CN210566628U

CN210566628U - Valve rod sealing ring with good sealing effect

Info

Publication number: CN210566628U
Application number: CN201921292767.0U
Authority: CN
Inventors: 唐慧
Original assignee: Jiangmen Geleiyate Fluid Sealing Technology Co ltd
Current assignee: Jiangmen Geleiyate Fluid Sealing Technology Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-19
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a sealed effectual valve rod seal circle, including the annular base member, the annular base member is provided with the recess on the section of meeting to pressure, the equal fixedly connected with trapezoidal piece in the left and right sides of recess inner wall, the bottom of trapezoidal piece and the bottom sliding connection of recess inner wall, the position that the annular base member corresponds trapezoidal piece all is provided with the seal lip, the bottom of recess inner wall just is located the coupling spring that the rigidity of position fixedly connected with symmetry between two trapezoidal pieces set up. The utility model discloses a mutually supporting between annular base member, recess, trapezoidal piece, seal lip, coupling spring, extrusion piece, pole setting, atress pole and the atress board has realized a sealed effectual valve rod seal, and in the in-service use in-process, when the meeting pressure section of this device received the effort, can make the seal lip propped open more, consequently makes the contact between its and the sealing element inner wall inseparabler to reach better sealed effect.

Description

Valve rod sealing ring with good sealing effect

Technical Field

The utility model relates to a sealed technical field of axle type specifically is a sealed effectual valve rod seal circle.

Background

The valve has wide application in various industries, and the working environment of the valve must be considered during design, however, the working environment of the valve in different industries is different, and the working parameters including medium, pressure and temperature are different, and the coverage range of the parameters is very wide, so the working condition of the valve is diversified and complicated, and the valve must be considered during design to be quickly and flexibly closed or opened when an emergency happens.

The valve is as common equipment in life, and its application is also very extensive, and the quality of valve then depends on its sealed effect and life, but common valve rod sealing washer sealed effect is unsatisfactory, because common valve rod sealing washer generally cooperates the use through Y shape rubber circle cooperation O shape sealing washer, in the use, leads to the blowby because of warping easily to can't reach fine sealed effect.

Disclosure of Invention

An object of the utility model is to provide a sealed effectual valve rod seal circle possesses sealed effectual advantage, has solved the unsatisfactory problem of common valve rod seal circle sealing effect.

In order to achieve the above object, the utility model provides a following technical scheme: a valve rod sealing ring with good sealing effect comprises an annular base body, wherein a groove is formed in the section, facing to pressure, of the annular base body, trapezoidal blocks are fixedly connected to the left side and the right side of the inner wall of the groove, the bottoms of the trapezoidal blocks are connected with the bottom of the inner wall of the groove in a sliding mode, sealing lips are arranged at the positions, corresponding to the trapezoidal blocks, of the annular base body, symmetrically arranged connecting springs are fixedly connected to the bottom of the inner wall of the groove and the position, located between the two trapezoidal blocks, of the bottom of the inner wall of the groove, pressing blocks matched with the trapezoidal blocks are arranged at the tops of the two connecting springs, one sides, close to inclined planes of the trapezoidal blocks, of the pressing blocks are in contact with the inclined planes of the trapezoidal blocks, a vertical rod is fixedly connected to the middle point of the bottom of the inner wall of the groove, the tops, the top of each stress rod penetrates through the groove and extends to the outside of the groove, and the tops of the two stress rods positioned outside the groove are fixedly connected through the stress plate.

Preferably, the annular matrix is a polytetrafluoroethylene-based composite matrix.

Preferably, one side of the extrusion block, which is close to the inclined surface of the trapezoidal block, is provided with an inclined surface matched with the extrusion block, and one side of the extrusion block, which is close to the inclined surface of the trapezoidal block, is in sliding connection with the extrusion block.

Preferably, the top of the vertical rod is fixedly connected with a stop block.

Preferably, the top of the annular base body is fixedly connected with a sealing gasket corresponding to the stress rod, and the sealing gasket is connected with the stress rod in a sliding manner.

Preferably, the stress plate is made of stainless steel or stainless steel alloy material.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a mutually supporting between annular base member, recess, trapezoidal piece, seal lip, coupling spring, extrusion piece, pole setting, atress pole and the atress board has realized a sealed effectual valve rod seal, and in the in-service use in-process, when the meeting pressure section of this device received the effort, can make the seal lip propped open more, consequently makes the contact between its and the sealing element inner wall inseparabler to reach better sealed effect.

2. The utility model discloses a set up the annular base member that polytetrafluoroethylene combined material constitutes, because polytetrafluoroethylene combined material has outstanding thermal stability, corrosion resistance and tribology performance, consequently make its more durable, play limiting displacement to the extrusion piece through setting up the dog, avoid the extrusion piece to break away from the pole setting when sliding in the pole setting, play sealed effect through setting up sealed the pad, prevent that other impurity from getting into the inside influence of recess this device normal use, through setting up the atress board that stainless steel aggregate material constitutes, make it can bear bigger impact force when using, thereby use more permanent.

Drawings

FIG. 1 is a structural section view in elevation of the present invention;

3 FIG. 3 2 3 is 3 an 3 enlarged 3 view 3 of 3 a 3 portion 3 of 3 A 3- 3 A 3 of 3 FIG. 3 1 3 according 3 to 3 the 3 present 3 invention 3; 3

Fig. 3 is a structural section view of the top view of the present invention;

fig. 4 is a partial enlarged view of B-B in fig. 3 according to the present invention.

In the figure: the sealing gasket comprises an annular base body 1, a groove 2, a trapezoidal block 3, a sealing lip 4, a connecting spring 5, an extrusion block 6, a vertical rod 7, a stress rod 8, a stress plate 9, a stop block 10 and a sealing gasket 11.

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.

Referring to fig. 1-4, a valve stem seal ring with good sealing effect comprises an annular base 1, wherein the annular base 1 is a polytetrafluoroethylene-based composite material base, and is more durable due to the fact that the polytetrafluoroethylene composite material has outstanding thermal stability, corrosion resistance and tribological property, a groove 2 is formed in the section of the annular base 1 facing to pressure, trapezoidal blocks 3 are fixedly connected to the left side and the right side of the inner wall of the groove 2, the bottoms of the trapezoidal blocks 3 are slidably connected with the bottom of the inner wall of the groove 2, sealing lips 4 are arranged at the positions of the annular base 1 corresponding to the trapezoidal blocks 3, symmetrically arranged connecting springs 5 are fixedly connected to the bottom of the inner wall of the groove 2 and positioned between the two trapezoidal blocks 3, and extrusion blocks 6 matched with the trapezoidal blocks 3 are arranged at the tops of the two connecting springs 5, one side of the extrusion block 6, which is close to the inclined plane of the trapezoidal block 3, is in contact with the inclined plane of the trapezoidal block, one side of the extrusion block 6, which is close to the inclined plane of the trapezoidal block 3, is provided with an inclined plane matched with the extrusion block, one side of the extrusion block 6, which is close to the inclined plane of the trapezoidal block 3, is in sliding connection with the inclined plane of the trapezoidal block, a vertical rod 7 is fixedly connected to the midpoint of the bottom of the inner wall of the groove 2, the top of the vertical rod 7 penetrates through the extrusion block 6 and extends to the outside of the extrusion block, a stop block 10 is fixedly connected to the top of the vertical rod 7, the extrusion block 6 is prevented from being separated from the vertical rod 7 when sliding on the vertical rod 7 by the stop block 10, stress rods 8 are fixedly connected to the top of the extrusion block 6 and positioned at the left and right sides of the vertical rod 7, a sealing gasket 11 is fixedly connected to the top of the annular base body, the top of atress pole 8 runs through recess 2 and extends to its outside, the top that is located two atress poles 8 of recess 2 outside passes through atress board 9 fixed connection, atress board 9 is made by stainless steel or stainless steel alloy material, atress board 9 that total material is constituteed through setting up the stainless steel, make it can bear bigger impact force when using, thereby use more permanent, through annular base member 1, recess 2, trapezoidal piece 3, seal lip 4, coupling spring 5, the extrusion piece 6, pole setting 7, mutually supporting between atress pole 8 and the atress board 9, a valve rod sealing washer that sealed effectual has been realized, in the in-service use process, when the face-on pressure section of this device receives the effort, can make seal lip 4 propped open more, consequently, make its and the contact between the sealing element inner wall inseparabler, thereby reach better sealed effect.

During the use, when the meeting of this device receives the effort to the pressure section, can exert certain pressure to atress board 9 to make it move extrusion piece 6 downstream through atress pole 8, consequently make the inclined plane of extrusion piece 6 extrude the inclined plane of trapezoidal piece 3, thereby make trapezoidal piece 3 extrude the inner wall of recess 2, consequently can prop seal lip 4 more open, thereby make contact inseparabler between its and the inner wall of sealing element, thereby reach better sealed effect.

In summary, the following steps: this sealed effectual valve rod seal circle has solved the unsatisfactory problem of common valve rod seal circle seal effect through setting up annular base member 1, recess 2, trapezoidal piece 3, seal lip 4, coupling spring 5, extrusion piece 6, pole setting 7, atress pole 8 and atress board 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sealed effectual valve rod sealing washer, includes annular base member (1), its characterized in that: the pressure-facing section of the annular base body (1) is provided with a groove (2), the left side and the right side of the inner wall of the groove (2) are fixedly connected with trapezoidal blocks (3), the bottoms of the trapezoidal blocks (3) are in sliding connection with the bottoms of the inner walls of the groove (2), the positions of the annular base body (1) corresponding to the trapezoidal blocks (3) are respectively provided with a sealing lip (4), the bottoms of the inner walls of the groove (2) and the positions between the two trapezoidal blocks (3) are fixedly connected with symmetrically arranged connecting springs (5), the tops of the two connecting springs (5) are provided with extrusion blocks (6) matched with the trapezoidal blocks (3) for use, one side of each extrusion block (6) close to the inclined plane of the trapezoidal blocks (3) is in contact with each other, the middle point of the bottom of the inner wall of the groove (2) is fixedly connected with a vertical rod (7), the tops of the vertical rods (7) penetrate through the extrusion blocks, the equal fixedly connected with atress pole (8) in the left and right sides that the top of extrusion piece (6) just is located pole setting (7), the top of atress pole (8) runs through recess (2) and extends to its outside, and atress board (9) fixed connection is passed through at the top that is located two outside atress poles (8) of recess (2).

2. The valve rod sealing ring with good sealing effect according to claim 1, characterized in that: the annular matrix (1) is a polytetrafluoroethylene-based composite material matrix.

3. The valve rod sealing ring with good sealing effect according to claim 1, characterized in that: one side of the extrusion block (6) close to the inclined plane of the trapezoidal block (3) is provided with an inclined plane matched with the extrusion block, and one side of the extrusion block (6) close to the inclined plane of the trapezoidal block (3) is connected with the extrusion block in a sliding mode.

4. The valve rod sealing ring with good sealing effect according to claim 1, characterized in that: the top of the upright rod (7) is fixedly connected with a stop block (10).

5. The valve rod sealing ring with good sealing effect according to claim 1, characterized in that: the top of annular base member (1) just corresponds the position fixedly connected with sealed pad (11) of atress pole (8), sealed pad (11) and atress pole (8) sliding connection.

6. The valve rod sealing ring with good sealing effect according to claim 1, characterized in that: the stress plate (9) is made of stainless steel or stainless steel alloy material.