CN221221410U

CN221221410U - Airtight frock

Info

Publication number: CN221221410U
Application number: CN202322915478.4U
Authority: CN
Inventors: 徐刚; 闵文强
Original assignee: Wuxi Weibo Zhongshan Technology Co ltd
Current assignee: Wuxi Weibo Zhongshan Technology Co ltd
Priority date: 2023-10-30
Filing date: 2023-10-30
Publication date: 2024-06-25
Anticipated expiration: 2033-10-30

Abstract

The application specifically discloses an airtight tool which comprises an end cover, a cylinder body and a bottom cover which are sequentially communicated, wherein an elastic sealing element and a limiting piece are arranged in the end cover, the fixed end of the elastic sealing element is fixed on the limiting piece, an air valve is arranged on the cylinder body, a piston with a sealing ring is arranged in the cylinder body, the air valve controls the movement of the piston in the cylinder body through inflation and deflation, a spring is arranged in the bottom cover and is in contact with the piston, and the pushing force generated by deformation acts on the piston and a pipeline in a counteraction manner, so that the movable end of the elastic sealing element can deform in the end cover to seal the pipeline. According to the application, the elastic sealing element is deformed by the cooperation of the spring and the piston, so that the sliding of the pipeline is limited, and the sealing of the pipeline is completed. The whole airtight frock cover is established on the pipeline, and airtight frock's design size only needs the bodiness on the basis of pipeline diameter, and the volume is limited, is convenient for remove, and seal simple operation.

Description

Airtight frock

Technical Field

The application relates to the technical field of seal detection equipment, in particular to an airtight tool.

Background

The air tightness test refers to a test method of introducing a pressure gas into a piping system to determine whether the piping system leaks by detecting the pressure of the gas or the leakage amount of the gas in the piping system. The utility model provides a common gas tightness detects frock is comparatively complicated, for example the chinese patent of publication No. CN109596270a, and it discloses a frock for automobile pipeline gas tightness detects, including the base with establish on the base slidable air inlet compact heap and be used for driving the gliding drive structure of air inlet compact heap, be equipped with on the base and be used for the pipeline tip locating plate to automobile pipeline tip location, be equipped with on the air inlet compact heap be used for with automobile pipeline tip matched with sealing joint. The clamping and sealing of the parts can be rapidly carried out through the sliding structure, and the tightness of the assembly of the automobile pipeline is ensured.

The airtight tool strengthens external force at the pipeline joint by virtue of a complex driving structure, and realizes sealing. The pipeline airtight detection needs to carry the airtight frock to detect the pipeline of different positions, and above-mentioned airtight frock volume weight is big, difficult transport, difficult quick airtight detection.

Disclosure of Invention

In order to solve the problem that the traditional airtight tool cannot be conveniently detected, the application provides an airtight tool.

The application provides an airtight tool, which adopts the following technical scheme:

The utility model provides an airtight frock, includes end cover, barrel and the bottom that communicates in proper order, be equipped with elastic seal spare and spacing piece in the end cover, the pipeline is followed the pipeline entering end of end cover gets into, and passes in proper order elastic seal spare with spacing piece, elastic seal spare's stiff end is fixed on the spacing piece, install the pneumatic valve on the barrel, be provided with the piston of taking the sealing washer in the barrel, the pneumatic valve is in through filling gassing control piston and moving in the barrel, be equipped with the spring in the bottom, the spring with the piston is contradicted, the impetus reaction that produces through deformation is in on piston and the pipeline, make elastic seal spare's expansion end can take place deformation in the end cover, seals the pipeline.

Further, a cover plate is arranged at the pipeline inlet end of the end cover, a fixing hole is formed in the cover plate, a tightening bolt is arranged in the fixing hole, and the fixing end of the elastic sealing element is tightly abutted to the limiting piece by the tightening bolt.

Further, a reset hole is formed in the cover plate, a reset piece is arranged in the reset hole in a penetrating mode, and the reset piece pushes the movable end of the elastic sealing piece to reset.

Further, the reset hole is positioned at the maximum deformation of the movable end of the elastic sealing element.

Further, the movable end of the elastic sealing element is chamfered.

Further, the end cover is detachably connected with the cylinder body.

Further, the cylinder body is detachably connected with the bottom cover.

Further, the end cover, the cylinder body and the inner wall of the bottom cover are all provided with chamfers.

By adopting the technical scheme, the application has at least the following advantages:

1. According to the application, an operator enters a pipeline from the pipeline inlet end of the end cover into the end cover, and sequentially passes through the elastic sealing piece and the limiting piece; the elastic sealing element is limited by the limiting piece and is kept still; the end part of the pipeline enters the cylinder part to push the piston compression spring in the cylinder part, when the compression deformation amount of the spring reaches the maximum, the thrust on the pipeline is removed, the spring is deformed and recovered, the thrust is generated, the thrust acts on the piston and indirectly acts on the pipeline, the pipeline moves towards the opposite direction of the entering direction of the pipeline, friction force is generated in the sliding process of the pipeline, the movable end of the elastic sealing element is driven to deform towards the opposite direction of the entering direction of the pipeline, and after the elastic sealing element deforms, the sliding of the pipeline is limited, and the sealing of one end of the pipeline is completed. The operator opens the air valve to inflate the cylinder, the air pressure in the cylinder increases, the air pressure pushes the piston to move towards the bottom cover, and the sealing ring on the piston completes the sealing of the other end of the pipeline. The whole airtight frock cover is established on the pipeline, and airtight frock's design size only needs the bodiness on the basis of pipeline diameter, and the volume is limited, is convenient for remove, and seal simple operation.

2. According to the application, the pressure generated by the abutting bolt is converted into static friction force, so that the relative position between the limiting piece and the fixed end of the elastic sealing element is fixed, and an operator only needs to release the abutting bolt, so that the limiting piece and the elastic sealing element can be separated, and the elastic sealing element can be replaced conveniently.

3. According to the application, the reset piece is used, and is aligned with the movable end of the elastic sealing piece to apply force through the reset hole, so that the movable end of the elastic sealing piece is recovered to deform, the air valve is matched for deflation, the pressure in the cylinder body is reduced, the pipeline can be pulled out, and the sealing of the pipeline is relieved.

4. According to the application, the movable end of the elastic sealing element is chamfered, so that the deformation and the restoring abrasion loss of the movable end of the elastic sealing element are reduced.

5. The chamfering device has the advantages that the chamfering is arranged on the inner walls of the end cover, the barrel and the bottom cover, so that the guiding effect is realized, and the risks of damage to the pipeline and degradation of the quality of the pipeline caused by friction between the pipeline and the airtight tool in the inserting process are reduced.

Drawings

Fig. 1 is a schematic diagram of a specific structure of an airtight tool according to embodiment 1 of the present application.

Reference numerals:

1. An end cap; 11. an elastic seal; 12. a limiting piece; 13. a cover plate; 131. a fixing hole; 132. a tightening bolt; 133. a reset hole; 134. a reset member; 2. a cylinder; 21. an air valve; 22. a piston; 23. a seal ring; 3. a bottom cover; 31. and (3) a spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following more detailed description of the device according to the present utility model is given with reference to the accompanying drawings and the detailed description. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the utility model. For a better understanding of the utility model with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it would be understood by those skilled in the art, and that any structural modifications, proportional changes, or dimensional adjustments made in the drawings should not be construed as unduly limiting the utility model, but rather as falling within the scope of the utility model herein disclosed.

Examples

Example 1

Referring to fig. 1, an airtight tool comprises an end cover 1, a barrel 2 and a bottom cover 3 which are detachably connected in sequence. An installation space is formed in the end cover 1, an elastic sealing element 11 and a limiting piece 12 are sequentially arranged in the end cover 1 along the pipeline entering direction, and the fixed end of the elastic sealing element 11 is fixed on the limiting piece 12. A piston 22 is arranged in the cylinder 2, a sealing ring 23 is arranged at one end of the piston 22, the sealing ring 23 is abutted against the bottom cover 3, an air valve 21 is arranged on the cylinder 2, the air valve 21 is used for inflating the inner cavity of the cylinder 2, and a spring 31 is fixed in the bottom cover 3. When the pipeline is sealed, one end of the pipeline enters the end cover 1, sequentially passes through the elastic sealing element 11 and the limiting piece 12, enters the cylinder 2, pushes the piston 22 to move towards the bottom cover 3, the spring 31 is compressed, the pushing force applied to the pipeline is removed, the spring 31 is deformed in a recovery mode, the pushing force is generated, the pushing force is reacted on the piston 22 and the pipeline, the pipeline moves reversely, the movable end of the elastic sealing ring 23 is driven to move in a direction away from the limiting piece 12, the elastic sealing ring 23 is deformed, and one end of the pipeline is sealed. The operator opens the air valve 21, and air is taken in through the air valve 21, and pushes the piston 22 to move, so that the sealing ring 23 is positioned at the joint of the cylinder body 2 and the bottom cover 3, and the gap at the joint of the cylinder body 2 and the bottom cover 3 is sealed, so that the sealing of the other end of the pipeline is completed.

Referring to fig. 1, a cover plate 13 is provided on an end cover 1, a fixing hole 131 is provided on the cover plate 13, an abutting bolt 132 is connected with an internal thread in the fixing hole 131, one end of the abutting bolt 132 extends into the end cover 1, and the fixed end of the elastic sealing element 11 abuts against the limiting piece 12, when the elastic sealing element 11 needs to be replaced, the abutting bolt 132 is rotated reversely, and the pressure of the abutting bolt 132 on the elastic sealing element 11 is relieved, so that the limiting piece 12 and the elastic sealing element 11 can be separated.

Referring to fig. 1, the cover plate 13 is further provided with a restoring hole, in which a restoring member 134 is inserted, and one end of the restoring member 134 can push the movable end of the elastic sealing member 11, so that the elastic sealing member 11 recovers to deform. The restoring hole is positioned at the maximum deformation of the movable end of the elastic sealing element 11, the distance that the restoring element 134 stretches into the restoring hole is shorter, the force required for restoring the elastic sealing element 11 is smaller, the elastic sealing element 11 can be fully ensured to realize quick restoration with the minimum force, and the sealing can be quickly released in the later period.

Referring to fig. 1, the movable end of the elastic sealing member 11 is chamfered, and the chamfering is provided to reduce deformation and restoring wear of the movable end of the elastic sealing member 11. And the service time of the airtight tool is prolonged. Simultaneously, end cover 1, barrel 2 and bottom 3 inner wall all are provided with the chamfer, and the chamfer of here has the guide effect to reduce the pipeline and rub with airtight frock in the insertion process, cause the pipeline damage, the risk of pipeline quality decline.

Working principle of example 1: the pipe is inserted from the pipe inlet end of the end cover 1, passes through the elastic sealing element 11 and the limiting piece 12, and pushes the piston 22 to press the spring 31; the spring 31 extrudes the deformation to generate a reaction force, so that the pipeline is pushed to move reversely, the reaction force is converted into static friction force and indirectly acts on the elastic sealing element 11, the movable end of the elastic sealing element 11 deforms along with the movement of the pipeline, the deformation is carried out towards the end far away from the limiting element, and after the deformation, the elastic sealing element 11 limits the sliding of one end of the pipeline; the air valve 21 is inflated, the piston 22 moves towards the pipeline moving direction again, the sealing ring 23 is abutted against the bottom cover 3, and sealing is completed. When the sealing is released, the air valve 21 is opened to release air, and the reset piece 134 pushes the movable end of the elastic sealing piece 11 to reset, so that the pipeline and the end cover 1 can be separated.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

Moreover, the foregoing examples are illustrative of only a few embodiments of the invention, and are not intended to limit the scope of the invention in any way. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The utility model provides an airtight frock, its characterized in that, including end cover (1), barrel (2) and bottom (3) that communicate in proper order, be equipped with elastic seal spare (11) and spacing piece (12) in end cover (1), the pipeline is followed pipeline entering end of end cover (1) gets into, and passes in proper order elastic seal spare (11) with spacing piece (12), the stiff end of elastic seal spare (11) is fixed on spacing piece (12), install pneumatic valve (21) on barrel (2), be provided with piston (22) of taking sealing washer (23) in barrel (2), pneumatic valve (21) are in through filling, gassing control piston (22) in barrel (2) remove, be equipped with spring (31) in bottom (3), spring (31) with piston (22) are contradicted, are in through the driving force reaction that deformation produced on piston (22) and the pipeline, make elastic seal spare (11)'s movable end can take place deformation in end cover (1), seal.

2. The gas tight fixture of claim 1, wherein: the pipeline entering end of the end cover (1) is provided with a cover plate (13), a fixing hole (131) is formed in the cover plate (13), a tightening bolt (132) is arranged in the fixing hole (131), and the tightening bolt (132) tightly tightens the fixed end of the elastic sealing piece (11) on the limiting piece (12).

3. An airtight fixture as claimed in claim 2, wherein: the cover plate (13) is provided with a reset hole (133), a reset piece (134) is arranged in the reset hole (133) in a penetrating mode, and the reset piece (134) pushes the movable end of the elastic sealing piece (11) to reset.

4. A gas tight fixture as claimed in claim 3, wherein: the reset hole (133) is positioned at the maximum deformation of the movable end of the elastic sealing element (11).

5. The gas tight fixture of claim 1, wherein: the movable end of the elastic sealing element (11) is chamfered.

6. The gas tight fixture of claim 1, wherein: the end cover (1) is detachably connected with the cylinder body (2).

7. The gas tight fixture of claim 1, wherein: the cylinder body (2) is detachably connected with the bottom cover (3).

8. The gas tight fixture of claim 1, wherein: the end cover (1), the cylinder body (2) and the inner wall of the bottom cover (3) are provided with chamfers.