CN211901692U

CN211901692U - Novel check valve

Info

Publication number: CN211901692U
Application number: CN202020440286.6U
Authority: CN
Inventors: 吴合理; 吴公平; 吴旭东
Original assignee: Shanghai Outelai Valve Machinery Co ltd
Current assignee: Shanghai Outelai Valve Machinery Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-11-10
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a novel check valve relates to valve technical field, has solved current check valve, and the breakwater is installed in the inside of valve more, and the valve inner space office is short, is difficult for implementing the dismouting to the breakwater, causes the breakwater to take out the inconvenient problem of clean operation. The novel check valve comprises a valve body, an open slot and a jacking frame, wherein a rectangular open slot is supported and welded at the top end of the left side of a middle water passing section of the valve body, and a rectangular cover plate is covered at the top end of the open slot; the open slot comprises limit clamp plates, and four limit clamp plates are symmetrically supported on the left side and the right side of the open slot; a threaded mandril is rotatably arranged at the top end of the right side of the middle water passing section of the valve body in a penetrating way; the top pressure frame includes picture peg and oblique section briquetting. The utility model discloses two vertical stay slats of apron bottom can be with apron bracketing location and open slot in, avoid the apron to follow the preceding slip pine of roof pressure frame to take off the aversion and lose and make the open slot hourglass empty and open.

Description

Novel check valve

Technical Field

The utility model relates to a valve structure technical field specifically is novel check valve.

Background

The check valve is a valve which automatically opens and closes a valve flap by the flow of a medium and is used for preventing the medium from flowing backwards, and is also called a check valve, a one-way valve, a reverse flow valve and a back pressure valve. According to the structural division, the check valve can be divided into a lifting check valve, a swing check valve and a butterfly check valve. The lift check valve can be divided into a vertical type and a horizontal type. The check valve used in the oil exploitation pipeline is mainly a horizontal check valve, which mainly comprises a valve body, a valve seat, a valve clack and a valve cover, wherein the valve body is provided with a liquid inlet channel, a middle cavity and a liquid outlet channel, the liquid inlet channel is communicated with the liquid outlet channel through the middle cavity, the valve seat is fixed in the middle cavity, and the valve clack can be arranged in the middle cavity in a vertically moving mode and is tightly abutted and closed on the valve seat through an elastic piece. When high-pressure medium enters from the liquid inlet channel, the valve clack is pushed open under the pressure of the medium and against the elasticity of the elastic piece and the gravity of the valve clack, so that the valve clack and the valve seat are opened, and the medium flows out from the liquid outlet channel after passing through the middle cavity. After the medium pressure is reduced, the valve clack falls down again under the action of the elastic piece to reset and close the valve seat, so that the medium is prevented from flowing back.

For example, patent No. is CN 201720535834.1's patent, discloses a check valve, including the valve body, the first pipeline of valve body fixedly connected with and second pipeline, the fixed axle is worn to be equipped with by the valve body, the valve rod has been cup jointed to the fixed axle, valve rod fixedly connected with seals the valve clack of first pipeline, the diameter of valve clack is greater than the diameter of first pipeline, valve body fixedly connected with limiting plate, the limiting plate is provided with first logical groove, and round fixed axle pivoted in-process when the valve clack, the valve rod is in first logical inslot. Because the reason of check valve long-term use often can make the rotation of valve clack take place the skew and cause the leakproofness to reduce, so the utility model discloses have the restriction effect to valve rod rotation track and finally reach the purpose of long-term use. The existing check valve generally has the problems that the area of a plugging cover plate is large, 3-4 screws are generally required to be tightly pushed and positioned, the tightness of a plurality of screws is required to be sequentially implemented when the plugging cover plate is disassembled and assembled, the operation flow is complex and inconvenient, and labor is wasted, in addition, a water baffle is mostly arranged in the valve, the internal space of the valve is narrow, the water baffle is not easy to disassemble and assemble, and the water baffle is inconvenient to take out and clean.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel check valve to the shutoff apron area that proposes in solving above-mentioned background art is great, and generally needs the tight location in 3-4 screw tops, causes to need to implement the elasticity to many screws in proper order when dismouting shutoff apron, and the complex operation flow is inconvenient, and is comparatively hard, and the breakwater is installed in the inside of valve more in addition, and the valve inner space local is short, is difficult for implementing the dismouting to the breakwater, causes the breakwater to take out the inconvenient problem of clean operation.

In order to achieve the above object, the utility model provides a following technical scheme: the novel check valve comprises a valve body, an open slot and a jacking frame, wherein a rectangular open slot is supported and welded at the top end of the left side of a middle water passing section of the valve body, and a rectangular cover plate is covered at the top end of the open slot; the open slot comprises limit clamp plates, and four limit clamp plates are symmetrically supported on the left side and the right side of the open slot; a threaded mandril is rotatably arranged at the top end of the right side of the middle water passing section of the valve body in a penetrating way; the top pressing frame comprises a plugboard and an inclined cutting pressing block; the top pressure frame is formed by combining three inclined-section pressing blocks welded to the front side of the top end of the main supporting frame and two inserting plates symmetrically welded to the bottoms of the left side and the right side of the main supporting frame at intervals, and the threaded ejector rod can be jacked in a threaded manner to abut against the back of the top pressure frame.

Preferably, the cover plate comprises wedge blocks, hanging rods and baffle plates, three wedge blocks are formed at the top end of the cover plate at intervals, two hanging rods are symmetrically welded at the bottom of the cover plate, the bottoms of the two hanging rods are rotatably connected with a circular baffle plate, and the baffle plate is drooped and blocked on a left opening of a middle water passing section of the valve body.

Preferably, two vertical brace plates are symmetrically welded at the outer eaves of two sides of the bottom of the cover plate, and the two vertical brace plates are inserted and blocked in the open slot.

Preferably, the two insert plates are correspondingly inserted and slidably arranged in the middle spacing grooves of the left and right insert plates.

Preferably, the three inclined cutting pressing blocks correspondingly abut against and slide on the top ends of the three wedge blocks.

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

1. the baffle is directly hung and rotatably installed with the cover plate, the baffle can be taken down together with the cover plate only by taking down the cover plate, secondary disassembly and assembly of the baffle inside the valve body are avoided after the cover plate is taken out, the disassembly and assembly difficulty of the baffle is reduced, and the baffle is conveniently disassembled and taken down to clean scale and dirt on a sealing surface;

2. the cover plate can be sealed and pressed on the opening of the open slot through the inclined plane top sliding fit of the three inclined cutting pressing blocks and the three wedge blocks, the top pressing frame is tightly fastened by adopting one threaded ejector rod top pushing force, and then the cover plate and the baffle plate can be disassembled and assembled only by loosening and tightening one threaded ejector rod.

Drawings

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

FIG. 2 is a schematic view of the three-dimensional structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the half-section of the present invention;

FIG. 4 is a schematic view of the installation position of the baffle plate of the present invention;

fig. 5 is a schematic view of a three-dimensional structure of the top pressing frame of the present invention;

fig. 6 is a schematic view of the baffle structure of the present invention.

In the figure: 1. a valve body; 2. an open slot; 201. a limiting clamp plate; 3. a jacking frame; 301. inserting plates; 302. obliquely cutting and pressing blocks; 4. a threaded ejector rod; 5. a cover plate; 501. a wedge block; 502. a boom; 503. and a baffle plate.

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.

Referring to fig. 1 to 6, the present invention provides an embodiment: the novel check valve comprises a valve body 1, an open slot 2 and a top pressure frame 3, wherein the top end of the left side of a water passing section in the middle of the valve body 1 is supported and welded with a rectangular open slot 2, and the top end of the open slot 2 is covered with a rectangular cover plate 5; the open slot 2 comprises limiting splints 201, and the left side and the right side of the open slot 2 are symmetrically supported with four limiting splints 201; a threaded mandril 4 is rotatably arranged at the top end of the right side of the middle water-passing section of the valve body 1 in a penetrating way; the top pressing frame 3 comprises an inserting plate 301 and an inclined-section pressing block 302; the jacking frame 3 is formed by combining a main body supporting frame, three inclined cutting press blocks 302 welded on the front side of the top end of the main body supporting frame at equal intervals and two insert plates 301 symmetrically welded on the bottoms of the left side and the right side of the main body supporting frame, and the threaded mandril 4 can be jacked in a threaded manner to abut against the back of the jacking frame 3.

Further, the cover plate 5 comprises wedge blocks 501, suspenders 502 and baffles 503, three wedge blocks 501 are formed at the top end of the cover plate 5 at intervals, two suspenders 502 are symmetrically welded at the bottom of the cover plate 5, a circular baffle 503 is rotatably hung at the bottoms of the two suspenders 502, the baffle 503 is hung and blocked on a left opening of a middle water passing section of the valve body 1, the baffle 503 is directly hung and rotated with the cover plate 5 to be installed together, the baffle 503 can be taken down together only by taking down the cover plate 5, secondary disassembly and assembly of the baffle 503 inside the valve body 1 are avoided after the cover plate 5 is taken out, the disassembly and assembly difficulty of the baffle 503 is reduced, and the baffle 503 is taken down to clean scale and dirt on a sealing surface.

Further, the two vertical supporting strips are symmetrically welded at the outer brim positions of two sides of the bottom of the cover plate 5, the two vertical supporting strips are inserted and blocked in the open slot 2, the two vertical supporting strips can position the cover plate 5 in the open slot 2, and the cover plate 5 is prevented from being loosened and displaced along with the front sliding of the jacking frame 3 to be lost so that the open slot 2 is opened in a leakage mode.

Furthermore, the two insertion plates 301 are correspondingly inserted and slidably arranged in the middle spacing grooves of the left and right groups of limiting clamping plates 201, and the top pressing frame 3 and the open groove 2 can be inserted and positioned together through the corresponding insertion of the left and right insertion plates 301 and the two groups of limiting clamping plates 201, so that the top pressing frame 3 is prevented from sliding upwards, downward extrusion force can be generated, and the cover plate 5 is sealed and pressed on the opening of the open groove 2.

Further, three sections of the inclined cutting pressing blocks 302 correspondingly abut against and slide on the top ends of three sections of the wedge blocks 501, the cover plate 5 can be tightly pressed on the opening of the open slot 2 through the inclined plane top sliding fit of the three sections of the inclined cutting pressing blocks 302 and the three sections of the wedge blocks 501, the top pressing frame 3 is fastened by adopting a thread ejector rod 4 to push the top in a pushing manner, and then the cover plate 5 and the baffle 503 can be disassembled and assembled only by loosening and tightening the thread ejector rod 4.

Disassembling and taking process of the baffle 503: firstly, the threaded mandril 4 is loosened to slide down the jacking frame 3, then the cover plate 5 is lifted up to be opened and the baffle 503 is taken out from the open slot 2 in a linkage manner, and the removing process of the baffle 503 is finished (note that when the baffle 503 is removed, water is stopped firstly and the baffle 503 is put in a drooping blocking state).

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Novel check valve, its characterized in that: the valve comprises a valve body (1), an open slot (2) and a top pressure frame (3), wherein the top end of the left side of a middle water passing section of the valve body (1) is supported and welded with a rectangular open slot (2), and the top end of the open slot (2) is covered with a rectangular cover plate (5); the open slot (2) comprises limit clamp plates (201), and the left side and the right side of the open slot (2) are symmetrically supported with four limit clamp plates (201); a threaded ejector rod (4) is rotatably arranged at the top end of the right side of the middle water passing section of the valve body (1) in a penetrating way; the top pressing frame (3) comprises an inserting plate (301) and an inclined-section pressing block (302); the jacking frame (3) is formed by combining three inclined-section pressing blocks (302) welded at the front side of the top end of the main supporting frame and two inserting plates (301) symmetrically welded at the bottoms of the left side and the right side of the main supporting frame at intervals, and the threaded ejector rod (4) can be jacked in a threaded manner to abut against the back of the jacking frame (3).

2. The new check valve as set forth in claim 1, wherein: the cover plate (5) comprises wedge blocks (501), hanging rods (502) and a baffle (503), wherein three wedge blocks (501) are arranged at the top end of the cover plate (5) in a spaced mode, the two hanging rods (502) are symmetrically welded at the bottom of the cover plate (5), the bottoms of the two hanging rods (502) are rotatably connected with a circular baffle (503), and the baffle (503) is hung on an opening in the left side of a middle water passing section of the valve body (1) in a drooping mode.

3. The new check valve as set forth in claim 1, wherein: two vertical brace strips are symmetrically welded at the outer eaves of two sides of the bottom of the cover plate (5), and the two vertical brace strips are inserted and blocked in the open slot (2).

4. The new check valve as set forth in claim 1, wherein: the two insert plates (301) are correspondingly inserted and slidably arranged in the middle spacing grooves of the left and right insert plates (301).

5. The new check valve as set forth in claim 1, wherein: the three inclined cutting pressing blocks (302) are correspondingly abutted against and slide on the top ends of the three wedge blocks (501).