CN113418665A - Air tightness detection equipment for connecting pipe - Google Patents
Air tightness detection equipment for connecting pipe Download PDFInfo
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- CN113418665A CN113418665A CN202110972679.0A CN202110972679A CN113418665A CN 113418665 A CN113418665 A CN 113418665A CN 202110972679 A CN202110972679 A CN 202110972679A CN 113418665 A CN113418665 A CN 113418665A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
Abstract
The invention belongs to the technical field of pipeline detection, and particularly relates to air tightness detection equipment for a connecting pipe, which comprises a supporting plate, a holding component and two groups of detection components, wherein the holding component and the two groups of detection components are arranged on the supporting plate, an air outlet of a detection electromagnetic valve of each detection component is connected with one port of a detection tee joint through an air pipe, the second port of the detection tee joint is connected with a barometer, a detection outer cylinder is connected to an air cylinder push rod of a detection air cylinder, a long hole is formed in the detection outer cylinder, an interface is formed in the detection inner cylinder, a detection spring and the detection inner cylinder are sequentially arranged in the detection outer cylinder, a detection straight joint penetrates through the long hole in the detection outer cylinder and is connected with the interface on the detection inner cylinder, a long connecting pipe is arranged at one end, away from the detection spring, of the detection inner cylinder, penetrates through the other end of the detection outer cylinder, and a third port of the detection tee joint is connected with the detection straight joint through the air pipe. The invention realizes the automatic detection of the air tightness of the connecting pipe and improves the detection quality.
Description
Technical Field
The invention belongs to the technical field of pipeline detection, and particularly relates to air tightness detection equipment for a connecting pipe.
Background
Connecting tubes are widely used in the medical field, and are used more frequently in cardiology, interventional department, anesthetic, ICU. The connection tube is used for connecting other components such as a catheter and a high-pressure syringe when injecting a medicine, a liquid, or a contrast medium into a patient.
A typical connection tube consists of three parts: a conduit, an outer conical joint and an inner conical joint. The existing assembly method of the connecting pipe is to bond by workers manually, and check the air tightness after curing, and the detection method used at present is as follows: firstly, plugging the outer cone joint, and then connecting the inner cone joint with an air pipe with the same barometer; adding air pressure, standing for 10S, and judging whether the value of the barometer is stabilized in an expected value range; then the inner cone joint is plugged, and the outer cone joint is connected with another air pipe with the same air pressure meter; and (5) adding air pressure, standing for 10S, and judging whether the value of the air pressure meter is stabilized in the expected value range. The operation is complicated, the possibility of inaccurate detection data is caused due to improper manual operation, and the working efficiency is relatively low.
Disclosure of Invention
In order to solve the technical problem, the invention provides air tightness detection equipment for a connecting pipe, which realizes automatic detection of air tightness.
The invention is realized in such a way that the air tightness detection device of the connecting pipe comprises a supporting plate, a holding component and two groups of detection components, wherein the holding component and the two groups of detection components are arranged on the supporting plate, each group of detection components comprises a detection solenoid valve, a detection tee joint, a barometer, a detection cylinder, a detection outer cylinder, a detection inner cylinder, a detection spring and a detection straight joint, an air outlet of the detection solenoid valve is connected with one port of the detection tee joint through an air pipe, a second port of the detection tee joint is connected with the barometer, the detection outer cylinder is connected with a cylinder push rod of the detection cylinder, the detection outer cylinder is provided with a long hole, the detection inner cylinder is provided with a port, the detection spring and the detection inner cylinder are sequentially arranged in the detection outer cylinder, the detection straight joint penetrates through the long hole in the detection outer cylinder and is connected with the port in the detection inner cylinder, one end of the detection inner cylinder, which is far away from the detection spring, is provided with a long connecting pipe, and penetrates through the other end of the detection outer cylinder, the third port of the detection tee joint is connected with the detection straight joint through an air pipe.
Preferably, the holding assembly comprises a holding support, a holding cylinder, a holding clamping cylinder and holding claws, the holding cylinder is arranged on the holding support, a cylinder push rod of the holding cylinder is connected with the two holding clamping cylinders, and cylinder push rods of the two holding clamping cylinders are respectively connected with a group of holding claws; the two groups of holding claws are respectively positioned at the front upper parts of the long connecting pipes on the two detection inner cylinders.
Preferably, the air tightness detection device further comprises a clamping mechanism and a push-up mechanism which are arranged on the supporting plate, the clamping mechanism is arranged on the supporting plate on one side, away from the two groups of detection components, of the two groups of holding claws, and the push-up mechanism is arranged below the supporting plate and corresponds to the clamping mechanism up and down;
fixture includes grip block I, grip block II, grip block and two centre gripping guide pillars, grip block I is fixed in the backup pad, the grip block upper end is fixed at II middle parts of grip block, the lower extreme passes grip block I and backup pad in proper order to be equipped with the one end that compression spring cup jointed at the grip block, compression spring one end is connected at the backup pad lower surface, the lower extreme fixed connection of the other end and grip block, two centre gripping guide pillar upper ends are fixed respectively at the both ends of grip block II, the lower extreme passes grip block I and backup pad in proper order.
Preferably, the upper surface of the clamping block I and the two sides of the clamping column are respectively provided with a lower clamping block, and the lower surface of the clamping block II and the two sides of the clamping column are respectively provided with an upper clamping block.
Further preferably, the push-up mechanism comprises a push-up cylinder, a push-up plate and a push-up support, a cylinder push rod at the upper end of the push-up cylinder is connected with the push-up plate, and the push-up cylinder is arranged on the push-up support.
Further preferably, the device also comprises a detection air throttle, and the detection air throttle is connected with an air inlet of the detection electromagnetic valve through an air pipe.
Preferably, a barometer connecting joint is arranged on the barometer and is connected with the detection tee joint through an air pipe.
Further preferably, an air port connecting pipe is arranged on the long connecting pipe of the detection inner cylinder, and a detection silica gel pad is arranged on the air port connecting pipe.
Compared with the prior art, the invention has the advantages that:
1. the automatic detection of the air tightness of the connecting pipe is realized, the operation of workers is simple and convenient, and frequent manual connection of the air cylinder is not needed
2. Because the connection modes of the outer cone joint and the inner cone joint are different, staff need to replace different air pressure detection equipment during manual detection, and the air tightness can be detected once without replacing the air pressure equipment by the equipment;
3. the detection error possibility of the staff caused by manual operation is reduced;
4. the working efficiency is improved.
Drawings
FIG. 1 is a view showing a structure of a connection pipe;
FIG. 2 is a view showing the overall positional relationship between the holding member and the detecting member;
FIG. 3 is a perspective view of one view of the detection assembly;
FIG. 4 is a perspective view of another perspective of the detection assembly;
FIG. 5 is a view of the overall explosion structure of the detection assembly;
FIG. 6 is an overall view of the handle;
FIG. 7 is an overall view of the clamping mechanism;
FIG. 8 is an exploded view of the clamping mechanism as a whole;
FIG. 9 is an overall view of the push-up mechanism;
FIG. 10 is an overall view of the airtightness detection mechanism according to the present invention;
in the figure: 1-detecting the electromagnetic valve; 2-detecting the tee joint; 3-a barometer; 4-detecting the cylinder; 5, detecting the outer cylinder; 6, detecting the inner cylinder; 7-detecting the spring; 8-detecting a straight joint; 9-holding the cylinder; 10-holding clamping cylinder; 11-a holding claw; 12-a support plate; 13-clamping block I; 14-a clamping block II; 15-clamping the column; 16-clamping the guide pillar; 17-a compression spring; 18-clamping the lower block; 19-clamping the upper block; 20-pushing up the cylinder; 21-push plate; 22-push up the support; 23-detecting the air throttle; 24-a barometer connecting joint; 25-detecting the silica gel pad; 26-a grip plate; 27-holding the bracket I; 28-holding the bracket II; 29-detecting the connection board; 30-barometer support; 31-detecting the cylinder holder; 32-a catheter; 33-inner cone joint; 34-outer cone joint; 35-a holding component; 36-a detection component; 37-a clamping mechanism; 38-push-up mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail 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.
Referring to fig. 1, 2, 3, 4 and 5, the present invention provides an air tightness detecting device for a connecting pipe, in this embodiment, the connecting pipe includes a conduit 32, an inner conical joint 33 and an outer conical joint 34 connected to two ends of the conduit 32, the air tightness detecting device includes a support plate 12, a holding component 35 and two sets of detecting components 36 arranged on the support plate 12, each set of detecting components 36 includes a detecting electromagnetic valve 1, a detecting tee 2, a barometer 3, a detecting cylinder 4, a detecting outer cylinder 5, a detecting inner cylinder 6, a detecting spring 7 and a detecting straight joint 8, an air outlet of the detecting electromagnetic valve 1 is connected with one port of the detecting tee 2 through an air pipe, a second port of the detecting tee 2 is connected with the barometer 3, the detecting outer cylinder 5 is connected to a cylinder pushing rod of the detecting cylinder 4, the detecting outer cylinder 5 is provided with a long hole, the detecting inner cylinder 6 is provided with a port, the detection spring 7 and the detection inner cylinder 6 are sequentially installed inside the detection outer cylinder 5, the detection straight joint 8 penetrates through a long hole in the detection outer cylinder 5 and is connected with an interface on the detection inner cylinder 6, a long connecting pipe is arranged at one end, far away from the detection spring 7, of the detection inner cylinder 6 and penetrates through the other end of the detection outer cylinder 5, a third port of the detection tee joint 2 is connected with the detection straight joint 8 through an air pipe, the detection electromagnetic valve 1 and the detection tee joint 2 are communicated with an inner cavity of the detection inner cylinder 6 through the air pipes, and the air pressure gauge 3 is communicated with the inner cavity of the detection inner cylinder 6.
When the connecting pipe is subjected to air tightness detection, the holding component 35 grasps the outer conical joint 34 and the inner conical joint 33 of the connecting pipe, the detection cylinders 4 of the two groups of detection components 36 push the detection outer cylinder 5, the detection inner cylinder 6 extends into the outer conical joint 34 and the inner conical joint 33 of the connecting pipe, the detection inner cylinder 6 is pushed to compress the detection spring 7 backwards in the detection outer cylinder 5, the thrust of the detection spring 7 enables the long connecting pipe to be tightly attached to the outer conical joint 34 and the inner conical joint 33, and then the test can be started. Firstly, the detection solenoid valve 1 of one group of detection components 36 works, the detection solenoid valve 1 of the other group of detection components 36 does not work, whether the numerical values of the two barometers 3 reach expectation is observed, if the numerical values of the two barometers 3 reach expectation, the inner cavities of the connecting pipes are communicated, and no leakage exists; if the numerical value of the barometer 3 does not reach the expectation, the connecting pipe is indicated to have leakage; if the numerical values of the two barometers 3 are greatly different, the blockage in the connecting pipe is indicated, and the first round of detection is completed; then, carrying out a second round of detection, closing the detection electromagnetic valve 1 working in the first round of detection, opening the detection electromagnetic valve 1 closed in the first round of detection, and repeating the detection process of the first round of detection; and after the second round of detection is finished, the detection cylinder 4 is withdrawn, and the detection of air tightness is finished.
Referring to fig. 6, the holding assembly 35 includes a holding bracket, a holding cylinder 9, a holding clamping cylinder 10 and holding claws 11, the holding cylinder 9 is disposed on the holding bracket, a cylinder push rod of the holding cylinder 9 is connected with two holding clamping cylinders 10, and cylinder push rods of the two holding clamping cylinders 10 are respectively connected with a set of holding claws 11; the two groups of holding claws 11 are respectively positioned at the front upper part of the long connecting pipe on the two detection inner cylinders 6. In the present invention, the end of the detection assembly 36 where the detection inner barrel is provided is "front".
The cylinder push rod of the holding cylinder 9 is connected with the two holding clamping cylinders 10 through the holding plate 26, in the process that the holding assembly 35 holds the outer conical joint 34 and the inner conical joint 33, the holding cylinder 9 pushes the two holding clamping cylinders 10 to move downwards, after the positions are reached, the two holding clamping cylinders 10 control the holding claws 11 connected with each other to separate, after the outer conical joint 34 and the inner conical joint 33 enter the two holding claws 11, the two holding clamping cylinders 10 control the holding claws 11 connected with each other to approach and clamp, and the holding of the outer conical joint 34 and the inner conical joint 33 is completed.
The holding support comprises a holding support I27 and a holding support II 28, the holding support I27 is vertically arranged, one end of the holding support II 28 is connected to the upper end of the holding support I27, and the other end of the holding support II 28 is connected with the holding cylinder 9.
In order to facilitate the holding component 35 to hold the connecting pipe, as an improvement of the technical solution, referring to fig. 7, 8 and 9, the air tightness detecting apparatus further includes a clamping mechanism 37 and a pushing-up mechanism 38 which are arranged on the supporting plate 12, the clamping mechanism 37 is arranged on the supporting plate 12 on the side of the two groups of holding claws 11 away from the two groups of detecting components 36, and the pushing-up mechanism 38 is arranged below the supporting plate 12 and corresponds to the clamping mechanism 37 up and down;
When the clamping mechanism 37 is required to clamp the conduit 32, the clamping block II 14 is jacked up by pushing the two clamping guide columns 16, a gap is formed between the clamping block II 14 and the clamping block I13, an operator places the conduit 32 on the clamping block I13, and after the clamping guide columns 16 are loosened, a downward pushing force is given to the clamping columns 15 due to the fact that the compression springs 17 are always in a compression state, so that the clamping block II 14 tends to be close to the clamping block I13, and the conduit 32 is clamped tightly.
In order to have better clamping stability, the upper surface of the clamping block I13 and two sides of the clamping column 15 are respectively provided with a clamping lower block 18, the lower surface of the clamping block II 14 and two sides of the clamping column 15 are respectively provided with a clamping upper block 19, an arc-shaped groove is formed in the clamping lower block 18, a pressing block is arranged at the corresponding position of the clamping upper block 19, and the arc-shaped groove is formed in the pressing block, so that the catheter 32 can be conveniently positioned.
Referring to fig. 9, the push-up mechanism 38 includes a push-up cylinder 20, a push-up plate 21 and a push-up bracket 22, wherein a cylinder push rod at the upper end of the push-up cylinder 20 is connected with the push-up plate 21, and the push-up cylinder 20 is arranged on the push-up bracket 22.
The push-up mechanism 38 is provided to automatically open and clamp the gripping mechanism 37 during the gripping of the conduit 32 by the gripping mechanism 37. In the working process of the push-up mechanism 38, the push-up cylinder 20 pushes the push-up plate 21, the push-up plate 21 is in contact with the two clamping guide pillars 16, the two clamping guide pillars 16 push the clamping block II 14 to be away from the clamping block II 14, a gap is formed between the clamping block I13 and the clamping block II 14, and then the conduit 32 can be placed or taken out.
In order to adjust the air intake, as the improvement of the technical scheme, the air intake adjusting device further comprises a detection throttle valve 23, and the detection throttle valve 23 is connected with the air inlet of the detection electromagnetic valve 1 through an air pipe.
In order to facilitate connection, as an improvement of the technical scheme, an air pressure meter connecting joint 24 is arranged on the air pressure meter 3, and the air pressure meter connecting joint 24 is connected with the detection tee joint 2 through an air pipe.
In order to increase the air tightness, as an improvement of the technical scheme, an air port connecting pipe is arranged on the long connecting pipe of the detection inner cylinder 6, and a detection silica gel pad 25 is arranged on the air port connecting pipe.
Referring to fig. 10, for the overall view of the connecting pipe airtightness detection device provided by the present invention, for convenience of installation, the detection solenoid valve 1, the detection throttle valve 23, and the detection tee 2 are all disposed on the detection connecting plate 29, the barometer 3 is disposed on the barometer bracket 30, the front and rear ends of the detection cylinder 4 are disposed on the detection cylinder bracket 31, and the detection connecting plate 29, the barometer bracket 30, the detection cylinder bracket 31, the holding bracket i 27, and the clamping block i 13 are all fixed on the supporting plate 12.
In order to improve the working efficiency, a plurality of sets of air tightness detecting assemblies 36 of the connection pipes may be provided on one support plate 12.
In order to realize automatic control, the invention also comprises a control unit which is programmed by a single chip microcomputer or a PLC and is matched with a relay to control the detection electromagnetic valve 1, the detection cylinder 4 and the push-up cylinder 20 so as to realize automatic control of the air tightness of the connecting pipe.
Claims (8)
1. The air tightness detection device for the connecting pipe is characterized by comprising a supporting plate (12), a holding component (35) and two groups of detection components (36) which are arranged on the supporting plate (12), wherein each group of detection components (36) comprises a detection electromagnetic valve (1), a detection tee joint (2), a barometer (3), a detection cylinder (4), a detection outer cylinder (5), a detection inner cylinder (6), a detection spring (7) and a detection straight joint (8), an air outlet of the detection electromagnetic valve (1) is connected with one port of the detection tee joint (2) through an air pipe, a second port of the detection tee joint (2) is connected with the barometer (3), the detection outer cylinder (5) is connected onto a cylinder push rod of the detection cylinder (4), a long hole is formed in the detection outer cylinder (5), interfaces are formed in the detection inner cylinder (6), the detection spring (7) and the detection inner cylinder (6) are sequentially installed inside the detection outer cylinder (5), the detection straight joint (8) penetrates through a long hole in the detection outer cylinder (5) and is connected with an interface on the detection inner cylinder (6), a long connecting pipe is arranged at one end, away from the detection spring (7), of the detection inner cylinder (6), the long connecting pipe penetrates through the other end of the detection outer cylinder (5), and a third port of the detection tee joint (2) is connected with the detection straight joint (8) through an air pipe.
2. The airtightness detection apparatus for a connection pipe according to claim 1, wherein the holding means (35) includes a holding bracket, a holding cylinder (9), a holding clamp cylinder (10), and holding claws (11), the holding cylinder (9) is provided on the holding bracket, cylinder push rods of the holding cylinder (9) are connected to the two holding clamp cylinders (10), and cylinder push rods of the two holding clamp cylinders (10) are respectively connected to a set of holding claws (11); two groups of holding claws (11) are respectively positioned at the front upper part of the long connecting pipe on the two detection inner cylinders (6).
3. The airtightness detection apparatus for a connection pipe according to claim 2, further comprising a clamping mechanism (37) and a push-up mechanism (38) which are provided on the support plate (12), wherein the clamping mechanism (37) is provided on the support plate (12) on a side of the two sets of holding claws (11) away from the two sets of detection members (36), and the push-up mechanism (38) is provided below the support plate (12) in up-and-down correspondence with the clamping mechanism (37);
fixture (37) is including grip block I (13), grip block II (14), centre gripping post (15) and two centre gripping guide pillars (16), grip block I (13) are fixed on backup pad (12), grip block II (14) middle part is fixed to grip block (15) upper end, the lower extreme passes grip block I (13) and backup pad (12) in proper order, and be equipped with compression spring (17) and cup joint the one end at centre gripping post (15), compression spring (17) one end is connected at backup pad (12) lower surface, the lower extreme fixed connection of the other end and grip block (15), the both ends at grip block II (14) are fixed respectively to two centre gripping guide pillars (16) upper end, the lower extreme passes grip block I (13) and backup pad (12) in proper order.
4. The airtightness detection apparatus for a connection pipe according to claim 3, wherein lower holding blocks (18) are provided on the upper surface of the holding block I (13) and on both sides of the holding column (15), respectively, and upper holding blocks (19) are provided on the lower surface of the holding block II (14) and on both sides of the holding column (15), respectively.
5. The airtightness detection apparatus for a connection pipe according to claim 3, wherein the push-up mechanism (38) includes a push-up cylinder (20), a push-up plate (21), and a push-up bracket (22), a cylinder push rod at an upper end of the push-up cylinder (20) is connected to the push-up plate (21), and the push-up cylinder (20) is disposed on the push-up bracket (22).
6. The airtightness detection apparatus of a connection pipe according to claim 1, further comprising a detection damper (23), the detection damper (23) being connected to an air inlet of the detection solenoid valve (1) through an air pipe.
7. The airtightness detection apparatus for a connection pipe according to claim 1, wherein a barometer connection joint (24) is provided on the barometer (3), and the barometer connection joint (24) is connected to the detection tee (2) through a gas pipe.
8. The airtightness detection apparatus for connection pipes according to claim 1, wherein an air port connection pipe is provided on the long connection pipe of the detection inner cylinder (6), and a detection silica gel pad (25) is provided on the air port connection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110972679.0A CN113418665A (en) | 2021-08-24 | 2021-08-24 | Air tightness detection equipment for connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110972679.0A CN113418665A (en) | 2021-08-24 | 2021-08-24 | Air tightness detection equipment for connecting pipe |
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| Publication Number | Publication Date |
|---|---|
| CN113418665A true CN113418665A (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110972679.0A Pending CN113418665A (en) | 2021-08-24 | 2021-08-24 | Air tightness detection equipment for connecting pipe |
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| CN (1) | CN113418665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307825A (en) * | 2022-10-11 | 2022-11-08 | 南通市奥华医用品有限公司 | Suction connecting pipe air tightness detection tool |
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| JP2008224307A (en) * | 2007-03-09 | 2008-09-25 | Canon Anelva Technix Corp | Leakage inspection device |
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| CN115307825A (en) * | 2022-10-11 | 2022-11-08 | 南通市奥华医用品有限公司 | Suction connecting pipe air tightness detection tool |
| CN115307825B (en) * | 2022-10-11 | 2023-02-28 | 南通市奥华医用品有限公司 | Suction connecting pipe air tightness detection tool |
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Application publication date: 20210921 |
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