阅读说明：本技术 一种按直径分拣建筑钢管的输送装置 (Conveying device for sorting building steel pipes according to diameters ) 是由 顾亚成 于 2020-07-14 设计创作，主要内容包括：本发明公开了一种按直径分拣建筑钢管的输送装置,包括箱体,箱体右端设置有开口向右的右传送槽,右传送槽左端壁设置有开口向右的左传送槽,左传送槽与右传送槽底端设置有建筑钢管传输机构,右传送槽上侧设置有下气缸腔,下气缸腔内滑动连接有下活塞,下活塞底面固定设置有左斜块,左斜块底端位于左传送槽内,左斜块底端斜面能够与建筑钢管右端滑动连接,下气缸腔顶端固定设置有的输气管,输气管顶端固定设置有上气缸腔,上气缸腔底面固定设置有位于输气管后侧的出风管固定连接,出风管底端设置有开口向前的上滑槽,能够自动将混合在一起的建筑钢管按照各自不同的直径进行分拣传输,而且能够利用风吹去会在钢管表面上堆积覆盖的尘土等。(The invention discloses a conveying device for sorting building steel pipes according to diameters, which comprises a box body, wherein a right conveying groove with a right opening and a right opening is arranged at the right end of the box body, a left conveying groove with a right opening and a right opening is arranged at the left end wall of the right conveying groove, a building steel pipe conveying mechanism is arranged at the bottom ends of the left conveying groove and the right conveying groove, a lower cylinder cavity is arranged at the upper side of the right conveying groove, a lower piston is connected in the lower cylinder cavity in a sliding manner, a left inclined block is fixedly arranged on the bottom surface of the lower piston, the bottom end of the left inclined block is positioned in the left conveying groove, the inclined surface at the bottom end of the left inclined block can be connected with the right end of a building steel pipe in a sliding manner, a gas pipe is fixedly arranged at the top end of the lower cylinder cavity, an upper cylinder cavity is fixedly arranged at the top end of the gas pipe, an air outlet pipe positioned at the, and dust and the like accumulated and covered on the surface of the steel pipe can be blown off by wind.)

1. The utility model provides a according to conveyor of diameter letter sorting building steel pipe, includes the box, its characterized in that: the right end of the box body is provided with a right conveying groove with a right opening, the left end wall of the right conveying groove is provided with a left conveying groove with a right opening, the bottom ends of the left conveying groove and the right conveying groove are provided with a building steel pipe transmission mechanism, the upper side of the right conveying groove is provided with a lower cylinder cavity, a lower piston is connected in the lower cylinder cavity in a sliding manner, the bottom surface of the lower piston is fixedly provided with a left inclined block, the bottom end of the left inclined block is positioned in the left conveying groove, the bottom inclined surface of the left inclined block can be connected with the right end of a building steel pipe in a sliding manner, the top end of the lower cylinder cavity is fixedly provided with a gas pipe, the top end of the gas pipe is fixedly provided with an upper cylinder cavity, the bottom surface of the upper cylinder cavity is fixedly provided with a gas outlet pipe which is positioned at the rear side of the gas pipe in a fixed manner, the bottom end of the gas outlet pipe is, go up the fixed plasticity gasket that is provided with in through-hole top, go up the slider top surface with go up through slider spring coupling between the spout, it is provided with the ascending flexible pipe groove of opening to go up the spout diapire, flexible pipe tank bottom surface with the flexible pipe of fixedly connected with between the top shoe bottom surface, flexible pipe bottom fixedly connected with input tube, input tube bottom and folding flexible gasbag fixed connection, folding flexible gasbag is fixed to be set up in the forward ejector pad spout rear end wall of opening, sliding connection has the ejector pad in the ejector pad spout, ejector pad rear end face with folding flexible gasbag fixed connection, right side conveying groove right-hand member is provided with letter sorting transmission passage device.

2. The conveying device for sorting the construction steel pipes according to the diameters as claimed in claim 1, wherein: the bottom surface of the lower piston is connected with the lower cylinder cavity through a lower piston spring, the top end of the lower cylinder cavity is fixedly provided with an air supply pipe which is communicated with the outside and is arranged on the left side of the air supply pipe, the upper cylinder cavity is connected with an upper piston in a sliding manner, the top surface of the upper piston is connected with the upper cylinder cavity through an upper piston spring, the rear end surface of the push block is connected with the push block chute through a push block spring, the rear end of the folding telescopic air bag is fixedly provided with an output pipe which is positioned on the lower side of the input pipe, the rear end of the output pipe is positioned in the lower chute, the lower chute is connected with a lower sliding block in a sliding manner, a lower through hole which is communicated from front to back is arranged in the lower sliding block, the front end of the lower through hole is fixedly provided with a lower plastic sealing sheet, the rear end surface, the left end of the hose is fixedly connected with the inflation tube, the left end of the inflation tube is provided with a wind blowing dust removal mechanism, the left end of the box body is fixedly provided with an input hopper, and the top surface of the input hopper is provided with an input hopper groove with an upward opening.

3. The conveying device for sorting the construction steel pipes according to the diameters as claimed in claim 1, wherein: the building steel pipe transmission mechanism comprises twenty left conveying rollers which are arranged in a left conveying groove evenly in the left side in a left-right mode, a left conveying roller is fixedly connected with a left gear shaft, the left gear shaft is connected with a box body in a rotating mode, a left gear is symmetrically and fixedly arranged on the front end and the rear end of the left gear shaft, nine middle conveying rollers which are arranged on the right side of the left conveying roller are evenly arranged on the left side and the right side in a right conveying groove, the middle conveying rollers are fixedly connected with the middle gear shaft, three middle gear shafts are symmetrically and fixedly arranged on the front end and the rear end of the middle gear shaft, three right conveying rollers which are evenly arranged on the left side and the right side are evenly arranged on the front end and the rear end of the right conveying groove, a right gear shaft is fixedly connected with the box body in a rotating, Rear side intermediate gear and rear side right side gear all sets up in the rear gear intracavity, the front side left side gear is located left gear intracavity, the front side intermediate gear and front side right side gear all is located right gear intracavity, and is adjacent left side gear intermediate gear with meshing between the right side gear is connected, the left side most left side left gear shaft rear end power is connected with the motor, a left side transfer roller intermediate transfer roller with right side transfer roller can transmit and be located above that the building steel pipe.

4. The conveying device for sorting the construction steel pipes according to the diameters as claimed in claim 1, wherein: the sorting and conveying channel device comprises a partition plate which is uniformly arranged between the upper end wall and the lower end wall of the right end of the right conveying groove in the front-back direction, the partition plate is rotationally connected with the right gear shaft, three right inclined blocks are uniformly arranged at the front and the back of the right end of the right conveying groove, the inclined plane at the bottom end of the right inclined block can be connected with the right end of the building steel pipe in a sliding way, the right inclined block is positioned in an inclined block sliding groove with a downward opening and is connected with the inclined block sliding groove in a sliding way, the top surface of the right sloping block is connected with the sloping block chute through a sloping block spring, the top end of the sloping block chute is provided with a contact switch, a front winding rod is fixedly arranged between the left end wall and the right end wall at the top end of the inclined block sliding groove, a pull rope is fixedly arranged on the top surface of the right inclined block, the pull rope is wound around the front winding rod and the rear winding rods symmetrically arranged in the left-right direction and fixedly connected with the rear end face of the lower sliding block, and the rear winding rods are fixedly arranged between the upper end wall and the lower end wall of the winding rod cavity.

5. The conveying device for sorting the construction steel pipes according to the diameters as claimed in claim 2, wherein: the wind blowing dust removal mechanism comprises an air bag fixedly connected with the top of the left end of the inflation tube, the air bag is arranged in an air bag cavity, a pressing block is connected in the air sac cavity in a sliding way, the top surface of the pressing block is connected with the air sac cavity through a pressing block spring, the top wall of the air bag cavity is fixedly provided with an electromagnet, the bottom end of the air bag is fixedly connected with an airflow pipe positioned at the front side of the inflation pipe, the bottom end of the airflow pipe is fixedly provided with a dust removal blowpipe which is positioned at the left end of the left conveying groove, the right end of the input hopper groove is provided with an electric sliding door which is connected with an electric sliding rail groove with a downward opening in a sliding way, the front end wall and the rear end wall of the electric sliding rail groove are symmetrically and fixedly provided with electric sliding rails, the electric sliding rails are in power sliding connection with the electric sliding door, and the electric sliding door can be connected with a circuit between the electromagnet and a power supply of the electromagnet.

6. The conveying device for sorting the construction steel pipes according to the diameters as claimed in claim 5, wherein: the front end face of the upper slide block is fixedly connected with a supporting block, the supporting block is located in a supporting block sliding groove and is in sliding connection with the supporting block sliding groove, the top face of the supporting block is connected with the supporting block sliding groove through a supporting block spring, the bottom face of the supporting block is fixedly connected with a middle inclined block, the bottom end of the middle inclined block is located in the right conveying groove, and the inclined plane at the bottom end of the middle inclined block can be in sliding connection with the right end of the building steel pipe.

7. The conveying device for sorting the construction steel pipes according to the diameters as claimed in claim 5, wherein: the air supply pipe is internally provided with a one-way valve, the air delivery pipe is internally provided with a one-way valve, the air outlet pipe is internally provided with a one-way valve, the input pipe is internally provided with a one-way valve, the output pipe is internally provided with a one-way valve, the inflation pipe is internally provided with a one-way valve, the contact switch controls the rear end of the electric sliding door, and the airflow pipe is internally provided with a one-way valve.

Technical Field

The invention relates to the related technical field of building steel pipes, in particular to a conveying device for sorting building steel pipes according to diameters.

Background

The construction steel pipe can be divided into seamless steel pipe and seam steel pipe according to seam and no seam. The seamed steel pipe is divided into a spiral steel pipe and a straight seam steel pipe according to the difference of welding seams, and the seamed steel pipe and the straight seam steel pipe are very commonly applied to the aspects of building piling, structure, steel structure, bearing, drainage and the like. The material mainly comprises carbon steel, stainless steel and alloy steel. Among them, carbon steel is most commonly used.

Building steel pipe in construction place can pile up each other when using, and the building steel pipe of different diameters mixes and has led to the fact great difficulty to the use of steel pipe together, needs the manual work to sort the transmission to the building steel pipe of different diameters, and the efficiency is low excessively and manual operation mistake easily appears, and the steel pipe is piled up and can be covered dust etc. on the surface in addition, is unfavorable for building steel pipe's use.

Disclosure of Invention

Aiming at the technical defects, the invention provides a conveying device for sorting building steel pipes according to diameters, which can overcome the defects.

The invention relates to a conveying device for sorting building steel pipes according to diameters, which comprises a box body, wherein a right conveying groove with a right opening and a right opening is formed in the right end of the box body, a left conveying groove with a right opening and a right opening is formed in the left end wall of the right conveying groove, a building steel pipe conveying mechanism is arranged at the bottom ends of the left conveying groove and the right conveying groove, a lower cylinder cavity is arranged on the upper side of the right conveying groove, a lower piston is connected in the lower cylinder cavity in a sliding mode, a left inclined block is fixedly arranged on the bottom surface of the lower piston, the bottom end of the left inclined block is positioned in the left conveying groove, the inclined plane at the bottom end of the left inclined block can be connected with the right end of a building steel pipe in a sliding mode, a gas pipe is fixedly arranged at the top end of the lower cylinder cavity, an upper cylinder cavity is fixedly arranged at the top end of the gas pipe, an air outlet pipe fixedly arranged, go up sliding connection and have the slider in the spout, communicating last through-hole about being provided with in the slider, go up the fixed plasticity gasket that is provided with in through-hole top, the slider top surface with go up through slider spring coupling between the spout, it is provided with the ascending telescopic tube groove of opening to go up the spout diapire, telescopic tube tank bottom surface with the flexible pipe of fixedly connected with between the slider bottom surface, flexible pipe bottom fixedly connected with input tube, input tube bottom and folding flexible gasbag fixed connection, folding flexible gasbag is fixed to be set up in the forward ejector pad spout rear end wall of opening, sliding connection has the ejector pad in the ejector pad spout, ejector pad rear end face with folding flexible gasbag fixed connection, right side transfer chute right-hand member is provided with letter sorting transmission channel device.

Preferably, the bottom surface of the lower piston is connected with the lower cylinder cavity through a lower piston spring, the top end of the lower cylinder cavity is fixedly provided with an air supply pipe which is led to the outside and is arranged on the left side of the air supply pipe, the upper cylinder cavity is connected with an upper piston in a sliding manner, the top surface of the upper piston is connected with the upper cylinder cavity through an upper piston spring, the rear end surface of the push block is connected with the push block chute through a push block spring, the rear end of the folding telescopic air bag is fixedly provided with an output pipe which is arranged on the lower side of the input pipe, the rear end of the output pipe is arranged in the lower chute, the lower chute is connected with a lower sliding block in a sliding manner, a lower through hole which is communicated with the front and the back is arranged in the lower sliding block, the front end of the lower through hole is fixedly provided with a lower plastic sealing sheet, the rear end, the left end of the hose is fixedly connected with the inflation tube, the left end of the inflation tube is provided with a wind blowing dust removal mechanism, the left end of the box body is fixedly provided with an input hopper, and the top surface of the input hopper is provided with an input hopper groove with an upward opening.

Preferably, the building steel pipe transmission mechanism evenly set up in about including twenty left transfer rollers in the left conveyer trough, left side transfer roller and left gear axle fixed connection, left side gear axle with the box rotates to be connected, the symmetrical left gear that is provided with of left side gear axle front and back end, evenly be provided with nine about the right conveyer trough and be located the middle transfer roller on left side transfer roller right side, middle transfer roller and middle gear axle fixed connection, middle gear axle front and back end symmetry fixed intermediate gear that is provided with, evenly be provided with six right transfer rollers that evenly set up about three groups around the right conveyer trough right-hand member, three around, the even right gear axle fixed connection of right transfer roller, right gear axle with the box rotates to be connected, right gear axle front and back end symmetry fixed right gear that is provided with, the rear side left gear, right gear, Rear side intermediate gear and rear side right side gear all sets up in the rear gear intracavity, the front side left side gear is located left gear intracavity, the front side intermediate gear and front side right side gear all is located right gear intracavity, and is adjacent left side gear intermediate gear with meshing between the right side gear is connected, the left side most left side left gear shaft rear end power is connected with the motor, a left side transfer roller intermediate transfer roller with right side transfer roller can transmit and be located above that the building steel pipe.

Preferably, the sorting and conveying channel device comprises a partition plate which is uniformly arranged between the upper end wall and the lower end wall of the right end of the right conveying groove in the front-back direction, the partition plate is rotationally connected with the right gear shaft, three right inclined blocks are uniformly arranged at the front and the back of the right end of the right conveying groove, the inclined plane at the bottom end of the right inclined block can be connected with the right end of the building steel pipe in a sliding way, the right inclined block is positioned in an inclined block sliding groove with a downward opening and is connected with the inclined block sliding groove in a sliding way, the top surface of the right sloping block is connected with the sloping block chute through a sloping block spring, the top end of the sloping block chute is provided with a contact switch, a front winding rod is fixedly arranged between the left end wall and the right end wall at the top end of the inclined block sliding groove, a pull rope is fixedly arranged on the top surface of the right inclined block, the pull rope is wound around the front winding rod and the rear winding rods symmetrically arranged in the left-right direction and fixedly connected with the rear end face of the lower sliding block, and the rear winding rods are fixedly arranged between the upper end wall and the lower end wall of the winding rod cavity.

Preferably, the wind blowing dust removal mechanism comprises an air bag fixedly connected with the top of the left end of the inflation tube, the air bag is arranged in the air bag cavity, a pressing block is connected in the air bag cavity in a sliding way, the top surface of the pressing block is connected with the air bag cavity through a pressing block spring, the top wall of the air bag cavity is fixedly provided with an electromagnet, the bottom end of the air bag is fixedly connected with an airflow pipe positioned at the front side of the inflation pipe, the bottom end of the airflow pipe is fixedly provided with a dust removal blowpipe which is positioned at the left end of the left conveying groove, the right end of the input hopper groove is provided with an electric sliding door which is connected with an electric sliding rail groove with a downward opening in a sliding way, the front end wall and the rear end wall of the electric sliding rail groove are symmetrically and fixedly provided with electric sliding rails, the electric sliding rails are in power sliding connection with the electric sliding door, and the electric sliding door can be connected with a circuit between the electromagnet and a power supply of the electromagnet.

Preferably, the front end face of the upper slider is fixedly connected with a supporting block, the supporting block is located in a supporting block sliding groove and is in sliding connection with the supporting block sliding groove, the top surface of the supporting block is connected with the supporting block sliding groove through a supporting block spring, the bottom surface of the supporting block is fixedly connected with a middle inclined block, the bottom end of the middle inclined block is located in the right conveying groove, and the inclined plane at the bottom end of the middle inclined block can be in sliding connection with the right end of the building steel pipe.

Preferably, a check valve is arranged in the air supply pipe, a check valve is arranged in the air delivery pipe, a check valve is arranged in the air outlet pipe, a check valve is arranged in the input pipe, a check valve is arranged in the output pipe, a check valve is arranged in the inflation pipe, the contact switch controls the rear end of the electric sliding door, and a check valve is arranged in the airflow pipe.

The beneficial effects are that: the device can sort and transmit the building steel pipes stacked on each other in a building place, can automatically sort and transmit the building steel pipes mixed together according to different diameters, is beneficial to the use of subsequent steel pipes, improves the use efficiency of the building steel pipes, does not need manpower to sort and transmit the building steel pipes with different diameters, automatically operates through simple operation, has higher efficiency and is not easy to cause errors in mechanical operation, can blow off dust and the like stacked and covered on the surfaces of the steel pipes by using wind, is convenient for the use of the building steel pipes, and protects the surfaces of the building steel pipes.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of a conveying device for sorting construction steel pipes according to diameters, according to the invention;

FIG. 2 is a schematic view of A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a schematic view of B-B in FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a schematic view of C-C in FIG. 1 according to an embodiment of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a conveying device for sorting building steel pipes according to diameters, which comprises a box body 10, wherein a right conveying groove 70 with a right opening is formed in the right end of the box body 10, a left conveying groove 77 with a right opening is formed in the left end wall of the right conveying groove 70, a building steel pipe conveying mechanism is arranged at the bottom ends of the left conveying groove 77 and the right conveying groove 70, a lower cylinder cavity 12 is arranged on the upper side of the right conveying groove 70, a lower piston 11 is connected in the lower cylinder cavity 12 in a sliding manner, a left inclined block 26 is fixedly arranged on the bottom surface of the lower piston 11, the bottom end of the left inclined block 26 is positioned in the left conveying groove 77, the inclined plane at the bottom end of the left inclined block 26 can be connected with the right end of a building steel pipe 25 in a sliding manner, a gas conveying pipe 14 is fixedly arranged at the top end of the lower cylinder cavity 12, an upper cylinder cavity 42 is fixedly arranged at the top end of the gas conveying pipe 14, an, an upper chute 67 with a forward opening is arranged at the bottom end of the air outlet pipe 46, an upper slide block 49 is connected in the upper chute 67 in a sliding manner, an upper through hole 66 which is communicated up and down is arranged in the upper slide block 49, an upper plastic sealing sheet 48 is fixedly arranged at the top end of the upper through hole 66, the top surface of the upper slide block 49 is connected with the upper chute 67 through an upper slide block spring 47, an expansion pipe groove 51 with an upward opening is arranged at the bottom wall of the upper chute 67, an expansion pipe 50 is fixedly connected between the bottom surface of the expansion pipe groove 51 and the bottom surface of the upper slide block 49, an input pipe 52 is fixedly connected at the bottom end of the expansion pipe 50, a folding expansion air bag 63 is fixedly connected at the bottom end of the input pipe 52, the folding expansion air bag 63 is fixedly arranged at the rear end wall of a push block chute 65 with a forward opening, a push, the right end of the right conveying groove 70 is provided with a sorting and conveying channel device.

Beneficially, the bottom surface of the lower piston 11 is connected with the lower cylinder cavity 12 through a lower piston spring 27, the top end of the lower cylinder cavity 12 is fixedly provided with an air supply pipe 13 which is led to the outside and is arranged on the left side of the air supply pipe 14, the upper cylinder cavity 42 is connected with an upper piston 45 in a sliding manner, the top surface of the upper piston 45 is connected with the upper cylinder cavity 42 through an upper piston spring 43, the rear end surface of the push block 64 is connected with the push block chute 65 through a push block spring 62, the rear end of the folding telescopic air bag 63 is fixedly provided with an output pipe 61 which is arranged on the lower side of the input pipe 52, the rear end of the output pipe 61 is arranged in the lower chute 53, the lower chute 53 is connected with a lower slide block 54 in a sliding manner, a lower through hole 59 which is communicated with the front and the back is arranged in the lower slide block 54, the front end of the lower through hole 59 is fixedly provided with a lower plastic, the rear end face of the lower sliding block 54 is fixedly provided with a hose 56, the left end of the hose 56 is fixedly connected with an inflation tube 36, the left end of the inflation tube 36 is provided with a wind blowing dust removal mechanism, the left end of the box body 10 is fixedly provided with an input hopper 30, and the top surface of the input hopper 30 is provided with an input hopper groove 29 with an upward opening.

Beneficially, the building steel pipe transmission mechanism comprises twenty left transmission rollers 78 which are uniformly arranged in the left transmission groove 77 from left to right, the left transmission rollers 78 are fixedly connected with a left gear shaft 79, the left gear shaft 79 is rotatably connected with the box body 10, left gears 80 are symmetrically and fixedly arranged at the front end and the rear end of the left gear shaft 79, nine middle transmission rollers 76 which are positioned at the right side of the left transmission rollers 78 are uniformly arranged in the right transmission groove 70 from left to right, the middle transmission rollers 76 are fixedly connected with the middle gear shaft 75, middle gears 68 are symmetrically and fixedly arranged at the front end and the rear end of the middle gear shaft 75, three groups of six right transmission rollers 71 which are uniformly arranged from left to right are uniformly arranged in the right transmission groove 70 from front to rear end, the front and the rear ends of the right transmission rollers 71 are fixedly connected with a right gear shaft 73, the right gear shaft 73 is rotatably connected with the box body 10, rear side left gear 80, rear side intermediate gear 68 and rear side right gear 74 all sets up in rear gear chamber 69, the front side left gear 80 is located left gear chamber 81, the front side intermediate gear 68 and front side right gear 74 all is located right gear chamber 82, adjacent left gear 80 intermediate gear 68 with the meshing is connected between the right gear 74, the leftmost side left gear 79 rear end power is connected with motor 37, left side transfer roller 78 intermediate transfer roller 76 with right side transfer roller 71 can transmit and be located above that building steel pipe 25.

Advantageously, the sorting and conveying channel device comprises a partition plate 72 uniformly arranged in front and back between the upper and lower end walls of the right end of the right conveying groove 70, the partition plate 72 is rotatably connected with the right gear shaft 73, three right oblique blocks 23 are uniformly arranged in front and back at the right end of the right conveying groove 70, the bottom end inclined surface of the right oblique block 23 can be slidably connected with the right end of the building steel pipe 25, the right oblique block 23 is positioned in the oblique block sliding groove 18 with a downward opening and is slidably connected with the same, the top surface of the right oblique block 23 is connected with the oblique block sliding groove 18 through an oblique block spring 22, the top end of the oblique block sliding groove 18 is provided with a contact switch 20, a front winding rod 19 is fixedly arranged between the left and right end walls at the top end of the oblique block sliding groove 18, the top surface of the right oblique block 23 is fixedly provided with a pull rope 21, one side of the pull rope 21 bypasses the front winding rod, the rear winding rod 57 is fixedly disposed between the upper and lower end walls of the winding rod chamber 58.

Beneficially, the air blowing and dust removing mechanism comprises an air bag 35 fixedly connected with the top of the left end of the inflation tube 36, the air bag 35 is arranged in an air bag cavity 40, a pressing block 41 is slidably connected in the air bag cavity 40, the top surface of the pressing block 41 is connected with the air bag cavity 40 through a pressing block spring 34, an electromagnet 33 is fixedly arranged on the top wall of the air bag cavity 40, an air flow tube 39 positioned on the front side of the inflation tube 36 is fixedly connected with the bottom end of the air bag 35, a dust removing blowing tube 38 is fixedly arranged at the bottom end of the air flow tube 39, the dust removing blowing tube 38 is positioned at the left end of the left conveying groove 77, an electric sliding door 28 is arranged at the right end of the input hopper groove 29, the electric sliding door 28 is slidably connected with an electric sliding rail groove 32 with a downward opening, electric sliding rails 31 are symmetrically and fixedly arranged on the front and rear end walls of the electric sliding, the power slide door 28 can be connected to the electrical circuit between the electromagnet 33 and its power supply.

Advantageously, a supporting block 17 is fixedly connected to the front end surface of the upper slider 49, the supporting block 17 is located in and slidably connected to a supporting block sliding groove 15, the top surface of the supporting block 17 is connected to the supporting block sliding groove 15 through a supporting block spring 16, a middle inclined block 24 is fixedly connected to the bottom surface of the supporting block 17, the bottom end of the middle inclined block 24 is located in the right conveying groove 70, and the inclined surface at the bottom end of the middle inclined block 24 can be slidably connected to the right end of the building steel pipe 25.

Beneficially, a check valve is arranged in the air supply pipe 13, a check valve is arranged in the air delivery pipe 14, a check valve is arranged in the air outlet pipe 46, a check valve is arranged in the input pipe 52, a check valve is arranged in the output pipe 61, a check valve is arranged in the inflation pipe 36, the contact switch 20 controls the rear end of the electric sliding door 28, and a check valve is arranged in the airflow pipe 39.

In an initial state, the upper slider spring 47, the telescopic tube 50, the folding telescopic air bag 63, the lower piston spring 27, the upper piston spring 43, the push block spring 62, the inclined block spring 22, the air bag 35, the press block spring 34 and the support block spring 16 are all in a normal stretching state, the upper plastic sealing sheet 48 and the lower plastic sealing sheet 60 are in a normal sealing state, and the lower slider spring 55 is in a compression state; sequence of mechanical actions of the whole device: 1. the motor 37 is actuated to rotate the leftmost left gear shaft 79 and thus the leftmost left gear shaft 79 and the leftmost left gear 80 to rotate the leftmost left gear 80 and thus the adjacent left gear 80 to rotate the adjacent left gear shaft 79 and the adjacent left transfer roller 78 to rotate the left transfer roller 78, the left gear shaft 79 and the left gear 80 sequentially from left to right to rotate the leftmost intermediate gear 68 and thus the leftmost intermediate transfer roller 76 and the leftmost intermediate gear shaft 75 to rotate the adjacent intermediate gear 68 and thus the adjacent intermediate transfer roller 76 and the adjacent intermediate gear shaft 75 to rotate the intermediate transfer roller 76, the intermediate gear shaft 75 and the intermediate gear 68 sequentially from left to right to rotate the leftmost right gear 74 and thus the leftmost three right transfer rollers 71 and the leftmost right gear shaft 73 to rotate, so that the adjacent right gear 74 is rotated, and the adjacent right conveying roller 71 and the adjacent right gear shaft 73 are rotated, so that the right conveying roller 71, the right gear shaft 73 and the right gear 74 are sequentially rotated from left to right, and the building steel pipe 25 is continuously conveyed from left to right; 2. the construction steel pipe 25 moves rightwards to be in sliding connection with the inclined plane at the bottom end of the left inclined block 26, so that the left inclined block 26 and the lower piston 11 move upwards by the distance of the diameter of the construction steel pipe 25, the gas quantity corresponding to the diameter of the construction steel pipe 25 is conveyed in the upper cylinder cavity 42 of the air conveying pipe 14, the upper piston 45 moves upwards by the distance of the gas corresponding to the diameter of the construction steel pipe 25, the construction steel pipe 25 continues moving rightwards, the construction steel pipe 25 is separated from the sliding connection with the left inclined block 26, the left inclined block 26 and the lower piston 11 move downwards under the reset action of the lower piston spring 27, the gas quantity output into the lower cylinder cavity 12 through the air supplementing pipe 13 is supplemented, the construction steel pipe 25 continues moving rightwards to be in sliding connection with the middle inclined block 24, the supporting block 17 and the upper slide block 49, the upper plastic sealing sheet 48 is deformed, and the air outlet pipe 46 is enabled, The upper through hole 66 and the extension tube 50 are communicated with the input tube 52, so that the upper piston 45 moves downwards under the reset action of the upper piston spring 43 to enable the gas quantity corresponding to the diameter of the building steel tube 25 stored in the upper cylinder cavity 42 to enter the folding and extending air bag 63 through the air outlet tube 46, the upper through hole 66, the extension tube 50 and the input tube 52, so that the push block 64 moves forwards by a distance corresponding to the gas corresponding to the diameter of the building steel tube 25, the push block 64 pushes the building steel tube 25 forwards to the upper side of the right conveying roller 71 corresponding to the diameter of the building steel tube, the building steel tube 25 continues to move rightwards on the right conveying roller 71 corresponding to the diameter of the building steel tube, and the middle inclined block 24, the support block 17 and the upper slide block 49 move downwards under the reset action of the support block spring 16 and the upper slide spring 47, so that; 3. the construction steel pipe 25 moves to the right end position of the right conveying roller 71 corresponding to the diameter of the construction steel pipe and is in sliding connection with the inclined plane at the bottom end of the right inclined block 23, so that the right inclined block 23 moves upwards, the pulling rope 21 is loosened to pull the lower sliding block 54, the lower sliding block 54 moves forwards under the reset action of the lower sliding block spring 55, the lower plastic sealing sheet 60 is deformed, the output pipe 61, the lower through hole 59 and the hose 56 are communicated with the inflation pipe 36, the push block 64 moves backwards under the reset action of the push block spring 62, so that the gas in the folded telescopic air bag 63 enters the air bag 35 through the output pipe 61, the lower through hole 59, the hose 56 and the inflation pipe 36, the right inclined block 23 moves upwards until the top end contacts the switch 20, the electric sliding rail 31 is started to move the electric sliding door 28 upwards, and the next construction steel pipe 25 input into the hopper groove 29 enters the upper side of the left conveying roller 78 in the left conveying groove, the electric sliding door 28 is connected with a circuit between the electromagnet 33 and a power supply thereof, so that the pressing block 41 is repelled to move downwards to press the air bag 35, the air flow is discharged through the air flow pipe 39 and the dust removal blowing pipe 38, dust and the like on the surface of the steel pipe are blown, the construction steel pipe 25 is completely conveyed out of the device, so that the right inclined block 23 moves downwards under the reset action of the inclined block spring 22, the contact switch 20 is separated from contact, the electric sliding door 28 moves downwards, the pull rope 21 pulls the lower sliding block 54 to move backwards, the lower plastic sealing sheet 60 is restored to the initial sealing state, the electromagnet 33 is disconnected, and the pressing block 41 moves upwards under the reset action of the pressing block spring 34; 4. when the device needs to reset, the motor 37 is turned off, so that all moving parts stop moving, all elastic elements play a reset role, the device completes resetting, the building steel pipes with different diameters are taken out, and the device completes resetting.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.