Dual fuel pipe stacking rack

Abstract

The present invention relates to the field of tire frame technology, and discloses a dual-fuel pipe sheet stacking tire frame, comprising: an upper carrier and a lower carrier, one side of the upper carrier and one side of the lower carrier are both installed with a connecting beam, one side of the connecting beam is integrally connected with an insert, the inner wall of the insert is installed with an external protective tube, the side of the upper carrier close to the connecting beam and the side of the lower carrier close to the connecting beam are both integrally connected with a mounting column, and the side of the upper carrier away from the mounting column and the side of the lower carrier away from the mounting column are both integrally connected with a connecting column. The dual-fuel pipe sheet stacking tire frame can be unfolded as a welding bearing platform for dual-fuel pipe sheets after the external protective tube is removed, and can also be used as a temporary stacking bracket for dual-fuel pipe sheets after the external protective tube is plugged in, thereby increasing the functionality of the device, being able to be folded when the device is stored, reducing the floor space, and improving space utilization.

Description

Technical Field

[0001] The invention relates to the technical field of tire racks, in particular to a tire rack for stacking dual-fuel pipe sheets. Background Art

[0002] The tire frame is a mold, which refers to the scaffolding that mainly bears the load and force. It is a special process equipment for facilitating the assembly and welding of mechanical equipment. It is widely used in formwork engineering, steel structure installation engineering, and bridge engineering. Different from the commonly used single and double row scaffolding, the design of the tire frame varies greatly due to the great difference in the structural form and weight of the support. Different equipment and different processes have different forms of tire frames.

[0003] When welding the dual fuel pipe segments, a tire frame is required for carrying and temporarily stacking. The general tire frame is large in size and cannot be folded, so it occupies a large space when stored, is inconvenient to move, and has poor flexibility. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a dual-fuel pipe sheet stacking tire rack, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: a dual-fuel tube sheet stacking tire rack, comprising: an upper carrier and a lower carrier, one side of the upper carrier and one side of the lower carrier are both installed with a connecting beam, one side of the connecting beam is integrally connected with a plug, the inner wall of the plug is installed with an external protective tube, the side of the upper carrier close to the connecting beam and the side of the lower carrier close to the connecting beam are both integrally connected with a mounting column, the side of the upper carrier away from the mounting column and the side of the lower carrier away from the mounting column are both integrally connected with a connecting column, the outer wall of the connecting column is rotatably connected with a connecting block, the side of the lower carrier away from the connecting beam is fixedly connected with the mounting block, The inner wall of the mounting block is rotatably connected to a threaded rod, the outer wall of the threaded rod is fixedly sleeved with a rotating cylinder, a limited gear is provided at the end of the rotating cylinder away from the connecting block, a plug hole is penetrated through the outer wall of the rotating cylinder, and a toggle handle is movably inserted into the inner wall of the plug hole, a fixed support block is provided on the side of the lower bearing frame close to the threaded rod, a moving support block is slidably connected to the side of the lower bearing frame close to the threaded rod, a threaded cylinder is installed on the inner wall of the moving support block, a roller folding mechanism is provided on the side of the lower bearing frame close to the threaded rod, a buffer mechanism is provided between the upper bearing frame and the lower bearing frame, and a limited reversing mechanism is provided on the side of the lower bearing frame close to the threaded rod.

[0006] Preferably, the roller folding mechanism includes a first support rod, a second support rod and a roller, the first support rod is rotatably connected to the inner wall of the fixed support block, the second support rod is rotatably connected to the inner wall of the dynamic support block, the roller is rotatably connected to an end of the second support rod away from the dynamic support block, and an end of the second support rod away from the dynamic support block is rotatably connected to an end of the first support rod away from the fixed support block.

[0007] Preferably, the buffer mechanism includes a piston rod, a piston cylinder, a piston and a sealing ring, the piston rod is rotatably connected to the side of the upper support frame close to the insertion tube through a mounting column, the piston cylinder is rotatably connected to the side of the lower support frame close to the insertion tube through a mounting column, the piston is fixedly sleeved on the outer wall of the piston rod, and the outer wall of the piston is slidably connected to the inner wall of the piston cylinder, the sealing ring is fitted to the inner wall of the piston cylinder, and the inner wall of the sealing ring is slidably connected to the outer wall of the piston rod.

[0008] Preferably, the buffer mechanism also includes a dust ring and a liquid channel, the dust ring is attached to the inner wall of the piston cylinder, and the inner wall of the dust ring is slidably connected to the outer wall of the piston rod, the liquid channel passes through the inner wall of the piston cylinder, and one end of the liquid channel is located on one side of the piston, and the other end of the liquid channel is located on the other side of the piston, and the interior of the piston cylinder is filled with hydraulic oil.

[0009] Preferably, the limit reversing mechanism includes a fixed block, a threaded column and a limit block, the fixed block is fixedly connected to one side of the lower support frame, and the fixed block is located below the limit gear, the threaded column is rotatably connected to the inner wall of the fixed block, the limit block is rotatably connected to the top of the fixed block, and the limit block is meshingly connected to the limit gear.

[0010] Preferably, the limit reversing mechanism also includes a spring, a sliding mouth, a slider and a torsion wheel, the spring is fixedly connected to the top of the fixed block, and the surface of the spring is slidably connected to one side of the limit block, the sliding mouth is penetrated through the surface of the fixed block, the slider is slidably connected to the inner wall of the sliding mouth, and threaded holes are penetrated on both sides of the slider, and the inner wall of the threaded hole is provided with a first internal thread, the outer wall of the threaded column is provided with a first external thread, and the threaded hole is threadedly connected to the threaded column through the first internal thread and the first external thread, and the torsion wheel is fixedly sleeved on the outer wall of the threaded column.

[0011] Preferably, a meshing gear is fixedly sleeved on the outer wall of the connecting column, and the number of the meshing gears is four, and every two meshing gears form a group, and each group of meshing gears are meshed and connected.

[0012] Preferably, a fixing column is provided on one side of the lower supporting frame, the fixed support block is fixedly connected to the lower supporting frame via the fixing column, movable holes are penetrated on both sides of the fixed support block, and the inner wall of the movable hole is slidably connected to the outer wall of the threaded rod.

[0013] Preferably, the inner wall of the threaded barrel is provided with a second internal thread, the outer wall of the threaded rod is provided with a second external thread, and the threaded barrel is threadedly connected to the threaded rod via the second internal thread and the second external thread.

[0014] Preferably, the external protective tube is slidably connected to the inner wall of the cannula.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The dual-fuel pipe piece stacking frame can be unfolded as a welding bearing platform for the dual-fuel pipe pieces after the external protective pipe is removed, and can be used as a temporary stacking bracket for the dual-fuel pipe pieces after the external protective pipe is inserted, by means of an upper bearing frame, a lower bearing frame, a connecting beam, a plug pipe, an external protective pipe, a mounting column, a connecting column, a connecting block, a mounting block, a threaded rod, a rotating drum, a limit gear, a toggle handle, a fixed support block, a movable support block, a threaded drum, a roller folding mechanism and a buffer mechanism, so that the device can be unfolded as a welding bearing platform for the dual-fuel pipe pieces after the external protective pipe is removed, and can be used as a temporary stacking bracket for the dual-fuel pipe pieces after the external protective pipe is inserted, thereby increasing the functionality of the device, being able to be folded when the device is stored, reducing the floor space and improving the space utilization rate.

[0017] 2. The dual-fuel tube sheet stacking tire rack, through the lower bearing frame, threaded rod, fixed support block, movable support block, roller folding mechanism and limit reversing mechanism, can control the folding and unfolding of the roller folding mechanism by rotating the threaded rod, so that the roller folding mechanism can be unfolded when the device is moved, and the roller auxiliary device can be moved, thereby improving the flexibility of the device. At the same time, the limit reversing mechanism can be used to control the limit direction of the rotating drum, so as to assist the unidirectional rotation of the rotating drum.

[0018] 3. The dual-fuel pipe stacking frame can utilize the hydraulic oil inside the buffer mechanism for buffering by providing an upper carrier, a lower carrier and a buffer mechanism, so as to avoid sudden collision when the upper carrier and the lower carrier are unfolded or folded, reduce the noise when the device is unfolded and folded, and improve the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure between the threaded rod and the dynamic support block of the present invention;

[0022] Figure 4 It is a schematic diagram of the connection structure between the limiting gear and the limiting block of the present invention;

[0023] Figure 5 It is a side sectional view of the position limiting and reversing mechanism of the present invention;

[0024] Figure 6 It is a side sectional view of the buffer mechanism of the present invention;

[0025] Figure 7 It is a schematic diagram of the internal structure of the roller folding mechanism of the present invention;

[0026] Figure 8 For the present invention Figure 1 Enlarged view of point A in the middle.

[0027] In the figure: 1, upper bearing frame; 2, lower bearing frame; 3, connecting beam; 4, inserting pipe; 5, external protection pipe; 6, mounting column; 7, connecting column; 8, connecting block; 9, mounting block; 10, threaded rod; 11, rotating drum; 12, limiting gear; 13, toggle handle; 14, fixed support block; 15, moving support block; 16, threaded drum; 17, roller folding mechanism; 1701, first support rod; 1702, second support rod; 1703, Roller; 18. Buffer mechanism; 1801. Piston rod; 1802. Piston cylinder; 1803. Piston; 1804. Sealing ring; 1805. Dust ring; 1806. Liquid channel; 19. Limiting and reversing mechanism; 1901. Fixed block; 1902. Threaded column; 1903. Limiting block; 1904. Reed; 1905. Sliding mouth; 1906. Sliding block; 1907. Torsion wheel; 20. Meshing gear; 21. Movable hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-8The dual-fuel pipe sheet stacking tire rack comprises: an upper carrier 1 and a lower carrier 2, a connecting beam 3 is installed on one side of the upper carrier 1 and one side of the lower carrier 2, a plug 4 is integrally connected to one side of the connecting beam 3, an external protective tube 5 is installed on the inner wall of the plug 4, a mounting column 6 is integrally connected to one side of the upper carrier 1 close to the connecting beam 3 and a mounting column 6 is integrally connected to one side of the lower carrier 2 close to the connecting beam 3, a connecting column 7 is integrally connected to one side of the upper carrier 1 away from the mounting column 6 and a connecting column 7 is integrally connected to the outer wall of the connecting column 7. The lower carrier frame 2 is fixedly connected to a mounting block 9 on one side away from the connecting beam 3. The inner wall of the mounting block 9 is rotatably connected to a threaded rod 10. The outer wall of the threaded rod 10 is fixedly sleeved with a rotating drum 11. A limited gear 12 is arranged at one end of the rotating drum 11 away from the connecting block 8. A plug hole is penetrated through the outer wall of the rotating drum 11, and a toggle handle 13 is movably inserted into the inner wall of the plug hole. There are eight plug holes, and every two plug holes form a group. The four groups of plug holes are symmetrical with the central axis of the rotating drum 11 as the symmetry axis, so that the rotating drum 11 can be rotated by using the toggle handle 13. A fixed support block 14 is provided on the side of the carrier frame 2 close to the threaded rod 10, a movable support block 15 is slidably connected to the side of the lower carrier frame 2 close to the threaded rod 10, a threaded cylinder 16 is installed on the inner wall of the movable support block 15, a roller folding mechanism 17 is provided on the side of the lower carrier frame 2 close to the threaded rod 10, a buffer mechanism 18 is provided between the upper carrier frame 1 and the lower carrier frame 2, and a limited position reversing mechanism 19 is provided on the side of the lower carrier frame 2 close to the threaded rod 10. The column 6, the connecting column 7, the connecting block 8, the mounting block 9, the threaded rod 10, the rotating cylinder 11, the limit gear 12, the toggle handle 13, the fixed support block 14, the moving support block 15, the threaded cylinder 16, the roller folding mechanism 17 and the buffer mechanism 18 can unfold the device as a welding bearing platform for the dual-fuel pipe pieces after the external protective tube 5 is removed, and can also be used as a temporary stacking bracket for the dual-fuel pipe pieces after the external protective tube 5 is plugged in, thereby increasing the functionality of the device and being able to be folded when the device is stored, thereby reducing the floor space and improving the space utilization rate.

[0030] Among them; the roller folding mechanism 17 includes a first support rod 1701, a second support rod 1702 and a roller 1703, the first support rod 1701 is rotatably connected to the inner wall of the fixed support block 14, the second support rod 1702 is rotatably connected to the inner wall of the movable support block 15, the roller 1703 is rotatably connected to the end of the second support rod 1702 away from the movable support block 15, and the end of the second support rod 1702 away from the movable support block 15 is rotatably connected to the end of the first support rod 1701 away from the fixed support block 14, through the lower carrier 2, threaded rod 10, fixed support block 14, movable support block 15, roller folding mechanism 17 and limit reversing mechanism 19, the folding and unfolding of the roller folding mechanism 17 can be controlled by rotating the threaded rod 10, so that the roller folding mechanism 17 can be unfolded when the device is moved, and the roller 1703 is used to assist the device in moving, thereby improving the flexibility of the device.

[0031] Among them; the buffer mechanism 18 includes a piston rod 1801, a piston cylinder 1802, a piston 1803 and a sealing ring 1804. The piston rod 1801 is rotatably connected to the side of the upper support frame 1 close to the insertion tube 4 through the mounting column 6, and the piston cylinder 1802 is rotatably connected to the side of the lower support frame 2 close to the insertion tube 4 through the mounting column 6. The piston 1803 is fixedly sleeved on the outer wall of the piston rod 1801, and the outer wall of the piston 1803 is slidably connected to the inner wall of the piston cylinder 1802. The sealing ring 1804 is attached to the inner wall of the piston cylinder 1802, and the inner wall of the sealing ring 1804 is slidably connected to the outer wall of the piston rod 1801, so as to form a sealed space.

[0032] Among them; the buffer mechanism 18 also includes a dust ring 1805 and a liquid channel 1806, the dust ring 1805 is attached to the inner wall of the piston cylinder 1802, and the inner wall of the dust ring 1805 is slidably connected to the outer wall of the piston rod 1801, the liquid channel 1806 passes through the inner wall of the piston cylinder 1802, and one end of the liquid channel 1806 is located on one side of the piston 1803, and the other end of the liquid channel 1806 is located on the other side of the piston 1803, the interior of the piston cylinder 1802 is filled with hydraulic oil, through the upper carrier 1, the lower carrier 2 and the buffer mechanism 18, the hydraulic oil inside the buffer mechanism 18 can be used for buffering, so as to avoid sudden collision when the upper carrier 1 and the lower carrier 2 are unfolded or folded, reduce the noise when the device is unfolded and folded, and improve the safety of the device.

[0033] Among them; the limit reversing mechanism 19 includes a fixed block 1901, a threaded column 1902 and a limit block 1903, the fixed block 1901 is fixedly connected to one side of the lower support frame 2, and the fixed block 1901 is located below the limit gear 12, the threaded column 1902 is rotatably connected to the inner wall of the fixed block 1901, the limit block 1903 is rotatably connected to the top of the fixed block 1901, and the limit block 1903 is meshed with the limit gear 12, so as to utilize the limit block 1903 to limit the steering of the limit gear 12.

[0034] Among them; the limit reversing mechanism 19 also includes a spring 1904, a slide 1905, a slider 1906 and a torsion wheel 1907, the spring 1904 is fixedly connected to the top of the fixed block 1901, and the surface of the spring 1904 is slidably connected to one side of the limit block 1903, the slide 1905 is penetrated through the surface of the fixed block 1901, the slider 1906 is slidably connected to the inner wall of the slide 1905, and threaded holes are penetrated on both sides of the slider 1906, and the inner wall of the threaded hole is provided with a first internal thread, the outer wall of the threaded column 1902 is provided with a first external thread, and the threaded hole is threadedly connected to the threaded column 1902 through the first internal thread and the first external thread, and the torsion wheel 1907 is fixedly sleeved on the outer wall of the threaded column 1902, so as to use the limit reversing mechanism 19 to control the limit direction of the rotating drum 11, so as to assist the rotating drum 11 to rotate in one direction.

[0035] The outer wall of the connecting column 7 is fixedly sleeved with a meshing gear 20, and the number of the meshing gears 20 is four, and every two meshing gears 20 form a group, and each group of meshing gears 20 are meshed and connected to facilitate the folding of the auxiliary device.

[0036] Among them; a fixed column is provided on one side of the lower supporting frame 2, and the fixed support block 14 is fixedly connected to the lower supporting frame 2 through the fixed column, and movable holes 21 are opened on both sides of the fixed support block 14, and the inner wall of the movable hole 21 is slidably connected to the outer wall of the threaded rod 10, so that the threaded rod 10 can rotate freely inside the fixed support block 14.

[0037] Among them; the inner wall of the threaded barrel 16 is provided with a second internal thread, the outer wall of the threaded rod 10 is provided with a second external thread, and the threaded barrel 16 is threadedly connected to the threaded rod 10 through the second internal thread and the second external thread, so that the rotation of the threaded rod 10 can push the threaded barrel 16 to move.

[0038] Among them, the external protection tube 5 is slidably connected to the inner wall of the insert tube 4, so that the external protection tube 5 can be disassembled at any time.

[0039] Working principle: when unfolding, remove the external protective tube 5, lift the free end of the upper carrier 1 to unfold the device. When the device is unfolded, it will drive the piston rod 1801 to be pulled outward. When the piston rod 1801 is pulled out, the hydraulic oil on one side of it will be squeezed from the liquid channel 1806 to the other side of the piston 1803 through the piston 1803. Since the size of the liquid channel 1806 is fixed and the liquid is not easy to compress, the piston 1803 can only pump a certain amount of hydraulic oil per unit time, so that the piston rod 1801 cannot be accelerated, which causes the upper carrier 1 to unfold. After exceeding ninety degrees, it cannot be driven by its own gravity to drop suddenly. When the device is folded, it will drive the piston rod 1801 to be squeezed inward. The piston rod 1801 will also squeeze the hydraulic oil on one side from the liquid channel 1806 to the other side of the piston 1803 through the piston 1803. Since the size of the liquid channel 1806 is fixed and the liquid is not easy to compress, the piston 1803 can only pump a certain amount of hydraulic oil per unit time, so that the piston rod 1801 cannot accelerate the pumping, resulting in the upper carrier 1 cannot be driven by its own gravity after being folded less than ninety degrees. When the limit switch is reversed, the torsion wheel 1907 is twisted, and the torsion wheel 1907 drives the threaded column 1902 to rotate. When the threaded column 1902 rotates, the slider 1906 is pushed to slide inside the slide 1905 through the thread. When the slider 1906 pushes a limit block 1903, the engagement between it and the limit gear 12 is released, and the limit gear 12 is limited by another limit block 1903, thereby realizing the one-way limit of the rotating drum 11. When the device needs to move, the torsion wheel 1907 is twisted to control the limit direction of the limit reversing mechanism 19, and the toggle handle 13 is inserted into the The socket on the outer wall of the drum 11 is pushed to rotate the drum 11. After the toggle handle 13 reaches the end of the position, the new socket is rotated out and exposed. The toggle handle 13 is inserted into the new socket to continue to push the drum 11 to rotate. When the drum 11 rotates, it drives the threaded rod 10 to rotate. When the threaded rod 10 rotates, it drives the movable support block 15 to slide toward the drum 11. The sliding of the movable support block 15 will push the first support rod 1701 and the second support rod 1702 to fold, and the roller 1703 is gradually pushed downward, so that the device is slowly lifted and supported by the roller 1703, so as to facilitate movement.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Dual fuel pipe stacking rack, characterized in that: include: An upper bearing frame (1) and a lower bearing frame (2), one side of the upper bearing frame (1) and one side of the lower bearing frame (2) are both installed with a connecting beam (3), one side of the connecting beam (3) is integrally connected with a plug pipe (4), the inner wall of the plug pipe (4) is installed with an external protective pipe (5), the side of the upper bearing frame (1) close to the connecting beam (3) and the side of the lower bearing frame (2) close to the connecting beam (3) are both integrally connected with a mounting column (6), the side of the upper bearing frame (1) away from the mounting column (6) and the side of the lower bearing frame (2) away from the mounting column (6) are both integrally connected with a connecting column (7), the outer wall of the connecting column (7) is rotatably connected with a connecting block (8), the side of the lower bearing frame (2) away from the connecting beam (3) is fixedly connected with a mounting block (9), the inner wall of the mounting block (9) is rotatably connected with a threaded rod (10), and the threaded rod (10) is A rotating cylinder (11) is fixedly sleeved on the outer wall of the threaded rod (10), a limited position gear (12) is arranged at one end of the rotating cylinder (11) away from the connecting block (8), a plug hole is penetrated through the outer wall of the rotating cylinder (11), and a toggle handle (13) is movably inserted into the inner wall of the plug hole, a fixed support block (14) is arranged on the side of the lower bearing frame (2) close to the threaded rod (10), a movable support block (15) is slidably connected to the side of the lower bearing frame (2) close to the threaded rod (10), a threaded cylinder (16) is installed on the inner wall of the movable support block (15), a roller folding mechanism (17) is arranged on the side of the lower bearing frame (2) close to the threaded rod (10), a buffer mechanism (18) is arranged between the upper bearing frame (1) and the lower bearing frame (2), and a limited position reversing mechanism (19) is arranged on the side of the lower bearing frame (2) close to the threaded rod (10); The roller folding mechanism (17) comprises a first support rod (1701), a second support rod (1702) and a roller (1703); the first support rod (1701) is rotatably connected to the inner wall of the fixed support block (14); the second support rod (1702) is rotatably connected to the inner wall of the movable support block (15); the roller (1703) is rotatably connected to an end of the second support rod (1702) away from the movable support block (15); and an end of the second support rod (1702) away from the movable support block (15) is rotatably connected to an end of the first support rod (1701) away from the fixed support block (14); The limit reversing mechanism (19) comprises a fixed block (1901), a threaded column (1902) and a limit block (1903); the fixed block (1901) is fixedly connected to one side of the lower support frame (2), and the fixed block (1901) is located below the limit gear (12); the threaded column (1902) is rotatably connected to the inner wall of the fixed block (1901); the limit block (1903) is rotatably connected to the top of the fixed block (1901), and the limit block (1903) is meshingly connected to the limit gear (12).

2. The dual fuel pipe sheet stacking rack according to claim 1, characterized in that: The buffer mechanism (18) comprises a piston rod (1801), a piston cylinder (1802), a piston (1803) and a sealing ring (1804); the piston rod (1801) is rotatably connected to a side of the upper support frame (1) close to the insertion tube (4) via a mounting column (6); the piston cylinder (1802) is rotatably connected to a side of the lower support frame (2) close to the insertion tube (4) via a mounting column (6); the piston (1803) is fixedly sleeved on the outer wall of the piston rod (1801), and the outer wall of the piston (1803) is slidably connected to the inner wall of the piston cylinder (1802); the sealing ring (1804) is fitted on the inner wall of the piston cylinder (1802), and the inner wall of the sealing ring (1804) is slidably connected to the outer wall of the piston rod (1801).

3. The dual fuel pipe sheet stacking rack according to claim 2, characterized in that: The buffer mechanism (18) further comprises a dust ring (1805) and a liquid channel (1806), wherein the dust ring (1805) is attached to the inner wall of the piston cylinder (1802), and the inner wall of the dust ring (1805) is slidably connected to the outer wall of the piston rod (1801), and the liquid channel (1806) is opened through the inner wall of the piston cylinder (1802), and one end of the liquid channel (1806) is located on one side of the piston (1803), and the other end of the liquid channel (1806) is located on the other side of the piston (1803), and the interior of the piston cylinder (1802) is filled with hydraulic oil.

4. The dual fuel pipe sheet stacking rack according to claim 1, characterized in that: The position limiting reversing mechanism (19) further comprises a spring (1904), a sliding opening (1905), a slider (1906) and a torsion wheel (1907); the spring (1904) is fixedly connected to the top of the fixed block (1901), and the surface of the spring (1904) is slidably connected to one side of the position limiting block (1903); the sliding opening (1905) is penetrated and opened on the surface of the fixed block (1901); the slider (1906) is slidably connected to the inner wall of the sliding opening (1905), and threaded holes are penetrated and opened on both sides of the slider (1906), and the inner wall of the threaded hole is provided with a first internal thread; the outer wall of the threaded column (1902) is provided with a first external thread, and the threaded hole is threadedly connected to the threaded column (1902) through the first internal thread and the first external thread; and the torsion wheel (1907) is fixedly sleeved on the outer wall of the threaded column (1902).

5. The dual fuel pipe sheet stacking rack according to claim 1, characterized in that: A meshing gear (20) is fixedly sleeved on the outer wall of the connecting column (7), and the number of the meshing gears (20) is four, and every two meshing gears (20) form a group, and each group of meshing gears (20) are meshingly connected.

6. The dual fuel pipe sheet stacking rack according to claim 1, characterized in that: A fixing column is provided on one side of the lower bearing frame (2), the fixed support block (14) is fixedly connected to the lower bearing frame (2) via the fixing column, and movable holes (21) are provided through both sides of the fixed support block (14), and the inner wall of the movable hole (21) is slidably connected to the outer wall of the threaded rod (10).

7. The dual fuel pipe sheet stacking rack according to claim 1, characterized in that: The inner wall of the threaded barrel (16) is provided with a second internal thread, the outer wall of the threaded rod (10) is provided with a second external thread, and the threaded barrel (16) is threadedly connected to the threaded rod (10) via the second internal thread and the second external thread.

8. The dual fuel pipe sheet stacking rack according to claim 1, characterized in that: The external protection tube (5) is slidably connected to the inner wall of the insertion tube (4).

Images