through holes 14 are positioned on one side of the plugs 9, the plugs 9 are conveniently plugged into the second through holes 14.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high precision airflow rate regulating valve, comprising: a hollow valve body (3);

a valve seat (13) mounted in the valve body (3) and in a radial direction;

a valve core (8) which is arranged in the valve body (3) and is rotatable at one side of the valve body (3);

the rotating mechanism is used for rotating the valve core (8) and is arranged on the valve body (3);

a plurality of first through holes (12) penetrating through the valve seat (13), wherein the plurality of first through holes (12) are distributed on the valve seat (13) in an annular array;

the valve core (8) is provided with a plurality of first through holes (12), a plurality of second through holes (14) penetrating through the valve core (8) and matched with the plurality of first through holes (12), the plurality of second through holes (14) are distributed on the valve core (8) in an annular array respectively, and the inner diameter of the first through holes (12) is equal to the inner diameter of the second through holes (14).

2. A high precision airflow rate regulating valve according to claim 1, wherein: a plurality of sealing mechanisms which can be inserted into a plurality of second through holes (14) are arranged on one side, close to the valve core (8), of the valve body (3), and the sealing mechanisms comprise:

the plug (9) is movably mounted on the valve seat (13), the plug (9) is of a bullet structure, one ends of a plurality of plugs (9) can be inserted into corresponding second through holes (14), and springs (11) are mounted between the plugs (9) and the valve seat (13).

3. A high precision airflow rate regulating valve according to claim 1, wherein: the rotary mechanism comprises a mounting hole (15) formed in the valve body (3) and a rotary shaft (2) rotatably mounted in the mounting hole (15), one end of the rotary shaft (2) is provided with a knob (1) which is positioned outside the valve body (3), one end of the rotary shaft (2) is provided with a bevel gear (5) which is positioned in the valve body (3), one side, far away from the valve seat (13), of the valve core (8) is provided with a bevel gear ring (6), and the bevel gear (5) is mounted at the eccentric position of the bevel gear ring (6) and is meshed and connected with the bevel gear ring (6).

4. A high precision airflow rate regulating valve according to claim 2, wherein: the valve comprises a valve body (3), a plurality of mounting grooves (10) which are formed in the valve body (3) and are close to one side of a valve core (8), wherein the mounting grooves (10) are distributed in a staggered mode with a plurality of first through holes (12), springs (11) are mounted in the mounting grooves (10), one ends of the springs (11) are abutted to plugs (9), and one ends of the plugs (9) are mounted in the mounting grooves (10).

5. A high precision airflow rate regulating valve according to claim 1, wherein: a rotating groove (7) is formed in the inner wall of the valve body (3), and the valve core (8) is rotatably arranged in the rotating groove (7).

6. A high precision airflow rate regulating valve according to claim 1, wherein: the two ends of the valve body (3) are provided with connectors (4), and bolts are arranged between the connectors (4) and the valve body (3).