Concrete galling and film covering integrated tool

Abstract

The utility model discloses a concrete galling and film covering integrated tool, and belongs to the technical field of concrete construction equipment. The utility model solves the problems that the existing equipment can only carry out construction on galling and film covering procedures after concrete pouring, the mechanical unit is more complicated, and the operation difficulty is high. Comprising a support unit, a leveling plate, a connecting plate, a plurality of galling steel nails and a film covering unit, the support unit is movably connected to the leveling plate, the film covering unit is connected to the support unit, the connecting plate is movably connected to the lower surface of the side, close to the support unit, of the film covering unit, and the galling steel nails are fixedly installed on the connecting plate. The concrete surface finishing, galling and laminating machine solves the problem that equipment switching needs to be carried out among a plurality of working procedures in an original construction process, improves the concrete curing effect and the construction efficiency, and is simple in mechanical structure, capable of leveling independently, convenient to operate, wide in application range and suitable for popularization and application. The method is suitable for various engineering fields such as municipal road engineering and bridge engineering.

Description

Technical Field

[0001] The utility model relates to an integrated tool for concrete roughening and film covering, belonging to the technical field of concrete construction equipment. Background Art

[0002] In large-scale municipal bridge projects, the bridge is formed by in-situ casting of concrete using the support method. The bridge deck is wide, and the amount of work for surface finishing and roughening is large. The usual practice is that after the concrete surface is polished, when it is possible for people to stand on it, workers stand on the polished concrete surface to roughen it.

[0003] The laminated slab is a good structural form combining precast and cast-in-place concrete. In the Chinese utility model patent with the publication number CN210082048U, an integrated machine for roughening and film covering of laminated slabs is disclosed, which belongs to the technical field of laminated slab production equipment. It includes a mobile frame, a roughening unit and a film covering unit. The roughening unit is installed at the end of the mobile frame and consists of a number of roughening blades and a rotating shaft. The roughening blades are fixed on the rotating shaft. The film covering unit includes a film covering mechanism and a film rolling and smoothing mechanism. The film covering mechanism is arranged directly above the roughening unit, and the film rolling and smoothing mechanism is installed directly behind the film covering mechanism. The film covering mechanism consists of a torque motor and a film covering roller. The two ends of the rotating shaft of the film rolling and smoothing mechanism are fixedly installed on the mobile frame by bearing seats. Two reverse threads are arranged on the rotating shaft, and the reverse threads are divided from the middle to both ends so that the film is evenly wound on the film covering roller.

[0004] This device has the following defects: The existing equipment can only carry out the construction of roughening and film covering processes after concrete pouring, and does not have a polishing function. For the concrete after pouring, polishing is an essential process. Therefore, before the construction of the existing equipment, only other equipment can be used for polishing, which will lead to the problem of switching equipment between multiple processes in the construction process of the concrete after pouring. Furthermore, there are too many types of equipment on the production line, affecting the operating space. In addition, the existing equipment also has the problems of a relatively complex mechanical unit, high operation difficulty, and lack of flexibility. Content of the Utility Model

[0005] The utility model is to solve the above problems, and further provides an integrated tool for concrete roughening and film covering.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] An integrated tool for concrete roughening and film covering includes a support unit, a polishing plate, a connecting plate, a number of roughening steel nails and a film covering unit. The lower part of the support unit is movably connected to the polishing plate, the film covering unit is movably connected to the support unit, the connecting plate is movably connected to the lower surface of the film covering unit close to the support unit, and a number of roughening steel nails are fixedly installed on the connecting plate.

[0008] Further, the bracket unit includes an inverted U-shaped bracket, a rod base, and an attached guide wheel system. The lower end surface of the inverted U-shaped bracket is fixedly connected to the upper surface of the rod base. The attached guide wheel system includes a tripod, guide wheels, hooks, and bearings. The inner surfaces of the two sides of the inverted U-shaped bracket are respectively fixedly installed with tripods. One end of the tripod is rotatably connected to the lower part of the inverted U-shaped bracket through a bearing. A connecting rod is rotatably connected to the end of the tripod far from the bearing. Guide wheels are fixedly connected to both ends of the connecting rod close to the inverted U-shaped bracket. Hooks are fixedly installed on the inner side of the inverted U-shaped bracket. The connecting rod is folded inside the inverted U-shaped bracket through the hooks.

[0009] Further, the rod base and the light collecting plate are connected by a pin shaft, and a limiting spring is sleeved around the pin shaft. The top end of the limiting spring is fixedly connected to the rod base, and the bottom end of the limiting spring is fixedly connected to the light collecting plate.

[0010] Further, the film covering unit includes two adjusting rods and a movable support frame. The movable support frame includes two adjusting ends and a combined end. The two adjusting rods are both L-shaped and symmetrically distributed. The adjusting rods are provided with fourth through holes along the vertical direction, and the adjusting ends are provided with third through holes along the vertical direction. The third through holes and the fourth through holes are inserted through with a second positioning pin. The rod base is provided with a first through hole along the vertical direction, and a groove is formed on the side surface of the rod base close to the film covering unit. The combined end is provided with a second through hole along the vertical direction, and the combined end is movably inserted into the groove of the rod base. The second through hole and the first through hole are inserted through with a first positioning pin.

[0011] Further, the film covering unit further includes a rotating shaft. A plurality of sixth through holes are opened along the same straight line on the rotating shaft. A barrel-shaped film is inserted on the rotating shaft. First limiting pins are inserted into the sixth through holes on both sides of the film. The rotating shaft is movably inserted into one end of the adjusting rod far from the movable support frame, and second limiting pins are inserted into the sixth through holes on both sides of the adjusting rod.

[0012] Further, the hole pitch between adjacent two third through holes and adjacent two fourth through holes is both 2 cm.

[0013] Further, the first positioning pin and the second positioning pin have the same structure, including a first ball, a first spring, a first limiting rod, a positioning pin body, and a handle. The bottom of the positioning pin body is provided with a hole, and the hole diameter is the same as the maximum diameter of the first ball. The first spring is placed in the hole. One end of the first spring at the hole opening is connected to the first ball. When the first spring is not compressed, 1 / 2 of the first ball is located outside the hole. The upper part of the positioning pin body is horizontally fixedly connected with the first limiting rod, and the upper surface of the positioning pin body is connected with the handle.

[0014] Further, the first limiting pin and the second limiting pin have the same structure, including a second ball, a second spring, a second limiting rod, a limiting pin body, and a pull ring. The arrangement of the second ball, the second spring, and the second limiting rod of the first limiting pin is the same as the arrangement of the first ball, the first spring, and the first limiting rod of the first positioning pin. The upper surface of the limiting pin body is connected with the pull ring.

[0015] Furthermore, the tie rod device includes a first screw rod, a second screw rod and a sleeve. The first screw rod and the second screw rod have opposite spiral directions and are rotatably connected inside the sleeve. One end of the first screw rod away from the sleeve is connected to the lower surface of the movable support frame, and one end of the second screw rod away from the sleeve is connected to the side surface of the connecting plate close to the support unit.

[0016] Furthermore, when the tie rod device is stretched to the longest, the lower elevations of the finishing plate, the film covering unit and the studded nails are on the same horizontal line.

[0017] The utility model has the following effects compared with the prior art:

[0018] By arranging the finishing plate, the connecting plate, a plurality of studded nails and the film covering unit, the utility model can realize one-time forming of finishing, studding and film covering after concrete pouring, reduce the types of equipment on the production line, effectively solve the problem that equipment switching is required between multiple processes in the original construction process, and expand the operation space;

[0019] By setting the finishing plate and the film covering unit as detachable structures and setting the studded nails as adjustable angles, the utility model realizes flexible combination of the finishing, studding and film covering processes, can finish alone, can also carry out the finishing and film covering processes simultaneously, and can also realize the finishing, studding and film covering processes at one time, advancing the film covering time after concrete pouring, and greatly improving the concrete curing effect and construction efficiency;

[0020] The mechanical structures of the finishing plate, the connecting plate, a plurality of studded nails and the film covering unit in the utility model are simple, easy to operate and have a wide range of applications, and are applicable to various engineering fields such as municipal road engineering and bridge engineering. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 is an exploded structural diagram of the utility model;

[0023] Figure 3 is a side view of the utility model;

[0024] Figure 4 is an enlarged structural schematic diagram of the positioning pin assembly in the utility model;

[0025] Figure 5 is an enlarged structural schematic diagram of the limit pin assembly in the utility model;

[0026] Figure 6 is an enlarged structural schematic diagram of the tie rod device in the utility model;

[0027] Figure 7 This is a schematic enlarged view of the movable support frame in the present utility model.

[0028] In the figure: 1. Inverted U-shaped bracket; 2. Guide wheel; 3. Leg frame; 4. Bearing; 5. Hook; 6. Pin shaft; 7. Finishing plate; 8. Connecting rod; 9. Rod seat; 10. Texturing nail; 11. Connecting plate; 12. Tie rod device; 13. Adjusting rod; 14. Combined end; 15. Limiting pin body; 16. Movable support frame; 17. Positioning pin body; 18. First ball; 19. First spring; 20. First limiting rod; 21. Handle; 22. Pulling ring; 23. Rotating shaft; 24. Second limiting rod; 25. Second spring; 26. Second ball; 27. First positioning pin; 28. Second positioning pin; 29. First limiting pin; 30. Second limiting pin; 31. Sleeve; 32. First screw; 33. Second screw. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0030] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0031] A concrete texturing and film covering integrated tool includes a bracket unit, a finishing plate 7, a connecting plate 11, a plurality of texturing nails 10 and a film covering unit. The lower part of the bracket unit is movably connected to the finishing plate 7, the film covering unit is movably connected to the bracket unit, the connecting plate 11 is movably connected to the lower surface of the film covering unit close to the bracket unit, and a plurality of texturing nails 10 are fixedly installed on the connecting plate 11.

[0032] By setting the finishing plate, the connecting plate, a plurality of texturing nails and the film covering unit in the present utility model, it is possible to realize the primary forming of finishing, texturing and film covering after concrete pouring, effectively solving the conflict problem between texturing and film covering processes after concrete pouring; by setting the finishing plate and the film covering unit as detachable structures and setting the texturing nails as adjustable angles, the flexible combination of finishing, texturing and film covering processes is realized, and it is possible to finish alone, or to perform finishing and film covering processes simultaneously, or to realize finishing, texturing and film covering processes at one time. This not only advances the film covering time after concrete pouring, but also solves the problem that there is a need to switch equipment between multiple processes in the original construction process, greatly improving the concrete curing effect and construction efficiency; the mechanical structures of the finishing plate, the connecting plate, a plurality of texturing nails and the film covering unit are simple, easy to operate and have a wide range of applications, and are suitable for various engineering fields such as municipal road engineering and bridge engineering.

[0033] The bracket unit includes an inverted U-shaped bracket 1, a rod base 9, and an attached guide wheel system. The lower end surface of the inverted U-shaped bracket 1 is fixedly connected to the upper surface of the rod base 9. The attached guide wheel system includes a tripod 3, guide wheels 2, hooks 5, and bearings 4. The inner surface of the inverted U-shaped bracket 1 is fixedly installed with tripods 3 respectively. One end of the tripod 3 is rotatably connected to the lower part of the inverted U-shaped bracket 1 through a bearing 4. A connecting rod 8 is rotatably connected to the end of the tripod 3 far from the bearing 4. Guide wheels 2 are fixedly connected to both ends of the connecting rod 8 close to the inverted U-shaped bracket 1. Hooks 5 are fixedly installed on the inner side of the inverted U-shaped bracket 1. The connecting rod 8 is folded inside the inverted U-shaped bracket 1 through the hooks 5. Preferably, the guide wheels 2 are universal wheels, and the light-receiving plate 7 is an aluminum alloy plate. The light-receiving plate 7 realizes steering through the attached guide wheel system. When the light-receiving plate 7 needs to be steered, rotate the bearing 4 to separate the tripod 3 from the hook 5 until the guide wheels 2 contact the concrete surface. Using the guide wheels 2 as a fulcrum, pry the light-receiving plate 7 off the ground, and the steering of the light-receiving plate 7 can be realized through the guide wheels 2. When the light-receiving plate 7 does not need to be steered, rotate the bearing 4 until the tripod 3 enters the hook 5. At this time, the attached guide wheel system is in a folded state.

[0034] The rod base 9 and the light-receiving plate 7 are connected through a pin shaft 6. A limiting spring is sleeved around the pin shaft 6. The top end of the limiting spring is fixedly connected to the rod base 9, and the bottom end of the limiting spring is fixedly connected to the light-receiving plate 7. The pin shaft 6 provides a relative movement space for the rod base 9 and the light-receiving plate 7, and the support and limitation between the rod base 9 and the light-receiving plate 7 are realized through the limiting spring. Furthermore, when the light-receiving plate 7 moves along with the shape of the concrete surface, the angle of the light-receiving plate 7 can be adjusted immediately, making the light-receiving process smoother and the light-receiving quality higher.

[0035] The film covering unit includes two adjusting rods 13 and a movable support frame 16. The movable support frame 16 includes two adjusting ends and a combined end 14. Both adjusting rods 13 are L-shaped and symmetrically distributed. The adjusting rods 13 are provided with fourth through holes along the vertical direction, and the adjusting ends are provided with third through holes along the vertical direction. The third through holes and the fourth through holes are inserted through a second positioning pin 28. The rod base 9 is provided with a first through hole along the vertical direction, and the side surface of the rod base 9 close to the film covering unit is grooved. The combined end 14 is provided with a second through hole along the vertical direction. The combined end 14 is movably inserted into the groove of the rod base 9, and the second through hole and the first through hole are inserted through a first positioning pin 27. Preferably, the adjusting rods 13 and the adjusting ends of the movable support frame 16 are hollow structures. Through the cooperation of the third through holes, the fourth through holes, and the second positioning pin, the lengths of the movable support frame and the connecting rod can be flexibly adjusted according to different film covering widths. Through the cooperation of the first through hole, the second through hole, and the first positioning pin 27, the connection between the light-receiving plate and the film covering unit is realized, and thus the functions of light-receiving and film covering are achieved simultaneously.

[0036] The film covering unit further includes a rotating shaft 23. A plurality of sixth through holes are formed in the rotating shaft 23 along the same straight line. A cylindrical film covering is inserted on the rotating shaft 23. First limit pins 29 are inserted into the sixth through holes on both sides of the film covering. The rotating shaft 23 is movably inserted at one end of the adjusting rod 13 away from the movable support frame. Second limit pins 30 are inserted into the sixth through holes on both sides of the adjusting rod 13. The first limit pins 29 ensure that the film covering does not move left and right on the rotating shaft 23, improving the accuracy of the film covering unit; the first limit pins 29 are inserted into different sixth through holes to adapt to film coverings of different widths, enabling the film covering unit to have an adjustment ability; the second limit pins 30 limit the adjusting rod to ensure the connection state between the adjusting rod and the rotating shaft and the stability of the film covering function.

[0037] The hole pitch between two adjacent third through holes and two adjacent fourth through holes is both 2 cm. Preferably, there are multiple third through holes and fourth through holes. By cooperating with different third through holes and fourth through holes, the lengths of the movable support frame and the connecting rod are adjusted, and then they are coordinated with the lengths when different-width film coverings are inserted on the rotating shaft, improving the stability of the film covering process of the film covering unit.

[0038] The first positioning pin 27 and the second positioning pin 28 have the same structure, including a first ball 18, a first spring 19, a first limiting rod 20, a positioning pin body 17, and a handle 21. The bottom of the positioning pin body 17 is provided with a hole, the hole diameter is the same as the maximum diameter of the first ball 18, the first spring 19 is placed in the hole, one end of the first spring 19 at the hole opening is connected to the first ball 18, and when the first spring 19 is not compressed, 1 / 2 of the first ball 18 is located outside the hole. The upper part of the positioning pin body 17 is horizontally and fixedly connected to the first limiting rod 20, and the upper surface of the positioning pin body 17 is connected to the handle 21. When positioning, the positioning pin body 17 is inserted into the hole of the structure to be positioned, the first limiting rod 20 is closely attached to the upper surface of the structure to be positioned, realizing the upper positioning of the structure to be positioned. The lower surface of the structure to be positioned contacts the first ball 18 and compresses the first spring 19, realizing the lower positioning of the structure to be positioned. The handle 21 provides a holding space for inserting and pulling out the positioning pin.

[0039] The first limit pins 29 and the second limit pins 30 have the same structure, including a second ball 26, a second spring 25, a second limiting rod 24, a limit pin body 15, and a pull ring 22. The arrangement of the second ball 26, the second spring 25, and the second limiting rod 24 of the first limit pin is the same as the arrangement of the first ball 18, the first spring 19, and the first limiting rod 20 of the first positioning pin. The upper surface of the limit pin body 15 is connected to the pull ring 22. The limit pin and the positioning pin have the same working principle. Since a new film covering to be laid needs to be replaced after the film covering to be laid is paved, the limit pin needs to be inserted and pulled out more frequently, and the structure of the pull ring 22 is more convenient for insertion and extraction.

[0040] The pull rod device 12 includes a first screw rod 32, a second screw rod 33 and a sleeve 31. The first screw rod 32 and the second screw rod 33 have opposite spiral directions and are rotatably connected inside the sleeve 31. One end of the first screw rod 32 away from the sleeve 31 is connected to the lower surface of the movable support frame 16, and one end of the second screw rod 33 away from the sleeve 31 is connected to the side surface of the connecting plate 11 close to the support unit. By rotating the sleeve 31, the length of the screw rod extending out is adjusted, and further the depth of the hairpin nails 10 entering the concrete surface is adjusted.

[0041] When the pull rod device 12 is stretched to the longest, the lower elevations of the finishing plate 7, the film covering unit and the hairpin nails 10 are on the same horizontal line. It is convenient to accurately adjust the depth of the hairpin nails 10 entering the concrete surface, and at the same time make the film covering unit closer to the finished concrete surface to prevent too many air bubbles from remaining in the film.

[0042] For a concrete hairpinning and film covering integrated tool of the present utility model, the following takes the simultaneous progress of the finishing, hairpinning and film covering processes as an example to illustrate its specific working steps:

[0043] Step 1, after placing the whole tool in a suitable position, insert the tubular film to be laid on the rotating shaft 23. The first limit pin 29 is inserted into the sixth through holes at both ends of the film to be laid. The rotating shaft 23 is movably inserted into one end of the adjusting rod 13 away from the movable support frame.

[0044] Step 2, select a suitable fourth through hole and third through hole to cooperate with the position of the first limit pin 29 inserted on the rotating shaft, so that the adjusting rod 13 is closer to the first limit pin 29, and the second limit pins 30 are inserted into the sixth through holes on both sides of the adjusting rod 13.

[0045] Step 3, insert the combined end 14 into the groove of the rod seat 9, and insert the first positioning pin 27 into the first through hole and the second through hole to realize the connection between the finishing plate and the film covering unit;

[0046] Step 4, adjust the extending length of the pull rod device until the depth of the hairpin nails 10 entering the concrete surface meets the construction requirements;

[0047] Step 5, pull the inverted U-shaped support 1 to perform finishing, hairpinning and film covering work on the concrete surface.

[0048] Step 6, when the finishing plate 7 needs to be adjusted in direction, the direction of the finishing plate 7 is adjusted through the attached guide wheel system.

[0049] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. An integrated tool for roughening and coating concrete, characterized in that: It comprises a bracket unit, a light receiving plate (7), a connecting plate (11), a plurality of roughened steel nails (10) and a coating unit, wherein the lower part of the bracket unit is movably connected to the light receiving plate (7), the coating unit is movably connected to the bracket unit, the connecting plate (11) is movably connected to the lower surface of the coating unit close to the bracket unit, and the plurality of roughened steel nails (10) are fixedly mounted on the connecting plate (11).

2. The one-piece tool for roughening and coating concrete according to claim 1, characterized in that: The bracket unit comprises an inverted U-shaped bracket (1), a rod seat (9) and an attached guide wheel system. The lower end surface of the inverted U-shaped bracket (1) is fixedly connected to the upper surface of the rod seat (9). The attached guide wheel system comprises a tripod (3), a guide wheel (2), a hook (5) and a bearing (4). The tripod (3) is fixedly installed on the inner surface of the inverted U-shaped bracket (1). One end of the tripod (3) is rotatably connected to the lower part of the inverted U-shaped bracket (1) through the bearing (4). The end of the tripod (3) away from the bearing (4) is rotatably connected to a connecting rod (8). Both ends of the connecting rod (8) close to the inverted U-shaped bracket (1) are fixedly connected to the guide wheel (2). The inner side of the inverted U-shaped bracket (1) is fixedly mounted with a hook (5). The connecting rod (8) is folded inside the inverted U-shaped bracket (1) through the hook (5).

3. The one-piece tool for roughening and coating concrete according to claim 2, characterized in that: The rod seat (9) and the light receiving plate (7) are connected via a pin shaft (6), a limit spring is sleeved around the pin shaft (6), the top end of the limit spring is fixedly connected to the rod seat (9), and the bottom end of the limit spring is fixedly connected to the light receiving plate (7).

4. The one-piece tool for roughening and coating concrete according to claim 3, characterized in that: The laminating unit comprises two adjusting rods (13) and a movable support frame (16), the movable support frame (16) comprises two adjusting ends and a combined end (14), the two adjusting rods (13) are both L-shaped and symmetrically distributed, the adjusting rod (13) has a fourth through hole in the vertical direction, the adjusting end has a third through hole in the vertical direction, the third through hole and the fourth through hole are inserted through a second positioning pin (28), the rod seat (9) has a first through hole in the vertical direction, the rod seat (9) has a groove on the side close to the laminating unit, the combined end (14) has a second through hole in the vertical direction, the combined end (14) is movably inserted in the groove of the rod seat (9), and the second through hole and the first through hole are inserted through a first positioning pin (27).

5. The one-piece tool for roughening and coating concrete according to claim 4, characterized in that: The coating unit further comprises a rotating shaft (23), a plurality of sixth through holes are provided along the same straight line on the rotating shaft (23), a cylindrical coating is inserted on the rotating shaft (23), first limit pins (29) are inserted into the sixth through holes on both sides of the coating, the rotating shaft (23) is movably inserted at one end of the adjusting rod (13) away from the movable support frame, and second limit pins (30) are inserted into the sixth through holes on both sides of the adjusting rod (13).

6. The one-piece tool for roughening and coating concrete according to claim 4, characterized in that: The hole spacing between each two adjacent third through holes and each two adjacent fourth through holes is 2 cm.

7. The one-piece tool for roughening and coating concrete according to claim 4, characterized in that: The first positioning pin (27) and the second positioning pin (28) have the same structure, comprising a first ball (18), a first spring (19), a first limiting rod (20), a positioning pin body (17) and a handle (21); a hole is opened at the bottom of the positioning pin body (17); the hole diameter is the same as the maximum diameter of the first ball (18); the first spring (19) is placed in the hole; one end of the first spring (19) at the hole opening is connected to the first ball (18); when the first spring (19) is not compressed, 1 / 2 of the first ball (18) is located outside the hole; the upper part of the positioning pin body (17) is horizontally fixedly connected to the first limiting rod (20); and the upper surface of the positioning pin body (17) is connected to the handle (21).

8. The one-piece tool for roughening and coating concrete according to claim 5, characterized in that: The first limiting pin (29) and the second limiting pin (30) have the same structure, including a second ball (26), a second spring (25), a second limiting rod (24), a limiting pin body (15) and a pull ring (22); the second ball (26), the second spring (25) and the second limiting rod (24) of the first limiting pin are arranged in the same manner as the first ball (18), the first spring (19) and the first limiting rod (20) of the first positioning pin; the upper surface of the limiting pin body (15) is connected to the pull ring (22).

9. The one-piece tool for roughening and coating concrete according to claim 1, characterized in that: The angle of the roughened steel nail is adjusted by a pull rod device, and the pull rod device (12) includes a first screw rod (32), a second screw rod (33) and a sleeve (31). The first screw rod (32) and the second screw rod (33) have opposite spiral directions and are rotatably connected inside the sleeve (31). The end of the first screw rod (32) away from the sleeve (31) is connected to the lower surface of the movable support frame (16), and the end of the second screw rod (33) away from the sleeve (31) is connected to the side of the connecting plate (11) close to the bracket unit.

10. The one-piece tool for roughening and coating concrete according to claim 9, characterized in that: When the pull rod device (12) is stretched to its longest length, the lower elevations of the light collecting plate (7), the film coating unit and the roughened steel nail (10) are located on the same horizontal line.

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