CN212718301U

CN212718301U - Electromagnetic control valve for limiting excessive flow of pipeline

Info

Publication number: CN212718301U
Application number: CN202021899891.6U
Authority: CN
Inventors: 王海峰
Original assignee: Shanghai Guanchi Technology Co ltd
Current assignee: Shanghai Guanchi Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-03-16
Anticipated expiration: 2030-09-03

Abstract

The utility model belongs to the technical field of the solenoid valve, specifically be an electromagnetic control valve for excessive restriction of pipeline flow, including valve body, piston chamber, piston, position sleeve, fixed cover, movable rod, screw rod and runner, the inside of valve body is equipped with the piston chamber, the activity of piston intracavity is equipped with the piston, be equipped with the position sleeve that extends to the piston in the valve body, movable sleeve is equipped with fixed cover in the position sleeve, the activity is equipped with the movable rod in the fixed cover, the fixed suit of movable rod is on the piston, the screw rod has been cup jointed in the bottom activity of fixed cover, the bottom of screw rod is run through the valve body and the welding has the runner, the bottom of fixed cover both sides outwards extends and forms the stopper. This electromagnetic control valve is used in excessive restriction of pipeline flow, under the outage circumstances, the accessible rotates the runner and drives the screw rod screw in or unscrew the valve body to the pulling or promote the piston at piston intracavity elevating movement, and then carries out manual opening and close to this solenoid valve, makes things convenient for the use of this solenoid valve.

Description

Electromagnetic control valve for limiting excessive flow of pipeline

Technical Field

The utility model relates to a solenoid valve technical field especially relates to an electromagnetic control valve is used in excessive restriction of pipeline flow.

Background

The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured.

However, the conventional electromagnetic control valve is inconvenient to manually open and close under the condition of power failure, and brings great inconvenience to the normal use of the electromagnetic valve.

In order to solve the problems, the application provides an electromagnetic control valve for limiting the excessive flow of a pipeline.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides an excessive restriction of pipeline flow is with electromagnetic control valve has the characteristics of being convenient for manually opening and close.

(II) technical scheme

In order to solve the technical problem, the utility model provides an electromagnetic control valve for limiting the excessive flow of a pipeline, which comprises a valve body, a piston cavity, a piston, a positioning sleeve, a fixed sleeve, a movable rod, a screw rod and a runner;

the inside of valve body is equipped with the piston chamber, piston intracavity activity is equipped with the piston, be equipped with the position sleeve that extends to the piston in the valve body, the movable sleeve is equipped with fixed cover in the position sleeve, the activity is equipped with the movable rod in the fixed cover, the fixed suit of movable rod is on the piston, the bottom activity of fixed cover has cup jointed the screw rod, the bottom of screw rod runs through the valve body and the welding has the runner.

Preferably, the bottoms of the two sides of the fixing sleeve extend outwards to form a limiting block.

Preferably, vertical limiting grooves are formed in two sides of the inner wall of the positioning sleeve.

Preferably, the limiting block on the outer wall of the fixed sleeve is movably arranged in a limiting groove formed in the inner wall of the positioning sleeve.

Preferably, the non-return valve seat is installed at the inlet of the valve body, a swing arm is hinged to the inlet of the valve body through a shaft in a movable mode, a valve clack is fixedly installed on the swing arm, and the valve clack is movably connected with the non-return valve seat.

Preferably, a sealing ring is arranged at the joint of the check valve seat and the valve body.

Preferably, the screw is sleeved on the valve body in a threaded manner, and the end part of the screw is provided with a T-shaped limiting ring movably sleeved in the fixed sleeve.

The above technical scheme of the utility model has following profitable technological effect:

the electromagnetic control valve for limiting the excessive flow of the pipeline can drive the screw to be screwed in or out of the valve body by rotating the rotating wheel under the condition of power failure, so that the piston is pulled or pushed to move up and down in the piston cavity, the electromagnetic valve is manually opened and closed, and the electromagnetic valve is convenient to use; the arrangement of the movable rod and the fixed sleeve improves the stability of the piston in the motion process; meanwhile, the electromagnetic control valve for limiting the excessive flow of the pipeline can perform non-return on the conveyed fluid by arranging the non-return valve seat and the valve clack at the inlet of the valve body, and has stronger functionality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the check valve seat and the valve flap of the present invention;

FIG. 3 is a schematic view of the valve flap structure of the present invention;

fig. 4 is a sectional view of the fixing sleeve structure of the present invention.

Reference numerals:

1. a valve body; 2. a piston cavity; 3. a piston; 4. a positioning sleeve; 5. fixing a sleeve; 6. a movable rod; 7. a screw; 8. a rotating wheel; 9. a limiting block; 10. a limiting groove; 11. a check valve seat; 12. swinging arms; 13. a valve flap; 14. and (5) sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1, the present invention provides a technical solution: an electromagnetic control valve for limiting excess flow of a pipeline comprises a valve body 1, a piston cavity 2, a piston 3, a positioning sleeve 4, a fixed sleeve 5, a movable rod 6, a screw rod 7 and a rotating wheel 8.

The inside of valve body 1 is equipped with

piston chamber

2, 2 internalization in the piston chamber is equipped with piston 3, be equipped with the position sleeve 4 that extends to piston 3 in the valve body 1, 4 internalization covers of position sleeve are equipped with fixed

cover

5, 5 internalization of fixed cover is equipped with movable rod 6, the fixed suit of movable rod 6 is on piston 3.

In this embodiment, when the piston 3 goes up and down, the valve body 1 is matched to open and close, the movable rod 6 and the fixed sleeve 5 are utilized, the piston 3 is guided and limited while the lifting movement of the piston 3 is not influenced, and the stability of the piston 3 in the using process is ensured.

The bottom of the fixed sleeve 5 is movably sleeved with a screw 7, and the bottom of the screw 7 penetrates through the valve body 1 and is welded with a rotating wheel 8.

When the electromagnetic valve is not normally opened or closed when power is off, the rotating wheel 8 is rotated to drive the screw 7 to be screwed in or out of the valve body 1, so that the fixed sleeve 5 is pushed or pulled to move up and down, and the piston 3 at the end part of the movable rod 6 is pushed or pulled to move up and down, thereby achieving the purpose of opening and closing the electromagnetic valve.

It should be noted that the screw 7 is threadedly sleeved on the valve body 1, and a T-shaped limiting ring movably sleeved in the fixing sleeve 5 is arranged at the end of the screw 7.

Utilize "T" style of calligraphy spacing ring of screw rod 7 tip, play the purpose of connecting screw rod 7 and fixed cover 5, make fixed cover 5 along with screw rod 7 synchronous elevating movement, simultaneously, when screw rod 7 is rotatory, avoid fixed cover 5 to take place rotatoryly.

As shown in fig. 1 and 4, the bottoms of the two sides of the fixed sleeve 5 extend outwards to form limit blocks 9, the two sides of the inner wall of the positioning sleeve 4 are provided with vertical limit grooves 10, and the limit blocks 9 on the outer wall of the fixed sleeve 5 are movably arranged in the limit grooves 10 formed in the inner wall of the positioning sleeve 4.

The cooperation of the limiting block 9 on the fixing sleeve 5 and the limiting groove 10 formed on the inner wall of the positioning sleeve 4 can limit the movement of the fixing sleeve 5 in the positioning sleeve 4, and the fixing sleeve 5 is prevented from rotating.

As shown in fig. 2-3, a check valve seat 11 is installed at an inlet of the valve body 1, a swing arm 12 is movably hinged at the inlet of the valve body 1 through a shaft, a valve flap 13 is fixedly installed on the swing arm 12, and the valve flap 13 is movably connected with the check valve seat 11.

By utilizing the matching of the check valve seat 11 and the valve clack 13, the fluid conveyed by the electromagnetic valve can be checked, so that the electromagnetic valve has the function of a check valve and has stronger functionality.

And a sealing ring 14 is arranged at the joint of the check valve seat 11 and the valve body 1.

The seal ring 14 seals the mounting position of the check valve seat 11 and the valve body 1.

The utility model discloses a theory of operation and use flow: under the normal use condition, the fluid impacts the valve clack 13 to drive the swing arm 12 to swing, so that the valve clack 13 is driven to rotate, the check valve seat 11 is opened, and when the fluid flows back, the fluid flows back to impact the valve clack 13 to drive the valve clack 13 to rotate and then close the check valve seat 11, so that the fluid is prevented from further flowing back; when the electromagnetic valve is not opened or closed when power is off, the rotating wheel 8 is rotated to drive the screw 7 to be screwed in or out of the valve body 1, so that the fixed sleeve 5 is pushed or pulled to move up and down, and the piston 3 at the end part of the movable rod 6 is pushed or pulled to move up and down, and the purpose of opening or closing the electromagnetic valve is achieved.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. An electromagnetic control valve for limiting excessive flow of a pipeline is characterized by comprising a valve body (1), a piston cavity (2), a piston (3), a positioning sleeve (4), a fixed sleeve (5), a movable rod (6), a screw (7) and a rotating wheel (8);

the inside of valve body (1) is equipped with piston chamber (2), piston chamber (2) internalization is equipped with piston (3), be equipped with position sleeve (4) that extend to piston (3) in valve body (1), position sleeve (4) internalization cover is equipped with fixed cover (5), fixed cover (5) internalization is equipped with movable rod (6), the fixed suit of movable rod (6) is on piston (3), screw rod (7) have been cup jointed in the bottom activity of fixed cover (5), the bottom of screw rod (7) is run through valve body (1) and the welding has runner (8).

2. The electromagnetic control valve for limiting excessive flow of a pipeline according to claim 1, wherein the bottoms of both sides of the fixed sleeve (5) are extended outwards to form a limiting block (9).

3. The electromagnetic control valve for limiting the excessive flow of the pipeline according to claim 1, wherein two sides of the inner wall of the positioning sleeve (4) are provided with vertical limiting grooves (10).

4. The electromagnetic control valve for limiting the excessive flow of the pipeline as claimed in claim 2, wherein the limiting block (9) on the outer wall of the fixed sleeve (5) is movably arranged in a limiting groove (10) formed on the inner wall of the positioning sleeve (4).

5. The electromagnetic control valve for limiting the excessive flow of the pipeline according to claim 1, wherein a check valve seat (11) is installed at the inlet of the valve body (1), a swing arm (12) is movably hinged at the inlet of the valve body (1) through a shaft, a valve flap (13) is fixedly installed on the swing arm (12), and the valve flap (13) is movably connected with the check valve seat (11).

6. The electromagnetic control valve for limiting the excess flow of a pipeline according to claim 5, characterized in that a sealing ring (14) is arranged at the joint of the check valve seat (11) and the valve body (1).

7. The electromagnetic control valve for limiting the excessive flow of the pipeline according to claim 1, wherein the screw (7) is sleeved on the valve body (1) in a threaded manner, and a T-shaped limiting ring movably sleeved in the fixing sleeve (5) is arranged at the end part of the screw (7).