Steel bar cutting machine for building construction
By designing a steel bar cutting machine for building construction with multiple structures, the problems of difficulty in controlling the downward pressure distance, easy damage to the saw blade and safety hazards during the cutting process are solved, and an efficient, stable and safe cutting process is achieved.
Patent Information
- Application Number
- CN202411734120.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-02-25
AI Technical Summary
During the cutting process, traditional steel bar cutting machines are difficult to control the distance of the cutting machine to press, resulting in the saw blade being easily cut to the ground, which is damaged and cumbersome to operate; it requires water to pour out and cool down during cutting, but the plastic bottle is easy to shake or fall, and has poor stability; after cutting, the saw blade is exposed to the outside world, posing safety hazards and is prone to damage.
A steel bar cutting machine for construction is designed, including the cutting machine body, drive structure, saw blade, protective structure, fixed structure, rotary structure and support structure. Through the coordination of the rotating structure and the supporting structure, the precise control of the downward pressure distance of the cutting machine is achieved to prevent the saw blade from being cut to the ground; the protective structure and the fixed structure are used to fix the water bottle and protect the saw blade, which improves safety and service life.
Improve cutting efficiency, avoid saw blade damage, enhance the stability and safety of the equipment, and simplify the operation process.
Smart Images
Figure CN119500919A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of steel bar cutting machines, in particular to a steel bar cutting machine for building construction. Background Art
[0002] Rebar is a steel strip and is a very important building material in construction projects. During the construction process, different structural components have precise requirements for the length of the rebar. Therefore, a rebar cutting machine is often used in the construction process to cut the entire bundle of rebar to the appropriate length.
[0003] When cutting a whole bundle of steel bars, it is difficult to control the downward pressure of the traditional steel bar cutting machine, which may cause the cutting blade to cut on the ground, causing damage to the blade. The practicality is poor. When parked, the front cutting blade is usually directly supported on the ground, which is easy to deform under the action of external force. When it is necessary to repair parts on the equipment, others need to help lift the cutting machine, and the operation process is cumbersome. The cutting blade needs to be sprayed with water to cool it down during cutting. Therefore, a plastic bottle is usually tied with a rolling belt near the blade, and the bottom of the water spray pipe is connected to the plastic bottle. Since the contact surface between the plastic bottle and the rolling belt is small, the plastic bottle is easy to shake or fall during the cutting process, and the stability is poor; When the steel bar cutting machine is not needed, the cutting blade is usually still installed on the cutting machine and exposed to the outside. However, since the cutting blade is sharp, there is a safety hazard, and exposure to the outside can easily cause the cutting blade to be damaged, which has poor practicality. Summary of the invention
[0004] In view of the problems in the prior art, the present invention provides a steel bar cutting machine for construction.
[0005] The technical solution adopted by the present invention to solve the technical problem is: a steel bar cutting machine for construction, comprising a cutting machine body, a driving structure installed on the cutting machine body, a saw blade installed on the driving structure, a protective structure connected to the driving structure, a fixing structure connected to the protective structure, a rotating structure installed on the bottom surface of the cutting machine body, and a supporting structure arranged on the rotating structure; The rotation structure includes a mounting base and a third rotating shaft rotatably connected to the mounting base, the bottom surface of the cutting machine body is fixedly connected to the mounting base, the third rotating shaft is fixedly connected to a support rod, the back side of the support rod and the inner wall of the mounting base are in contact with each other, and the back side of the support rod and the bottom surface of the cutting machine body are fixedly connected with a first tension spring, the outer wall of the mounting base is fixedly connected to the mounting bracket, the mounting bracket is slidably connected with a pull rod, the pull rod is fixedly connected to a retaining ring, one side of the retaining ring is in contact with the mounting bracket, and the other side of the retaining ring is fixedly connected to the inner wall of the mounting bracket with a second spring, a plurality of first limiting holes are opened on the third rotating shaft, the end of the pull rod is engaged with the first limiting hole, and the support rod is matched with a supporting structure, the supporting structure includes a telescopic frame and two rollers rotatably connected to the telescopic frame, the telescopic frame is slidably connected to the inside of the support rod, and four second limiting holes are opened on the telescopic frame.
[0006] Specifically, a plurality of connecting frames are fixedly connected to the cutting machine body, and the pull rod is slidably connected to the connecting frames.
[0007] Specifically, a surface of the mounting seat close to the pull rod is in a "mouth"-shaped structure, the pull rod is in an "L"-shaped structure, and the mounting frame is in a "U"-shaped structure.
[0008] Specifically, a limiting rod is slidably connected to the support rod, a second tension spring is fixedly connected between one end of the limiting rod and the support rod, and the other end of the limiting rod is engaged in the second limiting hole.
[0009] Specifically, the cross section of the limiting rod is in a "T"-shaped structure, and the telescopic frame is in a "Y"-shaped structure.
[0010] Specifically, the driving structure includes a motor and a first pulley fixedly connected to the telescopic end of the motor, the tail end of the cutting machine body is fixedly connected to the motor, the front end of the cutting machine body is fixedly connected to a bearing seat, the internal rotation of the bearing seat is connected to a first rotating shaft, one end of the first rotating shaft is fixedly connected to a second pulley, a belt is wound between the first pulley and the second pulley, and the other end of the first rotating shaft is fixedly connected to a saw blade.
[0011] Specifically, a first protective cover is fixedly connected to a surface of the cutting machine body close to the first belt pulley and the second belt pulley, and the radius of the first belt pulley is greater than the radius of the second belt pulley.
[0012] Specifically, the protective structure includes a rotating ring and a second protective cover fixedly connected to the rotating ring, the rotating ring is rotatably connected to one end of the first rotating shaft close to the saw blade, a third protective cover is fixedly connected to a side of the cutting machine body close to the rotating ring, a slide groove is provided on the third protective cover, a plurality of limit grooves are provided in the slide groove, a slider is slidably connected to the bottom of the second protective cover, a first spring is fixedly connected between one end of the slider and the inner wall of the second protective cover, the other end of the slider is rotatably connected to a rotating rod, the rotating rod is rollingly connected to the slide groove, a limit block is fixedly connected to the rotating rod, and the limit block is engaged in the limit groove.
[0013] Specifically, the end of the rotating rod is rotatably connected to a rotating handle, the cross section of the sliding block is in a "T"-shaped structure, and the end of the sliding block is in an elliptical structure.
[0014] Specifically, the fixed structure includes a mounting block and two second rotating shafts rotatably connected to both ends of the mounting block. The third protective cover is fixedly connected to one side close to the second pulley with two mounting blocks. The two second rotating shafts are respectively rotatably connected to a first fixing ring and a second fixing ring. The first fixing ring and the second fixing ring are fixedly connected by bolts. The third protective cover is fixedly connected to a nozzle.
[0015] The beneficial effects of the present invention are: (1) The steel bar cutting machine for construction described in the present invention has a driving structure installed on the cutting machine body. The driving structure is used in conjunction with a saw blade. The setting of the driving structure is conducive to the saw blade to quickly cut a whole bundle of steel bars, and the cutting efficiency is high.
[0016] (2) The steel bar cutting machine for construction described in the present invention has a protective structure on the cutting machine body. The setting of the protective structure effectively avoids the problem of the saw blade being exposed to the outside world after the cutting is completed, thereby increasing the service life of the saw blade and achieving good protective effect.
[0017] (3) The steel bar cutting machine for construction described in the present invention has a fixing structure installed on the protective structure. The setting of the fixing structure is convenient for quickly fixing the bottle containing water, and has strong firmness.
[0018] The present invention discloses a steel bar cutting machine for construction, in which a rotating structure is installed on the ground of the cutting machine body, and the rotating structure is used in conjunction with a supporting structure. The setting of the rotating structure effectively solves the problem of the saw blade cutting into the ground due to the difficulty in controlling the degree of downward pressure of the cutting machine body during the cutting process. At the same time, it is convenient to support the cutting machine body when parking, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0020] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a steel bar cutting machine for construction provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of the structure of section A is shown; Figure 3 It is a schematic diagram of the connection structure between the support rod and the telescopic frame of the present invention; Figure 4 It is a schematic diagram of the connection structure between the third protective cover and the mounting block of the present invention; Figure 5 for Figure 4 An enlarged schematic diagram of the structure of part B is shown; Figure 6 It is a schematic diagram of the connection structure between the second protective cover and the third protective cover of the present invention; Figure 7 for Figure 6 An enlarged schematic diagram of the C-section structure is shown; Figure 8 It is a schematic diagram of the connection structure between the slide groove and the limit groove of the present invention; Fig. 9 It is a schematic diagram of the connection structure between the first pulley and the second pulley of the present invention.
[0021] In the figure: 1. cutting machine body; 2. driving structure; 201. motor; 202. first pulley; 203. belt; 204. bearing seat; 205. first rotating shaft; 206. second pulley; 207. first protective cover; 3. protective structure; 301. rotating ring; 302. second protective cover; 303. third protective cover; 304. slide; 305. slide block; 306. first spring; 307. rotating rod; 308. limit block; 309. rotating handle; 310. limit slot; 4. fixing structure; 401. mounting block; 4 02, second rotating shaft; 403, first fixing ring; 404, second fixing ring; 405, bolt; 406, nozzle; 5, rotating structure; 501, mounting seat; 502, third rotating shaft; 503, support rod; 504, first tension spring; 505, mounting frame; 506, pull rod; 507, retaining ring; 508, second spring; 509, first limiting hole; 510, connecting frame; 6, supporting structure; 601, telescopic frame; 602, roller; 603, second limiting hole; 604, limiting rod; 605, second tension spring; 7, saw blade. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0023] like Figure 1 , Figure 4 , Figure 5 , Figure 6 and Fig. 9 As shown, a steel bar cutting machine for construction described in the present invention comprises a cutting machine body 1, a driving structure 2 installed on the cutting machine body 1, a saw blade 7 installed on the driving structure 2, a protective structure 3 connected to the driving structure 2, a fixed structure 4 connected to the protective structure 3, a rotating structure 5 installed on the bottom surface of the cutting machine body 1, and a supporting structure 6 arranged on the rotating structure 5, wherein the driving structure 2 comprises a motor 201 and a first pulley 202 fixedly connected to the telescopic end of the motor 201, the tail end of the cutting machine body 1 is fixedly connected to the motor 201, the front end of the cutting machine body 1 is fixedly connected to the bearing seat 204, the inner part of the bearing seat 204 is rotatably connected to a first rotating shaft 205, one end of the first rotating shaft 205 is fixedly connected to a second pulley 206, a belt 203 is wound between the first pulley 202 and the second pulley 206, and the other end of the first rotating shaft 205 is fixedly connected to the second pulley 206. A saw blade 7 is connected, and a first protective cover 207 is fixedly connected to one side of the cutting machine body 1 close to the first pulley 202 and the second pulley 206, and the radius of the first pulley 202 is greater than the radius of the second pulley 206; when starting cutting, the power of the cutting machine body 1 is turned on, and the first pulley 202 at the output end of the motor 201 drives the second pulley 206 to rotate through the belt 203, and the second pulley 206 drives the first rotating shaft 205 inside the bearing seat 204 to rotate, and the first rotating shaft 205 drives the saw blade 7 at the other end to rotate, so as to facilitate the cutting of the steel bar bundle, and the cutting efficiency is high. Moreover, due to the rotational connection between the first rotating shaft 205 and the rotating ring 301 at the end, the first rotating shaft 205 is prevented from driving the second protective cover 302 to rotate, and the flexibility is strong. At the same time, the first protective cover 207 installed on the cutting machine body 1 has a good protective effect on the first pulley 202, the second pulley 206 and the belt 203.
[0024] Specifically, Figure 1-Figure 6As shown, the rotating structure 5 includes a mounting seat 501 and a third rotating shaft 502 rotatably connected to the mounting seat 501, the bottom surface of the cutting machine body 1 is fixedly connected with the mounting seat 501, the third rotating shaft 502 is fixedly connected with a support rod 503, the back side of the support rod 503 and the inner wall of the mounting seat 501 are in conflict with each other, a first tension spring 504 is fixedly connected between the back side of the support rod 503 and the bottom surface of the cutting machine body 1, a mounting frame 505 is fixedly connected to the outer wall of the mounting seat 501, a pull rod 506 is slidably connected to the mounting frame 505, and a retaining ring is fixedly connected to the pull rod 506 507, one side of the retaining ring 507 abuts against the mounting frame 505, a second spring 508 is fixedly connected between the other side of the retaining ring 507 and the inner wall of the mounting frame 505, a plurality of first limiting holes 509 are opened on the third rotating shaft 502, the end of the pull rod 506 is engaged with the first limiting hole 509, a plurality of connecting frames 510 are fixedly connected to the cutting machine body 1, the pull rod 506 is slidably connected to the connecting frame 510, a side of the mounting seat 501 close to the pull rod 506 is in a "mouth" shape, the pull rod 506 is in an "L" shape, and the mounting frame 505 is in a "U" shape;The bottom of the whole bundle of steel bars is supported by wooden blocks, so that a certain gap is reserved between the bottom surface of the steel bars and the ground. Then, the handle at the front end of the cutting machine body 1 is pulled by hand to move the cutting machine body 1 to the vicinity of the steel bars so that the cutting machine body 1 and the steel bars are in a vertical state. The handle is continued to be pulled until the roller 602 at the bottom end of the cutting machine body 1 contacts the steel bars. Then, the "L"-shaped pull rod 506 on the bottom surface of the cutting machine body 1 is pulled backward to make the end of the pull rod 506 slide out from the inside of the first limiting hole 509. At this time, the pull rod 506 is no longer in contact with the roller 602 on the third rotating shaft 502. The first limiting hole 509 is engaged, and then the handle of the cutting machine body 1 is pulled continuously, and then the roller 602 drives the telescopic frame 601 and the support rod 503 to rotate around the third rotating shaft 502 under the resistance of the steel bars, and at the same time, the handle of the cutting machine body 1 is pressed downward. At this time, the support rod 503 drives the telescopic frame 601 and the roller 602 to rotate backward, and the angle between the telescopic frame 601 and the saw blade 7 gradually increases. Then, the downward pressing distance of the cutting machine body 1 is controlled according to the distance between the saw blade 7 and the ground, and the pressing down of the cutting machine body 1 is stopped when the saw blade 7 has just finished cutting the entire bundle of steel bars. The pull rod 506 is then released, and the retaining ring 507 at the end of the pull rod 506 drives the pull rod 506 to slide along the inner wall of the mounting bracket 505 under the reset action of the second spring 508, until the end of the pull rod 506 is engaged with another first limiting hole 509 on the third rotating shaft 502. At this time, the third rotating shaft 502 cannot rotate with the mounting seat 501, thereby effectively limiting the position of the roller 602, and thus in the process of cutting the steel bars, it is avoided that the saw blade 7 cuts into the ground due to the difficulty in controlling the downward pressure of the cutting machine body 1. The problem of the saw blade 7 is solved, thereby extending the service life of the saw blade 7, and the flexibility is strong. At the same time, the bottom surface of the cutting machine body 1 is provided with a plurality of connecting frames 510 for supporting the pull rod 506, which improves the stability of the pull rod 506 during the movement. After the steel bar is cut, the pull rod 506 is pulled outward again, so that the end of the pull rod 506 slides out of the first limit hole 509. At this time, the support rod 503 rotates to the initial position under the reset action of the first tension spring 504, thereby driving the roller 602 to return to the initial position, which is beneficial to support the cutting machine body 1, and has strong stability. ;
[0025] Specifically, Figure 1-Figure 4 and Fig. 9As shown, the support rod 503 is equipped with a support structure 6, and the support structure 6 includes a telescopic frame 601 and two rollers 602 rotatably connected to the telescopic frame 601, the support rod 503 is internally slidably connected to the telescopic frame 601, and four second limiting holes 603 are provided on the telescopic frame 601, and a limiting rod 604 is slidably connected to the support rod 503, and a second tension spring 605 is fixedly connected between one end of the limiting rod 604 and the support rod 503, and the other end of the limiting rod 604 is engaged with the second limiting hole 603, and the cross-section of the limiting rod 604 is a "T"-shaped structure, and the telescopic frame 601 is a "Y"-shaped structure; when repairing or installing parts on the cutting machine body 1, it is necessary to ensure that the cutting machine body 1 is in a stable state. The cutting machine body 1 is kept parallel to the bottom surface or at other angles that are convenient for operation. At this time, it is only necessary to pull the limiting rod 604 at the end of the support rod 503 outward so that the end of the limiting rod 604 is no longer engaged with the second limiting hole 603 on the telescopic frame 601, and then the telescopic frame 601 can be slid up and down inside the support rod 503. When it is adjusted to a suitable position, the limiting rod 604 is released, and the end of the limiting rod 604 is driven to re-engage with the other second limiting hole 603 on the telescopic frame 601 under the resetting action of the second tension spring 605. At this time, the distance that the telescopic frame 601 and the roller 602 are pulled out outward is effectively adjusted, thereby facilitating the cutting machine body 1 to be at a suitable tilt angle, facilitating the subsequent installation or maintenance of parts, and having strong flexibility.
[0026] Specifically, Figure 1 and Figure 4-Figure 9As shown, the protective structure 3 includes a rotating ring 301 and a second protective cover 302 fixedly connected to the rotating ring 301, the rotating ring 301 is rotatably connected to one end of the first rotating shaft 205 close to the saw blade 7, a third protective cover 303 is fixedly connected to one side of the cutting machine body 1 close to the rotating ring 301, a slide groove 304 is provided on the third protective cover 303, a plurality of limit grooves 310 are provided in the slide groove 304, a slider 305 is slidably connected to the bottom of the second protective cover 302, a first spring 306 is fixedly connected between one end of the slider 305 and the inner wall of the second protective cover 302, and the slider 305 The other end is rotatably connected to a rotating rod 307, and the rotating rod 307 is rollingly connected to the slide slot 304. A limit block 308 is fixedly connected to the rotating rod 307, and the limit block 308 is engaged with the limit slot 310. The end of the rotating rod 307 is rotatably connected to a rotating handle 309. The cross section of the slider 305 is a "T"-shaped structure, and the end of the slider 305 is an elliptical structure. In order to avoid the problem that the saw blade 7 is directly exposed to the outside after the cutting is completed, it is only necessary to pull the rotating handle 309 outwards. At this time, the rotating handle 309 drives the rotating rod 307 and the slider 305 to slide toward the outside of the third protective cover 303. The rod 307 drives the limit block 308 to slide out of the limit groove 310 on the slide groove 304, and the slider 305 compresses the first spring 306, and then drives the rotating rod 307 to roll along the slide groove 304 by turning the handle 309. Since the end of the slider 305 is an elliptical structure, the rotating rod 307 can effectively prevent the slider 305 from rotating on the inner wall of the second protective cover 302, thereby preventing the first spring 306 from deforming. At this time, the rotating rod 307 drives the slider 305 to move along the slide groove 304, and the slider 305 drives the second protective cover 302 and the rotating ring 301 at the center position to rotate around the first rotating shaft 205 until the rotating rod 307 drives the slider 305 to rotate. The rod 307 rolls to the other end of the slide groove 304, and at the same time, the second protective cover 302 rotates around the first rotating shaft 205 to just below the saw blade 7, and then the rotating handle 309 is released, and then the rotating rod 307, under the resetting action of the first spring 306, drives the limit block 308 to engage with the limit groove 310 at another corresponding position on the slide groove 304, thereby effectively limiting the position of the second protective cover 302 after rotation. At this time, the second protective cover 302 and the third protective cover 303 on the cutting machine body 1 form a complete circle, and the saw blade 7 is covered in the internal cavity between the two, thereby protecting the saw blade 7 and improving safety.
[0027] Specifically, Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Fig. 9As shown, the fixing structure 4 includes a mounting block 401 and two second rotating shafts 402 rotatably connected to both ends of the mounting block 401. The third protective cover 303 is fixedly connected to the second belt pulley 206 on one side thereof. The first fixing ring 403 and the second fixing ring 404 are rotatably connected to the two second rotating shafts 402 respectively. The first fixing ring 403 and the second fixing ring 404 are fixedly connected by bolts 405. The third protective cover 303 is fixedly connected to a nozzle 406. Before cutting, a bottle filled with water needs to be mounted on the first On the three protective covers 303, it is only necessary to open the first fixing ring 403 and the second fixing ring 404 outwardly through the second rotating shaft 402, and then the water bottle is pressed against the mounting block 401, and then the first fixing ring 403 and the second fixing ring 404 are made to cover the outer shell of the water bottle, and the first fixing ring 403 and the second fixing ring 404 are fixed by bolts 405. At this time, the water bottle is fixed with strong firmness, and then the interface at the bottom of the water bottle is connected to the nozzle 406 through the connecting pipe, so that it is convenient to spray water outward through the nozzle 406 to cool the saw blade 7 during the cutting process, which is very practical.
[0028] When the present invention is in use, the bottom of the whole bundle of steel bars is supported by wooden blocks so that a certain gap is reserved between the bottom surface of the steel bars and the ground. Then, the handle at the front end of the cutter body 1 is pulled by hand to pull the cutter body 1 to move near the steel bars so that the cutter body 1 and the steel bars are in a vertical state. The handle is continued to be pulled until the roller 602 at the bottom end of the cutter body 1 contacts the steel bars. Then, the "L"-shaped pull rod 506 on the bottom surface of the cutter body 1 is pulled backward so that the end of the pull rod 506 slides out from the inside of the first limiting hole 509. At this time, the pull rod 506 is no longer engaged with the first limiting hole 509 on the third rotating shaft 502. Then, the handle of the cutter body 1 is continued to be pulled, and then the roller 602 drives the telescopic frame 601 and The support rod 503 rotates around the third rotating shaft 502 and presses the handle of the cutting machine body 1 downward. At this time, the support rod 503 drives the telescopic frame 601 and the roller 602 to rotate backward, and the angle between the telescopic frame 601 and the saw blade 7 gradually increases. Then, the downward pressing distance of the cutting machine body 1 is controlled according to the distance between the saw blade 7 and the ground. When the saw blade 7 has just cut the entire bundle of steel bars, the cutting machine body 1 is stopped and the pull rod 506 is released. Then, the retaining ring 507 at the end of the pull rod 506 drives the pull rod 506 to slide along the inner wall of the mounting frame 505 under the reset action of the second spring 508, until the end of the pull rod 506 is engaged with the other first limiting hole 509 on the third rotating shaft 502. At this time, the third rotating shaft 502 is The support rod 503 is in a position to move the roller 602 downwards and the ... The cutting machine body 1 is supported and has strong stability. When repairing or installing parts on the cutting machine body 1, it is necessary to ensure that the cutting machine body 1 is parallel to the bottom surface or at other angles that are convenient for operation. At this time, it is only necessary to pull the limiting rod 604 at the end of the support rod 503 outward so that the end of the limiting rod 604 is no longer engaged with the second limiting hole 603 on the telescopic frame 601, and then the telescopic frame 601 can slide up and down inside the support rod 503. When it is adjusted to a suitable position, the limiting rod 604 is released, and the end of the limiting rod 604 is driven to re-engage with the other second limiting hole 603 on the telescopic frame 601 under the reset action of the second tension spring 605. At this time, the distance that the telescopic frame 601 and the roller 602 are pulled outward is effectively adjusted.This facilitates ensuring that the cutting machine body 1 is at a suitable tilt angle, which is convenient for subsequent installation or maintenance of parts and has high flexibility; When starting to cut, turn on the power of the cutting machine body 1. At this time, the first pulley 202 at the output end of the motor 201 drives the second pulley 206 to rotate through the belt 203, and the second pulley 206 drives the first rotating shaft 205 inside the bearing seat 204 to rotate. The first rotating shaft 205 drives the saw blade 7 at the other end to rotate, so as to facilitate the cutting of the steel bar bundle, and the cutting efficiency is high. Since the first rotating shaft 205 is rotatably connected with the rotating ring 301 at the end, the first rotating shaft 205 is prevented from driving the second protective cover 302 to rotate, and the flexibility is strong. At the same time, the first protective cover 207 installed on the cutting machine body 1 plays a good protective role on the first pulley 202, the second pulley 206 and the belt 203. Before cutting, the bottle filled with water needs to be mounted on the third protective cover 303. The first fixing ring 403 and the second fixing ring 404 only need to be opened outwards by the second rotating shaft 402, and then the water bottle is pressed against the mounting block 401, and then the first fixing ring 403 and the second fixing ring 404 cover the outer shell of the water bottle, and the first fixing ring 403 and the second fixing ring 404 are fixed by bolts 405. At this time, the fixing of the water bottle is completed, and the firmness is strong. Then, the interface at the bottom of the water bottle is connected to the nozzle 406 through a connecting pipe, so that it is convenient to spray water outwards through the nozzle 406 to cool the saw blade 7 during the cutting process, which is highly practical. In order to avoid the problem that the saw blade 7 is directly exposed to the outside after the cutting is completed, it is only necessary to pull the rotating handle 309 outwards. At this time, the rotating handle 309 drives the rotating rod 307 and the slider 305 to slide toward the outside of the third protective cover 303, and the rotating rod 307 drives the limit block 308 to slide out from the limit groove 310 on the slide groove 304. At the same time, the slider 305 compresses the first spring 306, and then drives the rotating rod 307 to roll along the slide groove 304 by rotating the handle 309. Since the end of the slider 305 is an elliptical structure, it can effectively prevent the rotating rod 307 from driving the slider 305 to rotate on the inner wall of the second protective cover 302, thereby preventing the first spring 306 from being deformed. At this time, the rotating rod 307 drives the slider 305 to move along the slide groove 304. 05 drives the second protective cover 302 and the rotating ring 301 at the center position to rotate around the first rotating shaft 205 until the rotating rod 307 rolls to the other end of the slide groove 304, and the second protective cover 302 rotates around the first rotating shaft 205 to just below the saw blade 7, and then the rotating handle 309 is released, and then the rotating rod 307, under the resetting action of the first spring 306, drives the limit block 308 to engage with the limit groove 310 at another corresponding position on the slide groove 304, thereby effectively limiting the position of the second protective cover 302 after rotation. At this time, the second protective cover 302 and the third protective cover 303 on the cutting machine body 1 form a complete circle, and the saw blade 7 is covered in the internal cavity between the two, thereby protecting the saw blade 7 and improving safety.
[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A steel bar cutting machine for construction, characterized in that: The invention comprises a cutting machine body (1), a driving structure (2) mounted on the cutting machine body (1), a saw blade (7) mounted on the driving structure (2), a protective structure (3) connected to the driving structure (2), a fixing structure (4) connected to the protective structure (3), a rotating structure (5) mounted on the bottom surface of the cutting machine body (1), and a supporting structure (6) arranged on the rotating structure (5); The rotating structure (5) comprises a mounting seat (501) and a third rotating shaft (502) rotatably connected to the mounting seat (501); the mounting seat (501) is fixedly connected to the bottom surface of the cutting machine body (1); a support rod (503) is fixedly connected to the third rotating shaft (502); the back surface of the support rod (503) and the inner wall of the mounting seat (501) are in contact with each other; a first tension spring (504) is fixedly connected between the back surface of the support rod (503) and the bottom surface of the cutting machine body (1); a mounting frame (505) is fixedly connected to the outer wall of the mounting seat (501); a pull rod (506) is slidably connected to the mounting frame (505); a retaining ring (506) is fixedly connected to the pull rod (506). 7), one side of the retaining ring (507) abuts against the mounting frame (505), a second spring (508) is fixedly connected between the other side of the retaining ring (507) and the inner wall of the mounting frame (505), a plurality of first limiting holes (509) are provided on the third rotating shaft (502), the end of the pull rod (506) is engaged with the first limiting hole (509), the support rod (503) is matched with a support structure (6), the support structure (6) comprises a telescopic frame (601) and two rollers (602) rotatably connected to the telescopic frame (601), the support rod (503) is internally slidably connected to the telescopic frame (601), and the telescopic frame (601) is provided with four second limiting holes (603).
2. A steel bar cutting machine for construction according to claim 1, characterized in that: A plurality of connecting frames (510) are fixedly connected to the cutting machine body (1), and the pull rod (506) is slidably connected to the connecting frames (510).
3. A steel bar cutting machine for construction according to claim 1, characterized in that: A surface of the mounting seat (501) close to the pull rod (506) is in a "mouth" shape, the pull rod (506) is in an "L" shape, and the mounting frame (505) is in a "U" shape.
4. A steel bar cutting machine for construction according to claim 1, characterized in that: The support rod (503) is slidably connected to a limiting rod (604), a second tension spring (605) is fixedly connected between one end of the limiting rod (604) and the support rod (503), and the other end of the limiting rod (604) is engaged with the second limiting hole (603).
5. A steel bar cutting machine for construction according to claim 4, characterized in that: The cross section of the limiting rod (604) is in a "T"-shaped structure, and the telescopic frame (601) is in a "Y"-shaped structure.
6. A steel bar cutting machine for construction according to claim 1, characterized in that: The driving structure (2) comprises a motor (201) and a first pulley (202) fixedly connected to the telescopic end of the motor (201); the rear end of the cutting machine body (1) is fixedly connected to the motor (201); the front end of the cutting machine body (1) is fixedly connected to a bearing seat (204); the interior of the bearing seat (204) is rotatably connected to a first rotating shaft (205); one end of the first rotating shaft (205) is fixedly connected to a second pulley (206); a belt (203) is wound between the first pulley (202) and the second pulley (206); and the other end of the first rotating shaft (205) is fixedly connected to a saw blade (7).
7. A steel bar cutting machine for construction according to claim 6, characterized in that: A first protective cover (207) is fixedly connected to a surface of the cutting machine body (1) close to the first belt pulley (202) and the second belt pulley (206); the radius of the first belt pulley (202) is greater than the radius of the second belt pulley (206).
8. A steel bar cutting machine for construction according to claim 6, characterized in that: The protective structure (3) comprises a rotating ring (301) and a second protective cover (302) fixedly connected to the rotating ring (301); an end of the first rotating shaft (205) close to the saw blade (7) is rotatably connected to the rotating ring (301); a surface of the cutting machine body (1) close to the rotating ring (301) is fixedly connected to a third protective cover (303); a slide groove (304) is provided on the third protective cover (303); and a plurality of limit grooves (310) are provided in the slide groove (304). The bottom of the second protective cover (302) is slidably connected to a slider (305), one end of the slider (305) is fixedly connected to the inner wall of the second protective cover (302) with a first spring (306), the other end of the slider (305) is rotatably connected to a rotating rod (307), the rotating rod (307) is rollingly connected to the slide groove (304), the rotating rod (307) is fixedly connected to a limiting block (308), and the limiting block (308) is engaged with the limiting groove (310).
9. A steel bar cutting machine for construction according to claim 8, characterized in that: The end of the rotating rod (307) is rotatably connected to a rotating handle (309); the cross section of the sliding block (305) is in a "T"-shaped structure; the end of the sliding block (305) is in an elliptical structure.
10. A steel bar cutting machine for construction according to claim 8, characterized in that: The fixed structure (4) comprises a mounting block (401) and two second rotating shafts (402) rotatably connected to two ends of the mounting block (401); a surface of the third protective cover (303) close to the second pulley (206) is fixedly connected to the two mounting blocks (401); a first fixing ring (403) and a second fixing ring (404) are rotatably connected to the two second rotating shafts (402), respectively; the first fixing ring (403) and the second fixing ring (404) are fixedly connected via bolts (405); and a nozzle (406) is fixedly connected to the third protective cover (303).