CN213744990U - Electric flange knife type gate valve - Google Patents

Abstract

The utility model discloses an electric flange knife gate valve, which relates to the technical field of knife gate valves, and comprises a valve seat, wherein a flashboard is fixedly arranged between two valve seats, a first groove is longitudinally arranged at the top of the flashboard, a choke block is arranged in the first groove, a second groove is arranged at the inner side of the first groove, two sliding chutes are respectively and longitudinally arranged at two sides of the second groove, a second sliding block is respectively arranged in the two sliding chutes, a buffer mechanism is fixedly arranged at the bottom in the second sliding chutes, the buffer mechanism is fixedly connected with the second sliding block, an electric push rod is respectively and fixedly arranged at the top of the two sliding blocks, a mounting block is fixedly arranged at the top of the electric push rod, a rotating rod is rotatably arranged between the two mounting blocks, brush hairs are arranged on the rotating rod, the utility model solves the problem that when the gate valve is closed, medium impurities adhered on, resulting in poor sealing performance and causing problems with valve leakage.

Description

Electric flange knife type gate valve

Technical Field

The utility model relates to a sword type gate valve technical field especially relates to an electronic flange sword type gate valve.

Background

The opening and closing piece of the knife gate valve is a flashboard, the movement direction of the flashboard is vertical to the fluid direction, and the manual knife gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. The gate plate has two sealing surfaces, the two sealing surfaces of the gate plate valve in the most common mode form a wedge shape, the wedge angle is different with the valve parameter, usually 50, the gate plate of the wedge type knife gate valve can be made into a whole, which is called a rigid gate plate, or can be made into a gate plate capable of generating micro deformation, so as to improve the manufacturability and make up the deviation of the sealing surface angle in the processing process, the gate plate is called an elastic gate plate, most knife gate valves are forcibly sealed, namely the gate plate is forced to press towards a valve seat by external force when the valve is closed, so as to ensure the sealing property of the sealing surface, the valve is generally horizontally installed in a pipeline, the electric knife gate valve has the advantages of simple and compact structure, reasonable design, light material saving, reliable sealing, convenient and flexible operation, small volume, smooth channel, small flow resistance, light weight, easy installation, easy disassembly and the like, and can work pressure of 1.0MPa-2.5MPa, the operation is normal under the condition of-29-650 ℃. The gate plate of the knife gate valve has a shearing function, can scrape off adhesive on a sealing surface and automatically remove sundries, and the stainless steel gate plate can prevent sealing leakage caused by corrosion.

At present, plate valve is because of its simple structure, and the characteristics such as the full passage is opened, flow area is big, no flow resistance when opening, and the wide use is on various fluid medium's pipeline, but the gate valve is when closing, and the medium impurity of adhesion on sealed face receives the flashboard extrusion to damage the sealing washer easily, leads to sealing performance poor, arouses the valve to leak, consequently the utility model provides an electric flange sword type gate valve solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electronic flange sword type gate valve to the not enough of prior art existence, concrete technical scheme as follows:

an electric flange knife type gate valve comprises valve seats, wherein two valve seats are arranged, a flashboard is fixedly arranged between the two valve seats, the top of the flashboard is longitudinally provided with a first groove, a choke block is arranged in the first groove, the inner side of the first groove is provided with a second groove, the two sides of the second groove are respectively and longitudinally provided with a second sliding groove, a second sliding block is respectively arranged in the two sliding grooves, the second sliding block is in sliding fit with the second sliding groove, the bottom in the second sliding groove is fixedly provided with a buffer mechanism, the buffer mechanism is fixedly connected with the second sliding block, the top of the two sliding blocks is respectively and fixedly provided with an electric push rod, the top of the electric push rod is fixedly provided with an installation block, a rotating rod is rotatably arranged between the two installation blocks, the rotating rod is provided with brush hairs, the outer side of one installation block is fixedly provided with a waterproof motor box, and a waterproof motor is arranged in the waterproof motor box, the output end of the waterproof motor penetrates through one of the mounting blocks and is fixedly connected with the rotating rod, a distance sensor is fixedly arranged at the lower end in the second groove, the distance sensor is electrically connected with a distance controller, and the distance controller is electrically connected with the electric push rod.

Preferably, the mounting block two is fixedly mounted above the mounting block one through screws.

Preferably, the first sliding blocks are fixedly arranged on two sides of the flow blocking block respectively, the two first sliding blocks are arranged in the first sliding grooves respectively, the first sliding blocks are in sliding fit with the first sliding grooves, and the two sliding grooves are longitudinally arranged on two sides in the first groove respectively.

Preferably, the fixed installation piece one that is provided with in flashboard top, installation piece two is installed to installation piece one top, the fixed loop bar that is provided with in two tops of installation piece, the loop bar top is rotated and is provided with the valve handle, the valve handle is gone up the screw thread and is inserted and be equipped with the pull rod, the pull rod bottom runs through in proper order installation piece two, installation piece rotate with the bearing in the lump and be connected, the bearing is fixed to be set up the top of choked flow piece.

Preferably, the buffer mechanism comprises a telescopic rod, the other end of the telescopic rod is fixedly connected with the second sliding block, and the telescopic rod is sleeved with a compression spring.

Preferably, the surface of the compression spring is coated with antirust paint.

Compared with the prior art, the utility model beneficial effect who has is:

1. through the structures such as the waterproof motor and the bristles, when the flow choking block moves downwards, the waterproof motor is started to work, the waterproof motor drives the rotating rod to rotate, the rotating rod drives the bristles to rotate, the rotating rod is driven to move downwards when the flow choking block moves downwards, the bristles clean the bottom end of the flow choking block, and further medium impurities adhered to a sealing surface are cleaned, so that the problem that when a gate valve is closed, the medium impurities adhered to the sealing surface are extruded by the gate plate to easily damage a sealing ring, the sealing performance is poor, and the valve is leaked is solved;

2. through the electric putter and apart from inductor isotructure that set up, when slider two removed apart from the inductor, apart from the inductor with signal transmission to apart from the controller, apart from the shrink of controller control electric putter, electric putter drives the bull stick and removes to recess two in, the piece that chokes the flow continues to move down and closes sealedly to the gate valve.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a front view of an electric flanged knife gate valve according to the present invention;

fig. 2 is a schematic view of a connection structure between a gate plate and a valve seat of the electric flanged knife gate valve according to the present invention;

fig. 3 is a front view of a gate plate in the electric flange knife gate valve according to the present invention;

fig. 4 is a cross-sectional view of a gate plate in the electric flange knife gate valve according to the present invention;

figure 5 shows an enlarged schematic view of section a of figure 4 of the present invention;

fig. 6 is a bottom view of the rotating rod of the electric flange knife gate valve of the present invention.

In the figure: 1-valve handle, 2-pull rod, 3-mounting block II, 4-mounting block I, 5-flashboard, 6-loop bar, 7-valve seat, 8-screw, 9-flow blocking block, 10-chute I, 11-slide block I, 12-groove I, 13-groove II, 14-chute II, 15-slide block II, 16-waterproof motor box, 17-mounting block, 18-telescopic rod, 19-compression spring, 20-distance sensor, 21-brush hair, 22-rotating rod and 23-electric push rod.

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, an electric flange knife type gate valve comprises valve seats 7, two valve seats 7 are arranged, a gate plate 5 is fixedly arranged between the two valve seats 7, a first groove 12 is longitudinally formed in the top of the gate plate 5, a choke block 9 is arranged in the first groove 12, a second groove 13 is formed in the inner side of the first groove 12, two sliding grooves 14 are longitudinally formed in two sides of the second groove 13, a second sliding block 15 is arranged in each sliding groove 14, the second sliding block 15 is in sliding fit with the second sliding groove 14, a buffer mechanism is fixedly arranged at the bottom in the second sliding groove 14 and fixedly connected with the second sliding block 15, electric push rods 23 are fixedly arranged at the tops of the second sliding blocks 15, mounting blocks 17 are fixedly arranged at the tops of the electric push rods 23, a rotating rod 22 is rotatably arranged between the two mounting blocks 17, brush bristles 21 are arranged on the rotating rod 22, and a waterproof motor box 16 is fixedly arranged outside one of the mounting blocks 17, install waterproof motor in the waterproof motor box 16, waterproof motor output runs through one of them installation piece 17 and with bull stick 22 fixed connection, the fixed distance inductor 20 that is provided with of lower extreme in the recess two 13, distance inductor 20 is connected with the distance controller electricity, the distance controller is connected with electric putter 23 electricity, installation piece two 3 passes through screw 8 fixed mounting in the top of installation piece one 4, the fixed slider one 11 that is provided with respectively in the both sides of choked flow piece 9, two slider one 11 set up respectively in two spout one 10, slider one 11 and spout one 10 sliding fit, two spout one 10 vertically set up respectively in recess one 12 in both sides, buffer gear includes telescopic link 18, the telescopic link 18 other end and two 15 fixed connection of slider, the cover is equipped with compression spring 19 on the telescopic link 18, compression spring 19 surface scribbles the anti-rust paint.

As the improvement of above-mentioned technical scheme, 5 fixed mounting blocks 4 that are provided with in top of flashboard, mounting block two 3 are installed to mounting block one 4 tops, the fixed loop bar 6 that is provided with in mounting block two 3 tops, 6 tops of loop bar rotate and are provided with the valve handle 1, the screw thread is inserted and is equipped with pull rod 2 on the valve handle 1, 2 bottoms of pull rod run through mounting block two 3 in proper order, mounting block one 4 and rotate with the bearing and be connected, the fixed top that sets up at the choked flow piece 9 of bearing.

Through the arrangement of the electric push rod 23, the distance sensor 20, the bristles 21 and other structures, when the flow choking block 9 moves downwards, the waterproof motor is started to work, the waterproof motor drives the rotating rod 22 to rotate, the rotating rod 22 drives the bristles 21 to rotate, the flow choking block 9 drives the rotating rod 22 to move downwards when moving downwards, the bristles 21 clean the bottom end of the flow choking block 9, and further clean the medium impurities adhered to the sealing surface, when the second sliding block 15 moves downwards to the distance sensor 20, the distance sensor 20 senses a signal and transmits the signal to the distance controller, the distance controller controls the electric push rod 23 to shrink, the electric push rod 23 drives the rotating rod 22 to move into the second groove 13, the flow choking block 9 continues to move downwards to close and seal the gate valve, and the problem that when the gate valve is closed, the medium impurities adhered to the sealing surface are easily extruded by the sealing ring to cause poor sealing performance is solved, problems causing valve leakage;

clockwise rotation valve 1, valve 1 drive pull rod 2 downstream, and pull rod 2 drives the piece 9 downstream that chokes the flow, can close the gate valve, and anticlockwise rotation valve 1, valve 1 drive pull rod 2 upward movement, and pull rod 2 drives the piece 9 upward movement that chokes the flow, can open the gate valve.

The details of the present invention are well known to those skilled in the art.

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 (5)

1. The electric flange knife type gate valve comprises valve seats (7), wherein two valve seats (7) are arranged, and the electric flange knife type gate valve is characterized in that a gate plate (5) is fixedly arranged between the two valve seats (7), a first groove (12) is longitudinally formed in the top of the gate plate (5), a flow blocking block (9) is arranged in the first groove (12), a second groove (13) is formed in the inner side of the first groove (12), two sliding chutes (14) are longitudinally formed in two sides of the second groove (13), two sliding blocks (15) are respectively arranged in the two sliding chutes (14), the two sliding blocks (15) are in sliding fit with the second sliding chutes (14), a buffer mechanism is fixedly arranged at the inner bottom of the second sliding chute (14), the buffer mechanism is fixedly connected with the second sliding blocks (15), and electric push rods (23) are respectively fixedly arranged at the tops of the two sliding blocks (15), the top of the electric push rod (23) is fixedly provided with an installation block (17), a rotating rod (22) is arranged between the two installation blocks (17) in a rotating mode, bristles (21) are arranged on the rotating rod (22), a waterproof motor box (16) is fixedly arranged on the outer side of one of the installation blocks (17), a waterproof motor is installed in the waterproof motor box (16), the output end of the waterproof motor penetrates through one of the installation blocks (17) and is fixedly connected with the rotating rod (22), a distance sensor (20) is fixedly arranged at the inner lower end of the second groove (13), the distance sensor (20) is electrically connected with a distance controller, the distance controller is electrically connected with the electric push rod (23), a first installation block (4) is fixedly arranged at the top of the flashboard (5), a second installation block (3) is installed above the first installation block (4), the fixed loop bar (6) that is provided with in installation piece two (3) top, loop bar (6) top is rotated and is provided with valve handle (1), the screw thread is inserted and is equipped with pull rod (2) on valve handle (1), pull rod (2) bottom is run through in proper order installation piece two (3), installation piece one (4) rotate with the bearing and be connected, the bearing is fixed to be set up the top of choked flow piece (9).

2. An electric flanged knife gate valve according to claim 1, characterized in that: the second mounting block (3) is fixedly mounted above the first mounting block (4) through a screw (8).

3. An electric flanged knife gate valve according to claim 1, characterized in that: the two sides of the flow blocking block (9) are respectively fixedly provided with a first sliding block (11), the first sliding blocks (11) are respectively arranged in a first sliding groove (10), the first sliding blocks (11) are in sliding fit with the first sliding grooves (10), and the first sliding grooves (10) are respectively longitudinally arranged on the two sides in the first groove (12).

4. An electric flanged knife gate valve according to claim 1, characterized in that: the buffer mechanism comprises a telescopic rod (18), the other end of the telescopic rod (18) is fixedly connected with the second sliding block (15), and a compression spring (19) is sleeved on the telescopic rod (18).

5. An electric flanged knife gate valve according to claim 4, characterized in that: and the surface of the compression spring (19) is coated with antirust paint.

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