A device for smoothing and roughening the surface of a prefabricated box beam

Abstract

The present invention relates to the technical field of bridge prefabricated beam construction, and specifically discloses a prefabricated box beam surface smoothing and roughening device, comprising: a switching member, a driving member and a smoothing member, wherein the switching member and the driving member are both connected to a transverse frame, four smoothing members are provided, and the driving member can drive the lowest smoothing member to rotate, the switching member comprises a rotating part, a guide sleeve and a supporting part, the rotating part is rotatably connected to the transverse frame, four guide sleeves are provided, and the four guide sleeves are all connected to the rotating part, four smoothing members are respectively provided on four guide sleeves, and the smoothing members are limitedly supported on the guide sleeves by the supporting part, the rotating part can drive the four smoothing members to rotate, so that the four smoothing members are connected to the driving member in sequence for use; the prefabricated box beam surface smoothing and roughening device of the present invention can avoid the problem of accelerated wear of the smoothing blade on a single smoothing member due to long-term use in hot weather, thereby extending the service life of the smoothing blade.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated bridge beam construction, and in particular to a device for smoothing and roughening the beam surface of a prefabricated box beam. Background Art

[0002] Prefabricated box girder is a common structural form in bridge engineering. It has the characteristics of hollow interior and flanges on both sides of the upper part. The prefabrication of box girder is vertical prefabrication on a special formwork made on site. First, the processed steel skeleton is tied on the formwork, and a corrugated pipe for forming the prestressed tendon channel is set. Then the special steel formwork of the beam body is installed, concrete is poured and cured. After the concrete reaches a certain strength, the side formwork is removed and the curing is continued. When the concrete strength reaches the design requirements, the prestressed cable is threaded, and the prestressed tendons are tensioned and anchored in sequence, and then grouting and anchor sealing are carried out to complete the prefabrication of the beam body. The finishing and roughening of the beam surface of the prefabricated box girder is an important part of bridge construction, which aims to improve the bonding performance of concrete and the overall stability of the structure. In order to improve efficiency and quality, a finishing and roughening device will be used for automatic finishing and roughening. The finishing and roughening device usually includes a frame, a finishing mechanism and a roughening mechanism, as well as a translation mechanism for movement, which can realize automatic finishing and roughening of the beam surface.

[0003] A Chinese patent document with announcement number CN214490995U discloses a device for smoothing and roughening the surface of a prefabricated box girder, comprising a frame, on which a smoothing mechanism and a roughening mechanism are provided. The smoothing mechanism adopts a lifting design, and the roughening mechanism adopts a tensioning design. When the roughening mechanism is pulled up, the smoothing mechanism can smooth the surface of the beam by descending to contact the beam surface. After the smoothing mechanism is raised, the roughening mechanism can roughen the surface of the beam by opening to contact the beam surface. The frame is also provided with a first translation mechanism, which includes fixed plates arranged at both ends of the frame, on which walking wheels and a walking motor are arranged. The walking motor drives the walking wheels to travel along the length direction of the box girder surface through a chain, so as to realize automatic smoothing or roughening of the beam surface, and replace manpower for smoothing and roughening operations, thereby greatly reducing labor costs and improving production efficiency. Moreover, the operation process is standardized and controllable, which is conducive to improving production quality.

[0004] However, the above patent document still has the following shortcomings: when the surface of the prefabricated box girder is smoothed in hot weather, the friction between the smoothing blade and the concrete surface will generate more heat, which will accelerate the wear of the smoothing blade and shorten its service life after long-term use. Summary of the invention

[0005] The present invention provides a device for smoothing and roughening the surface of a prefabricated box girder, aiming to solve the problem in the related art that when smoothing the surface of a prefabricated box girder in hot weather, the friction between a smoothing blade and a concrete surface will generate more heat, which will accelerate the wear of the smoothing blade and shorten its service life after long-term use.

[0006] The device for smoothing and roughening the surface of a prefabricated box girder of the present invention comprises a walking mechanism, a moving frame, a roughening mechanism and a transverse frame, and also comprises a switching member, a driving member and a smoothing member. The switching member and the driving member are both connected to the transverse frame. There are four smoothing members, and the driving member can drive the lowest smoothing member to rotate. The switching member comprises a rotating part, a guide sleeve and a supporting part. The rotating part is rotatably connected to the transverse frame. There are four guide sleeves, and the four guide sleeves are all connected to the rotating part. The supporting part is movably connected in the guide sleeve. The four smoothing members are respectively arranged on the four guide sleeves, and the supporting part on the guide sleeve limits the smoothing member on the guide sleeve. The rotating part can drive the four smoothing members to rotate, so that the four smoothing members are connected to the driving member in sequence for use.

[0007] Beneficial effect: Through the switching part, the four trowel parts are connected to the driving part in sequence for use, so as to avoid the problem of accelerated wear of the trowel blade due to long-term use of the trowel blade on a single trowel part in hot weather, thereby extending the service life of the trowel blade.

[0008] Preferably, a guide hole and an installation cavity are provided in the guide sleeve, the guide hole is stepped at one end facing the axis of the rotating part, the installation cavity is connected to the guide hole, the support part is inserted in the installation cavity, the support part can extend into the guide hole, and provide limiting support for the polishing part.

[0009] Preferably, the trowel member includes a mounting frame, a trowel blade and a limiting ring, the mounting frame is inserted into the guide hole and passes through the guide hole, the trowel blade is connected to the mounting frame, the limiting ring is connected to the mounting frame, and the limiting ring is inserted into the guide hole. The effect is that the limiting ring can be supported by the support portion and the guide hole, so that the mounting frame can be rotatably connected to the guide sleeve.

[0010] Preferably, the transverse frame includes a lead screw and a moving frame, the lead screw is rotatably connected to the moving frame, the moving frame is placed on the top of the moving frame, the lead screw is threadedly connected to the moving frame, the moving frame includes a mounting frame and a lifting frame, the lifting frame is slidably connected to the bottom of the mounting frame, the switching member is connected to the lifting frame, and the driving member is connected to the mounting frame. The effect is that the lead screw can drive the moving frame to move forward and backward, so that the trowel member can evenly trowel the surface of the prefabricated box beam.

[0011] Preferably, the driving member comprises a telescopic part, a connecting frame, an elastic part and a driving source 4, the telescopic part is connected to the installation frame, the connecting frame is connected to the telescopic part, the elastic part is connected between the connecting frame and the lifting frame, and the driving source 4 is connected to the connecting frame. The effect is that the polishing member is driven to rotate by the driving source 4, so as to polish the surface of the prefabricated box beam.

[0012] Preferably, a connecting member is further included, the connecting member includes a connecting sleeve, a one-way bearing, a plug-in portion and a driving portion, the connecting sleeve is connected to the mounting frame through the one-way bearing, a connecting cavity is provided on the connecting sleeve, the plug-in portion is connected to the driving source 4, and the driving portion is connected to the plug-in portion. The effect is that the one-way bearing can make the connecting sleeve rotate clockwise without driving the mounting frame to rotate, and the connecting sleeve can drive the mounting frame to rotate counterclockwise.

[0013] Preferably, a first magnetic block is connected to the connection cavity of the connection sleeve, and a second magnetic block is connected to the plug-in portion. The effect is that after the plug-in portion moves to the top of the connection sleeve, the plug-in portion rotates clockwise, and the first and second magnetic blocks can drive the connection sleeve to rotate clockwise, so that the plug-in portion and the driving portion are aligned with the connection cavity on the connection sleeve.

[0014] Preferably, an air pump is connected to the rotating part, a connecting pipe is connected between the air pump and the guide sleeve, and the connecting pipe is communicated with the installation cavity.

[0015] The beneficial effects of the present invention are:

[0016] 1. Through the switching parts, the four trowel parts are connected to the driving parts in sequence to avoid the problem of accelerated wear of the trowel blade due to long-term use of the trowel blade on a single trowel part in hot weather, thereby extending the service life of the trowel blade.

[0017] 2. After the plug-in part moves to the top of the connecting sleeve, the plug-in part rotates clockwise, and the plug-in part can drive the connecting sleeve to rotate clockwise through magnetic blocks 1 and 2, so that the plug-in part and the driving part are aligned with the connecting cavity on the connecting sleeve, so as to facilitate the alignment and connection of the driving part with the polishing part below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the napping mechanism of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the transverse frame of the present invention.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the transverse moving frame and the trowel mechanism of the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the switching member of the present invention.

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the moving frame of the present invention.

[0024] Figure 7It is a schematic diagram of the cross-sectional structure of the switching member of the present invention.

[0025] Figure 8 It is a structural schematic diagram of the trowel mechanism of the present invention.

[0026] Fig. 9 Detailed description of the invention

[0027] Fig.10 It is an exploded cross-sectional view of the connecting piece of the present invention.

[0028] Reference numerals:

[0029] 1. Mobile frame; 2. Roughening mechanism; 21. Rotating frame; 22. Roughening blade; 23. Driving source 1; 24. Transmission wheel; 25. Transmission belt; 3. Transverse frame; 31. Lead screw; 32. Driving source 2; 33. Mobile frame; 331. Installation frame; 3311. Folding edge; 332. Lifting frame; 34. Connecting part; 4. Polishing mechanism; 41. Switching member; 411. Driving source 3; 412. Rotating part; 413. Guide sleeve; 4131. Guide hole; 4132. Installation cavity; 4 14. Air pump; 415. Support part; 416. Connecting pipe; 417. Solenoid valve; 42. Driving member; 421. Telescopic part; 422. Connecting frame; 423. Elastic part; 424. Driving source four; 43. Smoothing member; 431. Mounting frame; 432. Smoothing blade; 433. Limiting ring; 44. Connecting member; 441. Connecting sleeve; 4411. Connecting cavity; 442. One-way bearing; 443. Plug-in part; 444. Magnetic block one; 445. Driving part; 446. Magnetic block two. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figures 1 to 10 As shown, the device for smoothing and roughening the surface of a prefabricated box girder of the present invention comprises a walking mechanism, a movable frame 1, a roughening mechanism 2, a transverse frame 3 and a smoothing mechanism 4. The walking mechanism, the roughening mechanism 2 and the transverse frame 3 are all connected to the movable frame 1. The walking mechanism can drive the movable frame 1 to move left and right (the walking mechanism is a prior art and will not be described in detail here). The roughening mechanism 2 can roughen the surface of the prefabricated box girder, the transverse frame 3 can move forward and backward, and the smoothing mechanism 4 is connected to the transverse frame 3 for smoothing the surface of the prefabricated box girder.

[0032] like Figure 1 and Figure 2As shown, the roughening mechanism 2 includes a rotating frame 21, a roughening blade 22, a driving source 23, a transmission wheel 24 and a transmission belt 25. The rotating frame 21 is set to two, and the two rotating frames 21 are respectively rotatably connected to the left and right sides of the mobile frame 1. The roughening blade 22 is set to two groups, and the two groups of roughening blades 22 are respectively connected to the two rotating frames 21, and the number of each group of roughening blades 22 is set to multiple. The driving source 23 is connected to the mobile frame 1, and the driving source 23 is a motor. The transmission wheel 24 is set to three, and the three transmission wheels 24 are respectively connected to the output shaft of the driving source 23 and the two rotating frames 21, and the three transmission wheels 24 are arranged in a triangle, and the transmission belt 25 is transmission-connected between the three transmission wheels 24.

[0033] When the mobile frame 1 moves to the right, the driving source 23 is started to drive the transmission belt 25 and the three transmission wheels 24 to make the two rotating frames 21 rotate in the same direction, so that the roughening blade 22 on the rotating frame 21 located on the left side of the mobile frame 1 is close to the prefabricated box beam surface, and the roughening blade 22 on the rotating frame 21 located on the right side of the mobile frame 1 is away from the prefabricated box beam surface. After the polishing mechanism 4 smoothes the prefabricated box beam surface, the roughening blade 22 on the rotating frame 21 located on the left side of the mobile frame 1 roughens the prefabricated box beam surface.

[0034] like Figure 1 and Figure 3 As shown, the transverse frame 3 includes a screw 31, a driving source 32, a moving frame 33 and a connecting part 34. The moving frames 33 are arranged in plurality, and two adjacent moving frames 33 are connected by the connecting part 34. The moving frame 33 is placed on the top of the moving frame 1, and the driving source 32 is connected to the front side of the moving frame 1. The driving source 32 is a motor. The screw 31 is connected to the output shaft of the driving source 32. The moving frame 33 located on the front side is threadedly connected to the screw 31, and the polishing mechanism 4 is connected in the moving frame 33.

[0035] The moving frame 33 includes a mounting frame 331 and a lifting frame 332 . Both sides of the top of the mounting frame 331 are provided with folded edges 3311 . The mounting frame 331 is placed on the top of the moving frame 1 through the folded edges 3311 . The lifting frame 332 is slidably connected to the bottom of the mounting frame 331 .

[0036] The second driving source 32 is started to drive the lead screw 31 to rotate, and the lead screw 31 can drive multiple moving frames 33 to move forward and backward, and the surface of the prefabricated box beam is evenly smoothed by the smoothing mechanism 4.

[0037] like Figure 1 , Figures 4 to 10As shown, the trowel mechanism 4 includes a switching member 41, a driving member 42, a trowel member 43 and a connecting member 44. The switching member 41 is connected to the transverse frame 3. Four trowel members 43 are provided. The four trowel members 43 are all connected to the switching member 41. The connecting member 44 is connected between the driving member 42 and the trowel member 43. The driving member 42 can drive the lowest trowel member 43 to rotate. The switching member 41 can drive the four trowel members 43 to move along a circular trajectory, thereby switching the four trowel members 43 in sequence to avoid the problem of accelerated wear of the trowel blade 432 due to long-term use of a single trowel member 43 in hot weather, thereby extending the service life of the trowel blade 432. At the same time, when a trowel member 43 is damaged, the trowel member 43 can be disassembled and replaced without stopping the machine, so as to improve the troweling and roughening efficiency of the prefabricated box girder surface.

[0038] Continue to refer Figure 1 , Figures 4 to 10 As shown, the switching member 41 includes a driving source 3 411, a rotating part 412, a guide sleeve 413, an air pump 414, a support part 415, a connecting pipe 416 and a solenoid valve 417. The driving source 3 411 is a motor with an output shaft facing right, the driving source 3 411 is connected to the inner left side of the lifting frame 332, the rotating part 412 is connected to the output shaft of the driving source 3 411, the guide sleeve 413 is provided in four, the four guide sleeves 413 are all connected to the rotating part 412, and the four guide sleeves 413 are arranged in a ring with equal distances, the air pump 414 is connected to the rotating part 412, and the guide sleeves 413 are arranged in a ring with equal distances. A guide hole 4131 and an installation cavity 4132 are provided in the sleeve 413. The end of the guide hole 4131 facing the axis of the rotating part 412 is stepped. The installation cavity 4132 is connected with the guide hole 4131. The support part 415 is inserted in the installation cavity 4132. There are four connecting pipes 416 and four solenoid valves 417. The four connecting pipes 416 are respectively connected between the air pump 414 and the four guide sleeves 413. The connecting pipe 416 is connected with the installation cavity 4132. The solenoid valve 417 is connected to the connecting pipe 416 for opening or closing the connecting pipe 416.

[0039] The four smoothing members 43 are inserted into the guide holes 4131 of the four guide sleeves 413 in sequence, and the air pump 414 is started to deliver gas to the installation cavities 4132 of the four guide sleeves 413 through the four connecting pipes 416 in sequence, so that the supporting part 415 extends into the guide hole 4131 and provides limited support for the smoothing member 43.

[0040] Continue to refer Figure 1 , Figures 4 to 10As shown, the trowel member 43 includes a mounting frame 431, a trowel blade 432 and a limiting ring 433. The mounting frame 431 is inserted into the guide hole 4131 of the guide sleeve 413 and passes through the guide hole 4131. The trowel blade 432 is provided in four numbers, and the four trowel blades 432 are all connected to the mounting frame 431. The limiting ring 433 is connected to the mounting frame 431, and the limiting ring 433 is inserted into the guide hole 4131. The limiting ring 433 can be limited and supported by the support portion 415 and the guide hole 4131, so that the mounting frame 431 is rotatably connected to the guide sleeve 413.

[0041] When installing the smoothing member 43, insert the mounting frame 431 into the guide hole 4131 of the guide sleeve 413, and penetrate the guide hole 4131, and insert the limiting ring 433 into the guide hole 4131, start the air pump 414, and deliver gas to the mounting cavity 4132 in the guide sleeve 413 through the connecting pipe 416, so that the supporting part 415 extends into the guide hole 4131, and limits the support of the mounting frame 431, thereby completing the installation of the smoothing member 43.

[0042] Continue to refer Figure 1 , Figures 4 to 10 As shown, the driving member 42 includes a telescopic part 421, a connecting frame 422, an elastic part 423 and a driving source four 424. The telescopic part 421 is connected to the inner right side of the mounting frame 331, the telescopic part 421 is an electric telescopic rod with the telescopic end facing downward, the connecting frame 422 is connected to the telescopic end of the telescopic part 421, the elastic part 423 is connected between the connecting frame 422 and the lifting frame 332, the elastic part 423 is a spring, and is used to pull the lifting frame 332 up and down, the driving source four 424 is connected to the connecting frame 422, the driving source four 424 is a motor with an output shaft facing downward, and the output shaft of the driving source four 424 is arranged corresponding to the polishing member 43 below.

[0043] Start the telescopic part 421 to drive the connecting frame 422 to move downward, and the connecting frame 422 drives the elastic part 423 and the driving source four 424 to move downward. When the elastic part 423 moves downward, it can drive the lifting frame 332 to move downward. After the lifting frame 332 has completely moved downward, it is blocked by the installation frame 331, and the lifting frame 332 no longer moves downward. At this time, the connecting frame 422 continues to move downward, the elastic part 423 is compressed, and the driving source four 424 continues to move downward until the driving source four 424 is connected to the lowest smoothing member 43 through the connecting member 44.

[0044] Continue to refer Figure 1 , Figures 4 to 10As shown, the connecting member 44 includes a connecting sleeve 441, a one-way bearing 442, a plug-in portion 443, a magnetic block 1 444, a driving portion 445 and a magnetic block 2 446. The connecting sleeve 441, the one-way bearing 442 and the magnetic block 1 444 are all provided in four numbers. The four connecting sleeves 441 are respectively connected to the four mounting frames 431 through the four one-way bearings 442. The one-way bearings 442 can make the connecting sleeve 441 rotate clockwise without driving the mounting frame 431 to rotate, and the connecting sleeve 441 rotates counterclockwise. It can drive the mounting frame 431 to rotate, the connecting sleeve 441 is coaxially arranged with the mounting frame 431, and a connecting cavity 4411 is arranged at one end of the connecting sleeve 441 facing the axis of the rotating part 412, the four magnetic blocks 444 are respectively connected to the connecting cavities 4411 of the four connecting sleeves 441, the plug-in part 443 is connected to the output shaft of the driving source four 424, the driving part 445 and the magnetic block 446 are both connected to the plug-in part 443, and the plug-in part 443 and the driving part 445 are matched with the connecting cavity 4411.

[0045] The telescopic part 421 is started to drive the driving source 424 downward, so that the plug-in part 443 moves to the top of the lowest connecting sleeve 441, and the driving source 424 is started to drive the plug-in part 443 to rotate slowly clockwise. When the second magnetic block 446 passes directly above the first magnetic block 444, the connecting sleeve 441 can be driven to rotate clockwise by the magnetic force of the second magnetic block 446 and the first magnetic block 444, so that the plug-in part 443 and the driving part 445 are aligned with the connecting cavity 4411 on the connecting sleeve 441, and then the driving source is closed. Four 424 is used to stop the clockwise rotation of the plug-in part 443 and the connecting sleeve 441. The telescopic part 421 is then started to drive the driving source four 424 to move downward, so that the plug-in part 443 and the driving part 445 are inserted into the connecting cavity 4411 on the connecting sleeve 441. Finally, the driving source four 424 is started to drive the plug-in part 443 and the driving part 445 to rotate counterclockwise, thereby driving the connecting sleeve 441 and the mounting frame 431 to rotate counterclockwise, and the surface of the prefabricated box girder is smoothed by the smoothing blade 432 on the mounting frame 431.

[0046] Working principle:

[0047] Insert the mounting frame 431 into the guide hole 4131 of the guide sleeve 413, and penetrate the guide hole 4131, and insert the limiting ring 433 into the guide hole 4131, start the air pump 414, and deliver gas to the mounting cavity 4132 in the guide sleeve 413 through the connecting pipe 416, so that the supporting part 415 extends into the guide hole 4131, and limits the support of the mounting frame 431, thereby completing the installation of the smoothing member 43.

[0048] The driving source 3 411 is started to drive the rotating part 412 to rotate three 90 degrees clockwise in sequence, and the installation of the other three smoothing members 43 is repeated.

[0049] Starting the telescopic part 421 drives the connecting frame 422 to move downward, and the connecting frame 422 drives the elastic part 423 and the driving source four 424 to move downward. When the elastic part 423 moves downward, it can drive the lifting frame 332 to move downward. After the lifting frame 332 has completely moved downward, it is blocked by the installation frame 331, and the lifting frame 332 no longer moves downward. At this time, the connecting frame 422 continues to move downward, the elastic part 423 is compressed, and the driving source four 424 continues to move downward until the plug-in part 443 moves to above the lowest connecting sleeve 441.

[0050] Start the driving source four 424 to drive the plug-in part 443 to rotate slowly clockwise. When the magnetic block two 446 passes directly above the magnetic block one 444, the magnetic force of the magnetic blocks two 446 and one 444 drives the connecting sleeve 441 to rotate clockwise, thereby aligning the plug-in part 443 and the driving part 445 with the connecting cavity 4411 on the connecting sleeve 441. Then close the driving source four 424 to stop the plug-in part 443 and the connecting sleeve 441 from rotating clockwise. Then start the telescopic part 421 to drive the driving source four 424 to move downward, so that the plug-in part 443 and the driving part 445 are inserted into the connecting cavity 4411 on the connecting sleeve 441, thereby completing the connection operation between the driving source four 424 and the polishing member 43 below.

[0051] Start the driving source 424 to drive the plug-in part 443 and the driving part 445 to rotate counterclockwise, thereby driving the connecting sleeve 441 and the mounting frame 431 to rotate counterclockwise, and the surface of the prefabricated box girder is smoothed by the smoothing blade 432 on the mounting frame 431.

[0052] Start the driving source 2 32 to drive the screw 31 to rotate, and drive the movable frame 33 to move forward and backward through the screw 31. At the same time, start the walking mechanism to drive the movable frame 1 to move right, and the roughening mechanism 2 on the left side of the movable frame 1 roughens the surface of the prefabricated box girder after smoothing.

[0053] After the trowel blade 432 has been used for a period of time, the walking mechanism and the driving source four 424 are stopped, thereby stopping the troweling operation on the surface of the prefabricated box girder, and the telescopic part 421 is started to drive the connecting frame 422, the elastic part 423 and the driving source four 424 to move upward, and after the elastic part 423 is reset, the lifting frame 332 is pulled to reset, and at the same time, the plug-in part 443 and the driving part 445 are separated from the connecting sleeve 441.

[0054] The driving source 3 411 is started to drive the rotating part 412 to rotate 90 degrees, and drive the four smearing members 43 to move along a circular track, so as to complete the switching operation of the lower smearing member 43 .

[0055] Repeat the connection operation between the driving source 424 and the finishing member 43 below, and continue to finish the finishing and roughening process on the surface of the prefabricated box girder.

[0056] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A device for smoothing and roughening the surface of a prefabricated box beam, comprising a walking mechanism, a moving frame (1), a roughening mechanism (2) and a transverse frame (3), characterized in that: The invention also comprises a switching member (41), a driving member (42) and a trowel member (43), wherein the switching member (41) and the driving member (42) are both connected to the transverse frame (3), the trowel members (43) are arranged in four numbers, the driving member (42) is capable of driving the bottom trowel member (43) to rotate, the switching member (41) comprises a rotating part (412), a guide sleeve (413) and a supporting part (415), the rotating part (412) is rotatably connected to the transverse frame (3), the guide sleeve (413) is arranged in four numbers, and the four The guide sleeves (413) are all connected to the rotating part (412), the support part (415) is movably connected in the guide sleeves (413), the four trowel members (43) are respectively arranged on the four guide sleeves (413), and the trowel members (43) are limitedly supported on the guide sleeves (413) by the support parts (415) on the guide sleeves (413), and the rotating part (412) can drive the four trowel members (43) to rotate, so that the four trowel members (43) are connected to the driving member (42) in sequence for use.

2. The device for smoothing and roughening the surface of a prefabricated box beam according to claim 1 is characterized in that: The guide sleeve (413) is provided with a guide hole (4131) and a mounting cavity (4132); one end of the guide hole (4131) facing the axis of the rotating portion (412) is stepped; the mounting cavity (4132) is connected to the guide hole (4131); the support portion (415) is inserted into the mounting cavity (4132); the support portion (415) can extend into the guide hole (4131) and provide position-limiting support for the smoothing member (43).

3. The device for smoothing and roughening the surface of a prefabricated box beam according to claim 2 is characterized in that: The trowel member (43) comprises a mounting frame (431), a trowel blade (432) and a limiting ring (433); the mounting frame (431) is inserted into the guide hole (4131) and passes through the guide hole (4131); the trowel blade (432) is connected to the mounting frame (431); the limiting ring (433) is connected to the mounting frame (431); and the limiting ring (433) is inserted into the guide hole (4131).

4. The device for smoothing and roughening the surface of a prefabricated box beam according to claim 1 is characterized in that: The transverse moving frame (3) comprises a lead screw (31) and a moving frame (33), the lead screw (31) is rotatably connected to the moving frame (1), the moving frame (33) is placed on the top of the moving frame (1), the lead screw (31) is threadedly connected to the moving frame (33), the moving frame (33) comprises a mounting frame (331) and a lifting frame (332), the lifting frame (332) is slidably connected to the bottom of the mounting frame (331), the switching member (41) is connected to the lifting frame (332), and the driving member (42) is connected to the mounting frame (331).

5. The device for smoothing and roughening the surface of a prefabricated box beam according to claim 1 is characterized in that: The driving member (42) comprises a telescopic portion (421), a connecting frame (422), an elastic portion (423) and a driving source four (424); the telescopic portion (421) is connected to the mounting frame (331); the connecting frame (422) is connected to the telescopic portion (421); the elastic portion (423) is connected between the connecting frame (422) and the lifting frame (332); and the driving source four (424) is connected to the connecting frame (422).

6. The device for smoothing and roughening the surface of a prefabricated box beam according to claim 3 is characterized in that: The device also includes a connecting member (44), the connecting member (44) including a connecting sleeve (441), a one-way bearing (442), a plug-in portion (443), and a driving portion (445); the connecting sleeve (441) is connected to the mounting frame (431) via the one-way bearing (442); a connecting cavity (4411) is provided on the connecting sleeve (441); the plug-in portion (443) is connected to a driving source four (424); and the driving portion (445) is connected to the plug-in portion (443).

7. The device for smoothing and roughening the surface of a prefabricated box beam according to claim 6 is characterized in that: A first magnetic block (444) is connected to the connection cavity (4411) of the connection sleeve (441), and a second magnetic block (446) is connected to the plug-in portion (443).

8. The device for smoothing and roughening the surface of a prefabricated box beam according to claim 2 is characterized in that: The rotating part (412) is connected to an air pump (414), a connecting pipe (416) is connected between the air pump (414) and the guide sleeve (413), and the connecting pipe (416) is in communication with the installation cavity (4132).

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