House building construction cutting device

By designing the building construction cutting device, and using clamping hydraulic cylinders and clearance adjustment structures, automatic cutting of steel bars is achieved, solving the problems of unstable and dangerous cutting in the existing technology, improving cutting accuracy and safety, and improving construction efficiency.

CN223197948UActive Publication Date: 2025-08-08CHONGQING NANZHOU TOURISM DEV & CONSTRUCT INVEST GRP CO LTD
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Patent Information

Application Number
CN202421945024.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-08-08
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

During the construction of the house, it is dangerous to use an angle grinder to cut steel bars, and it is difficult to accurately control the cutting angle, speed and strength, resulting in unstable cutting process and high risk.

Method used

A cutting device for building construction is designed, including hand-held brackets, clamping structures, cutting guides and cutting machines. The clamping hydraulic cylinders and gap adjustment structures are used to ensure the linear motion and stability of the cutting machine, clamp the steel bars through hydraulic drive, reduce manual intervention, and realize automated cutting.

Benefits of technology

It improves cutting accuracy and safety, reduces manual intervention, reduces labor intensity, and improves construction efficiency and project progress.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223197948U_ABST
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Abstract

The utility model relates to a house building construction cutting device which comprises a handheld rack, a clamping structure arranged on a steel bar head in a sleeving mode is arranged on the handheld rack, and a cutting structure is slidably connected between the front end of the clamping structure and the wall face. The cutting structure comprises a cutting guide rail extending from one side of the clamping structure to the front end of the clamping structure and a cutting machine slidably connected to the cutting guide rail. A supporting plate which abuts against the wall face to extend is fixed to the front end of the clamping structure, the cutting guide rail is parallel to the supporting plate, and a gap is reserved between the cutting machine and the wall face. A gap adjusting structure is arranged at the end, close to the clamping structure, of the cutting guide rail, slides along the cutting guide rail and is positioned, the cutting machine abuts against the side, opposite to the clamping structure, of the gap adjusting structure, and a gap is reserved between the cutting machine and the clamping structure. And a driving control structure is arranged on the cutting machine. The wall surface steel bar head cutting device has the effect that the wall surface steel bar head can be cut without precisely controlling the cutting angle, speed and force by an operator, and operation is easy.
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Description

Technical Field

[0001] The present application relates to the technical field of steel bar cutting, and in particular to a cutting device for building construction. Background Art

[0002] During building construction, some basements or foundation pit structures will leave steel bars exposed during concrete pouring. After the pouring is completed, the exposed steel bars will be cut off. This will help improve the weighing strength of the wall. Workers usually need to use angle grinders to cut the steel bars one by one.

[0003] However, cutting this type of steel bar with an angle grinder is dangerous. When cutting along the wall, workers need to closely observe the gap between the angle grinder and the wall to cut the steel bar along the root. Moreover, the angle grinder loses support at the moment of cutting the steel bar, making the entire cutting process difficult to control. In response to the above-mentioned related technologies, the applicant has proposed a device that is easy to operate and can complete the cutting of the wall steel bar head without the operator having to precisely control the cutting angle, speed and force. Utility Model Content

[0004] In order to provide an easy-to-operate device that can cut the wall steel bar heads without the operator having to precisely control the cutting angle, speed and force, the present application provides a building construction cutting device.

[0005] The present application provides a building construction cutting device that adopts the following technical solutions:

[0006] A building construction cutting device includes a handheld bracket, which is provided with a clamping structure that is sleeved on the steel bar head, a cutting structure that is slidably connected between the front end of the clamping structure and the wall, and the cutting structure includes a cutting guide rail extending from one side of the clamping structure to the front end of the clamping structure and a cutting machine slidably connected to the cutting guide rail; a support plate extending against the wall is fixed to the front end of the clamping structure, the cutting guide rail is arranged parallel to the support plate, and a gap is left between the cutting machine and the wall; a gap adjustment structure is provided on the cutting guide rail near one end of the clamping structure, the gap adjustment structure slides and is positioned along the cutting guide rail, the cutting machine abuts against the side of the gap adjustment structure opposite to the clamping structure, and a gap is left between the cutting machine and the clamping structure; the cutting machine is provided with a drive control structure.

[0007] By adopting the above technical solution, the cutting guide ensures the linear movement of the cutting machine, improves cutting accuracy, and avoids errors caused by hand shaking or instability when cutting walls; the support plate and clamping structure ensure the stability of the cutting device when operating on the wall or ground, reduces the risk of sliding or tilting, and increases operational safety; the overall design reduces the need for manual intervention, shortens construction time, and improves the overall project progress.

[0008] Preferably, the clamping structure includes a fixed chuck, a movable chuck and a clamping hydraulic cylinder, the fixed chuck is fixed to the handheld bracket; the movable chuck is connected to the handheld bracket for lifting, and the movable chuck is located above the fixed chuck; the movable end and the fixed end of the clamping hydraulic cylinder are respectively fixed to the movable chuck and the fixed chuck.

[0009] By adopting the above technical solutions and the intelligent design of the clamping structure, such as hydraulic drive, the operator can complete the clamping operation without expending a lot of physical effort, reducing labor intensity and improving work comfort; the clamping hydraulic cylinder generates a large clamping force through the hydraulic principle, which can effectively fix materials of different shapes and sizes, such as steel bars, and maintain stability even during high-intensity cutting processes.

[0010] Preferably, a power structure is provided on the clamping hydraulic cylinder, which includes an oil pump, an oil pot and an electric control switch. The oil pump is fixed to the handheld bracket and connected to the clamping hydraulic cylinder; the oil pot is fixed and connected to the side of the oil pump opposite to the clamping hydraulic cylinder; the electric control switch is telescopically connected to the handheld bracket, and the electric control switch is electrically connected to the oil pump.

[0011] Preferably, the gap adjustment structure includes an adjusting slider and a positioning bolt, the adjusting slider is sleeved and slidably connected to the cutting guide rail, and the cutting machine abuts against the adjusting slider; the positioning bolt passes through the cutting guide rail, and the threaded end of the positioning bolt is screwed to the adjusting slider, and the nut end of the positioning bolt is offset from the adjusting slider and abuts against the side wall of the cutting guide rail.

[0012] By adopting this technical solution, the adjustment slider slides on the cutting guide, allowing the gap between the cutter and the wall to be finely adjusted according to actual needs. This ensures consistent cutting depth and straightness of the cut edge, which is crucial for highly precise cutting operations. By rotating the positioning bolt, the operator can easily adjust the distance between the cutter and the wall without complex tools or tedious steps, significantly improving the efficiency of on-site operations.

[0013] Preferably, the drive control structure includes a drive handle and a return spring; the drive handle is fixed to the cutting machine; one end of the return spring is fixed to the cutting guide rail, and the other end fixes and drives the cutting machine away from the fixed clamp.

[0014] Preferably, the cutting guide rail is fixed to one end of the fixed chuck close to the wall and extends toward one side of the dynamic chuck; the support plate is fixed to both ends of the cutting guide rail and is arranged against the wall; the fixed chuck is arranged in an arc shape toward the side of the cutting machine, and the arc of the fixed chuck corresponds to the arc setting of the cutting machine; the dynamic chuck extends at a right angle toward the wall, and the steel bar head is accommodated in the right-angle side corresponding to the dynamic chuck.

[0015] Preferably, a chamfer is provided on the bottom end of the support plate close to the wall.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The cutting guide ensures the linear motion of the cutting machine, improving cutting accuracy and avoiding errors caused by hand shaking or instability when cutting walls. The support plate and clamping structure ensure the stability of the cutting device when working on walls or floors, reducing the risk of slipping or tilting and increasing operational safety. The overall design reduces the need for manual intervention, shortens construction time, and improves overall project progress.

[0018] 2. The intelligent design of the clamping structure, such as hydraulic drive, allows operators to complete the clamping operation without expending a lot of physical effort, reducing labor intensity and improving working comfort. The clamping hydraulic cylinder generates a large clamping force through the hydraulic principle, which can effectively fix materials of different shapes and sizes, such as steel bars, and maintain stability even during high-intensity cutting processes.

[0019] 3. The adjustment slider slides on the cutting guide, allowing the gap between the cutter and the wall to be finely adjusted according to actual needs. This ensures consistent cutting depth and straightness of the cut edge, which is crucial for highly precise cutting operations. By rotating the positioning bolt, the operator can easily adjust the distance between the cutter and the wall without complex tools or tedious steps, significantly improving on-site work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of an embodiment of the present application;

[0021] Figure 2 It is a structural diagram of an embodiment of the present application;

[0022] Figure 3 It is a cross-sectional view showing the gap adjustment structure of an embodiment of the present application.

[0023] Explanation of the accompanying drawings: 1. Handheld bracket; 2. Power structure; 21. Oil pump; 22. Oil can; 23. Electric control switch; 3. Cutting structure; 31. Cutting guide rail; 32. Cutting machine; 4. Clamping structure; 41. Fixed chuck; 42. Moving chuck; 43. Clamping hydraulic cylinder; 5. Gap adjustment structure; 51. Adjustment slider; 52. Positioning bolt; 6. Drive control structure; 61. Drive handle; 62. Return spring; 7. Support plate. DETAILED DESCRIPTION

[0024] The present application is further described in detail below with reference to the accompanying drawings.

[0025] The present application embodiment discloses a building construction cutting device, referring to Figure 1 、 2, including a handheld bracket, the handheld bracket 1 is provided with a clamping structure 4 which is sleeved on the steel bar head, the clamping structure 4 includes a fixed clamping head 41, a movable clamping head 42 and a clamping hydraulic cylinder 43, the fixed clamping head 41 is fixed to the handheld bracket 1; the movable clamping head 42 is connected to the handheld bracket 1 for lifting, and the movable clamping head 42 is located above the fixed clamping head 41; the movable end and the fixed end of the clamping hydraulic cylinder 43 are respectively fixed to the movable clamping head 42 and the fixed clamping head 41; the clamping hydraulic cylinder 43 is driven by the power structure 2 to clamp the steel bar head.

[0026] Reference Figure 1 、 2 The power structure 2 includes an oil pump 21, an oil pot 22 and an electric control switch 23. The oil pump 21 is fixed to the handheld bracket 1 and connected to the clamping hydraulic cylinder 43; the oil pot 22 is fixed and connected to the side of the oil pump 21 opposite to the clamping hydraulic cylinder 43; the electric control switch 23 is telescopically connected to the handheld bracket 1, and the electric control switch 23 is electrically connected to the oil pump 21; the electric hydraulic pump can maintain a stable clamping force.

[0027] Reference Figure 1 、 2 A cutting structure 3 is slidably connected between the front end of the clamping structure 4 and the wall. The cutting structure 3 includes a cutting guide rail 31 and a cutting machine 32. The cutting guide rail 31 is fixed to the fixed clamp 41 at one end close to the wall and extends toward the side of the dynamic clamp 42; the cutting machine 32 is slidably connected to the cutting guide rail 31; support plates 7 are fixed at both ends of the cutting guide rail 31, and the support plates 7 abut against and extend along the wall; when the support plates 7 abut against the wall, a gap is left between the cutting machine 32 and the wall, and the distance between the cutting machine 32 and the wall is controlled by the support plates 7, thereby preventing wear between the cutting machine 32 and the wall.

[0028] Reference Figure 1 、 2 The fixed clamp 41 is set in an arc shape toward the side of the cutting machine 32, and the curvature of the fixed clamp 41 corresponds to the curvature of the cutting machine 32, so that the gap between the fixed clamp 41 and the cutting machine 32 is consistent and the incision is smooth. At the same time, the arc-shaped pricing head helps to locate the steel bar head; the dynamic clamp 42 extends at a right angle toward the wall, and the steel bar head is accommodated in the right-angle side corresponding to the dynamic clamp 42, so as to better clamp and adapt to steel bar heads of different sizes.

[0029] Reference Figure 2 、 3The cutting guide rail 31 is provided with a gap adjustment structure 5 at one end near the clamping structure 4. The gap adjustment structure 5 includes an adjusting slider 51 and a positioning bolt 52. The adjusting slider 51 is sleeved and slidably connected to the cutting guide rail 31, and the cutter 32 abuts against the adjusting slider 51; the positioning bolt 52 is passed through the cutting guide rail 31, and the threaded end of the positioning bolt 52 is screwed to the adjusting slider 51, and the nut end of the positioning bolt 52 is misaligned with the adjusting slider 51 and abuts against the side wall of the cutting guide rail 31; by adjusting the position of the positioning nut, the retention depth of the cutting of the steel bar head by the cutting machine 32 is controlled.

[0030] Reference Figure 1 、 2 The cutting machine 32 is provided with a driving control structure 6, which includes a driving handle 61 and a return spring 62; the driving handle 61 is fixed to the cutting machine 32; one end of the return spring 62 is fixed to the cutting guide rail 31, and the other end is fixed to and drives the cutting machine 32 away from the fixed clamp 41; when the driving handle 61 is pressed down, the cutting machine 32 cuts the steel bar head; when the driving handle 61 is released, the cutting machine 32 is driven to reset by the return spring 62.

[0031] The bottom end of the support plate 7 is provided with a rounded corner near the wall. The handheld bracket can be rotated downward to bend and break the steel bar. The rounded corner protects the wall from damage.

[0032] The working process of this application is: insert the steel bar head between the fixed clamp 41 and the dynamic clamp 42, and control the clamping hydraulic cylinder 43 to clamp the steel bar head, the support plate 7 is close to the wall, and the cutting machine 32 is pressed down to cut the steel bar head. Before the steel bar head is completely cut off, the support plate 7 cooperates with the fixed clamp 41, and the steel bar head will not bend downward. The steel bar head is only subjected to horizontal tension, and the direction of tension is consistent with the extension direction of the steel bar head, that is, perpendicular to the wall, so the cutting machine 32 can stably cut the steel bar head without the need for additional manual force control.

[0033] By adjusting the gap adjustment structure 5, the cutting machine 32 can adapt to the width of the steel bar head as much as possible, so that the cut steel bar head maintains a slight adhesion with the steel bar, preventing direct cutting from making the device difficult to control. Then, the steel bar head can be made to lose its lateral tensile strength by twisting, and then the handheld bracket 1 is pressed down to abut against the chamfer under the support plate 7, pulling off the steel bar head, thereby completely cutting off the steel bar, and the device always remains in an easy-to-control state.

[0034] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A building construction cutting device, comprising a handheld bracket, characterized in that: The handheld bracket (1) is provided with a clamping structure (4) sleeved on the steel bar head, a cutting structure (3) is slidably connected between the front end of the clamping structure (4) and the wall surface, and the cutting structure (3) includes a cutting guide rail (31) extending from one side of the clamping structure (4) to the front end of the clamping structure (4) and a cutting machine (32) slidably connected to the cutting guide rail (31); a support plate (7) extending against the wall surface is fixed at the front end of the clamping structure (4), the cutting guide rail (31) is arranged parallel to the support plate (7), and a gap is left between the cutting machine (32) and the wall surface; a gap adjustment structure (5) is provided at one end of the cutting guide rail (31) close to the clamping structure (4), the gap adjustment structure (5) slides and is positioned along the cutting guide rail (31), the cutting machine (32) abuts against the side of the gap adjustment structure (5) opposite to the clamping structure (4), and a gap is left between the cutting machine (32) and the clamping structure (4); a driving control structure (6) is provided on the cutting machine (32).

2. A building construction cutting device according to claim 1, characterized in that: The clamping structure (4) comprises a fixed clamp (41), a movable clamp (42) and a clamping hydraulic cylinder (43); the fixed clamp (41) is fixed to the handheld bracket (1); the movable clamp (42) is connected to the handheld bracket (1) in a lifting manner, and the movable clamp (42) is located above the fixed clamp (41); the movable end and the fixed end of the clamping hydraulic cylinder (43) are respectively fixed to the movable clamp (42) and the fixed clamp (41).

3. A building construction cutting device according to claim 2, characterized in that: The clamping hydraulic cylinder (43) is provided with a power structure (2), which includes an oil pump (21), an oil pot (22) and an electric control switch (23). The oil pump (21) is fixed to the handheld bracket (1) and is connected to the clamping hydraulic cylinder (43); the oil pot (22) is fixed to and is connected to the side of the oil pump (21) opposite to the clamping hydraulic cylinder (43); the electric control switch (23) is telescopically connected to the handheld bracket (1), and the electric control switch (23) is electrically connected to the oil pump (21).

4. A building construction cutting device according to claim 1, characterized in that: The gap adjustment structure (5) comprises an adjustment slider (51) and a positioning bolt (52); the adjustment slider (51) is sleeved and slidably connected to the cutting guide rail (31), and the cutting machine (32) abuts against the adjustment slider (51); the positioning bolt (52) is passed through the cutting guide rail (31), and the threaded end of the positioning bolt (52) is screwed to the adjustment slider (51), and the nut end of the positioning bolt (52) is misaligned with the adjustment slider (51) and abuts against the side wall of the cutting guide rail (31).

5. The building construction cutting device according to claim 1, characterized in that: The drive control structure (6) comprises a drive handle (61) and a return spring (62); the drive handle (61) is fixed to the cutting machine (32); one end of the return spring (62) is fixed to the cutting guide rail (31), and the other end fixes and drives the cutting machine (32) away from the fixed clamp (41).

6. A building construction cutting device according to claim 2, characterized in that: The cutting guide rail (31) is fixed to one end of the fixed clamp (41) close to the wall surface and extends toward one side of the movable clamp (42); the support plate (7) is fixed to both ends of the cutting guide rail (31) and is arranged in contact with the wall surface; the fixed clamp (41) is arranged in an arc shape toward one side of the cutting machine (32), and the arc of the fixed clamp (41) corresponds to the arc of the cutting machine (32); the movable clamp (42) extends toward the wall surface at a right angle, and the steel bar head is accommodated on the right angle side corresponding to the movable clamp (42).

7. The building construction cutting device according to claim 1, characterized in that: The bottom end of the support plate (7) is provided with a rounded corner on one side close to the wall.