Material conveying device for construction

Abstract

The present invention discloses a material conveying device for construction, which relates to the field of construction material conveying, including a lifting conveyor, a tower body, a rotating conveying arm, a limiting plate and a storage box. The rotating conveying arm is rotatably installed on the top of the tower body, and the tower body is perpendicular to the rotating conveying arm. A horizontal slide is provided on the rotating conveying arm, and the horizontal slide has the freedom to move along the length direction of the rotating conveying arm. An electric hoist is installed on the horizontal slide, and a limiting column is connected to the traction rope of the electric hoist. The limiting plate is movably sleeved on the tower body, and the limiting plate moves with the electric hoist. A limiting hole is penetrated through the limiting plate, and the limiting column is inserted into the limiting hole. The limiting column is inserted into the top of the storage box, so that the transportation of the storage box is more stable, and there will be no shaking or swinging, thereby improving the transportation safety and protecting the material from damage.

Description

Technical Field

[0001] The present invention relates to the technical field of building material transportation, in particular to a material transportation device for building construction. Background Art

[0002] In construction, tower cranes are basically used to lift and transport materials. However, traditional tower cranes are large in size and suitable for use in high-rise buildings, but not for low-rise buildings. On the one hand, the operating space of tower cranes is insufficient, and on the other hand, the cost of use is high. Therefore, conveyors are basically used to transport building materials in low-rise building construction. Conveyors can be divided into the following types according to their operation mode: integrated conveyors, belt conveyors, screw conveyors, lifting conveyors, roller conveyors, plate chain conveyors, mesh belt conveyors and chain conveyors. A lifting conveyor is generally used for upward transportation of materials. The lifting conveyor mainly lifts and transports materials through an electric hoist. Specifically, building materials are stacked in a box, and the hook of the electric hoist is hung on the lifting ring of the box. The box is lifted and lowered by winding the traction rope. However, the coordination position of the hook and the lifting ring has freedom of movement, and the traction rope itself has freedom of movement, which causes the box to swing easily during the lifting process. On the one hand, there is a risk of unhooking, and on the other hand, the materials in the box may collide and be damaged. Therefore, it is very necessary to design a device that can stably lift and transport materials. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a material conveying device for construction to solve the deficiencies of the prior art.

[0004] The objective of the present invention is achieved through the following technical solutions: A material conveying device for construction, comprising a lifting conveyor, the lifting conveyor comprising a tower body, a rotating conveying arm, a limiting plate and a storage box, the rotating conveying arm is rotatably mounted on the top of the tower body, the tower body is perpendicular to the rotating conveying arm, a horizontal slide is provided on the rotating conveying arm, the horizontal slide has the freedom to move along the length direction of the rotating conveying arm, an electric hoist is installed on the horizontal slide, the traction rope of the electric hoist is connected to a limiting column, the limiting plate is movably mounted on the tower body, the limiting plate moves with the electric hoist, a limiting hole is penetrated through the limiting plate, the limiting column is passed through the limiting hole, the limiting column is inserted into the limiting hole, and the limiting column is inserted into the top of the storage box.

[0005] Furthermore, the limiting plate includes a lifting plate, a rotating plate and a movable plate, a rectangular groove is opened through the middle of the lifting plate, the tower body is shaped as a hollow cuboid, and the tower body is slidably adapted to the rectangular groove, a hollow shaft is rotatably provided on the lifting plate, the rotating plate is fixedly sleeved on the hollow shaft, a rubber ring is provided between the rotating plate and the hollow shaft, the rubber ring is in a compressed state, the axis of the hollow shaft is coaxial with the rotation axis of the rotating conveying arm, the movable plate is slid through the end of the rotating plate away from the lifting plate, and the limiting hole is provided on the movable plate.

[0006] Furthermore, two opposite outer walls of the tower body are provided with lifting grooves, and a lifting mechanism is provided in the lifting groove. The lifting mechanism operates synchronously with the electric hoist. The lifting mechanism includes a rotatably installed driving shaft and a driven shaft, and the driving shaft and the driven shaft are spaced apart along the height direction of the tower body. The driving shaft and the driven shaft are respectively provided with a driving sprocket and a driven sprocket, and the driving sprocket is connected to the driven sprocket through a chain transmission. The lifting plate is connected to the chain, and a motor is installed on the tower body. The output shaft of the motor is connected to the driving shaft, and the rotating plate is sequentially provided with a small-diameter groove and a large-diameter groove in the direction close to the lifting plate. A baffle is slidably adapted in the large-diameter groove, and the movable plate is slidably adapted to the small-diameter groove, and the baffle cannot pass through the small-diameter groove.

[0007] Furthermore, the side wall of the limiting column is symmetrically provided with a plurality of snap-in components, the plurality of the snap-in components are evenly distributed along the height direction of the limiting column, and the plurality of the snap-in components are staggered along the horizontal direction, the snap-in components include two first 7-shaped hooks, the two first 7-shaped hooks are symmetrically fixed along the horizontal direction, a mounting circular hole is provided on the top of the storage box body, each of the first 7-shaped hooks is correspondingly provided with a second 7-shaped hook, the second 7-shaped hook is slidably passed through the side wall of the mounting circular hole, the opening of the first 7-shaped hook faces upward, the opening of the second 7-shaped hook faces downward, and the first 7-shaped hook is hook-engaged with the second 7-shaped hook.

[0008] Furthermore, the limit column is provided with a slot at the position where the first 7-shaped hook is set, and the first 7-shaped hook is fixedly installed in the slot, and the storage box is provided with a horizontal slot and a vertical slot at the position where the second 7-shaped hook is set, and the vertical slot is located between the limit column and the horizontal slot, and one end of the horizontal slot is connected to the vertical slot, and the other end is connected to the installation cavity, and the horizontal portion of the second 7-shaped hook is slidably adapted to the horizontal slot, and the vertical slot is used to accommodate the vertical portion of the second 7-shaped hook, and the horizontal portion of the second 7-shaped hook extends into the installation cavity and is connected to a limit baffle, and the limit baffle cannot pass through the horizontal slot, and one end of the limit baffle is horizontally connected to a spring, and the other end of the spring is connected to the storage box, and a wedge surface is provided on the top of the second 7-shaped hook, and the wedge surface is located on the moving path of the limit column. When the spring is in normal state, the second 7-shaped hook extends into the slot to cooperate with the first 7-shaped hook.

[0009] Furthermore, a push plate is slidably provided in the mounting circular hole, and the push plate is located below the second 7-shaped hook. A strip groove is provided on the side wall of the mounting circular hole, and each mounting cavity is correspondingly provided with a strip groove. The strip groove is communicated with the corresponding mounting cavity. The limit baffle is connected to a pull wire, and the pull wire passes through the strip groove and is connected to the side wall of the push plate. A plurality of guide wheels are rotatably provided behind the limit baffle, and the pull wire is wound into a C shape through the plurality of guide wheels.

[0010] Furthermore, a spring groove is provided at the bottom of the mounting hole, a reset spring is connected to the spring groove, and the reset spring is connected to the push plate. When the push plate contacts the bottom of the mounting hole, the vertical portion of the second 7-shaped hook is located in the vertical groove.

[0011] Furthermore, a guide block is fixed to the side wall of the limiting column, and two guide grooves are symmetrically provided on the inner wall of the mounting circular hole, and the guide grooves extend to the top of the storage box. An arc groove is provided on the inner wall of the mounting circular hole, and the two ends of the arc groove are respectively connected to the two guide grooves. When the guide block slides and fits in one of the guide grooves, the second 7-shaped hook is located on the moving path of the first 7-shaped hook, and when the guide block slides and fits in the other guide groove, the first 7-shaped hook and the second 7-shaped hook are in an interlaced state.

[0012] Furthermore, a rotating main shaft is rotatably installed on the top of the tower body, the rotating conveying arm is fixedly connected to the rotating main shaft, a stepper motor is installed on the tower body, the output shaft of the stepper motor is connected to a small gear, a large gear is mounted on the rotating main shaft, and the large gear engages with the small gear.

[0013] Furthermore, the rotating conveying arm includes a rotating arm and an I-beam, the rotating arm is connected to the rotating main shaft, two I-beams are horizontally fixed to one end of the rotating arm, the two I-beams are arranged at intervals in the horizontal direction, the horizontal slide is located between the two I-beams, and both sides of the horizontal slide are rotatably connected to walking wheels, and the walking wheels are located in the C-shaped groove of the I-beam.

[0014] The beneficial effects of the present invention are:

[0015] The storage box is connected by a limit column, which eliminates the freedom of movement of the hook and the ring. At the same time, the limit column is inserted into the limit hole of the limit plate, thereby limiting the horizontal movement freedom of the limit column. The limit column limits the vertical movement freedom under the action of the gravity of the storage box, making the transportation of the storage box more stable without shaking or swinging, improving the transportation safety and protecting the material from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a material conveying device for construction of the present invention. Figure 1 ;

[0017] Figure 2 This is a structural schematic diagram of a limiting plate in a material conveying device for construction according to the present invention;

[0018] Figure 3 for Figure 1 Enlarged view of point D in the middle;

[0019] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0020] Figure 5 This is a schematic diagram of the coordination between the limiting column and the storage box in a material conveying device for construction of the present invention;

[0021] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0022] Figure 7 for Figure 5 Enlarged view of point B in the middle;

[0023] Figure 8 This is a schematic structural diagram of a limiting column in a material conveying device for construction according to the present invention;

[0024] Figure 9 This is a structural schematic diagram of a storage box in a material conveying device for construction of the present invention;

[0025] Figure 10This is a schematic diagram of the structure of a material conveying device for construction of the present invention. Figure 2 ;

[0026] Figure 11 This is a schematic diagram of the structure of a material conveying device for construction of the present invention. Figure 3 ;

[0027] In the figure, 1-tower body, 2-rotating conveying arm, 3-limiting plate, 4-horizontal slide, 5-electric hoist, 6-storage box, 7-limiting column, 8-limiting hole, 9-lifting plate, 10-rotating plate, 11-moving plate, 12-rectangular groove, 13-hollow shaft, 14-lifting groove, 15-driving shaft, 16-driven shaft, 17-driving sprocket, 18-driven sprocket, 19-chain, 20-motor, 21-small diameter groove, 22-large diameter groove, 23-baffle, 24-first 7-shaped hook, 25-first Two 7-shaped hooks, 26-notch, 27-horizontal slot, 28-vertical slot, 29-mounting cavity, 30-limit baffle, 31-spring, 32-wedge surface, 33-mounting circular hole, 34-push plate, 35-strip slot, 36-pull wire, 37-guide wheel, 38-spring slot, 39-reset spring, 40-guide block, 41-guide slot, 42-arc slot, 43-rotating spindle, 44-stepping motor, 45-small gear, 46-large gear, 47-rotating arm, 48-I-beam, 49-travel wheel. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0029] Example 1

[0030] like Figures 1 to 11As shown, a material conveying device for construction includes a lifting conveyor, which includes a tower body 1, a rotating conveying arm 2, a limiting plate 3 and a storage box 6. The rotating conveying arm 2 is rotatably installed on the top of the tower body 1, and the tower body 1 is perpendicular to the rotating conveying arm 2. A horizontal slide 4 is provided on the rotating conveying arm 2. The horizontal slide 4 has the freedom to move along the length direction of the rotating conveying arm 2. An electric hoist 5 is installed on the horizontal slide 4. The traction rope of the electric hoist 5 is connected to a limiting column 7. The limiting plate 3 is movably mounted on the tower body 1. The limiting plate 3 moves with the electric hoist 5. A limiting hole 8 is penetrated through the limiting plate 3. The limiting column 7 is inserted into the limiting hole 8. 7 is plugged into the top of the storage box 6, and a box door is hinged on one side of the storage box 6. The box door and the storage box 6 are connected by a latch. Open the box door, stack the building materials (ceramics, bricks, etc.) in the storage box 6, and then lock the box door. The electric hoist 5 lowers the traction rope to move the limit column 7 downward. During the downward movement of the limit column 7, the limit plate 3 moves downward synchronously with the limit column 7, so that the limit column 7 is always inserted into the limit hole 8. Then, the limit column 7 is connected to the storage box 6, abandoning the traditional connection method of the hook and the ring, so that there is no freedom of movement between the storage box 6 and the limit column 7. The electric hoist 5 reels the traction rope to lift the storage box 6. During the lifting process In the process, the limiting plate 3 moves synchronously with the limiting column 7, so that the limiting column 7 is always restricted in the limiting hole 8, thereby limiting the horizontal movement freedom of the limiting column 7, and the limiting column 7 limits its vertical movement freedom under the action of the gravity of the storage box 6, making the transportation of the storage box 6 more stable, without shaking or swinging, improving the transportation safety, and protecting the material from damage. After lifting to the specified height, the storage box 6 is placed in the specified position in conjunction with the rotation movement of the rotating conveying arm 2 and the horizontal movement of the horizontal slide 4, and then in conjunction with the lowering action of the electric hoist 5. After eliminating the swing of the storage box 6, the storage box 6 can be lifted and placed in the specified position, and the workers can also move the storage box 6 to the specified position. When the workers are guiding the storage box 6 to be lowered, the storage box 6 will not swing and collide with the workers, thereby improving the safety of construction. After the storage box 6 is lowered to the designated position, the workers will remove the storage box 6 and install the previous empty storage box 6 on the limit column 7. The conveying device will convey the empty storage box 6 to the ground for loading materials, and this process is repeated to realize the lifting and transportation of construction materials. Through the above arrangement, the limiting plate 3 does not bear the weight of the storage box 6, and the storage box 6 is directly lifted by the electric hoist 5. The limiting plate 3 only limits the limiting column 7, so that the limiting plate 3 does not need too high installation strength, reducing the installation requirements of the limiting plate 3.

[0031] Furthermore, if Figure 1 、 Figure 10 and Figure 11As shown, a rotating spindle 43 is rotatably installed on the top of the tower body 1, and the rotating conveying arm 2 is fixedly connected to the rotating spindle 43. A stepper motor 44 is installed on the tower body 1, and the output shaft of the stepper motor 44 is connected to a small gear 45. A large gear 46 is set on the rotating spindle 43, and the large gear 46 engages with the small gear 45. The stepper motor 44 drives the rotating spindle 43 to rotate through the engagement of the small gear 45 and the large gear 46. The rotating spindle 43 drives the rotating conveying arm 2 to rotate, and the movement of the horizontal slide 4 adjusts the lowering position of the storage box 6; the rotating conveying arm 2 includes a rotating arm 47 and an I-beam 4 8. The rotating arm 47 is connected to the rotating main shaft 43. Two I-beams 48 are horizontally fixed to one end of the rotating arm 47. The two I-beams 48 are arranged at intervals in the horizontal direction. The horizontal slide 4 is located between the two I-beams 48. Both sides of the horizontal slide 4 are rotatably connected with walking wheels 49. The walking wheels 49 are located in the C-shaped notch of the I-beam 48. The walking wheels 49 are driven by the shaft and the drive motor. This belongs to the existing technology and will not be repeated here. The walking wheels 49 roll in the C-shaped notch of the I-beam 48, which has a limiting effect on the horizontal slide 4 to prevent the horizontal slide 4 from falling from the rotating conveying arm 2.

[0032] Example 2

[0033] Based on the first embodiment, Figures 1 to 4As shown, the limiting plate 3 includes a lifting plate 9, a rotating plate 10 and a moving plate 11. A rectangular groove 12 is opened through the middle of the lifting plate 9. The tower body 1 is in the shape of a hollow cuboid. The tower body 1 slides and fits into the rectangular groove 12. A hollow shaft 13 is rotatably provided on the lifting plate 9. The rotating plate 10 is fixedly sleeved on the hollow shaft 13. A rubber ring is provided between the rotating plate 10 and the hollow shaft 13. The rubber ring is in a compressed state. The axis of the hollow shaft 13 is coaxial with the rotation axis of the rotating conveying arm 2. The rotating plate 10 is away from the lifting plate 9. The end thereof is slidably penetrated by the moving plate 11. The limiting hole 8 is opened on the moving plate 11. The two opposite outer walls of the tower body 1 are opened. There is a lifting groove 14, a lifting mechanism is provided in the lifting groove 14, the lifting mechanism and the electric hoist 5 operate synchronously, the lifting mechanism includes a rotatably installed driving shaft 15 and a driven shaft 16, the driving shaft 15 and the driven shaft 16 are spaced apart along the height direction of the tower body 1, and the driving shaft 15 and the driven shaft 16 are respectively provided with a driving sprocket 17 and a driven sprocket 18, the driving sprocket 17 is connected to the driven sprocket 18 through a chain 19, the lifting plate 9 is connected to the chain 19, a motor 20 is installed on the tower body 1, and the output shaft of the motor 20 is connected to the driving shaft 15, and the rotating plate 10 is sequentially provided with a small diameter groove 21 and a large diameter groove 22 in the direction close to the lifting plate 9, and the sliding groove 22 is provided in the large diameter groove 22. The movable plate 11 is adapted to be slidably fitted in the small-diameter groove 21. The baffle 23 cannot pass through the small-diameter groove 21 to prevent the movable plate 11 from detaching from the rotating plate 10. The motor 20 drives the active shaft 15 to rotate. The active shaft 15 drives the driven shaft 16 to rotate through the chain 19, so that the chain 19 rotates in a cycle, and drives the lifting plate 9 to move up and down through the chain 19. The lifting plate 9 causes the entire limit plate 3 to move up and down. The motor 20 runs synchronously with the electric hoist 5, and the moving speed of the lifting plate 9 is equal to the moving speed of the limit column 7, thereby ensuring that the limit column 7 is always inserted in the limit hole 8, and the rotating plate 10 can rotate on the lifting plate 9 to be synchronized with the rotating plate 10. The rotation of the conveying arm 2, through the setting of the hollow shaft 13, can make the rotation axis of the limit plate 3 coaxial with the rotation axis of the rotating conveying arm 2 without interfering with the movement of the lifting plate 9, so that the limit column 7 is always inserted into the limit hole 8, and at the same time does not affect the adjustment of the lowering position of the storage box 6. When the rotating conveying arm 2 rotates, the limit column 7 rotates, and the limit column 7 pulls the limit plate 3 to rotate accordingly. The setting of the rubber ring makes a large friction force between the hollow shaft 13 and the rotating plate 10, and the rotational freedom of the rotating plate 10 is locked by this friction force. When the rotating conveying arm 2 does not rotate, the limit plate 3 does not rotate accordingly, so that the lifting of the storage box 6 is more stable.By sliding the movable plate 11 on the rotating plate 10, the movable plate 11 moves synchronously with the horizontal slide 4. Similarly, an elastic layer is mounted on the movable plate 11, and the elastic layer interference fits the small-diameter groove 21, so that there is a large friction force between the movable plate 11 and the rotating plate 10. When the horizontal slide 4 stops, this friction force can lock the position of the movable plate 11 and prevent the storage box 6 from swinging. In summary, the lifting plate also has three degrees of freedom, which correspond to the three degrees of freedom of the limit column 7. Through synchronous operation or driven operation, the limit plate 3 moves synchronously with the limit column 7, so that the limit column 7 is always inserted into the limit hole 8, thereby limiting the storage box 6 and preventing it from swinging during the lifting process.

[0034] Based on the second embodiment, when the operating environment of the material conveying device is a windy environment, or when the swing requirement is high, the rotating plate 10 and the movable plate both adopt a synchronous operation mode to follow the movement of the limit column 7. The first motor is installed on the lifting plate 9, and the output shaft of the first motor is connected to the first gear. The second gear is mounted on the hollow shaft 13, and the second gear engages the first gear. The first motor is synchronized with the motor 20, so that the rotating conveying arm 2 and the limit plate 3 rotate synchronously. When the rotating conveying arm 2 stops rotating, the rotation of the limit plate 3 is limited by the self-locking of the first motor. Similarly, a rack is fixed on the top of the movable plate 11, and a second motor is installed on the rotating plate 10. The output shaft of the second motor is connected to the third gear. The top surface of the rotating plate 10 opens a drive window along the moving direction of the movable plate 11. The third gear passes through the drive window and engages the rack. The second motor is synchronized with the movement of the horizontal slide 4. When the horizontal slide 4 stops moving, the movement of the movable plate 11 is limited by the self-locking of the second motor, thereby strengthening the limiting strength of the limit column 7 and being able to adapt to harsh environments or high-demand situations.

[0035] Example 3

[0036] In order to improve the material conveying speed, the number of storage boxes 6 is not less than three. One storage box 6 is unloaded by workers at a designated position, and the other is located on the ground and loaded by workers. The material conveying device conveys the third empty storage box 6 to the ground, and then conveys the fully loaded storage box 6 to the designated position. The storage box 6 that has completed unloading is conveyed to the ground by the material conveying device for loading again. In this way, the loading, unloading and material conveying actions overlap, which greatly improves the conveying efficiency. Under this conveying mode, the limit column 7 and the storage box 6 need to be frequently connected and disassembled. Therefore, the traditional method of using hooks and rings is mainly to achieve fast installation and disassembly. For this reason, in order not to affect the fast installation and disassembly of the storage box 6, on the basis of embodiment 2, as shown in FIG. Figures 5 to 9As shown, the side wall of the limiting column 7 is symmetrically provided with a plurality of snap-fit components, and the plurality of snap-fit components are evenly distributed along the height direction of the limiting column 7, and the plurality of snap-fit components are staggered in the horizontal direction. The snap-fit components include two first 7-shaped hooks 24, and the two first 7-shaped hooks 24 are symmetrically fixed in the horizontal direction. A mounting circular hole 33 is provided on the top of the storage box 6, and each first 7-shaped hook 24 is correspondingly provided with a second 7-shaped hook 25, and the second 7-shaped hook 25 is slidably passed through the side wall of the mounting circular hole 33, and the opening of the first 7-shaped hook 24 faces upward, and the opening of the second 7-shaped hook 25 faces downward, and the first 7-shaped hook 24 and the second 7-shaped hook 25 are hook-shaped and buckled, and the limiting column 7 is inserted into the mounting circular hole 33 at the top of the storage box 6. The outer wall of the limiting column 7 contacts the inner wall of the mounting circular hole 33, which can greatly reduce the limiting column 7 in installation. The radial movement amount in the mounting hole 33, during the process of inserting the limiting post 7 into the mounting hole 33, the second 7-shaped hook 25 moves into the storage box body 6, so that the second 7-shaped hook 25 disengages from the mounting hole 33, so that the first 7-shaped hook 24 can smoothly pass through the second 7-shaped hook 25. When the limiting post 7 is inserted into place, the hook-shaped portion of the second 7-shaped hook 25 moves into the mounting hole 33 and is located above the first 7-shaped hook 24. At this time, the limiting post 7 is lifted up, and the limiting post 7 drives the first 7-shaped hook 24 to engage the second 7-shaped hook 25, thereby connecting the limiting post 7 to the storage box body 6. It only needs to be inserted into the specified position and then lifted up to complete the quick connection between the limiting post 7 and the storage box body 6. The operation is simple and reliable. At the same time, it can also limit the freedom of movement of the limiting post 7 to avoid the situation of lifting and swinging. Since the materials used in construction are heavy, in order to make the connection strength between the limit column 7 and the storage box 6 meet the lifting of large-mass materials, the clamping components are divided into two groups. The two groups of clamping components are symmetrically arranged on the limit column 7 to make the force uniform. Each group of clamping components is provided with multiple, so that the connection between the limit column 7 and the storage box 6 has multiple symmetrical force positions, which greatly improves the connection strength between the limit column 7 and the storage box 6. Secondly, in order to ensure the stability of the connection between the limit column 7 and the storage box 6, each clamping component includes two A 7-shaped hook 24 provides a stable connection, higher strength, and uniform force. Since the first 7-shaped hook 24 requires a second 7-shaped hook 25, to avoid mutual interference between the clamping components, the first 7-shaped hooks 24 in each clamping component are staggered in the horizontal direction, so that each longitudinal position of the limiting column 7 has only one set of first 7-shaped hooks 24 and second 7-shaped hooks 25 that engage with each other, which can avoid mutual interference and ensure that the first 7-shaped hooks 24 can stably engage with the corresponding second 7-shaped hooks 25. Preferably, two clamping components are provided in each set to ensure connection strength while simplifying the structure of the limiting column 7.

[0037] Furthermore, if Figures 5 to 9As shown, the limiting column 7 is provided with a slot 26 at the position where the first 7-shaped hook 24 is provided. The first 7-shaped hook 24 is fixedly installed in the slot 26. The storage box 6 is provided with a horizontal slot 27 and a vertical slot 28 at the position where the second 7-shaped hook 25 is provided. The vertical slot 28 is located between the limiting column 7 and the horizontal slot 27. One end of the horizontal slot 27 is connected to the vertical slot 28, and the other end is connected to the installation cavity 29. The horizontal portion of the second 7-shaped hook 25 is slidably adapted to the horizontal slot 27, and the vertical slot 28 is used to accommodate the vertical portion of the second 7-shaped hook 25, and the horizontal portion of the second 7-shaped hook 24 extends into the mounting cavity 29 to connect the limit baffle 30, which cannot pass through the horizontal slot 27. One end of the limit baffle 30 is horizontally connected to a spring 31, and the other end of the spring 31 is connected to the storage box 6. The top of the second 7-shaped hook 25 is provided with a wedge-shaped surface 32, which is located on the moving path of the limit column 7. When the spring 31 is in a normal state, the second 7-shaped hook 25 is opened. The hook 25 extends into the slot 26 to cooperate with the first 7-shaped hook 24. The slot 26 is set so that the first 7-shaped hook 24 can be received and installed in the slot 26, so that the outer wall of the limiting column 7 can contact the inner wall of the mounting hole 33 to reduce the radial movement. In the process of inserting the limiting column 7, the limiting column 7 sequentially squeezes the wedge surfaces 32 of the multiple second 7-shaped hooks 25. Under the guidance of the wedge surfaces 32, the second 7-shaped hook 25 squeezes the spring 31 to move into the horizontal groove 27, so that the first 7-shaped hook 24 can be received and installed in the slot 26, so that the outer wall of the limiting column 7 can contact the inner wall of the mounting hole 33 to reduce the radial movement. The vertical portion of the second 7-shaped hook 25 is located in the vertical groove 28, so that the limiting column 7 can be smoothly moved to the specified position through the second 7-shaped hook 25. After the limiting column 7 is inserted into place, the notch 26 corresponds to the corresponding second 7-shaped hook 25. The second 7-shaped hook 25 is inserted into the notch 26 under the reaction force of the spring 31. Finally, the limiting column 7 is lifted up, and the first 7-shaped hook 24 and the second 7-shaped hook 25 are engaged, completing the quick connection between the limiting column 7 and the storage box 6.

[0038] Example 4

[0039] The third embodiment realizes the quick connection between the limiting column 7 and the storage box 6, but when disassembling, the limiting column 7 cannot be directly pulled out. Therefore, in order to realize the quick disassembly of the limiting column 7 and the storage box 6, based on the third embodiment, Figures 5 to 9As shown, a push plate 34 is slidably provided in the mounting hole 33, and the push plate 34 is located below the second 7-shaped hook 25. A strip groove 35 is provided on the side wall of the mounting hole 33, and each mounting cavity 29 is correspondingly provided with a strip groove 35. The strip groove 35 is communicated with the corresponding mounting cavity 29, and the limiting baffle 30 is connected with a pull wire 36. The pull wire 36 passes through the strip groove 35 and is connected to the side wall of the push plate 34. A plurality of guide wheels 37 are provided for rotation behind the limiting baffle 30. The pull wire 36 is wound into a C shape through the plurality of guide wheels 37. A spring groove 38 is provided at the bottom of the mounting hole 33, and a reset spring 39 is connected in the spring groove 38. The reset spring 39 is connected to the push plate 34. When the push plate 34 contacts the bottom of the mounting hole 33, the second 7-shaped hook 25 The vertical portion of the hook 25 is located in the vertical groove 28, and a guide block 40 is fixed to the side wall of the limiting column 7. Two guide grooves 41 are symmetrically opened on the inner wall of the mounting hole 33. The guide groove 41 extends to the top of the storage box 6. The inner wall of the mounting hole 33 is provided with an arc groove 42. The two ends of the arc groove 42 are respectively connected to the two guide grooves 41. When the guide block 40 is slidably adapted in one of the guide grooves 41, the second 7-shaped hook 25 is located on the moving path of the first 7-shaped hook 24. When the guide block 40 is slidably adapted in the other guide groove 41, the first 7-shaped hook 24 and the second 7-shaped hook 25 are in a staggered state. The two guide grooves 41 are distinguished by markings. One guide groove 41 is used for connecting the limiting column 7 with the storage box 6, and the other guide groove 4 1 is used for disassembly of the limiting post 7 and the storage box 6. When connected, the guide block 40 slides into the corresponding guide groove 41 for connection. Through the cooperation of the guide groove 41 and the guide block 40, the limiting post 7 can be accurately inserted into the installation circular hole 33, so that the second 7-shaped hook 25 is located on the moving path of the first 7-shaped hook 24. When the limiting post 7 contacts the pushing plate 34, it is affected by the reset spring 39 and continues to insert the limiting post 7. There will be obvious resistance. At this time, it shows that the limiting post 7 has been inserted into place, and the limiting post 7 can be released to start the material conveying device to lift the storage box 6. During the lifting process, the limiting post 7 moves up a certain distance, so that the first 7-shaped hook 24 and the second 7-shaped hook 25 are buckled, completing the connection between the limiting post 7 and the storage box 6. When the limit column 7 is to be removed, the limit column 7 is continued to be moved downward, and the limit column 7 will press the push plate 34 to move, and at the same time, the first 7-shaped hook 24 is separated from the second 7-shaped hook 25, and the push plate 34 compresses the reset spring 39 and moves downward. In the process of the push plate 34 moving downward, the pull wire 36 is pulled, and the direction of the force is changed through multiple guide wheels 37. In the process of the push plate 34 moving downward, the second 7-shaped hook 25 is driven to move into the installation cavity 29 through the pull wire 36. At this time, the second 7-shaped hook 25 squeezes the spring 31 to move the vertical part into the vertical groove 28. At this time, the guide block 40 moves into the arc groove 42, and the push plate 34 contacts the bottom of the installation hole 33, indicating that the limit column 7 has moved to the disassembly position, and then the limit column 7 is rotated.When the limiting column 7 cannot be rotated, the guide block 40 corresponds to the other guide groove 41. At this time, the limiting column 7 is lifted up to make the guide block 40 fit into the other guide groove 41, which is used to guide the removal of the limiting column 7. Since the limiting column 7 rotates 180 degrees, the two sets of clamping components are arranged 180 degrees symmetrically. After the limiting column 7 rotates 180 degrees, the area of the limiting column 7 without the clamping component is correspondingly provided with the second 7-shaped hook 25. The complete side wall of the limiting column 7 blocks the second 7-shaped hook 25 from moving into the installation circular hole 33. At this time, the limiting column 7 can be directly pulled out upwards. Therefore, the removal of the limiting column 7 and the storage box 6 only requires moving downward and then rotating and lifting. The disassembly operation is also simple and reliable.

Claims

1. A material conveying device for construction, comprising a lifting conveyor, characterized in that: The hoisting conveyor comprises a tower body (1), a rotating conveying arm (2), a limiting plate (3) and a storage box (6), wherein the rotating conveying arm (2) is rotatably mounted on the top of the tower body (1), and the tower body (1) is perpendicular to the rotating conveying arm (2). A horizontal slide (4) is provided on the rotating conveying arm (2), and the horizontal slide (4) has the freedom to move along the length direction of the rotating conveying arm (2). An electric hoist (5) is installed on the horizontal slide (4), and a limiting column (7) is connected to the traction rope of the electric hoist (5). The limiting plate (3) is movably mounted on the tower body (1), and the limiting plate (3) moves following the electric hoist (5). A limiting hole (8) is provided through the limiting plate (3), and the limiting column (7) is inserted into the limiting hole (8). The limiting column (7) is plugged into the top of the storage box (6); The side wall of the limiting column (7) is symmetrically provided with a plurality of snap-fit components, the plurality of snap-fit components are evenly distributed along the height direction of the limiting column (7), and the plurality of snap-fit components are staggered in the horizontal direction, the snap-fit components include two first 7-shaped hooks (24), the two first 7-shaped hooks (24) are symmetrically fixed in the horizontal direction, the top of the storage box (6) is provided with a mounting hole (33), each of the first 7-shaped hooks (24) is correspondingly provided with a second 7-shaped hook (25), the second 7-shaped hook (25) is slidably penetrated on the side wall of the mounting hole (33), the opening of the first 7-shaped hook (24) faces upward, and the opening of the second 7-shaped hook (25) faces downward, and the first 7-shaped hook (24) and the second 7-shaped hook (25) are hook-shaped and buckled.

2. A material conveying device for construction according to claim 1, characterized in that: The limiting plate (3) includes a lifting plate (9), a rotating plate (10) and a moving plate (11); a rectangular groove (12) is provided through the middle of the lifting plate (9); the tower body (1) is in the shape of a hollow cuboid; the tower body (1) is slidably adapted to the rectangular groove (12); a hollow shaft (13) is rotatably provided on the lifting plate (9); the rotating plate (10) is fixedly sleeved on the hollow shaft (13); a rubber ring is provided between the rotating plate (10) and the hollow shaft (13); the rubber ring is in a compressed state; the axis of the hollow shaft (13) is coaxial with the rotation axis of the rotating conveying arm (2); the moving plate (11) is slidably penetrated at one end of the rotating plate (10) away from the lifting plate (9); and the limiting hole (8) is provided on the moving plate (11).

3. A material conveying device for construction according to claim 2, characterized in that: The two opposite outer walls of the tower body (1) are provided with a lifting groove (14), and a lifting mechanism is provided in the lifting groove (14). The lifting mechanism and the electric hoist (5) are synchronously operated. The lifting mechanism includes a rotatably mounted driving shaft (15) and a driven shaft (16). The driving shaft (15) and the driven shaft (16) are spaced apart along the height direction of the tower body (1). The driving shaft (15) and the driven shaft (16) are respectively provided with a driving sprocket (17) and a driven sprocket (18). The driving sprocket (17) is connected to the driven shaft (19) by a chain (19). The driven sprocket (18) is connected to the lifting plate (9), and the chain (19) is connected to the tower body (1). A motor (20) is installed on the tower body (1), and the output shaft of the motor (20) is connected to the driving shaft (15). The rotating plate (10) is provided with a small-diameter groove (21) and a large-diameter groove (22) in sequence along the direction close to the lifting plate (9). A baffle (23) is slidably adapted in the large-diameter groove (22). The movable plate (11) is slidably adapted in the small-diameter groove (21), and the baffle (23) cannot pass through the small-diameter groove (21).

4. A material conveying device for construction according to claim 1, characterized in that: The limiting column (7) is provided with a slot (26) at a position where the first 7-shaped hook (24) is provided. The first 7-shaped hook (24) is fixedly installed in the slot (26). The storage box (6) is provided with a horizontal slot (27) and a vertical slot (28) at a position where the second 7-shaped hook (25) is provided. The vertical slot (28) is located between the limiting column (7) and the horizontal slot (27). One end of the horizontal slot (27) is connected to the vertical slot (28), and the other end is connected to the installation cavity (29). The horizontal portion of the second 7-shaped hook (25) is slidably adapted to the horizontal slot (27). The vertical slot (28) is used to accommodate the second 7-shaped hook. The vertical portion of the hook (25) and the horizontal portion of the second 7-shaped hook (24) extend into the mounting cavity (29) and are connected to a limit baffle (30), wherein the limit baffle (30) cannot pass through the horizontal slot (27), one end of the limit baffle (30) is horizontally connected to a spring (31), and the other end of the spring (31) is connected to the storage box (6), and a wedge-shaped surface (32) is provided on the top of the second 7-shaped hook (25), and the wedge-shaped surface (32) is located on the moving path of the limit column (7), and when the spring (31) is in a normal state, the second 7-shaped hook (25) extends into the slot (26) to cooperate with the first 7-shaped hook (24).

5. A material conveying device for construction according to claim 4, characterized in that: A push plate (34) is slidably provided in the mounting circular hole (33), and the push plate (34) is located below the second 7-shaped hook (25). A strip groove (35) is provided on the side wall of the mounting circular hole (33), and each mounting cavity (29) is correspondingly provided with a strip groove (35). The strip groove (35) is communicated with the corresponding mounting cavity (29). The limit baffle (30) is connected to a pull wire (36), and the pull wire (36) passes through the strip groove (35) and is connected to the side wall of the push plate (34). A plurality of guide wheels (37) are rotatably provided behind the limit baffle (30), and the pull wire (36) is wound into a C shape through the plurality of guide wheels (37).

6. A material conveying device for construction according to claim 5, characterized in that: A spring groove (38) is provided at the bottom of the mounting circular hole (33), a return spring (39) is connected to the spring groove (38), and the return spring (39) is connected to the push plate (34). When the push plate (34) contacts the bottom of the mounting circular hole (33), the vertical portion of the second 7-shaped hook (25) is located in the vertical groove (28).

7. A material conveying device for construction according to claim 6, characterized in that: A guide block (40) is fixed to the side wall of the limiting column (7), and two guide grooves (41) are symmetrically opened on the inner wall of the mounting circular hole (33), and the guide grooves (41) extend to the top of the storage box (6). An arc groove (42) is opened on the inner wall of the mounting circular hole (33), and the two ends of the arc groove (42) are respectively connected to the two guide grooves (41). When the guide block (40) is slidably fitted in one of the guide grooves (41), the second 7-shaped hook (25) is located on the moving path of the first 7-shaped hook (24), and when the guide block (40) is slidably fitted in the other guide groove (41), the first 7-shaped hook (24) and the second 7-shaped hook (25) are in a staggered state.

8. The material conveying device for construction according to claim 1, characterized in that: A rotating main shaft (43) is rotatably mounted on the top of the tower body (1), the rotating conveying arm (2) is fixedly connected to the rotating main shaft (43), a stepping motor (44) is mounted on the tower body (1), an output shaft of the stepping motor (44) is connected to a small gear (45), a large gear (46) is sleeved on the rotating main shaft (43), and the large gear (46) engages with the small gear (45).

9. A material conveying device for construction according to claim 8, characterized in that: The rotating conveying arm (2) comprises a rotating arm (47) and an I-beam (48), wherein the rotating arm (47) is connected to the rotating main shaft (43), and two I-beams (48) are horizontally fixed to one end of the rotating arm (47), and the two I-beams (48) are arranged at intervals in the horizontal direction, and the horizontal slide (4) is located between the two I-beams (48). Both sides of the horizontal slide (4) are rotatably connected to walking wheels (49), and the walking wheels (49) are located in the C-shaped notches of the I-beams (48).

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