CN211951482U

CN211951482U - Fireproof soft-sealing single-seat valve

Info

Publication number: CN211951482U
Application number: CN201922393458.9U
Authority: CN
Inventors: 盛波
Original assignee: Wiseway Shanghai Control Valve Co ltd
Current assignee: Kaidu (Shanghai) Fluid Technology Co., Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-11-17
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a fireproof soft-sealing single-seat valve, which comprises an upper cylinder body, a middle cylinder body and a bottom cylinder body, wherein the bottom cylinder body is internally provided with a flashboard mechanism mounting groove, a flashboard mechanism is arranged inside the flashboard mechanism mounting groove, the two sides of the flashboard mechanism mounting groove are symmetrically provided with a port A, a port B, the port A and the port B are communicated with the flashboard mechanism mounting groove, the flashboard mechanism is provided with a soft flashboard and a hard flashboard, the top center of the soft flashboard is provided with a pressure rod fixed connecting groove, the bottom cylinder body, the middle cylinder body and the upper cylinder body are communicated with each other, the middle cylinder body and the upper cylinder body are internally provided with a pressure rod groove in the vertical direction, the bottom end of a pressure rod in the pressure rod groove is fixedly connected with the pressure rod fixed connecting groove in the soft flashboard, the top end of the pressure, the device is reasonable in design, and the opening and closing of the fireproof soft-sealing single-seat valve can be controlled at will by pressing the handle.

Description

Fireproof soft-sealing single-seat valve

Technical Field

The utility model relates to a sealed single seat valve technical field of fire prevention type specifically is a soft sealed single seat valve of fire prevention type.

Background

The soft sealing gate valve, industrial valve, the opening and closing part of the soft sealing gate valve is a flashboard, the movement direction of the flashboard is vertical to the fluid direction, the gate valve can only be fully opened and fully closed, and can not be adjusted and throttled. The gate plate is provided with two sealing surfaces, the two sealing surfaces of the most common mode gate plate valve form a wedge shape, the wedge angle is different along with the valve parameters, the nominal diameter is DN 50-DN 1200, and the use temperature is as follows: less than or equal to 200 ℃.

The soft seal gate valve is divided into an exposed rod soft seal gate valve and a non-exposed rod soft seal gate valve. Generally, a trapezoidal thread is arranged on the lifting rod, and the rotary motion is changed into the linear motion, namely the operation torque is changed into the operation thrust force through a nut in the middle of the gate plate and a guide groove on the valve body. When the valve is opened, when the lifting height of the gate plate is equal to 1 of the drift diameter of the valve: at 1 time, the passage of fluid is completely clear, but in operation, this position is not monitored. In actual use, the vertex of the valve rod is used as a mark, namely, the opening and closing position is used as the full opening position. To account for the occurrence of lock-up due to temperature changes, the valve was opened to the top position and then reversed 1/2-1 cycles to assume the fully open valve position. Thus, the fully open position of the valve is determined by the position (i.e., stroke) of the gate.

At present, after a long time of use of a sealing valve, the sealing performance of the sealing valve is reduced, and the stability of the sealing valve is not good enough, so an improved technology is urgently needed to solve the problem existing in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fireproof soft-sealing single-seat valve, wherein a hard flashboard is in a shape of a Chinese character 'men', a soft flashboard is arranged in the center of the hard flashboard, and the hard flashboard is welded with the soft flashboard, so that the soft flashboard and the hard flashboard are combined to ensure that the sealing effect of a sealing valve is better; the positions, close to the edges, of the two sides of the soft gate plate are symmetrically provided with limiting convex ribs, the limiting convex ribs and the soft gate plate are of an integrated structure, the soft gate plate can stably move in the mounting groove of the gate plate mechanism through the limiting convex ribs, the stability of the sealing valve is improved, the service life of the sealing valve is prolonged, and the problems in the background art are solved.

In order to achieve the above object, the utility model provides a fire prevention type soft sealing single seat valve, wherein: comprises an upper cylinder, a middle cylinder and a bottom cylinder;

the upper barrel is cylindrical, a fixed connecting edge is arranged at the bottom of the upper barrel, an integrated structure is formed between the bottom end of the upper barrel and the upper surface of the fixed connecting edge, screw fixing and mounting through holes are formed in the peripheral edge of the fixed connecting edge on the outer side of the bottom of the upper barrel, and a compression bar groove is formed in the upper barrel in the vertical direction;

the middle cylinder is cylindrical, the top end and the bottom end of the middle cylinder are respectively provided with a fixed connecting edge, the inner parts of the fixed connecting edges at the top and the bottom of the middle cylinder are respectively and uniformly provided with a fixed screw mounting hole, a pressure bar groove is arranged in the middle cylinder in the vertical direction, and the pressure bar groove penetrates through the middle cylinder in the vertical direction;

the bottom barrel, be equipped with the base on the barrel of bottom, port A, port B, flashboard mechanism mounting groove, the base, port A, port B structure as an organic whole, base, port A, intercommunication each other between the port B, be equipped with flashboard mechanism in the inside flashboard mechanism mounting groove of bottom barrel, the top of bottom barrel is equipped with connection port, and the bottom and the flashboard mechanism mounting groove intercommunication of connection port of bottom barrel top, the top connector outside of bottom barrel top connection port is equipped with the fixed connection limit, and the inside on fixed connection limit is equipped with screw fixed mounting hole.

Preferably, the utility model provides a pair of fire prevention type soft sealing single-seat valve, wherein, the top of going up the barrel is equipped with the upper cover, and the bottom and the upper cover structure as an organic whole of upper cover, the central authorities of upper cover are equipped with the through-hole, and the top of one side edge of upper cover is equipped with depression bar installation fixed bolster, depression bar installation fixed bolster welding is in the position that upper cover upper surface is close to the edge, the top central authorities of upper cover are equipped with the locking and detain, are equipped with depression bar installation through-hole on the inside vertical direction of locking knot, the top of upper cover is equipped with presses the handle.

Preferably, the utility model provides a pair of soft sealed single-seat valve of fire prevention type, wherein, be equipped with hard flashboard and soft flashboard in the flashboard mechanism, hard flashboard becomes "door" style of calligraphy, and the central authorities of hard flashboard are equipped with soft flashboard, welded connection between hard flashboard and the soft flashboard, the top central authorities of soft flashboard are equipped with depression bar fixed connection groove, and the both sides of soft flashboard are close to the symmetry at edge and are equipped with spacing protruding muscle, spacing protruding muscle with soft flashboard structure as an organic whole, soft flashboard, the bottom of hard flashboard are semi-circular.

Preferably, the utility model provides a pair of soft sealed single seat valve of fire prevention type, wherein, the inside of the inside flashboard mechanism mounting groove of bottom barrel is equipped with the spacing moving clamping groove of flashboard, the inside at the spacing moving clamping groove of flashboard is all installed with the both sides edge of hard flashboard to soft flashboard.

Preferably, the utility model provides a pair of soft sealed single-seat valve of fire prevention type, wherein, the inside of the inside depression bar fixed connection groove of soft flashboard is equipped with the depression bar, and the bottom outside of depression bar is equipped with the screw thread, fixed connection between the screw thread head through the depression bar between depression bar and the soft flashboard, the depression bar is installed in vertical direction go up the inside in the depression bar groove of barrel, the inside central authorities of middle barrel.

Preferably, the utility model provides a pair of soft sealed single seat valve of fire prevention type, wherein, go up the barrel, middle barrel, through fixing bolt fixed connection between the fixed connection limit between the barrel of bottom, go up the barrel, the seam crossing that middle barrel and bottom barrel are connected is equipped with O type sealing rubber packing ring.

Preferably, the utility model provides a pair of soft sealed single-seat valve of fire prevention type, wherein, through connecting axle swing joint, press the central authorities of handle and install between the top of pressing the one end of handle and depression bar on the depression bar installation fixed bolster of last bobbin end cover top.

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

(1) the hard gate plate is in a gate shape, the soft gate plate is arranged in the center of the hard gate plate, and the hard gate plate and the soft gate plate are connected in a welding manner, so that the sealing effect of the sealing valve is better by combining the soft gate plate and the hard gate plate;

(2) the positions, close to the edges, of the two sides of the soft gate plate are symmetrically provided with limiting convex ribs, the limiting convex ribs and the soft gate plate are of an integral structure, the soft gate plate can stably move in the mounting groove of the gate plate mechanism through the limiting convex ribs, the stability of the sealing valve is improved, and the service life of the sealing valve is prolonged;

(3) an O-shaped sealing rubber gasket is arranged at the joint of the upper barrel, the middle barrel and the bottom barrel, so that the sealing performance of the sealing valve is improved, and water leakage at the joint of the barrels is avoided;

(4) the device is reasonable in design, and the opening and closing of the fireproof soft-sealing single-seat valve can be controlled at will by pressing the handle.

Drawings

FIG. 1 is a schematic structural view of a soft sealing single seat valve of the present invention;

FIG. 2 is a sectional view of the soft sealing single seat valve cylinder body of the present invention;

FIG. 3 is a schematic diagram of the structure of the flexible brake;

fig. 4 is a schematic view of the shutter mechanism of the present invention.

In the figure: the device comprises a pressing handle 1, a locking buckle 2, an upper barrel end cover 3, an upper barrel 4, a flashboard mechanism 5, a port A6, a port B7, a bottom barrel 8, a middle barrel 9, a pressure lever mounting and fixing support 10, a pressure lever groove 11, a pressure lever 12, a transverse through hole 13, a pressure lever fixing and connecting groove 14, a limiting convex rib 15, a hard flashboard 16, a soft flashboard 17 and a base 18.

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. 1-4, the present invention provides a technical solution: a fireproof soft sealing single-seat valve comprises an upper cylinder 4, a middle cylinder 9 and a bottom cylinder 8;

the upper barrel body 4 is cylindrical, a fixed connecting edge is arranged at the bottom of the upper barrel body 4, a structure is integrated between the bottom end of the upper barrel body 4 and the upper surface of the fixed connecting edge, screw fixing and installing through holes are formed in the edge of the periphery of the fixed connecting edge on the outer side of the bottom of the upper barrel body 4, a pressure rod groove 11 is formed in the vertical direction in the upper barrel body 4, an upper barrel end cover 3 is arranged at the top end of the upper barrel body 4, the bottom of the upper barrel end cover 3 and the upper barrel body 4 are of an integrated structure, a through hole is formed in the center of the upper barrel end cover 3, a pressure rod installing and fixing support 10 is arranged above one edge of the upper barrel end cover 3, the pressure rod installing and fixing support 10 is welded at a position, close to the edge, on the upper surface of the upper barrel end cover 3, a locking buckle 2 is arranged in the center of the upper barrel end cover 3, a.

The middle cylinder 9 is cylindrical, the top end and the bottom end of the middle cylinder 9 are both provided with fixed connecting edges, the insides of the fixed connecting edges at the top and the bottom of the middle cylinder 9 are uniformly provided with fixing screw mounting holes, a pressure bar groove 11 is arranged in the middle cylinder 9 in the vertical direction, and the pressure bar groove 11 penetrates through the middle cylinder 9 in the vertical direction;

the bottom cylinder 8 is provided with a base 18, a port A6, a port B7, a flashboard mechanism mounting groove, the base 18, a port A6 and a port B7 which are integrated, the base 18, the port A6 and the port B7 are mutually communicated, a flashboard mechanism 5 is arranged in the flashboard mechanism mounting groove in the bottom cylinder 8, the flashboard mechanism 5 is provided with a hard flashboard 16 and a soft flashboard 17, the hard flashboard 16 is in a 'door' shape, the center of the hard flashboard 16 is provided with the soft flashboard 17, the hard flashboard 16 is welded with the soft flashboard 17, a pressure lever 12 is arranged in a pressure lever fixed connecting groove 14 in the soft flashboard 17, the bottom end of the pressure lever 12 is externally provided with a thread, the pressure lever 12 is fixedly connected with the soft flashboard 17 through the thread head of the pressure lever 12, the pressure lever 12 is vertically arranged in the upper cylinder 4, the pressure lever 11 in the center in the middle cylinder 9, the top, the soft flashboard 17 is provided with limiting convex ribs 15 at positions close to the edges symmetrically at two sides of the soft flashboard 17, the limiting convex ribs 15 and the soft flashboard 17 are of an integral structure, flashboard limiting moving clamping grooves are arranged in the flashboard mechanism mounting groove in the bottom cylinder 8, the edges of the two sides of the soft flashboard 17 and the hard flashboard 16 are both arranged in the flashboard limiting moving clamping grooves, the soft flashboard 17 can stably move in the flashboard mechanism mounting groove through the limiting convex ribs 15, the stability of a sealing valve is improved, the service life of the sealing valve is prolonged, the soft flashboard 17 and the bottom of the hard flashboard 16 are semicircular, the semicircular bottoms are connected with the bottom of the flashboard mechanism mounting groove and are more matched, the sealing performance is better, a connecting port is arranged above the bottom cylinder 8, the bottom of the connecting port above the bottom cylinder 8 is communicated with the flashboard mechanism mounting groove, and a fixed, and a screw fixing and mounting hole is formed in the fixed connecting edge.

Last barrel 4 on the soft sealed single seat valve of fire prevention type, middle barrel 9, through fixing bolt fixed connection between the fixed connection limit between the barrel 8 of bottom, go up barrel 4, the seam crossing that middle barrel 9 and bottom barrel 8 are connected is equipped with O type sealing rubber packing ring, presses through connecting axle swing joint between the one end of handle 1 and the top of depression bar 12, and the central authorities that press handle 1 install go up on the depression bar installation fixed bolster 10 of section of thick bamboo end cover 3 top, through pressing the opening and close of the soft sealed single seat valve of control fire prevention type that handle 1 can be random.

The installation method and the use principle are as follows: when the fireproof soft sealing single seat valve is used, a port A6 and a port B7 of the fireproof soft sealing single seat valve are fixedly connected with pipelines respectively, a pressing handle 1 on the fireproof soft sealing single seat valve is in a lifting state, the fireproof soft sealing single seat valve is in a closed state, when the pipelines on two sides of the fireproof soft sealing single seat valve need to be connected, the pressing handle 1 is pressed down manually, a pressing rod 12 is lifted up by pressing the pressing handle 1, a flashboard mechanism 5 is indirectly lifted up by the pressing rod 12, and the ports A6 and the ports B7 on two sides of the flashboard mechanism 5 are communicated, so that the pipelines on two sides of the pressing handle 1 are connected.

The fireproof soft-sealing single-seat valve is reasonable in design, good in sealing performance and stability, long in service life and convenient to control opening and closing of the fireproof soft-sealing single-seat valve.

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

Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a fire prevention type soft seal single seat valve which characterized in that: comprises an upper cylinder (4), a middle cylinder (9) and a bottom cylinder (8);

the upper barrel (4) is cylindrical, a fixed connecting edge is arranged at the bottom of the upper barrel (4), an integrated structure is formed between the bottom end of the upper barrel (4) and the upper surface of the fixed connecting edge, screw fixing and mounting through holes are formed in the peripheral edge of the fixed connecting edge on the outer side of the bottom of the upper barrel (4), and a pressure bar groove (11) is formed in the upper barrel (4) in the vertical direction;

the middle cylinder (9) is cylindrical, the top end and the bottom end of the middle cylinder (9) are respectively provided with a fixed connecting edge, the inside of the fixed connecting edges at the top and the bottom of the middle cylinder (9) is uniformly provided with a fixed screw mounting hole, a pressure bar groove (11) is arranged in the middle cylinder (9) in the vertical direction, and the pressure bar groove (11) penetrates through the middle cylinder (9) in the vertical direction;

bottom barrel (8), be equipped with base (18) on bottom barrel (8), port A (6), port B (7), flashboard mechanism mounting groove, base (18), port A (6), port B (7) structure as an organic whole, base (18), port A (6), intercommunication each other between port B (7), be equipped with flashboard mechanism (5) in the inside flashboard mechanism mounting groove of bottom barrel (8), the top of bottom barrel (8) is equipped with connection port, the bottom and the flashboard mechanism mounting groove intercommunication of the connection port of bottom barrel (8) top, the top connector outside of bottom barrel (8) top connection port is equipped with the fixed connection limit, and the inside on fixed connection limit is equipped with screw fixed mounting hole.

2. A fire-resistant soft sealing single seat valve according to claim 1, wherein: go up the top of barrel (4) and be equipped with upper cover (3), the bottom and the upper barrel (4) structure as an organic whole of upper cover (3), the central authorities of upper cover (3) are equipped with the through-hole, and the top of a side edge of upper cover (3) is equipped with depression bar installation fixed bolster (10), depression bar installation fixed bolster (10) welding is in the position that upper cover (3) upper surface is close to the edge, the top central authorities of upper cover (3) are equipped with locking and detain (2), are equipped with depression bar installation through-hole on the vertical direction in inside that locking was detained (2), the top of upper cover (3) is equipped with and presses handle (1).

3. A fire-resistant soft sealing single seat valve according to claim 1, wherein: be equipped with hard flashboard (16) and soft flashboard (17) on flashboard mechanism (5), hard flashboard (16) become "door" style of calligraphy, and the central authorities of hard flashboard (16) are equipped with soft flashboard (17), welded connection between hard flashboard (16) and soft flashboard (17), the top central authorities of soft flashboard (17) are equipped with depression bar fixed connection groove (14), and the both sides of soft flashboard (17) are close to the position symmetry at edge and are equipped with spacing protruding muscle (15), spacing protruding muscle (15) with soft flashboard (17) structure as an organic whole, soft flashboard (17), the bottom of hard flashboard (16) are semi-circular.

4. A fire-resistant soft sealing single seat valve according to claim 1, wherein: the inside of the flashboard mechanism mounting groove in the bottom barrel (8) is provided with a flashboard limiting moving clamping groove, and the edges of two sides of the soft flashboard (17) and the hard flashboard (16) are both arranged in the flashboard limiting moving clamping groove.

5. A fire-resistant soft sealing single seat valve according to claim 3, wherein: the inside of inside depression bar fixed connection groove (14) of soft flashboard (17) is equipped with depression bar (12), and the bottom outside of depression bar (12) is equipped with the screw thread, through fixed connection between the screw thread head of depression bar (12) between depression bar (12) and soft flashboard (17), install in depression bar (12) in vertical direction go up barrel (4), the inside of the depression bar groove (11) of middle barrel (9) inside central authorities.

6. A fire-resistant soft sealing single seat valve according to claim 1, wherein: go up barrel (4), middle barrel (9), through fixing bolt fixed connection between the fixed connection limit between bottom barrel (8), go up barrel (4), the seam crossing that middle barrel (9) and bottom barrel (8) are connected is equipped with O type sealing rubber packing ring.

7. A fire-resistant soft sealing single seat valve according to claim 2, wherein: one end of the pressing handle (1) is movably connected with the top end of the pressing rod (12) through a connecting shaft, and the center of the pressing handle (1) is arranged on a pressing rod mounting and fixing support (10) above the upper barrel end cover (3).