CN220104376U

CN220104376U - Rigid tube airtight detection device and equipment

Info

Publication number: CN220104376U
Application number: CN202320145883.XU
Authority: CN
Inventors: 张健; 邢栋栋; 马瑞
Original assignee: Jinan Kede Intelligent Technology Co ltd
Current assignee: Jinan Kede Intelligent Technology Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-11-28
Anticipated expiration: 2033-01-30

Abstract

The utility model discloses a rigid pipe airtight detection device and equipment, the rigid pipe airtight detection device comprises a cylinder body (10), a piston (20), a cylinder cover (30) and a first sealing ring (40), the cylinder cover is fixed at one end of the cylinder body, the cylinder cover is provided with an inserting hole (31) for inserting a rigid pipe (50) and a groove (32) communicated with the inserting hole, the first sealing ring is arranged in the groove, the piston is arranged in the cylinder body in a reciprocating manner and can extend into the groove to squeeze the first sealing ring so as to tightly expand the rigid pipe, the piston is provided with an air passage (21) which can be communicated with the tightly expanded rigid pipe, and the cylinder body is provided with a first air port (11) which can be inflated through the air passage. The piston can be made to squeeze the first sealing ring by moving the piston, so that the rigid pipe is tensioned, and smooth detection is ensured.

Description

Rigid tube airtight detection device and equipment

Technical Field

The utility model relates to the field of detection devices, in particular to a rigid tube airtight detection device and equipment.

Background

For many rigid pipes (e.g. steel pipes) an airtight test is required to ensure that the tightness of the rigid pipe meets the requirements of use. In the prior art, gaskets are generally used for sealing two ends of a rigid pipe, and then the air is inflated from the opening of the gasket for detection. Because the sealing gasket needs to be plugged into the rigid pipe, the rigid pipe needs to be frequently replaced for detection, and the sealing gasket is easy to damage. Also, the gasket is provided with an opening to be inflated, which makes the service life of the gasket further reduced, and there is a problem that the gasket is deformed by frequent insertion into the rigid tube for long-term use, which may result in further reduction of sealability.

Therefore, how to improve the sealing property in the airtight detection of a rigid tube is a technical problem to be solved by the present utility model.

Disclosure of Invention

In view of the above, the present utility model provides a rigid tube airtight detection apparatus to improve the tightness during airtight detection.

The utility model provides a rigid pipe airtight detection device, which comprises a cylinder body, a piston, a cylinder cover and a first sealing ring, wherein the cylinder cover is fixed at one end of the cylinder body, the cylinder cover is provided with an insertion hole for inserting a rigid pipe and a groove communicated with the insertion hole, the first sealing ring is arranged in the groove, the piston is arranged in the cylinder body in a reciprocating manner and can extend into the groove to squeeze the first sealing ring, so that the rigid pipe is tensioned, the piston is provided with an air passage which can be communicated with the tensioned rigid pipe, and the cylinder body is provided with a first air port which can be inflated through the air passage.

Optionally, a channel extending along the moving direction of the piston is arranged at the other end of the cylinder body, the first air port is arranged on the side wall of the other end of the cylinder body and is communicated with the channel, the piston comprises a rod-shaped portion which is sealed and sleeved in the channel, and the air channel penetrates through the piston along the axial direction of the rod-shaped portion.

Optionally, the piston comprises a main body part matched with the inner wall of the cylinder body, the rod-shaped part is arranged on one side of the main body part, and the other side of the main body part is provided with a squeezing part capable of extending into the groove.

Optionally, the pressing portion is rod-shaped, and the rod-shaped portion, the main body portion and the pressing portion are coaxially disposed.

Optionally, a second sealing ring is arranged between the main body part and the cylinder body.

Optionally, a third sealing ring is arranged between the channel and the rod-shaped part.

Optionally, the rigid tube airtight detection device includes a first air tap connected to the first air port.

Optionally, a second air port is arranged on the side wall of the cylinder body, and the rigid tube airtight detection device comprises an inflation and deflation unit connected to the second air port to inflate the cylinder body or deflate the cylinder body so as to drive the piston to move.

Optionally, the inflation and deflation unit comprises a pipeline connected to the second air port and a second air tap connected to the pipeline.

The utility model also provides rigid pipe airtight detection equipment, wherein the rigid pipe airtight detection equipment comprises two rigid pipe airtight detection devices.

According to the technical scheme of the utility model, the piston can be moved to press the first sealing ring, so that the rigid pipe is tensioned, good sealing is provided for the rigid pipe to perform inflation detection through the first air port and the air passage on one hand, and the rigid pipe is positioned on the other hand, so that smooth detection is ensured.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a cross-sectional view of a rigid tube airtight detecting apparatus according to a preferred embodiment of the present utility model.

Detailed Description

The technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings in combination with embodiments.

The utility model provides a rigid pipe airtight detection device, wherein the rigid pipe airtight detection device comprises a cylinder body 10, a piston 20, a cylinder cover 30 and a first sealing ring 40, wherein the cylinder cover 30 is fixed at one end of the cylinder body 10, the cylinder cover 30 is provided with an inserting hole 31 for inserting a rigid pipe 50 and a groove 32 communicated with the inserting hole 31, the first sealing ring 40 is arranged in the groove 32, the piston 20 is arranged in the cylinder body 10 in a reciprocating manner and can extend into the groove 32 to press the first sealing ring 40 so as to tighten the rigid pipe 50, the piston 20 is provided with an air passage 21 capable of being communicated with the tightened rigid pipe 50, and the cylinder body 10 is provided with a first air opening 11 capable of being inflated through the air passage 21.

By using the rigid pipe airtight detection device, the piston 20 can be moved to press the first sealing ring 40 by moving the piston 20, so that the rigid pipe 50 is tensioned, good sealing is provided for the rigid pipe 50 to perform inflation detection through the first air port 11 and the air passage 21, and the rigid pipe 50 is positioned to ensure that the detection is performed smoothly.

In the present utility model, the groove 32 can better define the position of the first seal ring 40, ensure that the first seal ring 40 is uniformly deformed during extrusion, and uniformly expand the rigid tube 50 circumferentially. Also, the first seal ring 40 may be axially disposed in plurality to provide a greater range of contact tension along the length of the rigid tube 50.

Wherein the first port 11, the air channel 21 may be positioned or otherwise configured to communicate with the air channel 21 when the rigid tube 50 is expanded. For example, the air passage 21 may extend from a portion of the piston 20 extending into the groove 32 to a circumferential surface of the piston 20 that mates with an inner wall of the cylinder 10, and the first air port 11 is provided on a side wall of the cylinder 10, and when the piston 20 presses the first seal ring 40, the first air port 11 corresponds to just a port of the air passage 21 at the circumferential surface of the piston 20.

Preferably, in order to improve sealability, as shown in fig. 1, the other end of the cylinder 10 may be provided with a passage 12 extending in a moving direction of the piston 20, the first air port 11 is provided on a sidewall of the other end of the cylinder 10 and communicates with the passage 12, the piston 20 includes a rod portion 22 sealed and sleeved on the passage 12, and the air passage 21 penetrates the piston 20 in an axial direction of the rod portion 22. One end of the air passage 21 can extend into the channel 12 through the rod-shaped part 22 and then communicate with the first air port 11, the other end of the air passage 21 extends into the groove 32 and then communicates with the internal channel of the rigid tube 50, so that the rigid tube 50 can be inflated through the first air port 11, the channel 12 and the air passage 21.

In addition, it will be appreciated that the lengths of the channel 12 and stem 22 are such that they remain sealed to one another throughout the range of movement of the piston 20. By sealing the channel 12 and the stem 22 together, it is ensured that the channel 12 and the air channel 21 are always in sealed communication during the movement of the piston 20, on the one hand, and that the stem 22 is moved along the channel 12, i.e. a guiding action is provided for the reciprocating movement of the piston 20 by the channel 12, on the other hand.

The piston 20 may be provided in a suitable form so as to be able to extend into the groove 32 to compress the first sealing ring 40 while moving within the cylinder 10. Preferably, as shown in fig. 1, the piston 20 includes a main body portion 23 engaged with an inner wall of the cylinder 10, the rod portion 22 is disposed at one side of the main body portion 23, and the other side of the main body portion 23 is provided with a pressing portion 24 capable of extending into the recess 32. Wherein the body portion 23 may be provided as a cylinder to facilitate the fitting of the inner wall of the cylinder 10. The rod-shaped portion 22 and the pressing portion 24 are provided on both sides of the main body portion 23, respectively, so as to be moved along the passage 12 by the rod-shaped portion 22 on the one hand, and to extend into the recess 32 by the pressing portion 24 on the other hand.

The pressing portion 24 is provided so as to be able to extend into the groove 32 when the piston 20 moves toward the cylinder head 30, and thus, the pressing portion 24 is sized to match the groove 32, so that, on the one hand, additional guidance can be provided for the movement of the piston 20, and, on the other hand, more uniform pressing of the first seal ring 40 can be provided by the pressing portion 24, ensuring uniform deformation of the first seal ring 40, and thus, the rigid tube 50 can be stably expanded. Specifically, as shown in fig. 1, the pressing portion 24 may have a rod shape. Preferably, the rod-shaped portion 22, the body portion 23 and the pressing portion 24 are coaxially arranged for ease of manufacturing and for improved stability in use of the device.

In order to ensure sealability while the piston 20 moves in the cylinder 10, a second seal ring 60 is provided between the body portion 23 and the cylinder 10. In addition, to ensure sealing of the channel 12 with the stem 22, a third sealing ring 70 is provided between the channel 12 and the stem 22. In the present utility model, the first seal ring 40, the second seal ring 60, and the third seal ring 70 may be made of an appropriate material, and preferably are elastically deformable, and may be, for example, seal rings.

In order to facilitate inflation through the first port 11 during the test, a corresponding inflation member may be connected to the first port 11. Preferably, the rigid tube airtight detecting means may include a first air nozzle 80 connected to the first air port 11.

In the present utility model, the piston 20 may be reciprocally moved within the cylinder 10 by being driven in an appropriate manner. Preferably, as shown in fig. 1, the sidewall of the cylinder 10 may be provided with a second air port 13, and the rigid tube airtight detecting means includes an air charging and discharging unit 90 connected to the second air port 13 to charge air into the cylinder 10 or discharge air from the cylinder 10 to drive the piston 30 to move.

When the rigid pipe 50 is tensioned, the air charging and discharging unit 90 can charge air into the cylinder body 10 through the second air port 13 so as to push the piston 20 to move towards the cylinder cover 30 through air pressure until the rod-shaped part 22 presses the first sealing ring 40 to tension the rigid pipe 50; after the detection, the air charging and discharging unit 90 can suck air from the cylinder 10 through the second air port 13, so that the piston 20 moves reversely, and the first sealing ring 40 is restored to a natural state after the extrusion is released, and the rigid tube 50 is released. The inflation/deflation unit 90 may take a suitable form, and may include, for example, a pipe 91 connected to the second air port 13 and a second air tap 92 connected to the pipe 91.

According to another aspect of the present utility model, there is provided a rigid tube airtight detecting apparatus, wherein the rigid tube airtight detecting apparatus comprises two rigid tube airtight detecting devices of the present utility model.

In use, the two ends of the tension rigid tube 50 can be sealed by two rigid tube airtight detection devices, respectively, for subsequent detection.

The operation of performing the airtight detection of the rigid tube 50 using the rigid tube airtight detection apparatus and equipment of the present utility model will be described below with reference to the accompanying drawings.

Wherein the rigid tube 50 may be a suitable type of tube, such as a thin walled steel tube or the like.

First, both ends of the rigid tube 50 are respectively inserted into the insertion holes 31 of the two rigid tube airtight detecting devices, so that the first seal ring 40 is sleeved with the end of the rigid tube 50.

Then, the cylinder 10 is inflated by the inflation/deflation unit 90 to push the piston 20 to move toward the cylinder head 30 until the pressing portion 24 presses the first seal ring 40 to deform to tighten the rigid pipe 50, thereby completing the end sealing and positioning of the rigid pipe 50.

Then, the rigid tube 50 may be inflated through the first air tap 80 via the first air port 11, the channel 12, and the air passage 21 until the predetermined pressure is maintained for a predetermined time after the predetermined pressure is reached in the rigid tube 50, and then the pressure is released through the first air tap 80, thereby completing the detection.

Finally, the first sealing ring 40 is restored to a natural state to release the rigid tube 50 by exhausting air from the cylinder block 10 through the air charge-discharge unit 90 to move the piston 20 away from the cylinder head 30. The rigid tube 50 is withdrawn from the receptacle 31.

The preferred embodiments of the present utility model have been described in detail above, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims

1. The utility model provides a rigid tube airtight detection device, its characterized in that, rigid tube airtight detection device includes cylinder body (10), piston (20), cylinder cap (30) and first sealing washer (40), cylinder cap (30) are fixed in the one end of cylinder body (10), cylinder cap (30) are provided with be used for inserting jack (31) of rigid tube (50) and with recess (32) of jack (31) intercommunication, first sealing washer (40) set up in recess (32), piston (20) reciprocally movable set up in cylinder body (10) and can stretch into recess (32) in order to extrude first sealing washer (40), thereby tensioning rigid tube (50), piston (20) are provided with can with the air flue (21) of rigid tube (50) intercommunication that rises, cylinder body (10) are provided with can be through air flue (21) inflatable first gas port (11).

2. The rigid tube airtight detecting device according to claim 1, wherein the other end of the cylinder (10) is provided with a passage (12) extending in the moving direction of the piston (20), the first air port (11) is provided on a side wall of the other end of the cylinder (10) and communicates with the passage (12), the piston (20) includes a rod-shaped portion (22) sealed and affixed to the passage (12), and the air passage (21) penetrates the piston (20) in the axial direction of the rod-shaped portion (22).

3. The rigid tube airtight detecting device according to claim 2, wherein said piston (20) includes a main body portion (23) fitted with an inner wall of said cylinder (10), said rod-like portion (22) is provided on one side of said main body portion (23), and the other side of said main body portion (23) is provided with a pressing portion (24) capable of extending into said groove (32).

4. A rigid tube airtight testing apparatus according to claim 3, wherein said pressing portion (24) is rod-shaped, and said rod-shaped portion (22), main body portion (23) and pressing portion (24) are coaxially arranged.

5. A rigid tube airtight testing apparatus according to claim 3, wherein a second sealing ring (60) is provided between said main body portion (23) and said cylinder (10).

6. A rigid tube airtight testing device according to claim 2, characterized in that a third sealing ring (70) is provided between said channel (12) and said stem (22).

7. The rigid tube airtight detection apparatus according to claim 1, characterized in that the rigid tube airtight detection apparatus comprises a first air nozzle (80) connected to the first air port (11).

8. The rigid tube airtight detection apparatus according to claim 1, wherein a side wall of the cylinder (10) is provided with a second gas port (13), and the rigid tube airtight detection apparatus includes a gas charging and discharging unit (90) connected to the second gas port (13) to charge gas to the cylinder (10) or to discharge gas from the cylinder (10) to drive the piston (20) to move.

9. The rigid tube airtight detecting device according to claim 8, wherein said inflation/deflation unit (90) includes a pipe (91) connected to said second gas port (13) and a second gas tap (92) connected to said pipe (91).

10. A rigid tube airtight detecting apparatus, characterized in that the rigid tube airtight detecting apparatus comprises two rigid tube airtight detecting devices according to any one of claims 1 to 9.