A concrete smoothing device for building construction

Abstract

This application relates to the field of concrete construction and discloses a concrete smoothing device for building construction. In this application, a sliding groove for a sliding connector is provided above the main smoothing plate. Sliding protrusions for the sliding connector are slidably connected to both sides of the sliding groove. A sliding connector is connected to each sliding protrusion. A sliding connector rotating rod is connected to the sliding connector. A fixed rotating block is connected to the sliding connecting rod. A telescopic smoothing plate is connected to the telescopic smoothing plate. A force transmission rod is rotatably connected to the inner side of the force transmission rod rotating connecting block. A rotating connector is rotatably connected above the force transmission rod. A lifting ring is rotatably connected to the rotating connector. An internal thread is fixedly connected to the inner side of the lifting ring. Through the contraction and expansion of this device, its practicality can be improved, making it widely applicable to on-site construction. This allows for its promotion, generates economic benefits, and improves the construction efficiency of concrete smoothing.

Description

Technical Field

[0001] This application belongs to the field of concrete construction technology, specifically a concrete smoothing device for building construction. Background Technology

[0002] In the field of building construction, concrete leveling devices are indispensable tools. Traditional leveling devices are often of fixed size, making it difficult to adapt to the needs of different construction scenarios, especially on work surfaces with large variations in width, resulting in inconvenient operation and low efficiency.

[0003] For example, application CN217537938U discloses a splicing construction device for building engineering, including a smoothing structure and a splicing structure. It allows a telescopic rod to extend and retract within a fixed cylinder, with a locking component securing the telescopic rod. This enables the smoothing plate to smooth concrete poured at a greater distance. When the concrete pouring area is large, the smoothing plate needs to be lengthened. A person holds the connecting plate and moves it downwards onto a U-shaped groove. Rotating screws on both sides of the U-shaped groove enter the horizontal holes through the vertical holes of the T-shaped holes on both sides of the U-shaped plate, while the rotating screw at the top of the U-shaped groove enters the elliptical hole at the top of the U-shaped plate. Rotating the rotating plate causes the rotating screws to move downwards, changing the rotating plate from a vertical to a horizontal state, thus splicing the connecting plate to both ends of the smoothing plate. When the concrete pouring area is small and disassembly is required, the rotating plate is changed from a horizontal to a vertical state, and the connecting plate is subsequently removed from both ends of the smoothing plate. It is very convenient to use.

[0004] However, the concrete smoothing device in this application requires manual installation of the trowel plate, which wastes manpower and resources, resulting in low construction efficiency of concrete smoothing. Furthermore, the trowel plate is easily lost after being disassembled and placed on the construction site, leading to equipment defects and low practicality. Utility Model Content

[0005] The purpose of this application is to provide a concrete leveling device for building construction in order to solve the problems mentioned above.

[0006] The technical solution adopted in this application is as follows: A concrete smoothing device for building construction includes a main screed plate as the main body of the equipment. A sliding groove for a sliding connector is provided on the upper part of the main screed plate. Screed protrusions for a sliding connector are slidably connected to both sides of the sliding groove for a sliding connector. A sliding connector is fixedly connected to the inner side of the sliding protrusions for a sliding connector. A rotating rod for a sliding connector is fixedly connected to the front of the sliding connector. A fixed rotating block is rotatably connected to the outer side of the rotating rod for a sliding connector. A telescopic screed plate is fixedly connected to the back side of the fixed rotating block. A force transmission rod rotating connecting block is fixedly connected to the upper part of the telescopic screed plate. A force transmission rod is rotatably connected to the inner side of the force transmission rod rotating connecting block. A rotating connector is rotatably connected to the upper part of the force transmission rod. A lifting ring is rotatably connected to the inner side of the rotating connector. An internal thread is fixedly connected to the inner side of the lifting ring.

[0007] By adopting the above technical solution, the main trowel is placed on the concrete surface to be troweled. The handle is manually rotated, causing the telescopic rod sleeve to rotate. Through the external and internal threads, the lifting ring can be raised or lowered. When the lifting ring lowers, it pushes the force transmission rod. The force transmission rod's protrusion and its rotating groove cause the force transmission rod to rotate and lower. When the upper part of the force transmission rod descends, the lower part pushes the telescopic trowel outwards. At this time, the sliding protrusion of the sliding connector slides outwards within the sliding groove of the sliding connector, thereby opening the telescopic trowel. The large contact area between the trowel and the concrete surface increases, thereby improving the efficiency of concrete troweling. When the equipment is limited or the operating space is narrow, the telescopic trowel can be retracted. When the force transmission rod is downward, the thrust spring in the sliding groove of the lower pressure rod will push the lower pressure rod, which can make the telescopic trowel run smoothly during extension and retraction and can tightly press the telescopic trowel to keep it on the same plane as the main trowel. Through the contraction and expansion of the equipment, its practicality can be improved, making it widely applicable to on-site construction. This can promote its use, generate economic benefits, and improve the construction efficiency of concrete troweling.

[0008] In a preferred embodiment, a downward pressure rod sliding groove is provided in the middle of the force transmission rod, a downward pressure rod thrust spring is fixedly connected to the inner side of the downward pressure rod sliding groove, a downward pressure rod is fixedly connected to the outer side of the downward pressure rod thrust spring, a downward pressure rod rotating connecting block is rotatably connected to the lower part of the downward pressure rod, and a telescopic trowel plate is fixedly connected to the lower part of the downward pressure rod rotating connecting block.

[0009] By adopting the above technical solution, the telescopic trowel can be pressed down when it is extended, so that the telescopic trowel and the main trowel are kept on the same plane, thereby ensuring the quality of concrete smoothing.

[0010] In a preferred embodiment, the inner side of the internal thread is slidably connected to an external thread, and the inner side of the external thread is fixedly connected to a telescopic sleeve.

[0011] By adopting the above technical solution, the lifting ring can be driven to rise and fall, thereby opening and closing the telescopic squeegee.

[0012] In a preferred embodiment, an upper limit ring and a lower limit ring are fixedly connected to the middle and lower part of the telescopic rod sleeve.

[0013] By adopting the above technical solution, the position of the lifting ring as it rises and falls can be limited, ensuring the normal operation of the equipment.

[0014] In a preferred embodiment, a telescopic rod is slidably connected above the telescopic rod sleeve.

[0015] By adopting the above technical solution, the equipment can be extended.

[0016] In a preferred embodiment, the inner side of the rotating connector is provided with a force transmission rod protrusion rotation groove, the inner side of the force transmission rod protrusion rotation groove is rotatably connected to a force transmission rod protrusion, and the inner side of the force transmission rod protrusion is fixedly connected to a force transmission rod.

[0017] By adopting the above technical solution, the up-and-down rotation of the force transmission rod and the rotating connector can be maintained, ensuring the extension and opening of the telescopic screed.

[0018] In a preferred embodiment, a hand handle is fixedly connected to the top of the telescopic rod.

[0019] By adopting the above technical solution, the equipment can be easily held and rotated, and the telescopic squeegee can be rotated to open or retract, maintaining the equipment's convenience.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0021] In this application, during the operation of the equipment, the main trowel is placed on the concrete surface to be troweled. The hand handle is manually rotated, which drives the telescopic rod sleeve to rotate. Through the external and internal threads, the lifting ring can be raised or lowered. When the lifting ring is lowered, it pushes the force transmission rod. Through the force transmission rod protrusion and the rotating groove of the force transmission rod protrusion, the force transmission rod rotates and lowers. When the upper part of the force transmission rod descends, the lower part of the force transmission rod pushes the telescopic trowel outward. At this time, the sliding protrusion of the sliding connector slides outward in the sliding groove of the sliding connector, thereby opening the telescopic trowel. The expansion plate increases the contact area between the troweling equipment and the concrete surface, thereby improving the efficiency of concrete troweling. When the equipment is limited or the operating space is narrow, the telescopic troweling plate can be retracted. When the force transmission rod is downward, the thrust spring in the sliding groove of the lower pressure rod will push the lower pressure rod, which can make the telescopic troweling plate run smoothly during expansion and contraction, and can tightly press the telescopic troweling plate to keep it on the same plane as the main troweling plate. Through the expansion and contraction of the equipment, its practicality can be improved, making it widely applicable to on-site construction, thereby promoting its use, generating economic benefits, and improving the construction efficiency of concrete troweling. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the device in this application;

[0023] Figure 2 This is a schematic diagram of the connection structure of the smearing plate in the device of this application;

[0024] Figure 3 This is a schematic diagram of the telescopic rod sleeve structure of the device in this application;

[0025] Figure 4 This is a schematic diagram of the telescopic trowel structure of the device in this application;

[0026] Figure 5 This is a schematic diagram of the sliding connection structure of the device in this application;

[0027] Figure 6 This is a schematic diagram of the lifting ring structure of the device in this application.

[0028] The markings in the diagram are: 1. Main trowel plate; 2. Sliding groove of sliding connector; 3. Sliding protrusion of sliding connector; 4. Sliding connector; 5. Rotating rod of sliding connector; 6. Fixed rotating block; 7. Rotating connecting block of force transmission rod; 8. Force transmission rod; 9. Rotating connector; 10. Lifting ring; 11. Internal thread; 12. External thread; 13. Telescopic rod sleeve; 14. Upper limit ring; 15. Sliding groove of lower pressure rod; 16. Thrust spring of lower pressure rod; 17. Lower pressure rod; 18. Rotating connecting block of lower pressure rod; 19. Telescopic trowel plate; 20. Lower limit ring; 21. Telescopic rod; 22. Hand handle; 23. Rotating groove of force transmission rod protrusion; 24. Force transmission rod protrusion. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Example: Refer to Figure 1-6 A concrete smoothing device for building construction includes a main smoothing plate 1 as the main body of the equipment. A sliding groove 2 for sliding connectors is provided on the upper part of the main smoothing plate 1. Sliding protrusions 3 for sliding connectors are slidably connected to both sides of the sliding groove 2. A sliding connector 4 is fixedly connected to the inner side of the sliding protrusions 3. A rotating rod 5 for sliding connectors is fixedly connected to the front of the sliding connector 4. A fixed rotating block 6 is rotatably connected to the outer side of the rotating rod 5. A telescopic smoothing plate 19 is fixedly connected to the back side of the fixed rotating block 6. A force transmission rod rotating connecting block 7 is fixedly connected to the upper part of the telescopic smoothing plate 19. A force transmission rod 8 is rotatably connected to the inner side of the force transmission rod rotating connecting block 7. A rotating connector 9 is rotatably connected to the upper part of the force transmission rod 8. A lifting ring 10 is rotatably connected to the inner side of the rotating connector 9. An internal thread 11 is fixedly connected to the inner side of the lifting ring 10. By expanding and contracting the equipment, its practicality can be improved, making it widely applicable to on-site construction. This can lead to its promotion, economic benefits, and improved efficiency in concrete smoothing.

[0031] Reference Figure 1-6 Place the main screed plate 1 on the concrete surface to be screed, manually rotate the hand handle 22, and drive the telescopic rod sleeve 13 to rotate through the telescopic rod 21. Through the external thread 12 and the internal thread 11, the lifting ring 10 can be driven to rise or fall. When the lifting ring 10 is driven to fall, the lifting ring 10 will push the force transmission rod 8. Through the force transmission rod protrusion 24 and the force transmission rod protrusion rotation groove 23, the force transmission rod 8 will rotate and fall. When the upper part of the force transmission rod 8 falls, the lower part of the force transmission rod 8 will push the telescopic screed plate 19 outward. At this time, the sliding protrusion 3 of the sliding connector slides outward in the sliding groove 2 of the sliding connector, thereby opening the telescopic screed plate 19 to increase the contact area between the screeding equipment and the concrete surface, thereby improving the efficiency of concrete screeding.

[0032] Reference Figure 1-6When the equipment is limited or the operating space is narrow, the telescopic trowel 19 can be retracted. When the force transmission rod 8 is downward, the downward pressure rod thrust spring 16 in the downward pressure rod sliding groove 15 will push the downward pressure rod 17, which can make the telescopic trowel 19 run smoothly during extension and retraction, and can tightly press the telescopic trowel 19 to keep it on the same plane as the main trowel 1. Through the contraction and opening operation of this equipment, the practicality of the equipment can be improved, and it can be widely used in on-site construction, thereby promoting its use, generating economic benefits, and improving the construction efficiency of concrete troweling.

[0033] Reference Figure 1-4 The force transmission rod 8 has a downward pressure rod sliding groove 15 in the middle. A downward pressure rod thrust spring 16 is fixedly connected to the inner side of the downward pressure rod sliding groove 15, and a downward pressure rod 17 is fixedly connected to the outer side of the downward pressure rod thrust spring 16. A downward pressure rod rotating connecting block 18 is rotatably connected to the lower part of the downward pressure rod 17, and a telescopic screed 19 is fixedly connected to the lower part of the downward pressure rod rotating connecting block 18. When the telescopic screed 19 is extended, it can be pressed down to keep the telescopic screed 19 and the main screed 1 on the same plane, thereby ensuring the quality of concrete smoothing.

[0034] Reference Figure 1-3 The inner side of the internal thread 11 is slidably connected to the external thread 12, and the inner side of the external thread 12 is fixedly connected to the telescopic rod sleeve 13. This can drive the lifting ring 10 to rise and fall, thereby opening and closing the telescopic squeegee 19.

[0035] Reference Figure 1-3 An upper limit ring 14 and a lower limit ring 20 are fixedly connected to the middle and lower part of the telescopic rod sleeve 13. These limit rings restrict the rising and falling position of the lifting ring 10, ensuring the normal operation of the equipment.

[0036] Reference Figure 1 A telescopic rod 21 is slidably connected above the telescopic rod sleeve 13. This allows the equipment to be extended.

[0037] Reference Figure 1-6 The inner side of the rotating connector 9 is provided with a force transmission rod protrusion rotation groove 23. A force transmission rod protrusion 24 is rotatably connected to the inner side of the force transmission rod protrusion rotation groove 23, and a force transmission rod 8 is fixedly connected to the inner side of the force transmission rod protrusion 24. This allows the force transmission rod 8 and the rotating connector 9 to rotate up and down, ensuring the extension and retraction of the telescopic screed 19.

[0038] Reference Figure 1 A hand handle 22 is fixedly connected to the top of the telescopic rod 21. This allows for easy hand-holding and rotation of the equipment, enabling the telescopic squeegee 19 to be opened or closed, maintaining the equipment's portability.

[0039] The implementation principle of a concrete smoothing device for building construction according to this application is as follows:

[0040] During operation, the main trowel plate 1 is placed on the concrete surface to be troweled. The hand handle 22 is manually rotated, which drives the telescopic rod sleeve 13 to rotate via the telescopic rod 21. Through the external thread 12 and the internal thread 11, the lifting ring 10 can be raised or lowered. When the lifting ring 10 is lowered, it pushes the force transmission rod 8. Through the force transmission rod protrusion 24 and the force transmission rod protrusion rotation groove 23, the force transmission rod 8 rotates and lowers. When the upper part of the force transmission rod 8 is lowered, the lower part of the force transmission rod 8 pushes the telescopic trowel plate 19 outward. At this time, the sliding protrusion 3 of the sliding connector slides outward in the sliding groove 2 of the sliding connector, thereby opening the... The telescopic trowel plate 19 increases the contact area between the troweling equipment and the concrete surface, thereby improving the efficiency of concrete troweling. When the equipment is limited or the operating space is narrow, the telescopic trowel plate 19 can be retracted. When the force transmission rod 8 moves downward, the downward pressure rod thrust spring 16 in the downward pressure rod sliding groove 15 will push the downward pressure rod 17, which can make the telescopic trowel plate 19 run smoothly during extension and retraction, and can tightly press the telescopic trowel plate 19 to keep it on the same plane as the main trowel plate 1. Through the contraction and opening of the equipment, the practicality of the equipment can be improved, and it is widely applicable to on-site construction, thereby promoting its use, generating economic benefits, and improving the construction efficiency of concrete troweling.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A concrete finishing device for use in construction work, comprising a device body main finishing plate (1), characterized in that: The main trowel plate (1) has a sliding groove (2) for a sliding connector on its upper side. Sliding protrusions (3) for a sliding connector are slidably connected to both sides of the sliding groove (2). A sliding connector (4) is fixedly connected to the inner side of the sliding protrusions (3). A sliding connector rotating rod (5) is fixedly connected to the front of the sliding connector (4). A fixed rotating block (6) is rotatably connected to the outer side of the sliding connector rotating rod (5). A telescopic trowel plate (19) is fixedly connected to the back side of the fixed rotating block (6). A force transmission rod rotating connecting block (7) is fixedly connected to the upper side of the telescopic trowel plate (19). A force transmission rod (8) is rotatably connected to the inner side of the force transmission rod rotating connecting block (7). A rotating connector (9) is rotatably connected to the upper side of the force transmission rod (8). A lifting ring (10) is rotatably connected to the inner side of the rotating connector (9). An internal thread (11) is fixedly connected to the inner side of the lifting ring (10).

2. A concrete trowelling device for use in construction work as claimed in claim 1 wherein: The force transmission rod (8) has a downward pressure rod sliding groove (15) in the middle. A downward pressure rod thrust spring (16) is fixedly connected to the inner side of the downward pressure rod sliding groove (15). A downward pressure rod (17) is fixedly connected to the outer side of the downward pressure rod thrust spring (16). A downward pressure rod rotating connecting block (18) is rotatably connected to the lower part of the downward pressure rod (17). A telescopic trowel plate (19) is fixedly connected to the lower part of the downward pressure rod rotating connecting block (18).

3. A concrete trowelling device for use in building construction as claimed in claim 1 wherein: The inner side of the internal thread (11) is slidably connected to the external thread (12), and the inner side of the external thread (12) is fixedly connected to the telescopic sleeve (13).

4. A concrete trowelling device for use in building construction as claimed in claim 3 wherein: The telescopic rod sleeve (13) is fixedly connected with an upper limit ring (14) and a lower limit ring (20) in the middle and at the bottom.

5. A concrete trowelling device for use in building construction as claimed in claim 4 wherein: The telescopic rod (21) is slidably connected above the telescopic rod sleeve (13).

6. A concrete trowelling device for use in building construction as claimed in claim 1 wherein: The inner side of the rotating connector (9) is provided with a force transmission rod protrusion rotation groove (23), and a force transmission rod protrusion (24) is rotatably connected to the inner side of the force transmission rod protrusion rotation groove (23). A force transmission rod (8) is fixedly connected to the inner side of the force transmission rod protrusion (24).

7. A concrete trowelling device for use in building construction as claimed in claim 5 wherein: A hand handle (22) is fixedly connected to the top of the telescopic rod (21).

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