CN212745184U

CN212745184U - Efficient slowly-closed check valve

Info

Publication number: CN212745184U
Application number: CN202021423488.6U
Authority: CN
Inventors: 陈燕明; 陈燕清; 石少芳; 王燕兰
Original assignee: FUJIAN XINDA VALVE CO LTD
Current assignee: FUJIAN XINDA VALVE CO LTD
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-03-19
Anticipated expiration: 2030-07-20

Abstract

The utility model relates to an efficient slow-closure check valve, which comprises a valve body, a channel and a fixed valve cover, wherein an inner valve cover is arranged on the inner side of the top of the valve body, filler is filled outside the inner valve cover and inside the valve body, the fixed valve cover is arranged on the top of the inner valve cover and inside the valve body, the channel is arranged inside the valve body, the two ends of the channel are respectively arranged into a water inlet end and a water outlet end, a connecting lug is arranged on the inner wall of the channel, and the inner side of one end of the connecting lug is rotatably arranged with the top; after the end of intaking when the valve body got into water, it acted on the connecting plate, and then driven the swivel mount and rotatory on the engaging lug, the end of intaking this moment switches on with the passageway, and during swivel mount counter-clockwise turning, the rubber piece on the supporting seat at first with the contact of dashpot inner wall, play preliminary buffering through the rubber piece, the supporting seat drives the cover seat simultaneously and removes along the bracing piece including built-in inslot, compression spring plays the secondary buffering through the elastic deformation of spring, avoids swivel mount and the direct rigid contact in inclined plane.

Description

Efficient slowly-closed check valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to an efficient slow-closure check valve.

Background

The check valve is a valve which is used for preventing the medium from flowing backwards by automatically opening and closing a valve clack depending on the flowing of the medium.

When the existing check valve is used, after water enters from a water inlet end, an instant acting force generated by water flow acts on a valve clack part to drive a rotating seat to rotate quickly, so that the existing check valve is easy to impact the inner wall of a valve body; meanwhile, when the backflow is prevented, the valve clack rotates and falls through the gravity of the valve clack part, and the falling efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides an efficient slow-closing check valve, which solves the problem that when the existing check valve is used, after the water inlet end enters water, the instantaneous acting force generated by water flow acts on the valve clack part to drive the rotary seat to rotate rapidly, so that the valve body is easy to impact the inner wall of the valve body; meanwhile, when the backflow is prevented, the valve clack rotates and falls through the gravity of the valve clack part, and the falling efficiency is low.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-efficiency slow-closing check valve comprises a valve body, a channel and a fixed valve cover, wherein an inner valve cover is arranged on the inner side of the top of the valve body, filler is filled outside the inner valve cover and inside the valve body, and the fixed valve cover is arranged on the top of the inner valve cover and inside the valve body;

the inside passageway of having seted up of valve body, the passageway both ends set up respectively to intake end and play water end, the engaging lug is installed to the passageway inner wall, the inboard installation that rotates on engaging lug one end and swivel mount top, the swivel mount is close to the distolateral connecting plate of installing of intaking, the connecting plate is close to distolateral top and the top of intaking, and is located the intake end outside and all installs the valve clack, the swivel mount is close to the distolateral inside built-in groove of having seted up of water, the inside horizontal installation in built-in groove has the bracing piece, bracing piece outside cover is equipped with the spring, the bracing piece outside just is located spring one end and installs the cover seat, the supporting seat is installed in the swivel.

Preferably, the fixed valve cover is internally penetrated by a first bolt, and the bottom end of the first bolt is in threaded connection with the inner valve cover.

Preferably, the top end of the rotary seat is an arc-shaped end, and the arc-shaped end is rotatably connected with the connecting lug through a rotating shaft.

Preferably, the valve clack is close to the water inlet end side and all inlays and installs annular rubber packing ring, and the diameter of annular rubber packing ring is greater than the water inlet end diameter.

Preferably, the second bolt is installed in all running through in swivel mount bottom and top, and second bolt and connecting plate threaded connection.

Preferably, an inclined plane is arranged in the valve body and above the inner end of the water outlet end, a buffer groove is formed in the middle of the inclined plane, and the buffer groove is matched with the rubber block.

The utility model has the advantages that: when the water inlet end of the valve body enters water, the water inlet end acts on the connecting plate to further drive the rotary seat to rotate on the connecting lug, the water inlet end is communicated with the channel, when the rotary seat rotates anticlockwise, the rubber block on the supporting seat is firstly contacted with the inner wall of the buffer groove, primary buffering is achieved through the rubber block, meanwhile, the supporting seat drives the sleeve seat to move in the built-in groove along the supporting rod, the spring is compressed, secondary buffering is achieved through elastic deformation of the spring, and direct rigid contact between the rotary seat and the inclined plane is avoided;

when the water end of play water cut off, the spring reconversion of this moment built-in inslot accelerates swivel mount clockwise rotation through elastic deformation, can realize fast that valve clack and rubber packing ring and the inner laminating of intaking the end realize the separation and prevent the effect against the current, has improved the efficiency that the check valve prevented against the current.

Drawings

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

FIG. 2 is a cross-sectional view of the swivel mount of the present invention;

fig. 3 is an enlarged view of a region a in fig. 1 according to the present invention.

Illustration of the drawings:

1. a valve body; 2. a channel; 3. a water inlet end; 4. a water outlet end; 5. connecting lugs; 6. rotating; 7. an inner valve cover; 8. fixing the valve cover; 9. a first bolt; 10. a filler; 11. a connecting plate; 12. a valve flap; 13. a rubber gasket; 14. a second bolt; 15. a built-in groove; 16. a support bar; 17. a spring; 18. a sleeve seat; 19. a supporting seat; 20. a rubber block; 21. a bevel; 22. a buffer tank.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Specific examples are given below.

Referring to fig. 1 to 3, a high-efficiency slow-closing check valve comprises a valve body 1, a channel 2 and a fixed valve cover 8, wherein an inner valve cover 7 is installed on the inner side of the top of the valve body 1, a filler 10 is filled on the outer side of the inner valve cover 7 and located inside the valve body 1, and the fixed valve cover 8 is installed on the top of the inner valve cover 7 and located inside the valve body 1;

1 inside passageway 2 of having seted up of valve body, 2 both ends of passageway set up respectively to intake end 3 and play water end 4, engaging lug 5 is installed to 2 inner walls of passageway, the inboard and 6 top rotations installations on swivel joint of engaging lug 5 one end, swivel joint 6 is close to 3 sides of the end of intaking and installs connecting plate 11, connecting plate 11 is close to 3 side tops of the end of intaking and the top, and be located the 3 outsides of the end of intaking and all install valve clack 12, swivel joint 6 is close to 4 inside built-in grooves 15 of having seted up in the side of play water end, the inside horizontal installation in built-in groove 15 has

bracing piece

16, 16 outside covers of bracing piece are equipped with spring 17, the cover seat 18 is installed in the bracing piece 16 outsides and is located spring 17 one end.

As an embodiment of the utility model, fixed valve gap 8 is inside to run through

first bolt

9, and 9 bottoms of first bolt and 7 threaded connection of interior valve gap, is convenient for with fixed valve gap 8 and 7 seal installation of interior valve gap.

As an embodiment of the utility model, 6 tops of swivel mount set up to the arc end, and the arc end rotates through the pivot with engaging lug 5 to be connected, and swivel mount 6 rotates on engaging lug 5 and realizes blocking and the UNICOM of 1 interior passageway 2 of valve body and end 3 and play water end 4 of intaking, realizes preventing against the current effect.

As an embodiment of the utility model, valve clack 12 is close to and intakes 3 sides of end and all inlays and install annular rubber packing ring 13, and annular rubber packing ring 13's diameter is greater than the end 3 diameters of intaking, and during operation, rubber packing ring 13 and the end 3 inner walls laminating of intaking realize sealing connection.

As an embodiment of the utility model, swivel mount 6 bottom and top all run through and install second bolt 14, and second bolt 14 and connecting plate 11 threaded connection are convenient for realize the dismantlement installation of swivel mount 6 and connecting plate 11.

As an embodiment of the utility model, 1 inside and the inner top that is located water outlet end 4 of valve body is provided with inclined plane 21, and dashpot 22 has been seted up at inclined plane 21 middle part, and dashpot 22 and the 20 looks adaptations of rubber block, and the during operation, rubber block 20 on the supporting seat 19 at first with the contact of dashpot 22 inner wall, plays preliminary buffering through rubber block 20.

The working principle is as follows: the valve body 1 is firstly provided with an inner valve cover 7, the outer side of the inner valve cover 7 is filled with filler 10, then the inner valve cover 7 is connected with a fixed valve cover 8 through a first bolt 9, when water enters from the water inlet end 3 of the valve body 1, which acts on the connecting plate 11 to drive the rotary seat 6 to rotate on the connecting lug 5, at the moment, the water inlet end 3 is communicated with the channel 2, when the rotary seat 6 rotates anticlockwise, the rubber block 20 on the supporting seat 19 firstly contacts with the inner wall of the buffer groove 22, the preliminary buffer is achieved through the rubber block 20, meanwhile, the supporting seat 19 drives the sleeve seat 18 to move along the supporting rod 16 in the built-in groove 15, the spring 17 is compressed, secondary buffering is achieved through elastic deformation of the spring 17, when water outlet end 4 stops supplying water, spring 17 in built-in groove 15 recovers the original state, accelerates swivel mount 6 clockwise rotation through elastic deformation, can realize fast that valve clack 12 and rubber packing ring 13 laminate with the inner of intaking end 3.

When the water inlet end 3 of the valve body 1 enters water, the water inlet end acts on the connecting plate 11 to further drive the rotary seat 6 to rotate on the connecting lug 5, the water inlet end 3 is communicated with the channel 2, when the rotary seat 6 rotates anticlockwise, the rubber block 20 on the supporting seat 19 firstly contacts with the inner wall of the buffer groove 22, primary buffering is achieved through the rubber block 20, meanwhile, the supporting seat 19 drives the sleeve seat 18 to move along the supporting rod 16 in the built-in groove 15, the spring 17 is compressed, secondary buffering is achieved through elastic deformation of the spring 17, and direct rigid contact between the rotary seat 6 and the inclined plane 21 is avoided;

when 4 water break of play water end, the spring 17 reconversion of this moment built-in groove 15 is accelerated the clockwise rotation of swivel mount 6 through elastic deformation, can realize fast that valve clack 12 and rubber packing ring 13 are laminated with the inner of intaking end 3, realizes the separation and prevents the effect against the current, has improved check valve and has prevented the efficiency against the current.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The efficient slow-closing check valve is characterized by comprising a valve body (1), a channel (2) and a fixed valve cover (8), wherein an inner valve cover (7) is installed on the inner side of the top of the valve body (1), a filler (10) is filled in the outer side of the inner valve cover (7) and located inside the valve body (1), and the fixed valve cover (8) is installed on the top of the inner valve cover (7) and located inside the valve body (1);

the water-saving valve is characterized in that a channel (2) is arranged inside the valve body (1), two ends of the channel (2) are respectively arranged to be a water inlet end (3) and a water outlet end (4), a connecting lug (5) is installed on the inner wall of the channel (2), the inner side of one end of the connecting lug (5) is rotatably installed on the top end of a swivel base (6), the swivel base (6) is close to the water inlet end (3) and is provided with a connecting plate (11), the connecting plate (11) is close to the top of the water inlet end (3) and is provided with a valve clack (12) on the outer side of the water inlet end (3), a built-in groove (15) is formed inside the swivel base (6) close to the water outlet end (4), a supporting rod (16) is horizontally installed inside the built-in groove (15), a spring (17) is sleeved on the outer side of the supporting, supporting seat (19) are installed to cover seat (18) one end position in swivel mount (6) outside, rubber block (20) are installed in supporting seat (19) outside.

2. A high efficiency slow shut check valve as claimed in claim 1, wherein the fixed valve cover (8) is internally provided with a first bolt (9), and the bottom end of the first bolt (9) is in threaded connection with the inner valve cover (7).

3. A high efficiency slow shut check valve as defined in claim 1, wherein the top end of said rotary seat (6) is provided with an arc end, and the arc end is rotatably connected with the connecting lug (5) through a rotary shaft.

4. The efficient slow-closing check valve as claimed in claim 1, wherein the valve clack (12) is embedded with an annular rubber gasket (13) at the side close to the water inlet end (3), and the diameter of the annular rubber gasket (13) is larger than that of the water inlet end (3).

5. A high efficiency slow shut check valve as claimed in claim 1, wherein the second bolt (14) is installed through the bottom and top ends of the rotary seat (6), and the second bolt (14) is connected with the connecting plate (11) by screw thread.

6. The efficient slow-closing check valve as claimed in claim 1, wherein an inclined surface (21) is arranged inside the valve body (1) and above the inner end of the water outlet end (4), a buffer groove (22) is formed in the middle of the inclined surface (21), and the buffer groove (22) is matched with the rubber block (20).