CN216867485U - Hollow sealing ring with respiration function - Google Patents
Hollow sealing ring with respiration function Download PDFInfo
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- CN216867485U CN216867485U CN202220594457.XU CN202220594457U CN216867485U CN 216867485 U CN216867485 U CN 216867485U CN 202220594457 U CN202220594457 U CN 202220594457U CN 216867485 U CN216867485 U CN 216867485U
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- sealing ring
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- breather valve
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Abstract
The utility model belongs to the technical field of sealing rings, and particularly relates to a hollow sealing ring with a breathing function. The problem of the sunken technique that current totally closed cavity sealing washer produces the negative pressure in the sealing washer and leads to after long-term compression is solved. The sealing ring comprises a sealing ring body, wherein a mounting cavity is formed in one side of the sealing ring body and is communicated with an inner cavity of the sealing ring body; an exchange mechanism for exchanging the inner cavity with the outside air is arranged in the mounting cavity. When the sealing ring is pressed, the sealing valve is closed, and the sealing effect of the sealing ring is realized; when the sealing ring is released from pressure, the sealing valve is opened by the acting force of air pressure, at the moment, external air enters the inner cavity, and the sealing ring is restored to the original shape.
Description
Technical Field
The utility model belongs to the technical field of sealing rings, and particularly relates to a hollow sealing ring with a breathing function.
Background
A common totally-enclosed hollow sealing ring structure is shown in figure 1. In the using process, the sealing ring 1a is arranged in the mounting groove 2a, the sealing pressing edge 3a is directly contacted with the sealing ring 1a, and when the sealing ring 1a is extruded by the sealing pressing edge 3a, on one hand, the rubber of the sealing ring 1a deforms and then generates sealing force to realize sealing; on the other hand, as the seal ring 1a is compressed, the air trapped in the seal ring 1a generates a reaction force acting on the seal ring 1a, which further increases the sealing force of the seal ring 1a, as shown in fig. 2. Although the existing hollow sealing ring has good sealing effect, the following problems exist: because the rubber has air permeability, after the sealing ring 1a is compressed for a long time, because the internal air is lost, when the pressure is removed, negative pressure is generated in the sealing ring 1a because of the air loss, a concave part 4a is generated in the middle of the sealing ring 1a as shown in figure 3, the sealing force is weakened, and the sealing ring leaks water.
Therefore, I especially researched and developed a hollow seal ring which can solve the above disadvantages in combination with the above circumstances.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to solve the technical problem of sinking caused by negative pressure generated in the sealing ring after the existing totally-enclosed hollow sealing ring is extruded and compressed for a long time.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a hollow sealing ring with a breathing function comprises a sealing ring body, wherein an installation cavity is formed in one side of the sealing ring body and is communicated with an inner cavity of the sealing ring body; an air exchange mechanism which is conveyed in a one-way mode with the inner cavity is arranged in the mounting cavity.
In the hollow sealing ring with the breathing function, the exchange mechanism is a breathing valve.
In the hollow sealing ring with the breathing function, the breather valve and the side wall surface of the sealing ring body are in the same horizontal plane.
The hollow sealing ring with the respiration function is characterized in that the inner wall of the mounting cavity is sequentially provided with a mounting part and a gas circulation part from outside to inside in the circumferential direction, and the diameter of the mounting part is larger than that of the gas circulation part.
The mounting part is used for being fixedly mounted and matched with the breather valve.
Foretell cavity sealing washer with respiration, the first installation face of installation department is connected with the first stationary plane cooperation of breather valve, the second installation face of installation department is connected with the second stationary plane cooperation of breather valve.
In the hollow sealing ring with the breathing function, the gas circulation part forms a channel for gas to pass through between the inner cavity and the breathing valve.
The hollow sealing ring with the respiration function has the advantages that:
1. the hollow sealing ring with the respiration function of the utility model meets the requirement of enhancing the sealing function by air compression
Meanwhile, the problem of sinking caused by negative pressure generated due to internal air loss after long-term compression of the old sealing ring is solved, and the problems of weakening of sealing force and water leakage of the sealing ring caused by sinking of the sealing ring are avoided.
2. The utility model has the advantages that when the sealing ring is pressed, the sealing valve is closed,
the sealing ring realizes the sealing effect; when the sealing ring is released from pressure, the sealing valve is opened by the acting force of air pressure, at the moment, external air enters the inner cavity, and the sealing ring is restored to the original shape. Thereby avoiding the problem that the sealing ring is sunken.
Drawings
FIG. 1 is a schematic view of a totally-enclosed hollow seal ring structure introduced in the background art;
FIG. 2 is a schematic structural view of the sealing effect of a totally-enclosed hollow sealing ring introduced in the background art;
FIG. 3 is a schematic structural view of a totally enclosed hollow seal ring introduced in the background art showing a concave effect after being pressed;
FIG. 4 is a schematic structural view of the present invention;
FIG. 5 is a schematic exploded view of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic view of a breather valve closure seal arrangement of the present invention;
FIG. 7 is a schematic view of the structure of opening and air-intake of the breather valve of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The sealing ring is compressed for a long time, and then the sealing force is weakened and the sealing ring leaks. The structure of the sealing ring is improved so as to solve the problems that after long-term compression, negative pressure is generated in the sealing ring to cause depression, the sealing force is weakened, and the sealing ring leaks water.
Specifically, refer to fig. 4, 5, 6, and 7:
a hollow sealing ring with a breathing function comprises a sealing ring body 1, wherein an installation cavity 2 is formed in one side of the sealing ring body 1, and the installation cavity 2 is communicated with an inner cavity 3 of the sealing ring body 1; an air exchange mechanism which is unidirectionally conveyed with the inner cavity 3 is arranged in the mounting cavity 2.
The air exchange mechanism delivers the outside air to the inner chamber 3, and the air in the inner chamber 3 cannot be released to the outside.
In the hollow sealing ring with the breathing function, the exchange mechanism is the breather valve 4.
Utilize sealing washer body 1 to receive external extrusion deformation back and close breather valve 4 for the pressure of inner chamber 3 acts on the sealing washer, has increased sealed effect. After the extrusion to sealing washer body 1 is cancelled, breather valve 4 opens, sends external air to in the inner chamber 3.
In the hollow sealing ring with the breathing function, the breather valve 4 and the side wall surface of the sealing ring body 1 are in the same horizontal plane. The integral integrity of the sealing ring is ensured.
In the hollow sealing ring with the breathing function, the installation part 21 and the gas circulation part 22 are sequentially arranged on the inner wall of the installation cavity 2 from outside to inside in the circumferential direction, and the diameter of the installation part 21 is larger than that of the gas circulation part 22.
In the above hollow sealing ring with breathing function, the mounting portion 21 is used for being fixedly mounted and matched with the breather valve 4.
In the hollow seal ring with a breathing function, the first mounting surface 211 of the mounting portion 21 is connected with the first fixing surface 41 of the breathing valve 4 in a matching manner, and the second mounting surface 212 of the mounting portion 21 is connected with the second fixing surface 42 of the breathing valve 4 in a matching manner. Through the cooperation of two installation faces and two stationary planes to be connected, guaranteed the stability of installation promptly, also play limiting displacement, guaranteed the surface smoothness after sealing washer body 1 and breather valve 4 installation simultaneously.
In the hollow seal ring with a breathing function, the gas flow portion 22 forms a passage through which gas passes between the inner chamber 3 and the breather valve 4.
When the breather valve is used, the breather valve 4 is installed in the installation groove 2 of the sealing ring body 1, and is shown in figure 4.
The sealing ring is arranged in the mounting groove 5, the sealing pressing edge 6 is directly contacted with the top surface of the sealing ring body 1, when the sealing ring body 1 is extruded by the sealing pressing edge 6, the breather valve 4 is closed, and the sealing ring is deformed to realize sealing; the air enclosed in the inner cavity 3 generates a reaction force to act on the sealing ring along with the compression of the sealing ring body 1, so that the sealing force of the sealing ring is further improved, as shown in fig. 6.
After the sealing ring is squeezed and compressed by the sealing pressure edge 6 for a long time and the pressure is removed, the breather valve 4 is automatically opened under the action of air pressure, external air enters the inner cavity 3 of the sealing ring body 1 to supplement lost air, the internal and external pressure balance of the sealing ring is realized, and the sealing ring is prevented from sinking, as shown in fig. 7.
The present invention is described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments. Those skilled in the art can make various modifications or alterations to the present invention without departing from the technical idea of the present invention, and such modifications or alterations also fall within the protective scope of the present invention.
Claims (7)
1. The utility model provides a cavity sealing washer with respiration which characterized in that: the sealing ring comprises a sealing ring body (1), wherein an installation cavity (2) is formed in one side of the sealing ring body (1), and the installation cavity (2) is communicated with an inner cavity (3) of the sealing ring body (1); an air exchange mechanism which is conveyed in a one-way mode with the inner cavity (3) is arranged in the mounting cavity (2).
2. Hollow sealing ring with breathing action according to claim 1, characterized in that: the exchange mechanism is a breather valve (4).
3. Hollow sealing ring with breathing action according to claim 2, characterized in that: the breather valve (4) and the side wall surface of the sealing ring body (1) are on the same horizontal plane.
4. Hollow sealing ring with breathing action according to claim 2, characterized in that: the installation cavity (2) inner wall outside-in circumference is equipped with installation department (21), gas circulation portion (22) in proper order, installation department (21) diameter is greater than gas circulation portion (22) diameter.
5. Hollow sealing ring with respiration as claimed in claim 4, characterized in that: the mounting part (21) is used for being fixedly mounted and matched with the breather valve (4).
6. Hollow sealing ring with respiration as claimed in claim 5, characterized in that: the first installation face (211) of installation department (21) is connected with the cooperation of first stationary plane (41) of breather valve (4), the second installation face (212) of installation department (21) is connected with the cooperation of second stationary plane (42) of breather valve (4).
7. Hollow sealing ring with respiration as claimed in claim 4, characterized in that: the gas circulation part (22) forms a passage for gas to pass through between the inner cavity (3) and the breather valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220594457.XU CN216867485U (en) | 2022-03-18 | 2022-03-18 | Hollow sealing ring with respiration function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220594457.XU CN216867485U (en) | 2022-03-18 | 2022-03-18 | Hollow sealing ring with respiration function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216867485U true CN216867485U (en) | 2022-07-01 |
Family
ID=82122934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220594457.XU Active CN216867485U (en) | 2022-03-18 | 2022-03-18 | Hollow sealing ring with respiration function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216867485U (en) |
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2022
- 2022-03-18 CN CN202220594457.XU patent/CN216867485U/en active Active
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| GR01 | Patent grant |