A palletizing trolley and a positioning device for fixing the trolley

Abstract

The present application relates to a kind of trolley and positioning device, in particular to a kind of stacking trolley and a kind of positioning device of trolley.A kind of stacking trolley, comprising: support base, width adjusting mechanism, length adjusting mechanism, movement device;The movement device is set to the support base below, for driving support base moves relative to ground;The support base includes first rim, second rim, third rim, fourth rim;The first rim, the second rim, the third rim, the fourth rim are sequentially connected in head, and form frame;The length adjusting mechanism includes first limit plate, second limit plate, slide rail adjusting mechanism;Accurate and fast stacking is realized using width adjusting mechanism and length adjusting mechanism.

Description

Technical Field

[0001] This invention relates to a trolley and a positioning device, and more particularly to a palletizing trolley and a positioning device for the trolley. Background Technology

[0002] Currently, in some manufacturing sectors, raw materials such as pipe fittings need to be placed according to specific rules for subsequent processing steps. Operators then manually place and stack these materials according to these rules. In the existing material cart model, materials are neatly placed on the cart for easy transfer to the next process. The placement and positioning of materials on the cart are often done manually. However, due to the large quantity of materials, the high stacking height, and the lack of positioning limits, manual placement is time-consuming, labor-intensive, and lacks the required accuracy. Summary of the Invention

[0003] The purpose of this invention is to solve the above problems and provide a palletizing trolley that can accurately and quickly palletize materials, automatically calibrate and position the placed materials, and quickly adjust the palletizing size according to different sizes of products of the same type.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A palletizing trolley includes: a support base, a width adjustment mechanism, a length adjustment mechanism, and a motion device;

[0006] The motion device is located below the support base and is used to drive the support base to move relative to the ground;

[0007] The support base includes a first perimeter, a second perimeter, a third perimeter, and a fourth perimeter;

[0008] The first edge, the second edge, the third edge, and the fourth edge are connected end to end to form a frame;

[0009] The length adjustment mechanism includes a first limiting plate, a second limiting plate, and a slide rail adjustment mechanism;

[0010] The first limiting plate is fixedly disposed above one side of the support base, and the second limiting plate is disposed above the other side of the support base through the slide rail adjustment mechanism; the first limiting plate and the second limiting plate are parallel to each other;

[0011] The slide rail adjustment mechanism is mounted on the support base and can cause the second limiting plate to reciprocate along the length of the first or third perimeter.

[0012] The first limiting plate and the second limiting plate are respectively provided with symmetrically arranged width adjustment mechanisms on their inner sides; the width adjustment mechanisms can be adjusted according to different material thicknesses.

[0013] Furthermore, the slide rail adjustment mechanism includes a first slider, a first slide rail matching the slider, a slide rail plate fixed below the first slide rail, and a second limiting base plate fixed on the first slider; a second limiting plate is provided on the second limiting base plate; the first slide rail, the first slider, and the slide rail plate are symmetrically arranged about the line connecting the centers of the second perimeter and the fourth perimeter; one end of the slide rail plate is connected to the second perimeter, and the other end is connected to the fourth perimeter; the first slider can move along the first slide rail to a suitable position according to the length of the material.

[0014] Furthermore, a positioning mechanism is provided below the length adjustment mechanism; the positioning mechanism includes a micro-adjustment block, an adjustment base plate, a positioning block, and a positioning rod; Adjustable base plate One end of the device is connected to the second perimeter, and the other end is connected to the fourth perimeter, and it is disposed between the symmetrically arranged slide rails; the micro-adjustment block is fixedly connected to the adjustment base plate; the micro-adjustment block includes a first part and a second part, and the second limiting base plate is fixedly connected above the first part; the second part is provided with a first waist-shaped hole, and the positioning block is C-shaped with its opening facing downward and matching the second part; the positioning rod can be connected to the first waist-shaped hole through the opening on the positioning block to fix the positioning block to the adjustment base plate.

[0015] A symmetrically arranged second limit plate calibration mechanism is provided below the second limit plate, including a calibration slide rail, a front blocking block, a rear blocking block, a first spring, a positioning pin, and a second slider. The calibration slide rail is fixedly connected to the upper two sides of the second limit base plate. The front blocking block and the rear blocking block are respectively fixed to both ends of the calibration slide rail. The second slider matches the calibration slide rail. The second limit plate is fixedly connected to one side of the second slider, and a positioning hole is opened on the other side, which can be fixed by the positioning pin. The positioning pin is connected to one end of the first spring, and the other end of the first spring is connected to the extension plate of the second limit base plate.

[0016] Furthermore, the width adjustment mechanism includes a first fixed limiting rod, a first movable limiting rod, a first movable adjusting plate, a first limiting base plate, and a second fixed limiting rod, a second movable limiting rod, and a second movable adjusting plate, all symmetrically arranged.

[0017] The first limiting base plate is disposed above the support base, and the first limiting plate is fixedly disposed on the first limiting base plate;

[0018] The first movable adjustment plate overlaps the top of the first limiting base plate and is located on the inner side of the first limiting plate;

[0019] The first movable adjustment plate has second oblong holes at both ends along its length, and at least one third oblong hole along its length. The third oblong hole is parallel to the second oblong hole and does not interfere with each other. The third oblong hole is closer to the first limiting plate than the second oblong hole.

[0020] The first movable adjustment plate is provided with at least one first fixed limiting rod. One end of the first fixed limiting rod is fixedly connected to the first movable adjustment plate, and the other end is a free end. The first fixed limiting rod is vertically arranged outside the third oblong hole and aligned with the third oblong hole along the length direction.

[0021] The first limiting base plate is provided with at least one first movable limiting rod. The first movable limiting rod is vertically arranged and passes through the third waist-shaped hole. The material can be clamped between the first movable limiting rod and the first fixed limiting rod.

[0022] The second movable adjustment plate overlaps the upper part of the second limiting base plate and is located on the inner side of the second limiting plate;

[0023] The second movable adjustment plate has fifth oblong holes at both ends along its length, and at least one fourth oblong hole along its length. The fourth oblong hole is parallel to the second oblong hole and does not interfere with each other. The fourth oblong hole is closer to the second limiting plate than the fifth oblong hole.

[0024] The second movable adjustment plate is provided with at least one second fixed limiting rod. One end of the second fixed limiting rod is fixedly connected to the second movable adjustment plate, and the other end is a free end. The second fixed limiting rod is vertically arranged outside the fourth oblong hole and aligned with the third oblong hole along the length direction.

[0025] The second limiting base plate is provided with at least one second movable limiting rod. The second movable limiting rod is set vertically, with one end passing through the fourth waist-shaped hole and fixedly connected to the second limiting base plate, and the other end being a free end. Material can be clamped between the second movable limiting rod and the second fixed limiting rod.

[0026] The positions of the first fixed limiting rod, the first movable limiting rod, the second fixed limiting rod, and the second movable limiting rod correspond to each other.

[0027] Furthermore, the free ends of the first fixed limiting rod, the first movable limiting rod, the second fixed limiting rod, and the second movable limiting rod are trapezoidal with a narrow top and a wide bottom.

[0028] Furthermore, a handle is fixedly provided on the third perimeter; a limit plate handle is provided on the rear limit plate facing the rear of the vehicle.

[0029] Furthermore, the motion device includes two sets of wheels, which are located below the support base. The wheel on one side of the trolley handle is a directional wheel; the wheel on the other side is a swivel wheel.

[0030] Furthermore, the vehicle positioning mechanism includes a head limiting plate, a guide wheel, a tail limiting plate, and a positioning mechanism reset plate. The head limiting plate is disposed on the first perimeter and faces outward. The guide wheel is disposed below the adjusting base plate. The positioning mechanism reset plate is disposed below the adjusting base plate and is located between the guide wheel and the third perimeter. The tail limiting plate is disposed on the third perimeter and faces outward. The head limiting plate includes a crash plate and a sensing plate. The crash plate is located on both sides of the sensing plate, and the thickness of the crash plate is greater than the thickness of the sensing plate. Uriage rubber is disposed on the surface of the crash plate. One end of the tail limiting plate is fixed to the third perimeter, and the other end extends downward beyond the third perimeter.

[0031] A trolley positioning device includes a palletizing trolley as described above, a trolley sensing mechanism, a locking mechanism, and a pair of positioning square tubes; the trolley sensing mechanism includes a sensor and a positioning base plate; the positioning base plate is fixedly connected to the ground, and the sensor is fixedly connected to the positioning base plate; the positioning square tubes are fixedly connected to the ground, one end of the positioning square tube is fixedly connected to the trolley sensing mechanism, and the other end is a free end with a flared opening; the locking mechanism is fixed to the ground, and the center position of the locking mechanism is collinear with the center position of the pair of positioning square tubes; the locking mechanism includes a foot pedal, a first linkage rod, symmetrically arranged second linkage rods, a linkage base, a locking mechanism base plate, a limiting block, and a first buckle; the locking mechanism base plate is fixedly disposed on the ground. Above the surface, the linkage base is disposed on the base plate of the locking mechanism. The first linkage rod and the second linkage rod are respectively disposed on both sides of the linkage base, and the two form a lever connection relationship. The end of the first linkage rod has an upwardly oriented first protrusion. The foot pedal is fixedly connected to the second linkage rod. A first buckle is disposed between the foot pedal and the linkage base. The end of the first buckle has an upwardly protruding L-shaped end. The first buckle, the second linkage rod, and the foot pedal can form a lever movement relationship together with the first linkage rod. The installation distance between the locking mechanism and the trolley sensing mechanism matches the length of the palletizing trolley, so that the first buckle of the tail limiting plate abuts against each other to fix the palletizing trolley.

[0032] Furthermore, a positioning block is provided on the outer side of the second linkage rod, and the positioning block is fixed on the base plate of the locking mechanism; a ball positioning screw is embedded on the side of the positioning block facing the second linkage rod, and a first positioning hole is opened on the side of the second linkage rod facing the positioning block, which matches the ball positioning screw. When the foot pedal is subjected to force and moves downward, the foot pedal can be fixed and maintained in the pressed state.

[0033] The beneficial effects of this plan are:

[0034] 1) Precise and rapid palletizing is achieved by using width adjustment mechanism and length adjustment mechanism;

[0035] 2) Automatic calibration of the placed materials is achieved through a positioning mechanism and a second limit plate calibration mechanism;

[0036] 3) The trolley positioning device enables the trolley to be parked stably, facilitating palletizing or unloading. Attached Figure Description

[0037] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Attached image description:

[0039] Figure 1 The three-dimensional palletizing cart of this embodiment of the invention Figure 1 ;

[0040] Figure 2 for Figure 1 A magnified view of a portion of area A;

[0041] Figure 3 for Figure 1 A magnified view of a portion of area B;

[0042] Figure 4 for Figure 1 A magnified view of a portion of region C;

[0043] Figure 5 The three-dimensional palletizing cart of this embodiment of the invention Figure 2 ;

[0044] Figure 6 for Figure 5 A magnified view of a portion of region D;

[0045] Figure 7 The three-dimensional representation of the palletizing trolley and positioning device in this embodiment of the invention. Figure 1 ;

[0046] Figure 8 This is a perspective view of the locking mechanism according to an embodiment of the present invention;

[0047] Figure 9 This is a perspective view of the head limiting plate according to an embodiment of the present invention;

[0048] Figure 10 This is a perspective view of the vehicle sensing mechanism according to an embodiment of the present invention;

[0049] Figure 11 This is a side view of the palletizing trolley and positioning device according to an embodiment of the present invention;

[0050] Figure 12 The three-dimensional representation of the palletizing trolley and positioning device in this embodiment of the invention. Figure 2 ;

[0051] In the diagram: 1. Support base; 11. First perimeter; 12. Second perimeter; 13. Third perimeter; 14. Fourth perimeter; 2. Width adjustment mechanism; 21. First fixed limit rod; 22. First movable limit rod; 23. First movable adjustment plate; 24. First limiting base plate; 25. Second fixed limit rod; 26. Second movable limit rod; 27. Second movable adjustment plate; 281. Second oblong hole; 282. Third oblong hole; 283. Fourth oblong hole; 284 Fifth oblong hole; 29. ​​Free end; 3. Length adjustment mechanism; 31. First limiting plate; 32. Second limiting plate; 321. Limiting plate handle; 33. Slide rail adjustment mechanism; 331. First slider; 332. First slide rail; 333. Slide rail plate; 334. Second limiting base plate; 4. Motion device; 41. Directional wheel; 42. Universal wheel; 5. Positioning mechanism; 51. Micro-adjustment block; 511. First Part 1; 512. Second Part; 5121. First Waist-shaped Hole; 52. Adjusting Base Plate; 53. Positioning Block; 54. Positioning Rod; 6. Second Limiting Plate Calibration Mechanism; 61. Calibration Slide Rail; 62. Front Block; 63. Rear Block; 64. First Spring; 65. Positioning Pin; 66. Second Slider; 7. Cart Handle; 8. Cart Positioning Mechanism; 81. Head Limiting Plate; 811. Anti-collision Plate; 812. Sensing Plate; 82. Guide 83. Rear limit plate; 84. Positioning mechanism reset plate; 9. Car sensing mechanism; 91. Sensor; 92. Positioning base plate; 10. Locking mechanism; 101. Foot pedal; 102. First linkage rod; 103. Second linkage rod; 104. Linkage base; 105. Locking mechanism base plate; 106. Limit block; 1061. Ball positioning screw; 1062. First positioning hole; 107. First buckle; 11. Positioning square tube. Detailed Implementation

[0052] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0053] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0054] like Figure 1 As shown, a palletizing trolley includes: a support base 1, a width adjustment mechanism 2, a length adjustment mechanism 3, and a motion device 4; the motion device 4 is disposed below the support base 1 and is used to drive the support base 1 to move relative to the ground; the support base 1 includes a first perimeter 11, a second perimeter 12, a third perimeter 13, and a fourth perimeter 14; the first perimeter 11, the second perimeter 12, the third perimeter 13, and the fourth perimeter 14 are connected end to end to form a frame; the length adjustment mechanism 3 includes a first limiting plate 31, a second limiting plate 32, and a slide rail adjustment mechanism 33; the first limiting plate 31... The first limiting plate 31 and the second limiting plate 32 are fixedly installed above one side of the support base 1, and the second limiting plate 32 is installed above the other side of the support base 1 via the slide rail adjustment mechanism 33; the first limiting plate 31 and the second limiting plate 32 are parallel to each other; the slide rail adjustment mechanism 33 is installed on the support base 1 and can make the second limiting plate 32 reciprocate along the length direction of the first perimeter 11 or the third perimeter 13; the inner sides of the first limiting plate 31 and the second limiting plate 32 are respectively provided with symmetrically arranged width adjustment mechanisms 2; the width adjustment mechanism 2 can be adjusted according to different material thicknesses. The material positioning and handling trolley of the present invention can accurately and quickly stack materials, and can also automatically calibrate and position the placed materials. It can also quickly adjust the stacking size according to different sizes of products of the same type, making it easy to operate and more efficient. The trolley is equipped with a length adjustment mechanism 3 that can move forward and backward, which adjusts the position of the rear limiting plate on the first slide rail according to the different lengths of the materials, limiting the forward and backward direction of the materials; the trolley is equipped with a width adjustment mechanism 2 that can move left and right, which is adjusted in advance according to the thickness of the materials before stacking. This successfully solved the problem of needing secondary processing after manual palletizing by trolleys, making it easier for subsequent processes to accurately pick up and process materials.

[0055] like Figure 2As shown, the slide rail adjustment mechanism 33 further includes a first slider 331, a first slide rail 332 matching the slider, a slide rail plate 333 fixed below the first slide rail 332, and a second limiting base plate 334 fixedly disposed on the first slider 331; a second limiting plate 32 is disposed on the second limiting base plate 334; the first slide rail 332, the first slider 331, and the slide rail plate 333 are symmetrically arranged about the line connecting the centers of the second perimeter 12 and the fourth perimeter 14; one end of the slide rail plate 333 is connected to the second perimeter 12, and the other end is connected to the fourth perimeter 14; the first slider 331 can move along the first slide rail 332 to a suitable position according to the length of the material. The slide rail adjustment mechanism 33 of the present invention is symmetrically arranged and installed at the bottom of the second limiting plate 32. The movement of the second limiting plate 32 is achieved by the sliding connection between the slider and the cooperating first slide rail 332. The slide rail is set on the slide rail plate 333. The length of the first slide rail 332 is less than the total length of the trolley and does not conflict with the position of the first limit plate 31 and the first movable adjustment plate 23.

[0056] like Figure 3As shown, further, a positioning mechanism 5 is provided below the length adjustment mechanism 3; the positioning mechanism 5 includes a micro-adjustment block 51, an adjustment base plate 52, a positioning block 53, and a positioning rod 54; one end of the adjustment base plate 52 is connected to the second perimeter 12, and the other end is connected to the fourth perimeter 14, and is disposed between the symmetrically arranged slide rails 333; the micro-adjustment block 51 is fixedly connected to the adjustment base plate 52; the micro-adjustment block 51 includes a first part 511 and a second part 512, and the second limiting base plate 334 is fixedly connected above the first part 511; the second part 512 is provided with a first waist-shaped hole 5121, and the positioning block 53 is C-shaped with its opening facing downward and matching the second part 512; the positioning rod 54 can be connected to the first waist-shaped hole 5121 through the opening on the positioning block 53 to fix the positioning block 53 to the adjustment base plate 52. In this embodiment, the adjusting base plate 52 is provided with equidistant positioning holes on both sides along the length direction, and the positioning block 53 is also provided with corresponding protrusions. After the rear limiting plate determines the position according to the length of the material, it is fixed by the positioning mechanism 5. Specifically, the opening of the C-shaped positioning block 53 is aligned with the second part 512 of the micro-motion adjusting block 51 and pressed down, inserted into the positioning holes on both sides. Then, according to the preset gap between the second limiting plate 32 and the end of the material, the micro-motion adjusting plate is adjusted so that a suitable gap can be made, and the positioning rod 54 is fixedly connected to the first waist-shaped hole 5121 through the through hole on the positioning block 53. This serves as the positioning function of the rear limiting plate. There is some gap between the second limiting plate 32 and the end of the material, which makes it easier to pick up the material and provides a better positioning function for the second limiting plate 32, preventing it from moving randomly and affecting the stacking effect.

[0057] like Figure 4As shown, further, a symmetrically arranged second limiting plate calibration mechanism 6 is provided below the second limiting plate 32, including a calibration slide rail 61, a front blocking block 62, a rear blocking block 63, a first spring member 64, a positioning pin 65, and a second slider 66; the calibration slide rail 61 is fixedly connected to the upper two sides of the second limiting base plate 334; the front blocking block 62 and the rear blocking block 63 are respectively fixed to both ends inside the calibration slide rail 61; the second slider 66 matches the calibration slide rail 61, and the second limiting plate 32 is fixedly connected to a part above the second slider 66, and a positioning hole is opened on the other part, which can be fixed by the positioning pin 65; the positioning pin 65 is connected to one end of the first spring member 64, and the other end of the first spring member 64 is connected to the extension plate of the second limiting base plate 334. In this embodiment, when the materials are placed, there may be uneven material lengths, which may cause the rear limiting plate to tilt. The present invention can keep the rear limiting plate horizontally aligned by pushing and pulling the rear limiting plate through the second limiting plate calibration mechanism 6. The front blocking block 62 and the rear blocking block 63 serve to block the second slider 66 to prevent the second slider 66 from derailing relative to the calibration slide rail 61. Under the elastic force of the positioning pin 65 and the first spring 64, the pushed rear limiting plate will automatically reset and maintain a horizontal state.

[0058] like Figure 5As shown in Figure 6, further, the width adjustment mechanism 2 includes a first fixed limiting rod 21, a first movable limiting rod 22, a first movable adjusting plate 23, a first limiting base plate 24, a second fixed limiting rod 25, a second movable limiting rod 26, and a second movable adjusting plate 27, all symmetrically arranged. The first limiting base plate 24 is disposed above the support base 1. The first movable adjusting plate 23 overlaps the first limiting base plate 24 and is disposed inside the first limiting plate 31. The first movable adjusting plate 23 has second oblong holes 281 at both ends along its length direction, and at least one hole is formed on the first movable adjusting plate 23 along its length direction. The third oblong hole 282 is parallel to and does not interfere with the second oblong hole 281; the third oblong hole 282 is closer to the first limiting plate 31 than the second oblong hole 281; the first movable adjusting plate 23 is provided with at least one first fixed limiting rod 21, one end of the first fixed limiting rod 21 is fixedly connected to the first movable adjusting plate 23, and the other end is a free end; the first fixed limiting rod 21 is vertically arranged outside the third oblong hole 282 and aligned with the third oblong hole 282 along the length direction; the first limiting base plate 24 is provided with at least one first movable limiting rod 22, the third oblong hole 282 is closer to the second oblong hole 281 than the second oblong hole 281. A movable limiting rod 22 is vertically arranged and passes through the third oblong hole 282. By moving the first movable adjusting plate, the first movable rod moves relative to the third oblong hole, and material can be clamped between the first movable limiting rod 22 and the first fixed limiting rod 21. The second movable adjusting plate 27 overlaps the second limiting base plate 334 and is arranged inside the second limiting plate 32. The two ends of the second movable adjusting plate 27 are provided with fifth oblong holes 284 along the length direction, and at least one fourth oblong hole 283 is provided on the second movable adjusting plate 27 along the length direction. The fourth oblong hole 283 and the fifth oblong hole 284 are connected. The oblong holes 284 are parallel to each other and do not interfere with each other; the fourth oblong hole 283 is closer to the second limiting plate than the fifth oblong hole 284; the second movable adjusting plate 27 is provided with at least one second fixed limiting rod 25, one end of the second fixed limiting rod 25 is fixedly connected to the second movable adjusting plate 27, and the other end is a free end; the second fixed limiting rod 25 is vertically arranged outside the fourth oblong hole 283 and aligned with the fourth oblong hole 283 along the length direction; the positions of the first fixed limiting rod 21, the first movable limiting rod 22, the second fixed limiting rod 25, and the second movable limiting rod 26 correspond to each other. The first fixed limiting rod 21 and the first movable limiting rod 22, the second fixed limiting rod 25, and the second movable limiting rod 26 are used in pairs to insert the material between the two limiting rods; the specific process is as follows: adjust the width adjusting mechanism 2 according to the width or thickness of the material; move the first movable adjusting plate 23 or the second movable adjusting plate 27, such as... Figure 6As shown, the first movable adjusting plate 23 can move to the left; the fixed limiting rod fixed on the movable adjusting plate will widen the gap between it and the movable limiting rod fixed on the limiting base plate to accommodate materials; the length of the third oblong hole 282 is the distance the movable adjusting plate can move, that is, the distance the fixed limiting rod can move relative to the movable limiting rod; after the movement is complete, it is connected to the positioning hole on the first limiting base plate 24 through the second oblong hole 281 by screws to fix it; this completes the width adjustment step, which is used for better stacking of materials. The operation process of the second movable adjusting plate 27 is the same as that of the first movable adjusting plate, and the fourth oblong hole 283 and the fifth oblong hole 284 correspond to the positions of the third oblong hole and the second oblong hole.

[0059] Furthermore, the free ends 29 of the first fixed limiting rod 21, the first movable limiting rod 22, the second fixed limiting rod 25, and the second movable limiting rod 26 are trapezoidal, narrower at the top and wider at the bottom. This design can guide materials during stacking, saving workers time and effort when placing them.

[0060] Furthermore, a trolley handle 7 is fixedly provided on the third perimeter 13. A limit plate handle 321 is provided on the rear limit plate facing the rear of the vehicle; in this embodiment, the trolley handle 7 can facilitate the pushing or pulling of the trolley and its movement to or away from the trolley positioning mechanism 85; the limit plate handle 321 can facilitate the displacement of the rear limit plate.

[0061] Furthermore, the motion device 4 includes two sets of wheels, which are located below the support base 1. The wheel on one side of the trolley handle 7 is a directional wheel 41; the wheel on the other side is a swivel wheel 42, which can facilitate pushing and changing direction of the trolley during operation.

[0062] Furthermore, the vehicle positioning mechanism 85 includes a head limiting plate 81, a guide wheel 82, a tail limiting plate 83, and a positioning mechanism 5 reset plate. The head limiting plate 81 is disposed on the first perimeter 11 and faces outward. The guide wheel 82 is disposed below the adjusting base plate 52. The positioning mechanism 5 reset plate is disposed below the adjusting base plate 52 and is located between the guide wheel 82 and the third perimeter 13. The tail limiting plate 83 is disposed on the third perimeter 13 and faces outward. The head limiting plate 81 includes a crash plate 811 and a sensing plate 812. The crash plate 811 is located on both sides of the sensing plate 812, and the thickness of the crash plate 811 is greater than the thickness of the sensing plate 812. An urethane rubber is disposed on the surface of the crash plate 811. One end of the tail limiting plate 83 is fixed to the third perimeter 13, and the other end extends downward beyond the third perimeter 13. The center positions of the head limiting plate, the guide wheel 82, the tail limiting plate 83, and the reset plate of the positioning mechanism 5 are all on a straight line. The anti-collision urethane rubber adds cushioning when the trolley is positioned and pushed into the positioning device, reducing collision wear and extending the trolley's service life. The sensing plate 812 can cooperate with the sensor 91 of the trolley positioning device to read the trolley's model number, thereby determining the material's model number, facilitating retrieval and recording by staff. The guide wheel 82 can cooperate with the symmetrically arranged positioning square tube 11, ensuring that when the trolley is pushed into the positioning device, it aligns with the front opening of the positioning square tube 11 beforehand. The guide wheel 82 moves along the inside of the positioning square tube 11, driving the trolley correctly onto the trolley sensing mechanism 9. The tail limiting plate 83, the reset plate of the positioning mechanism 5, and the locking mechanism 10 work together to fix the trolley's position after positioning. The reset plate of the positioning mechanism 5 is higher than the sum of the initial heights of the first linkage rod 102 and the first buckle 107. That is, when the trolley pushes the trolley positioning device, the reset plate of the positioning mechanism 5 will not touch or interfere with the first linkage rod 102, the foot pedal 101 and the first buckle 107.

[0063] like Figures 7-10 As shown, a trolley positioning device includes a palletizing trolley as described above, a trolley sensing mechanism 9, a locking mechanism 10, and a pair of positioning square tubes 11. The trolley sensing mechanism 9 includes a sensor 91 and a positioning base plate 92. The positioning base plate 92 is fixedly connected to the ground, and the sensor 91 is fixedly connected to the positioning base plate 92. The positioning square tubes 11 are fixedly connected to the ground, with one end fixedly connected to the trolley sensing mechanism 9 and the other end being a free end with a flared opening. The locking mechanism 10 is fixed to the ground, and the center of the locking mechanism 10 is on the same straight line as the center of the pair of positioning square tubes 11. Figure 8As shown, the locking mechanism 10 includes a foot pedal 101, a first linkage rod 102, symmetrically arranged second linkage rods 103, a linkage base 104, a locking mechanism base plate 105, a limiting block 106, and a first buckle 107. The locking mechanism base plate 105 is fixedly mounted on the ground, and the linkage base 104 is mounted on the locking mechanism base plate 105. The first linkage rod 102 and the second linkage rod 103 are respectively located on both sides of the linkage base 104, and a lever connection is formed between them. The end of the first linkage rod 102 has an upwardly oriented first protrusion, and the second linkage rod 103 is fixedly connected to the foot pedal 101, a first linkage rod 102, a second linkage rod 103, a linkage base 104, a locking mechanism base plate 105, a limiting block 106, and a first buckle 107. A foot pedal 101 is provided, and a first latching member 107 is provided between the foot pedal 101 and the linkage base 104. The end of the first latching member 107 has an upwardly protruding L-shaped end. The first latching member 107, the second linkage rod 103, and the foot pedal 101 can form a lever motion relationship together with the first linkage rod 102. In this embodiment, the first linkage rod 102 is hinged to a pin and disposed in the linkage base 104. The installation distance between the locking mechanism 10 and the trolley sensing mechanism 9 is matched with the length of the palletizing trolley, so that the tail limiting plate 83 abuts against the first latching member to fix the palletizing trolley. The initial state of the locking mechanism 10 is as follows: Figure 8 As shown, the second linkage rod 103 is in a horizontal suspended state, and the first linkage rod 102 is initially higher than the height of the second linkage rod 103 under the action of the lever. One end is connected to the linkage base 104, and the other end is inclined downward.

[0064] Furthermore, a limiting block 106 is provided on the outer side of the second linkage rod 103, and the limiting block 106 is fixed on the base plate 105 of the locking mechanism; a ball positioning screw 1061 is embedded on the side of the limiting block 106 facing the second linkage rod 103, and a first positioning hole 1062 is opened on the side of the second linkage rod 103 facing the limiting block 106, the size and position of which match the ball positioning screw 1061. When the foot pedal 101 is subjected to force and moves downward, the foot pedal 101 can be fixed and maintained in the pressed state.

[0065] like Figure 11 , 12As shown, the specific operation process of the trolley and the trolley positioning mechanism 85 is as follows: First, push the trolley to the corresponding position, align the head limiting plate 81 with the trolley sensing mechanism 9, and push the trolley towards the trolley sensing mechanism 9. The guide wheels 82 on the trolley enter the paired positioning square steel, guiding the trolley to move forward towards the trolley sensing mechanism 9. When the trolley enters the positioning device, the positioning mechanism reset plate 84 does not contact the initial state of the locking mechanism 10. When the head limiting plate 81 is pushed to the trolley sensing mechanism 9, the trolley is pushed towards the trolley sensing mechanism 9. When the 9-way contact occurs, the lower end of the tail limiting plate 83 contacts the uppermost end of the first latching member 107, slightly pressing down the first latching member 107. However, this does not cause the second linkage rod 103 to be fixedly connected to the limiting block 106, allowing the tail limiting plate 83 to pass through the first latching member 107. After the first latching member 107 is slightly pressed down, it returns to its initial horizontal state. At this time, the trolley moves backward, and the tail limiting plate 83 abuts against the head of the first latching member 107, thus restricting the trolley to that position. Figure 11 In the middle, the tail limiting plate 83 abuts against the opening of the L-shaped end of the first buckle 107, preventing the trolley from moving out of the locking mechanism 10. When the trolley is to be pulled out, the foot pedal 101 is pressed down forcefully, causing the second linkage rod 103 to tilt downwards. This allows the ball bearing positioning screw 1061 of the limiting block 106 to be inserted into the first positioning hole 1062 on the second linkage rod 103. The second linkage rod 103 remains tilted downwards, causing the height of the first latch 107 to decrease accordingly. This also causes the second linkage rod 103 to rise to a certain height under the action of leverage. The first latch 107 and the tail limiting plate 83 then do not resist each other, allowing the trolley to be pulled out. During the pulling process, the positioning mechanism reset plate 84 contacts the top of the raised first linkage rod 102. Under the force of the positioning mechanism reset plate 84, the first linkage rod 102 moves downwards. At this time, under the action of leverage, the second linkage rod 103 disengages from the fixed connection with the limiting block 106, allowing the first linkage rod 102 and the second linkage rod 103 to return to their initial positions, completely pulling out the trolley. This also facilitates the subsequent pushing of the trolley back in for continued use of the locking mechanism 10.

[0066] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0067] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope.

Claims

1. A palletizing trolley, characterized in that, include: Support base, width adjustment mechanism, length adjustment mechanism, motion device; The motion device is located below the support base and is used to drive the support base to move relative to the ground; The support base includes a first perimeter, a second perimeter, a third perimeter, and a fourth perimeter; The first edge, the second edge, the third edge, and the fourth edge are connected end to end to form a frame; The length adjustment mechanism includes a first limiting plate, a second limiting plate, and a slide rail adjustment mechanism; The first limiting plate is fixedly disposed above one side of the support base, and the second limiting plate is disposed above the other side of the support base through the slide rail adjustment mechanism; the first limiting plate and the second limiting plate are parallel to each other; The slide rail adjustment mechanism is mounted on the support base and can cause the second limiting plate to reciprocate along the length of the first or third perimeter. A symmetrically arranged width adjustment mechanism is provided between the first limiting plate and the second limiting plate; the width adjustment mechanism can be adjusted according to different material thicknesses; The slide rail adjustment mechanism includes a first slider, a first slide rail matching the first slider, a slide rail plate fixed below the first slide rail, and a second limiting base plate fixedly disposed on the first slider; a second limiting plate is disposed on the second limiting base plate; the first slide rail, the first slider, and the slide rail plate are symmetrically arranged about the center line connecting the second perimeter and the fourth perimeter; one end of the slide rail plate is connected to the second perimeter, and the other end is connected to the fourth perimeter; the first slider can move along the first slide rail to a suitable position according to the length of the material; Below the length adjustment mechanism is a positioning mechanism; the positioning mechanism includes a micro-adjustment block, an adjustment base plate, a positioning block, and a positioning rod; one end of the adjustment base plate is connected to the second perimeter, and the other end is connected to the fourth perimeter, and is disposed between the symmetrically arranged slide rails; the micro-adjustment block is fixedly connected to the adjustment base plate; the micro-adjustment block includes a first part and a second part, the first part is fixedly connected to the second limiting base plate, and the second part is provided with a first oblong hole; the positioning block is C-shaped, with its opening facing downwards and matching the second part; the positioning rod connects to the first oblong hole through the opening on the positioning block, fixing the positioning block to the adjustment base plate; A symmetrically arranged second limit plate calibration mechanism is provided below the second limit plate, including a calibration slide rail, a front blocking block, a rear blocking block, a first spring, a positioning pin, and a second slider. The calibration slide rail is fixedly connected to the upper two sides of the second limit base plate. The front blocking block and the rear blocking block are respectively fixed to both ends of the calibration slide rail. The second slider matches the calibration slide rail. The second limit plate is fixedly connected to one side of the second slider, and a positioning hole is opened on the other side, which can be fixed by the positioning pin. The positioning pin is connected to one end of the first spring, and the other end of the first spring is connected to the extension plate of the second limit base plate.

2. A palletizing trolley according to claim 1, characterized in that, The width adjustment mechanism includes a first fixed limiting rod, a first movable limiting rod, a first movable adjusting plate, a first limiting base plate, a second fixed limiting rod, a second movable limiting rod, and a second movable adjusting plate; The first limiting base plate is disposed above the support base, and the first limiting plate is fixedly disposed on the first limiting base plate; The first movable adjustment plate overlaps the top of the first limiting base plate and is located on the inner side of the first limiting plate; The first movable adjustment plate has second oblong holes at both ends along its length, and at least one third oblong hole is also provided on the first movable adjustment plate along its length. The third oblong hole is parallel to the second oblong hole and does not interfere with each other. The third oblong hole is closer to the first limiting plate than the second oblong hole. The first movable adjustment plate is provided with at least one first fixed limiting rod. One end of the first fixed limiting rod is fixedly connected to the first movable adjustment plate, and the other end is a free end. The first fixed limiting rod is vertically arranged outside the third oblong hole and aligned with the third oblong hole along the length direction. The first limiting base plate is provided with at least one first movable limiting rod. The first movable limiting rod is set vertically, with one end passing through the third waist-shaped hole and fixedly connected to the first limiting base plate, and the other end being a free end. Material can be clamped between the first movable limiting rod and the first fixed limiting rod. The second movable adjustment plate overlaps the upper part of the second limiting base plate and is located on the inner side of the second limiting plate; The second movable adjustment plate has fifth oblong holes at both ends along its length, and at least one fourth oblong hole along its length. The fourth oblong hole and the fifth oblong hole are parallel to each other and do not interfere with each other. The fourth oblong hole is closer to the second limiting plate than the fifth oblong hole. The second movable adjustment plate is provided with at least one second fixed limiting rod. One end of the second fixed limiting rod is fixedly connected to the second movable adjustment plate, and the other end is a free end. The second fixed limiting rod is vertically arranged outside the fourth oblong hole and aligned with the fourth oblong hole along the length direction. The second limiting base plate is provided with at least one second movable limiting rod. The second movable limiting rod is set vertically, with one end passing through the fourth waist-shaped hole and fixedly connected to the second limiting base plate, and the other end being a free end. Material can be clamped between the second movable limiting rod and the second fixed limiting rod. The positions of the first fixed limiting rod, the first movable limiting rod, the second fixed limiting rod, and the second movable limiting rod correspond to each other.

3. A palletizing trolley according to claim 2, characterized in that, The free ends of the first fixed limiting rod, the first movable limiting rod, the second fixed limiting rod, and the second movable limiting rod are trapezoidal with a narrow top and a wide bottom.

4. A palletizing trolley according to claim 2, characterized in that, A handle is fixedly provided on the third perimeter; a limit plate handle is provided on the side of the second limit plate facing the rear of the vehicle.

5. A palletizing trolley according to claim 4, characterized in that, The motion device includes two sets of wheels, which are located below the support base. The wheels on the side of the trolley handle are directional wheels. The other wheel is a swivel wheel.

6. A palletizing trolley according to claim 1, characterized in that, A vehicle positioning mechanism is provided, including a head limiting plate, guide wheels, a tail limiting plate, and a positioning mechanism reset plate. The head limiting plate is disposed on the first perimeter and faces outward. The guide wheels are disposed below the adjusting base plate. The positioning mechanism reset plate is disposed below the adjusting base plate and is located between the guide wheels and the third perimeter. The tail limiting plate is disposed on the outside of the third perimeter. The head limiting plate includes a crash plate and a sensing plate. The crash plate is located on both sides of the sensing plate, and the thickness of the crash plate is greater than the thickness of the sensing plate. Uriage rubber is disposed on the surface of the crash plate. One end of the tail limiting plate is fixed to the third perimeter, and the other end extends downward beyond the third perimeter.

7. A trolley positioning device, comprising a palletizing trolley as described in claim 6, a trolley sensing mechanism, a locking mechanism, and a pair of positioning square tubes; the trolley sensing mechanism includes a sensor and a positioning base plate; the positioning base plate is fixedly connected to the ground, and the sensor is fixedly connected to the positioning base plate; the positioning square tubes are fixedly connected to the ground, one end of the positioning square tube is fixedly connected to the trolley sensing mechanism, and the other end is a free end with a flared opening; the locking mechanism is fixed to the ground, and the center position of the locking mechanism is on the same straight line as the center position of the pair of positioning square tubes; the locking mechanism includes a foot pedal, a first linkage rod, symmetrically arranged second linkage rods, a linkage base, a locking mechanism base plate, a limiting block, and a first buckle; the locking mechanism base plate is fixedly disposed on the ground. On the ground, the linkage base is set on the base plate of the locking mechanism. The first linkage rod and the second linkage rod are respectively set on both sides of the linkage base, and the two form a lever connection relationship. The end of the first linkage rod has a first protrusion that faces upward. The foot pedal is fixedly connected to the second linkage rod. A first buckle is set between the foot pedal and the linkage base. The end of the first buckle has an L-shaped part that faces upward. The first buckle, the second linkage rod, the foot pedal and the first linkage rod together form a lever movement relationship. The installation distance between the locking mechanism and the trolley sensing mechanism is matched with the length of the palletizing trolley, so that the tail limiting plate abuts against the first buckle to fix the palletizing trolley.

8. A car positioning device according to claim 7, characterized in that, A positioning block is provided on the outer side of the second linkage rod, and the positioning block is fixed on the base plate of the locking mechanism; a ball positioning screw is embedded on the side of the positioning block facing the second linkage rod, and a first positioning hole is opened on the side of the second linkage rod facing the positioning block. Its size and position match the ball positioning screw. When the foot pedal is subjected to force and moves downward, the foot pedal is fixed and maintained in the pressed state.

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