CN216640975U - Concrete beam joint treatment device used in building engineering construction - Google Patents
Concrete beam joint treatment device used in building engineering construction Download PDFInfo
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- CN216640975U CN216640975U CN202123010779.XU CN202123010779U CN216640975U CN 216640975 U CN216640975 U CN 216640975U CN 202123010779 U CN202123010779 U CN 202123010779U CN 216640975 U CN216640975 U CN 216640975U
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Abstract
The utility model discloses a concrete beam seam processing device used in building engineering construction, which comprises a mounting plate, wherein the outer wall of the bottom of the mounting plate is provided with a mounting frame, the outer wall of the top of the mounting frame is provided with a lifting mechanism, the outer wall of the top of the mounting plate is fixedly provided with a spiral extruder, the outer wall of the top of the spiral extruder is provided with a feeding pipe, the outer wall of one side of the spiral extruder is provided with a material guide frame, the outer wall of the bottom of the material guide frame is provided with a blanking frame, the blanking frame penetrates through the outer wall of the top of the mounting plate, the outer walls of two sides of the blanking frame are respectively provided with a guide chute, and the inner wall of the guide chute is connected with a blanking shielding block in a sliding manner. According to the utility model, the sliding frame, the blanking stopping block and the guide rotary disc are arranged, after the guide rotary disc and the blanking stopping block extend into the joint, the blanking stopping block can guide the filler sprayed out of the blanking frame, so that the filler can be uniformly filled into the joint, and meanwhile, the blanking stopping block can slide on the inner wall of the joint, so that a certain guide is provided for the movement of the joint treatment device.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to a concrete beam joint treatment device used in constructional engineering construction.
Background
When the joint between concrete beams is embedded and filled, the flexible filler is embedded and filled by using an extruder instead of manpower in some projects, and the extruder directly extrudes and molds the flexible filler at the joint seam so as to realize compact embedding and filling. The extruder moves by means of extrusion counter force, and the joint type supporting wheels are arranged to adapt to seams with different surface shapes.
Through search, chinese patent application No. CN03266644.6 discloses a flexible filler extruder, which comprises a power machine connected with an extrusion screw in a filler chamber after being decelerated, the filler chamber is provided with a feed inlet at a proper position, and the flexible filler extruder is characterized in that: the inner cavity of a forming inner die is communicated with the filling chamber, and the outlet of the forming inner die is provided with a porous plate; the forming inner die is matched with a forming outer die in structure, and the extruder further comprises a traveling mechanism arranged on two sides of the power machine, but the technical scheme does not have a corresponding mechanism capable of guiding the moving direction of the seam processing equipment, so that the seam processing device is easy to deviate from a seam area during moving, and therefore, the concrete beam seam processing device for building engineering construction is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a concrete beam joint processing device used in constructional engineering construction, so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a concrete beam seam processing device used in construction engineering construction comprises a mounting plate, wherein the outer wall of the bottom of the mounting plate is provided with a mounting frame, the outer wall of the top of the mounting frame is provided with a lifting mechanism, the outer wall of the top of the mounting plate is fixed with a spiral extruder, the outer wall of the top of the spiral extruder is provided with a feeding pipe, the outer wall of one side of the spiral extruder is provided with a material guide frame, the outer wall of the bottom of the material guide frame is provided with a blanking frame, the blanking frame penetrates through the outer wall of the top of the mounting plate, the outer walls of two sides of the blanking frame are respectively provided with a guide chute, one side of the guide chute is provided with a sliding frame, the inner wall of the guide chute is connected with a blanking block in a sliding manner, the outer wall of one side of the blanking frame is fixed with a fixing block, the outer wall of one side of the fixing block is fixed on the outer wall of one side of the spring, the outer wall of the bottom of the mounting frame is rotatably connected with a plurality of rollers, the outer wall of one side of the roller is rotatably connected with a second rotating column, the outer wall of the bottom of the mounting plate is fixedly provided with an elastic telescopic rod, the outer wall of the bottom of the elastic telescopic rod is rotatably connected with a first rotating column, the outer wall of the first rotating column and the outer wall of the second rotating column are sleeved with a transmission belt, the outer wall of the first rotating column is rotatably connected with a guide rotary table, and the outer wall of the guide rotary table is fixedly provided with a plurality of cleaning brushes.
Preferably, the lifting mechanism comprises an air bag and a connecting air valve, the top outer wall of the air bag is fixed on the bottom outer wall of the mounting plate, the bottom outer wall of the air bag is arranged on the top outer wall of the mounting frame, and the connecting air valve is fixed on the outer wall of one side of the mounting plate.
Preferably, the outer wall of the top of the mounting frame is fixed with a plurality of guide posts, the outer wall of the top of the mounting frame is provided with a plurality of circular through holes, and the guide posts are slidably connected to the inner walls of the circular through holes.
Preferably, the outer wall of the top of the mounting plate is fixed with a push handle, and the outer wall of one side of the mounting frame is fixed with a graduated scale.
Preferably, a plurality of inserting plates are arranged on the outer wall of the blanking shielding block.
Preferably, the outer wall of the top of the mounting plate is fixed with a protective frame, the outer wall of one side of the protective frame is fixed on the outer wall of one side of the guide frame, and the outer wall of one side of the protective frame is provided with a warning lamp.
Preferably, a plurality of solar cell panels are fixed on the outer wall of the top of the protection frame, and a storage battery is fixed on the inner wall of the top of the protection frame.
Preferably, an internal thread sleeve is fixed on the outer wall of one side of the mounting frame, an external thread rod is arranged on the inner wall of the internal thread sleeve, a damping bearing is rotatably connected to the outer wall of the bottom of the external thread rod, and a trowelling plate is fixed on the outer wall of the bottom of the damping bearing.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model is provided with the sliding frame, the blanking shelter block and the guide rotary disc, after the guide rotary disc and the blanking shelter block extend into the joint, the blanking shelter block can guide the filler sprayed out of the blanking frame, so that the filler can be uniformly filled into the joint, meanwhile, the blanking shelter block can slide on the inner wall of the joint, certain guide is provided for the movement of the joint processing device, meanwhile, the spring can provide moving buffer for the blanking shelter block, the problem that the joint device cannot move smoothly because the blanking shelter block is clamped in the joint is avoided, when the joint device moves, the roller can be driven to rotate, and simultaneously the second rotary column is driven to rotate, the first rotary column is driven to rotate by the second rotary column through the transmission belt, so as to drive the guide rotary disc to rotate, when the guide rotary disc rotates in the joint, the guide effect on the movement of the joint device can be played when the guide rotary disc rotates in the joint, so as to guide the blanking shelter block together with the joint device, the stability of the seaming device when moving is improved, and the seaming device is prevented from deviating from a seaming area when moving.
2. According to the utility model, by arranging the elastic telescopic rod and the cleaning brush, the inner wall of the joint can be cleaned by the cleaning brush on the outer wall when the guide turntable rotates, so that the effect of filling the joint with the subsequent filler is improved, meanwhile, the elastic telescopic rod can buffer the guide turntable, the phenomenon that the whole joint device shakes when the guide turntable passes through the uneven position in the joint is avoided, and the stability of the joint device during movement is improved.
3. According to the utility model, by arranging the connecting air valve and the air bag, when the mounting plate needs to be lifted to avoid collision between equipment at the bottom of the mounting plate and the ground, a worker can connect the connecting air valve and air blowing equipment such as an external air pump and the like, then air is filled into the air bag through the connecting air valve, so that the air bag pushes the mounting plate to move upwards, when the height of the mounting plate needs to be lowered to enable the equipment at the bottom of the mounting plate to extend into a seam, the connecting air valve only needs to be opened, and after the air in the air bag is quickly discharged through the connecting air valve, the position of the mounting plate naturally and slowly falls.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic partial perspective view of the front end of the present invention;
FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of a bottom surface of the present invention;
FIG. 5 is a bottom view of the blanking frame of the present invention;
fig. 6 is a schematic structural view of a guide chute side door of the present invention.
In the figure: 1. mounting a plate; 2. a guide post; 3. an air bag; 4. a mounting frame; 5. a roller; 6. a push handle; 7. a material guiding frame; 8. a battery; 9. a spiral extruder; 10. a feed pipe; 11. a protective frame; 12. a damping bearing; 13. a warning light; 14. an externally threaded rod; 15. a graduated scale; 16. connecting an air valve; 17. a blanking frame; 18. a solar panel; 19. a first rotating column; 20. a guide turntable; 21. a second rotating cylinder; 22. a transmission belt; 23. blanking a baffle block; 24. a guide chute; 25. a fixed block; 26. a sliding frame; 27. inserting plates; 28. a spring; 29. an internally threaded sleeve; 30. an elastic telescopic rod; 31. and (6) leveling.
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 orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operate, 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 should be noted that, unless explicitly stated or limited otherwise, 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.
Referring to fig. 1-6, an embodiment of the present invention is shown: a concrete beam seam processing device used in construction engineering construction comprises a mounting plate 1, the outer wall of the bottom of the mounting plate 1 is connected with a mounting frame 4 in a sliding manner, the outer wall of the top of the mounting frame 4 is provided with a lifting mechanism, the outer wall of the top of the mounting plate 1 is fixed with a spiral extruder 9 through screws, the outer wall of the top of the spiral extruder 9 is fixed with a feeding pipe 10 through screws, the outer wall of one side of the spiral extruder 9 is fixed with a material guide frame 7 through screws, the outer wall of the bottom of the material guide frame 7 is connected with a blanking frame 17 through screws, the blanking frame 17 penetrates through the outer wall of the top of the mounting plate 1, the outer walls of the two sides of the blanking frame 17 are respectively provided with a guide chute 24, one side of each guide chute 24 is provided with a sliding frame 26, the inner wall of each guide chute 24 is connected with a blanking sheltering block 23 in a sliding manner, the outer wall of one side of the blanking frame 17 is welded with a fixing block 25, the outer wall of one side of the fixing block 25 is fixed with a spring 28 through screws, one side of the spring 28 is fixed on the outer wall of the blanking sheltering block 23 through screws, the outer wall of 4 bottoms of mounting bracket rotates through the bearing and is connected with a plurality of gyro wheels 5, 5 one side outer walls of gyro wheel rotate through the shaft coupling and be connected with the second and rotate post 21, 1 bottom outer wall of mounting panel passes through screw fixation elasticity telescopic link 30, the outer wall of elasticity telescopic link 30 bottom rotates through the bearing and is connected with first rotation post 19, first rotation post 19 rotates post 21 outer wall with the second and has cup jointed drive belt 22, 19 outer wall rotations of first rotation post are connected with direction carousel 20, 20 outer walls of direction carousel have a plurality of brushes through the screw fixation.
Further, after the guiding rotary disc 20 and the blanking block piece 23 extend into the seam, the blanking block piece 23 can guide the filler sprayed out from the blanking frame 17, so that the filler can be uniformly filled into the seam, meanwhile, the blanking block piece 23 can slide on the inner wall of the seam, a certain guide is provided for the movement of the seam processing device, meanwhile, the spring 28 can provide a buffer for the movement of the blanking block piece 23, the situation that the seam device cannot move smoothly due to the fact that the blanking block piece 23 is clamped in the seam is avoided, the roller 5 is driven to rotate when the seam device moves, the second rotating column 21 is driven to rotate at the same time, the first rotating column 19 is driven to rotate by the second rotating column 21 through the driving belt 22, so that the guiding rotary disc 20 is driven to rotate, when the guiding rotary disc 20 rotates in the seam, a good guiding effect is achieved when the seam device moves, so that the blanking block piece 23 is matched to guide the seam device together, the stability of the seaming device when moving is improved, and the seaming device is prevented from deviating from a seaming area when moving.
Further, the lifting mechanism comprises an air bag 3 and a connecting air valve 16, the outer wall of the top of the air bag 3 is fixed on the outer wall of the bottom of the mounting plate 1 through screws, the outer wall of the bottom of the air bag 3 is fixed on the outer wall of the top of the mounting frame 4 through screws, and the connecting air valve 16 is fixed on the outer wall of one side of the mounting plate 1 through screws; through setting up connecting pneumatic valve 16 and gasbag 3, when needs carry out the lifting to mounting panel 1 and avoid the equipment and the ground of mounting panel 1 bottom to collide, the staff can be connected connecting pneumatic valve 16 and blowing equipment such as outside air pump, then fill gas to gasbag 3 inside through connecting pneumatic valve 16, thereby let gasbag 3 promote mounting panel 1 rebound, when needs with mounting panel 1 highly drop let the equipment of mounting panel 1 bottom stretch into the seam inside, only need open connecting pneumatic valve 16, the inside gas of gasbag 3 is through connecting pneumatic valve 16 quick discharge back, the position of mounting panel 1 can slowly descend naturally.
Further, a plurality of guide posts 2 are fixed on the outer wall of the top of the mounting frame 4 through screws, a plurality of circular through holes are formed in the outer wall of the top of the mounting plate 1, and the guide posts 2 are connected to the inner walls of the circular through holes in a sliding mode; through setting up guide post 2, mounting panel 1 when reciprocating through the lifting mechanism, guide post 2 can carry out effectual spacing and direction to mounting panel 1, avoids mounting panel 1 to drop from mounting bracket 4.
Further, a push handle 6 is fixed on the outer wall of the top of the mounting plate 1 through screws, and a scale 15 is fixed on the outer wall of one side of the mounting frame 4 through screws; push away 6 and scale 15 through the setting, the staff accessible pushes away 6 and promotes the seam device, and the height of present mounting panel 1 is known to accessible scale 15 simultaneously, avoids the too much equipment that leads to mounting panel 1 bottom that mounting panel 1 descends to collide with the bottom of seam.
Further, a plurality of inserting plates 27 are fixed on the outer wall of the blanking stopping block 23 through screws; through setting up picture peg 27, can let unloading block 23 can be quick insert the seam, simultaneously when the seam inner wall removes, when unloading block 23 one side outer wall runs into the protruding of seam department one side inner wall, unloading block 23 can slide these archs through the effect of picture peg 27 and spring 28, avoids unloading block 23 one side outer wall directly to collide with the arch of seam department inner wall, leads to the unable normal removal of seam device.
Further, a protective frame 11 is fixed on the outer wall of the top of the mounting plate 1 through screws, the outer wall of one side of the protective frame 11 is fixed on the outer wall of one side of the guide frame 7 through screws, and a warning lamp 13 is fixed on the outer wall of one side of the protective frame 11 through screws; through setting up protection frame 11, protection frame 11 can shelter from and protect the equipment of 1 top outer wall of mounting panel, and the staff can open warning light 13 night.
Further, a plurality of solar panels 18 are fixed on the outer wall of the top of the protection frame 11 through screws, and a storage battery 8 is fixed on the inner wall of the top of the protection frame 11 through screws; through setting up solar cell panel 18 and battery 8, the seam device often can work under open-air condition, and the solar cell panel 18 of protection frame 11 top outer wall can effectual absorption solar energy this moment to convert solar energy into the electric energy, store these electric energy in the inside joint device that supplies of battery 8 and use.
Further, an internal thread sleeve 29 is fixed on the outer wall of one side of the mounting frame 4 through a screw, an external thread rod 14 is connected on the inner wall of the internal thread sleeve 29 through a screw, a damping bearing 12 is rotatably connected on the outer wall of the bottom of the external thread rod 14, and a troweling plate 31 is fixed on the outer wall of the bottom of the damping bearing 12; by arranging the troweling plate 31, the troweling plate 31 can trowel the filler overflowing from the joint, and meanwhile, a worker can adjust the height of the troweling plate 31 by rotating the external threaded rod 14. When the utility model works, the troweling plate 31 can trowel filler overflowing from the joint, and meanwhile, a worker can adjust the height of the troweling plate 31 by rotating the external threaded rod 14.
The working principle is as follows: before the device is used, a user firstly detects the device, confirms that the device is used after no problem exists, connects the spiral extruder 9 with an external storage mechanism through the feeding pipe 10, then pushes the seam processing device to move to a working position, then adjusts the height of the mounting plate 1 through the lifting device, enables a structure arranged at the bottom of the mounting plate 1 to extend into a seam, then controls the spiral extruder 9 to start, the spiral extruder 9 extrudes flexible filler entering the interior of the spiral extruder 9 through the feeding pipe 10 into the guide frame 7 through extrusion spiral, then sprays the filler into the interior of the seam from the blanking frame 17 through the guide of the guide frame 7, fills the seam, after the guide turntable 20 and the blanking shielding block 23 extend into the interior of the seam, the blanking shielding block 23 can guide the filler sprayed out from the blanking frame 17, enables the filler to be uniformly filled into the interior of the seam, and simultaneously enables the blanking block 23 to slide on the inner wall of the seam, the movement of the seam processing device is guided to a certain extent, meanwhile, the spring 28 can provide moving buffering for the blanking blocking piece 23, the situation that the seam device cannot move smoothly due to the fact that the blanking blocking piece 23 is clamped inside a seam is avoided, when the seam device moves, the roller 5 can be driven to rotate, the second rotating column 21 is driven to rotate at the same time, the second rotating column 21 drives the first rotating column 19 to rotate through the driving belt 22, so that the guide rotating disc 20 is driven to rotate, when the guide rotating disc 20 rotates inside the seam, the seam device can be well guided when moving, so that the blanking blocking piece 23 is matched to guide the seam device together, the stability of the seam device when moving is improved, the seam device is prevented from deviating from a seam area when moving, and when the guide rotating disc 20 rotates, the inner wall of the seam can be cleaned through the cleaning brush on the outer wall, so that the seam filling effect is improved, meanwhile, the flexible telescopic rod 30 can buffer the guide turntable 20.
When the mounting plate 1 needs to be lifted to avoid collision between equipment at the bottom of the mounting plate 1 and the ground, a worker can connect the connecting air valve 16 with air blowing equipment such as an external air pump and the like, then the air bag 3 is inflated with air through the connecting air valve 16, so that the air bag 3 pushes the mounting plate 1 to move upwards, when the height of the mounting plate 1 needs to be lowered to enable the equipment at the bottom of the mounting plate 1 to extend into a seam, the connecting air valve 16 is only needed to be opened, after the air in the air bag 3 is rapidly exhausted through the connecting air valve 16, the position of the mounting plate 1 naturally and slowly descends, when the mounting plate 1 moves up and down through the lifting mechanism, the guide posts 2 can effectively limit and guide the mounting plate 1, the worker can push the seam device through the push handles 6, meanwhile, the height of the current mounting plate 1 can be known through the scales 15, and by arranging the scale 27, can let the unloading hide the seam of inserting that dog 23 can be quick, seam device often can work under open-air condition, and the solar cell panel 18 of protection frame 11 top outer wall can effectual absorption solar energy this moment to convert solar energy into the electric energy, store these electric energies in the inside seam device that supplies of battery 8 and use.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a concrete beam seam processing apparatus for among building engineering construction, includes mounting panel (1), its characterized in that: the outer wall of the bottom of the mounting plate (1) is provided with a mounting frame (4), the outer wall of the top of the mounting frame (4) is provided with a lifting mechanism, the outer wall of the top of the mounting plate (1) is fixed with a spiral extruding machine (9), the outer wall of the top of the spiral extruding machine (9) is provided with an inlet pipe (10), the outer wall of one side of the spiral extruding machine (9) is provided with a guide chute (7), the outer wall of the bottom of the guide chute (7) is provided with a blanking frame (17), the blanking frame (17) penetrates through the outer wall of the top of the mounting plate (1), guide chutes (24) are respectively arranged on the outer walls of two sides of the blanking frame (17), one sides of the guide chutes (24) are provided with sliding frames (26), the inner wall of the guide chutes (24) is slidably connected with blanking shielding blocks (23), the outer wall of one side of the blanking frame (17) is fixed with a fixing block (25), and springs (28) are fixed on the outer wall of one side of the fixing block (25), on spring (28) one side outer wall was fixed in one side outer wall that the unloading sheltered from dog (23), mounting bracket (4) bottom outer wall rotated and is connected with a plurality of gyro wheels (5), gyro wheel (5) one side outer wall rotates and is connected with second rotation post (21), and mounting panel (1) bottom outer wall is fixed with elasticity telescopic link (30), elasticity telescopic link (30) bottom outer wall rotates and is connected with first rotation post (19), first rotation post (19) and second rotation post (21) outer wall have cup jointed drive belt (22), first rotation post (19) outer wall rotates and is connected with direction carousel (20), direction carousel (20) outer wall is fixed with a plurality of brushes.
2. The concrete beam joint treatment device used in the construction of the constructional engineering as claimed in claim 1, characterized in that: the lifting mechanism comprises an air bag (3) and a connecting air valve (16), wherein the top outer wall of the air bag (3) is fixed on the bottom outer wall of the mounting plate (1), the bottom outer wall of the air bag (3) is arranged on the top outer wall of the mounting frame (4), and the connecting air valve (16) is fixed on the outer wall of one side of the mounting plate (1).
3. The concrete beam joint treatment device used in the construction of the constructional engineering as claimed in claim 1, characterized in that: mounting bracket (4) top outer wall is fixed with a plurality of guide posts (2), mounting panel (1) top outer wall is opened has a plurality of circular through-holes, guide post (2) sliding connection on the inner wall of circular through-hole.
4. The concrete beam joint treatment device used in the construction of the building engineering according to claim 1, wherein: the outer wall of the top of the mounting plate (1) is fixed with a push handle (6), and the outer wall of one side of the mounting frame (4) is fixed with a graduated scale (15).
5. The concrete beam joint treatment device used in the construction of the building engineering according to claim 1, wherein: the outer wall of the blanking baffle block (23) is provided with a plurality of inserting plates (27).
6. The concrete beam joint treatment device used in the construction of the constructional engineering as claimed in claim 1, characterized in that: the outer wall of the top of the mounting plate (1) is fixed with a protective frame (11), one side of the outer wall of the protective frame (11) is fixed on one side of the outer wall of the guide frame (7), and one side of the outer wall of the protective frame (11) is provided with a warning lamp (13).
7. The concrete beam joint treatment device used in the construction of the building engineering according to the claim 6, characterized in that: a plurality of solar cell panels (18) are fixed on the outer wall of the top of the protection frame (11), and a storage battery (8) is fixed on the inner wall of the top of the protection frame (11).
8. The concrete beam joint treatment device used in the construction of the constructional engineering as claimed in claim 1, characterized in that: an internal thread sleeve (29) is fixed on the outer wall of one side of the mounting frame (4), an external thread rod (14) is arranged on the inner wall of the internal thread sleeve (29), a damping bearing (12) is rotatably connected to the outer wall of the bottom of the external thread rod (14), and a troweling plate (31) is fixed on the outer wall of the bottom of the damping bearing (12).
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CN202123010779.XU CN216640975U (en) | 2021-12-02 | 2021-12-02 | Concrete beam joint treatment device used in building engineering construction |
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CN202123010779.XU CN216640975U (en) | 2021-12-02 | 2021-12-02 | Concrete beam joint treatment device used in building engineering construction |
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