A high-efficiency material lifting device for construction

Abstract

This utility model relates to the field of building construction technology and discloses a high-efficiency material lifting device for building construction. It includes a support frame, a motor mounted at the bottom, a lifting base and a material cart in the middle, and limit plates on both sides of the top. Two sets of first and second gears, connected by rotating rods, are rotatably mounted on the bottom and back sides of the support frame, respectively. These gears mesh with a chain, and the motor drives the first gear to rotate, which in turn drives the chain to lift the base. Slide rods are mounted on both sides of the support frame. Multiple sets of pulleys are rotatably mounted on both sides of the mounting plate of the lifting base and slidably connected to the slide rods, serving as guides and limiters. The lifting base includes a mounting plate, connecting blocks, pulleys, etc. A slot seat is rotatably mounted between the mounting plates. The material cart slides into the slot seat via a slider. A locking device is located at the top of the slot seat. By moving a lever, a connecting rod is moved, causing a pin to slide within a limit sleeve, engaging with the opening of the material cart's insertion rod to fix the material cart, ensuring safe and stable material lifting.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a high-efficiency material lifting device for building construction. Background Technology

[0002] In the construction industry, vertical material transportation is a critical and frequent task, and its efficiency and safety directly affect the progress and quality of the entire project. Traditional methods of material lifting in construction mainly include manual handling, simple cranes, or traditional material hoists. However, these traditional methods have many limitations in practical applications. Manual handling is labor-intensive and inefficient, especially for high-rise building construction. Manual handling not only consumes a lot of manpower, but also increases dramatically in difficulty and danger with increasing building height, greatly limiting construction efficiency and posing a threat to the health of construction workers. While simple cranes can improve the height and efficiency of material lifting to some extent, their relatively simple structure results in poor stability. During lifting, problems such as swaying and tilting can easily occur, increasing the risk of materials falling and seriously affecting construction safety. In addition, operating simple cranes requires a high level of skill. The skill level required for material hoists is limited, and they are greatly affected by environmental factors such as weather and site conditions, making it difficult to meet the complex and ever-changing needs of construction. Although traditional material hoists have improved in structure and function, they still have some shortcomings. For example, the transmission system design of some traditional material hoists is not reasonable enough, using a single gear and chain drive structure. When running for a long time or carrying heavy materials, the chain is prone to vibration and slippage, resulting in unstable material cart trajectory and reducing the safety and reliability of material hoisting. Moreover, the connection and separation operation of traditional material hoists between the material cart and the hoisting base is relatively cumbersome, usually requiring complex manual fixing and disassembly operations. This not only consumes a lot of time and manpower but also increases the labor intensity of construction workers, affecting the efficiency of material loading and unloading, and thus restricting the construction progress of the entire project. In order to solve the above problems, we propose a high-efficiency material hoisting device for construction. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-efficiency material lifting device for construction, which solves the aforementioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a high-efficiency material lifting device for construction, comprising a support frame, a motor fixedly installed on one side of the support frame near the bottom, a lifting base provided in the middle of the support frame, and a material cart provided on the lifting base, and a set of limiting plates fixedly installed on both sides of the support frame near the top, and further comprising:

[0005] The locking device is located at the top of the slot seat. By moving the lever, the first and second connecting rods move, causing the pin to slide within the limiting sleeve. This allows the pin to engage and disengage with the opening on the insert rod of the material cart, firmly fixing the material cart to the lifting base and preventing it from shaking or falling off during lifting. This ensures the safety and stability of material lifting, protecting the lives of construction personnel and the progress of construction.

[0006] Preferably, a set of first gears is rotatably installed on both sides of the bottom of the bracket, and the two sets of first gears are fixedly connected together by a rotating rod. Two sets of second gears are rotatably installed on the side of the bracket opposite to the two sets of first gears, and the two sets of second gears are directly fixedly connected together by a rotating rod. The two sets of first gears and the two sets of second gears are directly meshed with a chain.

[0007] Preferably, two sets of sliding rods are fixedly installed on both sides of the bracket, and the top of the sliding rods near the two sets of limiting plates is arc-shaped.

[0008] Preferably, the lifting base includes a mounting plate, a connecting block, pulleys, a support plate, and a fixing rod. A connecting block is fixedly installed on one side of each of the two sets of chains, and a mounting plate is fixedly installed on the side of each of the two sets of connecting blocks away from the chains. Multiple pulleys are rotatably installed on both sides of the two sets of mounting plates near the connecting blocks, and the multiple pulleys are slidably installed together with the sliding rod. A fixing rod is fixedly installed between the two sets of mounting plates, and a support plate is fixedly installed at the bottom of each of the two sets of mounting plates.

[0009] Preferably, the lifting base further includes a slot seat and an inclined plate. The slot seat is rotatably installed between the two sets of mounting plates via a fixing rod. Sliding grooves are provided inside both sides of the slot seat. An inclined plate is fixedly installed at each end of the slot seat near the bracket. A set of rotating shafts is rotatably installed on the side of the two inclined plates away from the slot seat. Two locking devices are provided on one side of the top of the slot seat.

[0010] Preferably, the locking device includes a mounting base, a pin, a limiting sleeve, a first connecting rod, a second connecting rod, and a lever. Two sets of mounting bases are fixedly installed on the top of the slot seat near the two sets of inclined plates, and the two sets of mounting bases are symmetrical. A set of second connecting rods is hinged to one side of the top of each of the two sets of mounting bases, and a set of first connecting rods is hinged to the other end of each of the two sets of second connecting rods. A set of pins is hinged to the side of each of the two sets of first connecting rods away from the second connecting rods. A set of limiting sleeves is fixedly installed on the middle part of each of the two sets of mounting bases near the pins. The two sets of pins are slidably installed in the limiting sleeves. A lever is hinged to the top of the hinge joint of each of the two sets of first and second connecting rods.

[0011] Preferably, two sets of insert rods are fixedly installed on the side of the material cart near the support, and each set of insert rods has a set of openings in the middle, and both sets of openings correspond to the pins. Slider blocks corresponding to the card slots are fixedly installed on both sides of the material cart.

[0012] Compared with the prior art, this utility model provides a high-efficiency material lifting device for construction, which has the following beneficial effects:

[0013] 1. This high-efficiency material lifting device for construction uses a more efficient design. Traditional material lifting devices are cumbersome to connect and disconnect material carts from the lifting base, requiring manual handling of the carts, which is time-consuming, labor-intensive, and increases the workload of construction workers. This device achieves rapid connection and disconnection of the material carts from the lifting base through a clever design. The slot seat in the lifting base is rotatably installed between two sets of mounting plates via a fixed rod. Slide grooves are opened inside both sides of the slot seat, and corresponding sliders are fixedly installed on both sides of the material cart. At the same time, inclined plates are fixedly installed at both ends of the slot seat near the support, and a rotating shaft is rotatably installed on the side of the inclined plates away from the slot seat. When the material cart slides into the slot seat, the inclined plates and the rotating shaft guide it, allowing the cart to enter the slot seat smoothly and reducing collisions and friction between the cart and the slot seat. This design allows the material cart to slide into the slot seat easily, making operation simple and quick, greatly improving the efficiency of material loading and unloading, saving construction time, and helping to accelerate the construction progress.

[0014] 2. This high-efficiency material lifting device for construction often falls short of traditional material lifting devices in terms of material securing. Material carts are prone to shaking or falling off during lifting, posing significant safety hazards to construction workers. This device features two sets of locking devices at the top of the slot base. Through ingenious structural design, it achieves a secure fixation of the material cart. In the locking device, the mounting base is fixedly installed at the top of the slot base, the second connecting rod is hinged to one side of the top of the mounting base, the first connecting rod is hinged to the other end of the second connecting rod, and a pin is hinged to the first connecting rod opposite to the second connecting rod. On one side, a limiting sleeve is fixedly installed on the mounting base near the middle of the pin. The pin is slidably installed inside the limiting sleeve. A lever is hinged at the top of the hinge joint between the first and second connecting rods. By moving the lever, the first and second connecting rods are moved, causing the pin to slide inside the limiting sleeve. This achieves the engagement and disengagement of the pin with the opening of the pin on the material cart. This locking device can firmly fix the material cart on the lifting base, preventing the material cart from shaking or falling off during the lifting process. It ensures the safety and stability of material lifting and provides strong protection for the life safety of construction personnel and the progress of construction. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view schematic diagram of the present invention;

[0016] Figure 2 This is a partial sectional view of the bracket of this utility model;

[0017] Figure 3 This is a partial schematic diagram of the lifting base of this utility model;

[0018] Figure 4 This is a schematic diagram of the card slot base of this utility model;

[0019] Figure 5 This is a schematic diagram of the material cart of this utility model.

[0020] In the diagram: 1. Bracket; 2. Motor; 3. First gear; 4. Chain; 5. Second gear; 6. Material cart; 7. Lifting base; 8. Slide rod; 9. Mounting plate; 10. Connecting block; 11. Pulley; 12. Support plate; 13. Fixing rod; 14. Slot seat; 15. Inclined plate; 16. Mounting base; 17. Pin; 18. Limit sleeve; 19. First connecting rod; 20. Second connecting rod; 21. Lever. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 A high-efficiency material lifting device for construction includes a support frame 1, a motor 2 fixedly installed on one side of the support frame 1 near its bottom, a lifting base 7 provided in the middle of the support frame 1, and a material cart 6 provided on the lifting base 7. A set of limiting plates are fixedly installed on both sides of the support frame 1 near its top. The device also includes:

[0023] The locking device is located at the top of the slot seat 14. By moving the lever 21, the first connecting rod 19 and the second connecting rod 20 are driven to move, thereby causing the pin 17 to slide within the limiting sleeve 18. This allows the pin 17 to engage and disengage with the insertion hole on the material cart 6, firmly fixing the material cart 6 to the lifting base 7. This prevents the material cart 6 from shaking or falling off during the lifting process, ensuring the safety and stability of the material lifting, and protecting the lives of construction personnel and the progress of construction.

[0024] Furthermore, a set of first gears 3 are rotatably installed on both sides of the bottom of the bracket 1, and the two sets of first gears 3 are fixedly connected together by a rotating rod. Two sets of second gears 5 are rotatably installed on the side of the bracket 1 opposite to the two sets of first gears 3, and the two sets of second gears 5 are directly fixedly connected together by a rotating rod. The two sets of first gears 3 and the two sets of second gears 5 are directly meshed with a chain 4. The motor 2 drives the two sets of first gears 3 to rotate, thereby driving the chain 4 to achieve the lifting of the base 7, providing stable lifting power for the material cart 6. The arrangement of the two sets of first gears 3 and the two sets of second gears 5 makes the chain 4 transmission smoother, improves the stability and reliability of material lifting, and ensures the safety of material transportation during construction.

[0025] Furthermore, two sets of sliding rods 8 are fixedly installed on both sides of the bracket 1, and the top of the sliding rods 8 near the two sets of limiting plates is arc-shaped. The setting of the sliding rods 8, together with the multiple sets of pulleys 11 rotatably installed on both sides of the mounting plate 9 on the lifting base 7, allows the pulleys 11 to slide along the sliding rods 8 during the lifting process of the lifting base 7, playing a guiding and limiting role, ensuring that the lifting base 7 always maintains a stable movement trajectory, further enhancing the stability of the material lifting device, reducing shaking, and improving the material transportation efficiency.

[0026] Furthermore, the lifting base 7 includes a mounting plate 9, a connecting block 10, pulleys 11, a support plate 12, and a fixing rod 13. A connecting block 10 is fixedly installed on one side of each of the two sets of chains 4, and a mounting plate 9 is fixedly installed on the side of each of the two sets of connecting blocks 10 away from the chains 4. Multiple pulleys 11 are rotatably installed on both sides of the two sets of mounting plates 9 near the connecting blocks 10, and all the pulleys 11 are slidably installed together with the sliding rod 8. A fixing rod 13 is fixedly installed between the two sets of mounting plates 9, and a support plate 12 is fixedly installed at the bottom of each of the two sets of mounting plates 9. The slot seat 14 in the lifting base 7 is rotatably installed between the two sets of mounting plates 9 through the fixing rod 13, and the slot seat 14 has sliding grooves on both sides. The material cart 6 has sliders fixedly installed on both sides corresponding to the slot seat 14. This design allows the material cart 6 to easily slide into the slot seat 14, facilitating the connection and separation of the material cart 6 and the lifting base 7. The operation is simple and quick, improving the efficiency of material loading and unloading and saving construction time.

[0027] Furthermore, the lifting base 7 also includes a slot seat 14 and an inclined plate 15. The slot seat 14 is rotatably installed between the two sets of mounting plates 9 via a fixing rod 13. Sliding grooves are provided inside both sides of the slot seat 14. An inclined plate 15 is fixedly installed at both ends of the slot seat 14 near the support 1. A rotating shaft is rotatably installed on the side of the two inclined plates 15 away from the slot seat 14. Two locking devices are provided on one side of the top of the slot seat 14. The inclined plates 15 fixedly installed at both ends of the slot seat 14 near the support 1 and the rotating shafts rotatably installed on the side of the inclined plates 15 away from the slot seat 14 play a guiding role when the material cart 6 slides into the slot seat 14, so that the material cart 6 can enter the slot seat 14 more smoothly, reducing the collision and friction between the material cart 6 and the slot seat 14, reducing equipment wear, and extending the service life of the equipment.

[0028] Furthermore, the locking device includes a mounting base 16, a pin 17, a limiting sleeve 18, a first connecting rod 19, a second connecting rod 20, and a lever 21. Two sets of mounting bases 16 are fixedly installed on the top of the slot seat 14 near the two sets of inclined plates 15, and the two sets of mounting bases 16 are symmetrical. A set of second connecting rods 20 is hinged to one side of the top of each of the two sets of mounting bases 16, and a set of first connecting rods 19 is hinged to the other end of each of the two sets of second connecting rods 20. A set of pins 17 is hinged to the side of each of the two sets of first connecting rods 19 away from the second connecting rods 20. The middle parts of the two sets of mounting bases 16 near the pins 17 are respectively fixedly installed. A set of limiting sleeves 18 is provided, and two sets of pins 17 are slidably installed inside the limiting sleeves 18. A set of levers 21 are respectively hinged to the top of the hinge joints of the two sets of first connecting rods 19 and second connecting rods 20. The locking device is set so that by moving the levers 21, the first connecting rods 19 and second connecting rods 20 are driven to move, thereby causing the pins 17 to slide inside the limiting sleeves 18. This realizes the engagement and disengagement of the pins 17 with the openings on the material cart 6, which can firmly fix the material cart 6 on the lifting base 7, prevent the material cart 6 from shaking or falling off during the lifting process, ensure the safety and stability of material lifting, and protect the life safety of construction personnel and the construction progress.

[0029] Furthermore, two sets of insert rods are fixedly installed on the side of the material cart 6 near the bracket 1. Each set of insert rods has a hole in the middle, and both holes correspond to the pin 17. Slider blocks corresponding to the slot seat 14 are fixedly installed on both sides of the material cart 6.

[0030] Structural Description: 1. Bracket 1: Function: Serves as the supporting structure for the entire device, bearing components such as motors, gears, chains, and slide bars, and providing a stable installation foundation. Position: Located on the periphery of the entire device, fixedly installed on the ground or other supporting structures. Principle: Through its stable structure, it provides a supporting environment for the installation and operation of other components.

[0031] 2. Motor 2: Function: Provides power to drive the first gear to rotate, which in turn drives the chain drive to lift the base. Position: Fixedly installed on the side of the bracket near the bottom. Principle: Converts electrical energy into mechanical energy to drive the first gear to rotate.

[0032] 3. First gear 3: Function: meshes with the chain, transmits the power of the motor to the chain, and drives the chain drive. Position: Rotatably installed on both sides of the bottom of the bracket, and the two sets of first gears are fixedly connected together by a rotating rod. Principle: The rotation of the gear drives the chain that meshes with it to move.

[0033] 4. Chain 4: Function: Transmits power, connects the first gear and the second gear, and realizes the lifting and lowering of the base. Positional relationship: Directly meshes with the two sets of first gears and the two sets of second gears. Principle: Driven by the gears, the chain transmits power and drives the lifting base to rise and fall.

[0034] 5. Second gear 5: Function: meshes with the chain to assist in chain transmission and make the chain transmission smoother. Position: rotatedly installed inside the bracket on the side opposite to the two sets of first gears, and the two sets of second gears are directly fixed together through the rotating rod. Principle: through the rotation of the gear, in coordination with the first gear, the chain transmission is made more stable.

[0035] 6. Material Cart 6: Function: Loads materials and lifts and transports them under the drive of the lifting base. Position: Set on the lifting base. Principle: Through connection and separation with the lifting base, the loading, unloading and transportation of materials are realized.

[0036] 7. Lifting base 7: Function: To support the material cart and realize the lifting and lowering of the material cart. Position: Set in the middle of the bracket. Principle: Through chain transmission, the lifting base is driven to lift and lower, thereby realizing the lifting and lowering of the material cart.

[0037] 8. Slide bar 8: Function: Provides guidance and limit for lifting base, ensuring that lifting base always maintains a stable movement trajectory. Position: Fixedly installed on both sides of the bracket. Principle: The pulley on the lifting base slides along the slide bar to achieve the guidance and limit functions.

[0038] 9. Mounting Plate 9: Function: As the main load-bearing structure of the lifting base, it installs components such as connecting blocks, pulleys, and fixing rods. Position: It is fixedly installed on one side of the chain and connected to the chain through the connecting blocks. Principle: Through its stable structure, it provides a support environment for the installation and operation of other components.

[0039] 10. Connecting Block 10: Function: Connects the chain and the mounting plate, transmitting the power of the chain to the mounting plate. Position: Fixedly installed on one side of the chain and one side of the mounting plate. Principle: Through its connecting function, it realizes the power transmission between the chain and the mounting plate.

[0040] 11. Pulley 11: Function: Slides along the slide bar to provide guidance and limit for lifting the base. Position: Rotatably mounted on both sides of the mounting plate. Principle: Through sliding cooperation with the slide bar, it realizes the guiding and limiting functions of lifting the base.

[0041] 12. Support plate 12: Function: Provides additional support for the mounting plate, enhancing the stability of the lifting base. Position: Fixedly installed at the bottom of the mounting plate. Principle: Improves the load-bearing capacity and stability of the lifting base through its supporting function.

[0042] 13. Fixing rod 13: Function: Connects the mounting plate and the slot seat, allowing the slot seat to rotate relative to the mounting plate. Positional relationship: Fixedly installed between two sets of mounting plates, the slot seat is rotatably installed between the two sets of mounting plates through the fixing rod. Principle: Through its connecting function, relative rotation between the slot seat and the mounting plate is achieved.

[0043] 14. Slot 14: Function: To support the material cart. It connects and separates the material cart by cooperating with the slider of the material cart through the slide groove. Position: It is rotatably installed between two sets of mounting plates by a fixed rod. Principle: It realizes the loading, unloading and transportation of the material cart by cooperating with the slider of the material cart through its slide groove.

[0044] 15. Inclined plate 15: Function: It guides the material cart as it slides into the slot, allowing it to enter the slot more smoothly. Position: It is fixedly installed at both ends of the slot near the support. Principle: Its inclined surface design reduces the collision and friction between the material cart and the slot.

[0045] 16. Mounting base 16: Function: Provides a mounting base for other components of the locking device. Position: Fixedly installed on the top of the slot seat, near the two sets of inclined plates. Principle: Through its stable structure, it provides a support environment for the installation and operation of other components.

[0046] 17. Pin 17: Function: To cooperate with the insertion hole on the material cart to firmly fix the material cart on the lifting base. Position: Slidingly installed in the limiting sleeve, connected to the lever through the first connecting rod. Principle: By moving the lever, the first and second connecting rods move, thereby causing the pin to slide in the limiting sleeve, realizing the cooperation and separation with the insertion hole on the material cart.

[0047] 18. Limiting sleeve 18: Function: To limit the movement trajectory of the pin and ensure that the pin can accurately engage with the insertion hole on the material cart. Position: Fixedly installed on the mounting base near the middle of the pin. Principle: Through its limiting function, it ensures that the sliding trajectory of the pin is accurate.

[0048] 19. First Link 19: Function: Connects the pin and the second link, transmitting the power of the lever to the pin. Position: Hinged on the other end of the second link and one side of the pin. Principle: Through its hinged action, the power transmission between the lever and the pin is realized.

[0049] 20. Second Link 20: Function: Connects the first link and the mounting base, transmitting the power of the lever to the first link. Position: Hinged on one side of the top of the mounting base and one side of the first link. Principle: Through its hinged action, the power transmission between the lever and the first link is realized.

[0050] 21. Lever 21: Function: By levering, it drives the first and second connecting rods to move, thereby causing the pin to slide within the limiting sleeve. Position: It is hinged to the top of the hinge joint of the first and second connecting rods. Principle: Through its levering action, it enables the pin to engage and disengage with the opening of the insert rod on the material cart.

[0051] Instructions for use

[0052] Motor 2 drives two sets of first gears 3 to rotate. Since the two sets of first gears 3 are connected by a rotating rod and rotate synchronously, they drive the chain 4 that meshes with them. Two sets of second gears 5 mesh with the other side of the chain 4 and move with it. Connecting blocks 10 on the chain 4 drive the mounting plate 9 and the entire lifting base 7 to rise and fall along the slide bar 8, realizing the lifting and lowering of the material cart 6. The arrangement of the two sets of first gears 3 and the two sets of second gears 5 ensures smooth chain transmission, guaranteeing the stability and reliability of material lifting. The slide bars 8 fixed on both sides of the bracket 1 cooperate with the pulleys 11 rotatably mounted on both sides of the mounting plate 9 on the lifting base 7. When the lifting base 7 rises and falls, the pulleys 11 slide along the slide bars 8, serving as guides and limiters, ensuring the stability of the lifting base 7's movement trajectory, reducing swaying, and improving material transport efficiency. The top of the slide bar 8 near the limit plate is arc-shaped to ensure continuous and stable lifting. The slot seat 14 in the lifting base 7 is rotatably installed between the two sets of mounting plates 9 through the fixing rod 13. Slide grooves are opened inside both sides of the slot seat 14. The material cart 6 is fixedly installed on both sides with sliders corresponding to the slot seat 14. Two sets of insert rods are fixedly installed on the side of the material cart 6 near the bracket 1, and the insert rods have openings in the middle. The slot seat 14 is fixedly mounted with inclined plates 15 at both ends on the side near the bracket 1. The inclined plates 15 are rotatably mounted with a rotating shaft on the side away from the slot seat 14. When the material cart 6 slides into the slot seat 14, the inclined plates 15 and the rotating shaft play a guiding role, so that the material cart 6 can smoothly enter the slot seat 14, reducing collisions and friction, facilitating the connection and separation of the material cart 6 and the lifting base 7, and improving the material loading and unloading efficiency. Two sets of locking devices are set at the top of the slot seat 14. In the locking device, the mounting base 16 is fixedly mounted at the top of the slot seat 14, the second connecting rod 20 is hinged to one side of the top of the mounting base 16, the first connecting rod 19 is hinged to the other end of the second connecting rod 20, the pin 17 is hinged to the side of the first connecting rod 19 away from the second connecting rod 20, the limiting sleeve 18 is fixedly mounted on the mounting base 16 near the middle of the pin 17, the pin 17 is slidably mounted in the limiting sleeve 18, and the lever 21 is hinged to the top of the hinge point of the first connecting rod 19 and the second connecting rod 20. By moving the lever 21, the first connecting rod 19 and the second connecting rod 20 are driven to move, causing the pin 17 to slide within the limiting sleeve 18. This allows the pin 17 to engage and disengage with the insertion hole on the material cart 6, firmly fixing the material cart 6 to the lifting base 7. This prevents the material cart 6 from shaking or falling off during the lifting process, ensuring the safety and stability of the material lifting. The top of the slide bar 8 near the limiting plate is arc-shaped, so that when the lifting base 7 reaches the top, the rotating shaft can drive the slot seat 14 to flip along the slide bar 8 through the fixing rod 13, thereby causing the material cart 6 to flip and tilt the material.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency material lifting device for construction, comprising a support (1), wherein a motor (2) is fixedly installed on one side of the support (1) near the bottom, a lifting base (7) is provided in the middle of the support (1), and a material cart (6) is provided on the lifting base (7), and a set of limiting plates are fixedly installed on both sides of the support (1) near the top, characterized in that, Also includes: The locking device is set at the top of the slot seat (14). By moving the lever (21), the first connecting rod (19) and the second connecting rod (20) are driven to move, thereby causing the pin (17) to slide in the limiting sleeve (18), realizing the engagement and separation of the pin (17) and the insertion hole on the material cart (6). This can firmly fix the material cart (6) on the lifting base (7), preventing the material cart (6) from shaking or falling off during the lifting process, ensuring the safety and stability of material lifting, and protecting the life safety of construction personnel and the construction progress.

2. The high-efficiency material lifting device for construction as described in claim 1, characterized in that: A set of first gears (3) are rotatably installed on both sides of the bottom of the bracket (1), and the two sets of first gears (3) are fixedly connected together by a rotating rod. Two sets of second gears (5) are rotatably installed on the side of the bracket (1) away from the two sets of first gears (3), and the two sets of second gears (5) are directly fixedly connected together by a rotating rod. The two sets of first gears (3) and the two sets of second gears (5) are directly meshed with a chain (4).

3. The high-efficiency material lifting device for construction as described in claim 1, characterized in that: Two sets of slide rods (8) are fixedly installed on both sides of the bracket (1), and the top of the slide rods (8) near the two sets of limiting plates is arc-shaped.

4. The high-efficiency material lifting device for building construction according to claim 2, characterized in that: The lifting base (7) includes a mounting plate (9), a connecting block (10), a pulley (11), a support plate (12), and a fixing rod (13). A connecting block (10) is fixedly installed on one side of each of the two sets of chains (4), and a mounting plate (9) is fixedly installed on the side of each of the two sets of connecting blocks (10) away from the chain (4). Multiple pulleys (11) are rotatably installed on both sides of the two sets of mounting plates (9) near the connecting block (10), and multiple pulleys (11) are slidably installed together with the sliding rod (8). A fixing rod (13) is fixedly installed between the two sets of mounting plates (9), and a support plate (12) is fixedly installed at the bottom of each of the two sets of mounting plates (9).

5. The high-efficiency material lifting device for building construction according to claim 4, characterized in that: The lifting base (7) also includes a slot seat (14) and an inclined plate (15). The slot seat (14) is rotatably installed between the two sets of mounting plates (9) via a fixing rod (13). The slot seat (14) has a sliding groove on both sides. An inclined plate (15) is fixedly installed at both ends of the slot seat (14) near the bracket (1). A set of rotating shafts is rotatably installed on the side of the two inclined plates (15) away from the slot seat (14). Two locking devices are provided on one side of the top of the slot seat (14).

6. The high-efficiency material lifting device for building construction according to claim 5, characterized in that: The locking device includes a mounting base (16), a pin (17), a limiting sleeve (18), a first connecting rod (19), a second connecting rod (20), and a lever (21). Two sets of mounting bases (16) are fixedly installed on the top of the slot seat (14) near the two sets of inclined plates (15), and the two sets of mounting bases (16) are symmetrical. A set of second connecting rods (20) is hinged to one side of the top of each of the two sets of mounting bases (16), and the other ends of the two sets of second connecting rods (20) are respectively... A set of first connecting rods (19) is hinged together. A set of pins (17) is hinged together on the side of the two sets of first connecting rods (19) away from the second connecting rod (20). A set of limiting sleeves (18) is fixedly installed on the middle part of the two sets of mounting bases (16) near the pins (17). The two sets of pins (17) are slidably installed in the limiting sleeves (18). A set of levers (21) is hinged together at the top of the hinge joint of the two sets of first connecting rods (19) and second connecting rods (20).

7. The high-efficiency material lifting device for building construction according to claim 1, characterized in that: Two sets of insert rods are fixedly installed on the side of the material cart (6) near the bracket (1). Each set of insert rods has a set of openings in the middle, and both sets of openings correspond to the pins (17). Slider blocks corresponding to the slot seats (14) are fixedly installed on both sides of the material cart (6).

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