CN218913724U

CN218913724U - Embedded end sealing structure

Info

Publication number: CN218913724U
Application number: CN202223570441.4U
Authority: CN
Inventors: 项南火; 姜金万; 袁书泉; 魏万明; 陈斌
Original assignee: Zhejiang Sanwei Datong Precision Forging Co ltd
Current assignee: Zhejiang Sanwei Datong Precision Forging Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-25
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to an embedded end sealing structure. The sealing structure solves the technical problem that an existing sealing structure is poor in sealing performance. The embedded end seal structure includes: one end of the connecting cylinder is provided with an opening, and the inner wall of one end of the connecting cylinder, which is close to the opening, is provided with an annular step; the sealing cover comprises a U-shaped embedded part which is embedded into the opening and the opening of which faces the outer side of the opening, and annular sealing parts which are abutted against the inner wall of the connecting cylinder and one ends of which are abutted against the annular steps are respectively arranged at two ends of the U-shaped embedded part; the fixing assembly comprises at least two grid strips which are radially arranged and circumferentially distributed on the inner wall of the connecting cylinder, screw holes which are arranged between the grid strips and are axial, and outer studs which are arranged at one end of the U-shaped embedded part close to the connecting cylinder and are correspondingly matched with the screw holes. This embedded tip seal structure avoids sealed lid to receive and leads to sealed lid and connecting cylinder to be connected the pine problem of taking off after the collision, promotes built-in fixed subassembly structural strength simultaneously, promotes the sealing performance of sealed lid moreover.

Description

Embedded end sealing structure

Technical Field

The utility model belongs to the field of metal forgings, and relates to an embedded end sealing structure.

Background

Existing mechanical structures such as motors, pumps, etc. have high internal sealing requirements. For example, chinese patent literature discloses a sealing structure [201821921564.9] of a motor housing and an end cover, comprising an end cover and a housing, wherein the end cover is provided with a first contact surface contacting with the housing, a shoulder is arranged above the first contact surface, a groove is arranged on the shoulder, the groove is circumferentially arranged, and the bottom of the groove and the first contact surface are on the same horizontal plane; the center of the end cover is provided with a round groove, and the bottom of the round groove is provided with an annular groove; the groove is embedded to be equipped with annular first sealing washer, and the annular second sealing washer of embedded being equipped with of ring channel, first sealing washer, second sealing washer (132) cooperate with recess and ring channel respectively. However, the existing sealing end covers are connected by exposed end parts, so that the sealing effect is poor, and the problems of oil seepage and the like occur in the long-term use process or after external impact.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present utility model is to provide an embedded end seal structure.

The aim of the utility model can be achieved by the following technical scheme:

the embedded end seal structure includes:

one end of the connecting cylinder is provided with an opening, and the inner wall of one end of the connecting cylinder, which is close to the opening, is provided with an annular step;

the sealing cover comprises a U-shaped embedded part which is embedded into the opening and the opening of which faces the outer side of the opening, and annular sealing parts which are abutted against the inner wall of the connecting cylinder and one ends of which are abutted against the annular steps are respectively arranged at two ends of the U-shaped embedded part;

the fixing assembly comprises at least two grid strips which are radially arranged and circumferentially distributed on the inner wall of the connecting cylinder, screw holes which are arranged between the grid strips and are axial, and outer studs which are arranged at one end of the U-shaped embedded part close to the connecting cylinder and are correspondingly matched with the screw holes.

Further, a sealing ring is arranged between the annular sealing part and the annular step.

Further, the edge of the outer wall of one end of the annular sealing part, which is close to the annular step, is provided with an annular cambered surface which is attached to the sealing ring.

Further, the outer wall of one end of the annular sealing part far away from the annular cambered surface is provided with a clearance with the connecting cylinder to form a yielding groove.

Further, sealant is poured into the abdication groove.

Further, an embedded groove communicated with the abdication groove is formed in the inner wall of the connecting cylinder and the outer wall of the annular sealing part.

Further, one end surface of the sealing cover, which is far away from the connecting cylinder, does not protrude out of the opening of the connecting cylinder.

Further, the annular sealing part is L-shaped, and an opening formed by the annular sealing part and the U-shaped embedded part faces the inner side of the connecting cylinder.

Compared with the prior art, the embedded end sealing structure is embedded into the connecting cylinder in the structure of the sealing cover, the connection between the embedded end sealing structure and the connecting cylinder is more compact, the problem that the sealing cover is connected with the connecting cylinder to loose after collision is avoided, the grid strips are arranged on the connecting cylinder to form a connecting pivot, the structural strength of the built-in fixed assembly is improved, and the sealing performance of the sealing cover is improved by adopting a sealing ring and sealant filling mode.

Drawings

Fig. 1 is a schematic structural diagram of an embedded end seal structure according to the present utility model.

Fig. 2 is an enlarged schematic view of a region a of the embedded end seal structure of fig. 1.

Fig. 3 is a schematic view of a connecting cylinder of the embedded end seal structure of fig. 1.

In the figure, 10, a connecting cylinder; 11. an opening; 12. an annular step; 20. sealing cover; 21. a U-shaped embedded part; 22. an annular closure; 23. an annular cambered surface; 24. a relief groove; 30. a fixing assembly; 31. grid strips; 32. a screw hole; 33. an outer stud; 40. a seal ring; 50. sealing glue; 51. and (5) embedding grooves.

Detailed Description

Example 1

Please refer to fig. 1 to 3, which are schematic structural diagrams of an embedded end sealing structure according to the present utility model. The embedded end sealing structure comprises a connecting cylinder 10, a sealing cover 20 connected to the end part of the connecting cylinder 10, a fixing component 30 arranged between the connecting cylinder 10 and the sealing cover 20, and a sealing component arranged between the connecting cylinder 10 and the sealing cover 20, and it is conceivable that the embedded end sealing structure also comprises other functional components and specific structures, such as an electrical connecting component, an installation structure and the like, which are all known technologies of those skilled in the art, so that the details are not described herein.

The connecting cylinder 10 is a cylindrical housing, which is not limited to an external housing such as a motor, an oil path pipe, etc., and one end of the connecting cylinder 10 is provided with an opening 11 to facilitate the installation of the internal components of the connecting cylinder 10. An annular step 12 is arranged on the inner wall of one end of the connecting cylinder 10 close to the opening 11, and the inner diameter of the outer wall of the connecting cylinder 10 at the end of the opening 11 is in an inner narrow and outer wide state.

Specifically, the sealing cover 20 comprises a U-shaped embedded part 21 embedded in the opening 11 and facing the outside of the opening 11, one end surface of the sealing cover 20 far away from the connecting cylinder 10 does not protrude out of the opening 11 of the connecting cylinder 10, the sealing cover 20 is embedded in the connecting cylinder 10, the connection between the sealing cover 20 and the connecting cylinder 10 is more compact, and the problem that the sealing cover 20 is connected with the connecting cylinder 10 and loosened after the sealing cover 20 is collided is avoided.

The two ends of the U-shaped embedded part 21 are respectively provided with an annular sealing part 22 which is abutted against the inner wall of the connecting cylinder 10 and one end of which is abutted against the annular step 12, the annular sealing part 22 is attached to the inner wall of the open end 11 of the connecting cylinder 10, and the annular step 12 limits the axial inward embedded distance of the sealing cover 20.

The fixing assembly 30 comprises at least two grid strips 31 which are radially arranged and circumferentially distributed on the inner wall of the connecting cylinder 10, a plurality of grid strips 31 are converged at the central shaft position of the connecting cylinder 10 to form a connecting pivot, two sides of the grid strips 31 are kept communicated, axial screw holes 32 are formed in the connecting pivot between the grid strips 31, the screw holes 32 are through holes or blind holes, and an outer stud 33 which is correspondingly matched with the screw holes 32 is arranged at one end of the U-shaped embedded part 21, which is close to the connecting cylinder 10. When the sealing cover 20 is embedded into the connecting cylinder 10, the sealing cover 20 is fixedly connected through the threaded connection cooperation of the outer stud 33 and the screw hole 32, and it is conceivable that, as the sealing cover 20 is completely embedded into the connecting cylinder 10, a hexagonal positioning groove for embedding a hexagonal wrench or a rotating groove for embedding a straight screwdriver or a cross screwdriver is formed in the surface of one end of the U-shaped embedded part 21, which is far away from the connecting cylinder 10, so that a tool can be used to rotate the sealing cover 20, and the outer stud 33 can be screwed into the screw hole 32 to realize the installation. It is conceivable that the open end 11 has a circular cross-section in its inner contour for the annular closure 22 to be inserted with a space for rotation.

A sealing ring 40 is arranged between the annular sealing part 22 and the annular step 12, the sealing ring 40 is arranged at the corner position of the annular step 12, and when the sealing cover 20 is embedded and installed, the sealing ring 40 is extruded by the annular sealing part 22 to realize elastic sealing. More optimally, the edge of the outer wall of one end of the annular sealing part 22, which is close to the annular step 12, is provided with an annular cambered surface 23 which is attached to the sealing ring 40, the attachment property of the sealing ring 40 is improved through the annular cambered surface 23, the sliding deflection of the sealing ring 40 is limited, and the sealing effect is further improved.

The outer wall of one end of the annular sealing part 22 far away from the annular cambered surface 23 is provided with a clearance to form a yielding groove 24 with the connecting cylinder 10, the yielding groove 24 is filled with sealant 50, the outer side of the annular sealing part 22 is secondarily sealed by the filled sealant 50, and an end connection reinforcing effect is formed.

The inner wall of the connecting cylinder 10 and the outer wall of the annular sealing part 22 are provided with a plurality of grooves 24 communicated with each other, and the inner embedding grooves 51 are used for filling the sealant 50 to form an inner embedding structure of the integral sealant 50, so that the connection strength and sealing effect of the open end 11 are enhanced

In addition, in the present embodiment, the annular sealing portion 22 is L-shaped, and the opening formed by the annular sealing portion 22 and the U-shaped embedded portion 21 faces the inside of the connecting tube 10, and the structural design makes the joint of the sealing cover 20 and the connecting tube 10 far away from the end, so as to reduce the compression degree of the joint.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. An embedded end seal structure, characterized in that the embedded end seal structure comprises:

2. The embedded end seal structure of claim 1, wherein a seal ring is provided between the annular closure and the annular step.

3. The embedded end sealing structure according to claim 2, wherein an annular cambered surface which is fit with the sealing ring is arranged at the edge of the outer wall of one end of the annular sealing part, which is close to the annular step.

4. The embedded end sealing structure according to claim 3, wherein an outer wall of one end of the annular sealing part far away from the annular cambered surface is provided with a clearance with the connecting cylinder to form a yielding groove.

5. The embedded end seal structure of claim 4, wherein the relief groove is filled with a sealant.

6. The embedded end sealing structure according to claim 4, wherein the inner wall of the connecting cylinder and the outer wall of the annular sealing part are provided with embedded grooves communicated with the abdication grooves.

7. The embedded end seal structure according to claim 1, wherein an end surface of the seal cover remote from the connecting cylinder does not protrude from an opening of the connecting cylinder.

8. The embedded end seal structure according to claim 1, wherein the annular closing portion is L-shaped and an opening formed by the annular closing portion and the U-shaped embedded portion is directed toward the inside of the connecting cylinder.