Building construction brick cutter

Abstract

The utility model belongs to the technical field of building construction devices, and particularly relates to a building construction brick cutter which comprises a supporting frame, the supporting frame is of a hollow structure with an upper opening and a lower opening, and a ball screw is rotationally connected to the center in the supporting frame. The brick cutting device is simple and stable in structure, telescopic rods of the two hydraulic cylinders move to drive a fixing plate and a brick cutting blade to move downwards or upwards, bricks are cut through the brick cutting blade, the inconvenience caused when a cutter needs to be manually controlled in a traditional brick cutting device is changed, manpower consumption is reduced, and the brick cutting efficiency is improved. Meanwhile, the brick cutting efficiency is improved; according to the brick cutting device, the baffle and the scale marks are arranged, and the cutting length of the brick is judged through the protrusions on the baffle, so that an operator can judge whether the cut brick is suitable or not according to the actual requirement and the scale marks, and the brick cutting accuracy is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction devices, in particular to a building construction brick cutter. Background Art

[0002] In the process of construction, bricks often need to be cut, but manual brick cutting is too cumbersome, so brick cutters are produced. Their mechanical cutting function replaces the original heavy labor of manual chopping and manual sawing, increasing the sales volume of work. Therefore, the existing brick cutter technology has been continuously innovated and developed. Therefore, the current brick cutters basically meet people's needs, but there are still some problems.

[0003] For example, the Chinese patent with publication number CN219076137U discloses a construction brick cutter, including a moving component group, the moving component group includes a moving base, a screw is arranged inside the moving base, a control knob is arranged at one end of the screw, a limit rod is arranged inside the moving base, and a fixed component group is arranged on one side of the moving base, the fixed component group includes a fixed seat, a rotary handle is arranged inside the fixed seat, and a brick pressing piece is arranged at one end of the rotary handle. The screw connection method of the utility model makes the movement and alignment operation more accurate. Compared with the existing manual alignment method, the screw moving brick alignment method greatly reduces the error caused by brick cutting.

[0004] This patent has some disadvantages when used, such as: the device controls the vertical displacement of the brick cutting guillotine by rotating the control rod, but the device rotates the rotating control rod by human control. When the rotating control rod contacts the brick surface, the brick cutting guillotine will feedback a reverse force to the operator through the telescopic rod and the rotating control rod, so that the operator needs to use more force to rotate the rotating control rod to make the brick cutting guillotine descend. This process is extremely time-consuming and labor-intensive, and the loss of manpower is relatively serious; in addition, there is no corresponding scale mechanism in the device, which cannot guarantee the accuracy requirements for brick cutting. In view of this, we propose a brick cutter for construction. Utility Model Content

[0005] The purpose of the utility model is to provide a brick cutter for construction to solve the problems raised in the above background technology.

[0006] In view of this, the utility model provides a brick cutter for construction, comprising:

[0007] A support frame, wherein the support frame is a hollow structure with upper and lower openings, a ball screw is rotatably connected to the center of the support frame, a placement table is threadedly connected to the inner wall of the support frame, a shaped frame is fixed to the upper surface of the support frame, a hydraulic cylinder is symmetrically fixed to the lower surface of the shaped frame, a fixing plate is fixed to the ends of the telescopic rods of the two hydraulic cylinders, and a brick cutting blade is fixed to the lower surface of the fixing plate;

[0008] A baffle, the baffle being fixedly mounted on the side wall of the placement table, and a scale line being fixed on the upper surface of the support frame and on the peripheral side of the shaped frame;

[0009] Four fixing components, which are symmetrically arranged and are all located on the upper surface of the placement table, and are used to clamp and fix the bricks;

[0010] A rotary rod, the rotary rod is rotatably mounted on the peripheral side of the support frame, and one end of the rotary rod penetrates the outer wall of the support frame and extends into the support frame to be coaxially connected with the ball screw;

[0011] A limit assembly, which is located on the rotating rod and is used to constrain and limit the rotation of the rotating rod;

[0012] A base, the base is fixedly installed directly below the support frame, and a vertical groove and two horizontal grooves are opened on the lower surface of the base, and the vertical grooves and the horizontal grooves are vertically distributed;

[0013] A moving component, which is located in the vertical slot and the horizontal slot and is used to facilitate movement of the device;

[0014] Four supporting legs are symmetrically arranged and respectively fixedly mounted on the lower surface of the base near four corners.

[0015] In the present technical scheme, the device has a simple and stable structure. The movement of the telescopic rods of the two hydraulic cylinders drives the fixed plate and the brick cutting blade to move downward or upward, and the brick cutting blade is used to cut the bricks, which changes the inconvenience of the traditional brick cutting device that requires manual control of the cutter, saves manpower consumption, and improves the efficiency of cutting bricks. By setting a baffle and a scale line, the protrusion on the baffle is used to judge the cutting length of the brick, so that the operator can judge whether the cut brick is suitable according to actual needs and in combination with the scale line, which greatly improves the accuracy of brick cutting.

[0016] In the above technical solution, further, the fixing component:

[0017] A fixing seat is fixedly mounted on the upper surface of the placing table, a fixing knob is rotatably mounted on the fixing seat, one end of the fixing knob passes through the fixing seat and is rotatably connected to a clamping block.

[0018] In the present technical solution, by providing a fixing assembly, the bricks can be stably fixed on the upper surface of the placement table, thereby preventing the bricks from being displaced when being cut.

[0019] In the above technical solution, further, the side wall of the support frame is symmetrically provided with slag discharge holes.

[0020] In the technical solution, by providing a slag discharge hole, it is convenient for operators to clean the brick dust that falls into the inner cavity of the support frame.

[0021] In the above technical solution, further, the limit assembly includes:

[0022] A limit seat, the limit seat is fixedly mounted on the outer wall of the support frame close to the rotating rod side, a bearing groove is provided on the inner side surface of the limit seat, a ball bearing is installed in the bearing groove, a circular hole is provided at the axis center of the bearing groove, a limit knob is rotatably connected in the circular hole, and the limit knob cooperates with the ball bearing, a fastening groove with a circular cross-section is provided in the limit knob, an internal thread is provided at the tail of the fastening groove, a truncated cone-shaped fastener is connected to the internal thread of the fastening groove, one end of the fastener is provided with an external thread matched with the internal thread of the fastening groove, and the other end of the fastener is a truncated cone-shaped structure formed by multiple blades closed together, and one end of the rotating rod sequentially penetrates the limit knob, the fastener and the outer wall of the support frame and is coaxially connected to the ball screw.

[0023] In this technical solution, by setting a limit knob and a fastener, and utilizing the cooperation between multiple blades and fastening grooves on the fastener, the fastener can effectively constrain the rotating rod, ensuring that the fixed seat will not rotate when not subjected to external force, thereby ensuring accuracy and stability when cutting bricks.

[0024] In the above technical solution, further, the fastener is an integrally formed structure.

[0025] In the technical solution, the fastener is arranged as an integrally formed structure, thereby ensuring the stability of the fastener when clamping the rotary rod.

[0026] In the above technical solution, further, the moving component includes:

[0027] A double-axis motor, wherein the two output shafts of the double-axis motor are coaxially connected with a worm, the circumferential side of the worm is meshed with a worm wheel, the worm wheel is coaxially connected with a connecting rod, one end of the connecting rod passes through the vertical groove and extends into the horizontal groove on the corresponding side, and the connecting rod is coaxially connected with a bidirectional threaded rod, both ends of the bidirectional threaded rod are symmetrically rotatably connected with a fixing ring fixed to the top surface in the horizontal groove, the fixing ring is symmetrically threaded with a threaded block slidably connected to the horizontal groove, the bottom of the threaded block is rotatably connected with a pulling arm, a rotating block is symmetrically fixed in the horizontal groove, and a support rod is rotatably connected to the rotating block, a rotating protrusion is provided at the lower part of the inner side wall of the support rod, the other end of the pulling arm is rotatably matched with the rotating protrusion on the support rod on the corresponding side, and a self-locking universal wheel is fixed to the bottom of the support rod.

[0028] In the present technical solution, a moving component is provided, driven by a dual-axis motor, and transmitted through a worm, a worm gear, a connecting rod, a bidirectional threaded rod, etc. The displacement of the threaded block is used to pull the pulling arm or push the pulling arm, thereby controlling the retraction and extension of the support rod, so that the device can be stably fixed on the ground and can also be easily moved.

[0029] In the above technical solution, further, one end of the baffle is provided with a protrusion pointing to the scale line.

[0030] In the technical solution, a protrusion is provided at one end of the baffle, so that the operator can observe the cutting length of the brick more easily.

[0031] In the above technical solution, further, sliding rods fixed to the inner wall of the support frame are symmetrically arranged on both sides of the ball screw, and the sliding rods are slidably matched with the placement table.

[0032] In the technical solution, two sliding rods are provided so that the placement table can slide more stably in the inner cavity of the support frame.

[0033] The beneficial effects of the utility model are:

[0034] 1. The brick cutter for construction has a simple and stable structure. The telescopic rods of the two hydraulic cylinders are used to move the fixed plate and the brick cutting blade downward or upward, and the brick cutting blade is used to cut the bricks. This changes the inconvenience of the traditional brick cutting device that requires manual control of the cutter, saves manpower consumption, and improves the efficiency of brick cutting.

[0035] 2. The construction brick cutter sets baffles and scale lines, and uses the protrusions on the baffles to determine the cutting length of bricks, so that the operator can judge whether the cut bricks are suitable according to actual needs and combined with the scale lines, which greatly improves the accuracy of brick cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0037] Figure 2 This is a schematic diagram of the overall structure of the brick cutting mechanism of the utility model;

[0038] Figure 3 It is a structural schematic diagram of the fixing component in the utility model;

[0039] Figure 4 It is a structural schematic diagram of the limit assembly in the utility model;

[0040] Figure 5 It is an exploded schematic diagram of the limit assembly in the utility model;

[0041] Figure 6 It is a schematic diagram of the structure of the matching between the limit knob and the fastener in the utility model;

[0042] Figure 7 It is a cross-sectional schematic diagram of the base in the utility model;

[0043] Figure 8 It is a structural schematic diagram of the mobile component in the utility model.

[0044] The symbols in the figure are:

[0045] 1. Support frame; 2. Ball screw; 3. Placement table; 4. Slant frame; 5. Hydraulic cylinder; 6. Fixed plate; 7. Brick cutting blade; 8. Baffle; 9. Scale line; 10. Slide bar; 11. Fixed seat; 12. Fixed knob; 13. Clamp block; 14. Slag discharge hole; 15. Rotary rod; 16. Limit seat; 17. Limit knob; 18. Fastening groove; 19. Fastener; 20. Ball bearing; 21. Base; 22. Vertical groove; 23. Horizontal groove; 24. Dual-axis motor; 25. Worm; 26. Worm wheel; 27. Connecting rod; 28. Bidirectional threaded rod; 29. ​​Fixed ring; 30. Threaded block; 31. Pulling arm; 32. Turn block; 33. Support rod; 34. Self-locking universal wheel; 35. Support leg. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1 - Figure 8 This application is described in further detail.

[0047] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0048] Embodiment 1:

[0049] See also Figure 1 - Figure 8 As shown, this embodiment provides a construction brick cutter, comprising:

[0050] The support frame 1 is a hollow structure with upper and lower openings. A ball screw 2 is rotatably connected to the center of the support frame 1. A placement table 3 is threadedly connected to the inner wall of the support frame 1. A shaped frame 4 is fixed to the upper surface of the support frame 1. A hydraulic cylinder 5 is symmetrically fixed to the lower surface of the shaped frame 4. A fixed plate 6 is fixed to the ends of the telescopic rods of the two hydraulic cylinders 5. A brick cutting blade 7 is fixed to the lower surface of the fixed plate 6.

[0051] The baffle plate 8 is fixedly mounted on the side wall of the placement table 3, and a scale mark 9 is fixed on the upper surface of the support frame 1 and located on the peripheral side of the shaped frame 4;

[0052] Four fixing components, which are symmetrically arranged and are all located on the upper surface of the placement table 3 and are used to clamp and fix the bricks;

[0053] A rotary rod 15, the rotary rod 15 is rotatably mounted on the peripheral side of the support frame 1, and one end of the rotary rod 15 penetrates the outer wall of the support frame 1 and extends into the support frame 1 to be coaxially connected with the ball screw 2;

[0054] A limit assembly, which is located on the rotating rod 15 and is used to constrain and limit the rotation of the rotating rod 15;

[0055] The base 21 is fixedly installed directly below the support frame 1. A vertical groove 22 and two horizontal grooves 23 are formed on the lower surface of the base 21. The vertical groove 22 and the horizontal groove 23 are vertically distributed.

[0056] A moving assembly, which is located in the vertical slot 22 and the horizontal slot 23 and is used to facilitate movement of the device;

[0057] The four support legs 35 are symmetrically arranged and are respectively fixedly mounted on the lower surface of the base 21 near four corners.

[0058] The tool 8 is used to fix the bricks on the upper surface of the placing table 3. When placing the bricks, one side of the bricks needs to be close to the inner side of the baffle 8. Then, the four fixing components are started. The bricks are stably clamped on the upper surface of the placing table 3 by using the fixing components. The operator rotates the rotary rod 15, and the rotary rod 15 drives the ball screw 2 to rotate. Under the action of the thread force, the placing table 3 slides in the inner cavity of the support frame 1. The operator adjusts the appropriate cutting length by observing the scale line 9 as required. Then, the two hydraulic cylinders 5 are started. The telescopic rods of the two hydraulic cylinders 5 move downward and push the fixed plate 6 and the brick cutting blade 7 to move downward. The brick cutting blade 7 cuts the bricks. After cutting, the fixing components are released and the cut bricks can be removed from the upper surface of the placing table 3. It is worth noting that the 0 scale position of the scale line 9 in this application is directly below the brick cutting blade 7. The operator can read the cutting length of the brick by observing that the edge of the inner wall of the baffle 8 points to the scale line 9 position.

[0059] The device has a simple and stable structure. The telescopic rods of the two hydraulic cylinders 5 are used to move the fixed plate 6 and the brick cutting blade 7 downward or upward, and the brick cutting blade 7 is used to cut the bricks. This changes the inconvenience of the traditional brick cutting device that requires manual control of the cutter, saves manpower consumption, and improves the efficiency of cutting bricks. By setting the baffle 8 and the scale line 9, the protrusion on the baffle 8 is used to judge the cutting length of the brick, so that the operator can judge whether the cut brick is suitable according to actual needs in combination with the scale line 9, which greatly improves the accuracy of brick cutting.

[0060] Embodiment 2:

[0061] This embodiment provides a brick cutter for construction, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a fixed component:

[0062] The fixing seat 11 is fixedly mounted on the upper surface of the placing table 3 , and a fixing knob 12 is rotatably mounted on the fixing seat 11 . One end of the fixing knob 12 passes through the fixing seat 11 and is rotatably connected to a clamping block 13 .

[0063] The operator can place the bricks on the upper surface of the placement table 3, and then turn the fixing knob 12, the fixing knob 12 moves inward and pushes the clamping block 13, and the clamping block 13 squeezes and clamps the bricks.

[0064] By providing the fixing assembly, the bricks can be stably fixed on the upper surface of the placement table 3, thereby preventing the bricks from being displaced when being cut.

[0065] Embodiment 3:

[0066] This embodiment provides a brick cutter for construction, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: slag discharge holes 14 are symmetrically opened on the side walls of the support frame 1.

[0067] When cleaning the brick dust falling into the support frame 1 , the operator can use a brush or other tool to sweep the brick dust to the outside from the slag discharge hole 14 .

[0068] The slag discharge hole 14 is provided to facilitate the operator to clean the brick dust falling into the inner cavity of the support frame 1 .

[0069] Embodiment 4:

[0070] This embodiment provides a brick cutter for construction, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the limit assembly includes:

[0071] A limit seat 16 is fixedly mounted on the outer wall of the support frame 1 close to the rotating rod 15. A bearing groove is provided on the inner side of the limit seat 16. A ball bearing 20 is installed in the bearing groove. A circular hole is provided at the axis of the bearing groove. A limit knob 17 is rotatably connected in the circular hole, and the limit knob 17 cooperates with the ball bearing 20. A fastening groove 18 with a truncated cone-shaped cross-section is provided in the limit knob 17. An internal thread is provided at the tail of the fastening groove 18. A truncated cone-shaped fastener 19 is connected to the internal thread of the fastening groove 18. One end of the fastener 19 is provided with an external thread matched with the internal thread of the fastening groove 18. The other end of the fastener 19 is a truncated cone-shaped structure formed by a plurality of blades closed together. One end of the rotating rod 15 sequentially penetrates the limit knob 17, the fastener 19 and the outer wall of the support frame 1 and is coaxially connected to the ball screw 2.

[0072] Among them, when the limit assembly is working, the operator rotates the rotary rod 15. Due to the certain friction between the fastener 19 and the surface of the rotary rod 15, when the limit knob 17 is rotated, the fastener 19 cannot follow the limit knob 17 to rotate synchronously and significantly. As the limit knob 17 continues to rotate, one end of the fastener 19 blade gradually enters the fastening groove 18, and multiple blades continue to close toward the center and generate greater friction with the circumferential wall of the rotary rod 15 until the fastener 19 is locked with the rotary rod 15. Since the external thread on the fastener 19 is locked with the internal thread of the fastening groove 18, the rotary rod 15 cannot rotate freely without the action of external force.

[0073] By setting a limit knob 17 and a fastener 19, and utilizing the cooperation between multiple blades on the fastener 19 and the fastening groove 18, the fastener 19 can effectively restrain the rotating rod 15, ensuring that the fixing seat 11 will not rotate when no external force is applied, thereby ensuring accuracy and stability when cutting bricks.

[0074] Embodiment 5:

[0075] This embodiment provides a brick cutter for construction, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the fastener 19 is an integrally formed structure.

[0076] By providing the fastener 19 as an integrally formed structure, the stability of the fastener 19 when clamping the rotary rod 15 is ensured.

[0077] Embodiment 6:

[0078] This embodiment provides a brick cutter for construction, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the moving component includes:

[0079] A dual-axis motor 24, wherein the two output shafts of the dual-axis motor 24 are coaxially connected with a worm 25, a worm wheel 26 is meshedly connected to the circumferential side of the worm 25, and a connecting rod 27 is coaxially connected to the worm wheel 26, one end of the connecting rod 27 passes through the vertical groove 22 and extends into the horizontal groove 23 on the corresponding side, and the connecting rod 27 is coaxially connected with a bidirectional threaded rod 28, and both ends of the bidirectional threaded rod 28 are symmetrically rotatably connected with a fixing ring 29 fixed to the inner top surface of the horizontal groove 23, a threaded block 30 symmetrically threadedly connected to the horizontal groove 23 is symmetrically threaded on the fixing ring 29, and a pulling arm 31 is rotatably connected to the bottom of the threaded block 30, a rotating block 32 is symmetrically fixed in the horizontal groove 23, and a support rod 33 is rotatably connected to the rotating block 32, and a rotating protrusion is provided on the lower part of the inner side wall of the support rod 33, and the other end of the pulling arm 31 is rotatably matched with the rotating protrusion on the support rod 33 on the corresponding side, and a self-locking universal wheel 34 is fixed to the bottom of the support rod 33.

[0080] Among them, when the moving component is working, the two output shafts of the dual-axis motor 24 rotate and drive the corresponding worm 25 to rotate, the worm 25 drives the worm wheel 26 on the corresponding side to rotate, and the worm wheel 26 drives the bidirectional threaded rod 28 to rotate through the connecting rod 27. Under the action of the thread force, the two thread blocks 30 on the same bidirectional threaded rod 28 can be displaced inward or outward at the same time in the transverse groove 23 along the bidirectional threaded rod 28; when it is necessary to move the device, the thread block 30 is displaced outward and pushes the bottom of the support rod 33 to slowly open through the pulling arm 31 until the support rod 33 is in a completely vertical state. At this time, the self-locking universal wheel 34 contacts the ground, and the support leg 35 is separated from the ground. At this time, the operator can push the device to a suitable working location. When it is necessary to retract the four support rods 33 of the device, the principle is the same as above, and only the dual-axis motor 24 needs to be reversed.

[0081] By setting up a moving component, using a dual-axis motor 24 for driving, and transmitting through a worm 25, a worm wheel 26, a connecting rod 27, a bidirectional threaded rod 28, etc., the displacement of the threaded block 30 is used to pull the pulling arm 31 or push the pulling arm 31, thereby controlling the retraction and extension of the support rod 33, so that the device can be stably fixed on the ground and can also be easily moved.

[0082] Embodiment 7:

[0083] This embodiment provides a brick cutter for construction, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a protrusion pointing to the scale line 9 is provided at one end of the baffle 8.

[0084] The operator can judge the length of the brick cutting by observing the position of the protrusion on the baffle 8 pointing to the scale line 9.

[0085] By providing a protrusion at one end of the baffle 8, the operator can more easily observe the cutting length of the brick.

[0086] Embodiment 8:

[0087] This embodiment provides a brick cutter for construction. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: sliding rods 10 fixed to the inner wall of the support frame 1 are symmetrically arranged on both sides of the ball screw 2, and the sliding rods 10 are slidably matched with the placement table 3.

[0088] The placement platform 3 can slide freely inside the support frame 1 along the two sliding rods 10 .

[0089] By providing two sliding rods 10 , the placement platform 3 can slide more stably in the inner cavity of the support frame 1 .

[0090] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A brick cutter for construction, characterized in that: include: A support frame (1), the support frame (1) is a hollow structure with upper and lower openings, a ball screw (2) is rotatably connected to the center of the support frame (1), a placement table (3) is threadedly connected to the inner wall of the support frame (1), a shaped frame (4) is fixed to the upper surface of the support frame (1), hydraulic cylinders (5) are symmetrically fixed to the lower surface of the shaped frame (4), fixed plates (6) are fixed to the ends of the telescopic rods of the two hydraulic cylinders (5), and a brick cutting blade (7) is fixed to the lower surface of the fixed plate (6); A baffle (8), the baffle (8) being fixedly mounted on the side wall of the placement table (3), and a scale mark (9) being fixed on the upper surface of the support frame (1) and located on the peripheral side of the shaped frame (4); Four fixing components, which are symmetrically arranged and are all located on the upper surface of the placement table (3) and are used to clamp and fix the bricks; A rotary rod (15), wherein the rotary rod (15) is rotatably mounted on the peripheral side of the support frame (1), and one end of the rotary rod (15) penetrates the outer wall of the support frame (1) and extends into the support frame (1) to be coaxially connected with the ball screw (2); A limit assembly, the limit assembly is located on the rotating rod (15) and is used to constrain and limit the rotation of the rotating rod (15); A base (21), the base (21) is fixedly installed directly below the support frame (1), a vertical groove (22) and two horizontal grooves (23) are formed on the lower surface of the base (21), and the vertical groove (22) and the horizontal groove (23) are vertically distributed; A moving assembly, which is located in the vertical groove (22) and the horizontal groove (23) and is used to facilitate the movement of the device; Four supporting legs (35), the four supporting legs (35) are symmetrically arranged, and the four supporting legs (35) are respectively fixedly mounted on the lower surface of the base (21) near four corners.

2. A brick cutter for construction according to claim 1, characterized in that: The fixing component: A fixing seat (11) is fixedly mounted on the upper surface of the placement table (3); a fixing knob (12) is rotatably mounted on the fixing seat (11); one end of the fixing knob (12) passes through the fixing seat (11) and is rotatably connected to a clamping block (13).

3. A brick cutter for construction according to claim 1, characterized in that: The side wall of the support frame (1) is symmetrically provided with slag discharge holes (14).

4. A brick cutter for construction according to claim 1, characterized in that: The limiting component comprises: A limit seat (16), the limit seat (16) is fixedly mounted on the outer wall of the support frame (1) near the rotating rod (15), the inner side surface of the limit seat (16) is provided with a bearing groove, a ball bearing (20) is installed in the bearing groove, a circular hole is provided at the axis of the bearing groove, a limit knob (17) is rotatably connected in the circular hole, and the limit knob (17) cooperates with the ball bearing (20), and a fastening groove (18) with a truncated cone cross section is provided in the limit knob (17) The tail of the fastening groove (18) is provided with an internal thread, and the internal thread of the fastening groove (18) is connected with a truncated cone-shaped fastener (19), one end of the fastener (19) is provided with an external thread that matches the internal thread of the fastening groove (18), and the other end of the fastener (19) is a truncated cone-shaped structure formed by closing a plurality of blades, and one end of the rotary rod (15) sequentially penetrates the limit knob (17), the fastener (19) and the outer wall of the support frame (1) and is coaxially connected to the ball screw (2).

5. A brick cutter for construction according to claim 4, characterized in that: The fastener (19) is an integrally formed structure.

6. A brick cutter for construction according to claim 1, characterized in that: The mobile assembly comprises: A double-axis motor (24), wherein the two output shafts of the double-axis motor (24) are coaxially connected to a worm (25), the peripheral side of the worm (25) is meshingly connected to a worm wheel (26), the worm wheel (26) is coaxially connected to a connecting rod (27), one end of the connecting rod (27) passes through the vertical groove (22) and extends into the horizontal groove (23) on the corresponding side, and the connecting rod (27) is coaxially connected to a bidirectional threaded rod (28), and the two ends of the bidirectional threaded rod (28) are symmetrically rotatably connected to a fixing ring (29) fixed to the top surface of the horizontal groove (23), and the A threaded block (30) slidably connected to the transverse groove (23) is symmetrically threadedly connected on the fixing ring (29); a pulling arm (31) is rotatably connected to the bottom of the threaded block (30); a rotating block (32) is symmetrically fixed in the transverse groove (23); a support rod (33) is rotatably connected to the rotating block (32); a rotating protrusion is provided at the lower part of the inner side wall of the support rod (33); the other end of the pulling arm (31) is rotatably matched with the rotating protrusion on the corresponding side support rod (33); and a self-locking universal wheel (34) is fixed at the bottom of the support rod (33).

7. A brick cutter for construction according to claim 1, characterized in that: One end of the baffle (8) is provided with a protrusion pointing to the scale line (9).

8. A brick cutter for construction according to claim 1, characterized in that: Sliding rods (10) fixed to the inner wall of the support frame (1) are symmetrically arranged on both sides of the ball screw (2), and the sliding rods (10) are slidably matched with the placement platform (3).

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