CN113108120B

CN113108120B - Automatic locking device with valve rod bending detection function for butterfly valve

Info

Publication number: CN113108120B
Application number: CN202110504347.XA
Authority: CN
Inventors: 潘泓璋
Original assignee: Henan Quanshun Flow Control Science & Technology Co ltd
Current assignee: Henan Quanshun Flow Control Science & Technology Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2022-11-25
Anticipated expiration: 2041-05-10
Also published as: CN113108120A

Abstract

The invention relates to the technical field of valves and discloses an automatic locking device with a valve rod bending detection function for a butterfly valve. This an automatic blocking device for butterfly valve has detection valve rod bending function, it removes to drive the clamp plate through the valve rod, clamp plate second connecting rod removes, the second connecting rod drives the slider and removes, the slider drives the baffle and removes release thrust spring, thrust spring drives the ejector pin and removes, the ejector pin promotes the carousel, the carousel is rotatory to be spacing behind the certain position, realize detecting automatic locking function in crooked back, prevent that the valve rod from continuing to use and causing bigger loss, reduce the equipment risk, improve production efficiency.

Description

Automatic locking device with valve rod bending detection function for butterfly valve

Technical Field

The invention relates to the technical field of valves, in particular to an automatic locking device with a valve rod bending detection function for a butterfly valve.

Background

The valve is a device for controlling the direction, pressure and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate by flowing or stopping a medium (liquid, gas or powder) in a pipe or equipment, and has functions of stopping, adjusting, guiding, preventing a reverse flow, stabilizing pressure, shunting or overflowing and releasing pressure. According to their function, they can be classified into shut-off valves, check valves, regulating valves, etc., wherein the shut-off valves are opened and closed. It is usually installed on the inlet and outlet of cold and heat sources, the inlet and outlet of equipments, and the branch line of pipeline (including vertical pipe), and can also be used as water drain valve and air release valve. Common shut-off valves include gate valves, stop valves, ball valves, butterfly valves, and the like.

The butterfly valve is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline medium, i.e. a valve whose closing member (valve clack or butterfly plate) is a circular disk and can be opened and closed by rotating around the valve shaft. The butterfly valve mainly comprises a valve body, a valve rod, a butterfly plate and a sealing ring. The valve body is cylindrical, the axial length is short, a butterfly plate is arranged in the valve body, the valve rod is an important part of the valve and is used for transmission, an actuating mechanism or a handle is connected to the valve rod, and the valve core is directly driven to move or rotate below the actuating mechanism or the handle so as to realize the opening and closing or adjusting function of the valve.

The valve rod is not only a moving part, a stressed part and a sealing part in the opening and closing process of the valve, the valve rod bears the acting force of tension, compression and torsion in the opening and closing process of the valve, the valve rod is impacted and corroded by a medium, and meanwhile, the valve rod and a filler have relative friction motion, so the valve rod is often bent in the long-time use process, the valve rod is inflexible after being bent and deformed, if the valve rod cannot be found and repaired in time or is continuously used forcibly, the valve rod is broken, even the subsequent equipment is seriously damaged, the production efficiency is influenced, and the production cost is increased.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the automatic locking device with the valve rod bending detection function for the butterfly valve, which has the advantages of automatically detecting bending and locking, reducing the risk of subsequent equipment and improving the production efficiency, and solves the problems of untimely discovery, high risk of the subsequent equipment and low production efficiency of the existing equipment.

(II) technical scheme

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an automatic blocking device that is used for butterfly valve to have detection valve rod bending function, the reciprocating motion valve comprises a valve rod, valve rod outer lane fixedly connected with disc, disc front center swing joint has the clamp plate, clamp plate outer lane fixedly connected with push rod, push rod outer lane fixedly connected with axle sleeve, axle sleeve both sides swing joint has first connecting rod, the one end swing joint that the axle sleeve was kept away from to first connecting rod has the second connecting rod, the one end swing joint that the clamp plate was kept away from to the push rod has the box that resets, the inside swing joint of box that resets has the bottom plate, the inside swing joint of bottom plate has the sloping block, the box outside fixedly connected with thrust spring resets, the one end swing joint that the clamp plate was kept away from to the second connecting rod has the slider, the relative one side fixedly connected with baffle of slider, disc outside swing joint has the ejector pin, the equal fixedly connected with axle bed in ejector pin both sides, disc back swing joint has the fixing base, fixing base outer lane swing joint has the tray, the fixing base outside just is located tray both sides fixedly connected with coil center swing joint and has magnet, the inboard fixedly connected with magnetic base of magnet, the inboard fixedly connected with magnetic pole of magnetic base, the one end fixedly connected with push pedal that the magnetic pole was kept away from the magnetic base is kept away from to the magnetic pole, front swing joint has the third connecting rod, the one end swing joint has the fixed block, the push pedal.

Preferably, the disc is internally provided with a groove matched with the ejector rod and the sliding block, and the groove is used for installing the ejector rod and the sliding block, so that the ejector rod and the sliding block can move conveniently.

Preferably, the thrust spring is in a compressed state and is used for pushing the mandril to move outwards.

Preferably, the front face of the fixing seat is provided with a groove matched with the disc and the turntable, and the groove is used for mounting the disc and the turntable and facilitating rotation of the disc and the turntable.

Preferably, the back of the rotary disc is provided with a limiting device for locking the valve rod to rotate.

Preferably, a groove matched with the ejector rod is formed in the inner side of the rotary table and used for enabling the ejector rod to push the rotary table to rotate.

Preferably, the fixing seat is internally provided with a groove matched with the magnet for mounting the magnet, so that the magnet is convenient to move.

(III) advantageous effects

Compared with the prior art, the invention provides an automatic locking device with a valve rod bending detection function for a butterfly valve, which has the following beneficial effects:

1. this an automatic blocking device for butterfly valve has detection valve rod bending function, it removes to drive the clamp plate through the valve rod bending, the in-process that the clamp plate removed drives push rod and second connecting rod removal, the in-process that the push rod removed drives the axle sleeve removal, the in-process that the axle sleeve removed drives first connecting rod removal, the in-process that first connecting rod removed drives the second connecting rod removal, the second connecting rod drives the slider and removes to both sides under the effect of clamp plate and first connecting rod, the in-process that the slider removed drives the baffle removal, release thrust spring after the baffle removes a certain position, thrust spring drives the ejector pin and outwards removes, the in-process that the ejector pin removed promotes the carousel rotatory, the carousel is spacing after rotatory a certain position, realize detecting crooked back automatic locking function, prevent that the valve rod from continuing to use and causing bigger loss, reduce the equipment risk, and improve production efficiency.

2. This an automatic blocking device for butterfly valve has detection valve rod bending function, it is rotatory to drive the fixed block through the rotatory in-process of carousel, the rotatory in-process of fixed block drives the third connecting rod and removes, the in-process that the third connecting rod removed drives the push pedal and inwards removes, the in-process that the push pedal removed drives the magnetic pole and removes, the in-process that the magnetic pole removed drives the magnetic base and removes, the in-process that the magnetic base removed drives magnet and removes, the coil is kept away from to the in-process that magnet removed, induced-current in the coil reduces gradually, when magnet thoroughly kept away from the coil, induced-current in the coil disappears completely, trigger alarm device after the induced-current in the coil disappears, remind the staff to overhaul as early as possible, realize automatic alarm function, prevent to appear and overhaul the major accident that untimely leads to, reduce the equipment risk, improve production efficiency.

Drawings

FIG. 1 is a schematic cross-sectional view of the front view structure of the present invention.

FIG. 2 is an enlarged view of a portion of FIG. 1.

FIG. 3 is an enlarged view of the portion B shown in FIG. 1 according to the present invention.

FIG. 4 is an enlarged view of the portion C in FIG. 2 according to the present invention.

In the figure: 1. a valve stem; 2. a disc; 3. pressing a plate; 4. a push rod; 5. a shaft sleeve; 6. a first link; 7. a second link; 8. a reset box; 9. a base plate; 10. a sloping block; 11. a thrust spring; 12. a slider; 13. a baffle plate; 14. a top rod; 15. a shaft seat; 16. a fixed seat; 17. a tray; 18. a coil; 19. a magnet; 20. a magnetic base; 21. a magnetic rod; 22. pushing the plate; 23. a third link; 24. a fixed block; 25. a turntable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-4, an automatic locking device with a function of detecting bending of a valve rod for a butterfly valve, comprising a valve rod 1, a disc 2 fixedly connected to an outer ring of the valve rod 1, a groove matched with an ejector rod 14 and a slide block 12 is formed inside the disc 2, the ejector rod 14 and the slide block 12 are used for installing, the ejector rod 14 and the slide block 12 are convenient to move, a press plate 3 is movably connected to a front center of the disc 2, a push rod 4 is fixedly connected to an outer ring of the press plate 3, a shaft sleeve 5 is fixedly connected to an outer ring of the push rod 4, a first connecting rod 6 is movably connected to two sides of the shaft sleeve 5, a second connecting rod 7 is movably connected to one end of the first connecting rod 6 far away from the shaft sleeve 5, a reset box 8 is movably connected to one end of the push rod 4 far away from the press plate 3, a bottom plate 9 is movably connected to the inside of the reset box 8, an inclined block 10 is movably connected to the inside of the bottom plate 9, a thrust spring 11 is fixedly connected to the outer side of the reset box 8, the thrust spring 11 is in a compressed state and is used for pushing the ejector rod 14 to move outwards, a slide block 12 is movably connected to one end of the second connecting rod 7 far away from the press plate 3, a baffle 13 is fixedly connected to one side of the slide block 13, the outer side of the disc 2, an ejector rod 14 is fixedly connected to be connected with an axle seat 15.

2 back swing joint of disc has fixing base 16, fixing base 16 openly offers the groove with disc 2 and carousel 25 looks adaptation, be used for installing disc 2 and carousel 25, make things convenient for disc 2 and carousel 25 rotatory, 16 outer lane swing joint of fixing base has tray 17, 16 outsides of fixing base just are located tray 17 both sides fixedly connected with

coil

18, 16 outsides of fixing base just are located coil 18 center swing joint and have

magnet

19, 16 inside grooves of seting up with magnet 19 looks adaptation of fixing base, be used for installing magnet 19, make things convenient for magnet 19 to remove, 19 inboard fixedly connected with magnet holder 20 of magnet, 20 inboard fixedly connected with magnet pole 21 of magnet holder, the one end fixedly connected with push pedal 22 that magnet holder 20 was kept away from to magnet pole 21, push pedal 22 openly swing joint has third connecting rod 23, the one end swing joint that push pedal 22 was kept away from to third connecting rod 23 has fixed block 24, the inboard fixedly connected with carousel 25 of fixed block 24, the carousel 25 back is provided with stop device, be used for locking valve rod 1 rotates, the inboard groove of seting up with 14 looks adaptation of carousel 25, it is rotatory to be used for ejector pin 14 promotion carousel 25.

The working principle is as follows: valve rod 1 is crooked to drive clamp plate 3 and is removed, the in-process that clamp plate 3 removed drives push rod 4 and second connecting rod 7 and removes, the in-process that push rod 4 removed drives axle sleeve 5 and removes, the in-process that axle sleeve 5 removed drives first connecting rod 6 and removes, the in-process that first connecting rod 6 removed drives second connecting rod 7 and removes, second connecting rod 7 drives slider 12 under the effect of clamp plate 3 and first connecting rod 6 and removes to both sides, the in-process that slider 12 removed drives baffle 13 and removes, release thrust spring 11 after baffle 13 removed a certain position, thrust spring 11 drives ejector pin 14 and outwards removes, the in-process that ejector pin 14 removed promotes carousel 25 rotatory, carousel 25 is spacing after rotatory to a certain position, realize detecting crooked back automatic locking function, prevent that valve rod 1 from continuing to use and causing bigger loss, reduce the equipment risk, and improve production efficiency.

The rotary table 25 drives the fixed block 24 to rotate in the rotating process, the fixed block 24 drives the third connecting rod 23 to move in the rotating process, the third connecting rod 23 drives the push plate 22 to move inwards in the moving process, the push plate 22 drives the magnetic rod 21 to move in the moving process, the magnetic base 20 is driven to move in the moving process of the magnetic rod 21, the magnet 19 is driven to move in the moving process of the magnetic base 20, the magnet 19 is far away from the coil 18 in the moving process, the induced current in the coil 18 is gradually reduced, when the magnet 19 is thoroughly far away from the coil 18, the induced current in the coil 18 completely disappears, and the alarm device is triggered after the induced current in the coil 18 disappears, so that a worker is reminded to overhaul as soon as possible, an automatic alarm function is realized, major accidents caused by untimely overhaul are prevented, the equipment risk is reduced, and the production efficiency is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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. An automatic locking device for a butterfly valve with a function of detecting bending of a valve rod comprises a valve rod (1), and is characterized in that: the outer ring of the valve rod (1) is fixedly connected with a disc (2), the center of the front face of the disc (2) is movably connected with a pressing plate (3), the outer ring of the pressing plate (3) is fixedly connected with a push rod (4), the outer ring of the push rod (4) is fixedly connected with a shaft sleeve (5), two sides of the shaft sleeve (5) are movably connected with first connecting rods (6), one ends of the first connecting rods (6) far away from the shaft sleeve (5) are movably connected with second connecting rods (7), one ends of the push rod (4) far away from the pressing plate (3) are movably connected with a reset box (8), the interior of the reset box (8) is movably connected with a bottom plate (9), the interior of the bottom plate (9) is movably connected with an inclined block (10), the outer side of the reset box (8) is fixedly connected with a thrust spring (11), one ends of the second connecting rods (7) far away from the pressing plate (3) are movably connected with a sliding block (12), one side, which is opposite to the sliding block (12) is fixedly connected with a baffle plate (13), the outer side of the disc (2) is movably connected with a push rod (14), two sides of the push rod (14) are both fixedly connected with shaft seats (15), the back face of the disc (2), the back face of the disc (16) is fixedly connected with a disc (16), the disc (17), the fixed seat (17), and two sides of the coil (17) are fixedly connected with a coil (18), a magnet (19) is movably connected to the outer side of the fixed seat (16) and located in the center of the coil (18), a magnetic seat (20) is fixedly connected to the inner side of the magnet (19), a magnetic rod (21) is fixedly connected to the inner side of the magnetic seat (20), a push plate (22) is fixedly connected to one end, far away from the magnetic seat (20), of the magnetic rod (21), a third connecting rod (23) is movably connected to the front face of the push plate (22), a fixed block (24) is movably connected to one end, far away from the push plate (22), of the third connecting rod (23), and a rotary disc (25) is fixedly connected to the inner side of the fixed block (24);

a groove matched with the ejector rod (14) and the sliding block (12) is formed in the disc (2);

the thrust spring (11) is in a compressed state;

the front surface of the fixed seat (16) is provided with a groove matched with the disc (2) and the turntable (25);

the back of the rotary table (25) is provided with a limiting device;

a groove matched with the ejector rod (14) is formed in the inner side of the rotary disc (25);

and a groove matched with the magnet (19) is formed in the fixed seat (16).