Concrete crack-free construction device and construction method

Abstract

The invention relates to the technical field of concrete construction devices, in particular to a concrete crack-free construction device and a construction method.The concrete crack-free construction device comprises a mounting frame and a vibrator, a chassis is arranged at the lower end of the mounting frame, a handrail is fixedly arranged on the mounting frame, and driving devices for assisting movement are arranged on the two sides of the mounting frame; the driving device is rotationally connected with the mounting frame, and an angle adjusting mechanism is arranged between the mounting frame and the driving device; a lifting groove is formed in the driving device, a lifting mechanism is arranged in the lifting groove, an output shaft of the lifting mechanism is fixedly connected with a mounting part, a plurality of rolling wheels are arranged on the mounting part, the construction device is conveniently moved by arranging the driving device, and the driving device is rotationally connected with the mounting frame, so that the driving device can be folded; and the angle adjusting mechanism is arranged to control the position of the driving device, so that the position of the driving device can be adjusted more conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of concrete construction devices, and in particular to a construction device and a construction method for concrete without cracks. Background Art

[0002] The existence of concrete cracks will cause varying degrees of harm to the safety, use function, durability and appearance of the structure. Cracks will cause the bearing capacity of the structure to decrease, especially in the tension area. The cracks may further expand, affecting the overall stability of the structure, causing problems such as water seepage and air leakage, affecting the use function of the building, such as reducing the waterproof, thermal insulation and other properties. Among them, uneven concrete pouring and insufficient vibration are one of the main reasons for the formation of gaps.

[0003] The flat plate vibrator can help the concrete flow and fill these gaps better through vibration, thereby improving the density and uniformity of the structure, reducing gaps and stratification, and enhancing the integrity of the bonding surface. In addition, through vibration, air and excess moisture in the concrete can be removed, the density of the concrete can be improved, and its compressive strength and durability can be enhanced. For example, Chinese patent announcement No. CN113503035A discloses "a concrete flat plate vibrator", which uses the vibration of the concrete vibrator to vibrate the flat plate to compact the concrete. In this process, the column rod in the assisting vibration mechanism moves up and down or swings forward and backward, the vertical spring is stretched or compressed, and the horizontal spring is compressed under the expansion and contraction and swinging action of the vibration rod, so that the assisting vibration mechanism not only stabilizes the vibration of the wide flat plate, but also does not interfere with the vibration action transmitted to the flat plate by the concrete vibrator;

[0004] However, in actual use, the flat plate vibrator itself is heavy and difficult to carry. If a mobile structure is installed on the flat plate vibrator, the mobile structure is easily blocked by cement, requiring frequent maintenance, which reduces practicality. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art, such as the flat plate vibrator itself is heavy, not easy to carry and move, and the installed mobile structure is easily blocked by cement, and to propose a construction device and construction method for concrete without cracks.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A construction device for concrete crack-free is designed, comprising a mounting frame and a vibrator, wherein a chassis is arranged at the lower end of the mounting frame, a handrail is fixedly arranged on the mounting frame, and driving devices for auxiliary movement are arranged on both sides of the mounting frame, the driving device is rotatably connected to the mounting frame, and an angle adjustment mechanism is arranged between the mounting frame and the driving device;

[0008] The driving device is provided with a lifting slot, a lifting mechanism is arranged in the lifting slot, an output shaft of the lifting mechanism is fixedly connected with a mounting part, and a plurality of rollers are arranged on the mounting part.

[0009] Furthermore, the angle adjustment mechanism includes a first connecting rod connected to the driving device, a second connecting rod is rotatably provided on the other end of the first connecting rod, and the other end of the second connecting rod is rotatably connected to the mounting frame.

[0010] Furthermore, the mounting frame and the driving device are both provided with grooves, the mounting frame is provided with a mounting groove connected with the groove, and a power structure matched with the second connecting rod is arranged in the mounting groove.

[0011] Furthermore, the power structure includes a first motor fixedly arranged in the mounting groove, a worm being fixedly arranged on the output shaft of the first motor, a rotating shaft being rotatably arranged on the mounting groove, the rotating shaft being fixedly connected to the second connecting rod, and a worm wheel meshingly connected to the worm being fixedly arranged on the rotating shaft.

[0012] Furthermore, the lifting mechanism includes a connecting rod mechanism composed of cross support rods and a support seat for installing the connecting rod mechanism, a moving platform is slidably arranged on the support seat, and the moving platform is dynamically connected to the connecting rod mechanism.

[0013] Furthermore, a second motor is fixedly arranged in the lifting slot, a screw rod is fixedly arranged on the output shaft of the second motor, and the screw rod is dynamically connected to the moving platform.

[0014] Furthermore, the mounting portion includes two mounting plates, a buffer spring is arranged between the two mounting plates, the roller is arranged on the mounting plate located at the bottom, and the support seat is fixedly arranged on the mounting plate located at the top.

[0015] Furthermore, a guide rod is fixedly provided on the mounting plate located at the bottom, and the guide rod passes through the mounting plate located at the top, and a limit plate is fixedly provided on the upper end of the guide rod.

[0016] Furthermore, the mounting frame includes a support plate, a plurality of connecting columns are fixedly arranged between the support plate and the chassis, a transmission part is fixedly arranged between the support plate and the chassis, and the vibrator is fixedly arranged on the support plate.

[0017] The present invention also provides a method for constructing concrete without cracks, comprising the above-mentioned concrete without cracks construction device, and further comprising the following steps:

[0018] S1. Connect the construction equipment to an external power source, and place the chassis steadily on the concrete surface that needs to be vibrated, so that it contacts the concrete surface;

[0019] S2. Start the construction equipment. During the vibration process, the construction equipment should be moved slowly to cover the entire working surface and avoid staying in the same position for a long time;

[0020] S3. For places that are difficult to vibrate, such as corners or mold edges, the vibration time should be appropriately extended to ensure that the concrete is dense. When slurry appears on the surface of the concrete and no more bubbles appear, the vibration can be stopped.

[0021] The invention provides a concrete crack-free construction device and construction method, which have the following beneficial effects:

[0022] In the present invention, the construction device is conveniently moved by providing a driving device, and the driving device is rotatably connected to the mounting frame, so that the driving device can be folded, and the position of the driving device is controlled by providing an angle adjustment mechanism, so that the position of the driving device can be adjusted more conveniently;

[0023] Secondly, in the present invention, a lifting mechanism is provided in the driving device to control the position of the mounting plate and the roller, so that the mounting plate and the roller are pushed out and contacted with the ground, thereby separating the chassis from the ground and facilitating the movement of the construction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a concrete crack-free construction device proposed by the present invention;

[0025] Figure 2 It is a structural schematic diagram of the driving device of the present invention;

[0026] Figure 3 It is a schematic diagram of the enlarged structure of the A area of ​​the present invention;

[0027] Figure 4 It is a structural schematic diagram of the connecting rod mechanism of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the guide rod of the present invention;

[0029] Figure 6 It is a schematic structural diagram of the buffer spring of the present invention.

[0030] In the figure: 1. mounting frame; 11. support plate; 12. connecting column; 13. transmission part; 2. vibrator; 3. chassis; 4. armrest; 5. driving device; 51. lifting slot; 6. angle adjustment mechanism; 61. first connecting rod; 62. second connecting rod; 63. mounting slot; 64. power structure; 641. first motor; 642. worm; 643. rotating shaft; 644. worm wheel; 7. lifting mechanism; 71. connecting rod mechanism; 72. support seat; 73. moving platform; 74. second motor; 75. screw; 8. mounting part; 81. mounting plate; 82. buffer spring; 83. guide rod; 84. limit plate; 9. roller. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-6 A construction device for concrete crack-free includes a mounting frame 1 and a vibrator 2. A chassis 3 is provided at the lower end of the mounting frame 1. A handrail 4 is fixedly provided on the mounting frame 1. A driving device 5 for auxiliary movement is provided on both sides of the mounting frame 1. The driving device 5 is rotatably connected to the mounting frame 1. An angle adjustment mechanism 6 is provided between the mounting frame 1 and the driving device 5.

[0033] The driving device 5 is provided with a lifting slot 51 , in which a lifting mechanism 7 is arranged. The output shaft of the lifting mechanism 7 is fixedly connected with a mounting portion 8 , and a plurality of rollers 9 are arranged on the mounting portion 8 .

[0034] In the present invention, the driving device 5 is provided to facilitate the movement of the construction device, and the position of the mounting part 8 and the roller 9 is controlled by the lifting mechanism 7, so that the mounting part 8 and the roller 9 are pushed out and contacted with the ground, thereby separating the chassis 3 from the ground, which facilitates the movement of the construction device. The driving device 5 is rotatably connected to the mounting frame 1, and the driving device 5 can be folded so that the position of the driving device 5 is consistent with that of the mounting frame 1. The position of the driving device 5 is controlled by providing an angle adjustment mechanism 6, which makes it more convenient to adjust the angle and position of the driving device 5.

[0035] Furthermore, in this embodiment, the angle adjustment mechanism 6 includes a first connecting rod 61 connected to the driving device 5, and the other end of the first connecting rod 61 is rotatably provided with a second connecting rod 62, and the other end of the second connecting rod 62 is rotatably connected to the mounting frame 1. When the angle between the first connecting rod 61 and the second connecting rod 62 increases, the driving device 5 is propped up to be consistent with the position of the mounting frame 1 and separated from the ground, thereby preventing the lifting groove 51 from being blocked by cement.

[0036] In this embodiment, grooves are provided on the mounting frame 1 and the driving device 5. The mounting frame 1 is provided with a mounting groove 63 connected to the groove. A power structure 64 that cooperates with the second connecting rod 62 is provided in the mounting groove 63. The second connecting rod 62 is driven to rotate by the power structure 64, so that the angle between the second connecting rod 62 and the first connecting rod 61 is increased, thereby lifting the driving device 5 and rotating it to separate it from the ground.

[0037] Furthermore, in this embodiment, the power structure 64 includes a first motor 641 fixedly arranged in the mounting groove 63, a worm 642 is fixedly arranged on the output shaft of the first motor 641, a rotating shaft 643 is rotatably arranged on the mounting groove 63, the rotating shaft 643 is fixedly connected to the second connecting rod 62, and a worm wheel 644 meshingly connected to the worm 642 is fixedly arranged on the rotating shaft 643. The worm 642 is driven to rotate by the first motor 641, thereby driving the worm wheel 644 and the rotating shaft 643 to rotate, providing power for the second connecting rod 62 to rotate, thereby changing the angle between the second connecting rod 62 and the first connecting rod 61, and the worm gear transmission has self-locking property, which effectively prevents the driving device 5 from falling.

[0038] It should be noted that, in the present embodiment, the lifting mechanism 7 includes a connecting rod mechanism 71 composed of cross support rods and a support seat 72 on which the connecting rod mechanism 71 is installed. A moving platform 73 is slidably arranged on the support seat 72. The moving platform 73 is power-connected to the connecting rod mechanism 71. The connecting rod mechanism 71 can be controlled by controlling the position of the moving platform 73. The connecting rod mechanism 71 is preferably two and symmetrically arranged along the central axis of the moving platform 73. The connecting rod mechanism 71 is a cross scissors-type structure.

[0039] In this embodiment, a second motor 74 is fixedly installed in the lifting groove 51, and a screw rod 75 is fixedly installed on the output shaft of the second motor 74. The screw rod 75 is power-connected to the moving platform 73. The screw rod 75 is controlled to rotate by the second motor 74, and the screw rod 75 drives the moving platform 73 to move, thereby controlling the position of the connecting rod mechanism 71 and the mounting part 8, so that the roller of the mounting part 8 contacts the ground to lift the construction device.

[0040] Furthermore, in this embodiment, the mounting portion 8 includes two mounting plates 81, a buffer spring 82 is arranged between the two mounting plates 81, the roller 9 is arranged on the mounting plate 81 located at the bottom, and the support seat 72 is fixedly arranged on the mounting plate 81 located at the top. By arranging the buffer spring 82 to absorb the impact received by the roller 9, the roller 9 can be moved upward to a certain extent for buffering, so that the construction device can be transported and moved on an uneven construction site.

[0041] In this embodiment, a guide rod 83 is fixedly provided on the mounting plate 81 located at the bottom, and the guide rod 83 passes through the mounting plate 81 located at the top. A limiting plate 84 is fixedly provided on the upper end of the guide rod 83. The mounting plate 81 is guided and limited by the guide rod 83, and the mounting plate 81 is prevented from falling off by the limiting plate 84.

[0042] In more detail, in this embodiment, the mounting frame 1 includes a support plate 11, a plurality of connecting columns 12 are fixedly arranged between the support plate 11 and the chassis 3, a transmission part 13 is fixedly arranged between the support plate 11 and the chassis 3, and the vibration machine 2 is fixedly arranged on the support plate 11, and the vibration generated by the vibration machine 2 is transmitted to the chassis 3 through the connecting columns 12 and the transmission part 13.

[0043] The present invention also provides a method for constructing concrete without cracks, comprising the above-mentioned concrete without cracks construction device, and further comprising the following steps:

[0044] S1. Connect the construction equipment to an external power source and place the chassis 3 stably on the concrete surface that needs to be vibrated so that it contacts the concrete surface;

[0045] S2. Start the construction equipment. During the vibration process, the construction equipment should be moved slowly to cover the entire working surface and avoid staying in the same position for a long time;

[0046] S3. For places that are difficult to vibrate, such as corners or mold edges, the vibration time should be appropriately extended to ensure that the concrete is dense. When slurry appears on the surface of the concrete and no more bubbles appear, the vibration can be stopped.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A construction device for concrete crack-free, comprising a mounting frame (1) and a vibrator (2), characterized in that: A chassis (3) is provided at the lower end of the mounting frame (1); a handrail (4) is fixedly provided on the mounting frame (1); driving devices (5) for assisting movement are provided on both sides of the mounting frame (1); the driving devices (5) are rotatably connected to the mounting frame (1); and an angle adjustment mechanism (6) is provided between the mounting frame (1) and the driving devices (5); The driving device (5) is provided with a lifting groove (51), a lifting mechanism (7) is arranged in the lifting groove (51), an output shaft of the lifting mechanism (7) is fixedly connected with a mounting portion (8), and a plurality of rollers (9) are arranged on the mounting portion (8).

2. A construction device for concrete crack-free according to claim 1, characterized in that: The angle adjustment mechanism (6) comprises a first connecting rod (61) connected to the driving device (5); the other end of the first connecting rod (61) is rotatably provided with a second connecting rod (62); the other end of the second connecting rod (62) is rotatably connected to the mounting frame (1).

3. A construction device for concrete without cracks according to claim 2, characterized in that: The mounting frame (1) and the driving device (5) are both provided with grooves, the mounting frame (1) is provided with a mounting groove (63) connected to the groove, and a power structure (64) matching with the second connecting rod (62) is arranged in the mounting groove (63).

4. A construction device for concrete crack-free according to claim 3, characterized in that: The power structure (64) includes a first motor (641) fixedly arranged in the mounting groove (63); a worm (642) is fixedly arranged on the output shaft of the first motor (641); a rotating shaft (643) is rotatably arranged on the mounting groove (63); the rotating shaft (643) is fixedly connected to the second connecting rod (62); and a worm wheel (644) meshingly connected to the worm (642) is fixedly arranged on the rotating shaft (643).

5. A construction device for concrete crack-free according to claim 1, characterized in that: The lifting mechanism (7) comprises a connecting rod mechanism (71) composed of cross supporting rods and a support seat (72) for mounting the connecting rod mechanism (71); a moving platform (73) is slidably arranged on the support seat (72); and the moving platform (73) is dynamically connected to the connecting rod mechanism (71).

6. A construction device for concrete crack-free according to claim 5, characterized in that: A second motor (74) is fixedly arranged in the lifting slot (51), and a screw rod (75) is fixedly arranged on the output shaft of the second motor (74), and the screw rod (75) is dynamically connected to the moving platform (73).

7. A construction device for concrete without cracks according to claim 5, characterized in that: The mounting portion (8) comprises two mounting plates (81), a buffer spring (82) is arranged between the two mounting plates (81), the roller (9) is arranged on the mounting plate (81) located at the bottom, and the support seat (72) is fixedly arranged on the mounting plate (81) located at the top.

8. A construction device for concrete without cracks according to claim 7, characterized in that: A guide rod (83) is fixedly arranged on the mounting plate (81) located at the bottom, and the guide rod (83) passes through the mounting plate (81) located at the top. A limit plate (84) is fixedly arranged on the upper end of the guide rod (83).

9. A construction device for concrete crack-free according to claim 1, characterized in that: The mounting frame (1) comprises a support plate (11), a plurality of connecting columns (12) are fixedly arranged between the support plate (11) and the chassis (3), a transmission part (13) is fixedly arranged between the support plate (11) and the chassis (3), and the vibration machine (2) is fixedly arranged on the support plate (11).

10. A method for constructing concrete without cracks, comprising the device for constructing concrete without cracks as claimed in any one of claims 1 to 9, characterized in that: The following steps are also included: S1. Connect the construction equipment to an external power source and place the chassis (3) stably on the concrete surface that needs to be vibrated so that it contacts the concrete surface; S2. Start the construction equipment. During the vibration process, the construction equipment should be moved slowly to cover the entire working surface and avoid staying in the same position for a long time; S3. For places that are difficult to vibrate, such as corners or mold edges, the vibration time should be appropriately extended to ensure that the concrete is dense. When slurry appears on the surface of the concrete and no more bubbles appear, the vibration can be stopped.

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