阅读说明：本技术 一种组合动密封圈 (Combined dynamic seal ring ) 是由 苏力争 李智 刘浩亮 李博 王新亚 于 2019-09-28 设计创作，主要内容包括：本发明涉及一种组合动密封圈,包括第一密封圈和第二密封圈；第一密封圈包括第一金属件,第一金属件包括板状金属件和环状金属件,板状金属件中央设计有孔洞,环状金属件包括闭合环状金属件和开口环状金属件,闭合环状金属件环绕孔洞固定在板状金属件的一侧,开口环状金属件下端开口,且环绕闭合环状金属件固定在板状金属件的一侧；第二密封圈包括第二金属件,第二金属件是开槽环状结构,第二金属件的外壁设计有环形槽；当第一密封圈与第二密封圈组合时,第二金属件卡合在闭合环状金属件与开口环状金属件之间,形成导流槽。该组合动密封圈便于安装和拆卸,可反复使用。(The invention relates to a combined dynamic seal ring, which comprises a first seal ring and a second seal ring; the first sealing ring comprises a first metal piece, the first metal piece comprises a plate-shaped metal piece and an annular metal piece, a hole is formed in the center of the plate-shaped metal piece, the annular metal piece comprises a closed annular metal piece and an open annular metal piece, the closed annular metal piece is fixed on one side of the plate-shaped metal piece in a surrounding mode around the hole, the lower end of the open annular metal piece is open, and the closed annular metal piece is fixed on one side of the plate-shaped metal piece; the second sealing ring comprises a second metal piece, the second metal piece is of a slotted annular structure, and an annular groove is designed on the outer wall of the second metal piece; when the first sealing ring is combined with the second sealing ring, the second metal piece is clamped between the closed annular metal piece and the open annular metal piece to form a diversion trench. The combined movable sealing ring is convenient to mount and dismount and can be used repeatedly.)

1. A combined dynamic seal ring is characterized by comprising a first seal ring (1) and a second seal ring (2); the first sealing ring (1) comprises a first metal part (3), wherein the first metal part (3) comprises a plate-shaped metal part (4) and an annular metal part (5), a hole is formed in the center of the plate-shaped metal part (4), the annular metal part (5) comprises a closed annular metal part (6) and an open annular metal part (7), the closed annular metal part (6) is fixed to one side of the plate-shaped metal part (4) in a surrounding mode around the hole, the lower end of the open annular metal part (7) is open, the closed annular metal part (6) is fixed to one side of the plate-shaped metal part (4) in a surrounding mode, and the height of the closed annular metal part (6) is higher than that of; the second sealing ring (2) comprises a second metal piece (8), the second metal piece (8) is of an annular structure, an annular groove is formed in the outer wall of the second sealing ring, the outer annular area of the inner side of the annular groove is smaller than that of the outer side of the annular groove, and when the first sealing ring (1) and the second sealing ring (2) are combined, the second metal piece (8) is clamped between the closed annular metal piece (6) and the open annular metal piece (7) to form a flow guide groove.

2. A combined dynamic seal ring according to claim 1, characterised in that the first seal ring (1) further comprises a first rubber member (9), the shape of the first rubber member (9) fitting on the other side of the plate-like metal member (4).

3. A combined dynamic seal ring according to claim 1, characterised in that the second seal ring (2) further comprises a second rubber member (10), the second rubber member (10) being attached to both sides of the second metal member (8).

4. A combined dynamic seal ring according to claim 1, 2 or 3, characterised in that the corresponding positions of the first seal ring (1) and the second seal ring (2) are designed with screw holes, and bolts are passed through the screw holes of the corresponding positions of the first seal ring (1) and the second seal ring (2) to combine the first seal ring (1) with the second seal ring (2).

Technical Field

the invention belongs to the technical field of sealing, and particularly relates to a combined dynamic sealing ring.

background

Many electronic devices currently require operation in an open air environment, which makes the components of the electronic devices susceptible to external environments (e.g., temperature, humidity, rain, sunlight, etc.), resulting in shortened life. Particularly, rainwater is easy to infiltrate into the interface of the components, so that the components are damaged. However, many components are expensive or inconvenient to repair, requiring sealing protection at the interface of the components.

The existing sealing modes mainly include two types: firstly, sealing in a seam: all gaps are filled with sealing materials between the abutting surfaces of the parts so as to realize sealing. The sealing material can adopt a sealant, and can also adopt a rubber sealing material. Secondly, seam external sealing: and (3) covering sealant along the edge of the binding surface of the part, the periphery of the fastener, the structural gap and the like on one side of the water pressure so as to realize sealing.

However, the form of filling the sealant is not convenient for repeated disassembly and assembly, and the sealant needs to be refilled after disassembly and assembly. The rubber sealing form mainly realizes the sealing effect by contacting and extruding with the surface to be sealed to generate deformation, so that the contact and friction problems between the sealing element and the surface to be contacted become complicated, the sealing element is easy to bear force, and under the condition of repeated disassembly and assembly, the sealing material is abraded, and the waterproofness becomes poor; in addition, due to the inaccessibility and concealment of the contact interface, it is difficult to observe and measure itself, and to determine whether or not the contact interface is leaking.

Disclosure of Invention

Technical problem to be solved

In order to avoid poor sealing effect in the prior art, the invention provides a combined dynamic sealing ring.

Technical scheme

A combined dynamic seal ring is characterized by comprising a first seal ring and a second seal ring; the first sealing ring comprises a first metal piece, wherein the first metal piece comprises a plate-shaped metal piece and an annular metal piece, a hole is formed in the center of the plate-shaped metal piece, the annular metal piece comprises a closed annular metal piece and an open annular metal piece, the closed annular metal piece is fixed on one side of the plate-shaped metal piece in a surrounding mode around the hole, the lower end of the open annular metal piece is open, the closed annular metal piece is fixed on one side of the plate-shaped metal piece in a surrounding mode, and the closed annular metal piece is higher than the; the second sealing ring comprises a second metal piece, the second metal piece is of an annular structure, an annular groove is formed in the outer wall of the second sealing ring, the outer ring area of the inner side of the annular groove is smaller than that of the outer side of the annular groove, and when the first sealing ring and the second sealing ring are combined, the second metal piece is clamped between the closed annular metal piece and the open annular metal piece to form a flow guide groove.

The first sealing ring further comprises a first rubber piece, and the shape of the first rubber piece is attached to the other side of the plate-shaped metal piece.

The second sealing ring further comprises a second rubber piece, and the second rubber piece is attached to two sides of the second metal piece.

The first sealing ring and the second sealing ring are provided with screw holes at corresponding positions, and a bolt penetrates through the screw holes at the corresponding positions of the first sealing ring and the second sealing ring to combine the first sealing ring and the second sealing ring.

Advantageous effects

The combined dynamic sealing ring provided by the invention comprises a first sealing ring and a second sealing ring. During assembly, sealing is performed in a manner that the first sealing ring and the second sealing ring are combined. And a diversion trench is formed when the first sealing ring and the second sealing ring are combined. Therefore, water on the combined dynamic seal ring flows out along the diversion trench and is not easy to accumulate. When the dismounting, the dismounting is carried out through the mode of separating the first sealing ring and the second sealing ring, and the mounting and the dismounting are convenient. And, can not wear and tear combination movable seal ring at the dismouting in-process to make combination movable seal ring can use repeatedly.

Drawings

FIG. 1 is a schematic structural diagram of a combined dynamic seal ring provided by an embodiment of the present application during assembly;

fig. 2 is a schematic structural diagram of a combined dynamic seal ring provided in the embodiment of the present application when being disassembled and assembled;

FIG. 3 is a front view of the first seal ring;

FIG. 4 is a left side view of the first seal ring;

FIG. 5 is a front view of the second seal ring;

FIG. 6 is a right side view of the second seal ring;

FIG. 7 is a sectional view of the combined dynamic seal ring shown in FIG. 1 at A-A';

Detailed Description

The invention will now be further described with reference to the following examples and drawings:

The embodiment of the application provides a combination dynamic seal circle, includes: a first seal ring and a second seal ring; the first sealing ring comprises a first metal piece, the first metal piece comprises a plate-shaped metal piece and an annular metal piece, a hole matched with the shape of the annular metal piece is designed in the center of the plate-shaped metal piece, the annular metal piece comprises a closed annular metal piece and an open annular metal piece, the closed annular metal piece is fixed on one side of the plate-shaped metal piece in a surrounding mode, the lower end of the open annular metal piece is open, and the closed annular metal piece is fixed on one side of the plate-shaped metal piece in; the second sealing ring comprises a second metal piece, the second metal piece is of a slotted annular structure, the shape of the second metal piece is matched with that of the annular metal piece, and an annular groove is designed on the outer wall of the second metal piece; when the first sealing ring is combined with the second sealing ring, the second metal piece is clamped between the closed annular metal piece and the open annular metal piece to form a diversion trench.

In some embodiments, the first sealing ring further comprises a first rubber part, the shape of the first rubber part is matched with that of the plate-shaped metal part, and the first rubber part is attached to the other side of the plate-shaped metal part; the second sealing ring further comprises a second rubber part, the shape of the second rubber part is matched with that of the second metal part, and the second rubber part is attached to two sides of the second metal part.

in some embodiments, the first sealing ring and the second sealing ring are provided with screw holes at corresponding positions, and bolts pass through the screw holes at corresponding positions of the first sealing ring and the second sealing ring to combine the first sealing ring with the second sealing ring.

Referring to fig. 1 and fig. 2, fig. 1 shows a schematic structural diagram of the combined dynamic seal ring provided in the embodiment of the present application when assembled, and fig. 2 shows a schematic structural diagram of the combined dynamic seal ring provided in the embodiment of the present application when disassembled. As shown in fig. 1 and 2, the combined dynamic seal ring in the present embodiment may include a first seal ring 1 and a second seal ring 2.

Please refer to fig. 3, which shows a front view of the first sealing ring 1 provided in the embodiment of the present application. As shown in fig. 3, the first seal ring 1 in the present embodiment may include a first metal member 3, and the first metal member 3 includes a plate-shaped metal member 4 and an annular metal member 5.

in the present embodiment, the plate-shaped metal piece 4 may generally completely conform to the fitting surface of the component, and the shape thereof may include, but is not limited to, a rectangle, a square, a circle, an ellipse, a rounded rectangle, and the like. Among them, the shape of the plate-like metal piece 4 shown in fig. 3 is a rectangle. The shape of the annular metallic member 5 may also include, but is not limited to, rectangular, square, circular, oval, rounded rectangular, and the like. Among them, the shape of the annular metal member 5 shown in fig. 3 is a rounded rectangle.

In this embodiment, the plate-shaped metal member 4 may be designed with a hole in the center. Wherein the shape of the hole can match (be the same as or similar to) the shape of the annular metal piece 5. The annular metal piece 5 may comprise a closed annular metal piece 6 and an open annular metal piece 7. Wherein, the closed ring-shaped metal member 6 can be fixed on one side (front side) of the plate-shaped metal member 4 around the hole. It follows that the area of the holes is not greater than the area of the inner ring of the closed ring-shaped metal piece 6. Wherein, the shape of the hole and the closed ring-shaped metal member 6 shown in fig. 3 is the same, and the area of the hole is equal to the area of the inner ring of the closed ring-shaped metal member 6. The open ring-shaped metal member 7 may be open at the lower end and fixed to one side (front side) of the plate-shaped metal member 4 around the closed ring-shaped metal member 6. From this, it can be seen that the area of the inner ring of the open annular metal member 7 is larger than the area of the outer ring of the closed annular metal member 6.

In addition, in order to form a diversion trench when the first sealing ring 1 and the second sealing ring 2 are combined, the height of the closed annular metal member 6 is generally higher than that of the opened annular metal member 7.

In practice, the first metal part 3 may be an integrally formed metal part, that is, after the metal is melted into liquid, the liquid is directly cast into a mold matching with the shape of the first metal part 3, and the liquid is polymerized and solidified to form a product having the same shape as the inner cavity of the mold. Alternatively, the first metal material 3 may be obtained by first casting the plate-shaped metal material 4 and the annular metal material 5 in respective molds corresponding to the plate-shaped metal material 4 and the annular metal material 5, and then welding the annular metal material 5 to the plate-shaped metal material 4 by a welding technique. In the present embodiment, the casting method of the first metal fitting 3 is not limited.

In practice, a gap may be generated when the fitting surface of the component part is fitted to the fitting surface of the component part due to processing deformation, and here, in order to make the fitting surface of the component part and the first seal ring 1 more tightly fitted, a rubber sealing material may be provided at a contact portion of the first seal ring 1 and the fitting surface of the component part. Please refer to fig. 4, which shows a left side view of the first sealing ring 1 provided in the embodiment of the present application. As shown in fig. 4, the first seal ring 1 may further include a first rubber member 9. Normally, rubber may be cast on the rear side of the first metal piece 3, resulting in the integrally molded first seal ring 1. Wherein the shape of the first rubber member 9 matches (is the same as or similar to) the shape of the plate-like metal member 4. The first rubber part 9 is attached to the other side (rear side) of the plate-shaped metal part 4, so that two sides of the first rubber part 9 are respectively in close contact with the attachment surfaces of the first metal part 3 and the component, gaps between the attachment surfaces of the component and the first sealing ring 1 are eliminated, and rainwater is prevented from flowing into the contact position of the attachment surfaces of the component and the first sealing ring 1.

Please refer to fig. 5, which shows a front view of the second sealing ring 2 provided in the embodiment of the present application. As shown in fig. 5, the second seal ring 2 in this embodiment may include a second metal member 8. The second metal piece 8 may be a slotted ring structure. The shape of the second metal part 8 can be matched with (similar to) the shape of the annular metal part 5, and the difference is that the outer wall of the second metal part 8 is designed with an annular groove.

In this embodiment, when the first seal ring 1 and the second seal ring 2 are combined, the second metal fitting 8 can be engaged between the closed ring-shaped metal fitting 6 and the open ring-shaped metal fitting 7. From this, the area of the outer ring of the closed ring-shaped metal member 6 is not larger than the area of the inner ring of the second metal member 8, and the area of the outer ring of the second metal member 8 is not larger than the area of the inner ring of the open ring-shaped metal member 7.

In addition, in order to facilitate formation of the guide groove when the first seal ring 1 is combined with the second seal ring 2, the outer annular area of the front side of the second metal member 8 is generally not larger than the outer annular area of the rear side of the second metal member 8.

In practice, the second metal part 8 may also be an integrally formed metal part, or may also be formed by welding three ring-shaped metal parts having the same inner ring area and different outer ring areas. In the present embodiment, the casting method of the second metal material 8 is not limited.

Alternatively, a rubber sealing material may be provided at a contact portion between the second gasket 2 and the contact surfaces of the first gasket 1 and the component in order to make the contact surfaces of the second gasket 2 and the first gasket 1 and the component more closely contact each other. Referring to fig. 6, a right side view of the second sealing ring 2 provided in the embodiment of the present application is shown. As shown in fig. 6, the second seal ring 2 may further include a second rubber member 10. Typically, rubber may be cast on both sides of the second metal part 8, resulting in an integrally formed second seal ring 2. Wherein the shape of the second rubber member 10 is similar to the shape of the second metal member 8, and the difference is that the outer wall of the second metal member 8 is designed with an annular groove. The second rubber member 10 is attached to both sides of the second metal member 8. When the first sealing ring 1 and the second sealing ring 2 are combined, the second rubber part 10 on the front side of the second metal part 8 is in close contact with the plate-shaped metal part 4, so that a gap between the first sealing ring 1 and the second sealing ring 2 is eliminated, and rainwater is prevented from flowing into the contact position of the first sealing ring 1 and the second sealing ring 2. When the kneck to the spare part is sealed, the binding face in close contact with of the second rubber spare 10 of 8 rear sides of second metalwork and spare part has eliminated the gap between the binding face of spare part and the second sealing washer 2, prevents that the binding face of rainwater through the spare part from flowing into with the contact department of second sealing washer 2. Meanwhile, the first rubber part 9 of the first sealing ring 1 is in close contact with the joint surface of the component, so that a gap between the joint surface of the component and the first sealing ring 1 is eliminated, the joint surface of the component, the first sealing ring 1 and the second sealing ring 2 form a fully-closed cavity, the joint of the component is sealed in the fully-closed cavity, rainwater is prevented from permeating into the joint of the component, and a sealing protection effect is achieved for the joint of the component.

Referring to fig. 7, a structural cross-sectional view at a-a' of the combined dynamic seal ring shown in fig. 1 is shown. As shown in fig. 7, in the present embodiment, when the first sealing ring 1 and the second sealing ring 2 are combined, a diversion trench with an open lower end may be formed. Generally, rainwater can enter the diversion trench through the upper end or the left and right sides of the diversion trench and flow downwards under the action of gravity until flowing out of the opening at the lower end of the diversion trench. Thereby the water accumulation of the combined dynamic seal ring is not easy to happen.

In some optional implementations of the present embodiment, in order to firmly combine the first sealing ring 1 and the second sealing ring 2, a screw hole may be designed at a corresponding position of the first sealing ring 1 and the second sealing ring 2, so that a bolt may pass through the screw hole at the corresponding position of the first sealing ring 1 and the second sealing ring 2 to firmly combine the first sealing ring 1 and the second sealing ring 2.

in addition, in order to fix the first seal ring 1 to the joint surface of the component, a screw hole may be formed at a position corresponding to the joint surface of the component corresponding to the first seal ring 1, so that a bolt may be inserted through the screw hole at the position corresponding to the joint surface of the component corresponding to the first seal ring 1 to firmly fix the first seal ring 1 to the joint surface of the component. Similarly, in order to fix the second seal ring 2 to the joint surface of the component, a screw hole may be designed at a position corresponding to the joint surface of the second seal ring 2 and the component, so that the bolt may pass through the screw hole at the position corresponding to the joint surface of the second seal ring 2 and the component, and the second seal ring 2 is firmly fixed to the joint surface of the component.

in the embodiment of the present application, the positions and the number of the screw holes designed in the first seal ring 1 and the second seal ring 2 are not limited.