CN208252840U - A kind of shut-off valve - Google Patents

Abstract

The utility model discloses a kind of shut-off valves, including the first handwheel, first valve rod, first screw shell, first fixing seat, first flap, valve body, seal washer, second flap, second screw shell, second valve rod, second fixing seat, epoxy resin wear-resistant coating, valve stem sleeve, third valve rod, second handwheel, buffer board and buffer unit, the top inner wall of the valve body has been bolted the first fixing seat, the first screw shell has been bolted on the inside of first fixing seat, the inside of first screw shell is connected with the first valve rod by screw thread engagement, first valve rod passes through valve body, and first one end of valve rod be bolted the first handwheel, and the other end is connected with the first flap by buckle, the bottom interior wall of the valve body has been bolted the second fixing seat, the shut-off valve, have Good buffer effect and practical feature.

Description

A kind of shut-off valve

Technical field

The utility model relates to shut-off valve technical field, specially a kind of shut-off valve.

Background technique

Shut-off valve is also known as pipe valve valve, belongs to forced seal formula valve, so when valve is closed, it is necessary to apply to flap and press Power is not leaked with forced seal face.When medium is by entering valve below flap, the resistance overcome required for operating force, is valve The frictional force of bar and filler and the thrust as caused by the pressure of medium, the power of closing valve is bigger than the power of valve opening door, so valve rod Diameter it is big, the failure of valve rod bending otherwise can occur.

But in existing shut-off valve, there are problems that buffering effect difference and the weak feature of practicability: will receive often outer Power impacts and causes the leakproofness of shut-off valve and pipeline junction impacted, and shut-off valve is excessively cumbersome in moving process, no It is enough laborsaving.Therefore, it designs a kind of with good buffer effect and practical shut-off valve is necessary.

Utility model content

The purpose of this utility model is to provide a kind of shut-off valves, to solve the problems mentioned in the above background technology.

In order to solve the above-mentioned technical problem, the utility model provides the following technical solutions: a kind of shut-off valve, including first-hand Wheel, the first valve rod, the first screw shell, the first fixing seat, the first flap, valve body, seal washer, the second flap, the second screw thread Sleeve, the second valve rod, the second fixing seat, epoxy resin wear-resistant coating, valve stem sleeve, third valve rod, the second handwheel, buffer board are gentle Flushing device, the top inner wall of the valve body have been bolted the first fixing seat, have passed through spiral shell on the inside of first fixing seat Bolt is fixed with the first screw shell, and the inside of first screw shell is connected with the first valve rod by screw thread engagement, and described the One valve rod passes through valve body, and one end of the first valve rod has been bolted the first handwheel, and the other end is connected by buckle activity It is connected to the first flap, the bottom interior wall of the valve body has been bolted the second fixing seat, the inside of second fixing seat It has been bolted the second screw shell, the inside of second screw shell is connected with the second valve rod by screw thread engagement, One end of second valve rod has been bolted the second flap, and the both ends of the valve body are by being adhesively fixed with gasket Circle, the seal washer are externally coated with epoxy resin wear-resistant coating, and the side of the valve body is connected with the by nylon rope Three valve rods, one end of the third valve rod is by being welded with valve stem sleeve, and the other end has been bolted the second handwheel, The two sides of the valve body correspondence is equipped with buffer unit, and by being adhesively fixed with buffering between two ipsilateral buffer units Plate, the buffer unit are made of column, shell, spring, limited block, sliding rail, sliding block, baffle and buffering marble, the shell Two sides inner wall by being welded with sliding rail, the both ends of the sliding rail are by being welded with limited block, the sliding rail Inside sliding block is installed, and be bolted baffle between two sliding blocks, passed through weldering at the top center of the baffle Connect and be fixed with column, the column passes through shell, and outside is socketed with spring, the both ends of the spring respectively with baffle and shell Connection, the bottom interior wall of the shell is by being adhesively fixed with buffering marble.

Further, the valve body is connect with the first flap by articulate.

Further, the valve stem sleeve and the second valve rod are fit structure.

Further, be curved surface at the top of the bottom of first flap and the second flap, and outside be coated with it is anti- Water rubber.

Further, anti-skid chequer is carved in the outside of first handwheel and the second handwheel.

Further, the outside of the first valve rod and the second valve rod is cased with sealing ring.

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

1: first rotating the first handwheel, and the first valve rod is driven to move up and down, be that buckle is lived by the first valve rod and the first flap Dynamic connection, one end of the first flap are connect with valve body by articulate, so that the first valve rod drives the first flap to be rotated Movement, and then the shut-off valve is opened, when closing the shut-off valve, the first valve rod and valve body have been shared flow of media together and have been produced Raw resistance greatly reduces required power when the first hand wheel rotating, consequently facilitating the folding of the shut-off valve, when the first flap When breaking down with the junction of valve body and closure function cannot be played, valve stem sleeve is connect with the second valve rod first, is rotated later Second handwheel is welded and fixed, then by fixing between the second handwheel and third valve rod for bolt between third valve rod and valve stem sleeve Second handwheel can drive third stem movement, and third valve rod drives valve stem sleeve movement, be tied for from valve stem sleeve and the second valve rod Structure realizes the effect of secondary stop, greatly improves making for the shut-off valve so that the second valve rod drives the movement of the second flap With the service life, the practicability of the shut-off valve is helped to improve；

2: when the shut-off valve is by external collision, it will lead to that buffer board is extruded and column inwardly moves, and in column It inwardly during movement, is welded and fixed by column with baffle, spring and baffle are fixed for bolt, so that spring occurs Elastic deformation, and when column moves and squeezes buffering marble, it will lead to buffering marble and elastic deformation occur, and by buffering marble The buffer function of itself and the restoring force of spring itself act on, and then external force is absorbed and offset, and achieve the purpose that buffering, help In the buffering effect for improving the shut-off valve.

Detailed description of the invention

Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the whole side structure schematic view of the utility model；

Fig. 3 is the buffer unit structure schematic diagram of the utility model；

In figure: 1, the first handwheel；2, the first valve rod；3, the first screw shell；4, the first fixing seat；5, the first flap；6, Valve body；7, seal washer；8, the second flap；9, the second screw shell；10, the second valve rod；11, the second fixing seat；12, asphalt mixtures modified by epoxy resin Rouge wear-resistant coating；13, valve stem sleeve；14, third valve rod；15, the second handwheel；16, buffer board；17, buffer unit；18, column； 19, shell；20, spring；21, limited block；22, sliding rail；23, sliding block；24, baffle；25, marble are buffered.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of shut-off valve, including the first handwheel 1, first Valve rod 2, the first screw shell 3, the first fixing seat 4, the first flap 5, valve body 6, seal washer 7, the second flap 8, the second screw thread Sleeve 9, the second valve rod 10, the second fixing seat 11, epoxy resin wear-resistant coating 12, valve stem sleeve 13, third valve rod 14, the second handwheel 15, buffer board 16 and buffer unit 17, the top inner wall of valve body 6 have been bolted the first fixing seat 4, the first fixing seat 4 Inside be bolted the first screw shell 3, the inside of the first screw shell 3 is connected with the first valve by screw thread engagement Bar 2, the first valve rod 2 passes through valve body 6, and one end of the first valve rod 2 has been bolted the first handwheel 1, and the other end passes through Buckle is connected with the first flap 5, and the bottom interior wall of valve body 6 has been bolted the second fixing seat 11, the second fixing seat 11 inside has been bolted the second screw shell 9, and the inside of the second screw shell 9 is connected with second by screw thread engagement Valve rod 10, one end of the second valve rod 10 have been bolted the second flap 8, and the both ends of valve body 6 are close by being adhesively fixed with Seal washer 7, seal washer 7 are externally coated with epoxy resin wear-resistant coating 12, and the side of valve body 6 is connected with by nylon rope Three valve rods 14, one end of third valve rod 14 is by being welded with valve stem sleeve 13, and the other end has been bolted second-hand Wheel 15, the two sides of valve body 6 correspondence are equipped with buffer unit 17, and by being adhesively fixed between two ipsilateral buffer units 17 There is buffer board 16, buffer unit 17 is eased up by column 18, shell 19, spring 20, limited block 21, sliding rail 22, sliding block 23, baffle 24 The composition of marble 25 is rushed, for the two sides inner wall of shell 19 by being welded with sliding rail 22, it is solid that the both ends of sliding rail 22 pass through welding Surely there is limited block 21, the inside of sliding rail 22 is equipped with sliding block 23, and has been bolted baffle 24 between two sliding blocks 23, gear By being welded with column 18 at the top center of plate 24, column 18 passes through shell 19, and outside is socketed with spring 20, spring 20 both ends are connect with baffle 24 and shell 19 respectively, and the bottom interior wall of shell 19 is by being adhesively fixed with buffering marble 25；Valve Body 6 is connect with the first flap 5 by articulate, convenient for saving labour, improves working efficiency；Valve stem sleeve 13 and the second valve rod 10 be fit structure, convenient for 13 sets of valve stem sleeve in the second valve rod 10；The bottom of first flap 5 and the top of the second flap 8 are Curved surface, and outside is coated with water proof rubber, convenient for improving the leakproofness and waterproofness of flap；First handwheel 1 and the second handwheel Anti-skid chequer is carved in 15 outside, convenient for improving the skid resistance of handwheel；The outside of first valve rod 2 and the second valve rod 10 is cased with close Seal, convenient for improving the leakproofness of this shut-off valve；The first handwheel 1 is first rotated, and the first valve rod 2 is driven to move up and down, by first Valve rod 2 and the first flap 5 are that buckle is flexibly connected, and one end of the first flap 5 is connect with valve body 6 by articulate, so that the One valve rod 2 drives the first flap 5 to be rotated, and then the shut-off valve is opened, when closing the shut-off valve, the first valve rod 2 and valve body 6 shared resistance caused by flow of media together, required power when greatly reducing the rotation of the first handwheel 1, from And it is convenient for the folding of the shut-off valve, when the junction of the first flap 5 and valve body 6 breaks down and cannot play closure function, Valve stem sleeve 13 is connect with the second valve rod 10 first, rotates the second handwheel 15 later, by between the second handwheel 15 and third valve rod 14 It fixes for bolt, is welded and fixed between third valve rod 14 and valve stem sleeve 13, then the second handwheel 15 can drive third valve rod 14 to transport Dynamic, third valve rod 14 drives valve stem sleeve 13 to move, and is fit structure by valve stem sleeve 13 and the second valve rod 10, so that the second valve Bar 10 drives the movement of the second flap 8, realizes the effect of secondary stop, greatly improves the service life of the shut-off valve, facilitate Improve the practicability of the shut-off valve；When the shut-off valve is by external collision, will lead to buffer board 16 be extruded and column 18 to Interior movement, and during column 18 inwardly moves, it is welded and fixed by column 18 with baffle 24, spring 20 is with baffle 24 Bolt is fixed, so that elastic deformation occurs for spring 20, and when column 18 moves and squeezes buffering marble 25, will lead to slow It rushes marble 25 and elastic deformation occurs, and acted on by the restoring force of the buffer function of buffering marble 25 itself and spring 20 itself, into And external force is absorbed and offset, achieve the purpose that buffering, helps to improve the buffering effect of the shut-off valve.

Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (6)

1. a kind of shut-off valve, including the first handwheel (1), the first valve rod (2), the first screw shell (3), the first fixing seat (4), One flap (5), valve body (6), seal washer (7), the second flap (8), the second screw shell (9), the second valve rod (10), second are consolidated Reservation (11), epoxy resin wear-resistant coating (12), valve stem sleeve (13), third valve rod (14), the second handwheel (15), buffer board (16) With buffer unit (17), it is characterised in that: the top inner wall of the valve body (6) has been bolted the first fixing seat (4), institute It states and has been bolted on the inside of the first fixing seat (4) the first screw shell (3), the inside of first screw shell (3) It is connected with the first valve rod (2) by screw thread engagement, first valve rod (2) passes through valve body (6), and one end of the first valve rod (2) It has been bolted the first handwheel (1), and the other end is connected with the first flap (5) by buckle, the valve body (6) Bottom interior wall has been bolted the second fixing seat (11), and has been bolted on the inside of second fixing seat (11) Two screw shells (9), the inside of second screw shell (9) are connected with the second valve rod (10) by screw thread engagement, and described the One end of two valve rods (10) has been bolted the second flap (8), and the both ends of the valve body (6) are close by being adhesively fixed with Seal washer (7), the seal washer (7) are externally coated with epoxy resin wear-resistant coating (12), and the side of the valve body (6) is logical Nylon rope is crossed to be connected with third valve rod (14), one end of the third valve rod (14) by being welded with valve stem sleeve (13), and The other end has been bolted the second handwheel (15), and the two sides of the valve body (6) correspondence is equipped with buffer unit (17), and By being adhesively fixed with buffer board (16) between two ipsilateral buffer units (17), the buffer unit (17) is by column (18), shell (19), spring (20), limited block (21), sliding rail (22), sliding block (23), baffle (24) and buffering marble (25) group At for the two sides inner wall of the shell (19) by being welded with sliding rail (22), the both ends of the sliding rail (22) pass through weldering It connects and is fixed with limited block (21), the inside of the sliding rail (22) is equipped with sliding block (23), and passes through spiral shell between two sliding blocks (23) Bolt is fixed with baffle (24), by being welded with column (18) at the top center of the baffle (24), the column (18) Across shell (19), and outside is socketed with spring (20), the both ends of the spring (20) respectively with baffle (24) and shell (19) Connection, the bottom interior wall of the shell (19) is by being adhesively fixed with buffering marble (25).

2. a kind of shut-off valve according to claim 1, it is characterised in that: the valve body (6) and the first flap (5) pass through hinge Chain is flexibly connected.

3. a kind of shut-off valve according to claim 1, it is characterised in that: the valve stem sleeve (13) is with the second valve rod (10) Fit structure.

4. a kind of shut-off valve according to claim 1, it is characterised in that: the bottom of first flap (5) and the second valve Valve is curved surface at the top of (8), and outside is coated with water proof rubber.

5. a kind of shut-off valve according to claim 1, it is characterised in that: first handwheel (1) and the second handwheel (15) Outside be carved with anti-skid chequer.

6. a kind of shut-off valve according to claim 1, it is characterised in that: first valve rod (2) and the second valve rod (10) Outside be cased with sealing ring.