A heavy-load four-way vehicle with adjustable cargo area

Abstract

The present invention discloses a heavy-duty four-way vehicle with adjustable cargo placement area, relating to the technical field of four-way vehicles, comprising a four-way vehicle body, a transverse moving mechanism, a longitudinal moving mechanism, a driving assembly and a placement plate fixedly mounted on the top of the four-way vehicle body, wherein load-bearing plates are symmetrically mounted on both sides of the placement plate, and further comprising: an adjusting mechanism is symmetrically arranged inside the placement plate, and a reinforcing mechanism is symmetrically arranged on both sides of the placement plate; the adjusting mechanism comprises a sliding column and an inner groove, wherein the inner groove is opened inside the four-way vehicle body, the load-bearing plate is slidably connected to the inner groove, the bottom of the sliding column is fixedly connected to a connecting plate, and the bottom of the connecting plate is symmetrically fixedly connected to a pressure plate, thereby solving the problem that since larger cargo has greater inertia when moving, if the cargo is not limited, when the four-way vehicle starts and stops, the larger cargo is easily affected by inertia and easily slides or deflects, thereby affecting the stability and safety of cargo handling.

Description

Technical Field

[0001] The invention relates to the technical field of four-way vehicles, in particular to a heavy-load four-way vehicle with an adjustable cargo area. Background Art

[0002] The shuttle rack is a high-capacity, high-efficiency rack. When working, the four-way shuttle car completes the storage and retrieval of goods on the straight track.

[0003] For example, a four-way shuttle vehicle with an adjustable lifting plate, as announced in CN218706424U, comprises a vehicle body, a transverse walking mechanism and a longitudinal walking mechanism provided on the vehicle body, respectively used to drive the vehicle body to move in two mutually perpendicular directions, and a lifting device for lifting goods is also provided on the vehicle body, wherein the lifting device comprises a lifting plate arranged at intervals, the lifting plate comprises a plate body and an adjusting support plate slidably provided at both ends of the plate body, and by dividing the lifting plate into a plate body and an adjusting support plate slidably provided at both ends of the plate body, the adjusting support plate can be pulled to the left when the bottom area of ​​the goods is large. The plate body and the adjusting support plate are connected with a locking mechanism that can lock the two. The locking mechanism locks the plate body and the adjusting support plate to prevent the adjusting support plate from sliding accidentally, thereby ensuring the stability of the cargo when supporting the cargo. However, since larger cargo has greater inertia when moving, if the cargo is not limited, when the four-way vehicle starts and stops, the larger cargo is easily affected by inertia and slides or deflects, affecting the stability and safety of cargo handling, which has certain defects.

[0004] Therefore, a heavy-duty four-way vehicle with an adjustable cargo area is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a heavy-duty four-way vehicle with an adjustable cargo placement area to solve the problem that since larger cargo has greater inertia when moving, if the cargo is not limited, when the four-way vehicle starts and stops, the larger cargo is easily affected by inertia and may slide or deflect, thereby affecting the stability and safety of cargo handling.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a heavy-duty four-way vehicle with an adjustable cargo placement area, comprising a four-way vehicle body, a transverse movement mechanism, a longitudinal movement mechanism, a drive assembly, and a placement plate fixedly mounted on the top of the four-way vehicle body, with load-bearing plates symmetrically mounted on both sides of the placement plate;

[0007] Also includes:

[0008] The interior of the placement plate is symmetrically provided with an adjustment mechanism, and both sides of the placement plate are symmetrically provided with a reinforcement mechanism;

[0009] The adjustment mechanism includes a slide column and an inner groove, the inner groove is opened inside the four-way vehicle body, the bearing plate is slidably connected to the inner groove, the bottom of the slide column is fixedly connected to a connecting plate, the bottom of the connecting plate is symmetrically fixedly connected to a pressure plate, the interior of the placement plate is symmetrically opened with a slide groove, the interior of the slide groove is fixedly connected to a fixed block, and the interior of the fixed block is slidably connected to a slide rod;

[0010] The top of the four-way vehicle body is symmetrically provided with side grooves, the side of the slide rod close to the pressure plate is fixedly connected to an inclined block, the inclined surface of the inclined block abuts against the pressure plate, the end of the slide rod away from the pressure plate is fixedly connected to a connecting rod, one side of the connecting rod is fixedly connected to a fixed rod, the outer side of the connecting rod is sleeved with an adjusting rod, the adjusting rod is slidably connected to the connecting rod, and a screw rod 1 is installed on the outer side of the adjusting rod;

[0011] The outer side of the screw rod 1 is rotatably connected to a rotating sleeve, the inner side of the fixed rod is threadedly connected to the screw rod 2, one end of the screw rod 2 is rotatably connected to the rotating sleeve, the outer side of the adjusting rod is fixedly connected to a bottom block, the top of the bottom block is slidably connected to a telescopic block, a vertical slot is vertically opened inside the bearing plate, the vertical slot is slidably connected to a vertical rod, and the bottom of the vertical rod is slidably connected to a pressure rod;

[0012] A spring three is installed inside the vertical rod, and a limited block is fixedly connected to the outer side of the vertical rod. The outer side of the supporting plate away from the placement plate is rotatably connected to a rotating plate, and the rotating plate is bent, and a clamping rod is fixedly connected to the top of the rotating plate.

[0013] Preferably, a moving block is slidably connected inside the side groove, the top of the moving block is fixedly connected to the inclined block, one side of the moving block is fixedly connected to spring 1, and spring 1 is fixedly installed inside the side groove.

[0014] By adopting the above technical solution, it can adapt to the placement and transportation of goods of different sizes. By rotating the clamping rod to clamp the outer side of the goods, auxiliary fixation of the goods is achieved, which reduces the possibility of slipping during transportation.

[0015] Preferably, auxiliary grooves are symmetrically opened on the outer side of the placement plate, the fixing rod is slidably connected to the auxiliary groove, the screw rod 1 is threadedly connected to the adjustment rod, and the screw rod 1 is in contact with the connecting rod.

[0016] By adopting the above technical solution, the fixed rod is kept stationary, the second screw rod is rotated, the second screw rod drives the rotating sleeve to move, the first screw rod is loosened, the rotating sleeve drives the first screw rod to move, and the first screw rod drives the adjusting rod to slide outside the connecting rod.

[0017] Preferably, the rotating sleeve is located outside the placement plate, an auxiliary spring is fixedly installed inside the bottom block, and the bottom surface of the telescopic block is fixedly connected to the auxiliary spring.

[0018] By adopting the above technical solution, the elastic coefficient of spring three is greater than the elastic coefficient of the auxiliary spring at the bottom of the telescopic block, so that the vertical rod drives the pressure rod through spring three to squeeze the telescopic block, so that the telescopic block slides completely into the bottom block. At this time, the telescopic block will not drive the supporting plate to move.

[0019] Preferably, a top groove is symmetrically provided on the top of the placement plate, the vertical rod is slidably connected to the top groove, a limiting groove is provided inside the supporting plate, the limiting groove is communicated with the vertical groove, a second spring is fixedly installed inside the limiting groove, the limiting block is fixedly connected to the second spring, and the limiting block is slidably connected to the limiting groove.

[0020] By adopting the above technical solution, when the limit block is pressed down, the limit block drives the limit block compression spring 2, and the limit block assists the limit block in pressing down smoothly.

[0021] Preferably, the top end of the spring three is fixedly connected to the vertical rod, the bottom end of the spring three is fixedly connected to the pressure rod, and the bottom of the pressure rod is in contact with the top of the telescopic block.

[0022] By adopting the above technical solution, when the telescopic block does not drive the load-bearing plate to move, the cargo compresses the vertical rod and the sliding column, the vertical rod compresses spring three, and the vertical rod slides on the pressure rod, which will not affect the position change of the load-bearing plate.

[0023] Preferably, the vertical distance from the top surface of the vertical rod to the top surface of the sliding column is equal to the height of the extension of the telescopic block, which facilitates the subsequent pressing rod to press the telescopic block into the bottom block, thereby not blocking the movement of the bottom block and the adjustment rod.

[0024] By adopting the above technical solution, the telescopic block is prevented from driving the carrying plate to move.

[0025] Preferably, the reinforcement mechanism includes an upper sleeve and a lower sleeve, an inner rod is installed between the upper sleeve and the lower sleeve, and a spring four is sleeved on the outer sides of the upper sleeve and the lower sleeve.

[0026] By adopting the above technical solution, the upper plate cooperates with the lower plate to stretch the spring four, so that the spring four assists the movement of the upper sleeve.

[0027] Preferably, the upper sleeve is rotatably connected to the bottom of the supporting plate, the lower sleeve is rotatably connected to the outer side of the placement plate, the upper sleeve and the lower sleeve are both slidably connected to the inner rod, the outer side of the upper sleeve is fixedly connected to the upper plate, the outer side of the lower sleeve is fixedly connected to the lower plate, and the two ends of the spring four are respectively fixedly connected to the upper plate and the lower plate.

[0028] By adopting the above technical solution, the upper sleeve, the inner rod and the lower sleeve cooperate to better support the load-bearing plate, thereby improving the structural strength of the load-bearing plate and facilitating the support and use of goods.

[0029] Compared with the prior art, the present invention has the following advantages: an adjustment mechanism is provided to adapt to the placement and transportation of goods of different sizes; the outer side of the goods is clamped by rotating the clamping rod, thereby achieving auxiliary fixation of the goods, reducing the possibility of goods slipping during transportation, and improving the stability of the four-way vehicle body in transportation;

[0030] 1. An adjustment mechanism is provided to adjust the position of the load-bearing plate according to the size of the cargo. By keeping the fixed rod stationary and turning the screw rod 2, the screw rod 2 drives the rotating sleeve to move, and the rotating sleeve drives the screw rod 1 to move. Loosening the screw rod 1, the screw rod 1 drives the adjusting rod to slide on the outside of the connecting rod, and the adjusting rod drives the bottom block and the telescopic block to move, and the telescopic block drives the load-bearing plate to move, so that the load-bearing plate extends outward, thereby realizing the position adjustment of the load-bearing plate, until both sides of the cargo are flush with the sides of the two load-bearing plates. After adjustment, tighten the screw rod 1 to fix the adjusting rod and the connecting rod; then place the cargo on the top of the placement plate, and the cargo first contacts the vertical rod. Since the elastic coefficient of the spring 3 is greater than the elastic coefficient of the auxiliary spring at the bottom of the telescopic block, the vertical rod drives the pressure rod through the spring 3 to squeeze the telescopic block, so that the telescopic block slides completely into the bottom block. At this time, the telescopic block will not drive the load-bearing plate to move, and the cargo compresses the vertical rod and the sliding column again, and the vertical rod The cam is pressed against the top of the cam, and the cam is pressed against the top of the cam, so that the cam is pressed against the top of the cam, and the cam is pressed against the bottom of the cam, so that the cam is pressed against the top of the cam, and the cam is pressed against the bottom of the cam.

[0031] 2. A reinforcement mechanism is provided. When the load-bearing plate moves and adjusts, the load-bearing plate drives the upper sleeve to move, and the position of the lower sleeve remains unchanged. The upper sleeve slides on the outside of the inner rod, and the lower sleeve slides on the outside of the inner rod, so that the distance between the upper sleeve and the lower sleeve increases, and the upper sleeve drives the upper plate to move. The upper plate cooperates with the lower plate to stretch the spring four, so that the spring four assists the movement of the upper sleeve. When the load-bearing plate is reset, the elastic force of the spring four can also assist the reset of the upper sleeve and the load-bearing plate. Through the cooperation of the upper sleeve, the inner rod and the lower sleeve, the load-bearing plate can be better supported, the structural strength of the load-bearing plate is improved, and it is convenient to support and use goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the first three-dimensional overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the second three-dimensional overall structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the cross-sectional structure of the upper plate of the present invention;

[0035] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0036] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0037] Figure 6 This is a schematic diagram of the installation structure of the inclined block of the present invention;

[0038] Figure 7 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0039] Figure 8 For the present invention Figure 6 The enlarged structural diagram at D in the middle;

[0040] Figure 9 For the present invention Figure 6 The enlarged structural diagram at E in the middle;

[0041] Figure 10 This is a schematic diagram of the load-bearing plate stretching of the present invention;

[0042] Figure 11 This is a schematic diagram of the mounting structure of the load-bearing plate of the present invention;

[0043] Figure 12 For the present invention Figure 11 The enlarged structural diagram at F in the middle;

[0044] Figure 13 It is a schematic diagram of the internal structure of the four-way vehicle body of the present invention.

[0045] Figure: 1, four-way vehicle body; 2, placement plate; 3, horizontal movement mechanism; 4, longitudinal movement mechanism; 5, load-bearing plate; 6, adjustment mechanism; 61, slide column; 62, inner groove; 63, connecting plate; 64, pressure plate; 65, slide groove; 66, fixed block; 67, slide rod; 68, side groove; 69, moving block; 610, inclined block; 611, spring 1; 612, connecting rod; 613, fixed rod; 614, auxiliary groove; 615, adjustment rod; 616, screw rod 1 ; 617, rotating sleeve; 618, screw rod 2; 619, bottom block; 620, telescopic block; 621, vertical slot; 622, vertical rod; 623, top slot; 624, limit slot; 625, spring 2; 626, limit block; 627, pressure rod; 628, spring 3; 629, rotating plate; 630, clamping rod; 7, reinforcement mechanism; 71, upper sleeve; 72, lower sleeve; 73, upper plate; 74, lower plate; 75, inner rod; 76, spring 4; 8, drive assembly. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0047] See also Figures 1-13 The present invention provides a technical solution: a heavy-duty four-way vehicle with an adjustable cargo placement area, comprising a four-way vehicle body 1, a transverse moving mechanism 3, a longitudinal moving mechanism 4, a drive assembly 8, and a placement plate 2 fixedly installed on the top of the four-way vehicle body 1, and load-bearing plates 5 are symmetrically installed on both sides of the placement plate 2.

[0048] An adjustment mechanism 6 is symmetrically arranged inside the placement plate 2, and the adjustment mechanism 6 includes a slide column 61 and an inner groove 62. The inner groove 62 is opened inside the four-way vehicle body 1, and the load-bearing plate 5 is slidably connected to the inner groove 62. The bottom of the slide column 61 is fixedly connected to a connecting plate 63, and the bottom of the connecting plate 63 is symmetrically fixedly connected to a pressure plate 64. A slide groove 65 is symmetrically opened inside the placement plate 2, and a fixed block 66 is fixedly connected to the inner side of the slide groove 65, and a slide rod 67 is slidably connected to the inner side of the fixed block 66.

[0049] The top of the four-way vehicle body 1 is symmetrically provided with side grooves 68, and the side of the slide rod 67 close to the pressure plate 64 is fixedly connected to the inclined block 610, and the inclined surface of the inclined block 610 abuts against the pressure plate 64, and the end of the slide rod 67 away from the pressure plate 64 is fixedly connected to the connecting rod 612, and one side of the connecting rod 612 is fixedly connected to the fixing rod 613, and the outer side of the connecting rod 612 is sleeved with an adjusting rod 615, and the adjusting rod 615 is slidably connected to the connecting rod 612, and a screw rod 616 is installed on the outer side of the adjusting rod 615.

[0050] A moving block 69 is slidably connected inside the side groove 68 , the top of the moving block 69 is fixedly connected to the inclined block 610 , one side of the moving block 69 is fixedly connected to a spring 1 611 , and a spring 1 611 is fixedly installed inside the side groove 68 .

[0051] Auxiliary grooves 614 are symmetrically opened on the outer side of the placement plate 2, the fixing rod 613 is slidably connected to the auxiliary groove 614, the screw rod 616 is threadedly connected to the adjustment rod 615, and the screw rod 616 is in contact with the connecting rod 612.

[0052] The outer side of the screw rod 616 is rotatably connected to the rotating sleeve 617, the inner side of the fixed rod 613 is threadedly connected to the screw rod 2 618, one end of the screw rod 2 618 is rotatably connected to the rotating sleeve 617, the outer side of the adjusting rod 615 is fixedly connected to the bottom block 619, the top of the bottom block 619 is slidably connected to the telescopic block 620, the inside of the supporting plate 5 is vertically opened with a vertical groove 621, the inside of the vertical groove 621 is slidably connected to the vertical rod 622, and the bottom of the vertical rod 622 is slidably connected to the pressure rod 627.

[0053] The rotating sleeve 617 is located outside the placement plate 2, an auxiliary spring is fixedly installed inside the bottom block 619, and the bottom surface of the telescopic block 620 is fixedly connected to the auxiliary spring.

[0054] A spring 3 628 is installed inside the vertical rod 622, and a limiting block 626 is fixedly connected to the external side of the vertical rod 622. The external side of the supporting plate 5 away from the placing plate 2 is rotatably connected to a rotating plate 629. The rotating plate 629 is bent, and a clamping rod 630 is fixedly connected to the top of the rotating plate 629.

[0055] A top groove 623 is symmetrically provided on the top of the placement plate 2, and the vertical rod 622 is slidably connected to the top groove 623. A limiting groove 624 is provided inside the supporting plate 5, and the limiting groove 624 is connected to the vertical groove 621. A spring 2 625 is fixedly installed inside the limiting groove 624, and a limiting block 626 is fixedly connected to the spring 2 625. The limiting block 626 is slidably connected to the limiting groove 624.

[0056] The top end of the spring three 628 is fixedly connected to the vertical rod 622 , the bottom end of the spring three 628 is fixedly connected to the pressure rod 627 , and the bottom of the pressure rod 627 fits with the top of the telescopic block 620 .

[0057] The vertical distance from the top surface of the vertical rod 622 to the top surface of the sliding column 61 is equal to the height of the extension of the telescopic block 620, which makes it easier for the subsequent pressing rod 627 to press the telescopic block 620 into the bottom block 619, thereby not blocking the movement of the bottom block 619 and the adjustment rod 615.

[0058] Example 1: Figures 1-10 As shown, an adjustment mechanism 6 is provided. Before use, the position of the carrying plate 5 can be adjusted according to the size of the cargo. By keeping the fixing rod 613 stationary and rotating the screw rod 2 618, the screw rod 2 618 drives the rotating sleeve 617 to move, and the rotating sleeve 617 drives the screw rod 1 616 to move. Loosen the screw rod 1 616, and the screw rod 1 616 drives the adjusting rod 615 to slide on the outside of the connecting rod 612. The adjusting rod 615 drives the bottom block 619 and the telescopic block 620 to move, and the telescopic block 620 drives the carrying plate 5 to move, so that the carrying plate 5 extends outward, thereby realizing the position adjustment of the carrying plate 5 until the two sides of the cargo are flush with the sides of the two carrying plates 5. After adjustment, tighten the screw rod 1 616 to fix the adjusting rod 615 and the connecting rod 612.

[0059] Then, the goods are placed on the top of the placement plate 2. The goods first contact the vertical rod 622. Since the elastic coefficient of spring three 628 is greater than the elastic coefficient of the auxiliary spring at the bottom of the telescopic block 620, the vertical rod 622 drives the pressure rod 627 to squeeze the telescopic block 620 through spring three 628, so that the telescopic block 620 slides completely into the bottom block 619. At this time, the telescopic block 620 will not drive the supporting plate 5 to move. The goods then compress the vertical rod 622 and the sliding column 61, and the vertical rod 622 compresses the spring three 628. The vertical rod 622 slides on the pressure rod 627, and the sliding column 61 descends to drive the connecting plate 63 and the pressure plate 64 to press down. The pressure plate 64 squeezes the inclined surface of the inclined block 610, so that the inclined block 610 drives the sliding rod 67 to move. The bottom end of the vertical groove 621 can be provided with a retaining ring so that the bottom end height of the pressure rod 627 will not exceed the bottom surface of the supporting plate 5, thereby not blocking the reset of the bottom block 619.

[0060] The inclined block 610 drives the moving block 69 to move, and the moving block 69 compresses the spring 1 611 and slides in the side groove 68. The moving block 69 assists the movement of the inclined block 610, and the spring 1 611 is used to reset the inclined block 610. The slide bar 67 drives the connecting rod 612 and the adjusting rod 615 to move, and the adjusting rod 615 slides outward. The adjusting rod 615 moves to squeeze the lower part of the rotating plate 629, so that the rotating plate 629 rotates, and the clamping rod 630 on the upper part of the rotating plate 629 rotates to clamp the outer side of the cargo, thereby achieving auxiliary fixation of the cargo, reducing the situation of slipping during cargo transportation, and improving the stability of the four-way vehicle body 1 in transportation. It solves the problem that the inertia of larger cargo is also greater when moving. If the cargo is not limited, when the four-way vehicle starts and stops, larger cargo is easily affected by inertia and is prone to sliding or offset, affecting the stability and safety of cargo transportation.

[0061] Among them, the lateral moving mechanism 3 and the longitudinal moving mechanism 4 are both existing conventional settings, that is, lateral rollers are installed at the bottom of the front and rear sides of the four-way vehicle body 1, and longitudinal rollers are installed at the bottom of the left and right sides. Of course, a lifting mechanism is provided inside the four-way vehicle body 1, and the lifting mechanism is used to control the height of the longitudinal rollers so that they are separated from or in contact with the ground.

[0062] Reinforcement mechanisms 7 are symmetrically arranged on both sides of the placement plate 2. The reinforcement mechanism 7 includes an upper sleeve 71 and a lower sleeve 72. An inner rod 75 is installed between the upper sleeve 71 and the lower sleeve 72. Springs 76 are sleeved on the outer sides of the upper sleeve 71 and the lower sleeve 72.

[0063] The upper sleeve 71 is rotatably connected to the bottom of the supporting plate 5, and the lower sleeve 72 is rotatably connected to the outer side of the placement plate 2. The upper sleeve 71 and the lower sleeve 72 are both slidably connected to the inner rod 75. The outer side of the upper sleeve 71 is fixedly connected to the upper plate 73, and the outer side of the lower sleeve 72 is fixedly connected to the lower plate 74. The two ends of the spring four 76 are respectively fixedly connected to the upper plate 73 and the lower plate 74.

[0064] Example 2: Figure 11-13 As shown, a reinforcement mechanism 7 is provided. When the load-bearing plate 5 moves and is adjusted, the load-bearing plate 5 drives the upper sleeve 71 to move, and the position of the lower sleeve 72 remains unchanged. The upper sleeve 71 slides on the outside of the inner rod 75, and the lower sleeve 72 slides on the outside of the inner rod 75, so that the distance between the upper sleeve 71 and the lower sleeve 72 increases, and the upper sleeve 71 drives the upper plate 73 to move. The upper plate 73 cooperates with the lower plate 74 to stretch the spring four 76, so that the spring four 76 assists the movement of the upper sleeve 71. When the load-bearing plate 5 is reset, the elastic force of the spring four 76 can also assist the reset of the upper sleeve 71 and the load-bearing plate 5. Through the cooperation of the upper sleeve 71, the inner rod 75 and the lower sleeve 72, the load-bearing plate 5 can be better supported, the structural strength of the load-bearing plate 5 is improved, and it is convenient for supporting and using goods.

[0065] Working principle: When using this device, first, Figures 1-13 As shown, the driving assembly 8 adjusts the moving direction of the four-way vehicle body 1 through the horizontal moving mechanism 3 and the longitudinal moving mechanism 4, and can adjust the position of the load-bearing plate 5 according to the size of the cargo. By keeping the fixed rod 613 stationary, the screw rod 2 618 is rotated, and the screw rod 2 618 drives the rotating sleeve 617 to move, and the rotating sleeve 617 drives the screw rod 1 616 to move. Loosen the screw rod 1 616, and the screw rod 1 616 drives the adjustment rod 615 to slide on the outside of the connecting rod 612. The adjustment rod 615 drives the bottom block 619 and the telescopic block 620 to move, and the telescopic block 620 drives the load-bearing plate 5 to move, so that the load-bearing plate 5 extends outward, thereby realizing the position adjustment of the load-bearing plate 5 until the two sides of the cargo are flush with the sides of the two load-bearing plates 5. After adjustment, tighten the screw rod 1 616 to fix the adjustment rod 615 and the connecting rod 612.

[0066] Then place the goods on the top of the placement plate 2. The goods first contact the vertical rod 622. Since the elastic coefficient of spring three 628 is greater than the elastic coefficient of the auxiliary spring at the bottom of the telescopic block 620, the vertical rod 622 drives the pressure rod 627 to squeeze the telescopic block 620 through spring three 628, so that the telescopic block 620 slides completely into the bottom block 619. At this time, the telescopic block 620 will not drive the supporting plate 5 to move. The goods then compress the vertical rod 622 and the sliding column 61. The vertical rod 622 compresses spring three 628. The vertical rod 622 slides on the pressure rod 627. The sliding column 61 descends and drives the connecting plate 63 and the pressure plate 64 to press down. The pressure plate 64 squeezes the inclined surface of the inclined block 610, so that the inclined block 610 drives the sliding rod 67 to move.

[0067] The inclined block 610 drives the moving block 69 to move, and the moving block 69 compresses the spring 1 611 and slides in the side groove 68. The moving block 69 assists the movement of the inclined block 610, and the spring 1 611 is used to reset the inclined block 610. The slide bar 67 drives the connecting rod 612 and the adjusting rod 615 to move, and the adjusting rod 615 slides outward. The adjusting rod 615 moves to squeeze the lower part of the rotating plate 629, so that the rotating plate 629 rotates, and the clamping rod 630 on the upper part of the rotating plate 629 rotates to clamp the outside of the cargo.

[0068] When the load-bearing plate 5 moves and is adjusted, the load-bearing plate 5 drives the upper sleeve 71 to move, and the position of the lower sleeve 72 remains unchanged. The upper sleeve 71 slides on the outside of the inner rod 75, and the lower sleeve 72 slides on the outside of the inner rod 75, so that the distance between the upper sleeve 71 and the lower sleeve 72 increases, and the upper sleeve 71 drives the upper plate 73 to move. The upper plate 73 cooperates with the lower plate 74 to stretch the spring four 76, so that the spring four 76 assists the movement of the upper sleeve 71. When the load-bearing plate 5 is reset, the elastic force of the spring four 76 can also assist the reset of the upper sleeve 71 and the load-bearing plate 5. Through the cooperation of the upper sleeve 71, the inner rod 75 and the lower sleeve 72, the load-bearing plate 5 can be better supported, the structural strength of the load-bearing plate 5 is improved, and it is convenient for supporting and using goods.

[0069] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0070] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heavy-duty four-way vehicle with an adjustable cargo area, comprising a four-way vehicle body (1), a transverse moving mechanism (3), a longitudinal moving mechanism (4), a drive assembly (8), and a placement plate (2) fixedly mounted on the top of the four-way vehicle body (1), wherein two sides of the placement plate (2) are symmetrically mounted with bearing plates (5); It is characterized in that Also includes: An adjustment mechanism (6) is symmetrically provided inside the placement plate (2), and reinforcement mechanisms (7) are symmetrically provided on both sides of the placement plate (2); The adjustment mechanism (6) includes a slide post (61) and an inner groove (62), wherein the inner groove (62) is provided inside the four-way vehicle body (1), the bearing plate (5) is slidably connected to the inner groove (62), the bottom of the slide post (61) is fixedly connected to a connecting plate (63), the bottom of the connecting plate (63) is symmetrically fixedly connected to a pressure plate (64), the interior of the placement plate (2) is symmetrically provided with a slide groove (65), one side of the interior of the slide groove (65) is fixedly connected to a fixed block (66), and the interior of the fixed block (66) is slidably connected to a slide rod (67); The top of the four-way vehicle body (1) is symmetrically provided with side grooves (68); the side of the slide rod (67) close to the pressure plate (64) is fixedly connected to an inclined block (610); the inclined surface of the inclined block (610) abuts against the pressure plate (64); the end of the slide rod (67) away from the pressure plate (64) is fixedly connected to a connecting rod (612); one side of the connecting rod (612) is fixedly connected to a fixed rod (613); the outer side of the connecting rod (612) is sleeved with an adjusting rod (615); the adjusting rod (615) is slidably connected to the connecting rod (612); and a screw rod (616) is installed on the outer side of the adjusting rod (615); The outer side of the screw rod (616) is rotatably connected to a rotating sleeve (617), the inner side of the fixed rod (613) is threadedly connected to the screw rod (618), one end of the screw rod (618) is rotatably connected to the rotating sleeve (617), the outer side of the adjusting rod (615) is fixedly connected to a bottom block (619), the top of the bottom block (619) is slidably connected to a telescopic block (620), the interior of the supporting plate (5) is vertically provided with a vertical groove (621), the interior of the vertical groove (621) is slidably connected to a vertical rod (622), and the bottom of the vertical rod (622) is slidably connected to a pressure rod (627); A spring three (628) is installed inside the vertical rod (622), and a limiting block (626) is fixedly connected to an external side of the vertical rod (622). A rotating plate (629) is rotatably connected to the external side of the supporting plate (5) away from the placement plate (2). The rotating plate (629) is bent, and a pressing rod (630) is fixedly connected to the top of the rotating plate (629).

2. The heavy-duty four-way vehicle with adjustable cargo area according to claim 1, characterized in that: The side groove (68) is internally slidably connected to a moving block (69), the top of the moving block (69) is fixedly connected to an inclined block (610), one side of the moving block (69) is fixedly connected to a spring (611), and the inside of the side groove (68) is fixedly installed with a spring (611).

3. The heavy-duty four-way vehicle with adjustable cargo area according to claim 1, characterized in that: Auxiliary grooves (614) are symmetrically provided on the outer side of the placement plate (2); the fixing rod (613) is slidably connected to the auxiliary groove (614); the screw rod (616) is threadedly connected to the adjustment rod (615); and the screw rod (616) is in contact with the connecting rod (612).

4. The heavy-duty four-way vehicle with adjustable cargo area according to claim 1, characterized in that: The rotating sleeve (617) is located outside the placement plate (2), an auxiliary spring is fixedly installed inside the bottom block (619), and the bottom surface of the telescopic block (620) is fixedly connected to the auxiliary spring.

5. The heavy-load four-way vehicle with adjustable cargo area according to claim 1, characterized in that: A top groove (623) is symmetrically provided on the top of the placement plate (2), the vertical rod (622) is slidably connected to the top groove (623), a limiting groove (624) is provided inside the bearing plate (5), the limiting groove (624) is connected to the vertical groove (621), a second spring (625) is fixedly installed inside the limiting groove (624), the limiting block (626) is fixedly connected to the second spring (625), and the limiting block (626) is slidably connected to the limiting groove (624).

6. The heavy-load four-way vehicle with adjustable cargo area according to claim 1, characterized in that: The top end of the spring three (628) is fixedly connected to the vertical rod (622), the bottom end of the spring three (628) is fixedly connected to the pressure rod (627), and the bottom end of the pressure rod (627) is in contact with the top of the telescopic block (620).

7. The heavy-duty four-way vehicle with adjustable cargo area according to claim 1, characterized in that: The vertical distance from the top surface of the vertical rod (622) to the top surface of the sliding column (61) is equal to the height of the extension of the telescopic block (620), which facilitates the subsequent pressing rod (627) to press the telescopic block (620) into the bottom block (619), thereby not blocking the movement of the bottom block (619) and the adjustment rod (615).

8. The heavy-load four-way vehicle with adjustable cargo area according to claim 1, characterized in that: The reinforcement mechanism (7) comprises an upper sleeve (71) and a lower sleeve (72), an inner rod (75) is installed between the upper sleeve (71) and the lower sleeve (72), and a spring (76) is sleeved on the outer sides of the upper sleeve (71) and the lower sleeve (72).

9. The heavy-load four-way vehicle with adjustable cargo area according to claim 8, characterized in that: The upper sleeve (71) is rotatably connected to the bottom of the supporting plate (5), and the lower sleeve (72) is rotatably connected to the outer side of the placement plate (2). The upper sleeve (71) and the lower sleeve (72) are both slidably connected to the inner rod (75). The outer side of the upper sleeve (71) is fixedly connected to the upper plate (73), and the outer side of the lower sleeve (72) is fixedly connected to the lower plate (74). The two ends of the spring (76) are respectively fixedly connected to the upper plate (73) and the lower plate (74).

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