Cement scraper for building construction

Abstract

The utility model relates to the field of building construction tools, in particular to a cement scraper for building construction, which comprises a scraper body, a connecting assembly, a holding rod and an angle positioning piece arranged on the connecting assembly and used for adjusting the angle between the scraper body and the holding rod, and the connecting assembly comprises a fixing shaft, a fixing plate and a rotating seat. The rotating seat is located between the scraper blade body and the fixed plate, the holding rod is rotationally connected with the rotating seat, the angle positioning piece is arranged in the rotating seat, and the angle positioning piece comprises a movable plate movably arranged in the rotating seat, a positioning column fixedly connected to the movable plate and a positioning spring arranged in the rotating seat in a stretching state; and the positioning spring is located on the side, away from the fixed shaft, of the movable plate, one end of the positioning column is arranged on the rotating base in a penetrating mode and can be inserted into the fixed shaft, and the effects of enhancing the practicability of the cement scraper and improving the working efficiency are achieved.

Description

Technical Field

[0001] The present application relates to the field of construction tools, and in particular to a cement scraper used in construction. Background Art

[0002] Construction refers to the actual on-site construction of a building or other structure, encompassing multiple stages, from site preparation and foundation work to structural construction and interior finishing. The use of cement scrapers is a key technology in this process. They help smooth and condition the cement surface, improving its density and surface quality, reducing cracking, facilitating subsequent construction, and conserving materials. The use of scrapers not only ensures a smooth, even surface, providing a good foundation for subsequent finishing, but also accelerates construction progress, improves efficiency, and ultimately enhances the quality of the entire construction project.

[0003] Conventional cement scrapers consist of a scraper body and a gripping rod fixedly connected at the midpoint of the scraper body's length. Both the scraper body and the gripping rod are of a certain length, effectively improving scraping efficiency. By gripping the gripping rod during use, workers can scrape the cement surface while standing, improving work efficiency while effectively reducing labor intensity.

[0004] The above-mentioned existing technical solutions have the following defects: since the angle between the scraper body and the holding rod is a fixed value after the scraper body is fixed to the holding rod, when leveling cement in dead corners such as corners, due to the limitation of operating space, the staff can only use one side of the scraper body to level the dead corners. When only one side of the cement scraper is used or the cement scraper is operated to move horizontally for leveling, the practicality of the cement scraper will be reduced, and the efficiency of cement leveling will be greatly reduced. Utility Model Content

[0005] In order to enhance the practicality of the cement scraper and improve the work efficiency when using the cement scraper, the present application provides a cement scraper for construction.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A cement scraper for construction, comprising a scraper body, a connecting assembly fixedly arranged on a surface of the scraper body, a gripping rod rotatably connected to the connecting assembly, and an angle positioning member arranged on the connecting assembly for adjusting the angle between the scraper body and the gripping rod;

[0008] The connecting assembly includes a fixed shaft fixed to the scraper body, a fixed plate fixedly arranged at the other end of the fixed shaft, and a rotating seat adapted to the fixed shaft and rotatably sleeved on the fixed shaft, the rotating seat being located between the scraper body and the fixed plate, the holding rod being rotatably connected to the rotating seat, and the angle positioning member being arranged inside the rotating seat;

[0009] The angle positioning component includes a movable plate movably arranged in the rotating seat, a positioning column fixed to the movable plate, and a positioning spring arranged in an extended state inside the rotating seat. The positioning spring is located on the side of the movable plate away from the fixed axis. One end of the positioning column is passed through the rotating seat and can be inserted into the fixed axis.

[0010] By adopting the above technical solution, after the holding rod is rotatably connected to the connecting assembly, the angle between the holding rod and the scraper body can change in real time when the staff holds the holding rod to push and pull the cement scraper, so that the staff can use it more labor-savingly. When it is necessary to smooth dead corners such as corners, the angle adjustment member is adjusted to change the angle between the holding rod and the length direction of the scraper body, so that the scraper body and the holding rod can be rotated and adjusted according to the actual use scenario, so that the length direction of the scraper body faces the staff. The staff can then push and pull the scraper body vertically and use the end of the scraper body to smooth the cement in the dead corner, thereby enhancing the practicality of the cement scraper and improving the efficiency of cement smoothing work.

[0011] Optionally, one end of the positioning column away from the fixed axis is movably provided on the rotating seat and is located outside the rotating seat.

[0012] By adopting the above technical solution, the angle between the holding rod and the scraper body can be adjusted easily by pulling one end of the positioning column located outside the rotating seat.

[0013] Optionally, the positioning spring is sleeved on the positioning column.

[0014] By adopting the above technical solution, the positioning column can limit the positioning spring and improve the stability of the positioning spring during compression.

[0015] Optionally, two ear plates are fixedly provided on the rotating seat, the two ear plates are spaced apart, the fixed plate is located between the two ear plates and are spaced apart, and the gripping rod is rotatably connected to the two ear plates.

[0016] Optionally, a mounting groove for placing an angle positioning member is provided on the rotating seat, the notch of the mounting groove faces the fixed plate, and the movable plate and the positioning spring are both located in the mounting groove.

[0017] By adopting the above technical solution, the angle adjustment member is arranged in the installation groove, which is convenient for installation.

[0018] Optionally, a sealing plate for closing the notch of the installation slot is installed on the rotating seat.

[0019] By adopting the above technical solution, the sealing plate can conceal the angle adjustment member, thereby reducing the possibility of debris entering the interior of the angle adjustment member during the cement smoothing process.

[0020] Optionally, at least two first fixing bolts are fixedly connected at intervals to the edges of both ends of the same plate surface of the scraper body, and the first fixing bolts are connected to first nuts;

[0021] The cement scraper also includes an extension plate, which is fixedly connected to a connecting plate at one end of the extension plate and a second fixing bolt at the other end. A second nut is connected to the second fixing bolt. A countersunk hole is provided on the connecting plate, and both the first fixing bolt and the second fixing bolt can be inserted into the countersunk hole.

[0022] By adopting the above technical solution, the number of extension plates at both ends of the scraper body can be increased or decreased by fixing bolts, connecting plates and nuts. By connecting the extension plates to increase the length of the scraper body, the area of ​​cement smoothing in a single time can be effectively increased, thereby improving the work efficiency of cement smoothing. When the extension plates are not used, the scraper body can be used to smooth the cement in a limited operating space.

[0023] Optionally, the end of the holding rod away from the ear plate is processed to form a first external thread section;

[0024] The cement scraper also includes an extension rod, one end of which is processed to form an internal thread section that can be threadedly connected to the first external thread section.

[0025] Optionally, the other end of the extension rod is processed to form a second external thread segment, and the second external thread segment can be threadedly connected to the internal thread segment.

[0026] By adopting the above technical solution, the extension rod can be added or removed from the grip rod according to the actual usage scenario, so as to facilitate the workers to perform cement leveling work.

[0027] Optionally, the cement scraper further includes a threaded connection cap that can be threadedly connected to the first external thread segment and the second external thread segment respectively.

[0028] By adopting the above technical solution, the threaded connection cap can be threadedly connected to the external thread section, thereby hiding the external thread section and reducing the possibility of workers scratching their hands or clothes due to improper operation.

[0029] In summary, this application has the following technical effects:

[0030] 1. By arranging the scraper body, connecting assembly, gripping rod, and angle positioning member, the angle between the gripping rod and the scraper body can be changed in real time, thereby facilitating the use of the worker with less effort. When it is necessary to smooth blind corners such as wall corners, the angle between the gripping rod and the length direction of the scraper body is adjusted by adjusting the angle adjusting member, so that the scraper body and the gripping rod can be rotated and adjusted according to the actual use scenario, so that the length direction of the scraper body faces the worker. The worker can then push and pull the scraper body vertically and use the end of the scraper body to smooth the cement in the blind corner, thereby enhancing the practicality of the cement scraper and improving the efficiency of cement smoothing work;

[0031] 2. By setting a positioning column through the rotating seat, pulling the end of the positioning column outside the rotating seat, it is convenient to adjust the angle between the gripping rod and the scraper body;

[0032] 3. By setting the positioning spring sleeve on the positioning column, the positioning column can limit the positioning spring and improve the stability of the positioning spring during the compression process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the appearance structure of this application;

[0034] Figure 2 It is a schematic diagram of the assembly structure of the scraper body, extension plate and connecting components;

[0035] Figure 3 is a schematic diagram of the prominent structure of the connected components;

[0036] Figure 4 It is a schematic diagram of the protruding structure of the angle positioning member;

[0037] Figure 5 It is a schematic diagram of the assembly structure of the grip rod, the extension rod and the threaded connection cap.

[0038] Explanation of the accompanying drawings: 1. Scraper body; 11. First fixing bolt; 12. First nut; 2. Extension plate; 21. Connecting plate; 22. Second fixing bolt; 23. Second nut; 3. Connecting assembly; 31. Fixed shaft; 311. Limiting recess; 32. Fixed plate; 33. Rotating seat; 331. Mounting groove; 332. Closing plate; 34. Ear plate; 4. Angle positioning member; 41. Movable plate; 42. Positioning column; 43. Positioning spring; 5. Holding rod; 51. First external threaded section; 6. Extension rod; 61. Internal threaded section; 62. Second external threaded section; 7. Threaded connection cap. DETAILED DESCRIPTION

[0039] The present application is further described in detail below with reference to the accompanying drawings.

[0040] The present application discloses a cement scraper for construction, Figure 1 and Figure 2 The cement scraper includes a scraper body 1 made of a strip plate, an extension plate 2 detachably connected to both ends of the scraper body 1, a connecting component 3 arranged on the surface of the scraper body 1 and located at the center of the scraper body 1, an angle positioning member 4 arranged on the connecting component 3, a holding rod 5 rotatably connected to the connecting component 3 at the lower end, an extension rod 6 detachably connected to the upper end of the holding rod 5, and a threaded connection cap 7 detachably connected to the upper end of the holding rod 5 or the upper end of the extension rod 6. The angle positioning member 4 can adjust the angle between the length direction of the scraper body 1 and the length direction of the holding rod 5, thereby improving the applicability of the cement scraper, enhancing the practicality of the cement scraper, and improving the work efficiency when using the cement scraper.

[0041] Reference Figure 2 A group of first fixing bolts 11 are fixedly connected to the edges of both ends of the scraper body 1. There are at least two first fixing bolts 11 arranged at intervals along the width direction of the scraper body 1, and each first fixing bolt 11 is connected to a first nut 12.

[0042] Reference Figure 2 The extension plate 2 is a rectangular plate. The length of the extension plate 2 is less than the length of the scraper body 1, and the width of the extension plate 2 is consistent with the width of the scraper body 1. A connecting plate 21 is fixedly connected to one end of the upper plate surface of the extension plate 2. Countersunk holes for placing the first fixing bolts 11 are spaced apart on the lower plate surface of the connecting plate 21, and the number of countersunk holes is consistent with the number of a group of first fixing bolts 11. A group of second fixing bolts 22 is fixedly connected to the other end of the upper plate surface of the extension plate 2. The first fixing bolts 11 and the second fixing bolts 22 use bolts of the same specification. The number of a group of second fixing bolts 22 is consistent with the number of countersunk holes, and the second fixing bolts 22 can be placed in the countersunk holes of another connecting plate 21. A second nut 23 is connected to the second fixing bolt 22. In this embodiment, the scraper body 1 and the extension plate 2 are both made of metal plates, which facilitates welding the fixing bolts and the connecting plate 21 to them.

[0043] According to the actual usage scenario, the number of extension plates 2 can be increased or decreased at both ends of the scraper body 1. By connecting the extension plates 2 to increase the length of the scraper body 1, the area of ​​cement smoothing in a single time can be effectively increased, thereby improving the work efficiency of cement smoothing. When the extension plates 2 are not used, the scraper body 1 can be used to smooth the cement in a limited operating space.

[0044] Combine Figure 2 and Figure 3The connecting assembly 3 includes a fixed shaft 31 whose lower end is fixedly connected to the center of the upper surface of the scraper body 1, a fixed plate 32 fixedly connected to the upper end of the fixed shaft 31, and a rotating seat 33 rotatably mounted on the fixed shaft 31 and located between the scraper body 1 and the fixed plate 32. The axis of the fixed shaft 31 is perpendicular to the surface of the scraper body 1. The fixed plate 32 is a circular plate with its center coinciding with the axis of the end face of the fixed shaft 31. The rotating seat 33 is annular, with a circular hole inside that matches the fixed shaft 31 and a square exterior. The two opposite walls of the rotating seat 33 respectively mate with the surface of the scraper body 1 and the surface of the fixed plate 32.

[0045] Reference Figure 3 A plurality of position-limiting recessed holes 311 are formed on the peripheral wall of the fixed shaft 31 at equal angular intervals around its axial direction. When the rotating seat 33 is mounted on the fixed shaft 31, the position-limiting recessed holes 311 are located within the circular hole of the rotating seat 33. A mounting slot 331 is formed on the side wall of the rotating seat 33 facing the fixed plate 32. The notch of the mounting slot 331 faces the fixed plate 32, and the length of the mounting slot 331 coincides with the radial direction of the circular hole of the rotating seat 33. A bezel is machined at the edge of the notch of the mounting slot 331, and a sealing plate 332 is fixed in place within the bezel by screws. The sealing plate 332 fits in the bezel and seals the notch of the mounting slot 331.

[0046] Combine Figure 3 and Figure 4 The angle positioning member 4 includes a movable plate 41 movably disposed within the mounting groove 331 and capable of sliding along the length of the mounting groove 331, a positioning post 42 inserted through and fixedly connected to the movable plate 41, and a positioning spring 43 sleeved on the positioning post 42, with both ends abutting against the end face of the mounting groove 331 and the plate surface of the movable plate 41 facing away from the circular hole of the rotating seat 33. When the positioning spring 43 is in an extended state, the movable plate 41 is in contact with the other end face of the mounting groove 331. Both ends of the positioning post 42 are movably inserted through the rotating seat 33. When the movable plate 41 is in contact with the end face of the mounting groove 331, the end of the positioning post 42 located within the circular hole is located within the limiting recess 311, while the other end of the positioning post 42 is located outside the outer wall of the rotating seat 33. The end of the positioning post 42 capable of being inserted into the limiting recess 311 is processed into a spherical surface, thereby effectively reducing the end face area of ​​the positioning post 42, facilitating the insertion of the positioning post 42 into the limiting recess 311.

[0047] Reference Figure 3 The connecting assembly 3 also includes two ear plates 34 that are spaced apart and fixedly connected to the side wall of the rotating seat 33 facing the fixed plate 32. The two ear plates 34 are respectively fixed on the opposite sides of the rotating seat 33. The fixed plate 32 is located between the two ear plates 34, and the fixed plate 32 and the two ear plates 34 are spaced apart.

[0048] Reference Figure 1The lower end of the gripping rod 5 is located between the two lugs 34 and is rotatably connected to the two lugs 34. A first externally threaded section 51 is formed at the upper end of the gripping rod 5. An internally threaded section 61 and a second externally threaded section 62 are formed at each end of the extension rod 6. The first externally threaded section 51 and the internally threaded section 61 are threadably connected, and the internally threaded sections 61 and the second externally threaded sections 62 on the two extension rods 6 are threadably connected. This allows for the addition or removal of extension rods 6 to the gripping rod 5 according to actual usage scenarios, facilitating cement leveling work for workers.

[0049] Reference Figure 5 The threaded connection cap 7 can be threadedly connected to the first external thread segment 51 and the second external thread segment 62 respectively, thereby hiding the external thread segments and reducing the possibility of workers scratching their hands or clothes due to improper operation.

[0050] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A cement scraper for construction, characterized by: It comprises a scraper body (1), a connecting assembly (3) fixedly arranged on the surface of the scraper body (1), a gripping rod (5) rotatably connected to the connecting assembly (3), and an angle positioning member (4) arranged on the connecting assembly (3) for adjusting the angle between the scraper body (1) and the gripping rod (5); The connecting assembly (3) comprises a fixed shaft (31) fixed to the scraper body (1), a fixed plate (32) fixedly arranged at the other end of the fixed shaft (31), and a rotating seat (33) adapted to the fixed shaft (31) and rotatably sleeved on the fixed shaft (31); the rotating seat (33) is located between the scraper body (1) and the fixed plate (32); the holding rod (5) is rotatably connected to the rotating seat (33); and the angle positioning member (4) is arranged inside the rotating seat (33); The angle positioning member (4) includes a movable plate (41) movably arranged in the rotating seat (33), a positioning column (42) fixed to the movable plate (41), and a positioning spring (43) arranged in an extended state inside the rotating seat (33), wherein the positioning spring (43) is located on the side of the movable plate (41) away from the fixed shaft (31), and one end of the positioning column (42) is passed through the rotating seat (33) and can be inserted into the fixed shaft (31).

2. A cement scraper for construction according to claim 1, characterized in that: One end of the positioning column (42) away from the fixed shaft (31) is movably arranged on the rotating seat (33) and is located outside the rotating seat (33).

3. A cement scraper for construction according to claim 2, characterized in that: The positioning spring (43) is sleeved on the positioning column (42).

4. A cement scraper for construction according to claim 1 or 3, characterized in that: Two ear plates (34) are fixedly arranged on the rotating seat (33), and the two ear plates (34) are arranged at intervals. The fixed plate (32) is located between the two ear plates (34) and is also arranged at intervals. The holding rod (5) is rotatably connected to the two ear plates (34).

5. The cement scraper for construction according to claim 1, characterized in that: The rotating seat (33) is provided with a mounting groove (331) for placing the angle positioning member (4), the notch of the mounting groove (331) faces the fixed plate (32), and the movable plate (41) and the positioning spring (43) are both located in the mounting groove (331).

6. A cement scraper for construction according to claim 5, characterized in that: A sealing plate (332) for closing the notch of the installation slot (331) is installed on the rotating seat (33).

7. The cement scraper for construction according to claim 1, characterized in that: At least two first fixing bolts (11) are fixedly connected at intervals on the edges of both ends of the same plate surface of the scraper body (1), and the first fixing bolts (11) are connected to first nuts (12); The cement scraper also includes an extension plate (2), wherein one end of the extension plate (2) is fixedly connected to a connecting plate (21) on the same plate surface, and the other end is fixedly connected to a second fixing bolt (22), and the second fixing bolt (22) is connected to a second nut (23). The connecting plate (21) is provided with a countersunk hole, and the first fixing bolt (11) and the second fixing bolt (22) can both be inserted into the countersunk hole.

8. The cement scraper for construction according to claim 4, characterized in that: The end of the gripping rod (5) away from the ear plate (34) is processed to form a first external thread section (51); The cement scraper further comprises an extension rod (6), one end of which is processed to form an internal thread section (61) capable of being threadedly connected to the first external thread section (51).

9. A cement scraper for construction according to claim 8, characterized in that: The other end of the extension rod (6) is processed to form a second external thread section (62), and the second external thread section (62) can be threadedly connected to the internal thread section (61).

10. The cement scraper for construction according to claim 8, characterized in that: The cement scraper further comprises a threaded connection cap (7) which can be threadedly connected to the first external thread section (51) and the second external thread section (62) respectively.

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