CN112337994A - Car steel sheet is sunken harmless repair instrument - Google Patents
Car steel sheet is sunken harmless repair instrument Download PDFInfo
- Publication number
- CN112337994A CN112337994A CN202011366036.3A CN202011366036A CN112337994A CN 112337994 A CN112337994 A CN 112337994A CN 202011366036 A CN202011366036 A CN 202011366036A CN 112337994 A CN112337994 A CN 112337994A
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- fixedly connected
- heat insulation
- insulation plate
- plate
- hydraulic rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/06—Removing local distortions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
The invention discloses an automobile steel plate recess nondestructive repair tool, and relates to the technical field of car washing and maintenance. This sunken harmless restoration instrument of car steel sheet, through first insulation board, vice hydraulic stem, sucking disc and heating device's cooperation setting, when the sunken contact on device shell and the car iron plate, start vice hydraulic stem, vice hydraulic stem extrudees the sucking disc amasss around sunken, adsorb the device firmly on the car iron plate, press the heating device switch, the better assists the restoration to sunken, the speed to sunken restoration has been improved, the time that the assurance can reduce operating personnel and spend when restoreing the recess.
Description
Technical Field
The invention relates to the technical field of automobile maintenance, in particular to an automobile steel plate depression nondestructive repair tool.
Background
The automobile steel sheet is an automobile steel sheet. The production process characteristics are divided into hot rolled steel plates, cold rolled steel plates and coating steel plates; from the intensity point of view, the method can be divided into: ordinary steel plates (mild steel plates), low-alloy high-strength steel plates (HSLA), ordinary high-strength steel plates (high-strength IF steel, BH steel, phosphorus-containing steel, IS steel, etc.), advanced high-strength steel plates (AHSS), and the like. The automobile steel plate is easy to be sunken when colliding, the existing sunken nondestructive repair tool is poor in sunken repair efficiency, and a large amount of time is consumed.
Chinese patent application No. CN201520635225.4 discloses an automobile steel plate recess nondestructive repair tool. The electromagnetic traction device is provided with an electromagnetic coil, and the electromagnetic coil is connected with an electromagnetic drawing head arranged at the top of the electromagnetic traction device through a circuit. The automobile steel plate recess nondestructive repair tool also has the defect of unstable fixation with an automobile steel plate under the condition of normal work.
Therefore, it is necessary to provide a tool for repairing the recess of the steel plate of the automobile without damage to the steel plate.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide an automobile steel plate recess nondestructive repair tool, and aims to solve the problems that the existing automobile steel plate recess nondestructive repair tool in the background art is poor in recess repair efficiency, consumes a large amount of time and is unstable in automobile steel plate fixation.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the automobile steel plate sunken nondestructive repair tool comprises a bottom plate, wherein a power supply device is fixedly connected to the top end of the bottom plate, a display is fixedly connected to one side of the power supply device, a fixed leather sheath is arranged below the display, a transmission hose is arranged inside the fixed leather sheath, a sealed neck ring is fixedly connected to the outer side of one end, away from the fixed leather sheath, of the transmission hose, a positioning ring is fixedly connected to the outer side of the sealed neck ring, a connecting box is fixedly connected to one end, away from the fixed leather sheath, of the positioning ring, handrails are fixedly connected to two sides of the connecting box, a main hydraulic rod switch is fixedly connected to one end, inside of each handrail, a heating device switch is fixedly connected to the other end, a shell is fixedly connected to one side, away from the positioning ring, of the connecting box, a first heat insulation plate is arranged on the inner side of the shell, a second heat insulation plate, a main hydraulic rod is arranged in the middle of the inner side of the second heat insulation plate, one end of a piston rod of the main hydraulic rod is fixedly connected with an electric power supply device, one end of the power supply device far away from the main hydraulic rod is fixedly connected with a strong electromagnet device, two sides of the main hydraulic rod are both provided with a supporting column, one end of the strut far away from the shell is fixedly connected with a signal transmission device, one end of the signal transmission device far away from the shell is fixedly connected with a video recording device, both sides of the video device are provided with lighting devices, the bottom of the interlayer of the first heat insulation plate and the second heat insulation plate is provided with a heating device, the output end of the heating device is fixedly connected with a high-temperature heating plate, the first heat insulation plate and the bottom of the interlayer of the shell are fixedly connected with an auxiliary hydraulic rod, and one end of a piston rod of the auxiliary hydraulic rod is fixedly connected with a sucker, and a vacuumizing device is arranged in the sucker.
Preferably, the video recording devices are two, the two video recording devices are symmetrically distributed on two sides of the main hydraulic rod, and the two video recording devices are parallel to the main hydraulic rod.
Preferably, there are two handrails, two handrails are symmetrically distributed on two sides of the connecting box, the two handrails are perpendicular to the connecting box, and the two handrails are on the same straight line.
Preferably, the central lines of the first heat insulation plate and the second heat insulation plate are the same straight line, the inner diameter of the first heat insulation plate is larger than the outer diameter of the second heat insulation plate, and the outer diameter of the first heat insulation plate is smaller than the inner diameter of the shell.
Preferably, the inner diameter of the sealing collar is equal to the outer diameter of the transmission hose, the outer diameter of the sealing collar is equal to the inner diameter of the positioning ring, and the center lines of the sealing collar and the positioning ring are the same straight line.
Preferably, the number of the auxiliary hydraulic rods is eight, the eight auxiliary hydraulic rods are distributed at the bottom of an interlayer formed by the first heat insulation plate and the shell in an equidistant annular array mode, and the eight auxiliary hydraulic rods are perpendicular to the suckers.
Preferably, the number of the sucking discs is eight, and the eight sucking discs are distributed in an interlayer formed by the first heat insulation plate and the shell in an equidistant annular array.
Preferably, the inner diameter of the fixed leather sheath is equal to the outer diameter of the transmission hose, and the central lines of the transmission hose inside the fixed leather sheath and the transmission hose inside the fixed leather sheath are the same straight line.
(III) advantageous effects
Compared with the prior art, the invention provides an automobile steel plate recess nondestructive repair tool, which has the following beneficial effects:
1. the automobile steel plate recess nondestructive repair tool is characterized in that a display, a lighting device, a video device, a main hydraulic rod and a strong electromagnet device are arranged in a matched mode, when a sucker in a shell of the device is adsorbed by an automobile iron plate around a recess, a power supply device is started, the power supply device utilizes a transmission hose to supply sufficient power to the main hydraulic rod, a main hydraulic rod switch is pressed down, the main hydraulic rod firstly moves the strong electromagnet device into the recess, the power supply device is started, the power supply device is a strong electromagnet device, the strong electromagnet device generates strong magnetic force, the inner side of the recess is tightly connected with the device, the lighting device and the video device are started while the main hydraulic rod is used for stretching the recess, a signal transmission device displays images by the display, an operator can conveniently observe the recess, and after the recess is repaired, the stopping device achieves the effect of repairing the recess, better performs nondestructive repair on the recess, improves the adjustment capability of repairing the recess, and ensures the quality of repairing the recess without damage.
2. The nondestructive repairing tool for the automobile steel plate recess is characterized in that a first heat insulation plate, a second heat insulation plate, an auxiliary hydraulic rod, a sucker and a heating device are arranged in a matched mode, when a shell of the device is in contact with the recess on an automobile iron plate, the auxiliary hydraulic rod is started, the sucker is extruded around the recess by the auxiliary hydraulic rod in a stacking mode, a vacuumizing device is started, air in the sucker is pumped out by the vacuumizing device, the device is firmly adsorbed on the automobile iron plate, a heating device switch is pressed down, the heating device is started, the heating device heats a high-temperature heating plate, the periphery of the recess is properly heated by the high-temperature heating plate, the extensibility of the automobile steel plate is improved, the recess is repaired by using a main hydraulic rod, the first heat insulation plate and the second heat insulation plate prevent the temperature from influencing other devices in the device in the repairing process, the recess is better repaired in an auxiliary mode, and the repairing speed of the recess is improved, it is ensured that the time taken by the operator when repairing the groove can be reduced.
Drawings
FIG. 1 is an axial schematic view of the structure of the present invention;
FIG. 2 is a partial isometric view of the structure of the present invention;
FIG. 3 is a partial isometric view of the structure of the present invention;
FIG. 4 is a schematic partial cross-sectional front view of the structure of the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention.
In the figure: 1. a base plate; 2. a power supply device; 3. a display; 4. fixing the leather sheath; 5. a transfer hose; 6. a connecting box; 7. a handrail; 8. a housing; 9. a first thermal insulation plate; 10. a second thermal insulation plate; 11. a positioning ring; 12. a sealing collar; 13. a main hydraulic lever switch; 14. a heating device switch; 15. the main hydraulic rod; 16. a power supply device; 17. a strong electromagnet device; 18. heating the plate at a high temperature; 19. a heating device; 20. a secondary hydraulic stem; 21. a vacuum pumping device; 22. a suction cup; 23. a signal transmission device; 24. an illumination device; 25. a video recording device; 26. and a support pillar.
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.
Referring to fig. 1-5, a tool for repairing a recess of an automobile steel plate without damage comprises a bottom plate 1, a power supply device 2 is fixedly connected to the top end of the bottom plate 1, a display 3 is fixedly connected to one side of the power supply device 2, a main hydraulic rod 15 and a strong electromagnetic device 17 are arranged in a matched manner through the display 3, an illuminating device 24, a video recording device 25, the main hydraulic rod 13 is pressed down through a main hydraulic rod switch 13 by using a transmission hose 5 when a suction cup 22 in a device shell 8 is adsorbed by the automobile steel plate around the recess, the power supply device 2 is started, the main hydraulic rod 15 firstly moves the strong electromagnetic device 17 into the recess, the power supply device 16 is started, the power supply device 16 supplies power to the strong electromagnetic device 17 through the strong electromagnetic device 17, so that the inner side of the recess is tightly connected with the device, when the main hydraulic rod 15 is used for stretching the dent, the lighting device 24 and the video device 25 are started, the signal transmission device 23 displays the image by using the display 3, so that an operator can conveniently observe the dent, after the dent is repaired, the device is stopped, the effect of repairing the dent is achieved, the dent is better repaired without damage, the adjustment capability of repairing the dent is improved, the quality of repairing the dent without damage is ensured, the fixed leather sheath 4 is arranged below the display 3, the inner diameter of the fixed leather sheath 4 is equal to the outer diameter of the transmission hose 5, the central lines of the transmission hose 5 inside the fixed leather sheath 4 and the fixed leather sheath 4 are the same straight line, dust is prevented from entering the inside of the transmission hose 5, the transmission hose 5 is arranged inside the fixed leather sheath 4, the collar sealing 12 is fixedly connected to the outer side of one end of the transmission hose 5 far away from the fixed leather sheath 4, the inner diameter of the sealing collar 12 is equal to the outer diameter of the transmission hose 5, the outer diameter of the sealing collar 12 is equal to the inner diameter of the positioning ring 11, the center lines of the sealing collar 12 and the positioning ring 11 are the same straight line, the sealing performance of the transmission hose 5 is improved, the transmission hose 5 is ensured not to enter impurities and the transmission hose 5 is ensured to be fixed, the positioning ring 11 is fixedly connected to the outer side of the sealing collar 12, one end, far away from the fixed leather sheath 4, of the positioning ring 11 is fixedly connected with the connecting box 6, both sides of the connecting box 6 are fixedly connected with the handrails 7, the two handrails 7 are symmetrically distributed on both sides of the connecting box 6, the two handrails 7 are perpendicular to the connecting box 6, the two handrails 7 are on the same straight line, an operator is ensured to have a proper force application point, one end of the inner side of the handrail 7 is, the main hydraulic lever switch 13 controls the main hydraulic lever 15, the heating device switch 14 controls the heating device 19, the connecting box 6 is fixedly connected with the shell 8 at one side far away from the positioning ring 11, the inner side of the shell 8 is provided with a first heat insulation plate 9, the first heat insulation plate 9, a second heat insulation plate 10, an auxiliary hydraulic lever 20, a sucker 22 and the heating device 19 are arranged in a matching way, when the shell 8 of the device is contacted with a recess on an automobile iron plate, the auxiliary hydraulic lever 20 is started, the sucker 22 is extruded around the recess by the auxiliary hydraulic lever 20, a vacuumizing device 21 is started, the vacuumizing device 21 sucks air in the sucker 22, the device is firmly adsorbed on the automobile iron plate, the heating device switch 14 is pressed, the heating device 19 is started, the heating device 19 heats the high-temperature heating plate 18, the high-temperature heating plate 18 appropriately heats the periphery of the recess, so that the extensibility of the automobile steel plate is improved, when the main hydraulic rod 15 is used for repairing the recess, the first heat insulation plate 9 and the second heat insulation plate 10 prevent the temperature from influencing other devices in the device in the repairing process, the recess is better repaired in an auxiliary manner, the speed of repairing the recess is improved, the time spent by an operator in repairing the recess can be reduced, the second heat insulation plate 10 is arranged on the inner side of the first heat insulation plate 9, the central lines of the first heat insulation plate 9 and the second heat insulation plate 10 are the same straight line, the inner diameter of the first heat insulation plate 9 is larger than the outer diameter of the second heat insulation plate 10, the outer diameter of the first heat insulation plate 9 is smaller than the inner diameter of the shell 8, the inner part of the device is ensured not to be influenced by the temperature generated by the heating device 19, the main hydraulic rod 15 is arranged in the middle part of the inner side of the second heat insulation plate 10, one end of a piston rod of the main hydraulic rod 15 is fixedly connected with an electric power supply device 16, one end of the electric power supply device 16 far away from the main hydraulic rod 15 is fixedly connected, the two sides of the main hydraulic rod 15 are both provided with support columns 26, one end of each support column 26, which is far away from the shell 8, is fixedly connected with a signal transmission device 23, one end of each signal transmission device 23, which is far away from the shell 8, is fixedly connected with a video device 25, the number of the video devices 25 is two, the two video devices 25 are symmetrically distributed on the two sides of the main hydraulic rod 15, the two video devices 25 are parallel to the main hydraulic rod 15, the video devices 25 can display the sunken restoration condition on the display 3 in real time by using the signal transmission devices 23, the two sides of each video device 25 are both provided with illuminating devices 24, the bottom of an interlayer of the first heat insulation plate 9 and the second heat insulation plate 10 is provided with a heating device 19, the output end of the heating device 19 is fixedly connected with a high-temperature heating plate 18, the bottom of the interlayer of the first heat insulation plate 9 and the shell 8 is fixedly connected with auxiliary hydraulic rods 20, the number of the auxiliary hydraulic rods 20 is eight, the eight, eight perpendicular sucking discs 22 of vice hydraulic stem 20 guarantee can be stable move sucking disc 22 to the automobile steel sheet on, piston rod one end fixedly connected with sucking disc 22 of vice hydraulic stem 20, sucking disc 22 has eight, eight sucking discs 22 are equidistant annular array and distribute in the intermediate layer that first heat insulating board 9 and shell 8 formed, guarantee that sucking disc 22 is in the same place the stable and device connection of automobile steel sheet after utilizing evacuating device 21, the inside of sucking disc 22 is equipped with evacuating device 21.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
The working principle is as follows: when the device works, firstly, the device is moved to a proper position, the shell 8 of the device is contacted with a dent on an iron plate of an automobile, an auxiliary hydraulic rod 20 is started, the auxiliary hydraulic rod 20 extrudes a suction cup 22 around the dent, a vacuumizing device 21 is started, the vacuumizing device 21 sucks air in the suction cup 22, the device is firmly adsorbed on the iron plate of the automobile, a heating device switch 14 is pressed down, a heating device 19 is started, the heating device 19 heats a high-temperature heating plate 18, the high-temperature heating plate 18 appropriately heats the periphery of the dent, the extensibility of the steel plate of the automobile is improved, a power supply device 2 is started, the power supply device 2 utilizes a transmission hose 5 to supply sufficient power for a main hydraulic rod 15, a main hydraulic rod switch 13 is pressed down, the main hydraulic rod 15 firstly moves a strong electromagnet device 17 into the dent, a power supply device 16 is started, the power supply device 16 supplies power for the strong electromagnet device 17, strong electromagnetic device 17 produces stronger magnetic force, makes sunken inboard and device fastening connection, utilizes main hydraulic stem 15 to stretch the sunken while, starts lighting device 24 and video recording device 25, and signal transmission device 23 utilizes display 3 to show the image, makes things convenient for operating personnel to observe the sunken, and when sunken restoration back, stop device accomplishes the restoration to the sunken.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a sunken harmless repair instrument of car steel sheet, includes bottom plate (1), its characterized in that: the top end of the bottom plate (1) is fixedly connected with a power supply device (2), one side of the power supply device (2) is fixedly connected with a display (3), a fixed leather sheath (4) is arranged below the display (3), a transmission hose (5) is arranged inside the fixed leather sheath (4), the transmission hose (5) is fixedly connected with a sealed collar (12) outside one end of the fixed leather sheath (4), the outside of the sealed collar (12) is fixedly connected with a positioning ring (11), one end of the fixed leather sheath (4) is far away from the positioning ring (11) is fixedly connected with a connecting box (6), handrails (7) are fixedly connected to the two sides of the connecting box (6), one end of the inner side of each handrail (7) is fixedly connected with a main hydraulic rod switch (13), and the other end of the inner side of each handrail (7) is fixedly connected with a heating device switch (14), a shell (8) is fixedly connected to one side, far away from the positioning ring (11), of the connecting box (6), a first heat insulation plate (9) is arranged on the inner side of the shell (8), a second heat insulation plate (10) is arranged on the inner side of the first heat insulation plate (9), a main hydraulic rod (15) is arranged in the middle of the inner side of the second heat insulation plate (10), an electric power supply device (16) is fixedly connected to one end of a piston rod of the main hydraulic rod (15), a strong electromagnet device (17) is fixedly connected to one end, far away from the main hydraulic rod (15), of the electric power supply device (16), supporting columns (26) are arranged on two sides of the main hydraulic rod (15), a signal transmission device (23) is fixedly connected to one end, far away from the shell (8), of the signal transmission device (23) is fixedly connected to a video recording device (25), and illumination devices (24) are arranged on two sides of the video recording device (25), the bottom of the first heat insulation plate (9) and the bottom of the second heat insulation plate (10) are provided with a heating device (19), an output end fixedly connected with high-temperature heating plate (18) of the heating device (19), the bottom fixedly connected with auxiliary hydraulic rods (20) of the first heat insulation plate (9) and the shell (8) are arranged in the interlayer, one end of a piston rod of each auxiliary hydraulic rod (20) is fixedly connected with a sucker (22), and the inside of each sucker (22) is provided with a vacuumizing device (21).
2. The tool for repairing the dent of the automobile steel plate in the nondestructive way as claimed in claim 1, wherein: the two video recording devices (25) are symmetrically distributed on two sides of the main hydraulic rod (15), and the two video recording devices (25) are parallel to the main hydraulic rod (15).
3. The tool for repairing the dent of the automobile steel plate in the nondestructive way as claimed in claim 1, wherein: the handrail (7) have two, two handrail (7) symmetric distribution is in the both sides of connecting box (6), two handrail (7) perpendicular connecting box (6), two handrail (7) are on same straight line.
4. The tool for repairing the dent of the automobile steel plate in the nondestructive way as claimed in claim 1, wherein: the central lines of the first heat insulation plate (9) and the second heat insulation plate (10) are the same straight line, the inner diameter of the first heat insulation plate (9) is larger than the outer diameter of the second heat insulation plate (10), and the outer diameter of the first heat insulation plate (9) is smaller than the inner diameter of the shell (8).
5. The tool for repairing the dent of the automobile steel plate in the nondestructive way as claimed in claim 1, wherein: the internal diameter of sealing neck ring (12) equals the external diameter of transmission hose (5), the external diameter of sealing neck ring (12) equals the internal diameter of holding ring (11), the central line of sealing neck ring (12) and holding ring (11) is same straight line.
6. The tool for repairing the dent of the automobile steel plate in the nondestructive way as claimed in claim 1, wherein: eight auxiliary hydraulic rods (20) are distributed at the bottom of an interlayer formed by the first heat insulation plate (9) and the shell (8) in an equidistant annular array mode, and eight auxiliary hydraulic rods (20) are perpendicular to the suckers (22).
7. The tool for repairing the dent of the automobile steel plate in the nondestructive way as claimed in claim 1, wherein: the eight sucking discs (22) are distributed in an interlayer formed by the first heat insulation plate (9) and the shell (8) in an equidistant annular array mode.
8. The tool for repairing the dent of the automobile steel plate in the nondestructive way as claimed in claim 1, wherein: the inner diameter of the fixed leather sheath (4) is equal to the outer diameter of the transmission hose (5), and the central lines of the transmission hose (5) inside the fixed leather sheath (4) and the fixed leather sheath (4) are the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366036.3A CN112337994A (en) | 2020-11-29 | 2020-11-29 | Car steel sheet is sunken harmless repair instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366036.3A CN112337994A (en) | 2020-11-29 | 2020-11-29 | Car steel sheet is sunken harmless repair instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112337994A true CN112337994A (en) | 2021-02-09 |
Family
ID=74366186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011366036.3A Withdrawn CN112337994A (en) | 2020-11-29 | 2020-11-29 | Car steel sheet is sunken harmless repair instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112337994A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974573A (en) * | 2021-02-25 | 2021-06-18 | 河南工业职业技术学院 | Automobile metal plate correction and repair device |
| CN113607122A (en) * | 2021-08-23 | 2021-11-05 | 中国建筑第八工程局有限公司 | Intelligent trolley, equipment and method for correcting interior of box-type steel plate wall |
| CN114770026A (en) * | 2022-03-18 | 2022-07-22 | 广水安江水电开发有限公司 | Elastic oil tank repairing tool and repairing method thereof |
-
2020
- 2020-11-29 CN CN202011366036.3A patent/CN112337994A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974573A (en) * | 2021-02-25 | 2021-06-18 | 河南工业职业技术学院 | Automobile metal plate correction and repair device |
| CN113607122A (en) * | 2021-08-23 | 2021-11-05 | 中国建筑第八工程局有限公司 | Intelligent trolley, equipment and method for correcting interior of box-type steel plate wall |
| CN113607122B (en) * | 2021-08-23 | 2022-11-25 | 中国建筑第八工程局有限公司 | Intelligent trolley, equipment and method for correcting interior of box-type steel plate wall |
| CN114770026A (en) * | 2022-03-18 | 2022-07-22 | 广水安江水电开发有限公司 | Elastic oil tank repairing tool and repairing method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20210209 |