阅读说明：本技术 一种市政给排水管道切割机 (Municipal administration water supply and drainage pipeline cutting machine ) 是由 陈洪涛 张生晓 沈庆军 张豪 朱世营 丁宇亮 杜建华 崔勇 王栋 于 2021-04-26 设计创作，主要内容包括：本发明公开了一种市政给排水管道切割机,包括加工台,所述加工台的顶部固定安装有夹持机构和弧形支撑板,加工台的顶部固定安装有四个立柱,四个立柱呈两两对称设置,四个立柱的顶端固定安装有同一个横板。本发明设计合理,实用性好,通过调节三个弧形夹板的位置适用于对不同直径的管道进行稳固夹持,方便对管道进行切割工作,并且在切割管道的过程中可对管道进行二次固定,能够有效的避免管道在切割时发生偏移的情况,提高了对管道的切割质量,而且能够对切割管道过程中产生的灰尘杂质进行有效的除尘净化,有效的改善工作周围的环境和空气质量,大大的降低了对环境的污染,不易对工作人员的身体健康造成伤害。(The invention discloses a municipal water supply and drainage pipeline cutting machine which comprises a processing table, wherein a clamping mechanism and an arc-shaped supporting plate are fixedly installed at the top of the processing table, four stand columns are fixedly installed at the top of the processing table, the four stand columns are symmetrically arranged in pairs, and the top ends of the four stand columns are fixedly provided with a transverse plate. The pipeline cutting device is reasonable in design and good in practicability, the pipeline cutting device is suitable for stably clamping pipelines with different diameters by adjusting the positions of the three arc-shaped clamping plates, the pipeline cutting work is convenient, the pipeline can be secondarily fixed in the pipeline cutting process, the pipeline can be effectively prevented from deviating in the pipeline cutting process, the pipeline cutting quality is improved, dust and impurities generated in the pipeline cutting process can be effectively removed and purified, the environment and the air quality around the pipeline are effectively improved, the pollution to the environment is greatly reduced, and the harm to the health of workers is not easily caused.)

1. The utility model provides a municipal administration water supply and drainage pipeline cutting machine, includes processing platform (1), its characterized in that: the top of the processing table (1) is fixedly provided with a clamping mechanism (2) and an arc-shaped supporting plate (3), the top of the processing table (1) is fixedly provided with four upright posts (4), the four upright posts (4) are arranged in a pairwise symmetry manner, the top ends of the four upright posts (4) are fixedly provided with a same transverse plate (5), the top of the transverse plate (5) is fixedly provided with a collecting box (6) and a first air cylinder (7), the top of the collecting box (6) is of an open structure, the output shaft end of the first air cylinder (7) is fixedly provided with a first telescopic column (8), the top of the transverse plate (5) is provided with a first through hole, the bottom end of the first telescopic column (8) penetrates through the first through hole and is fixedly provided with a mounting plate (9), the bottom of the mounting plate (9) is fixedly provided with a motor base (10) and a protective cover (11), the bottom of the protective cover (11) is of an open structure, the bottom of the motor base (10) is fixedly provided with a motor (12), set up pivot (13) in protection casing (11), the fixed cover is equipped with cutter (14) on pivot (13), the bottom of cutter (14) extends to outside protection casing (11), all seted up the mounting hole on the both sides inner wall of protection casing (11), the both ends of pivot (13) run through corresponding mounting hole respectively, the one end of pivot (13) and the output shaft end fixed connection of motor (12), the fixed cover is equipped with two first bevel gears (15) on pivot (13), two first bevel gears (15) symmetry set up the both sides at protection casing (11), the both sides of protection casing (11) all fixed mounting have fixing base (16) and suction tube (17), two fixing base (16) are located the below of corresponding suction tube (17) respectively, the one side that two suction tube (17) kept away from each other is closed structure, the one end that two suction tube (17) are close to each other all extends to in protection casing (11), vertical shafts (18) are rotatably mounted on the two fixing seats (16), second bevel gears (19) are fixedly mounted at the bottom ends of the two vertical shafts (18), the two second bevel gears (19) are respectively meshed with the corresponding first bevel gears (15), round holes are formed in the inner walls of the bottoms of the two dust cylinders (17), corresponding round holes are respectively penetrated through the top ends of the two vertical shafts (18), third bevel gears (20) are fixedly mounted at the top ends of the two vertical shafts (18), partition plates (21) are fixedly mounted in the two dust cylinders (17), transverse shafts (22) are rotatably mounted on the two partition plates (21), fourth bevel gears (23) are fixedly sleeved on the two transverse shafts (22), the two third bevel gears (20) are respectively meshed with the corresponding fourth bevel gears (23), dust collection fan blades (24) are fixedly mounted at one ends, close to each other, of the two transverse shafts (22), the top parts of the two dust cylinders (17) are fixedly provided with first dust conveying pipes (25) which are obliquely arranged, the bottom ends of the two first dust conveying pipes (25) respectively extend into the corresponding dust cylinders (17), the top parts of the mounting plates (9) are fixedly provided with second dust conveying pipes (26), the top ends of the two first dust conveying pipes (25) respectively penetrate through the mounting plates (9) and are fixedly connected with the bottom parts of the second dust conveying pipes (26), the two first dust conveying pipes (25) are communicated with the second dust conveying pipe (26), one end of the second dust conveying pipe (26) is fixedly connected with a hose (27), one side, close to the first cylinder (7), of the collection box (6) is fixedly provided with a dust exhaust pipe (28), one end of the dust exhaust pipe (28) extends into the collection box (6), and the bottom end of the dust exhaust pipe (28) penetrates through the transverse plate (5) and is fixedly connected with one end, far away from the second dust conveying pipe (26), of the hose (27);

a fixed shaft (29) is fixedly mounted on one side of the mounting plate (9), a sliding groove (30) is formed in the bottom end of the fixed shaft (29), a sliding rod (31) is slidably mounted in the sliding groove (30), a spring (32) is fixedly mounted at the top end of the sliding rod (31), the top end of the spring (32) is fixedly connected with the inner wall of the top of the sliding groove (30), the bottom end of the sliding rod (31) extends out of the sliding groove (30) and is fixedly mounted with an arc-shaped pressing plate (33), the arc-shaped pressing plate (33) is located right above the arc-shaped supporting plate (3), flexible gaskets are arranged on the side, close to each other, of the arc-shaped pressing plate (33) and the arc-shaped supporting plate (3), and a plurality of spherical balls are embedded in the flexible gaskets;

the clamping mechanism (2) comprises a fixed seat (34), a circular clamping through hole (35), three second cylinders (36), three second telescopic columns (37) and three arc-shaped clamping plates (38), the bottom of the fixed seat (34) is fixedly connected with the top of the processing table (1), the clamping through hole (35) is arranged on one side of the fixed seat (34), pulleys are arranged on the rod body shells of the two second cylinders (36) on the lower side,

arc-shaped grooves are respectively arranged on two sides of a seat body of a fixed seat (34) at the top of the machining table (1), the two arc-shaped grooves are positioned on the same arc, the circle center of the same arc is positioned on the central axis of a circular clamping through hole (35), the two arc-shaped grooves are both positioned on the rotating path of a second air cylinder (36), pulleys of two second air cylinder (36) bodies positioned on the lower side, which are far away from the circular clamping through hole (35), are externally leaked at the bottom of the seat body of the fixed seat (34) and are respectively supported in the two arc-shaped grooves in a sliding manner, and one arc-shaped protrusion is arranged in one arc-shaped groove;

the second through-hole has all been seted up on the top inner wall of centre gripping through-hole (35) and the front and back both sides inner wall, three second cylinder (36) activity respectively is pegged graft in the top of fixing base (34) and the second through-hole of front and back both sides, reserve between the external diameter of this second through-hole inner wall and the flexible post of second (37) and have a surplus space, the one end of the flexible post of three second (37) respectively with the output fixed connection of corresponding second cylinder (36), and the one end that corresponding second cylinder (36) was kept away from to three flexible post of second (37) runs through corresponding second through-hole respectively, the one end fixed connection that corresponding second cylinder (36) was kept away from to three arc splint (38) respectively with corresponding flexible post of second (37), the equal fixed mounting in one side that corresponding flexible post of second (37) was kept away from to three arc splint (38) has the third protection sliding pad.

2. The municipal water supply and drainage pipeline cutting machine according to claim 1, wherein: limiting grooves are formed in the inner walls of the two sides of the sliding groove (30), limiting rods are fixedly mounted on the two sides of the sliding rod (31), and the two limiting rods are slidably mounted in the corresponding limiting grooves respectively.

3. The municipal water supply and drainage pipeline cutting machine according to claim 2, wherein: the bottom of the arc-shaped pressing plate (33) is fixedly provided with a first flexible gasket, and the top of the arc-shaped supporting plate is fixedly provided with a second flexible gasket.

4. The municipal water supply and drainage pipeline cutting machine according to claim 1, wherein: the top of the collection box (6) is fixedly provided with an active carbon filter plate (39) through a screw, and the bottom of the active carbon filter plate (39) is fixedly provided with a filter plate (40).

5. The municipal water supply and drainage pipeline cutting machine according to claim 1, wherein: the fixed cover is equipped with two first bearings on pivot (13), and the outer lane of two first bearings respectively with the inner wall fixed connection of corresponding mounting hole, all fixed mounting has the sealing washer on the inner wall of two round holes, two vertical axis (18) are through corresponding sealing washer respectively with corresponding round hole rotation sealing contact.

6. The municipal water supply and drainage pipeline cutting machine according to claim 1, wherein: bearing seats are fixedly arranged on the inner wall of one side, away from each other, of each of the two dust suction cylinders (17), and one ends, away from each other, of the two transverse shafts (22) are rotatably arranged on the corresponding bearing seats respectively.

Technical Field

The invention relates to the technical field of pipeline cutting, in particular to a municipal water supply and drainage pipeline cutting machine.

Background

Water supply and drainage pipeline engineering is the pipe-line system engineering of carrying and distributing industry water supply and domestic drinking water and collection, carry and discharge industrial waste water, domestic sewage and rainwater, water supply and drainage pipeline engineering is the inseparable part of water supply and drainage system, play the important role to whole water supply and drainage system, municipal water supply and drainage pipeline lays the in-process, often need cut the pipeline, municipal water supply and drainage pipeline cutting machine is the equipment that is used for cutting off municipal water supply and drainage pipeline mainly, can cut off fast the municipal water supply and drainage pipeline that stretches into municipal water supply and drainage pipeline cutting machine inside through high-speed pivoted cutter, be the common equipment of municipal water supply and drainage system construction.

However, in the prior art, when a common municipal water supply and drainage pipeline cutting machine is used, a worker usually presses and fixes a pipeline on a processing table by hands and then performs cutting operation on the pipeline, the operation process is complicated, the effect of pressing and fixing the pipeline by hands is not good, the pipeline is easy to deviate in the cutting process, the cutting quality is reduced, the use or assembly of the pipeline is affected, in the pipeline cutting process, the pipeline cutting machine does not have the function of purifying and dedusting, dust and impurities generated in the cutting process are scattered around the working environment, the environment and air around the working are poor, the environment is polluted, and the health of the worker is injured, in addition, in a pipeline fixer of the existing pipeline cutting device, for example, CN212886372U often adopts a plurality of arc-shaped plates which can be radially clamped to clamp a steel pipe, or a plurality of movable chucks similar to screw drive in CN2128885110U can clamp a circular pipe, but because the arc that a plurality of radial mobile press from both sides were forced generally needs a plurality ofly and arrange on waiting to cut circular pipe outer wall with the even equidistance of circumferencial direction, consequently a plurality of arcs of bottom can be fixed on the base, in pipeline cutting process because the decline of cutting knife can be to producing the extrusion force downwards to the circular pipe in circular pipe cutting process, and along with the deepening of cutting cut, the circular pipe can produce the clamp of cutting the cutting knife tightly, be similar to the saw phenomenon of pressing from both sides among the saw blade cutting process, it can be along with the ejector pin that the cutting process developments rose and rotate the circular pipe in cutting process to set up in the bottom of cutting pipe in the solution that adopts at present, but can cause whole operation process loaded down with trivial details and the ejector pin can't good adaptation to lift circular pipe in circular pipe rotation process like this.

To this end, we propose a municipal water supply and drainage pipeline cutting machine to solve the above problems, so as to realize the lifting of the circular pipe while rotating the circular pipe during the cutting process.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a municipal water supply and drainage pipeline cutting machine, which solves the problems that when the existing municipal water supply and drainage pipeline cutting machine is used, a worker usually presses and fixes a pipeline on a processing table by hands and then cuts the pipeline, the operation process is complicated, the effect of pressing and fixing the pipeline by hands is not good, the pipeline is easy to deviate in the cutting process, the cutting quality is reduced, the use or assembly of the pipeline is influenced, in the pipeline cutting process, the pipeline cutting machine does not have the function of purifying and dedusting, dust and impurities generated in the cutting process are scattered around the working environment, the environment and air around the working environment are poor, the environment is polluted, and the body health of the worker is injured.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a municipal water supply and drainage pipeline cutting machine comprises a processing table, wherein a clamping mechanism and an arc-shaped supporting plate are fixedly mounted at the top of the processing table, four stand columns are fixedly mounted at the top of the processing table, the four stand columns are arranged in pairwise symmetry, the top ends of the four stand columns are fixedly provided with a same transverse plate, a collecting box and a first air cylinder are fixedly mounted at the top of the transverse plate, the top of the collecting box is of an opening structure, a first telescopic column is fixedly mounted at the output shaft end of the first air cylinder, a first through hole is formed in the top of the transverse plate, the bottom end of the first telescopic column penetrates through the first through hole and is fixedly provided with a mounting plate, a motor base and a protective cover are fixedly mounted at the bottom of the mounting plate, the bottom of the protective cover is of an opening structure, a motor is fixedly mounted at the bottom of the motor base, a rotating shaft is arranged in the protective cover, a cutter is fixedly sleeved on the rotating shaft, the bottom of the cutter extends out of the protective cover, mounting holes are formed in the inner walls at two sides of the protective cover, two ends of the rotating shaft respectively penetrate through corresponding mounting holes, one end of the rotating shaft is fixedly connected with an output shaft end of a motor, two first bevel gears are fixedly sleeved on the rotating shaft, the two first bevel gears are symmetrically arranged at two sides of the protective cover, a fixed seat and a dust suction cylinder are fixedly arranged at two sides of the protective cover, the two fixed seats are respectively positioned below the corresponding dust suction cylinders, one sides, far away from each other, of the two dust suction cylinders are of a closed structure, one ends, close to each other, of the two dust suction cylinders extend into the protective cover, vertical shafts are rotatably arranged on the two fixed seats, second bevel gears are fixedly arranged at the bottom ends of the two vertical shafts, the two second bevel gears are respectively meshed with the corresponding first bevel gears, circular holes are respectively formed in the inner walls of the bottoms of the two dust suction cylinders, the top ends of the two vertical shafts respectively penetrate through the corresponding circular holes, and third bevel gears are fixedly arranged at the top ends of the two vertical shafts, partition plates are fixedly arranged in the two dust suction cylinders, transverse shafts are rotatably arranged on the two partition plates, fourth bevel gears are fixedly sleeved on the two transverse shafts, the two third bevel gears are respectively meshed with the corresponding fourth bevel gears, dust suction fan blades are fixedly arranged at the ends, close to each other, of the two transverse shafts, first dust conveying pipes which are obliquely arranged are fixedly arranged at the tops of the two dust suction cylinders, the bottom ends of the two first dust conveying pipes extend into the corresponding dust suction cylinders respectively, second dust conveying pipes are fixedly arranged at the tops of the mounting plates, the top ends of the two first dust conveying pipes penetrate through the mounting plates and are fixedly connected with the bottoms of the second dust conveying pipes, the two first dust conveying pipes are communicated with the second dust conveying pipes, one ends of the second dust conveying pipes are fixedly connected with hoses, a dust exhaust pipe is fixedly arranged at one side, close to the first air cylinders, one end of the dust exhaust pipe extends into the collection box, the bottom end of the dust exhaust pipe penetrates through the transverse plate and is fixedly connected with one end of the hose, which is far away from the second dust conveying pipe;

a fixed shaft is fixedly installed on one side of the installation plate, a sliding groove is formed in the bottom end of the fixed shaft, a sliding rod is slidably installed in the sliding groove, a spring is fixedly installed at the top end of the sliding rod, the top end of the spring is fixedly connected with the inner wall of the top of the sliding groove, the bottom end of the sliding rod extends out of the sliding groove and is fixedly provided with an arc-shaped pressing plate, the arc-shaped pressing plate is located right above the arc-shaped support plate, flexible gaskets are arranged on the mutually close sides of the arc-shaped pressing plate and the arc-shaped support plate, and a plurality of spherical balls are embedded in the flexible gaskets;

the clamping mechanism comprises a fixed seat, a circular clamping through hole, three second cylinders, three second telescopic columns and three arc-shaped clamping plates, the bottom of the fixed seat is fixedly connected with the top of the processing table, the clamping through hole is formed in one side of the fixed seat, pulleys are arranged on the two second cylinder rod body shells on the lower sides,

arc grooves are respectively arranged on two sides of the fixed seat body at the top of the processing table, the two arc grooves are positioned on the same arc, the circle center of the same arc is positioned on the central axis of the circular clamping through hole, the two arc grooves are positioned on the rotating path of the second air cylinder, pulleys of two second air cylinder bodies positioned on lower sides and far away from the circular clamping through hole end leak out of the bottom of the fixed seat body and are respectively supported in the two arc grooves in a sliding manner, and one arc protrusion is arranged in one arc groove;

the top inner wall of centre gripping through-hole and all seted up the second through-hole on the both sides inner wall around with, three second cylinder is movable respectively and pegs graft in the top of fixing base and the second through-hole of both sides around with, reserve between the external diameter of this second through-hole inner wall and the flexible post of second has a surplus space, the one end of the flexible post of three second respectively with the output fixed connection of corresponding second cylinder, and the flexible post of three second keeps away from the one end of corresponding second cylinder and runs through corresponding second through-hole respectively, the one end fixed connection of corresponding second cylinder is kept away from with the flexible post of corresponding second respectively to three arc splint, the equal fixed mounting in one side that corresponding flexible post of second was kept away from to three arc splint has the third smooth pad of prevention.

The limiting grooves are formed in the inner walls of the two sides of the sliding groove, limiting rods are fixedly mounted on the two sides of the sliding rod, and the two limiting rods are slidably mounted in the corresponding limiting grooves respectively.

The bottom of the arc-shaped pressing plate is fixedly provided with a first flexible gasket, and the top of the arc-shaped supporting plate is fixedly provided with a second flexible gasket.

The top of the collecting box is fixedly provided with an active carbon filter plate through a screw, and the bottom of the active carbon filter plate is fixedly provided with a filter plate.

The fixed cover is equipped with two first bearings in the pivot, the outer lane of two first bearings respectively with the inner wall fixed connection of corresponding mounting hole, all fixed mounting has the sealing washer on the inner wall of two round holes, two vertical axes are through corresponding sealing washer respectively with corresponding round hole rotary seal contact.

Bearing seats are fixedly arranged on the inner wall of one side, far away from each other, of the two dust suction cylinders, and one ends, far away from each other, of the two transverse shafts are rotatably arranged on the corresponding bearing seats respectively.

(III) advantageous effects

The invention provides a municipal water supply and drainage pipeline cutting machine. The method has the following beneficial effects:

(1) according to the invention, a bottom lifting structure is not required, and the circular pipe is lifted while rotating in the cutting process through the uniquely-arranged special-shaped double-sliding-groove design, so that the phenomenon of clamping and sawing is effectively reduced, and the cutting efficiency is improved.

(2) This municipal administration water supply and drainage pipeline cutting machine runs through the centre gripping through-hole and places in the arc backup pad through the one end to water supply and drainage pipeline, through starting three second cylinder work for the flexible post of three second drives corresponding arc splint respectively and removes, and the centre gripping cooperation that utilizes three arc splint can stabilize the centre gripping to the pipeline, and is applicable to the pipeline to different diameters through the position of adjusting three arc splint and stabilizes the centre gripping.

(3) The municipal water supply and drainage pipeline cutting machine comprises a motor, wherein the motor drives a rotating shaft, a cutter and two first bevel gears to rotate, a first cylinder is started to work again, so that a first telescopic column drives a mounting plate, the motor, a protective cover, a fixed shaft, a sliding rod and an arc-shaped pressing plate to vertically move downwards, the position of the arc-shaped pressing plate does not change after the arc-shaped pressing plate moves downwards to be in contact with the top of a pipeline, the sliding rod slides in a sliding groove, a spring is gradually subjected to compression deformation to generate elastic force, the pipeline can be cut and processed along with the continuous downward movement and rotation of the cutter, the compression force applied by the spring is increasingly large in the pipeline cutting process, the downward reaction force applied by the arc-shaped pressing plate to the vertical axis of the pipeline is increasingly large, the downward reaction force applied by the arc-shaped pressing plate to the vertical axis of the pipeline can be secondarily fixed, and the situation that the pipeline is deviated during cutting can be effectively avoided, and the vibration force generated during the cutting of the pipeline can be effectively buffered and damped by utilizing the elastic action generated by the spring, so that the cutting quality of the pipeline is improved.

(4) This municipal administration water supply and drainage pipeline cutting machine, through utilizing two first bevel gears to drive corresponding second bevel gears, vertical axis and third bevel gear rotate, two third bevel gears drive corresponding fourth bevel gears, cross axle and dust absorption flabellum rotate, utilize the rotation of two dust absorption flabellums, make the dust impurity that produces in the cutting process inhaled in two dust absorption section of thick bamboos, make dust impurity discharge into the collecting box at last and carry out temporary collection, thereby in the pipeline cutting process, can carry out effectual dust removal purification, effectual environment and the air quality around the improvement work, great reduction the pollution to the environment, be difficult for causing the injury to staff's healthy, keep good operational environment.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 3;

fig. 5 is a side cross-sectional structural view of the clamping mechanism.

In the figure: 1. a processing table; 2. a clamping mechanism; 3. an arc-shaped support plate; 4. a column; 5. a transverse plate; 6. a collection box; 7. a first cylinder; 8. a first telescopic column; 9. mounting a plate; 10. a motor base; 11. a protective cover; 12. a motor; 13. a rotating shaft; 14. a cutter; 15. a first bevel gear; 16. a fixed seat; 17. a dust suction cylinder; 18. a vertical axis; 19. a second bevel gear; 20. a third bevel gear; 21. a partition plate; 22. a horizontal axis; 23. a fourth bevel gear; 24. dust-absorbing fan blades; 25. a first dust conveying pipe; 26. a second dust conveying pipe; 27. a hose; 28. a dust exhaust pipe; 29. a fixed shaft; 30. a chute; 31. a slide bar; 32. a spring; 33. an arc-shaped pressing plate; 34. a fixed seat; 35. clamping the through hole; 36. a second cylinder; 37. a second telescopic column; 38. an arc-shaped splint; 39. an active carbon filter plate; 40. a filter plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the present invention provides a technical solution: a municipal water supply and drainage pipeline cutting machine comprises a processing table 1, wherein a clamping mechanism 2 and an arc-shaped supporting plate 3 are fixedly mounted at the top of the processing table 1, four upright posts 4 are fixedly mounted at the top of the processing table 1, the four upright posts 4 are symmetrically arranged in pairs, the top ends of the four upright posts 4 are fixedly mounted with a same transverse plate 5, a collecting box 6 and a first air cylinder 7 are fixedly mounted at the top of the transverse plate 5, the top of the collecting box 6 is of an open structure, a first telescopic column 8 is fixedly mounted at the output shaft end of the first air cylinder 7, a first through hole is formed at the top of the transverse plate 5, a mounting plate 9 is fixedly mounted at the bottom end of the first telescopic column 8 through the first through hole, a motor base 10 and a protective cover 11 are fixedly mounted at the bottom of the mounting plate 9, the bottom of the protective cover 11 is of an open structure, a motor 12 is fixedly mounted at the bottom of the motor base 10, and a rotating shaft 13 is arranged in the protective cover 11, a cutter 14 is fixedly sleeved on a rotating shaft 13, the bottom of the cutter 14 extends out of the protective cover 11, mounting holes are respectively formed in the inner walls of two sides of the protective cover 11, two ends of the rotating shaft 13 respectively penetrate through the corresponding mounting holes, one end of the rotating shaft 13 is fixedly connected with the output shaft of the motor 12, two first bevel gears 15 are fixedly sleeved on the rotating shaft 13, the two first bevel gears 15 are symmetrically arranged on two sides of the protective cover 11, a fixed seat 16 and a dust suction tube 17 are respectively fixedly arranged on two sides of the protective cover 11, the two fixed seats 16 are respectively positioned below the corresponding dust suction tube 17, one sides of the two dust suction tubes 17 far away from each other are both of a closed structure, one ends of the two dust suction tubes 17 close to each other extend into the protective cover 11, vertical shafts 18 are respectively rotatably arranged on the two fixed seats 16, second bevel gears 19 are respectively fixedly arranged at the bottom ends of the two vertical shafts 18, and the two second bevel gears 19 are respectively engaged with the corresponding first bevel gears 15, the inner walls of the bottoms of the two dust cylinders 17 are respectively provided with a round hole, the top ends of the two vertical shafts 18 respectively penetrate through the corresponding round holes, the top ends of the two vertical shafts 18 are respectively and fixedly provided with a third bevel gear 20, the two dust cylinders 17 are respectively and fixedly provided with a partition plate 21, the two partition plates 21 are respectively and rotatably provided with a transverse shaft 22, the two transverse shafts 22 are respectively and fixedly sleeved with a fourth bevel gear 23, the two third bevel gears 20 are respectively meshed with the corresponding fourth bevel gears 23, the mutually close ends of the two transverse shafts 22 are respectively and fixedly provided with dust collection fan blades 24, the tops of the two dust cylinders 17 are respectively and fixedly provided with first dust conveying pipes 25 which are obliquely arranged, the bottom ends of the two first dust conveying pipes 25 respectively extend into the corresponding dust cylinders 17, the top of the mounting plate 9 is fixedly provided with a second dust conveying pipe 26, the top ends of the two first dust conveying pipes 25 respectively penetrate through the mounting plate 9 and are respectively and fixedly connected with the bottoms of the second dust conveying pipes 26, the two first dust conveying pipes 25 are communicated with the second dust conveying pipe 26, one end of the second dust conveying pipe 26 is fixedly connected with a hose 27, one side, close to the first air cylinder 7, of the collection box 6 is fixedly provided with a dust exhaust pipe 28, one end of the dust exhaust pipe 28 extends into the collection box 6, and the bottom end of the dust exhaust pipe 28 penetrates through the transverse plate 5 and is fixedly connected with one end, far away from the second dust conveying pipe 26, of the hose 27;

a fixed shaft 29 is fixedly installed on one side of the installation plate 9, a sliding chute 30 is formed in the bottom end of the fixed shaft 29, a sliding rod 31 is slidably installed in the sliding chute 30, a spring 32 is fixedly installed at the top end of the sliding rod 31, the top end of the spring 32 is fixedly connected with the inner wall of the top of the sliding chute 30, the bottom end of the sliding rod 31 extends out of the sliding chute 30 and is fixedly provided with an arc-shaped pressing plate 33, the arc-shaped pressing plate 33 is located right above the arc-shaped support plate 3, flexible gaskets are arranged on the mutually close sides of the arc-shaped pressing plate 33 and the arc-shaped support plate 3, and a plurality of spherical balls are embedded in the flexible gaskets;

the clamping mechanism 2 comprises a fixed seat 34, a circular clamping through hole 35, three second air cylinders 36, three second telescopic columns 37 and three arc-shaped clamping plates 38, the bottom of the fixed seat 34 is fixedly connected with the top of the machining table 1, the clamping through hole 35 is formed in one side of the fixed seat 34, and pulleys are arranged on the rod body shells of the two second air cylinders 36 on the lower side;

arc-shaped grooves are respectively arranged on two sides of the base body of the fixed seat 34 at the top of the processing table 1, the two arc-shaped grooves are positioned on the same arc, the circle center of the same arc is positioned on the central axis of the circular clamping through hole 35, the two arc-shaped grooves are both positioned on the rotating path of the second air cylinder 36, pulleys of the cylinder bodies of the two second air cylinders 36 positioned on the lower side, which are far away from the circular clamping through hole 35, are externally leaked at the bottom of the base body of the fixed seat 34 and are respectively supported in the two arc-shaped grooves in a sliding manner, and one arc-shaped protrusion is arranged in one arc-shaped groove;

the second through-hole has all been seted up on the top inner wall of centre gripping through-hole 35 and the front and back both sides inner wall, three second cylinder 36 activity respectively is pegged graft in the top of fixing base 34 and the second through-hole of front and back both sides, reserve between this second through-hole inner wall and the external diameter of the flexible post 37 of second and has a surplus space, the one end of the flexible post 37 of three second respectively with the output fixed connection of corresponding second cylinder 36, and the corresponding second through-hole is run through respectively to the one end that corresponding second cylinder 36 was kept away from to three flexible post 37 of second, three arc splint 38 respectively with the flexible post 37 one end fixed connection that keeps away from corresponding second cylinder 36 of corresponding second, three arc splint 38 keep away from the equal fixed mounting of one side of the flexible post 37 of corresponding second and have the smooth pad of third prevention.

In this embodiment, a first flexible gasket is fixedly mounted at the bottom of the arc-shaped pressing plate 33, and a second flexible gasket is fixedly mounted at the top of the arc-shaped supporting plate.

In this embodiment, the top of the collection box 6 is fixedly provided with an activated carbon filter plate 39 by screws, and the bottom of the activated carbon filter plate 39 is fixedly provided with a filter plate 40.

In this embodiment, the fixed cover is equipped with two first bearings on the pivot 13, and the outer lane of two first bearings respectively with the inner wall fixed connection of corresponding mounting hole, all fixed mounting has the sealing washer on the inner wall of two round holes, two vertical axis 18 respectively with corresponding round hole rotation sealing contact through corresponding sealing washer.

In this embodiment, the inner walls of the two dust suction cylinders 17 away from each other are fixedly provided with bearing seats, and the ends of the two cross shafts 22 away from each other are rotatably mounted on the corresponding bearing seats respectively.

In this embodiment, an external power line and a control switch are fixedly installed on the top of the transverse plate 5, the first cylinder 7, the motor 12, the three second cylinders 36, the external power line and the control switch are electrically connected through a wire to form a loop, the control switch can control the start-stop and reset operations of the first cylinder 7 and the three second cylinders 36 respectively, and can also control the start-stop operation of the motor 12, one end of a water supply and drainage pipeline penetrates through the clamping through hole 35 and is placed on the ball on the arc-shaped support plate 3, so that the pipeline is located between the three arc-shaped clamping plates 38, the first flexible gasket at the bottom of the arc-shaped clamping plate 33 is in contact with the top of the pipeline or is located above the pipeline, the cutter 14 is located right above the position of the pipeline to be cut, then the power is switched on, the three second cylinders 36 are started to operate, so that the three second telescopic columns 37 respectively drive the corresponding arc-shaped clamping plates 38 to move, the three arc-shaped clamping plates 38 move towards the side close to each other, when the third anti-sliding pads on the three arc-shaped clamping plates 38 are in clamping contact with the outer wall of the pipeline, the three second cylinders 36 stop working, namely, the pipeline is firmly clamped and fixed on the clamping mechanism 2, and the pipeline with different diameters is firmly clamped by adjusting the positions of the three arc-shaped clamping plates 38, the motor 12 drives the rotating shaft 13, the cutter 14 and the two first bevel gears 15 to rotate by starting the motor 12 to work, then the first cylinder 7 is started to work, so that the first telescopic column 8 drives the mounting plate 9, the motor 12, the protective cover 11, the fixed shaft 29, the sliding rod 31 and the arc-shaped pressing plate 33 to vertically move downwards, after the arc-shaped pressing plate 33 moves downwards to contact with the top of the pipeline, the position of the arc-shaped pressing plate 33 is not changed, the sliding rod 31 slides in the sliding chute 30, and the spring 32 gradually undergoes compression deformation to generate elastic force, when the cutter 14 moves downwards to contact with the pipeline, the pipeline can be cut and processed along with the continuous downward movement and rotation of the cutter, in the process of cutting the pipeline, the compression force applied to the spring 32 is increasingly greater, the downward reaction force of the vertical shaft applied to the pipeline by the arc-shaped pressing plate 33 is increasingly greater, so that the pipeline can be secondarily fixed by utilizing the downward reaction force of the vertical shaft applied to the pipeline by the arc-shaped pressing plate 33, the pipeline can be effectively prevented from being deviated during cutting, the vibration force generated during cutting the pipeline can be effectively buffered and damped by utilizing the elastic action generated by the spring 32, the cutting quality of the pipeline is improved, two first bevel gears 15 are utilized to drive corresponding second bevel gears 19, vertical shafts 18 and third bevel gears 20 to rotate, and two third bevel gears 20 drive corresponding fourth bevel gears 23, transverse shafts 22 and dust suction fan blades 24 to rotate, the rotation of the two dust suction fan blades 24 is utilized to suck the dust impurities generated in the cutting process into the two dust suction cylinders 17, then the dust impurities sequentially pass through the two first dust conveying pipes 25, the second dust conveying pipe 26, the hose 27 and the dust exhaust pipe 28, so that the dust impurities are discharged into the collection box 6, the large-particle dust impurities are intercepted and filtered by the filter plate 40, the large-particle dust impurities are stored in the collection box 6, the peculiar smell generated by the cutting of fine particles is adsorbed and purified by the activated carbon filter plate 39, the purified air is discharged out of the collection box 6, and therefore, in the pipeline cutting process, the dust can be effectively removed and purified, the environment and the air quality around the work are effectively improved, the pollution to the environment is greatly reduced, the harm to the health of workers is not easily caused, a good work environment is kept, and after the pipeline cutting is completed, stopping the work of the motor 12, starting the reset work of the first cylinder 7, making the first telescopic column 8 drive the mounting plate 9, the motor 12, the protective cover 11, the fixed shaft 29, the sliding rod 31 and the arc-shaped pressing plate 33 to vertically move upwards and return to the original position, under the action of the elastic force of the spring 32, the arc-shaped pressing plate 33 returns to the original position, and then starting the three second cylinders 36 to work, making the three second telescopic columns 37 respectively drive the corresponding arc-shaped clamping plates 38 to move towards one sides close to each other, and contacting and fixing the pipeline, so as to take down the pipeline after cutting, and meanwhile, the content not described in detail in the specification belongs to the prior art known by the professional in the field.

To sum up, the municipal water supply and drainage pipeline cutting machine has the advantages that one end of a water supply and drainage pipeline penetrates through the clamping through hole 35 and is placed on the arc-shaped supporting plate 3, the three second telescopic columns 37 respectively drive the corresponding arc-shaped clamping plates 38 to move by starting the three second cylinders 36 to work, the pipeline can be stably clamped by utilizing the clamping cooperation of the three arc-shaped clamping plates 38, the positions of the three arc-shaped clamping plates 38 are adjusted to be suitable for stably clamping pipelines with different diameters, the motor 12 drives the rotating shaft 13, the cutter 14 and the two first bevel gears 15 to rotate by starting the motor 12 to work, then the first cylinder 7 is started to work, the first telescopic column 8 drives the mounting plate 9, the motor 12, the protective cover 11, the fixed shaft 29, the sliding rod 31 and the arc-shaped pressing plate 33 to vertically move downwards, and the positions of the arc-shaped pressing plate 33 are not changed after the arc-shaped pressing plate 33 is moved downwards to be contacted with the top of the pipeline, the sliding rod 31 slides in the sliding groove 30, the spring 32 gradually generates elastic force by compression deformation, the pipeline can be cut and processed along with the continuous downward movement and rotation of the cutter, in the process of cutting the pipeline, the compression force applied to the spring 32 is larger and larger, the downward reaction force of the vertical shaft applied to the pipeline by the arc-shaped pressing plate 33 is larger and larger, the pipeline can be secondarily fixed by utilizing the downward reaction force of the vertical shaft applied to the pipeline by the arc-shaped pressing plate 33, the pipeline can be effectively prevented from being deviated during cutting, the vibration force generated during cutting the pipeline can be effectively buffered and damped by utilizing the elastic force generated by the spring 32, the cutting quality of the pipeline is improved, and the two first bevel gears 15 are utilized to drive the corresponding second bevel gears 19, the vertical shafts 18 and the third bevel gears 20 to rotate, and the two third bevel gears 20 drive the corresponding fourth bevel gears 23, The cross shaft 22 and the dust suction fan blades 24 rotate, and the dust impurities generated in the cutting process are sucked into the two dust suction cylinders 17 by utilizing the rotation of the two dust suction fan blades 24, and finally the dust impurities are discharged into the collection box 6 to be temporarily collected, so that the dust removal and purification can be effectively carried out in the pipeline cutting process, the environment and the air quality around the work can be effectively improved, the pollution to the environment is greatly reduced, the harm to the health of workers is not easily caused, and a good working environment is kept. And can carry out effectual dust removal purification to the dust impurity that the cutting pipeline in-process produced, environment and air quality around the effectual improvement work, great reduction to the pollution of environment, be difficult for causing the injury to staff's healthy.

Furthermore, the invention is more important: need not to set up the bottom and lift the structure in cutting process, the two sliding tray designs of dysmorphism through unique setting make and accomplish the lifting to the circular duct when cutting process is rotatory to the circular duct, and the effectual saw phenomenon that presss from both sides that alleviates promotes cutting efficiency, and concrete operation process is as follows: before the cutter 14 contacts the circular pipe with the cut function in the cutting process, the pulleys at the end parts of the two second air cylinders 36 at the lower side are kept positioned in the two arc-shaped grooves, the two arc-shaped grooves are symmetrical about the circular pipe, so the pipeline is stably supported in the process, after the cutter 14 is deeply inserted into the circular pipe with the cut function, the shell of the second air cylinder 36 at the top part is held by hands, so the other two second air cylinders 36 and the circular pipe are driven to rotate for a certain angle, the pulleys at the end parts of the two second air cylinders 36 slide stably in the two arc-shaped grooves, the other end of the circular pipe is supported by rolling on the spherical ball bearings on the arc-shaped pressure plate 33, so that the circular pipe can rotate stably in the cutting process, the phenomenon of clamping and sawing is partially relieved, after the certain angle is rotated, an arc-shaped bulge is arranged in one of the arc-shaped grooves, so that the second air cylinder 36 at the side provided with the arc-shaped bulge is slightly jacked, thereby enabling the circular tube to be provided with a jack-up, thereby further mitigating partial entrapment sawing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.