CN211147959U

CN211147959U - Corrugated pipe detection device

Info

Publication number: CN211147959U
Application number: CN201921424083.1U
Authority: CN
Inventors: 赵小斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-07-31
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to the technical field of corrugated pipe detection, in particular to a corrugated pipe detection device, which comprises a water tank, a hydraulic station and an air pressure station, wherein the hydraulic station and the air pressure station are arranged on one side of the water tank; compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a through install sealing device additional and will await measuring the bellows opening and arrange the bellows that awaits measuring in under the liquid level, can clearly distinguish whether the bellows leaks gas and further judge whether qualified, the convenient airtight condition of observation bellows directly perceived.

Description

Corrugated pipe detection device

Technical Field

The utility model relates to a bellows detects technical field, specific bellows detection device that says so.

Background

The metal corrugated pipe is a pipe with a regular wave-like appearance, and the commonly used metal corrugated pipes comprise carbon steel, stainless steel, steel lining plastic, aluminum and the like. The connecting device is mainly used for connecting pipelines or connecting pipelines and equipment in occasions where small bending radius non-concentric axial transmission is needed, or irregular turning and stretching are needed, or thermal deformation of the pipelines and the like are absorbed, or the fixed elbow is inconvenient to install. Chinese Utility model CN201620873113.7 discloses a bellows pressure test tool for aviation welding,

the four fixing screws are screwed alternately through the conical surface boss for positioning, the pressure is gradually increased through the air source until the required pressure is reached, whether the sealing is judged by observing whether the welding position of the straight corrugated pipe is leaked or not through the four notches on the fixed upper seat and the fixed lower seat, obviously, the testing mode is rough, the precision is poor, and the leakage cannot be observed under the unobvious condition.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the above-mentioned prior art, the utility model provides a bellows detection device through install sealing device additional at the bellows opening that awaits measuring and will await measuring the bellows and arrange the liquid level in under, can clearly distinguish whether the bellows leaks gas and further judge whether qualified, the convenient detection bellows directly perceived.

The utility model provides a technical scheme that its technical problem adopted is:

a corrugated pipe detection device comprises a water tank, a hydraulic station and an air pressure station, wherein the hydraulic station and the air pressure station are arranged on one side of the water tank, the water tank is an open water tank, liquid is filled in the water tank, a corrugated pipe to be detected is also placed in the water tank, and the corrugated pipe to be detected is settled below the liquid level;

the opening part of the bellows that awaits measuring still is provided with sealing device, sealing device includes left sealed lid and right sealed lid, the opening tip at the bellows that awaits measuring is fixed to left sealed lid and right sealed lid centre gripping respectively, left sealed lid and right sealed internally mounted have the sealed piece that is used for sealed bellows that awaits measuring, keep away from bellows that awaits measuring one side in the sealed lid of a left side and still install the hydro-cylinder that feeds through the hydraulic pressure station, the hydro-cylinder promotes left sealed lid lateral shifting.

Further, the left sealing cover and the right sealing cover are installed on two sides of the bellows to be tested and then are connected through the connecting piece in a matched mode to achieve preliminary fixing of the left sealing cover and the right sealing cover.

Preferably, the sealing block in the left sealing cover is of a rubber block structure, the sealing block in the right sealing cover is of a rubber block structure, and a groove convenient for sealing the corrugated pipe orifice is arranged on the sealing block corresponding to the pipe orifice of the corrugated pipe to be tested.

Preferably, the connecting piece is a long thread screw structure which can penetrate through holes on the outer circles of the left and right sealing covers and realizes the relative fixation of the left and right sealing covers by using nuts.

The hydraulic station is communicated with the sealing device through a hydraulic pipeline, a hydraulic pump is installed above the hydraulic station, and the hydraulic station is communicated with the oil cylinder through the hydraulic pump to realize transverse movement of the oil cylinder pushing sealing block.

Furthermore, the oil cylinder is of an oil cylinder group structure, the oil cylinder group is of a double-cylinder or four-cylinder structure which are symmetrically distributed, and the middle part of the oil cylinder group is of a hollow structure for the air pressure pipeline to penetrate through.

The utility model discloses a bellows that awaits measuring, including left side sealed lid, air pressure station, bellows that awaits measuring, air pressure station and the bellows that awaits measuring communicate through the air pressure pipeline, the middle part of the sealed inside seal piece of left side lid sets up to the through-hole structure that can cooperate the air pressure pipeline to pass and keep the gas tightness, the air pressure pipeline passes and stretches into inside the bellows that awaits measuring after the seal piece.

Furthermore, a box dividing structure used for controlling communication or cutoff of the hydraulic pipeline in emergency is installed above the air pressure station, and a manual stop valve is installed on the hydraulic pipeline in the box dividing structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a through install sealing device additional and will await measuring the bellows opening and arrange the bellows that awaits measuring in under the liquid level, can clearly distinguish whether the bellows leaks gas and further judge whether qualified, the convenient airtight condition of observation bellows directly perceived.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the device comprises a water tank, 2, a hydraulic station, 3, a hydraulic pump, 4, a sub-box, 5, an air pressure station, 6, a left sealing cover, 7, a right sealing cover, 8, an oil cylinder, 9, a sealing block, 10, a conical groove, 11, a corrugated pipe to be tested, 12, a long screw, 13 and water.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Example one

As shown in fig. 1, the utility model discloses a bellows detection device, including water tank 1 and install hydraulic pressure station 2 and atmospheric pressure station 5 in 1 one side of water tank, water tank 1 is open water tank, is full of liquid in the water tank 1, the bellows 11 that await measuring has still been placed in the water tank 1, the bellows 11 that await measuring subsides in the liquid level below, 1 lower extreme of water tank still is provided with the drain valve that is used for the drainage, hydraulic pressure station 2 and 5 integrations in pneumatic pressure station are installed on the water tank outer wall for detection device overall structure coordinates, convenient to overhaul.

The opening part of the bellows 11 that awaits measuring still is provided with sealing device, sealing device includes the sealed lid 7 of left side sealed 6 and right side, the sealed lid 7 of left side sealed 6 and right side centre gripping respectively fixes the opening tip at the bellows 11 that awaits measuring, the sealed lid 7 internally mounted of left side sealed 6 and right side has the sealed piece 9 that is used for the sealed bellows 11 that awaits measuring, keep away from the bellows 11 one side that awaits measuring in the sealed lid 6 of left side and still install the hydro-cylinder 8 that feeds through hydraulic pressure station 2, hydro-cylinder 8 promotes the sealed lid 6 lateral shifting of left side, and the during operation drives hydraulic pump 3 through hydraulic pressure station 2, because hydraulic pump 3 is connected with hydro-cylinder 8 through hydraulic pressure pipeline, hydro-cylinder 8 can promote sealed piece 9 and remove and push up.

Further, the sealed lid 7 of left side is installed and is connected the preliminary fixed of sealing lid about realizing through connecting piece 12 cooperation behind the both sides of the bellows 11 that awaits measuring through the sealed lid of right side 6, and the sealed lid of left side in this embodiment is circular end cover structure with the sealed lid of right side, and the end cover circumference equipartition has four at least through-holes that are used for erection joint spare, the connecting piece 12 is for can passing about the sealed hole on the excircle of lid and use the nut to realize about the sealed long screw rod structure of lid relatively fixed, the long screw rod passes about and fixes with the nut screwing behind the end cover through-hole, carries on.

Preferably, the sealing block 9 in the left sealing cover 6 is of a rubber block structure, the sealing block 9 in the right sealing cover is of a rubber block structure, a groove convenient for sealing the orifice of the corrugated pipe is arranged on the sealing block 9 corresponding to the orifice of the corrugated pipe 11 to be tested, the rubber block tightly pushes the orifice of the corrugated pipe to be tested under the action of the hydraulic oil cylinder, and the sealing of the corrugated pipe to be tested is realized by matching with the connecting piece 12.

The hydraulic station 2 is communicated with a sealing device through a hydraulic pipeline, a hydraulic pump 3 is installed above the hydraulic station 2, and the hydraulic station 2 is communicated with an oil cylinder 8 through the hydraulic pump 3 to realize that the oil cylinder 8 pushes a sealing block to move transversely.

Further, the oil cylinder 8 is of an oil cylinder group structure, the oil cylinder group is of a double-cylinder structure or a four-cylinder structure which are symmetrically distributed, the middle of the oil cylinder group is of a hollow structure used for the air pressure pipeline to penetrate, and the air pressure pipeline port penetrates through the oil cylinder group to extend into the bellows to be tested 11, so that the inner portion of the bellows to be tested 11 is inflated and pressurized.

Atmospheric pressure station 5 is through atmospheric pressure pipeline and 11 inside intercommunications of bellows that await measuring, atmospheric pressure station 5 and 11 through atmospheric pressure pipeline intercommunications of bellows that await measuring, the middle part of the sealed 6 inside seal pieces of left side sets up to the through-hole structure that can cooperate the atmospheric pressure pipeline to pass and keep the gas tightness, the atmospheric pressure pipeline stretches into inside the bellows 11 that await measuring after passing sealed piece, be provided with the through-hole that is used for the atmospheric pressure pipeline to pass on the sealed piece, the aperture slightly is less than the external diameter of pipeline, because sealed piece is the rubber materials preparation for the pipeline outer wall closely laminates the pore wall and realizes that the junction.

Further, the branch box 4 structure that is used for controlling hydraulic pressure pipeline intercommunication or cuts under the emergency is installed to the top of atmospheric pressure station 5, installs manual stop valve on the hydraulic pressure pipeline in the branch box, installs the stop valve additional and makes this device have dual fail-safe structure to fail the manual damage that leads to the fact the bellows that can not block hydraulic pressure pipeline in case electronic controller during the test.

When the device is used:

1. firstly, movably placing a corrugated pipe 11 to be tested between a left sealing cover and a right sealing cover, and then mounting a long screw and a nut on the left sealing cover and the right sealing cover to realize the primary fixation of the corrugated pipe to be tested;

2. a controller of the hydraulic station 2 is controlled to pressurize the oil cylinder 8, and the oil cylinder 8 pushes a sealing block in the left sealing cover 6 to tightly abut against the port of the corrugated pipe after pressurization so as to realize sealing and fixing of the corrugated pipe;

3. a controller of the air pressure station 5 is controlled to inflate the bellows to the atmospheric pressure required by the working procedure through an air pressure pipeline and then close the air pressure station;

4. the water tank 1 is filled with clear water until the bellows to be tested is completely submerged (the metal bellows and the sealing device have heavier dead weight and cannot float upwards in water under the internal air pressure state required by the working condition), and the bellows surface is observed to see whether the air leakage condition exists.

5. And recording the detection data.

Example two

The atmospheric pressure station in above-mentioned embodiment uses the water pump to replace, and above-mentioned water tank 1 keeps anhydrous state when the bellows 11 that awaits measuring detects, stops the water injection when injecting water to the water pressure that the operating mode needs in the bellows through to airtight accurate state, observes the bellows outer wall condition that awaits measuring and also can judge whether qualified bellows that awaits measuring.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A corrugated pipe detection device is characterized by comprising a water tank, a hydraulic station and an air pressure station, wherein the hydraulic station and the air pressure station are arranged on one side of the water tank;

a sealing device is further arranged at the opening of the corrugated pipe to be tested;

the hydraulic station is communicated with the sealing device through a hydraulic pipeline;

the air pressure station is communicated with the interior of the corrugated pipe to be tested through an air pressure pipeline;

the sealing device comprises a left sealing cover and a right sealing cover, the left sealing cover and the right sealing cover are respectively clamped and fixed at the opening end part of the corrugated pipe to be tested, sealing blocks used for sealing the corrugated pipe to be tested are installed inside the left sealing cover and the right sealing cover, an oil cylinder communicated with a hydraulic station is further installed on one side, away from the corrugated pipe to be tested, in the left sealing cover, and the oil cylinder pushes the left sealing cover to move transversely; the left sealing cover and the right sealing cover are arranged on two sides of the corrugated pipe to be tested and then are connected in a matched mode through a connecting piece to realize primary fixing of the left sealing cover and the right sealing cover;

the connecting piece is a long thread screw rod structure which can penetrate through holes on the outer circles of the left sealing cover and the right sealing cover and realizes the relative fixation of the left sealing cover and the right sealing cover by using nuts;

the air pressure station is communicated with the bellows to be tested through an air pressure pipeline, the middle of the sealing block inside the left sealing cover is arranged to be a through hole structure which can be matched with the air pressure pipeline to penetrate through and keep air tightness, and the air pressure pipeline penetrates through the sealing block and then extends into the bellows to be tested.

2. The corrugated pipe detection device as claimed in claim 1, wherein a hydraulic pump is installed above the hydraulic station, and the hydraulic station realizes the transverse movement of the sealing block pushed by the oil cylinder through the communication between the hydraulic pump and the oil cylinder.

3. The bellows detection device of claim 2, wherein the cylinder is of a cylinder group structure, the cylinder groups are of a two-cylinder or four-cylinder structure symmetrically distributed with each other, and the middle part of the cylinder group is of a hollow structure for a pneumatic pipeline to pass through.

4. The corrugated pipe detection device according to claim 1, wherein a sub-box structure for controlling the communication or cut-off of the hydraulic pipeline in an emergency is installed above the air pressure station, and a manual stop valve is installed on the hydraulic pipeline in the sub-box.

5. The bellows test device of claim 1, wherein the sealing block in the left seal cap is a rubber block structure, and the sealing block in the right seal cap is a rubber block structure.

6. The corrugated pipe testing device according to claim 5, wherein the sealing block is provided with a groove for facilitating sealing of the corrugated pipe orifice corresponding to the position of the corrugated pipe orifice to be tested.