CN218494175U

CN218494175U - Check ring for piston

Info

Publication number: CN218494175U
Application number: CN202222749032.4U
Authority: CN
Inventors: 曼弗雷德; 夏利民; 徐亭; 陈顺; 董兴凯
Original assignee: Suzhou Puli Sealing Technology Co ltd
Current assignee: Suzhou Puli Sealing Technology Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-02-17
Anticipated expiration: 2032-10-19

Abstract

The utility model relates to a retaining ring for piston includes retaining ring and seal assembly from outer to interior in proper order, and seal assembly cup joints in the retaining ring intra-annular, and the retaining ring includes first retaining ring semi-ring and second retaining ring semi-ring, and first retaining ring semi-ring and second retaining ring semi-ring link together through grafting mechanism in the position of junction. The retainer ring of the utility model comprises a first retainer ring semi-ring and a second retainer ring semi-ring which can be connected together through a splicing mechanism, thereby facilitating disassembly, replacement and maintenance and reducing the use cost; in addition, the sealing assembly sequentially comprises a sealing ring and a buffer pad from outside to inside, and a plurality of bulges are arranged on the inner side surface of the buffer pad at equal intervals, so that the friction performance of the inner wall of the retainer ring is enhanced under the action of the buffer pad and the bulges.

Description

Check ring for piston

Technical Field

The utility model relates to a retaining ring technical field especially relates to a retaining ring for piston.

Background

The retainer ring is one of common parts of mechanical equipment and is divided into a hole retainer ring and a shaft retainer ring, wherein the hole retainer ring is arranged in a circular hole and used for fixing the axial movement of parts, and the shaft retainer ring is frequently used when a piston is sealed.

Through mass retrieval, the prior art is found to be CN213628372U, and discloses an elastic retainer ring and a disassembly hook for disassembling the retainer ring, wherein the elastic retainer ring comprises a retainer ring body, 2 free ends of the retainer ring body are respectively provided with a clamp hole, a hook lug is arranged on the retainer ring body, and the hook lug is fixed on the outer side or the inner side of the retainer ring body; the hook lug comprises a fixed end and a free end, and the free end comprises an inclined plane; the utility model discloses still relate to a dismantle pothook of dismantling this circlip, wholly be the L type, including handle and eave tile, the lower extreme of eave tile includes an inclined plane, and this inclined plane is inclined to the handle afterbody by the preceding side of eave tile lower extreme. The utility model discloses a circlip can not influence the retaining ring normal function, and the cooperation of dismantling pothook and jump ring pincers simultaneously uses the dismantlement that can accomplish circlip more smoothly, has promoted work efficiency by a wide margin.

To sum up, current retaining ring adopts the structure setting of integral type, and inconvenient dismantlement causes the hole to use the retaining ring fracture easily by frequent dismouting, and use cost is higher.

In view of the above-mentioned drawbacks, the present designer has made active research and innovation to create a retainer ring for a piston, which has industrial application value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a retaining ring for piston.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a retaining ring for piston, from outer to interior retaining ring and seal assembly of including in proper order, seal assembly cup joints in the retaining ring intra-annular, the retaining ring includes first retaining ring semi-ring and second retaining ring semi-ring, first retaining ring semi-ring and second retaining ring semi-ring link together through grafting mechanism in the position of junction, grafting mechanism includes bolt assembly, inserted block and slot, the inserted block is pegged graft in the slot, be provided with the perforation on the inserted block, the outside of slot is provided with the screw hole, bolt assembly includes bolt and nut, the screw hole of one side is passed in proper order to the one end of bolt, perforate and be connected with the nut behind the screw hole of opposite side.

As a further improvement, the position of the joint of the first retainer ring and the semi-ring is provided with an insertion block, and the position of the joint of the second retainer ring and the semi-ring is provided with a slot.

As a further improvement of the utility model, the insert block is connected with the first retainer ring semi-ring through the thread groove.

As a further improvement, the position of the first end junction of the first retainer ring semi-ring is provided with an insert block, the position of the second end junction of the first retainer ring semi-ring is provided with a slot, the position of the first end junction of the second retainer ring semi-ring is provided with a slot, and the position of the second end junction of the first retainer ring semi-ring is provided with an insert block.

As a further improvement of the utility model, the insert block is connected with the first retaining ring semi-ring or the second retaining ring semi-ring through the screw thread between the thread groove.

As a further improvement, the sealing component comprises a sealing ring and a buffer cushion in turn from outside to inside, the buffer cushion is glued on the inner side of the sealing ring, and the equidistance of the inner side surface of the buffer cushion is provided with a plurality of bulges.

As the utility model discloses a further improvement has seted up a plurality of oil filler point on the lateral wall of first retaining ring semi-ring or second retaining ring semi-ring, and the oil filler point is connected with the inside logical oil cavity of first retaining ring semi-ring or second retaining ring semi-ring.

As a further improvement, the oil through cavity comprises a horizontal oil through cavity and a vertical oil through cavity which are communicated with each other.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

the retainer ring of the utility model comprises a first retainer ring semi-ring and a second retainer ring semi-ring which can be connected together through a splicing mechanism, thereby facilitating disassembly, replacement and maintenance and reducing the use cost; in addition, the sealing assembly sequentially comprises a sealing ring and a buffer pad from outside to inside, and a plurality of bulges are arranged on the inner side surface of the buffer pad at equal intervals, so that the friction performance of the inner wall of the retainer ring is enhanced under the action of the buffer pad and the bulges.

The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the specification, the following detailed description will be given of preferred embodiments of the present invention in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required 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 view of a first main embodiment of the present invention;

FIG. 2 is a schematic structural view of the first sub-embodiment;

FIG. 3 is a schematic structural view of a second sub-embodiment;

fig. 4 is a schematic structural view of a second main embodiment of the present invention;

FIG. 5 is a schematic structural view of a third sub-embodiment;

FIG. 6 is a schematic structural view of a fourth sub-embodiment;

FIG. 7 is a schematic structural view of the bolt assembly of FIG. 1;

fig. 8 is a partial cross-sectional view of the side of fig. 1.

Wherein the meanings of each reference numeral in the figures are as follows.

1 retainer ring 2 seal assembly

3 junction 4 bulge

5 sealing ring 6 buffer

7 threaded hole 8 bolt assembly

9 first retainer ring semi-ring 10 second retainer ring semi-ring

11 inserting block and 12 inserting grooves

13 perforation 14 thread groove

15 bolt and 16 nut

17 oil filler hole 18 transverse through oil cavity

19 vertical oil through cavity

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In order to make the technical solution of the present invention better understood, the technical solution 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 some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in figures 1 to 8 of the drawings,

as shown in fig. 1, the first main embodiment of the present invention: the utility model provides a retaining ring for piston, from outer to interior include in proper order and keep off ring 1 and seal assembly 2, seal assembly 2 cup joints in keeping off ring 1, keep off ring 1 and include first retaining ring semi-ring 9 and second retaining ring semi-ring 10, first retaining ring semi-ring 9 and second retaining ring semi-ring 10 link together through grafting mechanism in the position of junction 3, grafting mechanism includes bolt assembly 8, inserted block 11 and slot 12, inserted block 11 is pegged graft in slot 12, be provided with perforation 13 on the inserted block 11, the outside of slot 12 is provided with screw hole 7, bolt assembly 8 includes bolt 15 and nut 16, the one end of bolt 15 passes screw hole 7 of one side in proper order, behind perforation 13 and the screw hole 7 of opposite side and be connected with nut 16. Sealing assembly 2 is outer to interior sealing ring 5 and the buffer pad 6 of including in proper order, and 6 gluing of buffer pad are in the inboard of sealing ring 5, and the inboard surface equidistance of buffer pad 6 is provided with a plurality of arch 4. A plurality of oil injection holes 17 are formed in the outer side wall of the first retaining ring semi-ring 9 or the second retaining ring semi-ring 10, and the oil injection holes 17 are connected with an oil through cavity inside the first retaining ring semi-ring 9 or the second retaining ring semi-ring 10. The oil through cavity comprises a transverse oil through cavity 18 and a vertical oil through cavity 19 which are communicated with each other. Wherein the threaded hole 7 is arranged at a position close to the junction 3 of the second retainer half ring 10.

As in fig. 2, on the basis of fig. 1, based on the first sub-embodiment of the first main embodiment: the position of the joint 3 of the first retainer ring half ring 9 is provided with an insertion block 11, and the position of the joint 3 of the second retainer ring half ring 10 is provided with a slot 12.

As in fig. 3, on the basis of fig. 1 and 2, based on the first sub-embodiment of the first main embodiment: the insert 11 is screwed with the first retainer half ring 9 through the screw groove 14.

As shown in fig. 4, the second main embodiment of the present invention: the utility model provides a retaining ring for piston, from outer to interior include in proper order and keep off ring 1 and seal assembly 2, seal assembly 2 cup joints in keeping off ring 1, keep off ring 1 and include first retaining ring semi-ring 9 and second retaining ring semi-ring 10, first retaining ring semi-ring 9 and second retaining ring semi-ring 10 link together through grafting mechanism in the position of junction 3, grafting mechanism includes bolt assembly 8, inserted block 11 and slot 12, inserted block 11 is pegged graft in slot 12, be provided with perforation 13 on the inserted block 11, the outside of slot 12 is provided with screw hole 7, bolt assembly 8 includes bolt 15 and nut 16, the one end of bolt 15 passes screw hole 7 of one side in proper order, behind perforation 13 and the screw hole 7 of opposite side and be connected with nut 16. Sealing assembly 2 is outer to interior sealing ring 5 and the buffer pad 6 of including in proper order, and 6 gluing of buffer pad are in the inboard of sealing ring 5, and the inboard surface equidistance of buffer pad 6 is provided with a plurality of arch 4. A plurality of oil injection holes 17 are formed in the outer side wall of the first retainer ring semi-ring 9 or the second retainer ring semi-ring 10, and the oil injection holes 17 are connected with an oil through cavity in the first retainer ring semi-ring 9 or the second retainer ring semi-ring 10. The oil through cavity comprises a transverse oil through cavity 18 and a vertical oil through cavity 19 which are communicated with each other. The threaded hole 7 is located at the second end of the first retaining ring half ring 9 and near the joint 3, and the first end of the second retaining ring half ring 10 and near the joint 3.

As in fig. 5, on the basis of fig. 4, based on the third sub-embodiment of the second main embodiment: an inserting block 11 is arranged at the position of the first end connecting part 3 of the first retainer ring half ring 9, an inserting groove 12 is arranged at the position of the second end connecting part 3 of the first retainer ring half ring 9, an inserting groove 12 is arranged at the position of the first end connecting part 3 of the second retainer ring half ring 10, and an inserting block 11 is arranged at the position of the second end connecting part 3 of the first retainer ring half ring 9.

As in fig. 6, on the basis of fig. 4 and 5, based on a fourth sub-embodiment of the second main embodiment: the insert 11 is connected with the first retainer half ring 9 or the second retainer half ring 10 through a thread groove 14.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly referring to the number of technical features being grined. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected: either mechanically or electrically: the terms may be directly connected or indirectly connected through an intermediate member, or may be a communication between two elements.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The retainer ring for the piston comprises a retainer ring (1) and a sealing assembly (2) in sequence from outside to inside, wherein the sealing assembly (2) is sleeved in the retainer ring (1), and is characterized in that the retainer ring (1) comprises a first retainer ring half ring (9) and a second retainer ring half ring (10), the first retainer ring half ring (9) and the second retainer ring half ring (10) are connected together at the position of a joint (3) through an inserting mechanism, the inserting mechanism comprises a bolt assembly (8), an inserting block (11) and an inserting groove (12), the inserting block (11) is inserted into the inserting groove (12), a through hole (13) is formed in the inserting block (11), a threaded hole (7) is formed in the outer side of the inserting groove (12), the bolt assembly (8) comprises a bolt (15) and a nut (16), and one end of the bolt (15) sequentially penetrates through the threaded hole (7) in one side, the through hole (13) and the threaded hole (7) in the other side and is connected with the nut (16).

2. Retainer ring for a piston according to claim 1, characterized in that the first retainer ring half ring (9) is provided with an insert (11) at the location of the connection (3) and the second retainer ring half ring (10) is provided with a slot (12) at the location of the connection (3).

3. Retainer ring for a piston according to claim 2, characterized in that the insert piece (11) is screwed together with the first retainer ring half (9) by means of a threaded groove (14).

4. The retainer ring for the piston as claimed in claim 1, characterized in that the first end connection (3) of the first retainer ring half ring (9) is provided with an insert (11), the second end connection (3) of the first retainer ring half ring (9) is provided with an insert groove (12), the first end connection (3) of the second retainer ring half ring (10) is provided with an insert groove (12), and the second end connection (3) of the first retainer ring half ring (9) is provided with an insert (11).

5. Retainer ring for a piston according to claim 4, characterized in that the insert piece (11) is screwed together by means of a threaded groove (14) with the first retainer ring half (9) or the second retainer ring half (10).

6. Retainer ring for a piston according to claim 1, characterized in that the sealing assembly (2) comprises a sealing ring (5) and a cushion pad (6) from outside to inside, the cushion pad (6) is glued on the inner side of the sealing ring (5), and the inner surface of the cushion pad (6) is provided with a plurality of protrusions (4) at equal intervals.

7. The retainer ring for the piston as claimed in claim 1, characterized in that a plurality of oil injection holes (17) are formed in the outer side wall of the first retainer ring half ring (9) or the second retainer ring half ring (10), and the oil injection holes (17) are connected with an oil through cavity inside the first retainer ring half ring (9) or the second retainer ring half ring (10).

8. A retainer ring for a piston as claimed in claim 7, wherein said oil communication chamber comprises a lateral oil communication chamber (18) and a vertical oil communication chamber (19) communicating with each other.