CN211651989U - A handheld frock that is used for annular face shutoff and inflatable test gas tightness - Google Patents
A handheld frock that is used for annular face shutoff and inflatable test gas tightness Download PDFInfo
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- CN211651989U CN211651989U CN202020530886.1U CN202020530886U CN211651989U CN 211651989 U CN211651989 U CN 211651989U CN 202020530886 U CN202020530886 U CN 202020530886U CN 211651989 U CN211651989 U CN 211651989U
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- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 238000009423 ventilation Methods 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
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Abstract
The utility model provides a handheld frock that is used for annular face shutoff and inflatable test gas tightness, include: the air cylinder comprises a ventilation ejector rod, a plugging rubber sleeve, an air cylinder rod and an air cylinder barrel; the cylinder barrel is sleeved outside the cylinder rod, and the front part of the rod body of the cylinder rod is in sealing sliding connection with the small-diameter section of the cylinder barrel hole; the piston disc body of the cylinder rod is in sealing sliding connection with the large-diameter section of the cylinder bore of the cylinder barrel; the front part of the rod body of the air cylinder rod is hermetically and spirally connected with the tail part of the ventilation ejector rod, the first axial through hole and the second axial through hole are coaxially communicated, the ventilation ejector rod is sleeved with a plugging rubber sleeve, and two ends of the plugging rubber sleeve are respectively attached to a first annular stop shoulder of the ventilation ejector rod and a second annular stop shoulder of the air cylinder barrel; the first electromagnetic valve connected with a driving air source is communicated with the miniature joint through hole on the piston disc body through a driving pipeline; the second electromagnetic valve connected with an inflation gas source is communicated with the second axial center through hole of the cylinder rod through an inflation pipeline. The utility model discloses it is easy and simple to handle, avoid injuries such as colliding with, scratch.
Description
Technical Field
The utility model belongs to the technical field of the airtight test of annular face shutoff, a interior expanding shutoff is related to and the handheld frock of test testee gas tightness can ventilate.
Background
If leakage occurs during the use of the closed container and the leakage exceeds the allowable range, not only the quality of the product is affected, but also serious consequences such as explosion, fire, harmful gas overflow and the like can be caused, so that the process of checking whether the sealing performance of the closed product is good or not is necessary and not ignored for the closed product.
At present, there are various technologies for detecting the tightness of a sealed container, and the tightness detection technology is an intuitive and commonly used detection technology. The method has the advantages of convenient automation implementation, time end detection, high stability and reliability, quick test time, capability of keeping the tested workpiece in a dry state, no pollution and the like. The air tightness detector is specially applied to the tightness detection of cavity mechanical products, and is used in the production of automobile engines, gearboxes, axles, water tanks, oil tanks and the like with sealing requirements on accommodating cavities. The tightness detection of the water tank and the oil tank is important for the safety of the automobile, and the tightness detection can be used for testing the automobile. The problem that how to seal the fuel tank opening is necessary to be solved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a handheld frock that is used for the shutoff of toroidal surface and inflatable test gas tightness has solved how the shutoff of toroidal surface (like the oil tank mouth) and the problem of test. The tool can be suitable for most of measured workpieces with annular surfaces in reasonable sizes, and is particularly suitable for detection operation of the airtightness of an oil tank opening of an automobile oil tank. The method specifically comprises the following steps:
a handheld frock that is used for the plugging of toroidal surface and inflatable test gas tightness includes:
the ventilation ejector rod is provided with a first axial through hole, and the middle part of the outer wall of the ventilation ejector rod is provided with a first annular retaining shoulder;
the tail part of the rubber sleeve body of the plugging rubber sleeve is provided with an annular rubber sleeve retaining shoulder;
the cylinder rod is provided with a second axial center through hole, the middle part of the rod body is provided with a piston disc body, and the piston disc body is provided with a micro joint through hole in a penetrating way;
the cylinder hole of the cylinder barrel comprises a small-diameter section and a large-diameter section, and a second annular retaining shoulder is arranged at an opening at the front end of the cylinder wall of the small-diameter section;
the cylinder barrel is sleeved outside the cylinder rod, and the front part of the rod body of the cylinder rod is sleeved in the small-diameter section of the cylinder barrel hole and is in sealing sliding connection with the small-diameter section;
the piston disc body of the cylinder rod is sleeved in the large-diameter section of the cylinder hole of the cylinder barrel and is in sealing sliding connection with the large-diameter section;
the front part of the rod body of the air cylinder rod is hermetically and spirally connected with the tail part of the ventilation ejector rod, the first axial through hole and the second axial through hole are coaxially communicated, the ventilation ejector rod is sleeved with the plugging rubber sleeve, and two ends of the plugging rubber sleeve are respectively attached to a first annular stop shoulder of the ventilation ejector rod and a second annular stop shoulder of the air cylinder barrel;
the first electromagnetic valve connected with a driving air source is communicated with a miniature joint through a driving pipeline, and the miniature joint is communicated and installed with a miniature joint through hole which is communicated with and arranged on the piston disc body;
and a second electromagnetic valve connected with an inflation gas source is communicated with one end of the air pipe joint through an inflation pipeline, and the other end of the air pipe joint is hermetically connected with a second axle center through hole of the air cylinder rod.
Furthermore, the ventilation ejector rod is also sleeved with an annular gasket, the gasket is arranged between the plugging rubber sleeve and a second annular blocking shoulder of the cylinder barrel, and the aperture of a through hole of the gasket is matched with the outer diameter of the rod body at the tail part of the ventilation ejector rod.
Furthermore, the periphery of the piston disc body is also provided with a ring groove for mounting a third O-shaped ring.
Further, the handle sleeve is provided with a cylinder accommodating hole; the handle sleeve is slidably sleeved in the large-diameter section of the cylinder barrel, the tail part of the rod body of the cylinder rod is arranged in a containing barrel hole of the handle sleeve, and the front end surface of the handle sleeve is fixedly connected with the rear end surface of the piston disk body.
Furthermore, a long guide hole with the length direction parallel to the axis of the cylinder hole is formed in the cylinder wall of the large-diameter section of the cylinder barrel, and a limit screw matched with the long guide hole is arranged on the handle sleeve.
Further, the handle sleeve is also provided with a handle mounting hole for mounting a handle; the tail end of the cylinder wall is connected with a button cover; the handle is provided with a central through hole, and the inflation pipeline and the driving pipeline respectively penetrate through the central through hole of the handle.
Further, the cylinder wall of the small-diameter section of the cylinder barrel is further provided with a vent hole, a second O-shaped ring is arranged between the front part of the rod body of the cylinder rod and the cylinder wall of the small-diameter section, and the vent hole is arranged between the second O-shaped ring and the second annular retaining shoulder.
The utility model discloses it is easy and simple to handle, insert the toroidal surface of measured object with it by the operator is handheld, then press the shutoff that start button can realize the toroidal surface. The specific plugging principle of the tool is that the annular surface of a measured object is plugged by adopting rubber ring compression deformation expansion sealing, so that the damages such as collision, scratch and the like to the surface of the measured object are avoided. The air-tight leakage detector can detect the internal pressure change of the measured object to judge whether the tightness is good or not.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a perspective view of the tooling;
FIG. 2 is a schematic cross-sectional view of the present tool;
FIG. 3 is a schematic cross-sectional view of the initial state of the tool for plugging a tested piece pipe orifice;
FIG. 4 is a schematic cross-sectional view of a plugging state of the tool for plugging a tested piece pipe orifice;
fig. 5a and 5b are a perspective view and a sectional view of the vent rod 5, respectively;
fig. 6a and 6b are a perspective view and a cross-sectional view of the plugging rubber sleeve 12, respectively;
fig. 7a and 7b are a perspective and a sectional schematic view, respectively, of the cylinder rod 1;
fig. 8a and 8b are schematic perspective and sectional views of the cylinder tube 11, respectively;
fig. 9a and 9b are perspective and sectional views, respectively, of the handle sleeve 3.
The main components in the figures are denoted by the reference numerals: 1-cylinder rod, 2-handle, 3-handle sleeve, 4-button cover, 5-ventilation ejector rod, 6-second O-shaped ring, 7-air pipe joint, 8-inner hexagonal cylindrical screw, 9-sheathed pipe joint, 10-micro joint, 11-cylinder barrel, 12-blocking rubber sleeve, 13-first O-shaped ring, 14-gasket, 15-limit screw, 16-tested sample piece, 17-third O-shaped ring, 18-button, 19-tested piece, 20-air cavity, 21-driving pipeline, 22-inflation pipeline, 23-first electromagnetic valve, 24-second electromagnetic valve, 25-driving air source and 26-inflation air source.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in the figure, the utility model discloses a core component of handheld frock includes: the device comprises a ventilation ejector rod 5, a cylinder rod 1, a cylinder barrel 11, a plugging rubber sleeve 12 and a handle sleeve 3;
referring to fig. 5a and 5b, the ventilation mandril 5 is provided with a first axial through hole 501, the middle part of the outer wall is provided with a first annular shoulder 502, and the tail part is provided with an external thread section 503;
referring to fig. 6a and 6b, an annular rubber sleeve blocking shoulder 122 is arranged at the tail of the rubber sleeve body 121 of the plugging rubber sleeve 12;
referring to fig. 7a and 7b, a second axial through hole 101 is formed in the cylinder rod 1, a piston disc 102 is arranged in the middle of the rod body, a micro joint through hole 1021 with an internal thread end is formed in the piston disc 102 in a penetrating manner, and a ring groove 1022 for mounting a third O-ring 17 is further formed in the periphery of the piston disc;
the front end of the second axial through hole 101 in the front part 103 of the rod body is provided with an internal thread section 1015 for being in threaded fastening connection with an external thread section 503 at the tail part of the ventilation ejector rod 5, namely the ventilation ejector rod 5 is in sequential threaded sealing connection with the cylinder rod 1 end to end, so that the first axial through hole 501 and the second axial through hole 101 are communicated with the same axis to form a detection gas channel for passing detection gas, and a first O-shaped ring 13 is arranged between the ventilation ejector rod 5 and the cylinder rod 1 to enhance the sealing property; the front part 103 of the rod body is also provided with a ring groove 1031 for mounting the second O-shaped ring 6;
the tail end of the second axial through hole 101 of the rod body tail part 104 is provided with an internal thread section 1017 for screwing the air pipe joint 7;
referring to fig. 8a and 8b, the bore of the cylinder barrel 11 includes a small diameter section 111 and a large diameter section 112 which are coaxially communicated, a second annular shoulder 1111 is arranged at an opening at the front end of the bore of the small diameter section 111, and a long guide hole 1121 is arranged on the bore of the large diameter section 112, the length direction of which is parallel to the axis of the bore;
referring to fig. 9a and 9b, the handle sleeve 3 has a cylinder accommodating hole 301, a screw hole 3015 for installing the limit screw 15 is arranged on the upper side of the cylinder wall, and a handle installing hole 302 for installing the handle 2 is arranged on the lower side of the cylinder wall; the tail end of the cylinder wall is provided with an installation screw hole 304 for connecting the button cover 4;
the cylinder barrel 11 is sleeved outside the cylinder rod 1, the rod body front part 103 of the cylinder rod 1 is sleeved in the small-diameter section 111 of the barrel hole of the cylinder barrel 11 and is in sliding seal with the small-diameter section, and a second O-shaped ring 6 is arranged between the rod body front part and the barrel wall of the small-diameter section 111 for enhancing the sealing property; preferably, the cylinder wall of the small-diameter section is further provided with a vent hole 1112 (see fig. 8b), the vent hole 1112 is arranged between the second O-ring 6 and the second annular shoulder 1111, and the vent hole 1112 is used for preventing the cylinder rod 1 from receiving negative pressure resistance during movement in the small-diameter section;
the piston disc body 102 of the cylinder rod 1 is sleeved in the large-diameter section 112 of the cylinder hole of the cylinder barrel 11 and is in sliding seal with the large-diameter section, and a third O-shaped ring 17 is arranged between the piston disc body 102 and the cylinder wall of the large-diameter section for enhancing the sealing property;
the front part 103 of the rod body of the air cylinder rod 1 is hermetically and spirally connected with the tail part of the ventilation ejector rod 5, the plugging rubber sleeve 12 is sleeved on the ventilation ejector rod 5, the front end surface of the plugging rubber sleeve 12 is attached to a first annular blocking shoulder 502 of the ventilation ejector rod 5, and the rear end surface of the annular rubber sleeve blocking shoulder 122 at the tail end is attached to the front end surface of a second annular blocking shoulder 1111 of the air cylinder barrel 11;
preferably, the ventilation ejector rod 5 is further sleeved with an annular gasket 14, the gasket 14 is arranged between the plugging rubber sleeve 12 and the second annular shoulder 1111 of the cylinder barrel 11, the aperture of a through hole of the gasket 14 is matched with the outer diameter of a rod body at the tail part of the ventilation ejector rod, and the situation that the hole wall of the through hole at the tail end of the plugging rubber sleeve 12 is extruded into a small-diameter section of the cylinder barrel 11, so that damage and even poor sealing are caused;
the handle sleeve 3 is slidably sleeved in the large-diameter section of the cylinder barrel 11, the tail part 104 of the rod body of the cylinder rod 1 is arranged in the containing barrel hole 301 of the handle sleeve 3, and the front end surface of the handle sleeve 3 is attached to the rear end surface of the piston disc body 102 and fixedly connected with the rear end surface, so that the handle sleeve 3 and the piston disc body 102 slide synchronously in the large-diameter section of the barrel hole of the cylinder barrel 11;
preferably, in order to avoid the separation from the cylinder hole of the air outlet cylinder barrel 11 caused by autorotation and overlong sliding distance, the cylinder wall of the large-diameter section 112 is provided with a long strip guide hole 1121 the length direction of which is parallel to the axis of the cylinder hole, and the handle sleeve is provided with a limit screw 15 matched with the long strip guide hole 1121;
the first electromagnetic valve 23 connected with the driving air source 25 is communicated with the miniature joint 10 through the driving pipeline 21, and the miniature joint 10 is communicated and installed and communicated with a miniature joint through hole 1021 formed in the piston disc body 102;
a second electromagnetic valve 24 connected with an inflation gas source 26 is communicated with one end of the air pipe joint 7 through an inflation pipeline 22, and the other end of the air pipe joint 7 is hermetically connected with a detection gas channel, namely a second axial center through hole 101 of the cylinder rod 1;
preferably, the handle has a central through hole, and the inflation line and the driving line respectively pass through the central through hole of the handle.
The action principle and the process are as follows: the principle of the tool is that the plugging rubber sleeve 12 is extruded to deform the rubber sleeve body, so that a plugging effect is generated. The tool achieves on-off control of a driving air source 25 and an inflation air source 26 through a first electromagnetic valve and a second electromagnetic valve (23 and 24).
Under the normal state, as shown in fig. 3, the air source cannot pass through the electromagnetic valve, and the plugging cannot be realized.
As shown in fig. 4, in the initial plugging state, the first electromagnetic valve 23 is actuated by pressing the button 18, the driving air source 25 enters the air cavity 20 formed between the front disc surface of the piston disc body and the cylinder barrel through the first electromagnetic valve 23, the driving pipeline 21 and the micro connector 10, the air pushes the cylinder rod 1 to move backwards due to the sealing action of the O-ring 6 and the O-ring 7, the cylinder rod 1 and the ventilation ejector rod 5 are fixedly connected, and the ventilation ejector rod 5 is pulled to move backwards together (the compression amount of the plugging rubber sleeve 12 can be limited by the limit screw 15), so that the plugging rubber sleeve 12 is extruded to deform. As shown in fig. 4, the inner wall of the tested sample is pressed and attached to achieve the plugging effect. After delaying a few seconds, the second electromagnetic valve 24 acts, and the inflation gas source 26 can inflate the interior of the tested piece through the inflation pipeline 22, the air pipe joint 7 and the ventilation ejector rod 5, so that the tightness of the tested piece is tested. After the detection is finished, the button 18 is pressed, the second electromagnetic valve 24 acts firstly to exhaust the test gas in the tested piece, the first electromagnetic valve 23 acts to exhaust the gas in the air cavity 20, and the plugging rubber sleeve recovers the original form through self restoring force.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A handheld frock that is used for annular face shutoff and inflatable test gas tightness, its characterized in that includes:
the ventilation ejector rod is provided with a first axial through hole, and the middle part of the outer wall of the ventilation ejector rod is provided with a first annular retaining shoulder;
the tail part of the rubber sleeve body of the plugging rubber sleeve is provided with an annular rubber sleeve retaining shoulder;
the cylinder rod is provided with a second axial center through hole, the middle part of the rod body is provided with a piston disc body, and the piston disc body is provided with a micro joint through hole in a penetrating way;
the cylinder hole of the cylinder barrel comprises a small-diameter section and a large-diameter section, and a second annular retaining shoulder is arranged at an opening at the front end of the cylinder wall of the small-diameter section;
the cylinder barrel is sleeved outside the cylinder rod, and the front part of the rod body of the cylinder rod is sleeved in the small-diameter section of the cylinder barrel hole and is in sealing sliding connection with the small-diameter section;
the piston disc body of the cylinder rod is sleeved in the large-diameter section of the cylinder hole of the cylinder barrel and is in sealing sliding connection with the large-diameter section;
the front part of the rod body of the air cylinder rod is hermetically and spirally connected with the tail part of the ventilation ejector rod, the first axial through hole and the second axial through hole are coaxially communicated, the ventilation ejector rod is sleeved with the plugging rubber sleeve, and two ends of the plugging rubber sleeve are respectively attached to a first annular stop shoulder of the ventilation ejector rod and a second annular stop shoulder of the air cylinder barrel;
the first electromagnetic valve connected with a driving air source is communicated with the miniature joint through hole on the piston disc body through a driving pipeline;
the second electromagnetic valve connected with an inflation gas source is communicated with the second axial center through hole of the cylinder rod through an inflation pipeline.
2. The handheld tool for annular surface plugging and inflatable air tightness testing according to claim 1, wherein the ventilation ejector rod is further sleeved with an annular gasket, the gasket is arranged between the plugging rubber sleeve and the second annular retaining shoulder of the cylinder barrel, and the aperture of a through hole of the gasket is matched with the outer diameter of a rod body at the tail part of the ventilation ejector rod.
3. The handheld tool for annular surface plugging and inflatable air tightness testing according to claim 1, wherein a ring groove for mounting a third O-ring is further formed in the peripheral side of the piston disc body.
4. The hand-held tool for annular face plugging and inflatable air tightness testing according to claim 1, further comprising a handle sleeve having a receiving sleeve hole; the handle sleeve is slidably sleeved in the large-diameter section of the cylinder barrel, the tail part of the rod body of the cylinder rod is arranged in a containing barrel hole of the handle sleeve, and the front end surface of the handle sleeve is fixedly connected with the rear end surface of the piston disk body.
5. The handheld tool for annular surface plugging and inflatable air tightness testing according to claim 4, wherein the cylinder wall of the large-diameter section of the cylinder barrel is provided with a long guide hole with the length direction parallel to the axis of the barrel hole, and the handle sleeve is provided with a limit screw matched with the long guide hole.
6. The handheld tool for plugging the annular surface and testing the air tightness in an inflatable manner according to claim 4, wherein the handle sleeve is further provided with a handle mounting hole for mounting a handle; the tail end of the cylinder wall is connected with a button cover; the handle is provided with a central through hole, and the inflation pipeline and the driving pipeline respectively penetrate through the central through hole of the handle.
7. The handheld tool for annular surface plugging and inflatable air tightness testing according to claim 1, wherein a vent hole is further formed in the cylinder wall of the small-diameter section of the cylinder barrel, a second O-shaped ring is arranged between the front portion of the rod body of the cylinder rod and the cylinder wall of the small-diameter section, and the vent hole is formed between the second O-shaped ring and the second annular retaining shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020530886.1U CN211651989U (en) | 2020-04-13 | 2020-04-13 | A handheld frock that is used for annular face shutoff and inflatable test gas tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020530886.1U CN211651989U (en) | 2020-04-13 | 2020-04-13 | A handheld frock that is used for annular face shutoff and inflatable test gas tightness |
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| Publication Number | Publication Date |
|---|---|
| CN211651989U true CN211651989U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020530886.1U Active CN211651989U (en) | 2020-04-13 | 2020-04-13 | A handheld frock that is used for annular face shutoff and inflatable test gas tightness |
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| CN (1) | CN211651989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022168069A1 (en) * | 2021-02-08 | 2022-08-11 | Intex Industries Xiamen Co. Ltd. | A sealing joint structure for inflation and deflation |
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2020
- 2020-04-13 CN CN202020530886.1U patent/CN211651989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022168069A1 (en) * | 2021-02-08 | 2022-08-11 | Intex Industries Xiamen Co. Ltd. | A sealing joint structure for inflation and deflation |
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