Air conditioner pipeline cutting device

Abstract

The air conditioner pipeline cutting device comprises a workbench, a cutting machine is rotationally connected to the table top of the workbench, a ratchet wheel and a pawl are arranged on a rotating shaft of the cutting machine, the ratchet wheel is rotationally connected with the rotating shaft of the cutting machine, and the pawl and the rotating shaft of the cutting machine synchronously rotate and can drive the ratchet wheel to rotate; a crankshaft is further arranged on the table top of the workbench and located on one side of the cutting machine, the crankshaft is connected with a push block through a connecting rod, the push block can be driven by rotation of the crankshaft to slide on the table top of the workbench in the direction perpendicular to the axial direction of the cutting machine in a reciprocating mode, and the side, away from the crankshaft, of the push block is used for making contact with a pipeline. A transmission mechanism is arranged below the table top of the workbench, and the ratchet wheel can drive the crankshaft to rotate through the transmission mechanism. According to the device, when the cutting machine rises, the cut pipeline can be directly pushed away through linkage of the pawl, the ratchet wheel, the transmission mechanism, the crankshaft, the connecting rod and the push block, the next section of pipeline is abdicated, and smooth, continuous and convenient cutting of the pipeline is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner pipeline cutting technical field, concretely is a kind of air conditioner pipeline cutting device. BACKGROUND

[0002] When installing some non-household air conditioners, it is often necessary to erect pipelines, and different installation positions and installation environments can result in different lengths of required pipelines, so the pipeline raw materials need to be cut according to actual requirements. When cutting, several sections of pipelines with required lengths are generally cut continuously for efficiency, and the existing cutting machines need to be manually moved away after cutting to avoid affecting the cutting of the next section of pipeline, which is very inconvenient. SUMMARY

[0003] To solve the technical problems in the above background art, the utility model provides an air conditioner pipeline cutting device.

[0004] The utility model technical scheme is as follows:

[0005] An air conditioner pipeline cutting device includes a workbench, a cutting machine is rotatably connected to the top surface of the workbench, the cutting machine swings up and down to enter a cutting position and a stop cutting position, a ratchet wheel and a pawl are arranged on the rotating shaft of the cutting machine, the ratchet wheel is rotatably connected to the rotating shaft of the cutting machine, and the pawl rotates synchronously with the rotating shaft of the cutting machine and can drive the ratchet wheel to rotate;

[0006] A crankshaft is further arranged on the top surface of the workbench and located on one side of the cutting machine, a push block is connected to the crankshaft through a connecting rod, the push block can reciprocally slide on the top surface of the workbench along an axial direction perpendicular to the cutting machine under the driving of the crankshaft, and the side of the push block away from the crankshaft is used to contact the pipeline;

[0007] A transmission mechanism is arranged under the top surface of the workbench, and the ratchet wheel can drive the crankshaft to rotate through the transmission mechanism.

[0008] In the above scheme, the crankshaft is arranged to rotate one revolution when the cutting machine swings from the cutting position to the stop cutting position.

[0009] Preferably, the rotating axis of the crankshaft is parallel to the rotating shaft of the cutting machine.

[0010] Preferably, a plurality of pads for supporting the pipeline are further arranged on the top surface of the workbench and distributed on both sides of the cutting machine along a direction parallel to the rotating shaft of the cutting machine, the top of each pad is provided with a clamping groove for clamping the pipeline, the height of the push block is higher than that of the pads, and the limit positions of the reciprocating movement of the push block are located on both sides of the pads.

[0011] Preferably, the side of the push block away from the crankshaft includes an inclined surface and a vertical surface, the inclined surface is inclined toward the crankshaft and the upper edge of the inclined surface is higher than that of the pads, and the vertical surface extends upward from the upper edge of the inclined surface.

[0012] Preferably, the vertical surface of the push block is provided with a non-slip rubber pad.

[0013] Preferably, the inclined surface of the push block has an inclination angle of 40-50 degrees.

[0014] Further, the tabletop of the workbench is provided with a sliding rail, and the push block is in sliding fit with the sliding rail.

[0015] Preferably, the length of the connecting rod is adjustable.

[0016] Preferably, the crankshaft is provided with two crank arms in parallel along the axial direction, and each of the two crank arms is connected with a push block through a connecting rod.

[0017] The air conditioner pipeline cutting device provided by the utility model can push the cut pipeline away from its position when the lifting action of the cutting machine, drive the push block to slide through the rotation of the ratchet wheel driven by the pawl and the rotation of the crankshaft driven by the transmission mechanism, and thus make room for the next pipeline, without manual pipeline moving, so that the pipeline can be smoothly and continuously and conveniently cut. BRIEF DESCRIPTION OF DRAWINGS

[0018] In the drawings:

[0019] Figure 1 is a schematic view of the cutting device;

[0020] Figure 2 is Figure 1 is an enlarged schematic view of A part;

[0021] Figure 3 is Figure 1 is an enlarged schematic view of B part;

[0022] Figure 4 is a front view of the cutting device.

[0023] The components represented by the reference numerals in the drawings are:

[0024] 1, workbench; 2, cutting machine; 3, ratchet wheel; 4, pawl; 5, crankshaft; 51, crank arm; 6, connecting rod; 7, push block; 8, transmission mechanism; 9, pad; 10, sliding rail. DETAILED DESCRIPTION

[0025] As Figures 1 to 4 shown, the utility model embodiment provides a kind of air conditioner pipeline cutting device, including workbench 1, the tabletop of workbench 1 is rotationally connected with cutting machine 2, cutting machine 2 includes motor, cutting wheel and handle, the pivot of cutting wheel is parallel with the pivot of cutting machine 2 and workbench 1, cutting disc is pressed into cutting position by handle by cutting machine 2 and the pivot of workbench 1, or is lifted to stop cutting position. Cutting machine 2 can be any kind of existing down pressure type cutting machine 2, and its specific structure is not described in detail here.

[0026] In this embodiment, the rotating shaft of the cutting machine 2 is provided with a ratchet 3 and a pawl 4. The ratchet 3 is rotatably connected to the rotating shaft of the cutting machine 2, and the pawl 4 rotates synchronously with the rotating shaft of the cutting machine 2 and cooperates with the ratchet 3, which can drive the ratchet 3 to rotate.

[0027] A crankshaft 5 is also provided on the table surface of the workbench 1, located on one side of the cutting machine 2. The crankshaft 5 is connected to a push block 7 via a connecting rod 6. The push block 7 can slide back and forth on the table surface of the workbench 1 in the direction perpendicular to the cutting machine 2 under the drive of the rotation of the crankshaft 5. The side of the push block 7 away from the crankshaft 5 is used to contact the pipe.

[0028] A transmission mechanism 8 is provided under the table surface of the workbench 1, and the ratchet 3 can drive the crankshaft 5 to rotate through the transmission mechanism 8.

[0029] The ratchet 3 and pawl 4 are configured such that the pawl 4 only moves the ratchet 3 when the cutting machine 2 is raised.

[0030] The cutting device provided in this application drives the ratchet 3 to rotate through the pawl 4 when the cutting machine 2 is lifted, and then drives the crankshaft 5 to rotate through the transmission mechanism 8, thereby driving the push block 7 to slide. This can push the cut pipe away from its position to make way for the next section of pipe, eliminating the need for manual pipe movement and achieving smooth, continuous, and convenient pipe cutting.

[0031] Detailed description is as follows:

[0032] A connecting column is provided on the worktable 1, and the cutting machine 2 is rotatably connected to the connecting column, and is located at a certain distance from the worktable 1. Preferably, the cutting machine 2 is located on one side of the connecting column along the axial direction of the cutting machine 2's rotation axis. Figure 1 As shown, the connecting post is located behind the workbench 1, and the cutting machine 2 is located to the right of the connecting post. The pipes are arranged in a left-right direction, continuing from left to right. The crankshaft 5 is located to the right of the cutting machine 2 and in front of the pipe arrangement. The push block 7 pushes the pipe backward. To avoid interference when the push block 7 pushes the cut pipe backward, in this embodiment, the ratchet 3 and pawl 4 are located on the left side of the connecting post.

[0033] The crankshaft 5 is configured to rotate one revolution when the cutting machine 2 swings from the cutting position to the stop cutting position. That is, when the cutting machine 2 rises, the crankshaft 5 rotates and moves, driving the push block 7 to slide back and then forward once. The limit positions of the reciprocating motion of the push block 7 are located on both sides of the pipe placement position.

[0034] The crankshaft 5 is supported by several support plates, and its axis of rotation is parallel to the shaft of the cutting machine 2. The crankshaft 5 is equipped with a crank section 51, and one end of the connecting rod 6 is rotatably connected to the crank section 51, while the other end is connected to the push block 7. Preferably, the length of the connecting rod 6 is adjustable to accommodate pipes of different diameters.

[0035] The length adjusting structure of the connecting rod 6 can be any structure for adjusting the length of the rod in the prior art. In the embodiment, the connecting rod 6 is composed of two rod members and a rotating sleeve connecting the two rod members. The two rod members are inserted into the rotating sleeve from the two ends of the rotating sleeve. The rotating sleeve is provided with reverse screws at the middle position and the two ends, which are threadedly connected with the two rod members. The length of the connecting rod 6 can be adjusted by rotating the rotating sleeve.

[0036] The workbench 1 is further provided with a plurality of cushion blocks 9 for cushioning the pipes. The cushion blocks 9 are arranged in a line along the parallel direction of the cutting machine 2 and on both sides of the cutting machine 2. The top of the cushion block 9 is provided with a clamping groove for clamping the pipe. After the pipe is placed in the clamping groove, the pipe is clamped in the cushion block 9. During cutting, the pipe is fixed.

[0037] The height of the push block 7 is higher than that of the cushion block 9, and the limit position of the reciprocating movement is located on both sides of the cushion block 9, so that the pipe can be pushed away from the clamping groove and pushed to the rear side of the workbench 1.

[0038] In order to facilitate the lifting of the pipe from the clamping groove of the cushion block 9, the side of the push block 7 away from the crankshaft 5 includes an inclined surface and a vertical surface. The inclined surface is inclined towards the crankshaft 5 and the upper edge is higher than the cushion block 9. The vertical surface extends upward from the upper edge of the inclined surface. The inclined surface allows the push block 7 to be inserted under the pipe and gradually lift the pipe. The vertical surface pushes the pipe backward.

[0039] In order to easily lift the pipe without significantly increasing the front and rear dimensions of the push block 7, the inclination angle of the inclined surface of the push block 7 is preferably 40-50 degrees.

[0040] In order to improve the pushing effect of the push block 7, a non-slip rubber pad is provided on the vertical surface of the push block 7 to generate a better friction force between the push block 7 and the pipe.

[0041] In addition, in the embodiment, in order to ensure the stable sliding of the push block 7, the workbench 1 is further provided with a sliding rail 10, and the push block 7 is in sliding cooperation with the sliding rail 10.

[0042] In the embodiment, the crankshaft 5 can be provided with two crank webs 51 side by side along the axis direction, and each of the two crank webs 51 is connected with a push block 7 through a connecting rod 6. The two crank webs 51 are bent in the same direction, and the two push blocks 7 and the two connecting rods 6 are parallel to each other, so that the two push blocks 7 can push the cut pipe parallelly backward.

[0043] The transmission mechanism 8 includes but is not limited to synchronous belt transmission, gear transmission and worm gear transmission.

[0044] In the embodiment, the transmission mechanism 8 comprises a first transmission rod and a second transmission rod vertically rotatably connected to the workbench 1, a bevel gear synchronously connected to the ratchet wheel 3, a bevel gear arranged at the upper end of the first transmission rod, and a bevel gear arranged at the lower end of the second transmission rod. The bevel gear at the upper end of the first transmission rod is in transmission connection with the ratchet wheel 3, the lower ends of the first transmission rod and the second transmission rod are located below the workbench 1, the lower end of the first transmission rod is in transmission connection with the lower end of the second transmission rod through a synchronous belt, the upper end of the second transmission rod is in transmission connection with the crankshaft 5 through a bevel gear, and one end of the crankshaft 5 is also provided with a bevel gear.

[0045] In use, the cutting device of the embodiment is used to place the pipeline on the cushion block 9 to adjust the position, press down the cutting machine 2 to cut, lift the cutting machine 2 after cutting, at this time, the pawl 4 pulls the ratchet wheel 3, the ratchet wheel 3 drives the crankshaft 5 to rotate through the transmission mechanism 8, the crankshaft 5 drives the push block 7 to move backward through the connecting rod 6, pushes the cut pipeline backward to move away from the cushion block 9, and then moves forward to return to the original position. At this time, the worker can directly continue to feed the pipeline to the right. When continuously cutting the pipeline, the worker only needs to control the cutting machine 2 and the pipeline, and does not need to participate in cleaning the cut pipeline, thereby simplifying the operation and improving the efficiency and convenience of continuous cutting.

Claims

1. An air conditioning pipe cutting device, comprising a workbench (1), a cutting machine (2) rotatably connected to the workbench (1), the cutting machine (2) swinging up and down to enter a cutting position and a stopping cutting position, characterized in that, The cutting machine (2) has a ratchet (3) and a pawl (4) on its rotating shaft. The ratchet (3) is rotatably connected to the rotating shaft of the cutting machine (2). The pawl (4) rotates synchronously with the rotating shaft of the cutting machine (2) and can drive the ratchet (3) to rotate. The workbench (1) is also provided with a crankshaft (5) located on one side of the cutting machine (2). The crankshaft (5) is connected to a push block (7) via a connecting rod (6). The push block (7) can slide back and forth on the workbench (1) in the direction perpendicular to the cutting machine (2) under the drive of the crankshaft (5) rotation. The side of the push block (7) away from the crankshaft (5) is used to contact the pipe. The workbench (1) has a transmission mechanism (8) under its surface, and the ratchet (3) can drive the crankshaft (5) to rotate through the transmission mechanism (8).

2. The air conditioning pipe cutting device as described in claim 1, characterized in that, The crankshaft (5) is configured to rotate one revolution when the cutting machine (2) moves from the cutting position to the stop cutting position.

3. The air conditioning pipe cutting device as described in claim 2, characterized in that, The axis of rotation of the crankshaft (5) is parallel to the axis of rotation of the cutting machine (2).

4. The air conditioning pipe cutting device as described in claim 3, characterized in that, The workbench (1) is also provided with several pads (9) for padding pipes, which are distributed on both sides of the cutting machine (2) along the rotation direction of the parallel cutting machine (2). The top of the pad (9) is provided with a slot for clamping the pipe. The height of the push block (7) is higher than that of the pad (9), and the extreme position of the reciprocating movement is located on both sides of the pad (9).

5. An air conditioning pipe cutting device as described in claim 4, characterized in that, The side of the push block (7) away from the crankshaft (5) includes an inclined surface and a vertical surface. The inclined surface is inclined towards the crankshaft (5) and its upper edge is higher than the pad block (9). The vertical surface extends upward from the upper edge of the inclined surface.

6. The air conditioning pipe cutting device as described in claim 5, characterized in that, The vertical surface of the push block (7) is provided with an anti-slip rubber pad.

7. An air conditioning pipe cutting device as described in claim 6, characterized in that, The tilt angle of the inclined surface of the pusher (7) is 40-50 degrees.

8. An air conditioning pipe cutting device as described in claim 1, characterized in that, The workbench (1) has a slide rail (10) on its surface, and the push block (7) slides in cooperation with the slide rail (10).

9. An air conditioning pipe cutting device as described in claim 1, characterized in that, The length of the connecting rod (6) is adjustable.

10. An air conditioning pipe cutting device according to any one of claims 3-9, characterized in that, The crankshaft (5) has two crank sections (51) arranged side by side along the axial direction, and each crank section (51) is connected to a push block (7) by a connecting rod (6).

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