Cutting device for municipal engineering construction

By combining the support mechanism and the rotating mechanism, the problem of clamping, fixing and cutting stability of pipes of different diameters in municipal engineering construction is solved. It realizes stable clamping and cutting of pipes of different diameters and avoids breakage caused by excessive force on the middle of the pipe.

CN223997439UActive Publication Date: 2026-03-17ARAL CITY GREEN VIEW MUNICIPAL CONSTRUCTION SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The cutting equipment used in municipal engineering construction is difficult to adapt to municipal pipelines of different diameters, resulting in poor clamping and fixation, and the pipeline is prone to breakage due to excessive force when cutting the middle section.

Method used

By setting up a support mechanism and a rotating mechanism, and using the combined movement of screw, screw cylinder, spring and clamping plate, pipe fittings of different diameters can be clamped and fixed. The motor drives the gear and gear ring to rotate the support cylinder, reducing the stress on the middle of the pipe and preventing breakage.

Benefits of technology

It achieves stable clamping and fixing of pipes of different diameters, reduces the stress on the middle of the pipe during the cutting process, avoids the overall breakage of the pipe, and improves cutting efficiency and stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223997439U_ABST
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Abstract

The utility model belongs to the technical field of cutting devices, and particularly relates to a municipal engineering construction cutting device which comprises a bottom plate, a supporting mechanism is arranged on the bottom plate, a supporting plate is fixedly connected to the upper end of the bottom plate, a rotating mechanism is arranged on the supporting plate, and a support is fixedly connected to the upper end of the bottom plate. An air cylinder is fixedly installed at the upper end of the support, an air cylinder rod of the air cylinder penetrates through the support and is slidably connected with the support, a hanging plate is fixedly connected to the lower end of the air cylinder rod of the air cylinder, and a saw wheel is arranged at the lower end of the hanging plate. According to the scheme, a two-way screw and a connecting plate are rotated to do threaded motion, then a square rod drives a clamping plate to move, the device can clamp and fix pipe fittings with different diameters, meanwhile, a motor drives a gear to rotate, then a gear ring drives a supporting cylinder to rotate, a pipeline is made to rotate, and then the large-diameter pipeline is convenient to cut.
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Description

Technical Field

[0001] This solution belongs to the field of cutting device technology, specifically involving a cutting device for municipal engineering construction. Background Technology

[0002] Utility model patent CN214557808U discloses a pipe cutting device for municipal engineering construction, relating to the technical field of municipal engineering construction equipment. The device includes a support box and a cutting blade. A gear is installed inside the support box, and the gear is fixedly connected to a drive mechanism. Rack plates are symmetrically arranged on the upper and lower sides of the gear, meshing with the gear and slidingly connected to the inner wall of the support box. Supports are symmetrically fixedly installed on the left and right sides of the support box, and a frame is installed on the upper surface of the support. Guide rods are symmetrically fixedly installed between the frames, and telescopic springs are installed on the surface of the guide rods. The rack plates on the upper and lower sides drive the left and right support rods to move horizontally left and right via pull ropes, adjusting the distance between the left and right clamps to facilitate fixing pipes of different lengths. A drive motor drives the cutting blade to rotate, cutting the fixed pipe below, effectively improving cutting efficiency and stability during cutting.

[0003] However, the device has certain shortcomings. It is not convenient to clamp and fix municipal pipes of different diameters, and its applicability is low. At the same time, the force during the cutting process in the middle of the pipe will increase the internal shear force of the pipe, which will make the pipe more prone to breakage at the weakest point. Utility Model Content

[0004] The purpose of this solution is to provide a cutting device for municipal engineering construction, in order to solve the problems that the device is not convenient for clamping and fixing municipal pipes of different diameters, has low applicability, and that the force applied during the cutting process in the middle of the pipe will lead to an increase in the internal shear force of the pipe, which will make the pipe more prone to breakage at the weakest point.

[0005] To achieve the above objectives, this solution provides a cutting device for municipal engineering construction, including a base plate, a support mechanism on the base plate, a support plate fixedly connected to the upper end of the base plate, a rotating mechanism on the support plate, a bracket fixedly connected to the upper end of the base plate, a cylinder fixedly installed at the upper end of the bracket, the cylinder rod of the cylinder passing through the bracket and slidably connected to the bracket, a hanging plate fixedly connected to the lower end of the cylinder rod, and a saw wheel installed at the lower end of the hanging plate.

[0006] The principle of this solution is as follows: During use, the pipe is passed through the support cylinder. The double-ended screw is manually rotated, causing the connecting plate to move in a threaded motion. This causes the connecting plate to slide the square rod into the support cylinder. The square rod then moves the clamping plate, bringing it into contact with the pipe. This allows the device to clamp and fix pipes of different diameters. Manually rotating the screw cylinder causes the screw to move in a threaded motion, moving the screw upwards. The screw compresses the spring, causing the spring to push against the support plate, bringing the support plate into contact with the pipe and providing support. The device achieves this by rotating the screw cylinder and the threaded motion of the screw. This causes the spring to elastically push against the support plate, which in turn causes the support roller to move upward and contact the pipe, supporting the pipe and preventing excessive force on the middle of the pipe during cutting, which could lead to the pipe breaking as a whole. Then, the motor is started, and the motor drives the gear to rotate, which in turn drives the gear ring to rotate, which in turn drives the support cylinder to rotate, thus rotating the pipe. This makes it easier to cut large-diameter pipes. Then, the saw wheel is started, and the cylinder is activated. The cylinder drives the cylinder rod to extend, which in turn moves the hanging plate, which in turn moves the saw wheel downward, allowing the saw wheel to cut the pipe as it rotates.

[0007] The technical effect of this solution is that by rotating the screw and the screw rod to make a threaded motion, the spring elastically pushes the support plate, which in turn causes the support roller to move upward and contact the pipe, thus supporting the pipe and preventing excessive force on the middle of the pipe during the cutting process, which could lead to the overall breakage of the pipe.

[0008] By rotating the bidirectional screw and connecting plate to make threaded motion, the square rod drives the clamping plate to move, allowing the device to clamp and fix pipes of different diameters. At the same time, the motor drives the gear to rotate, which in turn drives the support cylinder to rotate, thus rotating the pipe and making it easier to cut large-diameter pipes.

[0009] Furthermore, the support mechanism includes a sleeve, with the upper end of the base plate fixedly connected to the sleeve. A screw cylinder is mounted inside the sleeve via a bearing, and a screw rod is threadedly connected inside the screw cylinder. A sliding cylinder is slidably connected to the outer side of the screw rod, and a support plate is fixedly connected to the upper end of the sliding cylinder. A spring is installed inside the sliding cylinder, and a support roller is installed at the upper end of the support plate. By rotating the screw cylinder and screw rod to perform threaded movement, the spring elastically pushes against the support plate, causing the support roller to move upward and contact the pipe, supporting the pipe and preventing excessive force on the middle of the pipe during cutting, which could lead to the entire pipe breaking.

[0010] Furthermore, a sliding pin is fixedly connected to the surface of the screw, and the sliding pin is slidably connected to the slide cylinder. By setting the sliding pin, relative rotation between the screw and the slide cylinder is prevented.

[0011] Furthermore, one end of the spring is fixedly connected to the screw, and the other end of the spring is fixedly connected to the support plate. The spring provides elastic support to the support plate.

[0012] Furthermore, a guide rod is fixedly connected to the lower end of the pallet, and a guide cylinder is fixedly connected to the upper end of the base plate. The guide cylinder and the guide rod are slidably connected. By setting the guide rod and the guide cylinder in cooperation, the movement of the pallet is guided.

[0013] Furthermore, the rotating mechanism includes a support cylinder. The support cylinder is mounted inside the support plate via bearings. A gear ring is fixedly connected to the outer side of the support cylinder. A motor is fixedly mounted on the surface of the support plate. The output end of the motor passes through the support plate and is rotatably connected to it. A gear is fixedly connected to the left end of the motor's output end, and the gear meshes with the gear ring. A square rod is slidably connected inside the support cylinder. A clamping plate is fixedly connected to one end of the square rod, and a connecting plate is fixedly connected to the other end. A double-ended screw is threadedly connected inside the connecting plate. By rotating the double-ended screw and the connecting plate, the square rod moves the clamping plate, allowing the device to clamp and fix pipes of different diameters. Simultaneously, the motor drives the gear to rotate, causing the gear ring to rotate the support cylinder, which in turn rotates the pipe, facilitating the cutting of large-diameter pipes.

[0014] Furthermore, a limiting plate is fixedly connected to the surface of the support cylinder, and the limiting plate is slidably connected to the bidirectional screw. The limiting plate prevents the bidirectional screw from moving out of control. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of a cutting device for municipal engineering construction according to an embodiment of the present invention;

[0016] Figure 2 This invention relates to a cutting device for municipal engineering construction. Figure 1 The left view;

[0017] Figure 3 This invention relates to a cutting device for municipal engineering construction. Figure 1 Partial structural 3D view;

[0018] Figure 4 This invention relates to a cutting device for municipal engineering construction. Figure 1 A three-dimensional view of the support cylinder.

[0019] The following detailed explanation illustrates the specific implementation methods:

[0020] The reference numerals in the accompanying drawings of the instruction manual include: 1. Base plate; 2. Support mechanism; 3. Support plate; 4. Rotating mechanism; 5. Bracket; 6. Cylinder; 7. Hanging plate; 8. Saw wheel; 21. Sleeve; 22. Screw barrel; 23. Screw rod; 24. Slide cylinder; 25. Sliding pin; 26. Support plate; 27. Spring; 28. Support roller; 29. ​​Guide rod; 210. Guide cylinder; 41. Support cylinder; 42. Gear ring; 43. Motor; 44. Gear; 45. Square rod; 46. Clamping plate; 47. Connecting plate; 48. Bidirectional screw rod; 49. Limiting plate. Detailed Implementation

[0021] The implementation examples are basically as follows Figure 1 , Figure 2 As shown, this embodiment provides a cutting device for municipal engineering construction, including a base plate 1, a support mechanism 2 on the base plate 1, a support plate 3 fixedly connected to the upper end of the base plate 1, a rotating mechanism 4 on the support plate 3, a bracket 5 fixedly connected to the upper end of the base plate 1, a cylinder 6 fixedly installed on the upper end of the bracket 5, the cylinder rod of the cylinder 6 passing through the bracket 5 and slidably connected to the bracket 5, a hanging plate 7 fixedly connected to the lower end of the cylinder rod of the cylinder 6, and a saw wheel 8 provided at the lower end of the hanging plate 7.

[0022] like Figure 1 , Figure 3 As shown, the support mechanism 2 includes a sleeve 21. The upper end of the base plate 1 is fixedly connected to the sleeve 21. A screw 22 is installed inside the sleeve 21 via a bearing. A screw 23 is threadedly connected inside the screw 22. A slide cylinder 24 is slidably connected to the outer side of the screw 23. A sliding pin 25 is fixedly connected to the surface of the screw 23. The sliding pin 25 and the slide cylinder 24 are slidably connected. By setting the sliding pin 25, relative rotation between the screw 23 and the slide cylinder 24 is prevented. A support plate 26 is fixedly connected to the upper end of the slide cylinder 24. A spring 27 is installed inside the slide cylinder 24. One end of the spring 27 is fixedly connected to the screw 23, and the other end of the spring 27 is fixedly connected to the support plate 26. 6. Fixed connection: A spring 27 provides elastic support for the support plate 26. A support roller 28 is provided at the upper end of the support plate 26, and a guide rod 29 is fixedly connected to the lower end of the support plate 26. A guide cylinder 210 is fixedly connected to the upper end of the base plate 1. The guide cylinder 210 and the guide rod 29 are slidably connected. By setting the guide rod 29 and the guide cylinder 210 to cooperate, the movement of the support plate 26 is guided. By rotating the screw cylinder 22 and the screw 23 to make threaded movement, the spring 27 elastically pushes the support plate 26, thereby causing the support roller 28 to move upward and contact the pipe, supporting the pipe and avoiding excessive force on the middle of the pipe during the cutting process, which could cause the entire pipe to break.

[0023] like Figure 1 , Figure 2 , Figure 4As shown, the rotating mechanism 4 includes a support cylinder 41. The support cylinder 41 is mounted inside the support plate 3 via bearings. A gear ring 42 is fixedly connected to the outer side of the support cylinder 41. A motor 43 is fixedly mounted on the surface of the support plate 3. The output end of the motor 43 passes through the support plate 3 and is rotatably connected to the support plate 3. A gear 44 is fixedly connected to the left end of the output end of the motor 43. The gear 44 meshes with the gear ring 42. A square rod 45 is slidably connected inside the support cylinder 41. A clamping plate 46 is fixedly connected to one end of the square rod 45, and a connecting plate 47 is fixedly connected to the other end of the square rod 45. The interior of the connecting plate 47 is... A bidirectional screw 48 is threadedly connected to the support cylinder 41, and a limiting plate 49 is fixedly connected to the surface of the support cylinder 41. The limiting plate 49 and the bidirectional screw 48 are slidably connected. By setting the limiting plate 49, the bidirectional screw 48 is prevented from moving. By rotating the bidirectional screw 48 and the connecting plate 47 to make threaded movement, the square rod 45 drives the clamping plate 46 to move, so that the device can clamp and fix pipes of different diameters. At the same time, the motor 43 drives the gear 44 to rotate, which in turn drives the gear ring 42 to rotate the support cylinder 41, which in turn makes the pipe rotate, thus making it easier to cut large-diameter pipes.

[0024] The specific implementation process of this utility model is as follows: In use, the pipe is passed through the support cylinder 41. The double-ended screw 48 is manually rotated, causing the connecting plate 47 to move in a threaded motion. This causes the connecting plate 47 to slide the square rod 45 into the support cylinder 41. The square rod 45 then moves the clamping plate 46, bringing it into contact with the pipe. This allows the device to clamp and fix pipes of different diameters. The screw cylinder 22 is then manually rotated, causing the screw 23 to move in a threaded motion. This causes the screw 23 to move upwards, compressing the spring 27. The spring 27 then pushes against the support plate 26, bringing the support plate 26 into contact with the pipe and providing support. This process is achieved by rotating the screw cylinder 22 and... The screw 23 performs a threaded motion, which causes the spring 27 to elastically push against the support plate 26, thereby causing the support roller 28 to move upward and contact the pipe, supporting the pipe and preventing excessive force on the middle of the pipe during the cutting process, which could lead to the overall breakage of the pipe. Then, the motor 43 is started, which drives the gear 44 to rotate. The gear 44 drives the gear ring 42 to rotate, which in turn drives the support cylinder 41 to rotate, thus causing the pipe to rotate and making it easier to cut large-diameter pipes. Then, the saw wheel 8 is started, and the cylinder 6 is started. The cylinder 6 drives the cylinder rod to extend, which moves the hanging plate 7, which in turn moves the saw wheel 8 downward, so that the saw wheel 8 cuts the pipe during its rotation.

[0025] By rotating the screw barrel 22 and screw 23 to make threaded motion, the spring 27 elastically pushes the support plate 26, which in turn causes the support roller 28 to move upward and contact the pipe, supporting the pipe and preventing excessive force on the middle of the pipe during the cutting process, which could cause the pipe to break as a whole.

[0026] By rotating the bidirectional screw 48 and connecting plate 47 to make threaded motion, the square rod 45 drives the clamping plate 46 to move, so that the device can clamp and fix pipes of different diameters. At the same time, the motor 43 drives the gear 44 to rotate, which in turn drives the gear ring 42 to rotate the support cylinder 41, which in turn makes the pipe rotate, thus making it easier to cut large-diameter pipes.

[0027] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A cutting device for civil engineering construction comprising a base plate characterised in that: The bottom plate is provided with a supporting mechanism, the upper end of the bottom plate is fixedly connected with a supporting plate, the supporting plate is provided with a rotating mechanism, the upper end of the bottom plate is fixedly connected with a support, the upper end of the support is fixedly installed with an air cylinder, the air cylinder rod of the air cylinder penetrates through the support and is in sliding connection with the support, the lower end of the air cylinder rod is fixedly connected with a hanging plate, and the lower end of the hanging plate is provided with a saw wheel.

2. The cutting device for municipal engineering construction of claim 1, characterized in that: The supporting mechanism comprises a sleeve, the upper end of the bottom plate is fixedly connected with the sleeve, the inside of the sleeve is installed with a screw cylinder through a bearing, the inside of the screw cylinder is connected with a screw rod through a thread, the outside of the screw rod is in sliding connection with a sliding cylinder, the upper end of the sliding cylinder is fixedly connected with a supporting plate, the inside of the sliding cylinder is provided with a spring, and the upper end of the supporting plate is provided with a supporting roller.

3. The cutting device for municipal engineering construction of claim 2, characterized in that: The surface of the screw rod is fixedly connected with a sliding pin, and the sliding pin is in sliding connection with the sliding cylinder.

4. The cutting device for municipal engineering construction of claim 2, characterized in that: One end of the spring is fixedly connected with the screw rod, and the other end of the spring is fixedly connected with the supporting plate.

5. The cutting device for municipal engineering construction of claim 2, characterized in that: The lower end of the supporting plate is fixedly connected with a guide rod, the upper end of the bottom plate is fixedly connected with a guide cylinder, and the guide cylinder is in sliding connection with the guide rod.

6. The cutting device for municipal engineering construction of claim 1, characterized in that: The rotating mechanism comprises a supporting cylinder, the inside of the supporting plate is installed with the supporting cylinder through a bearing, the outside of the supporting cylinder is fixedly connected with a tooth ring, the surface of the supporting plate is fixedly installed with a motor, the output end of the motor penetrates through the supporting plate and is in rotating connection with the supporting plate, the left end of the output end of the motor is fixedly connected with a gear, the gear is in meshing connection with the tooth ring, the inside of the supporting cylinder is in sliding connection with a square rod, one end of the square rod is fixedly connected with a clamping plate, the other end of the square rod is fixedly connected with a connecting plate, and the inside of the connecting plate is connected with a bidirectional screw rod through a thread.

7. The cutting device for municipal engineering construction of claim 6, characterized in that: The surface of the supporting cylinder is fixedly connected with a limiting plate, and the limiting plate is in sliding connection with the bidirectional screw rod.