CN111188904A - Sealing device with automatic compensation function - Google Patents
Sealing device with automatic compensation function Download PDFInfo
- Publication number
- CN111188904A CN111188904A CN202010074516.6A CN202010074516A CN111188904A CN 111188904 A CN111188904 A CN 111188904A CN 202010074516 A CN202010074516 A CN 202010074516A CN 111188904 A CN111188904 A CN 111188904A
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- China
- Prior art keywords
- sealing
- pressure
- pressure regulating
- sealing device
- automatic compensation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/14—Joints for pipes of different diameters or cross-section
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a sealing device with an automatic compensation function, which belongs to the technical field of sealing and comprises a flexible sealing body for sealing and a pressure regulating component, wherein a pressure regulating cavity is arranged in the flexible sealing body, and the pressure regulating component is communicated with the pressure regulating cavity and is used for regulating the pressure in the pressure regulating cavity; the sealing device provided by the invention has a simple and compact structure, can automatically compensate the sealing pressure and the sealing gap, thereby effectively solving the defects in the prior art, being beneficial to prolonging the sealing service life and realizing better sealing effect; in addition, this sealing device can also adjust sealing pressure in the use to improve sealed effect or satisfy different sealing pressure's demand, be particularly useful for the sealed of fluid material.
Description
Technical Field
The invention relates to the technical field of sealing, in particular to a sealing device with an automatic compensation function.
Background
In the prior art, sealing rings are generally adopted for sealing, and the sealing rings are various, such as O-shaped sealing rings, rectangular sealing rings, U-shaped sealing rings, V-shaped sealing rings and the like, so that the requirements of different occasions can be met.
However, in the existing sealing ring, due to factors such as errors of a production process and matching degree of an assembly space, a gap usually exists between the sealing ring and a sealed surface, which affects a sealing effect, and after the existing sealing ring is used for a period of time, the sealing ring is usually gradually lost due to abrasion and deformation of the sealing ring, so that a solution is needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a sealing device with a simple and compact structure, which can automatically compensate the sealing pressure and the sealing gap, thereby overcoming the defects in the prior art, being beneficial to prolonging the sealing service life and realizing better sealing effect, and being particularly suitable for sealing fluid materials.
The technical scheme adopted by the invention is as follows:
the utility model provides a sealing device with automatic compensation function, is including being used for sealed flexible seal, pressure regulating part, be provided with the pressure regulating cavity in the flexible seal, the pressure regulating part with the pressure regulating cavity is linked together, is used for adjusting pressure in the pressure regulating cavity. In the scheme, the pressure regulating component is utilized to inject or extract gas or liquid into or out of the pressure regulating cavity, so that the pressure in the pressure regulating cavity is changed, the pressure in the pressure regulating cavity can be maintained, and the flexible sealing body has certain elasticity and can properly expand and/or deform when the pressure in the pressure regulating cavity is changed; when the sealing device is used, the flexible sealing body is arranged at a position to be sealed, and a user can inject gas or liquid into the pressure regulating cavity through the pressure regulating part according to the sealing requirement, such as factors such as the sealing pressure and the like, so as to increase the pressure in the pressure regulating cavity, so that the flexible sealing body not only can automatically compensate the sealing pressure, but also can automatically compensate the sealing gap through deformation under the action of the internal pressure; and because the existence of the pressure in the flexible sealing body, when the flexible sealing body is worn and damaged and deformed because of the external pressure, the flexible sealing body can realize automatic compensation under the effect of the internal pressure, thereby avoiding sealing failure, effectively solving the defects existing in the prior art, being beneficial to prolonging the sealing service life, realizing better sealing effect, and being especially suitable for sealing fluid materials.
In order to facilitate the operation, the flexible sealing device further comprises an extension pipe, one end of the extension pipe is connected with the flexible sealing body and communicated with the pressure regulating cavity, and the pressure regulating part is arranged at the other end of the extension pipe.
Preferably, the extension pipe is a hose or a plastic pipe or a metal pipe. The arrangement of the extension pipe is more convenient for practical operation and is particularly suitable for occasions with limited structures or spaces.
Preferably, the pressure regulating component is an airtight core or a one-way valve. The pressure in the pressure regulating cavity can be effectively regulated, and the pressure in the pressure regulating cavity can be effectively maintained after the set pressure is reached, so that more stable and durable sealing is realized.
Preferably, the flexible sealing body is made of rubber or silica gel. The pressure-bearing sealing device can bear certain pressure to realize sealing, and can have certain deformation capacity under the action of internal pressure to realize the automatic compensation function.
Preferably, the flexible sealing body is of a circular structure, a rectangular ring structure, a U-shaped structure, a V-shaped structure or a Y-shaped structure. So as to meet the requirements of different occasions.
Compared with the prior art, the sealing device with the automatic compensation function, which is provided by the invention, has a simple and compact structure, can automatically compensate the sealing pressure and the sealing gap, thereby effectively solving the defects in the prior art, being beneficial to prolonging the sealing service life and realizing better sealing effect; in addition, this sealing device can also adjust sealing pressure in the use to improve sealed effect or satisfy different sealed demands, be particularly useful for the sealed of fluid material.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a sealing device with an automatic compensation function according to embodiment 1 of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a front view of another sealing apparatus with an automatic compensation function according to embodiment 1 of the present invention.
Fig. 4 is a schematic view of a sealing device with an automatic compensation function according to embodiment 1 of the present invention, installed between a first fluid material conveying pipe and a second fluid material conveying pipe.
Fig. 5 is a right side view of fig. 4.
Description of the drawings
A flexible sealing body 101, a pressure regulating cavity 102, an extension pipe 103, a pressure regulating part 104,
A first fluid material conveying pipe 201 and a second fluid material conveying pipe 202.
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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, fig. 2 and fig. 4, in the embodiment, a sealing device with an automatic compensation function is provided, and includes a flexible sealing body 101 for sealing, and a pressure regulating component 104, where a pressure regulating cavity 102 is disposed in the flexible sealing body 101, and the pressure regulating component 104 is communicated with the pressure regulating cavity 102 and is used for regulating a pressure in the pressure regulating cavity 102. In this embodiment, a user can use the pressure regulating member 104 to inject or extract gas or liquid into or from the pressure regulating cavity 102, thereby changing the pressure inside the pressure regulating cavity 102 and maintaining the pressure inside the pressure regulating cavity 102, and the flexible sealing body 101 has a certain elasticity and can expand and/or deform appropriately when the pressure inside the pressure regulating cavity 102 changes; when the sealing device is used, the flexible sealing body 101 is arranged at a position to be sealed, and a user can inject gas or liquid into the pressure regulating cavity 102 through the pressure regulating part 104 according to the sealing requirements, such as the sealing pressure and other factors, so as to increase the pressure in the pressure regulating cavity 102, so that the sealing pressure can be automatically compensated and the sealing gap can be automatically compensated through deformation under the action of the internal pressure of the flexible sealing body 101; and because the existence of the pressure in the flexible sealing body 101, when the flexible sealing body 101 is abraded and deformed due to the external pressure, the flexible sealing body 101 can realize automatic compensation under the action of the internal pressure, thereby avoiding sealing failure, effectively solving the defects existing in the prior art, being beneficial to prolonging the sealing service life and realizing better sealing effect.
For the convenience of practical operation, especially for the convenience of connecting the pressure regulating member 104 with the inflation device or the water injection device, in a further aspect, the flexible sealing body 101 further comprises an extension pipe 103, one end of the extension pipe 103 is connected with the flexible sealing body 103 and is communicated with the pressure regulating cavity 102, and the pressure regulating member 104 is arranged at the other end of the extension pipe 103. By arranging the extension pipe 103, the operation space is improved, and the operation is facilitated.
It will be appreciated that there are various embodiments of the extension tube 103, and preferably, the extension tube 103 may be a hose or a plastic or metal tube, etc. The device is more convenient for practical operation, and is particularly suitable for occasions with limited structure or space; it will be appreciated that the hose in this embodiment is a tube that is not expandable under the influence of internal pressure and will not be described in detail here.
Preferably, the pressure adjusting member 104 may be an airtight core or a check valve. The pressure in the pressure regulating cavity 102 can be effectively regulated, and the pressure in the pressure regulating cavity 102 can be effectively maintained after the set pressure is reached, so that more stable and durable sealing is realized; for example, as shown in fig. 1 or fig. 2, in the present embodiment, the pressure regulating member 104 is an airtight core, and the airtight core may have a conventional airtight core structure, and when in use, gas or liquid may be injected into the pressure regulating cavity 102 by being connected to a conventional pumping device or a water injection device, thereby changing the pressure of the pressure regulating cavity 102.
Preferably, the flexible sealing body 101 may be made of rubber or silicone. The pressure-bearing sealing device can bear certain pressure to realize sealing, and can have certain deformation capacity under the action of internal pressure to realize the automatic compensation function.
The flexible sealing body 101 can have various shapes and structures according to different application occasions, and preferably, the flexible sealing body 101 is a circular structure, a rectangular ring structure, a U-shaped structure, a V-shaped structure or a Y-shaped structure; so as to be suitable for the requirements of different occasions; the pressure regulating cavity 102 in the flexible sealing body 101 may be the same as or adapted to the shape of the flexible sealing body 101, for example, when the flexible sealing body 101 is a circular ring structure, the pressure regulating cavity 102 may also be a circular ring structure, as shown in fig. 1 or fig. 2, and when the flexible sealing body 101 is a rectangular ring structure, the pressure regulating cavity 102 may also be a rectangular ring structure, as shown in fig. 3; the flexible sealing body 101 is beneficial to uniform pressure distribution along all directions of the sealing space under the action of internal pressure, so that a better sealing effect is realized.
The sealing device with automatic compensation function provided by this embodiment is particularly suitable for sealing fluid materials under pressure, for example, a sealing ring needs to be arranged between the first fluid material conveying pipe 201 and the second fluid material conveying pipe 202 with different diameters for sealing, the flexible sealing body 101 in the sealing device provided by this embodiment may be sleeved between the first fluid material conveying pipe 201 and the second fluid material conveying pipe 202, as shown in fig. 4 and 5, then gas or liquid is injected into the pressure regulating cavity 102 through the pressure regulating part 104 to gradually increase the pressure in the pressure regulating cavity 102, so that the flexible sealing body 101 expands under the action of internal pressure, on one hand, the flexible sealing body 101 may respectively press the inner side surface of the first fluid material conveying pipe 201 and the outer side surface of the second fluid material conveying pipe 202 to achieve the sealing effect, and on the other hand, the flexible sealing body 101 may automatically deform and compensate the sealing gap according to the constraint at the installation position, the flexible sealing body 101 can be perfectly attached to the inner side surface of the first fluid material conveying pipe 201 and the outer side surface of the second fluid material conveying pipe 202, and a better sealing effect is achieved; in addition, when the sealing device is installed, the pressure in the pressure regulating cavity 102 can be adjusted according to the sealing requirement, and automatic perfect sealing can be realized as long as the pressure in the pressure regulating cavity 102 is greater than the pressure of the fluid material at the sealing position, so that the sealing service life is prolonged, and a better sealing effect is realized; moreover, when the pressure of the fluid material is changed, the pressure in the pressure regulating cavity 102 can be correspondingly regulated through the pressure regulating part 104, so that the sealing device can meet different sealing pressure requirements, and is more convenient to use and higher in practicability.
It is understood that in this embodiment, the expansion may be the expansion of the flexible sealing body 101 from the deflated state to the gradual filling process, or the expansion may be caused by elastic or plastic deformation of the surface of the flexible sealing body 101.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (6)
1. The utility model provides a sealing device with automatic compensation function which characterized in that, is including being used for sealed flexible seal, pressure regulating part, be provided with the pressure regulating cavity in the flexible seal, the pressure regulating part with the pressure regulating cavity is linked together, is used for adjusting pressure in the pressure regulating cavity.
2. The sealing device with the automatic compensation function according to claim 1, further comprising an extension pipe, wherein one end of the extension pipe is connected with the flexible sealing body and is communicated with the pressure regulating cavity, and the pressure regulating component is arranged at the other end of the extension pipe.
3. The sealing device with automatic compensation function according to claim 1 or 2, wherein the pressure regulating member is an airtight core or a check valve.
4. The sealing device with the automatic compensation function according to claim 1 or 2, wherein the flexible sealing body is made of rubber or silicon rubber.
5. The sealing device with automatic compensation function according to claim 1 or 2, wherein the flexible sealing body is a circular ring structure, a rectangular ring structure, a U-shaped structure, a V-shaped structure or a Y-shaped structure.
6. The sealing device with automatic compensation function according to claim 2, wherein the extension pipe is a hose or a plastic pipe or a metal pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010074516.6A CN111188904A (en) | 2020-01-22 | 2020-01-22 | Sealing device with automatic compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010074516.6A CN111188904A (en) | 2020-01-22 | 2020-01-22 | Sealing device with automatic compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111188904A true CN111188904A (en) | 2020-05-22 |
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ID=70704245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010074516.6A Pending CN111188904A (en) | 2020-01-22 | 2020-01-22 | Sealing device with automatic compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111188904A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115930020A (en) * | 2022-12-28 | 2023-04-07 | 江苏大明波纹管有限公司 | Corrugated expansion joint with sealing filler structure |
| WO2023226180A1 (en) * | 2022-05-25 | 2023-11-30 | 宁德时代新能源科技股份有限公司 | Feeding device and gluing system |
-
2020
- 2020-01-22 CN CN202010074516.6A patent/CN111188904A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226180A1 (en) * | 2022-05-25 | 2023-11-30 | 宁德时代新能源科技股份有限公司 | Feeding device and gluing system |
| CN115930020A (en) * | 2022-12-28 | 2023-04-07 | 江苏大明波纹管有限公司 | Corrugated expansion joint with sealing filler structure |
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