A vibrating screed for concrete construction

Abstract

The utility model discloses a kind of vibration screed plates for concrete construction, it includes fixed plate, vibration motor fixedly connected on the upper surface of fixed plate, two fixedly connected on the upper surface of fixed plate fixed seat, fixedly connected in fixed seat internal pivot shaft, torsional spring being arranged on the outer surface of pivot shaft, connecting seat being rotatably connected on the outer surface of pivot shaft, fixedly connected on the lower surface of connecting seat scraper, fixedly connected on the upper surface of scraper counterweight. By setting fixed seat, pivot shaft, torsional spring, connecting seat, scraper, counterweight, handle bar, threaded limiting round block, sleeve rod and thin steel wire etc. Structure, scraper and sleeve rod can be folded, to effectively reduce the occupied space of entire device when not in use, to further improve the portability of device when carrying, and cooperate with setting fixed shaft, can make handle bar present active state, to avoid the occurrence of head tilting phenomenon when using by different height users due to the inclination angle of handle bar is fixed.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a vibratory scraper plate for concrete construction. Background Technology

[0002] In the field of construction engineering, concrete construction is one of the core links, and the smoothing treatment of the concrete surface directly determines the stability, durability and quality of subsequent decoration construction of the engineering structure. The vibratory scraper plate for concrete construction is a special equipment used to scrape and compact the concrete surface in concrete construction. It is often used as the core working component of equipment such as vibratory rulers and small leveling machines. Its core function is to combine vibration and scraping functions to rearrange concrete particles and expel internal air bubbles, thereby enhancing the density of concrete.

[0003] However, existing vibratory screeds for concrete construction still have certain drawbacks. For example, the leveling components and handles of existing vibratory screeds are usually designed as a single unit. After construction, the overall exposed length of the device is long, and the auxiliary leveling components on both sides occupy a lot of space, making the device inconvenient to carry and lacking practicality. Secondly, the integrated design of the leveling components and handles forces operators of different heights to adopt unnatural force-applying postures such as bending over or standing on tiptoe. Inappropriate force application can cause the main body of the screed to tilt or lean, resulting in unevenness and scratches on the concrete surface, which affects the construction quality. Utility Model Content

[0004] The purpose of this utility model is to provide a vibratory scraper plate for concrete construction, which can fold the scraper and sleeve rod, thereby effectively reducing the space occupied by the entire device when not in use, thus improving the portability of the device when carried, and allowing the handle to be in a movable state, thereby avoiding the phenomenon of tilting the head when using the device by users of different heights due to the fixed tilt angle of the handle.

[0005] To achieve the above objectives, a vibratory scraper plate for concrete construction is provided, comprising:

[0006] A fixed plate, a vibrating motor fixedly connected to the upper surface of the fixed plate, two fixed seats fixedly connected to the upper surface of the fixed plate, a rotating shaft fixedly connected inside the fixed seats, a torsion spring set on the outer surface of the rotating shaft, a connecting seat rotatably connected to the outer surface of the rotating shaft, a scraper fixedly connected to the lower surface of the connecting seat, a counterweight fixedly connected to the upper surface of the scraper, a fixed shaft fixedly connected to the outer surface of the fixed seat, a handle rotatably connected to the outer surface of the fixed shaft, a threaded limiting block fixedly connected to the end of the handle away from the fixed shaft, a sleeve rod sleeved on the outer surface of the handle rod, a cavity A opened inside the sleeve rod, a cavity B opened inside the sleeve rod, a threaded groove A opened on the inner surface of cavity B, a threaded groove B opened on the inner surface of cavity B, a thin steel wire fixedly connected to the outer surface of the handle rod, and a hemispherical block fixedly connected to the end of the thin steel wire away from the handle rod.

[0007] Preferably, one end of the torsion spring is fixedly connected to the rotating shaft, and the other end of the torsion spring is fixedly connected to the connecting seat.

[0008] Preferably, the outer surface of the fixing plate is in contact with the scraper.

[0009] Preferably, the upper surface of the scraper is fixedly connected to the hemispherical block.

[0010] Preferably, the outer diameter of the threaded limiting block is larger than the inner diameter of cavity A, and the outer diameter of the threaded limiting block is smaller than the inner diameter of cavity B.

[0011] Preferably, the inner surface of the threaded groove A is adapted to the threaded limiting block, and the inner surface of the threaded groove B is adapted to the threaded limiting block.

[0012] Preferably, the inner diameter of cavity A is larger than the outer diameter of handle.

[0013] Preferably, the vibration motor is electrically connected to the built-in battery.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] By incorporating a fixed base, rotating shaft, torsion spring, connecting base, scraper, counterweight, handle, threaded limiting block, sleeve rod, and thin steel wire, the scraper and sleeve rod can be folded, effectively reducing the space occupied by the entire device when not in use and thus improving its portability. Furthermore, the fixed shaft allows the handle to be movable, preventing users of different heights from tilting their heads due to a fixed angle.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the overall structure of a vibratory scraper plate for concrete construction according to this utility model;

[0019] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a schematic diagram of the overall structure and storage state of a vibratory scraper plate for concrete construction according to this utility model;

[0021] Figure 4 This is a partial structural cross-sectional view of a vibratory scraper plate for concrete construction according to this utility model.

[0022] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0023] Figure 6 This is a cross-sectional view of the internal structure of a vibratory scraper plate for concrete construction according to this utility model.

[0024] Legend:

[0025] The components are as follows: 1. Fixed plate; 2. Vibration motor; 3. Fixed seat; 4. Rotating shaft; 5. Torsion spring; 6. Connecting seat; 7. Scraper; 8. Counterweight; 9. Fixed shaft; 10. Handle; 11. Threaded limit block; 12. Sleeve rod; 13. Cavity A; 14. Cavity B; 15. Threaded groove A; 16. Threaded groove B; 17. Fine steel wire; 18. Hemispherical block. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1 This utility model provides a vibratory scraper plate for concrete construction, which includes as follows: Figure 1 As shown, the concrete construction vibratory scraper plate of this embodiment includes: a fixed plate 1, a vibratory motor 2 fixedly connected to the upper surface of the fixed plate 1, and the vibratory motor 2 being electrically connected to a built-in battery.

[0028] Reference Figure 1 , Figure 2 and Figure 6Two fixed seats 3 are fixedly connected to the upper surface of the fixed plate 1, a rotating shaft 4 is fixedly connected inside the fixed seat 3, a torsion spring 5 is set on the outer surface of the rotating shaft 4, a connecting seat 6 is rotatably connected to the outer surface of the rotating shaft 4, a scraper 7 is fixedly connected to the lower surface of the connecting seat 6, a counterweight 8 is fixedly connected to the upper surface of the scraper 7 (to reduce the possibility of the scraper 7 flipping over with the torsion force of the torsion spring 5), and a fixed shaft 9 is fixedly connected to the outer surface of the fixed seat 3. One end of the torsion spring 5 is fixedly connected to the rotating shaft 4, and the other end of the torsion spring 5 is fixedly connected to the connecting seat 6. The outer surface of the fixed plate 1 is in contact with the scraper 7.

[0029] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 The following components are included: a handle 10 rotatably connected to the outer surface of the fixed shaft 9; a threaded limiting block 11 fixedly connected to the end of the handle 10 away from the fixed shaft 9; a sleeve rod 12 sleeved on the outer surface of the handle 10; a cavity A13 formed inside the sleeve rod 12; a cavity B14 formed inside the sleeve rod 12; a threaded groove A15 formed on the inner surface of the cavity B14; a threaded groove B16 formed on the inner surface of the cavity B14; a thin steel wire 17 fixedly connected to the outer surface of the handle 10; and a threaded groove B16 fixedly connected to the end of the thin steel wire 17 away from the handle 10. The upper surface of the scraper 7 is fixedly connected to the hemispherical block 18. The outer diameter of the threaded limiting block 11 is larger than the inner diameter of the cavity A13, and the outer diameter of the threaded limiting block 11 is smaller than the inner diameter of the cavity B14. It is used to limit the movement of the sleeve rod 12. The inner surface of the threaded groove A15 is adapted to the threaded limiting block 11, and the inner surface of the threaded groove B16 is adapted to the threaded limiting block 11. It is used to fix the position of the sleeve rod 12. The inner diameter of the cavity A13 is larger than the outer diameter of the handle 10, which facilitates the storage of the thin steel wire 17.

[0030] Those skilled in the art should connect all electrical components in this case to their compatible external power supply via wires, and should select a suitable controller according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0031] Working principle: When in use, start the vibration motor 2, which drives the fixed plate 1 and scraper 7 to vibrate as a whole. Then, hold the sleeve rod 12 and pull the entire device to achieve the concrete leveling operation. When the user is using it, since the handle rod 10 and the fixed shaft 9 are in a movable state, the tilt angle of the handle rod 10 and the sleeve rod 12 can be rotated around the fixed shaft 9. This ensures that users of different heights will not cause the fixed plate 1 and scraper 7 to tilt due to pressing down or raising the handle rod 10. The phenomenon is that after the concrete leveling is completed, the handle rod 10 is rotated around the fixed shaft 9 to keep it perpendicular to the fixed plate 1. Then, the sleeve rod 12 is rotated to disengage the threaded limiting block 11 from the threaded groove A15. Then, the sleeve rod 12 is pushed downward along the handle rod 10 to push the thin steel wire 17 into the cavity A13, thereby reducing the length of the thin steel wire 17 exposed. At this time, because the exposed length of the thin steel wire 17 is shortened, the scrapers 7 on both sides will rotate synchronously around the rotating shaft 4. Figure 3 As shown, the torsion spring 5 is twisted. When the threaded groove B16 inside the sleeve rod 12 contacts the threaded limiting block 11, the sleeve rod 12 is rotated again to drive the threaded limiting block 11 to be threadedly connected to the threaded groove B16 inside the cavity B14. This can limit and fix the entire sleeve rod 12, thereby achieving double folding of the scraper 7 and the cavity B14, reducing the space occupied by the entire device and improving portability. When the device needs to be used again, the sleeve rod 12 is rotated to disengage the threaded groove A15 from the threaded groove B16. Then, the sleeve rod 12 is pulled outward along the axis of the handle rod 10. When the threaded groove A15 contacts the threaded limiting block 11, the sleeve rod 12 is rotated to make it threadedly connected to the threaded limiting block 11. At this time, under the rebound force of the torsion spring 5, the scraper 7 will unfold on both sides for reuse.

[0032] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A vibratory scraper plate for concrete construction, comprising: The fixed plate (1) and the vibration motor (2) fixedly connected to the upper surface of the fixed plate (1) are characterized by two fixed seats (3) fixedly connected to the upper surface of the fixed plate (1), a rotating shaft (4) fixedly connected inside the fixed seat (3), a torsion spring (5) set on the outer surface of the rotating shaft (4), a connecting seat (6) rotatably connected to the outer surface of the rotating shaft (4), a scraper (7) fixedly connected to the lower surface of the connecting seat (6), a counterweight (8) fixedly connected to the upper surface of the scraper (7), a fixed shaft (9) fixedly connected to the outer surface of the fixed seat (3), and a handle (1) rotatably connected to the outer surface of the fixed shaft (9). 0) A threaded limiting round block (11) fixedly connected to the end of the handle rod (10) away from the fixed shaft (9), a sleeve rod (12) sleeved on the outer surface of the handle rod (10), a cavity A (13) opened inside the sleeve rod (12), a cavity B (14) opened inside the sleeve rod (12), a threaded groove A (15) opened on the inner surface of cavity B (14), a threaded groove B (16) opened on the inner surface of cavity B (14), a thin steel wire (17) fixedly connected to the outer surface of the handle rod (10), and a hemispherical block (18) fixedly connected to the end of the thin steel wire (17) away from the handle rod (10).

2. The vibratory scraper plate for concrete construction according to claim 1, characterized in that, One end of the torsion spring (5) is fixedly connected to the rotating shaft (4), and the other end of the torsion spring (5) is fixedly connected to the connecting seat (6).

3. The vibratory scraper plate for concrete construction according to claim 1, characterized in that, The outer surface of the fixing plate (1) is in contact with the scraper (7).

4. A vibratory scraper plate for concrete construction according to claim 1, characterized in that, The upper surface of the scraper (7) is fixedly connected to the hemispherical block (18).

5. A vibratory scraper plate for concrete construction according to claim 1, characterized in that, The outer diameter of the threaded limiting block (11) is greater than the inner diameter of cavity A (13), and the outer diameter of the threaded limiting block (11) is less than the inner diameter of cavity B (14).

6. A vibratory scraper plate for concrete construction according to claim 1, characterized in that, The inner surface of the threaded groove A (15) is adapted to the threaded limiting block (11), and the inner surface of the threaded groove B (16) is adapted to the threaded limiting block (11).

7. A vibratory scraper plate for concrete construction according to claim 1, characterized in that, The inner diameter of cavity A (13) is larger than the outer diameter of handle (10).

8. A vibratory scraper plate for concrete construction according to claim 1, characterized in that, The vibration motor (2) is electrically connected to the built-in battery.

Images