Portable concrete vibrator

By designing a portable concrete vibrator, adopting a box structure and automatic storage power cord design, the problem of inconvenient placement of power cords and vibration in the prior art is solved, and the base rollover is achieved, achieving more efficient construction and more stable equipment operation.

CN222976422UActive Publication Date: 2025-06-13TONGYU CONSTR GRP CO LTD
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Patent Information

Application Number
CN202422175875.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-05
Publication Date
2025-06-13
Estimated Expiration
2034-09-05

AI Technical Summary

Technical Problem

The existing plug-in concrete vibrator needs to be plugged in, and the power cord is inconvenient to store, resulting in messy work areas, affecting construction efficiency and order, and vibration can easily cause the base to roll over.

Method used

A portable concrete vibrator is designed, adopting a box structure, with semi-working blocks and wheels fixedly connected on the front and rear sides of the bottom left and right ends, and a motor and vibrating rod are installed at the top, and built-in storage components and shock absorbing components. The power cord can be automatically stored through the storage components, so that the shock absorbing components prevent the box from rolling over.

Benefits of technology

The automatic storage of power cords is realized, the mess in the work area is reduced, the construction efficiency and order are improved, and the box rollover caused by vibration is prevented through shock absorption components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of concrete vibrators, and discloses a portable concrete vibrator which comprises a box body, half-I-shaped blocks are fixedly connected to the front side and the rear side of the left end and the right end of the bottom of the box body respectively, wheels are rotationally connected to the middles of the four half-I-shaped blocks respectively, a support is fixedly connected to the middle of the top end of the box body, and the support is fixedly connected to the bottom of the box body. The top end of the support is fixedly connected with a motor, the output end of the motor is fixedly connected with a connecting pipe, the tail end of the connecting pipe is fixedly connected with a vibrating rod, the input end of the motor is fixedly connected with a power line, the tail end of the power line is fixedly connected with a plug, and the right end of the box body is provided with a storage assembly. According to the utility model, the lifting assembly and the damping assembly are matched to prevent the box body from rolling over due to the vibration of the vibrating rod to a certain extent, and the storage assembly stores the power line to prevent the power line from being placed randomly to cause interference to workers.
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Description

Technical Field

[0001] The utility model relates to the technical field of concrete vibrators, in particular to a portable concrete vibrator. Background Art

[0002] In the field of construction engineering, with the wide application of concrete in building structures, the requirements for the quality of concrete are also increasing day by day. In the early concrete construction, due to the lack of effective vibration means, a large number of air bubbles and voids are likely to exist inside the concrete, resulting in insufficient strength and durability of the concrete.

[0003] When the motor of the inserted concrete vibrator runs, the eccentric block rotates at a high speed through the transmission device. Since the center of gravity of the eccentric block is not on the axis of rotation, a centrifugal force will be generated. The direction of this centrifugal force changes continuously with the rotation of the eccentric block, thus forming a periodic exciting force. The exciting force is transmitted to the concrete through the vibrating rod, causing the friction and adhesion between the concrete particles to decrease sharply. Under the action of this high-frequency vibration, the internal particles of the concrete are continuously vibrated and impacted, and the air and moisture originally wrapped between the particles are discharged. The concrete particles are rearranged and fill the voids, thus achieving a dense effect.

[0004] However, the inserted concrete vibrator needs to be plugged in. Since the power cord is directly placed on the ground and is not convenient to put away when not in use, the working area appears messy, affecting the construction efficiency and order. Workers may be interfered by the power cord during operation, affecting the work progress. In addition, the vibration generated by the vibrating rod easily causes the base to tip over. Therefore, a portable concrete vibrator is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a portable concrete vibrator, aiming to improve the problems that the random placement of the power cord in the prior art will interfere with workers and the vibration generated by the vibrating rod easily causes the base to tip over.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A portable concrete vibrator, including a box body, both the front and back sides of the left and right ends of the bottom of the box body are fixedly connected with semi-I-shaped blocks, the middle parts of the four semi-I-shaped blocks are all rotatably connected with wheels, the middle part of the top end of the box body is fixedly connected with a support, the top end of the support is fixedly connected with a motor, the output end of the motor is fixedly connected with a connecting pipe, the end of the connecting pipe is fixedly connected with a vibrating rod, the input end of the motor is fixedly connected with a power cord, the end of the power cord is fixedly connected with a plug, a storage component is arranged at the right end of the box body, the storage component is used for storing the power cord, sliding grooves one are opened on the front and back sides of the left and right ends inside the box body, connecting rods are arranged at the left and right ends inside the box body, square plates are fixedly connected to the outer sides of the middle parts of the two connecting rods, both the front and back ends of the connecting rods are fixedly connected with sliders one, both the two sliders one are slidably connected with the adjacent sliding grooves one on the same side, fixed columns are fixedly connected to the outer sides of the front and back ends of the connecting rods at the outer ends of the square plates, the bottom ends of the two fixed columns both penetrate through the bottom end of the box body and are fixedly connected with shock absorption components, the shock absorption components are used to prevent the box body from vibrating too violently and causing it to tip over, lifting components are arranged at the bottom ends inside the box body at the bottom ends of the square plates, and the two lifting components are used to drive the square plates on the same side to rise or fall.

[0007] As a further description of the above technical solution: The storage component includes an L-shaped block and a limiting plate, the bottoms of the L-shaped block and the limiting plate are both fixedly connected with the top of the box body, the top end of the L-shaped block is rotatably connected with a rotating block, the bottom end of the rotating block is fixedly connected with a connecting shaft, and the bottom end of the connecting shaft is rotatably connected with the top end of the limiting plate.

[0008] As a further description of the above technical solution: The power cord is wound around the outer side of the connecting shaft.

[0009] As a further description of the above technical solution: The shock absorption component includes a trapezoidal block, the trapezoidal block is fixedly connected with the bottom end of the adjacent fixed column, the bottom end of the trapezoidal block is fixedly connected with a square block, a moving groove is opened in the middle of the bottom end of the square block, a sponge pad three is fixedly connected to the top end of the moving groove, a spring is fixedly connected to the bottom end of the sponge pad three, the bottom end of the spring is fixedly connected with a bottom plate at the bottom end of the square block, a connecting column is fixedly connected to the top end of the bottom plate inside the spring, sliding grooves two are opened on both the left and right sides of the bottom end of the square block, sponge pads one are fixedly connected to the tops of the two sliding grooves two, limiting grooves are opened on the mutually remote sides of the sliding grooves two inside the square block, sponge pads two are fixedly connected to the upper and lower ends of the two limiting grooves, sliding blocks two are fixedly connected to both the left and right sides of the top end of the bottom plate, and limiting blocks are fixedly connected to the tops of the mutually remote ends of the two sliding blocks two.

[0010] As a further description of the above technical solution: The second slider is slidably connected to the second chute on the same side, and the limiting block is slidably connected to the limiting groove on the same side.

[0011] As a further description of the above technical solution: The lifting assembly includes two internally threaded blocks and a driver. The bottom ends of the two internally threaded blocks are rotatably connected to the inner ends of the inside of the box body. An externally threaded block is threadedly connected inside each of the internally threaded blocks. The top end of the externally threaded block is fixedly connected to the bottom end of the adjacent square plate. Synchronous wheels are fixedly connected to the outer sides of the internally threaded blocks. The two synchronous wheels are connected by a synchronous belt. The inner end of the synchronous belt is meshed and connected to the outer end of the synchronous wheel. The driver is fixedly connected to the bottom end inside the box body. The output end of the driver is fixedly connected to a rotating shaft. A gear is fixedly connected to the top end of the rotating shaft. The gear is meshed and connected to the adjacent synchronous wheel.

[0012] As a further description of the above technical solution: A fixed plate is fixedly connected to the bottom left end of the box body. The front and rear sides of the top end of the fixed plate are fixedly connected with a first moving column. A second moving column is slidably connected inside each of the two first moving columns. A connecting handle is arranged at the top end of the first moving column. The front and rear sides of the bottom end of the connecting handle are respectively fixedly connected to the top of the second moving column on the same side. The first moving column and the second moving column on the same side are fixed by bolts.

[0013] As a further description of the above technical solution: A placing seat is fixedly connected to the left rear end of the top of the box body. The top end of the placing seat is semi-circular.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, during the movement of the box body, the plug drives the connecting shaft and the rotating block to rotate counterclockwise, so as to achieve the purpose of unwinding. When the concrete vibrator is not in use, rotating the rotating block clockwise can wind up the power cord, preventing the power cord from being placed randomly and causing interference to workers.

[0016] 2. In the utility model, by starting the driver, the bottom of the bottom plate is located below the wheels and contacts the ground. When the vibrating rod vibrates, the second slider and the limiting block will move inside the second chute and the limiting groove on the same side, and the connecting column will move inside the moving groove. The first sponge pad, the second sponge pad and the third sponge pad play a certain buffering role for the second slider, the limiting block and the third sponge pad, to a certain extent preventing the vibration of the vibrating rod from causing the box body to tip over. Description of the Drawings

[0017] Figure 1 is a three-dimensional schematic diagram of a portable concrete vibrator proposed by the utility model;

[0018] Figure 2Rear right view of the right side section of the box body of a portable concrete vibrator proposed by the present utility model;

[0019] Figure 3 Structural diagram of the lifting assembly of a portable concrete vibrator proposed by the present utility model;

[0020] Figure 4 Front sectional view of the trapezoidal block and square block of a portable concrete vibrator proposed by the present utility model;

[0021] Figure 5 Diagram of the storage assembly of a portable concrete vibrator proposed by the present utility model.

[0022] Legend:

[0023] 1. Box body; 2. Support; 3. Motor; 4. Connecting pipe; 5. Vibrating rod; 6. Placing seat; 7. Power cord; 8. Plug; 9. L-shaped block; 10. Limiting plate; 11. Rotating block; 12. Connecting shaft; 13. First chute; 14. First slider; 15. Connecting rod; 16. Square plate; 17. Fixed column; 18. Trapezoidal block; 19. Square block; 20. Second chute; 21. First sponge pad; 22. Limiting groove; 23. Second sponge pad; 24. Moving groove; 25. Third sponge pad; 26. Spring; 27. Bottom plate; 28. Connecting column; 29. Second slider; 30. Limiting block; 31. Internal thread block; 32. External thread block; 33. Synchronous pulley; 34. Synchronous belt; 35. Driver; 36. Rotating shaft; 37. Gear; 38. Semi-I-shaped block; 39. Wheel; 40. Fixed plate; 41. First moving column; 42. Second moving column; 43. Connecting handle; 44. Bolt. Detailed implementation manners

[0024] 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. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figure 1 and Figure 2, an embodiment provided by the utility model: a portable concrete vibrator, which includes a box body 1. At the front and back sides of the left and right ends of the bottom of the box body 1, semi-I-shaped blocks 38 are fixedly connected. A wheel 39 is rotatably connected to the middle of each of the four semi-I-shaped blocks 38. In the middle of the top end of the box body 1, a support 2 is fixedly connected. At the top end of the support 2, a motor 3 is fixedly connected. The output end of the motor 3 is fixedly connected with a connecting pipe 4. The end of the connecting pipe 4 is fixedly connected with a vibrating rod 5. The input end of the motor 3 is fixedly connected with a power cord 7. The end of the power cord 7 is fixedly connected with a plug 8. A storage component is arranged at the right end of the box body 1, and the storage component is used for storing the power cord 7. At the front and back sides of the left and right ends inside the box body 1, sliding grooves 13 are opened. At the left and right ends inside the box body 1, connecting rods 15 are arranged. Square plates 16 are fixedly connected to the outer sides of the middles of the two connecting rods 15. Sliders 14 are fixedly connected to the front and back ends of the connecting rods 15. Both of the two sliders 14 are slidably connected with the adjacent sliding grooves 13 on the same side. Fixed columns 17 are fixedly connected to the outer front and back ends of the connecting rods 15 at the outer ends of the square plates 16. The bottom ends of the two fixed columns 17 penetrate through the bottom end of the box body 1 and are fixedly connected with shock absorption components, and the shock absorption components are used to prevent the box body 1 from tipping over due to excessive vibration. At the bottom end inside the box body 1 at the bottom ends of the square plates 16, lifting components are arranged, and the two lifting components are used to drive the square plates 16 on the same side to rise or fall.

[0026] The lifting components drive the square plates 16 to rise or fall, so that the sliders 14 slide inside the adjacent sliding grooves 13 on the same side. Through the cooperation of the lifting components and the shock absorption components, to a certain extent, it can prevent the box body 1 from tipping over caused by the vibration of the vibrating rod 5. The storage component stores the power cord 7 to prevent the power cord 7 from being placed randomly and interfering with the workers. The four wheels 39 facilitate the movement of the box body 1.

[0027] Refer to Figure 1 and Figure 5 , the storage component includes an L-shaped block 9 and a limiting plate 10. The bottoms of the L-shaped block 9 and the limiting plate 10 are both fixedly connected to the top of the box body 1. A rotating block 11 is rotatably connected to the top end of the L-shaped block 9. A connecting shaft 12 is fixedly connected to the bottom end of the rotating block 11. The bottom end of the connecting shaft 12 is rotatably connected to the top end of the limiting plate 10. The power cord 7 is wound around the outside of the connecting shaft 12.

[0028] The plug 8 is connected to the socket. When the box body 1 moves to the left, the power cord 7 will automatically rotate counterclockwise, so as to unwind the power cord 7 to adapt to the vibrating rod 5 to reorganize the concrete particles at different positions. When the concrete vibrator stops being used, pull the plug 8 off the socket and rotate the rotating block 11 clockwise to drive the connecting shaft 12 to rotate and wind up the power cord 7 to prevent the power cord 7 from being placed randomly and interfering with the workers.

[0029] Refer to Figure 2 andFigure 4 The shock-absorbing assembly includes a trapezoidal block 18. The trapezoidal block 18 is fixedly connected to the bottom end of the adjacent fixed column 17. The bottom end of the trapezoidal block 18 is fixedly connected to a square block 19. A moving groove 24 is formed in the middle of the bottom end of the square block 19. A third sponge pad 25 is fixedly connected to the top end of the moving groove 24. A spring 26 is fixedly connected to the bottom end of the third sponge pad 25. The bottom end of the spring 26 is fixedly connected to a bottom plate 27 at the bottom end of the square block 19. A connecting column 28 is fixedly connected to the top end of the bottom plate 27 inside the spring 26. Slide grooves two 20 are formed on both the left and right sides of the bottom end of the square block 19. A first sponge pad 21 is fixedly connected to the top of both of the two slide grooves two 20. Limiting grooves 22 are formed on the sides away from each other of the square block 19 inside the slide grooves two 20. A second sponge pad 23 is fixedly connected to both the upper and lower ends of the two limiting grooves 22. Slide blocks two 29 are fixedly connected to both the left and right sides of the top end of the bottom plate 27. A limiting block 30 is fixedly connected to the top of the far end of each of the two slide blocks two 29. The slide blocks two 29 are all slidably connected to the same-side slide groove two 20. The limiting blocks 30 are all slidably connected to the same-side limiting groove 22.

[0030] When the bottom plate 27 moves upward, it drives the connecting column 28, the slide blocks two 29 and the limiting blocks 30 to move upward synchronously, squeezing the spring 26. The upper second sponge pad 23, the first sponge pad 21 and the third sponge pad 25 respectively buffer the impacts on the limiting block 30, the slide block two 29 and the connecting column 28. When the spring 26 drives the bottom plate 27 to move downward, the lower second sponge pad 23 buffers the bottom of the limiting block 30 to prevent the limiting block 30 from being damaged by the impact.

[0031] Refer to Figure 2 and Figure 3 The lifting assembly includes two internally threaded blocks 31 and a driver 35. The bottom ends of the two internally threaded blocks 31 are both rotatably connected to the inner ends inside the box body 1. An externally threaded block 32 is threadedly connected to the inside of each internally threaded block 31. The top end of the externally threaded block 32 is fixedly connected to the bottom end of the adjacent square plate 16. Synchronous wheels 33 are fixedly connected to the outside of the internally threaded blocks 31. The two synchronous wheels 33 are connected by a synchronous belt 34. The inner end of the synchronous belt 34 is meshed with the outer end of the synchronous wheel 33. The driver 35 is fixedly connected to the bottom end inside the box body 1. A rotating shaft 36 is fixedly connected to the output end of the driver 35. A gear 37 is fixedly connected to the top end of the rotating shaft 36. The gear 37 is meshed with the adjacent synchronous wheel 33.

[0032] Start the driver 35 to drive the rotating shaft 36 and the gear 37 to rotate. The rotation of the gear 37 drives the meshed synchronous wheel 33 to rotate in the opposite direction, so that the synchronous belt 34 generates displacement, thereby driving the other synchronous wheel 33 to rotate. When the synchronous wheel 33 rotates, it will drive the internally threaded block 31 to rotate, causing the externally threaded block 32 to rise or fall, thereby driving the square plate 16 to rise or fall.

[0033] Refer to Figure 1, a fixing plate 40 is fixedly connected to the bottom of the left end of the box body 1. Both the front and rear sides of the top end of the fixing plate 40 are fixedly connected with a first moving column 41. A second moving column 42 is slidably connected inside both of the two first moving columns 41. A connecting handle 43 is arranged at the top end of the first moving column 41. The front and rear sides of the bottom end of the connecting handle 43 are respectively fixedly connected to the top of the second moving column 42 on the same side. The first moving column 41 and the second moving column 42 on the same side are fixed by a bolt 44. A placing seat 6 is fixedly connected to the left rear end of the top of the box body 1. The top end of the placing seat 6 is semi-circular.

[0034] By rotating the bolt 44 counterclockwise, the connection between the first moving column 41 and the second moving column 42 becomes loose. Then move the connecting handle 43 up or down to match the height of different users. Then rotate the bolt 44 clockwise to fix the height of the connecting handle 43, which facilitates the movement of the concrete vibrator in cooperation with the wheels 39. When the vibrating rod 5 is not in use, place the vibrating rod 5 on the top end of the placing seat 6.

[0035] Working principle: When in use, insert the plug 8 into the socket to supply power to the motor 3 to make the vibrating rod 5 vibrate. Then insert the vibrating rod 5 into the concrete. The vibration of the vibrating rod 5 rearranges the concrete particles and fills the voids, thus achieving a dense effect. Then move the box body 1 to insert the vibrating rod 5 into another place. During the movement, the plug 8 drives the connecting shaft 12 and the rotating block 11 to rotate, thus achieving the purpose of unwinding. Rotate the rotating block 11 clockwise to wind up the power cord 7. By starting the driver 35, drive the two synchronous wheels 33 and the internally threaded block 31 to rotate synchronously, so that the externally threaded block 32 moves downward, driving the square plate 16, the connecting rod 15 and the fixed column 17 to move downward, making the bottom of the bottom plate 27 located below the wheels 39 and in contact with the ground. When the vibrating rod 5 vibrates, the second slider 29 and the limiting block 30 will move inside the same-side second chute 20 and the limiting groove 22, and the connecting column 28 will move inside the moving groove 24. The first sponge pad 21, the second sponge pad 23 and the third sponge pad 25 play a certain buffering role for the second slider 29, the limiting block 30 and the third sponge pad 25, and to a certain extent prevent the vibration of the vibrating rod 5 from causing the box body 1 to tip over.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable concrete vibrator, comprising a housing (1), characterized in that: The bottom left and right ends and the front and back sides of the box body (1) are fixedly connected with semi-I-shaped blocks (38); the middle parts of the four semi-I-shaped blocks (38) are rotatably connected with wheels (39); the middle part of the top of the box body (1) is fixedly connected with a support (2); the top of the support (2) is fixedly connected with a motor (3); the output end of the motor (3) is fixedly connected with a connecting pipe (4); the end of the connecting pipe (4) is fixedly connected with a vibrating rod (5); the input end of the motor (3) is fixedly connected with a power cord (7); the end of the power cord (7) is fixedly connected with a plug (8); the right end of the box body (1) is provided with a storage component, which is used to store the power cord (7); the front and back sides of the left and right ends of the interior of the box body (1) are provided with a slide groove (13); the box body The left and right ends of the interior of the box (1) are both provided with connecting rods (15), the middle outer sides of the two connecting rods (15) are fixedly connected with a square plate (16), the front and rear ends of the connecting rods (15) are both fixedly connected with a slider (14), the two sliders (14) are both slidably connected with the adjacent slide grooves (13) on the same side, the front and rear ends of the outer sides of the connecting rods (15) are both fixedly connected with fixed columns (17) at the outer ends of the square plate (16), the bottom ends of the two fixed columns (17) pass through the bottom end of the box (1) and are fixedly connected with a shock absorbing assembly, the shock absorbing assembly is used to prevent the box (1) from vibrating too violently and causing it to tip over, the bottom end of the interior of the box (1) is provided with a lifting assembly at the bottom end of the square plate (16), the two lifting assemblies are used to drive the square plate (16) on the same side to rise or fall.

2. A portable concrete vibrator according to claim 1, characterized in that: The storage assembly comprises an L-shaped block (9) and a limiting plate (10); the bottoms of the L-shaped block (9) and the limiting plate (10) are fixedly connected to the top of the box body (1); the top end of the L-shaped block (9) is rotatably connected to a rotating block (11); the bottom end of the rotating block (11) is fixedly connected to a connecting shaft (12); and the bottom end of the connecting shaft (12) is rotatably connected to the top end of the limiting plate (10).

3. A portable concrete vibrator according to claim 2, characterized in that: The power cord (7) is wound around the outside of the connecting shaft (12).

4. A portable concrete vibrator according to claim 1, characterized in that: The shock absorbing assembly comprises a trapezoidal block (18), wherein the trapezoidal block (18) is fixedly connected to the bottom end of an adjacent fixed column (17), the bottom end of the trapezoidal block (18) is fixedly connected to a square block (19), a movable groove (24) is provided in the middle of the bottom end of the square block (19), the top end of the movable groove (24) is fixedly connected to a sponge pad three (25), the bottom end of the sponge pad three (25) is fixedly connected to a spring (26), the bottom end of the spring (26) is fixedly connected to a bottom plate (27) at the bottom end of the square block (19), the top end of the bottom plate (27) is fixedly connected to the inner side of the spring (26), and the bottom end of the spring (26) is fixedly connected to a bottom plate (27) at the bottom end of the square block (19). The block (19) is fixedly connected with a connecting column (28), the left and right sides of the bottom end of the block (19) are provided with a second slide groove (20), the tops of the two second slide grooves (20) are fixedly connected with a sponge pad (21), the inside of the block (19) is provided with a limiting groove (22) on the side away from the second slide groove (20), the upper and lower ends of the two limiting grooves (22) are fixedly connected with a second sponge pad (23), the left and right sides of the top end of the bottom plate (27) are fixedly connected with a second slider (29), and the tops of the two second sliders (29) are fixedly connected with a limiting block (30).

5. A portable concrete vibrator according to claim 4, characterized in that: The second sliding block (29) is slidably connected to the second sliding groove (20) on the same side, and the limiting block (30) is slidably connected to the limiting groove (22) on the same side.

6. A portable concrete vibrator according to claim 1, characterized in that: The lifting assembly comprises two internal thread blocks (31) and a driver (35), the bottom ends of the two internal thread blocks (31) are rotatably connected to the inner ends of the casing (1), the inner parts of the internal thread blocks (31) are threadedly connected to the external thread blocks (32), the top ends of the external thread blocks (32) are fixedly connected to the bottom ends of the adjacent square plates (16), the outer sides of the internal thread blocks (31) are fixedly connected to synchronous wheels (33), the two synchronous wheels (33) are connected via a synchronous belt (34), the inner ends of the synchronous belt (34) are meshingly connected to the outer ends of the synchronous wheels (33), the driver (35) is fixedly connected to the inner bottom end of the casing (1), the output end of the driver (35) is fixedly connected to a rotating shaft (36), the top ends of the rotating shaft (36) are fixedly connected to a gear (37), and the gear (37) is meshingly connected to the adjacent synchronous wheels (33).

7. A portable concrete vibrator according to claim 1, characterized in that: A fixed plate (40) is fixedly connected to the bottom of the left end of the box body (1), and a moving column (41) is fixedly connected to the front and rear sides of the top of the fixed plate (40), and a moving column (42) is slidably connected inside the two moving columns (41). A connecting handle (43) is provided at the top of the moving column (41), and the front and rear sides of the bottom end of the connecting handle (43) are respectively fixedly connected to the top of the moving column (42) on the same side, and the moving column (41) and the moving column (42) on the same side are fixed by bolts (44).

8. A portable concrete vibrator according to claim 1, characterized in that: A placement seat (6) is fixedly connected to the left rear end of the top of the box body (1), and the top end of the placement seat (6) is semicircular.