CN113776751A - Oil cylinder leakage detection process and detection equipment thereof - Google Patents
Oil cylinder leakage detection process and detection equipment thereof Download PDFInfo
- Publication number
- CN113776751A CN113776751A CN202111127604.9A CN202111127604A CN113776751A CN 113776751 A CN113776751 A CN 113776751A CN 202111127604 A CN202111127604 A CN 202111127604A CN 113776751 A CN113776751 A CN 113776751A
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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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
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Abstract
The invention discloses an oil cylinder leakage detection process and detection equipment thereof, which comprise a base and support rods fixedly arranged on two sides of the top end of the base, wherein hydraulic rods are fixedly arranged on the inner side surfaces of the support rods, detection shells are fixedly arranged on the inner side surfaces of the hydraulic rods, the detection shells are of cylindrical structures, openings of the two detection shells are oppositely arranged, a control mechanism is arranged in the detection shell outside the openings, a marking mechanism is arranged in the detection shell adjacent to the hydraulic rods, and the control mechanism comprises an extrusion cavity, an extrusion block, a first spring, an electric control component and a heating component. According to the invention, through arranging a series of structures, the oil cylinder to be detected is placed between the two detection shells, the hydraulic rod is started to extend to drive the two detection shells to be inwards closed, attached and sealed, and then the pressure valve is opened to pressurize the space between the two detection shells, so that whether the oil cylinder leaks or not can be judged according to the indication of the pressure on the dial plate of the barometer.
Description
Technical Field
The invention relates to the technical field of oil cylinder detection, in particular to an oil cylinder leakage detection process and detection equipment thereof.
Background
The oil cylinder is an actuating element in a hydraulic system, is an energy conversion component for converting hydraulic energy into mechanical energy, performs linear reciprocating motion, is widely applied to various mechanical hydraulic systems, and can be detected before production and delivery or after being used for a preset period in order to ensure the sound functionality of the oil cylinder, wherein one important item is the phenomenon that whether the oil cylinder leaks or not is judged by adopting detection equipment.
However, in the detection process, the oil cylinder is placed in the detection device, and then the detection device is pressed and tightly attached together through high pressure to perform pressurization detection on the inside of the detection device, however, in the actual production, the manufacturing precision of the sprue of the detection device is not high, so that the inner sealing performance of the detection device is poor, the detection device cannot be completely attached, and the phenomena of inaccurate and misdetection of the test are caused.
Disclosure of Invention
The invention aims to provide an oil cylinder leakage detection process and detection equipment thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an hydro-cylinder seepage check out test set, includes base and base top both sides fixed mounting's bracing piece, the equal fixed mounting of inboard surface of bracing piece has the hydraulic stem, the inboard surface of hydraulic stem is fixed mounting all and is detected the casing, detects the casing and be the tubular structure, and two openings that detect the casing lay relatively, the detection casing internally mounted in the opening outside has control mechanism, is close to the detection casing internally mounted of hydraulic stem has marking mechanism.
Preferably, control mechanism is including extruding chamber, extrusion piece, spring one, automatically controlled part and intensification part, and the inside loop line that is of the detection casing in the opening outside is provided with the extrusion chamber, and the inside movable mounting in extrusion chamber has the extrusion piece, and the one end of extrusion piece extends to and detects the casing inboard, and install spring one between extrusion intracavity wall and the extrusion piece jointly, the automatically controlled part of detection casing internally mounted of extrusion chamber one side, and the one end of extrusion piece extends and detects the casing, and the extension of extrusion piece holds fixed surface installation intensification part.
Preferably, the electric control component comprises a piezoresistor, a dielectric plate, a positive plate and a negative plate, the piezoresistor is mounted inside the detection shell on one side of the extrusion cavity, the dielectric plate is mounted inside the extrusion block, the positive plate is mounted inside the detection shell on the circumferential outer side of the extrusion cavity, and the negative plate is mounted inside the detection shell on the circumferential inner side of the extrusion cavity.
Preferably, the heating component comprises a sealing block, a heating cavity and an electric heating wire, one end of the extrusion block extends out of the detection shell, the surface of the extending end of the extrusion block is fixedly provided with the sealing block, the heating cavity is arranged in the sealing block, the electric heating wire is arranged in the heating cavity, and the surface of the outer side of the sealing block is provided with a sealing gasket.
Preferably, the marking mechanism comprises a movable cavity, a push block, a second spring, an air bag and a pushing part, the adjacent detection shell is internally provided with the movable cavity, the inside of the movable cavity is provided with the push block, the second spring is jointly installed between the bottom end of the push block and the movable cavity, the air bag is installed inside the movable cavity above the push block, and the pushing part is installed between the inside of the push block and the inside of the detection shell.
Preferably, the pushing component comprises a magnetic block and an electromagnet, the magnetic block is arranged inside the pushing block, and the electromagnet is arranged inside the detection shell below the movable cavity.
Preferably, the surface of the supporting rod on the left side is provided with a barometer, a connecting pipe is connected between the interior of the detection shell and the bottom end of the barometer, and the surface of the connecting pipe is provided with a pressure valve.
Preferably, an interface is arranged at the installation position of the heating cavity and the heating wire.
Preferably, the inner walls of the movable cavities on the two sides of the push block are provided with sliding grooves, a through hole is formed between the top of the movable cavity and the inner wall of the detection shell, and the air bag is provided with a spray head which is sprayed outside through the through hole.
A cylinder leakage detection process comprises the following steps:
s1, placing the oil cylinder to be detected between the two detection shells, and starting the hydraulic rod to extend to drive the two detection shells to be combined inwards;
s2, moving the dielectric plate inside the extrusion block along with the extrusion block, and changing the relative area between the positive plate and the negative plate to generate current;
s3, when the current exceeds the minimum resistance of the piezoresistor, the piezoresistor energizes the heating wire through the interface;
s4, heating by the electric heating wire to heat and soften the sealing gasket fixed on the surface of the sealing block, so as to improve the sealing performance between the two detection shells;
s5, opening the pressure valve to pressurize the space between the two detection shells, and judging whether the oil cylinder leaks according to the pressure indication on the dial plate of the barometer;
s6, electrifying the electromagnet by using the piezoresistor, and pushing the magnetic block by the electromagnet by using the principle that like poles repel each other;
s7 drives the push block to move upwards to extrude the air bag, and the marking reagent in the air bag is extruded to the surface of the oil cylinder through the through hole, so that the leakage point of the oil cylinder is observed.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the oil cylinder leakage detection process and the detection equipment thereof, the oil cylinder to be detected is placed between the two detection shells, the hydraulic rod is started to extend to drive the two detection shells to be inwards fitted and sealed, the pressure valve is opened to pressurize the two detection shells, and the problem of leakage of the oil cylinder can be judged according to the indication of the pressure on the dial plate of the barometer.
2. This hydro-cylinder seepage detects technology and check out test set thereof, when two detection casings inwards merge, can drive the inside dielectric plate of extrusion piece and remove, change the relative area between positive plate and the negative plate and produce the electric current, the electric current is circular telegram to the heating wire, and the heating wire generates heat and softens the seal gasket heat of sealing piece fixed surface to in improving the leakproofness between two detection casings.
3. This hydro-cylinder seepage detects technology and check out test set thereof utilizes piezo-resistor to switch on the electro-magnet, and the electro-magnet adopts homopolar repulsion's principle to promote the magnetic path after that, drives ejector pad rebound and extrudees the gasbag, extrudees the inside mark reagent of gasbag to the hydro-cylinder surface through the through-hole, and inside the mark reagent of hydro-cylinder seepage department got into the hydro-cylinder under the effect of pressure this moment, all the other mark reagent attached to the surface of hydro-cylinder to this observation hydro-cylinder seepage point makes things convenient for the staff to handle.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 1 at A according to the present invention;
fig. 4 is an enlarged schematic view of the invention at B in fig. 1.
In the figure: 1. a base; 2. a support bar; 3. a hydraulic lever; 4. detecting the shell; 5. an extrusion chamber; 6. extruding the block; 7. a first spring; 8. a voltage dependent resistor; 9. a dielectric plate; 10. a positive plate; 11. a negative plate; 12. a sealing block; 13. a heating cavity; 14. an electric heating wire; 15. sealing gaskets; 16. a movable cavity; 17. a push block; 18. a second spring; 19. an air bag; 20. a magnetic block; 21. an electromagnet; 22. a barometer; 23. a connecting pipe; 24. a pressure valve; 25. an interface; 26. a chute; 27. and a through hole.
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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, this embodiment oil cylinder leakage detection device, including base 1 and the bracing piece 2 of 1 top both sides fixed mounting of base, bracing piece 2 can be used to the fixed of spare part, the equal fixed mounting of inboard surface of bracing piece 2 has hydraulic stem 3, the model of hydraulic stem 3 is DYTP300-500, hydraulic stem 3 can be used to extend or shorten, the equal fixed mounting of inboard surface of hydraulic stem 3 has detection casing 4, detection casing 4 can be used to the detection of hydro-cylinder, detection casing 4 is the tubular structure, and two openings that detect casing 4 are laid relatively, 4 internally mounted of detection casing outside the opening have control mechanism, 4 internally mounted of detection casing that neighbouring hydraulic stem 3 has marking mechanism.
Concretely, control mechanism is including extrusion chamber 5, extrusion piece 6, spring 7, automatically controlled part and intensification part, the inside loop that is of detection casing 4 outside the opening is provided with extrusion chamber 5, extrusion chamber 5 is actually an annular cavity, the inside movable mounting in extrusion chamber 5 has extrusion piece 6, and the one end of extrusion piece 6 extends to detection casing 4 inboardly, extrusion piece 6 can take place the activity when receiving pressure, install spring 7 between extrusion chamber 5 inner wall and the extrusion piece 6 jointly, spring 7 can be used to support extrusion piece 6, the automatically controlled part of 4 internally mounted of detection casing of extrusion chamber 5 one side, detection casing 4 is extended to the one end of extrusion piece 6, the extension end fixed surface installation intensification part of extrusion piece 6.
Further, the electric control component comprises a piezoresistor 8, a dielectric plate 9, a positive plate 10 and a negative plate 11, the positions of the positive plate 10 and the negative plate 11 are corresponding to each other, the shape and the size of the positive plate 10 and the negative plate 11 are the same, a piezoresistor 8 is arranged in the detection shell 4 at one side of the extrusion cavity 5, when the current exceeds the minimum resistance of the varistor 8, the varistor 8 is in the on state, and when the current is less than the minimum resistance of the varistor 8, the varistor 8 is in the off state, the dielectric plate 9 is installed inside the pressing block 6, the dielectric plate 9 is actually an insulating material, can be used to isolated current, the detection casing 4 internally mounted in the 5 circumference outsides in extrusion chamber has positive plate 10, is connected through the wire between positive plate 10 and the external current, and the detection casing 4 internally mounted in the 5 circumference inboards in extrusion chamber has negative plate 11, is connected through the wire between negative plate 11 and the external current.
Further, the heating component comprises a sealing block 12, a heating cavity 13 and an electric heating wire 14, the electric heating wire 14 generates heat after being electrified, one end of the extrusion block 6 extends out of the detection shell 4, the sealing block 12 is fixedly mounted on the surface of the extending end of the extrusion block 6, the sealing block 12 can be used for improving the sealing performance between the two detection shells 4, the heating cavity 13 is arranged inside the sealing block 12, the heating cavity 13 can be used for heating, the electric heating wire 14 is mounted inside the heating cavity 13, a sealing gasket 15 is mounted on the surface of the outer side of the sealing block 12, and the sealing gasket 15 is actually made of rubber and can be used for enhancing the sealing performance.
Further, the marking mechanism comprises a movable cavity 16, a push block 17, a second spring 18, an air bag 19 and a pushing component, the movable cavity 16 is arranged inside the detection shell 4 adjacent to the detection shell 3, the push block 17 is arranged inside the movable cavity 16, the second spring 18 is arranged between the bottom end of the push block 17 and the movable cavity 16, the air bag 19 is arranged inside the movable cavity 16 above the push block 17, and the pushing component is arranged between the inside of the push block 17 and the inside of the detection shell 4.
Further, the pushing component comprises a magnetic block 20 and an electromagnet 21, the magnetic block 20 is mounted inside the pushing block 17, the electromagnet 21 is mounted inside the detection shell 4 below the movable cavity 16, the electromagnet 21 is connected with the piezoresistor 8 through a conducting wire, and after the electromagnet 21 is electrified, the magnetism of the opposite surface of the electromagnet 21 is the same as that of the magnetic block 20, so that the phenomenon of homopolar repulsion can occur.
Further, the surface of the left support rod 2 is provided with a barometer 22, the barometer 22 can be used for observing the air pressure condition, a connecting pipe 23 is connected between the inside of the detection shell 4 and the bottom end of the barometer 22, the connecting pipe 23 can be used for transporting air, the surface of the connecting pipe 23 is provided with a pressure valve 24, and the pressure valve 24 can be used for controlling the transportation of air.
Further, a connector 25 is arranged at the installation position of the heating cavity 13 and the heating wire 14, and the connector 25 is used for connecting and fixing the heating wire 14 and a lead.
Furthermore, the inner walls of the movable cavities 16 on the two sides of the push block 17 are provided with sliding grooves 26, the sliding grooves 26 can be used for facilitating the operation of the push block 17, a through hole 27 is formed between the top of the movable cavity 16 and the inner wall of the detection shell 4, the through hole 27 can be used for communicating with the inside of the detection shell 4, the air bag 19 is provided with a spray head for spraying outside through the through hole 27, and the air bag 19 can be used for storing a marking reagent.
A cylinder leakage detection process comprises the following steps:
s1, placing the oil cylinder to be detected between the two detection shells 4, and starting the hydraulic rod 3 to extend to drive the two detection shells 4 to be combined inwards;
s2 moving dielectric plate 9 inside pressing block 6, changing the relative area between positive electrode plate 10 and negative electrode plate 11 to generate current;
s3, when the current exceeds the minimum resistance of the pressure sensitive resistor 8, the pressure sensitive resistor 8 energizes the heating wire 14 through the interface 25;
s4, heating the electric heating wire 14 to heat and soften the sealing gasket 15 fixed on the surface of the sealing block 12, so as to improve the sealing performance between the two detection shells 4;
s5, opening the pressure valve 24 to pressurize the space between the two detection shells 4, and judging whether the oil cylinder leaks according to the pressure indication on the dial plate of the barometer 22;
s6, electrifying the electromagnet 21 by using the piezoresistor 8, and pushing the magnetic block 20 by the electromagnet 21 by using the principle that like poles repel each other;
s7 drives the push block 17 to move upwards to extrude the air bag 19, and the marking reagent in the air bag 19 is extruded to the surface of the oil cylinder through the through hole 27, so that the leakage point of the oil cylinder is observed.
The using method of the embodiment comprises the following steps: an oil cylinder to be detected is placed between two detection shells 4, the starting hydraulic rod 3 extends to drive the two detection shells 4 to be combined inwards, a dielectric plate 9 in an extrusion block 6 is driven to move, the relative area between a positive plate 10 and a negative plate 11 is changed to generate current, when the current exceeds the minimum resistance value of a piezoresistor 8, the piezoresistor 8 is electrified through an interface 25 to a heating wire 14, the heating wire 14 generates heat to heat and soften a sealing gasket 15 fixed on the surface of a sealing block 12, the sealing performance between the two detection shells 4 is improved, a pressure valve 24 is opened to pressurize the two detection shells 4, whether the oil cylinder leaks or not can be judged according to the indication of the pressure on a dial plate of a barometer 22, the piezoresistor 8 is electrified to an electromagnet 21, the electromagnet 21 pushes a magnetic block 20 by utilizing the principle of homopolar repulsion, the push block 17 is driven to move upwards to extrude an air bag 19, the marking reagent in the air bag 19 is extruded to the surface of the oil cylinder through the through hole 27, the marking reagent at the oil cylinder leakage point enters the oil cylinder under the action of pressure, and the rest marking reagent is attached to the surface of the oil cylinder so as to observe the oil cylinder leakage point, so that the oil cylinder leakage point is convenient for workers to handle.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an hydro-cylinder seepage check out test set, includes base (1) and base (1) top both sides fixed mounting's bracing piece (2), its characterized in that: the utility model discloses a hydraulic pressure pole (3) of bracing piece, including bracing piece (2), the inboard surface of hydraulic pressure pole (3) is all fixed mounting has detection casing (4), detects casing (4) and is the tubular structure, and two openings that detect casing (4) are laid relatively, detection casing (4) internally mounted in the opening outside has control mechanism, is close to detection casing (4) internally mounted of hydraulic pressure pole (3) has marking mechanism.
2. The oil cylinder leakage detection device according to claim 1, characterized in that: control mechanism is including extrusion chamber (5), extrusion piece (6), spring (7), automatically controlled part and intensification part, it is provided with extrusion chamber (5) to be the loop line inside detection casing (4) in the opening outside, the inside movable mounting in extrusion chamber (5) has extrusion piece (6), and the one end of extrusion piece (6) extends to detection casing (4) inboard, install spring (7) jointly between extrusion chamber (5) inner wall and extrusion piece (6), detection casing (4) internally mounted automatically controlled part of extrusion chamber (5) one side, the one end of extrusion piece (6) is extended and is detected casing (4), the extension end fixed surface installation intensification part of extrusion piece (6).
3. The oil cylinder leakage detection device according to claim 2, characterized in that: the electric control component comprises a piezoresistor (8), a dielectric plate (9), a positive plate (10) and a negative plate (11), the piezoresistor (8) is mounted inside the detection shell (4) on one side of the extrusion cavity (5), the dielectric plate (9) is mounted inside the extrusion block (6), the positive plate (10) is mounted inside the detection shell (4) on the circumferential outer side of the extrusion cavity (5), and the negative plate (11) is mounted inside the detection shell (4) on the circumferential inner side of the extrusion cavity (5).
4. The oil cylinder leakage detection device according to claim 2, characterized in that: the heating component comprises a sealing block (12), a heating cavity (13) and an electric heating wire (14), one end of an extrusion block (6) extends out of a detection shell (4), the surface of the extending end of the extrusion block (6) is fixedly provided with the sealing block (12), the heating cavity (13) is arranged inside the sealing block (12), the electric heating wire (14) is arranged inside the heating cavity (13), and a sealing gasket (15) is arranged on the surface of the outer side of the sealing block (12).
5. The oil cylinder leakage detection device according to claim 1, characterized in that: the marking mechanism comprises a movable cavity (16), a push block (17), a second spring (18), an air bag (19) and a pushing component, the movable cavity (16) is arranged inside a detection shell (4) adjacent to the detection cavity (3), the push block (17) is arranged inside the movable cavity (16), the second spring (18) is arranged between the bottom end of the push block (17) and the movable cavity (16) together, the air bag (19) is arranged inside the movable cavity (16) above the push block (17), and the pushing component is arranged inside the detection shell (4) inside the push block (17).
6. The oil cylinder leakage detection device according to claim 5, characterized in that: the pushing component comprises a magnetic block (20) and an electromagnet (21), the magnetic block (20) is installed inside the pushing block (17), and the electromagnet (21) is installed inside the detection shell (4) below the movable cavity (16).
7. The oil cylinder leakage detection device according to claim 1, characterized in that: the left side the surface mounting of bracing piece (2) has barometer (22), detects and is connected with connecting pipe (23) between the inside of casing (4) and barometer (22) bottom, and the surface mounting of connecting pipe (23) has pressure valve (24).
8. The oil cylinder leakage detection device according to claim 4, characterized in that: and an interface (25) is arranged at the installation position of the heating cavity (13) and the electric heating wire (14).
9. The oil cylinder leakage detection device according to claim 5, characterized in that: the inner walls of the movable cavities (16) on the two sides of the push block (17) are provided with sliding grooves (26), a through hole (27) is formed between the top of the movable cavity (16) and the inner wall of the detection shell (4), and the air bag (19) is provided with a spray head which sprays outside through the through hole (27).
10. The oil cylinder leakage detection process based on claims 1-9, characterized in that: the method comprises the following steps:
s1, placing the oil cylinder to be detected between the two detection shells (4), and starting the hydraulic rod (3) to extend to drive the two detection shells (4) to be combined inwards;
s2, moving the dielectric plate (9) in the extrusion block (6) along with the extrusion block, and changing the relative area between the positive plate (10) and the negative plate (11) to generate current;
s3, when the current exceeds the minimum resistance of the voltage dependent resistor (8), the voltage dependent resistor (8) energizes the electric heating wire (14) through the interface 25;
s4, heating wires (14) generate heat to heat and soften a sealing gasket (15) fixed on the surface of the sealing block (12), so that the sealing performance between the two detection shells (4) is improved;
s5, opening the pressure valve (24) to pressurize between the two detection shells (4), and judging whether the oil cylinder leaks according to the indication of the pressure on the dial plate of the barometer (22);
s6, electrifying the electromagnet (21) by using the piezoresistor (8), and pushing the magnetic block (20) by the electromagnet (21) by using the principle that like poles repel each other;
s7, the push block (17) is driven to move upwards to extrude the air bag (19), the marking reagent in the air bag (19) is extruded to the surface of the oil cylinder through the through hole (27), and the leakage point of the oil cylinder is observed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111127604.9A CN113776751A (en) | 2021-09-26 | 2021-09-26 | Oil cylinder leakage detection process and detection equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111127604.9A CN113776751A (en) | 2021-09-26 | 2021-09-26 | Oil cylinder leakage detection process and detection equipment thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113776751A true CN113776751A (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111127604.9A Withdrawn CN113776751A (en) | 2021-09-26 | 2021-09-26 | Oil cylinder leakage detection process and detection equipment thereof |
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| Country | Link |
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| CN (1) | CN113776751A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117470458A (en) * | 2023-12-28 | 2024-01-30 | 卡耐夫集团(山西)管道系统有限公司 | Pipe fitting pressurization detection device and application method thereof |
-
2021
- 2021-09-26 CN CN202111127604.9A patent/CN113776751A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117470458A (en) * | 2023-12-28 | 2024-01-30 | 卡耐夫集团(山西)管道系统有限公司 | Pipe fitting pressurization detection device and application method thereof |
| CN117470458B (en) * | 2023-12-28 | 2024-03-29 | 卡耐夫集团(山西)管道系统有限公司 | Pipe fitting pressurization detection device and application method thereof |
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Application publication date: 20211210 |
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