Multi-gradient adaptive concrete joint cutting device

By designing a multi-slope adaptive concrete joint cutting device, using the structure of hinges and connecting strips, combined with hydraulic system and drive mechanism, the problem of inefficiency of traditional joint cutting devices on slopes or uneven roads is solved, efficient and precise cutting on roads with different slopes is achieved, and stability and safety are improved.

CN119711306APending Publication Date: 2025-03-28YANGTZE RIVER CHONGQING WATERWAY ENG BUREAU
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Patent Information

Application Number
CN202411815595.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Traditional concrete joint cutting devices are inefficient when working on slopes or uneven roads, making it difficult to ensure the accuracy and consistency of cutting, and have problems with stability and safety on complex terrain.

Method used

A multi-slope adaptive concrete joint cutting device is designed, using a structure of hinges and connecting strips, which can adapt to the slope of the pavement, and combine it with a hydraulic system and a driving mechanism to ensure that the joint cutting device can work stably and efficiently on road surfaces with different slopes.

Benefits of technology

The device can efficiently cut on pavements with different slopes, improving cutting accuracy and consistency, enhancing stability and safety on complex terrain, and reducing construction risks.

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Abstract

The invention relates to the technical field of concrete joint cutting, and discloses a multi-gradient adaptive concrete joint cutting device which comprises channel steel arranged on a concrete panel, a distribution box, a first truss fixedly mounted on one side of the distribution box through bolts and a plurality of joint cutting assemblies located at the end of the first truss. Each joint cutting assembly comprises a second truss, a fixing plate and a cutting machine, the fixing plate is fixedly installed on the lower portion of the second truss, the cutting machine is arranged on the fixing plate, hinge pieces and connecting strips are arranged between the joint cutting assemblies and the first truss and between the joint cutting assemblies and the second truss of the multiple joint cutting assemblies, and the connecting pieces are located above the hinge pieces; and the first truss is provided with a driving mechanism capable of driving the whole joint cutting device to move on the channel steel. The concrete joint cutting device aims at solving the problems that when a traditional concrete joint cutting device works on a slope or an uneven road surface, the efficiency is low, and the cutting accuracy and consistency are difficult to guarantee.
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Description

Technical Field

[0001] The invention belongs to the technical field of concrete cutting, and in particular relates to a multi-slope adaptive concrete cutting device. Background Art

[0002] In modern construction projects, concrete is widely used in various structures due to its high strength, durability and other excellent properties. After the concrete construction is completed, in order to control the shrinkage and cracking of concrete and avoid irregular cracks due to excessive shrinkage stress of concrete, it is necessary to cut the joints about 24 hours after the concrete pouring is completed, when the concrete strength reaches 25% to 30% of the design strength. At present, the concrete cutting machine is the main tool for this work.

[0003] Traditional concrete cutting devices are mostly suitable for flat roads. Their structure and operation mode limit their applicability on roads with different slopes, resulting in low efficiency when working on slopes or uneven roads, and difficulty in ensuring cutting accuracy and consistency. In addition, the stability and safety of traditional equipment on complex terrains are also problematic, increasing construction risks. Therefore, we proposed a multi-slope adaptive concrete cutting device to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the traditional concrete cutting device is inefficient when operating on a slope or uneven road surface and it is difficult to ensure the accuracy and consistency of cutting.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A multi-slope adaptive concrete slitting device comprises a channel steel arranged on a concrete panel, a distribution box, a first truss fixedly installed on one side of the distribution box by bolts, and a plurality of slitting components located at the end of the first truss, wherein the slitting components comprise a second truss, a fixing plate and a cutting machine, wherein the fixing plate is fixedly installed on the lower part of the second truss, the cutting machine is arranged on the fixing plate, hinges and connecting strips are arranged between the slitting components and the first truss and the second trusses of the plurality of slitting components, the connecting parts are located above the hinges, and a driving mechanism is arranged on the first truss which can drive the entire slitting device to move on the channel steel.

[0007] It is further defined that the second truss is fixedly mounted with a first limiting cylinder and a second limiting cylinder, the first limiting cylinder and the second limiting cylinder are both provided with a strip limiting groove, the first limiting cylinder and the second limiting cylinder are respectively fixedly mounted with a first hydraulic rod and a second hydraulic rod, the ends of the first hydraulic rod and the second hydraulic rod are fixedly mounted with a first fixing rod and a second fixing rod, and the first fixing rod and the second fixing rod are respectively movably mounted in the first limiting cylinder and the second limiting cylinder. With such a structural design, the first limiting cylinder and the second limiting cylinder cooperate with the first fixing rod and the second fixing rod to make the entire second truss telescopically adjustable to adapt to different road section lengths.

[0008] It is further defined that the hinged member includes a first transfer column and a second transfer column, the first transfer column is fixed to the second truss and the first truss, the second transfer column is fixedly installed on the first fixing rod, and the first transfer column is rotatably connected to the second transfer column via a rotating shaft. With such a structural design, the first transfer column and the second transfer column cooperate to enable the first truss and the second truss and the end of the adjacent second truss close to the road surface to be in a hinged state, and can make adaptive rotation according to the slope of the road surface.

[0009] It is further defined that the connecting strip is made of elastic rubber, one end of the connecting strip is fixedly connected to the end of the second fixing rod, and the other end is fixedly connected to the first truss and the second truss. With such a structural design, the connecting strip can position the second fixing rod to prevent the second truss from being separated from the first truss and the adjacent second truss.

[0010] It is further defined that the driving mechanism includes a driving motor, a positioning column, two transmission shafts, a power wheel matched with the channel steel, a first belt and a second belt, a fixed frame is fixedly installed on the first truss, the driving motor and the positioning column are fixedly installed on the fixed frame, a first bevel gear is fixedly installed on the output shaft of the driving motor, a rotating shaft is rotatably installed on the positioning column, a second bevel gear meshing with the first bevel gear is fixedly installed on the rotating shaft, two groups of bosses are fixedly installed on the lower end of the first truss, the two transmission shafts are rotatably installed on the two groups of bosses, the power wheel is fixedly installed on the two transmission shafts, and the two transmission shafts are also provided with friction rollers, the first belt is sleeved on the friction rollers of the two transmission shafts, the rotating shaft is provided with an active roller, the second belt is sleeved on the friction rollers of the active roller and the adjacent transmission shaft, and the lower end of the second truss is provided with a transmission member matched with the transmission shaft. With such a structural design, the driving motor can drive the first belt and the second belt of the rod to move through the first bevel gear and the second bevel gear, thereby driving the transmission shaft and the power wheel to rotate, so that it can drive the entire device to move on the road surface with channel steel.

[0011] It is further defined that the transmission member includes a rotating shaft and a sleeve fixedly mounted at one end of the rotating shaft and a rotating rod movably plugged into the end of the sleeve, two fixed columns are fixedly mounted at the lower end of the second truss, the ends of the rotating shaft and the rotating rod respectively pass through the two fixed columns, a limiting groove is provided in the sleeve, and a convex strip matched with the limiting groove is provided on the rotating rod. With such a structural design, the rotating rod is movably plugged into the sleeve, so that the entire transmission member can be in a retractable state to adapt to changes in the road slope, and the limiting groove cooperates with the convex strip on the rotating rod, so that the rotating shaft can be driven by the rotating rod.

[0012] It is further defined that a universal joint is provided between the rotating shaft and the rotating rod on the adjacent second trusses and between the rotating rod and the rotating shaft. Such a structural design is simple in structure and convenient to use.

[0013] It is further defined that a locking mechanism capable of locking the rotation angle is provided between the first truss and the second truss and the adjacent second truss. With such a structural design, the locking mechanism can lock the angle between the first truss and the second truss and the adjacent second truss after the entire slitting device is adapted to a multi-slope road surface, thereby improving the stability of the slitting device.

[0014] It is further defined that the locking mechanism includes an arc tube, an arc insertion strip, a through column, a stopper and a rotating end, the arc tube is fixedly mounted on the first fixed rod, the arc insertion strip is fixedly mounted on the second truss and the first truss adjacent to the arc tube, the arc insertion strip is movably inserted in the arc tube, the through column penetrates the arc tube, a groove is provided on the arc insertion strip, when the arc insertion strip is inserted in the arc tube, the through column moves in the groove, the stopper is fixedly mounted on the lower end of the through column, an opening adapted to the stopper is provided on the arc tube, and the rotating end is rotatably mounted on the upper end of the through column. With such a structural design, when the rotating end is pressed down, its end contacts the upper end of the arc tube and lifts the through column upward, prompting the stopper to contact the arc insertion strip, thereby locking the arc insertion strip in the arc tube.

[0015] It is further defined that a support platform is provided between the cutting machine and the fixed plate, the support platform is fixedly connected to the lower end of the cutting machine by bolts, a hydraulic column is provided at the lower end of the support platform, and the lower end of the hydraulic column is fixedly connected to the fixed plate. With such a structural design, the hydraulic column cooperates with the support platform to drive the cutting machine to move up and down, so as to complete the cutting work of the concrete pavement.

[0016] The invention adopting the above technical solution has the following advantages:

[0017] 1. In the present invention, the second trusses of the plurality of slitting assemblies and the second trusses and the first trusses are connected by hinges and connectors, so that the first trusses and the second trusses can be rotatably mounted on one side close to the ground. When the road surface is uneven, the entire slitting device can be adaptively adjusted according to the slope of the road surface. The driving mechanism can drive the entire slitting device to move on the road surface where the channel steel is laid. The road surface is slid by the cutting machine, which is suitable for roads with different slopes and solves the problem of low efficiency of the slitting device when operating on a slope or uneven road surface.

[0018] 2. In the present invention, after the slitting device is adjusted to adapt to the road surface, the end head can be rotated so that the through column can drive the stop block to move upward to fix the arc-shaped insert in the arc-shaped tube. The arc-shaped insert cooperates with the arc-shaped tube to ensure that the angle of the hinge is in a locked state, thereby improving the stability of the entire slitting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0020] Figure 1 It is a structural schematic diagram of a multi-slope adaptive concrete cutting device of the present invention;

[0021] Figure 2 It is a structural schematic diagram of a slitting assembly and a first truss part in a multi-slope adaptive concrete slitting device of the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 It is a structural schematic diagram of a cutting assembly part in a multi-slope adaptive concrete cutting device of the present invention;

[0024] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 6 It is a structural schematic diagram of a locking mechanism part in a multi-slope adaptive concrete cutting device of the present invention;

[0026] Figure 7 The present invention is a schematic structural diagram of a transmission component in a multi-slope adaptive concrete cutting device.

[0027] The main component symbols are described as follows:

[0028] 1. Distribution box; 2. First truss;

[0029] 3. Slitting assembly;

[0030] 31, second truss; 311, first limiting cylinder; 312, second limiting cylinder; 313, first hydraulic rod; 314, second hydraulic rod; 315, first fixing rod; 316, second fixing rod;

[0031] 32. Fixing plate; 33. Cutting machine; 34. Connecting strip;

[0032] 4. First transfer post; 41. Second transfer post;

[0033] 5. driving motor; 51. positioning column; 52. transmission shaft; 53. power wheel; 54. first belt; 55. second belt;

[0034] 6. Transmission member; 61. Rotating shaft; 62. Sleeve; 63. Rotating rod;

[0035] 7. arc tube; 71. arc insert; 72. through column; 73. stop block; 74. rotating end. DETAILED DESCRIPTION

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions of the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention.

[0037] like Figure 1 to Figure 7 As shown, a multi-slope adaptive concrete seam cutting device of the present invention comprises a channel steel arranged on a concrete panel, a distribution box 1, a first truss 2 fixedly installed on one side of the distribution box 1 by bolts, and a plurality of seam cutting components 3 located at the end of the first truss 2, wherein the seam cutting component 3 comprises a second truss 31, a fixing plate 32 and a cutting machine 33, wherein the fixing plate 32 is fixedly installed at the lower part of the second truss 31, the cutting machine 33 is arranged on the fixing plate 32, a support platform is arranged between the cutting machine 33 and the fixing plate 32, the support platform is fixedly connected to the lower end of the cutting machine 33 by bolts, a hydraulic column is arranged at the lower end of the support platform, and the hydraulic column The lower end is fixedly connected to the fixed plate 32, and the hydraulic column can drive the support platform and the cutter 33 to move up and down to facilitate the slitting work. At the beginning of the slitting work, the cutter 33 can be driven to move downward so that the cutter head of the cutter 33 is close to the road surface. After the slitting work is completed, the cutter 33 can be lifted upward to separate the cutter head from the road surface for easy use. A hinge and a connecting strip 34 are provided between the slitting assembly 3 and the first truss 2 and the second truss 31 of the multiple groups of slitting assemblies 3. The connecting piece is located above the hinge. A driving mechanism that can drive the entire slitting device to move on the channel steel is provided on the first truss 2.

[0038] The first limiting cylinder 311 and the second limiting cylinder 312 are fixedly installed on the second truss 31, and strip limiting grooves are provided in the first limiting cylinder 311 and the second limiting cylinder 312. The first hydraulic rod 313 and the second hydraulic rod 314 are fixedly installed in the first limiting cylinder 311 and the second limiting cylinder 312 respectively, and the first fixing rod 315 and the second fixing rod 316 are fixedly installed at the ends of the first hydraulic rod 313 and the second hydraulic rod 314. The first fixing rod 315 and the second fixing rod 316 are movably installed in the first limiting cylinder 311 and the second limiting cylinder 312 respectively. When the first hydraulic rod 313 and the second hydraulic rod 314 are working, they drive the first fixing rod 315 and the second fixing rod 316 to move under the limiting action of the first limiting cylinder 311 and the second limiting cylinder 312 to adjust the width of the slitting assembly 3.

[0039] The hinge comprises a first adapter column 4 and a second adapter column 41 . The first adapter column 4 is fixed on the second truss 31 and the first truss 2 . The second adapter column 41 is fixedly mounted on the first fixing rod 315 . The first adapter column 4 is rotatably connected to the second adapter column 41 via a rotating shaft.

[0040] The connecting strip 34 is made of elastic rubber. One end of the connecting strip 34 is fixedly connected to the end of the second fixing rod 316 , and the other end of the connecting strip 34 is fixedly connected to the first truss 2 and the second truss 31 .

[0041] The driving mechanism includes a driving motor 5, a positioning column 51, two transmission shafts 52, a power wheel 53 matched with the channel steel, a first belt 54 and a second belt 55. A fixing frame is fixedly installed on the first truss 2, and the driving motor 5 and the positioning column 51 are fixedly installed on the fixing frame. A first bevel gear is fixedly installed on the output shaft of the driving motor 5, a rotating shaft is rotatably installed on the positioning column 51, and a second bevel gear meshing with the first bevel gear is fixedly installed on the rotating shaft. Two groups of bosses are fixedly installed on the lower end of the first truss 2, and the two transmission shafts 52 are rotatably installed on the two groups of bosses. The power wheel 53 is fixedly installed on the two transmission shafts 52. The two transmission shafts 52 are also provided with friction rollers. The first belt 54 is sleeved on the friction rollers of the two transmission shafts 52, and an active roller is provided on the rotating shaft. The second belt 55 is sleeved on the friction rollers between the active roller and the adjacent transmission shaft 52. The lower end of the second truss 31 is provided with a transmission member 6 matched with the transmission shaft 52.

[0042] The transmission member 6 includes a rotating shaft 61, a sleeve 62 fixedly installed at one end of the rotating shaft 61, and a rotating rod 63 movably inserted at the end of the sleeve 62. Two fixed columns are fixedly installed at the lower end of the second truss 31. The ends of the rotating shaft 61 and the rotating rod 63 pass through the two fixed columns respectively. A limiting groove is provided in the sleeve 62, and a convex strip matched with the limiting groove is provided on the rotating rod 63. The convex strip cooperates with the limiting groove, so that the rotating rod 63 can drive the sleeve 62 to rotate, and the transmission member 6 as a whole is in a retractable state.

[0043] Universal joints are provided between the rotating shaft 61 and the rotating rod 63 on the adjacent second trusses 31 and between the rotating rod 63 and the rotating shaft. The universal joints can be adaptively adjusted according to the road slope while ensuring the transmission relationship. The structure is simple and easy to use.

[0044] A locking mechanism for locking the rotation angle is provided between the first truss 2 and the second truss 31 and the adjacent second truss 31. The locking mechanism can lock the rotation angle so that the integrity of the entire slitting device is enhanced and the stability of the slitting device is improved. The locking mechanism includes an arc tube 7, an arc insertion strip 71, a through column 72, a stop block 73 and a rotating end head 74. The arc tube 7 is fixedly mounted on the first fixing rod 315, the arc insertion strip 71 is fixedly mounted on the second truss 31 and the first truss 2 adjacent to the arc tube 7, the arc insertion strip 71 is movably inserted in the arc tube 7, the through column 72 penetrates the arc tube 7, a groove is provided on the arc insertion strip 71, when the arc insertion strip 71 is inserted in the arc tube 7, the through column 72 moves in the groove, the stop block 73 is fixedly mounted on the lower end of the through column 72, an opening adapted to the stop block 73 is provided on the arc tube 7, and the rotating end head 74 is rotatably mounted on the upper end of the through column 72.

[0045] The method of use of the present invention is as follows:

[0046] When in use, channel steel is laid on the road surface, and a corresponding number of second trusses 31 are selected according to the length of the road surface, and the second trusses 31 are connected to the first trusses 2, and then erected on the channel steel. When the road surface is uneven and has a slope, the width of the slitting assembly 3 is adjusted by the first hydraulic rod 313 and the second hydraulic rod 314, so that the hinge points of adjacent second trusses 31 are located at the top or bottom of the slope. With the cooperation of the first adapter column 4 and the second adapter column 41, the adjacent second trusses 31 will rotate to adapt to the slope of the road surface;

[0047] After the adjustment is completed, force is applied to rotate the rotating end 74 so that its end contacts the upper end of the arc tube 7, prompting the through column 72 to move upward. The block 73, driven by the through column 72, presses the arc-shaped insert 71 into the arc tube 7. The arc-shaped insert 71 and the arc tube 7 are in a locked state, making the connection of the entire slitting device more stable.

[0048] When the slitting work is performed, the driving motor 5 works, and the output shaft drives the first bevel gear and the second bevel gear to rotate, and then drives the transmission shaft 52 and the power wheel 53 to rotate through the second belt and the first belt. Under the action of the universal joint, the rotating rod 63, the sleeve 62, the rotating shaft 61 and the roller all rotate, and the roller and the power wheel 52 move on the channel steel, driving the entire slitting device to move on the road surface, performing multi-section slitting work on the road surface, thereby improving the stability and safety of the slitting device on complex terrain and reducing construction risks.

[0049] The above is a detailed introduction to a multi-slope adaptive concrete cutting device provided by the present invention. The description of the specific embodiment is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A multi-slope adaptive concrete cutting device, comprising a channel steel arranged on a concrete panel, a distribution box (1), a first truss (2) fixedly mounted on one side of the distribution box (1) by bolts, and a plurality of cutting assemblies (3) located at the end of the first truss (2), characterized in that: The slitting assembly (3) comprises a second truss (31), a fixing plate (32) and a cutting machine (33), wherein the fixing plate (32) is fixedly mounted on the lower part of the second truss (31), and the cutting machine (33) is arranged on the fixing plate (32). A hinge and a connecting strip (34) are arranged between the slitting assembly (3) and the first truss (2) and the second trusses (31) of the plurality of slitting assemblies (3), wherein the connecting piece is located above the hinge, and a driving mechanism capable of driving the entire slitting device to move on the channel steel is arranged on the first truss (2).

2. The multi-slope adaptive concrete cutting device according to claim 1 is characterized in that: A first limiting cylinder (311) and a second limiting cylinder (312) are fixedly mounted on the second truss (31); a strip limiting groove is provided in the first limiting cylinder (311) and the second limiting cylinder (312); a first hydraulic rod (313) and a second hydraulic rod (314) are fixedly mounted in the first limiting cylinder (311) and the second limiting cylinder (312), respectively; a first fixing rod (315) and a second fixing rod (316) are fixedly mounted at the ends of the first hydraulic rod (313) and the second hydraulic rod (314); the first fixing rod (315) and the second fixing rod (316) are movably mounted in the first limiting cylinder (311) and the second limiting cylinder (312), respectively.

3. The multi-slope adaptive concrete cutting device according to claim 2 is characterized in that: The hinged component comprises a first adapter column (4) and a second adapter column (41); the first adapter column (4) is fixed on the second truss (31) and the first truss (2); the second adapter column (41) is fixedly mounted on the first fixing rod (315); and the first adapter column (4) is rotatably connected to the second adapter column (41) via a rotating shaft.

4. The multi-slope adaptive concrete cutting device according to claim 2 is characterized in that: The connecting strip (34) is made of elastic rubber material, one end of the connecting strip (34) is fixedly connected to the end of the second fixing rod (316), and the other end is fixedly connected to the first truss (2) and the second truss (31).

5. The multi-slope adaptive concrete cutting device according to claim 1 is characterized in that: The driving mechanism comprises a driving motor (5), a positioning column (51), two transmission shafts (52), a power wheel (53) matched with the channel steel, a first belt (54) and a second belt (55); a fixing frame is fixedly mounted on the first truss (2); the driving motor (5) and the positioning column (51) are fixedly mounted on the fixing frame; a first bevel gear is fixedly mounted on the output shaft of the driving motor (5); a rotating shaft is rotatably mounted on the positioning column (51); a second bevel gear meshing with the first bevel gear is fixedly mounted on the rotating shaft; and the first bevel gear meshing with the first bevel gear is fixedly mounted on the first bevel gear. Two groups of bosses are fixedly mounted on the lower end of a truss (2), the two transmission shafts (52) are rotatably mounted on the two groups of bosses, a power wheel (53) is fixedly mounted on the two transmission shafts (52), the two transmission shafts (52) are also provided with friction rollers, the first belt (54) is sleeved on the friction rollers of the two transmission shafts (52), the rotating shaft is provided with a driving roller, the second belt (55) is sleeved on the driving roller and the friction roller of the adjacent transmission shaft (52), and the lower end of the second truss (31) is provided with a transmission member (6) adapted to the transmission shaft (52).

6. The multi-slope adaptive concrete cutting device according to claim 5, characterized in that: The transmission member (6) comprises a rotating shaft (61), a sleeve (62) fixedly mounted on one end of the rotating shaft (61), and a rotating rod (63) movably plugged into the end of the sleeve (62); a roller having a size consistent with that of the power wheel (53) is provided on the rotating shaft (61); two fixed columns are fixedly mounted on the lower end of the second truss (31); the ends of the rotating shaft (61) and the rotating rod (63) respectively pass through the two fixed columns; a limiting groove is provided in the sleeve (62); and a convex strip matched with the limiting groove is provided on the rotating rod (63).

7. The multi-slope adaptive concrete cutting device according to claim 1 is characterized in that: Universal joints are provided between the rotating shaft (61) and the rotating rod (63) on the adjacent second trusses (31), and between the rotating rod (63) and the rotating shaft.

8. The multi-slope adaptive concrete cutting device according to claim 2 is characterized in that: A locking mechanism capable of locking the rotation angle is provided between the first truss (2) and the second truss (31) and between adjacent second trusses (31).

9. The multi-slope adaptive concrete cutting device according to claim 8, characterized in that: The locking mechanism comprises an arc tube (7), an arc insertion strip (71), a through column (72), a stopper (73) and a rotating end head (74); the arc tube (7) is fixedly mounted on a first fixed rod (315); the arc insertion strip (71) is fixedly mounted on a second truss (31) and a first truss (2) adjacent to the arc tube (7); the arc insertion strip (71) is movably inserted into the arc tube (7); the through column (72) penetrates the arc tube (7); a groove is provided on the arc insertion strip (71); when the arc insertion strip (71) is inserted into the arc tube (7), the through column (72) moves in the groove; the stopper (73) is fixedly mounted on the lower end of the through column (72); an opening matching the stopper (73) is provided on the arc tube (7); and the rotating end head (74) is rotatably mounted on the upper end of the through column (72).

10. The multi-slope adaptive concrete cutting device according to claim 1, characterized in that: A support platform is provided between the cutting machine (33) and the fixing plate (32), the support platform and the lower end of the cutting machine (33) are fixedly connected by bolts, a hydraulic column is provided at the lower end of the support platform, and the lower end of the hydraulic column is fixedly connected to the fixing plate (32).