CN113103873A - Motor car pantograph carbon slide board machine carries and detects balanced structure - Google Patents
Motor car pantograph carbon slide board machine carries and detects balanced structure Download PDFInfo
- Publication number
- CN113103873A CN113103873A CN202110345441.5A CN202110345441A CN113103873A CN 113103873 A CN113103873 A CN 113103873A CN 202110345441 A CN202110345441 A CN 202110345441A CN 113103873 A CN113103873 A CN 113103873A
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 244000309464 bull Species 0.000 claims 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/20—Details of contact bow
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses an onboard detection balance structure of a pantograph carbon slide plate of a bullet train, which comprises a fixed bottom plate, wherein the top surface of the fixed bottom plate is fixedly connected with a supporting frame, the top surface of the supporting frame is rotatably connected with a rotating block, the top surface of the rotating block is fixedly connected with a placing table, the positions of the bottom surface of the placing table, which are positioned at two sides of the rotating block, are respectively provided with a first transmission mechanism and a second transmission mechanism, and a balance adjusting mechanism is arranged in the rotating block; the first transmission mechanism comprises a first slide rail fixedly connected to the bottom surface of the placing table, the first slide rail is connected with a first slide block in a sliding mode, the bottom surface of the first slide block is rotatably connected with the top end of a first electric push rod, and the first electric push rod is rotatably connected to the top surface of the fixed bottom plate; the second transmission mechanism comprises a second slide rail fixedly connected with the bottom surface of the placing table, and the second slide rail is connected with a second slide block in a sliding mode. According to the pendulum bob detection device, the position of the placing table does not need to be adjusted manually, the pendulum bob can be automatically adjusted according to the position of the pendulum bob, the adjustment is accurate, and the detection result is more accurate.
Description
Technical Field
The invention relates to the technical field of pantograph detection equipment, in particular to an onboard detection balance structure of a carbon pantograph slider of a bullet train.
Background
For a locomotive group running at a high speed, the most critical part on the locomotive body is a roof pantograph carbon slide plate which is an important electricity collecting part for leading the locomotive to have electric energy, is responsible for transmitting the electric energy to a motor car in a friction contact manner with a power grid during the high-speed running of a train, ensures that the motor car is normally powered, and can generate mechanical abrasion and electrical abrasion during the running process of a pantograph, so that the carbon slide plate abraded to a certain limit or abnormally abraded can be replaced in time to keep the equipment in a good operating state, and ensure that the vehicle runs in an optimal state, therefore, a detection device is required to be used for carrying out periodic detection on the carbon slide plate.
In contrast, chinese patent No. CN208936994U discloses a carbon slide detecting apparatus and a carbon slide detecting table, the apparatus including: base component and set up on base component: the length detection assembly comprises two length detection modules, and the length detection modules are provided with first measurement ends matched with the end parts of the carbon sliding plates; the pitch detection assembly comprises two pitch detection modules, the pitch detection modules are provided with second measuring ends corresponding to the air holes of the carbon sliding plate, and the pitch detection assembly is positioned between the two length detection modules; and the height detection module is used for detecting the height of the carbon sliding plate and is arranged between the two pitch detection modules.
Although the invention has high detection efficiency, short detection time and simple detection mode, the detection device is generally used on an airplane, so that the balance of the placement position can not be ensured sometimes, which affects the detection precision.
Therefore, an onboard detection balance structure of a pantograph carbon slide plate of the bullet train is provided for solving the problems.
Disclosure of Invention
The invention aims to provide an onboard detection balance structure of a pantograph carbon slide plate of a bullet train, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a carbon slide board airborne detection balance structure for a pantograph of a bullet train comprises a fixed bottom plate, wherein the top surface of the fixed bottom plate is fixedly connected with a supporting frame, the top surface of the supporting frame is rotatably connected with a rotating block, the top surface of the rotating block is fixedly connected with a placing table, the positions of the bottom surface of the placing table, which are positioned at two sides of the rotating block, are respectively provided with a first transmission mechanism and a second transmission mechanism, and a balance adjusting mechanism is arranged in the rotating block;
preferably, the first transmission mechanism comprises a first slide rail fixedly connected to the bottom surface of the placing table, the first slide rail is connected with a first slide block in a sliding manner, the bottom surface of the first slide block is rotatably connected with the top end of a first electric push rod, and the first electric push rod is rotatably connected to the top surface of the fixed bottom plate; the second transmission mechanism comprises a second slide rail fixedly connected to the bottom surface of the placing table, a second slide block is slidably connected in the second slide rail, the bottom surface of the second slide block is rotatably connected to the top end of a second electric push rod, and the second electric push rod is rotatably connected to the top surface of the fixed bottom plate;
preferably, the balance adjusting mechanism comprises a semicircular plate fixedly connected to the center of the top surface inside the rotating block, the center of the semicircular plate is rotatably connected to the top end of the rotating rod, the bottom end of the rotating rod is fixedly connected to a pendulum, the semicircular plate is located on two sides of the rotating rod and fixedly connected to a first contact switch and a second contact switch respectively, the first contact switch is close to the first transmission mechanism, and the second contact switch is close to the second transmission mechanism.
Preferably, the first contact switch controls the first electric push rod to extend and the second electric push rod to retract, and the second contact switch controls the first electric push rod to retract and the second electric push rod to extend.
Preferably, the first slider and the second slider are of a T-shaped slider structure or a dovetail slider structure.
Preferably, the supporting frame side wall is provided with a locking assembly, the locking assembly comprises a groove formed in the inner side surface of the supporting frame side wall, the groove is internally and slidably connected with a locking plate, the locking plate is in contact with the side wall of the rotating block, the side wall of the groove is provided with two second sliding holes, the second sliding holes are internally and slidably connected with second sliding rods, the second sliding rods are fixedly connected with the locking plate, the side wall of the groove is provided with third threaded through holes, the third threaded through holes are in threaded connection with locking bolts, and the locking bolts are rotatably connected with the locking plate.
Preferably, place two carbon slide fixed establishment of platform top surface rigid coupling, carbon slide fixed establishment is including rotating the connection and placing the rotation piece of platform top surface, it is U type structure to rotate the piece, it sets up second screw thread through-hole to rotate the piece free end, it sets up the screw hole to place the corresponding second screw thread through-hole position in platform surface, second screw thread through-hole and screw hole threaded connection fixing bolt.
Preferably, two first slide holes are formed in the top surface of the rotating part, two first slide rods are slidably connected in the first slide holes, a movable block is fixedly connected to the bottom end of each first slide rod, a sliding cavity is formed in the bottom surface of each movable block, a press plate is slidably connected in the sliding cavity, a plurality of springs are fixedly connected to the top surface of the press plate, and the top ends of the springs are fixedly connected to the top surface of the sliding cavity.
Compared with the prior art, the invention has the beneficial effects that:
according to the pendulum bob detection device, the position of the placing table does not need to be adjusted manually, the pendulum bob can be automatically adjusted according to the position of the pendulum bob, the adjustment is accurate, and the detection result is more accurate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged structural view of the cross-sectional structure of the present invention;
FIG. 3 is an enlarged structural view of the cross-sectional structure of the other side of the present invention;
FIG. 4 is an enlarged structural view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the carbon slide fixing mechanism according to the present invention.
In the figure: the device comprises a fixed bottom plate 1, a supporting frame 2, a rotating block 3, a placing table 4, a first transmission mechanism 5, a second transmission mechanism 6, a balance adjusting mechanism 7, a carbon sliding plate 8 fixing mechanism, a locking assembly 9, a first sliding rail 51, a first sliding block 52, a first electric push rod 53, a second sliding rail 61, a second sliding block 62, a second electric push rod 63, a semicircular plate 71, a rotating rod 72, a pendulum bob 73, a first contact switch 74, a second contact switch 75, a rotating part 81, a first sliding hole 82, a second sliding rod 83, a movable block 84, a sliding cavity 85, a pressing plate 86, a spring 87, a first threaded through hole 88, an adjusting bolt 89, a second threaded through hole 810, a threaded hole 811, a fixing bolt 812, a slot 91, a locking plate 92, a second sliding hole 93, a second sliding rod 94, a third threaded through hole 95 and a locking bolt 96.
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.
Referring to fig. 1-5, the present invention provides a technical solution: a carbon slide board airborne detection balance structure for a pantograph of a bullet train comprises a fixed bottom plate 1, wherein the top surface of the fixed bottom plate 1 is fixedly connected with a supporting frame 2, the top surface of the supporting frame 2 is rotatably connected with a rotating block 3, the top surface of the rotating block 3 is fixedly connected with a placing table 4, the positions of the bottom surface of the placing table 4, which are positioned at two sides of the rotating block 3, are respectively provided with a first transmission mechanism 5 and a second transmission mechanism 6, and a balance adjusting mechanism 7 is arranged in the rotating block 3;
referring to fig. 5, the top surface of the placing table 4 is fixedly connected with two carbon sliding plate fixing mechanisms 8, each carbon sliding plate fixing mechanism 8 comprises a rotating member 81 rotatably connected to the top surface of the placing table 4, the rotating member 81 is of a U-shaped structure, the free end of the rotating member 81 is provided with a second threaded through hole 810, the surface of the placing table 4 is provided with a threaded hole 811 corresponding to the second threaded through hole 810, the second threaded through hole 810 and the threaded hole 811 are in threaded connection with a fixing bolt 812, the top surface of the rotating member 81 is provided with two first sliding holes 82, the two first sliding holes 82 are slidably connected with two first sliding rods 83, the bottom end of each first sliding rod 83 is fixedly connected with a movable block 84, the bottom surface of each movable block 84 is provided with a sliding cavity 85, the sliding cavity 85 is slidably connected with a pressing plate 86, the top surface of the pressing plate 86 is fixedly connected with a plurality of springs 87, the top ends of the plurality of the springs 87 are fixedly, the spring 87 prevents excessive pressure from damaging the carbon slide.
Referring to fig. 2, the first transmission mechanism 5 includes a first slide rail 51 fixedly connected to the bottom surface of the placing table 4, the first slide rail 51 is slidably connected to a first slide block 52, the bottom surface of the first slide block 52 is rotatably connected to the top end of a first electric push rod 53, and the first electric push rod 53 is rotatably connected to the top surface of the fixed base plate 1; the second transmission mechanism 6 comprises a second slide rail 61 fixedly connected to the bottom surface of the placing table 4, a second slide block 62 is slidably connected to the second slide rail 61, the bottom surface of the second slide block 62 is rotatably connected to the top end of a second electric push rod 63, and the second electric push rod 63 is rotatably connected to the top surface of the fixed bottom plate 1; the balance adjusting mechanism 7 comprises a semicircular plate 71 fixedly connected to the center position of the top surface inside the rotating block 3, the center position of the semicircular plate 71 is rotatably connected to the top end of a rotating rod 72, the bottom end of the rotating rod 72 is fixedly connected to a pendulum 73, the semicircular plate 71 is positioned on two sides of the rotating rod 72 and is fixedly connected to a first contact switch 74 and a second contact switch 75 respectively, the first contact switch 74 is close to the first transmission mechanism 5, the second contact switch 74 is close to the second transmission mechanism 5, the first contact switch 74 controls the first electric push rod 53 to extend, the second electric push rod 63 to retract, the second contact switch 75 controls the first electric push rod 53 to retract and the second electric push rod 63 to extend. When the position of the placing table 4 is unbalanced, the pendulum 73 drives the rotating rod 72 to rotate, the rotating rod 72 is in contact with the first contact switch 74 or the second contact switch 75, so as to drive the first transmission mechanism 5 and the second transmission mechanism 6 to start working, the horizontal position of the placing table 4 is adjusted, the rotating rod 72 is in the vertical position under the action of the pendulum 73, therefore, when the placing table 4 is in the balanced position, the rotating rod 72 is in the center of the semicircular plate 71, the rotating rod can not be in contact with the first contact switch 74 or the second contact switch 75 on the two sides, the two transmission mechanisms are not started, and the balance adjustment of the placing table 4 is completed.
Referring to fig. 2, the first slider 52 and the second slider 62 are T-shaped slider structures or dovetail slider structures, so as to prevent the first slider 52 and the second slider 62 from falling off from the first slide rail 51 and the second slide rail 52.
Referring to fig. 3-4, a locking assembly 9 is provided on a side wall of the supporting frame 2, the locking assembly 9 includes a slot 91 provided on an inner side surface of the side wall of the supporting frame 2, a locking plate 92 is slidably connected in the slot 91, the locking plate 92 contacts with a side wall of the turning block 3, two second sliding holes 93 are provided on the side wall of the slot 91, a second sliding rod 94 is slidably connected in the second sliding hole 93, the second sliding rod 94 is fixedly connected to the locking plate 92, a third threaded through hole 95 is provided on the side wall of the slot 91, a locking bolt 96 is threadedly connected in the third threaded through hole 95, the locking bolt 96 is rotatably connected to the locking plate 92, after the balance adjustment of the placing table 4 is completed, the locking bolt 96 can be rotated to lock the turning block 3, and the.
The working principle is as follows: when the invention is used, the carbon sliding plate is fixed on the placing table 4 through the carbon sliding plate fixing mechanism 8, the fixed bottom plate 1 is fixed on a required place, when the position of the placing table 4 is unbalanced, the pendulum 73 rotates the rotating rod 72, so that the rotating rod 72 contacts the first contact switch 74 or the second contact switch 75, thereby driving the first transmission mechanism 5 and the second transmission mechanism 6 to start working, adjusting the horizontal position of the placing table 4, the rotating rod 72 is in the vertical position under the action of the pendulum bob 73, therefore, when the placing table 4 is in the balance position, the rotating rod 72 is in the center of the semicircular plate 71, the first contact switch 74 or the second contact switch 75 on both sides is not touched, the two transmission mechanisms are not started, the balance adjustment of the placing table 4 is completed, and when the balance adjustment of the placing table 4 is completed, the locking bolt 96 can be rotated to lock the turning block 3, and the placing table 4 is prevented from rotating again and losing the balance position. According to the pendulum bob detection device, the position of the placing table does not need to be adjusted manually, the pendulum bob can be automatically adjusted according to the position of the pendulum bob, the adjustment is accurate, and the detection result is more accurate.
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 (6)
1. The utility model provides a motor car pantograph carbon slide machine carries and detects balanced structure, includes PMKD (1), its characterized in that: the top surface of the fixed bottom plate (1) is fixedly connected with a supporting frame (2), the top surface of the supporting frame (2) is rotatably connected with a rotating block (3), the top surface of the rotating block (3) is fixedly connected with a placing table (4), the positions of the bottom surface of the placing table (4) at two sides of the rotating block (3) are respectively provided with a first transmission mechanism (5) and a second transmission mechanism (6), and a balance adjusting mechanism (7) is arranged in the rotating block (3);
the first transmission mechanism (5) comprises a first sliding rail (51) fixedly connected to the bottom surface of the placing table (4), the first sliding rail (51) is connected with a first sliding block (52) in a sliding mode, the bottom surface of the first sliding block (52) is rotatably connected with the top end of a first electric push rod (53), and the first electric push rod (53) is rotatably connected to the top surface of the fixed bottom plate (1);
the second transmission mechanism (6) comprises a second slide rail (61) fixedly connected to the bottom surface of the placing table (4), a second slide block (62) is connected in the second slide rail (61) in a sliding mode, the bottom surface of the second slide block (62) is rotatably connected to the top end of a second electric push rod (63), and the second electric push rod (63) is rotatably connected to the top surface of the fixed bottom plate (1);
balance adjustment mechanism (7) include semicircle board (71) that the rigid coupling put at the inside top surface central point of rotor block (3), semicircle board (71) central point puts and rotates and connect bull stick (72) top, bull stick (72) bottom rigid coupling pendulum (73), semicircle board (71) are located bull stick (72) both sides position rigid coupling first contact switch (74) and second contact switch (75) respectively, first contact switch (74) are close to first drive mechanism (5), second contact switch (74) are close to second drive mechanism (5).
2. The balance structure for the onboard detection of the pantograph carbon slide plate of the bullet train according to claim 1, wherein: the first contact switch (74) controls the first electric push rod (53) to extend and the second electric push rod (63) to retract, and the second contact switch (75) controls the first electric push rod (53) to retract and the second electric push rod (63) to extend.
3. The balance structure for the onboard detection of the pantograph carbon slide plate of the bullet train according to claim 1, wherein: the first sliding block (52) and the second sliding block (62) are of a T-shaped sliding block structure or a dovetail sliding block structure.
4. The balance structure for the onboard detection of the pantograph carbon slide plate of the bullet train according to claim 1, wherein: locking Assembly (9) are seted up to carriage (2) lateral wall, locking Assembly (9) are including seting up fluting (91) at carriage (2) lateral wall medial surface, sliding connection locking plate (92) in fluting (91), locking plate (92) contact turning block (3) lateral wall, and two second slide opening (93) are seted up to affiliated fluting (91) lateral wall, sliding connection second slide bar (94) in second slide opening (93), second slide bar (94) rigid coupling locking plate (92), third screw thread through-hole (95) are seted up to fluting (91) lateral wall, third screw thread through-hole (95) female connection locking bolt (96), locking bolt (96) rotate and connect locking plate (92).
5. The balance structure for the onboard detection of the pantograph carbon slide plate of the bullet train according to claim 1, wherein: place two carbon slide fixed establishment (8) of platform (4) top surface rigid coupling, carbon slide fixed establishment (8) are including rotating the rotation piece (81) of connecting placing platform (4) top surface, it is U type structure to rotate piece (81), rotate piece (81) free end and set up second screw thread through-hole (810), place platform (4) surface and correspond second screw thread through-hole (810) position and set up screw hole (811), second screw thread through-hole (810) and screw hole (811) threaded connection fixing bolt (812).
6. The balance structure for the onboard detection of the pantograph carbon slide plate of the bullet train as claimed in claim 5, wherein: rotate piece (81) top surface and offer two first slide opening (82), two slide opening (82) two first slide bars (83) of sliding connection in first slide opening (82), first slide bar (83) bottom rigid coupling movable block (84), sliding chamber (85) are offered to movable block (84) bottom surface, sliding chamber (85) sliding connection clamp plate (86) in sliding chamber (85), a plurality of springs (87) of clamp plate (86) top surface rigid coupling, it is a plurality of spring (87) top rigid coupling sliding chamber (85) top surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345441.5A CN113103873A (en) | 2021-03-31 | 2021-03-31 | Motor car pantograph carbon slide board machine carries and detects balanced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345441.5A CN113103873A (en) | 2021-03-31 | 2021-03-31 | Motor car pantograph carbon slide board machine carries and detects balanced structure |
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| Publication Number | Publication Date |
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| CN113103873A true CN113103873A (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110345441.5A Pending CN113103873A (en) | 2021-03-31 | 2021-03-31 | Motor car pantograph carbon slide board machine carries and detects balanced structure |
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| FR2655512A1 (en) * | 1989-12-08 | 1991-06-14 | Eden Vert | Automatic machine for pruning the faces of trees exhibiting a so-called "curtain" configuration |
| CN107997505A (en) * | 2017-12-22 | 2018-05-08 | 孙培宗 | A kind of system for being processed to photo frame |
| CN208251580U (en) * | 2018-04-28 | 2018-12-18 | 温州欧帝林装饰设计有限公司 | A kind of decorative engineering floor ceramic tile paving device |
| CN109141308A (en) * | 2018-09-30 | 2019-01-04 | 大同新成新材料股份有限公司 | A kind of carbon slipper size measurement tool |
| CN210418536U (en) * | 2019-08-14 | 2020-04-28 | 江苏蓝沛新材料科技有限公司 | Tectorial membrane is with unreeling mechanism of rectifying |
| CN211040144U (en) * | 2019-08-14 | 2020-07-17 | 益阳超益机械有限公司 | Mining machinery operation supporting platform capable of automatically adjusting level |
| CN111636663A (en) * | 2020-05-25 | 2020-09-08 | 胡勇强 | Construction platform for prefabricated assembly type building |
-
2021
- 2021-03-31 CN CN202110345441.5A patent/CN113103873A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655512A1 (en) * | 1989-12-08 | 1991-06-14 | Eden Vert | Automatic machine for pruning the faces of trees exhibiting a so-called "curtain" configuration |
| CN107997505A (en) * | 2017-12-22 | 2018-05-08 | 孙培宗 | A kind of system for being processed to photo frame |
| CN208251580U (en) * | 2018-04-28 | 2018-12-18 | 温州欧帝林装饰设计有限公司 | A kind of decorative engineering floor ceramic tile paving device |
| CN109141308A (en) * | 2018-09-30 | 2019-01-04 | 大同新成新材料股份有限公司 | A kind of carbon slipper size measurement tool |
| CN210418536U (en) * | 2019-08-14 | 2020-04-28 | 江苏蓝沛新材料科技有限公司 | Tectorial membrane is with unreeling mechanism of rectifying |
| CN211040144U (en) * | 2019-08-14 | 2020-07-17 | 益阳超益机械有限公司 | Mining machinery operation supporting platform capable of automatically adjusting level |
| CN111636663A (en) * | 2020-05-25 | 2020-09-08 | 胡勇强 | Construction platform for prefabricated assembly type building |
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Application publication date: 20210713 |
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