CN205618703U

CN205618703U - Stop valve

Info

Publication number: CN205618703U
Application number: CN201620437645.6U
Authority: CN
Inventors: 李云伟; 陈哲
Original assignee: Zhejiang Neoval Valve Co Ltd
Current assignee: Zhejiang Neoval Valve Co Ltd
Priority date: 2016-05-16
Filing date: 2016-05-16
Publication date: 2016-10-05
Anticipated expiration: 2026-05-16

Abstract

The utility model discloses a stop valve has solved the stop valve among the prior art and has makeed the workman to close the harder condition of valve, and its technical scheme main points are stop valve, including valve body, valve gap, valve clack and valve rod, the valve gap is connected with the valve body, the valve body on seted up flow hole, the valve body on seted up with valve clack assorted spout, spout and flow hole intercommunication, the valve rod wear to locate the valve gap and rotate with the valve gap and be connected, valve rod and valve gap axial relatively fixed, the valve rod move along the spout through rotating assembly drive valve clack and realize opening or the shutoff of flow hole, reached the purpose that the workman of being convenient for closed the valve.

Description

A kind of stop valve

Technical field

This utility model relates to a kind of valve, more specifically, it relates to a kind of stop valve.

Background technology

Stop valve, also known as pipe valve valve, belongs to forced seal formula valve, so when valve closing, it is necessary to apply pressure to flap, do not leak with forced seal face.

nullAt present，The Chinese patent of Publication No. CN105443774A discloses the stop valve that a kind of efficient dustproof seals，It includes valve body、Valve gap、Axle sleeve、Valve stem nut、Valve rod、Spool and handwheel，Conical flow port is offered in the valve pocket of described valve body，The upper end of described valve body connects valve gap，Described valve gap is connected with valve body by some bolt fasteners，One axle sleeve is installed in described valve gap，A valve stem nut is connected on described axle sleeve，Described valve rod passes valve stem nut and axle sleeve，And threaded with valve stem nut，The end of described valve rod is fixing connects spool，The upper end of described valve rod connects a handwheel，Described spool is tapered round end structure，Some tapered sealing rings it are provided with on described spool，Described valve gap is provided with black box with the junction of valve body，The end of described axle sleeve is provided with dust-proof sealing device，Described valve stem nut is provided with dust preventing component on the joint face of axle sleeve.

The stop valve structure that this efficient dustproof seals is simple, but current are by when entering valve below spool, the resistance overcome required for operating physical force, be valve rod and filler frictional force with by thrust produced by the pressure of current, operating physical force required for closing valve is bigger than the power of valve opening door, makes workman cause high effort for when closing valve.

Utility model content

The deficiency existed for prior art, this utility model is to provide a kind of stop valve, by valve rod is rotated, valve rod is made to drive flap to move along chute by rotary components, flap is made gradually to block communication port, the thrust making current produce flap is changed from small to big, and reaches to make workman realize labour-saving purpose when closing valve.

For achieving the above object, this utility model provides following technical scheme: a kind of stop valve, including valve body, valve gap, flap and valve rod, described valve gap is connected with valve body, communication port is offered on described valve body, the chute matched with flap is offered on described valve body, described chute connects with communication port, described valve rod is arranged in valve gap and is rotationally connected with valve gap, described valve rod and valve gap are axially opposing fixing, and described valve rod moves unlatching or the closure realizing communication port by rotary components driving flap along chute.

By using technique scheme, by valve rod is rotated, valve rod is made to drive flap to move along chute by rotary components, flap is made gradually to block communication port, the thrust that flap is caused by the water flowed out from communication port is increased by the increase of flap closure area, so that workman close valve required for operating physical force change from small to big so that workman close valve can be laborsaving；And current to the thrust direction of flap be with communication port towards identical, i.e. along the axial of communication port, flap is applied thrust, and workman is to drive flap moving radially along communication port, thus further reduce the required operating physical force applied of workman, thus reduce workman further and close the required power applied of valve.

This utility model is further arranged to: described rotary components includes that cam and connecting rod, described cam are connected with valve rod, and described connecting rod two ends are hinged with cam, flap respectively.

By using technique scheme, cam rotates along with valve rod, cam can be moved with drivening rod, the movement of connecting rod can drive flap to move along chute, make flap can along chute gradually by communication port block, it is achieved thereby that workman can with less power can be by valve closing.

This utility model is further arranged to: described rotary components includes that screw thread dish and connecting rod, described screw thread dish are connected with valve rod, and described connecting rod is connected with flap and arranges with the conflict of screw thread dish.

By using technique scheme, screw thread dish rotates along with the rotation of valve rod, while connecting rod is moved along the screw thread on screw thread dish, connect and drive flap to be moved along chute, so that flap can along chute gradually by communication port block, it is achieved thereby that workman can with less power can be by valve closing.

This utility model is further arranged to: be provided with the conducting subassembly for valve rod location on described valve body.

By using technique scheme, conducting subassembly can avoid valve rod to make valve rod be rotated at random the momentum effect of flap because of current, promotes job stability.

This utility model is further arranged to: described conducting subassembly includes the drive rod engaging each other setting and rotates wheel, and the described wheel that rotates is rotationally connected with valve body and is connected with valve rod, and described drive rod is rotationally connected with valve body.

By using technique scheme, drive rod rotates and rotation wheel can be driven to rotate, and rotates wheel belt ovable valve stem and rotates, owing to drive rod engages each other with rotating wheel, drive rod and rotation wheel is made to have certain self-locking performance so that valve rod is difficult to rotate because of the momentum effect of current.

This utility model is further arranged to: is provided with on described drive rod and is easy to the handwheel that workman drives.

By using technique scheme, the setting of handwheel is easy to by hand wheel rotating drive rod, thus has been further functioned as and made workman labour-saving purpose.

This utility model is further arranged to: offer antiskid groove on described handwheel.

By using technique scheme, antiskid groove adds workman and drives the frictional force required for handwheel, so that workman drives handwheel more convenient.

This utility model is further arranged to: be rotatably connected to grip part on described handwheel.

By using technique scheme so that workman can drive handwheel by rotating grip part, so that workman rotates handwheel more quickly, improving production efficiency.

This utility model is further arranged to: be provided with sealing ring on described flap.

By using technique scheme, arranging of sealing ring can be avoided current to flow out from the gap between communication port and flap, improve the seal of valve.

This utility model is further arranged to: be provided with elastomeric pad between described valve gap and valve body.

By using technique scheme, elastomeric pad can increase the frictional force between valve gap and valve body so that the connection between valve gap and valve body is more firm, thus reduces the valve gap probability by water flow pressure jack-up.

In sum, this utility model has the advantages that

By rotating grip part, grip part is made to drive handwheel to rotate, make handwheel that drive rod can be driven to rotate, drive rod drives and rotates wheel rotation, then rotation wheel belt ovable valve stem is made to rotate, valve rod drives flap to move along chute by rotary components, communication port can gradually be blocked by flap, along with flap moving radially along communication port, make workman drive flap required for operating physical force will not because current to flap produce axial pressure and be gradually increased, so that workman can drive flap to move, by valve closing in less power.

Accompanying drawing explanation

Fig. 1 is appearance assumption diagram of the present utility model；

Fig. 2 is the vertical section schematic diagram of embodiment 1；

Fig. 3 is embodiment 1 cam structural representation；

Fig. 4 is the vertical section schematic diagram of embodiment 2；

Fig. 5 is screw thread dish structural representation in embodiment 2.

Reference: 1, valve body；11, water inlet；12, outlet；13, communication port；14, chute；15, valve rod；151, sealing ring；16, flap；2, valve gap；21, elastomeric pad；31, bolt；32, nut；41, bearing；42, wheel is rotated；43, drive rod；44, handwheel；441, antiskid groove；45, grip part；51, cam；52, connecting rod；53, stock；61, screw thread dish；611, screw thread groove.

Detailed description of the invention

Referring to figs. 1 through Fig. 5, this utility model one stop valve is described further.

Embodiment 1: as shown in Figure 1, Figure 2 and Figure 3, including the valve body 1 connected by bolt 31 and valve gap 2, elastomeric pad 21 it is provided with between valve body 1 and valve gap 2, in order to increase the frictional force of screw thread between bolt 31 and nut 32, make nut 32 can fix on bolt 31 more firm, make valve gap 2 be difficult to because of vibrations and depart from valve body 1.

As shown in Figures 2 and 3, the opening of the right-hand member of valve body 1 horizontal direction is water inlet 11, and the opening of left end is outlet 12, offers a circular communication port 13 between outlet 12 and water inlet 11；Communication port 13 is axially arranged in vertical direction；Being further opened with a chute arranged in horizontal direction 14 on valve body 1, the bottom surface of chute 14 connects with communication port 13；Being placed with a flap 16 matched with chute 14 in chute 14, flap 16 is arranged in cylinder, is fixed with sealing ring 151 on the outer wall of flap 16, and flap 16 slides along the long side direction of chute 14.

Being fixed with a stock 53 placed in vertical direction on flap 16, the upper end thereof of stock 53 has a connecting rod 52, and connecting rod 52 is arranged in cylinder, and connecting rod 52 is hinged with a cam 51 away from one end of stock 53, and cam 51 is placed in above the level of chute 14；Cam 51 is fixedly connected with a valve rod 15, valve rod 15 arranges in cylinder and vertically places, connecting rod 52 can not be on the axle center of valve rod 15 with the hinged place of cam 51, valve rod 15 is rotationally connected by bearing 41 with valve gap 2, sealing ring 151 it is arranged with, it is to avoid current flow out in the thin seam from bearing 41 on valve rod 15.

On valve rod 15 one end away from cam 51 sheathed be fixed with one rotate wheel 42, in the present embodiment, rotating wheel 42 is worm gear, worm gear is engaged with a drive rod 43, drive rod 43 is worm screw, worm screw is rotationally connected by bearing (not shown) with valve gap 2, worm screw is fixed with circular handwheel 44 away from one end of worm gear, as shown in Figure 1, multiple antiskid groove 441 is offered on the cylindrical of handwheel 44, the axial uniform setting of 441 handwheels 44 of antiskid groove, handwheel 44 is also rotatably connected to a grip part 45, it is easy to workman and rotates handwheel 44, improving production efficiency.

During use, grip part 45 is rotated by workman, grip part 45 drives handwheel 44 to rotate, handwheel 44 is made to drive worm screw to rotate, worm screw drives worm gear to rotate, so that valve rod 15 rotates along with the rotation of worm gear, as shown in Figure 2, cam 51 rotates along with the rotation of valve rod 15, so that cam 51 drivening rod 52 is subjected to displacement, connecting and pull stock 53 to move, stock 53 drives flap 16 to move along the long side direction of chute 14, communication port 13 is gradually blocked by flap 16, so that the water that water inlet 11 imports is ended by flap 16；And in the middle of the process that workman rotates grip part 45, the lower surface of flap 16 from bottom to top is applied to upward pressure by current, the inwall of chute 14 applies the support force of vertical direction to the upper surface of flap 16, pressure is offset with support force, make workman drive flap 16 to move and can realize labour-saving effect, workman rotates the required operating physical force applied of handwheel 44, the most only overcome the frictional force that flap 16 and chute 14 inwall produce plus the summation producing frictional force between worm and gear, and two frictional force are added the resistance formed and are far smaller than the impulsive force of current, thus reached labour-saving purpose.

Embodiment 2: a kind of stop valve, as shown in Figure 1, Figure 4 and Figure 5, is in place of the difference with embodiment 1, cam 51 is replaced by screw thread dish 61(and sees Fig. 1), as it is shown in figure 5, screw thread dish 61 is in disk form, screw thread dish 61 offers the screw thread groove 611 in mosquito-repellent incense-shaped；The L-shaped setting of connecting rod 52, one end of connecting rod 52 is fixed on flap 16, and the other end is located in screw thread groove 611 so that connecting rod 52 can be conflicted with the inwall of screw thread groove 611 and is connected.

During use, as described in Example 1, workman is rotated by grip part 45 band ovable valve stem 15, as shown in Figure 5, screw thread dish 61 can be made to rotate by the rotation of valve rod 15, then make connecting rod 52 be moved along the screw thread groove 611 on screw thread dish 61, by so that connecting rod 52 can pull flap 16 to move along the long side direction of chute 14, communication port 13 gradually can be blocked by flap 16, current are ended；Workman drives handwheel 44 to rotate the operating physical force of required applying by grip part 45, the most only overcome the frictional force that flap 16 and chute 14 inwall produce plus the summation producing frictional force between worm and gear, and two frictional force are added the resistance formed and are far smaller than the impulsive force of current, thus reach labour-saving purpose.

Compared with Example 2, slightly complicated for the screw thread dish 61 structure relatively cam 51 of embodiment 2, production cost is higher, but screw thread dish 61 drivening rod 52 moves the most steady, can increase the service life of connecting rod 52 for embodiment 1.

The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to above-described embodiment, and all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under this utility model principle premise, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims

1. a stop valve, including valve body (1), valve gap (2), flap (16) and valve rod (15), described valve gap (2) is connected with valve body (1), communication port (13) is offered on described valve body (1), it is characterized in that: on described valve body (1), offer the chute (14) matched with flap (16), described chute (14) connects with communication port (13), described valve rod (15) is arranged in valve gap (2) and is rotationally connected with valve gap (2), described valve rod (15) is axially opposing with valve gap (2) fixing, described valve rod (15) drives flap (16) along mobile unlatching or the closure realizing communication port (13) of chute (14) by rotary components.

A kind of stop valve the most according to claim 1, it is characterized in that: described rotary components includes cam (51) and connecting rod (52), described cam (51) is connected with valve rod (15), and described connecting rod (52) two ends are hinged with cam (51), flap (16) respectively.

A kind of stop valve the most according to claim 1, it is characterized in that: described rotary components includes screw thread dish (61) and connecting rod (52), described screw thread dish (61) is connected with valve rod (15), and described connecting rod (52) is connected with flap (16) and arranges with screw thread dish (61) conflict.

4. according to a kind of stop valve described in Claims 2 or 3, it is characterized in that: on described valve body (1), the conducting subassembly positioned for valve rod (15) is installed.

A kind of stop valve the most according to claim 4, it is characterized in that: described conducting subassembly includes engaging each other the drive rod (43) of setting and rotates wheel (42), the described wheel (42) that rotates is rotationally connected with valve body (1) and is connected with valve rod (15), and described drive rod (43) is rotationally connected with valve body (1).

A kind of stop valve the most according to claim 5, is characterized in that: be provided with on described drive rod (43) and be easy to the handwheel (44) that workman drives.

A kind of stop valve the most according to claim 6, is characterized in that: offer antiskid groove (441) on described handwheel (44).

A kind of stop valve the most according to claim 7, is characterized in that: be rotatably connected to grip part (45) on described handwheel (44).

A kind of stop valve the most according to claim 4, is characterized in that: be provided with sealing ring (151) on described flap (16).

A kind of stop valve the most according to claim 9, is characterized in that: be provided with elastomeric pad (21) between described valve gap (2) and valve body (1).