CN111288167A

CN111288167A - Elastic sealing gasket

Info

Publication number: CN111288167A
Application number: CN201811496169.5A
Authority: CN
Inventors: 马善生
Original assignee: Jiangsu Jintai Sealing Technology Co ltd
Current assignee: Jiangsu Jintai Sealing Technology Co ltd
Priority date: 2018-12-07
Filing date: 2018-12-07
Publication date: 2020-06-16

Abstract

The invention discloses an elastic sealing gasket, which comprises a lower backing plate, wherein the top end of the lower backing plate is fixedly connected with a first clamping sleeve, one end of the first clamping sleeve is fixedly connected with a first baffle plate, a second clamping sleeve is sleeved in the first clamping sleeve, one end of the second clamping sleeve is fixedly connected with a second baffle plate, the other end of the second clamping sleeve is fixedly connected with an upper backing plate, the middle part of the top end of the lower backing plate is fixedly connected with a plurality of springs, one ends of the springs are fixedly connected with the middle part of the bottom end of the upper backing plate, the edge side of the top end of the lower backing plate is fixedly connected with a sealing ring, an air bag is sleeved in the sealing ring, one side of the inner part of the lower backing plate is provided with an inflation hole, an inflation nozzle is arranged in the inflation hole, and one end. According to the invention, through the arrangement of the integral structure, the gasket has a better sealing effect, a damping effect and a prolonged service life.

Description

Elastic sealing gasket

Technical Field

The invention relates to the field of sealing elements, in particular to an elastic sealing gasket.

Background

The sealing gasket is a part commonly used in sealing gasket machinery, and the sealing gasket is required to be used for sealing the inside and the outside of a pipeline as long as a fluid is present in the pipeline, and has a sealing function. Most designs of current seal gasket are simple, use metal material or non-metal material to make simply, lead to seal gasket elasticity poor, and sealed effect is poor, and the gasket does not have the shock attenuation effect, when mechanical oscillation, can produce the extrusion force to the gasket, leads to the gasket to take place deformation, receives the damage for life is short.

The invention of patent No. 201620529565.3 proposes an elastic sealing gasket, in which a spring is provided to force the sealing ring to expand outwards by the spring force, so as to increase the sealing effect of the gasket, but the elastic sealing gasket has the following disadvantages: 1. the expansion of the sealing ring depends on a plurality of springs which are arranged in the gasket in a cross manner, and only part of points in the sealing ring receive the expansion force, so that the outward expansion force of the sealing ring is unevenly distributed, and the sealing effect is slightly insufficient.

2. Only set up horizontal spring in the structure, vertically do not have elasticity for this gasket does not have the shock attenuation effect, can vibrate the gasket in the mechanical motion process, leads to the gasket to damage easily, and life reduces.

Disclosure of Invention

The present invention is directed to a resilient sealing gasket to solve the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: an elastic sealing gasket comprises a lower backing plate, the top end of the lower backing plate is fixedly connected with a first clamping sleeve, one end of the first cutting sleeve is fixedly connected with a first baffle plate, a second cutting sleeve is sleeved in the first cutting sleeve, one end of the second cutting sleeve is fixedly connected with a second baffle plate, the other end of the second cutting sleeve is fixedly connected with an upper backing plate, the middle part of the top end of the lower backing plate is fixedly connected with a plurality of springs, one ends of the springs are fixedly connected with the middle part of the bottom end of the upper backing plate, the edge side of the top end of the lower backing plate is fixedly connected with a sealing ring, an air bag is sleeved inside the sealing ring, an inflation hole is arranged at one side inside the lower cushion plate, an inflation nozzle is arranged inside the inflation hole, one end of the inflating nozzle penetrates through the sealing ring to be communicated with the air bag, and the bottom end of the lower backing plate and the top end of the upper backing plate are fixedly connected with elastic cushions.

Preferably, the lower backing plate, the first cutting ferrule, the second cutting ferrule and the upper backing plate are all made of aluminum alloy.

Preferably, a plurality of the springs are uniformly distributed in a circular shape.

Preferably, the sealing ring and the elastic pad are both made of rubber materials.

Preferably, the height of the first ferrule is equal to the height of the second ferrule.

Preferably, the spring is made of spring steel having the designation 60Si2 Mn.

Preferably, the inner diameter of the first baffle is equal to the outer diameter of the cross section of the second ferrule, and the outer diameter of the second baffle is equal to the inner diameter of the cross section of the first ferrule.

Compared with the prior art, the invention has the beneficial effects that: 1. according to the invention, the air bag is arranged in the sealing ring, and the air bag is inflated to generate outward expansion force on the sealing ring by utilizing air pressure, so that the sealing ring can be uniformly expanded outwards, and the sealing property of the elastic sealing gasket is further improved.

2. According to the invention, the upper base plate and the lower base plate are arranged, and the longitudinal spring is arranged between the two base plates, so that when the elastic sealing gasket is vibrated integrally, the elastic force of the spring can offset part of the vibration force to play a role in damping, the gasket is not easy to damage, and the service life is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of an elastic sealing gasket of the present invention.

FIG. 2 is a top view of a lower gasket of a resilient gasket of the present invention.

In the figure: 1. a lower base plate; 2. a first ferrule; 3. a second ferrule; 4. an upper base plate; 5. a spring; 6. a seal ring; 7. an air bag; 8. an air charging nozzle; 9. an elastic pad; 10. an inflation hole; 11. a first baffle plate; 12. a second baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: an elastic sealing gasket comprises a lower backing plate 1, wherein the top end of the lower backing plate 1 is fixedly connected with a first clamping sleeve 2, one end of the first clamping sleeve 2 is fixedly connected with a first baffle 11, a second clamping sleeve 3 is sleeved in the first clamping sleeve 2, one end of the second clamping sleeve 3 is fixedly connected with a second baffle 12, the other end of the second clamping sleeve 3 is fixedly connected with an upper backing plate 4, the middle part of the top end of the lower backing plate 1 is fixedly connected with a plurality of springs 5, one ends of the springs 5 are fixedly connected with the middle part of the bottom end of the upper backing plate 4, the lateral side of the top end of the lower backing plate 1 is fixedly connected with a sealing ring 6, an air bag 7 is sleeved in the sealing ring 6, an inflation hole 10 is formed in one side of the interior of the lower backing plate 1, an inflation nozzle 8 is arranged in the inflation hole 10, one end of the inflation nozzle 8 penetrates through the, the bottom end of the lower backing plate 1 and the top end of the upper backing plate 4 are fixedly connected with elastic pads 9.

The lower base plate 1, the first clamping sleeve 2, the second clamping sleeve 3 and the upper base plate 4 are all made of aluminum alloy, so that the elastic sealing gasket is light in overall weight and high in hardness; the springs 5 are uniformly distributed in a circular shape, so that the elasticity of the springs 5 is uniformly distributed, and the damping effect is better; the sealing ring 6 and the elastic pad 9 are both made of rubber materials, the sealing ring 6 can be expanded outwards under the action of air pressure, and the elastic pad 9 can increase the damping effect of the gasket and has good wear resistance; the height of the first cutting sleeve 2 is equal to that of the second cutting sleeve 3, and the first cutting sleeve 2 and the second cutting sleeve 3 can be used as a support of the gasket together; the spring 5 is made of spring steel with the mark number of 60Si2Mn, so that the elasticity of the spring 5 is better; the inner diameter of the first baffle plate 11 is equal to the outer diameter of the cross section of the second clamping sleeve 3, and the outer diameter of the second baffle plate 12 is equal to the inner diameter of the cross section of the first clamping sleeve 2, so that the lower backing plate 1 and the upper backing plate 4 are tightly connected.

The working principle is as follows: when the gasket is in work, the air bag 7 is inflated from the inflating nozzle 8, the air bag 7 expands and generates outward expansion force on the sealing ring 6, so that the sealing ring 6 is in close contact with a pipeline, the gasket is placed at a specified position and is subjected to extrusion force, the upper backing plate 4 moves downwards, the spring 5 contracts under the action of pressure until the first baffle 11 is in contact with the upper backing plate 4, the second baffle 12 is in contact with the lower backing plate 1, and the first clamping sleeve 2 and the second clamping sleeve 3 are jointly used as pillars of the gasket.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. An elasticity seal gasket, includes lower backing plate (1), its characterized in that: the inflatable lower padding plate is characterized in that a first clamping sleeve (2) is fixedly connected to the top end of the lower padding plate (1), a first baffle (11) is fixedly connected to one end of the first clamping sleeve (2), a second clamping sleeve (3) is sleeved inside the first clamping sleeve (2), a second baffle (12) is fixedly connected to one end of the second clamping sleeve (3), an upper padding plate (4) is fixedly connected to the other end of the second clamping sleeve (3), a plurality of springs (5) are fixedly connected to the middle of the top end of the lower padding plate (1), one ends of the springs (5) are fixedly connected to the middle of the bottom end of the upper padding plate (4), a sealing ring (6) is fixedly connected to the lateral side of the top end of the lower padding plate (1), an air bag (7) is sleeved inside the sealing ring (6), an inflation hole (10) is formed in one side of the inside of the lower padding plate (1), and an inflation nozzle, one end of the inflating nozzle (8) penetrates through the sealing ring (6) and the air bag (7) to be communicated, and the bottom end of the lower padding plate (1) and the top end of the upper padding plate (4) are fixedly connected with elastic cushions (9).

2. A resilient sealing gasket according to claim 1, wherein: the lower backing plate (1), the first clamping sleeve (2), the second clamping sleeve (3) and the upper backing plate (4) are all made of aluminum alloy.

3. A resilient sealing gasket according to claim 1, wherein: the springs (5) are uniformly distributed in a circular shape.

4. A resilient sealing gasket according to claim 1, wherein: the sealing ring (6) and the elastic pad (9) are both made of rubber materials.

5. A resilient sealing gasket according to claim 1, wherein: the height of the first clamping sleeve (2) is equal to that of the second clamping sleeve (3).

6. A resilient sealing gasket according to claim 1, wherein: the spring (5) is made of spring steel with the mark number of 60Si2 Mn.

7. A resilient sealing gasket according to claim 1, wherein: the inner diameter of the first baffle (11) is equal to the outer diameter of the cross section of the second clamping sleeve (3), and the outer diameter of the second baffle (12) is equal to the inner diameter of the cross section of the first clamping sleeve (2).