CN211315160U

CN211315160U - Buffering formula rubber lamella check valve

Info

Publication number: CN211315160U
Application number: CN201922287736.2U
Authority: CN
Inventors: 杨学亮
Original assignee: Tianjin Tangye Valve Co ltd
Current assignee: Tianjin Tangye Valve Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-21
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a buffering formula rubber lamella check valve, which comprises a valve body, the fixed connecting plate that is provided with in middle part position upper end of valve body, the last fixed surface of connecting plate is connected with the connection lid, the lower surface middle part rigidity of connecting the lid is provided with a butt joint section of thick bamboo, the inboard of butt joint section of thick bamboo is provided with the compression post, and the external diameter setting of compression post is the same with a butt joint section of thick bamboo internal diameter, the lower extreme fixed connection of compression post has the valve clack, the fixed disk seat that is provided with in inside central point of valve body puts, and the avris lower surface of valve clack and the laminating of disk seat upper surface mutually, the fixed oily splenium that is provided with in inside of disk seat, the inside of oily splenium is provided with the fore-. The utility model discloses in, the inside fore-set that is equipped with, fore-set bottom and oil tank connection utensil oil pressure give the valve clack reaction force when the backward flow, make the valve clack slowly carry out the closure operation, avoid the influence to the pump motor, also avoid the damage of water hammer phenomenon to the valve clack.

Description

Buffering formula rubber lamella check valve

Technical Field

The utility model relates to a check valve field especially relates to a buffering formula rubber lamella check valve.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type.

General check valve structure is comparatively single, and inside valve clack structural mobility is great, in case rivers backward flow operation will make the valve clack carry out the closed operation at once, and this kind of mode of cutting off suddenly uses for a long time and can lead to brake motor impaired, and the production of water hammer phenomenon all can have certain damage to valve clack structure and body, has reduced valve body life, is unfavorable for normal use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a buffering rubber flap check valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a buffering formula rubber lamella check valve, includes the valve body, the fixed connecting plate that is provided with in middle part position upper end of valve body, the last fixed surface of connecting plate is connected with the connection lid, the lower surface middle part rigidity of connecting the lid is provided with a butt joint section of thick bamboo, the inboard of butt joint section of thick bamboo is provided with the compression post, and the external diameter setting of compression post is the same with a butt joint section of thick bamboo internal diameter, the lower extreme fixed connection of compression post has the valve clack, the inside central point rigidity of valve body is provided with the disk seat, and the avris lower surface of valve clack and the laminating of disk seat upper surface mutually, the inside fixed oil splenium that is provided with of disk seat, the inside of oil splenium is provided with the fore-set up to lining up mutually of upper surface that just the fore-set up the.

As a further description of the above technical solution:

the fixed second spring that is provided with of inside upper surface of oil tank, the lower extreme fixedly connected with clamp plate of second spring, and the surface of clamp plate laminates with the inner wall of oil tank mutually, the fixed oil passageway that is provided with of valve body, and oil passageway link up to the inside bottom side of oil tank.

As a further description of the above technical solution:

the oil pressure part is fixedly arranged in the valve seat, one side of the oil pressure part is fixedly communicated with the oil channel, six ejection columns are arranged on the upper surface of the valve seat at equal intervals, and the bottom of each ejection column is arranged above the inner portion of the oil pressure part.

As a further description of the above technical solution:

the fixed screw thread post that is provided with of upper surface circumference avris of connecting plate, the screw thread post is provided with a plurality ofly along circumference equidistance at the upper surface of connecting plate, and connects the upper surface of lid through screw thread post fixed connection at the connecting plate.

As a further description of the above technical solution:

the fixed first spring that is provided with in butt joint section of thick bamboo, the upper end fixed connection of first spring is in the lower surface of connecting the lid, the lower extreme fixed connection of first spring is in the upper end of compression post.

As a further description of the above technical solution:

the upside of disk seat is fixed to be provided with slottedly, the internal diameter size in groove sets up the external diameter size the same with the valve clack, the surface of disk seat is provided with six apical pores along circumference equidistance, the apical pore corresponds the setting with the fore-set.

As a further description of the above technical solution:

the oil pressure part and the oil tank are connected in a through mode through an oil channel, and the oil tank, the oil channel and the oil pressure part are arranged in an absolute sealing mode.

The utility model discloses following beneficial effect has:

1. the utility model discloses the inside fixing device of structure has the fore-set, and fore-set bottom space has certain oil pressure through being connected with the oil tank, gives a reaction force of valve clack when the check valve backward flow, can make the valve clack slowly carry out closed operation, can avoid influencing the pump motor, also can avoid the damage of water hammer phenomenon to the valve clack.

2. The utility model discloses structure upper portion butt joint position fixedly connected with screw thread post can fix the butt joint operation through simple and easy nut, and inside valve clack structure sets up in the lid lower part, can realize simple and easy dismantlement maintenance replacement operation.

Drawings

FIG. 1 is a front cross-sectional view of a cushion rubber flap check valve;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

fig. 4 is a schematic view of a valve seat structure of a cushion type rubber flap check valve.

Illustration of the drawings:

1. a valve body; 2. a connecting plate; 3. a connecting cover; 4. a docking barrel; 5. compressing the column; 6. a valve flap; 7. a first spring; 8. a valve seat; 9. a threaded post; 10. an oil tank; 11. a second spring; 12. pressing a plate; 13. an oil passage; 14. an oil pressing portion; 15. a top pillar; 16. and (4) a top hole.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a buffer type rubber flap check valve comprises a valve body 1, a connecting plate 2 is fixedly arranged at the upper end of the middle position of the valve body 1 and provides a connecting position of an upper connecting cover 3, the upper surface of the connecting plate 2 is fixedly connected with the connecting cover 3 to realize upper sealing operation, a butt joint cylinder 4 is fixedly arranged at the middle position of the lower surface of the connecting cover 3, a compression column 5 is arranged at the inner side of the butt joint cylinder 4, the outer diameter of the compression column 5 is the same as the inner diameter of the butt joint cylinder 4 to realize relative telescopic operation, a valve flap 6 is fixedly connected at the lower end of the compression column 5 to provide internal plugging operation, a valve seat 8 is fixedly arranged at the internal center position of the valve body 1 and provides a plugging position, the lateral lower surface of the valve flap 6 is attached to the upper surface of the valve seat 8, an oil pressing part 14 is fixedly arranged inside the valve seat 8 to increase internal oil pressure, a jacking column 15 is arranged inside the oil pressing part, the effect of hindering the valve clack 6 to close is realized, and the fixed oil tank 10 that is provided with in surface one side of valve body 1 provides the oil pressure, and the oil tank 10 sets up to link up with the inside oil pressure portion 14.

The upper surface of the inside of the oil tank 10 is fixedly provided with a second spring 11, the lower end of the second spring 11 is fixedly connected with a pressing plate 12, the outer surface of the pressing plate 12 is attached to the inner wall of the oil tank 10 to ensure the oil pressure effect inside the oil tank 10, the valve body of the valve body 1 is fixedly provided with oil channels 13, the oil channels 13 are communicated to the bottom side inside the oil tank 10 to realize oil pressure transmission, the oil pressing part 14 is fixedly arranged inside the valve seat 8, one side of the oil pressing part 14 is fixedly communicated with the oil channels 13 to realize oil pressure supply, the jack posts 15 are equidistantly arranged on the upper surface of the valve seat 8 to ensure the jacking force of the jack posts 15, the bottom of the jack posts 15 is arranged above the inside of the oil pressing part 14, the circumferential edge side of the upper surface of the connecting plate 2 is fixedly provided with threaded posts 9, the threaded posts 9 are equidistantly arranged on the upper surface of the connecting plate 2 along the circumference, and the, realize connecting lid 3 and connecting plate 2's fixed connection operation, the inside of a butt joint section of thick bamboo 4 is fixed and is provided with first spring 7, the upper end fixed connection of first spring 7 is at the lower surface of connecting lid 3, the lower extreme fixed connection of first spring 7 is in the upper end of compression post 5, increase the resilience force of compression post 5, the upside of disk seat 8 is fixed to be provided with slottedly, the internal diameter size in groove sets up the same with the external diameter size of valve clack 6, guarantee the closure effect, disk seat 8's surface is provided with six apical pores 16 along circumference equidistance, apical pore 16 corresponds the setting with apical pore 15, through oil duct 13 through connection between oil splenium 14 and the oil tank 10, and oil tank 10, set up to absolute seal between oil duct 13 and the oil pressure portion 14, guarantee that the oil.

The working principle is as follows: when sending water work, under the effect of water pressure, make valve clack 6 jack-up that makes progress, thereby realize the water circulation, when stopping sending water work, valve clack 6 moves down under the effect of first spring 7 and backward flow water pressure, the upper surface of disk seat 8 is provided with a plurality of fore-set 15, the lower part of fore-set 15 is provided with oil splenium 14, under the internal pressure effect of oil tank 10, fore-set 15 has certain pressure, can reduce closing speed when valve clack 6 contacts fore-set 15, can not directly cut off this moment, can be because the effect closure of fore-set 15 is slow under first spring 7 and backward flow water pressure effect, finally can be closed completely, direct cut off can be avoided to braking device's influence to this kind of mode, the water hammer phenomenon also can not appear.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a buffering formula rubber lamella check valve, includes valve body (1), its characterized in that: the valve is characterized in that a connecting plate (2) is fixedly arranged at the upper end of the middle position of the valve body (1), a connecting cover (3) is fixedly connected to the upper surface of the connecting plate (2), a butt joint cylinder (4) is fixedly arranged at the middle position of the lower surface of the connecting cover (3), a compression column (5) is arranged on the inner side of the butt joint cylinder (4), the outer diameter of the compression column (5) is the same as the inner diameter of the butt joint cylinder (4), a valve clack (6) is fixedly connected to the lower end of the compression column (5), a valve seat (8) is fixedly arranged at the inner center position of the valve body (1), the lower surface of the lateral side of the valve clack (6) is attached to the upper surface of the valve seat (8), an oil pressing part (14) is fixedly arranged inside the valve seat (8), a top column (15) is arranged inside the oil pressing part (14), and the top column (15) penetrates through the, an oil tank (10) is fixedly arranged on one side of the outer surface of the valve body (1), and the oil tank (10) is communicated with the inside of the oil pressure part (14).

2. The check valve of claim 1, wherein: the inside upper surface of oil tank (10) is fixed and is provided with second spring (11), the lower extreme fixedly connected with clamp plate (12) of second spring (11), and the surface of clamp plate (12) and the inner wall of oil tank (10) laminate mutually, the fixed oil passageway (13) that is provided with of valve body (1), and oil passageway (13) link up to the inside bottom side of oil tank (10).

3. The check valve of claim 1, wherein: the oil pressure part (14) is fixedly arranged in the valve seat (8), one side of the oil pressure part (14) is fixedly communicated with the oil channel (13), six ejection columns (15) are arranged on the upper surface of the valve seat (8) at equal intervals, and the bottom of each ejection column (15) is arranged above the inner part of the oil pressure part (14).

4. The check valve of claim 1, wherein: the fixed screw thread post (9) that is provided with of upper surface circumference avris of connecting plate (2), screw thread post (9) are provided with a plurality ofly along circumference equidistance at the upper surface of connecting plate (2), and connect lid (3) through the upper surface of screw thread post (9) fixed connection at connecting plate (2).

5. The check valve of claim 1, wherein: the inner part of the butt joint barrel (4) is fixedly provided with a first spring (7), the upper end of the first spring (7) is fixedly connected to the lower surface of the connecting cover (3), and the lower end of the first spring (7) is fixedly connected to the upper end of the compression column (5).

6. The check valve of claim 1, wherein: the upside of disk seat (8) is fixed to be provided with slottedly, the internal diameter size in groove sets up the external diameter size the same with valve clack (6), the surface of disk seat (8) is provided with six apical pores (16) along circumference equidistance, apical pore (16) correspond the setting with fore-set (15).

7. The check valve of claim 1, wherein: the oil pressure part (14) is communicated with the oil tank (10) through an oil channel (13), and absolute sealing is arranged among the oil tank (10), the oil channel (13) and the oil pressure part (14).