CN209294414U

CN209294414U - A kind of shut-off valve with throttling filtering function

Info

Publication number: CN209294414U
Application number: CN201821813570.2U
Authority: CN
Inventors: 徐向往
Original assignee: Ruian Sanhe Valve Co Ltd
Current assignee: Ruian Sanhe Valve Co Ltd
Priority date: 2018-11-06
Filing date: 2018-11-06
Publication date: 2019-08-23
Anticipated expiration: 2028-11-06

Abstract

The utility model discloses a kind of shut-off valves with throttling filtering function, including handwheel, valve rod and bracket, bracket is connected on the inside of the handwheel, the center of the bracket is connected with valve rod, the outer wall of the valve rod is machined with external screw thread, and the outside of first conduit and the second conduit is connected with first flange disk.The shut-off valve with throttling filtering function, allow spool by blocking the communicating a little to carry out water flow cut-off of the first conduit and the second conduit, the position of control valve core and throttling element can be passed through, and control the exposing size at the connection of the first conduit and the second conduit, to control flow, to play the role of throttling, again because the working method of spool is push type cut-off, rather than packed type ends, so water flow mitigates the abrasion of spool, extend service life, the solid particulate matter that may contain in water is filtered further through strainer, prevent solid particulate matter from shut-off valve is resulted in blockage or being damaged.

Description

A kind of shut-off valve with throttling filtering function

Technical field

The utility model relates to valve technology field, specially a kind of shut-off valve with throttling filtering function.

Background technique

Shut-off valve is a kind of most popular valve, and Lift is little, and manufacture is easy, easy to maintenance, is not only applicable in In mesolow, and it is suitable for high pressure, very popular, the closure principle of shut-off valve is, by valve rod pressure, to make valve clack sealing surface Fitted closely with the intracorporal sealing valve port face of valve, prevent flow of media, shut-off valve currently on the market in operation, valve top cover with It is easy to produce abrasion between valve bottom cover, causes connection not close, influences leakproofness and service life, and the spool of traditional shut-off valve It was running long afterwards, was being worn under flow action, and be easy to influence leakproofness, and be only applicable to standard-sized sheet or full pass, can not accomplish The function of throttling, traditional shut-off valve can only be guided and be ended to water flow, if there is solid particulate matter in water flow, can be easy to block Damage shut-off valve.

Utility model content

The purpose of this utility model is to provide a kind of shut-off valves with throttling filtering function, to solve above-mentioned background skill The problem of being proposed in art.

To achieve the above object, the utility model provides the following technical solutions: a kind of cut-off with throttling filtering function Valve, including handwheel, valve rod and bracket are connected with bracket on the inside of the handwheel, and the center of the bracket is connected with valve rod, described The outer wall of valve rod is machined with external screw thread, and the outer wall of the valve rod is equipped with valve top cover, and the inwall processing of the valve top cover has interior spiral shell Line, the internal screw thread and external screw thread are threadedly coupled, and the bottom end of the valve top cover is connected with end cap, and the bottom end of the end cap is connected with Valve bottom cover is closely mutually posted in flexible graphite sealing ring, the bottom end of the graphite-seal ring, and the valve top cover passes through screw rod and valve bottom Lid is threadedly coupled, and the outer wall upper and lower ends of the screw rod are respectively sleeved on gasket and nut, and the gasket and screw clearance cooperate, The nut is connect with screw flight, and the bottom end of the gasket and the top of valve top cover fit closely, the top of the nut with The bottom end of valve bottom cover fits closely, and has been respectively and fixedly connected with the first conduit and the second conduit, institute at left and right sides of the bottom end of the valve bottom cover It states the first conduit and the second conduit is affixed, the bottom end of the valve rod is connected with plunger, and the plunger and valve top cover and valve bottom cover are equal Clearance fit, the bottom end of the plunger are connected with spool, and the spool and the first catheter interstitial cooperate, and the bottom end of the spool is solid It is connected to throttling element, the outside of first conduit and the second conduit is connected with first flange disk.

Preferably, the first flange disk is connected with steel ring and second flange disk, the steel ring and by screw flight One ring flange and second flange disk fit closely, and the outer wall upper and lower ends of the screw rod are respectively sleeved on gasket and nut, described The bottom end of gasket and the left-hand end of first flange disk fit closely, and the top of the nut is closely pasted with the right side of second flange disk It closes, the inner wall of the steel ring is connected with strainer, and the inner wall of the left side second flange disk is connected with water inlet pipe, right side described second The inner wall of ring flange is connected with drainpipe.

Preferably, the affixed rubber sleeve of the outer wall of the handwheel.

Preferably, the first strut is connected at left and right sides of the top of first conduit.

Preferably, the bottom end of first conduit is connected with the second strut, the right side of second strut and the second conduit It is affixed.

Compared with prior art, the utility model has the beneficial effects that should pass through with the shut-off valve of throttling filtering function The cooperation of valve top cover, end cap, flexible graphite sealing ring and valve bottom cover allows valve top cover to be close-coupled at one with valve bottom cover It rises, while mitigating the abrasion between valve top cover and valve bottom cover by flexible graphite sealing ring, increase service life, pass through valve top The cooperation of lid, valve bottom cover and valve rod, allows valve rod to do the movement on vertical direction in the inner cavity of valve top cover and valve bottom cover, To drive plunger, spool and throttling element to do the movement on vertical direction, led by spool, throttling element, the first conduit and second The cooperation of pipe allows spool by blocking the communicating a little to carry out water flow cut-off of the first conduit and the second conduit, can be with By the position of control valve core and throttling element, and the exposing size at the connection of the first conduit and the second conduit is controlled, to control Flow processed, thus play the role of throttling, and because the working method of spool is push type cut-off, rather than packed type is cut Only, so water flow mitigates the abrasion of spool, service life is extended, further through strainer to may contain in water Solid particulate matter is filtered, and prevents solid particulate matter from shut-off valve is resulted in blockage or being damaged.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the attachment structure schematic diagram of the valve top cover of Fig. 1, valve bottom cover, end cap and flexible graphite sealing ring；

Fig. 3 is the attachment structure schematic diagram of the plunger of Fig. 1, throttling element, the first conduit and the second conduit；

Fig. 4 is the attachment structure schematic diagram of the first flange disk of Fig. 1, second flange disk, steel plate and screw rod.

In figure: 1, handwheel, 2, valve rod, 3, internal screw thread, 4, valve top cover, 5, end cap, 6, valve bottom cover, the 7, first strut, 8, into Water pipe, 9, strainer, 10, gasket, 11, steel ring, 12, spool, the 13, first conduit, 14, plunger, the 15, second strut, the 16, first method Blue disk, 17, second flange disk, 18, drainpipe, 19, nut, 20, screw rod, 21, external screw thread, 22, rubber sleeve, 23, bracket, 24, Second conduit, 25, flexible graphite sealing ring, 26, throttling element.

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. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of shut-off valve with throttling filtering function, Including handwheel 1, valve rod 2 and bracket 23, the inside of handwheel 1 is connected with bracket 23, so that bracket 23 is fixed together with handwheel 1, The center of bracket 23 is connected with valve rod 2, so that valve rod 2 is fixed together with bracket 23, the outer wall of valve rod 2 is machined with external screw thread 21, the outer wall of valve rod 2 is equipped with valve top cover 4, and the inwall processing of valve top cover 4 has internal screw thread 3,21 screw thread of internal screw thread 3 and external screw thread Connection allows valve rod 2 by the cooperation of internal screw thread 3 and external screw thread 21 to carry out vertical side in the inner cavity of valve top cover 4 Upward movement, the bottom end of valve top cover 4 are connected with end cap 5, and the bottom end of end cap 5 is connected with flexible graphite sealing ring 25, and graphite is close Valve bottom cover 6 is closely mutually posted in the bottom end of seal ring 25, and valve top cover 4 is threadedly coupled by screw rod 20 with valve bottom cover 6, so that valve top cover 4 It links together with valve bottom cover 6, the outer wall upper and lower ends of screw rod 20 are respectively sleeved on gasket 10 and nut 19, gasket 10 and screw rod 20 clearance fits, nut 19 are threadedly coupled with screw rod 20, and the bottom end of gasket 10 and the top of valve top cover 4 fit closely, gasket 10 To protect valve top cover 4, the top of nut 19 and the bottom end of valve bottom cover 6 are fitted closely, to connect valve top cover 4 and valve bottom cover 6 It connects more firm, has been respectively and fixedly connected with the first conduit 13 and the second conduit 24, the first conduit 13 at left and right sides of the bottom end of valve bottom cover 6 It is affixed with the second conduit 24, so that the inner cavity connection of the first conduit 13 and the second conduit 24, the bottom end of valve rod 2 are connected with plunger 14, plunger 14 and valve top cover 4 and the equal clearance fit of valve bottom cover 6 allow plunger 14 to carry out vertical direction together with valve rod 2 On movement, the bottom end of plunger 14 is connected with spool 12,13 clearance fit of spool 12 and the first conduit, allow spool 12 with Plunger 14 carry out the movement on vertical direction together, the bottom end of spool 12 is connected with throttling element 26, by adjusting throttling element 26 Height and control the area of the first conduit 13 with the phase contact of the second conduit 24, thus water flow, the first conduit 13 and second The outside of conduit 24 is connected with first flange disk 16, and first flange disk 16 is threaded with steel ring 11 and second by screw rod 20 Ring flange 17, steel ring 11 are fitted closely with first flange disk 16 and second flange disk 17, so that first flange disk 16 and steel ring 11 It links together with second flange disk 17, the outer wall upper and lower ends of screw rod 20 are respectively sleeved on gasket 10 and nut 19, gasket 10 With 20 clearance fit of screw rod, nut 19 is threadedly coupled with screw rod 20, and the bottom end of gasket 10 and the left-hand end of first flange disk 16 are tight Closely connected conjunction, to protect first flange disk 16, the top of nut 19 and the right side of second flange disk 17 fit closely gasket 10, use To connect first flange disk 16, steel ring 11 and second flange disk 17 more firm, the inner wall of steel ring 11 is connected with strainer 9, To be filtered to the water flow of circulation, the inner wall of left side second flange disk 17 is connected with water inlet pipe 8, to introduce the water into first The inner wall of conduit 13, the right side second flange disk 17 is connected with drainpipe 18, water to be drawn from the second conduit 24, hand The affixed rubber sleeve 22 of outer wall of wheel 1, to increase the frictional force on handwheel 1, the top left and right sides of the first conduit 13 is solid It is connected to the first strut 7, mitigates the vibration that the first conduit 13 is generated by the flowing of water flow inside, the bottom end of the first conduit 13 is affixed There is the second strut 15, the right side of the second strut 15 and the second conduit 24 are affixed, mitigate the second conduit 24 because of the flowing of water flow inside And the vibration generated.

When staff needs the shut-off valve work with throttling filtering function, valve top cover 4 passes through screw rod 20 and spiral shell The cooperation of mother 19 links together with valve bottom cover 6, makes valve top cover 4 and valve bottom cover 6 by end cap 5 and flexible graphite sealing ring 25 It fits closely, while mitigating the abrasion between valve top cover and valve bottom cover by flexible graphite sealing ring, increase service life, it will Water injects water inlet pipe 8, and water flow carries out primary filtration via strainer 9, prevents the particulate matter in water from blocking damage shut-off valve, Zhi Houshui Stream enters the first conduit 13, rotates handwheel 1, so that valve rod 2 is under the cooperation of internal screw thread 3 and external screw thread 21, in valve top cover 4 and valve In the inner cavity of bottom cover 6, the movement on vertical direction is carried out, so that plunger 14, spool 12 and throttling element 26 be driven to carry out vertical side Upward movement, 12 gland of control valve core is fitted closely in the interface of the first conduit 13 and the second conduit 24, thus to passing Water flow is ended, so that the water flow in the first conduit 13 can not pass into the second conduit 24, passes through control valve core 12 and section The height of part 26 is flowed, so that the interface surface of the first conduit 13 of control and the second conduit 24 connects, so that control is from the first conduit 13 Into water flow in the second conduit 24, water flow is filtered via strainer into 9 rows again later, and water flow is via 18 row of drainpipe later Out, traditional 12 packed type of spool cut-off is taken leave of, the cut-off of 12 push type of spool is selected, alleviates water flow for the mill of spool 12 Damage avoids the problem of can not limiting water flow after spool 12 is worn.

In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.

In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of shut-off valve with throttling filtering function, including handwheel (1), valve rod (2) and bracket (23), the handwheel (1) Inside be connected with bracket (23), the center of the bracket (23) is connected with valve rod (2), it is characterised in that: the valve rod (2) Outer wall is machined with external screw thread (21), and the outer wall of the valve rod (2) is equipped with valve top cover (4), the inwall processing of the valve top cover (4) Have internal screw thread (3), the internal screw thread (3) and external screw thread (21) are threadedly coupled, and the bottom end of the valve top cover (4) is connected with end cap (5), the bottom end of the end cap (5) is connected with flexible graphite sealing ring (25), the close phase in bottom end of the graphite-seal ring (25) It posts valve bottom cover (6), the valve top cover (4) is threadedly coupled by screw rod (20) with valve bottom cover (6), the outer wall of the screw rod (20) Upper and lower ends are respectively sleeved on gasket (10) and nut (19), the gasket (10) and screw rod (20) clearance fit, the nut (19) it is threadedly coupled with screw rod (20), the bottom end of the gasket (10) and the top of valve top cover (4) fit closely, the nut (19) bottom end on top and valve bottom cover (6) fits closely, and has been respectively and fixedly connected with first at left and right sides of the bottom end of the valve bottom cover (6) Conduit (13) and the second conduit (24), first conduit (13) and the second conduit (24) are affixed, and the bottom end of the valve rod (2) is solid It is connected to plunger (14), the plunger (14) and valve top cover (4) and valve bottom cover (6) equal clearance fit, the bottom end of the plunger (14) It is connected with spool (12), the spool (12) and the first conduit (13) clearance fit, the bottom end of the spool (12) is connected with section It flows part (26), the outside of first conduit (13) and the second conduit (24) is connected with first flange disk (16).

2. a kind of shut-off valve with throttling filtering function according to claim 1, it is characterised in that: the first flange Disk (16) is threaded with steel ring (11) and second flange disk (17), the steel ring (11) and first flange disk by screw rod (20) (16) it is fitted closely with second flange disk (17), the bottom end of the gasket (10) and the left-hand end of first flange disk (16) are closely pasted It closes, is fitted closely on the right side of the top and second flange disk (17) of the nut (19), the inner wall of the steel ring (11) is connected with The inner wall of strainer (9), the left side second flange disk (17) is connected with water inlet pipe (8), the right side second flange disk (17) Inner wall is connected with drainpipe (18).

3. a kind of shut-off valve with throttling filtering function according to claim 1, it is characterised in that: the handwheel (1) The affixed rubber sleeve of outer wall (22).

4. a kind of shut-off valve with throttling filtering function according to claim 1, it is characterised in that: first conduit (13) the first strut (7) are connected at left and right sides of top.

5. a kind of shut-off valve with throttling filtering function according to claim 1, it is characterised in that: first conduit (13) bottom end is connected with the second strut (15), and the right side of second strut (15) and the second conduit (24) are affixed.