An angle steel transport rack that is easy to pick up and place

Abstract

The present invention discloses an angle steel transport rack that is easy to take and place, belonging to the technical field of transport racks, comprising a base plate, on which a frame assembly and a pressing assembly are arranged. By arranging the frame assembly, under the action of an unfolding unit, the covering frame plate and the placing frame plate 2 can be unfolded in turn, so that the angle steel can be taken and placed from the top of the transport rack by hoisting. By arranging two adjustment side plates, the length of the placement plane can be adjusted according to the length of the angle steel to be stored, so that the transport rack can adapt to the storage requirements of angle steels of different sizes and specifications. By arranging the pressing assembly, under the action of the pressing unit, after the angle steel is placed on the transport rack, the pressing slide plate of each placement area can press and fix the angle steel in the placement area, thereby improving the stability of the angle steel on the transport rack. By arranging a limiting long rod, the position of the unfolding rotating rack and the covering rotating rack can be locked.

Description

Technical Field

[0001] The invention relates to the technical field of transport racks, in particular to an angle steel transport rack which is convenient for taking and placing. Background Art

[0002] Angle steels are usually in the shape of long strips. If they are not properly stacked, they will easily take up a lot of space. Stacking the angle steels neatly can effectively save storage space and improve warehouse utilization. Angle steels are easily damaged during transportation, especially during handling and stacking, where they may be deformed or scratched. Therefore, a transport rack can be used to provide stable support and protection for the angle steels, reduce damage and deformation of the materials, and protect the quality of the materials. The size of the existing angle steel transport rack cannot be adjusted, which limits the angle steels that can be placed and cannot meet the needs of angle steels of different sizes and specifications. In addition, the angle steels need to be placed on the transport rack from the side of the transport rack. Therefore, it is more cumbersome to place longer angle steels. Therefore, the present invention provides an angle steel transport rack that is easy to pick up and place. Summary of the invention

[0003] The present invention aims at the defects in the prior art and provides an angle steel transport rack that is easy to take and place, thereby overcoming the problem that the existing angle steel transport rack cannot be adjusted in size, resulting in large limitations on the angle steels that can be placed, and being unable to meet the needs of angle steels of different sizes and specifications. In addition, the angle steels need to be placed on the transport rack from the side of the transport rack, which makes it more complicated to place longer angle steels.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an angle steel transport rack that is easy to pick up and place, comprising a base plate, a frame assembly is arranged on the base plate, the frame assembly comprises two placing frame plates one, two placing frame plates two, and two covering frame plates, the two placing frame plates one are symmetrically slidably installed on the base plate, an unfolding base is fixedly installed on the base plate, an unfolding rotating frame is rotatably installed on the unfolding base, the two placing frame plates two are symmetrically slidably installed on the unfolding rotating frame, a covering rotating frame is rotatably installed on the unfolding rotating frame, the two covering frame plates are symmetrically slidably installed on the covering rotating frame, the placing frame The first plate is fixedly installed with an adjusting side plate, and the second frame plate and the covering frame plate are provided with sliding grooves that cooperate with the adjusting side plates. An unfolding unit is provided between the unfolding base, the unfolding turntable and the covering turntable. The unfolding unit is used to realize the movement of the unfolding turntable and the covering turntable. A pressing assembly is also provided on the bottom plate. The pressing assembly includes 4 pressing slides. The 4 pressing slides are respectively slidably installed on both sides of the unfolding turntable and the covering turntable. A pressing slide is slidably installed on the bottom plate. A pressing unit is provided between the pressing slide and the pressing slide. The pressing unit is used to realize the movement of the pressing slide.

[0005] Furthermore, four universal wheels are arranged in a rectangular array on the lower surface of the bottom plate, and supporting side plates are symmetrically fixedly arranged on the placing frame plate one and the placing frame plate two. The supporting side plates on the placing frame plate one are used to limit the position of the placing frame plate two, and the supporting side plates on the placing frame plate two are used to limit the position of the covering frame plate.

[0006] Furthermore, the two placing frame plates 1 are slidably matched with each other, the two placing frame plates 2 are slidably matched with each other, and the two covering frame plates are slidably matched with each other. A positioning screw is fixedly installed on the placing frame plate 1, and two positioning pulleys are rotatably installed on the bottom plate. The positioning screw and the corresponding positioning pulley constitute a spiral pair.

[0007] Furthermore, the unfolding unit includes an unfolding slide slidably mounted on the unfolding base, an unfolding ratchet is fixedly mounted on the side of the unfolding slide, an unfolding ratchet 2 is fixedly mounted on the unfolding rotating frame, and an unfolding ratchet 1 is fixedly mounted on the covering rotating frame. The unfolding ratchet constitutes a ratchet mechanism when engaged with the unfolding ratchet 1 and the unfolding ratchet 2 respectively. An unfolding pulley is rotatably mounted on the unfolding base, an unfolding screw is fixedly mounted on the unfolding slide, and the unfolding screw and the unfolding pulley constitute a spiral pair.

[0008] Furthermore, a limiting strip is slidably installed on the unfolding rotating frame, a limiting ratchet ring is fixedly provided at the end of the limiting strip, and a limiting ratchet is also fixedly installed on the covering rotating frame. When the limiting ratchet and the limiting ratchet ring are engaged, a ratchet mechanism is formed. A trapezoidal push block is fixedly provided on the side of the limiting strip, and a strip rotating plate is rotatably installed on the lower end of the unfolding ratchet. A limiting short plate is also fixedly provided on the lower end of the unfolding ratchet. The limiting short plate is used to limit the rotation of the strip rotating plate, and the strip rotating plate is used to push the trapezoidal push block to move.

[0009] Furthermore, an auxiliary slide is slidably installed on the base plate, an auxiliary screw is rotatably installed on the base plate, the auxiliary screw and the auxiliary slide constitute a spiral pair, a limiting slide is slidably installed on the auxiliary slide, limiting long rods are fixedly provided at both ends of the limiting slide, through holes cooperating with the limiting long rods are provided on the unfolding turntable and the covering turntable, and L-shaped limiting plates are also symmetrically fixed on the base plate, and the L-shaped limiting plates are used to limit the position of the limiting slide.

[0010] Furthermore, the pressing units include a pressing rack, a driven rack, and a driven gear. The pressing racks are fixedly mounted on the pressing slide, the driven racks are fixedly mounted on the sides of the corresponding pressing slides, the driven gears are rotatably mounted on the corresponding unfolding rotating frame and the covering rotating frame, respectively, the driven racks and the corresponding driven gears constitute a gear rack pair, and the pressing racks and the corresponding driven gears constitute a gear rack pair when engaged, an L-shaped push plate is fixedly mounted on the pressing slide, and the auxiliary slide is used to push the L-shaped push plate to move.

[0011] Furthermore, a first support plate is symmetrically fixed on the bottom plate, and the upper surface of the first support plate and the upper surface of the placement frame plate one are on the same plane. A second support plate is symmetrically fixed on the unfolding rotating frame, and the upper surface of the second support plate and the upper surface of the placement frame plate two are on the same plane.

[0012] Furthermore, a transmission shaft is rotatably mounted on the unfolding base, a transmission group 2 is arranged between the transmission shaft and the unfolding pulley, and a transmission group 1 is arranged between the transmission shaft and the auxiliary screw rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) By setting a frame assembly, the present invention can sequentially realize the unfolding of the covering frame plate and the placing frame plate 2 under the action of the unfolding unit, so that the angle steel can be taken and placed from the top of the transport rack by hoisting. (2) By setting two adjustment side plates, the present invention can adjust the length of the placement plane according to the length of the angle steel to be stored, so that the transport rack can adapt to the storage requirements of angle steels of different sizes and specifications. (3) By setting a pressing assembly, the present invention can, under the action of the pressing unit, after the angle steel is placed on the transport rack, enable the pressing slide plate of each placement area to press and fix the angle steel in the placement area, thereby improving the stability of the angle steel on the transport rack. (4) By setting a limiting long rod, the present invention can realize the locking of the unfolding rotating rack and the covering rotating rack, thereby improving the stability of the transport rack and preventing the transport rack from loosening during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a structural schematic diagram of placing a frame plate in the present invention.

[0016] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0017] Figure 4 It is a structural schematic diagram of placing two frame plates of the present invention.

[0018] Figure 5 It is a schematic structural diagram of the covering frame plate of the present invention.

[0019] Figure 6 It is a schematic diagram of the structure of the cover rotating frame of the present invention.

[0020] Figure 7 This is a schematic diagram of the structure of the base of the present invention.

[0021] Figure 8 for Figure 7 A local enlarged schematic diagram of point B in the middle.

[0022] Fig. 9 It is a structural schematic diagram of the auxiliary screw rod of the present invention.

[0023] Fig.10 for Fig. 9 A partial enlarged schematic diagram of point C in the middle.

[0024] Fig.11 It is a schematic diagram of the structure of the pressing slide of the present invention.

[0025] Fig.12 for Fig.11 A partial enlarged schematic diagram of point D in the middle.

[0026] Fig.13 for Fig.11 A partial enlarged schematic diagram of point E in the middle.

[0027] Fig.14 It is a structural schematic diagram of a transmission group of the present invention.

[0028] Fig.15 It is a side view of the overall structure of the present invention.

[0029] Fig.16 It is a front view of the overall structure of the present invention.

[0030] Figure numerals: 101-bottom plate; 102-universal wheel; 103-placement frame plate 1; 104-placement frame plate 2; 105-covering frame plate; 106-adjustment side plate; 107-first support plate; 108-adjustment motor; 109-adjustment screw rod; 110-adjustment pulley; 111-unfolding base; 112-unfolding rotating frame; 113-second support plate; 114-pressing slide plate; 115-covering rotating frame; 116-limiting ratchet; 117-unfolding ratchet 1; 118-transmission shaft; 119-unfolding motor; 120-unfolding pulley; 121-unfolding screw rod; 122-unfolding ratchet Wheel 2; 123-limiting strip; 124-trapezoidal push block; 125-unfolding ratchet; 126-strip rotating plate; 127-limiting short plate; 128-limiting short column; 129-auxiliary screw; 130-L-shaped limiting plate; 131-pressing slide; 132-pressing rack; 133-limiting slide; 134-limiting long rod; 135-auxiliary slide; 136-driven rack; 137-driven gear; 138-transmission group 1; 139-support side plate; 140-unfolding slide; 141-limiting ratchet ring; 142-transmission group 2; 143-adjusting long axis; 144-L-shaped push plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Example: Reference Figure 1-Figure 16 , an angle steel transport rack that is easy to pick up and place, including a base plate 101, four universal wheels 102 are arranged in a rectangular array on the lower surface of the base plate 101, and the base plate 101 is moved under the action of the universal wheels 102. A frame assembly is arranged on the base plate 101, and the frame assembly includes two placement frame plates 103, two placement frame plates 104, and two covering frame plates 105. The two placement frame plates 103 are symmetrically slidably installed on the base plate 101, and the two placement frame plates 103 are slidably matched. The placement frame plates 103 are fixedly installed with adjustment screw rods 109, and the rotation directions of the two adjustment screw rods 109 are opposite. Two adjustment pulleys 110 are rotatably installed on the base plate 101. The positioning screw rod 109 and the corresponding positioning pulley 110 form a spiral pair, a positioning motor 108 is fixedly installed on the base plate 101, a positioning long shaft 143 is rotatably installed on the base plate 101, two pulleys are fixedly installed on the positioning long shaft 143, belts are respectively arranged between the two pulleys on the positioning long shaft 143 and the corresponding positioning pulley 110, the output shaft of the positioning motor 108 is fixedly connected to the positioning long shaft 143, a first support plate 107 is symmetrically fixedly arranged on the base plate 101, the upper surface of the first support plate 107 and the upper surface of the placement frame plate 103 are on the same plane, and the two placement frame plates 103 and the two first support plates 107 form a placement plane for the angle steel.

[0033] In the initial position, the two placement frame plates 103 are located at the position closest to each other, and the positioning motor 108 is started to drive the positioning long shaft 143 to rotate. Under the action of the belt between the pulley on the positioning long shaft 143 and the corresponding positioning pulley 110, the two positioning pulleys 110 rotate synchronously, so that the two positioning screw rods 109 move away from each other, and the two placement frame plates 103 move away from each other, thereby realizing the expansion of the placement plane of the angle steel formed by the two placement frame plates 103 and the two first support plates 107.

[0034] An unfolding base 111 is fixedly installed on the bottom plate 101, and an unfolding rotating frame 112 is rotatably installed on the unfolding base 111. A torsion spring is arranged between the unfolding base 111 and the unfolding rotating frame 112, one end of the torsion spring is fixedly connected to the unfolding base 111, and the other end of the torsion spring is fixedly connected to the unfolding rotating frame 112. Two placing frame plates 104 are symmetrically slidably installed on the unfolding rotating frame 112, and the two placing frame plates 104 are slidably matched with each other. A second supporting plate 113 is symmetrically fixedly arranged on the unfolding rotating frame 112, and the upper surface of the second supporting plate 113 and the upper surface of the placing frame plate 104 are on the same plane. Support side plates 139 are symmetrically fixedly arranged on the placing frame plate 103 and the placing frame plate 104. The supporting side plate 139 on 103 is used to limit the position of the placing frame plate 104, and the supporting side plate 139 on the placing frame plate 104 is used to limit the position of the covering frame plate 105. The covering frame plate 115 is rotatably installed on the unfolding turntable 112, and a torsion spring is arranged between the unfolding turntable 112 and the covering turntable 115, one end of the torsion spring is fixedly connected to the unfolding turntable 112, and the other end of the torsion spring is fixedly connected to the covering turntable 115. The two covering frame plates 105 are symmetrically slidably installed on the covering turntable 115, and the two covering frame plates 105 are slidably matched with each other. The placing frame plate 103 is fixedly installed with an adjusting side plate 106, and the placing frame plate 104 and the covering frame plate 105 are both provided with sliding grooves that match the adjusting side plates 106.

[0035] In the initial position, the torsion springs between the unfolding base 111 and the unfolding rotating frame 112 and the torsion springs between the unfolding rotating frame 112 and the covering rotating frame 115 are not compressed, the placing frame plate 104 is located directly above the placing frame plate 103, and the lower surface of the placing frame plate 104 contacts the upper end surface of the supporting side plate 139 on the placing frame plate 103, and the first placing area of ​​the angle steel is formed between the placing frame plate 103, the supporting side plate 139 on the placing frame plate 103, and the placing frame plate 104. The covering frame plate 105 is located directly above the placing frame plate 104, and the lower surface of the covering frame plate 105 contacts the upper end surface of the supporting side plate 139 on the placing frame plate 104, and the placing frame plate 104, the supporting side plate 139 on the placing frame plate 104, and the covering frame plate 105 The second placement area of ​​the angle steel, under the action of the supporting side plate 139, limits the position of the angle steel in the first placement area and the second placement area, and the slide grooves on the placement frame plate 104 and the covering frame plate 105 are engaged with the corresponding adjustment side plates 106. At this time, the projections of the placement frame plate 103, the placement frame plate 104 and the covering frame plate 105 relative to the upper surface of the base plate 101 completely overlap. At this time, the adjustment motor 108 is started to drive the two placement frame plates 103 to move away from each other. Under the action of the two adjustment side plates 106, the placement frame plate 104 and the covering frame plate 105 engaged with the adjustment side plates 106 move synchronously, that is, the two placement frame plates 104 move away from each other and the two covering frame plates 105 move away from each other.

[0036] An unfolding unit is arranged between the unfolding base 111, the unfolding turret 112, and the covering turret 115, and the unfolding unit is used to realize the movement of the unfolding turret 112 and the covering turret 115, and the unfolding unit includes an unfolding slide 140 slidably mounted on the unfolding base 111, an unfolding pulley 120 is rotatably mounted on the unfolding base 111, an unfolding screw rod 121 is fixedly mounted on the unfolding slide 140, and the unfolding screw rod 121 and the unfolding pulley 120 form a spiral pair, an unfolding motor 119 is fixedly mounted on the unfolding base 111, and a transmission shaft 118 is also rotatably mounted on the unfolding base 111, and the output shaft of the unfolding motor 119 and The transmission shaft 118 is fixedly connected, and a transmission group 2 142 is arranged between the transmission shaft 118 and the unfolding pulley 120. The transmission group 2 142 includes a belt and a pulley. The pulley in the transmission group 2 142 is fixedly mounted on the transmission shaft 118. The belt in the transmission group 2 142 is arranged between the unfolding pulley 120 and the pulley in the transmission group 2 142. The unfolding motor 119 is started to drive the transmission shaft 118 to rotate. Under the action of the transmission group 2 142, the unfolding pulley 120 rotates synchronously, and then under the action of the unfolding screw rod 121, the unfolding slide 140 moves up and down relative to the unfolding base 111.

[0037] The side of the unfolding slide 140 is fixedly installed with an unfolding ratchet 125, the unfolding rotating frame 112 is fixedly installed with an unfolding ratchet 122, and the covering rotating frame 115 is fixedly installed with an unfolding ratchet 117. When the unfolding ratchet 125 and the unfolding ratchet 122 are engaged, a ratchet mechanism is formed, and when the unfolding ratchet 125 and the unfolding ratchet 117 are engaged, a ratchet mechanism is formed. When the unfolding ratchet 125 and the unfolding ratchet 117 are engaged, a ratchet mechanism is formed. A limit strip 123 is slidably installed on the unfolding rotating frame 112, a spring is arranged between the limit strip 123 and the unfolding rotating frame 112, and a limit ratchet ring 141 is fixedly arranged at the end of the limit strip 123. A limit ratchet 116 is also fixedly installed on the covering rotating frame 115. The limit ratchet 116 is fixedly installed on the covering rotating frame 115. 6 and the limiting ratchet ring 141 are engaged to form a ratchet mechanism, a trapezoidal push block 124 is fixedly provided on the side of the limiting strip 123, a strip rotating plate 126 is rotatably installed on the lower end of the unfolding ratchet 125, a torsion spring is arranged between the unfolding ratchet 125 and the strip rotating plate 126, one end of the torsion spring is fixedly connected to the unfolding ratchet 125, and the other end of the torsion spring is fixedly connected to the strip rotating plate 126, a limiting short plate 127 is also fixedly provided at the lower end of the unfolding ratchet 125, the limiting short plate 127 is used to limit the rotation of the strip rotating plate 126, the strip rotating plate 126 is used to push the trapezoidal push block 124 to move, a limiting short column 128 is fixedly installed on the side of the unfolding rotating frame 112, and the limiting short column 128 is used to limit the rotation position of the covering rotating frame 115.

[0038] In the initial position, the unfolding ratchet 125 is located at the farthest position from the bottom plate 101. At this time, the unfolding ratchet 125 does not contact the unfolding ratchet 117, the spring between the limiting strip 123 and the unfolding rotating frame 112 is not compressed, the limiting strip 123 is located at the position closest to the unfolding ratchet 125, at this time the limiting ratchet ring 141 and the limiting ratchet 116 are engaged to form a ratchet mechanism, the strip rotating plate 126 is located at the farthest position from the trapezoidal push block 124, the torsion spring between the strip rotating plate 126 and the unfolding ratchet 125 is not compressed, and the strip rotating plate 126 is in a horizontal state, and the lower surface of the strip rotating plate 126 contacts the upper surface of the limiting short plate 127.

[0039] Start the unfolding motor 119 to drive the unfolding pulley 120 to rotate, so that the unfolding screw rod 121, the unfolding ratchet 125, and the unfolding slide 140 move downward synchronously, so that the unfolding ratchet 125 contacts the unfolding ratchet 117, and the unfolding ratchet 125 continues to move downward. Since the unfolding ratchet 125 and the unfolding ratchet 117 constitute a ratchet mechanism, the unfolding ratchet 117 is rotated. Since the limiting ratchet 116 and the limiting ratchet ring 141 constitute a ratchet mechanism, the limiting ratchet 116 rotates relative to the limiting ratchet ring 141 at this time, thereby causing the covering turret 115 to rotate synchronously, and the torsion spring between the covering turret 115 and the unfolding turret 112 is compressed, and the end of the covering turret 115 farthest from the axis of the unfolding ratchet 117 moves away from the upper surface of the bottom plate 101. The cover rotating frame 115 moves in the direction of the surface, and the cover frame plate 105 on the cover rotating frame 115 rotates synchronously, and finally the cover rotating frame 115 rotates to a vertical upward state. At this time, the unfolding ratchet 125 disengages from the unfolding ratchet 117, and the side of the cover rotating frame 115 contacts the limiting short column 128. Under the action of the limiting short column 128, the cover rotating frame 115 cannot continue to rotate, and under the action of the limiting ratchet 116 and the limiting ratchet ring 141, the cover rotating frame 115 cannot rotate in the opposite direction, that is, under the action of the limiting ratchet 116, the limiting short column 128, and the limiting ratchet ring 141, the position of the cover rotating frame 115 is locked. At this time, the two cover frame plates 105 are in a vertical upward state under the action of the cover rotating frame 115, that is, the covering of the second placement area of ​​the diagonal steel is released.

[0040] As the unfolding slide 140 continues to move downward, the unfolding ratchet 125 continues to move downward. At this time, the covering rotating frame 115 rotates relative to the unfolding rotating frame 112, and the lower surface of the limiting short plate 127 contacts the upper surface of the trapezoidal pushing block 124. Under the action of the trapezoidal pushing block 124, the torsion spring between the limiting short plate 127 and the unfolding ratchet 125 is compressed, that is, the end of the limiting short plate 127 moves upward. After the limiting short plate 127 moves to break away from the contact with the trapezoidal pushing block 124, under the action of the torsion spring between the unfolding ratchet 125 and the limiting short plate 127, the limiting short plate 127 returns to the initial position, and the unfolding ratchet 125 continues to move downward. The unfolding ratchet 125 engages with the unfolding ratchet wheel 122. Under the action of the unfolding ratchet 125, the unfolding ratchet wheel 122 is opened. 22 rotates, and the unfolding turret 112 rotates synchronously, and the torsion spring between the unfolding turret 112 and the unfolding base 111 is compressed, that is, the end of the unfolding turret 112 farthest from the axis of the unfolding ratchet wheel 122 moves in the direction away from the upper surface of the bottom plate 101, and finally the unfolding turret 112 moves to a vertically upward state. At this time, the two placement frame plates 104 on the unfolding turret 112 are also in a vertically upward state, and the placement frame plate 104 is disengaged from the adjustment side plate 106. Under the action of the unfolding turret 112, the covering turret 115 and the two covering frame plates 105 are located on the outside of the bottom plate 101, and the covering turret 115 and the two covering frame plates 105 are in a horizontal state, that is, the covering of the first placement area of ​​the diagonal steel is released at this time.

[0041] The unfolding motor 119 is started to drive the unfolding ratchet 125 to move upward. Under the action of the torsion spring between the unfolding rotating frame 112 and the unfolding base 111, the unfolding ratchet wheel 122 rotates in the opposite direction, that is, the unfolding rotating frame 112 rotates in the opposite direction, and the end of the unfolding rotating frame 112 farthest from the axis of the unfolding ratchet wheel 122 moves toward the direction close to the upper surface of the bottom plate 101, and finally the unfolding rotating frame 112 rotates to the initial position, that is, at this time, the unfolding rotating frame 112 is in a horizontal state, the lower surface of the placing frame plate 104 is in contact with the upper end surface of the supporting side plate 139 on the placing frame plate 103, and the placing frame plate 104 is in contact with the corresponding The adjusting side plate 106 is reengaged, the unfolding ratchet 125 continues to move upward, the end of the strip rotating plate 126 contacts the inclined surface on the trapezoidal push block 124, and the unfolding ratchet 125 continues to move upward. At this time, the lower surface of the strip rotating plate 126 contacts the upper surface of the limiting short plate 127, that is, the end of the strip rotating plate 126 cannot rotate downward, so that the trapezoidal push block 124 moves away from the limiting short plate 127, and the limiting strip plate 123 and the limiting ratchet ring 141 move synchronously. The spring between the limiting strip plate 123 and the unfolding rotating frame 112 is compressed, so that the limiting ratchet ring 141 and the limiting ratchet wheel 116 are disengaged.

[0042] At this time, the unfolding ratchet 125 does not contact the unfolding ratchet wheel 117, and the limiting ratchet ring 141 releases the lock on the position of the covering rotating frame 115. Under the action of the torsion spring between the unfolding rotating frame 112 and the covering rotating frame 115, the covering rotating frame 115 rotates in the opposite direction, and finally makes the covering rotating frame 115 in a horizontal state. At this time, the lower surface of the covering frame plate 105 contacts the upper end surface of the supporting side plate 139 on the placing frame plate 104. At this time, the unfolding rotating frame 112 and the covering rotating frame 115 return to their initial positions, and the unfolding ratchet 125 continues to move upward, finally making The strip rotating plate 126 disengages from the contact with the trapezoidal push block 124, and under the action of the spring between the limiting strip plate 123 and the unfolding rotating frame 112, the limiting strip plate 123, the trapezoidal push block 124, and the limiting ratchet ring 141 return to their positions, that is, the limiting ratchet ring 141 and the limiting ratchet 116 re-engage to form a ratchet mechanism, and the unfolding ratchet 125 continues to move upward. Since the unfolding ratchet 117 and the unfolding ratchet 125 form a ratchet mechanism, the unfolding ratchet 125 moves relative to the unfolding ratchet 117 at this time, and finally the unfolding ratchet 125 returns to its initial position.

[0043] An auxiliary slide plate 135 is slidably mounted on the base plate 101, and an auxiliary screw rod 129 is rotatably mounted on the base plate 101. The auxiliary screw rod 129 and the auxiliary slide plate 135 constitute a spiral pair. A transmission group 138 is arranged between the transmission shaft 118 and the auxiliary screw rod 129. The transmission group 138 includes a belt and two pulleys. The two pulleys in the transmission group 138 are respectively fixedly mounted on the lower ends of the transmission shaft 118 and the auxiliary screw rod 129. The belt in the transmission group 138 is arranged between the two pulleys in the transmission group 138. The unfolding motor 119 is started to drive the transmission shaft 118 to rotate. Under the action of the transmission group 138, the auxiliary screw rod 129 rotates synchronously. When the unfolding screw rod 121 makes the unfolding slide 140 move upward, under the action of the auxiliary screw rod 129, the auxiliary slide plate 135 moves upward synchronously.

[0044] A limiting slide 133 is slidably installed on the auxiliary slide 135, and a spring is arranged between the limiting slide 133 and the auxiliary slide 135. An L-shaped limiting plate 130 is also symmetrically fixedly arranged on the bottom plate 101, and the L-shaped limiting plate 130 is used to limit the position of the limiting slide 133. Limiting long rods 134 are fixedly arranged at both ends of the limiting slide 133, and through holes cooperating with the limiting long rods 134 are arranged on the unfolding rotating frame 112 and the covering rotating frame 115.

[0045] When the unfolding rotating frame 112 and the covering rotating frame 115 are both in a horizontal state, the limiting slide 133 is at the farthest position from the lower surface of the bottom plate 101, and the two auxiliary slides 135 on the limiting slide 133 are engaged with the corresponding through holes on the unfolding rotating frame 112 and the covering rotating frame 115. Under the action of the limiting long rod 134, the unfolding rotating frame 112 and the covering rotating frame 115 cannot rotate at this time, that is, the position of the unfolding rotating frame 112 and the covering rotating frame 115 is locked, and at this time the limiting slide 133 contacts the inner surface of the L-shaped limiting plate 130, and the auxiliary screw rod 129 continues to make the auxiliary slide 135 move upward. Under the action of the L-shaped limiting plate 130, the limiting slide 133 cannot continue to move upward, that is, the auxiliary slide 135 moves upward relative to the limiting slide 133, and the spring between the limiting slide 133 and the auxiliary slide 135 is compressed.

[0046] In the process of driving the unfolding ratchet 125 to move downward and engage with the unfolding ratchet 117, the limiting long rod 134 disengages from the covering turntable 115, that is, the lock on the position of the covering turntable 115 is released; in the process of driving the unfolding ratchet 125 to move downward and engage with the unfolding ratchet 122, the limiting long rod 134 disengages from the unfolding turntable 112, that is, the lock on the position of the unfolding turntable 112 is released.

[0047] A pressing assembly is also provided on the base plate 101, and the pressing assembly includes four pressing slides 114, which are slidably installed on both sides of the unfolding rotating frame 112 and the covering rotating frame 115 respectively. A pressing slide 131 is slidably installed on the base plate 101, and the pressing slide 131 is slidably connected to the L-shaped limiting plate 130. A spring is provided between the pressing slide 131 and the upper surface of the base plate 101, one end of the spring is fixedly connected to the lower surface of the pressing slide 131, and the other end of the spring is fixedly connected to the upper surface of the base plate 101, and an L-shaped push plate 144 is fixedly installed on the pressing slide 131, and an auxiliary slide 135 is used to push the L-shaped push plate 144 to move.

[0048] A pressing unit is provided between the pressing slide 131 and the pressing slide 114, and the pressing unit is used to realize the movement of the pressing slide 114. The pressing unit includes a pressing rack 132, a driven rack 136, and a driven gear 137. The pressing rack 132 is fixedly mounted on the pressing slide 131, and the driven rack 136 is fixedly mounted on the side of the corresponding pressing slide 114. The driven gear 137 is rotatably mounted on the corresponding unfolding rotating frame 112 and the covering rotating frame 115, respectively. The driven gear 137 on the unfolding rotating frame 112 and the unfolding rotating frame 115 are rotated to rotate. A torsion spring is arranged between 12, one end of the torsion spring is fixedly connected to the unfolding turret 112, and the other end of the torsion spring is fixedly connected to the corresponding driven gear 137, a torsion spring is arranged between the driven gear 137 on the covering turret 115 and the covering turret 115, one end of the torsion spring is fixedly connected to the covering turret 115, and the other end of the torsion spring is fixedly connected to the corresponding driven gear 137, the driven rack 136 and the corresponding driven gear 137 constitute a gear rack pair, and when the pressing rack 132 and the corresponding driven gear 137 are engaged, they constitute a gear rack pair.

[0049] In the initial position, the torsion spring between the driven gear 137 and the unfolding rotate frame 112 and the torsion spring between the driven gear 137 and the covering rotate frame 115 are not compressed. At this time, the pressing slide 114 on the covering rotate frame 115 and the pressing slide 114 on the unfolding rotate frame 112 are both located at the farthest position from the upper surface of the base plate 101. At this time, the pressing rack 132 is not in contact with the corresponding driven gear 137.

[0050] When the unfolding rotating frame 112 and the covering rotating frame 115 are in a horizontal position, the limiting long rod 134 is in an engaged state with the unfolding rotating frame 112 and the covering rotating frame 115, and the limiting slide plate 133 cannot continue to move upward under the action of the L-shaped limiting plate 130. At this time, the spring between the auxiliary slide plate 135 and the limiting slide plate 133 is not compressed, and the spring between the pressing slide 131 and the bottom plate 101 is not stretched. At this time, the upper surface of the auxiliary slide plate 135 is in contact with the inner surface of the L-shaped push plate 144, and the unfolding motor 119 is started to continue to drive the unfolding ratchet 125 and the auxiliary slide plate 135 to move upward. The pressing slide 131 moves upward synchronously, the spring between the limiting slide 133 and the auxiliary slide 135 is compressed, the spring between the pressing slide 131 and the bottom plate 101 is stretched, the four pressing racks 132 on the pressing slide 131 move upward synchronously, the pressing racks 132 engage with the corresponding driven gears 137, and the driven gears 137 are caused to rotate, the torsion springs between the driven gears 137 and the unfolding rotating frame 112 and the torsion springs between the driven gears 137 and the covering rotating frame 115 are compressed, so that the driven racks 136 move upward, and then the four pressing slides 114 move downward synchronously.

[0051] Working principle: according to the length of the angle steel to be placed, start the positioning motor 108 to adjust the distance between the two placement frame plates 103. Under the action of the positioning side plate 106, the distance between the two placement frame plates 104 and the two covering frame plates 105 is adjusted synchronously, so that the two ends of the angle steel can be placed on both sides of the two placement frame plates 103. Then start the unfolding motor 119. Under the action of the transmission shaft 118, the unfolding pulley 120, the unfolding screw rod 121, the auxiliary screw rod 129, the transmission group 1 138, and the transmission group 2 142, the unfolding ratchet 125, the limiting slide plate 133, the auxiliary slide plate 135, and the unfolding slide 140 are synchronously moved upward. At this time, the limiting long rod 134 is first disengaged from the covering rotating frame 115, that is, the unfolding is released. The position of the covering rotatable frame 115 is locked, and then the unfolding ratchet 125 is engaged with the unfolding ratchet 117. Under the action of the unfolding ratchet 125, the covering frame 105 and the covering rotatable frame 115 are rotated to a vertical upward state. At this time, the unfolding ratchet 125 is disengaged from the unfolding ratchet 117, and the unfolding ratchet 125 continues to move downward, and the limiting long rod 134 is disengaged from the unfolding rotatable frame 112, that is, the lock on the position of the unfolding rotatable frame 112 is released, and the unfolding ratchet 125 continues to move downward and engages with the unfolding ratchet 122. Under the action of the unfolding ratchet 122 and the unfolding ratchet 125, the unfolding rotatable frame 112 and the placement frame 104 are rotated to a vertical upward state, that is, the unfolding rotatable frame 112 and the covering rotatable frame 115 are unfolded.

[0052] At this time, the angle steel is hoisted and placed on the first placement area of ​​the angle steel formed between the placement frame plate 103, the supporting side plate 139 on the placement frame plate 103, and the placement frame plate 2 104. Under the action of the first support plate 107, the angle steel placed on the placement frame plate 103 is auxiliary supported. After the first placement area of ​​the angle steel formed between the placement frame plate 103, the supporting side plate 139 on the placement frame plate 103, and the placement frame plate 2 104 reaches the maximum placement amount, the unfolding motor 11 is started. 9 makes the unfolding ratchet 125 and the auxiliary slide plate 135 move upward synchronously, and the unfolding ratchet 125 disengages from the unfolding ratchet wheel 122. At this time, the unfolding rotating frame 112 and the second placing frame plate 104 return to the initial position. At this time, the lower surface of the second placing frame plate 104 contacts the upper end surface of the supporting side plate 139 on the placing frame plate 1 103, and the unfolding ratchet 125 continues to move upward, so that the limiting long rod 134 is engaged with the unfolding rotating frame 112, that is, the position of the unfolding rotating frame 112 is locked. Then, the angle steel is hoisted and placed on the second placement area of ​​the angle steel formed between the second frame plate 104, the supporting side plate 139 on the second frame plate 104, and the covering frame plate 105. Under the action of the second support plate 113, the angle steel placed on the second frame plate 104 is auxiliary supported. When the second placement area of ​​the angle steel formed between the second frame plate 104, the supporting side plate 139 on the second frame plate 104, and the covering frame plate 105 reaches the maximum placement amount, the spine 125 is unfolded and moved upward. The position of the covering rotating frame 115 is locked by the limiting ratchet ring 141 under the action of the trapezoidal push block 124, the strip rotating plate 126 and the limiting short plate 127. The covering rotating frame 115 and the covering frame plate 105 return to their initial positions. The lower surface of the covering frame plate 105 contacts the upper end surface of the supporting side plate 139 on the second frame plate 104. The unfolded ratchet strip 125 continues to move upward, and the limiting long rod 134 engages with the covering rotating frame 115, thereby locking the position of the covering rotating frame 115.

[0053] Continue to start the unfolding motor 119 to drive the unfolding ratchet 125 and the auxiliary slide 135 to move upward. At this time, the limiting slide 133 cannot continue to move upward under the action of the L-shaped limiting plate 130, and at this time, the auxiliary slide 135 contacts the inner surface of the L-shaped push plate 144. Under the action of the auxiliary slide 135, the pressing slide 131 and the L-shaped push plate 144 move upward synchronously, so that the four pressing racks 132 move upward synchronously. Under the action of the driven rack 136 and the driven gear 137, the four pressing slides 114 all move downward, and finally the pressing slides 114 press the angle steels in the corresponding areas respectively, that is, under the action of the pressing slide 114, the stability of the angle steels on the transport rack is improved.

[0054] When it is necessary to take out the angle steel placed on the transport rack, start the unfolding motor 119, and under the action of the auxiliary slide 135, first make the pressing slide 114 return to the initial position, and then make the covering rotatable frame 115 and the covering frame plate 105 rotate to a vertical upward state, that is, remove the cover of the second placement area, so as to facilitate the lifting and transportation of the angle steel placed on the placement frame plate 104. After all the angle steels in the second placement area are taken out, continue to move the unfolding ratchet 125 upward, and finally make the unfolding rotatable frame 112 and the placement frame plate 104 rotate to a vertical upward state, that is, remove the obstruction of the first placement area, so as to facilitate the lifting and transportation of the angle steel placed on the placement frame plate 1 103.

[0055] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by technicians in the relevant technical field based on the above-mentioned conception without creative work all fall within the protection scope of the present invention.

Claims

1. An angle steel transport rack that is easy to pick up and place, comprising a bottom plate (101), characterized in that: The bottom plate (101) is provided with a frame assembly, the frame assembly comprising two placement frame plates (103), two placement frame plates (104), and two cover frame plates (105), the two placement frame plates (103) are symmetrically slidably mounted on the bottom plate (101), an unfolding base (111) is fixedly mounted on the bottom plate (101), an unfolding rotating frame (112) is rotatably mounted on the unfolding base (111), and the two placement frame plates (104) are symmetrically slidably mounted on the unfolding rotating frame (112). 2), a covering rotating frame (115) is rotatably mounted on the unfolding rotating frame (112), two covering frame plates (105) are symmetrically slidably mounted on the covering rotating frame (115), a positioning side plate (106) is fixedly mounted on the placing frame plate 1 (103), a sliding groove matching the positioning side plate (106) is provided on the placing frame plate 2 (104) and the covering frame plate (105), and an unfolding unit is provided between the unfolding base (111), the unfolding rotating frame (112), and the covering rotating frame (115); The bottom plate (101) is also provided with a pressing assembly, which includes four pressing slide plates (114). The four pressing slide plates (114) are slidably mounted on both sides of the unfolding rotating frame (112) and the covering rotating frame (115), respectively. A pressing slide (131) is slidably mounted on the bottom plate (101), and a pressing unit is provided between the pressing slide (131) and the pressing slide plate (114). The pressing unit is used to realize the movement of the pressing slide plate (114); The unfolding unit comprises an unfolding slide (140) slidably mounted on an unfolding base (111); an unfolding ratchet (125) is fixedly mounted on the side of the unfolding slide (140); a second unfolding ratchet (122) is fixedly mounted on the unfolding rotating frame (112); a first unfolding ratchet (117) is fixedly mounted on the covering rotating frame (115); the unfolding ratchet (125) forms a ratchet mechanism when engaging with the first unfolding ratchet (117) and the second unfolding ratchet (122); an unfolding pulley (120) is rotatably mounted on the unfolding base (111); an unfolding screw (121) is fixedly mounted on the unfolding slide (140); the unfolding screw (121) and the unfolding pulley (120) form a spiral pair; A limit strip (123) is slidably mounted on the unfolding rotating frame (112), a limit ratchet ring (141) is fixedly mounted on the end of the limit strip (123), a limit ratchet wheel (116) is also fixedly mounted on the covering rotating frame (115), and a ratchet mechanism is formed when the limit ratchet wheel (116) and the limit ratchet ring (141) are engaged, a trapezoidal push block (124) is fixedly mounted on the side of the limit strip (123), a strip rotating plate (126) is rotatably mounted on the lower end of the unfolding ratchet (125), a limit short plate (127) is also fixedly mounted on the lower end of the unfolding ratchet (125), the limit short plate (127) is used to limit the rotation of the strip rotating plate (126), and the strip rotating plate (126) is used to push the trapezoidal push block (124) to move; An auxiliary slide plate (135) is slidably mounted on the bottom plate (101), an auxiliary screw rod (129) is rotatably mounted on the bottom plate (101), the auxiliary screw rod (129) and the auxiliary slide plate (135) form a spiral pair, a limiting slide plate (133) is slidably mounted on the auxiliary slide plate (135), both ends of the limiting slide plate (133) are fixedly provided with limiting long rods (134), the unfolding rotating frame (112) and the covering rotating frame (115) are both provided with through holes that cooperate with the limiting long rods (134), and an L-shaped limiting plate (130) is also symmetrically fixedly mounted on the bottom plate (101), and the L-shaped limiting plate (130) is used to limit the position of the limiting slide plate (133); The pressing units all include a pressing rack (132), a driven rack (136), and a driven gear (137). The pressing rack (132) is fixedly mounted on a pressing slide (131). The driven rack (136) is fixedly mounted on the side of a corresponding pressing slide (114). The driven gear (137) is rotatably mounted on the corresponding unfolding rotating frame (112) and the covering rotating frame (115). The driven rack (136) and the corresponding driven gear (137) form a gear rack pair. When the pressing rack (132) and the corresponding driven gear (137) are engaged, they form a gear rack pair. An L-shaped push plate (144) is fixedly mounted on the pressing slide (131). The auxiliary slide (135) is used to push the L-shaped push plate (144) to move.

2. The angle steel transport rack that is easy to pick up and place according to claim 1 is characterized in that: Four universal wheels (102) are arranged in a rectangular array on the lower surface of the base plate (101); support side plates (139) are symmetrically fixedly arranged on the placement frame plate 1 (103) and the placement frame plate 2 (104); the support side plates (139) on the placement frame plate 1 (103) are used to limit the position of the placement frame plate 2 (104); and the support side plates (139) on the placement frame plate 2 (104) are used to limit the position of the covering frame plate (105).

3. The angle steel transport rack that is easy to pick up and place according to claim 2 is characterized in that: The two placing frame plates (103) are slidably matched with each other, the two placing frame plates (104) are slidably matched with each other, and the two covering frame plates (105) are slidably matched with each other. A positioning screw (109) is fixedly mounted on the placing frame plate (103). Two positioning pulleys (110) are rotatably mounted on the bottom plate (101). The positioning screw (109) and the corresponding positioning pulleys (110) form a spiral pair.

4. The angle steel transport rack that is easy to pick up and place according to claim 3 is characterized in that: A first support plate (107) is symmetrically fixedly arranged on the bottom plate (101), and the upper surface of the first support plate (107) and the upper surface of the first placement frame plate (103) are on the same plane. A second support plate (113) is symmetrically fixedly arranged on the unfolding rotating frame (112), and the upper surface of the second support plate (113) and the upper surface of the second placement frame plate (104) are on the same plane.

5. The angle steel transport rack that is easy to take and place according to claim 4 is characterized in that: A transmission shaft (118) is rotatably mounted on the unfolding base (111), a second transmission group (142) is arranged between the transmission shaft (118) and the unfolding pulley (120), and a first transmission group (138) is arranged between the transmission shaft (118) and the auxiliary screw rod (129).

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