Concrete vibrating device

Abstract

The present application relates to the technical field of concrete vibrating devices, improves the problem of insufficient adaptability of the prior art to concrete layers of different depths, and discloses a concrete vibrating device, which includes a power source, a transmission assembly, a base and a vibrating rod; the transmission assembly includes a connecting pipe and a transmission flexible shaft, the connecting pipe is fixed to the base, and the vibrating rod includes a plurality of outer contact cylinders and a plurality of inner rotating cylinders; one end of an outer contact cylinder is connected to the base, and the other outer contact cylinders are nested in the outer contact cylinder; one inner rotating cylinder is coaxially rotatably connected to the outer contact cylinder connected to the base, and the other inner rotating cylinders are nested in the inner rotating cylinder; the concrete vibrating device also includes a telescopic control assembly and a counterweight assembly; the telescopic control assembly is arranged in a plurality of inner rotating cylinders for controlling the telescopic control assembly; the counterweight assembly is arranged on the outer walls of a plurality of inner rotating cylinders. The present application can realize the multi-stage telescopic function of the vibrating rod, and the vibration depth and range can be adjusted according to actual needs.

Description

Technical Field

[0001] The present application relates to the technical field of concrete vibrating devices, and in particular to a concrete vibrating device. Background Art

[0002] The concrete vibrator can be inserted into the interior of the poured concrete for vibration. It is mainly used to remove bubbles in the concrete pouring, compact the concrete, and eliminate the honeycomb surface of the concrete, so as to improve its strength and ensure the quality of the concrete components.

[0003] There is a concrete vibrating device in the prior art, the main components of which include a vibrating rod, a flexible shaft, an anti-reverse device, a motor, an electrical switch and an electric support. Among them, the transmission shaft is a flexible shaft. The vibrating rod is an eccentric shaft type. The power of the concrete vibrating rod mainly comes from the motor, which generates a rotating force, and the rotating force generated by the motor is first transmitted to the transmission device. The transmission device may include gears, pulleys, etc., which are used to change the speed and direction of the rotating force to adapt to the working requirements of the vibrating rod. The rotating force adjusted by the transmission device is further transmitted to the vibration generating mechanism. The vibration generating mechanism is the core component of the concrete vibrating rod, which is responsible for converting the rotating force into a linear vibration force. The linear vibration force generated by the vibration generating mechanism is finally transmitted to the vibrating rod body. The vibrating rod body is a component that is in direct contact with the concrete. It transmits energy to the concrete through vibration, thereby realizing the vibration and compaction of the concrete. The centrifugal force generated by the rotating shaft with an eccentric mass installed at the center of the vibrating rod is transmitted to the vibrating shell through the bearing during high-speed rotation, so that the vibrating rod generates circular vibration.

[0004] With regard to the above-mentioned related technologies, the length of the vibrating rod is fixed when the prior art leaves the factory, which has the defect of insufficient adaptability to concrete layers of different depths. Summary of the invention

[0005] In order to improve the defect of the prior art that the prior art is insufficiently adaptable to concrete layers of different depths, the present application provides a concrete vibrating device.

[0006] The following technical solutions are adopted:

[0007] A concrete vibrating device comprises a power source, a transmission assembly, a base and a vibrating rod; the transmission assembly comprises a connecting pipe and a transmission flexible shaft, the connecting pipe is fixedly connected to the base, one end of the transmission flexible shaft is connected to the output end of the power source, and the vibrating rod comprises a plurality of outer contact cylinders and a plurality of inner rotating cylinders; one end of one of the outer contact cylinders is connected to the base, and the other outer contact cylinders are coaxially nested in adjacent outer contact cylinders in sequence; a plurality of inner rotating cylinders are all rotationally connected to the inside of the outer contact cylinders; one of the inner rotating cylinders is coaxially rotationally connected to the outer contact cylinder connected to the base, and the other inner rotating cylinders are coaxially nested in adjacent inner rotating cylinders in sequence, and the inner rotating cylinder farthest from the base is coaxially rotationally connected to the outer contact cylinder farthest from the base; the other end of the transmission flexible shaft passes through the base and is connected to the center of the inner rotating cylinder; the concrete vibrating device also comprises a telescopic control assembly and a counterweight assembly; the telescopic control assembly is arranged in a plurality of the inner rotating cylinders for controlling the telescopic control assembly; the counterweight assembly is arranged on the outer walls of a plurality of the inner rotating cylinders.

[0008] By adopting the above technical solution, the multi-stage telescopic function of the vibrating rod is realized, and the vibration depth and range can be adjusted according to actual needs, thereby improving the vibration efficiency and flexibility. At the same time, the counterweight assembly ensures the stability of the vibration of the device during operation.

[0009] Optionally, a plurality of limiting protrusions are axially spaced apart on the outer wall of the outer contact cylinder; a limiting groove is formed on the inner wall of the outer contact cylinder for the limiting protrusions on adjacent outer contact cylinders to slide; and the limiting groove is arranged along the length direction of the outer contact cylinder.

[0010] By adopting the above technical solution, the connection stability between the outer contact cylinders is enhanced, loosening or dislocation caused by vibration during the vibration process is prevented, and the overall reliability and service life of the device are improved.

[0011] Optionally, the inner rotating cylinder is rotationally connected to the corresponding outer contact cylinder via a connecting bearing.

[0012] By adopting the above technical solution, the friction resistance between the inner rotating cylinder and the outer contact cylinder is reduced, the transmission efficiency is improved, and at the same time, the wear and noise are reduced, and the service life of the device is extended.

[0013] Optionally, the weight assembly includes a plurality of weight plates and at least one weight bar; the weight plates are arranged on the outer wall corresponding to the end of the inner rotating cylinder close to the base, and the weight plates are fan-shaped; the weight bar is connected to the outer wall of the inner rotating cylinder farthest from the base, and the weight bar is arranged along the length direction of the inner rotating cylinder.

[0014] By adopting the above technical solution, the stability and balance of the device during operation are improved, the deviation or tilt caused by vibration is reduced, and the consistency of the vibration effect is ensured.

[0015] Optionally, each of the weight plates is provided with at least one weight rod, the weight rod extends along the length direction of the inner rotating cylinder and passes through adjacent weight plates, and the weight bar is provided with a receiving groove for inserting the weight rod.

[0016] By adopting the above technical solution, the integrity and stability of the counterweight assembly are enhanced, the counterweight sheet is prevented from falling off or shifting due to vibration during the vibration process, and the safety and reliability of the device are improved.

[0017] Optionally, the telescopic control assembly includes a plurality of threaded sleeves and a control screw; the control screw is coaxially rotatably connected to the inner rotating cylinder farthest from the base; a plurality of the threaded sleeves are coaxially rotatably connected to the corresponding remaining inner rotating cylinders; the control screw penetrates into adjacent inner rotating cylinders and is threadedly connected thereto; the threaded sleeves all penetrate into adjacent inner rotating cylinders and are threadedly connected thereto; the control screw rotates synchronously with the plurality of the threaded sleeves.

[0018] By adopting the above technical solution, the multi-stage telescopic adjustment of the vibrating rod is realized, and the vibration depth and range can be accurately controlled according to actual needs. At the same time, the stability and reliability of the telescopic control are ensured by the threaded connection method.

[0019] Optionally, a synchronization bar is provided on the outer wall of the threaded sleeve along the length direction, and a synchronization groove is provided on the inner wall of the threaded sleeve for the synchronization bar on the adjacent threaded sleeve to slide; the same synchronization groove is provided on the outer wall of the control screw.

[0020] By adopting the above technical solution, the synchronization and coordination between the components in the telescopic control assembly are ensured, and the accuracy and stability of the telescopic control are improved.

[0021] Optionally, a boss is provided along the axis at the middle of the inner wall of the inner rotating cylinder away from the base; and an adapter sleeve rotatably connected to the boss is provided at one end of the threaded sleeve away from the base.

[0022] By adopting the above technical solution, the transmission efficiency and stability of the telescopic control component are improved, and the wear and noise caused by friction are reduced.

[0023] Optionally, the inner rotating cylinder farthest from the base has an end column coaxially arranged at its end away from the base, and the end column contacts the outer cylinder to the outside; one end of the control screw coaxially passes through the end column to the outside and is provided with a hexagonal groove.

[0024] By adopting the above technical solution, a convenient telescopic control operation mode is provided, so that the operator can easily adjust the telescopic length of the vibrating rod, thereby improving work efficiency and convenience.

[0025] Optionally, the concrete vibrating device also includes an end cone head detachably connected to the end of the outer contact tube farthest from the base; a combination tube is coaxially arranged at the bottom of the end cone head, and an annular combination groove is provided on the end surface of the outer contact tube, the combination tube can be inserted into the combination groove, the combination groove is provided with an internal thread, and the combination tube is threadedly connected to the internal thread.

[0026] By adopting the above technical solution, the design of the end cone head enhances the vibrating effect of the vibrating rod on the concrete, improves the quality and efficiency of the vibration. At the same time, the detachable connection method facilitates replacement and maintenance, and improves the flexibility and service life of the device.

[0027] In summary, the present application includes at least one of the following beneficial effects:

[0028] 1. Multi-level telescopic and flexible adjustment. Through the design of telescopic control components and internal and external rotating cylinders, the multi-level telescopic and flexible adjustment functions of the vibrating rod are realized. The vibration depth and range can be accurately controlled according to actual needs, thereby improving the vibration efficiency and flexibility.

[0029] 2. Stability, reliability and durability: Through the coordination of the limiting protrusions and limiting grooves, the use of connecting bearings and the design of the counterweight assembly, the connection stability and overall reliability of the device are enhanced, the loosening or damage caused by vibration is reduced, and the service life of the device is extended.

[0030] 3. Through the hexagonal groove design of the control screw and the detachable end cone head, convenient telescopic control and replacement and maintenance methods are provided, so that the operator can easily adjust the telescopic length of the vibrator and replace damaged parts, improving work efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the cross-sectional structure of the vibrating rod of this embodiment;

[0032] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at point A;

[0033] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at B;

[0034] Figure 4 yes Figure 1 A further schematic diagram of the structure after the inner rotating cylinder is cut away;

[0035] Figure 5yes Figure 4 A schematic diagram of the enlarged structure at C;

[0036] Figure 6 yes Figure 4 A schematic diagram of the structure after further sectioning the threaded casing;

[0037] Figure 7 yes Figure 6 A schematic diagram of the structure at D of FIG.

[0038] Figure 8 It is a schematic diagram of the cross-sectional structure of the telescopic component from top view;

[0039] Fig. 9 This is a schematic diagram of the top view of the structure of an inner rotating cylinder (not a primary inner rotating cylinder);

[0040] Fig.10 It is a schematic diagram of the top view of the structure of the first-stage inner rotating cylinder.

[0041] Explanation of the reference numerals: 11, connecting tube; 12, transmission flexible shaft; 13, base; 21, primary outer contact cylinder; 211, second connecting groove; 22, secondary outer contact cylinder; 221, limiting protrusion; 222, limiting groove; 23, tertiary outer contact cylinder; 24, quaternary outer contact cylinder; 241, first connecting groove; 242, fixing hole; 243, combination groove; 25, sealing ring; 31, primary inner rotating cylinder; 311, first connecting bearing; 312, end column; 3121, hexagonal groove; 313, through groove; 314, ring groove; 32, secondary inner rotating cylinder; 321, primary boss; 33, tertiary inner Rotating cylinder; 331, secondary boss; 34, fourth-level inner rotating cylinder; 341, second connecting bearing; 41, primary threaded sleeve; 411, primary adapter sleeve; 412, secondary synchronization groove; 413, primary synchronization strip; 42, secondary threaded sleeve; 421, secondary adapter sleeve; 422, secondary synchronization strip; 43, control screw; 431, primary synchronization groove; 432, connecting ring; 44, locking ring; 51, primary counterweight plate; 52, secondary counterweight plate; 53, tertiary counterweight plate; 54, counterweight strip; 541, accommodating groove; 55, counterweight rod; 6, end cone head; 61, combination tube; 62, storage groove. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1 To Attachment Fig.10 This application is described in further detail.

[0043] The existing technology is not adaptable enough to concrete of different depths. That is, in shallow concrete, the vibrator needs to be suspended and lifted to a suitable height. At the same time, since most of the vibrator is exposed to the air, after the surface (the contact surface between the concrete layer and the air) contacts the vibrator, a large amount of concrete will splash, affecting the construction workers and the surrounding environment. When entering shallow layers such as corners or beam-column joints, the depth of the concrete layer changes suddenly, and a deeper probe is required. At this time, it is necessary to replace the appropriate vibrator.

[0044] Therefore, in order to make the vibrating rod adapt to concrete layers of different depths. The present application provides a concrete vibrating device, including a base 13 and a vibrating rod, the vibrating rod including a plurality of outer contact cylinders and a plurality of inner rotating cylinders. One end of one outer contact cylinder is connected to the base 13, and the remaining plurality of outer contact cylinders are sequentially nested in the outer contact cylinder. For the convenience of description, the present embodiment takes the four-stage outer contact cylinder 24 as an example for description, and the outer contact cylinder connected to the base 13 is set as the first-stage outer contact cylinder 21, and the rest are the second-stage outer contact cylinder 22, the third-stage outer contact cylinder 23 and the fourth-stage outer contact cylinder 24 in sequence. In other embodiments, more or fewer stages may be set, which is not limited here. Specifically, one end of the first-stage outer contact cylinder 21 is connected to the base 13, and the other end is through-through to form an opening, and the second-stage outer contact cylinder 22 is coaxially nested in the first-stage outer contact cylinder 21 through the opening. One end of the second-stage outer contact cylinder 22 can slide out of the first-stage outer contact cylinder 21, and the end is through-through to form an opening, and the third-stage outer contact cylinder 23 is coaxially nested therein. Similarly, the third-level outer contact cylinder 23 can pass through the second-level outer contact cylinder 22 and is provided with an opening, and the fourth-level outer contact cylinder 24 is nested in the third-level outer contact cylinder 23. The first to fourth-level outer contact cylinders are combined to form the outer shell of the vibrating rod. The number of the inner rotating cylinders corresponds to the number of the outer contact cylinders, and the inner rotating cylinders coaxially rotate in the corresponding outer contact cylinders. The several inner rotating cylinders are nested in sequence, one of which is rotatably connected to the fourth-level outer contact cylinder 24, and the inner rotating cylinder farthest from the fourth-level outer contact cylinder 24 is rotatably connected to the first-level outer contact cylinder 21. For the convenience of description, the inner rotating cylinder connected to the fourth-level outer contact cylinder 24 is the first-level inner rotating cylinder 31, and the one connected to the first-level outer contact cylinder 21 is the fourth-level inner rotating cylinder 34, and the rest are arranged in sequence. The diameter gradually decreases from the first-level inner rotating cylinder 31 to the fourth-level inner rotating cylinder 34. The concrete vibrating device also includes a telescopic control component, a counterweight component, a transmission component and a power source. The telescopic control component is arranged in the inner rotating cylinder to control the several inner rotating cylinders to approach or move away from each other. The transmission assembly includes a connecting tube 11 and a transmission flexible shaft 12, and the transmission flexible shaft 12 is coaxially rotatably connected in the connecting tube 11. The connecting tube 11 is fixedly connected to the outer contact cylinder, and the connecting tube 11 limits the rotation of the outer contact cylinder. One end of the transmission flexible shaft 12 is connected to the center of the inner rotating cylinder, and the other end is connected to the power source, so as to keep the outer contact cylinder from rotating while transmitting the rotational force of the power source to the inner rotating cylinder. Thereby driving the inner rotating cylinder to rotate. The counterweight assembly is arranged on the outside of the inner rotating cylinder to make the center of gravity of the inner rotating cylinder deviate from the axis, so that the centrifugal force generated during high-speed rotation is transmitted to the outer contact cylinder through the bearing, so that the outer contact cylinder produces circumferential vibration. Since the transmission assembly and the power source belong to the prior art, they will not be described here.

[0045] Specifically, the fourth-level external contact cylinder 24 is closed at one end away from the base 13. The outer walls of the second-level external contact cylinder 22, the third-level external contact cylinder 23 and the fourth-level external contact cylinder 24 at one end close to the base 13 are all provided with limiting protrusions 221, and a plurality of limiting protrusions 221 are arranged in a circumferential array. The inner walls of the first-level external contact cylinder 21, the second-level external contact cylinder 22 and the third-level external contact cylinder 23 are all provided with a plurality of limiting grooves 222 corresponding to the number of limiting protrusions 221. The limiting grooves 222 are provided along the length direction of the external contact cylinder, and the limiting protrusions 221 are slidably connected in the limiting grooves 222. The limiting protrusions 221 and the limiting grooves 222 cooperate to limit the separation of adjacent external contact cylinders and prevent a single external contact cylinder from rotating. This increases the overall stability during vibration.

[0046] Specifically, a first connection bearing 311 is provided on the outer circumference of one end of the first-stage inner rotating cylinder 31 away from the base 13, and a first connection groove 241 for mounting the first connection bearing 311 is provided on the inner wall of the fourth-stage outer contact cylinder 24. A second connection bearing 341 is provided on the outer circumference of one end of the fourth-stage rotating cylinder close to the base 13, and a second connection groove 211 for mounting the second connection shaft side is provided on the inner wall of the first-stage outer contact cylinder 21. In this way, the fourth-stage outer contact cylinder 24 is rotationally connected to the first-stage inner rotating cylinder 31, and the first-stage outer contact cylinder 21 is rotationally connected to the fourth-stage inner rotating cylinder 34.

[0047] Specifically, the weight assembly includes a plurality of weight plates and at least one weight bar 54. The weight plates are connected to the outer wall of one end of the corresponding inner contact cylinder close to the base 13. The weight plates are fan-shaped. For the convenience of description, the weight plates are divided into a first-level weight plate 51, a second-level weight plate 52 and a third-level weight plate 53. The first-level weight plate 51 is connected to the fourth-level inner rotating cylinder 34, the second-level weight plate 52 is connected to the third-level inner rotating cylinder 33, the third-level weight plate 53 is connected to the second-level inner rotating cylinder 32, and the weight bar 54 is connected to the first-level inner rotating cylinder 31 along the length direction of the first-level inner rotating cylinder 31.

[0048] Furthermore, in order to increase the stability of the connection between the plurality of inner rotating cylinders and prevent the plurality of inner rotating cylinders from rotating relative to each other during rotation, the rotation angles of the plurality of inner rotating cylinders should be the same. The weight assembly also includes a plurality of weight rods 55. The weight rods 55 are arranged perpendicular to the plane where the weight plate is located and are arranged along the length direction of the inner rotating cylinder. The weight rods 55 extend from the weight plate to the weight plate of the next level and penetrate the weight plate of the next level (since the structures of the other inner rotating cylinders other than the first-level inner rotating cylinder 31 are similar, only the diameter and the weight rod 55 and the weight distance are different, and only one is taken as a demonstration). That is, the weight rod 55 of the first-level weight plate 51 penetrates the second-level weight plate 52, and so on. The weight bar 54 is provided with a plurality of accommodating grooves 541 for accommodating a plurality of weight rods 55. A plurality of weight rods 55 can be arranged on a weight plate, and the number is not limited. At least one weight rod 55 is provided to serve as an eccentric gravity weight and to limit the rotation of the inner rotating cylinders. When a plurality of weight bars 55 are provided on the same weight plate, the number of weight bars 54 corresponds to the weight bars 55 , so as to accommodate the corresponding weight bars 55 through the accommodating grooves 541 when contracted.

[0049] Specifically, the telescopic control assembly includes a plurality of threaded sleeves and a control screw 43. The control screw 43 is coaxially connected to the first-level inner rotating cylinder 31. The end of the inner rotating cylinder away from the base 13 is closed. A through groove 313 is provided at the central axis position of the end of the first-level inner rotating cylinder 31 away from the base 13. One end of the control screw 43 is not provided with a thread, and the end is inserted into the through groove 313, and a connecting ring 432 is provided on the outer peripheral side. The first-level inner rotating cylinder 31 is provided with an annular groove 314 for the connecting ring 432 to rotate on the inner wall of the through groove 313. The portion of the control screw 43 provided with a thread extends along the axis of the first-level inner rotating cylinder 31 and passes out of the first-level inner rotating cylinder 31 in the direction of the base 13. For the convenience of description, the threaded sleeve rotating in the second-level inner rotating cylinder 32 is called the first-level threaded sleeve 41, and by analogy, the second-level threaded sleeve 42 is rotatably connected in the third-level inner rotating cylinder 33. The control screw 43 penetrates into the secondary inner rotating cylinder 32 and is threadedly connected to the secondary inner rotating cylinder 32. The primary threaded sleeve 41 is coaxially sleeved on the control screw 43, and the primary threaded sleeve 41 is rotatably connected to the secondary inner rotating cylinder 32 and rotates together with the control screw 43. The primary threaded sleeve 41 penetrates into the tertiary inner rotating cylinder 33 and is threadedly connected to the tertiary inner rotating cylinder 33. The secondary threaded sleeve 42 is coaxially sleeved on the primary threaded sleeve 41, and the secondary threaded sleeve is rotatably connected to the tertiary inner rotating cylinder 33 and rotates synchronously with the primary threaded sleeve 41. The secondary threaded sleeve 42 penetrates into the quaternary inner rotating cylinder 34 and is threadedly connected to the quaternary inner rotating cylinder 34.

[0050] Furthermore, in order to enable the threaded sleeve and the control screw 43 to rotate synchronously. The threaded sleeve is a hollow tubular structure, and a synchronization groove is provided on the outer wall of the threaded sleeve along the length direction, and the synchronization groove intrudes into the thread. The inner wall of the threaded sleeve is provided with a synchronization bar corresponding to the synchronization groove, and the synchronization bar is provided along the length direction, and the synchronization bar slides in the synchronization groove. The same synchronization groove is provided on the outer wall of the control screw 43. For the convenience of distinction, the synchronization groove provided on the control screw 43 is called the primary synchronization groove 431, and the synchronization groove provided on the primary threaded sleeve 41 is the secondary synchronization groove 412, and the secondary threaded sleeve 41 is not provided with a synchronization groove. The synchronization bar provided in the primary threaded sleeve 41 is the primary synchronization bar 413, and the secondary threaded sleeve 41 is provided with the secondary synchronization bar 422. The primary synchronization bar 413 slides relatively in the primary synchronization groove 431, and the secondary synchronization bar 422 slides relatively in the secondary synchronization groove 412. In this way, when the control screw 43 rotates, the primary threaded sleeve 41 can be pushed to rotate together through the cooperation of the primary synchronization bar 413 and the primary synchronization groove 431. Similarly, when the primary threaded sleeve 41 rotates, the secondary threaded sleeve 42 can be driven to rotate synchronously. In addition, the primary threaded sleeve 41 can slide relative to the length direction of the control screw 43, and the secondary threaded sleeve 42 can slide relative to the length direction of the primary threaded sleeve 41.

[0051] Furthermore, in order to realize the relative rotation between the threaded sleeve and the corresponding inner rotating cylinder. A boss is provided on the inner wall of one end of the inner rotating cylinder away from the base 13, protruding along the axial direction. An adapter sleeve wrapping the boss is provided at one end of the threaded sleeve away from the base 13. For the convenience of expression, the boss in the secondary inner rotating cylinder 32 is called the primary boss 321, and the third-level inner rotating cylinder 33 is the secondary boss 331, and the fourth-level inner rotating cylinder 34 is not provided with a boss. The adapter sleeve on the primary threaded sleeve 41 is the primary adapter sleeve 411, and the secondary threaded sleeve 42 is the secondary adapter sleeve 421. The control screw 43 coaxially passes through the primary boss 321 and is threadedly connected to the primary boss 321. The primary adapter sleeve 411 is rotatably connected to the primary boss 321 through the locking ring 44, and the two are coaxial. The secondary adapter sleeve 421 is also rotatably connected to the secondary boss 331 through the locking ring 44, and the two rotate coaxially.

[0052] Furthermore, in order to facilitate the operation of the control screw 43. The end of the first-stage inner rotating cylinder 31 away from the base 13 is coaxially provided with an end column 312, which penetrates the fourth-stage outer contact cylinder 24 to the outside, and the end column 312 is located in the outer wall extension surface of the fourth-stage outer contact cylinder 24. One end of the control screw 43 penetrates the first-stage inner rotating cylinder 31 to the outside, and is provided with a hexagonal groove 3121. The control screw 43 is controlled by a hexagonal screwdriver through the hexagonal groove 3121, so as to extend and retract several outer contact cylinders and the inner rotating cylinder. Note that since the first-stage inner rotating cylinder 31 and the fourth-stage outer contact cylinder 24 are rotatably connected, the fourth-stage inner rotating cylinder 34 and the first-stage outer contact cylinder 21 are rotatably connected, and the first-stage outer contact cylinder 21 is fixedly connected to the base 13, the first-stage inner rotating cylinder 31 can drive the fourth-stage outer contact cylinder 24 to move in the direction close to or away from the base 13, and at this time, the first-stage outer contact cylinder 21, the base 13 and the fourth-stage inner rotating cylinder 34 do not move.

[0053] Furthermore, in order to make the structure more stable when the control screw 43 is rotated, a fixing hole 242 is provided on the outer wall of the end of the fourth-stage outer contact cylinder 24 away from the base 13. The fixing hole 242 extends to the outer wall of the first-stage inner rotating cylinder 31, but does not penetrate. The fixing hole 242 is detachably connected with a fixing bolt, which can pass through the fourth-stage outer contact cylinder 24 through the fixing hole 242 and then enter the first-stage inner rotating cylinder 31. The fixing bolt and the fixing hole 242 cooperate to limit the rotation of the first-stage inner rotating cylinder 31, thereby facilitating the control of the control screw 43.

[0054] Furthermore, in order to improve the airtightness of the outer contact cylinder, the concrete vibrating device also includes an end cone head 6 detachably connected to the end of the outer contact cylinder farthest from the base 13. The end cone head 6 is a conical structure. A combination pipe 61 is coaxially arranged on the bottom circular surface of the end cone head 6. An annular combination groove 243 is provided on the outer surface of the fourth-level outer contact cylinder 24, and the combination pipe 61 can be inserted into the combination groove 243. The combination groove 243 is provided with an internal thread, and the combination pipe 61 is threadedly connected to the internal thread. A storage groove 62 is provided on the bottom inner wall of the end cone head 6 in the combination pipe 61, and the fixing bolt is temporarily received in the storage groove 62.

[0055] Furthermore, in order to clean the outer wall and maintain the sealing of the outer wall, a sealing ring 25 is provided at one end of the primary outer contact cylinder 21, the secondary outer contact cylinder 22 and the tertiary outer contact cylinder 23 away from the base 13. The sealing ring 25 is a coaxial annular structure of the outer contact cylinder, and the inner diameter of the sealing ring 25 is equal to the inner diameter of the outer contact cylinder. The sealing ring 25 is made of polyethylene or rubber.

[0056] The implementation principle of a concrete vibrating device in the embodiment of the present application is:

[0057] Remove the end cone head 6, operate the control screw 43 through the hexagonal groove 3121, the first-stage inner rotating cylinder 31 and the fourth-stage outer contact cylinder 24 are rotatably connected, the fourth-stage inner rotating cylinder 34 and the first-stage outer contact cylinder 21 are rotatably connected, and the first-stage outer contact cylinder 21 is fixedly connected to the base 13, so that the first-stage inner rotating cylinder 31 can drive the fourth-stage outer contact cylinder 24 to move toward or away from the base 13, thereby realizing the multi-stage extension and retraction of the vibrating rod, and the vibration depth and range can be adjusted according to actual needs, thereby improving the vibration efficiency and flexibility.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concrete vibrating device, characterized in that: It includes a power source, a transmission assembly, a base (13) and a vibrating rod; The transmission assembly comprises a connecting tube (11) and a transmission flexible shaft (12), wherein the connecting tube (11) is fixedly connected to the base (13), and one end of the transmission flexible shaft (12) is connected to the output end of the power source. The vibrating rod comprises a plurality of outer contact cylinders and a plurality of inner rotating cylinders; One end of one of the outer contact cylinders is connected to the base (13), and the other outer contact cylinders are coaxially nested in adjacent outer contact cylinders in sequence; a plurality of the inner rotating cylinders are rotatably connected inside the outer contact cylinders; one of the inner rotating cylinders is coaxially rotatably connected to the outer contact cylinder connected to the base (13), and the other inner rotating cylinders are coaxially nested in adjacent inner rotating cylinders in sequence, and the inner rotating cylinder farthest from the base (13) is coaxially rotatably connected to the outer contact cylinder farthest from the base (13); the other end of the transmission flexible shaft (12) passes through the base (13) and is connected to the center of the inner rotating cylinder; The concrete vibrating device further comprises a telescopic control component and a counterweight component; the telescopic control component is arranged in a plurality of the inner rotating cylinders for controlling the telescopic movement of the inner rotating cylinders; the counterweight component is arranged on the outer walls of a plurality of the inner rotating cylinders; the counterweight component comprises a plurality of counterweight plates and at least one counterweight bar (54); the counterweight plate is arranged on the outer wall of the inner rotating cylinder corresponding to one end thereof close to the base (13), and the counterweight plate is fan-shaped; the counterweight bar (54) is connected to the outer wall of the inner rotating cylinder farthest from the base (13), and the counterweight bar (54) is arranged along the length direction of the inner rotating cylinder; each of the counterweight plates is provided with at least one counterweight rod (55), and the counterweight rod (55) extends along the length direction of the inner rotating cylinder and penetrates the adjacent counterweight plates, and the counterweight bar (54) is provided with a receiving groove (541) for inserting the counterweight rod (55) therein.

2. A concrete vibrating device according to claim 1, characterized in that: The outer wall of the outer contact cylinder is provided with a plurality of limiting protrusions (221) at axial intervals; the inner wall of the outer contact cylinder is provided with limiting grooves (222) for the limiting protrusions (221) on adjacent outer contact cylinders to slide; the limiting grooves (222) are provided along the length direction of the outer contact cylinder.

3. A concrete vibrating device according to claim 1, characterized in that: The inner rotating cylinder is rotatably connected to the corresponding outer contact cylinder via a connecting bearing.

4. A concrete vibrating device according to claim 1, characterized in that: The telescopic control assembly comprises a plurality of threaded sleeves and a control screw (43); the control screw (43) is coaxially rotatably connected to the inner rotating cylinder farthest from the base (13); a plurality of the threaded sleeves are coaxially rotatably connected to the corresponding remaining inner rotating cylinders; the control screw (43) penetrates into adjacent inner rotating cylinders and is threadedly connected thereto; the threaded sleeves all penetrate into adjacent inner rotating cylinders and are threadedly connected thereto; the control screw (43) rotates synchronously with the plurality of the threaded sleeves.

5. A concrete vibrating device according to claim 4, characterized in that: The outer wall of the threaded sleeve is provided with a synchronization strip along the length direction, and the inner wall of the threaded sleeve is provided with a synchronization groove for the synchronization strip on the adjacent threaded sleeve to slide; the outer wall of the control screw (43) is provided with the same synchronization groove.

6. A concrete vibrating device according to claim 5, characterized in that: A boss is provided along the axis at the middle of the inner wall of the inner rotating cylinder away from the base (13); and an adapter sleeve rotatably connected to the boss is provided at one end of the threaded sleeve away from the base (13).

7. A concrete vibrating device according to claim 6, characterized in that: The inner rotating cylinder farthest from the base (13) has an end column (312) coaxially arranged at one end away from the base (13), and the end column (312) passes through the outer contact cylinder to the outside; one end of the control screw (43) coaxially passes through the end column (312) to the outside and is provided with a hexagonal groove (3121).

8. A concrete vibrating device according to claim 7, characterized in that: The concrete vibrating device further comprises an end cone head (6) detachably connected to the end of the outer contact cylinder farthest from the base (13); a combination tube (61) is coaxially arranged at the bottom of the end cone head (6); an annular combination groove (243) is provided on the surface of the end of the outer contact cylinder; the combination tube (61) can be inserted into the combination groove (243); the combination groove (243) is provided with an internal thread; the combination tube (61) is threadedly connected to the internal thread.

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