Mixed loading material carrying frame capable of stretching and retracting in four directions

Abstract

A four-direction telescopic mixed loading material carrying frame belongs to the technical field of material carrying frames, four corners of the material carrying frame are provided with corner supports, the corner supports are connected with opposite corner supports through short telescopic pipes and short telescopic bases in sequence, and opposite short telescopic pipes are connected with opposite corner supports to form short telescopic edges of the material carrying frame. The angle supports sequentially pass through the long telescopic pipes and the long telescopic bases, the opposite long telescopic pipes are connected with the opposite angle supports to form the long telescopic edges of the material carrying frame, the batten assemblies are arranged on the long telescopic bases, the short telescopic bases are connected with the middle bases through the sleeves, and the middle bases are connected with the opposite short telescopic bases through the sleeves. Buffering pieces are arranged on the short telescopic base and the middle base. The internal size and the external size can be adjusted in four directions, and the application range is greatly widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of material carriers, and in particular relates to a material carrier capable of being telescopic and mixed in four directions. Background Art

[0002] The carrier is mostly used for loading and transporting products, and the products are fixed by the limit devices on it. The existing carriers are of fixed size and the position of the limit devices on them is also fixed, that is, one specification of carrier corresponds to one specification of product. However, there are many product specifications, and each specification of product corresponds to a size of carrier, which requires a large number of carriers and limit devices of different sizes, which is not only too costly in transportation, but also wastes space when empty. Summary of the invention

[0003] In order to solve the above-mentioned problems, the utility model proposes: a mixed loading rack which can be telescopically mounted in four directions, wherein corner supports are arranged at the four corners of the loading rack, the corner supports are connected to the opposite corner supports via a short telescopic tube, a short telescopic base, and an opposite short telescopic tube in sequence to form the short telescopic side of the loading rack, the corner supports are connected to the opposite corner supports via a long telescopic tube, a long telescopic base, and an opposite long telescopic tube in sequence to form the long telescopic side of the loading rack, the slat assembly is arranged on the long telescopic base, the short telescopic base is connected to the middle base via a sleeve, the middle base is connected to the opposite short telescopic base via a sleeve, and buffer components are arranged on the short telescopic base and the middle base.

[0004] Furthermore, the angle support includes a short L-shaped plate, a side baffle, a support hole plate, a surrounding plate, a connecting bent plate, a U-shaped sliding member, a limit plate, and a U-shaped connecting plate. The support hole plate is welded with the side baffle and the L-shaped plate to form a front end slide. The support hole plate is welded with the connecting bent plate and the surrounding plate to form a right side slide. A U-shaped connecting plate is welded at the front end of the connecting bent plate. The U-shaped sliding member is fixed on the connecting bent plate. The U-shaped sliding member is welded on the inner side of the U-shaped connecting plate. Threaded holes of equal size are distributed above the support hole plate. Limit pins are welded on both sides of the front end slide and the right side slide respectively. The limit plate is fixedly connected to the short L-shaped plate, the connecting bent plate, and the U-shaped connecting plate.

[0005] Furthermore, the long telescopic tube is composed of a long hole plate and a long tube, and the long hole plate is welded on the top of the long tube; long tube circular holes with a spacing of 50 mm are opened on the top of the long tube, and a long tube slide groove for sliding of the U-shaped sliding part is opened on the side of the long tube, and long plate circular holes of equal size and staggered distribution are opened on the top of the long hole plate, and the long plate circular holes are connected to the threaded holes through screws.

[0006] Furthermore, the long telescopic base includes a long base side tube, a short bent plate with holes, a long bent plate with holes, and a long supporting plate. A slide groove is opened in the front of the long base side tube, and four equal-sized circular holes are opened at both ends of the upper wall, and threaded rings are welded in the circular holes; the threaded rings on the long base side tube are connected to the long tube circular holes of the long telescopic tube by screws, the short bent plate with holes and the long bent plate with holes are welded on the front side of the long base side tube, and circular holes of equal sizes are staggered above the short bent plate with holes; circular holes of equal sizes are staggered above the long bent plate with holes, and long bent plate holes of equal sizes are staggered on the left and right sides of the long bent plate with holes; the long supporting plate is welded under the long base side tube, and a long base slide groove for sliding of the U-shaped sliding part is arranged on the side wall of the long base side tube.

[0007] Furthermore, the slat assembly includes a long limit device, a perforated slat, a connecting assembly, and a short limit device. The perforated slat is connected to the short bent plate with holes and the long bent plate with holes through the connecting assembly. Two rows of circular holes of equal size are distributed above the perforated slat. The short limit device and the long limit device are detachably fixed above the perforated slat through the connecting assembly.

[0008] Furthermore, the short telescopic tube is composed of a short hole plate and a short tube. The short hole plate is welded above the short tube. Short tube circular holes with a spacing of 50 mm are opened above the short tube. Short plate circular holes of equal size and staggered distribution are opened above the short hole plate. The short plate circular holes are connected to the threaded holes through screws.

[0009] Further, the short telescopic base includes a short base orifice plate, a base short tube, a connecting orifice plate, a base long tube, a base side tube, a short support plate, a connecting tube, and a U-shaped plate. Four equal-sized circular holes are opened on the left and right sides above the base side tube, and a threaded ring is welded in the circular hole. The threaded ring on the base side tube is connected to the short tube circular hole of the short telescopic tube by a screw. The connecting tube is welded between the base long tube and the base side tube, the short base orifice plate and the connecting tube are welded together, the U-shaped plate is welded on the right side of the base long tube, the connecting orifice plate is welded above the U-shaped plate, the base short tube is welded in the long tube rectangular hole of the base long tube, the orifice rectangular hole of the short base orifice plate, and the side tube rectangular tube of the base side tube in sequence, two equal-sized circular holes are opened on the left and right sides above the base long tube, and a threaded ring is welded in the circular hole. The base long tube is connected to the U-shaped connecting plate, and circular holes of equal sizes are staggered above the short base orifice plate. The short limit device and the long limit device are detachably fixed on the short base orifice plate, and the short support plate is welded below the base side tube.

[0010] Furthermore, the middle base includes a long hole bent plate, a middle base short tube, a middle base long tube, a fixed square tube, a pad, and an intermediate square tube. The long hole bent plate is welded to the outside of the middle base long tube, two middle base long tube rectangular holes are opened in the middle of the middle base long tube, and the middle base short tube is welded in the middle base long tube rectangular hole; the fixed square tube is welded between two adjacent middle base long tubes, and circular holes of equal size and equal spacing are opened above the fixed square tube; the intermediate square tube is welded in the middle base long tube rectangular holes of two adjacent middle base long tubes, and the pad is detachably arranged above the long hole bent plate and the middle base short tube, the base short tube is connected to the middle base short tube through a sleeve, and the side wall of the sleeve is opened A long hole of the casing, a round hole of the bottom short tube is opened on the side wall of the base short tube, a middle base short tube round hole is opened on the side wall of the middle base short tube, the long hole at one end of the casing is connected to the round hole of the bottom short tube by a screw, and the long hole at the other end of the casing is connected to the round hole of the middle base short tube by a screw, the connecting orifice plate is connected to the long hole bent plate, the connecting orifice plate is opened with round holes of the orifice plate, the long hole bent plate has long holes of equal sizes arranged on the long hole bent plate, the long holes of the long hole bent plate are connected to the round holes of the orifice plate by screws, the middle base long tube is connected to the long bent plate with holes, the bottom long tube round holes are opened on both sides of the middle base long tube at the front and rear ends, the side wall of the long bent plate with holes has long holes in the bent plate, and the round holes of the bottom long tube are connected to the long holes in the bent plate by screws.

[0011] Furthermore, the buffer assembly includes a buffer tube, a buffer plate and a buffer long plate. The buffer assembly is fixed to the connecting hole plate through a first bolt assembly, or is fixed to the pad and the long hole bent plate through a first bolt assembly. The buffer plate and the buffer long plate are arranged on the buffer tube.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model realizes that both the internal and external dimensions can be adjusted in four directions, and the scope of application is greatly improved.

[0014] 2. The length and width directions of the shape can be adjusted in large steps of 50mm to achieve four-way telescopic movement.

[0015] 3. The large-step telescopic system is controlled by screws, which is flexible and convenient to operate, and can well control the small-angle tilt of the telescopic base when it is at the maximum size.

[0016] 4. Fine-tuning of the length and width of the shape is achieved in small steps of 2 mm.

[0017] 5. The internal slat assembly achieves fine-tuning in small steps of 3 mm.

[0018] 6. When the rack is empty, it can be adjusted to the minimum size to save space.

[0019] 7. An oblique limiting orifice plate is set for special-shaped contents, and the limiting device can be placed at will according to different shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 Schematic diagram of the corner support structure Figure 1 ;

[0022] Figure 3 It is a schematic diagram of the long telescopic tube structure;

[0023] Figure 4 It is a schematic diagram of the long telescopic base structure;

[0024] Figure 5 It is a schematic diagram of the short telescopic tube structure;

[0025] Figure 6 It is a schematic diagram of the short telescopic base structure;

[0026] Figure 7 This is a schematic diagram of the middle base structure;

[0027] Figure 8 It is a schematic diagram of the cooperation between the angle support and the long telescopic tube and the short telescopic tube;

[0028] Fig. 9 for Figure 8 A top view of

[0029] Fig.10 for Fig. 9 A magnified schematic diagram of point A;

[0030] Fig.11 It is a schematic diagram of the coordination of the corner support, the long telescopic tube and the long telescopic base;

[0031] Fig.12 for Fig.11 An enlarged schematic diagram of point B;

[0032] Fig.13 It is a schematic diagram of the coordination of the angle support, the short telescopic tube and the short telescopic base;

[0033] Fig.14 for Fig.13 An enlarged schematic diagram of point C;

[0034] Fig.15 It is a schematic diagram of the cooperation between the slat assembly and the long telescopic base;

[0035] Fig.16 for Fig.14 An enlarged schematic diagram of point D;

[0036] Fig.17 It is a schematic diagram of the coordination between the long telescopic base and the middle base;

[0037] Fig.18 It is a schematic diagram of the coordination of the short telescopic base, the middle base and the sleeve;

[0038] Fig.19 This is a schematic diagram of the long tube structure of the middle base;

[0039] Fig. 20 for Fig.16 An enlarged schematic diagram of point E;

[0040] Fig.21 for Fig.16 An enlarged schematic diagram of point F;

[0041] Fig. 22 It is a schematic diagram of the coordination between the slats, the middle base and the short telescopic base.

[0042] Fig.23 This is a schematic diagram of the minimum size state of the utility model.

[0043] Fig.24 It is a schematic diagram of the stacking state of the utility model.

[0044] Fig.25 This is a schematic diagram of the folding and stacking state of the utility model.

[0045] Fig.26 Schematic diagram of the corner support structure Figure 2 .

[0046] Fig. 27 Schematic diagram of the corner support structure Figure 3 .

[0047] Among them, the accompanying drawings are marked as follows: 1, corner support, 2, long telescopic tube, 3, long telescopic base, 4, slat assembly, 5, buffer assembly, 6, short telescopic tube, 7, short telescopic base, 8, middle base, 9, sleeve, 91, sleeve long hole, 11, L-shaped plate, 12, limit pin, 13, side baffle, 14, support hole plate, 15, enclosure, 16, connecting bent plate, 17, U-shaped sliding member, 18, limit plate, 19, U-shaped connecting plate, 2 1. Long hole plate, 22. Long tube, 31. Screw, 32. Threaded ring, 33. Long base side tube, 34. Short bent plate with hole, 35. Long bent plate with hole, 36. Long support plate, 41. Long limit device, 42. Plate strip with hole, 43. Connecting assembly, 44. Short limit device, 51. Buffer tube, 52. Buffer plate, 53. Buffer long plate, 54. First bolt assembly, 61. Short hole plate, 62. Short tube, 71. Short base hole plate , 72, short tube of base, 73, connecting hole plate, 74, long tube of base, 75, side tube of base, 76, short support plate, 77, connecting tube, 78, U-shaped plate, 81, long hole bent plate, 82, short tube of middle base, 83, long tube of middle base, 84, fixed square tube, 85, pad, 86, middle square tube, 141, threaded hole, 211, round hole of long plate, 221, round hole of long tube, 222, long tube slide, 331, long base slide , 351, long hole in bent plate, 431, connecting small plate, 432, handle, 433, second bolt assembly, 611, short plate round hole, 621, short tube round hole, 711, orifice plate rectangular hole, 721, bottom short tube round hole, 731, orifice plate round hole, 741, long tube rectangular hole, 751, side tube rectangular tube, 811, long hole in bent plate, 821, short tube round hole in middle base, 831, bottom long tube round hole, 832, middle long tube rectangular hole. DETAILED DESCRIPTION

[0048] A four-way telescopic mixed loading rack, such as Figure 1 As shown, corner supports 1 are provided at the four corners of the loading rack, and the corner supports 1 are connected to the opposite corner supports 1 through a short telescopic tube 6, a short telescopic base 7, and an opposite short telescopic tube 6 in sequence to form a short telescopic side of the loading rack, and the corner supports 1 are connected to the opposite corner supports 1 through a long telescopic tube 2, a long telescopic base 3, and an opposite long telescopic tube 2 in sequence to form a long telescopic side of the loading rack, and the slat assembly 4 is arranged on the long telescopic base 3, the short telescopic base 7 is connected to the middle base 8 through a sleeve 9, and the middle base 8 is connected to the opposite short telescopic base 7 through the sleeve 9, and a buffer 5 is arranged on the short telescopic base 7 and the middle base 8.

[0049] Among them, Figure 2 , Figure 26-Figure 27As shown, the angle support 1 includes a short L-shaped plate 11, a side baffle 13, a support hole plate 14, a surrounding plate 15, a connecting bent plate 16, a U-shaped sliding member 17, a limit plate 18, and a U-shaped connecting plate 19. The support hole plate 14 is welded with the side baffle 13 and the L-shaped plate 11 to form a front end slideway. The support hole plate 14 is welded with the connecting bent plate 16 and the surrounding plate 15 to form a right side slideway. A U-shaped connecting plate 19 is welded at the front end of the connecting bent plate 16. The U-shaped sliding member 17 is fixed on the connecting bent plate 16. The U-shaped sliding member 17 is welded on the inner side of the U-shaped connecting plate 19. Threaded holes 141 of equal sizes are distributed above the support hole plate 14. Limit pins 12 are respectively welded on both sides of the front end slideway and the right side slideway. The limit plate 18 is fixedly connected to the short L-shaped plate 11, the connecting bent plate 16, and the U-shaped connecting plate 19.

[0050] Among them, Figure 3 As shown, the long telescopic tube 2 is composed of a long hole plate 21 and a long tube 22. The long hole plate 21 is welded above the long tube 22. Long tube circular holes 221 with a spacing of 50 mm are opened above the long tube 22, and long tube slide grooves 222 for sliding of the U-shaped sliding member 17 are opened on the side of the long tube 22. Long plate circular holes 211 of equal size and staggered distribution are opened above the long hole plate 21, and the long plate circular holes 211 are connected to the threaded holes 141 through screws 31.

[0051] Among them, Figure 4 As shown, the long telescopic base 3 includes a long base side tube 33, a short bent plate 34 with holes, a long bent plate 35 with holes, and a long support plate 36. A slide groove is opened in the front of the long base side tube 33, and four equal-sized circular holes are opened at both ends of the upper wall, and a threaded ring 32 is welded in the circular hole; the threaded ring 32 on the long base side tube 33 is connected to the long tube circular hole 221 of the long telescopic tube 2 by a screw 31, and the short bent plate 34 with holes and the long bent plate 35 with holes are welded to the front side of the long base side tube 33, and circular holes of equal sizes are staggered above the short bent plate 34 with holes; circular holes of equal sizes are staggered above the long bent plate 35 with holes, and long bent plate holes 351 of equal sizes are staggered on the left and right sides of the long bent plate 35 with holes; the long support plate 36 is welded below the long base side tube 33, as shown in FIG. Fig.12 As shown, the side wall of the long base side tube 33 is provided with a long base sliding groove 331 for the U-shaped sliding member 17 to slide.

[0052] Among them, Fig.15 As shown, the slat assembly 4 includes a long limit device 41, a perforated slat 42, a connecting assembly 43, and a short limit device 44. The perforated slat 42 is connected to the perforated short bent plate 34 and the perforated long bent plate 35 through the connecting assembly 43. Two rows of circular holes of equal size are distributed above the perforated slat 42. The short limit device 44 and the long limit device 41 are detachably fixed above the perforated slat 42 through the connecting assembly 43.

[0053] Among them, Figure 5 , Fig.10As shown, the short telescopic tube 6 is composed of a short hole plate 61 and a short tube 62. The short hole plate 61 is welded above the short tube 62. Short tube circular holes 621 with a spacing of 50 mm are opened above the short tube 62. Short plate circular holes 611 of equal size and staggered distribution are opened above the short hole plate 61. The short plate circular holes 611 are connected to the threaded holes 141 through screws 31.

[0054] Among them, Figure 6 As shown, the short telescopic base 7 includes a short base hole plate 71, a base short tube 72, a connecting hole plate 73, a base long tube 74, a base side tube 75, a short support plate 76, a connecting tube 77, and a U-shaped plate 78. Four equal-sized circular holes are opened on the left and right sides above the base side tube 75, and the threaded ring 32 is welded in the circular hole. The threaded ring 32 on the base side tube 75 is connected to the short tube circular hole 621 of the short telescopic tube 6 by a screw 31. The connecting tube 77 is welded between the base long tube 74 and the base side tube 75. The short base hole plate 71 is welded to the connecting tube 77. The U-shaped plate 78 is welded to the right side of the base long tube 74, and the connecting hole plate 73 is welded above the U-shaped plate 78. Fig.21 As shown, the short tube 72 of the base is welded in turn in the long tube rectangular hole 741 of the long tube 74 of the base, the orifice rectangular hole 711 of the short base orifice plate 71, and the side tube rectangular tube 751 of the base side tube 75. Two equal-sized circular holes are opened on the left and right sides above the long tube 74 of the base, and the threaded ring 32 is welded in the circular hole. The long tube 74 of the base is connected to the U-shaped connecting plate 19. Equal-sized circular holes are staggered above the short base orifice plate 71. The short limit device 44 and the long limit device 41 are detachably fixed on the short base orifice plate 71, and the short support plate 76 is welded below the side tube 75 of the base.

[0055] Among them, Figure 7 , Figure 17-Figure 21As shown, the middle base 8 includes a long hole bent plate 81, a middle base short tube 82, a middle base long tube 83, a fixed square tube 84, a pad 85, and an intermediate square tube 86. The long hole bent plate 81 is welded to the outside of the middle base long tube 83, two middle-long tube rectangular holes 832 are opened in the middle of the middle base long tube 83, and the middle base short tube 82 is welded in the middle-long tube rectangular hole 832 of the middle base long tube 83; the fixed square tube 84 is welded between two adjacent middle base long tubes 83, and circular holes of equal size and equal spacing are opened above the fixed square tube 84; the intermediate square tube 86 is welded in the middle-long tube rectangular holes 832 of two adjacent middle base long tubes 83, and the pad 85 is detachably arranged above the long hole bent plate 81 and the middle base short tube 82. The base short tube 72 is connected to the middle base short tube 82 through a sleeve 9, and a sleeve long hole 91 is opened on the side wall of the sleeve 9 A bottom short tube circular hole 721 is provided on the side wall of the base short tube 72, a middle base short tube circular hole 821 is provided on the side wall of the middle base short tube 82, the long hole 91 at one end of the sleeve 9 is connected to the bottom short tube circular hole 721 by a screw, and the long hole 91 at the other end of the sleeve 9 is connected to the middle base short tube circular hole 821 by a screw, the connecting hole plate 73 is connected to the long hole bent plate 81, the connecting hole plate 73 is provided with a hole plate circular hole 731, and the long hole bent plate 81 is provided with long hole bent plate long holes 811 of equal size, and the long hole bent plate long holes 811 are connected to the hole plate circular hole 731 by screws, the middle base long tube 83 is connected to the long bent plate with holes 35, and the bottom long tube circular holes 831 are provided at both ends of the middle base long tube 83, and the side wall of the long bent plate 35 with holes is provided with a bent plate long hole 351, and the bottom long tube circular hole 831 is connected to the bent plate long hole 351 by screws.

[0056] Among them, Fig. 22 As shown, the buffer assembly 5 includes a buffer tube 51, a buffer plate 52 and a buffer long plate 53. The buffer assembly 5 is fixed to the connecting hole plate 73 by a first bolt assembly 54, or is fixed to the pad 85 and the long hole bent plate 81 by a first bolt assembly 54. The buffer plate 52 and the buffer long plate 53 are arranged on the buffer tube 51.

[0057] The angle support is fixed together with the long telescopic tube and the short telescopic tube by bolts. Figure 8-Figure 9 As shown, the short hole plate 61 has staggered circular holes of equal size, and the support hole plate 14 has staggered threaded holes of equal size. Through the staggered distribution of circular holes and the arrangement of threaded holes, when the angle support 1 moves in each small step, two circular holes and threaded holes overlap, as shown in FIG. Fig.10 As shown, the two can be connected by bolts. The short telescopic tube 6 always moves in the groove formed by the L-shaped plate 11 and the side baffle 13. The circular outer surface of the limit pin can make the movement smoother and prevent shaking caused by excessive gap. The connection and movement of the long telescopic tube 2 are the same as those of the short telescopic tube 6. When the long telescopic tube 2 moves, the U-shaped sliding member 17 is always located inside the long tube sliding groove 222 and moves with the movement of the angle support 1.

[0058] One side of the long telescopic tube 2 is connected to the angle support 1 to achieve the change of the external dimensions of the small step diameter, and the other side is connected to the long telescopic base 3 to achieve the change of the external dimensions of the large step diameter. Fig.11 As shown. The long tube 22 is nested inside the long base side tube 33, and the outer bottom of the long tube 22 is tightly attached to the inner bottom of the long base side tube 33. The threaded ring 32 is welded on the top of the long base side tube 33. A number of long tube circular holes 221 of equal size and spacing are placed on the long tube 22. The spacing between the long tube circular holes 221 is equal to the spacing between the circular holes of the long base side tube 33. Whenever the long telescopic tube 2 moves in large steps, the circular holes of the long base side tube 33 will always overlap with the long tube circular holes 221. When the long telescopic tube 2 moves in large steps to the desired position, tighten the screw so that the lower end of the screw will pass through the circular hole above the long base side tube 33 and enter the long tube circular hole 221. At this time, the long telescopic tube 2 and the angle support 1 are fixed, as shown in FIG. Fig.12 As shown. When the long telescopic tube 2 moves inward in a large step, the angle support 1 also moves inward, and the U-shaped sliding member 17 will enter the long base slide groove 331. The screws can be screwed into the threaded circular holes at will. Two screws are sufficient for fixing. Usually the first and fourth screws are selected. The larger the spacing, the more secure the two tubes are connected by screws. The four threaded circular holes can be set to cope with special situations, such as when there is a collision between the screws and the special-shaped contents or when the position of the gripper collides when grabbing the contents, the screw position can be adjusted at will.

[0059] The connection between the short telescopic tube 6 and the short telescopic base 7 is similar to the connection structure between the long telescopic tube 2 and the long telescopic base 3, and the principle is the same. Figure 13-14 As shown. The U-shaped connecting plate 19 is nested inside the base long tube 74, and the bottom of the U-shaped connecting plate 19 is closely attached to the bottom of the inner side of the base long tube 74. The U-shaped connecting plate 19 moves with the angle support 1, and the angle support 1 moves with the short telescopic tube 6. A circular hole is opened on the upper side of the base long tube 74, and a threaded ring is welded in the circular hole. The screw is screwed into the threaded ring. When the short telescopic tube 6 moves to the desired position with a large step diameter, the screw is tightened. At this time, the lower end of the screw is pressed on the outer epithelium of the U-shaped connecting plate 19 to fix it. When it needs to be moved, the screw can be loosened.

[0060] The slat assembly 4 is fixed to the long telescopic base 3 through the connecting assembly 43. The two limiting devices above the slat assembly 4 can be used normally and can be adjusted according to the shape of the contents. Small step adjustment of the internal dimensions is achieved through the arrangement of the hole positions of the perforated slats 42 and the arrangement of the hole positions of the perforated short curved plate 34 and the perforated long curved plate 35. When the perforated slats 42 move in each small step, there will always be two circular holes of the perforated slats 42 that coincide with the circular holes of the perforated long curved plate 35 or the perforated short curved plate 34. The connecting assembly 43 includes a connecting plate 431, a handle 432, and a bolt assembly 433. Two equal-sized circular holes are opened on one side of the connecting plate 431 for connecting bolts, and a handle 432 is welded on the other side. Figure 15-16 When the slat needs to be moved, first loosen the bolt assembly, grab the handle, move the connecting assembly to the position where the round holes overlap, tighten the bolt assembly, and the slat is moved.

[0061] like Fig.17 As shown. The long telescopic base 3 and the middle base 8 are connected together by bolts, and the long curved plate 35 with holes is nested in the long tube 83 of the middle base. The bolts pass through the circular holes 831 of the long tube and the long holes 351 of the curved plate to fix the two. A round through hole is opened on the side of the long tube 83 of the middle base, and a long hole is opened on the side of the long hole 351 of the curved plate. When the long telescopic base 3 needs to move, the bolts are loosened and the long telescopic base 3 is moved. The bolts can slide in the long holes. When it moves to the desired position, the bolts are tightened.

[0062] The middle base 8 and the sleeve 9 are connected together by bolts, and the sleeve 9 and the short telescopic base 7 are also connected together by bolts. Fig.18 Two rectangular through holes are opened on the side of the middle base long tube 83, a rectangular through hole is opened on the short base hole plate 71, a rectangular through hole is opened on the base long tube 74, and the sleeve 9 is nested in the base short tube 72, one side is connected to the middle base 8, and the other side is connected to the short telescopic base 7. Fig.19 As shown, when the sleeve 9 needs to be moved, the bolts are loosened, and one side of the sleeve 9 can move in the base short tube 72 and the middle base long tube 83. Figure 20-21 As shown, when the sleeve is moved, the bolt is loosened and the other side of the sleeve 9 will move in the rectangular holes of the base short tube 72, the base long tube 74, the short base orifice plate 71 and the base side tube 75.

[0063] The buffer assembly 5 includes a buffer tube 51, a buffer material 52, a buffer material 53, and a bolt assembly 54. The buffer assembly 5 is connected to the middle base 8 or the short telescopic base 7 by bolts. Fig. 22 As shown in FIG. 1 , if the buffer assembly 5 is directly connected to the long hole bent plate 81, there is a height difference with the connecting hole plate 73 connected to the short telescopic base 7. Therefore, a pad 85 is placed under the buffer assembly 5 to make all the buffer assemblies 5 on the same horizontal plane to ensure that the placed contents are in a horizontal state. When the width is reduced, the pad can be removed, such as Fig.24As shown, it is a schematic diagram of the stacking state of the utility model, such as Fig.23 As shown in , this is the minimum size of the carrier. Fig.25 FIG. 2 is a schematic diagram of the folded stacking state of the utility model. According to the size and weight distribution of the contents, the buffer assembly can also be connected to the fixed square tube 84 of the middle base by bolts.

[0064] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and concept of the utility model within the technical scope disclosed by the utility model, which should be covered by the protection scope of the utility model.

Claims

1. A four-way telescopic mixed loading rack, characterized in that: Corner supports (1) are arranged at the four corners of the material carrier. The corner supports (1) are connected to the opposite corner supports (1) through a short telescopic tube (6), a short telescopic base (7), and an opposite short telescopic tube (6) in sequence to form a short telescopic side of the material carrier. The corner supports (1) are connected to the opposite corner supports (1) through a long telescopic tube (2), a long telescopic base (3), and an opposite long telescopic tube (2) in sequence to form a long telescopic side of the material carrier. The slat assembly (4) is arranged on the long telescopic base (3). The short telescopic base (7) is connected to the middle base (8) through a sleeve (9). The middle base (8) is connected to the opposite short telescopic base (7) through a sleeve (9). A buffer assembly (5) is arranged on the short telescopic base (7) and the middle base (8).

2. The four-way telescopic mixed loading rack according to claim 1, characterized in that: The angle support (1) comprises a short L-shaped plate (11), a side baffle (13), a support hole plate (14), a surrounding plate (15), a connecting bent plate (16), a U-shaped sliding member (17), a limiting plate (18), and a U-shaped connecting plate (19). The support hole plate (14) is welded with the side baffle (13) and the L-shaped plate (11) to form a front slideway. The support hole plate (14) is welded with the connecting bent plate (16) and the surrounding plate (15) to form a right slideway. The connecting bent plate (16) is welded with the side baffle (13) and the L-shaped plate (11) to form a right slideway. 16) A U-shaped connecting plate (19) is welded at the front end, a U-shaped sliding member (17) is fixed on the connecting bent plate (16), a U-shaped sliding member (17) is welded on the inner side of the U-shaped connecting plate (19), threaded holes (141) of equal size are distributed above the support hole plate (14), limiting pins (12) are welded on both sides of the front slideway and the right slideway respectively, and the limiting plate (18) is fixedly connected to the short L-shaped plate (11), the connecting bent plate (16), and the U-shaped connecting plate (19).

3. The four-way telescopic mixed loading rack according to claim 2, characterized in that: The long telescopic tube (2) is composed of a long hole plate (21) and a long tube (22). The long hole plate (21) is welded on the top of the long tube (22). Long tube circular holes (221) with a spacing of 50 mm are opened on the top of the long tube (22). Long tube sliding grooves (222) for sliding of a U-shaped sliding member (17) are opened on the side of the long tube (22). Long plate circular holes (211) of equal size and staggered distribution are opened on the top of the long hole plate (21). The long plate circular holes (211) are connected to the threaded holes (141) through screws (31).

4. The four-way telescopic mixed loading rack according to claim 3, characterized in that: The long telescopic base (3) comprises a long base side tube (33), a short curved plate with holes (34), a long curved plate with holes (35), and a long supporting plate (36). A sliding groove is opened in the front of the long base side tube (33), and four circular holes of equal size are opened at both ends of the upper wall. The threaded ring (32) is welded in the circular hole; the threaded ring (32) on the long base side tube (33) is connected to the long tube circular hole (221) of the long telescopic tube (2) through a screw (31); the short curved plate with holes (34) and the long curved plate with holes are connected to the long tube circular hole (221) of the long telescopic tube (2). The plate (35) is welded to the front side of the long base side tube (33); round holes of equal size are arranged in a staggered manner above the short curved plate (34) with holes; round holes of equal size are arranged in a staggered manner above the long curved plate (35) with holes; long curved plate holes (351) of equal size are arranged in a staggered manner on the left and right sides of the long curved plate (35) with holes; the long supporting plate (36) is welded to the bottom of the long base side tube (33); and the side wall of the long base side tube (33) is provided with a long base slide groove (331) for sliding the U-shaped sliding member (17).

5. The four-way telescopic mixed loading rack according to claim 4, characterized in that: The slat assembly (4) comprises a long limit device (41), a perforated slat (42), a connecting assembly (43), and a short limit device (44); the perforated slat (42) is connected to a short bent plate (34) with holes and a long bent plate (35) with holes via the connecting assembly (43); two rows of circular holes of equal size are distributed above the perforated slat (42); the short limit device (44) and the long limit device (41) are detachably fixed above the perforated slat (42) via the connecting assembly (43).

6. The four-way telescopic mixed loading carrier as claimed in claim 5, characterized in that: The short telescopic tube (6) is composed of a short hole plate (61) and a short tube (62). The short hole plate (61) is welded on the top of the short tube (62). The top of the short tube (62) is provided with short tube circular holes (621) with a spacing of 50 mm. The top of the short hole plate (61) is provided with short plate circular holes (611) of equal size and staggered distribution. The short plate circular holes (611) are connected to the threaded holes (141) via screws (31).

7. The four-way telescopic mixed loading rack according to claim 6, characterized in that: The short telescopic base (7) comprises a short base orifice plate (71), a base short tube (72), a connecting orifice plate (73), a base long tube (74), a base side tube (75), a short support plate (76), a connecting tube (77), and a U-shaped plate (78). Four equal-sized circular holes are opened on the left and right sides above the base side tube (75), and threaded circular rings (32) are welded in the circular holes. The threaded circular rings (32) on the base side tube (75) are connected to the short tube circular holes (621) of the short telescopic tube (6) by screws (31). The connecting tube (77) is welded between the base long tube (74) and the base side tube (75). The short base orifice plate (71) and the connecting tube (77) are welded together. The U-shaped plate (78) is welded to the base long tube (74). ) on the right side, the connecting hole plate (73) is welded on the top of the U-shaped plate (78), the base short tube (72) is welded in turn in the long tube rectangular hole (741) of the base long tube (74), the hole plate rectangular hole (711) of the short base hole plate (71), and the side tube rectangular tube (751) of the base side tube (75), two equal-sized circular holes are opened on the left and right sides above the base long tube (74), and the threaded ring (32) is welded in the circular holes. The base long tube (74) is connected to the U-shaped connecting plate (19), and equal-sized circular holes are staggered on the top of the short base hole plate (71), the short limit device (44) and the long limit device (41) are detachably fixed on the short base hole plate (71), and the short support plate (76) is welded below the base side tube (75).

8. The four-way telescopic mixed loading carrier as claimed in claim 7, characterized in that: The middle base (8) comprises a long hole bent plate (81), a middle base short tube (82), a middle base long tube (83), a fixed square tube (84), a pad (85), and an intermediate square tube (86); the long hole bent plate (81) is welded to the outside of the middle base long tube (83); two middle-long tube rectangular holes (832) are opened in the middle of the middle base long tube (83); the middle base short tube (82) is welded in the middle-long tube rectangular hole (832) of the middle base long tube (83); the fixed square tube (84) is welded Between two adjacent middle base long tubes (83), circular holes of equal size and equal spacing are opened on the top of the fixed square tube (84); the middle square tube (86) is welded in the middle long tube rectangular holes (832) of the two adjacent middle base long tubes (83); the pad (85) is detachably arranged on the long hole bent plate (81) and the middle base short tube (82); the base short tube (72) is connected to the middle base short tube (82) through a sleeve (9); and a sleeve long hole (91) is opened on the side wall of the sleeve (9) The side wall of the base short tube (72) is provided with a bottom short tube circular hole (721), the side wall of the middle base short tube (82) is provided with a middle base short tube circular hole (821), the long hole (91) at one end of the sleeve (9) is connected to the bottom short tube circular hole (721) by screws, the long hole (91) at the other end of the sleeve (9) is connected to the middle base short tube circular hole (821) by screws, the connecting orifice plate (73) is connected to the long hole bent plate (81), and the connecting orifice plate (73) is provided with an orifice plate circular hole (731), The long hole bent plate (81) is provided with long hole bent plate long holes (811) of equal size in a staggered manner, and the long hole bent plate long holes (811) are connected to the hole plate circular holes (731) by screws. The middle base long tube (83) is connected to the long bent plate with holes (35), and the middle base long tube (83) is provided with bottom long tube circular holes (831) at both front and rear ends of both sides, and the long bent plate with holes (351) is provided on the side wall. The bottom long tube circular holes (831) are connected to the bent plate long holes (351) by screws.

9. The four-way telescopic mixed loading rack according to claim 8, characterized in that: The buffer assembly (5) comprises a buffer tube (51), a buffer plate (52) and a buffer long plate (53); the buffer assembly (5) is fixed to the connecting hole plate (73) by a first bolt assembly (54), or is fixed to the pad (85) and the long hole bent plate (81) by the first bolt assembly (54); and the buffer tube (51) is provided with the buffer plate (52) and the buffer long plate (53).

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