CN108397634B - Water detection choke plug for automobile radiator leakage detection - Google Patents
Water detection choke plug for automobile radiator leakage detection Download PDFInfo
- Publication number
- CN108397634B CN108397634B CN201810379599.2A CN201810379599A CN108397634B CN 108397634 B CN108397634 B CN 108397634B CN 201810379599 A CN201810379599 A CN 201810379599A CN 108397634 B CN108397634 B CN 108397634B
- Authority
- CN
- China
- Prior art keywords
- piston
- wrench
- block
- radiator
- choke plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000009423 ventilation Methods 0.000 claims description 26
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/11—Plugs
- F16L55/1141—Plugs the plug being made of elastic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
-
- 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
Abstract
The invention relates to a water detection choke plug for detecting leakage of an automobile radiator, which is arranged at a pipe orifice of a radiator water inlet pipe (7) and comprises a choke plug rod (1), a wrench (2), a pressing block (3), a cylindrical rubber fixing block (4), a stop block (5) and a nut (6), wherein an air passage (8) is arranged in the choke plug rod (1) along the axial direction, the wrench (2) is connected with the air passage (8), the cylindrical rubber fixing block (4) is arranged between the pressing block (3) and the stop block (5) and is fixed through the nut (6), and a sealing assembly consisting of the pressing block (3), the cylindrical rubber fixing block (4), the stop block (5) and the nut (6) is arranged at the pipe orifice of the radiator water inlet pipe (7). Compared with the prior art, the invention can replace the structure which originally needs a choke plug and an air inlet switch by a choke plug, and has simple structure and low cost.
Description
Technical Field
The invention relates to an automobile radiator, in particular to a water detection choke plug for detecting leakage of the automobile radiator.
Background
The radiator and the intercooler of the automobile are important parts of the automobile. Their main function is to lower the temperature of the internally operating medium (liquid or gas) by taking away heat through heat exchange with the external cooling air. The internally operating media, once leaked, will cause failure of the heat exchange.
Thus, the automobile can not normally run, and even the cylinder is seized and scrapped. Therefore, the automobile radiator and intercooler must be subjected to strict air tightness leakage detection during production and manufacture.
The airtight leakage detection is divided into two types, dry leakage detection and wet leakage detection. The wet leak detection is to seal the water inlet pipe and the water outlet pipe of the radiator by choke plugs, and apply compressed air with certain pressure to the inside of the radiator through the middle axial pipeline of one choke plug. And immersing the radiator in water to observe whether the radiator has bubbles generated due to leakage. While observing the leak site and collecting bubbles to calculate the leak rate.
The airtight leak test requires that all open nozzles of the radiator be sealed quickly and effectively, i.e., that the nozzles be plugged, and that the bulkhead not be ejected when compressed air of test pressure is applied to the inside of the radiator. Wherein at least one of the plugs has a through pipe therein for applying a test pressure to the ventilation of the radiator interior. At the same time, a switch for controlling the compressed air is needed, which can close the compressed air supply when installing the choke plug, and supply air and pressure after the choke plug plugs the pipe orifice.
The present invention relates to a choke plug for detecting leakage of heat exchanger of automobile radiator, such as wind and intercooler, and is characterized by that when the choke plug is used for blocking the inlet and outlet pipe of radiator, the compressed air supply switch is turned on.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a water detection choke plug for detecting the leakage of an automobile radiator.
The aim of the invention can be achieved by the following technical scheme: the water detection choke plug for detecting the leakage of the automobile radiator is arranged at the pipe orifice of the water inlet pipe of the radiator and is characterized by comprising a choke plug rod, a wrench, a pressing block, a cylindrical rubber fixing block, a stop block and a nut, wherein an air passage is arranged in the choke plug rod along the axial direction, the wrench is connected with the air passage, the cylindrical rubber fixing block is arranged between the pressing block and the stop block and is fixed through the nut, and a sealing assembly consisting of the pressing block, the cylindrical rubber fixing block, the stop block and the nut is arranged at the pipe orifice of the water inlet pipe of the radiator;
And pulling the wrench to enable the pressing block to extrude the cylindrical rubber fixing block to radially expand, forming a seal with the inner wall of the radiator water inlet pipe, and simultaneously opening the ventilation pipeline to supply air into the radiator.
The vent pipeline be equipped with one rather than vertically hole, be equipped with spring and the piston of taking the pole that stretches out in this hole, the spring be located piston one side, the pole that stretches out of piston is connected with the spanner, under the conventional state, the piston blocks up vent pipeline and makes it close, when needing to detect leakage, pulls the spanner, pulls the piston and withdraws from, opens vent pipeline.
The piston one side be the spring that makes its reset, the opposite side is equipped with and lets the space, pulls the spanner, pulls the piston to give the space of letting out, perhaps promotes piston extrusion spring, opens the vent line, aerifys in the radiator, detects the leakage condition, detects finishes, pulls the spanner, the piston resets under the effort of spring, blocks up the vent line.
The thickness of the piston is more than or equal to the diameter of the ventilation pipeline.
The top end of the extending rod of the piston is connected with a spanner, the thickness of the contact part of the spanner and the top end of the extending rod of the piston at the locking position and the releasing position of the spanner is different, the top end of the extending rod of the piston is always attached to the inner side surface of the spanner under the action of a spring, and the position of the piston is changed through the change of the position of the attaching point.
The wrench comprises a rotating block part connected with the piston extending rod and a handle part connected with the rotating block part for rotating, wherein the rotating block part is square, and the joint of the rotating block part and the piston extending rod is positioned at one corner of the rotating block part.
The distance h1 between the joint of the rotating block part and the piston extending rod and one side of the rotating block part is 5-10mm, and the distance h2 between the joint of the rotating block part and the other side of the rotating block part is 30-80 mm; when the handle part of the wrench is in a horizontal position, the wrench is in a loosening position, a gap of 0-15 mm is reserved between the bottom of the rotating block part and the pressing block, and when the handle part of the wrench is in a vertical position, the wrench is in a locking position, and the pressing block is extruded by the bottom of the rotating block part, so that the cylindrical rubber fixing block seals the water inlet pipe of the radiator.
One end of the head sealing rod is provided with threads, and the mountable air connector is connected with the air inlet pipe.
Compared with the prior art, the invention has the following advantages:
1. The invention relates to a novel choke plug, which is characterized in that an air inlet channel in the choke plug is closed when a water inlet pipe and a water outlet pipe are not plugged, and an air passage in the choke plug is opened when the water inlet pipe and the water outlet pipe of a radiator are plugged. Therefore, the novel choke plug can replace the structure which originally needs one choke plug and one air inlet switch by one choke plug, and one action of the novel choke plug can finish two actions of using other choke plugs.
2. The bulkhead for detecting the air tightness leakage is used for detecting the air tightness of the automobile radiator and the intercooler. Through actual use, the choke plug for detecting the air tightness and leakage well realizes an opened air inlet pressurizing channel when the handle is rotated to a compression sealing position; and when the sealing position is released, the air inlet channel is closed.
Drawings
FIG. 1 is a schematic view of a bulkhead according to the present invention;
FIG. 2 is a cross-sectional view of the bulkhead of the present invention;
FIG. 3 is a schematic view of the open state structure of the bulkhead vent portion of the present invention;
FIG. 4 is a schematic view of the closed state structure of the bulkhead vent portion of the invention;
FIG. 5 is a schematic diagram of a connection structure between a bulkhead and a heat sink according to the present invention.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Example 1
As shown in fig. 1-2, a water detection choke plug for detecting leakage of an automobile radiator is arranged at a pipe orifice of a radiator water inlet pipe 7 and comprises a choke plug rod 1, a wrench 2, a pressing block 3, a cylindrical rubber fixing block 4, a stop block 5 and a nut 6, wherein a ventilation pipeline 8 is axially arranged inside the choke plug rod 1, the wrench 2 is connected with the ventilation pipeline 8, the cylindrical rubber fixing block 4 is arranged between the pressing block 3 and the stop block 5 and is fixed through the nut 6, and a sealing assembly consisting of the pressing block 3, the cylindrical rubber fixing block 4, the stop block 5 and the nut 6 is arranged at the pipe orifice of the radiator water inlet pipe 7; one end of the head sealing rod 1 is provided with threads, and an installable gas joint is connected with the gas inlet pipe, so that the head sealing rod has the function of inflating and pressurizing the inside of the heat exchanger.
The airtight choke plug can inject gas into the core through the ventilation pipeline 8 in the middle of the choke plug while sealing the inner cavity (such as the core inner cavity of the automobile radiator), thereby realizing the purpose of pressurizing and detecting the heat exchanger.
Unlike the conventional bulkhead, the airtight bulkhead also has a function of opening and closing the internal ventilation pipe 8 (fig. 2). When the airtight bulkhead is not sealed to the heat exchanger, its internal vent line 8 is closed. When the bulkhead is sealed to the heat exchanger (i.e., the wrench 2 is rotated to a position to compress the cylindrical rubber retainer block 4 to radially expand it), the internal vent line 8 is open.
The structure for realizing the function is to control the closing and opening of the ventilation pipeline 8 along the axial direction inside the choke rod 1 of the airtight choke plug through a piston 10. The ventilation pipeline 8 is provided with an inner hole perpendicular to the ventilation pipeline, a spring 9 and a piston 10 with an extension rod are arranged in the inner hole (shown in fig. 3), the spring 9 is arranged on one side of the piston 10, the extension rod of the piston 10 is connected with the wrench 2, one side of the piston 10 is provided with the spring 9 for resetting the piston, the other side of the piston 10 is provided with a relief space 11, the thickness of the piston 10 is larger than or equal to the diameter of the ventilation pipeline 8, the ventilation pipeline 8 is blocked by the piston 10 in a conventional state, when leakage needs to be detected, the wrench 2 is pulled to pull the piston 10 to the relief space 11, or the piston 10 is pushed to squeeze the spring 9 (in the embodiment, the piston is pushed to squeeze the spring to open the ventilation pipeline 8, as shown in fig. 3), the ventilation pipeline 8 is opened, the radiator is inflated, the leakage condition is detected, after detection is finished, the wrench 2 is pulled, and the piston 10 is reset under the acting force of the spring 9 to block the ventilation pipeline 8 (shown in fig. 4).
The wrench 2 comprises a rotating block part 21 connected with a piston extending rod and a handle part 22 connected with the rotating block part for rotation, wherein the rotating block part 21 is square, and the joint of the rotating block part 21 and the piston extending rod is positioned at one corner of the rotating block part 21.
The distance h1 between the joint 23 of the rotating block part 21 and the piston extending rod and one side of the rotating block part 21 is 5-10mm, and the distance h2 between the joint and the other side which is vertically connected is 30-80 mm; when the handle part 22 of the wrench 2 is in the horizontal position, the wrench 2 is in the loosening position, a gap of 0-15 mm is reserved between the bottom of the rotating block part 21 and the pressing block 3, and when the handle part 22 of the wrench 2 is in the vertical position, the wrench 2 is in the locking position, and the bottom of the rotating block part 21 presses the pressing block 3, so that the cylindrical rubber fixing block 4 seals the radiator water inlet pipe 7.
The top end of the extending rod of the piston 10 is connected with the wrench 2, the thickness of the contact part of the wrench 2 and the top end of the extending rod of the piston 10 at the locking position and the releasing position of the wrench 2 is different, the top end of the extending rod of the piston is always attached to the inner side surface of the wrench 2 under the action of the spring 9, and the position of the piston 10 is changed through the change of the position of the attachment point.
One of the functions of the handle of the airtight choke plug is to jack up the pressing block to compress the cylindrical rubber fixing block so that the cylindrical rubber fixing block expands along the radial direction to seal the airtight choke plug and the water (gas) inlet and outlet pipes of the heat exchanger. And secondly, the piston rod is pushed to move, and the position of the piston is changed, so that an air inlet channel in the airtight choke plug is opened or closed.
The sealing function is to rotate the wrench 2 by 90 degrees, and the pressing block axially compresses the cylindrical rubber fixing block by utilizing the cam principle until the cylindrical rubber fixing block expands radially, so that the cylindrical rubber fixing block and the inner wall of the water inlet and outlet pipe of the heat exchanger form a seal.
Wherein the sealing effect is achieved by the steps of: the spanner 2 is pulled to enable the pressing block 3 to press the cylindrical rubber fixing block 4 to radially expand, the pressing block and the inner wall of the radiator water inlet pipe 7 form a seal, and meanwhile the ventilation pipeline 8 is opened to feed air into the radiator.
The bulkhead for detecting the air tightness leakage is used for detecting the air tightness of the automobile radiator and the intercooler. When the plug 12 of the present invention is used for a radiator, as shown in fig. 5, the plug is inserted into the pipe opening of the radiator inlet pipe 7 of the radiator 13 along the air inlet direction. Through actual use, the choke plug for detecting the air tightness and leakage well realizes an opened air inlet pressurizing channel when the handle is rotated to a compression sealing position; and when the sealing position is released, the air inlet channel is closed. Meets the design requirement.
Claims (5)
1. The water detection choke plug for detecting the leakage of the automobile radiator is arranged at the pipe orifice of a radiator water inlet pipe (7), and is characterized by comprising a choke plug rod (1), a wrench (2), a pressing block (3), a cylindrical rubber fixing block (4), a stop block (5) and a nut (6), wherein a ventilation pipeline (8) is axially arranged inside the choke plug rod (1), the wrench (2) is connected with the ventilation pipeline (8), the cylindrical rubber fixing block (4) is arranged between the pressing block (3) and the stop block (5) and is fixed through the nut (6), and a sealing assembly consisting of the pressing block (3), the cylindrical rubber fixing block (4), the stop block (5) and the nut (6) is arranged at the pipe orifice of the radiator water inlet pipe (7);
Pulling the wrench (2) to enable the pressing block (3) to squeeze the cylindrical rubber fixing block (4) to radially expand to form a seal with the inner wall of the radiator water inlet pipe (7), and simultaneously opening the ventilation pipeline (8) to feed air into the radiator;
an inner hole perpendicular to the ventilation pipeline (8) is formed in the ventilation pipeline (8), a spring (9) and a piston (10) with an extension rod are arranged in the inner hole, the spring (9) is positioned on one side of the piston (10), the extension rod of the piston (10) is connected with a wrench (2), the ventilation pipeline (8) is blocked by the piston (10) to be closed in a conventional state, and when leakage needs to be detected, the wrench (2) is pulled to pull the piston (10) to withdraw, and the ventilation pipeline (8) is opened;
One side of the piston (10) is provided with a spring (9) for resetting the piston, the other side of the piston is provided with a back-off space (11), the spanner (2) is pulled, the piston (10) is pulled to the back-off space (11), or the piston (10) is pushed to press the spring (9), the ventilation pipeline (8) is opened, the radiator is inflated, the leakage condition is detected, the spanner (2) is pulled after the detection is finished, and the piston (10) is reset under the acting force of the spring (9) to block the ventilation pipeline (8);
The top end of the extending rod of the piston (10) is connected with the wrench (2), the thickness of the contact part of the wrench (2) and the top end of the extending rod of the piston (10) at the locking position and the releasing position of the wrench (2) is different, the top end of the extending rod of the piston is always attached to the inner side surface of the wrench (2) under the action of the spring (9), and the position of the piston (10) is changed through the change of the position of the attaching point.
2. The water detection bulkhead for detecting the leakage of the automobile radiator according to claim 1, wherein the thickness of the piston (10) is larger than or equal to the diameter of the ventilation pipeline (8).
3. A water detection bulkhead for detecting leakage of a radiator of an automobile according to claim 1, wherein the wrench (2) comprises a rotating block part (21) connected with the piston extension rod and a handle part (22) connected with the rotating block part for rotating, the rotating block part (21) is square, and a joint with the piston extension rod is positioned at one corner of the rotating block part (21).
4. A water detection bulkhead for detecting leakage of an automobile radiator according to claim 3, wherein the distance h1 between the joint (23) of the rotary block part (21) and the piston extension rod and one side of the rotary block part (21) is 5-10mm, and the distance h2 between the joint and the other side is 30-80 mm; when the handle part (22) of the wrench (2) is positioned at the horizontal position, the wrench (2) is at the loosening position, a gap of 0-15 mm is reserved between the bottom of the rotating block part (21) and the pressing block (3), and when the handle part (22) of the wrench (2) is positioned at the vertical position, the wrench (2) is at the locking position, and the pressing block (3) is extruded by the bottom of the rotating block part (21), so that the cylindrical rubber fixing block (4) seals the radiator water inlet pipe (7).
5. A water detection choke plug for detecting leakage of an automobile radiator according to claim 1, wherein one end of the choke plug rod (1) is provided with threads, and an air connector can be installed to be connected with an air inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379599.2A CN108397634B (en) | 2018-04-25 | 2018-04-25 | Water detection choke plug for automobile radiator leakage detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379599.2A CN108397634B (en) | 2018-04-25 | 2018-04-25 | Water detection choke plug for automobile radiator leakage detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108397634A CN108397634A (en) | 2018-08-14 |
| CN108397634B true CN108397634B (en) | 2024-04-19 |
Family
ID=63099340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810379599.2A Active CN108397634B (en) | 2018-04-25 | 2018-04-25 | Water detection choke plug for automobile radiator leakage detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108397634B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637040B (en) * | 2020-06-12 | 2024-02-27 | 法拉达汽车散热器（天津）有限公司 | Pipe belt type automobile radiator special water chamber water detection leakage quick inflation connector |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135778Y (en) * | 1992-10-06 | 1993-06-09 | 国营第四八二厂 | Air-tightness tester for electric accumulator |
| CN2347140Y (en) * | 1998-09-22 | 1999-11-03 | 交通部重庆公路科学研究所 | Device of detecting auto's cylinder pressure and gas leakage volumn |
| CN102481982A (en) * | 2009-07-10 | 2012-05-30 | 空中客车运营简化股份公司 | Device for closing fuel-dump circuit of an aircraft |
| CN102680189A (en) * | 2012-05-10 | 2012-09-19 | 黄山科能汽车散热器有限公司 | Leakage detecting device |
| CN103486286A (en) * | 2013-09-23 | 2014-01-01 | 苏州华恒医用器械有限公司 | Wrench switch |
| EP2738439A1 (en) * | 2012-11-29 | 2014-06-04 | IK-UK Limited | Anchor apparatus |
| CN203657973U (en) * | 2013-11-27 | 2014-06-18 | 上海德朗汽车零部件制造有限公司 | Safe leakage detection device to prevent accident pop-up |
| CN106066229A (en) * | 2016-06-06 | 2016-11-02 | 江苏武进不锈股份有限公司 | Simple type steel pipe air seal test outlet closing device |
| CN208281698U (en) * | 2018-04-25 | 2018-12-25 | 上海德朗汽车零部件制造有限公司 | Water inspection for automobile radiators leak detection is silently |
-
2018
- 2018-04-25 CN CN201810379599.2A patent/CN108397634B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135778Y (en) * | 1992-10-06 | 1993-06-09 | 国营第四八二厂 | Air-tightness tester for electric accumulator |
| CN2347140Y (en) * | 1998-09-22 | 1999-11-03 | 交通部重庆公路科学研究所 | Device of detecting auto's cylinder pressure and gas leakage volumn |
| CN102481982A (en) * | 2009-07-10 | 2012-05-30 | 空中客车运营简化股份公司 | Device for closing fuel-dump circuit of an aircraft |
| CN102680189A (en) * | 2012-05-10 | 2012-09-19 | 黄山科能汽车散热器有限公司 | Leakage detecting device |
| EP2738439A1 (en) * | 2012-11-29 | 2014-06-04 | IK-UK Limited | Anchor apparatus |
| CN103486286A (en) * | 2013-09-23 | 2014-01-01 | 苏州华恒医用器械有限公司 | Wrench switch |
| CN203657973U (en) * | 2013-11-27 | 2014-06-18 | 上海德朗汽车零部件制造有限公司 | Safe leakage detection device to prevent accident pop-up |
| CN106066229A (en) * | 2016-06-06 | 2016-11-02 | 江苏武进不锈股份有限公司 | Simple type steel pipe air seal test outlet closing device |
| CN208281698U (en) * | 2018-04-25 | 2018-12-25 | 上海德朗汽车零部件制造有限公司 | Water inspection for automobile radiators leak detection is silently |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108397634A (en) | 2018-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108397634B (en) | Water detection choke plug for automobile radiator leakage detection | |
| CN201326869Y (en) | Inflatable closure plug | |
| CN111520566A (en) | A interior expanding end cap for pipeline leakproofness detects | |
| CN106523569B (en) | Oil gas shock mitigation system | |
| CN108871700B (en) | Ship stern shaft seal inspection device | |
| CN208281698U (en) | Water inspection for automobile radiators leak detection is silently | |
| CN105465434B (en) | A kind of rapid intercepting device for high-pressure nozzle | |
| CN108999976B (en) | Single-side installation sealing plug | |
| CN106441717B (en) | The pressure testing plug of heat exchanger tube | |
| CN101886965B (en) | Tubing head lateral wing pressure test tool | |
| CN216201346U (en) | Heating valve with high leakproofness | |
| CN213206944U (en) | A interior expanding end cap for pipeline leakproofness detects | |
| CN202056394U (en) | Quick air release valve | |
| CN115200803A (en) | Manual type air sealing and blocking device | |
| CN210180768U (en) | Closed camera bellows gas sampler | |
| CN209055282U (en) | A kind of engine cylinder cap cam hole oil duct side leakage plugging device | |
| CN201688947U (en) | Pressure-testing tool for tubing head flank | |
| CN106226007A (en) | Pipe end pressure-detecting device | |
| CN206269969U (en) | The pressure testing plug of heat exchanger tube | |
| CN111637039A (en) | Special quick gas-filled joint is examined to special hydroecium water of pipe strap formula auto radiator | |
| CN205670069U (en) | Blast furnace copper cooling stave hydraulic pressure pressure testing device | |
| CN213714081U (en) | Novel high pressure double containment end cap for helium testing | |
| CN109612657B (en) | Steam pipeline leakage detection device | |
| CN110816819B (en) | Air bleed nozzle assembly for aviation brake wheel | |
| CN114923643A (en) | Pipeline air tightness detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240326 Address after: 201503 No.7, Lane 381, Hong'an Road, Zhujing Town, Jinshan District, Shanghai Applicant after: SHANGHAI DELANG AUTO RADIATOR MANUFACTURING Co.,Ltd. Country or region after: China Address before: No. 58, Yanghebang Road, Songjiang Hi tech Park, Songjiang District, Shanghai, 201615 Applicant before: SHANGHAI DELANG AUTO PARTS MANUFACTURING Co.,Ltd. Country or region before: China |
|
| GR01 | Patent grant |