A load-carrying cage for construction

Abstract

The present invention discloses a load-carrying cage for construction, which relates to the technical field of construction, and comprises a box body, a hanger is fixedly installed on the top of the box body, a conveying device is arranged inside the box body, a fixing device is arranged inside the box body, an anti-sway device is arranged on the top of the box body, and the conveying device comprises a sliding plate, a handle, a connecting rod, a slide rail, a load-carrying plate, a pulley, a fixed plate and a clamping rod, two of the fixed plates are fixedly installed on the top of the inner wall of the box body, the clamping rod is slidably installed between the two fixed plates, and the movement of the sliding plate drives the connecting rod to start moving, the movement of the connecting rod pulls the load-carrying plate to slide on the slide rail, and the load-carrying plate slides outward to reduce the time of manual handling, improve loading efficiency, prevent accidental injuries when manual handling of heavy objects occurs, and improve the safety of the construction site.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a load-carrying cage for building construction. Background Art

[0002] The load cage used in construction is an important construction auxiliary equipment, which can effectively improve the construction efficiency and safety. It provides a convenient material transportation solution for construction workers in high altitude and complex environments.

[0003] The patent with the patent announcement number CN104098019A relates to the field of construction technology. The patent relates to a cargo cage for construction, including a cage body surrounded by side walls, a lifting rope fixed or hooked on the upper side of the cage body, and a cage bottom plate at the lower end. The two opposite sides of the cage body are movably mounted on the other side wall through a rotating shaft and a rotating drum. The cargo cage for construction of this patent is very convenient to use. Since the side walls are movably installed, almost no loading time is wasted during the busy transportation process. The side walls are easy to buckle with the bottom plate, and the operation is simple. A reinforced flange is provided at the lower end of the side wall, which not only makes the movable side plate easy to close, but also makes the side and the bottom plate very firm. The structure is simple and novel, the safety is strong, the operation is simple, and it is very conducive to promotion and implementation.

[0004] In the above patent, the two opposite sides of the cage body are movably installed on the other side wall through the cooperation of the rotating shaft and the rotating drum, which is very convenient to use. Since the side walls are movably installed, the cage body cannot be fixed and self-locked during operation, which may cause excessive shaking of the objects and cause the objects to fall from the cage, thereby causing danger. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cargo hoisting cage for construction, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A load-carrying cage for construction includes a box body, a hanger is fixedly installed on the top of the box body, a conveying device is arranged inside the box body, a fixing device is arranged inside the box body, and an anti-shaking device is arranged on the top of the box body;

[0007] Among them, the conveying device includes a sliding plate, a handle, a connecting rod, a slide rail, a loading plate, a pulley, two fixed plates and a clamping rod. The sliding plate is slidably installed on the left side of the box, the handle is fixedly installed on the left side of the sliding plate, the slide rail is fixedly installed on the inner wall of the box, the loading plate is slidably installed on the top of the slide rail, the pulley is rotatably installed on the bottom of the loading plate, one end of the connecting rod is rotatably installed on the right side of the sliding plate, and the other end of the connecting rod is rotatably installed on the top of the loading plate, the two fixed plates are fixedly installed on the top of the inner wall of the box, and the clamping rod is slidably installed between the two fixed plates. The handle is lifted upward to cause the sliding plate to start moving upward under the lifting of the handle, the movement of the sliding plate drives the connecting rod to start moving, and the movement of the connecting rod pulls the loading plate to slide on the slide rail.

[0008] According to the above technical solution, the pulley is in contact with the slide rail, a slot is provided at the front of the sliding plate, the top of the clamping rod is set to an inclined surface, and a spring is provided between the clamping rod and the box body. The contact between the pulley and the slide rail ensures that the pulley can slide on the slide rail, the slot is provided to ensure that the clamping rod can limit the sliding plate, the inclined surface is provided to ensure that the clamping rod can be pushed by the sliding plate, and the spring is provided to ensure that the clamping rod can be reset in time.

[0009] According to the above technical solution, the fixing device includes a sliding rod, a push plate, a push block and a guard plate. The sliding rod slides through the box body, the push plate is fixedly installed on the back of the sliding rod, the push block is fixedly installed on the top of the loading plate, and the guard plate is fixedly installed on the end of the sliding rod away from the push plate. When the loading plate slides on the slide rail, it will drive the push block to start moving, and the movement of the push block drives the push plate to start moving. The movement of the push plate pushes the objects above the loading plate so that the objects are located in the center of the loading plate.

[0010] According to the above technical scheme, the fixing device also includes hydraulic cylinder 1, hydraulic cylinder 1 push plate, hydraulic cylinder 1 push rod, hydraulic cylinder 2, hydraulic cylinder 2 push plate and hydraulic cylinder 2 push rod. The hydraulic cylinder 1 is fixedly installed on the front part of the box body, the hydraulic cylinder 1 push plate is slidably installed on the inner wall of the hydraulic cylinder 1, the hydraulic cylinder 1 push rod is fixedly installed on the front part of the hydraulic cylinder 1 push plate, the hydraulic cylinder 2 is fixedly installed on the bottom of the inner wall of the box body, the hydraulic cylinder 2 push plate is slidably installed on the inner wall of the hydraulic cylinder 2, and the hydraulic cylinder 2 push rod is fixedly installed on the top of the hydraulic cylinder 2 push plate. The guard plate pushes the hydraulic cylinder 1 push rod to start moving, the hydraulic cylinder 1 push rod moves to push the hydraulic cylinder 1 push plate to start moving, and the hydraulic cylinder 1 push plate moves to squeeze the liquid inside the hydraulic cylinder 1.

[0011] According to the above technical solution, a pushing groove is provided at the bottom of the push plate, the contact surface of the push block and the push plate is set as an inclined surface, the inside of the hydraulic cylinder 1 and the hydraulic cylinder 2 are both filled with liquid, the hydraulic cylinder 1 is connected with the hydraulic cylinder 2 through a hydraulic pipe, and a spring 2 is provided between the push plate and the inner wall of the box body. By providing the pushing groove, it is ensured that the push block can continuously push the push plate to move when it moves, and by setting the inclined surface, it is ensured that the push block can ensure smoothness when pushing, and by setting the spring 2, it is ensured that the push plate can be reset in time.

[0012] According to the above technical solution, the anti-sway device includes a support plate, an elastic telescopic rod, a pressure plate, an inclined plane block 1 and an inclined plane block 2. The support plate is fixedly mounted on the top of the box body, the elastic telescopic rod is fixedly mounted on the top of the support plate, the pressure plate is fixedly mounted on the movable end of the elastic telescopic rod, the inclined plane block 1 is fixedly mounted on the front of the push plate, and the inclined plane block 2 is fixedly mounted on the top of the pressure plate. When the push plate moves, it drives the inclined plane block 1 to move. The movement of the inclined plane block 1 pushes the inclined plane block 2 to start moving. The movement of the inclined plane block 2 drives the pressure plate to move downward.

[0013] According to the above technical solution, the anti-sway device also includes a U-shaped rod and a fixed ring. The U-shaped rod is fixedly installed on the top of the pressure plate, and the fixed ring is fixedly installed on the top of the U-shaped rod. When the pressure plate moves, the U-shaped rod is driven to move, and the movement of the U-shaped rod drives the fixed ring to move. The movement of the fixed ring clamps the hook.

[0014] According to the above technical solution, the inclined plane block 1 is in contact with the inclined plane block 2, and the side where the inclined plane block 1 and the inclined plane block 2 contact each other is set as an inclined plane. The contact between the inclined plane block 1 and the inclined plane block 2 ensures that the inclined plane block 1 can push the inclined plane block 2 to move when it moves, and the setting of the inclined plane ensures that the inclined plane block 1 can better push the inclined plane block 2 when it moves.

[0015] The present invention provides a cargo hoisting cage for construction, which has the following beneficial effects:

[0016] (1) The invention starts to move the connecting rod by moving the sliding plate, and the movement of the connecting rod pulls the loading plate to slide on the slide rail. The loading plate slides outward to reduce the time of manual handling, improve loading efficiency, prevent accidental injuries when manually carrying heavy objects, and improve the safety of the construction site. The locking rod is reset and locked into the locking groove opened at the front of the sliding plate to limit the movement of the column sliding plate, ensuring that the sliding plate will not move excessively when the cage is working to prevent danger, thereby improving safety during work and preventing the sliding plate from moving excessively during work, causing objects to fall from the cage and causing danger.

[0017] (2) This invention pushes the articles on the loading plate to the center of the loading plate by moving the push plate, thereby ensuring that the center of gravity of the cage can be kept balanced during operation, reducing the tilt or instability caused by the center of gravity shift, reducing the risk of overturning or swaying, and preventing dangers caused by the center of gravity shift during operation. The push plate is driven to move by the movement of the slide bar, and the movement of the push plate fixes the articles inside the cage, ensuring that the articles can be effectively fixed, preventing the articles from losing balance and falling in the event of a collision, thereby protecting the safety of surrounding workers and equipment. The second push rod of the hydraulic cylinder moves to press against the loading plate, ensuring that the swing of the articles in the cage is reduced in the event of a collision, thereby improving the stability of the transportation process and reducing the possibility of damage to the articles.

[0018] (3) The invention drives the pressure plate downward by moving the second inclined block. The movement of the pressure plate fixes the items inside the cage to ensure that the items will not overturn due to collision, thereby improving the safety of the overall operation process. The movement of the U-shaped rod drives the fixing ring to start moving. The fixing ring moves to clamp the hook to ensure that the cage will shake freely on the hook in the event of a collision, causing a safety accident such as the product falling off, thereby preventing the cage from shaking freely and causing a secondary collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic cross-sectional view of the structure of the conveying device of the present invention;

[0021] Figure 3 It is a cross-sectional schematic diagram of the fixing plate and the clamping rod structure of the present invention;

[0022] Figure 4 It is a cross-sectional schematic diagram of the sliding plate and connecting rod structure of the present invention;

[0023] Figure 5 It is a schematic cross-sectional view of the fixing device structure of the present invention;

[0024] Figure 6 It is a schematic cross-sectional view of the structure of the anti-shake device of the present invention;

[0025] Figure 7 For the present invention Figure 5 A schematic diagram of the enlarged structure of part A.

[0026] In the figure: 1, box body; 2, hanger; 301, sliding plate; 302, handle; 303, connecting rod; 304, slide rail; 305, loading plate; 306, pulley; 307, fixed plate; 308, clamping rod; 401, sliding rod; 402, push plate; 403, push block; 404, guard plate; 405, hydraulic cylinder one; 406, hydraulic cylinder one push plate; 407, hydraulic cylinder one push rod; 408, hydraulic cylinder two; 409, hydraulic cylinder two push plate; 410, hydraulic cylinder two push rod; 501, support plate; 502, elastic telescopic rod; 503, pressure plate; 504, inclined surface block one; 505, inclined surface block two; 506, U-shaped rod; 507, fixing ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 7 , one embodiment of the present invention is: a load-carrying cage for construction, comprising a box body 1, a hanger 2 is fixedly installed on the top of the box body 1, and a conveying device is arranged inside the box body 1;

[0029] The conveying device includes a sliding plate 301, a handle 302, a connecting rod 303, a slide rail 304, a loading plate 305, a pulley 306, two fixed plates 307 and a clamping rod 308. The sliding plate 301 is slidably mounted on the left side of the box body 1, the handle 302 is fixedly mounted on the left side of the sliding plate 301, the slide rail 304 is fixedly mounted on the inner wall of the box body 1, the loading plate 305 is slidably mounted on the top of the slide rail 304, the pulley 306 is rotatably mounted on the bottom of the loading plate 305, and one end of the connecting rod 303 is rotatably mounted on the right side of the sliding plate 301. On the other side, the other end of the connecting rod 303 is rotatably installed on the top of the loading plate 305, the two fixed plates 307 are fixedly installed on the top of the inner wall of the box body 1, and the clamping rod 308 is slidably installed between the two fixed plates 307. The movement of the sliding plate 301 drives the connecting rod 303 to start moving. The movement of the connecting rod 303 pulls the loading plate 305 to slide on the slide rail 304. The loading plate 305 slides outward to reduce the time of manual handling, improve loading efficiency, prevent accidental injuries when manually carrying heavy objects, and improve the safety of the construction site.

[0030] The pulley 306 is in contact with the slide rail 304, a slot is provided at the front of the sliding plate 301, the top of the lever 308 is set as an inclined surface, and a spring 1 is provided between the lever 308 and the box body 1. The pulley 306 is in contact with the slide rail 304 to ensure that the pulley 306 can slide on the slide rail 304, the slot is provided to ensure that the lever 308 can limit the sliding plate 301, the inclined surface is provided to ensure that the lever 308 can be pushed by the sliding plate 301, and the spring 1 is provided to ensure that the lever 308 can be reset in time.

[0031] When the present embodiment is working, firstly, the handle 302 is grasped and lifted upwards so that the sliding plate 301 starts to move upwards under the lifting of the handle 302. The movement of the sliding plate 301 drives the connecting rod 303 to start to move. The movement of the connecting rod 303 pulls the loading plate 305 to slide on the slide rail 304. The loading plate 305 slides outwards to reduce the time of manual handling, improve the loading efficiency, prevent accidental injuries when manually carrying heavy objects, and improve the safety of the construction site. When the objects are loaded, the handle 302 is pulled downwards so that the sliding plate 301 starts to move upwards. 01 starts to move downward under the pull of handle 302, and the sliding plate 301 moves downward to push the locking rod 308 to start moving. The locking rod 308 moves and then starts to reset under the action of spring 1. The locking rod 308 resets and gets stuck in the slot opened at the front of the sliding plate 301, limiting the movement of the sliding plate 301 to ensure that the sliding plate 301 does not move excessively when the cage is working to prevent danger, improve safety during work, and prevent the sliding plate 301 from moving excessively during work, causing objects to fall from the cage and cause danger.

[0032] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a fixing device is arranged inside the box body 1, and an anti-shake device is arranged on the top of the box body 1, the fixing device comprises a slide bar 401, a push plate 402, a push block 403 and a guard plate 404, the slide bar 401 slides through the box body 1, the push plate 402 is fixedly mounted on the back of the slide bar 401, the push block 403 is fixedly mounted on the top of the loading plate 305, and the guard plate 404 is fixedly mounted on the end of the slide bar 401 away from the push plate 402, and the objects above the loading plate 305 are pushed by moving the push plate 402 so that the objects are located at the center of the loading plate 305, ensuring that the center of gravity of the cage can be kept balanced during work, reducing the tilt or instability caused by the center of gravity shift, reducing the risk of overturning or swaying, and preventing danger caused by the center of gravity shift during work.

[0033] The fixing device also includes hydraulic cylinder 1 405, hydraulic cylinder 1 push plate 406, hydraulic cylinder 1 push rod 407, hydraulic cylinder 2 408, hydraulic cylinder 2 push plate 409 and hydraulic cylinder 2 push rod 410. Hydraulic cylinder 1 405 is fixedly installed at the front of the box 1, hydraulic cylinder 1 push plate 406 is slidably installed on the inner wall of hydraulic cylinder 1 405, hydraulic cylinder 1 push rod 407 is fixedly installed at the front of hydraulic cylinder 1 push plate 406, hydraulic cylinder 2 408 is fixedly installed at the bottom of the inner wall of the box 1, hydraulic cylinder 2 push plate 409 is slidably installed on the inner wall of hydraulic cylinder 2 408, and hydraulic cylinder 2 push rod 410 is fixedly installed on the top of hydraulic cylinder 2 push plate 409. The hydraulic cylinder 2 push rod 410 moves to resist the loading plate 305 to ensure that the swing of the objects in the cage is reduced in the event of a collision, thereby improving the stability of the transportation process and reducing the possibility of damage to the objects.

[0034] A pushing groove is provided at the bottom of the push plate 402, and the contact surface of the push block 403 and the push plate 402 is set as an inclined surface. The inside of the hydraulic cylinder 1 405 and the hydraulic cylinder 2 408 are filled with liquid. The hydraulic cylinder 1 405 is connected with the hydraulic cylinder 2 408 through a hydraulic pipe. A spring 2 is provided between the push plate 402 and the inner wall of the box body 1. By providing a pushing groove, it is ensured that the push block 403 can continuously push the push plate 402 to move when moving. By setting the inclined surface, it is ensured that the push block 403 can ensure smoothness when pushing. By setting the spring 2, it is ensured that the push plate 402 can be reset in time.

[0035] The anti-sway device includes a support plate 501, an elastic telescopic rod 502, a pressure plate 503, an inclined plane block 1 504 and an inclined plane block 2 505. The support plate 501 is fixedly installed on the top of the box body 1, the elastic telescopic rod 502 is fixedly installed on the top of the support plate 501, the pressure plate 503 is fixedly installed on the movable end of the elastic telescopic rod 502, the inclined plane block 1 504 is fixedly installed on the front of the push plate 402, and the inclined plane block 2 505 is fixedly installed on the top of the pressure plate 503. The movement of the inclined plane block 2 505 drives the pressure plate 503 to move downward. The movement of the pressure plate 503 fixes the objects inside the cage to ensure that the objects will not overturn due to collision, thereby improving the safety of the overall operation process.

[0036] The anti-sway device also includes a U-shaped rod 506 and a fixed ring 507. The U-shaped rod 506 is fixedly installed on the top of the pressure plate 503, and the fixed ring 507 is fixedly installed on the top of the U-shaped rod 506. The movement of the U-shaped rod 506 drives the fixed ring 507 to start moving. The movement of the fixed ring 507 clamps the hook to ensure that the cage can shake freely on the hook in the event of a collision, causing a safety accident caused by the product falling, and preventing the cage from shaking freely and causing a secondary collision.

[0037] Inclined surface block 1 504 is in contact with inclined surface block 2 505, and the contacting surface of inclined surface block 1 504 and inclined surface block 2 505 is set as an inclined surface. The contact between inclined surface block 1 504 and inclined surface block 2 505 ensures that inclined surface block 1 504 can push inclined surface block 2 505 to move when moving, and the setting of the inclined surface ensures that inclined surface block 1 504 can better push inclined surface block 2 505 when moving.

[0038] When the embodiment is working: when the loading plate 305 slides on the slide rail 304, the push block 403 will be driven to start moving, and the push block 403 will move to push the push plate 402 to start moving, and the push plate 402 will move to push the objects above the loading plate 305 so that the objects are located at the center of the loading plate 305, ensuring that the center of gravity of the cage can be kept balanced during work, reducing the tilt or instability caused by the center of gravity shift, reducing the risk of overturning or swaying, and preventing danger during work due to the center of gravity shift. When the cage collides with foreign objects during work, the guard plate 404 moves backward, and the movement of the guard plate 404 drives the slide bar 401 to start moving, and the movement of the slide bar 401 drives the push plate 402 to start moving, and the push plate 402 moves to fix the objects inside the cage, ensuring that the objects can be effectively It is fixed to prevent objects from falling due to loss of balance when encountering a collision, thereby protecting the safety of surrounding workers and equipment. At the same time, the guard plate 404 pushes the hydraulic cylinder's push rod 407 to start moving, and the hydraulic cylinder's push rod 407 moves to push the hydraulic cylinder's push plate 406 to start moving. The hydraulic cylinder's push plate 406 moves to squeeze the liquid inside the hydraulic cylinder 1 405, and the liquid enters the hydraulic cylinder 2 408 through the hydraulic pipe. After the liquid enters the hydraulic cylinder 2 408, it squeezes and pushes the hydraulic cylinder's push plate 409, so that the hydraulic cylinder's push plate 409 drives the hydraulic cylinder's push rod 410 to start moving. The hydraulic cylinder's push rod 410 moves to resist the loading plate 305 to ensure that the swing of objects in the cage is reduced in the event of a collision, thereby improving the stability of the transportation process and reducing the possibility of damage to objects.

[0039] When the push plate 402 moves, it drives the inclined plane block 1 504 to start moving, and the movement of the inclined plane block 1 504 drives the inclined plane block 2 505 to start moving. The movement of the inclined plane block 2 505 drives the pressure plate 503 to move downward. The pressure plate 503 moves to fix the objects inside the cage to ensure that the objects will not overturn due to collision, thereby improving the safety of the overall operation process. At the same time, when the pressure plate 503 moves, it drives the U-shaped rod 506 to start moving. The movement of the U-shaped rod 506 drives the fixing ring 507 to start moving. The fixing ring 507 moves to clamp the hook to ensure that the cage will shake freely on the hook during a collision, causing a safety accident caused by the product falling, thereby preventing the cage from shaking freely and causing a secondary collision.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A load-carrying cage for construction, comprising a box body (1), characterized in that: A hanger (2) is fixedly mounted on the top of the box (1), a conveying device is arranged inside the box (1), a fixing device is arranged inside the box (1), and an anti-shaking device is arranged on the top of the box (1); The conveying device comprises a sliding plate (301), a handle (302), a connecting rod (303), a slide rail (304), a loading plate (305), a pulley (306), two fixed plates (307) and a clamping rod (308); the sliding plate (301) is slidably mounted on the left side of the box (1); the handle (302) is fixedly mounted on the left side of the sliding plate (301); the slide rail (304) is fixedly mounted on the inner wall of the box (1); the loading plate (305) is slidably mounted on the top of the slide rail (304); the pulley (306) is rotatably mounted on the bottom of the loading plate (305); one end of the connecting rod (303) is rotatably mounted on the right side of the sliding plate (301); the other end of the connecting rod (303) is rotatably mounted on the top of the loading plate (305); the two fixed plates (307) are fixedly mounted on the top of the inner wall of the box (1); and the clamping rod (308) is slidably mounted between the two fixed plates (307); The fixing device comprises a slide bar (401), a push plate (402), a push block (403) and a guard plate (404); the slide bar (401) slides through the box body (1); the push plate (402) is fixedly mounted on the back of the slide bar (401); the push block (403) is fixedly mounted on the top of the loading plate (305); and the guard plate (404) is fixedly mounted on an end of the slide bar (401) away from the push plate (402); The anti-sway device comprises a support plate (501), an elastic telescopic rod (502), a pressing plate (503), a first inclined plane block (504) and a second inclined plane block (505), wherein the support plate (501) is fixedly mounted on the top of the box body (1), the elastic telescopic rod (502) is fixedly mounted on the top of the support plate (501), the pressing plate (503) is fixedly mounted on the movable end of the elastic telescopic rod (502), the first inclined plane block (504) is fixedly mounted on the front of the push plate (402), and the second inclined plane block (505) is fixedly mounted on the top of the pressing plate (503); The anti-sway device further comprises a U-shaped rod (506) and a fixing ring (507), wherein the U-shaped rod (506) is fixedly mounted on the top of the pressing plate (503), and the fixing ring (507) is fixedly mounted on the top of the U-shaped rod (506); The inclined plane block 1 (504) and the inclined plane block 2 (505) are in contact, and the surface where the inclined plane block 1 (504) and the inclined plane block 2 (505) contact each other is set as an inclined plane.

2. A load-carrying cage for construction according to claim 1, characterized in that: The pulley (306) is in contact with the slide rail (304), a slot is provided at the front of the sliding plate (301), the top of the clamping rod (308) is arranged as an inclined surface, and a spring 1 is provided between the clamping rod (308) and the box body (1).

3. A load-carrying cage for construction according to claim 1, characterized in that: The fixing device also includes hydraulic cylinder 1 (405), hydraulic cylinder 1 push plate (406), hydraulic cylinder 1 push rod (407), hydraulic cylinder 2 (408), hydraulic cylinder 2 push plate (409) and hydraulic cylinder 2 push rod (410), wherein hydraulic cylinder 1 (405) is fixedly mounted on the front of the box body (1), the hydraulic cylinder 1 push plate (406) is slidably mounted on the inner wall of hydraulic cylinder 1 (405), the hydraulic cylinder 1 push rod (407) is fixedly mounted on the front of the hydraulic cylinder 1 push plate (406), the hydraulic cylinder 2 (408) is fixedly mounted on the bottom of the inner wall of the box body (1), the hydraulic cylinder 2 push plate (409) is slidably mounted on the inner wall of hydraulic cylinder 2 (408), and the hydraulic cylinder 2 push rod (410) is fixedly mounted on the top of the hydraulic cylinder 2 push plate (409).

4. A load-carrying cage for construction according to claim 3, characterized in that: A pushing groove is provided at the bottom of the push plate (402); the contact surface of the push block (403) and the push plate (402) is set as an inclined surface; the interiors of the hydraulic cylinder 1 (405) and the hydraulic cylinder 2 (408) are both filled with liquid; the hydraulic cylinder 1 (405) is connected to the hydraulic cylinder 2 (408) through a hydraulic pipe; and a spring 2 is provided between the push plate (402) and the inner wall of the box body (1).

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