CN113405792A - Self-closing valve multi-state testing tool - Google Patents
Self-closing valve multi-state testing tool Download PDFInfo
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- CN113405792A CN113405792A CN202110659534.5A CN202110659534A CN113405792A CN 113405792 A CN113405792 A CN 113405792A CN 202110659534 A CN202110659534 A CN 202110659534A CN 113405792 A CN113405792 A CN 113405792A
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- closing valve
- cylinder
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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
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
Abstract
The invention discloses a self-closing valve multi-state testing tool which is connected with an external testing machine and specifically comprises a testing bench, wherein a fixing mechanism, a clamp mechanism, an induction mechanism, a moving mechanism, a display mechanism and a controller are arranged on the testing bench; the fixing mechanism is used for positioning and fixing the self-closing valve to be detected; the moving mechanism is used for moving the clamp mechanism up and down; the clamp mechanism is used for grabbing the self-closing valve to be tested, and moves up and down under the action of the moving mechanism so as to adjust different air pressure states of the self-closing valve to be tested; the induction mechanism is used for monitoring different air pressure states of the self-closing valve to be detected and feeding back a monitoring result to the controller; the controller controls the external testing machine to work according to the monitoring result of the sensing mechanism and feeds the testing result back to the display mechanism. The invention has accurate detection and high efficiency, effectively improves the quality and reliability of the self-closing valve product and ensures the safety of gas consumption of a user.
Description
Technical Field
The invention relates to the technical field of test tool equipment, in particular to a self-closing valve multi-state test tool.
Background
The gas self-closing valve for pipeline is installed on the pipeline of low-pressure gas system, and when the gas supply pressure of pipeline is under-pressure or over-pressure, it has no need of using electricity or other external power, and can be automatically closed and manually opened.
At present, a plurality of manufacturers of the pipeline gas self-closing valve have different scales, and the consistency and the quality of products are different. Most manufacturers lack necessary detection means to carry out factory detection on products according with national standards. The test items of the pipeline gas self-closing valve are numerous, wherein the overpressure and the underpressure are the most critical indexes for judging whether the self-closing valve meets the standard or not. At present, most manufacturers do not detect or detect in a mode of manually building a simple test tool, detection standards and detection means do not exist, detection results are inaccurate, manual detection efficiency is low, quality and reliability of self-closing valve products cannot be guaranteed, and safety of gas use of users cannot be guaranteed.
Disclosure of Invention
Aiming at the problems in the prior art, the self-closing valve multi-state testing tool is provided, so that the problems of inaccurate detection and low efficiency of manual pressure regulation in the prior art are solved, the quality and reliability of a self-closing valve product are improved, and the safety of gas use of a user is ensured.
The specific technical scheme is as follows:
a self-closing valve multi-state testing tool is connected with an external testing machine and specifically comprises a testing rack, wherein a fixing mechanism, a clamp mechanism, an induction mechanism, a moving mechanism, a display mechanism and a controller are arranged on the testing rack;
the fixing mechanism is used for positioning and fixing the self-closing valve to be detected;
the moving mechanism is used for moving the clamp mechanism up and down;
the clamp mechanism is used for grabbing the self-closing valve to be tested, and moves up and down under the action of the moving mechanism so as to adjust different air pressure states of the self-closing valve to be tested;
the induction mechanism is used for monitoring different air pressure states of the self-closing valve to be detected and feeding back a monitoring result to the controller;
the controller controls the external testing machine to work according to the monitoring result of the sensing mechanism and feeds the testing result back to the display mechanism;
the controller is electrically connected with the fixing mechanism, the clamp mechanism, the sensing mechanism, the moving mechanism and the display mechanism.
Compared with the prior art, the invention accurately and efficiently tests the performances of three states (under-pressure, neutral position and over-pressure) of the self-closing valve, has high test efficiency, and avoids the problems of inaccurate detection and low efficiency of manually adjusting the pressure. The whole control system realizes the kinetic energy of automatic pressurization, depressurization and the like, and improves the efficiency under the automatic production. In a word, the invention improves the testing precision and efficiency of the overpressure and underpressure performance detection of the self-closing valve, improves the quality and reliability of the self-closing valve product, and effectively improves the gas use safety of users.
Preferably, the fixing mechanism comprises a fixing base plate, a horizontal sliding rail arranged on the fixing base plate and a horizontal sliding block used for positioning and fixing the self-closing valve to be detected, a first plug and a second plug used for plugging the self-closing valve are arranged on two sides of the horizontal sliding block, the first plug is fixed on the fixing base plate, and the second plug horizontally moves under the driving action of the driving cylinder. Through the arrangement, the self-closing valve to be tested is fixed, and the air tightness of the self-closing valve to be tested during testing is ensured.
Preferably, the first plug is provided with an air inlet of an external testing machine, and the second plug is provided with an air outlet of the external testing machine. The device is used for connecting an external testing machine for setting.
Preferably, the moving mechanism comprises a double-head cylinder, a vertical sliding rail, a vertical sliding block and a limiting component, a cylinder rod at the upper end of the double-head cylinder is fixedly connected with the test bench, a cylinder rod at the lower end of the double-head cylinder is connected with the vertical sliding block, the double-head cylinder and the vertical sliding block can move up and down along the vertical sliding rail, and the limiting component is used for limiting the vertical stroke of the double-head cylinder. Through this setting, adopt double-end cylinder in order to increase the stroke distance of cylinder to satisfy three kinds of test condition.
Preferably, the limiting part comprises a limiting block connected with the double-head cylinder and a limiting groove used for limiting the limiting block to vertically move. By this arrangement, the stroke distance of the double-headed cylinder is limited for better operation thereof.
Preferably, the clamp mechanism comprises a finger cylinder connected with the vertical sliding block and two mechanical grippers connected with two parallel clamping jaws of the finger cylinder.
Preferably, the sensing mechanism comprises two sensors and a sensing connecting rod, the two sensors are fixed on the test bench and are stacked up and down, the sensors can penetrate through the upper ends of the sensing connecting rod, the lower end of the sensing connecting rod abuts against the self-closing valve to be tested, and the sensing connecting rod penetrates through the palms of the two mechanical grippers to be arranged. Through the arrangement, the air pressure state of the self-closing valve to be tested is monitored by the induction mechanism, and the air pressure state of the self-closing valve to be tested is ensured, so that the test result of an external test machine is ensured to be accurate.
Preferably, the display mechanism comprises an indicator light and a buzzer. Through the setting, can audio-visual demonstration test result for operating personnel's reference.
Drawings
FIG. 1 is an overall view of a self-closing valve multi-state testing tool of the present invention;
FIG. 2 is a side view of the self-closing valve multi-state testing tool of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of portion B of FIG. 1;
FIG. 5 is a position diagram of the sensing connecting rod of the self-closing valve to be tested in the under-pressure state;
FIG. 6 is a position diagram of the sensing connecting rod of the self-closing valve to be measured in the neutral position state according to the present invention;
FIG. 7 is a position diagram of the sensing connecting rod of the self-closing valve to be tested in an overpressure state.
In the attached drawings, 1, a test bench; 2. a fixing mechanism; 2.1, fixing a bottom plate; 2.2, a horizontal sliding rail; 2.3, a horizontal sliding block; 2.4, a first plug; 2.5, a second plug; 2.6, driving a cylinder; 2.7, an air inlet; 2.8, an air outlet; 3. a clamp mechanism; 3.1, a finger cylinder; 3.2, mechanical grippers; 4. an induction mechanism; 4.1, a sensor; 4.2, an induction connecting rod; 5. a moving mechanism; 5.1, a double-head cylinder; 5.2, a vertical slide rail; 5.3, a vertical sliding block; 5.4, a limiting component; 5.4.1, a limiting block; 5.4.2, a limit groove; 6. and a display mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention shows a self-closing valve multi-state testing tool, which is connected to an external testing machine (not shown in the figure) to assist the external testing machine to perform three state detections of the self-closing valve, namely, detecting an under-voltage closing, a middle-position conduction and an overpressure closing of the self-closing valve. The overpressure and underpressure self-closing performance are the most critical indexes for judging whether the self-closing valve meets the standard or not, and are related to the use safety of pipeline fuel gas.
The self-closing valve multi-state testing tool comprises a testing bench 1, wherein a fixing mechanism 2, a clamp mechanism 3, a sensing mechanism 4, a moving mechanism 5, a display mechanism 6 and a controller (not shown in the figure) are arranged on the testing bench 1. The controller is electrically connected with the fixing mechanism 2, the clamp mechanism 3, the sensing mechanism 4, the moving mechanism 5 and the display mechanism 6 and controls the normal operation of each mechanism.
The specific structure is as follows:
the fixing mechanism 2 is used for positioning and fixing the self-closing valve to be tested and comprises a fixing bottom plate 2.1, a horizontal sliding rail 2.2, a horizontal sliding block 2.3, a first plug 2.4, a second plug 2.5 and a driving cylinder 2.6. The horizontal sliding rail 2.2 is fixed on the fixed bottom plate 2.1, the horizontal sliding block 2.3 can slide along the horizontal sliding rail 2.2, a station for positioning and fixing the self-closing valve to be tested is arranged on the horizontal sliding block 2.3, and the self-closing valve to be tested can be installed on the station before testing. The two sides of the horizontal sliding block 2.3 are respectively provided with a first plug 2.4 and a second plug 2.5 which are used for plugging the self-closing valve, the first plug 2.4 is fixed on the fixed bottom plate 2.1, namely when the self-closing valve to be tested is installed on a station, one end of the self-closing valve to be tested is plugged through the first plug 2.4, the second plug 2.5 horizontally moves under the driving action of the driving cylinder 2.6, after the self-closing valve to be tested is installed on the station, the driving cylinder 2.6 extends out of the cylinder rod to enable the second plug 2.5 to plug the other end of the self-closing valve to be tested, and the air tightness of the self-closing valve to be tested is guaranteed.
The moving mechanism 5 is used for moving the clamp mechanism 3 up and down, and as shown in fig. 2 and 3, comprises a double-head cylinder 5.1, a vertical slide rail 5.2, a vertical slide block 5.3 and a limiting component 5.4. The two ends of the double-head cylinder 5.1 are provided with cylinder rods which are connected in series to form one cylinder rod, and the double-head cylinder 5.1 can move up and down along the cylinder rod. The cylinder pole and the test bench 1 fixed connection of double-end cylinder 5.1 upper end, the cylinder pole and the vertical slider 5.3 of double-end cylinder 5.1 lower extreme are connected, vertical slider 5.3 can reciprocate along vertical slide rail 5.2 under double-end cylinder 5.1's drive, owing to be double-end cylinder 5.1, when the cylinder pole stroke of double-end cylinder 5.1 lower extreme was not enough, the cylinder pole that can start double-end cylinder 5.1 upper end is flexible, because the cylinder pole of double-end cylinder 5.1 upper end is fixed on test bench 1 again, consequently double-end cylinder 5.1 has moved corresponding to the cylinder pole of upper end, the up-and-down motion stroke of double-end cylinder 5.1 has been increased, three kinds of test condition with satisfying the below.
The limiting component 5.4 is used for limiting the vertical stroke of the double-head cylinder 5.1 and comprises a limiting block 5.4.1 connected with the double-head cylinder 5.1 and a limiting groove 5.4.2 used for limiting the vertical movement of the limiting block 5.4.1. The limiting groove 5.4.2 is formed by a U-shaped notch of the U-shaped part, the limiting block 5.4.1 moves in the limiting groove 5.4.2, and the inner wall of the U-shaped notch of the U-shaped part plays a role in limiting the stroke of the limiting block 5.4.1.
As shown in fig. 4, the clamp mechanism 3 is used for grasping the self-closing valve to be measured, and under the action of the moving mechanism 5, the clamp mechanism 3 moves up and down to adjust different air pressure states of the self-closing valve to be measured. Specifically, the clamp mechanism 3 comprises a finger cylinder 3.1 connected with a vertical slide block 5.3 and two mechanical grippers 3.2 connected with two parallel clamping jaws of the finger cylinder 3.1. Under the action of a double-head cylinder 5.1 of a moving mechanism 5, a vertical sliding block 5.3 is pushed to move up and down, meanwhile, a finger cylinder 3.1 is enabled to move up and down, after the finger cylinder is moved in place, the finger cylinder 3.1 is started to work, a cap sleeve of the self-closing valve to be tested is grabbed through two mechanical grabbers 3.2, the double-head cylinder 5.1 is started again to move so as to drive the cap sleeve of the self-closing valve to be tested to move up and down, the internal air pressure state of the self-closing valve to be tested is adjusted, the judgment is carried out through an induction mechanism 4, and the air pressure is fed back to an external testing machine for testing.
The sensing mechanism 4 is used for monitoring different air pressure states of the self-closing valve to be detected and feeding back a monitoring result to the controller. The induction mechanism 4 comprises two inductors 4.1 fixed on the test bench 1 and an induction connecting rod 4.2, the two inductors 4.1 are stacked up and down, the upper end of the induction connecting rod 4.2 can penetrate through the inductors 4.1, the lower end of the induction connecting rod 4.2 is abutted to the self-closing valve to be tested, and the air pressure state of the self-closing valve to be tested can be induced. The induction connecting rod 4.2 penetrates through the palms of the two mechanical grippers 3.2 to be distributed. When the induction connecting rod 4.2 is not penetrated through the inductor 4.1, the self-closing valve to be detected is in an under-pressure state; when the induction connecting rod 4.2 penetrates through one inductor 4.1, the self-closing valve to be detected is in a middle conduction state; when the sensing connecting rod 4.2 penetrates through the two sensors 4.1 at the same time, the self-closing valve to be detected is in an overpressure state.
The display mechanism 6 is used for displaying the test results of the external testing machine, and the indicator lamp can light lamps with different colors and can sound a buzzer with different sounds according to different test results, generally two test results which are qualified or unqualified.
The test principle of the self-closing valve multi-state test tool is as follows:
firstly, fixing a self-closing valve to be tested on a fixing mechanism 2, and carrying out air tightness blocking on the self-closing valve to be tested through a first plug 2.4 and a second plug 2.5, specifically, when the self-closing valve to be tested is installed on the fixing mechanism 2, the first plug 2.4 blocks one end of the self-closing valve to be tested, and the other end of the self-closing valve to be tested blocks the second plug 2.5 by starting a driving cylinder 2.6 and tightly presses the self-closing valve to be tested;
secondly, the double-head cylinder 5.1 is started to move up and down, so that the clamp mechanism 3 is pushed to move up and down. After the clamp mechanism 3 moves in place, the finger cylinder 3.1 is started, the mechanical gripper 3.2 grips a cap sleeve of the self-closing valve to be detected, and moves up and down under the action of the double-end cylinder 5.1 to adjust the internal air pressure state of the self-closing valve to be detected, and the air pressure state of the self-closing valve to be detected is judged and monitored all the time through the induction mechanism 4:
when the induction connecting rod 4.2 is not penetrated through the inductor 4.1, the self-closing valve to be detected is in an under-pressure state, as shown in fig. 5;
when the induction connecting rod 4.2 penetrates through one inductor 4.1, the self-closing valve to be tested is in a middle conduction state, as shown in fig. 6;
when the sensing connecting rod 4.2 penetrates through the two sensors 4.1 at the same time, the self-closing valve to be tested is in an overpressure state, as shown in fig. 7;
and feeding the air pressure state back to the controller, and controlling an external testing machine to perform multi-state testing of the self-closing valve by the controller.
And finally, the external testing machine feeds the feedback result back to the display mechanism 6 to display, a green light is turned on when the test is qualified, a red light is turned on when the test is unqualified, and different test results are sounded along with different buzzers to remind an operator.
In conclusion, the invention accurately and efficiently tests the performances of three states (under-pressure, neutral position and overpressure) of the self-closing valve, has high test efficiency and avoids the problems of inaccurate detection and low efficiency of manually adjusting the pressure. The whole control system realizes the kinetic energy of automatic pressurization, depressurization and the like, and improves the efficiency under the automatic production. In a word, the invention improves the testing precision and efficiency of the overpressure and underpressure performance detection of the self-closing valve, improves the quality and reliability of the self-closing valve product, and effectively improves the gas use safety of users.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear, inner and outer … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a self-closing valve multistate test fixture, it is connected with external test machine, and it specifically includes test bench (1), its characterized in that: the test bench (1) is provided with a fixing mechanism (2), a clamp mechanism (3), an induction mechanism (4), a moving mechanism (5), a display mechanism (6) and a controller;
the fixing mechanism (2) is used for positioning and fixing the self-closing valve to be detected;
the moving mechanism (5) is used for moving the clamp mechanism (3) up and down;
the clamp mechanism (3) is used for grabbing the self-closing valve to be tested, and under the action of the moving mechanism (5), the clamp mechanism (3) moves up and down to adjust different air pressure states of the self-closing valve to be tested;
the induction mechanism (4) is used for monitoring different air pressure states of the self-closing valve to be detected and feeding back a monitoring result to the controller;
the controller controls an external testing machine to work according to the monitoring result of the induction mechanism (4), and feeds back the testing result to the display mechanism (6);
the controller is electrically connected with the fixing mechanism (2), the clamp mechanism (3), the sensing mechanism (4), the moving mechanism (5) and the display mechanism (6).
2. The self-closing valve multi-state testing tool according to claim 1, characterized in that the fixing mechanism (2) comprises a fixing base plate (2.1), a horizontal sliding rail (2.2) arranged on the fixing base plate (2.1) and a horizontal sliding block (2.3) used for positioning and fixing the self-closing valve to be tested, a first plug (2.4) and a second plug (2.5) used for plugging the self-closing valve are arranged on two sides of the horizontal sliding block (2.3), the first plug (2.4) is fixed on the fixing base plate (2.1), and the second plug (2.5) horizontally moves under the driving action of a driving cylinder (2.6).
3. The self-closing valve multi-state testing tool according to claim 2, wherein an air inlet (2.7) of an external testing machine is formed in the first plug (2.4), and an air outlet (2.8) of the external testing machine is formed in the second plug (2.5).
4. The self-closing valve multi-state testing tool according to claim 1, characterized in that the moving mechanism (5) comprises a double-head cylinder (5.1), a vertical sliding rail (5.2), a vertical sliding block (5.3) and a limiting component (5.4), a cylinder rod at the upper end of the double-head cylinder (5.1) is fixedly connected with the testing bench (1), a cylinder rod at the lower end of the double-head cylinder (5.1) is connected with the vertical sliding block (5.3), the double-head cylinder (5.1) and the vertical sliding block (5.3) can move up and down along the vertical sliding rail (5.2), and the limiting component (5.4) is used for limiting the vertical stroke of the double-head cylinder (5.1).
5. The self-closing valve multi-state testing tool according to claim 4, wherein the limiting component (5.4) comprises a limiting block (5.4.1) connected with the double-head cylinder (5.1) and a limiting groove (5.4.2) used for limiting the limiting block (5.4.1) to move vertically.
6. Self-closing valve multi-state testing tool according to claim 4, characterized in that the clamp mechanism (3) comprises a finger cylinder (3.1) connected with a vertical slider (5.3), and two mechanical grippers (3.2) connected with two parallel jaws of the finger cylinder (3.1).
7. The self-closing valve multi-state testing tool according to claim 6, characterized in that the sensing mechanism (4) comprises two sensors (4.1) and a sensing connecting rod (4.2) which are fixed on the testing rack (1), the two sensors (4.1) are stacked up and down, the sensors (4.1) can be arranged at the upper end of the sensing connecting rod (4.2) in a penetrating manner, the lower end of the sensing connecting rod (4.2) is abutted against the self-closing valve to be tested, and the sensing connecting rod (4.2) is arranged by penetrating through the palm of the two mechanical grippers (3.2).
8. Self-closing valve multi-state testing tool according to claim 1, characterized in that the display mechanism (6) comprises an indicator light and a buzzer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110659534.5A CN113405792A (en) | 2021-06-11 | 2021-06-11 | Self-closing valve multi-state testing tool |
| PCT/CN2021/102933 WO2022257198A1 (en) | 2021-06-11 | 2021-06-29 | Self-closing valve multi-state testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110659534.5A CN113405792A (en) | 2021-06-11 | 2021-06-11 | Self-closing valve multi-state testing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113405792A true CN113405792A (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110659534.5A Pending CN113405792A (en) | 2021-06-11 | 2021-06-11 | Self-closing valve multi-state testing tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113405792A (en) |
| WO (1) | WO2022257198A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984373A (en) * | 2021-11-02 | 2022-01-28 | 宁波忻杰燃气用具实业有限公司 | Self-closing valve mechanical durability test equipment and test method |
| CN114088382A (en) * | 2021-11-19 | 2022-02-25 | 宁波杰克龙精工有限公司 | Gas self-closing valve under-pressure and over-pressure measuring tool and measuring method thereof |
| CN114486234A (en) * | 2022-01-24 | 2022-05-13 | 广东佳骏科技有限公司 | Detection device applied to automatic detection of performance of pipeline gas self-closing valve |
| CN117147078A (en) * | 2023-10-31 | 2023-12-01 | 良正阀门有限公司 | Gas gate valve detection device |
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| CN115839839B (en) * | 2023-02-13 | 2023-05-16 | 恒洁卫浴集团有限公司 | Life tester for drainer |
| CN116754052B (en) * | 2023-07-13 | 2024-03-29 | 宁波瑞森智能科技有限公司 | Water gauge production is with check out test set |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174152A (en) * | 1991-03-06 | 1992-12-29 | Wohld Peter R | Power operated valve stem thrust verification test system |
| CN107991085A (en) * | 2017-12-29 | 2018-05-04 | 无锡星月科技有限公司 | A kind of detection device and detection method of pipe gas self-closing valve |
| CN207751681U (en) * | 2017-12-29 | 2018-08-21 | 无锡星月科技有限公司 | A kind of pulling apparatus of pipe gas self-closing valve detection |
| CN210619498U (en) * | 2019-08-06 | 2020-05-26 | 浙江铭仕兴新暖通科技有限公司 | Automatic lifting, clamping and discharging mechanism for self-closing valve ejector rod |
| CN112461535A (en) * | 2020-12-11 | 2021-03-09 | 无锡星月科技有限公司 | Equipment for detecting ultra-underpressure self-closing performance of pipeline gas self-closing valve |
| CN214843982U (en) * | 2021-06-11 | 2021-11-23 | 宁波忻杰燃气用具实业有限公司 | Self-closing valve multi-state testing tool |
-
2021
- 2021-06-11 CN CN202110659534.5A patent/CN113405792A/en active Pending
- 2021-06-29 WO PCT/CN2021/102933 patent/WO2022257198A1/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984373A (en) * | 2021-11-02 | 2022-01-28 | 宁波忻杰燃气用具实业有限公司 | Self-closing valve mechanical durability test equipment and test method |
| CN114088382A (en) * | 2021-11-19 | 2022-02-25 | 宁波杰克龙精工有限公司 | Gas self-closing valve under-pressure and over-pressure measuring tool and measuring method thereof |
| CN114088382B (en) * | 2021-11-19 | 2023-09-08 | 宁波杰克龙精工有限公司 | Gas self-closing valve under-pressure and over-pressure measurement tool and measurement method thereof |
| CN114486234A (en) * | 2022-01-24 | 2022-05-13 | 广东佳骏科技有限公司 | Detection device applied to automatic detection of performance of pipeline gas self-closing valve |
| CN117147078A (en) * | 2023-10-31 | 2023-12-01 | 良正阀门有限公司 | Gas gate valve detection device |
| CN117147078B (en) * | 2023-10-31 | 2024-01-26 | 良正阀门有限公司 | Gas gate valve detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022257198A1 (en) | 2022-12-15 |
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