A cutting device for municipal pipeline pre-buried construction

Abstract

The present invention discloses a municipal pipeline pre-buried construction cutting equipment in the field of municipal pipeline processing technology, comprising a base, a mobile support mechanism, a mobile positioning mechanism and a cutting mechanism, wherein the mobile support mechanism comprises a first mobile component, a mobile plate, an adjustment component and a rotating support wheel, and the mobile positioning mechanism comprises a second mobile component, a lifting frame and a positioning pressure wheel. The present invention reduces the influence between loading and unloading by separating the loading position and the unloading position of the pipeline; the pipeline is positioned and transferred by the mobile support mechanism and the mobile positioning mechanism, and the pipeline is cut during the transfer process, thereby improving the processing efficiency; when the pipeline is being cut, the pipeline can be loaded on the front side of the base at the same time, and when the pipeline moves to the rear side of the base and is unloaded, the mobile support mechanism and the mobile positioning mechanism can position the pipeline on the front side, thereby shortening the interval time between two pipeline processing, and further improving the processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of municipal pipeline processing, in particular to a cutting device for municipal pipeline pre-buried construction. Background Art

[0002] Before the municipal government carries out pre-buried construction of pipelines, it is necessary to cut the pipelines to the required length according to construction needs. The existing cutting devices usually include a positioning mechanism and a cutting mechanism. After the position of the pipeline is fixed, the cutting mechanism is used to cut the pipeline. However, when the pipeline diameter is large, the cutting mechanism is not sufficient to directly cut off the fixed pipeline, resulting in insufficient pipeline cutting.

[0003] A municipal pipe cutting device with patent publication number CN114851268A has a structure including a mounting seat, a rotating ring mechanism and a cutting mechanism. The rotating ring mechanism is internally fixed with a clamping mechanism and externally provided with a driving mechanism. The clamping mechanism can clamp and fix pipes of different diameters. The driving mechanism can drive the rotating ring mechanism to rotate, thereby driving the pipe to rotate, thereby completing the annular cutting of the pipe.

[0004] However, after the above-mentioned equipment completes pipe cutting, it is necessary to cancel the positioning of the pipe and then unload it, and then reload and position it before the next rotation and cutting can be carried out. Therefore, the loading of each pipe needs to wait until the unloading of the previous pipe is completed. The loading and unloading affect each other, and the interval time between the two processing is long, which affects the processing efficiency.

[0005] Based on this, the present invention designs a cutting device for municipal pipeline pre-buried construction to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a cutting device for pre-buried municipal pipeline construction to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A cutting device for pre-buried municipal pipeline construction comprises a base, wherein a cutting mechanism is arranged in the middle of the top of the base;

[0009] A fixed plate is provided on the front side of the base, and a support frame is provided on the rear side. Two symmetrical movable support mechanisms are provided on the top surface of the base between the fixed plate and the support frame. A movable positioning mechanism is provided above each movable support mechanism, and the rear ends of the two movable positioning mechanisms are fixed to the support frame.

[0010] The mobile support mechanism includes two first mobile components symmetrically arranged on the top of the base, a mobile plate is arranged on the top of the first mobile component, two symmetrical rotating support wheels are connected to the top of the mobile plate through an adjustment component, a transmission gear is coaxially fixed to one end of the rotating support wheel, and fixed racks are arranged at positions on both sides of the top surface of the base corresponding to the cutting mechanism, and the fixed racks are in corresponding contact with the transmission gear;

[0011] The mobile positioning mechanism includes two symmetrical second mobile components connected to the support frame, the bottoms of the two second mobile components are commonly connected to a mobile frame, the bottom of the mobile frame is connected to a lifting frame through a first hydraulic telescopic rod, and the bottom of the lifting frame is rotatably connected to two symmetrical and parallel positioning pressure wheels;

[0012] A first middle support structure and two first side support structures are provided on the top front side of the base, a second middle support structure and two second side support structures are provided on the top rear side of the base, the first middle support structure and the second middle support structure are located between the two first movable components, and the first side support structure and the second side support structure are respectively located on the outer sides of the corresponding first movable components.

[0013] Preferably, the adjustment assembly includes an intermediate platform fixed to the top surface of the movable plate, the middle part of the intermediate platform is rotatably connected with an adjustment screw, and first fixed shafts are respectively provided at both ends, and two symmetrically inclined rotating rods are rotatably connected to each first fixed shaft, and the outer ends of the rotating rods are rotatably connected to the ends of the rotating support wheels on both sides respectively;

[0014] End plates are symmetrically fixed at both ends of the movable plate, and both ends of the adjusting screw are rotatably connected to the end plates on the corresponding sides, and the ends extend out of the end plates and are connected to a separate driving structure. The threads on both side sections of the adjusting screw have opposite rotation directions and are respectively threadedly connected to adjusting blocks. The bottoms of the two adjusting blocks are slidably connected to the top surface of the movable plate, and a second fixed shaft is respectively fixed at both ends, and an oblique support rod is rotatably connected to the second fixed shaft, and one end of the oblique support rod is rotatably connected to the middle part of the corresponding rotating rod.

[0015] Preferably, the separate drive structure includes a transmission plate fixed at both ends of the adjusting screw, a plurality of transmission holes are evenly arranged on the outer surface of the transmission plate in the circumferential direction, the corresponding positions of the fixed plate and the support frame are rotatably connected with a drive shaft, the outer end of the drive shaft is connected to a motor, and the drive plate is fixed to the inner end, a plurality of transmission shafts are evenly fixed on the drive plate in the circumferential direction, and the positions of the transmission shafts and the transmission holes correspond one to one.

[0016] Preferably, a second worm gear is coaxially fixed to the outer end of the drive shaft, and a second worm is rotatably connected to the fixed plate and the support frame respectively, one end of the second worm is connected to a motor, and the second worm is meshed with two second worm gears on the corresponding sides.

[0017] Preferably, the first movable component includes a movable groove arranged on the top of the base, a first movable block is slidably connected in the movable groove, the top of the first movable block is fixedly connected to the bottom of the movable plate, a first screw is threadedly connected in the first movable block, both ends of the first screw are rotatably connected to the support frame and the fixed plate, and the rear end extends out of the support frame and is connected to a motor.

[0018] Preferably, the second moving assembly includes a guide frame fixed on the support frame, a second screw is rotatably connected to the guide frame, the rear end of the second screw extends out of the support frame and is connected to a motor, a second moving block is threadedly connected to the second screw, the second moving block is slidably connected to the guide frame, the position of the second moving block corresponds to the position of the first moving block, and the moving frame is fixed to the bottom ends of the two second moving blocks.

[0019] Preferably, the rear ends of the first screw and the second screw extend out of the support frame, and are respectively fixed with a third worm gear and a fourth worm gear; two symmetrical and vertical third worm gears are rotatably connected to the rear side surface of the support frame; the upper and lower parts of each third worm gear are respectively meshed with the third worm gear and the fourth worm gear at the corresponding position; a transmission pulley is fixed to the bottom of the third worm gear, the two transmission pulleys are connected by a transmission belt, and a motor is connected to the top of one of the third worm gears.

[0020] Preferably, the cutting mechanism includes a cutting seat slidably connected to the middle of the top surface of the base, the front side of the cutting seat is connected to the top of the base through a second hydraulic telescopic rod, two cutting frames are symmetrically fixed on the top of the cutting seat, a cutting knife is rotatably connected between the tops of the two cutting frames, a first gear is coaxially fixed to one side of the cutting knife, a second gear is meshed with the bottom of the first gear, the second gear is connected to a motor, and the motor is fixed to the top of the cutting seat.

[0021] Preferably, the first intermediate support structure, the first side support structure, the second intermediate support structure and the second side support structure have the same structure and include two parallel fixed wheel frames fixed to the top surface of the base, a plurality of support rollers are evenly arranged and rotated between the upper parts of the two fixed wheel frames, a concave tube groove is arranged around the middle part of the circumferential surface of the support roller, and the two side walls of the tube groove are arranged to be symmetrical conical surfaces.

[0022] Preferably, a first worm gear is coaxially fixed to one end of the multiple support rollers located in the first middle support structure and the second side support structure, and a first worm is commonly meshed at the bottom of the multiple first worm gears located on the same fixed wheel frame. The first worm is rotatably connected to the fixed wheel frame and has one end connected to a motor.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention separates the loading position and unloading position of the pipeline by arranging the first intermediate support structure and the first side support structure on the front side of the base, and arranging the second intermediate support structure and the second side support structure on the rear side of the base, thereby reducing the influence between loading and unloading;

[0025] 2. The present invention realizes the positioning of the pipeline in the circumferential direction and the transfer from front to back through the mobile support mechanism at the bottom and the mobile positioning mechanism at the top, and realizes the cutting of the pipeline during the transfer process, making the cutting faster, more convenient and improving the processing efficiency;

[0026] 3. In the process of moving the pipeline, the present invention realizes the driving of the rotating support wheel and the pipeline by rotating the transmission gear on the support wheel and the fixed rack on the base, so that the pipeline can be cut along the circumferential direction, making the cutting more complete;

[0027] 4. In the present invention, when the pipe is being cut, the front side of the base can simultaneously load the pipe. When the pipe moves to the rear side of the base and is unloaded, the mobile support mechanism and the mobile positioning mechanism can position the pipe on the front side, thereby shortening the interval time between two pipe processings and further improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the mobile support mechanism of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the mobile positioning mechanism of the present invention;

[0032] Figure 4 It is a schematic structural diagram of the cutting mechanism of the present invention;

[0033] Figure 5 for Figure 1 Schematic diagram of the structure at A in the middle;

[0034] Figure 6 for Figure 1 Schematic diagram of the structure at B in the middle;

[0035] Figure 7 for Figure 1 Schematic diagram of the structure at C in the middle;

[0036] Figure 8 It is a schematic diagram of the structure of the support roller and the fixed wheel frame of the present invention;

[0037] Fig. 9 It is a schematic diagram of the end structure of the first screw and the second screw of the present invention;

[0038] Fig.10 It is a schematic diagram of the end structure of the support roller of the present invention.

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] 100-base, 101-first side support structure, 102-first middle support structure, 103-second side support structure, 104-second middle support structure, 105-movable groove, 106-fixed plate, 107-fixed rack, 108-fixed wheel frame, 109-support roller, 110-first worm wheel, 111-first worm;

[0041] 200-movable support mechanism, 201-movable plate, 202-first moving block, 203-first screw rod, 204-intermediate platform, 205-rotating support wheel, 206-rotating rod, 207-first fixed shaft, 208-transmission gear;

[0042] 300-mobile positioning mechanism, 301-support frame, 302-mobile frame, 303-lifting frame, 304-first hydraulic telescopic rod, 305-positioning pressure wheel, 306-second mobile block, 307-second screw rod, 308-guide frame, 309-reinforcement plate;

[0043] 400-cutting mechanism, 401-cutting seat, 402-second hydraulic telescopic rod, 403-cutting knife, 404-cutting frame, 405-first gear, 406-second gear;

[0044] 500-adjusting screw, 501-adjusting block, 502-end plate, 503-diagonal support rod, 504-second fixed shaft, 505-transmission plate, 506-transmission hole;

[0045] 600-driving plate, 601-transmission shaft, 602-driving shaft, 603-second worm wheel, 604-second worm;

[0046] 700-third worm, 701-fourth worm wheel, 702-third worm wheel, 703-transmission pulley. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Embodiment 1

[0048] Please refer to the accompanying drawings, the present invention provides a technical solution:

[0049] A cutting device for municipal pipeline pre-buried construction, such as Figure 1 As shown, it includes a base 100, and a cutting mechanism 400 is provided in the middle of the top of the base 100;

[0050] A fixing plate 106 is provided on the front side of the base 100, and a support frame 301 is provided on the rear side. Two symmetrical mobile support mechanisms 200 are provided on the top surface of the base 100 between the fixing plate 106 and the support frame 301. A mobile positioning mechanism 300 is provided above each mobile support mechanism 200, and the rear ends of the two mobile positioning mechanisms 300 are fixed to the support frame 301.

[0051] like Figure 1 , 2 As shown, the mobile support mechanism 200 includes two first mobile components symmetrically arranged on the top of the base 100, a mobile plate 201 is arranged on the top of the first mobile component, and two symmetrical rotating support wheels 205 are connected to the top of the mobile plate 201 through an adjustment component, and a transmission gear 208 is coaxially fixed to one end of the rotating support wheel 205, and fixed racks 107 are arranged on the top surface of the base 100 at positions on both sides of the cutting mechanism 400, as shown in FIG. Figure 5 As shown, the fixed rack 107 is in corresponding contact with the transmission gear 208;

[0052] like Figure 3 As shown, the mobile positioning mechanism 300 includes two symmetrical second mobile components connected to the support frame 301, the bottoms of the two second mobile components are commonly connected to a mobile frame 302, the bottom of the mobile frame 302 is connected to a lifting frame 303 through a first hydraulic telescopic rod 304, and the bottom of the lifting frame 303 is rotatably connected to two symmetrical and parallel positioning pressure wheels 305;

[0053] A first intermediate support structure 102 and two first side support structures 101 are provided on the top front side of the base 100, and a second intermediate support structure 104 and two second side support structures 103 are provided on the top rear side of the base 100. The first intermediate support structure 102 and the second intermediate support structure 104 are located between the two first movable components, and the first side support structure 101 and the second side support structure 103 are respectively located on the outer sides of the corresponding first movable components.

[0054] When cutting the pipeline, the pipeline is moved to the top of the first middle support structure 102 and the first side support structure 101 on the front side of the base 100 through an external auxiliary device or tool, and the position of the pipeline is adjusted so that the cutting position on it corresponds to the position of the cutting mechanism 400. The movable plate 201 and the rotating support wheel 205 of the movable support mechanism 200 are located below the pipeline. The position of the rotating support wheel 205 is adjusted by adjusting the assembly so that the two rotating support wheels 205 at the corresponding positions move toward the pipeline, and lift the pipeline and separate it from the first middle support structure 102 and the first side support structure 101. At the same time, the first hydraulic telescopic rod 304 drives the lifting frame 303 and the positioning pressure wheel 305 to move downward, and the two positioning pressure wheels 305 at the corresponding positions are pressed tightly on both sides of the top of the pipeline, so that the pipeline is positioned in the circumferential direction by the rotating support wheels 205 at both sides of the bottom and the positioning pressure wheels 305 at both sides of the top.

[0055] The first moving assembly and the second moving assembly are started, so that the moving plate 201 and the moving frame 302 can drive the pipeline to move to the rear side. When the pipeline approaches the cutting mechanism 400, the transmission gear 208 contacts and meshes with the fixed rack 107. When the pipeline continues to move, the transmission gear 208 drives the rotating support wheel 205 to rotate through the relative movement between the transmission gear 208 and the fixed rack 107, thereby driving the pipeline to rotate, so that when the pipeline rotates and passes through the cutting mechanism 400, the cutting mechanism 400 cuts the pipeline along the circumferential direction of the pipeline;

[0056] When the cutting mechanism 400 contacts the bottom of the pipe and performs cutting, the cutting mechanism 400 moves a certain distance together with the pipe, so as to ensure that the pipe can be completely cut off by the cutting mechanism 400 during the process of the pipe moving and rotating.

[0057] When the pipe is cut, the transmission gear 208 disengages from the fixed rack 107 during the subsequent movement, and the cutting mechanism 400 returns to the front side. When the pipe moves to the second intermediate support structure 104 and the second side support structure 103 on the rear side, the adjustment component adjusts the position of the rotating support wheel 205 to move it downward and disengage it from the pipe. At the same time, the pipe falls to the top of the second intermediate support structure 104 and the second side support structure 103.

[0058] Through the action of the first moving component and the second moving component, the rotating support wheel 205 and the positioning pressure wheel 305 quickly return forward, and repeat the above process to cut the next pipe without adjusting the position of the positioning pressure wheel 305 again, reducing the positioning operation, and the two sections of the pipe in the cut state located on the second middle support structure 104 and the second side support structure 103 move to both sides and unload.

[0059] The present application can complete the cutting process while the pipeline is moving, so that the operation of transferring the pipeline from the loading position to the lower feeding position can be carried out simultaneously with the cutting process, thereby improving the processing efficiency;

[0060] When the pipe of the present application is being cut, the first intermediate support structure 102 and the first side support structure 101 can load the pipe at the same time. When the pipe moves to the second intermediate support structure 104 and the second side support structure 103 on the rear side and is unloaded, the mobile support mechanism 200 and the mobile positioning mechanism 300 can position the pipe on the front side, so that the loading and unloading of the pipe do not affect each other, and the interval time between two pipe processing is shortened, thereby further improving the processing efficiency.

[0061] Among them, Figure 2 As shown, the adjustment assembly includes an intermediate platform 204 fixed to the top surface of the movable plate 201, the middle part of the intermediate platform 204 is rotatably connected with an adjustment screw 500, and first fixed shafts 207 are respectively provided at both ends, and two symmetrically inclined rotating rods 206 are rotatably connected to each first fixed shaft 207, and the outer ends of the rotating rods 206 are rotatably connected to the ends of the rotating support wheels 205 on both sides respectively;

[0062] End plates 502 are symmetrically fixed at both ends of the movable plate 201, and both ends of the adjusting screw 500 are rotatably connected to the end plates 502 on the corresponding sides, and the ends extend out of the end plates 502 and are connected to a separate driving structure. The thread rotation directions of the two side sections of the adjusting screw 500 are opposite, and they are respectively threadedly connected with adjusting blocks 501. The bottoms of the two adjusting blocks 501 are slidably connected to the top surface of the movable plate 201, and a second fixed shaft 504 is fixed at both ends. The second fixed shaft 504 is rotatably connected to a diagonal support rod 503, and one end of the diagonal support rod 503 is rotatably connected to the middle part of the corresponding rotating rod 206.

[0063] When the rotating support wheel 205 moves to the front side of the top of the base 100, its height position is lower than the bottom position of the pipe, and then the two adjusting screws 500 are rotated through the separate driving structure on the front side, so that the two adjusting blocks 501 move toward the middle platform 204 at the same time. During the movement, the diagonal support rod 503 moves accordingly and drives the rotating rod 206 to rotate, so that the two rotating support wheels 205 rotate toward the inner position at the same time. During the rotation, the rotating support wheel 205 contacts the bottom of the pipe and lifts it up, separating it from the first middle support structure 102 and the first side support structure 101;

[0064] When the rotating support wheel 205 and the pipeline move to the rear side of the top of the base 100 and unload, the separate drive structure on the rear side drives the rod adjustment screw 500 to reverse, thereby causing each structure to move back to its original position, so that the pipeline gradually moves downward and falls onto the second middle support structure 104 and the second side support structure 103, and the rotating support wheel 205 disengages from the pipeline so as to return forward.

[0065] Among them, Figure 2 As shown, the separate drive structure includes a transmission plate 505 fixed to both ends of the adjusting screw 500, and a plurality of transmission holes 506 are evenly arranged on the outer surface of the transmission plate 505 in the circumferential direction. The corresponding positions of the fixed plate 106 and the support frame 301 are rotatably connected with a drive shaft 602, and the outer end of the drive shaft 602 is connected to a motor, and the inner end is fixed with a drive plate 600, as shown in FIG. Figure 6 As shown, a plurality of transmission shafts 601 are evenly fixed on the driving disk 600 along the circumferential direction, and the positions of the transmission shafts 601 and the transmission holes 506 correspond one to one.

[0066] When the adjusting screw 500 moves to the front side of the base 100, the transmission disk 505 at the front position is located on the driving disk 600 on the fixed plate 106, and the transmission shaft 601 enters the corresponding transmission hole 506. When the driving shaft 602 and the driving disk 600 are rotated by the motor, the transmission disk 505 drives the adjusting screw 500 under the action of the transmission shaft 601 and the transmission hole 506, so as to adjust the position of the rotating support wheel 205, and when the adjusting screw 500 moves to the rear side of the base 100, the rear motor and the driving disk 600 drive the transmission disk 505 and the adjusting screw 500 through the same structure and principle to return the rotating support wheel 205 to its original position.

[0067] Among them, Figure 7As shown, a second worm gear 603 is coaxially fixed to the outer end of the driving shaft 602, and a second worm 604 is rotatably connected to the fixing plate 106 and the supporting frame 301 respectively, one end of the second worm 604 is connected to a motor, and the second worm 604 is meshed with the two second worm gears 603 on the corresponding side. Through the drive of the motor and the transmission of the second worm gear 603 and the second worm 604, the two driving disks 600 on the same side can rotate at the same time, so that the adjusting screws 500 in the two movable supporting mechanisms 200 can rotate at the same time and adjust the position of the rotating support wheel 205.

[0068] Among them, Figure 4 As shown, the cutting mechanism 400 includes a cutting seat 401 which is slidably connected to the middle of the top surface of the base 100, the front side of the cutting seat 401 is connected to the top of the base 100 through a second hydraulic telescopic rod 402, two cutting frames 404 are symmetrically fixed to the top of the cutting seat 401, a cutting knife 403 is rotatably connected between the tops of the two cutting frames 404, a first gear 405 is coaxially fixed to one side of the cutting knife 403, a second gear 406 is meshed at the bottom of the first gear 405, the second gear 406 is connected to a motor, and the motor is fixed to the top of the cutting seat 401.

[0069] When the cutting mechanism 400 is working, the cutting knife 403 is rotated by the drive of the motor and the transmission of the first gear 405 and the second gear 406 to cut the pipeline, and when the pipeline cutting position passes through the cutting knife 403, the cutting seat 401 is moved a distance together with the pipeline through the second hydraulic telescopic rod 402, so that during the movement and rotation of the pipeline, the cutting knife 403 always keeps in contact with the pipeline cutting position to ensure the cutting effect of the pipeline, and when the pipeline continues to move backward, the second hydraulic telescopic rod 402 drives the cutting seat 401 to move forward and back to its position. Embodiment 2

[0070] The structure of this embodiment is basically the same as that of the first embodiment, except that the first moving component includes a moving groove 105 arranged on the top of the base 100, and a first moving block 202 is slidably connected in the moving groove 105. The top of the first moving block 202 is fixedly connected to the bottom of the moving plate 201, and a first screw rod 203 is threadedly connected in the first moving block 202. Both ends of the first screw rod 203 are rotatably connected to the support frame 301 and the fixed plate 106, and the rear end extends out of the support frame 301 and is connected to a motor. The first screw rod 203 is driven by the motor to make the first moving block 202 drive the moving plate 201 to move, thereby adjusting the position of the rotating support wheel 205 and the pipeline.

[0071] The second moving component includes a guide frame 308 fixed on the support frame 301, and a second screw rod 307 is rotatably connected to the guide frame 308. The rear end of the second screw rod 307 extends out of the support frame 301 and is connected to a motor. A second moving block 306 is threadedly connected to the second screw rod 307. The second moving block 306 is slidably connected to the guide frame 308. The position of the second moving block 306 corresponds to the position of the first moving block 202, and the moving frame 302 is fixed to the bottom end of the two second moving blocks 306. The second screw rod 307 is driven by the motor to drive the second moving block 306 to move and adjust the position of the lifting frame 303 and the positioning pressure wheel 305. A triangular reinforcing plate 309 is fixed between the top of the guide frame 308 and the front side of the top of the support frame 301 to improve the position stability of the guide frame 308. Embodiment 3

[0072] The structure of this embodiment is basically the same as that of the second embodiment, except that Fig. 9 As shown, the rear ends of the first screw 203 and the second screw 307 extend out of the support frame 301, and are respectively fixed with a third worm gear 702 and a fourth worm gear 701, and two symmetrical and vertical third worm gears 700 are rotatably connected to the rear side surface of the support frame 301, and the upper and lower parts of each third worm gear 700 are respectively meshed with the third worm gear 702 and the fourth worm gear 701 at the corresponding position, and a transmission pulley 703 is fixed to the bottom of the third worm gear 700, and the two transmission pulleys 703 are connected by a transmission belt, and a motor is connected to the top of one of the third worm gears 700, and the two third worm gears 700 are driven by the motor and the transmission of the transmission pulley 703 to rotate simultaneously, and then the two first screws 203 and the two second screws 307 are driven by the third worm gear 702 and the fourth worm gear 701 to rotate simultaneously, so that the positioning pressure wheel 305 and the rotating support wheel 205 move synchronously and the pipeline is transferred. Embodiment 4

[0073] The structure of this embodiment is basically the same as that of the first embodiment, except that Figure 1 As shown, the first middle support structure 102, the first side support structure 101, the second middle support structure 104 and the second side support structure 103 have the same structure and include two parallel fixed wheel frames 108 fixed to the top surface of the base 100, as shown in FIG. Figure 8 As shown, a plurality of support rollers 109 are evenly arranged and rotated between the upper parts of the two fixed wheel frames 108, a concave pipe groove is arranged around the middle part of the circumferential surface of the support roller 109, and the two side walls of the pipe groove are set as symmetrical conical surfaces. When the pipe is loaded and unloaded, it is respectively located on the plurality of support rollers 109 on the front side of the base 100 and the plurality of support rollers 109 on the rear side of the base 100, and the pipe can automatically adjust its position through the pipe groove and be located in the middle of the top of the support roller 109, so as to facilitate subsequent positioning and movement. Embodiment 5

[0074] The structure of this embodiment is basically the same as that of the fourth embodiment, except that Fig.10 As shown, a first worm gear 110 is coaxially fixed to one end of a plurality of support rollers 109 located in the first middle support structure 102 and the second side support structure 103, and a first worm 111 is commonly meshed at the bottom of a plurality of first worm gears 110 located on the same fixed wheel frame 108. The first worm 111 is rotationally connected to the fixed wheel frame 108, and a motor is connected to one end thereof.

[0075] When the pipe is loaded, it is placed on the first middle support structure 102 and the first side support structure 101, and is located in the middle of the top of the plurality of support rollers 109. The motor of the first middle support structure 102 drives the first worm 111, and then the plurality of first worm gears 110 drive the plurality of support rollers 109 to rotate, so as to adjust the position of the pipe, so that the pipe position adjustment is faster and more convenient, and the cutting position on the pipe corresponds to the position of the cutting mechanism 400;

[0076] When cutting pipes, they are placed on the second middle support structure 104 and the second side support structure 103, and are located in the middle of the tops of the multiple support rollers 109. The corresponding first worm gears 111 are driven by the motors of the two second side support structures 103, respectively, so that the multiple first worm gears 110 drive the multiple support rollers 109 to rotate, and the support rollers 109 in the two second side support structures 103 rotate in opposite directions, so that the two sections of the cut pipes are moved to both sides for cutting.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0078] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cutting device for pre-buried municipal pipeline construction, comprising a base (100), wherein a cutting mechanism (400) is provided in the middle of the top of the base (100), characterized in that: The front side of the base (100) is provided with a fixing plate (106), and the rear side is provided with a supporting frame (301); the top surface of the base (100) is provided with two symmetrical movable supporting mechanisms (200) at a position between the fixing plate (106) and the supporting frame (301); a movable positioning mechanism (300) is provided above each movable supporting mechanism (200), and the rear ends of the two movable positioning mechanisms (300) are fixed to the supporting frame (301); The movable support mechanism (200) comprises two first movable components symmetrically arranged on the top of the base (100), a movable plate (201) is provided on the top of the first movable component, two symmetrical rotating support wheels (205) are connected to the top of the movable plate (201) via an adjustment component, a transmission gear (208) is coaxially fixed to one end of the rotating support wheel (205), and fixed racks (107) are provided at positions on both sides of the top surface of the base (100) corresponding to the cutting mechanism (400), and the fixed racks (107) are in corresponding contact with the transmission gear (208); The mobile positioning mechanism (300) comprises two symmetrical second mobile components connected to the support frame (301); the bottoms of the two second mobile components are commonly connected to a mobile frame (302); the bottom of the mobile frame (302) is connected to a lifting frame (303) via a first hydraulic telescopic rod (304); and the bottom of the lifting frame (303) is rotatably connected to two symmetrical and parallel positioning pressure wheels (305); A first middle support structure (102) and two first side support structures (101) are provided on the top front side of the base (100), and a second middle support structure (104) and two second side support structures (103) are provided on the top rear side of the base (100), the first middle support structure (102) and the second middle support structure (104) are located between the two first movable components, and the first side support structure (101) and the second side support structure (103) are respectively located on the outer sides of the corresponding first movable components; The adjustment assembly comprises an intermediate platform (204) fixed to the top surface of the movable plate (201), the middle part of the intermediate platform (204) is rotatably connected to an adjustment screw (500), and first fixed shafts (207) are respectively provided at both ends, and each of the first fixed shafts (207) is rotatably connected to two symmetrically inclined rotating rods (206), and the outer ends of the rotating rods (206) are respectively rotatably connected to the ends of the rotating support wheels (205) on both sides; The two ends of the movable plate (201) are symmetrically fixed with end plates (502), the two ends of the adjusting screw rod (500) are rotatably connected to the end plates (502) on the corresponding sides, and the ends extend out of the end plates (502) and are connected to a separate driving structure, the two side sections of the adjusting screw rod (500) have opposite thread rotation directions and are respectively threadedly connected to the adjusting blocks (501), the bottoms of the two adjusting blocks (501) are slidably connected to the top surface of the movable plate (201), and the two ends are respectively fixed with a second fixed shaft (504), the second fixed shaft (504) is rotatably connected to an oblique support rod (503), and one end of the oblique support rod (503) is rotatably connected to the middle part of the corresponding rotating rod (206); The separate drive structure comprises a transmission disk (505) fixed to both ends of the adjusting screw (500), a plurality of transmission holes (506) are evenly arranged in a circumferential direction on the outer surface of the transmission disk (505), the corresponding positions of the fixing plate (106) and the support frame (301) are rotatably connected to a drive shaft (602), the outer end of the drive shaft (602) is connected to a motor, and the inner end is fixed to the drive disk (600), and a plurality of transmission shafts (601) are evenly fixed on the drive disk (600) along the circumferential direction, and the positions of the transmission shafts (601) and the transmission holes (506) correspond one to one; A second worm gear (603) is coaxially fixed to the outer end of the driving shaft (602); a second worm (604) is rotatably connected to the fixing plate (106) and the support frame (301), one end of the second worm (604) is connected to a motor, and the second worm (604) is meshed with two second worm gears (603) on the corresponding side.

2. The cutting device for pre-buried municipal pipeline construction according to claim 1 is characterized in that: The first moving assembly comprises a moving groove (105) arranged at the top of the base (100), a first moving block (202) being slidably connected in the moving groove (105), a top end of the first moving block (202) being fixedly connected to the bottom of the moving plate (201), a first screw rod (203) being threadedly connected in the first moving block (202), two ends of the first screw rod (203) being rotatably connected to the support frame (301) and the fixed plate (106), and a rear end extending out of the support frame (301) and being connected to a motor.

3. The cutting equipment for pre-buried municipal pipeline construction according to claim 2 is characterized in that: The second moving assembly comprises a guide frame (308) fixed on the support frame (301), a second screw rod (307) being rotatably connected to the guide frame (308), a rear end of the second screw rod (307) extending out of the support frame (301) and being connected to a motor, a second moving block (306) being threadedly connected to the second screw rod (307), the second moving block (306) being slidably connected to the guide frame (308), a position of the second moving block (306) corresponding to a position of the first moving block (202), and the moving frame (302) being fixed to the bottom ends of the two second moving blocks (306).

4. The cutting device for pre-buried municipal pipeline construction according to claim 3 is characterized by: The rear ends of the first screw (203) and the second screw (307) extend out of the support frame (301) and are respectively fixed with a third worm gear (702) and a fourth worm gear (701); two symmetrical and vertical third worm gears (700) are rotatably connected to the rear side surface of the support frame (301); the upper and lower parts of each third worm gear (700) are respectively meshed with the third worm gear (702) and the fourth worm gear (701) at corresponding positions; a transmission pulley (703) is fixed to the bottom of the third worm gear (700); the two transmission pulleys (703) are connected by a transmission belt, and a motor is connected to the top end of one of the third worm gears (700).

5. The cutting equipment for pre-buried municipal pipeline construction according to claim 1 is characterized by: The cutting mechanism (400) comprises a cutting seat (401) slidably connected to the middle of the top surface of the base (100); the front side of the cutting seat (401) is connected to the top of the base (100) via a second hydraulic telescopic rod (402); two cutting frames (404) are symmetrically fixed to the top of the cutting seat (401); a cutting knife (403) is rotatably connected between the tops of the two cutting frames (404); a first gear (405) is coaxially fixed to one side of the cutting knife (403); a second gear (406) is meshed at the bottom of the first gear (405); the second gear (406) is connected to a motor, and the motor is fixed to the top of the cutting seat (401).

6. The cutting equipment for pre-buried municipal pipeline construction according to claim 1 is characterized by: The first middle support structure (102), the first side support structure (101), the second middle support structure (104) and the second side support structure (103) have the same structure and include two parallel fixed wheel frames (108) fixed to the top surface of the base (100), a plurality of support rollers (109) are evenly arranged and rotated between the upper parts of the two fixed wheel frames (108), a concave tube groove is arranged around the middle of the circumferential surface of the support roller (109), and the two side walls of the tube groove are arranged as symmetrical conical surfaces.

7. The cutting device for pre-buried municipal pipeline construction according to claim 6 is characterized by: A first worm gear (110) is coaxially fixed to one end of a plurality of the support rollers (109) located in the first middle support structure (102) and the second side support structure (103); a first worm gear (111) is meshed with each other at the bottom of a plurality of the first worm gears (110) located on the same fixed wheel frame (108); the first worm gear (111) is rotationally connected to the fixed wheel frame (108) and one end of the first worm gear is connected to a motor.

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