Concrete vibrator with adjustable vibrating surface

Abstract

The utility model discloses a concrete vibrator with an adjustable vibrating surface, comprising a base and a vibrating plate symmetrically slidably arranged at the bottom thereof, a driving shaft being rotatably arranged at the bottom of the base, and a counter-rotating thread being arranged on the outer wall of the driving shaft, a matching block being slidably arranged at the bottom of the base, and the matching block thread being rotatably arranged on the counter-rotating thread, two vibrating plates moving in opposite directions, and the driving shaft rotating to make the matching block move down and fit on the two vibrating plates. The concrete vibrator with an adjustable vibrating surface provided by the utility model forms a vibrating surface by connecting two vibrating plates in a default state, and utilizing the two vibrating plates to move in opposite directions to move away from each other, and then after the driving shaft rotating, the matching block thread is rotated on the counter-rotating thread to move down and fit on the two vibrating plates, at which time the bottom surfaces of the two vibrating plates cooperate with the bottom surface of the matching block to jointly form a vibrating surface, thereby expanding the vibrating surface to adapt to a wide range of concrete surfaces.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrators, in particular to a concrete vibrator with an adjustable vibrating surface. Background Art

[0002] A vibrator is a device used to compact concrete after pouring. It is mainly used to remove air and moisture from concrete through vibration after pouring, making the concrete more uniform and dense, and improving the strength and durability of the concrete.

[0003] According to patent No. CN212927075U, the publication (announcement) date: 2021-04-09 discloses a new type of flat-plate vibrator, including a base plate, a vibration motor installed on the upper end surface of the base plate, and a vibrator handle; the new type of flat-plate vibrator is also provided with an anti-pollution cover; the anti-pollution cover is installed on the upper end surface of the base plate; the vibration motor is installed in the anti-pollution cover; the vibrator handle is installed on the outer surface of the anti-pollution cover near the upper end; a plurality of buffer springs are provided between the anti-pollution cover and the base plate.

[0004] In the prior art including the above patent, the vibration of the vibration motor is used in conjunction with the bottom plate in contact with the concrete to vibrate the concrete within the range, thereby making the concrete more flat and uniform. However, the area of ​​the bottom plate is fixed, and when vibrating concrete in a large or small range, the adaptability of the bottom plate vibration surface is poor. Utility Model Content

[0005] The utility model aims to provide a concrete vibrator with an adjustable vibrating surface, which can adjust the vibrating surface of the vibrator to adapt to the range of vibrated concrete.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete vibrator with an adjustable vibrating surface, comprising a base and a vibrating plate symmetrically slidably arranged at the bottom thereof, a driving shaft being rotatably arranged at the bottom of the base, and a counter-rotating thread being arranged on the outer wall of the driving shaft, a matching block being slidably arranged at the bottom of the base, and the matching block thread being rotatably arranged on the counter-rotating thread, the two vibrating plates moving in opposite directions, and the driving shaft being rotated to make the matching block move down and fit onto the two vibrating plates.

[0007] Preferably, an adjacent side edge of the vibrating plate is provided with a bevel portion, and a cut portion matching the bevel portion is symmetrically provided at the bottom of the matching block.

[0008] Preferably, a thread groove is provided on the top of the matching block, and the counter-rotating thread on the driving shaft is rotatably arranged on the thread groove, and the sliding rods symmetrically arranged on the top of the matching block are slidably arranged on the bottom of the base.

[0009] Preferably, a sheath is fixedly mounted on the top of the base, a main motor is fixedly mounted inside the sheath, a pulley is fixedly mounted on the output end of the main motor and the outer wall of the driving shaft respectively, and a belt transmission is provided between the two pulleys.

[0010] Preferably, a nut piece is rotatably provided on the positive-screw thread arranged on the outer wall of the driving shaft, and support rods sliding on the bottom of the base are respectively fixedly installed on the top of the two vibrating plates, and connecting rods are respectively hingedly provided at the ends of the extension rods arranged on the two support rods, and the first ends of the connecting rods are respectively hingedly provided on the nut piece.

[0011] Preferably, a vibration motor is fixedly mounted on the top of the base.

[0012] Preferably, the vibrating plate is a stainless steel plate.

[0013] Preferably, a raised portion is provided on the side of the vibrating plate.

[0014] In the above technical scheme, the utility model provides a concrete vibrator with an adjustable vibrating surface, which has the following beneficial effects: by connecting two vibrating plates in a default state to form a vibrating surface, the two vibrating plates are moved in opposite directions to move away from each other, and then after the driving shaft is rotated, the matching block thread is rotated on the counter-rotating thread to move down and fit onto the two vibrating plates. At this time, the bottom surfaces of the two vibrating plates cooperate with the bottom surface of the matching block to jointly form a vibrating surface, thereby expanding the vibrating surface to adapt to a wide range of concrete surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure of the base provided by an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the overall cross-sectional structure of a base provided in an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of a partial cross-sectional structure of a base provided in an embodiment of the utility model;

[0019] Figure 4 A schematic diagram of the enlarged structure of point A provided in an embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the enlarged structure of point B provided in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Base; 2. Vibrating plate; 3. Main motor; 4. Nut; 5. Vibrating motor; 11. Sheath; 21. Lifting part; 22. Support rod; 23. Inclined part; 24. Extension rod; 25. Connecting rod; 31. Pulley; 32. Driving shaft; 33. Forward thread; 34. Reverse thread; 41. Matching block; 42. Cutting part; 43. Thread groove; 44. Sliding rod. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-5 As shown, a concrete vibrator with adjustable vibrating surface comprises a base 1 and a vibrating plate 2 symmetrically slidably arranged at the bottom thereof, a driving shaft 32 is rotatably arranged at the bottom of the base 1, and a counter-rotating thread 34 is arranged on the outer wall of the driving shaft 32, a matching block 41 is slidably arranged at the bottom of the base 1, and the matching block 41 is threadedly rotatably arranged on the counter-rotating thread 34, two vibrating plates 2 move in opposite directions, and the driving shaft 32 rotates to make the matching block 41 move down and fit on the two vibrating plates 2. By connecting the two vibrating plates 2 in the default state to form a vibrating surface, the two vibrating plates 2 move in opposite directions to move away from each other, and then after the driving shaft 32 rotates, the matching block 41 is threadedly rotated on the counter-rotating thread 34 to move down and fit on the two vibrating plates 2, at which time the bottom surfaces of the two vibrating plates 2 cooperate with the bottom surface of the matching block 41 to form a vibrating surface together, thereby expanding the vibrating surface to adapt to a wide range of concrete surfaces.

[0025] Specifically, the two vibrating plates 2 in the above technical solution can be driven in opposite directions by an electric push rod; or by a motor in conjunction with a gear or rack; or by any method known to those skilled in the art to drive the two vibrating plates 2 to move in opposite directions.

[0026] Specifically, the driving shaft 32 in the above technical solution can be rotated by an electric push rod in conjunction with a rack and a gear; it can also be a motor; or any other method known to those skilled in the art to drive the driving shaft 32 to rotate.

[0027] As a technical solution further provided by the utility model, a chamfered portion 23 is provided on one adjacent side of the vibrating plate 2 , and a cut portion 42 matching the chamfered portion 23 is symmetrically provided on the bottom of the matching block 41 .

[0028] Specifically, when the driving shaft 32 rotates, the matching block 41 threadably rotates on the counter-rotating thread 34 to move downward. At this time, the cut-away portion 42 symmetrically arranged at the bottom of the matching block 41 can squeeze the inclined portion 23 on the two vibrating plates 2, so that the two vibrating plates 2 move in opposite directions to move away from each other. At the same time, the matching block 41 can be attached to the two vibrating plates 2 so that the bottom surfaces of the two vibrating plates 2 cooperate with the bottom surface of the matching block 41 to jointly form a vibrating surface.

[0029] Furthermore, a thread groove 43 is formed on the top of the matching block 41 , and the reverse thread 34 on the driving shaft 32 is threadably disposed on the thread groove 43 , and the sliding rods 44 symmetrically disposed on the top of the matching block 41 are slidably disposed on the bottom of the base 1 .

[0030] Specifically, when the driving shaft 32 rotates, the reverse thread 34 will rotate with the thread groove 43, and because the two sliding rods 44 are respectively slidably disposed at the bottom of the base 1, the matching block 41 can move downward in the vertical direction.

[0031] Furthermore, a sheath 11 is fixedly installed on the top of the base 1, a main motor 3 is fixedly installed inside the sheath 11, a pulley 31 is fixedly installed on the output end of the main motor 3 and the outer wall of the driving shaft 32 respectively, and a belt transmission is provided between the two pulleys 31.

[0032] Specifically, the main motor 3 is used in conjunction with the pulley 31 to drive the driving shaft 32 to rotate through the belt, and the sheath 11 is used to protect the main motor 3.

[0033] Furthermore, a nut member 4 is rotatably provided on the positive-screw thread 33 provided on the outer wall of the driving shaft 32, and support rods 22 sliding on the bottom of the base 1 are fixedly installed on the top of the two vibrating plates 2. The ends of the extension rods 24 provided on the two support rods 22 are respectively hingedly provided with connecting rods 25, and the first ends of the connecting rods 25 are respectively hingedly provided on the nut member 4.

[0034] Specifically, when the main motor 3 drives the driving shaft 32 to rotate, the reverse thread 34 will rotate with the thread groove 43, and the matching block 41 will move downward in the vertical direction. At the same time, the forward thread 33 and the nut member 4 arranged on the outer wall of the driving shaft 32 will rotate, and the nut member 4 will move upward to cooperate with the two connecting rods 25 to push the two vibrating plates 2 away from each other. Figure 3 and Figure 4As shown, the cut surface 42 at the bottom of the matching block 41 gradually fits on the inclined surface 23, and at the same time, the bottom surfaces of the two vibrating plates 2 cooperate with the bottom surface of the matching block 41 to form a vibrating surface together, thereby expanding the vibrating surface. Similarly, by driving the main motor 3 to rotate in the reverse direction, so that the reverse thread 34 and the thread groove 43 are threadedly rotated again, the matching block 41 moves up in the vertical direction, and at the same time, the forward thread 33 and the nut member 4 are threadedly rotated again, and the nut member 4 moves down to cooperate with the two connecting rods 25 to pull the two vibrating plates 2 closer to each other. At this time, only the bottom surfaces of the two vibrating plates 2 are used as the vibrating surface to reduce the vibrating surface.

[0035] Furthermore, a vibration motor 5 is fixedly mounted on the top of the base 1 .

[0036] Specifically, the subsequent vibration work is achieved by utilizing the vibration motor 5 .

[0037] Furthermore, the vibrating plate 2 is a stainless steel plate.

[0038] Furthermore, a raised portion 21 is provided on the side of the vibrating plate 2 .

[0039] Specifically, Figure 2 As shown, the raised portion 21 is used to squeeze and smooth the concrete surface when the vibrating plate 2 moves.

[0040] Working principle: When the vibration surface needs to be expanded, the main motor 3 drives the driving shaft 32 to rotate, the reverse thread 34 rotates with the thread groove 43, and the matching block 41 moves downward in the vertical direction. At the same time, the forward thread 33 and the nut member 4 arranged on the outer wall of the driving shaft 32 rotate, and the nut member 4 moves upward to cooperate with the two connecting rods 25 to push the two vibration plates 2 away from each other. Figure 3 and Figure 4 As shown, the cut surface 42 at the bottom of the matching block 41 gradually fits on the inclined surface 23, and at the same time, the bottom surfaces of the two vibrating plates 2 cooperate with the bottom surface of the matching block 41 to form a vibrating surface together, thereby expanding the vibrating surface. Similarly, by driving the main motor 3 to rotate in the reverse direction, so that the reverse thread 34 and the thread groove 43 are threadedly rotated again, the matching block 41 moves up in the vertical direction, and at the same time, the forward thread 33 and the nut member 4 are threadedly rotated again, and the nut member 4 moves down to cooperate with the two connecting rods 25 to pull the two vibrating plates 2 closer to each other. At this time, only the bottom surfaces of the two vibrating plates 2 are used as the vibrating surface to reduce the vibrating surface.

[0041] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A concrete vibrator with adjustable vibrating surface, characterized in that: The invention comprises a base (1) and a vibrating plate (2) symmetrically slidably arranged at the bottom thereof, wherein a driving shaft (32) is rotatably arranged at the bottom of the base (1), and a counter-rotating thread (34) is arranged on the outer wall of the driving shaft (32), and a matching block (41) is slidably arranged at the bottom of the base (1), and the matching block (41) is threadably rotatably arranged on the counter-rotating thread (34), and the two vibrating plates (2) move in opposite directions, and the driving shaft (32) rotates to make the matching block (41) move downward and fit onto the two vibrating plates (2).

2. A concrete vibrator with adjustable vibrating surface according to claim 1, characterized in that: An inclined portion (23) is provided on an adjacent side edge of the vibrating plate (2), and a cut portion (42) matching the inclined portion (23) is symmetrically provided on the bottom of the matching block (41).

3. The concrete vibrator with adjustable vibrating surface according to claim 1, characterized in that: A thread groove (43) is provided on the top of the pairing block (41), and the reverse thread (34) on the driving shaft (32) is threadably arranged on the thread groove (43), and sliding rods (44) symmetrically arranged on the top of the pairing block (41) are slidably arranged on the bottom of the base (1).

4. The concrete vibrator with adjustable vibrating surface according to claim 1, characterized in that: A protective sleeve (11) is fixedly mounted on the top of the base (1), a main motor (3) is fixedly mounted inside the protective sleeve (11), a pulley component (31) is fixedly mounted on the output end of the main motor (3) and the outer wall of the driving shaft (32), and a belt transmission is provided between the two pulley components (31).

5. The concrete vibrator with adjustable vibrating surface according to claim 1, characterized in that: A nut member (4) is rotatably provided on the positive-screw thread (33) provided on the outer wall of the driving shaft (32); support rods (22) sliding on the bottom of the base (1) are respectively fixedly installed on the top of the two vibrating plates (2); the ends of the extension rods (24) provided on the two support rods (22) are respectively hingedly provided with connecting rods (25), and the first ends of the connecting rods (25) are respectively hingedly provided on the nut member (4).

6. The concrete vibrator with adjustable vibrating surface according to claim 1, characterized in that: A vibration motor (5) is fixedly mounted on the top of the base (1).

7. The concrete vibrator with adjustable vibrating surface according to claim 1, characterized in that: The vibrating plate (2) is a stainless steel plate.

8. The concrete vibrator with adjustable vibrating surface according to claim 1, characterized in that: A raised portion (21) is provided on the side of the vibrating plate (2).

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