CN219493265U - Valve seat with good rebound resilience - Google Patents

Abstract

The valve seat with good rebound resilience comprises a body 1, wherein a first end face 2, a second end face 3, an inner wall 4, an outer wall 5, a first sealing face 6, a second sealing face 7 and a supporting face 8 are arranged on the body 1, the first sealing face 6 is arranged between the first end face 2 and the inner wall 4, the second sealing face 7 is arranged between the second end face 3 and the inner wall 4, and the supporting face 8 is arranged between the second end face 3 and the outer wall 5. The supporting surface 8 has the cambered surface that the cross-section is semicircle arc shape, when the supporting surface 8 atress, because the cross-section of supporting surface 8 is semicircle arc shape, can be with the even distribution of force to semicircle arc-shaped's supporting point position, can bear bigger load, semicircle arc shape has elastic compensation simultaneously, can restore to original state after the load is unloaded. The first sealing surface 6 is provided with a convex rib 9, and the convex rib 9 can strengthen the sealing effect and improve the impact resistance.

Description

Valve seat with good rebound resilience

Technical Field

The utility model belongs to the field of sealing valves, and particularly relates to a valve seat with good rebound resilience.

Background

The valve seat is a component in the valve and is used for supporting the valve core to be at the full closing position and sealing the valve. When the valve seat is used, the valve seat is generally impacted by working medium to bear larger load, and the valve seat is in sealing failure due to excessive load. Meanwhile, the valve seat needs to have certain elasticity, and can recover the original state after the load is eliminated, so that the deformation is reduced.

In the prior art, as disclosed in CN214789163U, a compensation type rebound metal valve seat adopts a double-layer structure, a compensation area is designed between the outer ring and the inner ring of the valve seat, the compensation area can help sealing, and meanwhile, the rebound can be better due to the fact that the hardness difference exists between the two layers. However, the compensation area is in a bevel structure, and the impact resistance and rebound effect have room for improvement.

Disclosure of Invention

The utility model aims to provide a valve seat with good rebound resilience, which solves the problem that the impact resistance and rebound resilience effect are required to be improved in the prior art.

To this end, the utility model provides a valve seat with good rebound resilience, which comprises a body 1, wherein the body 1 is provided with a first end face 2, a second end face 3, an inner wall 4, an outer wall 5, a first sealing face 6, a second sealing face 7 and a supporting face 8, the first sealing face 6 is arranged between the first end face 2 and the inner wall 4, the second sealing face 7 is arranged between the second end face 3 and the inner wall 4, and the supporting face 8 is arranged between the second end face 3 and the outer wall 5.

Preferably, the body 1 is of annular configuration,

preferably, the first end face 2 is parallel to the second end face 3,

preferably, the outer wall 5 is perpendicular to the first end surface 2, and the inner wall 4 is perpendicular to the first end surface 2.

Preferably, the supporting surface 8 is an inward concave cambered surface.

Preferably, the cross section of the cambered surface is in a semicircular arc shape.

Preferably, the center of the semicircle is located on the intersection line of the outer wall 5 and the surface of the second end surface 3. When the supporting surface 8 is stressed, the force can be uniformly distributed to the semicircular supporting point position due to the semicircular arc shape of the cross section of the supporting surface 8, so that the supporting surface can bear larger load, and meanwhile, the semicircular arc shape has elastic compensation, so that the supporting surface can return to the original state after the load is removed.

Preferably, the maximum diameter of the first sealing surface 6 is larger than the maximum diameter of the second sealing surface 7.

Preferably, the thickness of the first sealing surface 6 is greater than the thickness of the second sealing surface 7.

Preferably, the first sealing surface 6 has a rib 9 thereon. The rib 9 can enhance the sealing effect and improve the impact resistance.

The beneficial effects are that:

(1) The utility model provides a valve seat with good rebound resilience, which can be sealed well by a first sealing surface 6 and a second sealing surface 7.

(2) The supporting surface 8 has the cambered surface that the cross-section is semicircle arc shape, when the supporting surface 8 atress, because the cross-section of supporting surface 8 is semicircle arc shape, can be with the even distribution of force to semicircle arc-shaped's supporting point position, can bear bigger load, semicircle arc shape has elastic compensation simultaneously, can restore to original state after the load is unloaded.

(3) The first sealing surface 6 is provided with a convex rib 9, and the convex rib 9 can strengthen the sealing effect and improve the impact resistance.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a resilient valve seat according to the present utility model.

FIG. 2 is a cross-sectional view of one embodiment of a resilient valve seat provided by the present utility model.

FIG. 3 is a schematic illustration of the installation of an embodiment of a resilient valve seat according to the present utility model.

In the figure: 1-body, 2-first terminal surface, 3-second terminal surface, 4-inner wall, 5 outer wall, 6 first sealing surface, 7 second sealing surface, 8 holding surface, 9-bead.

Detailed Description

The contents of the present utility model can be more easily understood by referring to the following detailed description of preferred embodiments of the present utility model and examples included. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. In case of conflict, the present specification, definitions, will control.

Example 1:

a valve seat with good rebound resilience as shown in figures 1-2 is suitable for sealing on a valve, and has impact resistance and good rebound resilience.

The utility model provides a disk seat that resilience is good, including body 1, body 1 is annular structure, there is first terminal surface 2 on the body 1, second terminal surface 3, inner wall 4, outer wall 5, first sealed face 6, second sealed face 7 and holding surface 8, first sealed face 6 is between first terminal surface 2 and inner wall 4, second sealed face 7 is between second terminal surface 3 and inner wall 4, holding surface 8 is between second terminal surface 3 and outer wall 5, first terminal surface 2 is parallel with second terminal surface 3, outer wall 5 is perpendicular with first terminal surface 2, inner wall 4 is perpendicular with first terminal surface 2. The total thickness of the body 1 is 16mm, and the diameter of the outer wall 5 isThe diameter of the inner wall 4 is>The maximum diameter of the first sealing surface 6 is +.>The maximum diameter of the second sealing surface 7 is +.>The thickness of the first sealing surface 6 is 9.09mm and the thickness of the second sealing surface 7 is 4mm.

The supporting surface 8 is an inward concave cambered surface, the section of the cambered surface is in a semicircular arc shape, and the center of the semicircular arc shape is positioned on the intersection line of the outer wall 5 and the surface of the second end surface 3. When the supporting surface 8 is stressed, the force can be uniformly distributed to the semicircular supporting point position due to the semicircular arc shape of the cross section of the supporting surface 8, so that the supporting surface can bear larger load, and meanwhile, the semicircular arc shape has elastic compensation, so that the supporting surface can be restored to the original state after the load is removed. The radius of the semicircular arc shape is 4mm.

Preferably, the first sealing surface 6 has a rib 9 thereon. The rib 9 can enhance the sealing effect and improve the impact resistance. The distance from the rib 9 to the first end face 2 is 5mm.

As shown in fig. 3, the valve seat is mounted in the groove, the first sealing surface 6 is matched with the first sealing element, the second sealing surface 7 is matched with the second sealing element, and the first sealing element presses the convex rib 9 on the first sealing surface 6, so that a good sealing effect is achieved. The first seal produces a greater impact force on the first sealing surface 6, which is evenly distributed to the support surface 8 and can withstand a greater load. When the first seal is removed, the support surface 8 provides elastic compensation to allow the valve seat to return to its original position.

The foregoing examples are illustrative only and serve to explain some features of the method of the utility model. The appended claims are intended to claim the broadest possible scope and the embodiments presented herein are merely illustrative of selected implementations based on combinations of all possible embodiments. It is, therefore, not the intention of the applicant that the appended claims be limited by the choice of examples illustrating the features of the utility model. Some numerical ranges used in the claims also include sub-ranges within which variations in these ranges should also be construed as being covered by the appended claims where possible.

Claims (10)

1. The utility model provides a disk seat that resilience is good, its characterized in that, the disk seat includes body (1), there is first terminal surface (2) on body (1), second terminal surface (3), inner wall (4), outer wall (5), first sealed face (6), second sealed face (7) and holding surface (8), first sealed face (6) are between first terminal surface (2) and inner wall (4), second sealed face (7) are between second terminal surface (3) and inner wall (4), holding surface (8) are between second terminal surface (3) and outer wall (5).

2. A resilient valve seat according to claim 1, characterized in that the body (1) is of annular construction.

3. A resilient valve seat according to claim 1, wherein the first end face (2) is parallel to the second end face (3).

4. A resilient valve seat according to claim 1, wherein the outer wall (5) is perpendicular to the first end face (2) and the inner wall (4) is perpendicular to the first end face (2).

5. A resilient valve seat according to claim 1, wherein the support surface (8) is an inwardly concave arcuate surface.

6. A resilient valve seat according to claim 5, wherein the arcuate surface has a semi-arcuate cross-section.

7. A resilient valve seat according to claim 6, wherein the centre of the semi-circular arc is at the intersection of the outer wall (5) and the face of the second end face (3).

8. A resilient valve seat according to claim 1, characterized in that the maximum diameter of the first sealing surface (6) is larger than the maximum diameter of the second sealing surface (7).

9. A resilient valve seat according to claim 1, characterized in that the thickness of the first sealing surface (6) is greater than the thickness of the second sealing surface (7).

10. A resilient valve seat according to claim 1, wherein the first sealing surface (6) has a ridge (9).