Slotting and concrete cutting electric tool capable of protecting steel bars

Abstract

The utility model relates to the technical field of constructional engineering, and provides a grooving concrete cutting motor tool capable of protecting steel bars, which comprises a motor, the output end of the motor drives a saw blade to rotate, and the saw blade is used for grooving concrete; the shell covers the outer sides of the motor and the saw blade, and the saw blade is movably arranged relative to the shell and used for adjusting the concrete grooving depth; the steel bar tester is arranged on the shell and provided with a detection end used for detecting the depth of steel bars in concrete. The linear driving mechanism drives the saw blade to move; the signal output end of the steel bar tester is in communication connection with the controller, and the signal output end of the controller is in communication connection with the control end of the linear driving mechanism. According to the technical scheme, the problem that in the prior art, the grooving depth cannot be adjusted according to the steel bar position and depth data detected in real time is solved.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to an electric motor for slotting and cutting concrete that can protect reinforcing bars. Background Technology

[0002] Reinforcing bars are distributed inside the concrete structure. During the construction process, a grooving machine is generally used to groove the wall surface. The saw blade is driven by a motor to rotate and cut the concrete surface.

[0003] Existing grooving machines can only adjust the grooving depth by hand based on the operator's feel, or they are fixed at a certain depth. Sometimes this can cut into the reinforcing steel, damage the saw blade, cause safety issues, and affect the strength of the concrete structure, resulting in unnecessary trouble and losses for the construction.

[0004] The problem that existing grooving machines cannot adjust the grooving depth based on real-time detected data of the rebar position and depth needs to be solved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an electric motor for grooving concrete that can protect the reinforcing bars, in order to address the above-mentioned technical deficiencies. This solves the problem that the existing technology cannot adjust the grooving depth according to the real-time detected position and depth data of the reinforcing bars.

[0006] The technical solution adopted by this utility model is: to provide an electric tool for grooving and cutting concrete that can protect reinforcing bars, including a motor, the output end of which drives a saw blade to rotate, the saw blade being used for grooving concrete; characterized in that it further includes:

[0007] An outer casing is provided to cover the motor and the saw blade, and the saw blade is movable relative to the outer casing to adjust the depth of concrete grooving.

[0008] A rebar measuring instrument, mounted on the housing, has a detection end for detecting the depth of rebar within concrete.

[0009] A linear drive mechanism drives the saw blade to move;

[0010] The signal output terminal of the rebar measuring instrument is communicatively connected to the controller, and the signal output terminal of the controller is communicatively connected to the control terminal of the linear drive mechanism.

[0011] Further optimization of this technical solution also includes:

[0012] A positioning plate is movably mounted on the outside of the outer shell, and the rebar measuring instrument is mounted on the positioning plate. The rebar measuring instrument is relatively movably mounted on the outer shell via the positioning plate, and the positioning plate abuts against the concrete surface after it moves.

[0013] A compression spring, with one end acting on the positioning plate and the other end acting on the outer shell, is used to provide pressure for the positioning plate to abut against the concrete surface.

[0014] Further optimization of this technical solution also includes:

[0015] The first traveling wheel has several of them. The first traveling wheel is fixedly mounted on the positioning plate or rotatably mounted on the positioning plate. The positioning plate abuts against the concrete surface through the first traveling wheel.

[0016] The second traveling wheel has several of them. The second traveling wheel is fixedly installed on the side of the outer shell near the concrete or rotatably installed on the side of the outer shell near the concrete. The second traveling wheel is used to abut against the concrete surface.

[0017] Further optimization of this technical solution also includes:

[0018] A water supply pipe, connected to the interior of the outer casing and positioned opposite the saw blade, is used to supply water to the saw blade;

[0019] A drain pipe, connected to the interior of the outer casing, is used to drain water from inside the outer casing.

[0020] Further optimization of this technical solution also includes:

[0021] A horizontal bubble meter is mounted on the housing.

[0022] Further optimization of this technical solution also includes:

[0023] A laser alignment device is mounted on the housing, with its output end facing the concrete surface.

[0024] To further optimize this technical solution, the rebar measuring instrument includes a display screen, which is mounted on the outer casing.

[0025] Further optimization of this technical solution also includes:

[0026] The first handrail is provided on the outer casing;

[0027] The second handrail is disposed on the outer casing, and the first handrail and the second handrail are disposed perpendicular to each other.

[0028] To further optimize this technical solution, the linear drive mechanism is a hydraulic cylinder assembly, and the lifting end of the hydraulic cylinder assembly drives the motor to move, and the saw blade follows the movement of the motor.

[0029] To further optimize this technical solution, there are two motors, which are arranged opposite each other inside the housing. The saw blade is located between the two motors, and the two motors jointly drive the saw blade to rotate.

[0030] The beneficial effects of this utility model are as follows:

[0031] 1. The rebar measuring instrument can detect whether there are rebars inside the concrete where a groove needs to be cut, as well as the depth of the rebars. After collecting the data, the groove depth can be adjusted by moving the saw blade according to the depth of the rebars, so as to avoid the saw blade cutting the rebars inside the concrete.

[0032] 2. Automated control is adopted to reduce misoperation and improve grooving efficiency. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0034] Figure 2 For the utility model Figure 1 Schematic diagram of the structure from the right side of the status;

[0035] Figure 3 This is a schematic diagram of the structure of the utility model from above;

[0036] Figure 4 For the utility model Figure 3 Schematic diagram of the cross-sectional structure at position AA;

[0037] Figure 5 This is a front view structural diagram of the present invention;

[0038] Figure 6 For the utility model Figure 5 Schematic diagram of the cross-sectional structure at the middle BB position;

[0039] Figure 7 For the utility model Figure 5 Schematic diagram of the cross-sectional structure at the CC position;

[0040] The markings in the diagram are as follows: 1. Outer shell; 101. Through groove; 102. Slide groove; 103. Slide seat; 2. Rebar measuring instrument; 201. Display screen; 3. Linear drive mechanism; 4. Positioning plate; 5. Compression spring; 601. First traveling wheel; 602. Second traveling wheel; 701. Water supply pipe; 702. Drain pipe; 801. Horizontal bubble meter; 802. Laser alignment instrument; 901. First handrail; 902. Second handrail; 10. Motor; 11. Saw blade. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0042] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0043] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] like Figure 1-7As shown, an electric tool for grooving concrete to protect reinforcing bars includes a motor 10, the output of which drives a saw blade 11 to rotate, the saw blade 11 being used for grooving concrete; it also includes: a housing 1, covering the motor 10 and the saw blade 11, the saw blade 11 being movable relative to the housing 1 for adjusting the depth of the concrete grooving; a reinforcing bar measuring instrument 2, mounted on the housing 1, having a detection end for detecting the depth of reinforcing bars within the concrete; a linear drive mechanism 3, driving the saw blade 11 to move; and a controller, the signal output of the reinforcing bar measuring instrument 2 being communicatively connected to the controller, the signal output of the controller being communicatively connected to the control end of the linear drive mechanism 3. It also includes: a positioning plate 4, movably mounted outside the housing 1, the reinforcing bar measuring instrument 2 being mounted on the positioning plate 4, the reinforcing bar measuring instrument 2 being relatively movable on the housing 1 via the positioning plate 4, the positioning plate 4 abutting against the concrete surface after movement; and a compression spring 5, one end acting on the positioning plate 4 and the other end acting on the housing 1, for providing pressure on the positioning plate 4 against the concrete surface. It also includes: a plurality of first traveling wheels 601, which are fixedly mounted on the positioning plate 4 or rotatably mounted on the positioning plate 4, and the positioning plate 4 abuts against the concrete surface through the first traveling wheels 601; and a plurality of second traveling wheels 602, which are fixedly mounted on the side of the outer shell 1 near the concrete or rotatably mounted on the side of the outer shell 1 near the concrete, and the second traveling wheels 602 are used to abut against the concrete surface.

[0046] In use, taking grooving on a vertical wall as an example, the outer casing 1 is positioned close to the concrete wall on one side and moved in one direction to create a groove. The rebar measuring instrument 2 is located at the front in the direction of movement and detects the rebar at the grooving location. The detected rebar depth data is processed by the controller, which then delays the extension and retraction of the lifting end of the linear drive mechanism 3 as needed. This adjusts the distance the saw blade 11 extends beyond the outer casing 1, changing the grooving depth and avoiding cutting the rebar. When no rebar is detected, the saw blade 11 can work to its maximum depth according to the full sawing dimension.

[0047] The rebar measuring instrument 2 is located next to the saw blade 11. There is a certain interval between the detection position of the rebar measuring instrument 2 and the cutting position of the saw blade 11. The time it takes for the saw blade 11 to move within this interval can be controlled by hand to maintain a certain and uniform speed as much as possible, and to make safety redundancy settings, such as setting the saw blade 11 to move away from the wall in advance and then move into the wall later, so as to increase the probability of avoiding cutting the rebar. A displacement sensor can also be installed to detect the displacement data of the saw blade 11 or the displacement data of the detection end of the rebar measuring instrument 2 in real time (the displacement data of the two are basically equal. For example, a displacement sensor can be set in the rebar measuring instrument 2, or a rebar measuring instrument 2 with displacement detection function can be used directly), so as to control the movement of the saw blade 11 more accurately.

[0048] The outer casing 1 covers the motor 10 and the linear drive mechanism 3, providing protection. A through slot 101 is opened on the side of the outer casing 1 closest to the wall, through which the saw blade 11 protrudes to cut the wall. The rebar measuring instrument 2 is located on the side of the outer casing 1 closest to the wall, fitting as close to the wall as possible to improve detection accuracy.

[0049] For flat walls, the positioning plate 4 can be an integral part of the outer shell 1 or the positioning plate 4 can be fixed on the side of the outer shell 1 near the wall, that is, the rebar measuring instrument 2 is fixed relative to the outer shell 1. However, concrete structures are not ideal flat surfaces, and when dealing with some curved walls, the fixed setting of the positioning plate 4 cannot adapt well to different walls. In this case, the positioning plate 4 can be moved on the outer shell 1, and the rebar measuring instrument 2 moves with the positioning plate 4 to keep close to the wall and maintain the best detection state.

[0050] The positioning plate 4 can be held against the wall by compression springs 5. Two compression springs 5 ​​can be installed on both sides of the rebar measuring instrument 2 to provide more stable pressure and allow the positioning plate 4 to adapt to curved walls (the curvature of the curved wall can meet the requirements of the positioning plate 4 when it is close). At the same time, a first traveling wheel 601 can be installed on the positioning plate 4, which can be fixed or rotated. The first traveling wheel protrudes from the positioning plate 4 and contacts the wall. The point contact method can improve the contact stability and better adapt to curved walls. Similarly, the second traveling wheel 602 has the same effect on the outer casing 1.

[0051] The first traveling wheel 601 is actively rotatable and mounted on the positioning plate 4, and the second traveling wheel 602 is also actively rotatable and mounted on the outer casing 1. The forward speed can be controlled via the first and second traveling wheels 601 and 602, thus resolving the gap between the detection position of the rebar measuring instrument 2 and the cutting position of the saw blade 11. This results in more accurate control of the saw blade 11's movement, eliminating the need for manual operation, reducing errors, and improving usability. Both the first and second traveling wheels 601 and 602 can utilize independent suspension technology, similar to that used in automobiles. For example, four second traveling wheels 602 can be mounted on the outer casing 1 around the saw blade 11, and four first traveling wheels 601 can be mounted on the positioning plate 4 around the detection end of the rebar measuring instrument 2. This independent adjustment of the suspension structure adapts to changes in height, making the movement of the outer casing 1 more stable and ensuring the motor 10 remains horizontal, resulting in better cutting performance.

[0052] Furthermore, it also includes: a water supply pipe 701, which is connected to the inside of the outer casing 1 and is positioned opposite to the saw blade 11, for supplying water to the saw blade 11; and a drain pipe 702, which is connected to the inside of the outer casing 1, for draining water from the inside of the outer casing 1.

[0053] During use, the water supply pipe 701 and drain pipe 702 effectively reduce dust at the saw blade 11. When grooving vertical walls, the water supply pipe 701 is located near the wall, and its outlet is opposite the saw blade 11, providing good dust reduction near the cutting area. The drain pipe 702 can be installed on the outer casing 1 and connected to a lower position inside the casing 1 (judged when the casing 1 is close to the wall and the saw blade 11 is cutting the wall), facilitating the drainage of internal water. The water supply pipe 701 is connected to an external water supply device, and a spray nozzle can be installed at its outlet. The drain pipe 702 can collect and drain wastewater. When grooving the ground, only the water supply pipe 701 is needed for dust reduction, and wastewater can be directly discharged to the ground from the through-slot 101 on the outer casing 1 (where the saw blade 11 passes through).

[0054] Furthermore, it also includes: a horizontal bubble level 801, mounted on the housing 1; and a laser alignment device 802, mounted on the housing 1, with its output end facing the concrete surface.

[0055] When in use, on a vertical wall, the axis of the horizontal bubble meter 801 is horizontal, which can determine the horizontal state of the outer casing 1 and keep the slot horizontal.

[0056] If a horizontal reference line is drawn on the wall, the laser alignment device 802 can emit an infrared indicator line to align with the horizontal reference line on the wall. The operator can better control the direction of the housing 1 by using the level bubble meter 801 and the laser alignment device 802.

[0057] Furthermore, the rebar measuring instrument 2 includes a display screen 201, which is mounted on the housing 1.

[0058] In use, the display screen 201 can be set on the side of the housing 1 away from the wall to display the data detected by the rebar measuring instrument 2.

[0059] Furthermore, it also includes: a first handrail 901, disposed on the outer casing 1; and a second handrail 902, disposed on the outer casing 1, wherein the first handrail 901 and the second handrail 902 are arranged perpendicular to each other.

[0060] When in use, two handrails are provided and arranged vertically, which makes it easier for the operator to apply force and control the direction. The first handrail 901 is located on the outer shell 1 opposite to the saw blade 11 and is set horizontally. The second handrail 902 is located next to the first handrail 901 and is set vertically. Both are located in the middle of the outer shell 1 on the side away from the wall.

[0061] Furthermore, the linear drive mechanism 3 is a hydraulic cylinder assembly. The lifting end of the hydraulic cylinder assembly drives the motor 10 to move, and the saw blade 11 moves with the motor 10. There are two motors 10, which are arranged opposite each other inside the housing 1. The saw blade 11 is located between the two motors 10, and the two motors 10 jointly drive the saw blade 11 to rotate.

[0062] In use, the motor 10 can be mounted on a slide 103. The lifting end of the hydraulic cylinder assembly drives the slide 103 to move. After the slide 103 moves, it moves closer to and away from the wall. The motor 10 is mounted on the slide 103. At the same time, a slide groove 102 can also be provided on the inner wall of the housing 1. The slide 103 slides in the slide groove 102, which is more stable. The hydraulic cylinder can also be located in the slide groove 102.

[0063] To improve the cutting stability of the motor 10, two motors 10 can be set. The two motors 10 can drive a set of saw blades 11 in the middle at the same time or drive a set of saw blades 11 separately. The two sets of saw blades 11 are connected in the middle. At the same time, the inner walls on both sides of the outer casing 1 are provided with sliding grooves 102. Two slide blocks 103 move in the two sliding grooves 102 respectively. A motor 10 is fixedly installed on each slide block 103. A hydraulic cylinder assembly is installed in each sliding groove 102 to drive the slide block 103 to move.

[0064] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An electric tool for grooving concrete with protective reinforcing bars, comprising a motor (10), the output end of which drives a saw blade (11) to rotate, the saw blade (11) being used for grooving concrete; characterized in that, Also includes: The outer casing (1) covers the outside of the motor (10) and the saw blade (11), and the saw blade (11) is movable relative to the outer casing (1) to adjust the depth of concrete grooving; A rebar measuring instrument (2) is mounted on the outer casing (1) and has a detection end, which is used to detect the depth of rebar in concrete; A linear drive mechanism (3) drives the saw blade (11) to move; The signal output terminal of the rebar measuring instrument (2) is connected to the controller, and the signal output terminal of the controller is connected to the control terminal of the linear drive mechanism (3).

2. The electric motor for slotting and cutting concrete that can protect reinforcing bars according to claim 1, characterized in that, Also includes: The positioning plate (4) is movably disposed on the outside of the outer shell (1). The rebar measuring instrument (2) is disposed on the positioning plate (4). The rebar measuring instrument (2) is relatively movably disposed on the outer shell (1) through the positioning plate (4). After the positioning plate (4) moves, it abuts against the concrete surface. A compression spring (5) acts on the positioning plate (4) at one end and on the outer shell (1) at the other end, and is used to provide pressure for the positioning plate (4) to abut against the concrete surface.

3. The electric motor for slotting and cutting concrete that can protect reinforcing bars according to claim 2, characterized in that, Also includes: The first traveling wheel (601) has several of them. The first traveling wheel (601) is fixedly mounted on the positioning plate (4) or rotatably mounted on the positioning plate (4). The positioning plate (4) abuts against the concrete surface through the first traveling wheel (601). The second traveling wheel (602) has several of them. The second traveling wheel (602) is fixedly installed on the side of the outer shell (1) near the concrete or rotatably installed on the side of the outer shell (1) near the concrete. The second traveling wheel (602) is used to abut against the concrete surface.

4. The electric motor for slotting and cutting concrete that can protect reinforcing bars according to claim 1, characterized in that, Also includes: A water supply pipe (701) is connected to the interior of the outer casing (1) and is positioned opposite to the saw blade (11) for supplying water to the saw blade (11); The drain pipe (702) is connected to the interior of the outer casing (1) and is used to drain the water inside the outer casing (1).

5. The electric motor for slotting and cutting concrete that can protect reinforcing bars according to claim 1, characterized in that, Also includes: A horizontal bubble meter (801) is mounted on the housing (1).

6. The electric motor for slotting and cutting concrete that can protect reinforcing bars according to claim 1, characterized in that, Also includes: A laser alignment device (802) is mounted on the housing (1), with its output end facing the concrete surface.

7. The electric motor for slotting and cutting concrete that can protect reinforcing bars according to claim 1, characterized in that, The rebar measuring instrument (2) includes a display screen (201) which is mounted on the outer casing (1).

8. The electric motor for slotting and cutting concrete that can protect reinforcing bars according to claim 1, characterized in that, Also includes: The first handrail (901) is provided on the outer casing (1); The second handrail (902) is disposed on the outer shell (1), and the first handrail (901) and the second handrail (902) are disposed perpendicular to each other.

9. The electric motor for slotting and cutting concrete that can protect reinforcing bars according to claim 1, characterized in that, The linear drive mechanism (3) is a hydraulic cylinder assembly. The lifting end of the hydraulic cylinder assembly drives the motor (10) to move, and the saw blade (11) moves with the motor (10).

10. The electric motor for slotting and cutting concrete that can protect reinforcing bars according to claim 1, characterized in that, There are two motors (10), which are arranged opposite to each other inside the housing (1). The saw blade (11) is located between the two motors (10), and the two motors (10) drive the saw blade (11) to rotate together.

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