CN110132113B - Stop valve detection device and method - Google Patents
Stop valve detection device and method Download PDFInfo
- Publication number
- CN110132113B CN110132113B CN201910517206.4A CN201910517206A CN110132113B CN 110132113 B CN110132113 B CN 110132113B CN 201910517206 A CN201910517206 A CN 201910517206A CN 110132113 B CN110132113 B CN 110132113B
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- main body
- conical surface
- stop valve
- valve
- central
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/243—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for measuring chamfer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a stop valve detection device and a stop valve detection method. When the check valve is detected to be qualified, the check valve is inserted into the main body, and whether the check valve is qualified or not can be judged only by observing the matching condition of the central shaft and the central hole of the check valve and the matching condition of the conical surface in the main body and the conical surface of the check valve, so that the whole detection process is simple and the efficiency is high; and moreover, the unqualified stop valve can be effectively detected, so that the product quality is improved, and the abnormal stop valve can be effectively reduced to flow to a subsequent process, so that the reworking cost is reduced.
Description
Technical Field
The invention relates to the technical field of stop valves, in particular to a stop valve detection device and a stop valve detection method.
Background
In the current air conditioner manufacturing industry, in order to realize on-off control (both in-factory process production and after-sales installation) of refrigerants in pipelines and the installation and connection requirements of after-sales internal and external machines, stop valves are widely used in the air conditioner industry, and at least two stop valves are used in each set of air conditioner at present. A complete set of air conditioner is composed of indoor unit, outdoor unit and connecting pipe, and when in after-sales installation, one end of connecting pipe is needed to butt joint with the end of connecting pipe of stop valve of outdoor unit, and the other end is butt joint with pipe joint of indoor unit, so that indoor unit and outdoor unit are connected into a whole, and finally, normal operation of air conditioner is realized.
The conical surface of the stop valve connecting pipe is directly matched with the bell mouth of the connecting pipe, and then the conical surface is tightly sealed after being screwed by a copper nut. If the connection and the seal are not tight, the refrigerant in the air conditioner gradually leaks, so that the air conditioner effect is affected, and customer complaints are finally caused (the case of complaints caused by eccentric leakage of the stop valve after sale). In order to ensure the sealing effect, the angle of the conical surface of the stop valve and the eccentricity of the central hole are controlled in a key way.
At present, for the detection of the angle of the conical surface and the eccentricity of the central hole of the stop valve, only a special projection instrument can detect the angle of the conical surface (but the eccentricity cannot be detected), but the precise instrument of the projector can only be placed in a laboratory, the environment of a production site cannot be placed at all, the operation is relatively complex, and general production line operators cannot operate, so that the current use post is detected by eyes of the operators, the detection is difficult, the detection rate is low, the hidden danger of quality is large, and once the detection is missed, leakage is needed to occur after sale.
Disclosure of Invention
The invention aims to provide a stop valve detection device and a stop valve detection method which are simple to detect.
The technical scheme of the invention is as follows: the utility model provides a stop valve detection device, include hollow main part and locate the center pin in the main part, the center pin is used for cooperating with the centre bore of stop valve, be equipped with on the main part and be used for observing the center pin with the breach of the cooperation condition of the centre bore of stop valve.
The central shaft is telescopically arranged in the main body.
The main body is internally provided with a spring, and the central shaft is telescopically arranged in the main body through the spring.
The main body is provided with a first end and a second end, the central shaft comprises a first central shaft, a second central shaft, a third central shaft and a fourth central shaft, the first central shaft and the second central shaft are positioned at the first end, the first central shaft is sleeved outside the second central shaft, and the first central shaft is telescopically arranged at the first end; the third central shaft and the fourth central shaft are positioned at the second end, the third central shaft is sleeved outside the fourth central shaft, and the third central shaft is telescopically arranged at the second end.
The main body is internally provided with a conical surface, the conical surface in the main body is used for being in contact fit with the conical surface of the stop valve, and the notch is also used for observing the fit condition of the conical surface in the main body and the conical surface of the stop valve.
The main body is provided with a first end and a second end, the conical surface in the main body comprises a first conical surface, a second conical surface, a third conical surface and a fourth conical surface, the first conical surface and the second conical surface are arranged at the first end, and the first conical surface is positioned at the outer side of the second conical surface; the third conical surface and the fourth conical surface are arranged at the second end, and the third conical surface is positioned at the outer side of the fourth conical surface.
The invention also provides a check valve detection method, which comprises the following steps:
inserting a central hole of the shut-off valve into a central shaft of the main body;
and observing the matching condition of the central hole of the stop valve and the central shaft of the main body through the notch, so as to judge whether the stop valve is qualified.
And if the central hole of the stop valve cannot be inserted into the central shaft of the main body, judging that the stop valve is not qualified.
The step of inserting the central hole of the stop valve into the central shaft of the main body is performed, the conical surface of the stop valve is in contact fit with the conical surface of the main body, the fit condition of the central hole of the stop valve and the central shaft of the main body is observed through the notch, so that whether the stop valve is qualified is judged, and the fit condition of the conical surface of the stop valve and the conical surface of the main body is also observed through the notch, so that whether the stop valve is qualified is judged.
If the conical surface of the stop valve and the conical surface of the main body cannot be in contact fit, the stop valve is judged to be unqualified, and/or if at least one of two sides of the conical surface of the stop valve is not parallel to the conical surface of the main body, the stop valve is judged to be unqualified.
When the check valve is detected to be qualified, the check valve is inserted into the main body, and whether the check valve is qualified or not can be judged only by observing the matching condition of the central shaft and the central hole of the check valve and the matching condition of the conical surface in the main body and the conical surface of the check valve, so that the whole detection process is simple and the efficiency is high; and moreover, the unqualified stop valve can be effectively detected, so that the product quality is improved, and the abnormal stop valve can be effectively reduced to flow to a subsequent process, so that the reworking cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a check valve detection device in an embodiment of the invention.
Fig. 2 is a state diagram of the check valve detected by the check valve detecting device in the embodiment of the present invention.
Detailed Description
As shown in fig. 1, the stop valve detection device provided in the embodiment of the invention includes a hollow main body 1 and a central shaft disposed in the main body 1, wherein the main body 1 is cylindrical, the central shaft is used for being matched with a central hole of a stop valve, a conical surface is disposed in the main body 1, and the conical surface in the main body 1 is used for being in contact fit with the conical surface of the stop valve. The main body 1 is provided with a notch 8, and the matching condition of the central shaft and the central hole of the stop valve and the matching condition of the conical surface in the main body and the conical surface of the stop valve are observed through the notch 8. When the check valve is detected to be qualified, the check valve is inserted into the main body, and whether the check valve is qualified or not can be judged only by observing the matching condition of the central shaft and the central hole of the check valve and the matching condition of the conical surface in the main body and the conical surface of the check valve, so that the whole detection process is simple and the efficiency is high; and moreover, the unqualified stop valve can be effectively detected, so that the product quality is improved, and the abnormal stop valve can be effectively reduced to flow to a subsequent process, so that the reworking cost is reduced.
The central shaft also serves to position the shut-off valve.
The central shaft is telescopically arranged in the main body 1. In this embodiment, a spring 11 is further disposed in the main body 1, and the central shaft is telescopically disposed in the main body 1 through the spring 11.
The main body 1 has a first end (left end) and a second end (right end), the first end and the second end are both provided with the notch 8, and the arc angle of the notch 8 is 1/3 of the circumference, namely 60 degrees. The central shaft comprises a first central shaft 2, a second central shaft 3, a third central shaft 4 and a fourth central shaft 5, wherein the first central shaft 2 corresponds to the central hole of the 3/8 stop valve, the second central shaft 3 corresponds to the central hole of the 1/4 stop valve, the third central shaft 4 corresponds to the central hole of the 5/8 stop valve, and the fourth central shaft 5 corresponds to the central hole of the 1/2 stop valve. The first central shaft 2 and the second central shaft 3 are positioned at the left end, and the first central shaft 2 is sleeved outside the second central shaft 3. The left end of main part 1 is equipped with spring 11, and the one end of spring 11 supports in main part 1, and the other end of spring 11 supports with the one end that is located in main part 1 of first center pin 2 to it is scalable to guarantee first center pin 2. The third central shaft 4 and the fourth central shaft 5 are positioned at the right end, and the third central shaft 4 is sleeved outside the fourth central shaft 5. The right end of the main body 1 is also provided with a spring 11, one end of the spring 11 is propped against the main body 1, and the other end of the spring 11 is propped against one end of the third central shaft 4, which is positioned in the main body 1, so as to ensure that the third central shaft 4 can stretch out and draw back.
The conical surfaces in the main body 1 comprise a first conical surface 6, a second conical surface 7, a third conical surface 9 and a fourth conical surface 10, wherein the first conical surface 6 corresponds to the conical surface of the 3/8 stop valve, the second conical surface 7 corresponds to the conical surface of the 1/4 stop valve, the third conical surface 9 corresponds to the conical surface of the 5/8 stop valve, and the fourth conical surface 10 corresponds to the conical surface of the 1/2 stop valve. The first conical surface 6 and the second conical surface 7 are arranged at the left end, and the first conical surface 6 is positioned at the outer side of the second conical surface 7. The third conical surface 9 and the fourth conical surface 10 are arranged at the right end, and the third conical surface 9 is positioned at the outer side of the fourth conical surface 10. Thus, the detection of the specifications of the 4 stop valves can be unified on one detection device.
As shown in fig. 2, the following description will be made of the check valve detection device for detecting whether the 3/8 check valve is acceptable:
The 3/8 cut-off valve 12 is set to have a fifth tapered surface 122, the 3/8 cut-off valve 12 is inserted into the main body 1 such that the first central shaft 2 is engaged with the central hole 121 of the 3/8 cut-off valve 12, the first tapered surface 6 is in contact engagement with the fifth tapered surface 122 of the 3/8 cut-off valve 12, and the engagement is observed through a notch. Upon observation, any one of the following conditions occurs, and it is determined that the 3/8 shut-off valve 12 is failed:
in the first case, the center hole 121 of the 3/8 shut-off valve 12 cannot be inserted into the first center shaft 2 (failure cause: the center hole size of the shut-off valve is small);
In the second case, the fifth tapered surface 122 cannot be in contact engagement with the first tapered surface 6 (failure cause: eccentric abnormality of the center hole of the shutoff valve);
in the third case, both sides of the fifth tapered surface 122 are not parallel to the first tapered surface 6 (failure cause: tapered surface angle of the shutoff valve is abnormal);
in the fourth case, one of the two sides of the fifth tapered surface 122 is not parallel to the first tapered surface 6, for example, the left side of the fifth tapered surface 122 is not parallel to the first tapered surface 6, or the right side of the fifth tapered surface 122 is not parallel to the first tapered surface 6 (failure cause: abnormal tapered surface angle of the shutoff valve).
When whether the 1/4 stop valve is qualified or not is detected, the 1/4 stop valve is aligned with the first central shaft 2 of the detection device, the first central shaft 2 is slightly pressed down, the second central shaft 3 in the detection device is exposed, and then the detection is carried out according to the detection method of the 3/8 stop valve.
The invention also provides a check valve detection method, which comprises the following steps:
inserting a central hole of the shut-off valve into a central shaft of the main body;
the conical surface of the stop valve is contacted and matched with the conical surface of the main body;
and the matching condition of the central hole of the stop valve and the central shaft of the main body and the matching condition of the conical surface of the stop valve and the conical surface of the main body are observed through the notch, so that whether the stop valve is qualified or not is judged.
When the check valve is detected to be qualified, the check valve is inserted into the main body, and whether the check valve is qualified or not can be judged only by observing the matching condition of the central shaft and the central hole of the check valve and the matching condition of the conical surface on the main body and the conical surface of the check valve, so that the whole detection process is simple and the efficiency is high; and moreover, the unqualified stop valve can be effectively detected, so that the product quality is improved, and the abnormal stop valve can be effectively reduced to flow to a subsequent process, so that the reworking cost is reduced.
In the observation, any of the following cases occurs, and it is determined that the shutoff valve is failed.
If the center hole of the stop valve cannot be inserted into the center shaft of the main body, the stop valve is judged to be unqualified.
If the conical surface of the stop valve cannot be in contact fit with the conical surface of the main body, the stop valve is judged to be unqualified.
If the two sides of the conical surface of the stop valve are not parallel to the conical surface of the main body, judging that the stop valve is unqualified.
If one of two sides of the conical surface of the stop valve is not parallel to the conical surface of the main body, the stop valve is judged to be unqualified.
The following is an example of detecting a 3/8 cut-off valve and a 1/4 cut-off valve.
The detection method of the 3/8 stop valve comprises the following steps:
a. firstly, selecting a corresponding end of a detection device according to the specification of a stop valve to be detected; if the 3/8 stop valve is detected, selecting the left end of the detection device;
b. Inserting a central hole of the 3/8 stop valve into a central shaft of the main body, and enabling a conical surface of the 3/8 stop valve to be in contact fit with the conical surface of the main body;
c. observing the matching condition of the central hole of the stop valve and the central shaft of the main body and the matching condition of the conical surface of the stop valve and the conical surface of the main body, and if any one of the following three conditions occurs, the stop valve is unqualified:
The central hole of the stop valve cannot be inserted into the central shaft of the main body;
The conical surface of the stop valve and the conical surface of the main body cannot be in contact fit;
two edges of the conical surface of the stop valve are not parallel to the conical surface of the main body;
One of the two sides of the tapered surface of the stop valve is not parallel to the tapered surface of the main body.
The detection method of the 1/4 stop valve comprises the following steps:
When the 1/4 stop valve is detected to be qualified, the 1/4 stop valve is slightly pressed down with force aiming at the central shaft of the detection device, the central shaft corresponding to the outer 3/8 stop valve is pressed to the bottom, so that the central shaft corresponding to the inner 1/4 stop valve is exposed, and then the detection is carried out according to the detection method of the 3/8 stop valve.
The detection method of the 5/8 stop valve is the same as that of the 3/8 stop valve, and the detection method of the 1/2 stop valve is the same as that of the 1/4 stop valve.
The above embodiments are only for illustrating the idea of the present invention, and those skilled in the art can make various modifications and variations within the scope of the present invention.
Claims (8)
1. The stop valve detection device is characterized by comprising a hollow main body (1) and two central shafts arranged in a first end of the main body (1), wherein the central shafts are used for being matched with a central hole of a stop valve, and a notch (8) for observing the matching condition of the central shafts and the central hole of the stop valve is arranged on the main body (1);
The two central shafts comprise a first central shaft (2) and a second central shaft (3) which are matched with central holes of stop valves of different sizes, a spring (11) is further arranged in the main body (1), the first central shaft (2) is sleeved outside the second central shaft (3), the first central shaft (2) is arranged in the main body (1) in a telescopic mode through the spring (11), one end of the spring (11) abuts against the main body (1), and the other end of the spring (11) abuts against one end, located in the main body (1), of the first central shaft (2).
2. The stop valve detection device according to claim 1, further comprising a third central shaft (4) and a fourth central shaft (5) disposed in the second end of the main body (1), wherein the third central shaft (4) is sleeved outside the fourth central shaft (5), and the third central shaft (4) is telescopically disposed at the second end.
3. The stop valve detection device according to claim 1, wherein a conical surface is arranged in the main body (1), the conical surface in the main body (1) is used for being in contact fit with the conical surface of the stop valve, and the notch (8) is also used for observing the fit condition of the conical surface in the main body (1) and the conical surface of the stop valve.
4. A shut-off valve detection device according to claim 3, characterized in that the body (1) has a first end and a second end, the conical surfaces in the body comprising a first conical surface (6), a second conical surface (7), a third conical surface (9) and a fourth conical surface (10), the first conical surface (6) and the second conical surface (7) being provided at the first end, and the first conical surface (6) being located outside the second conical surface (7); the third conical surface (9) and the fourth conical surface (10) are arranged at the second end, and the third conical surface (9) is positioned at the outer side of the fourth conical surface (10).
5. A method of detecting a shut-off valve, comprising the steps of:
inserting the central bore of the shut-off valve into the central axis of the body, including inserting the central bore of the shut-off valve into the first central axis of the body, or the shut-off valve pushing the first central axis to move toward the body to expose the second central axis, such that the central bore of the shut-off valve is inserted into the second central axis of the body;
and observing the matching condition of the central hole of the stop valve and the central shaft of the main body through the notch, so as to judge whether the stop valve is qualified.
6. The method according to claim 5, wherein if the center hole of the shutoff valve cannot be inserted into the center shaft of the main body, the shutoff valve is judged to be failed.
7. The method according to claim 5 or 6, wherein the step of inserting the center hole of the shutoff valve into the center axis of the main body is performed, and the tapered surface of the shutoff valve is brought into contact with the tapered surface of the main body, and the step of determining whether the shutoff valve is acceptable is performed by observing the engagement of the center hole of the shutoff valve with the center axis of the main body through the notch, and the step of determining whether the shutoff valve is acceptable is performed by observing the engagement of the tapered surface of the shutoff valve with the tapered surface of the main body through the notch.
8. The method according to claim 7, wherein if the tapered surface of the stop valve and the tapered surface of the main body are not in contact with each other, the stop valve is judged to be failed and/or if at least one of both sides of the tapered surface of the stop valve is not parallel to the tapered surface of the main body, the stop valve is judged to be failed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517206.4A CN110132113B (en) | 2019-06-14 | 2019-06-14 | Stop valve detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517206.4A CN110132113B (en) | 2019-06-14 | 2019-06-14 | Stop valve detection device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110132113A CN110132113A (en) | 2019-08-16 |
| CN110132113B true CN110132113B (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910517206.4A Active CN110132113B (en) | 2019-06-14 | 2019-06-14 | Stop valve detection device and method |
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| CN (1) | CN110132113B (en) |
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| CN105115672A (en) * | 2015-10-16 | 2015-12-02 | 江南工业集团有限公司 | Detection device and method for low-temperature stop valve |
| CN205002722U (en) * | 2015-09-25 | 2016-01-27 | 一汽通用红塔云南汽车制造有限公司 | Utensil is tested in special use of sealed face of awl in pipe fitting tip |
| JP2017075582A (en) * | 2015-10-16 | 2017-04-20 | 中国電力株式会社 | Jig for measuring stroke of bypass valve for steam turbine main steam stopper valve |
| CN206420651U (en) * | 2016-07-01 | 2017-08-18 | 无锡诚石轴承有限公司 | A kind of bearing seal detecting tool |
| CN108061507A (en) * | 2018-01-23 | 2018-05-22 | 四川优机实业股份有限公司 | Seal the detection instrument of hydraulic fluid port |
| CN207907777U (en) * | 2018-01-10 | 2018-09-25 | 盾安（芜湖）中元自控有限公司 | A kind of shut-off valve conical surface circle bounce gauge |
| CN208313198U (en) * | 2018-06-28 | 2019-01-01 | 上汽依维柯红岩商用车有限公司 | For detecting the cubing of pipe fitting inner cone sealing surface taper |
| CN209727026U (en) * | 2019-06-14 | 2019-12-03 | 格力电器（重庆）有限公司 | Stop valve detection device |
-
2019
- 2019-06-14 CN CN201910517206.4A patent/CN110132113B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10246661A (en) * | 1997-03-04 | 1998-09-14 | Kansai Gas Meter Co Ltd | Cut-off stroke value inspection jig for emergency cut-off valve in gas meter |
| CN103574193A (en) * | 2012-08-10 | 2014-02-12 | 浙江三花股份有限公司 | Stop valve for air conditioner |
| CN203784324U (en) * | 2014-04-02 | 2014-08-20 | Tcl空调器(中山)有限公司 | Air-conditioning stop valve |
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| CN206420651U (en) * | 2016-07-01 | 2017-08-18 | 无锡诚石轴承有限公司 | A kind of bearing seal detecting tool |
| CN207907777U (en) * | 2018-01-10 | 2018-09-25 | 盾安（芜湖）中元自控有限公司 | A kind of shut-off valve conical surface circle bounce gauge |
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| Publication number | Publication date |
|---|---|
| CN110132113A (en) | 2019-08-16 |
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