Lift equipment for constructional engineering

Abstract

The utility model relates to the technical field of elevators, in particular to elevator equipment for constructional engineering, which comprises a base, a movable plate, a transmission component, a driving component, a limiting component and a feeding component, the base is symmetrically connected with two groups of scissor-type supports, and one ends, far away from the base, of the scissor-type supports are connected with a top plate. And the two movable plates slide relative to the base and are respectively connected with the movable legs of the scissor-fork type brackets on the corresponding sides. The transmission assembly is in transmission connection with the two side movable plates. The driving assembly is connected with the base and synchronously drives the movable plates on the two sides to slide so as to adjust the height of the top plate. The limiting assembly is connected with the base and the transmission assembly, and the limiting assembly limits the transmission assembly in the state that the driving assembly suddenly loses force, so that the top plate is prevented from rapidly descending. The feeding assembly is connected with the top plate. Through the cooperation of the clamping block and the tooth groove, when the hydraulic cylinder A loses force, the clamping block is automatically thrown out and completes the movable limiting of the shear fork type support, and the safety of workers on the top plate is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator device for construction engineering. Background Art

[0002] Construction engineering usually involves working at heights. At this time, an elevator is needed to lift workers and materials to the corresponding heights. Existing elevators are usually of scissor structure, which is flexible in movement and simple and convenient to operate. However, the existing scissor elevators have a relatively simple structure and a low safety factor, and need to be improved.

[0003] The technical solution disclosed in the Chinese patent with the authorization announcement number CN221191414U, by setting an activity groove, a damping spring rod, a push plate and a guide rod, if the scissor frame support generates a bounce, resulting in the failure of the support, the whole scissor frame will be folded. The lower right end movable rod body of the scissor frame will slide to the right side of the base, push the push plate to move along the guide rod in the activity groove, and squeeze the damping spring rod. The damping spring rod can buffer and decelerate the descending impact of the scissor frame through the braking ability of its own damper and the elastic buffer force of the strong spring, prevent the scissor frame from collapsing and shrinking, and prevent irreversible serious damage caused by falling at high speed.

[0004] However, this device still has deficiencies: since this device uses a damping spring rod as the buffer and deceleration structure, the contraction process of the damping spring rod is not uniform. At the beginning of its contraction, its tension is very small, so that the load box at high altitude will also drop a certain height instantaneously at the moment when the scissor frame collapses, which still poses a certain threat to the personnel working at high altitude. Summary of the Utility Model

[0005] The purpose of the utility model is to propose an elevator device for construction engineering aiming at the problems existing in the background art.

[0006] The technical solution of the utility model: an elevator device for construction engineering, including a base, the base is connected with a plurality of auxiliary moving components, the base is symmetrically connected with two groups of scissor supports, and one end of the scissor support far away from the base is connected with a top plate.

[0007] An activity plate, both activity plates are slidably connected with the base and are respectively connected with the movable legs of the corresponding side scissor supports.

[0008] A transmission component, the transmission component is drivingly connected with the two side activity plates.

[0009] A driving component, the driving component is connected with the base and synchronously drives the two side activity plates to slide to adjust the height of the top plate.

[0010] The limiting component, which is connected to the base and the transmission component, limits the transmission component when the driving component suddenly loses force to prevent the top plate from descending rapidly.

[0011] And the feeding component, which is connected to the top plate.

[0012] Preferably, the transmission component includes gear A and two racks. The two racks are respectively connected to the movable plates on the corresponding sides. Gear A is rotatably connected to the base and is located between the two racks on both sides and is meshed with both racks.

[0013] Preferably, the limiting component includes a bracket, a rotating shaft, a turntable and a clamping block. The bracket is connected to the base. The mounting shaft of gear A is rotatably connected to the bracket, and a tooth groove is provided on the bracket. The two ends of the rotating shaft are respectively rotatably connected to the base and the bracket. The two ends of the rotating shaft are respectively connected to gear B and the turntable. Gear B is meshed with gear A, and the outer diameter of gear B is smaller than that of gear A. A plurality of sliding grooves are arranged in an annular array around the axis of the turntable, and a plurality of jacks communicating with the corresponding sliding grooves are arranged on the turntable. The clamping blocks are slidably arranged in the jacks, and springs are arranged in the sliding grooves, and the springs are connected to the clamping blocks.

[0014] Preferably, the driving component includes hydraulic cylinder A. The cylinder body of hydraulic cylinder A is connected to the base, and the push rod of hydraulic cylinder A is connected to one of the movable plates.

[0015] Preferably, the feeding component includes guardrail B, winch and storage basket. Guardrail A is arranged along the edge of the top plate, and a through hole is provided on the top plate. Guardrail B surrounds the periphery of the through hole and is connected to the top plate. The winch is connected to guardrail B, and the output end of the winch is connected to the storage basket.

[0016] Preferably, a control box is arranged on guardrail B. A controller is arranged in the control box. Manipulation buttons are arranged on the control box, and an inclination sensor is arranged at the bottom of the control box.

[0017] Preferably, the auxiliary moving component includes support feet and hydraulic cylinders B. A plurality of guide frames are arranged at the bottom of the base. Each support foot is respectively slidably connected to the corresponding guide frame. Wheels are arranged at the bottom of the support feet, and motors for driving the wheels to rotate are arranged inside the support feet. Each hydraulic cylinder B is connected to the base, and the output ends of each hydraulic cylinder B are respectively connected to the corresponding support feet, and the controller controls the connection of each hydraulic cylinder B.

[0018] Compared with the prior art, the utility model has the following beneficial technical effects:

[0019] By setting the mating structure of the tooth grooves, the turntable and the clamping blocks, when the hydraulic cylinder A loses force, the turntable instantaneously accelerates and rotates, and uses centrifugal force to throw the clamping blocks out and into the tooth grooves, realizing the rotational limit of the turntable, thereby restricting the rotation of the gear A, effectively avoiding the instant collapse of the scissor support and preventing the workers or tools in the high-altitude operation on the roof from falling directly. At the same time, the present utility model is also provided with an inclination sensor to detect the inclination angle of the roof, and drives the corresponding support feet to perform adaptive adjustment through the hydraulic cylinder B, so as to keep the roof in a horizontal state and prevent the entire device from tilting on an uneven road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a schematic connection structure diagram of the scissor support and the hydraulic cylinder A;

[0022] Figure 3 is a schematic connection structure diagram of the rack and the limiting component;

[0023] Figure 4 is a schematic connection structure diagram of the components on the guardrail B.

[0024] Reference numerals: 1, base; 2, scissor support; 3, roof; 301, through hole; 4, movable plate; 5, rack; 6, gear A; 7, support; 701, tooth groove; 8, hydraulic cylinder A; 9, gear B; 10, rotating shaft; 11, turntable; 12, clamping block; 13, guardrail A; 14, guardrail B; 15, winch; 16, storage basket; 17, control box; 18, inclination sensor; 19, support foot; 20, hydraulic cylinder B. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Embodiment 1

[0026] As Figures 1 - 4As shown in the figure, a lift equipment for construction engineering proposed by the utility model includes a base 1, a movable plate 4, a transmission assembly, a driving assembly, a limiting assembly and a feeding assembly. The base 1 is connected with a plurality of auxiliary moving assemblies. Two groups of scissor supports 2 are symmetrically connected to the base 1. One end of the scissor support 2 away from the base 1 is connected to a top plate 3. The auxiliary moving assembly includes a support foot 19. Wheels are arranged at the bottom of the support foot 19, and a motor for driving the wheels to rotate is arranged inside the support foot 19. Both movable plates 4 are slidably connected to the base 1 and are respectively connected to the movable legs of the corresponding side scissor supports 2. The transmission assembly includes a gear A6 and two racks 5. The two racks 5 are respectively connected to the corresponding side movable plates 4. The gear A6 is rotatably connected to the base 1. The gear A6 is located between the two racks 5 on both sides and is meshed with the two racks 5 on both sides. The driving assembly includes a hydraulic cylinder A8. The cylinder body of the hydraulic cylinder A8 is connected to the base 1, and the push rod of the hydraulic cylinder A8 is connected to one of the movable plates 4. The driving assembly synchronously drives the movable plates 4 on both sides to slide to adjust the height of the top plate 3. The limiting assembly includes a support 7, a rotating shaft 10, a turntable 11 and a clamping block 12. The support 7 is connected to the base 1. The mounting shaft of the gear A6 is rotatably connected to the support 7. A tooth groove 701 is arranged on the support 7. Both ends of the rotating shaft 10 are rotatably connected to the base 1 and the support 7 respectively. A gear B9 and a turntable 11 are respectively connected to both ends of the rotating shaft 10. The gear B9 is meshed with the gear A6, and the outer diameter of the gear B9 is smaller than that of the gear A6. A plurality of sliding grooves are arranged in a circular array around the axis of the turntable 11. A plurality of jacks communicating with the corresponding side sliding grooves are arranged on the turntable 11. The clamping blocks 12 are slidably arranged in the jacks, and springs are arranged in the sliding grooves. The springs are connected to the clamping blocks 12. The limiting assembly limits the transmission assembly in the state that the driving assembly suddenly loses force to prevent the top plate 3 from dropping rapidly. The feeding assembly is connected to the top plate 3. The feeding assembly includes a guardrail B14, a winch 15 and a storage basket 16. A guardrail A13 is arranged along the edge of the top plate 3. A through hole 301 is arranged on the top plate 3. The guardrail B14 surrounds the periphery of the through hole 301 and is connected to the top plate 3. The winch 15 is connected to the guardrail B14, and the output end of the winch 15 is connected to the storage basket 16.

[0027] In this embodiment, the motor drives the wheels to rotate, thereby moving the entire device to the operation station. Subsequently, the hydraulic cylinder A8 pushes the movable plate 4 on one side to slide. At this time, the movable plate 4 on the other side slides synchronously under the meshing drive of the gear A6 and the rack 5. At this time, the rotation speed of the gear A6 is slow, and the rotation speed of the gear B9 is also slow and uniform, so the latch 12 will not be thrown out. As a result, the two sets of scissor supports 2 simultaneously push the top plate 3 upward to an appropriate height. If the hydraulic cylinder A8 suddenly loses force, at this time, the movable plate 4 slides quickly instantaneously, the gear A6 rotates quickly, and further makes the gear B9 rotate at a faster speed. The rotating shaft 10 under high-speed rotation drives the turntable 11 to rotate, thereby throwing out the latch 12 and snapping it into the tooth groove 701. At this time, due to the restriction of the tooth groove 701 on the latch 12, the gear B9 and the gear A6 no longer rotate, thereby realizing the return-sliding limit of the movable legs of the scissor support 2, effectively preventing the workers operating on the top plate 3 from falling directly, and ensuring the safety of the workers, as well as the equipment and tools. When working on the top plate 3, the storage basket 16 is lowered by the winch 15 to load the materials and tools for construction and then lifted, which can effectively improve the work efficiency of the workers.

[0028] Embodiment 2

[0029] As Figure 1 and Figure 2 shown, a lifting device for construction engineering proposed by the present utility model, compared with Embodiment 1, a control box 17 is provided on the guardrail B14. A controller is provided inside the control box 17. Manipulation buttons are provided on the control box 17, and an inclination sensor 18 is provided at the bottom of the control box 17. The auxiliary moving assembly includes support feet 19 and hydraulic cylinders B20. A plurality of guide frames are provided at the bottom of the base 1, and each support foot 19 is slidably connected to the corresponding guide frame. Each hydraulic cylinder B20 is connected to the base 1, and the output ends of each hydraulic cylinder B20 are respectively connected to the corresponding support foot 19, and the controller is connected to control each hydraulic cylinder B20.

[0030] In this embodiment, when the ground is uneven, the top plate 3 is in a skewed state. At this time, the inclination sensor 18 detects the inclination angle and direction of the top plate 3 and feeds the signal back to the controller. The controller controls the corresponding hydraulic cylinder B20 to start and push the connected support foot 19 to extend or retract, thereby automatically adjusting the top plate 3 to a horizontal state and preventing the entire lift from being skewed and unstable.

[0031] The embodiments of the present utility model have been described in detail above with reference to the drawings. However, the present utility model is not limited to this. Various changes can be made without departing from the spirit of the present utility model within the knowledge scope of those skilled in the art.

Claims

1. A lifting equipment for construction engineering, characterized in that: include A base (1), the base (1) is connected to a plurality of auxiliary moving components, the base (1) is symmetrically connected to two groups of scissor-type brackets (2), and one end of the scissor-type brackets (2) away from the base (1) is connected to a top plate (3); Movable plates (4), both movable plates (4) slide with the base (1) and are respectively connected to movable legs of the scissor-type brackets (2) on corresponding sides; A transmission assembly, the transmission assembly is transmission-connected to the movable plates (4) on both sides; A driving assembly connected to the base (1) and synchronously driving the movable plates (4) on both sides to slide so as to adjust the height of the top plate (3); A limit assembly, the limit assembly is connected to the base (1) and the transmission assembly, and the limit assembly limits the transmission assembly when the driving assembly suddenly loses power, so as to prevent the top plate (3) from falling rapidly; And a loading assembly, which is connected to the top plate (3).

2. A construction engineering lift equipment according to claim 1, characterized in that: The transmission assembly comprises a gear A (6) and two racks (5), wherein the two racks (5) are respectively connected to the movable plates (4) on the corresponding sides, the gear A (6) is rotationally connected to the base (1), and the gear A (6) is located between the racks (5) on both sides and is meshedly connected to the racks (5) on both sides.

3. A construction engineering lift equipment according to claim 2, characterized in that: The limit assembly comprises a bracket (7), a rotating shaft (10), a rotating disk (11) and a clamping block (12); the bracket (7) is connected to the base (1), the mounting shaft of the gear A (6) is rotatably connected to the bracket (7), and a tooth groove (701) is arranged on the bracket (7); the two ends of the rotating shaft (10) are rotatably connected to the base (1) and the bracket (7), the two ends of the rotating shaft (10) are respectively connected to the gear B (9) and the rotating disk (11), the gear B (9) is meshedly connected to the gear A (6), and the outer diameter of the gear B (9) is smaller than the outer diameter of the gear A (6); the rotating disk (11) is provided with a plurality of slide grooves in an annular array around its axis, and the rotating disk (11) is provided with a plurality of jacks connected to the slide grooves on the corresponding sides, the clamping block (12) is slidably arranged in the jack, and a spring is arranged in the slide groove, and the spring is connected to the clamping block (12).

4. A construction engineering lift equipment according to claim 1, characterized in that: The driving assembly comprises a hydraulic cylinder A (8), a cylinder body of the hydraulic cylinder A (8) is connected to the base (1), and a push rod of the hydraulic cylinder A (8) is connected to one of the movable plates (4).

5. A construction engineering lift equipment according to claim 1, characterized in that: The loading assembly comprises a guardrail B (14), a winch (15) and a storage basket (16); a guardrail A (13) is arranged on the top plate (3) along its edge, and a through hole (301) is arranged on the top plate (3); the guardrail B (14) surrounds the circumference of the through hole (301) and is connected to the top plate (3); the winch (15) is connected to the guardrail B (14), and the output end of the winch (15) is connected to the storage basket (16).

6. A construction engineering lift equipment according to claim 5, characterized in that: A control box (17) is arranged on the guardrail B (14), a controller is arranged in the control box (17), a control button is arranged on the control box (17), and a tilt sensor (18) is arranged at the bottom of the control box (17).

7. A construction engineering lift equipment according to claim 6, characterized in that: The auxiliary moving assembly comprises a supporting foot (19) and a hydraulic cylinder B (20); a plurality of guide frames are arranged at the bottom of the base (1); each supporting foot (19) is slidably connected to the guide frame on the corresponding side; a wheel is arranged at the bottom of the supporting foot (19); a motor for driving the wheel to rotate is arranged inside the supporting foot (19); each hydraulic cylinder B (20) is connected to the base (1); an output end of each hydraulic cylinder B (20) is connected to the supporting foot (19) on the corresponding side; and a controller controls the connection of each hydraulic cylinder B (20).

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