CN112963551A

CN112963551A - Connecting rod piston type valve clack

Info

Publication number: CN112963551A
Application number: CN202110141860.7A
Authority: CN
Inventors: 金志远; 王大秋; 陈阿龙; 金汉聂; 钟庚福; 叶挺
Original assignee: Oulam Valve Technology Co ltd
Current assignee: Oulam Valve Technology Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-06-15
Anticipated expiration: 2041-02-02
Also published as: CN112963551B

Abstract

The invention discloses a connecting rod piston type valve clack which comprises a valve body, a valve clack, a valve rod and a valve seat, wherein strip-shaped grooves are symmetrically formed in the inner wall of the valve body and positioned on two sides of the bottom of the valve clack, an elastic part is fixed inside each strip-shaped groove, a clamping plate is fixed at one end of each elastic part and extends to the inner cavity of the valve body, pushing plates are symmetrically and movably connected to two sides of the valve clack on the inner wall of the valve body, the tail ends of the pushing plates are movably connected with the clamping plates, mounting holes are formed in the top surfaces of the clamping plates positioned inside the strip-shaped grooves, first springs are fixed inside the mounting holes, clamping blocks are fixed at the top ends of the first springs, clamping grooves matched with the clamping blocks; through the catch plate, the splint that set up, avoid the direct trompil in valve clack surface or mill the keyway to realize preventing changeing and destroying valve rod intensity itself, guarantee to open and close in-process valve clack and can not remove, can not destroy sealed face when guaranteeing that the valve clack is closed, improved the sealing performance of valve body greatly.

Description

Connecting rod piston type valve clack

Technical Field

The invention relates to the technical field of valve clacks, in particular to a connecting rod piston type valve clack.

Background

The stop valve is a common valve, and generally comprises a valve body, a valve core, a valve rod and a valve cover, wherein the valve body is provided with a valve seat, and the valve core is matched with the valve seat to realize sealing; a packing ring is usually arranged between the valve rod and the valve body to improve the sealing performance, and the matching part of the valve rod and the valve clack is usually connected in a T shape.

However, various problems still exist in the use process of various connecting rod piston type valve clacks in the market, and the problems that the strength of a valve rod is damaged due to the fact that the existing valve clack is directly provided with holes or milled key grooves in the surface of the valve clack in an anti-rotating mode, the valve clack cannot move in the opening and closing process, a sealing surface cannot be damaged when the valve clack is closed, and the sealing performance of a valve body is reduced are not solved.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the connecting rod piston type valve clack, and through the arranged pushing plate and the clamping plate, the phenomenon that the strength of a valve rod is damaged due to the fact that the surface of the valve clack is provided with holes or key grooves are milled to prevent rotation is effectively avoided, the valve clack is favorable for ensuring that the valve clack cannot move in the opening and closing process, the sealing surface cannot be damaged when the valve clack is closed, and the sealing performance of a valve body is greatly improved.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a connecting rod piston formula valve clack, includes valve body, valve clack, valve rod, disk seat, the bar groove has been seted up to the inner wall of valve body and the bottom bilateral symmetry that is located the valve clack, the inside in bar groove is fixed with the elastic component, the one end of elastic component is fixed with splint, and splint extend to the inner chamber of valve body, the inner wall of valve body and the bilateral symmetry swing joint who is located the valve clack have the slurcam, the end and the splint swing joint of slurcam, splint are located the top surface of bar inslot portion and have seted up the mounting hole, the inside of mounting hole is fixed with first spring, the top of first spring is fixed with the fixture block, the surperficial symmetry of valve body seted up with fixture block assorted draw-in groove, splint are.

According to a preferred technical scheme, fixed blocks are symmetrically fixed on the top surface of the valve clack, a positioning frame is movably sleeved on the surface of the valve rod, a groove body is symmetrically formed in the bottom surface of the positioning frame, a second spring is fixed inside the groove body, an extrusion block is fixed at one end of the second spring, a connecting plate is fixed on the bottom surface of the extrusion block, a positioning block is fixed on the surface of one end of the connecting plate, and a positioning groove matched with the positioning block is formed in the surface of one side, close to the positioning block, of the fixed block.

As a preferred technical scheme of the invention, the rubber pad is arranged on the surface of the arc-shaped groove, and the size of the rubber pad is matched with that of the arc-shaped groove.

In a preferred embodiment of the present invention, the valve seat has a trapezoidal front view shape, and the top surface of the valve seat is provided with a guard.

As a preferable technical scheme of the invention, the top end of the valve rod is provided with a driving mechanism, and the driving mechanism is fixedly connected with the valve body.

As a preferable technical scheme of the invention, the surface of one end of the extrusion block, which is positioned outside the groove body, is provided with raised grains, and the shapes of the raised grains are O-shaped.

As a preferred technical scheme of the invention, the surface of the positioning block is sleeved with a rubber sleeve, and the rubber sleeve is tightly attached to the positioning groove.

As a preferred technical scheme of the invention, the surface of the valve body is provided with an explanatory label, and the model label is fixedly connected with the valve body through viscose glue.

As a preferred technical scheme of the invention, the two end surfaces of the valve body are provided with flanges, and the flanges are rotatably connected with bolts.

As a preferred technical scheme of the invention, a sealing sleeve is movably sleeved on the surface of the valve body and is positioned on one side of the clamping groove.

Compared with the prior art, the invention can achieve the following beneficial effects:

1. through the arranged pushing plate and the clamping plate, the phenomenon that the valve clack is directly provided with holes or milled key grooves on the surface to prevent rotation so as to destroy the strength of the valve rod is effectively avoided, the valve clack is prevented from moving in the opening and closing process, the sealing surface is prevented from being damaged when the valve clack is closed, and the sealing performance of the valve body is greatly improved;

2. through locating rack, the fixed block that sets up, effectively avoided the valve clack when installing with the valve rod, not set up the auxiliary member and fix a position, be favorable to carrying out preliminary being connected with valve clack and valve rod to subsequent installation has improved staff's installation effectiveness greatly.

Drawings

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

FIG. 2 is an enlarged view of A of FIG. 1 according to the present invention;

FIG. 3 is a partial front cross-sectional view of the valve flap and valve stem of FIG. 1 according to the present invention;

wherein: 1. a valve body; 2. a valve flap; 3. a valve stem; 4. a valve seat; 5. a push plate; 6. a splint; 7. a rubber pad; 8. a positioning frame; 9. a fixed block; 10. a strip-shaped groove; 11. an elastic member; 12. mounting holes; 13. a first spring; 14. a clamping block; 15. a card slot; 16. a trough body; 17. a second spring; 18. extruding the block; 19. a connecting plate; 20. positioning blocks; 21. and (6) positioning a groove.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1 and 2, a connecting rod piston type valve clack comprises a valve body 1, a valve clack 2, a valve rod 3 and a valve seat 4, wherein strip-shaped grooves 10 are symmetrically formed in the inner wall of the valve body 1 and positioned on two sides of the bottom of the valve clack 2, elastic pieces 11 are fixed inside the strip-shaped grooves 10, a clamping plate 6 is fixed at one end of each elastic piece 11, the clamping plate 6 extends to an inner cavity of the valve body 1, pushing plates 5 are symmetrically and movably connected to two sides of the valve clack 2 and positioned on the inner wall of the valve body 1, the tail ends of the pushing plates 5 are movably connected with the clamping plates 6, a mounting hole 12 is formed in the top surface of each clamping plate 6 positioned inside the strip-shaped grooves 10, a first spring 13 is fixed inside the mounting hole 12, a clamping block 14 is fixed at the top end of each first spring 13, clamping grooves 15;

when the valve body 1 needs to be closed, firstly, the valve rod 3 drives the valve clack 2 to move downwards, the valve clack 2 firstly contacts the pushing plate 5, due to the effect of the bottom inclined plane of the valve clack 2, the pushing plate 5 moves towards the direction close to the inner wall of the valve body 1, the clamping plate 6 movably connected with the tail end of the pushing plate 5 moves towards one side close to the strip-shaped groove 10, and then two groups of clamping plates 6 are opened, so that the valve clack 2 moves towards one side close to the valve seat 4, meanwhile, the clamping plate 6 moves to a certain distance in the strip-shaped groove 10, so that the clamping block 14 is ejected out from the inside of the clamping groove 15 by virtue of the elastic force of the first spring 13, thereby limiting the position of the clamping plate 6, the arc-shaped groove arranged on one side surface of the clamping plate 6 can clamp two sides of the valve clack 2 by virtue of the elastic force of the elastic piece 11, the stability, and then improve the sealing performance of valve body 1, and valve rod 3 on the valve body 1 is the poppet valve rod type, can effectual reduction valve rod 3 and the frictional force of packing, increase sealing performance, catch plate 5 through setting up, splint 6, effectively avoided valve clack 2 to realize preventing changeing and destroyed the intensity of valve rod 3 on its surface trompil or milling the keyway, be favorable to guaranteeing to open and close that in-process valve clack 2 can not remove, can not destroy sealed face when guaranteeing that valve clack 2 closes, the sealing performance of valve body 1 has been improved greatly.

In another embodiment, the embodiment discloses a positioning manner of the valve rod 3 and the valve flap 2, as shown in fig. 1 and 3, fixing blocks 9 are symmetrically fixed on the top surface of the valve flap 2, a positioning frame 8 is movably sleeved on the surface of the valve rod 3, groove bodies 16 are symmetrically arranged on the bottom surface of the positioning frame 8, a second spring 17 is fixed inside the groove body 16, a squeezing block 18 is fixed at one end of the second spring 17, a connecting plate 19 is fixed on the bottom surface of the squeezing block 18, a positioning block 20 is fixed on the surface of one end of the connecting plate 19, and a positioning groove 21 matched with the positioning block 20 is arranged on the surface of one side, close to the positioning block 20;

in use, when the valve stem 3 and the valve flap 2 are to be mounted, positioning is required, first, the locating frame 8 is movably sleeved on the valve rod 3, the extrusion block 18 is pressed inwards, the connecting plate 19 moves towards one side, the second spring 17 is compressed while the extrusion block 18 is pressed, then the positioning frame 8 is rotated to enable the positioning block 20 to be close to one side of the fixed block 9, the extrusion block 18 is loosened, so that the positioning block 20 on the connecting plate 19 is indirectly clamped into the positioning slot 21 by the elastic force of the second spring 17, thereby fixing the connection between the positioning frame 8 and the fixed block 9, facilitating the subsequent installation of the valve clack 2 and the valve rod 3, by the positioning frame 8 and the fixing block 9, the valve clack 2 is effectively prevented from being assembled with the valve rod 3, the auxiliary part is not arranged for positioning, so that the valve clack 2 and the valve rod 3 are favorably connected preliminarily, and the installation efficiency of workers is greatly improved in subsequent installation.

In another embodiment, the embodiment discloses the rubber pad 7 disposed on one side surface of the arc-shaped groove, as shown in fig. 1, the rubber pad 7 is disposed on the surface of the arc-shaped groove, and the size of the rubber pad 7 is matched with the size of the arc-shaped groove;

through setting up rubber pad 7 at arc wall one side surface, be convenient for increase arc wall and valve clack 2 between frictional force.

In another embodiment, the present embodiment discloses a protection member provided with a front view shape of the valve seat 4 and a top surface of the valve seat 4, as shown in fig. 1, the front view shape of the valve seat 4 is a trapezoid, and the top surface of the valve seat 4 is provided with the protection member;

the valve seat 4 is provided with a trapezoidal front view shape and a guard member provided on the top surface of the valve seat 4, thereby facilitating the bearing capacity of the valve seat 4.

In another embodiment, the embodiment discloses a driving mechanism disposed at the top end of the valve rod 3 and a connection manner of the driving mechanism and the valve body 1, as shown in fig. 1, the driving mechanism is disposed at the top end of the valve rod 3 and is fixedly connected with the valve body 1;

the driving mechanism arranged at the top end of the valve rod 3 and the connection mode of the driving mechanism and the valve body 1 are fixedly connected, so that the valve rod 3 is driven to work conveniently.

In another embodiment, the embodiment discloses an "O" shaped raised pattern disposed on one end surface of the extrusion block 18 outside the tank body 16, as shown in fig. 3, one end surface of the extrusion block 18 outside the tank body 16 is provided with a raised pattern, and the raised pattern is in an "O" shape;

the O-shaped raised lines arranged on the surface of one end of the extrusion block 18 positioned outside the groove body 16 are convenient for playing a role of skid resistance when the extrusion block 18 is pressed.

In another embodiment, the embodiment discloses a rubber sleeve sleeved on the surface of the positioning block 20, and the rubber sleeve is tightly attached to the positioning slot 21, as shown in fig. 3, the surface of the positioning block 20 is sleeved with the rubber sleeve, and the rubber sleeve is tightly attached to the positioning slot 21;

the positioning block 20 is connected with the fixing block 9 more tightly through the rubber sleeve sleeved on the surface of the positioning block 20 and tightly attached to the positioning groove 21.

In another embodiment, the present embodiment discloses an instruction label fixed on the surface of the valve body 1 by an adhesive, as shown in fig. 1, the surface of the valve body 1 is provided with the instruction label, and the model label is fixedly connected with the valve body 1 by the adhesive;

the explaining label fixed on the surface of the valve body 1 through the viscose is convenient for explaining the valve body 1.

In another embodiment, the embodiment discloses bolts rotatably connected to flanges on two end surfaces of the valve body 1, as shown in fig. 1, flanges are provided on two end surfaces of the valve body 1, and the flanges are rotatably connected to the bolts;

the flange plates on the surfaces of the two ends of the valve body 1 are rotatably connected through bolts, so that the valve body 1 can be conveniently connected with an external object through the flange plates and the bolts.

In another embodiment, the embodiment discloses a sealing sleeve movably sleeved on the surface of the valve body 1, and the sealing sleeve is located on one side of the clamping groove 15, as shown in fig. 1, the sealing sleeve is movably sleeved on the surface of the valve body 1, and the sealing sleeve is located on one side of the clamping groove 15;

the sealing sleeve is movably sleeved on the surface of the valve body 1 and located on one side of the clamping groove 15, when the clamping block 14 is ejected out of the clamping groove 15, the sealing sleeve is used for sealing, the clamping block 14 can be abutted, and the clamping block 14 is prevented from being touched and pressed.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a connecting rod piston formula valve clack, includes valve body (1), valve clack (2), valve rod (3), disk seat (4), its characterized in that: strip-shaped grooves (10) are symmetrically arranged on the inner wall of the valve body (1) and positioned at two sides of the bottom of the valve clack (2), an elastic piece (11) is fixed in the strip-shaped groove (10), a clamping plate (6) is fixed at one end of the elastic piece (11), the clamping plate (6) extends to the inner cavity of the valve body (1), the inner wall of the valve body (1) and two sides of the valve clack (2) are symmetrically and movably connected with pushing plates (5), the tail end of the pushing plate (5) is movably connected with the clamping plate (6), the top surface of the clamping plate (6) positioned in the strip-shaped groove (10) is provided with a mounting hole (12), a first spring (13) is fixed inside the mounting hole (12), a clamping block (14) is fixed at the top end of the first spring (13), the surface of the valve body (1) is symmetrically provided with clamping grooves (15) matched with the clamping blocks (14), an arc-shaped groove is formed in the surface of one end, close to the valve clack (2), of the clamping plate (6).

2. A connecting rod piston valve flap according to claim 1, characterized in that: the top surface symmetry of valve clack (2) is fixed with fixed block (9), the surface activity cover of valve rod (3) is equipped with locating rack (8), cell body (16) have been seted up to the bottom surface symmetry of locating rack (8), the inside of cell body (16) is fixed with second spring (17), the one end of second spring (17) is fixed with extrusion piece (18), the bottom surface of extrusion piece (18) is fixed with connecting plate (19), the one end fixed surface of connecting plate (19) has locating piece (20), fixed block (9) are close to a side surface of locating piece (20) and seted up with locating piece (20) assorted constant head tank (21).

3. A connecting rod piston valve flap according to claim 1, characterized in that: the rubber pad (7) is arranged on the surface of the arc-shaped groove, and the size of the rubber pad (7) is matched with that of the arc-shaped groove.

4. A connecting rod piston valve flap according to claim 1, characterized in that: the front view shape of the valve seat (4) is trapezoid, and a protection piece is arranged on the top surface of the valve seat (4).

5. A connecting rod piston valve flap according to claim 1, characterized in that: the top end of the valve rod (3) is provided with a driving mechanism, and the driving mechanism is fixedly connected with the valve body (1).

6. A connecting rod piston valve flap according to claim 2, characterized in that: the surface of one end, positioned outside the groove body (16), of the extrusion block (18) is provided with raised grains, and the shapes of the raised grains are O-shaped.

7. A connecting rod piston valve flap according to claim 2, characterized in that: the surface cover of locating piece (20) is equipped with the rubber sleeve, and the rubber sleeve closely laminates with constant head tank (21).

8. A connecting rod piston valve flap according to claim 1, characterized in that: the surface of the valve body (1) is provided with an explanatory label, and the model label is fixedly connected with the valve body (1) through viscose.

9. A connecting rod piston valve flap according to claim 1, characterized in that: the two end surfaces of the valve body (1) are provided with flange plates, and the flange plates are rotatably connected with bolts.

10. A connecting rod piston valve flap according to claim 1, characterized in that: the surface of the valve body (1) is movably sleeved with a sealing sleeve, and the sealing sleeve is positioned on one side of the clamping groove (15).