Steel bar cutting device for building detection
By designing a rebar cutting device with a worm gear and hydraulic adjustment system, the problem of inconvenient fixing of rebars of different diameters was solved, achieving stable clamping and flexible adjustment of the cutting angle, thus improving cutting efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JIANCHEN TECHNOLOGY CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-05-08
AI Technical Summary
Existing steel bar cutting devices for building inspection are difficult to adapt to steel bars of different diameters, resulting in inconvenience in fixing and reducing the practicality of the devices.
A rebar cutting device including a fixing mechanism and an adjusting mechanism was designed. The fixing mechanism clamps rebars of different sizes through a worm gear and rack and pinion structure, while the adjusting mechanism adjusts the cutting angle and position through a hydraulic rod and a motor-driven gear system.
It achieves stable clamping of steel bars of different diameters and flexible adjustment of cutting angle, improving the practicality and cutting efficiency of the device.
Smart Images

Figure CN224209026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rebar cutting technology, and in particular to a rebar cutting device for building inspection. Background Technology
[0002] Building inspection is a professional technical activity that involves a comprehensive inspection, testing, and evaluation of a building's structural safety, material performance, and environmental impact. It involves the use of specialized instruments and scientific methods to conduct detailed inspections of the building's main structure and is an indispensable and important part of the building's entire life cycle management.
[0003] During building inspections, staff often need to obtain steel bar samples for analysis of mechanical properties and chemical composition, or cut off problematic steel bars in the building structure to carry out subsequent repair and reinforcement work.
[0004] The rebar cutting device for building inspection mainly consists of a motor, a bracket, a fixing groove, and a blade. During use, the motor, mounted on the bracket, drives the cutting blade to rotate, thereby cutting the rebar placed in the fixing groove. However, for high-strength rebar with special heat treatment and high alloy content, ordinary cutting blades experience severe wear during cutting, significantly reducing cutting efficiency. To address this issue, existing technology has developed new carbide cutting blades specifically for rebar of special materials, improving blade wear resistance and cutting performance, and employing a quick-release structure for rapid blade replacement. However, in actual use, the diameter of the rebar often varies considerably, and the internal space of the fixing groove is not easily altered, making it inconvenient to fix rebars of different diameters during use, thus reducing the device's practicality. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a steel bar cutting device for building inspection, which aims to improve the problem that existing steel bar cutting devices for building inspection are inconvenient to fix steel bars of different diameters during use.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a steel bar cutting device for building inspection, comprising a base, a fixing mechanism provided on the front side of the interior of the base, the fixing mechanism being used to conveniently clamp steel bars of different sizes, and an adjustment mechanism provided on the upper side of the base, the adjustment mechanism being used to conveniently adjust the processing angle of the steel bars;
[0007] The fixing mechanism includes a cavity located inside the front side of the base. A linkage rod is rotatably connected to the right side of the base, and the left side of the linkage rod passes through the cavity. Worms are fixedly connected to the left and right sides of the outer wall of the linkage rod. Rotating rods are rotatably connected to the left and right ends of the bottom inner side of the cavity. Worm gears are fixedly connected to the lower middle parts of the outer sides of the two rotating rods, respectively meshing with the corresponding worms. Gears are fixedly connected to the top of the two rotating rods. Limiting grooves are formed at the front and rear ends of the left and right sides inside the cavity. Clamping plates are slidably connected inside the multiple limiting grooves. A rack is fixedly connected to one side of the multiple clamping plates, and the multiple racks respectively mesh with the corresponding gears. The top of the clamping plates passes through the base.
[0008] As a further description of the above technical solution:
[0009] The adjustment mechanism includes an L-shaped plate, which is located on the rear side of the base. A first hydraulic rod is fixedly connected to the top inner side of the L-shaped plate. A fixed plate is fixedly connected to the output end of the first hydraulic rod. A protective shell is fixedly connected to the front side of the fixed plate. A first motor is fixedly connected to the front side of the protective shell. A gear two is fixedly connected to the output end of the first motor through the protective shell. A hollow movable plate is rotatably connected inside the protective shell. The top of the hollow movable plate meshes with the gear two. A cutting component is provided inside the hollow movable plate.
[0010] As a further description of the above technical solution:
[0011] The cutting assembly includes a blade protective shell, which is fixedly connected to the inside of a hollow movable plate. A cutting blade is disposed inside the blade protective shell, and a cross groove is formed in the middle of the cutting blade. A second motor is fixedly connected to the left side of the hollow movable plate. The output end of the second motor passes through the hollow movable plate and the blade protective shell in sequence and is fixedly connected to a cross plate. A telescopic groove is formed inside the right side of the hollow movable plate. A second hydraulic rod is fixedly connected to the top of the inner side of the telescopic groove. A baffle is fixedly connected to the output end of the second hydraulic rod. A fixing plug is disposed on the right side of the baffle, and the left end of the fixing plug passes through the baffle and the cross plate.
[0012] As a further description of the above technical solution:
[0013] A light is fixedly connected to the front inside of the L-shaped plate, and a cross scale plate is fixedly connected to the top of the base.
[0014] As a further description of the above technical solution:
[0015] Each of the multiple clamping plates has a rubber pad fixedly connected to one side, and the size of each rubber pad is matched with the size of the corresponding clamping plate.
[0016] As a further description of the above technical solution:
[0017] The base has U-shaped plates fixedly connected to the middle of both the left and right sides, and handles are rotatably connected inside the U-shaped plates.
[0018] As a further description of the above technical solution:
[0019] An opening slot is provided on the rear side of the base, and a lead screw is rotatably connected to the right side of the base. The left end of the lead screw passes through the opening slot and is threadedly connected to a movable block. The rear side of the movable block is fixedly connected to an L-shaped plate.
[0020] As a further description of the above technical solution:
[0021] A control panel is fixedly connected to the top of the L-shaped plate, and the control panel is electrically connected to the first motor, the second motor, the first hydraulic rod, and the second hydraulic rod.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the worm gear is driven to rotate by rotating the linkage rod. Since the worm wheel meshes with the worm, the worm wheel drives the gear to rotate through the rotating rod. The gear will drive the rack that meshes with it to move. Since the rack is fixed to the clamping plate, the clamping plate will also move when the rack moves. By moving multiple clamping plates at the same time, steel bars of different sizes can be clamped and limited, thereby improving the practicality of the device.
[0024] 2. In this utility model, by rotating the lead screw, the lead screw drives the movable block to move left and right. The movement of the movable block will move the L-shaped plate together. The L-shaped plate will drive the first hydraulic rod to move, thereby driving the protective shell to move, realizing the cutting of the steel bar at different positions. The first motor drives the second gear to rotate. Since the hollow movable plate meshes with the second gear, the hollow movable plate will drive the cutting blade to swing. The cutting angle of the steel bar can be adjusted according to the actual processing requirements, thereby meeting the needs of the user. Attached Figure Description
[0025] Figure 1 This is a perspective view of a steel bar cutting device for building inspection proposed in this utility model;
[0026] Figure 2 This is a front view of a steel bar cutting device for building inspection proposed in this utility model;
[0027] Figure 3 This is a structural cross-sectional view of the adjustment mechanism of a steel bar cutting device for building inspection proposed in this utility model;
[0028] Figure 4This is a structural cross-sectional view of the fixing mechanism of a steel bar cutting device for building inspection proposed in this utility model;
[0029] Figure 5 This is a partial structural schematic diagram of the fixing mechanism of a steel bar cutting device for building inspection proposed in this utility model;
[0030] Figure 6 This is a structural exploded view of the cutting component of a steel bar cutting device for building inspection proposed in this utility model.
[0031] Legend:
[0032] 1. Base; 2. Fixing mechanism; 21. Cavity; 22. Linkage rod; 23. Worm gear; 24. Worm wheel; 25. Rack; 26. Clamping plate; 27. Limiting groove; 28. Gear one; 29. Rotating rod; 210. Rubber pad; 3. Adjusting mechanism; 31. Opening groove; 32. Lead screw; 33. Movable block; 34. L-shaped plate; 35. First hydraulic rod; 36. Fixing plate; 37. Protective shell; 38. First motor; 39. Cutting assembly; 391. Blade protective shell; 392. Telescopic groove; 393. Second hydraulic rod; 394. Second motor; 395. Cutting blade; 396. Cross groove; 397. Cross blade; 398. Baffle; 399. Fixing plug; 310. Gear two; 311. Hollow movable plate; 312. Lighting lamp; 313. Control panel; 4. Cross scale plate; 5. U-shaped plate; 6. Handle. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figure 3 , Figure 4 and Figure 5 The present invention provides an embodiment of a steel bar cutting device for building inspection, comprising a base 1, a fixing mechanism 2 provided on the front side of the interior of the base 1, the fixing mechanism 2 being used to conveniently clamp steel bars of different sizes, and an adjustment mechanism 3 provided on the upper side of the base 1, the adjustment mechanism 3 being used to conveniently adjust the processing angle of the steel bars.
[0035] The fixing mechanism 2 includes a cavity 21, which is located inside the front side of the base 1. A linkage rod 22 is rotatably connected to the right side of the base 1. The left side of the linkage rod 22 passes through the cavity 21. Worms 23 are fixedly connected to the left and right sides of the outer wall of the linkage rod 22. Rotating rods 29 are rotatably connected to the left and right ends of the bottom inner side of the cavity 21. Worm wheels 24 are fixedly connected to the lower middle part of the outer side of the two rotating rods 29. The two worm wheels 24 are respectively meshed with the corresponding worms 23. Gears 28 are fixedly connected to the top of the two rotating rods 29. Limiting grooves 27 are opened on the front and rear ends of the left and right sides of the cavity 21. Clamping plates 26 are slidably connected inside the multiple limiting grooves 27. A rack 25 is fixedly connected to one side of the multiple clamping plates 26. The multiple racks 25 are respectively meshed with the corresponding gears 28. The top of the clamping plates 26 passes through the base 1.
[0036] Specifically, after placing the reinforcing bar on the base 1, the operator needs to rotate the linkage rod 22 located on the right front side of the base 1. The linkage rod 22 has worm gears 23 fixed at both ends. During the rotation of the linkage rod 22, the worm gear 23 is driven to rotate. Since the worm gear 23 meshes with the worm wheel 24, the rotation of the worm gear 23 drives the worm wheel 24 to rotate. Since the gear 28 is connected to the gear 28 through the rotating rod 29, the gear 28 is driven to rotate. The gear 28 meshes with the rack 25. The rotation of the gear 28 drives the rack 25 to move. The movement of the rack 25 drives the clamping plates 26 to move. The multiple clamping plates 26 can be adjusted according to the different sizes of the reinforcing bars placed in the limiting groove 27, so as to realize the cutting work of the reinforcing bars at different angles.
[0037] Reference Figure 1 , Figure 3 and Figure 6 The adjustment mechanism 3 includes an L-shaped plate 34, which is located on the rear side of the base 1. A first hydraulic rod 35 is fixedly connected to the top inner side of the L-shaped plate 34. A fixed plate 36 is fixedly connected to the output end of the first hydraulic rod 35. A protective shell 37 is fixedly connected to the front side of the fixed plate 36. A first motor 38 is fixedly connected to the front side of the protective shell 37. The output end of the first motor 38 passes through the protective shell 37 and is fixedly connected to a gear 310. A hollow movable plate 311 is rotatably connected inside the protective shell 37. The top of the hollow movable plate 311 meshes with the gear 310. A cutting component 39 is provided inside the hollow movable plate 311.
[0038] Specifically, by rotating the lead screw 32, the lead screw 32 drives the movable block 33 to move left and right. The movable block 33 is fixed to the L-shaped plate 34. The movement of the movable block 33 will move the L-shaped plate 34 together. The upper end of the first hydraulic rod 35 is connected to the L-shaped plate 34, and the output end is connected to the fixed plate 36. The L-shaped plate 34 will drive the first hydraulic rod 35 to move, and at the same time drive the fixed plate 36 to move in the same direction. Since the fixed plate 36 is connected to the first hydraulic rod 35 and the protective shell 37, it will drive the protective shell 37 to move, thereby realizing the cutting of the steel bar at different positions. The first motor 38 drives the gear 310 to rotate. Since the hollow movable plate 311 inside the protective shell 37 meshes with the gear 310, the hollow movable plate 311 will drive the cutting blade 395 to swing, thereby realizing the adjustment of the cutting blade 395 at different angles.
[0039] Reference Figure 1 , Figure 3 and Figure 6 The cutting assembly 39 includes a blade protective shell 391, which is fixedly connected to the inside of the hollow movable plate 311. A cutting blade 395 is provided inside the blade protective shell 391. A cross groove 396 is provided in the middle of the cutting blade 395. A second motor 394 is fixedly connected to the left side of the hollow movable plate 311. The output end of the second motor 394 passes through the hollow movable plate 311 and the blade protective shell 391 in sequence and is fixedly connected to a cross plate 397. A telescopic groove 392 is provided inside the right side of the hollow movable plate 311. A second hydraulic rod 393 is fixedly connected to the top of the inner side of the telescopic groove 392. A baffle 398 is fixedly connected to the output end of the second hydraulic rod 393. A fixing plug 399 is provided on the right side of the baffle 398. The left end of the fixing plug 399 passes through the baffle 398 and the cross plate 397.
[0040] Specifically, the second motor 394 on the hollow movable plate 311 drives the cutting blade 395 to rotate at high speed to perform cutting work. When the cutting blade 395 is damaged and needs to be replaced, the fixing plug 399 is pulled out to the right first, and then the second hydraulic rod 393 can drive the baffle 398 to move upward, which can provide space for the cutting blade 395 to move out of the cross plate 397, so as to realize the replacement of the cutting blade 395.
[0041] Reference Figure 1 , Figure 3 and Figure 4 U-shaped plates 5 are fixedly connected to the middle of the left and right sides of the base 1. A handle 6 is rotatably connected inside the U-shaped plate 5. Rubber pads 210 are fixedly connected to one side of multiple clamping plates 26. The size of the multiple rubber pads 210 matches the size of the corresponding clamping plates 26. A light 312 is fixedly connected to the front inside of the L-shaped plate 34. A cross scale plate 4 is fixedly connected to the top of the base 1.
[0042] Specifically, U-shaped plates 5 are fixed to the middle of the left and right sides of the base 1, and handles 6 are provided inside them, making it more convenient and effortless for the user to move the device when pausing use. Rubber pads 210 are fixed to one side of each of the multiple clamps, providing a more stable anti-slip effect after the rebar is placed on the base 1 and fixed in position. The cross scale plate 4 on the top of the base 1 allows the target cutting position data to be seen after the rebar is placed on the base 1, and allows the user to have better control over the cutting distance when performing cutting work. At the same time, the light 312 on the L-shaped plate 34 can provide additional light when the environment is dark or when the light source of the cross scale plate 4 and the rebar position is insufficient.
[0043] Reference Figure 1 , Figure 2 and Figure 3 A control panel 313 is fixedly connected to the top of the L-shaped plate 34. The control panel 313 is electrically connected to the first motor 38, the second motor 394, the first hydraulic rod 35, and the second hydraulic rod 393 respectively. An opening slot 31 is provided on the rear side of the base 1. A lead screw 32 is rotatably connected to the right side of the base 1. The left end of the lead screw 32 passes through the opening slot 31 and is threadedly connected to a movable block 33. The rear side of the movable block 33 is fixedly connected to the L-shaped plate 34.
[0044] Specifically, the operation of the first motor 38, the second motor 394, the first hydraulic rod 35, and the second hydraulic rod 393 can be controlled through the control panel 313. The first motor 38 and the second motor 394 are both model T-1600-4, the first hydraulic rod 35 is a QD series hydraulic support rod, and the second hydraulic rod 393 is an MPPMCK electric hydraulic push rod.
[0045] Working principle: When using this device, first place the steel bar to be processed on the base 1. Then, rotate the linkage rod 22 on the right front side of the base 1. Since the worm 23 is fixed at both ends of the linkage rod 22, the rotation of the linkage rod 22 drives the worm 23 to rotate. Since the worm 23 meshes with the worm wheel 24, the rotation of the worm 23 drives the worm wheel 24 to rotate, and the rotation rod 29 drives the gear 28 to rotate. Since the gear 28 meshes with the rack 25, the rotation of the gear 28 will drive the rack 25 to move. The rack 25 will then drive the clamping plate 26 to move. By moving multiple clamping plates 26 at the same time, the device can be adjusted according to the different sizes of the steel bars, so as to achieve the cutting of steel bars at different angles.
[0046] Furthermore, by rotating the lead screw 32, the lead screw 32 drives the movable block 33 to move left and right. The movable block 33 is fixed to the L-shaped plate 34. The movement of the movable block 33 will move the L-shaped plate 34 together. The L-shaped plate 34 will drive the first hydraulic rod 35 to move. Since the fixed plate 36 connects the first hydraulic rod 35 and the protective shell 37, it will drive the protective shell 37 to move, realizing the cutting of the steel bar at different positions. The first motor 38 drives the gear 2 310 to rotate. Since the hollow movable plate 311 inside the protective shell 37 meshes with the gear 2 310, the hollow movable plate 311 will drive the cutting blade 395 to swing. The cutting angle of the steel bar can be adjusted according to the actual processing requirements, thereby meeting the needs of the user.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A steel bar cutting device for building inspection, comprising a base (1), characterized in that: The base (1) is provided with a fixing mechanism (2) on the front side inside. The fixing mechanism (2) is used to conveniently clamp steel bars of different sizes. The base (1) is provided with an adjustment mechanism (3) on the upper side. The adjustment mechanism (3) is used to conveniently adjust the processing angle of the steel bars. The fixing mechanism (2) includes a cavity (21), which is located inside the front side of the base (1). A linkage rod (22) is rotatably connected to the right side of the base (1). The left side of the linkage rod (22) passes through the cavity (21). Worms (23) are fixedly connected to the left and right sides of the outer wall of the linkage rod (22). Rotating rods (29) are rotatably connected to the left and right ends of the bottom inner side of the cavity (21). Worm gears (24) are fixedly connected to the lower outer sides of the two rotating rods (29). The wheel (24) is meshed with the corresponding worm (23) respectively. The top of the two rotating rods (29) is fixedly connected with the first gear (28). The cavity (21) has limit grooves (27) on the left and right sides and front and rear ends. The limit grooves (27) are slidably connected with clamps (26). The clamps (26) are fixedly connected with racks (25) on one side. The racks (25) are meshed with the corresponding first gear (28) respectively. The top of the clamps (26) penetrates the base (1).
2. The steel bar cutting device for building inspection according to claim 1, characterized in that: The adjustment mechanism (3) includes an L-shaped plate (34), which is located on the rear side of the base (1). A first hydraulic rod (35) is fixedly connected to the top inner side of the L-shaped plate (34). A fixed plate (36) is fixedly connected to the output end of the first hydraulic rod (35). A protective shell (37) is fixedly connected to the front side of the fixed plate (36). A first motor (38) is fixedly connected to the front side of the protective shell (37). The output end of the first motor (38) passes through the protective shell (37) and is fixedly connected to a gear (310). A hollow movable plate (311) is rotatably connected inside the protective shell (37). The top of the hollow movable plate (311) meshes with the gear (310). A cutting component (39) is provided inside the hollow movable plate (311).
3. The steel bar cutting device for building inspection according to claim 2, characterized in that: The cutting assembly (39) includes a blade protective shell (391), which is fixedly connected to the inside of a hollow movable plate (311). A cutting blade (395) is disposed inside the blade protective shell (391), and a cross groove (396) is formed in the middle of the cutting blade (395). A second motor (394) is fixedly connected to the left side of the hollow movable plate (311), and the output end of the second motor (394) passes through the hollow movable plate (311) and the blade in sequence. A protective shell (391) is fixedly connected to a cross plate (397). A telescopic groove (392) is provided inside the right side of the hollow movable plate (311). A second hydraulic rod (393) is fixedly connected to the top of the inner side of the telescopic groove (392). A baffle (398) is fixedly connected to the output end of the second hydraulic rod (393). A fixing plug (399) is provided on the right side of the baffle (398). The left end of the fixing plug (399) passes through the baffle (398) and the cross plate (397).
4. A steel bar cutting device for building inspection according to claim 2, characterized in that: A lighting lamp (312) is fixedly connected to the front inside of the L-shaped plate (34), and a cross scale plate (4) is fixedly connected to the top of the base (1).
5. A steel bar cutting device for building inspection according to claim 1, characterized in that: A rubber pad (210) is fixedly connected to one side of each of the multiple clamping plates (26), and the size of each of the multiple rubber pads (210) is matched with the size of the corresponding clamping plate (26).
6. A steel bar cutting device for building inspection according to claim 1, characterized in that: The base (1) is fixedly connected to the middle of the left and right sides with U-shaped plates (5), and the U-shaped plates (5) are rotatably connected to handles (6).
7. A steel bar cutting device for building inspection according to claim 2, characterized in that: The base (1) has an opening slot (31) on its rear side. A lead screw (32) is rotatably connected to the right side of the base (1). The left end of the lead screw (32) passes through the opening slot (31) and is threadedly connected to a movable block (33). The rear side of the movable block (33) is fixedly connected to an L-shaped plate (34).
8. A steel bar cutting device for building inspection according to claim 2, characterized in that: The top of the L-shaped plate (34) is fixedly connected to a control panel (313), which is electrically connected to the first motor (38), the second motor (394), the first hydraulic rod (35), and the second hydraulic rod (393).