Concrete vibrator

Abstract

The utility model discloses a concrete vibrator which comprises a supporting plate, buffering air bags are fixedly connected to the four corners of the top of the supporting plate, a supporting plate is fixedly connected to the tops of the buffering air bags, a motor is arranged at the top of the supporting plate, the output end of the motor is connected with a flexible shaft, and the outer surface of the flexible shaft is sleeved with a protection pipe. According to the concrete vibrator, the fixing ring and the compression spring are arranged in a matched mode, by means of the elasticity and rebounding capacity of the compression spring, the buffering effect on the arm of the human body is achieved, vibration transmission is reduced, the vibration influence on the arm of the human body is reduced, the discomfort of the human body in the operation process is reduced, and the occurrence of arm vibration diseases is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete vibration technology field, concretely is a kind of concrete vibrator. BACKGROUND

[0002] There are often a large number of voids and bubbles inside the concrete after pouring, which will seriously affect the strength, durability and appearance quality of the concrete structure if not eliminated, so it is necessary to ensure the compaction of the concrete after pouring.

[0003] Usually, a concrete vibrator is used to vibrate the concrete after pouring. The concrete vibrator is mainly divided into internal vibrator and external vibrator. The internal vibrator is usually an insertion type vibrator rod, which is inserted into the concrete and uses high-frequency vibration to make the concrete particles extrude and fill the voids. During operation, the working principle of the vibrator rod is based on high-frequency strong vibration, so it will produce strong vibration with large amplitude during operation. During operation, the vibrator rod needs to be held for a long time and inserted accurately into the concrete. The arm is in close contact with the vibrator rod throughout the process, and there is no buffer to withstand the high-amplitude strong vibration from the vibrator rod. Long-term use can cause arm vibration disease. SUMMARY

[0004] In order to overcome the defects in the prior art, the utility model provides a concrete vibrator capable of reducing the influence on human arm vibration.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a concrete vibrator, including support plate, four corners of the top of the support plate are all fixedly connected with buffer air bag, the top of the buffer air bag is fixedly connected with supporting plate, the top of the supporting plate is provided with motor, the output end of the motor is connected with flexible shaft, the outer surface of the flexible shaft is sleeved with protective tube, the other end of the protective tube is fixedly connected with protective cover, the outer wall of the protective cover is threadedly connected with protective shell, the flexible shaft is fixedly connected with support frame at one end of the protective tube, the inner side wall of the support frame is detachably connected with counterweight, the outer surface of the protective tube is detachably connected with fixing ring, the both sides of the outer surface of the fixing ring are all fixedly connected with compression spring, the other end of the compression spring is fixedly connected with handle.

[0006] Further, the both sides of the bottom of the supporting plate are connected with handle through bolt, the outer surface of the handle is sleeved with antiskid sleeve.

[0007] Further, one side of the top of the supporting plate is provided with clamping groove, the inner wall of the clamping groove is detachably connected with fixing seat, one side of the outer surface of the fixing seat is connected with one end of the protective tube through bolt.

[0008] Further, the four corners of the top of the fixed seat are provided with fastening bolts, one end of the fastening bolts penetrating into the fixed seat abuts against the top of the supporting plate, so that the fixed seat is fastened and connected to the top of the supporting plate.

[0009] Further, a bearing is fixedly installed at the middle part of the outer wall of the fixed seat, and the inner ring of the bearing is in interference fit with the outer surface of the flexible shaft.

[0010] Further, the outer surface of the counterweight is provided with fixed bolts at both ends, and one end of the fixed bolts penetrating out of the counterweight is in threaded connection with the inner side wall of the support frame.

[0011] Further, the top of the fixed ring is provided with a fastening rod in threaded penetration, one end of the fastening rod penetrating into the fixed ring abuts against the outer wall of the protective tube, so that the fixed ring is fastened and connected to the surface of the protective tube.

[0012] The utility model provides a concrete vibrator, has the following beneficial effects:

[0013] 1. Through the cooperation of the fixed ring and the compression spring, the elasticity and the resilience of the compression spring are used to buffer the human arm, reduce vibration transmission, reduce the influence on the human arm, reduce the discomfort of the human body during operation, reduce the occurrence of arm vibration disease, through the setting of the air bag, the vibration transmission generated by the motor during operation is reduced, so the resonance of the supporting plate is reduced, and the noise caused by resonance is effectively reduced.

[0014] 2. Through the detachable setting of the counterweight, the number and position of the counterweight can be flexibly adjusted according to the working conditions, the overall gravity center distribution of the vibrator is changed, the vibrator is more stable during operation, and the vibrator is especially suitable for different slump, different thickness of concrete vibration scene, ensures that the vibration effect is uniform, and improves the concrete vibration quality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a supporting plate and motor installation structure schematic view of the utility model;

[0017] Figure 3 It is a fixed seat and protective tube installation structure schematic view of the utility model;

[0018] Figure 4 It is a protective shell explosion structure schematic view of the utility model;

[0019] Figure 5 It is a counterweight installation structure schematic view of the utility model;

[0020] Figure 6The utility model discloses a handle mounting structure schematic view.

[0021] In the figure: 1, support plate, 2, buffer air bag, 3, supporting plate, 4, motor, 5, handle, 6, flexible shaft, 7, clamping groove, 8, fixed seat, 9, fastening bolt, 10, protection pipe, 11, protective cover, 12, protective shell, 13, support frame, 14, counterweight, 15, fixed bolt, 16, fixed ring, 17, fastening rod, 18, compression spring, 19, handle, 20, bearing. DETAILED DESCRIPTION

[0022] The technical scheme in the utility model embodiment will be described clearly and completely below with reference to the accompanying drawings in the utility model embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0023] The utility model embodiment provides a kind of concrete vibrator, which is applied to the scene of concrete pouring and then vibrating filling, in the embodiment, the structure of vibrator is improved, it has the advantages of high comfort and good applicability, thereby reducing the discomfort of human body in use process.

[0024] Reference Figures 1 to 6 , the concrete vibrator of the embodiment includes support plate 1, the four corners of the top of support plate 1 are fixedly connected with buffer air bag 2, the top of buffer air bag 2 is fixedly connected with supporting plate 3, the top of supporting plate 3 is detachably connected with motor 4 by bolt, the output end of motor 4 is connected with flexible shaft 6 by coupling, the outer surface of flexible shaft 6 is sleeved with protection pipe 10, the other end of protection pipe 10 is fixedly connected with protective cover 11, the outer wall of protective cover 11 is threadedly connected with protective shell 12, one end of flexible shaft 6, which is located at protective cover 11 and is connected with support frame 13, is connected with support frame 13, the inner side wall of support frame 13 is detachably connected with counterweight 14, the outer surface of protection pipe 10 is detachably connected with fixed ring 16, the two sides of the outer surface of fixed ring 16 are fixedly connected with compression spring 18, the other end of compression spring 18 is fixedly connected with handle 19.

[0025] In this embodiment, the support plate 1 is the basic support component of the entire vibrator, bearing the buffer air bag 2, the supporting plate 3 and other auxiliary structures above, providing a stable mounting platform for each component, ensuring the overall structure of the vibrator is stable and reliable during operation, the buffer air bag 2 is located at the top four corners of the support plate 1, with good elastic buffer performance, when the motor 4 operates and generates vibration, the elastic deformation of the air bag absorbs and disperses the vibration energy, effectively prevents the vibration from being conducted to the support plate 1 in a large area, avoids the resonance of the support plate 1, and further reduces the noise generated by resonance, at the same time, reduces the vibration amplitude transmitted to the operator's arm, protects the operator from high-intensity vibration damage, improves the operation comfort, the supporting plate 3 is reliably connected with the motor 4 through bolts on one hand, providing a stable mounting base for the motor 4, ensuring the smooth operation of the motor 4, on the other hand, the top clamping groove 7 is used to install the fixing seat 8, and the bottom two sides are connected with the handle 5, which is convenient for carrying the entire vibrator, and cooperates with each component to play the overall function, the motor 4 is the power source, which rotates at high speed after being powered on, and transmits power to the flexible shaft 6 through the coupling transmission, drives the flexible shaft 6 and the vibrating components connected at the end of the flexible shaft 6 to generate high-frequency vibration, provides the required energy for concrete vibrating operation, the protective tube 10 is sleeved on the outer surface of the flexible shaft 6, which plays a protective role for the flexible shaft 6, avoids damage caused by collision and friction with external objects during vibrating process, prolongs the service life of the flexible shaft 6, at the same time, provides a mounting base for other components such as the fixing ring 16 and the handle 19, the protective cover 11 is threadedly connected with the protective shell 12, which plays a protective role for the end of the flexible shaft 6 penetrating out of the protective tube 10 and the related vibrating components, prevents concrete, sundries and other objects from entering the inside to damage the flexible shaft 6 or affect the vibrating effect, ensures the smooth vibrating operation, the protective shell 12 further strengthens the protection of the end of the flexible shaft 6 and the internal structure, closes the protection, blocks the interference of external adverse factors, the support frame 13 provides an installation carrier for the counterweight 14, by changing the installation number and position of the counterweight 14 on the inner side wall of the support frame 13, the overall center of gravity of the vibrator can be adjusted, which adapts to different working conditions, ensures stable and efficient vibrating process, the operator can flexibly increase or decrease the number or adjust the position of the counterweight 14 according to the actual working conditions such as the slump and thickness of concrete, optimizes the center of gravity distribution of the vibrator, makes it more stable during vibrating, ensures uniform vibrating effect, and improves the quality of concrete vibrating, when the operator holds the handle 19, the elasticity of the handle 19 provides a buffer for the arm, further reduces the vibration transmitted from the protective tube 10, reduces the burden on the arm, and improves the operation comfort and convenience.

[0026] Referring to Figure 1 , Figure 2 and Figure 3In the embodiment, the two sides of the bottom of the supporting plate 3 are connected with the handles 5 through bolts, and the outer surfaces of the handles 5 are sleeved with anti-skid sleeves. Through the setting of the handles 5, the operator can conveniently grasp, and the position adjustment of the vibrator during the movement, carrying and operation is facilitated. The anti-skid sleeves sleeved on the outer surfaces can increase the friction between the hands and the handles 5, prevent the hands from slipping due to vibration or sweating during the operation, and ensure the operation safety.

[0027] Referring to Figure 1 , Figure 2 and Figure 3 , a clamping groove 7 is formed on one side of the top of the supporting plate 3, and a fixing seat 8 is detachably connected to the inner wall of the clamping groove 7. One side of the outer surface of the fixing seat 8 is connected to one end of a protective pipe 10 through a bolt. The clamping groove 7 and the fixing seat 8 are used in cooperation. Through the limiting of the clamping groove 7 and the embedding of the fixing seat 8, the accurate installation and positioning of the fixing seat 8 on the supporting plate 3 are realized, the installation precision and stability of the protective pipe 10 and the soft shaft 6 and other components connected thereto are ensured, the fastening bolts 9 at the four corners of the top of the fixing seat 8 penetrate into the top of the supporting plate 3, the fastening connection with the supporting plate 3 is realized, and the overall structure is protected. The inner ring of the bearing 20 installed in the middle portion is in interference fit with the outer surface of the soft shaft 6. The soft shaft 6 is supported, the coaxiality during the rotation of the soft shaft 6 is ensured, the friction resistance during the rotation of the soft shaft 6 is reduced, and the power transmission efficiency is improved.

[0028] In the embodiment, the four corners of the top of the fixing seat 8 are threadedly provided with the fastening bolts 9. One end of the fastening bolt 9 penetrates into the fixing seat 8 and abuts against the top of the supporting plate 3, so that the fixing seat 8 is fastened and connected to the top of the supporting plate 3. The fastening bolt 9 is used to firmly fix the fixing seat 8 on the supporting plate 3, prevent the fixing seat 8 from loosening due to vibration during the operation of the vibrator, ensure the installation stability of the soft shaft 6, the protective pipe 10 and other related components, and maintain the normal operation of the vibrator.

[0029] Referring to Figure 3 In the embodiment, the bearing 20 is fixedly installed on the middle portion of the outer wall of the fixing seat 8. The inner ring of the bearing 20 is in interference fit with the outer surface of the soft shaft 6. The bearing 20 is installed on the middle portion of the outer wall of the fixing seat 8, and the inner ring is in interference fit with the soft shaft 6. The soft shaft 6 is supported and centered, the stability of the soft shaft 6 during the high-speed rotation is ensured, the friction is reduced, the energy loss is reduced, and the overall performance of the vibrator is improved.

[0030] Referring to Figure 4 In the embodiment, the two ends of the outer surface of the counterweight 14 are threadedly provided with the fixing bolts 15. One end of the fixing bolt 15 penetrating out of the counterweight 14 is threadedly connected to the inner side wall of the support frame 13. The fixing bolt 15 is used to firmly fix the counterweight 14 on the support frame 13, prevent the counterweight 14 from being displaced or falling off due to vibration during the vibration process, ensure the stability after the counterweight adjustment, and ensure the safety and reliability of the vibration operation.

[0031] Referring to Figure 6 In the embodiment, the top of the fixing ring 16 is threaded with a fastening rod 17, one end of the fastening rod 17 is inserted into the outer wall of the protective pipe 10, so that the fixing ring 16 is fastened to the surface of the protective pipe 10, the fastening rod 17 is threaded into the top of the fixing ring 16 and is tightly inserted into the outer wall of the protective pipe 10, so that the fixing ring 16 is tightly fixed on the protective pipe 10, avoiding loosening and displacement of the fixing ring 16 during use, and providing stable support for the compression spring 18 and the handle 19 connected thereto.

[0032] When the concrete vibrator of the embodiment is applied, firstly, according to the working conditions of the concrete to be constructed, such as slump, thickness and other factors, a proper number and weight of the counterweight blocks 14 are selected, the counterweight blocks 14 are placed on the inner side wall of the support frame 13, the fixing bolts 15 are threaded into the outer surface of the counterweight blocks 14 from both ends, are threaded out and are connected with the inner side wall of the support frame 13, the fixing bolts 15 are tightened, the counterweight blocks 14 are ensured to be stable on the support frame 13, the overall gravity center distribution of the vibrator is adjusted to adapt to different vibration requirements, and then the protective cover 11 and the protective shell 12 are installed and fixed; then, the fixing ring 16 is sleeved on the outer surface of the protective pipe 10, the fastening rod 17 threaded into the top of the fixing ring 16 is inserted into the outer wall of the protective pipe 10, so that the fixing ring 16 is fastened to the surface of the protective pipe 10, the installation of the fixing ring 16 is ensured to be firm and not loosened, the operator can hold the handle 19 to operate, the insertion angle of the vibrator is preliminarily adjusted according to the thickness of the concrete pouring, the layout of the steel bars and other site conditions; after the angle is adjusted, the power of the motor 4 is turned on, the motor 4 starts to operate and drives the flexible shaft 6 to rotate at high speed through the coupling, the support frame 13 and the vibration components connected thereto are driven by the flexible shaft 6 to vibrate at high frequency, at this time, the operator slowly inserts the vibration components of the vibrator into the concrete, the insertion depth is controlled according to experience and site requirements, the vibrator plays a vibration role in the concrete, the concrete particles are extruded and filled to fill the gaps, during the vibration process, the operator continuously pays attention to the vibration effect, whether the ideal vibration state is reached is judged by observing the bubble escaping condition of the concrete surface, listening to the vibration sound change and other ways, at the same time, the position, angle and insertion depth of the vibrator are fine adjusted according to the actual situation, so that the vibration of the whole concrete pouring area is ensured to be uniform; after the vibration is completed, the power of the motor 4 is turned off, the vibrator is slowly pulled out of the concrete, and the concrete and other sundries adhered to the surface of the vibrator are cleaned.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A concrete vibrator comprising a support plate (1), characterized in that: The four corners of the top of the support plate (1) are fixedly connected with buffer air bags (2), the top of the buffer air bag (2) is fixedly connected with a supporting plate (3), the top of the supporting plate (3) is provided with a motor (4), the output end of the motor (4) is connected with a flexible shaft (6), the outer surface of the flexible shaft (6) is sleeved with a protective tube (10), the other end of the protective tube (10) is fixedly connected with a protective cover (11), the outer wall of the protective cover (11) is threadedly connected with a protective shell (12), the flexible shaft (6) is located at one end of the protective cover (11) and is fixedly connected with a support frame (13), the inner side wall of the support frame (13) is detachably connected with a counterweight (14), the outer surface of the protective tube (10) is detachably connected with a fixing ring (16), the outer surface of the fixing ring (16) is fixedly connected with compression springs (18) on both sides, the other end of the compression spring (18) is fixedly connected with a handle rod (19).

2. The concrete vibrator of claim 1, wherein: The two sides of the bottom of the supporting plate (3) are connected with handles (5) through bolts, the outer surface of the handle (5) is sleeved with a non-slip sleeve.

3. The concrete vibrator of claim 1, wherein: One side of the top of the supporting plate (3) is provided with a clamping groove (7), the inner wall of the clamping groove (7) is detachably connected with a fixing seat (8), one side of the outer surface of the fixing seat (8) is connected with one end of the protective tube (10) through a bolt.

4. The concrete vibrator of claim 3, wherein: The four corners of the top of the fixing seat (8) are threadedly provided with fastening bolts (9), one end of the fastening bolt (9) penetrating the fixing seat (8) abuts against the top of the supporting plate (3), so that the fixing seat (8) is tightly connected to the top of the supporting plate (3).

5. The concrete vibrator of claim 4, wherein: The outer wall of the fixing seat (8) is fixedly provided with a bearing (20) in the middle, the inner ring of the bearing (20) is interference-fitted with the outer surface of the flexible shaft (6).

6. The concrete vibrator of claim 1, wherein: The outer surface of the counterweight (14) is threadedly provided with a fixing bolt (15) at both ends, one end of the fixing bolt (15) penetrating the counterweight (14) is threadedly connected with the inner side wall of the support frame (13).

7. The concrete vibrator of claim 1, wherein: The top of the fixing ring (16) is threadedly provided with a fastening rod (17), one end of the fastening rod (17) penetrating the fixing ring (16) abuts against the outer wall of the protective tube (10), so that the fixing ring (16) is tightly connected to the surface of the protective tube (10).

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