A scissor air knife device for pipeline dust removal

Abstract

The present invention relates to the field of pipeline dust removal, and particularly to an air knife device for pipeline dust removal. The present invention provides an air knife device for pipeline dust removal that can be suitable for pipelines of different sizes, and at the same time can blow air more stably for cleaning and dust removal, so as to further effectively remove dust from the inner wall of the pipeline. An air knife device for pipeline dust removal includes a base and a cylinder, etc.; a cylinder is fixedly connected to the top of the base. The staff pushes the device in front of the pipeline to be dusted and starts the cylinder and the hydraulic cylinder, so that the locking rod no longer jams one of the synchronous gears. When the movable rod moves to contact the pipeline opening, the pipeline opening will resist the movable rod, so that the distance between the two air knife openings can be adjusted according to the size of the pipeline opening. The gas in the cylinder will be blown out through the air knife openings, and the air blown out by the air knife openings can blow off the dust on the inner wall of the pipeline, so as to effectively remove dust from the inner wall of the pipeline.

Description

Technical Field

[0001] The present invention relates to the field of pipeline dust removal, and in particular to a scissors air knife device for pipeline dust removal. Background Art

[0002] After a pipeline has been used for a long time, a large amount of dust will accumulate on the inner wall of the pipeline. The accumulation of a large amount of dust on the inner wall of the pipeline will affect the smoothness of the pipeline, resulting in the pipeline being unable to be used normally. Therefore, in order to ensure the normal use of the pipeline in the future, workers need to regularly remove dust from the inner wall of the pipeline.

[0003] Currently, dust removal of pipelines is generally carried out by workers holding a spray gun to clean the inner wall of the pipeline. However, the size of the pipeline nozzle is limited, and the spray gun cannot remove dust from all parts of the inner wall of the pipeline. Moreover, holding the spray gun cannot stably remove dust from the pipeline, resulting in the spray gun being inconvenient for effectively removing dust from the inner wall of the pipeline. Summary of the Invention

[0004] To overcome the existing defects, the present invention provides a scissors air knife device for pipeline dust removal that can be suitable for pipelines of different sizes, and at the same time can blow air more stably for cleaning and dust removal, so as to effectively remove dust from the inner wall of the pipeline.

[0005] The technical implementation solution of the present invention is as follows: A scissors air knife device for pipeline dust removal includes a base, a cylinder, a hydraulic cylinder, a hydraulic rod, an air outlet device, and an adjustment device. The top of the base is fixedly connected with a cylinder, and the top of the base is fixedly connected with a hydraulic cylinder. The hydraulic rod is slidably connected to the hydraulic cylinder. The air outlet device is arranged on the hydraulic rod and is connected to the base and the cylinder. The adjustment device is arranged on the air outlet device;

[0006] The air outlet device includes a bracket, a rotating shaft, a synchronous gear, a connecting rod, an air knife port, an air pipe, and a locking rod. The hydraulic rod is fixedly connected with a bracket. Two rotating shafts are rotatably connected to the bracket. Synchronous gears are fixedly connected to both rotating shafts. The two synchronous gears are meshed. Two connecting rods are fixedly connected to both rotating shafts. The two connecting rods are in a group. An air knife port is fixedly connected between the two connecting rods in each group. Two air pipes are fixedly connected to the air outlet of the cylinder. The two air pipes are respectively fixedly connected to the air knife ports. The air pipes are communicated with the air knife ports. The top of the base is fixedly connected with a locking rod. A short rack is arranged on the upper part of the locking rod. The short rack on the locking rod is meshed with one of the synchronous gears;

[0007] The adjusting device includes a fixed rod, a sliding rod, a pressure spring, a movable rod and a bayonet. Two fixed rods are fixedly connected to the bracket, and the two fixed rods are symmetrically arranged. Two sliding rods are slidably connected to each fixed rod. Pressure springs are connected between the two sliding rods and the fixed rods. Two bayonet pins are fixedly connected to each wind blade. The two bayonet pins form a group, and the two bayonet pins in each group are symmetrically arranged. One end of each sliding rod away from the fixed rod is fixedly connected to a movable rod, and a limiting groove is provided on each movable rod. The bayonet pin is slidably connected to the limiting groove on the movable rod.

[0008] The two air pipes (56) are made of rubber;

[0009] Each of the movable rods (64) is provided with a curved surface.

[0010] As an improvement of the above scheme, it also includes a cleaning device, which is arranged on a movable rod. The cleaning device includes a circular shaft sleeve, a cleaning circular shaft and a wind shield. A circular shaft sleeve is fixedly connected to each movable rod, a cleaning circular shaft is rotatably connected between the two circular shaft sleeves, the two cleaning circular shafts are symmetrically arranged, each cleaning circular shaft has a corrugated groove, and each cleaning circular shaft is fixedly connected to two wind shields, and the two wind shields are symmetrically arranged.

[0011] As an improvement of the above scheme, a stabilizing mechanism is also included, which is arranged on the bracket and connected to the base. The stabilizing mechanism includes a connecting circular shaft, a toothed clamping rod, a tension spring and a push rod. Two connecting circular shafts are fixedly connected to the bracket, and the two connecting circular shafts are symmetrically arranged. A toothed clamping rod is slidably connected between the two connecting circular shafts, and tension springs are connected between the two connecting circular shafts and the toothed clamping rod. A push rod is fixedly connected to the base, and the push rod is in contact with the toothed clamping rod.

[0012] As an improvement of the above scheme, it also includes a protrusion and a limiting rod. A protrusion is fixedly connected to one of the movable rods in each group, and the top of the protrusion is fixedly connected to the limiting rod. The limiting rod is slidably connected to the corrugated groove on the cleaning circular shaft.

[0013] As an improvement of the above solution, a rubber plate is also included, and each wind blade is fixedly connected to the rubber plate.

[0014] The beneficial effects of the present invention are as follows: 1. The staff pushes the device to the front of the pipe to be dusted and starts the cylinder and the hydraulic cylinder, so that the synchronous gear moves in the direction away from the cylinder and disengages from the locking rod, so that the locking rod no longer jams one of the synchronous gears. When the movable rod moves to contact the pipe opening, the pipe opening will resist the movable rod, so that the distance between the two wind knife openings can be adjusted according to the size of the pipe opening, and the gas in the cylinder will be blown out through the wind knife opening. The wind blown out by the wind knife opening can blow off the dust on the inner wall of the pipe, thereby effectively removing the dust from the inner wall of the pipe.

[0015] Second, the wind blown out by the wind outlet will cause the wind shield to swing. The swing of the wind shield will drive the cleaning circular shaft to rotate. The rotation of the cleaning circular shaft can clean the dust that has not been blown off on the inner wall of the pipeline. At the same time, the wind blown out by the wind outlet can blow the cleaned dust again, thereby improving the dust removal effect on the inner wall of the pipeline.

[0016] Third, when the bracket moves away from the cylinder, it will drive the connecting circular shaft and the toothed clamping rod to move. When the toothed clamping rod moves out of contact with the ejector rod, the tension spring will reset. The reset of the tension spring will drive the toothed clamping rod to move towards the bracket. The movement of the toothed clamping rod will engage with the two synchronous gears, thereby clamping the two synchronous gears, so that the distance between the two wind outlets remains unchanged after adjustment. The clamping of the two synchronous gears enables the wind outlets to blow more stably for cleaning and dust removal, thereby further effectively removing dust from the inner wall of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first three-dimensional structure schematic diagram of the present invention.

[0018] Figure 2 It is a three-dimensional structure schematic diagram of the air outlet device of the present invention.

[0019] Figure 3 It is a three-dimensional structure schematic diagram of the cleaning device of the present invention.

[0020] Figure 4 It is a partial three-dimensional structure schematic diagram of the stability mechanism of the present invention.

[0021] Figure 5 It is a three-dimensional structure schematic diagram of the stability mechanism of the present invention.

[0022] Figure 6 It is a second three-dimensional structure schematic diagram of the present invention.

[0023] In the reference numerals: 1 - base, 2 - cylinder, 3 - hydraulic cylinder, 4 - hydraulic rod, 5 - air outlet device, 51 - bracket, 52 - rotating shaft, 53 - synchronous gear, 54 - connecting rod, 55 - wind outlet, 56 - air pipe, 57 - locking rod, 6 - adjusting device, 61 - fixed rod, 62 - sliding rod, 63 - pressure spring, 64 - movable rod, 65 - pin, 7 - cleaning device, 71 - circular shaft sleeve, 72 - cleaning circular shaft, 73 - wind shield, 8 - stability mechanism, 81 - connecting circular shaft, 82 - toothed clamping rod, 83 - tension spring, 84 - ejector rod, 91 - protrusion, 92 - limiting rod, 101 - rubber plate. DETAILED DESCRIPTION OF THE INVENTION

[0024] All the standard parts used in the present invention can be purchased from the market. The special-shaped parts can be customized according to the descriptions and drawings of the specification. The specific connection methods of all parts adopt conventional means such as bolts, rivets, welding, and pasting, which are mature in the prior art, and will not be elaborated here.

[0025] Embodiment 1: A scissors air knife device for pipeline dust removal, as Figures 1-6 shown, includes a base 1, a cylinder 2, a hydraulic cylinder 3, a hydraulic rod 4, an air outlet device 5, and an adjusting device 6. The cylinder 2 is connected to the top of the base 1 by bolts, the hydraulic cylinder 3 is connected to the top of the base 1 by bolts, the hydraulic rod 4 is slidably connected to the hydraulic cylinder 3, the air outlet device 5 is arranged on the hydraulic rod 4 and the air outlet device 5 is connected to the base 1 and the cylinder 2, and the adjusting device 6 is arranged on the air outlet device 5.

[0026] The air outlet device 5 includes a bracket 51, a rotating shaft 52, a synchronous gear 53, a connecting rod 54, an air knife opening 55, an air pipe 56, and a locking rod 57. The bracket 51 is connected to the hydraulic rod 4 by bolts. Two rotating shafts 52 are rotatably connected to the bracket 51. Synchronous gears 53 are connected to the two rotating shafts 52 by flat keys. The two synchronous gears 53 are meshed. Two connecting rods 54 are connected to the two rotating shafts 52 by bolts. The two connecting rods 54 are in a group. An air knife opening 55 is connected between the two connecting rods 54 in each group by bolts. Two air pipes 56 are connected to the air outlet of the cylinder 2 by bolts. The two air pipes 56 are respectively connected to the air knife opening 55 by bolts. The air pipe 56 is communicated with the air knife opening 55. The locking rod 57 is connected to the top of the base 1 by bolts. A short rack is arranged on the upper part of the locking rod 57. The short rack on the locking rod 57 is meshed with one of the synchronous gears 53. The two air pipes 56 are made of rubber.

[0027] The adjusting device 6 includes a fixed rod 61, a sliding rod 62, a pressure spring 63, a movable rod 64, and a pin 65. Two fixed rods 61 are connected to the bracket 51 by rivets. The two fixed rods 61 are symmetrically arranged. Two sliding rods 62 are slidably connected to each fixed rod 61. Pressure springs 63 are connected between the two sliding rods 62 and the fixed rod 61 by hooks. Two pins 65 are connected to each air knife opening 55 by bolts. The two pins 65 are in a group. The two pins 65 in each group are symmetrically arranged. One end of each sliding rod 62 away from the fixed rod 61 is connected to a movable rod 64 by bolts. A limiting groove is formed on each movable rod 64. The pin 65 is slidably connected to the limiting groove on the movable rod 64. An arc surface is arranged on each movable rod 64.

[0028] At first, the short rack on the locking rod 57 meshes with one of the synchronous gears 53, so that the locking rod 57 blocks one of the synchronous gears 53. When dust removal is required, the staff pushes the device in front of the pipeline to be dusted and starts the cylinder 2 and the hydraulic cylinder 3. The hydraulic cylinder 3 will drive the hydraulic rod 4 to move away from the cylinder 2. The movement of the hydraulic rod 4 away from the cylinder 2 will drive the bracket 51 to move. The movement of the bracket 51 away from the cylinder 2 will drive the rotating shaft 52 and the fixed rod 61 to move. The movement of the rotating shaft 52 away from the cylinder 2 will drive the synchronous gear 53, the connecting rod 54 and the air knife port 55 to move. The movement of the synchronous gear 53 away from the cylinder 2 will disengage from the locking rod 57, so that the locking rod 57 no longer blocks one of the synchronous gears 53. The movement of the air knife port 55 away from the cylinder 2 will drive the pin 65 to move. The movement of the fixed rod 61 away from the cylinder 2 will slide the sliding rod 62 to move. The movement of the sliding rod 62 away from the cylinder 2 will drive the movable rod 64 to move. When the movable rod 64 moves to contact with the pipeline port, the pipeline port will resist the movable rod 64, so that the two groups of movable rods 64 move towards each other. The movement of the two groups of movable rods 64 towards each other will drive the sliding rod 62 to move, and the pressure spring 63 will be compressed. The movement of the two groups of movable rods 64 towards each other will drive the two air knife ports 55 to move. The movement of the two air knife ports 55 towards each other will drive the pin 65 and the connecting rod 54 to move. The movement of the two groups of connecting rods 54 towards each other will drive the two synchronous gears 53 to rotate. The pin 65 will slide in the limit groove of the movable rod 64, so that the distance between the two air knife ports 55 can be adjusted according to the size of the pipeline port. The gas in the cylinder 2 will enter the air knife port 55 through the two air pipes 56 and then be blown out through the air knife port 55. The air blown out by the air knife port 55 can blow off the dust on the inner wall of the pipeline, so that the inner wall of the pipeline can be effectively dusted. After the dust removal is completed, the staff adjusts the hydraulic cylinder 3 and closes the cylinder 2. The hydraulic cylinder 3 will drive the hydraulic cylinder 3 to move back towards the cylinder 2. The movement of the hydraulic rod 4 towards the cylinder 2 will drive the bracket 51, the rotating shaft 52 and the fixed rod 61 to move back. The movement of the rotating shaft 52 towards the cylinder 2 will drive the synchronous gear 53, the connecting rod 54, the air knife port 55 and the pin 65 to move back. The movement of the fixed rod 61 towards the cylinder 2 will drive the sliding rod 62 and the movable rod 64 to move back. When the movable rod 64 moves back to disengage from the pipeline port, the pressure spring 63 will reset. The reset of the pressure spring 63 will drive the two groups of sliding rods 62 and movable rods 64 to move back away from each other. The movement of the two groups of movable rods 64 away from each other will drive the two air knife ports 55, the pin 65 and the connecting rod 54 to move back. The movement of the two groups of connecting rods 54 towards each other will drive the two synchronous gears 53 to rotate in the reverse direction. When one of the synchronous gears 53 resets to mesh with the locking rod 57 again, the locking rod 57 will block one of the synchronous gears 53 again.

[0029] Example 2: On the basis of Example 1, as Figure 3 shown, it further includes a cleaning device 7. The cleaning device 7 is arranged on the movable rod 64. The cleaning device 7 includes a circular shaft sleeve 71, a cleaning circular shaft 72 and a wind deflector 73. A circular shaft sleeve 71 is connected to each movable rod 64 by bolts. A cleaning circular shaft 72 is rotatably connected between the two circular shaft sleeves 71. The two cleaning circular shafts 72 are symmetrically arranged. Each cleaning circular shaft 72 is provided with a corrugated groove. Two wind deflectors 73 are connected to each cleaning circular shaft 72 by bolts. The two wind deflectors 73 are symmetrically arranged.

[0030] The wind blown out from the wind outlet 55 will blow the wind deflector 73 to swing. The swing of the wind deflector 73 will drive the cleaning circular shaft 72 to rotate. The rotation of the cleaning circular shaft 72 can clean the dust that has not been blown off on the inner wall of the pipeline. At the same time, the wind blown out from the wind outlet 55 can blow the cleaned dust again, so as to improve the dust removal effect on the inner wall of the pipeline.

[0031] Example 3: On the basis of Example 2, as Figure 4 and Figure 5 shown, it further includes a stabilizing mechanism 8. The stabilizing mechanism 8 is arranged on the bracket 51 and the stabilizing mechanism 8 is connected to the base 1. The stabilizing mechanism 8 includes a connecting circular shaft 81, a toothed clamping rod 82, a tension spring 83 and a ejector rod 84. Two connecting circular shafts 81 are connected to the bracket 51 by bolts. The two connecting circular shafts 81 are symmetrically arranged. A toothed clamping rod 82 is slidably connected between the two connecting circular shafts 81. Tension springs 83 are connected between the two connecting circular shafts 81 and the toothed clamping rod 82 by hooks. An ejector rod 84 is connected to the base 1 by bolts. The ejector rod 84 contacts the toothed clamping rod 82.

[0032] At first, the ejector rod 84 contacts the toothed clamping rod 82, and the tension spring 83 is stretched. When the bracket 51 moves away from the cylinder 2, it will drive the connecting circular shaft 81 and the toothed clamping rod 82 to move. When the toothed clamping rod 82 moves out of contact with the ejector rod 84, the tension spring 83 will reset. The reset of the tension spring 83 will drive the toothed clamping rod 82 to move towards the bracket 51. The movement of the toothed clamping rod 82 will engage with the two synchronous gears 53, so as to clamp the two synchronous gears 53, so that the distance between the two wind outlets 55 remains unchanged after being adjusted. The clamping of the two synchronous gears 53 enables the wind outlets 55 to blow air more stably for cleaning and dust removal, so as to further effectively remove dust from the inner wall of the pipeline. When the bracket 51 moves towards the cylinder 2, it will drive the connecting circular shaft 81 and the toothed clamping rod 82 to move and reset. When the toothed clamping rod 82 moves into contact with the ejector rod 84 again, the tension spring 83 is stretched again.

[0033] Example 4: On the basis of Example 3, asFigure 3 As shown, it further includes a bump 91 and a limiting rod 92. A bump 91 is bolted to one of the movable rods 64 in each group. A limiting rod 92 is bolted to the top of the bump 91. The limiting rod 92 is slidably connected to the corrugated groove on the cleaning circular shaft 72.

[0034] While the wind deflector 73 drives the cleaning circular shaft 72 to rotate, the limiting rod 92 will squeeze the cleaning circular shaft 72 to move horizontally back and forth along the corrugated groove on the cleaning circular shaft 72, so that the cleaning circular shaft 72 can rotate and move back and forth at the same time, which can further improve the dust removal effect on the inner wall of the pipeline.

[0035] Embodiment 5: On the basis of Embodiment 4, as Figure 1 、 Figure 4 and Figure 6 shown, it further includes a rubber plate 101. A rubber plate 101 is bolted to each air knife opening 55.

[0036] The rubber plate 101 can scrape off the dust on the inner wall of the pipeline again, so as to further improve the dust removal effect on the inner wall of the pipeline.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A scissor air knife device for pipeline dust removal, characterized in that: It includes a base (1), a cylinder (2), a hydraulic cylinder (3), a hydraulic rod (4), an air outlet device (5) and an adjustment device (6). The top of the base (1) is fixedly connected to the cylinder (2), the top of the base (1) is fixedly connected to the hydraulic cylinder (3), the hydraulic rod (4) is slidably connected to the hydraulic cylinder (3), the air outlet device (5) is arranged on the hydraulic rod (4) and the air outlet device (5) is connected to the base (1) and the cylinder (2), and the adjustment device (6) is arranged on the air outlet device (5); The air outlet device (5) includes a bracket (51), a rotating shaft (52), a synchronous gear (53), a connecting rod (54), an air knife port (55), an air pipe (56) and a locking rod (57). The bracket (51) is fixedly connected to the hydraulic rod (4), two rotating shafts (52) are rotatably connected to the bracket (51), the synchronous gears (53) are fixedly connected to the two rotating shafts (52), the two synchronous gears (53) are meshed, two connecting rods (54) are fixedly connected to the two rotating shafts (52), the two connecting rods (54) form a group, and the air knife port (55) is fixedly connected between the two connecting rods (54) in each group. Two air pipes (56) are fixedly connected to the air outlet of the cylinder (2), the two air pipes (56) are respectively fixedly connected to the air knife port (55), the air pipe (56) is communicated with the air knife port (55), the locking rod (57) is fixedly connected to the top of the base (1), a short rack is arranged on the upper part of the locking rod (57), and the short rack on the locking rod (57) is meshed with one of the synchronous gears (53); The adjustment device (6) includes a fixed rod (61), a sliding rod (62), a compression spring (63), a movable rod (64) and a pin (65). Two fixed rods (61) are fixedly connected to the bracket (51), the two fixed rods (61) are symmetrically arranged, two sliding rods (62) are slidably connected to each fixed rod (61), and the compression spring (63) is connected between the two sliding rods (62) and the fixed rod (61). Two pins (65) are fixedly connected to each air knife port (55), the two pins (65) form a group, and the two pins (65) in each group are symmetrically arranged. One end of each sliding rod (62) away from the fixed rod (61) is fixedly connected to the movable rod (64), a limiting groove is formed in each movable rod (64), and the pin (65) is slidably connected to the limiting groove on the movable rod (64); The two air pipes (56) are made of rubber; An arc surface is arranged on each movable rod (64).

2. The scissor air knife device for pipeline dust removal according to claim 1, characterized in that: It further includes a cleaning device (7). The cleaning device (7) is arranged on the movable rod (64). The cleaning device (7) includes a circular shaft sleeve (71), a cleaning circular shaft (72) and a wind baffle (73). A circular shaft sleeve (71) is fixedly connected to each movable rod (64). A cleaning circular shaft (72) is rotatably connected between the two circular shaft sleeves (71). The two cleaning circular shafts (72) are symmetrically arranged. A corrugated groove is formed on each cleaning circular shaft (72). Two wind baffles (73) are fixedly connected to each cleaning circular shaft (72). The two wind baffles (73) are symmetrically arranged.

3. The scissor air knife device for pipeline dust removal according to claim 2, characterized in that: It further includes a stabilizing mechanism (8). The stabilizing mechanism (8) is arranged on the support (51) and the stabilizing mechanism (8) is connected to the base (1). The stabilizing mechanism (8) includes a connecting circular shaft (81), a toothed clamping rod (82), a tension spring (83) and a ejector rod (84). Two connecting circular shafts (81) are fixedly connected to the support (51). The two connecting circular shafts (81) are symmetrically arranged. A toothed clamping rod (82) is slidably connected between the two connecting circular shafts (81). Tension springs (83) are connected between the two connecting circular shafts (81) and the toothed clamping rod (82). An ejector rod (84) is fixedly connected to the base (1). The ejector rod (84) contacts the toothed clamping rod (82).

4. The scissor air knife device for pipeline dust removal according to claim 3, characterized in that: It further includes a protrusion (91) and a limiting rod (92). A protrusion (91) is fixedly connected to one of the movable rods (64) in each group. A limiting rod (92) is fixedly connected to the top of the protrusion (91). The limiting rod (92) is slidably connected to the corrugated groove on the cleaning circular shaft (72).

5. The scissor air knife device for pipeline dust removal according to claim 4, characterized in that: It further includes a rubber plate (101). A rubber plate (101) is fixedly connected to each air outlet (55).

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