A plastic large diameter pipe cutting device

Abstract

A large-diameter plastic pipe cutting device includes a fixing ring, a support shaft, and a chain saw. The outer wall of the fixing ring is equipped with a bearing seat, the bearing seat is equipped with a support shaft, and the main body of the chain saw is equipped with a connecting plate, and the support shaft is connected to the connecting plate. The fixing ring holds the pipe, and the chain saw is supported by the support shaft. The operator can cut the pipe by operating the handle of the chain saw. The structure is simple, easy to use, the end of the pipe after cutting is flat, and the safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal engineering pipe network construction, in particular to a plastic large-diameter pipe cutting device. Background Art

[0002] When cutting plastic pipes in municipal engineering pipe network projects, it is often necessary to use a cutting machine to cut the plastic pipes. However, some pipes have thick and smooth walls and large diameters, such as PE large-diameter pipes above DN500. When cutting with a cutting machine, it is very demanding on the workers' skills and strength. If you are not careful, side slippage will occur, causing the cut to tilt. After the pipe is cut, the cut end is not flat, and it takes time to grind it flat. In addition, during the cutting process, if the operation is improper, there is a possibility of cutting the worker's arms and hands, which poses a high risk of installation. Therefore, a cutting device for large-diameter pipes is designed. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, and to provide a plastic large-diameter pipe cutting device, which holds the pipe in a fixed ring, and the chain saw is supported by a support shaft for rotation, and an operator operates the handle of the chain saw to cut the pipe through the chain saw. The utility model has a simple structure, is easy to use, and the ends of the pipe are smooth after cutting, and reduces safety risks.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a plastic large-diameter pipe cutting device, including a fixed ring, a support shaft and a chain saw, the outer wall of the fixed ring is installed with a bearing seat, the bearing seat is installed with a support shaft, the main body of the chain saw is installed with a connecting plate, and the support shaft is connected to the connecting plate.

[0005] A mounting seat is fixedly arranged on the outer wall of the fixing ring, and the bearing seat is mounted on the mounting seat by bolts.

[0006] A plurality of adjusting devices are screwed on the radial threads of the fixing ring. The adjusting devices include adjusting screws, which are screwed in cooperation with the threads of the fixing ring.

[0007] One end of the adjusting screw rod located inside the fixing ring is provided with a pressing plate via a limit screw.

[0008] A protective pad is installed at the lower end of the pressing plate.

[0009] A notch is provided at one end of the support shaft connected to the connecting plate, and a protruding plate is fixedly connected to the connecting plate. After the protruding plate is inserted into the notch, it is connected and fixed by connecting bolts.

[0010] The fixing ring is assembled from two half rings.

[0011] One end of the two half rings is hinged by a hinge, and the other end is connected by a connecting structure.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model holds the pipe in a fixed ring, and the chain saw is supported by a support shaft. The operator operates the handle of the chain saw to cut the pipe with the chain saw. The utility model has a simple structure and is easy to use. The end of the pipe after cutting is smooth and the safety risk is reduced.

[0014] 2. The radial threaded connection on the fixing ring of the utility model is equipped with a plurality of adjusting devices, so that the fixing ring can be easily adapted to pipes of different diameters.

[0015] 3. The end of the support shaft of the utility model connected to the connecting plate is provided with a notch, and an extension plate is fixedly connected to the connecting plate. After the extension plate is inserted into the notch, it is connected and fixed by connecting bolts, which is convenient for installing or disassembling the chain saw on the support shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0018] Figure 2 It is a right view structural schematic diagram of the utility model.

[0019] Figure 3 for Figure 1 Enlarged structural diagram at A in the middle.

[0020] Figure 4 It is a schematic diagram of the main structure of the utility model in use.

[0021] Figure 5 It is a right side structural schematic diagram of the utility model in use state.

[0022] Reference numerals: fixing ring 10, mounting seat 11, bearing seat 12, hinge 13, connecting structure 14;

[0023] Support shaft 20, notch 21, connecting bolt 22;

[0024] Chain saw 30, connecting plate 31, extension plate 32;

[0025] Adjustment device 40, adjustment screw 41, pressure plate 42, limit screw 43, protection pad 44;

[0026] Tube 50. DETAILED DESCRIPTION

[0027] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0028] See also Figure 1-5 A plastic large diameter pipe cutting device includes a fixing ring 10, a support shaft 20 and a chain saw 30. The outer wall of the fixing ring 10 is installed with a bearing seat 12, and the support shaft 20 is installed on the bearing seat 12. A connecting plate 31 is installed on the main body of the chain saw 30, and the support shaft 20 is connected to the connecting plate 31. The fixing ring 10 holds the pipe 50, and the chain saw 30 can rotate around the support shaft 20. The operator operates the handle of the chain saw 30 to cut the pipe 50 through the chain saw 30. The structure is simple, easy to use, the end of the pipe after cutting is flat, and the safety risk is reduced.

[0029] It should be noted that in this embodiment, the chain saw 30 is an external product. The connecting plate 31 is installed on one side of the chain saw main body through the existing bolts of the chain saw. The chain saw main body is provided with a bolt for adjusting the extension length of the chain plate. After removing the bolt, replace it with a longer screw to install the connecting rod 31 to this position.

[0030] See also Figure 1 The outer wall of the fixing ring 10 is fixed with a mounting seat 11, and the bearing seat 12 is mounted on the mounting seat 11 by bolts, which is convenient for the installation of the bearing seat 12. Specifically, the mounting seat 11 is welded on the fixing ring 10.

[0031] See also Figure 1 , 3 5. A plurality of adjusting devices 40 are screwed on the radial threads of the fixing ring 10 to facilitate the fixing ring 10 to adapt to pipes 50 of different diameters.

[0032] Specifically, in the first solution, the adjusting device 40 includes an adjusting screw 41, and the adjusting screw 41 is threadedly engaged with the fixing ring 10. Figure 1 There are six adjusting devices 40 evenly distributed around the fixing ring 10. Among them, six adjusting screws 41 are radially threadedly engaged with the fixing ring 10. By screwing and adjusting the adjusting screws 41, the fixing ring 10 can adapt to pipes 50 of different diameters within a certain range.

[0033] For further information, see Figure 3 The end of the adjusting screw 41 located inside the fixing ring 10 is installed with a pressing plate 42 through a stop screw 43. The contact surface between the adjusting screw 41 and the pipe 50 is increased to prevent the adjusting screw 41 from damaging the outer wall of the pipe when rotating. In this embodiment, the pressing plate 42 can be rotated after being installed, that is, after the stop screw 43 is tightened, there is still a gap between the fiber screw 43 and the pressing plate 42. In this way, after the pressing plate 42 abuts against the outer wall of the pipe, the pressing plate 42 is not easy to rotate.

[0034] Furthermore, Figure 3 In the embodiment, a protective pad 44 is installed at the lower end of the pressing plate 42. The protective pad 44 can be bonded to the bottom of the pressing plate 42, and the protective pad 44 can be a rubber pad or a silicone pad. The protective pad 44 is provided to increase the friction with the outer wall of the pipe and improve stability.

[0035] See also Figure 2 The end of the support shaft 20 connected to the connecting plate 31 is provided with a notch 21, and the connecting plate 31 is fixed with an extension plate 32. After the extension plate 32 is inserted into the notch 21, it is connected and fixed by a connecting bolt 22. Through the above structure, it is convenient to install or remove the chain saw on the support shaft 20.

[0036] See also Figure 1 The fixing ring 10 is assembled from two half rings, which makes it easy to install the fixing ring 10 on the pipe.

[0037] In one embodiment, see Figure 1 , one end of the two half rings is hinged by a hinge 13, and the other end is connected by a connecting structure 14. The hinge 13 can be a door shaft or a hinge, and the connecting structure 14 can be a lug plate extending from the other end of the two half rings, and the two lug plates are connected by bolts. The connecting structure 14 can also be connected by a lock buckle. When the lock buckle is used for connection, the hook part of the lock buckle is installed with one end of one of the half rings, and the lock ring part is installed with one end of the other half ring, so that the closing and assembly of the fixing ring 10 is more convenient.

[0038] The working process or principle of the utility model is as follows:

[0039] When using, see Figure 4 , 5 First, support and suspend the pipe 50, open the connection structure 14 of the fixing ring 10, put the two half rings on the pipe 50, and then close and fix the fixing ring 10. Tighten the adjustment device 40 to fix the fixing ring 10 to the pipe 50. Then start the electric chain saw, and the operator operates the handle of the chain saw 30, and the chain saw 30 swings through the support shaft 20, so that the pipe 50 is cut by the chain saw 30. The cutting device has the characteristics of simple structure, easy use, and flat ends of the pipe after cutting.

Claims

1. A large diameter plastic pipe cutting device, characterized in that: The invention comprises a fixing ring (10), a supporting shaft (20) and a chain saw (30), wherein a bearing seat (12) is mounted on the outer wall of the fixing ring (10), the supporting shaft (20) is mounted on the bearing seat (12), a connecting plate (31) is mounted on the main body of the chain saw (30), and the supporting shaft (20) is connected to the connecting plate (31).

2. A large diameter plastic pipe cutting device according to claim 1, characterized in that: A mounting seat (11) is fixedly provided on the outer wall of the fixing ring (10), and the bearing seat (12) is mounted on the mounting seat (11) by means of bolts.

3. A large diameter plastic pipe cutting device according to claim 1, characterized in that: A plurality of adjustment devices (40) are screwed onto the radial threads on the fixing ring (10). The adjustment devices (40) include adjustment screws (41). The adjustment screws (41) are screwed into the fixing ring (10) in a threaded manner.

4. A large diameter plastic pipe cutting device according to claim 3, characterized in that: One end of the adjusting screw rod (41) located inside the fixing ring (10) is mounted with a pressing plate (42) via a limiting screw (43).

5. A large diameter plastic pipe cutting device according to claim 4, characterized in that: A protective pad (44) is installed at the lower end of the pressing plate (42).

6. A large diameter plastic pipe cutting device according to claim 1, characterized in that: One end of the support shaft (20) connected to the connecting plate (31) is provided with a notch (21), and a protruding plate (32) is fixedly connected to the connecting plate (31). After the protruding plate (32) is inserted into the notch (21), it is connected and fixed by a connecting bolt (22).

7. A large diameter plastic pipe cutting device according to any one of claims 1 to 6, characterized in that: The fixing ring (10) is assembled from two half rings.

8. A large diameter plastic pipe cutting device according to claim 7, characterized in that: One end of the two half rings is hinged via a hinge (13), and the other end is connected via a connecting structure (14).

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