CN108413105B

CN108413105B - Improved regulating valve

Info

Publication number: CN108413105B
Application number: CN201810162237.8A
Authority: CN
Inventors: 王宝根; 徐燕飞
Original assignee: Haining Cuizhi Intelligent Robot Co ltd
Current assignee: Yongkang shudakang Intelligent Technology Co.,Ltd.
Priority date: 2018-02-26
Filing date: 2018-02-26
Publication date: 2021-01-22
Anticipated expiration: 2038-02-26
Also published as: CN108413105A

Abstract

The invention relates to an improved regulating valve, and belongs to the technical field of valves. It comprises a valve body, a self-locking device and a power device; the self-locking device comprises a self-locking cylinder and a connecting rod mechanism, wherein the connecting rod mechanism is arranged in the self-locking cylinder and can be switched between two dead points under the driving of the power device; the lower end of the connecting rod mechanism is connected with the valve body to drive the valve body to be in an open or closed state; the valve body is in full-sealing connection with the self-locking device. The invention can control the use state of the regulating valve through remote operation, thereby realizing intellectualization; by utilizing the principle of physical dead points, the structure has a self-locking function and good stability; a totally enclosed structure is arranged between the valve body and the self-locking device, so that the performance of the regulating valve is stable; simple structure, and convenient production, manufacture and operation.

Description

Improved regulating valve

Technical Field

The invention relates to an improved regulating valve, and belongs to the technical field of valve manufacturing.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

Most of the existing valves change the use state of the valve by manually rotating the valve body, and the valves can only meet simple use requirements, but cannot be used when the use requirements are relatively high. The valve can be used in a wider range, and the valve is usually controlled by converting between electrical signals and mechanical signals through the cooperation of various electrical elements. However, the valves of this type use too many components and parts, and have complex structures, which causes inconvenience in production and high cost, and meanwhile, the problems of poor induction and easy influence by external environment are very easy to occur in the transmission of electric signals, and the reaction lag between the electric signals and mechanical action is also existed; meanwhile, the valve needs to be continuously electrified to maintain the state, and energy is consumed greatly.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide an improved regulating valve which can realize remote control and has simple and reliable structure.

The technical scheme adopted by the invention for solving the problems is as follows: an improved regulating valve comprises a valve body, a self-locking device and a power device; the self-locking device comprises a self-locking cylinder and a connecting rod mechanism, wherein the connecting rod mechanism is arranged in the self-locking cylinder and can be switched between two dead points under the driving of the power device; the lower end of the connecting rod mechanism is connected with the valve body to drive the valve body to be in an open or closed state; the valve body is in full-sealing connection with the self-locking device.

The connecting rod mechanism can generate corresponding actions under the driving of the power device, so that a dead point state can be achieved at the closing point and the opening point of the valve body, and when the connecting rod mechanism is in the dead point state, the self-locking state of the connecting rod mechanism cannot be changed regardless of the hydraulic pressure in the valve body, so that the stability of the closing state and the opening state of the valve body is ensured. When the valve body reaches a stable state, the state of the valve body can be maintained without continuous output of a power device, and the output and waste of energy are greatly saved. The state of the whole regulating valve can be controlled by controlling the power device, so that the remote control of the regulating valve can be realized. Meanwhile, the valve body is connected with the self-locking device in a full-sealing mode, so that internal parts cannot be lost even though the internal parts fall off.

Further, the self-locking cylinder comprises a cylinder body, a self-locking base and a guide positioning block; the connecting rod mechanism comprises a suction pull rod, a first self-locking rod, a second self-locking rod, a linkage rod and a pressure rod; the second self-locking rod is in a two-section type with a bevel; one end of the self-locking rod I is hinged with the suction pull rod, and the other end of the self-locking rod I is hinged with one end of the self-locking rod II; one end of the linkage rod is hinged with the folding angle of the self-locking rod II, and the other end of the linkage rod is hinged with one end of the pressure rod; the guide positioning block is fixed inside the cylinder body through the self-locking base and comprises a positioning point and a guide sleeve, the other end of the self-locking rod II is hinged with the positioning point, and a rod body of the pressure rod penetrates through the guide sleeve.

The power device generates acting force through the suction rod, so that the whole connecting rod mechanism is driven to act.

When the suction pull rod is acted to move upwards, the self-locking rod I moves upwards under the driving of the suction pull rod, the self-locking rod II rotates around the positioning point under the driving of the self-locking rod I, meanwhile, the folding angle of the self-locking rod II moves upwards to drive the pressure rod to move upwards, and the pressure rod can only keep consistent with the movement direction of the suction pull rod along the guide sleeve under the action of the guide sleeve. When the suction pull rod moves to a certain position, the connecting rod mechanism reaches the top dead center, at the moment, even if the power device does not apply acting force any more, the pressure rod can still be positioned at the topmost end of the relative position, and the valve body is in an open state.

When the suction pull rod is acted to move downwards, the first self-locking rod moves downwards under the driving of the suction pull rod, the second self-locking rod rotates around the positioning point under the driving of the first self-locking rod, and meanwhile, the folded angle of the second self-locking rod moves upwards to drive the pressing rod to move downwards. When the suction pull rod moves to a certain position, the connecting rod mechanism reaches a bottom dead center, at the moment, the pressure rod can still be positioned at the bottommost end of the relative position even if the power device does not apply acting force any more, and the valve body is in a closed state.

Further, the power device comprises a control mechanism and a magnetic mechanism, the control mechanism can control the running state of the magnetic mechanism, and the magnetic mechanism can drive the connecting rod mechanism to move. The magnetic force mechanism can generate a corresponding magnetic field when being electrified, different acting forces can be generated on the connecting rod mechanism by controlling the electrifying condition of the magnetic force mechanism through the control mechanism, and the state of the connecting rod mechanism is driven to change, so that the using state of the regulating valve is changed.

Further, the control mechanism comprises a power supply and a switch, and the magnetic mechanism comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve which are controlled by the switch. The first electromagnetic valve and the second electromagnetic valve are arranged on two sides of the link mechanism in parallel, and the third electromagnetic valve and the fourth electromagnetic valve are arranged below the first electromagnetic valve and the second electromagnetic valve in parallel. The current directions of the first electromagnetic valve and the second electromagnetic valve are consistent, the current directions of the third electromagnetic valve and the fourth electromagnetic valve are consistent, and the current directions of the first electromagnetic valve and the second electromagnetic valve are opposite to the current directions of the third electromagnetic valve and the fourth electromagnetic valve, so that the magnetic force direction caused by the first electromagnetic valve and the second electromagnetic valve is opposite to the magnetic force direction caused by the third electromagnetic valve and the fourth electromagnetic valve, the acting force on the link mechanism is also opposite, the action of the remote control link mechanism can be realized through the electrifying condition of the switch control electromagnetic valve, and the remote control regulating valve is realized.

Further, the valve body comprises a body and a support, and the support is vertically connected with the self-locking cylinder and the body; the body comprises a water inlet pipe and a water outlet pipe which are connected end to end, and an upper valve seat and a lower valve seat are arranged at the connection part; and a one-way valve is arranged at the outlet of the water outlet pipe.

The support is internally provided with a through hole for the connecting rod mechanism to pass through, and a sealing ring is arranged between the through hole and the connecting rod mechanism for sealing. The support and the body are connected through bolts, and a sealing ring is arranged at the joint. The lower end of the connecting rod mechanism is fixedly connected with the upper valve seat, and the lower valve seat is arranged right below the upper valve seat. The one-way valve can ensure that the flow direction of the liquid is kept uniform.

Further, go up the disk seat and meet for the cambered surface between the disk seat down, the laminating degree is higher, and has reduced the wear rate, has increased the life of governing valve.

Further, the surfaces of the upper valve seat and the lower valve seat and the inner walls of the water inlet pipe and the water outlet pipe are coated with ceramic coatings, so that the places where the liquids flow through have high corrosion resistance and wear resistance.

Furthermore, the valve body is also provided with a manhole, and the regulating valve can be repaired properly through the manhole.

Compared with the prior art, the invention has the following advantages and effects: the invention can control the use state of the regulating valve through remote operation, thereby realizing intellectualization; by utilizing the principle of physical dead points, the structure has a self-locking function and good stability; a totally enclosed structure is arranged between the valve body and the self-locking device, so that the performance of the regulating valve is stable; simple structure, and convenient production, manufacture and operation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention (without a control mechanism, and with the link mechanism in a bottom dead center state).

In the drawings: the water-saving valve comprises a water inlet pipe 1, a water outlet pipe 2, an upper valve seat 3, a lower valve seat 4, a one-way valve 5, a manhole 6, a support 7, a self-locking cylinder 8, a link mechanism 9, a cylinder body 10, a self-locking base 11, a guide positioning block 12, a suction pull rod 13, a self-locking rod I14, a self-locking rod II 15, a linkage rod 16, a pressure rod 17, a guide groove 18, an electromagnetic valve I19, an electromagnetic valve II 20, an electromagnetic valve III 21 and an electromagnetic valve IV 22.

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.

Referring to fig. 1, the present embodiment includes a valve body, a self-locking device, and a power device.

The valve body comprises a body and a seat 7.

The body comprises a water inlet pipe 1 and a water outlet pipe 2 which are connected end to end, and an upper valve seat 3 and a lower valve seat 4 are arranged at the connection part. The surfaces of the upper valve seat 3 and the lower valve seat 4 and the inner walls of the water inlet pipe 1 and the water outlet pipe 2 are coated with ceramic coatings, so that the places where the liquids flow through have high corrosion resistance and wear resistance. One end of the upper valve seat 3, which is in contact with the lower valve seat 4, is of a hemispherical structure, and the other end of the upper valve seat is of a cylinder. The middle of the lower valve seat 4 is provided with a through hole for liquid to pass through, the upper surface of the lower valve seat 4 contacting with the upper valve seat 3 is in an inwards concave arc shape, and the arc surface of the lower valve seat 4 is completely attached to the semi-sphere arc surface at the lower end of the upper valve seat 3. And a sealing ring is arranged at the joint of the lower valve seat 4 and the water inlet pipe 1. The outlet of the water outlet pipe 2 is provided with a one-way valve 5, which can ensure the uniform flow direction of the liquid. The lower extreme at the body is equipped with access hole 6, and the drill way department of access hole 6 is equipped with screw cooperation sealing washer and forms sealedly, can advance suitable repair work to the regulating valve through access hole 6.

The support 7 vertically supports the self-locking device and the body. The support 7 is connected with the body through a bolt, and a sealing ring is arranged at the joint.

The self-locking device comprises a self-locking cylinder 8 and a link mechanism 9.

The self-locking cylinder 8 comprises a cylinder body 10, a self-locking base 11 and a guide positioning block 12. The lower end of the cylinder body 10 is connected with the upper end of the support 7, a sealing structure is formed by matching, a through hole is formed in the center of the support 7 and can be used for the connecting rod mechanism 9 to penetrate through, and a sealing ring is arranged between the through hole and the connecting rod mechanism 9 for sealing.

One end of the guide positioning block 12 is fixed inside the cylinder body 10 through the self-locking base 11, the other end of the guide positioning block comprises a positioning point and a guide sleeve, and the relative positions of the center of the positioning point and the center of the guide sleeve are on the same vertical line.

The link mechanism 9 comprises a suction pull rod 13, a first self-locking rod 14, a second self-locking rod 15, a linkage rod 16 and a pressure rod 17. The suction pull rod 13, the first self-locking rod 14, the linkage rod 16 and the pressure rod 17 are all straight rod-shaped, and the second self-locking rod 15 is in a two-section type with a folding angle. One end of the self-locking rod I14 is hinged with the suction pull rod 13, and the other end is hinged with one end of the self-locking rod II 15. One end of the linkage rod 16 is hinged with the folding angle of the second self-locking rod 15, and the other end is hinged with one end of the pressure rod 17. The other end of the self-locking rod II 15 is hinged with the positioning point, the rod body of the pressure rod 17 penetrates through the guide sleeve, and the lower end of the pressure rod is fixedly connected with the upper valve seat 3.

The top end of the cylinder body 10 is provided with a guide groove 18, and one end of the suction pull rod 13 far away from the self-locking rod I14 is led into the guide groove 18, so that the suction pull rod 13 can only move along the guide groove 18 when moving.

The power device comprises a control mechanism and a magnetic mechanism.

The magnetic mechanism comprises a first electromagnetic valve 19, a second electromagnetic valve 20, a third electromagnetic valve 21 and a fourth electromagnetic valve 22 which are controlled by switches. The first solenoid valve 19 and the second solenoid valve 20 are arranged on two sides of the guide groove 18 in parallel and side by side, and the third solenoid valve 21 and the fourth solenoid valve 22 are arranged below the first solenoid valve 19 and the second solenoid valve 20 in parallel and side by side. The current directions of the first solenoid valve 19 and the second solenoid valve 20 are the same, the current directions of the third solenoid valve 21 and the fourth solenoid valve 22 are the same, and the current directions of the first solenoid valve 19, the second solenoid valve 20, the third solenoid valve 21 and the fourth solenoid valve 22 are opposite, so that the magnetic force direction caused by the first solenoid valve 19 and the second solenoid valve 20 is opposite to the magnetic force direction caused by the third solenoid valve 21 and the fourth solenoid valve 22, and the acting force on the pull rod 13 is also opposite.

The control mechanism comprises a power supply and a switch, the power supply provides power for the magnetic mechanism, and the switch controls the power-on conditions of the first electromagnetic valve 19, the second electromagnetic valve 20, the third electromagnetic valve 21 and the fourth electromagnetic valve 22, so that remote control is realized.

The linkage mechanism 9 can be driven by the power device to generate corresponding actions, so that a dead point state can be achieved at the closing point and the opening point of the valve body.

When the suction pull rod 13 is acted to move upwards, the self-locking rod I14 moves upwards under the driving of the suction pull rod 13, the self-locking rod II 15 rotates around the positioning point under the driving of the self-locking rod I14, meanwhile, the folding angle of the self-locking rod II 15 moves upwards to drive the linkage rod 16 to move upwards, so that the pressure rod 17 is driven to move upwards, and the pressure rod 17 can only keep the same direction with the movement direction of the suction pull rod 13 along the guide sleeve under the action of the guide sleeve. When the suction rod 13 moves to a certain position, the link mechanism 9 reaches the top dead center, at this time, even if the power device does not apply any force any more, the pressure rod 17 can still be at the top end of the relative position, and the valve body is in an open state.

When the suction pull rod 13 is acted to move downwards, the self-locking rod I14 moves downwards under the driving of the suction pull rod 13, the self-locking rod II 15 rotates around the positioning point under the driving of the self-locking rod I14, and meanwhile, the downward movement of the folding angle of the self-locking rod II 15 drives the linkage rod 16 to move downwards, so that the pressing rod 17 is driven to move downwards. When the suction pull rod 13 moves to a certain position, the link mechanism 9 reaches the bottom dead center, at this time, even if the power device does not apply an acting force any more, the pressure rod 17 can still be at the bottom end of the relative position, and the valve body is in a closed state.

Although the present invention has been described with reference to the above embodiments, it should be understood that the scope of the present invention is not limited thereto, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims

1. An improve governing valve, includes the valve body, its characterized in that: the device also comprises a self-locking device and a power device; the self-locking device comprises a self-locking cylinder and a connecting rod mechanism, wherein the connecting rod mechanism is arranged in the self-locking cylinder and can be switched between two dead points under the driving of the power device; the lower end of the connecting rod mechanism is connected with the valve body to drive the valve body to be in an open or closed state; the valve body is in full-sealing connection with the self-locking device, and the self-locking cylinder comprises a cylinder body, a self-locking base and a guide positioning block; the connecting rod mechanism comprises a suction pull rod, a first self-locking rod, a second self-locking rod, a linkage rod and a pressure rod; the second self-locking rod is in a two-section type with a bevel; one end of the self-locking rod I is hinged with the suction pull rod, and the other end of the self-locking rod I is hinged with one end of the self-locking rod II; one end of the linkage rod is hinged with the folding angle of the self-locking rod II, and the other end of the linkage rod is hinged with one end of the pressure rod; the power device comprises a control mechanism and a magnetic mechanism, the control mechanism can control the running state of the magnetic mechanism, the magnetic mechanism can drive the connecting rod mechanism to move, the valve body comprises a body and a support, and the support vertically supports the self-locking cylinder and the body; the body comprises a water inlet pipe and a water outlet pipe which are connected end to end, and an upper valve seat and a lower valve seat are arranged at the connection part; and a one-way valve is arranged at the outlet of the water outlet pipe.

2. The improved regulator valve of claim 1 wherein: the control mechanism comprises a power supply and a switch, and the magnetic mechanism comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve which are controlled by the switch.

3. The improved regulator valve of claim 1 wherein: the upper valve seat and the lower valve seat are connected through an arc surface.

4. The improved regulator valve of claim 1 wherein: the surfaces of the upper valve seat and the lower valve seat and the inner walls of the water inlet pipe and the water outlet pipe are coated with ceramic coatings.

5. The improved regulator valve of claim 1 wherein: and the valve body is also provided with an access hole.