Metal roof multi-track material transportation device

Abstract

The invention belongs to the field of buildings, and particularly relates to a metal roof multi-track material transporting device which comprises a transporting trolley body, roof purlines, roof profiled steel sheets and gutter keels, the gutter keels and the roof profiled steel sheets are both installed on a metal roof, the roof purlines are installed on the surfaces of the roof profiled steel sheets, and the gutter keels are installed on the surfaces of the roof profiled steel sheets. The transportation trolley body is composed of a trolley frame, a trolley bottom frame and wheels, the wheels are connected to the trolley bottom frame through universal wheel devices, and the transportation trolley moves on the surfaces of roof purlines and roof profiled steel sheets through the wheels. The transportation trolley body achieves unlimited multi-rail transportation, covers the whole metal roof area, accelerates transportation of metal roof building materials, and meanwhile has the advantages of being simple in structure, easy to manufacture, flexible to use and the like.

Description

Technical Field

[0001] The invention belongs to the field of construction, in particular to a metal roof multi-track material transportation device. Background Art

[0002] During construction, conventional metal roofs have large spans, and it is troublesome to transport the construction materials hoisted onto the metal roofs. The transportation of high-altitude construction materials requires the coordinated handling of multiple people.

[0003] However, the high-altitude working surface is narrow, and it is difficult for an individual to walk alone at high altitudes, not to mention that it requires the cooperation of multiple people. At the same time, they have to carry weights and walk synchronously during the transportation process, which is extremely dangerous. This makes the transportation of metal roofing construction materials inefficient, the construction period long, and the risk high. There are also major safety hazards.

[0004] The existing roofing material transportation device has the following defects during use: the existing track-type building material transportation device has a simple structure, and its size and specifications are fixed, and it cannot be adjusted according to the actual situation on site, and it cannot effectively avoid the derailment of the transport trolley during use; moreover, when transporting metal roofing materials, it relies on single-point lifting by a car crane, which has restrictions on the lifting area and is costly and has poor maneuverability. It cannot be highly flexible and comfortable, and cannot be transported to the construction site, which has certain limitations.

[0005] To this end, the present invention provides a metal roof multi-track material transportation device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a metal roof multi-track material transport device described in the present invention comprises a transport trolley body, roof purlins, roof corrugated steel plates and gutter keels;

[0008] The gutter keel and the roof corrugated steel sheet are both installed on the metal roof, and the roof purlin is installed on the surface of the roof corrugated steel sheet;

[0009] The transport trolley body is composed of a trolley frame, a trolley bottom frame and wheels. The wheels are connected to the trolley bottom frame through a universal wheel device. The transport trolley moves on the surface of the roof purlins and the roof corrugated steel sheet through the wheels.

[0010] The wheel surface is provided with a positioning mechanism for positioning the wheel rotation angle;

[0011] The wheel surface is provided with a locking mechanism for fixing the wheel.

[0012] The universal wheel device includes a connecting iron sheet, which is welded to the surface of the bottom frame of the trolley. A connecting shaft is welded to the end of the connecting iron sheet away from the bottom frame of the trolley. One end of the connecting shaft is fixedly connected to a bearing. The connecting shaft is rotatably connected to a reinforcing iron sheet through the bearing. One side of the reinforcing iron sheet is fixedly connected to a support frame, and the support frame is a "U"-shaped iron sheet. The wheel is mounted on the support frame by bolts.

[0013] The wheel consists of a tread and a wheel rim, and the wheel contacts the roof purlin and the roof corrugated steel plate through the tread.

[0014] The locking mechanism includes a bottom block, the bottom block is installed on the surface of the reinforcing iron sheet, a rotating shaft is movably installed in the bottom block, a cavity is opened in the bottom block, a limiting groove is opened on the inner wall of the cavity, a reel is rotatably connected in the limiting groove, a pull rope is fixedly connected to the surface of the reel, the rotating shaft passes through the bottom block and is connected to the reel, a plurality of slots are opened on the surface of the reel, a plug rod is slidably connected to the surface of the bottom block through a spring, an arc angle is opened on the surface of the plug rod, an empty groove is opened on the surface of the support frame, a slider is slidably connected to the empty groove through a spring, the slider is "L" shaped, and a fixed block is fixedly connected to the surface of the long arm end of the slider, a fixing hole is opened on the surface of the wheel rim relative to the position of the fixed block, and a connecting rope is fixedly connected to the end of the short arm end of the slider, and the connecting rope is fixedly connected to the pull rope.

[0015] The sliding blocks are provided with two and are symmetrically distributed with respect to the central axis of the wheel. The fixing holes are through holes and are provided with a plurality of them.

[0016] The inner wall of the empty groove is rotatably connected with a rotating wheel for guiding the connecting rope.

[0017] The positioning mechanism includes a sliding shaft, the end of the rotating shaft passes through the bottom block and is fixedly connected to the sliding shaft, the surface of the connecting shaft is provided with a groove, an arc plate is slidably connected to the groove, the surface of the arc plate is fixedly connected to a sleeve shaft, a top block is threadedly connected to the sleeve shaft, the end of the top block is slidably connected to the clamping shaft through a spring, the surface of the groove is provided with a clamping groove, the clamping groove is provided with at least four and are equidistantly distributed, one end of the top block away from the clamping shaft is fixedly connected with a protrusion, the surface of the sliding shaft is provided with a notch relative to the position of the protrusion, the surface of the rotating shaft is fixedly connected with a clamping block, the surface of the reel is provided with a notch corresponding to the clamping block, a spring is provided on one side of the reel, the surface of the rotating shaft is fixedly connected with a fixing ring, one side of the fixing ring is fixedly connected with a spring, and one end of the spring away from the fixing ring is fixedly connected to the inner wall of the cavity.

[0018] The end of the insertion rod is fixedly connected with a pull ring.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The metal roof multi-track material transport device described in the present invention realizes unlimited multi-track transport of the transport trolley body through the design of gutter keels, roof corrugated steel plates and roof purlins, covers the entire metal roof area, and speeds up the transportation of metal roof building materials. At the same time, this transport device has the advantages of simple structure, easy manufacture, and flexible transportation.

[0021] 2. The metal roof multi-track material transport device described in the present invention drives the fixing block to be inserted into the fixing hole through the slider to fix the wheel rim, thereby locking the wheel to prevent the transport trolley body from sliding freely when loading and unloading goods, thereby affecting the loading and unloading of goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is an overview of the position of the transport trolley body in the first embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the position of the transport trolley body on the roof corrugated steel sheet in the first embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the transport trolley body in the first embodiment of the present invention at the position of the roof purlin;

[0026] Figure 4 is a schematic diagram of the wheel installation position in the first embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of a partial cross-sectional structure of a wheel in Embodiment 1 of the present invention;

[0028] Figure 6 is the first embodiment of the present invention Figure 5 Schematic diagram of the structure at A in the middle;

[0029] Figure 7 is the first embodiment of the present invention Figure 5 Schematic diagram of the structure at B in the middle;

[0030] Figure 8 is a schematic diagram of the support frame structure in Embodiment 1 of the present invention;

[0031] Fig. 9 is the first embodiment of the present invention Figure 8 Schematic diagram of the structure at C in the middle;

[0032] Fig.10 It is a schematic diagram of a pull ring in the second embodiment of the present invention.

[0033] In the figure: 1. transport trolley body; 2. trolley frame; 3. trolley bottom frame; 4. wheels; 5. roof purlins; 6. roof corrugated steel sheets; 7. connecting iron sheets; 8. connecting shafts; 9. bearings; 10. reinforcing iron sheets; 11. supporting frames; 12. wheel rims; 13. treads; 14. bolts; 15. gutter keels; 16. bottom blocks; 17. rotating shafts; 18. sliding shafts; 19. bumps; 20. Top block; 21. Sleeve shaft; 22. Arc plate; 23. Clamp shaft; 24. Clamp slot; 25. Groove; 26. Clamp block; 27. Reel; 28. Fixing ring; 29. ​​Slot; 30. Insert rod; 31. Fixing block; 32. Fixing hole; 33. Slider; 34. Pull rope; 35. Rotating wheel; 36. Empty slot; 37. Connecting rope; 38. Pull ring; 39. Cavity; 40. Limiting slot. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] Embodiment 1:

[0036] like Figures 1 to 9 As shown, a metal roof multi-track material transport device according to an embodiment of the present invention comprises a transport trolley body 1, roof purlins 5, roof corrugated steel sheets 6 and gutter keels 15;

[0037] The gutter keel 15 and the roof corrugated steel sheet 6 are both installed on the metal roof, and the roof purlin 5 is installed on the surface of the roof corrugated steel sheet 6;

[0038] The transport trolley body 1 is composed of a trolley frame 2, a trolley bottom frame 3 and wheels 4. The wheels 4 are connected to the trolley bottom frame 3 through a universal wheel device. The transport trolley moves on the surface of the roof purlin 5 and the roof corrugated steel sheet 6 through the wheels 4.

[0039] The surface of the wheel 4 is provided with a positioning mechanism for positioning the rotation angle of the wheel 4;

[0040] The surface of the wheel 4 is provided with a locking mechanism for fixing the wheel 4;

[0041] During operation, after the metal roof is installed by welding or screwing, the roof corrugated steel sheet 6 is mechanically corrugated to make the roof corrugated steel sheet 6 have a protruding wave height track, and then the roof corrugated steel sheet 6 is installed on the metal roof by bolts 14 or welding. After the roof corrugated steel sheet 6 is installed, the roof purlin 5 is installed on the roof corrugated steel sheet 6, and the roof corrugated steel sheets 6 are connected by the gutter keel 15. Finally, the transport trolley body 1 is erected on the gutter keel 15 through the wheels 4. The transport trolley is welded by the trolley frame 2 and the trolley bottom frame 3. Because the trolley frame 2 and the trolley bottom frame 3 are both square steel, the length of the trolley frame 2 and the trolley bottom frame 3 can be flexibly selected according to the width of the gutter keel 15. Because the wheels 4 are installed on the trolley bottom frame 3 through the universal wheel device, The transport trolley body 1 can transport building materials horizontally in the longitudinal and transverse directions. During transportation, the roof building materials are placed on the transport trolley body 1, and the transport trolley body 1 is pushed to transport the roof building materials from the gutter keel 15 track to the roof corrugated steel plates 6 or roof purlins 5 on both sides of the gutter keel 15, and then accurately transported to the construction site, so that the transport trolley body 1 can realize unlimited multi-track transportation, covering the entire metal roof area, and speeding up the transportation of metal roof building materials. This transportation device has a simple structure, is easy to make, and is flexible to transport. At the same time, the positioning mechanism can be used to achieve positioning when the wheel 4 rotates, so that it is convenient for the staff to adjust the rotation angle of the wheel 4. The locking mechanism can fix the wheel 4 to avoid the transport trolley body 1 sliding randomly during loading and unloading, which is inconvenient for loading and unloading.

[0042] The universal wheel device includes a connecting iron sheet 7, which is welded to the surface of the bottom frame 3 of the trolley. A connecting shaft 8 is welded to one end of the connecting iron sheet 7 away from the bottom frame 3 of the trolley. A bearing 9 is fixedly connected to one end of the connecting shaft 8. The connecting shaft 8 is rotatably connected to a reinforcing iron sheet 10 through the bearing 9. A support frame 11 is fixedly connected to one side of the reinforcing iron sheet 10. The support frame 11 is a "U"-shaped iron sheet. The wheel 4 is mounted on the support frame 11 through bolts 14. The wheel 4 consists of a tread 13 and a wheel rim 12. The wheel 4 contacts the roof purlin 5 and the roof corrugated steel plate 6 through the tread 13.

[0043] During operation, the trolley wheel 4 is installed on the surface of the support frame 11 by bolts 14, and then the reinforcing iron sheet 10 is welded to the support frame 11, the connecting iron sheet 7 is welded to the surface of the trolley bottom frame 3, and the connecting shaft 8 is welded to the connecting iron sheet 7. Finally, the connecting shaft 8 is connected to the reinforcing iron sheet 10 through the bearing 9 to complete the installation of the wheel 4. The wheel 4 is made of steel, and the tread 13 is used for the contact of the track composed of the roof purlin 5, the roof corrugated steel plate 6 and the gutter keel 15, and the tread 13 is larger than the width of the track, so that the transport trolley body 1 can better travel on the track, and at the same time, the wheel 4 of the transport trolley can rotate 360°, when the gutter keel 15. After the roof corrugated steel sheet 6 and the roof purlin 5 are installed, the transport trolley body 1 can use the wide side frame to travel on the gutter keel 15 and the roof purlin 5 to transport the roof building materials, and the long side frame of the transport trolley body 1 can travel on the wave height track of the roof corrugated steel sheet 6 to transport the roof building materials, thereby realizing the interchange of the position of the transport trolley body 1 between the two structures, which is very convenient. The wheel rim 12 of the wheel 4 is the outer part of the two ends of the tread 13. Its function is to guide and prevent the transport trolley body 1 from derailing, which can effectively avoid the derailment of the transport trolley body 1 during transportation and ensure the personal safety of employees.

[0044] The locking mechanism includes a bottom block 16, which is mounted on the surface of the reinforcing iron sheet 10, a rotating shaft 17 is movably mounted in the bottom block 16, a cavity 39 is provided in the bottom block 16, a limiting groove 40 is provided on the inner wall of the cavity 39, a reel 27 is rotatably connected in the limiting groove 40, a pull rope 34 is fixedly connected to the surface of the reel 27, the rotating shaft 17 passes through the bottom block 16 and is connected to the reel 27, a plurality of slots 29 are provided on the surface of the reel 27, a plug rod 30 is slidably connected to the surface of the bottom block 16 through a spring, a circular arc angle is provided on the surface of the plug rod 30, and a cavity is provided on the surface of the support frame 11 A slider 33 is slidably connected to the slot 36 through a spring, the slider 33 is "L" shaped, and a fixing block 31 is fixedly connected to the surface of the long arm end of the slider 33, a fixing hole 32 is provided on the surface of the wheel rim 12 relative to the fixing block 31, a connecting rope 37 is fixedly connected to the end of the short arm end of the slider 33, and the connecting rope 37 is fixedly connected to the pull rope 34, two sliders 33 are provided, and are symmetrically distributed with respect to the central axis of the wheel 4, the fixing holes 32 are through holes, and a plurality of the fixing holes 32 are provided, and a rotating wheel 35 is rotatably connected to the inner wall of the slot 36 for guiding the connecting rope 37;

[0045] When working, by rotating the rotating shaft 17, the rotating shaft 17 drives the reel 27 to rotate, so that the rotating shaft 17 reels in the pull rope 34, and at the same time the pull rope 34 pulls the connecting rope 37 to move. The connecting rope 37 is guided by the rotating wheel 35, which can prevent the connecting rope 37 from scratching the side wall of the empty groove 36 to reduce wear. While the connecting rope 37 is reeled in, it will pull the slider 33 to move and squeeze the spring to generate elastic force. At the same time, the slider 33 drives the fixing block 31 to fit into the fixing hole 32 to fix the wheel rim 12, thereby locking the wheel 4 to prevent the transport trolley body 1 from sliding at will during loading and unloading of goods, thereby affecting the loading and unloading of goods. When the reel 27 rotates, the slot 29 on the surface of the reel 27 will squeeze the fillet of the surface of the insertion rod 30, causing the insertion rod 30 to slide upward. After the slot 29 passes through, the insertion rod 30 is reset under the drive of the spring, and the reel 27 is positioned to prevent reversal.

[0046] The positioning mechanism includes a sliding shaft 18, the end of the rotating shaft 17 passes through the bottom block 16 and is fixedly connected to the sliding shaft 18, a groove 25 is provided on the surface of the connecting shaft 8, an arc plate 22 is slidably connected in the groove 25, a sleeve shaft 21 is fixedly connected on the surface of the arc plate 22, a top block 20 is threadedly connected in the sleeve shaft 21, and a clamping shaft 23 is slidably connected to the end of the top block 20 through a spring, and a clamping groove 24 is provided on the surface of the groove 25, and at least four of the clamping grooves 24 are provided and are equidistantly distributed. The end of the top block 20 away from the clamping shaft 23 is fixedly connected to the protrusion 19, the surface of the sliding shaft 18 is provided with a notch relative to the position of the protrusion 19, the surface of the rotating shaft 17 is fixedly connected to the clamping block 26, the surface of the reel 27 is provided with a notch corresponding to the clamping block 26, one side of the reel 27 is provided with a spring, the surface of the rotating shaft 17 is fixedly connected to the fixing ring 28, one side of the fixing ring 28 is fixedly connected to the spring, and the end of the spring away from the fixing ring 28 is fixedly connected to the inner wall of the cavity 39;

[0047] During operation, the rotating shaft 17 is pressed toward the direction of the sleeve shaft 21, so that the rotating shaft 17 drives the sliding shaft 18 to move, and at the same time, the rotating shaft 17 drives the clamping block 26 to disengage from the corresponding notch, so that the rotating shaft 17 cannot drive the reel 27 to rotate. While the rotating shaft 17 slides, the protrusion 19 on the surface of the top block 20 is clamped into the corresponding notch at the end of the sliding shaft 18. At this time, the rotating shaft 17 is rotated, so that the rotating shaft 17 drives the top block 20 to rotate, and through the guidance of the thread, the top block 20 drives the clamping shaft 23 to clamp into the clamping groove 24, and the rotation angle of the wheel 4 is adjusted. Fix, then release the rotating shaft 17, the spring drives the rotating shaft 17 to reset, and makes the clamping block 26 clamped in the slot, so that the rotating shaft 17 can drive the reel 27 to achieve winding and unwinding. When the restriction needs to be lifted, by reversing the rotating shaft 17, the top block 20 drives the clamping shaft 23 away from the clamping slot 24, but the arc angle part of the surface of the clamping shaft 23 will remain in the clamping slot 24. At this time, when the connecting shaft 8 is rotated, the clamping shaft 23 will achieve the effect of the positioning ball spring, and at the same time, with the clamping slots 24 opened at equal intervals, it can assist the staff to rotate the wheel 4 to the required angle.

[0048] Embodiment 2:

[0049] like Fig.10 As shown, compared with Example 1, another embodiment of the present invention is that: a pull ring 38 is fixedly connected to the end of the insertion rod 30; during operation, the insertion rod 30 can be pulled more conveniently through the pull ring 38 to rotate the shaft 17.

[0050] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-track material transport device for metal roofing, characterized in that: It comprises a transport trolley body (1), roof purlins (5), roof corrugated steel plates (6) and gutter keels (15); The gutter keel (15) and the roof corrugated steel sheet (6) are both installed on the metal roof, and the roof purlin (5) is installed on the surface of the roof corrugated steel sheet (6); The transport trolley body (1) is composed of a trolley frame (2), a trolley bottom frame (3) and wheels (4); the wheels (4) are connected to the trolley bottom frame (3) via a universal wheel device, and the transport trolley moves on the surface of the roof purlins (5) and the roof corrugated steel sheet (6) via the wheels (4); The surface of the wheel (4) is provided with a positioning mechanism for positioning the rotation angle of the wheel (4); The surface of the wheel (4) is provided with a locking mechanism for fixing the wheel (4).

2. A metal roof multi-track material transport device according to claim 1, characterized in that: The universal wheel device comprises a connecting iron sheet (7), wherein the connecting iron sheet (7) is welded to the surface of the trolley bottom frame (3), a connecting shaft (8) is welded to one end of the connecting iron sheet (7) away from the trolley bottom frame (3), one end of the connecting shaft (8) is fixedly connected to a bearing (9), the connecting shaft (8) is rotatably connected to a reinforcing iron sheet (10) through the bearing (9), one side of the reinforcing iron sheet (10) is fixedly connected to a support frame (11), the support frame (11) is a "U"-shaped iron sheet, and the wheel (4) is mounted on the support frame (11) by bolts (14).

3. A metal roof multi-track material transport device according to claim 2, characterized in that: The wheel (4) is composed of a tread (13) and a wheel rim (12), and the wheel (4) is in contact with the roof purlin (5) and the roof corrugated steel plate (6) through the tread (13).

4. A metal roof multi-track material transport device according to claim 3, characterized in that: The locking mechanism comprises a bottom block (16), the bottom block (16) is mounted on the surface of the reinforcing iron sheet (10), a rotating shaft (17) is movably mounted in the bottom block (16), a cavity (39) is provided in the bottom block (16), a limiting groove (40) is provided on the inner wall of the cavity (39), a reel (27) is rotatably connected in the limiting groove (40), a pull rope (34) is fixedly connected to the surface of the reel (27), the rotating shaft (17) passes through the bottom block (16) and is connected to the reel (27), a plurality of slots (29) are provided on the surface of the reel (27), and the surface of the bottom block (16) is provided with a plurality of slots (29). A spring is slidably connected to an insertion rod (30), a circular arc angle is provided on the surface of the insertion rod (30), a hollow groove (36) is provided on the surface of the support frame (11), a slider (33) is slidably connected to the hollow groove (36) via a spring, the slider (33) is "L"-shaped, and a fixed block (31) is fixedly connected to the surface of the long arm end of the slider (33), a fixing hole (32) is provided on the surface of the wheel rim (12) at a position relative to the fixed block (31), and a connecting rope (37) is fixedly connected to the end of the short arm end of the slider (33), and the connecting rope (37) is fixedly connected to the pull rope (34).

5. A metal roof multi-track material transport device according to claim 4, characterized in that: The sliding blocks (33) are provided in two numbers and are symmetrically distributed with respect to the central axis of the wheel (4); the fixing holes (32) are through holes and are provided in plurality.

6. A metal roof multi-track material transport device according to claim 5, characterized in that: The inner wall of the empty slot (36) is rotatably connected to a rotating wheel (35) for guiding the connecting rope (37).

7. A metal roof multi-track material transport device according to claim 6, characterized in that: The positioning mechanism comprises a sliding shaft (18), the end of the rotating shaft (17) passes through the bottom block (16) and is fixedly connected to the sliding shaft (18), a groove (25) is provided on the surface of the connecting shaft (8), an arc plate (22) is slidably connected in the groove (25), a sleeve shaft (21) is fixedly connected on the surface of the arc plate (22), a top block (20) is threadedly connected in the sleeve shaft (21), an end of the top block (20) is slidably connected to a clamping shaft (23) via a spring, a clamping groove (24) is provided on the surface of the groove (25), and at least four of the clamping grooves (24) are provided and are equidistantly spaced. The top block (20) is fixedly connected to one end of the top block (20) away from the clamping shaft (23), a notch is provided on the surface of the sliding shaft (18) at a position relative to the notch (19), a clamping block (26) is fixedly connected to the surface of the rotating shaft (17), a notch corresponding to the clamping block (26) is provided on the surface of the reel (27), a spring is provided on one side of the reel (27), a fixing ring (28) is fixedly connected to the surface of the rotating shaft (17), a spring is fixedly connected to one side of the fixing ring (28), and an end of the spring away from the fixing ring (28) is fixedly connected to the inner wall of the cavity (39).

8. A metal roof multi-track material transport device according to claim 7, characterized in that: A pull ring (38) is fixedly connected to the end of the insertion rod (30).

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