Construction site lifts

Abstract

The utility model belongs to the technical field of elevators, and relates to an elevator for construction sites, including a frame, a lifting assembly is arranged on the frame, the lifting assembly drives a moving plate located in the frame to move vertically up and down, a driving assembly is arranged on the moving plate, the driving assembly drives a connecting plate located at the top of the moving plate to slide back and forth horizontally, a bearing plate is rotatably arranged on the top of the connecting plate, a plurality of rollers are rotatably arranged on the bearing plate at intervals, two transmission members are symmetrically arranged on the top of the moving plate, and two telescopic assemblies are symmetrically arranged on the connecting plate; when the connecting plate moves, the telescopic assemblies cooperate with the corresponding transmission members to drive the bearing plate to rotate. The cylinder pushes the connecting plate to slide to the outside of the frame, and under the action of the transmission member, the bearing plate is pulled downward through the hinge block, so that the bearing plate is rotated downward, so that the bearing plate can be driven to rotate while moving the bearing plate outward, which is convenient for unloading.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators and relates to an elevator used in construction sites. Background Art

[0002] The construction site is the place where the construction is carried out. It is mainly the process of turning various lines on the design drawings into physical objects at the designated location. During construction, elevators are needed to transport construction materials such as cement and bricks.

[0003] A material lift for construction sites disclosed in Chinese patent CN220265114U includes a frame, a connecting plate, a first driving mechanism, a sliding plate, a second driving mechanism, a load-bearing frame, a roller shaft and a third driving mechanism. The first driving mechanism is used to drive the connecting plate to move in a height direction, the second driving mechanism is used to drive the sliding plate to move, and the third driving mechanism is used to drive the load-bearing frame to rotate.

[0004] When the lifter removes the building materials on the roller shaft, the first telescopic rod needs to drive the sliding plate to slide forward, and at the same time, the second telescopic rod needs to drive the load-bearing frame to rotate. Under the action of gravity, the materials placed on the roller shaft slide downward to complete the unloading. In addition, the first telescopic rod and the second telescopic rod need to be operated separately, and multiple driving parts increase the production cost.

[0005] In order to solve the above problems, the utility model provides a lift for construction sites. Utility Model Content

[0006] In order to solve the problems existing in the background technology, the utility model proposes a lift for a construction site.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: comprising a frame, on which a lifting assembly is arranged, the lifting assembly drives a moving plate located in the frame to move vertically up and down, the moving plate is provided with a driving assembly, and the driving assembly drives a connecting plate located on the top of the moving plate to slide back and forth horizontally;

[0008] A bearing plate is rotatably arranged on the top of the connecting plate, and a plurality of rollers are rotatably arranged at intervals on the bearing plate;

[0009] Two transmission members are symmetrically arranged on the top of the movable plate, and two telescopic assemblies are symmetrically arranged on the connecting plate; when the connecting plate moves, the telescopic assemblies cooperate with the corresponding transmission members to drive the bearing plate to rotate.

[0010] Furthermore, the lifting assembly includes a first screw rod, two slide grooves are symmetrically opened on the inner wall of the frame, the first screw rod is rotatably connected to the inside of one of the slide grooves, and the first screw rod is arranged vertically;

[0011] A motor is fixedly connected to the top of the frame, and the motor drives the first screw rod to rotate;

[0012] Both ends of the movable plate are fixedly connected with slide plates, and the two slide plates are slidably connected in corresponding slide grooves respectively, and one of the slide plates is threadedly sleeved on the first screw rod.

[0013] Furthermore, a guide column is fixedly connected to the inside of another slide groove, the guide column is arranged vertically, and another slide plate is slidably sleeved on the guide column, and the side surface of the movable plate is slidably matched with the inner wall of the frame.

[0014] Furthermore, the driving assembly includes a cylinder, the top of the movable plate is fixedly connected to a support plate, the cylinder is fixedly connected to one side of the support plate, and one end of a piston rod at an output end of the cylinder is fixedly connected to one side of the connecting plate.

[0015] Furthermore, the middle part of the connecting plate is U-shaped, and both ends of the connecting plate close to the cylinder are fixedly connected with sliders, and the upper surface of the movable plate is provided with two symmetrical grooves, and the sliders are slidably connected in the corresponding grooves.

[0016] Furthermore, the transmission parts all include racks, and the top of the movable plate is fixedly connected to two symmetrical fixed plates, the fixed plates are L-shaped, and the racks are respectively fixedly connected to one end of the corresponding fixed plates away from the movable plate.

[0017] Furthermore, the telescopic components each include a second screw rod, the bottom ends of the two second screw rods are rotatably connected to the connecting plate, the top ends of the second screw rods are threadedly sleeved with a sleeve, the sleeves are slidably passed through the top of the connecting plate, the top ends of the sleeves extending above the connecting plate are hinged with hinge blocks, and the top ends of the hinge blocks are slidably connected to the inside of the bearing plate;

[0018] The bottom of each second screw rod is fixedly sleeved with a gear, which meshes with the corresponding rack;

[0019] The connection plate is provided with a limit assembly, which limits the sleeve to slide up and down.

[0020] Furthermore, the limiting assembly includes two limiting cylinders, which are symmetrically fixedly connected to the connecting plate. An L-shaped limiting plate is fixedly connected to the outer surface of each sleeve, and the bottom end of the limiting plate is slidably connected to the corresponding limiting cylinder.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The construction site lift is provided with a load-bearing plate, which is rotatably arranged on the top of the connecting plate. When the construction materials on the roller shaft are removed, the cylinder pushes the connecting plate to slide outside the frame, driving the gear to move, and the rack drives the gear to rotate, so that the second screw rod rotates, and the sleeve moves downward, and then the load-bearing plate is pulled downward through the hinge block, so that the load-bearing plate can be driven to rotate while moving the load-bearing plate outward, which is convenient for unloading. Moreover, it is driven by only one cylinder, which reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a cross-sectional view of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the load-bearing plate in the utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the rack in the utility model;

[0027] Figure 5 It is a structural schematic diagram of the sleeve in the utility model;

[0028] Figure 6 It is a structural schematic diagram of the hinge block in the utility model.

[0029] In the figure: 1. frame; 2. motor; 3. first screw rod; 4. guide column; 5. moving plate; 6. cylinder; 7. connecting plate; 8. slider; 9. rack; 10. second screw rod; 11. sleeve; 12. hinge block; 13. bearing plate; 14. roller; 15. gear; 16. limit cylinder; 17. mounting plate; 18. limit plate; 19. fixing plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figure 1-Figure 6 As shown, the technical solution adopted by the utility model is as follows: a lift for a construction site comprises a frame 1, the frame 1 is arranged vertically, and the top and bottom surfaces of the frame 1 are both U-shaped.

[0032] The frame 1 is provided with a lifting assembly, which drives the moving plate 5 located in the frame 1 to move vertically up and down.

[0033] The lifting assembly includes a first screw rod 3. Two slide grooves are symmetrically provided on the inner wall of the frame 1, and the first screw rod 3 is rotatably connected to the inside of one of the slide grooves, and the first screw rod 3 is arranged vertically.

[0034] A motor 2 is fixedly connected to the top of the frame 1 , and the motor 2 drives the first screw rod 3 to rotate.

[0035] Both ends of the movable plate 5 are fixedly connected with slide plates, and the two slide plates are slidably connected in corresponding slide grooves respectively, and one of the slide plates is threadedly sleeved on the first screw rod 3.

[0036] Another slide groove is fixedly connected with a guide column 4, which is arranged vertically. Another slide plate is slidably sleeved on the guide column 4, and the side of the moving plate 5 is slidably matched with the inner wall of the frame 1. The guide column 4 is used to limit the up and down movement of the moving plate 5 to increase stability.

[0037] The moving plate 5 is provided with a driving assembly, which drives the connecting plate 7 located on the top of the moving plate 5 to slide back and forth horizontally.

[0038] The driving assembly includes a cylinder 6. A support plate is fixedly connected to the top of the moving plate 5, the cylinder 6 is fixedly connected to one side of the support plate, and one end of a piston rod at an output end of the cylinder 6 is fixedly connected to one side of a connecting plate 7.

[0039] The middle part of the connecting plate 7 is in a U shape, and both ends of the connecting plate 7 close to the cylinder 6 are fixedly connected with sliders 8. The upper surface of the moving plate 5 is provided with two symmetrical grooves, and the sliders 8 are slidably connected in the corresponding grooves.

[0040] A bearing plate 13 is rotatably provided on the top of the connecting plate 7, and a plurality of rollers 14 are rotatably provided on the bearing plate 13 at intervals. Two mounting plates 17 are fixedly connected to the top of the connecting plate 7, and the bearing plate 13 is located between the two mounting plates 17. Both sides of one end of the bearing plate 13 are fixedly connected with a rotating shaft, and the rotating shaft is rotatably connected to the corresponding mounting plate 17.

[0041] Two transmission members are symmetrically arranged on the top of the moving plate 5, and two telescopic assemblies are symmetrically arranged on the connecting plate 7. When the connecting plate 7 moves, the telescopic assemblies cooperate with the corresponding transmission members to drive the bearing plate 13 to rotate.

[0042] The transmission parts all include a rack 9. The top of the moving plate 5 is fixedly connected with two symmetrical fixed plates 19, the fixed plates 19 are L-shaped, and the racks 9 are respectively fixedly connected to the ends of the corresponding fixed plates 19 away from the moving plate 5.

[0043] The telescopic components all include a second screw rod 10, and the bottom ends of the two second screw rods 10 are rotatably connected to the connecting plate 7. The top ends of the second screw rods 10 are all threadedly sleeved with sleeves 11, and the sleeves 11 all slide through the top of the connecting plate 7, and the top ends of the sleeves 11 extending above the connecting plate 7 are all hinged with hinge blocks 12, and the top ends of the hinge blocks 12 are all slidably connected to the inside of the bearing plate 13.

[0044] The top of the sleeve 11 is fixedly connected to two hinged plates, and a hinge shaft is rotatably connected between the two corresponding hinged plates. The bottom ends of the hinge blocks 12 are fixedly sleeved on the corresponding hinge shafts.

[0045] Two T-shaped slots are formed on the bottom surface of the carrier plate 13 . The shape of the top end of the hinge block 12 matches the slots, and the top end of the hinge block 12 is slidably connected to the corresponding slots.

[0046] A gear 15 is fixedly sleeved on the bottom of the second screw rod 10 , and the gear 15 is meshed with the corresponding rack 9 .

[0047] A limit assembly is provided on the connecting plate 7, and the limit assembly limits the sleeve 11 to slide up and down, so that when the second screw rod 10 rotates on the sleeve 11, the sleeve 11 will slide up and down under the action of the limit assembly.

[0048] The limiting assembly includes two limiting cylinders 16, which are symmetrically fixedly connected to the connecting plate 7. An L-shaped limiting plate 18 is fixedly connected to the outer surface of each sleeve 11, and the bottom end of the limiting plate 18 is slidably connected to the corresponding limiting cylinder 16.

[0049] Working principle:

[0050] When in use, the motor 2 is started, and the output shaft of the motor 2 rotates forward, driving the first screw rod 3 to rotate. The first screw rod 3 rotates on one of the slides, and the slide slides downward in the slide groove, driving the moving plate 5 to slide downward inside the frame 1. At the same time, the other slide slides downward on the guide column 4.

[0051] The moving plate 5 drives the connecting plate 7 and the carrying plate 13 to move downwards, and after the carrying plate 13 is moved to a suitable height, the motor 2 is turned off. The building material can be placed on the top of the roller 14.

[0052] The motor 2 is started, and the output shaft of the motor 2 is reversed to drive the first screw rod 3 to rotate. The movable plate 5 is moved upward, driving the bearing plate 13 and the building materials to move upward. After moving to a suitable height, the motor 2 is turned off.

[0053] Start the cylinder 6, so that the piston rod at the output end of the cylinder 6 is extended, pushing the connecting plate 7 to slide on the top of the moving plate 5. Make the connecting plate 7 slide toward the outside of the frame 1 away from the end of the cylinder 6, and the slider 8 will also slide in the corresponding groove.

[0054] The connecting plate 7 drives the gear 15 to move together, and the gear 15 is driven to rotate under the action of the rack 9. The gear 15 drives the second screw rod 10 to rotate, and the top end of the second screw rod 10 rotates in the sleeve 11. The sleeve 11 moves downward, and the limit plate 18 also moves downward, and the bottom end of the limit plate 18 slides downward in the limit tube 16.

[0055] The sleeve 11 will drive the hinge block 12 to move downward, and the hinge block 12 will rotate, and the top end of the hinge block 12 will slide in the slot, thereby pulling the end of the bearing plate 13 away from the cylinder 6 to rotate downward.

[0056] The bearing plate 13 will make the roller shaft 14 tilt, and under the action of gravity, the building materials placed on the roller shaft 14 will slide downward to complete the unloading.

[0057] After unloading is completed, the piston rod at the output end of the cylinder 6 is shortened, pulling the connecting plate 7 to slide inside the frame 1. At the same time, the gear 15 drives the second screw 10 to rotate, so that the sleeve 11 moves upward, and the hinge block 12 pushes the end of the bearing plate 13 away from the cylinder 6 to rotate upward until the bearing plate 13 returns to a horizontal state for continued use.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A construction site lift, characterized in that: The invention comprises a frame (1), wherein a lifting assembly is arranged on the frame (1), and the lifting assembly drives a movable plate (5) located in the frame (1) to move vertically up and down, and a driving assembly is arranged on the movable plate (5), and the driving assembly drives a connecting plate (7) located on the top of the movable plate (5) to slide back and forth horizontally; A bearing plate (13) is rotatably provided on the top of the connecting plate (7), and a plurality of rollers (14) are rotatably provided on the bearing plate (13) at intervals; Two transmission members are symmetrically arranged on the top of the movable plate (5), and two telescopic assemblies are symmetrically arranged on the connecting plate (7); when the connecting plate (7) moves, the telescopic assemblies cooperate with the corresponding transmission members to drive the bearing plate (13) to rotate.

2. The construction site lift according to claim 1, characterized in that: The lifting assembly comprises a first screw rod (3), two slide grooves are symmetrically provided on the inner wall of the frame (1), the first screw rod (3) is rotatably connected to the inside of one of the slide grooves, and the first screw rod (3) is arranged vertically; A motor (2) is fixedly connected to the top of the frame (1), and the motor (2) drives the first screw rod (3) to rotate; Both ends of the movable plate (5) are fixedly connected with slide plates, and the two slide plates are respectively slidably connected in corresponding slide grooves, and one of the slide plates is threadedly sleeved on the first screw rod (3).

3. The construction site lift according to claim 2, characterized in that: A guide column (4) is fixedly connected to the interior of another slide groove, the guide column (4) is arranged vertically, another slide plate is slidably sleeved on the guide column (4), and the side surface of the movable plate (5) is slidably matched with the inner wall of the frame (1).

4. The construction site lift according to claim 1, characterized in that: The driving assembly comprises a cylinder (6), the top of the moving plate (5) is fixedly connected to a support plate, the cylinder (6) is fixedly connected to one side of the support plate, and one end of a piston rod at the output end of the cylinder (6) is fixedly connected to one side of a connecting plate (7).

5. The construction site lift according to claim 4, characterized in that: The middle part of the connecting plate (7) is U-shaped, and both ends of the connecting plate (7) close to the cylinder (6) are fixedly connected with sliders (8). The upper surface of the movable plate (5) is provided with two symmetrical grooves, and the sliders (8) are slidably connected in the corresponding grooves.

6. The construction site lift according to claim 1, characterized in that: The transmission parts all include racks (9), the top of the movable plate (5) is fixedly connected to two symmetrical fixed plates (19), the fixed plates (19) are L-shaped, and the racks (9) are respectively fixedly connected to one end of the corresponding fixed plates (19) away from the movable plate (5).

7. The construction site lift according to claim 6, characterized in that: The telescopic components each comprise a second screw rod (10), the bottom ends of the two second screw rods (10) are rotatably connected to the connecting plate (7), the top ends of the second screw rods (10) are threadedly sleeved with a sleeve (11), the sleeve (11) slides through the top of the connecting plate (7), the top ends of the sleeves (11) extending above the connecting plate (7) are hingedly connected to a hinge block (12), and the top ends of the hinge blocks (12) are slidably connected to the inside of the bearing plate (13); The bottom of each of the second screw rods (10) is fixedly sleeved with a gear (15), and the gear (15) is meshed with a corresponding rack (9); The connection plate (7) is provided with a limit assembly, which limits the sleeve (11) to slide only up and down.

8. The construction site lift according to claim 7, characterized in that: The limiting assembly comprises two limiting cylinders (16), which are symmetrically fixedly connected to the connecting plate (7), and an L-shaped limiting plate (18) is fixedly connected to the outer surface of each sleeve (11), and the bottom end of the limiting plate (18) is slidably connected to the corresponding limiting cylinder (16).

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