CN113310645A - Adjustable seal detector and seal detection method - Google Patents
Adjustable seal detector and seal detection method Download PDFInfo
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- CN113310645A CN113310645A CN202110867704.9A CN202110867704A CN113310645A CN 113310645 A CN113310645 A CN 113310645A CN 202110867704 A CN202110867704 A CN 202110867704A CN 113310645 A CN113310645 A CN 113310645A
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- 238000001514 detection method Methods 0.000 title abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 62
- 230000017105 transposition Effects 0.000 claims abstract description 49
- 238000000605 extraction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 13
- 238000003780 insertion Methods 0.000 description 65
- 230000037431 insertion Effects 0.000 description 65
- 230000000903 blocking effect Effects 0.000 description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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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
- G01M3/36—Investigating fluid-tightness of structures by using fluid or vacuum by detecting change in dimensions of the structure being tested
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Abstract
The invention relates to the technical field of seal detection, in particular to an adjustable seal detector and a seal detection method. The invention provides an adjustable sealing detector, which comprises: the detector comprises a detector body, a pressing part arranged in the detector body and a rotating part arranged at the movable end of the pressing part; the pressing portion is suitable for pressing an object to be tested, a transposition lug is arranged at the bottom of the pressing portion and deviates from the center of the pressing portion, and after the transposition lug is contacted with the object to be tested, the rotating portion can be linked with the transposition lug to rotate along the surface of the object to be tested. Through this sealed detector, negative pressure and pressurize are realized to the determinand that can be quick to the rotation portion can press at the determinand surface in the rotation, prevents to press material portion to cover the determinand leak, causes the influence to the testing result.
Description
Technical Field
The invention relates to the technical field of seal detection, in particular to an adjustable seal detector and a seal detection method.
Background
Chinese patent with the publication number of grant CN105675231B provides a negative pressure sealing detection device, including being used for with the outer peripheral face sealing fit of coupling assembling and establishing the sealed barrel including the connector cover, sealed barrel encloses into the seal chamber with coupling assembling, be equipped with on the sealed barrel be used for to aerify the pressure boost in the seal chamber so that the pressure in the seal chamber is greater than the air inlet of the pressure in the coupling assembling, negative pressure sealing detection device is still including being used for detecting the pressure detection device of pressure change in the seal chamber. The pressure in the connecting component of the negative pressure sealing detection device is smaller than the pressure in the sealing cavity outside the connecting component, namely the pressure in the connecting component is negative, so that the negative pressure sealing detection of the connector on the connecting component can be realized without a vacuum pump, and the negative pressure sealing detection device is convenient to use and simple to detect.
However, the negative pressure sealing detection device can contact with the surface of the object to be detected during detection, and there is a possibility that the leakage position of the object to be detected is just at the contact part, and the contact part is blocked by the detection device, so that whether the object to be detected leaks or not cannot be detected correctly.
In order to solve the above problems, a new seal detector needs to be designed.
Disclosure of Invention
The invention aims to solve the problem that the leakage position of an object to be detected is just at the contact part, and the contact part is blocked by a detection device, so that whether the object to be detected leaks or not cannot be correctly detected.
In order to solve the technical problem, the invention provides an adjustable seal detector, which is characterized by comprising: the detector comprises a detector body, a pressing part arranged in the detector body and a rotating part arranged at the movable end of the pressing part; the detector body is provided with an air pumping channel suitable for being connected with an air pumping pump, and the air pumping pump is suitable for pumping air in the detector body; the pressing part is suitable for pressing an object to be detected, a transposition lug is arranged at the bottom of the pressing part, and the transposition lug deviates from the center of the pressing part; after the transposition lug is contacted with the object to be detected, the rotating part can be linked with the transposition lug to rotate along the surface of the object to be detected.
Furthermore, a covering groove is formed in the top of the detector body; the pressing part comprises a cover plate matched with the covering groove, a pressing cylinder arranged at the bottom of the cover plate and a pressing plate arranged at the movable end of the pressing cylinder; after the cover plate is covered in the covering groove, the material pressing cylinder can drive the material pressing plate to press an object to be detected.
Furthermore, the rotating part is located between the movable end of the pressing cylinder and the pressing plate, the transposition lug is fixedly connected to the bottom of the pressing plate, the transposition lug deviates from the central axis of the pressing plate, and after the transposition lug is contacted with an object to be detected, the rotating part can be linked with the pressing plate to rotate so as to enable the transposition lug to rotate.
Furthermore, the rotating part comprises a rotating block fixedly connected to the outer side wall of the movable end of the material pressing cylinder and a lower rotating sleeve fixedly connected to the center of the top end face of the material pressing plate; the inner side wall of the lower rotating sleeve is provided with a limiting groove matched with the rotating block; the arc center angle of the limiting groove on the horizontal projection plane is not less than 90 degrees; after the transposition lug is contacted with an object to be detected, the rotating block can slide along the limiting groove and push the lower rotating sleeve to rotate.
Further, the limiting groove is spiral.
Furthermore, an upper rotating sleeve is sleeved at the movable end of the material pressing cylinder and is positioned above the lower rotating sleeve; a rotating spring is arranged between the upper rotating sleeve and the lower rotating sleeve; after the transposition lug is contacted with an object to be detected, the upper rotating sleeve can compress the rotating spring; after the transposition lug is separated from the object to be detected, the rotating spring rebounds to enable the lower rotating sleeve to be far away from the upper rotating sleeve.
Furthermore, the bottom end surface of the upper rotating sleeve is provided with an annular upper clamping groove, and the upper end surface of the lower rotating sleeve is provided with an annular lower clamping groove; and two ends of the rotating spring are respectively clamped in the upper clamping groove and the lower clamping groove.
Furthermore, the transposition lug is provided with a spherical surface, and the spherical surface is contacted with the object point to be detected.
Furthermore, the inner bottom wall of the detector body is provided with a positioning table, and the upper end surface of the positioning table is provided with a positioning groove suitable for positioning an object to be detected.
Further, a detection method of the seal detector comprises the following steps: placing an object to be tested on the positioning table, covering the cover plate, pushing the material pressing plate to press the object to be tested through the material pressing cylinder, and recording the initial position of the material pressing plate; connecting an air pump to the air extraction channel, and extracting air in the detector body through the air pump so as to form negative pressure in the detector body; the material pressing plate is continuously driven by the material pressing cylinder to press the object to be detected, and the rotating block slides along the limiting groove to enable the material pressing plate to rotate; continuously changing the contact point of the transposition lug and the object to be detected, and recording the final position of the material pressing plate; comparing whether the final position is the same as the initial position.
The invention has the beneficial effects that when being installed, the plugging pipe is firstly connected with the air suction pump, then inserted into the air suction channel until the plugging pipe is limited in the air suction channel, so that the plugging pipe is prevented from dropping out, and is continuously inserted, the plugging pipe can push the plugging part to slide and open towards the detector body, and in such a way, the inspection mechanism can be quickly connected with the air suction channel, and the air suction channel can be quickly communicated; after negative pressure is formed inside the detector body, the plug pipe is retracted, so that the plugging part can retract to plug the air exhaust channel, and the internal quick pressure maintaining of the detector body is realized.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a perspective view of a preferred embodiment of a seal detector of the present invention;
FIG. 2 is an exploded view of a preferred embodiment of a seal detector of the present invention;
fig. 3 is an exploded view of a preferred embodiment of the pressing portion of the present invention;
FIG. 4 is a perspective view of a preferred embodiment of an index bump of the present invention;
FIG. 5 is a schematic view of a preferred embodiment of the present invention with one blocking piece mounted to one half of the suction channel;
FIG. 6 is a front view of FIG. 5;
FIG. 7 is a cross-sectional view of section A-A of FIG. 6;
FIG. 8 is a cross-sectional view of the block open;
in the figure: 1. a detector body; 11. a visible area; 12. a dial scale; 13. covering the groove; 14. an air extraction channel; 141. a sliding groove; 142. plugging the groove; 143. a telescopic groove; 144. a first insertion groove; 145. a second insertion groove; 146. an inlet tank; 147. a rotating groove;
2. a material pressing part; 21. a cover plate; 22. a material pressing cylinder; 23. a material pressing plate; 24. a water-absorbing block;
3. a plugging section; 31. a slider; 32. a plugging block; 33. a telescopic rod; 34. a guide block; 35. a limiting block; 36. a tension spring;
4. inserting a pipe; 41. an insertion block;
5. a rotating part; 51. rotating the block; 52. a lower rotating sleeve; 521. a limiting groove; 522. a lower clamping groove; 53. rotating the sleeve upwards; 531. an upper clamping groove; 54. a rotating spring;
6. a transposition lug;
7. a positioning table; 71. and (6) positioning a groove.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example one
As shown in fig. 1 to 8, the present embodiment provides an adjustable seal detector, which includes:
the detector comprises a detector body 1, wherein the detector body 1 is used for placing an object to be detected, a visible area 11 is arranged on the side wall of the detector body 1, specifically, the visible area 11 can be a piece of transparent glass, a piece of transparent acrylic plate or other transparent materials, specifically, a vertical through hole is formed in the detector body 1, the glass or acrylic plate is installed at the position of the through hole, meanwhile, the sealing performance between the glass or acrylic plate and the detector body 1 is ensured, and the internal condition of the detector body 1 is observed through the visible area 11; a dial 12 is arranged at the position of the visible area 11, and the scales of the dial 12 are gradually increased from top to bottom; the detector body 1 is of a sleeve structure, the bottom end of an opening in the upper end of the detector body 1 is sealed, and a cover groove 13 is formed in the top of the detector body 1.
The pressing part 2 is installed in the detector body 1, and the pressing part 2 can press the object to be detected, so that the object to be detected is pressed against to observe the value of the corresponding dial 12, and whether the object to be detected leaks or not is judged by observing the value for multiple times.
The structure of the material pressing part 2 is as follows, the material pressing part 2 comprises a cover plate 21 matched with the covering groove 13, the cover plate 21 is used for covering the covering groove 13, so that a closed space is formed inside the detector body 1, specifically, the cover plate 21 is of a double-layer structure, the diameter of the upper layer of the cover plate 21 is larger than that of the lower layer, the outer diameter of the lower layer of the cover plate 21 is equal to the inner diameter of the covering groove 13, the upper layer of the cover plate 21 is attached to the end face of the detector body 1, and the cover plate 21 and the covering groove 13 can be fixed in a threaded connection mode; a material pressing cylinder 22 is arranged at the bottom of the cover plate 21, the fixed end of the material pressing cylinder 22 is fixedly connected to the bottom of the cover plate 21, and a material pressing plate 23 is arranged at the movable end of the material pressing cylinder 22; place at the inside back of detector body 1 at the determinand, apron 21 lid closes in the groove 13, press material cylinder 22 can drive pressing flitch 23 presses the determinand, presses the determinand through the substate of pressing many times under the different states to observe the numerical value that presses flitch 23 to correspond calibrated scale 12, whether leak through observing pressing flitch 23 to correspond the numerical value and change and judge the determinand, if the reading changes, then the volume of determinand changes, and the determinand leaks.
In order to improve the high sealing effect between the cover plate 21 and the detector body 1, a water absorption block 24 is arranged at the joint of the cover plate 21 and the top of the detector body 1, preferably, the water absorption block 24 can be sponge, after the cover plate 21 is covered in the covering groove 13, liquid in the water absorption block 24 can be extruded out, and the liquid released by the water absorption block 24 can block a gap between the cover plate 21 and the upper end face of the detector body 1, so that a water seal between the cover plate 21 and the detector body 1 is formed, and the sealing effect between the cover plate 21 and the detector body 1 is improved in such a way; specifically, the water absorption block 24 may be fitted to a surface of the cover plate 21 that is in contact with the end surface of the monitor body 1.
It should be pointed out that, after the determinand is placed inside detector body 1, in pressing material portion 2 to close the lid through apron 21 lid and close groove 13 to carry out the water seal to detector body 1 through water absorption block 24, detector body 1 and the external world promptly are the state that can't carry out the gas circulation promptly, press material cylinder 22 at this moment can drive pressing material board 23 presses the determinand, but there may exist the department of revealing of determinand just at the contact site this moment, and the contact site is blocked up by detection device, therefore can't correctly detect whether the determinand reveals. The following can be adopted to solve the above problems.
The free end of the material pressing cylinder 22 is provided with a rotating part 5, the specific rotating part 5 is located between the movable end of the material pressing cylinder 22 and the material pressing plate 23, meanwhile, the lower end face of the material pressing plate 23 is provided with a transposition lug 6, the transposition lug 6 is eccentrically arranged with the free end of the material pressing cylinder 22 and is also eccentrically arranged with the excircle of the material pressing plate 23, the transposition lug 6 is fixedly connected with the bottom of the material pressing plate 23, and the transposition lug 6 can play a role that after the transposition lug 6 is contacted with a measured material, the rotating part 5 can be linked with the material pressing plate 23 to rotate, so that the transposition lug 6 is driven to rotate circumferentially around the excircle center of the material pressing plate 23, the transposition lug 6 can continuously rotate on the contact surface of the measured material, and the condition that the material pressing plate 23 is just pressed at the leakage position of the measured material is avoided.
The rotating motion of the transposition lug 6 is realized by the rotating part 5, the rotating part 5 specifically comprises a rotating block 51 fixedly connected to the outer side wall of the movable end of the material pressing cylinder 22 and a lower rotating sleeve 52 fixedly connected to the center of the top end face of the material pressing plate 23, meanwhile, a limiting groove 521 matched with the rotating block 51 is formed in the inner side wall of the lower rotating sleeve 52, the arc center angle of the limiting groove 521 on the horizontal projection plane is not less than 90 degrees, if the arc center angle of the limiting groove 521 on the horizontal projection plane is less than 90 degrees, when the rotating block 51 is connected with the lower rotating sleeve 52, the possibility that the rotating block 51 slides out of the limiting groove 521 exists. After the transposition lug 6 contacts with the object to be tested, the rotating block 51 can slide along the limiting groove 521 and push the lower rotating sleeve 52 to rotate.
In order to ensure that the rotating block 51 can slide along the limiting groove 521 and push the lower rotating sleeve 52 to rotate, the limiting groove 521 is spiral. Specifically, after the material pressing cylinder 22 pushes the transposition lug 6 to contact with the object to be tested, the material pressing cylinder 22 continues to move downward and pushes the rotating block 51 to move downward along the spiral surface of the limiting groove 521, so as to drive the material pressing plate 23 to rotate by a corresponding angle along with the sliding of the rotating block 51 in the spiral surface of the limiting groove 521, and further drive the transposition lug 6 to rotate.
In order to enable the rotating part 5 to return to the original position after the pressing cylinder 22 works once, an upper rotating sleeve 53 is sleeved at the movable end of the pressing cylinder 22, and the upper rotating sleeve 53 is positioned above the lower rotating sleeve 52; and a rotating spring 54 is arranged between the upper rotating sleeve 53 and the lower rotating sleeve 52, when the transposition lug 6 is contacted with the object to be tested, the upper rotating sleeve 53 can compress the rotating spring 54, and after the transposition lug 6 is separated from the object to be tested, the rotating spring 54 rebounds to enable the lower rotating sleeve 52 to be far away from the upper rotating sleeve 53.
In order to position the rotating spring 54, an annular upper engaging groove 531 is formed in a bottom end surface of the upper rotating sleeve 53, an annular lower engaging groove 522 is formed in an upper end surface of the lower rotating sleeve 52, the upper rotating sleeve 53 and the lower rotating sleeve 52 clamp the rotating spring 54 from the upper end and the lower end, respectively, and two ends of the rotating spring 54 are respectively engaged with the upper engaging groove 531 and the lower engaging groove 522.
In order to prevent the transposition lug 6 from being clamped into the leakage position of the measured object and moving along with the driven measured object, the transposition lug 6 is provided with a spherical surface, so that when the transposition lug 6 contacts the measured object, the spherical surface is in point contact with the measured object, the measured object cannot be clamped into the leakage position, and the detection accuracy is improved.
In order to further position the object to be detected, the inner bottom wall of the detecting instrument body 1 is provided with a positioning table 7, the positioning table 7 is in a cake shape, the upper end face of the positioning table 7 is provided with a positioning groove 71 suitable for positioning the object to be detected, the positioning groove 71 is formed along the central axis of the positioning table 7, and the positioning groove 71 is in a square shape and penetrates through the positioning table 7.
In addition, generally need the long-time leakage of determinand just can make pressing board 23 press the different positions of instruction calibrated scale 12 when determinand, the efficiency of detecting like this is lower, in order to improve detection efficiency, can take out the gas in the detector body 1 through the aspiration pump, make the interior negative pressure that forms of detector body 1, when the determinand leaks, air in the determinand can leak away from in the determinand fast, thereby the volume of determinand can change fast, and then the calibrated scale 12 position that pressing board 23 instructed can change fast, in order to improve detection efficiency. However, the tester body 1 needs to be quickly connected to the suction pump and to maintain the pressure after negative pressure, and in order to solve the above problems, the following design is required.
An air exhaust channel 14 is communicated with the detector body 1, a plugging part 3 suitable for plugging the air exhaust channel 14 is arranged on the inner side wall of the detector body 1, and pressure maintaining is realized in a negative pressure state of the detector body 1 through the plugging part 3; the blocking part 3 is of a central symmetrical structure, and the blocking part 3 can slide along the air exhaust channel 14, specifically, when the blocking part 3 slides out of the air exhaust channel 14, namely after the blocking part 3 slides into the detector body 1, the blocking part 3 is in an open state, so as to realize air exhaust in the detector body 1; the insertion pipe 4 is inserted into the air exhaust channel 14, the outer side wall of the insertion pipe 4 is attached to the inner side wall of the air exhaust channel 14, the outer diameter of the insertion pipe 4 is slightly smaller than the inner diameter of the air exhaust channel 14, so that the insertion smoothness of the insertion pipe 4 can be ensured, and the insertion pipe 4 is suitable for being connected with an air exhaust pump; when the detector is installed, the plug-in pipe 4 is connected with the air suction pump, then the plug-in pipe 4 is inserted into the air suction channel 14 until the plug-in pipe 4 is limited in the air suction channel 14, the situation that the plug-in pipe 4 is separated is avoided, the plug-in pipe 4 is continuously inserted, the plug-in pipe 4 can push the plugging part 3 to slide and open towards the detector body 1, and through the mode, the plug-in pipe 4 can be quickly connected with the air suction channel 14, and the air suction channel 14 can be quickly communicated; after negative pressure is formed inside the detector body 1, the plug pipe 4 is retracted, so that the plugging part 3 can retract to plug the air exhaust channel 14, and the internal quick pressure maintaining of the detector body 1 is realized.
A plurality of axially extending sliding grooves 141 are formed in the inner side wall of the air extraction channel 14, the sliding grooves 141 are located on one side of the inside of the detector body 1, and preferably, the number of the sliding grooves 141 is four.
The structure of the blocking part 3 is as follows, the blocking part 3 comprises a plurality of sliding blocks 31, and the end part of each sliding block 31 is integrally provided with a blocking block 32; each sliding block 31 corresponds to each sliding groove 141 one by one, and the sliding blocks 31 are connected in the sliding grooves 141 in a sliding manner, namely the number of the sliding blocks 31 and the number of the blocking blocks 32 are four; the blocking blocks 32 are mutually spliced to form a disc, the outer diameter of the disc is equal to the inner diameter of the air exhaust channel 14, the disc formed by splicing the four blocking blocks 32 is good in stability, the blocking effect on the air exhaust channel 14 is good, and the pressure maintaining effect of the detector body 1 is good; the plugging tube 4 pushes the sliding blocks 31 to slide simultaneously, and the sliding blocks 31 respectively push the corresponding plugging blocks 32 to slide out of the air exhaust channel 14, so that the plugging blocks 32 are opened, and the air exhaust channel 14 is communicated.
In order to further improve the air suction effect, the sliding groove 141 is obliquely arranged, and one end of the sliding groove 141, which is far away from the blocking block 32, penetrates out of the inner side wall of the air suction channel 14, specifically, the distance from one end of the sliding groove 141, which is located inside the detector body 1, to the central axis of the air suction channel 14 is greater than the distance from the other end of the sliding groove 141 to the air suction channel 14, that is, when the sliding block 31 slides towards the inside of the detector body 1, the sliding block slides towards the outer side wall of the air suction channel 14 in an inclined manner, so that in the process that the sliding block 31 slides along the sliding groove 141 in an inclined manner, the blocking blocks 32 are dispersed outwards, and gaps are formed between the blocking blocks 32 in such a manner, and the resistance of the blocking blocks 32 to the air suction air flow is reduced.
Specifically, the outer side wall of the air exhaust channel 14 is provided with a blocking groove 142 suitable for installing the blocking block 32, the blocking groove 142 is annular, the blocking groove 142 is located on one side of the air exhaust channel 14 close to the inner cavity of the detector body 1 and extends towards the other side, the thickness of the blocking groove 142 is equal to that of the blocking block 32, when the blocking blocks 32 are closed into a disc, the blocking block 32 does not extend into the inner cavity of the detector body 1, and the blocking block 32 cannot interfere with the disc when the pressure plate 23 presses the object to be detected.
In order to realize that the plugging block 32 is automatically closed and retracted into the plugging groove 142 after the plugging pipe 4 loosens the plugging block 32, a scheme is adopted that a plurality of axially extending telescopic grooves 143 are formed in the inner side wall of the air extraction channel 14, each telescopic groove 143 corresponds to each sliding groove 141 one by one, the telescopic grooves 143 are communicated with the corresponding sliding grooves 141, namely the number of the telescopic grooves 143 is four; a telescopic rod 33 capable of extending into the telescopic groove 143 is hinged on the sliding block 31, and a guide block 34 is fixedly connected to one end of the telescopic rod 33, which is far away from the sliding block 31; the width of the guide block 34 is matched with that of the telescopic groove 143, and the linearity of the telescopic rod 33 sliding in the telescopic groove 143 is ensured by the way that the guide block 34 is matched with the telescopic groove 143; a limit block 35 is arranged at the joint of the sliding groove 141 and the telescopic groove 143, a telescopic spring 36 is arranged between the limit block 35 and the guide block 34, the telescopic spring 36 is sleeved on the telescopic rod 33, two ends of the telescopic spring 36 are respectively abutted against the guide block 34 and the limit block 35, when ventilation is needed, the insertion pipe 4 pushes the guide block 34 to enable the telescopic rod 33 to slide in the telescopic groove 143 towards the direction of the sliding groove 141, the telescopic spring 36 is in a compressed state, and the sliding block 31 slides in the sliding groove 141 to enable the blocking block 32 to slide out of the blocking groove 142; when the inserting pipe 4 exits the air exhaust passage 14, the extension spring 36 rebounds to push the guide block 34 to slide in the direction away from the sliding groove 141, the guide block 34 slides to drive the extension rod 33 to slide, the extension rod 33 slides to drive the blocking block 32 to retract into the blocking groove 142 through the sliding block 31, and then the closing of the blocking block 32 is realized.
In the present embodiment, the plugging pipes 4 are plugged and at the same time the plugging blocks 32 are opened, so that the air exhaust channel 14 is conducted; when extracting plug tube 4, each shutoff piece 32 can be closed up automatically to make air exhaust passage 14 plugged up, and then realize the inside pressurize of detector body 1, realize the inside bleed state of detector body 1 and the fast switch-over of pressurize state through such mode, can realize automatically through inserting and extracting of plug tube 4 simultaneously, and it is relatively more simple and convenient to operate.
In order to realize that the insertion tube 4 pushes the guide block 34, a plurality of insertion blocks 41 are fixedly connected to the outer side wall of the insertion tube 4, each insertion block 41 corresponds to each telescopic slot 143 one by one, namely the number of the insertion blocks 41 is four, and the insertion blocks 41 protrude out of the outer side wall of the insertion tube 4; during the insertion of the insertion tube 4 into the suction channel 14, the insertion block 41 can push the guide block 34 to compress the expansion spring 36, so that the blocking block 32 is disengaged from the blocking groove 142; when the plug tube 4 is withdrawn, the plug block 41 releases the guide block 34 and the extension spring 36 springs back.
It should be noted that, when the detector body 1 is in the ventilation state and the pressure maintaining state, the insertion tube 4 may be accidentally pulled out from the air exhaust channel 14, and when the detector body 1 enters the pressure maintaining state, the insertion tube 4 is generally completely withdrawn, so that when the detector body 1 is switched to the ventilation state again, the insertion tube 4 needs to be aligned to the air exhaust channel 14 again, which is a complicated operation, in order to solve the above problem, it is necessary to design a scheme that the side wall of the telescopic groove 143 is respectively provided with a first insertion groove 144 and a second insertion groove 145, the first insertion groove 144 is close to the sliding groove 141, the first insertion groove 144 corresponds to the ventilation state of the detector body 1, that is, the position of the first insertion groove 144 corresponds to the position of the guide block 34 when the blocking block 32 is opened, the second insertion groove 145 corresponds to the pressure maintaining state of the detector body 1, that is, the position of the second insertion groove 145 corresponds to the position of the guide block 34 when the blocking groove 142 is withdrawn into the blocking groove 142, the width of the first insertion groove 144 and the width of the second insertion groove 145 are both smaller than the width of the telescopic groove 143, that is, when the insertion block 41 is inserted into the first insertion groove 144 or the second insertion groove 145, a part of the insertion block 41 protrudes into the telescopic groove 143, the insertion block 41 can also limit the guide block 34, so as to achieve the positioning effect on the ventilation state and the pressure maintaining state of the detector body 1, after the insertion block 41 pushes the guide block 34 to compress the telescopic spring 36 until the insertion block 41 corresponds to the first insertion groove 144, each blocking block 32 opens and conducts the air suction channel 14, and the insertion block 41 can be inserted into the first insertion groove 144 to lock the ventilation state of the detector body 1, so that the detector body 1 keeps ventilation; after the plugging block 41 is released from the first plugging groove 144, the extension spring 36 rebounds to retract the plugging block 41 to the position of the second plugging groove 145, each plugging block 32 just retracts into the plugging groove 142, the plugging block 41 is inserted into the second plugging groove 145 to lock the pressure maintaining state of the detector body 1, the plugging pipe 4 does not need to be released from the air exhaust channel 14, and further, in the next air exhaust process, the plugging pipe 4 only needs to be continuously inserted inwards without aligning the plugging pipe 4 with the air exhaust channel 14 again.
In this embodiment, through the mode that plug block 41 and first inserting groove 144 and second inserting groove 145 cooperate, also facilitate the detection of whole sealed detector, specifically, when the plug pipe 4 backs, rotate plug pipe 4 and make plug block 41 laminate flexible groove 143, and then plug block 41 can be gone into automatically after reaching the position of second inserting groove 145 and go into in second inserting groove 145 to detector body 1 switches into the pressurize state by the state of ventilating, and the operation accuracy is also higher.
In order to avoid the situation that the insertion pipe 4 is accidentally pulled out from the air exhaust channel 14, so as to realize automatic locking after the insertion pipe 4 is inserted into the air exhaust channel 14, the following scheme is adopted, wherein a plurality of axially extending inlet grooves 146 are further formed in the inner side wall of the air exhaust channel 14, the number of the inlet grooves 146 is equal to that of the telescopic grooves 143, and the inlet grooves 146 and the corresponding telescopic grooves 143 are arranged in a staggered manner; the inlet slot 146 extends to the end of the pumping channel 14; an annular rotating groove 147 is formed in the inner side wall of the air suction channel 14, and the inlet groove 146 and the telescopic groove 143 are respectively communicated with the rotating groove 147; when the inserting pipe 4 is installed, the inserting block 41 is only required to be aligned to the inlet slot 146 of the air exhaust channel 14, and after the inserting block 41 enters the rotating slot 147, the inserting pipe 4 is rotated by a certain angle to prevent the inserting pipe 4 from being separated from the air exhaust channel 14, so that the installation stability of the inserting pipe 4 is ensured, and the detection accuracy of the integral sealing detector is improved.
Example two
On the basis of the first embodiment, the second embodiment further provides a seal detection method of the seal detector, wherein a structure of the seal detector is the same as that of the first embodiment, and is not described herein again. Specifically, a detection method of the seal detector comprises the following steps of sleeving a pipeline of the air suction pump on the insertion pipe 4, and rotating the insertion pipe 4 until the insertion block 41 corresponds to the inlet groove 146; inserting the insertion tube 4 into the air extraction channel 14 until the insertion block 41 enters the rotation groove 147, and rotating the insertion tube 4 until the insertion block 41 corresponds to the telescopic groove 143; the plugging pipe 4 is continuously inserted into the air exhaust channel 14, so that the plugging block 41 pushes the guide block 34 to compress the expansion spring 36, and meanwhile, each plugging block 32 is separated from the plugging groove 142 and is opened outwards; when the insertion block 41 is located at the second insertion groove 145, the insertion tube 4 is rotated until the insertion block 41 is inserted into the second insertion groove 145, so as to prevent the insertion tube 4 from coming off the air exhaust channel 14; after the object to be measured is placed on the positioning table 7, the cover plate 21 is covered, the material pressing cylinder 22 pushes the material pressing plate 23 to press the object to be measured, and the initial position of the material pressing plate 23 corresponding to the dial 12 is recorded; rotating the insertion tube 4 to make the insertion block 41 return to the telescopic slot 143, and continuing to insert the insertion tube 4; when the insertion block 41 is located at the position of the first insertion groove 144, the insertion tube 4 is rotated until the insertion block 41 is inserted into the first insertion groove 144, so that the air exhaust channel 14 is kept in conduction; opening an air pump to pump air in the detector body 1 so as to enable the interior of the detector body 1 to form negative pressure; the plug pipe 4 is retracted to the plug block 41 and is clamped into the second plug groove 145 again, the expansion spring 36 rebounds to drive the blocking block 32 to retract into the blocking groove 142, and the air suction channel 14 is blocked by the blocking blocks 32; the material pressing cylinder 22 continues to drive the material pressing plate 23 to press the object to be tested, meanwhile, the rotating block 51 slides along the limiting groove 521, so that the material pressing plate 23 rotates, the contact point of the transposition lug 6 and the object to be tested continuously changes, and after the transposition lug 6 rotates and presses for multiple times, the final position of the material pressing plate 23 corresponding to the scale plate is recorded; comparing whether the final position is the same as the initial position.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An adjustable seal detector, comprising:
the detector comprises a detector body (1), a pressing part (2) arranged in the detector body (1) and a rotating part (5) arranged at the movable end of the pressing part (2); and
the detector body (1) is provided with an air extracting channel (14) suitable for being connected with an air extracting pump, and the air extracting pump is suitable for extracting air in the detector body (1);
the pressing part (2) is suitable for pressing an object to be detected, a transposition lug (6) is arranged at the bottom of the pressing part (2), and the transposition lug (6) deviates from the center of the pressing part (2); wherein
After the transposition lug (6) is contacted with the object to be detected, the rotating part (5) can be linked with the transposition lug (6) to rotate along the surface of the object to be detected.
2. The adjustable seal detector of claim 1,
the top of the detector body (1) is provided with a covering groove (13);
the pressing part (2) comprises a cover plate (21) matched with the covering groove (13), a pressing cylinder (22) arranged at the bottom of the cover plate (21) and a pressing plate (23) arranged at the movable end of the pressing cylinder (22); wherein
After the cover plate (21) is covered in the covering groove (13), the material pressing cylinder (22) can drive the material pressing plate (23) to press an object to be detected.
3. The adjustable seal detector according to claim 2,
the rotating part (5) is positioned between the movable end of the pressing cylinder (22) and the pressing plate (23), the transposition lug (6) is fixedly connected to the bottom of the pressing plate (23), the transposition lug (6) deviates from the central axis of the pressing plate (23), and the transposition lug (6) is positioned between the movable end of the pressing cylinder (22) and the pressing plate (23), wherein
After the transposition lug (6) is contacted with an object to be detected, the rotating part (5) can be linked with the pressure plate (23) to rotate, so that the transposition lug (6) rotates.
4. The adjustable seal detector according to claim 3,
the rotating part (5) comprises a rotating block (51) fixedly connected to the outer side wall of the movable end of the material pressing cylinder (22) and a lower rotating sleeve (52) fixedly connected to the center of the top end face of the material pressing plate (23); and
the inner side wall of the lower rotating sleeve (52) is provided with a limit groove (521) matched with the rotating block (51);
the arc center angle of the limiting groove (521) on the horizontal projection plane is not less than 90 degrees; wherein
After the transposition lug (6) is contacted with an object to be detected, the rotating block (51) can slide along the limiting groove (521) and push the lower rotating sleeve (52) to rotate.
5. The adjustable seal detector of claim 4,
the limiting groove (521) is spiral.
6. The adjustable seal detector of claim 5,
an upper rotating sleeve (53) is sleeved at the movable end of the material pressing cylinder (22), and the upper rotating sleeve (53) is positioned above the lower rotating sleeve (52); and
a rotating spring (54) is arranged between the upper rotating sleeve (53) and the lower rotating sleeve (52); wherein
After the transposition lug (6) is contacted with an object to be tested, the upper rotating sleeve (53) can compress the rotating spring (54);
after the transposition lug (6) is separated from the object to be measured, the rotating spring (54) rebounds to enable the lower rotating sleeve (52) to be far away from the upper rotating sleeve (53).
7. The adjustable seal detector of claim 6,
the bottom end surface of the upper rotating sleeve (53) is provided with an annular upper clamping groove (531), and the upper end surface of the lower rotating sleeve (52) is provided with an annular lower clamping groove (522);
two ends of the rotating spring (54) are respectively clamped in the upper clamping groove (531) and the lower clamping groove (522).
8. The adjustable seal detector of claim 7,
the transposition lug (6) is provided with a spherical surface, and the spherical surface is in contact with the object point to be detected.
9. The adjustable seal detector of claim 8,
the inner bottom wall of the detector body (1) is provided with a positioning table (7), and the upper end surface of the positioning table (7) is provided with a positioning groove (71) suitable for positioning an object to be detected.
10. A method for detecting a seal of an adjustable seal detector, comprising the adjustable seal detector according to claim 9;
placing an object to be tested on the positioning table (7), covering the cover plate (21), pushing the material pressing plate (23) to press the object to be tested through the material pressing cylinder (22), and recording the initial position of the material pressing plate (23);
connecting an air pump to the air extraction channel (14), and extracting air in the detector body (1) through the air pump so as to form negative pressure in the detector body (1);
the material pressing plate (23) is continuously driven to press the object to be detected through the material pressing cylinder (22), and the rotating block (51) slides along the limiting groove (521) to enable the material pressing plate (23) to rotate;
the contact point of the transposition lug (6) and the object to be detected is changed continuously, and the final position of the pressure plate (23) is recorded;
comparing whether the final position is the same as the initial position.
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| DE4230025A1 (en) * | 1992-09-10 | 1994-03-17 | Jagenberg Ag | Method and device for checking the tightness of filled containers closed with a sealed or welded-on lid or the like |
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Address after: 213000 9, Yang Road, West Taihu science and technology industry, Changzhou, Jiangsu Patentee after: Jiangsu Kebiao Medical Technology Group Co.,Ltd. Address before: 213000 9, Yang Road, West Taihu science and technology industry, Changzhou, Jiangsu Patentee before: Jiangsu science standard medical testing Co.,Ltd. |