Carrying cart for paperboards

Abstract

The utility model discloses a carrying cart for paperboards, and relates to the field of transportation equipment. The plate trailer comprises a plate trailer body and assembly holes evenly distributed in the plate trailer body, a fence assembly is inserted into the plate trailer body through the assembly holes and comprises a straight pipe, air outlet holes are evenly distributed in the pipe wall of the top of the straight pipe in the circumferential direction, the outer pipe wall of the straight pipe is sleeved with an elastic thin film with the annular section, and the thin film covers the air outlet holes. The two ends of the thin film are respectively adhered to the outer pipe wall of the straight pipe; a piston is hermetically and slidably mounted in the straight pipe by means of a linear driving assembly; the inner bottom of the straight pipe is in sealed connection with a connecting column, the connecting column protrudes out of the bottom of the straight pipe and is inserted into the assembly hole, and the inner top of the straight pipe is in sealed connection with a sealing cover. The paper board conveying device has the advantages that the straight pipe and the plate trailer are arranged on the periphery of the paper board in an inserted mode, the piston moves along the straight pipe to inject air into the thin film to enable the thin film to be expanded to make contact with and restrain the paper board, so that the paper board is prevented from shaking and turning over from the plate trailer, and safety and reliability of transferring are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of transportation equipment, relates to the field of cardboard transportation, and specifically relates to a cardboard transport cart. Background Art

[0002] Cardboard is a widely used packaging material. Made from pressed and dried pulp, it's thick and typically possesses high strength and rigidity. After production, cardboard needs to be transported. Traditionally, this was done using carts. With the advancement of automation, automated vehicles are now being used. While these vehicles can improve production efficiency and reduce manual labor, for businesses with limited automation, the purchase cost of these vehicles and the associated automation systems is typically high. These vehicles also require specialized technicians for maintenance and repair, as well as frequent equipment upgrades, which can increase production costs and burden businesses. Furthermore, these automated vehicles must be compatible with existing production equipment and processes, limiting their use. Therefore, for businesses with limited automation, using simpler equipment like carts for cardboard transportation is a common and cost-effective approach.

[0003] When using a conventional pallet truck to transport cardboard, after the cardboard is stacked on the pallet truck, the lack of a fence makes the stacking of the cardboard smooth and simple. However, due to the lack of a fence, the cardboard is prone to tipping over and falling during transportation, affecting the efficiency of transportation. Adding a fence to the pallet truck will affect the smooth placement of the cardboard, and the side of the cardboard will contact the fence and cause wear. When using ropes to tie the cardboard to the pallet truck, the ropes will cut the cardboard, and when tying the ropes to the pallet truck, the operating space is small, making it inconvenient to tie the ropes. Utility Model Content

[0004] This utility model provides a cardboard transport cart to address the technical issues of difficulty in securing and damaging cardboard during transport on a pallet truck. A straight tube is inserted into the cart and positioned around the cardboard. A piston moves along the tube, injecting air into a film to expand it and then contact and restrain the cardboard. This prevents the cardboard from shaking or tipping over from the cart, ensuring safe and reliable transport.

[0005] The technical solution adopted by the utility model is: to provide a cardboard transport cart, including a cart and assembly holes evenly distributed on the cart, the cart is plugged with an enclosure component by means of the assembly holes, the enclosure component includes a straight tube, the top tube wall of the straight tube is evenly distributed with air outlet holes along the circumference, and the outer tube wall of the straight tube is sleeved with a film with a ring-shaped cross-section and elasticity, the film covers the air outlet holes, and the two ends of the film are respectively bonded to the outer tube wall of the straight tube; a piston is sealingly and slidingly installed in the straight tube by means of a linear drive component; the bottom of the straight tube is sealed and connected with a connecting column, the connecting column protrudes from the bottom of the straight tube and is plugged with the assembly holes, and the top of the straight tube is sealed and connected with a sealing cover.

[0006] When stacking cardboard on a cart, the straight tube is not assembled with the cart, so that the loading of the cardboard is not disturbed and the loading is smooth and simple. The straight tube is connected to the assembly hole on the cart through the connecting column at the bottom, so that the straight tube is supported on the peripheral side of the cardboard. The cover on the top of the straight tube and the film on the outer tube wall of the straight tube cover the air outlet, so that the straight tube is a closed space. By driving the piston to move along the straight tube, the air in the straight tube is squeezed only between the film and the outer tube wall of the straight tube, so that the film is inflated and contacts the cardboard on the cart, thereby restricting the cardboard to prevent it from shaking during transportation. The film reduces the wear of the cardboard and ensures the safety of cardboard transportation. When unloading the cardboard, the straight tube is removed from the cart, so that the unloading of the cardboard is not interfered with and the unloading is convenient. After the piston is pushed back to the bottom of the straight tube, it is convenient to reuse it.

[0007] To further optimize this technical solution, the linear drive assembly includes a matching screw and nut; the screw is coaxially arranged on the cover and is sealed and rotated with the cover, and the top of the screw passes through the cover; the nut is coaxially assembled with the piston, and the piston is sealed and slidably connected to the straight tube with the help of a guide assembly.

[0008] The piston is driven by a matching screw rod and nut to move back and forth along the straight tube, squeezing and sucking the air in the straight tube. Its structure is simple, and the screw rod and nut have a self-locking effect, which can control the amount of air extrusion, thereby controlling the expansion of the film, and flexibly restraining the cardboard. The piston rises and falls linearly along the straight tube with the help of a guide assembly, ensuring the stability and reliability of the screw rod and nut drive.

[0009] To further optimize this technical solution, the guide assembly includes sliding strips uniformly distributed along the circumferential direction of the inner tube wall of the straight tube, and the outer side wall of the piston is provided with notches that match the number and position of the sliding strips, and the notches are respectively connected to the sliding strips in a sealing and sliding manner.

[0010] The number and position of the sliding strips arranged circumferentially on the inner wall of the straight tube match the notches arranged circumferentially on the outer wall of the piston. The sealed sliding connection between the notches and the sliding strips constrains the piston and limits its rotation, thereby making the screw rod and the nut engage smoothly and ensuring the stability of the piston drive.

[0011] To further optimize the technical solution, a knob is fixedly mounted on the top of the screw rod, and a polygonal inner groove is provided on the top surface of the knob.

[0012] The knob is convenient for manually tightening the screw rod, and the inner groove on the top surface of the knob makes it convenient to rotate the knob and screw rod with the help of a wrench and a hand drill, which is flexible and labor-saving to use.

[0013] To further optimize the technical solution, a connecting ring is inserted into the outer wall of the knob, a connecting arm is rotatably hinged to the outer wall of the connecting ring, and a counterweight panel is rotatably hinged to the free end of the connecting arm.

[0014] When transferring cardboard, after the straight tube is used to enclose the cardboard, the connecting ring is inserted into the knob, and the connecting ring is placed on the top surface of the cardboard with the help of the counterweight panel supported by the connecting arm. This applies downward pressure to the top of the stacked cardboard and to multiple points of the cardboard to prevent the cardboard from jumping during transfer and ensure the stability and reliability of cardboard transfer.

[0015] To further optimize this technical solution, the cart includes a base plate, a support plate is fixedly installed on the top surface of the base plate, and assembly holes are evenly distributed on the support plate; an armrest is provided on one side of the base plate, the armrest is fixedly installed on the bottom surface of the base plate, and a wheel body is circumferentially assembled on the bottom surface of the base plate.

[0016] The cart consists of a base plate and a support plate. The base plate is used to assemble the handrails and wheels to prevent the support plate from interfering with the assembly of the enclosure components and ensure reliability of use.

[0017] To further optimize the technical solution, a buckle is fixedly installed on the bottom surface of the base plate along the circumferential direction, and the buckle is matched with a hook piece, and the hook pieces are respectively fixedly installed on the outer side walls of the support plate.

[0018] The buckles on the bottom plate are buckled with the hooks on the support plate to lock the bottom plate and the support plate. The buckles are distributed on the bottom surface of the bottom plate to lock the support plate at multiple points to ensure reliability.

[0019] To further optimize the technical solution, protrusions are evenly distributed on the top of the bottom plate, and the protrusions are respectively plugged into assembly holes evenly distributed on the support plate.

[0020] The protrusions on the bottom plate are plugged into the assembly holes on the support plate to prevent the support plate from moving on the bottom plate, thereby ensuring the firmness of the assembly of the bottom plate and the support plate, and reducing the locking load of the buckle to ensure safety in use.

[0021] The beneficial effects of the present invention are:

[0022] 1. When loading cardboard onto the support plate, the straight tube is not assembled with the support plate, so that the loading of the cardboard is not disturbed and loading is smooth. After the support plate supports the cardboard, the straight tube is plugged into the assembly hole of the support plate through the connecting column at the bottom to support the straight tube on the side of the cardboard and drive the piston in the straight tube to move, squeezing the air in the straight tube into the film, causing it to expand and contact the cardboard, limiting the cardboard, preventing the cardboard from falling off the support plate, and preventing the cardboard from being worn;

[0023] 2. The screw rod and the nut engage to drive the piston to move along the straight tube. The notch on the outer wall of the piston is slidably connected with the outward protruding slide on the inner wall of the straight tube, thereby limiting the rotation of the piston and making the screw rod and the nut engage smoothly, ensuring the smoothness and reliability of the piston. The knob fixed on the screw rod is convenient for manual tightening, and the inner groove on the top surface of the knob is convenient for driving with the help of a wrench and a hand drill, which is flexible and labor-saving to use.

[0024] 3. When transferring cardboard, connect the connecting ring and the knob. The counterweight panel installed on the connecting ring with the help of the connecting arm is placed on the top surface of the cardboard to apply downward pressure on the top of the stacked cardboard. The downward pressure is also applied to multiple points of the cardboard to prevent the cardboard from jumping during the transfer process and ensure the stability and reliability of the cardboard transfer.

[0025] 4. After the transfer is completed, the straight tube is pulled out from the assembly hole so that the cardboard can be unloaded without interference and the cardboard can be unloaded easily. The piston is pushed back to the bottom of the straight tube so that the air squeezed into the film is sucked back into the straight tube, so that the straight tube can continue to be used to restrain the cardboard, which is flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of the cardboard transport cart of this embodiment;

[0027] Figure 2 Schematic diagram of the structure of the cart of this embodiment;

[0028] Figure 3 Schematic diagram of the split structure of the bottom plate and the support plate of this embodiment;

[0029] Figure 4 This is a schematic diagram of the disassembled structure of the straight tube, the sealing cover and the connecting column of this embodiment;

[0030] Figure 5 Schematic diagram of the internal structure of the straight tube of this embodiment;

[0031] Figure 6 This is a schematic diagram of the position structure of the straight tube and the membrane in this embodiment;

[0032] Figure 7 Schematic diagram of the structure of the piston of this embodiment;

[0033] Figure 8 Schematic diagram of the assembly structure of the counterweight panel and the connecting ring of this embodiment.

[0034] In the figure, 1. cart; 101. bottom plate; 1011. buckle; 1012. protrusion; 102. support plate; 1021. assembly hole; 1022. hook; 103. handrail; 104. wheel body; 2. straight tube; 201. air outlet; 202. slide bar; 3. film; 4. piston; 401. notch; 5. connecting column; 6. sealing cover; 7. screw rod; 8. nut; 9. knob; 901. inner groove; 10. connecting ring; 11. connecting arm; 12. counterweight panel. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0036] Please see the attached Figure 1-3 The cardboard transport cart includes a cart 1 and assembly holes 1021 evenly distributed on the cart 1. The cart 1 includes a bottom plate 101 and a support plate 102. An armrest 103 is provided on one side of the bottom plate 101. The armrest 103 is fixedly installed on the bottom surface of the bottom plate 101, and a wheel body 104 is circumferentially assembled on the bottom surface of the bottom plate 101. The support plate 102 is fixedly installed on the top surface of the bottom plate 101. The support plate 102 is locked and installed with the bottom plate 101 by means of a buckle 1011. The buckle 1011 is fixedly installed on the bottom surface of the bottom plate 101 and is circumferentially distributed along the bottom surface of the bottom plate 101. The hook piece 1011 is matched with the buckle 22 are respectively fixedly installed on the side walls of the support plate 102. After buckling, the support plate 102 and the fixed plate are locked and fixed at multiple points to ensure locking reliability. The top surface of the bottom plate 101 is evenly distributed with protrusions 1012, which are respectively plugged into the assembly holes 1021 evenly distributed on the support plate 102, thereby limiting the support plate 102 and preventing the support plate 102 from moving on the bottom plate 101, ensuring reliability in use and reducing the locking load of the buckle 1011. At the same time, the separate structure of the bottom plate 101 and the support plate 102 ensures that the assembly of the wheel body 104 and the armrest 103 does not interfere with the use of the support plate 102;

[0037] Please see the attached Figure 1 , Attachment Figure 4-6, the support plate 102 is plugged with a barrier assembly by means of an assembly hole 1021, and the barrier assembly includes a straight pipe 2, and a connecting column 5 is sealed and connected to the bottom of the straight pipe 2. The connecting column 5 can be threaded and sealed with the straight pipe 2, and can also be sealed and plugged with the straight pipe 2. The assembly is flexible, and the connecting column 5 protrudes from the bottom of the straight pipe 2 and plugs into the assembly hole 1021, thereby supporting the straight pipe 2 on the cart 1. The pipe wall at the top of the straight pipe 2 is evenly distributed with air outlet holes 201, and a film 3 with a ring-shaped and elastic cross-section is set on the outer wall of the straight pipe 2. The film 3 is opposite to the air outlet holes 201. The straight tube 2 is covered, and both ends of the film 3 are bonded to the outer tube wall of the straight tube 2. To ensure the bonding strength of the film 3, a clamp can be used to enhance the connection strength between the film 3 and the straight tube 2 and to ensure reliability in use. A piston 4 is sealingly and slidably installed in the straight tube 2, and a sealing cover 6 is sealingly connected to the top of the straight tube 2. The sealing cover 6, the connecting column 5 and the film 3 make the straight tube 2 a closed space. When the piston 4 slides along the bottom to the top of the straight tube 2 with the help of the linear drive assembly, the air in the straight tube 2 is squeezed into the film 3 through the air outlet 201, causing the film 3 to inflate;

[0038] Please see the attached Figure 4-6 , the linear drive assembly for driving the piston 4 to slide is a matching screw rod 7 and a nut 8. The screw rod 7 is coaxially arranged on the cover 6 and is rotatably mounted on the cover 6 with the help of a shaft oil seal to ensure the sealing effect in the straight tube 2. The nut 8 is coaxially assembled on the piston 4. When the driving screw rod 7 is engaged with the nut 8, the top of the screw rod 7 passes through the cover 6 so that the screw rod 7 can be screwed, and a knob 9 is fixedly mounted on the top of the screw rod 7. The screw rod 7 is easy to screw when the knob 9 is turned, and a polygonal inner groove 901 is provided on the top of the knob 9 so that it can be screwed with a hexagonal wrench or the like, and it is convenient to quickly screw the screw rod 7 with a hand drill, thereby improving the flexibility of use;

[0039] Please see the attached Figure 6 , Attachment Figure 7 When the screw rod 7 rotates and engages with the nut 8, the piston 4 is sealed and slidably connected to the straight tube 2 with the help of the guide assembly to ensure smooth engagement of the screw rod 7 and the nut 8. The guide assembly includes a slide 202 provided on the inner wall of the straight tube 2, and a notch 401 provided on the outer wall of the piston 4. The number and position of the notch 401 match the slide 202, and the notch 401 is sealed and slidably connected to the slide 202. The slide 202 limits the rotation of the piston 4 in the straight tube 2, thereby ensuring smoothness and stability of the engagement drive of the screw rod 7 and the nut 8;

[0040] Please see the attached Figure 1 , Attachment Figure 8When transporting cardboard, a connecting ring 10 is inserted into the knob 9 of the screw rod 7. A connecting arm 11 is rotatably hinged on the outer wall of the connecting ring 10. The free end of the connecting arm 11 is rotatably connected to a counterweight panel 12. By placing the counterweight panel 12 on the cardboard supported on the cart 1, downward pressure is applied to the cardboard to prevent it from jumping during transportation and ensure the safety of cardboard transportation.

[0041] The cardboard transport cart operates as follows: When transporting cardboard, the support plate 102 is placed on the base plate 101. The assembly holes 1021 on the support plate 102 engage with the protrusions 1012 on the base plate 101 and are locked securely with the buckles 1011. Once the cart 1 is assembled, it can be pushed to the cardboard loading position using the handrails 103, providing flexibility. When stacking the cardboard on the support plate 102, the straight tube 2 is not attached to the cart 1, ensuring uninterrupted loading and smooth, easy assembly. After the support plate 102 supports the cardboard, the straight tube 2 is removed and, using the connecting columns 5 at its bottom, engages with the assembly holes 1021 on the support plate 102 surrounding the cardboard, thereby supporting the cardboard. The top of the straight tube 2 is sealed by a cap 6, and the vent holes 201 on the tube wall are covered by a film 3, creating a closed space within the straight tube 2. The piston 4 is now located at the bottom of the straight tube 2. The operator then uses a hand drill and a wrench to rotate the knob 9 on the top of the cover 6. The knob 9 rotates the screw 7, causing it to engage with the nut 8, driving the piston 4 to slide upward along the inner wall of the straight tube 2. The piston 4 squeezes the air in the straight tube 2 through the air outlet 201 at the top of the straight tube 2 into the film 3, causing the film 3 to inflate and contact the cardboard, preventing the cardboard from shaking and tipping over from the cart 1, ensuring the reliability of cardboard transportation, and the film 3 reduces cardboard wear. When transporting the cardboard, the connecting ring 10 is inserted into the knob 9, and the counterweight panel 12 supported by the connecting arm 11 on the connecting ring 10 is placed on the top surface of the cardboard. This applies downward pressure on the top of the stacked cardboard, preventing the cardboard from jumping and ensuring the safety of cardboard transportation. After the transfer is completed, the straight tube 2 is pulled out from the assembly hole 1021 so that the cardboard can be unloaded without interference and can be used flexibly. The piston 4 is pushed back to the bottom of the straight tube 2 so that the air squeezed into the film 3 is sucked back into the straight tube 2 so that the straight tube 2 can be used to constrain the cardboard in the future.

Claims

1. A cardboard transport cart, characterized in that: The invention comprises a cart (1) and assembly holes (1021) uniformly distributed on the cart (1); a barrier assembly is plugged into the cart (1) by means of the assembly holes (1021); the barrier assembly comprises a straight tube (2); air outlet holes (201) are uniformly distributed along the circumference on the top tube wall of the straight tube (2); a film (3) with an annular cross section and elasticity is sleeved on the outer tube wall of the straight tube (2); the film (3) covers the air outlet holes (201), and the two ends of the film (3) are respectively bonded to the outer tube wall of the straight tube (2); a piston (4) is sealingly and slidably installed in the straight tube (2) by means of a linear drive assembly; a connecting column (5) is sealingly connected to the bottom of the straight tube (2); the connecting column (5) protrudes from the bottom of the straight tube (2) and is plugged into the assembly hole (1021); and a sealing cover (6) is sealingly connected to the top of the straight tube (2).

2. The cardboard transport cart according to claim 1, characterized in that: The linear drive assembly comprises a screw rod (7) and a nut (8) which are matched with each other; the screw rod (7) is coaxially arranged on the cover (6) and is installed to rotate with the cover (6) in a sealed manner, and the top of the screw rod (7) passes through the cover (6); the nut (8) is coaxially assembled with the piston (4), and the piston (4) is sealed and slidably connected to the straight pipe (2) by means of a guide assembly.

3. The cardboard transport cart according to claim 2, characterized in that: The guide assembly comprises sliding strips (202) uniformly distributed along the circumferential direction on the inner tube wall of the straight tube (2); notches (401) are provided on the outer side wall of the piston (4) and the number and position of the notches match those of the sliding strips (202); the notches (401) are respectively connected to the sliding strips (202) in a sealing and sliding manner.

4. The cardboard transport cart according to claim 2, characterized in that: A knob (9) is fixedly mounted on the top of the screw rod (7), and a polygonal inner groove (901) is provided on the top surface of the knob (9).

5. The cardboard transport cart according to claim 4, characterized in that: The outer wall of the knob (9) is plugged with a connecting ring (10), the outer wall of the connecting ring (10) is rotatably hinged with a connecting arm (11), and the free end of the connecting arm (11) is rotatably hinged with a counterweight panel (12).

6. The cardboard transport cart according to claim 1, characterized in that: The cart (1) comprises a base plate (101), a support plate (102) is fixedly mounted on the top surface of the base plate (101), and assembly holes (1021) are evenly distributed on the support plate (102); a handrail (103) is provided on one side of the base plate (101), the handrail (103) is fixedly mounted on the bottom surface of the base plate (101), and a wheel body (104) is assembled on the bottom surface of the base plate (101) along the circumferential direction.

7. The cardboard transport cart according to claim 6, characterized in that: A buckle (1011) is fixedly mounted on the bottom surface of the bottom plate (101) along the circumferential direction, and the buckle (1011) is matched with a hook piece (1022) which is fixedly mounted on the outer side wall of the support plate (102).

8. The cardboard transport cart according to claim 7, characterized in that: The top of the bottom plate (101) is evenly distributed with protrusions (1012), and the protrusions (1012) are respectively plugged into the evenly distributed assembly holes (1021) on the support plate (102).

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