CN219159838U

CN219159838U - Welding-free pipe orifice sealing device

Info

Publication number: CN219159838U
Application number: CN202222707372.0U
Authority: CN
Inventors: 陈磊; 鲁定齐; 王发展
Original assignee: Aerosun Corp
Current assignee: Aerosun Corp
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-06-09
Anticipated expiration: 2032-10-14

Abstract

The utility model relates to a welding-free pipe orifice sealing device, and belongs to the technical field of sealed space facilities. The device comprises two involutive semicircular hoops and a cover plate with a sealing test interface; the circumference of the end face of the semicircular clamp is provided with threaded holes which are distributed at intervals, and through holes which correspond to the threaded holes respectively are distributed at intervals on the circumference of the cover plate; the two semicircular hoops are fixedly connected and hooped outside the connecting pipe in an involution mode, the cover plate is fixedly connected with the two involution semicircular hoops through bolts penetrating through the through holes and screwed into corresponding threaded holes, and a sealing ring is clamped between the inner end face of the cover plate and a port of the connecting pipe. The utility model completely avoids various defects of welding and plugging, has convenient disassembly and assembly and high efficiency, can meet the inspection requirement of sealing, is easy to manufacture and can be repeatedly used, and is suitable for sealing tests of various products with open connecting pipes.

Description

Welding-free pipe orifice sealing device

Technical Field

The utility model relates to a sealing device, in particular to a welding-free pipe orifice sealing device, and belongs to the technical field of sealed space facilities.

Background

In the sealed box manufacturing industry, when the sealed box is manufactured, the sealing performance of the sealed box needs to be verified through air tightness test.

In general, since the sealed chambers are manufactured with open fittings, the fittings must be effectively plugged when performing an airtight test. The welding plugging is adopted for a long time in the prior art, so that the workload is large, the connecting pipe is easy to deform, and the connecting pipe is difficult to cut after a sealing test, thereby bringing difficulty to rapidly completing the tightness test.

Disclosure of Invention

The utility model aims at: aiming at the problems in the prior art, the welding-free pipe orifice sealing device capable of reducing the workload and avoiding welding deformation is provided, and the inspection work efficiency is improved on the premise of ensuring the air tightness inspection quality.

In order to achieve the above purpose, the basic technical scheme of the welding-free pipe orifice sealing device of the utility model is as follows: comprises two involutive semicircular hoops and a cover plate with a sealing test interface;

the circumference of the end face of the semicircular clamp is provided with threaded holes which are distributed at intervals, and through holes which correspond to the threaded holes respectively are distributed at intervals on the circumference of the cover plate;

the two semicircular hoops are fixedly connected and hooped outside the connecting pipe in an involution mode, the cover plate is fixedly connected with the two involution semicircular hoops through bolts penetrating through the through holes and screwed into corresponding threaded holes, and a sealing ring is clamped between the inner end face of the cover plate and a port of the connecting pipe.

Compared with the prior art, the utility model completely avoids various defects of welding and plugging, has convenient disassembly and assembly and high efficiency, can meet the inspection requirement of sealing, is easy to manufacture and can be repeatedly used, and is suitable for sealing tests of various products with open connecting pipes.

The utility model is further perfected as follows: the right half round clamp of the two half round clamps is provided with symmetrical countersunk head through holes on two sides, and the corresponding position of the left half round clamp is provided with a through hole with a locking bottom surface.

Another further refinement of the present utility model is: the two semicircular hoops have the same structure, and are provided with countersunk through holes on one side and through holes with locking bottom surfaces on the symmetrical positions on the other side.

The utility model is further perfected as follows: the through holes are coaxial with the corresponding countersunk holes, and the locking bottom surface is parallel to the butt joint surface of the two semicircular hoops and perpendicular to the through holes.

Drawings

The utility model will be described in further detail with reference to specific embodiments and accompanying drawings.

Fig. 1 is a schematic structural diagram of a first embodiment of the present utility model.

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1.

Fig. 3 is a schematic perspective exploded view of the embodiment of fig. 1.

Fig. 4 is a schematic structural diagram of a second embodiment of the present utility model.

Detailed Description

Example 1

The welding-free pipe orifice sealing device in the embodiment is shown in fig. 1 to 3, and comprises a left semicircular clamp 1 and a right semicircular clamp 1', a semicircular clamp 1' and a cover plate 2, wherein the semicircular clamp is matched with the semicircular clamp, and a sealing test interface 3 is welded at the center of the semicircular clamp.

The right semicircle clamp 1 'is provided with symmetrical countersunk head perforations 1' -1 on two sides, the corresponding position of the left semicircle clamp 1 is provided with a through perforation with a locking bottom surface 1-1, the through perforation is coaxial with the countersunk head perforation, and the locking bottom surface 1-1 is parallel to the butt joint surface of the two semicircle clamps and is perpendicular to the through perforation.

The circumferences of the end surfaces of the left and right involution semicircular hoops 1 and 1' are provided with uniformly distributed threaded holes 1-2, and through holes 2-1 respectively corresponding to the threaded holes are distributed on the circumference of the cover plate 2 at intervals.

When the locking device is used, the left and right semi-circle clamps 1 and 1' are clamped at the position adjacent to the port of the connecting pipe 8 in a butt joint way, and the left and right semi-circle clamps are fixedly connected and clamped outside the connecting pipe 8 after being screwed by means of two inner hexagonal locking bolts 6 respectively penetrating through corresponding countersunk through holes and through holes and locking nuts 5 at the locking bottom surface 1-1. The cover plate 2 is fixedly connected with the two involution semicircle hoops through the inner hexagonal fixedly connected bolts 4 penetrating through the through holes and screwed into the corresponding threaded holes, and a sealing ring 7 is clamped between the inner end surface of the cover plate and the port of the connecting pipe 8, so that ideal detachable sealing of the port of the connecting pipe 8 is formed.

The welding-free pipe orifice sealing device of the embodiment properly solves the problems of low pipe orifice sealing efficiency and unreliable sealing of an open pipe orifice in a sealing test, has low cost, is convenient to assemble and disassemble, can be repeatedly used, and can be widely applied to various sealing test procedures of products with the open pipe orifice.

Example two

As shown in FIG. 4, the welding-free pipe orifice sealing device of the embodiment has the same basic structure as the first embodiment, and is different in that the left and right semi-circular hoops 1 and 1 'have the same structure, and are provided with countersunk through holes 1' -1 on one side and through holes with locking bottom surfaces 1-1 on the other side at symmetrical positions, so that the types of parts are few and the manufacturing is more convenient.

In addition to the embodiments described above, other embodiments of the utility model are possible. All technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A welding-free pipe orifice sealing device, characterized in that: comprises two involutive semicircular hoops and a cover plate with a sealing test interface;

2. The welding-free nozzle seal assembly of claim 1, wherein: the right half round clamp of the two half round clamps is provided with symmetrical countersunk head through holes on two sides, and the corresponding position of the left half round clamp is provided with a through hole with a locking bottom surface.

3. The welding-free nozzle seal assembly of claim 2, wherein: the two semicircular hoops have the same structure, and are provided with countersunk through holes on one side and through holes with locking bottom surfaces on the symmetrical positions on the other side.

4. A welding-free nozzle seal arrangement as claimed in claim 2 or claim 3, wherein: the through holes are coaxial with the corresponding countersunk holes, and the locking bottom surface is parallel to the butt joint surface of the two semicircular hoops and perpendicular to the through holes.