CN219139811U - Sealing washer that anti deformability is strong - Google Patents

Abstract

The utility model relates to a sealing ring with strong deformation resistance, which comprises: the device comprises a body, a supporting piece, a reinforcing ring and a spring. An annular mounting groove is arranged in the body. The support piece is annular to locate in the mounting groove, the support piece is equipped with two, and is parallel interval's setting along the axial of body. The strengthening ring is arranged in the mounting groove and clamped between the two supporting sheets, the strengthening ring comprises an inner strengthening ring and an outer strengthening ring, and the outer strengthening ring is sleeved outside the inner strengthening ring and is provided with a space with the inner strengthening ring. The spring is arranged in the mounting groove and clamped between the two supporting plates, two ends of the spring are respectively abutted against the inner reinforcing ring and the outer reinforcing ring, and the spring is provided with a plurality of springs and is arranged at intervals in the circumferential direction. When the sealing ring body is impacted by external force, the outer reinforcing ring moves to one side close to the inner reinforcing ring and compresses the spring to buffer the impact force. When the external force disappears, the spring can recover deformation, so that the sealing ring recovers the original shape, and the deformation resistance of the sealing ring is improved.

Description

Sealing washer that anti deformability is strong

Technical Field

The utility model relates to the technical field of sealing rings, in particular to a sealing ring with strong deformation resistance.

Background

Sealing is usually carried out by adopting a sealing ring structure in a sealing structure of a water pipe or a hydraulic pipeline, and the strength of the sealing ring is not high due to the fact that the sealing ring is usually made of rubber or silica gel materials. The existing rubber sealing ring has the problem of easy deformation after long-time use, and the caused rubber sealing ring is not tightly attached, so that the original sealing property of the rubber sealing ring is lost, and the sealing property is poor.

In the related art, in order to avoid deformation of the seal ring caused by external force or environmental changes such as external temperature during use. And a plastic steel ring is arranged in the sealing ring to improve the deformation resistance of the sealing ring. However, when the sealing ring is impacted by a large external force, the plastic steel ring can possibly generate unrecoverable metal plastic deformation, but the sealing ring can not recover the original shape after deformation, so that the sealing effect is affected.

Disclosure of Invention

The utility model aims to provide a sealing ring with strong deformation resistance, so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model adopts the following technical scheme.

The utility model provides a sealing ring with strong deformation resistance, which comprises: the body is internally provided with an annular mounting groove; the support sheets are annular and arranged in the mounting groove, and the two support sheets are arranged in parallel at intervals along the axial direction of the body; the reinforcing ring is arranged in the mounting groove and clamped between the two supporting sheets, the reinforcing ring comprises an inner reinforcing ring and an outer reinforcing ring, and the outer reinforcing ring is sleeved outside the inner reinforcing ring and is provided with a space with the inner reinforcing ring; the springs are arranged in the mounting grooves and clamped between the two supporting sheets, two ends of each spring are respectively abutted to the inner reinforcing ring and the outer reinforcing ring, and the springs are arranged in a plurality and are circumferentially arranged at intervals.

According to some embodiments of the present application, a positioning groove is formed in an outer peripheral wall of the inner reinforcement ring, the positioning groove extends along a radial direction of the body, and a plurality of positioning grooves are formed and are circumferentially arranged at intervals; positioning columns are arranged on the inner peripheral wall of the outer fastening ring in a protruding mode, extend along the radial direction of the body, are arranged in a plurality of mode, and are arranged at intervals in the circumferential direction; the positioning columns are inserted in the positioning grooves in a one-to-one correspondence manner, and a movable gap is formed between the positioning columns and the bottom surfaces of the positioning grooves.

In some embodiments of the present application, the positioning groove has an opening in an axial direction of the body; the positioning column is inserted into the positioning groove through the opening.

In some embodiments of the present application, positioning blocks are protruding from the outer peripheral wall of the inner reinforcing ring, and the positioning blocks are provided in a plurality of circumferentially spaced positions; the positioning groove is arranged on the positioning block.

In some embodiments of the present application, the thickness of the inner stiffening ring is greater than the thickness of the outer stiffening ring in a radial direction of the body.

In some embodiments of the present application, a first fixing column is protruding on the outer peripheral wall of the inner reinforcing ring; the inner peripheral wall of the outer fastening ring is provided with a second fixing column in a protruding mode; the first fixing columns and the second fixing columns form a fixing structure, and a plurality of fixing structures are arranged at intervals in the circumferential direction; the springs are in one-to-one correspondence with the fixing structures, and the two ends of each spring are sleeved on the first fixing columns and the second fixing columns respectively.

In some embodiments of the present application, the length of the first fixing post is greater than the second fixing post.

In some embodiments of the present application, in a radial direction of the body, a width of the support piece is equal to or greater than a distance between an inner peripheral wall of the inner reinforcing ring and an outer peripheral wall of the outer reinforcing ring.

In some embodiments of the present application, the support sheet and the reinforcing ring are made of stainless steel.

As can be seen from the technical scheme, the embodiment of the utility model has at least the following advantages and positive effects:

in the sealing ring with strong deformation resistance, the structural strength of the sealing ring is enhanced by the reinforcing ring arranged in the sealing ring body, and the deformation resistance of the sealing ring is improved. The two ends of the spring are respectively abutted to the inner reinforcing ring and the outer reinforcing ring, the inner reinforcing ring is used as an inner fixed supporting piece, the outer reinforcing ring is used as an outer movable supporting piece, when the sealing ring body is impacted by external force in the radial direction, the outer reinforcing ring moves towards one side close to the inner reinforcing ring and compresses the spring, and the spring can buffer the impact force suffered by the sealing ring body. When the external force disappears, the spring can recover deformation under the action of self elasticity, and drives the outer reinforcing ring to reset, so that the sealing ring recovers the original form, and therefore, the reinforcing ring can not only strengthen the structural strength of the sealing ring, but also avoid irreversible metal plastic deformation of the reinforcing ring, and the deformation resistance of the sealing ring is greatly improved. When the sealing ring body is impacted by external force in the axial direction, the sealing ring body can be supported by the two supporting pieces and the reinforcing ring clamped between the two supporting pieces, and the deformation resistance of the sealing ring can be improved.

Drawings

FIG. 1 is a schematic structural view of a seal ring with high deformation resistance according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is an enlarged cross-sectional view of the seal ring of fig. 2.

Fig. 4 is a schematic view of the structure of fig. 1 with the body removed.

Fig. 5 is a schematic view of the structure of fig. 4 with a support sheet removed.

Fig. 6 is an enlarged schematic view of the area a in fig. 4.

The reference numerals are explained as follows: 1. a body; 2. a support sheet; 3. an inner reinforcing ring; 31. a first fixing column; 32. a positioning block; 321. a positioning groove; 4. an outer reinforcing ring; 41. a second fixing column; 42. positioning columns; 5. and (3) a spring.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a seal ring with high deformation resistance according to an embodiment of the utility model. Fig. 2 is a cross-sectional view of fig. 1. Fig. 3 is an enlarged cross-sectional view of the seal ring of fig. 2.

Fig. 4 is a schematic view of the structure of fig. 1 with the body removed. The sealing ring with high deformation resistance provided by the embodiment of the utility model comprises a body 1, a supporting sheet 2, a reinforcing ring and a spring 5.

An annular mounting groove is arranged in the body 1. The support piece 2 is annular to locate the mounting groove, support piece 2 is equipped with two, and is parallel interval's setting along the axial of body 1. The reinforcing ring is arranged in the mounting groove and clamped between the two supporting plates 2, the reinforcing ring comprises an inner reinforcing ring 3 and an outer reinforcing ring 4, and the outer reinforcing ring 4 is sleeved outside the inner reinforcing ring 3 and is spaced from the inner reinforcing ring 3. The springs 5 are arranged in the mounting grooves and clamped between the two supporting plates 2, two ends of each spring 5 are respectively abutted against the inner reinforcing ring 3 and the outer reinforcing ring 4, and a plurality of springs 5 are arranged at intervals in the circumferential direction.

The structural strength of the sealing ring is enhanced by the reinforcing ring arranged in the sealing ring body 1, and the deformation resistance of the sealing ring is improved. The two ends of the spring 5 are respectively abutted against the inner reinforcing ring 3 and the outer reinforcing ring 4, the inner reinforcing ring 3 is used as an inner fixed supporting piece, the outer reinforcing ring 4 is used as an outer movable supporting piece, when the sealing ring body 1 is impacted by external force in the radial direction, the outer reinforcing ring 4 moves towards the side close to the inner reinforcing ring 3, the spring 5 is compressed, and the spring 5 can buffer impact force received by the sealing ring body 1. When the external force disappears, the spring 5 can recover deformation under the action of self elasticity to drive the outer reinforcing ring 4 to reset, so that the sealing ring recovers the original form, and therefore, the reinforcing ring can not only strengthen the structural strength of the sealing ring, but also avoid irreversible metal plastic deformation of the reinforcing ring, and the deformation resistance of the sealing ring is greatly improved. When the sealing ring body 1 is impacted by external force in the axial direction, the sealing ring body 1 can be supported by the two supporting plates 2 and the reinforcing ring clamped between the two supporting plates 2, and the deformation resistance of the sealing ring can be improved.

The seal ring is deformed mainly in the radial direction, and therefore the spring 5 serves to cushion the impact force received by the seal ring in the radial direction.

The consideration of the outer reinforcement ring 4 as an outer movable support is based on the inner reinforcement ring 3 as an inner fixed support. The thickness of the inner reinforcing ring 3 is greater than that of the outer reinforcing ring 4 in the radial direction of the body 1 to improve the structural strength of the inner reinforcing ring 3 as a fixed support.

Referring to fig. 3, the outer peripheral wall of the inner reinforcing ring 3 is provided with a first fixing post 31. The second fixing post 41 protrudes from the inner peripheral wall of the outer reinforcing ring 4. The first fixing post 31 and the second fixing post 41 form a fixing structure, and the fixing structure is provided in plurality and is circumferentially arranged at intervals. The springs 5 are in one-to-one correspondence with the fixing structures, and two ends of each spring 5 are respectively sleeved on the first fixing column 31 and the second fixing column 41. The spring 5 is positioned by the first fixing column 31 and the second fixing column 41, and the spring 5 is prevented from being dislocated.

The term "plurality" may be understood as two or more, for example two, three and more. That is, the number of the springs 5, the first fixing posts 31 and the second fixing posts may be two, three or more.

Referring to fig. 5, fig. 5 is a schematic view of fig. 4 with a support sheet removed. In the present embodiment, the number of the springs 5, the first fixing posts 31 and the second fixing posts is eight, and are arranged at equal intervals in the circumferential direction of the body 1.

Referring to fig. 3, in an embodiment, the length of the first fixing post 31 is greater than that of the second fixing post 41, and the first fixing post 31 positions one end of the spring 5 and guides the elastic deformation of the spring 5, so that the spring 5 can operate more stably in the compression and return processes. The second fixing post 41 positions the other end of the spring 5.

Referring to fig. 5 and 6, fig. 6 is an enlarged schematic view of the area a in fig. 5. The outer peripheral wall of the inner reinforcing ring 3 is provided with positioning grooves 321, the positioning grooves 321 extend along the radial direction of the body 1, and the positioning grooves 321 are provided with a plurality of positioning grooves and are circumferentially arranged at intervals. The inner peripheral wall of the outer reinforcing ring 4 is provided with positioning columns 42 in a protruding manner, the positioning columns 42 extend along the radial direction of the body 1, and the positioning columns 42 are provided in a plurality of circumferentially spaced manner. The positioning posts 42 are inserted into the positioning slots 321 in a one-to-one correspondence manner, and a movable gap is formed between the positioning posts 42 and the bottom surface of the positioning slots 321. By utilizing the cooperation of the positioning column 42 and the positioning groove 321, the deformation of the outer reinforcing ring 4 in the radial direction is guided, so that the dislocation of the spring 5 in the compression and resetting processes can be avoided.

The number of the positioning grooves 321 and the positioning posts 42 may be two, three or more. In this embodiment, the number of the positioning grooves 321 and the positioning posts 42 is four.

The clearance between the positioning posts 42 and the bottom surface of the positioning slot 321 provides room for the outer stiffening ring 4 to move toward the inner stiffening ring 3. When the impact force received by the seal ring body 1 causes the outer reinforcing ring 4 to move toward the inner reinforcing ring 3 until the positioning post 42 abuts against the bottom surface of the positioning groove 321, the positioning post 42 can form a rigid support between the outer reinforcing ring 4 and the inner reinforcing ring 3.

And, after the inner reinforcing ring 3 and the outer reinforcing ring 4 are positioned and assembled by utilizing the cooperation of the positioning column 42 and the positioning groove 321, the first fixing column 31 can be aligned with the second fixing column 41 to form a fixing structure.

In this embodiment, the outer peripheral wall of the inner reinforcing ring 3 is provided with a plurality of positioning blocks 32, the positioning blocks 32 are circumferentially spaced apart, and the positioning grooves 321 are formed in the positioning blocks 32. In other embodiments, the positioning groove 321 may be directly recessed on the outer peripheral wall of the inner reinforcing ring 3.

The positioning groove 321 is provided with an opening in the axial direction of the body 1, when the inner reinforcing ring 3 and the outer reinforcing ring 4 are assembled, the outer reinforcing ring 4 is aligned with the inner reinforcing ring 3 in the axial direction, the outer reinforcing ring 4 and the inner reinforcing ring 3 are coaxially arranged, the positioning post 42 is aligned with the opening in the axial direction of the positioning groove 321, and then the positioning post 42 is inserted into the positioning groove 321 through the opening, so that the inner reinforcing ring 3 and the outer reinforcing ring 4 can be assembled quickly.

The supporting sheet 2 and the reinforcing ring are made of stainless steel materials, and have good structural strength, strong deformation resistance and corrosion resistance. The sealing ring body 1 can be made of neoprene, ethylene propylene rubber, silicon rubber and other materials.

When the sealing ring is manufactured, part of unvulcanized rubber is paved in a cavity of the formed sealing ring, then a supporting sheet 2 is put on, an inner reinforcing ring 3 is placed on the supporting sheet 2, then an outer reinforcing ring 4 is sleeved on the inner reinforcing ring 3 through the matching of a positioning column 42 and a positioning groove 321, and the outer reinforcing ring 4 is also placed on the supporting sheet 2. Then, a spring 5 is assembled, another supporting plate 2 is taken and placed above the inner reinforcing ring 3 and the outer reinforcing ring 4, unvulcanized rubber is continuously filled in the cavity, and finally, the sealing ring with strong deformation resistance is obtained through vulcanization molding.

The two support plates 2 can avoid the problem that unvulcanized rubber enters the gap between the inner reinforcing ring 3 and the outer reinforcing ring 4 during filling, resulting in the travel of the springs 5 being blocked.

In one embodiment, therefore, the width of the support piece 2 is equal to or greater than the distance between the inner peripheral wall of the inner reinforcing ring 3 and the outer peripheral wall of the outer reinforcing ring 4 in the radial direction of the body 1, so that the unvulcanized rubber can be better prevented from entering the gap between the inner reinforcing ring 3 and the outer reinforcing ring 4 at the time of filling.

In the inventive embodiments, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the embodiments of the utility model will be understood by those skilled in the art according to the specific circumstances.

In the description of the embodiments of the utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the utility model and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the utility model and is not intended to limit the embodiment of the utility model, and various modifications and variations can be made to the embodiment of the utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model should be included in the protection scope of the embodiments of the present utility model.

Claims (9)

1. A gasket having high resistance to deformation, comprising:

the body is internally provided with an annular mounting groove;

the support sheets are annular and arranged in the mounting groove, and the two support sheets are arranged in parallel at intervals along the axial direction of the body;

the reinforcing ring is arranged in the mounting groove and clamped between the two supporting sheets, the reinforcing ring comprises an inner reinforcing ring and an outer reinforcing ring, and the outer reinforcing ring is sleeved outside the inner reinforcing ring and is provided with a space with the inner reinforcing ring;

the springs are arranged in the mounting grooves and clamped between the two supporting sheets, two ends of each spring are respectively abutted to the inner reinforcing ring and the outer reinforcing ring, and the springs are arranged in a plurality and are circumferentially arranged at intervals.

2. The sealing ring with strong deformation resistance according to claim 1, wherein a plurality of positioning grooves are arranged on the outer peripheral wall of the inner reinforcing ring, the positioning grooves extend along the radial direction of the body, and the positioning grooves are arranged at intervals in the circumferential direction;

positioning columns are arranged on the inner peripheral wall of the outer fastening ring in a protruding mode, extend along the radial direction of the body, are arranged in a plurality of mode, and are arranged at intervals in the circumferential direction;

the positioning columns are inserted in the positioning grooves in a one-to-one correspondence manner, and a movable gap is formed between the positioning columns and the bottom surfaces of the positioning grooves.

3. The gasket of claim 2 wherein said locating groove has an opening in the axial direction of said body;

the positioning column is inserted into the positioning groove through the opening.

4. The sealing ring with strong deformation resistance according to claim 2, wherein a plurality of positioning blocks are arranged on the outer peripheral wall of the inner reinforcing ring in a protruding manner, and the positioning blocks are arranged at intervals in the circumferential direction;

the positioning groove is arranged on the positioning block.

5. The deformation resistant seal according to claim 1, wherein the thickness of said inner reinforcing ring is greater than the thickness of said outer reinforcing ring in the radial direction of said body.

6. The gasket with high deformation resistance according to claim 1, wherein the outer peripheral wall of the inner reinforcing ring is provided with a first fixing column in a protruding manner;

the inner peripheral wall of the outer fastening ring is provided with a second fixing column in a protruding mode;

the first fixing columns and the second fixing columns form a fixing structure, and a plurality of fixing structures are arranged at intervals in the circumferential direction;

the springs are in one-to-one correspondence with the fixing structures, and the two ends of each spring are sleeved on the first fixing columns and the second fixing columns respectively.

7. The high deformation resistant gasket of claim 6 wherein said first securing post is longer than said second securing post.

8. The gasket of claim 1 wherein said support tab has a width in a radial direction of said body that is equal to or greater than the distance between the inner peripheral wall of said inner reinforcing ring and the outer peripheral wall of said outer reinforcing ring.

9. The high deformation resistant seal ring of claim 1, wherein said support plate and said reinforcing ring are each made of stainless steel.

Images