CN217683520U

CN217683520U - Device for adjusting air inlet flow rate of control valve

Info

Publication number: CN217683520U
Application number: CN202221407029.8U
Authority: CN
Inventors: 李清; 黄祯; 夏沛善
Original assignee: Shanghai Shunhai Precision Machinery Co ltd
Current assignee: Shanghai Shunhai Precision Machinery Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-10-28
Anticipated expiration: 2032-06-07

Abstract

The utility model relates to the relevant technical field of control valves, in particular to a device for regulating the air inlet flow rate of a control valve, which comprises a rotating shaft seat, a rotating shaft, a rotating pipe, a reset spring and a rotating handle, wherein the rotating shaft seat is integrally formed with a control valve body, a rotating hole is arranged at the central position of the rotating shaft seat, a sealing bearing is fixedly arranged in the rotating hole, a limiting hole is arranged on the upper surface of the rotating shaft seat, and the rotating shaft is fixedly arranged in the bearing inner ring of the sealing bearing; set to by the pivot seat through the device with adjusting control valve inlet flow rate, the apparatus further comprises a rotating pipe, reset spring and turning handle combination constitution, and set up spacing hole through the upper surface at the pivot seat, and set up spacing arch at the lower surface of pivot, thereby imbed among spacing hole through spacing arch, thereby form relative locking to the pivot, thereby avoid leading to the pivot to take place to deflect owing to external mechanical vibration, thereby effectively avoid external mechanical vibration to influence the control accuracy of the inside air current of control valve.

Description

Device for adjusting air inlet flow rate of control valve

Technical Field

The utility model relates to a relevant technical field of control valve specifically is an adjustment control valve inlet flow rate device.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit. Generally constitute by actuating mechanism and valve, but the valve handle structure of traditional control valve is comparatively simple, and its valve body is under external mechanical oscillation's environment, and its valve handle easily takes place the rotation phenomenon to influence the control accuracy of control valve, for this reason, the utility model provides an adjust control valve inlet flow device is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjust control valve inlet flow rate device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a device for regulating control valve inlet flow rate, the device comprising:

the rotating shaft seat is integrally formed with the control valve body, a rotating hole is formed in the center of the rotating shaft seat, a sealing bearing is fixedly mounted in the rotating hole, and a limiting hole is formed in the upper surface of the rotating shaft seat;

the rotating shaft is fixedly arranged in a bearing inner ring of the sealed bearing, the lower end of the rotating shaft is connected with a valve core of the control valve, and the upper end of the rotating shaft is provided with a limiting head;

the rotating pipe is sleeved on the limiting head, a limiting plate is arranged in the inner cavity of the rotating pipe close to the lower end of the inner cavity of the rotating pipe, a through hole is formed in the limiting plate, the rotating shaft penetrates through the through hole to be arranged, and a limiting protrusion is arranged on the lower surface of the rotating shaft;

the reset spring is sleeved on the rotating shaft;

the rotating handle is fixedly connected with the upper end of the rotating pipe.

Preferably, the rotating handle is integrally formed with the outer side wall of the upper end of the rotating pipe.

Preferably, the limiting head is of a regular hexagon column structure, and the section size of the inner cavity of the rotating tube is matched with the section size of the limiting head.

Preferably, the upper end of the return spring is connected with the limiting head, and the lower end of the return spring is abutted to the upper surface of the limiting plate.

Preferably, spacing arch and rotating-tube integrated into one piece, and circumference such as spacing arch is provided with four, spacing hole circumference such as circumference setting on the pivot seat, and spacing hole sets up with the multiple quantity of four, and spacing hole and the corresponding setting of spacing arch.

Preferably, the lower side terminal edge position of the limiting protrusion is subjected to chamfering treatment.

When the limiting bulge is embedded into the limiting hole, the return spring is in a compressed state.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the device for adjusting the air inlet flow rate of the control valve is formed by combining a rotating shaft seat, a rotating shaft, a rotating pipe, a return spring and a rotating handle, a limiting hole is formed in the upper surface of the rotating shaft seat, and a limiting bulge is arranged on the lower surface of the rotating shaft, so that the limiting bulge is embedded into the limiting hole, the rotating shaft is relatively locked, the rotating shaft is prevented from deflecting due to external mechanical vibration, and the control accuracy of air flow in the control valve is effectively prevented from being influenced by the external mechanical vibration;

2. and through evenly setting up spacing hole with spacing bellied multiple volume to improve the control accuracy of control valve, and carry out the chamfer processing with spacing bellied downside terminal edge position department, thereby be convenient for spacing protruding butt joint insert to spacing among the hole.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a half sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic view showing the positions of the rotating shaft, the limiting head and the return spring of the present invention;

FIG. 5 is a schematic view of the structure of the rotary tube of the present invention;

fig. 6 is a schematic view of the structure of the rotating shaft seat of the present invention.

In the figure: the device comprises a shaft seat 1, a rotating shaft 2, a rotating pipe 3, a limiting head 4, a return spring 5, a rotating handle 6, a sealing bearing 7, a limiting hole 8, a limiting bulge 9 and a limiting plate 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides an adjusting control valve inlet flow rate device, adjusting control valve inlet flow rate device includes pivot seat 1, the pivot 2, the rotating tube 3, reset spring 5, the turning handle 6, pivot seat 1 and control valve body integrated into one piece, and the central point of pivot seat 1 puts and has seted up the turning bore, fixed mounting has sealed bearing 7 among its turning bore, and the upper surface of pivot seat 1 has seted up spacing hole 8, pivot 2 fixed mounting is among the bearing inner circle of sealed bearing 7, and the lower extreme of pivot 2 is connected with the case of control valve, the upper end of pivot 2 is provided with spacing head 4, the rotating tube 3 cover is established on spacing head 4, and the inner chamber of rotating tube 3 is provided with limiting plate 10 by the lower extreme, the through-hole has been seted up on limiting plate 10, and pivot 2 passes the through-hole and sets up, the lower surface of pivot 2 is provided with spacing arch 9, reset spring 5 cover is established on pivot 2, the upper end fixed connection of turning handle 6 and rotating tube 3, set up into by adjusting control valve by the device of control valve by pivot seat 1, the pivot 2, the pivot 3, reset spring 5 and the turning handle 6 is combined, and the mechanical control valve inlet flow rate device that sets up to avoid the external influence to the external mechanical control to the spacing hole to take place through spacing arch 9, thereby the spacing mechanical control to the spacing mechanical control of the spacing hole, thereby avoid the external influence of the external side to the spacing hole, thereby the external control 2, thereby the external control air flow, thereby it influences the external side, thereby the internal vibration to avoid the internal control to take place.

The rotating handle 6 and the outer side wall of the upper end of the rotating pipe 3 are integrally formed;

the limiting head 4 is of a regular hexagon column structure, and the section size of the inner cavity of the rotating tube 3 is matched with the section size of the limiting head 4;

the upper end of the return spring 5 is connected with the limiting head 4, and the lower end of the return spring 5 is abutted against the upper surface of the limiting plate 10;

the limiting bulges 9 and the rotating pipe 3 are integrally formed, four limiting bulges 9 and the like are arranged on the circumference, the limiting holes 8 are arranged on the rotating shaft seat 1 and the like, the limiting holes 8 are arranged by a multiple of four, the limiting holes 8 are correspondingly arranged with the limiting bulges 9, the lower side edge positions of the limiting bulges 9 are subjected to chamfering treatment, the limiting holes 8 are uniformly arranged by a multiple of the limiting bulges 9, so that the control precision of the control valve is improved, and the lower side edge positions of the limiting bulges 9 are subjected to chamfering treatment, so that the limiting bulges 9 are conveniently inserted into the limiting holes 8 in a butt joint manner;

when the limit bulge 9 is embedded into the limit hole 8, the return spring 5 is in a compressed state;

the working principle is as follows: set to by pivot seat 1 through the device with adjusting control valve inlet air flow rate, pivot 2, the rotating tube 3, reset spring 5 and turning handle 6 combination constitute, and set up spacing hole 8 through the upper surface at pivot seat 1, and set up spacing arch 9 at the lower surface of pivot 2, thereby imbed to spacing hole 8 in through spacing arch 9, thereby form relative locking to pivot 2, thereby avoid leading to pivot 2 to take place the deflection because external mechanical vibration, thereby effectively avoid external mechanical vibration to influence the control accuracy of the inside air current of control valve, in the time of the practical use, when needs rotate turning handle 6, through the upwards application of force to turning handle 6, thereby let spacing arch 9 break away from among spacing hole 8, then adjust the control valve velocity of flow through rotating handle 6, then through loosening turning handle 6, thereby let rotating tube 3 fall back through reset spring 5's effect, then the rethread finely tunes turning handle 6, let spacing arch 9 imbed to can accomplish the regulation among spacing hole 8.

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

Claims

1. The utility model provides a regulation control valve inlet flow rate device which characterized in that: the device for adjusting the intake flow rate of the control valve comprises:

the rotary valve comprises a rotary shaft seat (1), wherein the rotary shaft seat (1) and a control valve body are integrally formed, a rotary hole is formed in the center of the rotary shaft seat (1), a sealing bearing (7) is fixedly installed in the rotary hole, and a limiting hole (8) is formed in the upper surface of the rotary shaft seat (1);

the rotating shaft (2) is fixedly arranged in a bearing inner ring of the sealing bearing (7), the lower end of the rotating shaft (2) is connected with a valve core of the control valve, and a limiting head (4) is arranged at the upper end of the rotating shaft (2);

the rotating pipe (3) is sleeved on the limiting head (4), a limiting plate (10) is arranged in the inner cavity of the rotating pipe (3) close to the lower end of the inner cavity, a through hole is formed in the limiting plate (10), the rotating shaft (2) penetrates through the through hole to be arranged, and a limiting protrusion (9) is arranged on the lower surface of the rotating shaft (2);

the reset spring (5), the said reset spring (5) is set up on the spindle (2);

the rotating handle (6), the rotating handle (6) is fixedly connected with the upper end of the rotating pipe (3).

2. The apparatus of claim 1, wherein the apparatus further comprises: the rotating handle (6) and the outer side wall of the upper end of the rotating pipe (3) are integrally formed.

3. The apparatus of claim 1, wherein the apparatus further comprises: the limiting head (4) is of a regular hexagon column structure, and the section size of the inner cavity of the rotating tube (3) is identical with that of the limiting head (4).

4. The apparatus of claim 3, wherein the apparatus further comprises: the upper end of the reset spring (5) is connected with the limiting head (4), and the lower end of the reset spring (5) is abutted to the upper surface of the limiting plate (10).

5. The apparatus of claim 4, wherein the apparatus further comprises: spacing arch (9) and rotating-tube (3) integrated into one piece, and circumference such as spacing arch (9) is provided with four, circumference such as spacing hole (8) are on pivot seat (1) sets up, and spacing hole (8) set up with the multiple quantity of four, and spacing hole (8) and spacing arch (9) corresponding setting.

6. The apparatus of claim 5, wherein the apparatus further comprises: the lower side edge line position of the limiting bulge (9) is subjected to chamfering treatment.

7. The apparatus of claim 5, wherein the apparatus further comprises: when the limiting bulge (9) is embedded into the limiting hole (8), the return spring (5) is in a compressed state.