A cargo fixing device for a logistics transport vehicle

Abstract

The present invention belongs to the technical field of cargo fixation, and particularly relates to a cargo fixation device for a logistics transport vehicle, which includes a lifting block. A pair of lifting blocks driven by a screw rod motor are slidably connected to both the front and rear sides of the carriage. A cross bar is connected between each pair of lifting blocks. A plurality of sliding sleeves that slide left and right are provided on the front cross bar. A plurality of sliding guide rails that slide left and right are provided on the rear inner wall of the carriage. The number of sliding guide rails is the same as that of the sliding sleeves. Lifting sleeves that slide up and down are provided on the sliding guide rails. By pushing the sliding guide rails and the sliding sleeves to move left and right, the position of the pressing rod in the front-rear direction is adjusted. The screw rod motor is controlled to lower the lifting block, the cross bar, the sliding sleeve, the pressing rod, the lifting sleeve and the winding wheel. The conical block is inserted into the binding strap, and the pressing rod presses down the binding strap. Under the cooperation of the scroll spring and the winding wheel, the binding strap binds the cargo tightly and adheres to the surface of the cargo, can adapt to the shape of the cargo, avoid the displacement of the lower-layer cargo, and has a simple operation, effectively improving the effect of fixing the cargo.

Description

Technical Field

[0001] The present invention belongs to the technical field of cargo fixation, and particularly relates to a cargo fixation device for a logistics transport vehicle. Background Art

[0002] During the process of transporting goods using a logistics transport vehicle, the fixation of goods is an important link to ensure transport safety. Cargo fixation devices usually use straps for fixation, but there are many problems in actual applications:

[0003] (1) Different goods have different widths and shapes. After the goods are placed in the carriage, there is a certain distance between the front and rear sides of the goods and the inner walls of the carriage. It is difficult for the straps to adapt to the surface shape of the goods, the contact between the straps and the surface of the goods is not tight, and the lower-layer goods are prone to displacement, resulting in poor cargo fixation effect;

[0004] (2) To improve space utilization, goods are stacked in multiple layers. It is necessary to pass the straps through the gap between the top of the goods and the inner top of the carriage, and it is also necessary to pull out the straps from the gap during unloading. The operating space is limited and the operation difficulty is high.

[0005] Therefore, it is urgent to develop a cargo fixation device for a logistics transport vehicle that can effectively solve the above problems and improve the cargo fixation effect and operation convenience. Summary of the Invention

[0006] In view of this, the present invention provides a cargo fixation device for a logistics transport vehicle.

[0007] The technical solution of the present invention is: A cargo fixation device for a logistics transport vehicle includes lifting blocks. A pair of lifting blocks driven by a screw motor are slidably connected to both the front and rear sides of the carriage. A cross bar is connected between each pair of lifting blocks. A plurality of sliding sleeves that slide left and right are provided on the front cross bar. A plurality of sliding guide rails that slide left and right are provided on the rear inner wall of the carriage. The number of sliding guide rails is the same as that of the sliding sleeves. Lifting sleeves that slide up and down are provided on the sliding guide rails. The lifting sleeves all slide left and right on the rear cross bar. Winding wheels are rotatably connected to the lifting sleeves. A scroll spring is provided between the winding wheel and the lifting sleeve. Straps are wound around the winding wheels. The free ends of the straps are detachably connected to the sliding sleeves. Connecting rods are connected between the left ends of the two cross bars and between the right ends of the two cross bars. Two pressing rods that slide back and forth are provided between the two connecting rods. The position of the pressing rods is higher than the position of the straps.

[0008] Furthermore, the cargo fixation device for a logistics transport vehicle further includes inserting rods and return springs. A row of insertion holes are evenly spaced on the inner bottom of the carriage. Inserting rods that slide up and down are provided at the bottom ends of the sliding guide rails. A return spring is connected between the inserting rod and the sliding guide rail. When the inserting rod slides downwards, it will insert into one of the insertion holes.

[0009] Further, the cargo fixing device for a logistics transport vehicle further includes fixing blocks and rollers. The upper end of the insertion rod is connected with a fixing block, and a roller contacting the inner wall of the carriage is rotatably connected to the fixing block. The fixing blocks all have contact parts. When the lifting sleeve slides down to the bottom end on the sliding guide rail, the lifting sleeve will squeeze the contact parts so that the insertion rod is inserted into the insertion hole.

[0010] Further, the cargo fixing device for a logistics transport vehicle further includes buckles and connecting rings. The free ends of the straps are all connected with buckles, and connecting rings are all connected to the sliding sleeves. The buckles are buckled on the connecting rings.

[0011] Further, the cargo fixing device for a logistics transport vehicle further includes mounting blocks and tapered blocks. The bottom ends of the sliding guide rails are all connected with mounting blocks, and a plurality of tapered blocks are all connected to the mounting blocks. When the lifting sleeve and the winding wheel descend, the tapered blocks will be inserted into the straps.

[0012] Further, the cargo fixing device for a logistics transport vehicle further includes bolts and handles. Both ends of the pressing rod have sliding parts that slide back and forth on the connecting rod. Bolts are threadedly connected to the sliding parts. The bolts are in close contact with the surface of the connecting rod to limit the position of the pressing rod, and handles are all connected to the bolts.

[0013] Further, the cargo fixing device for a logistics transport vehicle further includes a rotating rod, a carriage door, a connecting block, a translation block and a hinge plate. The rotating rod is rotatably connected to the carriage, a carriage door is connected to the rotating rod, a connecting block is connected to the outside of the carriage door, an electric push rod is connected to the top of the carriage, a translation block is connected to the telescopic rod of the electric push rod, and a hinge plate is rotatably connected between the translation block and the connecting block.

[0014] Further, the cargo fixing device for a logistics transport vehicle further includes guide rods, a limiting plate and a screw rod. A plurality of guide rods are slidably connected to the carriage door. A limiting plate for limiting the cargo is commonly connected between the bottom ends of the guide rods. A screw rod is threadedly connected to the carriage door, and the end of the screw rod is rotatably connected to the limiting plate.

[0015] The beneficial effects are as follows: 1. Push the sliding guide rail and the sliding sleeve to move left and right, adjust the position of the pressing rod in the front-back direction, control the screw motor to lower the lifting block, the cross bar, the sliding sleeve, the pressing rod, the lifting sleeve and the winding wheel. The tapered blocks are inserted into the straps, and the pressing rod presses down the straps. With the cooperation of the volute spring and the winding wheel, the straps tie up the cargo and tightly adhere to the surface of the cargo, can adapt to the shape of the cargo, avoid the displacement of the lower-layer cargo, and is easy to operate, effectively improving the effect of fixing the cargo.

[0016] 2. Control the electric push rod to move the translation block to the right. Under the action of the hinge plate, the carriage door rotates downward with the rotating rod as the axis to close. Then rotate the screw rod to move the limiting plate towards the inside of the carriage until the limiting plate contacts the cargo, and limit the left side of the cargo through the limiting plate. The adjustment is flexible, and the limiting plate can adapt to the specific position of the cargo, further improving the effect of fixing the cargo. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the carriage and the present invention.

[0018] Figure 2 It is Figure 1 a schematic diagram of the structure after the carriage in is cut open.

[0019] Figure 3 It is the present invention Figure 2 a schematic diagram of the internal structure of the carriage.

[0020] Figure 4 It is the top view of the present invention based on Figure 3 .

[0021] Figure 5 It is a schematic diagram of the structure of the lifting block, cross bar, sliding sleeve, sliding guide rail and strap of the present invention.

[0022] Figure 6 It is the present invention Figure 5 a schematic diagram of the structure after the lifting block and cross bar are hidden.

[0023] Figure 7 It is the present invention Figure 6 a partial schematic diagram of the upper half part.

[0024] Figure 8 It is the present invention Figure 3 an enlarged view at B in .

[0025] Figure 9 It is the present invention Figure 2 an enlarged view at A in .

[0026] Figure 10 It is a schematic diagram of the connection relationship of the rotating rod, carriage door, translation block, hinge plate and limiting mechanism of the present invention, wherein the carriage door is cut open.

[0027] Figure 11 It is the front view of the rotating rod, carriage door, connecting block, translation block, hinge plate and limiting mechanism of the present invention.

[0028] Figure 12 It is the present invention Figure 11 a schematic diagram after the carriage door is closed.

[0029] In the attached drawing reference numerals: 1 - carriage, 2 - lifting block, 3 - cross bar, 4 - sliding sleeve, 5 - sliding guide rail, 50 - jack hole, 51 - plug rod, 52 - return spring, 53 - fixed block, 54 - contact part, 55 - roller, 6 - lifting sleeve, 7 - winding wheel, 8 - binding strap, 81 - buckle, 82 - connecting ring, 83 - mounting block, 84 - tapered block, 9 - connecting rod, 10 - pressing rod, 101 - sliding part, 102 - bolt, 103 - handle, 111 - rotating rod, 112 - carriage door, 113 - connecting block, 114 - translation block, 115 - hinge plate, 121 - guide rod, 122 - limiting plate, 123 - screw rod. Detailed implementation manners

[0030] The embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0031] Embodiment 1: A cargo fixing device for a logistics transport vehicle, referring to Figures 1 - 7 , includes a lifting block 2, a cross bar 3, a sliding sleeve 4, a sliding guide rail 5, a lifting sleeve 6, a winding wheel 7, a binding strap 8, a connecting rod 9 and a pressing rod 10. The logistics transport vehicle has a carriage 1. A pair of lifting blocks 2 are slidably connected to both the front and rear sides of the carriage 1. A pair of screw rod motors are installed on both the front and rear sides of the carriage 1. The lifting blocks 2 are installed on the screw rod motors. A cross bar 3 is fixedly connected between each pair of lifting blocks 2. Three sliding sleeves 4 that slide left and right are provided on the front cross bar 3. Three sliding guide rails 5 that slide left and right are provided on the inner rear wall of the carriage 1. Lifting sleeves 6 that slide up and down are provided on the sliding guide rails 5. The lifting sleeves 6 slide left and right on the rear cross bar 3. Winding wheels 7 are rotatably connected to the lifting sleeves 6. A scroll spring (not shown in the figure) is connected between the winding wheel 7 and the lifting sleeve 6. Binding straps 8 are wound around the winding wheels 7. The free ends of the three binding straps 8 are detachably connected to the three sliding sleeves 4 respectively. Connecting rods 9 are fixedly connected between the left ends of the two cross bars 3 and between the right ends of the two cross bars 3 respectively. Two pressing rods 10 that slide back and forth are provided between the two connecting rods 9. The position of the pressing rod 10 is higher than the position of the binding strap 8.

[0032] Referring to Figure 9 , the cargo fixing device for the logistics transport vehicle further includes a plug rod 51 and a return spring 52. A row of jack holes 50 are evenly spaced on the inner bottom rear side of the carriage 1. Plug rods 51 that slide up and down are provided at the bottom ends of the sliding guide rails 5. A return spring 52 is fixedly connected between the plug rod 51 and the sliding guide rail 5. When the plug rod 51 slides downwards, it will insert into one of the jack holes 50.

[0033] Referring to Figure 6 and Figure 9, the cargo fixing device for the logistics transport vehicle further includes a fixing block 53 and a roller 55. The upper end of the insertion rod 51 is fixedly connected to the fixing block 53. A roller 55 in contact with the inner rear wall of the carriage 1 is rotatably connected to the fixing block 53. The top of the fixing block 53 has a contact portion 54. When the lifting sleeve 6 slides down to the bottom end on the sliding guide 5, the lifting sleeve 6 will squeeze the contact portion 54 to insert the insertion rod 51 into the insertion hole 50.

[0034] Reference Figure 7 , the cargo fixing device for the logistics transport vehicle further includes a buckle 81 and a connecting ring 82. The free ends of the straps 8 are all connected to the buckle 81. The top of the sliding sleeve 4 is fixedly connected to the connecting ring 82. The buckle 81 is a prior art. The buckle 81 is buckled on the connecting ring 82.

[0035] Reference Figure 6 and Figure 9 , the cargo fixing device for the logistics transport vehicle further includes a mounting block 83 and a tapered block 84. The bottom ends of the sliding guides 5 are fixedly connected to the mounting blocks 83. The tops of the mounting blocks 83 are fixedly connected to a plurality of tapered blocks 84. When the lifting sleeve 6 and the winding wheel 7 descend, the tapered blocks 84 will be inserted into the straps 8.

[0036] Reference Figure 3 and Figure 8 , the cargo fixing device for the logistics transport vehicle further includes a bolt 102 and a handle 103. Both the left and right ends of the pressing rod 10 have sliding portions 101 that slide back and forth on the connecting rod 9. Bolts 102 are threadedly connected to the two sliding portions 101 on the left side. The right ends of the bolts 102 are in close contact with the surface of the left connecting rod 9. The left ends of the bolts 102 are all connected to the handles 103.

[0037] Initially, the buckle 81 is buckled on the connecting ring 82, the strap 8 is in the pulled-out state, and the scroll spring is in the deformed state.

[0038] First step, stack the goods to be transported in the carriage 1. Manually push the sliding guide 5 so that the sliding guide 5, the lifting sleeve 6, the winding wheel 7, the insertion rod 51, the fixing block 53, and the roller 55 move as a whole in the left-right direction. The roller 55 plays a role in reducing friction. Then push the sliding sleeve 4 to slide left and right on the cross bar 3. The position of the sliding sleeve 4 and the position of the sliding guide 5 correspond one by one in the front-back direction. The specific positions of the sliding guide 5 and the sliding sleeve 4 are determined according to the positions where the goods need to be tied, and the insertion rod 51 is aligned with one of the insertion holes 50 up and down.

[0039] Step 2: Manually rotate the handle 103 to drive the bolt 102 to rotate and loosen the connecting rod 9, push the sliding part 101 to drive the pressing rod 10 to slide back and forth, so that the front pressing rod 10 is aligned with the foremost side of the goods in the vertical direction, and the rear pressing rod 10 is aligned with the rearmost side of the goods in the vertical direction. Then reverse the handle 103 to drive the bolt 102 to reverse and closely contact the surface of the connecting rod 9, so that the position of the pressing rod 10 and the connecting rod 9 is relatively fixed.

[0040] Step 3: Control the lead screw motor to drive the lifting block 2 to descend, driving the cross bar 3, sliding sleeve 4, connecting rod 9, pressing rod 10, lifting sleeve 6 and winding wheel 7 to descend together. The pressing rod 10 presses down the binding strap 8, and the winding wheel 7 rotates to loosen the binding strap 8, and the scroll spring deforms. The scroll spring has sufficient elastic force to tighten the binding strap 8 around the goods; the descending lifting sleeve 6 will push the contact part 54, so that the fixed block 53 and the insertion rod 51 move downward, and the insertion rod 51 is inserted into the insertion hole 50, and the return spring 52 is compressed, thereby automatically fixing the position of the sliding guide rail 5 in the left-right direction and preventing the sliding guide rail 5 from displacing during subsequent transportation; as the winding wheel 7 descends, the conical block 84 is inserted into the binding strap 8 to play a role in restricting the binding strap 8. At this time, under the action of the pressing rod 10, the binding strap 8 adheres to the surface of the goods and can adapt to the shape of the goods.

[0041] Step 4: When the goods are transported to the destination, control the lead screw motor to drive the lifting block 2 to rise and reset, driving the cross bar 3, sliding sleeve 4, connecting rod 9, pressing rod 10, lifting sleeve 6 and winding wheel 7 to rise and reset together. The conical block 84 is separated from the binding strap 8. Under the action of the scroll spring, the winding wheel 7 gradually winds up the binding strap 8. The lifting sleeve 6 is separated from the contact part 54, and the return spring 52 is restored, driving the insertion rod 51 to move upward to leave the insertion hole 50. At this time, unloading can be carried out, and the operation is simple.

[0042] In this way, with the cooperation of the scroll spring and the conical block 84, the binding strap 8 tightens the goods. By pressing down the binding strap 8 with the pressing rod 10, both the binding and unloading operations are simple, and the binding strap 8 can also adapt to the surface of the goods, preventing the displacement of the lower-layer goods during transportation and effectively improving the effect of fixing the goods.

[0043] Embodiment 2: On the basis of Embodiment 1, referring to Figure 1 、 Figure 2 、 Figure 10 、 Figure 11 and Figure 12, the cargo fixing device for a logistics transport vehicle further includes a rotating rod 111, a compartment door 112, a connecting block 113, a translation block 114 and a hinge plate 115. The rotating rod 111 is rotatably connected above the left opening of the carriage 1. A compartment door 112 is fixedly connected to the rotating rod 111. A connecting block 113 is welded and connected to the outer side of the compartment door 112. An electric push rod is bolted to the top of the carriage 1. The telescopic rod of the electric push rod is connected with a translation block 114. A hinge plate 115 is rotatably connected between the translation block 114 and the connecting block 113.

[0044] Reference Figure 1 , Figure 2 , Figure 10 , Figure 11 and Figure 12 , the cargo fixing device for a logistics transport vehicle further includes a guide rod 121, a limit plate 122 and a screw rod 123. Four guide rods 121 are slidably connected to the compartment door 112. A limit plate 122 is fixedly connected between the bottoms of the four guide rods 121. A screw rod 123 is threadedly connected to the middle of the compartment door 112. The bottom end of the screw rod 123 is rotatably connected to the limit plate 122.

[0045] When the goods are placed and the compartment door 112 needs to be closed, control the telescopic rod of the electric push rod to shorten, so that the translation block 114 moves to the right. Under the transmission action of the hinge plate 115, the compartment door 112 rotates downward with the rotating rod 111 as the axis to close. The specific state is as Figure 12 shown. Then manually rotate the screw rod 123. Under the action of the threaded connection, the screw rod 123 simultaneously moves to the right relative to the compartment door 112, driving the limit plate 122 to move into the carriage 1. The guide rod 121 plays a guiding role until the limit plate 122 contacts the goods, so as to limit the left side of the goods through the limit plate 122, further improving the effect of fixing the goods. The limit plate 122 can adapt to the specific position of the goods and is flexible to adjust.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A cargo fixing device for a logistics transport vehicle, comprising a lifting block (2), characterized in that: A pair of lifting blocks (2) driven by a screw motor are slidably connected to the front and rear sides of the carriage (1), and a cross bar (3) is connected between each pair of lifting blocks (2). The front cross bar (3) is provided with a plurality of sliding sleeves (4) that slide left and right. The rear wall of the carriage (1) is provided with a plurality of sliding guide rails (5) that slide left and right. The number of the sliding guide rails (5) and the sliding sleeves (4) is the same. The sliding guide rails (5) are provided with lifting sleeves (6) that slide up and down. The lifting sleeves (6) slide left and right on the rear cross bar (3). The lifting sleeves (6) are rotatably connected with a winding mechanism. A wheel (7), a spiral spring is provided between the winding wheel (7) and the lifting sleeve (6), a strap (8) is wound around the winding wheel (7), a free end of the strap (8) is detachably connected to the sliding sleeve (4), a connecting rod (9) is connected between the left ends of the two cross bars (3) and between the right ends of the two cross bars (3), two downward pressing rods (10) that slide forward and backward are provided between the two connecting rods (9), the position of the downward pressing rod (10) is higher than the position of the strap (8), the cargo fixing device for the logistics transport vehicle also includes an insertion rod (51) and a reset spring (52), the carriage ( 1) A row of insertion holes (50) are evenly spaced apart at the inner bottom, the bottom of each of the sliding guide rails (5) is provided with an insertion rod (51) that slides up and down, a return spring (52) is connected between the insertion rod (51) and the sliding guide rail (5), and the insertion rod (51) slides downward to be inserted into one of the insertion holes (50), and the cargo fixing device for the logistics transport vehicle also includes a fixing block (53) and a roller (55), the upper end of the insertion rod (51) is connected to the fixing block (53), and the fixing block (53) is rotatably connected to a roller (55) that contacts the inner wall of the carriage (1), and the The fixing blocks (53) each have a contact portion (54). When the lifting sleeve (6) slides downward to the bottom on the sliding guide rail (5), the lifting sleeve (6) will press the contact portion (54) to allow the insertion rod (51) to be inserted into the insertion hole (50). The cargo fixing device for the logistics transport vehicle also includes a mounting block (83) and a conical block (84). The bottom end of the sliding guide rail (5) is connected to the mounting block (83). A plurality of conical blocks (84) are connected to the mounting block (83). When the lifting sleeve (6) and the winding wheel (7) are lowered, the conical block (84) is inserted into the binding belt (8).

2. A cargo securing device for a logistics transport vehicle according to claim 1, characterized in that: The cargo securing device for the logistics transport vehicle further comprises a buckle (81) and a connecting ring (82), the free ends of the binding straps (8) are connected to the buckles (81), the sliding sleeves (4) are connected to the connecting rings (82), and the buckles (81) are buckled onto the connecting rings (82).

3. A cargo securing device for a logistics transport vehicle according to claim 2, characterized in that: The cargo fixing device for the logistics transport vehicle also includes a bolt (102) and a handle (103). Both ends of the push rod (10) have a sliding portion (101) that slides back and forth on the connecting rod (9). The sliding portion (101) is threadedly connected with a bolt (102). The bolt (102) is in close contact with the surface of the connecting rod (9) to limit the position of the push rod (10). The bolt (102) is connected to a handle (103).

4. A cargo securing device for a logistics transport vehicle according to claim 3, characterized in that: The cargo fixing device for a logistics transport vehicle further comprises a rotating rod (111), a compartment door (112), a connecting block (113), a translation block (114) and a hinged plate (115); the rotating rod (111) is rotatably connected to the compartment (1); the compartment door (112) is connected to the rotating rod (111); the outer side of the compartment door (112) is connected to the connecting block (113); the top of the compartment (1) is connected to an electric push rod; the telescopic rod of the electric push rod is connected to the translation block (114); and the hinged plate (115) is rotatably connected between the translation block (114) and the connecting block (113).

5. A cargo securing device for a logistics transport vehicle according to claim 4, characterized in that: The cargo fixing device for a logistics transport vehicle further comprises a guide rod (121), a limit plate (122) and a screw rod (123); a plurality of guide rods (121) are slidably connected to the compartment door (112); the bottom ends of the guide rods (121) are commonly connected to a limit plate (122) for limiting the position of cargo; the compartment door (112) is threadedly connected to a screw rod (123); the end of the screw rod (123) is rotatably connected to the limit plate (122).

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