CN102207235B

CN102207235B - Pipe joint sealing device

Info

Publication number: CN102207235B
Application number: CN201110150009.7A
Authority: CN
Inventors: 吴宝森
Original assignee: Harbin Aircraft Industry Group Co Ltd
Current assignee: Harbin Aircraft Industry Group Co Ltd
Priority date: 2011-06-03
Filing date: 2011-06-03
Publication date: 2013-01-16
Anticipated expiration: 2031-06-03
Also published as: CN102207235A

Abstract

The invention belongs to the field of the metal pipe joint sealing devices and relates to a pipe joint sealing device comprising a semi-circle sleeve, a rubber pad, an outer sheath, an inner sheath, and a plug, wherein the inner side of the semi-circle sleeve is in contact with the outer side of the pipe joint, and one end of the semi-circle sleeve is provided with an inward boss; and the boss is buckled in a groove at one end of the inner sheath, the outer side and the inner side of the inner sheath are all provided with screw threads in design. The semi-circle sleeve and the inner sheath are screwed into the outer sheath. The middle part inside the outer sheath is provided with a screw thread, and the two ends of the screw thread are provided with light holes in design. The light holes are matched with the outer diameter of the semi-circle sleeve so as to ensure that semi-circle sleeve is buckled in the groove of the inner sheath all the time. The rubber pad is placed in the pipe joint. The plug is screwed into the inner sheath, so that the rubber pad is tightly pressed by one end of the plug to accomplish the sealing of the pipe joint.

Description

Pipe joint sealing device

技术领域 technical field

本发明属于金属管接头密封装置领域。 The invention belongs to the field of sealing devices for metal pipe joints. the

背景技术 Background technique

现有金属管往往通过焊接的方式与管接头连接，为了测试管接头与金属管焊点的密封性或者将带管接头的金属管堵住，要对金属管管接头进行密封。 Existing metal pipes are often connected to pipe joints by welding. In order to test the tightness of the solder joints between the pipe joints and metal pipes or to block the metal pipes with pipe joints, the metal pipe joints must be sealed. the

现有管接头的密封一般都是利用法兰盘、橡胶垫、螺栓、螺母、压板等零件组合来进行密封的，如附图3所示。现有的管接头密封装置需要压板和法兰盘的形状与管接头一致，而且管接头需要有较大的强度以满足密封时压板和法兰盘所施加的压力。如果遇到管接头的结构比较特殊，自身的强度较差的管接头时利用现有的方法进行密封往往不能达到密封的目的，同时还可能将管接头损坏。 The sealing of existing pipe joints generally all utilizes the combination of parts such as flange plate, rubber pad, bolt, nut, pressure plate to carry out sealing, as shown in accompanying drawing 3. The existing sealing device for pipe joints needs the shape of the pressure plate and the flange to be consistent with that of the pipe joint, and the pipe joint needs to have greater strength to meet the pressure exerted by the pressure plate and the flange during sealing. If the structure of the pipe joint is special and the pipe joint with poor self-strength is used for sealing, the existing method often cannot achieve the purpose of sealing, and the pipe joint may be damaged simultaneously. the

发明内容 Contents of the invention

本发明的目的是： The purpose of the present invention is:

设计一种管接头密封时所用的管接头密封装置，能对管接头进行有效密封。 A pipe joint sealing device used for sealing pipe joints is designed, which can effectively seal the pipe joints. the

本发明的技术方案是： Technical scheme of the present invention is:

一种管接头密封装置，由半圆套1、橡胶垫2、外套3、内套4和堵5组成； A pipe joint sealing device, which consists of a semicircular sleeve 1, a rubber pad 2, an outer sleeve 3, an inner sleeve 4 and a plug 5;

半圆套1由两个半圆部分组成，它的内部表面与管接头外部表面相接触，半圆套1远离金属管端设计有一个向内的凸台7，该凸台7扣入内套4靠近金属管一端的凹槽8内； The semi-circular sleeve 1 is composed of two semi-circular parts, its inner surface is in contact with the outer surface of the pipe joint, and the semi-circular sleeve 1 is designed with an inward boss 7 away from the end of the metal pipe, and the boss 7 is buckled into the inner sleeve 4 close to the metal pipe In the groove 8 at one end;

内套4的外部和内部都有螺纹，外套3内部中间部分设有螺纹，外套3通过内套4外部和外套3内部的配合螺纹旋套在半圆套1和内套4外； There are threads on the outside and inside of the inner sleeve 4, and the inner middle part of the outer sleeve 3 is provided with threads, and the outer sleeve 3 is screwed on the outside of the semicircular sleeve 1 and the inner sleeve 4 through the matching thread on the outside of the inner sleeve 4 and the inner sleeve of the outer sleeve 3;

外套3内部中间部分螺纹的两端设计有光孔10，光孔10与半圆套1的外径相配合，并保证半圆套1始终扣与内套4的凹槽8内； The two ends of the thread in the middle part of the outer jacket 3 are designed with light holes 10, the light holes 10 match the outer diameter of the semicircular sleeve 1, and ensure that the semicircular sleeve 1 is always buckled in the groove 8 of the inner sleeve 4;

堵5的外部具有螺纹，堵5的外部与内套4内部之间通过螺纹配合，堵5的一端压紧放置在管接头的内部的橡胶垫2，使橡胶垫2完成对管接头的密封。 The outside of the plug 5 has threads, and the outside of the plug 5 and the inside of the inner sleeve 4 are threaded, and one end of the plug 5 is pressed against the rubber pad 2 placed inside the pipe joint, so that the rubber pad 2 completes the sealing of the pipe joint. the

本发明的优点是： The advantages of the present invention are:

该管接头密封装置可以对不同规格、不同结构、不同强度的管接头进行有效密封。 The pipe joint sealing device can effectively seal pipe joints of different specifications, structures and strengths. the

附图说明 Description of drawings

附图1是本管接头密封装置的结构示意图； Accompanying drawing 1 is the structural representation of this pipe joint sealing device;

附图2是堵5的结构示意图； Accompanying drawing 2 is the structural representation of blocking 5;

附图3是现有管接头的密封装置结构示意图； Accompanying drawing 3 is the structural representation of the sealing device of existing pipe joint;

具体实施方式 Detailed ways

半圆套1由两个半圆部分组成，它的内部表面与管接头外部表面相接触，半圆套1远离金属管端设计有一个向内的凸台7，该凸台7扣入内套靠近金属管一端的凹槽8内； The semi-circular sleeve 1 is composed of two semi-circular parts, its internal surface is in contact with the external surface of the pipe joint, and the semi-circular sleeve 1 is designed with an inward boss 7 away from the end of the metal pipe, and the boss 7 is buckled into the inner sleeve near the end of the metal pipe In the groove 8;

内套4的外部和内部都有螺纹，外套3内部中间部分设有螺纹，外套3通过内套外部和外套3内部的配合螺纹旋套在半圆套1和内套外； There are threads on the outside and inside of the inner sleeve 4, and the inner middle part of the outer sleeve 3 is provided with threads, and the outer sleeve 3 is screwed on the outside of the semicircular sleeve 1 and the inner sleeve through the matching threads on the outside of the inner sleeve and the inside of the outer sleeve 3;

外套3内部中间部分螺纹的两端设计有光孔10，光孔10与半圆套1的外径相配合，并保证半圆套1始终扣与内套的凹槽8内； The two ends of the thread in the middle part of the outer jacket 3 are designed with light holes 10, the light holes 10 match the outer diameter of the semicircle sleeve 1, and ensure that the semicircle sleeve 1 is always buckled in the groove 8 of the inner sleeve;

堵5的靠近金属管一端设计有减轻孔12，远离金属管一端为六方头11，用于扳手旋动时使用；堵5的外部具有螺纹，堵5的外部与内套内部之间通过螺纹配合，内套4远离金属管一端加工有扁9，扁9可在堵5旋动时使用扳手将内套固定；堵5的一端压紧放置在管接头的内部的橡胶垫，使橡胶垫完成管接头密封。 The end of the plug 5 close to the metal pipe is designed with a lightening hole 12, and the end far away from the metal pipe is a hexagonal head 11, which is used when the wrench is turned; the outside of the plug 5 has threads, and the outside of the plug 5 and the inside of the inner sleeve are threaded. , the end of the inner sleeve 4 away from the metal pipe is processed with a flat 9, and the flat 9 can be used to fix the inner sleeve with a wrench when the plug 5 is rotated; one end of the plug 5 is pressed against the rubber pad placed inside the pipe joint, so that the rubber pad completes the pipe The joint is sealed. the

使用本发明时，先将内套套在管接头上，再将两个半圆套1与管接头外部表面相接触并通过凸台7与凹槽8的配合扣接在内套上，再将外套3旋套在内套和半圆套1外，此时，可将橡胶垫2放置在管接头的内部，再将堵5旋入内套4内，进一步旋转堵5可压紧橡胶垫从而完成管接头密封。 When using the present invention, first put the inner sleeve on the pipe joint, then contact the two semicircular sleeves 1 with the outer surface of the pipe joint and fasten the inner sleeve through the cooperation between the boss 7 and the groove 8, and then put the outer sleeve 3 The screw sleeve is outside the inner sleeve and the semi-circular sleeve 1. At this time, the rubber pad 2 can be placed inside the pipe joint, and then the plug 5 is screwed into the inner sleeve 4. Further rotation of the plug 5 can compress the rubber pad to complete the sealing of the pipe joint. . the

Claims

1. The pipe joint sealing device is characterized by comprising a semicircular sleeve (1), a rubber pad (2), an outer sleeve (3), an inner sleeve (4) and a plug (5); wherein,

the semicircular sleeve (1) consists of two semicircular parts, the inner surface of the semicircular sleeve is contacted with the outer surface of the pipe joint, an inward boss (7) is designed at the end, far away from the metal pipe, of the semicircular sleeve (1), and the boss (7) is buckled into a groove (8) at one end, close to the metal pipe, of the inner sleeve (4);

the outer part and the inner part of the inner sleeve (4) are both provided with threads, the middle part of the inner part of the outer sleeve (3) is provided with threads, and the outer sleeve (3) is sleeved outside the semicircular sleeve (1) and the inner sleeve (4) in a rotating way through the matched threads on the outer part of the inner sleeve (4) and the inner part of the outer sleeve (3);

both ends of the middle part of the thread in the outer sleeve (3) are provided with unthreaded holes (10), the unthreaded holes (10) are matched with the outer diameter of the semicircular sleeve (1), and the semicircular sleeve (1) is ensured to be always buckled in the groove (8) of the inner sleeve (4);

the outer part of the plug (5) is provided with threads, the outer part of the plug (5) is matched with the inner part of the inner sleeve (4) through the threads, and one end of the plug (5) is tightly pressed on the rubber gasket (2) placed in the pipe joint, so that the rubber gasket (2) can seal the pipe joint.

2. A pipe joint sealing device according to claim 1, wherein the end of the plug (5) close to the metal pipe is a lightening hole (12), and the end far away from the metal pipe is designed with a hexagonal head (11).

3. A pipe joint sealing device according to claim 1, characterized in that the end of the inner sleeve (4) remote from the metal pipe is provided with a flat (9) adapted to be used with a wrench.