阅读说明：本技术 一种防渗防振动松脱的管路连接结构 (Pipeline connection structure that prevention of seepage vibration pine takes off ) 是由 张宇飞 薛阔 于 2021-09-30 设计创作，主要内容包括：本发明公开了一种防渗防振动松脱的管路连接结构,包括固定接头、活动接头、活动螺母、紧固螺母、内垫圈、外垫圈。活动接头置于活动螺母内,活动接头外加工有左旋螺纹,紧固螺母为左旋螺纹,设置于活动接头上和活动螺母右侧。活动螺母和固定接头相连接且均为右旋螺纹,通过预先施加的预紧力,使活动螺母和紧固螺母之间形成一个摩擦力矩,形成一个互锁结构,达到防振动松脱的目的。在固定接头和活动接头之间有内外两个垫圈。内垫圈设置在固定接头和活动接头内径的接触端面,外垫圈设置在固定接头和活动接头外径的接触端面。内垫圈形成第一处防渗漏结构,外垫圈形成第二处防渗漏结构,防止外部冷凝水等渗入。(The invention discloses a pipeline connecting structure capable of preventing seepage and vibration loosening. The movable joint is arranged in the movable nut, the movable joint is externally provided with left-handed threads, and the fastening nut is left-handed threads and is arranged on the movable joint and on the right side of the movable nut. The movable nut and the fixed joint are connected and are right-handed threads, and through pre-applied pretightening force, a friction torque is formed between the movable nut and the fastening nut to form an interlocking structure, so that the aim of preventing vibration and loosening is fulfilled. An inner washer and an outer washer are arranged between the fixed joint and the movable joint. The inner gasket is arranged on the contact end surface of the inner diameters of the fixed joint and the movable joint, and the outer gasket is arranged on the contact end surface of the outer diameters of the fixed joint and the movable joint. The inner gasket forms a first anti-seepage structure, and the outer gasket forms a second anti-seepage structure to prevent external condensate water and the like from permeating.)

1. The utility model provides a pipeline connection structure that prevention of seepage vibration pine takes off which characterized in that: comprises a fixed joint, a movable nut, a fastening nut, an inner washer and an outer washer; the fixed joint is the tail end of a section of pipeline, the movable joint is arranged in the movable nut, the movable nut is connected with the fixed joint, and the fastening nut is screwed on the movable joint and is arranged on the right side of the movable nut; the inner gasket is arranged on the contact end surface of the inner diameters of the fixed joint and the movable joint, and the outer gasket is arranged on the contact end surface of the outer diameters of the fixed joint and the movable joint.

2. The anti-seepage anti-vibration loosening pipeline connecting structure according to claim 1, wherein: the fixed joint is externally provided with a right-handed thread.

3. The anti-seepage anti-vibration loosening pipeline connecting structure according to claim 1, wherein: the movable joint is externally provided with left-handed threads.

4. The anti-seepage anti-vibration loosening pipeline connecting structure according to claim 1, wherein: the movable nut is internally provided with a right-hand thread.

5. The anti-seepage anti-vibration loosening pipeline connecting structure according to claim 1, wherein: the fastening nut is internally provided with left-hand threads.

6. The anti-seepage anti-vibration loosening pipeline connecting structure as claimed in claims 1 to 5, wherein: the fixed joint, the movable nut and the fastening nut form a connecting structure, and an interlocking structure is formed by applying pretightening force.

7. The anti-seepage anti-vibration loosening pipeline connecting structure according to claim 1, wherein: the thickness of the inner gasket body and the outer gasket body is 3mm-5 mm.

Technical Field

The invention belongs to the field of mechanical pipeline connection, and relates to an anti-seepage anti-vibration loosening structure.

Background

In the cooling system of most equipment, a pipeline system used as a cooling medium carrier is formed by connecting a plurality of sections of pipelines; the pipeline connection generally adopts the form of a movable nut and a connector, and the sealing forms of the connection are various, such as conical surface sealing, thread self-sealing, sealing ring sealing and the like. The existing connecting and sealing structure is easy to have the fault phenomena of leakage, loosening and the like under the influence of the self factors of equipment and environmental factors on a pipeline; meanwhile, the using effect of the existing connecting and sealing structure is also influenced by the processing level and the actual installation level.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the anti-seepage anti-vibration loosening pipeline connecting structure, which improves the sealing reliability, prevents loosening by utilizing a self-locking structure and is convenient to install and disassemble.

In order to achieve the purpose, the invention adopts the following technical scheme:

a pipeline connecting structure with seepage prevention and vibration loosening prevention comprises a fixed joint, a movable nut, a fastening nut, an inner gasket and an outer gasket; the fixed joint is the tail end of one section of pipeline, the movable joint is arranged in the movable nut, the movable nut is connected with the fixed joint, and the fastening nut is screwed on the movable joint and arranged on the right side of the movable nut.

Furthermore, right-hand threads are arranged outside the fixed joint.

Furthermore, a left-hand thread is arranged outside the movable joint.

Furthermore, a right-hand thread is arranged in the movable nut.

Furthermore, the fastening nut is internally provided with left-hand threads.

Furthermore, the fixed joint, the movable nut and the fastening nut form an interlocking structure after being connected.

Further, the inner gasket is arranged on the contact end face of the inner diameter of the fixed joint and the movable joint, and the outer gasket is arranged on the contact end face of the outer diameter of the fixed joint and the movable joint.

Compared with the prior art, the nut has the advantages that the reliability is high after the self-locking condition is formed by adopting a pipeline connection mode, the installation and the disassembly are simple, the nut can be repeatedly utilized, other auxiliary installation tools are not needed, and redundant processing procedures are not needed for the nut. The structure of the inner washer and the outer washer improves the resistance to external conditions (high salt spray, high temperature difference and the like) on the basis of double protection.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a removable nut;

FIG. 3 is a schematic view of a fastening nut;

FIG. 4 is a schematic view of a movable joint;

FIG. 5 is a schematic view of an outer gasket;

fig. 6 is a schematic view of an inner gasket.

Wherein the reference numerals are as follows: 1: fixed joint, 2: inner gasket, 3: outer gasket, 4: movable joint, 5: movable nut, 6: and (5) tightening the nut.

Detailed Description

The technical solution of the present invention is further illustrated by the following examples.

Fig. 1 is a schematic view of the overall structure of the invention, fig. 2-6 are schematic views of parts, and illustrate an anti-seepage anti-vibration loosening pipeline connecting structure, which comprises a fixed joint, a movable nut, a fastening nut, an inner gasket and an outer gasket. The movable joint is arranged in the movable nut, a left-hand thread is processed outside the movable joint, and the fastening nut is a left-hand thread. The fixed joint is generally the end of a section of pipeline in concrete practical application, the movable nut is connected with the fixed joint and is right-handed thread, the movable nut is screwed into the fixed joint and is screwed, then the movable nut is clamped, the fastening nut is screwed, a friction torque is formed between the movable nut and the fastening nut through applied pretightening force, an interlocking structure is formed by utilizing different thread turning directions of the movable nut and the fastening nut, and the purpose of preventing vibration and loosening is achieved. An inner washer and an outer washer are arranged between the fixed joint and the movable joint. The inner gasket is arranged on the contact end surface of the inner diameters of the fixed joint and the movable joint, and the outer gasket is arranged on the contact end surface of the outer diameters of the fixed joint and the movable joint. The inner gasket forms a first anti-seepage structure, the outer gasket forms a second anti-seepage structure, and meanwhile, the anti-seepage structure has a certain effect of preventing external condensate water and the like from permeating.