CN213516204U

CN213516204U - Pipe underwater air tightness detection device

Info

Publication number: CN213516204U
Application number: CN202022378037.1U
Authority: CN
Inventors: 胡省宪; 徐勇; 沈凌峰; 沈春锋
Original assignee: Shanghai Kunyong Energy Saving Technology Co ltd
Current assignee: Shanghai Kunyong Energy Saving Technology Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-06-22
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses a tubular product airtight check out test set under water relates to airtight check out test set technical field of tubular product, which comprises a frame, install the basin in the frame, install airtight detection piece on the basin, wherein, airtight detection piece is including suppressing the work or material rest, the lift piece, compress tightly piece and blind plate, it includes the driving piece to compress tightly the piece, the gas distribution metal block, a flexible seal board and a guide clamp plate, a plurality of gaseous reposition of redundant personnel passageways have evenly been seted up in the gas distribution metal block, one side of gas distribution metal block is equipped with the interface of aerifing, it is linked together with gaseous reposition of redundant personnel passageway to aerify the interface, all set up a plurality ofly on a flexible seal board and the first guide clamp plate and shunt passageway assorted through. The utility model discloses a set up mutually supporting on airtight detection spare and compress tightly piece and blind plate, can carry out airtight detection under water to many tubular products simultaneously to can also adapt to the operating condition that tubular product length has certain error, have detection efficiency and rate of accuracy height, convenient operation's effect.

Description

Pipe underwater air tightness detection device

Technical Field

The utility model relates to an airtight check out test set technical field of tubular product, more specifically say, it relates to a tubular product airtight check out test set under water.

Background

At present, the detection method for the stainless steel welded pipe generally comprises eddy current inspection, ultrasonic inspection, underwater air tightness and water pressure test, on-line eddy current inspection is generally adopted under the condition of no special requirement, the underwater air tightness belongs to a higher-level detection mode, the detection accuracy is high, and the detection efficiency is low. However, the inner-tooth stainless steel welded pipe has teeth on the inner surface, so that the inner-tooth stainless steel welded pipe does not have the conditions of eddy current inspection and ultrasonic inspection, can only use underwater airtight inspection, is commonly used in the air conditioning industry, and is characterized in that the pipe is short in length (between 1 and 3 meters) and large in number. In order to ensure the detection quality and efficiency, the underwater airtightness is required to be used as a detection mode, and in order to reduce the detection cost and improve the detection efficiency, the detection is carried out by adopting a mode of detecting dozens of tubes at a time.

However, the traditional underwater air tightness detection equipment is relatively thick due to the pressing of the joint, the pipe locking mode is troublesome, the condition of multi-joint arrangement is not provided, even if a plurality of chucks can be connected in parallel, the pipe distribution density is too low due to too large joints, and dozens of pipes are difficult to test at one time. The existing underwater air tightness detection equipment has the following problems: the operation is inconvenient when the pressing joint is butted and locked with the steel pipe to be pressed; the pressing connector has larger volume, and the arrangement width is too wide when a plurality of pipes are pressed at one time; when certain error exists in the length of the pipe, a part of shorter pipes are not firmly locked; the operation process is completely manual and too slow; or full automation is easy to cause misoperation.

Based on the above problem, need provide one kind and can once suppress many tubular products, can adapt to the operating condition that the pipe length has certain error and convenient operation's tubular product gas tightness check out test set under water.

SUMMERY OF THE UTILITY MODEL

To this problem in the practical application, the utility model aims to provide a tubular product airtight check out test set under water, concrete scheme is as follows:

an underwater air tightness detection device for pipes comprises a frame, wherein a water tank is arranged on the frame, an air tightness detection piece is arranged on the water tank, wherein,

the air tightness detection piece comprises a material pressing frame, a lifting piece for driving the material pressing frame to lift along the height direction of the material pressing frame, a pressing piece arranged at one end of the material pressing frame and a blind plate arranged at the other end of the material pressing frame, the pressing piece comprises a driving piece, a gas distribution metal block, a first flexible sealing plate arranged on one side of the gas distribution metal block and a first guide pressing plate covering the first flexible sealing plate, a plurality of gas distributing channels are uniformly arranged in the gas distributing metal block, one side of the gas distributing metal block is provided with an inflating interface, the inflation interface is communicated with the gas diversion channel, the first flexible sealing plate and the first guide pressure plate are both provided with a plurality of through holes matched with the gas diversion channel, the diameter of the pipe is smaller than that of the through hole formed in the first guide pressing plate.

Furthermore, the blind plate comprises an installation shell, a plurality of groups of spring pins, springs and pressure adjusting screws, a second flexible sealing plate, a second guide pressing plate and a rear pressing plate, wherein the spring pins, the springs and the pressure adjusting screws are installed in the installation shell, the second flexible sealing plate and the second guide pressing plate are installed on the front side of the installation shell, the rear pressing plate is installed on the rear side of the installation shell, a plurality of guide holes are uniformly formed in the second guide pressing plate, and the second guide pressing plate faces the pressing piece.

Furthermore, a plurality of positioning blocks are evenly arranged between the pressing piece and the blind plate on the pressing frame, and a plurality of positioning grooves are formed in each positioning block.

Furthermore, a pressurizing head and a guide post are arranged between the driving piece and the gas distribution metal block, the output end of the driving piece is connected with the pressurizing head, and the guide post penetrates through the pressurizing head and extends into the gas distribution metal block.

Furthermore, the lifting piece is installed on the rack, the output end of the lifting piece is connected with a connecting plate, the other end of the connecting plate is installed on the pressing material rack, and the lifting piece is respectively arranged at two ends of the air tightness detection piece.

Furthermore, the frame is formed by combining a front frame and a rear frame, the air tightness detection piece is installed on the front frame, the height of the front frame is smaller than that of the rear frame, and an ejector rod of the rear frame is in an inclined state.

Furthermore, four corners of the bottom of the rack are provided with adjustable feet.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses in, through set up on airtight detection spare that compresses tightly of mutually supporting and blind plate, can carry out airtight detection under water to many tubular products simultaneously, detection efficiency is high to can also adapt to the operating condition that tubular product length has certain error, application scope is wide, convenient operation, and the detection rate of accuracy is high.

Drawings

Fig. 1 is an overall schematic view of an embodiment of the present invention;

FIG. 2 is a perspective view of the air tightness detecting member and the water tank of the present invention;

FIG. 3 is a front view of the air tightness detecting member and the water tank of the present invention;

fig. 4 is a cross-sectional view taken along line a-a of fig. 3 in accordance with the present invention;

fig. 5 is a schematic structural view of the middle blind plate of the present invention;

fig. 6 is a side view of the middle blind plate of the present invention;

fig. 7 is a cross-sectional view taken along line B-B of fig. 6 in accordance with the present invention;

fig. 8 is a cross-sectional view taken along line C-C of fig. 6 in accordance with the present invention;

fig. 9 is a side view of a compression member of the present invention;

fig. 10 is a cross-sectional view taken along line D-D of fig. 9 in accordance with the present invention;

fig. 11 is a side view of the center frame of the present invention.

Reference numerals: 1. a frame; 11. a front frame; 12. a rear frame; 2. a water tank; 3. an air-tightness detecting member; 31. pressing the material frame; 32. a lifting member; 33. a compression member; 34. a drive member; 35. a gas distribution metal block; 36. a first flexible sealing plate; 37. a first guide platen; 38. a gas diversion channel; 39. an inflation interface; 310. a through hole; 311. pressing a head; 312. a guide post; 4. a blind plate; 41. installing a shell; 42. a spring pin; 43. a spring; 44. a pressure adjusting screw; 45. a second flexible sealing plate; 46. a second guide platen; 47. a rear pressing plate; 48. a guide hole; 5. positioning blocks; 6. positioning a groove; 7. a connecting plate; 8. and (5) ground feet.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

As shown in figure 1, a pipe airtightness detection device under water comprises a rack 1, wherein a water tank 2 is installed on the rack 1, an airtightness detection piece 3 is installed on the water tank 2, the airtightness detection piece 3 is used for realizing the compression and relaxation of the pipe, the pipe is lifted to enter or separate from the water tank 2, and the pipe is inflated and deflated to realize the airtightness detection of the pipe.

Specifically, in one possible embodiment, as shown in fig. 2 to 4, the air-tightness detecting member 3 includes a pressing member 31, and a lifting member 32 for driving the pressing member 31 to lift in the height direction thereof. The lifting piece 32 is installed on the frame 1, the output end of the lifting piece 32 is connected with the connecting plate 7, the other end of the connecting plate 7 is installed on the pressing material frame 31, and the lifting piece 32 is respectively arranged at two ends of the air tightness detection piece 3. Preferably, the lifting member 32 is a lifting cylinder. The lifting cylinder is used for driving the pressing frame 31 to lift along the height direction of the pressing frame so as to enable the pressing frame 31 to enter or separate from the water tank 2.

The air tightness detecting piece 3 further comprises a pressing piece 33 arranged at one end of the pressing frame 31 and a blind plate 4 arranged at the other end of the pressing frame 31. The pressing piece 33 and the blind plate 4 are mutually matched to realize the pressing of a plurality of pipes.

Specifically, in one possible embodiment, as shown in fig. 9-10, the compressing member 33 includes a driving member 34, a gas distribution metal block 35, a first flexible sealing plate 36 mounted on one side of the gas distribution metal block 35, and a first guide pressure plate 37 covering the first flexible sealing plate 36. Preferably, the driving member 34 is a driving cylinder.

A plurality of gas distributing channels 38 are uniformly arranged in the gas distributing metal block 35, an inflation interface 39 is arranged on one side of the gas distributing metal block 35, the inflation interface 39 is communicated with the gas distributing channels 38, and an outer port of the inflation interface 39 is communicated with a gas source. The first flexible sealing plate 36 and the first guiding pressing plate 37 are both provided with a plurality of through holes 310 matched with the gas diversion channel 38, and the diameter of the pipe is smaller than that of the through holes 310 arranged on the first guiding pressing plate 37. Preferably, the first flexible sealing plate 36 is made of a rubber plate or the like, and the first guide platen 37 is made of a metal.

A pressurizing head 311 and a guide column 312 are arranged between the driving piece 34 and the gas distribution metal block 35, the output end of the driving piece 34 is connected with the pressurizing head 311, and the guide column 312 penetrates through the pressurizing head 311 and extends into the gas distribution metal block 35. Preferably, a stopper is disposed on an end of the guide post 312 away from the gas distribution metal block 35 to limit the guide post 312 from being separated from the pressurizing head 311 or the gas distribution metal block 35.

The pressing piece 33 is used for fixing one end of the pipe, the blind plates 4 are arranged in a matched mode in order to guarantee stability of two ends of the pipe, and the blind plates 4 are used for fixing the other end of the pipe.

Specifically, in one possible embodiment, as shown in fig. 5 to 8, the blind plate 4 includes a mounting housing 41, a plurality of sets of spring pins 42 mounted in the mounting housing 41, springs 43 and pressure adjusting screws 44, a second flexible sealing plate 45 mounted on the front side of the mounting housing 41, a second guiding pressure plate 46, and a rear pressure plate 47 mounted on the rear side of the mounting housing 41, wherein the guiding pressure plate has a plurality of guiding holes 48 uniformly formed thereon, and the second guiding pressure plate 46 faces the pressing member 33. Similarly, the second flexible sealing plate 45 is preferably made of rubber, and the second guide platen 46 is preferably made of metal.

One end of the spring pin 42 is in contact with one side of the second flexible sealing plate 45, the other end of the spring pin 42 is provided with a spring 43, and the spring 43 and the spring pin 42 are both positioned in the mounting shell 41; the pressure adjustment screw 44 is located outside the mounting case 41, and has one end penetrating the rear pressure plate 47 and abutting against the spring 43.

A plurality of positioning blocks 5 are uniformly arranged between the pressing piece 33 and the blind plate 4 on the pressing rack 31, and a plurality of positioning grooves 6 are formed in each positioning block 5. Preferably, three positioning blocks 5 are provided.

In addition, it should be noted that, because the present invention discloses a plurality of gas diversion channels 38, through holes 310 on the compressing member 33, and a plurality of guiding holes 48 on the blind plate 4, corresponding to each other in the horizontal direction, so as to compress and fix the pipe, and the number of the gas diversion channels 38, through holes 310 and guiding holes 48 can be determined according to the implementation, preferably, the number thereof is set to 10.

As shown in fig. 11, the rack 1 is formed by combining a front frame 11 and a rear frame 12, the air-tightness detecting member 3 is mounted on the front frame 11, and the height of the front frame 11 is smaller than that of the rear frame 12. The top bar of the rear frame 12 is inclined, that is, the height of the top bar of the rear frame 12 gradually decreases from the direction away from the front frame 11 to the direction close to the front frame 11. During the use, tubular product can be placed on the ejector pin that is the tilt state at back frame 12, when carrying out airtight detection, tubular product can freely roll and fall to the airtight detection piece 3 that sets up on the front truck 11 on, the operation of being convenient for.

Four corners of the bottom of the frame 1 are provided with adjustable feet 8. Specifically, but lower margin 8 can be established to the height-adjusting's that telescopic link and supporting baseplate combination formed structure to guarantee to adjust the height of whole frame 1, satisfy different in-service use demands.

The utility model discloses a concrete implementation principle does: when the device works, firstly, a pipe is placed on the airtight detection piece 3, one end of the pipe is aligned to the pressing piece 33, the other end of the pipe is aligned to the blind plate 4, the pipe penetrates through the positioning block 5 and is limited in the positioning groove 6, then the pipe is pressed under the mutual matching of the pressing piece 33 and the blind plate 4, specifically, one end of the pipe is positioned in the through hole 310, the other end of the pipe is positioned in the guide hole 48, the driving piece 34 works to push the pressing head 311 to move, and simultaneously push the gas distribution metal block 35, the first flexible sealing plate 36 and the first guide pressing plate 37 to move, because the diameter of the pipe is smaller than that of the through hole 310 formed on the first guide pressing plate 37, the pipe penetrates through the first guide pressing plate 37 to the first flexible sealing plate 36 until the pipe tightly presses the first flexible sealing plate 36, and meanwhile, the other end of the pipe penetrates through the second guide pressing plate 46 and is contacted with the, when the lengths of a plurality of pipes are unequal, the pressure adjusting screws 44 are screwed in or out to extrude or release the springs 43 so as to flexibly change the positions of the spring pins 42, so that when the pipes extrude the spring pins 42 through the second flexible sealing plates 45, the length deviation of plus or minus 5mm of the pipes can be met, constant pressing force can still be kept, after the pipe pressing is completed, the whole pressing rack 31 is driven to descend into the water tank 2 under the driving action of the lifting piece 32, namely, the pressed pipes are driven to enter the water tank 2, finally, the gas source supplies gas into the gas distribution channel 38 from the gas charging interface 39, the detection gas simultaneously enters each pipe after passing through the gas distribution channel 38 and the through holes 310, the simultaneous airtight detection of the plurality of pipes is realized, after the airtight detection is completed, the lifting piece 32 drives the pressing rack 31 to ascend and separate from the water tank 2, and the pressing piece 33 releases the pipes, the tubular product is taken down, the airtight detection of tubular product can be accomplished, in whole testing process, tubular product compresses tightly relaxedly, work or material rest lift and tubular product are aerifyd the gassing and all adopt semi-automatic operation, every action all is by a switch manual control, whole tubular product airtight check out test set under water, can high efficiency carry out airtight detection under water simultaneously to many tubular products in the design range to can adapt to the unequal simultaneous detection of tubular product of length, convenient operation, detection efficiency is high, equipment cost and whole small.

In addition, it should be noted that, when the length of the pipe is long, in order to prevent the pipe from being extruded and bent in the compressing process, an upper compressing device and a lower compressing device may be further added according to actual conditions to perform upper and lower compressing actions in the compressing process of the pipe, and for the specific structure of the upper compressing device and the lower compressing device, the specific structure may be implemented by using technologies such as a pressure increasing and reducing plate in the prior art, which is not described herein again.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The underwater pipe airtightness detection device is characterized by comprising a rack (1), wherein a water tank (2) is arranged on the rack (1), an airtightness detection piece (3) is arranged on the water tank (2),

the airtight detection piece (3) comprises a pressing rack (31), a lifting piece (32) for driving the pressing rack (31) to lift along the height direction of the pressing rack (31), a pressing piece (33) installed at one end of the pressing rack (31) and a blind plate (4) installed at the other end of the pressing rack (31), wherein the pressing piece (33) comprises a driving piece (34), a gas distribution metal block (35), a first flexible sealing plate (36) installed at one side of the gas distribution metal block (35) and a first guide pressing plate (37) covering the first flexible sealing plate (36), a plurality of gas distribution channels (38) are uniformly formed in the gas distribution metal block (35), an inflation interface (39) is arranged at one side of the gas distribution metal block (35), the inflation interface (39) is communicated with the gas distribution channels (38), and the first flexible sealing plate (36) and the first guide pressing plate (37) are respectively provided with a plurality of gas distribution channels The diameter of the pipe is smaller than that of the through hole (310) formed in the first guide pressing plate (37).

2. The underwater pipe airtightness detection apparatus according to claim 1, wherein the blind plate (4) comprises a mounting housing (41), a plurality of sets of spring pins (42), springs (43) and pressure adjusting screws (44) mounted in the mounting housing (41), a second flexible sealing plate (45) mounted on a front side of the mounting housing (41), a second guide pressure plate (46), and a rear pressure plate (47) mounted on a rear side of the mounting housing (41), wherein a plurality of guide holes (48) are uniformly formed in the second guide pressure plate (46), and the second guide pressure plate (46) faces the pressing member (33).

3. The underwater pipe airtightness detection apparatus according to claim 1, wherein a plurality of positioning blocks (5) are uniformly arranged on the pressing rack (31) between the pressing member (33) and the blind plate (4), and each positioning block (5) is provided with a plurality of positioning grooves (6).

4. The pipe underwater airtightness detection apparatus according to claim 1, wherein an indenter (311) and a guide post (312) are provided between the driving member (34) and the gas distribution metal block (35), an output end of the driving member (34) is connected to the indenter (311), and the guide post (312) penetrates the indenter (311) and extends into the gas distribution metal block (35).

5. The underwater pipe airtightness detection apparatus according to claim 1, wherein the lifting member (32) is mounted on the frame (1), an output end of the lifting member (32) is connected with a connection plate (7), the other end of the connection plate (7) is mounted on the pressing frame (31), and the lifting member (32) is respectively disposed at two ends of the airtightness detection member (3).

6. The underwater pipe airtightness detection apparatus according to claim 1, wherein the machine frame (1) is formed by combining a front frame (11) and a rear frame (12), the airtightness detection member (3) is mounted on the front frame (11), the height of the front frame (11) is smaller than that of the rear frame (12), and a top rod of the rear frame (12) is in an inclined state.

7. The underwater pipe airtightness detection apparatus according to claim 1, wherein adjustable feet (8) are provided at four corners of the bottom of the machine frame (1).