Grooving device for building construction pipeline arrangement

Abstract

The invention discloses a grooving device for building construction pipeline arrangement, and relates to the technical field of engineering equipment.The grooving device comprises a cutting roller, the cutting roller is connected with a driving motor, a plurality of cutting saw blades are installed on the cutting roller, the cutting roller is rotationally installed in a first frame, a second frame is arranged on the outer side of the first frame, and a resistance roller is rotationally installed in the second frame; a plurality of resistance wheels are installed on the resistance roller, the resistance roller and the cutting roller are installed in parallel, a transmission assembly is arranged between the cutting roller and the resistance roller, the transmission assembly is arranged on the edge of the second frame and connected with a tensioning mechanism, a reversing mechanism is further arranged on the second frame, and a telescopic handle is connected to the second frame. And a reversing mechanism is further arranged, and when the reversing mechanism cuts to the other side of the ground, the second frame is rotated to the adjacent cutting area, so that the next-stage cutting groove cutting operation is carried out, and the overall automation degree of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and specifically relates to a grooving device for pipeline layout in building construction. Background Art

[0002] During the building construction process, it is necessary to reserve installation spaces for various pipelines such as water pipes, wire pipes, and floor heating pipes, and they are hidden and installed through grooving. During the grooving process, after manual measurement and wiring, a cutting saw is used to cut out a line, and then grooving is carried out along the cut line.

[0003] For grooving pipelines on the ground, the existing grooving equipment mainly combines a cutting machine to cut along the pre-marked scribed line, and the cement blocks in the cutting area are removed to obtain the installation groove for the pipeline. However, this cutting and grooving method requires multiple cutting processes back and forth according to the number of pipelines set, and the grooving efficiency is low. Moreover, for the grooving installation operations of multiple pipelines with different diameters, it is necessary to adjust the cutting depth and cutting width back and forth during grooving, and the grooving efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is to provide a grooving device for pipeline layout in building construction to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A grooving device for pipeline layout in building construction includes a cutting roller, the cutting roller is connected with a driving motor, the cutting roller is rotatably installed in a first frame, a second frame is arranged on the outer side of the first frame, a resistance roller is rotatably installed in the second frame, the resistance roller is installed in parallel with the cutting roller, a transmission component is arranged between the cutting roller and the resistance roller, the transmission component is arranged at the edge of the second frame, the transmission component is connected with a tensioning mechanism, a reversing mechanism is also arranged on the second frame, and a telescopic handle is connected to the second frame.

[0006] The transmission component includes a driving pulley connected to the journal of the cutting roller, a driven pulley is connected to the journal part of the resistance roller, the driving pulley and the driven pulley are installed at the same height, the radius of the driving pulley is smaller than the radius of the driven pulley, the second frame is provided with a first auxiliary pulley and a second auxiliary pulley on the left side of the driving pulley, the first auxiliary pulley and the second auxiliary pulley are respectively arranged on both sides of the center connection line of the driving pulley and the driven pulley, a transmission belt is wound around the driving pulley, the driven pulley, the first auxiliary pulley and the second auxiliary pulley, and a tensioning pulley is also installed on the second frame, and the tensioning pulley is abutted against the outer side of the transmission belt.

[0007] As a further solution of the present invention: The tensioning mechanism includes an adjustment groove one provided on the second frame. The journal of the cutting roller passes through the adjustment groove one and is connected to the driving pulley. An adjustment groove two is provided inside the first frame. The resistance roller passes through the adjustment groove two and is rotatably connected to the second frame. Clamping frames are provided on both sides of the first frame. Slide rails are provided on the inner sides of both ends of the second frame. The first frame is slidably connected to the slide rails through the clamping frames. A telescopic motor is provided between the first frame and the second frame. Both ends of the telescopic motor are respectively fixedly connected to the first frame and the second frame. Distance adjustment screws are provided on both sides of the telescopic motor on the second frame.

[0008] As a further solution of the present invention: The reversing mechanism includes a support spherical hinge one and a support spherical hinge two. The driving motor is connected to a transmission box. The transmission box passes through the second frame and is fixedly connected between the first frame. The driving motor is connected to an output shaft. A telescopic rod is provided on the output shaft. A clutch is provided between the output shaft and the journal of the cutting roller. A bevel gear one is rotatably connected to the bottom of the transmission box. A telescopic cylinder is coaxially connected to the bottom of the bevel gear one. The telescopic cylinder is coaxially installed with the support spherical hinge one. A bevel gear two is provided on the output shaft. A lifting column is provided on the side of the second frame away from the driving motor. The lifting column is connected to the support spherical hinge two.

[0009] As a further solution of the present invention: A gantry is fixedly installed on the upper side of the second frame. A horizontal sliding groove is provided at the top of the gantry. The horizontal sliding groove penetrates through the upper and lower sides of the gantry. A U-shaped frame is slidably installed in the horizontal sliding groove. The telescopic handle is rotatably connected to the U-shaped frame.

[0010] As a further solution of the present invention: A clamping slider is provided at the bottom of the U-shaped frame. The clamping slider is cylindrical. A limiting hole is provided at the bottom of the clamping slider. A clamping head one is fixedly installed at the bottom of both ends of the gantry. The clamping head one cooperates with the limiting hole. Two groups of clamping heads two are symmetrically provided at both ends of the gantry. The clamping heads two are distributed on both sides of the horizontal sliding groove. A positioning groove is correspondingly provided on the U-shaped frame. When the positioning groove cooperates with the clamping head two, the telescopic handle and the axis where the cutting roller is located are perpendicular in space.

[0011] As a further solution of the present invention: The cutting roller includes a plurality of continuously installed cutting saw blades. The resistance roller includes a plurality of continuously installed resistance wheels. A storage groove two is provided between the cutting saw blades. A storage groove one is provided between the resistance wheels. The cutting saw blades and the resistance wheels are installed in a staggered manner. And the cutting saw blades cooperate with the storage groove one, and the resistance wheels cooperate with the storage groove two. A sponge cylinder is rotatably installed on the upper side of the cutting roller. The sponge cylinder is evenly provided with matching gaps corresponding to the cutting saw blades.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The driving motor drives the cutting roller to rotate, and the power of the driving motor is transmitted to the resistance roller through the transmission component, so that the cutting roller and the resistance roller rotate in opposite directions, delaying the forward speed of the cutting roller. The speed difference between the cutting roller and the resistance roller is used to realize the effective cutting of the whole device while it can move. In order to realize the reverse rotation of the cutting roller and the resistance roller, an auxiliary pulley one and an auxiliary pulley two are respectively arranged on the upper and lower sides of the frame two, and the power of the driving pulley is transmitted to the driven pulley by using the auxiliary pulley one and the auxiliary pulley two. At the same time, in order to ensure the transmission effect between the transmission belt and the driven pulley, the tension pulley is movably installed on the frame two through a spring, and the tension pulley is pressed on the transmission belt by the elasticity of the spring.

[0013] (2) In order to facilitate the installation of the transmission belt and further ensure the transmission effect of the transmission belt, the frame one and the frame two are movably installed through the clamping frame and the slide rail. After the transmission belt is installed, the telescopic motor is controlled to move, so that the frame one and the frame two approach each other, and then the distance between the driving pulley and the driven pulley is reduced. Under the action of the auxiliary pulley one and the auxiliary pulley two, the transmission belt is tensioned, thus ensuring the transmission effect of the transmission belt.

[0014] (3) The frame one and the frame two are lifted by the telescopic cylinder and the lifting column, so that the cutting roller and the resistance roller are separated from the ground. At the same time, the power connection between the output shaft and the cutting roller is disconnected by controlling the telescopic rod in combination, so that the bevel gear two and the bevel gear one are engaged with each other. At this time, when the driving motor outputs power, the whole frame one and the frame two will rotate around the support ball hinge one. After the frame one and the frame two rotate 180 degrees, the cutting roller and the resistance roller are rotated to the edge of the just-opened cutting groove as a whole, so as to facilitate the cutting of the cutting groove in the next stage, which is suitable for the cutting operation of dense pipelines. At the same time, this kind of cutting groove is suitable for the construction of pipeline grooves with uniform pipeline diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the installation structure of the cutting roller and the resistance roller in the present invention.

[0017] Figure 3 It is a schematic diagram of the cooperation structure of the cutting roller and the resistance roller in the present invention.

[0018] Figure 4 It is a schematic diagram of the structure of the transmission component in the present invention.

[0019] Figure 5 It is a layout schematic diagram of the adjusting groove two in the present invention.

[0020] Figure 6 This is a schematic structural diagram of the tensioning mechanism in the present invention.

[0021] Figure 7 This is a schematic installation structure diagram of the drive motor in the present invention.

[0022] Figure 8 This is a schematic structural diagram of the commutation mechanism in the present invention.

[0023] Figure 9 This is a schematic structural diagram of the U-shaped frame in the present invention.

[0024] In the figure: 1. Frame one; 20. Cutting roller; 21. Resistance roller; 22. First storage groove; 23. Second storage groove; 3. Sponge cylinder; 4. Transmission assembly; 40. Driving pulley; 41. Driven pulley; 42. First auxiliary pulley; 43. Second auxiliary pulley; 44. Transmission belt; 45. Tensioning pulley; 5. Tensioning mechanism; 50. Frame two; 51. First adjustment groove; 52. Second adjustment groove; 53. Slide rail; 54. Clamping frame; 55. Telescopic motor; 56. Distance adjustment screw; 6. Telescopic handle; 7. Drive motor; 70. Transmission box; 71. Clutch; 72. Output shaft; 8. Commutation mechanism; 80. Telescopic rod; 81. First support spherical hinge; 82. First bevel gear; 83. Second bevel gear; 84. Gantry; 85. Horizontal sliding groove; 86. U-shaped frame; 860. Positioning groove; 861. Clamping slider; 862. Limit hole; 87. First clamping head; 88. Second clamping head; 89. Lifting column; 810. Second support spherical hinge. Detailed implementation manners

[0025] The technical solutions of the present invention will be further described in detail below in combination with the specific implementation manners.

[0026] As Figure 1 , Figure 2 , Figure 3 shown, a grooving device for pipeline layout in building construction includes a cutting roller 20, the cutting roller 20 is connected with a drive motor 7, the cutting roller 20 is rotatably installed in the frame one 1, a frame two 50 is arranged on the outer side of the frame one 1, a resistance roller 21 is rotatably installed in the frame two 50, the resistance roller 21 and the cutting roller 20 are installed in parallel, a transmission assembly 4 is arranged between the cutting roller 20 and the resistance roller 21, the transmission assembly 4 is arranged at the edge of the frame two 50, the transmission assembly 4 is connected with a tensioning mechanism 5, a commutation mechanism 8 is further arranged on the frame two 50, and a telescopic handle 6 is connected to the frame two 50.

[0027] Specifically, the driving motor 7 drives the cutting roller 20 to rotate. The power of the driving motor 7 is transmitted to the resistance roller 21 through the transmission assembly 4, so that the cutting roller 20 and the resistance roller 21 rotate in opposite directions, delaying the forward speed of the cutting roller 20. The speed difference between the cutting roller 20 and the resistance roller 21 enables the overall device to move while effectively cutting.

[0028] As Figure 4 shown, the transmission assembly 4 includes a driving pulley 40 connected to the journal of the cutting roller 20. A driven pulley 41 is connected to the journal of the resistance roller 21. The driving pulley 40 and the driven pulley 41 are installed at the same height. The radius of the driving pulley 40 is smaller than that of the driven pulley 41. An auxiliary pulley one 42 and an auxiliary pulley two 43 are arranged on the left side of the driving pulley 40 in the frame two 50. The auxiliary pulley one 42 and the auxiliary pulley two 43 are respectively arranged on both sides of the center connection line of the driving pulley 40 and the driven pulley 41. A transmission belt 44 is wound around the driving pulley 40, the driven pulley 41, the auxiliary pulley one 42 and the auxiliary pulley two 43. A tension pulley 45 is also installed on the frame two 50, and the tension pulley 45 abuts against the outer side of the transmission belt 44.

[0029] Specifically, in order to achieve the reverse rotation of the cutting roller 20 and the resistance roller 21, the auxiliary pulley one 42 and the auxiliary pulley two 43 are respectively arranged on the upper and lower sides of the frame two 50. The power of the driving pulley 40 is transmitted to the driven pulley 41 through the auxiliary pulley one 42 and the auxiliary pulley two 43. At the same time, in order to ensure the transmission effect between the transmission belt 44 and the driven pulley 41, the tension pulley 45 is movably installed on the frame two 50 through a spring, and the tension pulley 45 is pressed on the transmission belt 44 by the elasticity of the spring.

[0030] Further, as Figure 4 、 Figure 5 、 Figure 6 shown, the tension mechanism 5 includes an adjustment slot one 51 arranged on the frame two 50. The journal of the cutting roller 20 passes through the adjustment slot one 51 and is connected to the driving pulley 40. An adjustment slot two 52 is arranged in the frame one 1. The resistance roller 21 passes through the adjustment slot two 52 and is rotatably connected to the frame two 50. Clamping frames 54 are arranged on both sides of the frame one 1. Slide rails 53 are arranged on the inner sides of both ends of the frame two 50. The frame one 1 is slidably connected to the slide rails 53 through the clamping frames 54. A telescopic motor 55 is arranged between the frame one 1 and the frame two 50. Both ends of the telescopic motor 55 are respectively fixed to the frame one 1 and the frame two 50. Adjusting screws 56 are arranged on both sides of the telescopic motor 55 on the frame two 50.

[0031] Specifically, for the convenience of installing the drive belt 44 and further ensuring the driving effect of the drive belt 44, the first frame 1 and the second frame 50 are movably installed through the clamping frame 54 and the slide rail 53. After the drive belt 44 is installed, the telescopic motor 55 is controlled to move, so that the first frame 1 and the second frame 50 approach each other, and then the distance between the driving pulley 40 and the driven pulley 41 is reduced. Under the action of the first auxiliary pulley 42 and the second auxiliary pulley 43, the drive belt 44 is tensioned, thereby ensuring the driving effect of the drive belt 44.

[0032] Further, as Figure 7 , Figure 8 shown, the commutation mechanism 8 includes a first support ball hinge 81 and a second support ball hinge 810. The drive motor 7 is connected with a transmission box 70. The transmission box 70 is fixedly connected between the second frame 50 and the first frame 1 through the second frame 50. The drive motor 7 is connected with an output shaft 72. An expansion rod 80 is arranged on the output shaft 72. A clutch 71 is arranged between the output shaft 72 and the journal of the cutting roller 20. The bottom of the transmission box 70 is rotatably connected with a first bevel gear 82. The bottom of the first bevel gear 82 is coaxially connected with a telescopic cylinder. The telescopic cylinder is coaxially installed with the first support ball hinge 81. A second bevel gear 83 is arranged on the output shaft 72. A lifting column 89 is arranged on one side of the second frame 50 away from the drive motor 7. The lifting column 89 is connected with the second support ball hinge 810.

[0033] Specifically, the first frame 1 and the second frame 50 are lifted by the telescopic cylinder and the lifting column 89, so that the cutting roller 20 and the resistance roller 21 are separated from the ground. At the same time, the power connection between the output shaft 72 and the cutting roller 20 is controlled to be disconnected by combining the expansion rod 80, so that the second bevel gear 83 and the first bevel gear 82 are engaged with each other. At this time, when the drive motor 7 outputs power, the first frame 1 and the second frame 50 will rotate as a whole around the first support ball hinge 81. After the first frame 1 and the second frame 50 rotate 180 degrees, the cutting roller 20 and the resistance roller 21 are rotated as a whole to the edge of the just-opened cutting groove, so as to facilitate the cutting of the cutting groove in the next stage, which is applicable to the cutting operation of dense pipelines. At the same time, this cutting method is suitable for the construction of pipeline grooves with a unified pipeline diameter.

[0034] Further, as Figure 8 shown, a gantry 84 is fixedly installed on the upper side of the second frame 50. A transverse chute 85 is arranged at the top of the gantry 84. The transverse chute 85 penetrates through the upper and lower sides of the gantry 84. A U-shaped frame 86 is slidably installed in the transverse chute 85. The telescopic handle 6 is rotatably connected with the U-shaped frame 86.

[0035] Further, as Figure 9As shown, a clamping slider 861 is provided at the bottom of the U-shaped frame 86. The clamping slider 861 is cylindrical, and a limiting hole 862 is provided at the bottom of the clamping slider 861. A first clamping head 87 is fixedly installed at the bottom ends of both ends of the gantry 84. The first clamping head 87 cooperates with the limiting hole 862. Two groups of second clamping heads 88 are symmetrically arranged at both ends of the gantry 84. The second clamping heads 88 are distributed on both sides of the transverse sliding groove 85. A positioning groove 860 is correspondingly provided on the U-shaped frame 86. When the positioning groove 860 cooperates with the second clamping head 88, the telescopic handle 6 and the axis where the cutting roller 20 is located are perpendicular in space.

[0036] Specifically, the gantry 84 and the transverse sliding groove 85 are provided to facilitate adjusting the position of the telescopic handle 6 relative to the frame two 50, and facilitating the operator to switch the connection part of the telescopic handle 6 after rotating the cutting roller 20. At the same time, in order to ensure that the cutting path is a straight line during cutting, by the cooperation of the second clamping head 88 and the U-shaped frame 86, the angle of the U-shaped frame 86 relative to the gantry 84 is locked. At this time, when the cutting roller 20 cooperates with the resistance roller 21 for cutting, the whole device will move forward in a straight line.

[0037] Further, as Figure 1 、 Figure 3 shown, the cutting roller 20 includes a plurality of continuously installed cutting saw blades, the resistance roller 21 includes a plurality of continuously installed resistance wheels, a second storage groove 23 is provided between the cutting saw blades, a first storage groove 22 is provided between the resistance wheels, the cutting saw blades and the resistance wheels are installed in a staggered manner, and the cutting saw blades cooperate with the first storage groove 22, the resistance wheels cooperate with the second storage groove 23, and a sponge cylinder 3 is rotatably installed on the upper side of the cutting roller 20. The sponge cylinder 3 is evenly provided with matching gaps corresponding to the cutting saw blades.

[0038] Specifically, in order to reduce the size of the device, the cutting saw blades and the resistance wheels are arranged at intervals through the first storage groove 22 and the second storage groove 23. At the same time, a sponge cylinder 3 is provided between the frame two 50. When the matching gaps between the cutting saw blades and the sponge cylinder 3 are in contact with each other, the water in the sponge cylinder 3 cools the cutting saw blades, reducing the cutting loss of the cutting saw blades, and at the same time avoiding generating a large amount of dust during cutting, ensuring the air quality of the working environment.

[0039] More specifically, the number of cutting saw blades provided, the interval distance between adjacent cutting saw blades, and the diameter of the cutting saw blades are adaptively matched according to the layout requirements of the pipeline groove. During cutting, multiple side-by-side arranged grooves are directly cut at one time, thereby effectively improving the cutting efficiency.

[0040] The working principle of the embodiment of the present invention is: As Figures 1-9As shown in the figure, the driving motor 7 drives the cutting roller 20 to rotate. The power of the driving motor 7 is transmitted to the resistance roller 21 through the transmission assembly 4, so that the cutting roller 20 and the resistance roller 21 rotate in opposite directions, delaying the forward speed of the cutting roller 20. The speed difference between the cutting roller 20 and the resistance roller 21 enables the overall device to move while effectively cutting. To achieve the reverse rotation of the cutting roller 20 and the resistance roller 21, an auxiliary pulley one 42 and an auxiliary pulley two 43 are respectively arranged on the upper and lower sides of the frame two 50. The power of the driving pulley 40 is transmitted to the driven pulley 41 by the auxiliary pulley one 42 and the auxiliary pulley two 43. At the same time, to ensure the transmission effect between the transmission belt 44 and the driven pulley 41, a tensioning pulley 45 is movably installed on the frame two 50 through a spring, and the tensioning pulley 45 is pressed on the transmission belt 44 by the elasticity of the spring. To facilitate the installation of the transmission belt 44 and further ensure the transmission effect of the transmission belt 44, the frame one 1 and the frame two 50 are movably installed through a clamping frame 54 and a slide rail 53. After the transmission belt 44 is installed, the telescopic motor 55 is controlled to move, so that the frame one 1 and the frame two 50 approach each other, and then the distance between the driving pulley 40 and the driven pulley 41 is reduced. Under the action of the auxiliary pulley one 42 and the auxiliary pulley two 43, the transmission belt 44 is tensioned, thus ensuring the transmission effect of the transmission belt 44. The frame one 1 and the frame two 50 are lifted by the telescopic cylinder and the lifting column 89, so that the cutting roller 20 and the resistance roller 21 are separated from the ground. At the same time, the power connection between the output shaft 72 and the cutting roller 20 is disconnected by controlling the clutch 71 through the telescopic rod 80, so that the bevel gear two 83 and the bevel gear one 82 are engaged with each other. At this time, when the driving motor 7 outputs power, the whole frame one 1 and the frame two 50 will rotate around the support ball hinge one 81. After the frame one 1 and the frame two 50 rotate 180 degrees, the cutting roller 20 and the resistance roller 21 are rotated to the edge of the just-opened cutting groove as a whole, which is convenient for the next stage of cutting groove cutting, applicable to dense pipeline cutting operations, and at the same time this cutting method is suitable for pipeline groove construction with a unified pipeline diameter. The gantry 84 and the transverse chute 85 are provided to facilitate the adjustment of the position of the telescopic handle 6 relative to the frame two 50, and to facilitate the operator to change the connection part of the telescopic handle 6 after rotating the cutting roller 20. At the same time, to ensure that the cutting path is a straight line during cutting, the angle of the U-shaped frame 86 relative to the gantry 84 is locked by the cooperation of the clamping head two 88 and the U-shaped frame 86. At this time, the whole device will move straight forward when the cutting roller 20 cooperates with the resistance roller 21 for cutting. To reduce the device size, the cutting saw blades and the resistance wheels are arranged at intervals in the receiving groove one 22 and the receiving groove two 23. At the same time, a sponge cylinder 3 is arranged between the frame two 50. When the fitting gaps between the cutting saw blades and the sponge cylinder 3 are in contact with each other, the water in the sponge cylinder 3 cools the cutting saw blades, reducing the cutting loss of the cutting saw blades, and at the same time avoiding a large amount of dust generated during cutting, ensuring the air quality of the working environment.The number of cutting saw blades, the spacing between adjacent cutting saw blades and the diameter of the cutting saw blades are adaptively matched according to the layout requirements of the pipeline grooves. During cutting, multiple grooves arranged side by side can be cut directly at one time, thereby effectively improving the cutting efficiency.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0042] 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 grooving device for laying out pipelines in construction, comprising a cutting roller (20), the cutting roller (20) being connected to a drive motor (7), the cutting roller (20) being rotatably mounted in a frame (1), characterized in that: A second frame (50) is arranged outside the first frame (1), a resistance roller (21) is rotatably mounted inside the second frame (50), the resistance roller (21) is mounted parallel to the cutting roller (20), a transmission assembly (4) is arranged between the cutting roller (20) and the resistance roller (21), the transmission assembly (4) is arranged at the edge of the second frame (50), the transmission assembly (4) is connected to a tensioning mechanism (5), a reversing mechanism (8) is also arranged on the second frame (50), and a telescopic handle (6) is connected to the second frame (50); The transmission assembly (4) comprises a driving pulley (40) connected to the journal of the cutting roller (20); a driven pulley (41) is connected to the journal of the resistance roller (21); the driving pulley (40) and the driven pulley (41) are installed at the same height; the radius of the driving pulley (40) is smaller than the radius of the driven pulley (41); the frame (50) is provided with an auxiliary pulley (42) and an auxiliary pulley (43) on the left side of the driving pulley (40); 3), the auxiliary pulley 1 (42) and the auxiliary pulley 2 (43) are respectively arranged on both sides of the center line connecting the driving pulley (40) and the driven pulley (41), and a transmission belt (44) is wound between the driving pulley (40), the driven pulley (41), the auxiliary pulley 1 (42) and the auxiliary pulley 2 (43), and a tension pulley (45) is also installed on the frame 2 (50), and the tension pulley (45) is close to the outer side of the transmission belt (44).

2. A grooving device for laying pipelines in construction according to claim 1, characterized in that: The tensioning mechanism (5) comprises an adjusting slot one (51) provided on the frame two (50); the shaft neck of the cutting roller (20) passes through the adjusting slot one (51) and is connected to the driving pulley (40); an adjusting slot two (52) is provided in the frame one (1); the resistance roller (21) passes through the adjusting slot two (52) and is rotatably connected to the frame two (50); a clamping frame (54) is provided on both sides of the frame one (1); a slide rail (53) is provided on the inner side of both ends of the frame two (50); the frame one (1) is slidably connected to the slide rail (53) via the clamping frame (54); a telescopic motor (55) is provided between the frame one (1) and the frame two (50); the two ends of the telescopic motor (55) are respectively fixedly connected to the frame one (1) and the frame two (50); and the frame two (50) is provided with a distance adjustment screw (56) on both sides of the telescopic motor (55).

3. A grooving device for laying pipelines in construction according to claim 1, characterized in that: The reversing mechanism (8) comprises a supporting ball joint 1 (81) and a supporting ball joint 2 (810); the driving motor (7) is connected to a transmission box (70); the transmission box (70) passes through the frame 2 (50) and is fixedly connected to the frame 1 (1); the driving motor (7) is connected to an output shaft (72); a telescopic rod (80) is arranged on the output shaft (72); a clutch (71) is arranged between the output shaft (72) and the journal of the cutting roller (20); the bottom of the transmission box (70) is rotatably connected to a bevel gear 1 (82); the bottom of the bevel gear 1 (82) is coaxially connected to a telescopic cylinder; the telescopic cylinder is coaxially installed with the supporting ball joint 1 (81); the output shaft (72) is provided with a bevel gear 2 (83); a lifting column (89) is arranged on a side of the frame 2 (50) away from the driving motor (7); the lifting column (89) is connected to the supporting ball joint 2 (810).

4. A grooving device for laying pipelines in construction according to claim 3, characterized in that: A gantry (84) is fixedly mounted on the upper side of the frame 2 (50), a transverse slide groove (85) is arranged on the top of the gantry (84), the transverse slide groove (85) runs through the upper and lower sides of the gantry (84), a U-shaped frame (86) is slidably mounted in the transverse slide groove (85), and the telescopic handle (6) is rotatably connected to the U-shaped frame (86).

5. A grooving device for laying pipelines in construction according to claim 4, characterized in that: A clamping slide block (861) is provided at the bottom of the U-shaped frame (86), the clamping slide block (861) is cylindrical, and a limiting hole (862) is provided at the bottom of the clamping slide block (861). A clamping joint (87) is fixedly installed at the bottom of both ends of the gantry (84), and the clamping joint (87) cooperates with the limiting hole (862). Two groups of clamping joints (88) are symmetrically provided at both ends of the gantry (84), and the clamping joints (88) are distributed on both sides of the transverse slide groove (85). A positioning groove (860) is correspondingly provided on the U-shaped frame (86), and when the positioning groove (860) cooperates with the clamping joint (88), the space between the telescopic handle (6) and the axis of the cutting roller (20) is vertical.

6. A grooving device for laying pipelines in construction according to claim 1, characterized in that: The cutting roller (20) comprises a plurality of continuously mounted cutting saw blades, the resistance roller (21) comprises a plurality of continuously mounted resistance wheels, a second receiving groove (23) is provided between the cutting saw blades, a first receiving groove (22) is provided between the resistance wheels, the cutting saw blades and the resistance wheels are installed in a staggered manner, the cutting saw blades cooperate with the first receiving groove (22), the resistance wheels cooperate with the second receiving groove (23), a sponge cylinder (3) is rotatably mounted on the upper side of the cutting roller (20), and the sponge cylinder (3) is evenly provided with matching gaps corresponding to the cutting saw blades.

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