A security door installation auxiliary lifting device

Abstract

This utility model relates to the field of door installation technology and discloses an auxiliary lifting device for security door installation. It includes a lifting chamber, with multiple power columns fixedly connected to the inner wall of the bottom end of the lifting chamber. A movable plate is fixedly connected to the top of each of the power columns. Multiple damping rods are fixedly connected to the inner wall of the bottom end of the lifting chamber. Multiple support columns are fixedly connected to the inner wall of the bottom end of the lifting chamber. A fixing block is fixedly connected to the top of each of the support columns. A rotating shaft is rotatably connected to the inner wall of each of the fixing blocks. Resistance rods are fixedly connected to the outer sides of two of the rotating shafts. This utility model effectively solves the problem of damage to the connection between the door and the door frame caused by excessively fast descent during the use of auxiliary lifting devices for security door installation. It improves the safety and reliability of security door installation, extends the service life of the security door and door frame, and reduces installation and maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of door installation technology, and in particular to an auxiliary lifting device for installing security doors. Background Technology

[0002] Security doors are special doors whose core function is to ensure security. They are mainly made of high-strength metal materials such as steel and stainless steel, combined with precision locks, reinforced hinges and other components. They have anti-pry, anti-drilling and anti-impact characteristics. Through special processing, their corrosion resistance and anti-destruction resistance are improved, which can effectively resist illegal intrusion and build a security barrier for homes, commercial places and other places. At the same time, design elements are incorporated into the shape and color, which also have a certain degree of aesthetics and decoration, to meet the use needs of different scenarios.

[0003] The auxiliary lifting device for security door installation uses mechanical, hydraulic, or electric systems as its power source. It stabilizes the base through a support mechanism and uses hydraulic cylinder extension and retraction, electric screw rotation, or chain traction in the lifting mechanism to raise and lower the security door vertically. The wheels or rails in the moving mechanism assist the device and the security door in horizontal displacement to the installation point. The positioning and clamping mechanism uses positioning pins, laser positioning, or hydraulic clamping components to accurately fix the position and angle of the security door. Finally, the control mechanism coordinates the operation of all components to ensure that the entire installation process is safe, efficient, and accurate.

[0004] However, some existing auxiliary lifting devices for security doors suffer from damage at the connection between the door and frame due to excessively fast descent speed. This is because these devices have design flaws in their lifting mechanisms, lacking a buffer control mechanism. Consequently, the descent speed is often difficult to control properly, resulting in excessively rapid descent. When a heavy security door reaches the installation position too quickly, it generates a huge impact force at the connection between the door and frame. This impact force far exceeds the normal load that the security door and frame can withstand, easily causing deformation of the door edges and dents in the frame surface. This not only seriously affects the installation quality and performance of the security door but also creates potential safety hazards, reducing the door's anti-theft effect and lifespan. Therefore, an auxiliary lifting device for security door installation is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an auxiliary lifting device for installing security doors, which aims to improve the problem that the existing auxiliary lifting devices for installing security doors have a descent speed that causes damage to the connection between the door and the door frame.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an auxiliary lifting device for installing a security door, comprising a lifting chamber, wherein multiple power columns are fixedly connected to the inner wall of the bottom end of the lifting chamber, a movable plate is fixedly connected to the top of the multiple power columns, multiple damping rods are fixedly connected to the inner wall of the bottom end of the lifting chamber, multiple support columns are fixedly connected to the inner wall of the bottom end of the multiple lifting chamber, a fixing block is fixedly connected to the top of each of the multiple support columns, a rotating shaft is rotatably connected to the inner wall of each of the multiple fixing blocks, resistance rods are fixedly connected to the outer sides of two rotating shafts, a rotating shaft is fixedly connected to the far side of each of the two resistance rods, a fixing block is rotatably connected to the outer side of each of the two rotating shafts, a connecting plate is fixedly connected to the top of each of the two damping rods, a fixing column is fixedly connected to the outer side of each of the two resistance rods, a damping rod is rotatably connected to the near side of each of the two fixing columns, and a support assembly for support is fixedly connected to the right side of the lifting chamber.

[0007] As a further description of the above technical solution: the support assembly includes a support rod, the bottom left end of which is fixedly connected to the right side of the lifting chamber. Two push rods are fixedly connected to the inner wall of the top end of the support rod. Movable blocks are fixedly connected to the bottom ends of the two push rods. Connecting columns one is fixedly connected to the bottom ends of the two movable blocks. Connecting shafts one is rotatably connected to the inside of the two connecting columns one. Connecting rods are fixedly connected to the outside of the two connecting shafts one. Two connecting shafts two are rotatably connected to the inner wall of the bottom end of the support rod. Support bars are fixedly connected to the outside of the two connecting shafts two on opposite sides. Connecting shafts three are rotatably connected to the inside of the bottom ends of the two connecting rods two on opposite sides. Connecting columns two are fixedly connected to the bottom ends of the two connecting shafts three. Connecting shafts four are fixedly connected to the bottom ends of the two connecting columns two.

[0008] As a further description of the above technical solution: the two connecting shafts are rotatably connected to the inner wall of the top of the support bar, and the two support bars are slidably connected to the inner walls of the front and rear sides of the support rod.

[0009] As a further description of the above technical solution: the two connecting rods are externally slidably connected to the inner walls of the two support bars, the two moving blocks are externally slidably connected to the inner walls of the support rods, and the bottom ends of the two support bars on opposite sides are respectively rotatably connected to the two rotating wheels.

[0010] As a further description of the above technical solution: the front and rear sides of the lifting cabin are respectively slidably connected with a rotating wheel, and the top of the moving plate is fixedly connected with a door panel.

[0011] As a further description of the above technical solution: springs are sleeved on the outside of each of the multiple damping rods, and the top ends of the multiple connecting plates are fixedly connected to the bottom end of the moving plate.

[0012] As a further description of the above technical solution: the two fixed blocks II are fixedly connected on opposite sides to the two damping rods I on opposite sides, and the top ends of the multiple fixed blocks II are fixedly connected to the bottom ends of the multiple connecting plates.

[0013] As a further description of the above technical solution: the inner walls of the two resistance rods on their adjacent sides are slidably connected to the outside of the first fixed block, and the inner walls of the two resistance rods on their distant sides are respectively slidably connected to the outside of the two second fixed blocks.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the moving plate drives the first damping rod to retract, and at the same time pulls the resistance rod to rotate around the first pivot. With the cooperation of the second damping rod and the spring, the rotation of the resistance rod generates reverse resistance. The resistance and the damping force of the first damping rod cooperate with each other to drive the moving plate to decelerate, thereby reducing the descent speed of the door panel and preventing damage to the connection between the door panel and the door frame due to excessive descent.

[0016] 2. In this utility model, when the moving block is pushed downward by the push rod, the first connecting column drives the connecting rod to rotate around the first connecting shaft. The connecting rod, through the third connecting shaft, the second connecting column, and the fourth connecting shaft, drives the support bar to rotate around the second connecting shaft and unfold outward, thereby achieving the effect of unfolding the support bar to provide auxiliary support and improve the overall stability of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an auxiliary lifting device for installing a security door, as proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the lifting chamber of an auxiliary lifting device for installing a security door, as proposed in this utility model.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the support rod for an auxiliary lifting device for installing a security door, as proposed in this utility model.

[0021] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0022] Legend:

[0023] 1. Lifting chamber; 2. Power column; 3. Moving plate; 4. Damping rod one; 5. Support column; 6. Fixed block one; 7. Rotating shaft one; 8. Resistance rod; 9. Rotating shaft two; 10. Fixed block two; 11. Connecting plate; 12. Fixed column; 13. Damping rod two; 14. Spring; 15. Support rod; 16. Push rod; 17. Moving block; 18. Connecting column one; 19. Connecting shaft one; 20. Connecting rod; 21. Connecting shaft two; 22. Support bar; 23. Connecting shaft three; 24. Connecting column two; 25. Connecting shaft four; 26. Rotating wheel one; 27. Rotating wheel two; 28. Door panel. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1 to 3 This utility model provides an embodiment of an auxiliary lifting device for installing security doors, comprising a lifting chamber 1. Multiple power columns 2 are fixedly connected to the inner wall of the bottom end of the lifting chamber 1. During operation, the power columns 2 can precisely adjust their extension and retraction lengths according to control commands, providing stable lifting power to a movable plate 3, ensuring that the movable plate 3 can accurately reach the predetermined position during the lifting process, meeting different work requirements. The movable plate 3 is fixedly connected to the top of the multiple power columns 2. Driven by the power columns 2, the movable plate 3 can achieve smooth lifting and lowering movements, transporting the load to a designated height. It is a key component for the entire lifting system to achieve vertical transportation functionality.

[0026] Multiple damping rods 4 are fixedly connected to the inner wall of the bottom end of the lifting chamber 1. When the moving plate 3 rises or falls, the damping rods 4 can absorb and dissipate the energy generated by inertia, vibration, etc., through the damping effect of the internal medium, thus slowing down the change in the lifting speed of the moving plate 3 and avoiding violent shaking or impact. Multiple support columns 5 are fixedly connected to the inner wall of the bottom end of the lifting chamber 1. The support columns 5 are evenly distributed at the bottom of the lifting chamber 1, providing basic support for the entire lifting system and evenly distributing the moving plate 3 and its weight to the ground or foundation structure. Fixed blocks 6 are fixedly connected to the top of the multiple support columns 5, which can provide stable rotational support for the rotating shaft 7, ensuring that the rotating shaft 7 maintains a precise axial position during rotation, so that subsequent components such as the resistance rod 8 can work stably.

[0027] Multiple fixed blocks 6 have rotating shafts 7 rotatably connected to their inner walls. Supported by the fixed blocks 6, these shafts can rotate flexibly and stably, converting the swinging motion of the resistance rods 8 into controllable mechanical actions. Resistance rods 8 are fixedly connected to the outside of two rotating shafts 7. When the moving plate 3 rises or falls, the resistance rods 8 generate resistance torque through swinging, working in conjunction with the damping rod 4 to further adjust the rising and falling speed and stability of the moving plate 3, making the moving plate 3 more stable during the rising and falling process. Rotating shafts 9 are fixedly connected to the opposite sides of the two resistance rods 8. The function of rotating shafts 9 is to transmit the swinging motion of the resistance rods 8 to subsequent components such as the fixed block 10. Their high-precision machining and assembly ensure the accuracy and reliability of the motion transmission.

[0028] Two rotating shafts 9 are each rotatably connected to a fixed block 10, providing another support point for the swing of the resistance rod 8, and also serving as a base for connecting other auxiliary components. Connecting plates 11 are fixedly connected to the tops of the two damping rods 4. The two damping rods 4 work together to synchronously absorb and dissipate the vibration energy generated during the lifting and lowering of the moving plate 3, making the lifting and lowering movement of the moving plate 3 smoother. Fixed columns 12 are fixedly connected to the outer sides of the two resistance rods 8 on adjacent sides, stably transmitting the force of the resistance rods 8 to the damping rod 13, forming an effective linkage mechanism between the components. Damping rod 13 is rotatably connected to the adjacent sides of the two fixed columns 12. The damping rod 13 generates damping force through rotation, further adjusting the swing amplitude and speed of the resistance rod 8. Working together with the damping rods 4, resistance rods 8, and other components, it achieves precise control of the lifting and lowering movement of the moving plate 3, improving the overall stability and operability of the system. A support assembly is fixedly connected to the right side of the lifting chamber 1 for support.

[0029] Reference Figures 3 to 5 The support assembly includes a support rod 15, the bottom left end of which is fixedly connected to the right side of the lifting chamber 1. The support rod 15 serves as an auxiliary support structure, firmly connected to the right side of the lifting chamber 1. This connection method makes the support rod 15 a lateral support point for the lifting chamber 1, capable of sharing the lateral forces and overturning moments experienced by the lifting chamber 1 during operation. Two push rods 16 are fixedly connected to the inner wall of the top end of the support rod 15. The push rods 16, by receiving control signals, can achieve precise telescopic movement, providing a power source for subsequent components such as the moving block 17, and their extension length can be adjusted according to actual needs. Moving blocks 17 are fixedly connected to the bottom ends of the two push rods 16 respectively. Driven by the push rods 16, the moving blocks 17 can move linearly in the vertical direction, converting the telescopic movement of the push rods 16 into displacement of components such as the connecting column 18.

[0030] Two movable blocks 17 are each fixedly connected to a connecting post 18 at their bottom ends. The function of the connecting post 18 is to transmit the linear motion of the movable block 17 to the connecting shaft 19, and at the same time provide a stable mounting base for the connecting shaft 19, ensuring that the connecting shaft 19 maintains accurate position during rotation. The connecting shaft 19 is rotatably connected inside each of the two connecting posts 18. The connecting shaft 19 serves as the rotation fulcrum of the connecting rod 20, converting the linear motion of the connecting post 18 into the rotational motion of the connecting rod 20, thus achieving a change in motion mode. Connecting rods 20 are fixedly connected to the outside of each of the two connecting shafts 19. After the connecting rods 20 are fixedly connected to the connecting shafts 19, they can rotate and swing around the connecting shafts 19, amplifying the rotational force of the connecting shafts 19 and transmitting it to the support bar 22, thereby adjusting the position and angle of the support bar 22.

[0031] Two connecting shafts 21 are rotatably connected to the inner wall of the bottom end of the support rod 15. The connecting shafts 21 provide a fulcrum for the support bar 22, allowing the support bar 22 to rotate around its axis to adapt to different support requirements. The support bar 22 is fixedly connected to the outer side of the two connecting shafts 21 on opposite sides. When it is necessary to enhance the stability of the lifting chamber 1, the support bar 22 can be rotated out to increase the support area and provide additional support force. When not in use, it can be rotated back to save space and improve the flexibility of the equipment.

[0032] Connecting shaft 23 is rotatably connected to the bottom ends of the two connecting rods 20 on opposite sides. Connecting shaft 23 acts as the fulcrum for the rotation of connecting column 24, transmitting the rotational and oscillating motion of the connecting rods 20 to the connecting column 24, thus further transmitting force and motion. Connecting column 24 is fixedly connected to the bottom ends of the two connecting shafts 23. Driven by connecting shafts 23, connecting column 24 can move up and down or adjust its angle, connecting connecting shafts 23 and 25, further transmitting motion and force downwards. Connecting shaft 25 is fixedly connected to the bottom ends of the two connecting columns 24.

[0033] Reference Figures 1 to 3 The two connecting shafts 25 are rotatably connected to the inner wall of the top of the support bar 22. The connecting shafts 25 can rotate with the movement of the connecting column 24, transmitting power to the support bar 22, allowing the support bar 22 to swing around the connecting shaft 21 as a fulcrum, thereby adjusting the support angle. The two support bars 22 are slidably connected to the inner walls of the front and rear sides of the support rod 15. When the push rod 16 extends or retracts, driving the moving block 17 and other components to move, the support bar 22 can slide accordingly, and in conjunction with its own swing, ensure effective support for the lifting chamber 1.

[0034] The two connecting rods 20 are externally slidably connected to the inner walls of the two support bars 22. While the connecting rods 20 rotate and swing under the drive of the connecting shaft 19, they can slide on the inner walls of the support bars 22. This design not only transmits the rotational force of the connecting rods 20 to the support bars 22, but also adjusts their relative positions through sliding, avoiding motion interference and effectively improving the working performance of the support mechanism. The two moving blocks 17 are externally slidably connected to the inner walls of the support rod 15. When the push rod 16 extends or retracts, the moving blocks 17 move linearly along the track on the inner wall of the support rod 15. This connection method provides precise motion guidance for the moving blocks 17, ensuring the accuracy of their motion trajectory and guaranteeing the stability of the power transmission of the entire support adjustment mechanism.

[0035] Two rotating wheels 27 are rotatably connected to the bottom ends of the two support bars 22 on opposite sides. Rotating wheels 26 are slidably connected to the front and rear exterior sides of the lifting chamber 1. During the movement of the lifting chamber 1, rotating wheels 26 can slide externally, providing auxiliary support and guidance. A door panel 28 is fixedly connected to the top of the moving plate 3. Multiple damping rods 13 are fitted with springs 14. When the damping rods 13 are subjected to external force and extend or swing, the springs 14 are correspondingly compressed or stretched, storing elastic potential energy. When the external force disappears, the springs 14 release energy to help the damping rods 13 return to their original position.

[0036] The top ends of multiple connecting plates 11 are fixedly connected to the bottom end of the movable plate 3. Through the connection of the connecting plates 11, the damping rod 4 can effectively reduce the speed change of the movable plate 3, absorb the impact force generated by inertia, etc., ensure the smooth lifting of the movable plate 3, and improve the safety and comfort of the lifting system. The far sides of two fixed blocks 10 are fixedly connected to the near sides of two damping rods 4. The fixed blocks 10 provide the mounting base for components such as the rotating shaft 9, and at the same time, they can assist in transmitting and dispersing the force when the damping rods 4 are working. The top ends of multiple fixed blocks 10 are fixedly connected to the bottom ends of multiple connecting plates 11. During the lifting process of the movable plate 3, it can ensure that the components work together, so that the damping force generated by the damping rods 4 can be accurately transmitted to the movable plate 3 through the connecting plates 11, thereby improving the overall performance of the lifting system.

[0037] The inner walls of the two resistance rods 8 on their adjacent sides are slidably connected to the outside of the fixed block 6. When the resistance rods 8 swing, they can slide outside the fixed block 6. This connection method provides guidance and limitation for the swing of the resistance rods 8, ensuring that the resistance rods 8 can swing stably around the pivot 7. The inner walls of the two resistance rods 8 on their distant sides are slidably connected to the outside of the two fixed blocks 10. The resistance rods 8 slide outside the fixed blocks 10 and can interact with the fixed blocks 10, damping rods 13, and other components during the swing, thereby more precisely controlling the lifting speed and stability of the moving plate 3.

[0038] Working principle: When installing door panel 28, it is necessary for door panel 28 to be connected with the door frame. When the moving plate 3 is driven to descend by the power column 2, the moving plate 3 drives the connecting plate 11 to compress the damping rod 4. At the same time, the resistance rod 8 is pulled around the rotating shaft 7 by the fixed block 10. During the rotation of the resistance rod 8, the fixed column 12 drives the damping rod 13 to extend and retract. The spring 14 is compressed and generates elastic resistance. The hydraulic damping of the damping rod 4 and the elastic resistance of the spring 14 work together to drive the moving plate 3 to decelerate through the connecting plate 11, thereby reducing the descent speed of door panel 28 and preventing damage to the connection between door panel 28 and door frame due to impact.

[0039] When the door panel 28 is installed, the extension and retraction of the push rod 16 drives the moving block 17 to slide linearly on the inner wall of the lifting chamber 1. The sliding of the moving block 17 drives the connecting rod 20 to move through the connecting column 18 and the connecting shaft 19. The movement of the connecting rod 20 then drives the support bar 22 to rotate around the connecting shaft 21 through the connecting shaft 3 23, the connecting column 24 and the connecting shaft 4 25. This causes the support bar 22 to slide on the inner walls of the front and rear sides of the support rod 15 and unfold to an angle for auxiliary support and stability. As the support bar 22 unfolds, the rotating wheel 27 at its bottom end rotates to adapt to the position change, thereby achieving the effect of auxiliary support and enhancing overall stability.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary lifting device for installing a security door, comprising a lifting chamber (1), characterized in that: Multiple power columns (2) are fixedly connected to the bottom inner wall of the lifting chamber (1), and a movable plate (3) is fixedly connected to the top of the multiple power columns (2). Multiple damping rods (4) are fixedly connected to the bottom inner wall of the lifting chamber (1). Multiple support columns (5) are fixedly connected to the bottom inner wall of the multiple lifting chambers (1). A fixing block (6) is fixedly connected to the top of each of the multiple support columns (5). A rotating shaft (7) is rotatably connected to the inner wall of each of the multiple fixing blocks (6). The outer sides of two rotating shafts (7) are fixedly connected to the outside of each of the two rotating shafts (7). A resistance rod (8) is connected to the two resistance rods (8). A rotating shaft (9) is fixedly connected to the far side of each of the two resistance rods (8). A fixing block (10) is rotatably connected to the outside of each of the two rotating shafts (9). A connecting plate (11) is fixedly connected to the top of each of the two damping rods (4). A fixing column (12) is fixedly connected to the outside of each of the two resistance rods (8). A damping rod (13) is rotatably connected to the near side of each of the two fixing columns (12). A support assembly for support is fixedly connected to the right side of the lifting chamber (1).

2. The auxiliary lifting device for installing a security door according to claim 1, characterized in that: The support assembly includes a support rod (15). The bottom left end of the support rod (15) is fixedly connected to the right side of the lifting chamber (1). Two push rods (16) are fixedly connected to the inner wall of the top end of the support rod (15). The bottom ends of the two push rods (16) are respectively fixedly connected to moving blocks (17). The bottom ends of the two moving blocks (17) are respectively fixedly connected to connecting columns (18). The interiors of the two connecting columns (18) are respectively rotatably connected to connecting shafts (19). The exteriors of the two connecting shafts (19) are... Each part is fixedly connected to a connecting rod (20). The bottom inner wall of the support rod (15) is rotatably connected to two connecting shafts (21). Support bars (22) are fixedly connected to the outer side of the two connecting shafts (21) on opposite sides. Connecting shafts (23) are rotatably connected to the inner side of the bottom of the two connecting rods (20) on opposite sides. Connecting columns (24) are fixedly connected to the bottom of the two connecting columns (24). Connecting shafts (25) are fixedly connected to the bottom of the two connecting columns (24).

3. The auxiliary lifting device for installing a security door according to claim 2, characterized in that: The two connecting shafts (25) are rotatably connected to the inner wall of the top of the support bar (22), and the two support bars (22) are slidably connected to the inner walls of the front and rear sides of the support rod (15).

4. The auxiliary lifting device for installing a security door according to claim 2, characterized in that: The two connecting rods (20) are externally slidably connected to the inner walls of the two support bars (22), the two moving blocks (17) are externally slidably connected to the inner walls of the support rods (15), and the bottom ends of the two support bars (22) on opposite sides are respectively rotatably connected to the two rotating wheels (27).

5. The auxiliary lifting device for installing a security door according to claim 1, characterized in that: The front and rear sides of the lifting chamber (1) are respectively slidably connected to a rotating wheel (26), and the top of the moving plate (3) is fixedly connected to a door panel (28).

6. The auxiliary lifting device for installing a security door according to claim 1, characterized in that: Each of the multiple damping rods (13) is fitted with a spring (14), and the top of each of the multiple connecting plates (11) is fixedly connected to the bottom of the movable plate (3).

7. The auxiliary lifting device for installing a security door according to claim 1, characterized in that: The two fixed blocks (10) are fixedly connected on opposite sides to the two damping rods (4) on opposite sides, and the top ends of the multiple fixed blocks (10) are fixedly connected to the bottom ends of the multiple connecting plates (11).

8. The auxiliary lifting device for installing a security door according to claim 1, characterized in that: The inner walls of the two resistance rods (8) on the adjacent side are slidably connected to the outside of the first fixed block (6), and the inner walls of the two resistance rods (8) on the distant side are respectively slidably connected to the outside of the two second fixed blocks (10).

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