CN117301255B - Attached vibrator for box girder prefabricated formwork - Google Patents
Attached vibrator for box girder prefabricated formwork Download PDFInfo
- Publication number
- CN117301255B CN117301255B CN202311620853.0A CN202311620853A CN117301255B CN 117301255 B CN117301255 B CN 117301255B CN 202311620853 A CN202311620853 A CN 202311620853A CN 117301255 B CN117301255 B CN 117301255B
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- fixedly connected
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- seted
- swash plate
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- 238000009415 formwork Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 230000003028 elevating effect Effects 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 23
- 238000005452 bending Methods 0.000 description 8
- 238000005457 optimization Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to the technical field of attached vibrators, in particular to an attached vibrator for a box girder prefabricated formwork, which comprises a first inclined plate, a vibrator main body and a second inclined plate, wherein a positioning mechanism is arranged on the left side of the first inclined plate, one side of the positioning mechanism is fixedly connected with a bent plate which is arranged in a front-back symmetrical mode, the other side of the positioning mechanism is fixedly connected with the prefabricated formwork, the upper end of the bent plate is fixedly connected with a square block, a sliding hole is formed in the inner side of the first inclined plate, and a vertical hole is formed in the bottom of the sliding hole formed in the first inclined plate.
Description
Technical Field
The invention relates to the technical field of attached vibrators, in particular to an attached vibrator for a box girder prefabricated formwork.
Background
In the process of manufacturing the box girder by casting the prefabricated templates, in order to ensure the lamination effect of concrete casting, the concrete needs to be cast layer by layer, and as the concrete contains a large number of bubbles and gaps, a concrete vibrating rod needs to be inserted into the concrete, and meanwhile, an attached vibrator is arranged on the prefabricated templates so as to vibrate the concrete in the prefabricated templates, thereby effectively eliminating the bubbles and gaps in the concrete and improving the quality of the box girder after casting.
The attached vibrator is generally fixed on the box girder prefabricated template through the bolt, and in the using process, the attached vibrator continuously vibrates, so that the fixing bolt possibly withdraws wires, and after long-time use, the bolt also possibly is elongated, so that the attached vibrator is unstable, the vibration efficiency is reduced, the safety problem is solved, and the staff is required to monitor regularly to avoid the problem, so that the workload and the engineering cost are increased.
Disclosure of Invention
In order to solve the problems, the invention provides the following technical scheme:
the utility model provides a case roof beam prefabricated form is with adhering to formula vibrator, includes first swash plate, vibrator main part and second swash plate, first swash plate left side is equipped with positioning mechanism, positioning mechanism one side fixedly connected with is the bent plate that the front and back symmetry set up, positioning mechanism is another survey and prefabricated form fixed connection, bent plate upper end fixedly connected with square, the sliding hole has been seted up to first swash plate inboard, the vertical hole has been seted up to the bottom of the sliding hole that first swash plate was seted up, the sliding hole rear side has been seted up flutedly, sliding hole inboard sliding connection has the pin pole, pin pole rear side fixedly connected with spring plate, spring plate right side fixedly connected with extension spring, through square groove fixedly connected with sloping block in the middle of the pin pole, the inclined plane that first swash plate was established and the inclined plane that second swash plate established are mutually laminated, one side fixedly connected with square, the second swash plate inboard has seted up the second pinhole, second one end has been seted up through vibrator main part, the vertical hole has been seted up to the bottom of sliding hole, the sliding hole rear side has been seted up at the same recess through the vertical hole, the vertical hole has been set up at the same recess, the vertical hole is fixed connection with the connecting plate, the vertical hole has the connecting plate and has the fixed connection, the top is kept away from the fixed connection, the top of the fixed connection has the vertical hole, the fixed connection has the top of the connecting plate is equipped with the connecting plate, the top is fixed connection, the top is equipped with the connecting plate through the vertical hole, the connecting plate has the connecting hole through the vertical hole, the movable plate is provided with 2 movable plates, the movable plates are slidably connected to the inner sides of the through holes, one ends of the movable plates are fixedly connected with positioning plates, one ends, far away from the center points of the connecting plates, of the positioning plates are arranged in an arc surface mode, lifting mechanisms are arranged at the lower ends of the clamping plate mechanisms, and when the vertical rods completely enter the vertical holes, the inclined blocks are extruded.
As a further optimization of the invention, a roller groove is formed in one side, close to the positioning mechanism, of the first inclined plate, a roller groove is formed in one side, close to the bent plate, of the second inclined plate, a roller is connected to the inner side of the roller groove in a rotating mode, the first inclined plate is clung to the positioning mechanism through the roller, the positioning mechanism comprises a vertical plate, a first pin hole is formed in the inner side of one end of the vertical plate, and a friction plate is fixedly connected to the lower end of the right side of the vertical plate.
As further optimization of the invention, two bending plates are arranged, the cross section of each bending plate is L-shaped, a sliding rail is fixedly connected to the outer side of each bending plate arranged in front of the bending plates, the outer sides of the sliding rails are in sliding connection with a power line positioning mechanism, the power line positioning mechanism comprises a movable support, a placing plate is fixedly connected to the rear of each movable support, the placing plate is tightly attached to a vibrator main body, a second power line fixing clamping sleeve is fixedly connected to the right side of each movable support, a first power line fixing clamping sleeve is fixedly connected to the rear of each second power line fixing clamping sleeve, and the first power line fixing clamping sleeve and the second power line fixing clamping sleeve are arranged at 90 degrees.
As further optimization of the invention, the two ends of the pin rod are cambered surfaces, and the vertical sections of the pin rod, the first pin hole and the second pin hole are equal in size.
As further optimization of the invention, the lower end of the clamping plate mechanism is provided with the lifting mechanism, the lifting mechanism comprises a hydraulic telescopic rod, a six-edge hole is formed in the inner side of the top end of the hydraulic telescopic rod, a rubber block is fixedly connected to the inner side of the six-edge hole, a fixing column is fixedly connected to the inner side of the rubber block, the upper end of the fixing column is fixedly connected with the connecting plate, and the fixing column and the connecting plate are arranged at 90 degrees.
Compared with the prior art, the invention has the beneficial effects that:
1. in the actual use process, the attached vibrator can be stably arranged on the box girder prefabricated template through the structural actions of the arranged first inclined plate, the second inclined plate, the positioning mechanism, the bent plate and other parts, and the first inclined plate can always keep downward force due to vibration generated in the working process of the attached vibrator, so that the connection between the first inclined plate and the second inclined plate is more stable, the problem that screws are removed or the screws are lengthened through bolt fixing is effectively avoided, and the workload is effectively reduced;
2. according to the invention, the position of the attached vibrator can be adjusted according to the concrete pouring height in the precast formwork of the box girder in the actual use process through the lifting mechanism, so that the working effect of the attached vibrator can be normally exerted all the time, in addition, in the process of repairing and maintaining the attached vibrator in the later period, the attached vibrator can be placed at the lowest point and removed, the disassembly and installation difficulty is reduced, and the efficiency is improved;
3. according to the invention, the power line of the attached vibrator can be stably limited by arranging the power line positioning mechanism, so that the problem of abrasion of the power line caused by contact between the power line and other objects in the working process of the attached vibrator can be avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an exploded view of a second swash plate mounting location according to the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 at A;
FIG. 4 is a schematic view of the elevating mechanism of the present invention;
FIG. 5 is a schematic view of a card mechanism according to the present invention;
FIG. 6 is a schematic view of the installation position of the clamping block according to the present invention;
FIG. 7 is a schematic diagram of a power cord positioning mechanism according to the present invention;
fig. 8 is a schematic diagram of the structure at B in fig. 2.
In the figure: 1-prefabricated templates, 2-lifting mechanisms, 201-hydraulic telescopic rods, 202-hexagonal holes, 203-rubber blocks, 204-fixed columns, 205-clamping plate mechanisms, 251-connecting plates, 252-connecting holes, 253-perforated holes, 254-moving plates, 255-positioning plates, 256-return springs, 257-fixed blocks, 3-positioning mechanisms, 301-vertical plates, 302-first pin holes, 303-friction plates, 4-bent plates, 5-square blocks, 6-first inclined plates, 7-vibrator welding plates, 8-vibrator bodies, 9-grooves, 10-sliding holes, 11-vertical holes, 12-second inclined plates, 13-second pin holes, 14-vertical rods, 15-roller grooves, 16-rollers, 17-pin rods, 18-square grooves, 19-inclined plates, 20-spring plates, 21-telescopic springs, 22-clamping blocks, 23-clamping grooves, 24-power wire positioning mechanisms, 2401-moving brackets, 2402-placing plates, 2403-first power wire fixing clamping sleeves, 4-second power wire fixing clamping sleeves and 24025-sliding rails.
Detailed Description
Referring to fig. 1-8, the present invention provides a technical solution:
the utility model provides an attached vibrator for prefabricated template of case roof beam, including first swash plate 6, vibrator main part 8 and second swash plate 12, first swash plate 6 left side is equipped with positioning mechanism 3, positioning mechanism 3 one side fixedly connected with is the bent plate 4 that the front and back symmetry set up, positioning mechanism 3 another survey and prefabricated template 1 fixed connection, bent plate 4 upper end fixedly connected with square 5, slide hole 10 has been seted up to first swash plate 6 inboard, vertical hole 11 has been seted up to the bottom of slide hole 10 has been seted up to first swash plate 6, recess 9 has been seted up to slide hole 10 rear side has been seted up to first swash plate 6, slide hole 10 inboard sliding connection has round pin pole 17, round pin pole 17 rear side fixedly connected with spring plate 20, spring plate 20 right side fixedly connected with extension spring 21, through square groove 18 fixedly connected with sloping block 19 in the middle of the round pin pole 17, the inclined plane that first swash plate 6 was established and second swash plate 12 are laminated each other, one side fixedly connected with montant 14 that second swash plate 12 is close to first swash plate 6, second swash plate 12 top inboard has seted up second pinhole 13, second swash plate 12 one end is through vibrator main part 7 fixedly connected with vibrator 8.
As shown in fig. 1 and fig. 2, a roller groove 15 is formed at one end of each of the first inclined plate 6 and the second inclined plate 12, a roller 16 is rotatably connected to the inner side of the roller groove 15, the first inclined plate 6 is tightly attached to the positioning mechanism 3 through the roller 16, the positioning mechanism 3 comprises a vertical plate 301, a first pin hole 302 is formed in the inner side of one end of the vertical plate 301, a friction plate 303 is fixedly connected to one end of the vertical plate 301, and the first inclined plate 6 and the second inclined plate 12 can be tightly attached to the vertical plate 301 and the curved plate 4 through the roller 16;
as shown in fig. 1, fig. 2 and fig. 7, two bending plates 4 are provided, the cross section of each bending plate 4 is in an L shape, a sliding rail 25 is fixedly connected to the outer side of each bending plate 4 arranged in front, the outer side of each sliding rail 25 is in sliding connection with a power line positioning mechanism 24, each power line positioning mechanism 24 comprises a movable bracket 2401, a placing plate 2402 is fixedly connected to the rear of each movable bracket 2401, the placing plate 2402 is tightly attached to a vibrator main body 8, a second power line fixing clamping sleeve 2404 is fixedly connected to the right side of each movable bracket 2401, a first power line fixing clamping sleeve 2403 is fixedly connected to the rear of each second power line fixing clamping sleeve 2404, the first power line fixing clamping sleeve 2403 and the second power line fixing clamping sleeve 2404 are arranged at 90 degrees, and can position a power line of the vibrator in the working process of an attached vibrator, so that the problem that the power line is broken in the working process of the attached vibrator and other objects can be prevented from contacting;
as shown in fig. 2, 3 and 8, the groove 9, the sliding hole 10 and the vertical hole 11 are communicated, the spring plate 20 is slidably connected inside the groove 9, the telescopic spring 21 is fixedly connected inside the groove 9, the vertical hole 11 and the vertical rod 14 are arranged on the same vertical surface, the top end of the vertical rod 14 is in sharp arrangement, and the spring plate 20 can be controlled to reset through the telescopic spring 21; the two ends of the pin rod 17 are cambered surfaces, the vertical sections of the pin rod 17, the first pin hole 302 and the second pin hole 13 are equal in size, and the first inclined plate 6 can be positioned through the pin rod 17;
as shown in fig. 1, fig. 4 and fig. 5, the bottom of the second inclined plate 12 is fixedly connected with a clamping block 22, the inner sides of the front end and the rear end of the clamping block 22 are respectively provided with a clamping groove 23, the second inclined plate 12 is connected with a clamping plate mechanism 205 through the clamping block 22, the clamping plate mechanism 205 comprises a connecting plate 251, the inner side of the connecting plate 251 is provided with a connecting hole 252 and a through hole 253, the inner side of the through hole 253 is fixedly connected with a fixed block 257, the fixed block 257 is fixedly connected with a movable plate 254 through a reset spring 256, one end of the movable plate 254, which is far away from the connecting hole 252, is fixedly connected with a positioning plate 255, 2 movable plates 254 are arranged, the movable plate 254 is slidably connected with the inner side of the through hole 253, one end of the movable plate 254, which is far away from the center point of the connecting plate 251, is provided with an arc surface, and the stability of the whole structure of the device is further improved; the elevating system 2 is equipped with to cardboard mechanism 205 lower extreme, elevating system 2 includes hydraulic telescoping rod 201, six arris holes 202 have been seted up to hydraulic telescoping rod 201 top inboard, six arris holes 202 inboard fixedly connected with rubber piece 203, the inboard fixedly connected with fixed column 204 of rubber piece 203, fixed column 204 upper end and connecting plate 251 fixed connection, and fixed column 204 and connecting plate 251 are 90 setting, hydraulic telescoping rod 201 and riser 301 are parallel setting, the mounted position of adhering to the vibrator can be controlled through elevating system 2 of setting, the influence that the vibrator caused elevating system 2 can be fallen through rubber piece 203 and fixed column 204 of setting simultaneously at the in-process of work, have higher practical value.
The working flow is as follows: the equipment is electrified with an external power supply in the using process, and in the using process of the attached vibrator for the box girder prefabricated template, the attached vibrator can be adjusted in height according to the height of the pouring inside the die in the pouring process because the box girder is poured one by one in the pouring process, and the attached vibrator is adjusted according to actual needs in the mounting process, and the mounting and adjusting process of the attached vibrator is as follows:
firstly, the attached vibrator body 8 is fixedly connected with the clamping plate mechanism 205 by a worker through the vibrator welding plate 7 and the second sloping plate 12, after the fixation is completed, the attached vibrator body 8 can be controlled to move upwards by controlling the hydraulic telescopic rod 201, in the process of moving upwards, the positioning plate 255 is extruded into the connecting plate 251 at the position of the inner side of the bending plate 4, meanwhile, the moving plate 254 fixedly connected with the positioning plate 255 is introduced into the clamping groove 23 to position the second sloping plate 12, at the moment, the second sloping plate 12 is continuously moved upwards, in the process of moving upwards, the vertical rod 14 is introduced into the inner side of the vertical hole 11, the second sloping plate 12 is continuously moved upwards, the vertical rod 14 is gradually inserted into the vertical hole 11, when the vertical rod 14 completely enters the vertical hole 11, the inclined block 19 is extruded, the inclined block 19 can drive the pin rod 17 to move, at the moment, the pin rod 17 can move out of the inner side of the first pin hole 302, the other end of the pin rod 17 can enter the inner side of the second pin hole 13, when the pin rod 17 completely enters the inner side of the second pin hole 13, the first inclined plate 6 and the second inclined plate 12 are completely abutted, and simultaneously, the roller 16 rotationally connected with the inner sides of the first inclined plate 6 and the second inclined plate 12 are respectively abutted with the vertical rod 301 and the bent plate 4, so that the rigid connection between the vibrator main body 8 and the prefabricated template 1 is completed, the convenience is realized, and meanwhile, the installation position of the attached vibrator can be continuously controlled by the hydraulic telescopic rod 201;
before the attached vibrator is started, the power wire on the attached vibrator is required to be fixed on the first power wire fixing clamping sleeve 2403 and the second power wire fixing clamping sleeve 2404, meanwhile, the placing plate 2402 is required to be arranged at the upper end of the vibrator main body 8 all the time, so that the problem that the power wire is worn out in the running process of the device can be prevented, meanwhile, the influence of the vibrator on the hydraulic telescopic rod 201 in the working process can be reduced through the rubber block 203 and the fixing column 204 which are arranged in the running process of the device, and the device has good practical value;
when the attached vibrator needs to be maintained, a worker directly controls the hydraulic telescopic rod 201 to move to the lowest position, and in the process: the first swash plate 6 is first contacted with the friction plate 303, at this time, the first swash plate 6 and the second swash plate 12 can be separated by limiting the first swash plate 6, and when the connecting plate 251 moves out of the lower end position of the bent plate 4, the positioning plate 255 pops up under the action of the return spring 256, and the moving plate 254 and the clamping block 22 are separated, at this time, the worker can directly take down the vibrator body 8 for maintenance.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this invention, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the invention, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present invention.
Claims (5)
1. The utility model provides a case roof beam prefabricated form is with inserted vibrator, includes first swash plate (6), vibrator main part (8) and second swash plate (12), its characterized in that: the utility model discloses a vibrator, including first swash plate (6), locating mechanism (3), bent plate (4) that locating mechanism (3) one side fixedly connected with is fore-and-aft symmetry setting, another survey of locating mechanism (3) and prefabricated template (1) fixedly connected with square (5), slide hole (10) have been seted up to first swash plate (6) inboard, vertical hole (11) have been seted up to the bottom of slide hole (10) have been seted up to first swash plate (6), recess (9) have been seted up to slide hole (10) rear side have been seted up to first swash plate (6), slide hole (10) inboard sliding connection has pin (17), pin (17) rear side fixedly connected with spring plate (20), spring plate (20) right side fixedly connected with extension spring (21), through square groove (18) fixedly connected with sloping block (19) in the middle of pin (17), inclined plane and second swash plate (12) have been set up to incline and have been set up in first swash plate (6) and laminate each other, second swash plate (12) are close to first side (12) are connected with second montant (12) through second side (12), the utility model discloses a sliding plate structure, including recess (9), slide hole (10) and vertical hole (11), spring plate (20) sliding connection is the setting of intercommunication in recess (9), and telescopic spring (21) fixed connection is inboard in recess (9), vertical hole (11) and montant (14) set up on same vertical face, montant (14) top is sharp-pointed setting, second swash plate (12) bottom fixedly connected with fixture block (22), draw-in groove (23) have all been seted up to fixture block (22) both ends inboard around, second swash plate (12) are connected through fixture block (22) and cardboard mechanism (205), cardboard mechanism (205) include connecting plate (251), connecting hole (252) and perforation (253) have been seted up to connecting plate (251) inboard, perforation (253) inboard fixedly connected with fixed block (257), fixed block (257) are through reset spring (256) and movable plate (254) fixed connection, movable plate (254) keep away from one end fixedly connected with locating plate (255) of connecting hole (252), movable plate (254) are equipped with one end (254) and are connected with fixed plate (253), the locating plate (255) is far away from the setting that connecting plate (251) central point one end is the cambered surface, cardboard mechanism (205) lower extreme is equipped with elevating system (2), montant (14) lead to the fact the extrusion to sloping block (19) when getting into perpendicular hole (11) completely.
2. An attached vibrator for a precast box girder formwork as claimed in claim 1, wherein: the utility model discloses a locating mechanism, including locating mechanism (3), first swash plate (6), riser (301) one end inboard has been seted up, second swash plate (12) one side that is close to bent plate (4) has been seted up running roller groove (15), running roller groove (15) inboard rotates and is connected with running roller (16), first swash plate (6) are hugged closely through running roller (16) and locating mechanism (3), locating mechanism (3) include riser (301), first pinhole (302) have been seted up to riser (301) one end inboard, riser (301) right side lower extreme fixedly connected with friction plate (303).
3. An attached vibrator for a precast box girder formwork as claimed in claim 1, wherein: the utility model discloses a power cord positioning mechanism, including bent plate (4), fixed cutting ferrule (2404) is fixed on the side of fixed cutting ferrule (2403), fixed cutting ferrule (2404) is fixed on the side of fixed cutting ferrule (2404), fixed cutting ferrule (2403) is fixed on the side of fixed cutting ferrule (2404), fixed cutting ferrule (2404) is fixed on the side of fixed cutting ferrule (2404), fixed cutting ferrule (2403) is fixed on the side of fixed cutting ferrule (2404).
4. An attached vibrator for a precast box girder formwork as claimed in claim 1, wherein: the two ends of the pin rod (17) are cambered surfaces, and the vertical sections of the pin rod (17), the first pin hole (302) and the second pin hole (13) are equal in size.
5. An attached vibrator for a precast box girder formwork as claimed in claim 1, wherein: elevating system (2) are including hydraulic telescoping rod (201), six arris holes (202) have been seted up to hydraulic telescoping rod (201) top inboard, six arris holes (202) inboard fixedly connected with rubber piece (203), rubber piece (203) inboard fixedly connected with fixed column (204), fixed column (204) upper end and connecting plate (251) fixed connection, and fixed column (204) and connecting plate (251) are 90 setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311620853.0A CN117301255B (en) | 2023-11-30 | 2023-11-30 | Attached vibrator for box girder prefabricated formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311620853.0A CN117301255B (en) | 2023-11-30 | 2023-11-30 | Attached vibrator for box girder prefabricated formwork |
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| Publication Number | Publication Date |
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| CN117301255A CN117301255A (en) | 2023-12-29 |
| CN117301255B true CN117301255B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311620853.0A Active CN117301255B (en) | 2023-11-30 | 2023-11-30 | Attached vibrator for box girder prefabricated formwork |
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