Slotting and concrete cutting electric tool capable of protecting steel bars

Abstract

The invention relates to the technical field of constructional engineering, and provides a grooving and concrete cutting electric tool capable of protecting steel bars, the grooving and concrete cutting electric tool comprises a motor, the output end of the motor drives a saw blade to rotate, and the saw blade is used for concrete grooving; 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] The invention relates to the technical field of construction engineering, in particular to an electric tool for cutting concrete by grooving and protecting steel bars. Background Art

[0002] There are steel bars distributed inside the concrete structure. During the construction process, a slotting machine is generally used to slot the wall surface. The saw blade is driven by a motor to cut and slot the concrete surface.

[0003] Existing grooving machines can only adjust the grooving depth by hand according to the construction worker's feeling, or the depth is fixed. Sometimes the steel bars are cut, causing damage to the saw blade, which will also cause safety problems in use. At the same time, it may affect the strength of the concrete structure, causing unnecessary trouble and loss to the construction.

[0004] The problem that the existing slotting machine cannot adjust the slotting depth according to the real-time detected steel bar position and depth data needs to be solved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an electric tool for grooving and cutting concrete that can protect steel bars in response to the above-mentioned technical deficiencies, which solves the problem that the prior art cannot adjust the grooving depth according to the real-time detected steel bar position and depth data.

[0006] The technical solution adopted by the present invention is: to provide an electric tool for cutting grooves in concrete which can protect steel bars, comprising a motor, the output end of which drives a saw blade to rotate, and the saw blade is used for cutting grooves in concrete; the invention is characterized in that it also includes:

[0007] A housing, which is arranged outside the motor and the saw blade, and the saw blade is arranged to move relative to the housing to adjust the depth of the concrete grooving;

[0008] A steel bar measuring instrument, arranged on the housing, having a detection end, the detection end being used to detect the depth of steel bars in concrete;

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

[0010] A controller, wherein the signal output end of the steel bar measuring instrument is communicatively connected to the controller, and the signal output end of the controller is communicatively connected to the control end of the linear drive mechanism.

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

[0012] A positioning plate is movably arranged outside the housing, the steel bar measuring instrument is arranged on the positioning plate, the steel bar measuring instrument is relatively movably arranged on the housing through the positioning plate, and the positioning plate abuts against the concrete surface after movement;

[0013] A compression spring, one end of which acts on the positioning plate and the other end of which acts on the housing, 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] There are a plurality of first running wheels, wherein the first running wheels are fixedly arranged on the positioning plate or rotatably arranged on the positioning plate, and the positioning plate abuts against the concrete surface through the first running wheels;

[0016] There are a plurality of second running wheels, which are fixedly arranged on the side of the shell close to the concrete or rotatably arranged on the side of the shell close to the concrete, and are 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 housing and opposite to the saw blade, for supplying water to the saw blade;

[0019] A drain pipe is communicated with the interior of the shell and is used to drain water from the interior of the shell.

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

[0021] A level bubble meter is arranged on the shell.

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

[0023] The laser alignment instrument is arranged on the housing, and the output end is opposite to the concrete surface.

[0024] To further optimize the technical solution, the steel bar measuring instrument includes a display screen, and the display screen is arranged on the housing.

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

[0026] A first handrail, disposed on the housing;

[0027] The second armrest is arranged on the shell, and the first armrest and the second armrest are arranged perpendicular to each other.

[0028] To further optimize the technical solution, the linear drive mechanism is a hydraulic cylinder assembly, 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 the technical solution, there are two motors, the two motors are relatively arranged in 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 the present invention are:

[0031] 1. The steel bar measuring instrument can detect whether there are steel bars and the depth position inside the concrete where the grooves need to be cut. After collecting the data, the saw blade is moved to adjust the groove depth according to the depth of the steel bars to avoid the saw blade cutting the steel bars in the concrete.

[0032] 2. Use automatic control to reduce misoperation and improve slotting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0034] Figure 2 For the present invention Figure 1 Schematic diagram of the state right side perspective structure;

[0035] Figure 3 It is a schematic diagram of the structure of the present invention viewed from above;

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

[0037] Figure 5 It is a front structural schematic diagram of the present invention;

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

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

[0040] Explanation of marks in the figure: 1. Shell; 101. Through slot; 102. Slide slot; 103. Slide seat; 2. Rebar measuring instrument; 201. Display screen; 3. Linear drive mechanism; 4. Positioning plate; 5. Compression spring; 601. First running wheel; 602. Second running wheel; 701. Water supply pipe; 702. Drain pipe; 801. Level bubble meter; 802. Laser alignment instrument; 901. First handrail; 902. Second handrail; 10. Motor; 11. Saw blade. DETAILED DESCRIPTION

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

[0042] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0043] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0045] like Figure 1-7 As shown, an electric tool for cutting grooves and cutting concrete that can protect steel bars includes a motor 10, the output end of the motor 10 drives a saw blade 11 to rotate, and the saw blade 11 is used for cutting grooves in concrete; it also includes: a housing 1, which is set outside the motor 10 and the saw blade 11, and the saw blade 11 is movably set relative to the housing 1, and is used to adjust the depth of concrete grooves; a steel bar measuring instrument 2, which is set on the housing 1 and has a detection end, and the detection end is used to detect the depth of steel bars in concrete; a linear drive mechanism 3, which drives the saw blade 11 to move; a controller, the signal output end of the steel bar measuring instrument 2 is connected to the controller for communication, and the signal output end of the controller is connected to the control end of the linear drive mechanism 3 for communication. It also includes: a positioning plate 4, which is movably set outside the housing 1, and the steel bar measuring instrument 2 is set on the positioning plate 4. The steel bar measuring instrument 2 is relatively movably set on the housing 1 through the positioning plate 4, and the positioning plate 4 is moved to abut against the concrete surface; a compression spring 5, one end of which acts on the positioning plate 4 and the other end acts on the housing 1, and is used to provide pressure for the positioning plate 4 to abut against the concrete surface. It also includes: a first running wheel 601, which has a plurality of first running wheels 601, which are fixedly arranged on the positioning plate 4 or rotatably arranged on the positioning plate 4, and the positioning plate 4 abuts against the concrete surface through the first running wheels 601; a second running wheel 602, which has a plurality of second running wheels 602, which are fixedly arranged on a side of the shell 1 close to the concrete or rotatably arranged on a side of the shell 1 close to the concrete, and the second running wheel 602 is used to abut against the concrete surface.

[0046] When in use, taking grooving on a vertical wall as an example, one side of the housing 1 is close to the concrete wall, and the housing 1 is moved in one direction to make a groove on the wall. The steel bar measuring instrument 2 is located at the front side in the moving direction, and detects the steel bars at the position to be grooved. The detected steel bar depth data is processed by the controller, and the lifting end of the linear drive mechanism 3 is controlled to be extended and retracted in time to adjust the distance of the saw blade 11 extending out of the housing 1, change the grooving depth, and avoid cutting the steel bars. When no steel bars are detected, the saw blade 11 can work at the maximum depth according to the full sawing size.

[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 for the saw blade 11 to move within this interval can be controlled by hand-held movement, and a certain speed and uniform speed should be maintained as much as possible. Safety redundancy settings can also be made, such as setting the saw blade 11 to move away from the wall in advance and delay penetrating into the wall 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 a displacement detection function can be directly used), so as to more accurately control the movement of the saw blade 11.

[0048] The housing 1 covers the outside of the motor 10 and the linear drive mechanism 3 to protect them. A through slot 101 is provided on the side of the housing 1 close to the wall, and the saw blade 11 is exposed from the through slot 101 to cut the wall. The steel bar measuring instrument 2 is located on the side of the housing 1 close to the wall, and is as close to the wall as possible to improve the detection accuracy.

[0049] For a flat wall, the positioning plate 4 can be an integral structure with the outer shell 1 or the positioning plate 4 can be fixed on the side of the outer shell 1 close to the wall, that is, the steel bar measuring instrument 2 is fixedly arranged relative to the outer shell 1; however, the concrete structure is not an ideal plane, and when dealing with some curved walls, the fixed setting of the positioning plate 4 cannot adapt well to different walls. At this time, the positioning plate 4 can be movably arranged on the outer shell 1, and the steel bar measuring instrument 2 moves with the positioning plate 4, keeps close to the wall, and maintains the best detection state.

[0050] The positioning plate 4 can be kept against the wall by the compression spring 5. Two compression springs 5 ​​can be provided, located on both sides of the steel bar measuring instrument 2, which can provide pressure more stably and make the positioning plate 4 adapt to the curved wall (the curvature of the curved wall can meet the situation where the positioning plate 4 is close). At the same time, the first walking wheel 601 can be provided on the positioning plate 4, which can be fixed or rotatable. The first walking path protrudes from the positioning plate 4 and contacts the wall. The contact stability can be improved through point contact, and it can be more adaptable to the curved wall. Similarly, the provision of the second walking wheel 602 has the same effect on the housing 1.

[0051] The first running wheel 601 can be actively rotated and set on the positioning plate 4, and the second running wheel 602 can also be actively rotated and set on the housing 1. The forward speed can be controlled by the first running wheel 601 and the second running wheel 602, which can solve the problem of the distance between the detection position of the steel bar measuring instrument 2 and the cutting position of the saw blade 11, so that the control of the movement of the saw blade 11 is more accurate, no manual operation is required, and the error is reduced, which is better for use. The first running wheel 601 and the second running wheel 602 can both adopt independent suspension in automobile technology. For example, four second running wheels 602 can be set on the housing 1 and located around the saw blade 11, and four first running wheels 601 can be set on the positioning plate 4 and located around the detection end of the steel bar measuring instrument 2. The suspension structure can be independently adjusted to adapt to height changes, and the movement of the housing 1 is more stable, and the motor 10 can be kept in a horizontal state, and the cutting state is better.

[0052] Furthermore, it also includes: a water supply pipe 701, which is connected to the inside of the shell 1 and is opposite to the saw blade 11, and is used to supply water to the saw blade 11; a drainage pipe 702, which is connected to the inside of the shell 1 and is used to drain the water inside the shell 1.

[0053] When in use, the water supply pipe 701 and the drainage pipe 702 can have a dust reduction effect on the saw blade 11. When grooving a vertical wall, the water supply pipe 701 is located on the side close to the wall, and the water outlet of the water supply pipe 701 can be opposite to the saw blade 11, which can have a good dust reduction effect near the cutting work position. The drainage pipe 702 can be set on the shell 1 and connected to a lower position in the shell 1 (to be judged when the shell 1 is close to the wall and the saw blade 11 is cutting the wall), which is convenient for draining the internal water. The water supply pipe 701 is connected to an external water supply device, and a water spray head can also be set at the water outlet of the water supply pipe 701. The drainage pipe 702 can discharge and collect sewage. When grooving on the ground, only the water supply pipe 701 can be relied on to supply water and reduce dust, and the sewage is directly discharged to the ground from the through groove 101 on the shell 1 (that is, the position where the saw blade 11 passes).

[0054] Furthermore, it also includes: a bubble level meter 801, which is arranged on the housing 1. A laser alignment meter 802, which is arranged on the housing 1, and the output end is opposite to the concrete surface.

[0055] When in use, when on a vertical wall, the axis of the level bubble meter 801 is horizontal, and the horizontal state of the housing 1 can be measured to keep the slots horizontal.

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

[0057] Furthermore, the steel bar measuring instrument 2 includes a display screen 201 , and the display screen 201 is arranged on the housing 1 .

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

[0059] Furthermore, it also includes: a first armrest 901, which is arranged on the housing 1; a second armrest 902, which is arranged on the housing 1, and the first armrest 901 and the second armrest 902 are arranged perpendicular to each other.

[0060] When in use, two handrails are provided, and are arranged in a vertical state, which is more convenient for the operator to apply force and control the direction. The first handrail 901 can be located on the housing 1 at a position opposite to the saw blade 11, and is arranged horizontally, and the second handrail 902 is located beside the first handrail 901, and is arranged vertically, and both are located in the middle of the housing 1 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 following the motor 10. There are two motors 10, the two motors 10 are relatively arranged in 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] When in use, the motor 10 can be installed on a slide 103, and the lifting end of the hydraulic cylinder assembly drives the slide 103 to move. After the slide 103 moves, it approaches and then moves away from the wall. The motor 10 is installed on the slide 103. At the same time, a slide groove 102 can also be set on the inner wall of the outer shell 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] In order to improve the cutting stability of the motor 10, two motors 10 can be set. The two motors 10 drive a group of saw blades 11 in the middle at the same time or drive a group of saw blades 11 separately. The two groups of saw blades 11 are connected in the middle. At the same time, slide grooves 102 are set on the inner walls on both sides of the outer shell 1. The two slide seats 103 move in the two slide grooves 102 respectively. A motor 10 is fixed on each slide seat 103. A hydraulic cylinder assembly is set in each slide groove 102 to drive the slide seat 103 to move.

[0064] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An electric tool for cutting grooves in concrete and protecting steel bars, comprising a motor (10), wherein the output end of the motor (10) drives a saw blade (11) to rotate, and the saw blade (11) is used for cutting grooves in concrete; characterized in that: Also includes: A housing (1) is arranged to cover the outside of the motor (10) and the saw blade (11); the saw blade (11) is movably arranged relative to the housing (1) and is used to adjust the depth of concrete grooving; A steel bar measuring instrument (2), arranged on the housing (1), having a detection end, wherein the detection end is used to detect the depth of the steel bars in the concrete; A linear drive mechanism (3) drives the saw blade (11) to move; A controller, wherein the signal output end of the steel bar measuring instrument (2) is communicatively connected to the controller, and the signal output end of the controller is communicatively connected to the control end of the linear drive mechanism (3).

2. The electric tool for cutting grooves and cutting concrete capable of protecting steel bars according to claim 1, characterized in that: Also includes: A positioning plate (4) is movably arranged outside the housing (1); the steel bar measuring instrument (2) is arranged on the positioning plate (4); the steel bar measuring instrument (2) is relatively movably arranged on the housing (1) via the positioning plate (4); and the positioning plate (4) abuts against the concrete surface after movement; A compression spring (5) has one end acting on the positioning plate (4) and the other end acting on the housing (1), and is used to provide pressure for the positioning plate (4) to abut against the concrete surface.

3. The electric tool for cutting concrete with grooves capable of protecting steel bars according to claim 2, characterized in that: Also includes: A plurality of first running wheels (601), wherein the first running wheels (601) are fixedly arranged on the positioning plate (4) or rotatably arranged on the positioning plate (4), and the positioning plate (4) abuts against the concrete surface through the first running wheels (601); There are a plurality of second running wheels (602), and the second running wheels (602) are fixedly arranged on a side of the shell (1) close to the concrete or rotatably arranged on a side of the shell (1) close to the concrete. The second running wheels (602) are used to abut against the concrete surface.

4. The electric tool for cutting concrete with grooves capable of protecting steel bars according to claim 1, characterized in that: Also includes: a water supply pipe (701), which is in communication with the interior of the housing (1) and is located opposite to the saw blade (11), and is used to supply water to the saw blade (11); A drain pipe (702) is connected to the interior of the housing (1) and is used to drain water from the interior of the housing (1).

5. The electric tool for cutting concrete with grooves capable of protecting steel bars according to claim 1, characterized in that: Also includes: A bubble level meter (801) is arranged on the housing (1).

6. The electric tool for cutting concrete with grooves capable of protecting steel bars according to claim 1, characterized in that: Also includes: A laser alignment instrument (802) is arranged on the housing (1), with its output end facing the concrete surface.

7. The electric tool for cutting grooves and cutting concrete capable of protecting steel bars according to claim 1, characterized in that: The steel bar measuring instrument (2) comprises a display screen (201), and the display screen (201) is arranged on the housing (1).

8. The electric tool for cutting concrete with grooves capable of protecting steel bars according to claim 1, characterized in that: Also includes: A first handrail (901) is arranged on the housing (1); The second handrail (902) is arranged on the housing (1), and the first handrail (901) and the second handrail (902) are arranged perpendicular to each other.

9. The electric tool for cutting grooves and cutting concrete capable of protecting steel 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 following the motor (10).

10. The electric tool for cutting concrete with grooves capable of protecting steel bars according to claim 1, characterized in that: There are two motors (10), the two motors (10) are arranged opposite to each other in 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.

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