CN219673274U

CN219673274U - Sealing structure

Info

Publication number: CN219673274U
Application number: CN202320784820.9U
Authority: CN
Inventors: 黄华秋; 吴敏; 吴小光
Original assignee: Nanchang Sanrui Intelligent Technology Co Ltd
Current assignee: Nanchang Sanrui Intelligent Technology Co Ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-09-12
Anticipated expiration: 2033-04-11

Abstract

The utility model discloses a sealing structure, which relates to the technical field of sealing and comprises a fastening assembly and a sealing ring arranged in the fastening assembly; the fastening assembly comprises a first fastening piece and a second fastening piece rotationally connected with the first fastening piece, the first fastening piece comprises a straight rod part and a head part, a first limiting part is arranged at the joint of the straight rod part and the head part, the sealing ring is arranged in the first limiting part, a second limiting part is arranged on the second fastening piece, the first limiting part and the second limiting part are both V-shaped chamfer grooves, the first limiting part and the second limiting part enclose a triangular limiting cavity, the sealing ring is arranged in the limiting cavity, the ring diameter of the sealing ring is larger than the diameter of the limiting cavity, so that the sealing ring is in interference fit with the limiting cavity, and the sealing ring abuts against the side edge of the limiting cavity. According to the utility model, the first limiting part and the second limiting part are respectively arranged on the first fastening piece and the second fastening piece, so that the sealing ring is fixed in the limiting cavity formed by the first limiting part and the second limiting part, and the sealing ring does not bear high-strength deformation.

Description

Sealing structure

Technical Field

The utility model relates to the technical field of sealing, in particular to a sealing structure.

Background

Bolts are cylindrical threaded fasteners, also commonly referred to as screws, which can be used directly in mechanical devices or fitted with nuts. In the process of using the bolts for connection, a sealing ring is often used for assisting in achieving a sealing effect between the bolts and the mechanical equipment or the nuts.

At present, when using the sealing washer, locate the sealing washer snare on the threaded rod, twist the bolt and utilize the bolt head through the screw thread force with the sealing washer is pressed on mechanical equipment or nut surface, but because the screw thread force is too big for the sealing washer is in high strength deformation state for a long time, and sealing washer structure probably receives destruction, leads to sealing performance to descend, exists the not hard up hidden danger of bolt even.

Disclosure of Invention

Based on the above, the utility model aims to provide a sealing structure, which aims to solve the problem that the sealing performance is reduced because the sealing ring is in a high-strength deformation state for a long time due to overlarge screw force for pressing the sealing ring, so that the sealing structure is possibly damaged.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme: a sealing structure, comprising a fastening component and a sealing ring arranged in the fastening component;

the fastening assembly comprises a first fastening piece and a second fastening piece rotationally connected with the first fastening piece, the first fastening piece comprises a straight rod part and a head part, a first limiting part is arranged at the joint of the straight rod part and the head part, the sealing ring is arranged in the first limiting part, a second limiting part is arranged on the second fastening piece, the first limiting part and the second limiting part are both V-shaped chamfer grooves, the first limiting part and the second limiting part enclose into a triangular limiting cavity, the sealing ring is arranged in the limiting cavity, the ring diameter of the sealing ring is larger than the diameter of the limiting cavity, so that the sealing ring is in interference fit with the limiting cavity, and the sealing ring abuts against the side edge of the limiting cavity.

In summary, according to the sealing structure provided by the utility model, the first limiting part and the second limiting part are respectively arranged on the first fastening piece and the second fastening piece, so that the sealing ring is fixed in the limiting cavity enclosed by the first limiting part and the second limiting part, and the sealing ring does not bear high-strength deformation. Specifically, seal structure includes fastening assembly and locates the sealing washer between the fastening assembly, fastening assembly include first fastener and with the second fastener that first fastener rotated to be connected, first fastener include straight-bar portion and head, straight-bar portion with the junction of head is equipped with first spacing portion, the sealing washer is located in the first spacing portion, and the second fastener terminal surface is equipped with the spacing portion of second, and when straight-bar portion rotated into the second fastener, first spacing portion and the spacing portion of second enclose jointly and become a spacing chamber, and the sealing washer is fixed at spacing intracavity this moment, and in order to guarantee the leakproofness between first fastener and the second fastener, the circle footpath of sealing washer is greater than the diameter in spacing chamber to make sealing washer and each terminal surface in spacing intracavity in close contact, and then reach sealing washer and spacing chamber interference fit's purpose.

Further, the first limiting part and the second limiting part are symmetrically arranged on the first fastening piece and the second fastening piece respectively.

Further, the first limiting portion and the second limiting portion are grooves formed in the fastening assembly.

Further, the included angle in the groove is 60 degrees, and the included angle between the groove and the horizontal direction is 30 degrees and 90 degrees.

Further, one side of the groove, which is provided with 60 degrees and 90 degrees, is arranged on the surface of the straight rod part.

Further, the limiting cavity is a regular triangle space.

Further, the diameter of the sealing ring is larger than the diameter of the inscribed circle of the limiting cavity.

Further, the circumference surface of the straight rod part is provided with external threads, and the second fastening piece is internally provided with internal threads.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an exploded view of a seal structure in accordance with one embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the seal structure of FIG. 1;

fig. 3 is a view of the seal structure of fig. 1.

Description of the drawings element symbols:

the device comprises a first fastener 100, a straight rod 110, a head 120, a first limiting part 130, a second fastener 200, a second limiting part 210 and a sealing ring 300.

Detailed Description

In order to make the objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and the like are used herein for descriptive purposes only and not to indicate or imply that the apparatus 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 utility model.

In the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, a sealing structure according to an embodiment of the present utility model is shown, the sealing structure includes a fastening assembly and a sealing ring 300 disposed in the fastening assembly, wherein:

the fastening assembly includes a first fastener 100 and a second fastener 200 rotatably coupled to the first fastener 100, the first fastener 100 including a straight shaft 110 and a head 120. In order to fix the first fastening member 100 and the second fastening member 200, the circumferential surface of the straight rod 110 is provided with external threads, the second fastening member 200 is provided with a hole for the first fastening member 100 to pass through, the inside of the hole is provided with internal threads, and the first fastening member 100 and the second fastening member 200 are connected through threads.

Further, in order to ensure tightness between the first fastening member 100 and the second fastening member 200 and that the sealing ring 300 is not deformed in high strength by a screw force, the first and second fastening members 100 and 200 are provided with a first and second stopper 130 and 210, respectively. When the straight rod 110 is screwed into the second fastening member 200, the first limiting portion 130 and the second limiting portion 210 are respectively disposed on the first fastening member 100 and the second fastening member 200, and the first limiting portion 130 and the second limiting portion 210 enclose a limiting cavity, and the sealing ring 300 sleeved on the straight rod 110 is disposed in the limiting cavity.

Furthermore, the first limiting portion 130 and the second limiting portion 210 are grooves formed in the fastening assembly, the included angle in the grooves is 60 °, the grooves form included angles of 30 ° and 90 ° with the horizontal direction, and one side of the grooves with 60 ° and 90 ° is disposed on the surface of the straight rod portion 110. When the first fastener 100 and the second fastener 200 are screwed together, the first limiting portion 130 and the second limiting portion 210 form a regular triangle limiting cavity. In order to ensure the tightness between the first fastening member 100 and the second fastening member 200, the diameter of the sealing ring 300 is slightly larger than the diameter of the regular triangle inscribed circle, so that the sealing ring 300 deforms in the limiting cavity, and each end surface of the sealing ring 300 and the limiting cavity are in close contact, and the purpose of interference fit between the sealing ring 300 and the limiting cavity is achieved.

In summary, according to the sealing structure provided by the utility model, the first limiting part and the second limiting part are respectively arranged on the first fastening piece and the second fastening piece, so that the sealing ring is fixed in the limiting cavity enclosed by the first limiting part and the second limiting part, and the sealing ring does not bear high-strength deformation. Specifically, seal structure includes fastening assembly and locates the sealing washer between the fastening assembly, fastening assembly include first fastener and with the second fastener that first fastener rotated to be connected, first fastener include straight-bar portion and head, straight-bar portion with the junction of head is equipped with first spacing portion, the sealing washer is located in the first spacing portion, and the second fastener terminal surface is equipped with the spacing portion of second, and when straight-bar portion rotated into the second fastener, first spacing portion and the spacing portion of second enclose jointly and become a spacing chamber, and the sealing washer is fixed at spacing intracavity this moment, and in order to guarantee the leakproofness between first fastener and the second fastener, the circle footpath of sealing washer is greater than the diameter in spacing chamber to make sealing washer and each terminal surface in spacing intracavity in close contact, and then reach sealing washer and spacing chamber interference fit's purpose. The sealing ring is prevented from being pressed by the bolts, so that the sealing ring is in a high-strength deformation state for a long time, and the service life of the sealing ring is prolonged by the interference fit mode.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing examples illustrate only a few embodiments of the utility model, and are described in detail, but are not to be construed as limiting the scope of the utility model. It should be noted that it is possible for those skilled in the art to make several variations and modifications without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A sealing structure is characterized by comprising a fastening assembly and a sealing ring arranged in the fastening assembly;

2. The sealing structure according to claim 1, wherein the first limiting portion and the second limiting portion are symmetrically disposed on the first fastener and the second fastener, respectively, when the first fastener is rotationally connected with the second fastener.

3. The sealing structure of claim 2, wherein the first and second limiting portions are grooves provided on the fastening assembly.

4. A seal according to claim 3, wherein the groove is at an angle of 60 ° and the groove is at an angle of 30 ° and 90 ° to the horizontal.

5. The seal of claim 4, wherein the side of the groove having 60 ° and 90 ° is disposed on the surface of the straight bar.

6. The seal of claim 1, wherein the spacing cavity is a regular triangle space.

7. The seal structure according to claim 1 or 6, wherein a ring diameter of the seal ring is larger than a diameter of an inscribed circle of the limiting chamber.

8. The seal structure of claim 1, wherein the straight rod portion has an external thread on a circumferential surface thereof and the second fastener has an internal thread therein.