Construction hoist outer cage door

Abstract

A construction hoist outer cage door, including outer cage door frame and outer cage door board, door lock assembly is equipped with on both sides of outer cage door board on outer cage door frame, the lower end both sides of outer cage door board is equipped with the impact block, the door lock assembly includes door lock hook, limit switch, upper door wheel and rope wheel, the door lock plate that is formed with door lock hook cooperation is equipped with on outer cage door board and forms locking, in locking state, door lock plate presses limit switch, the upper door wheel is cooperated with the side of outer cage door board, the protective cover that protects limit switch is equipped with on outer cage door frame, the protective cover includes limit installation plate and the protective plate that is equipped in limit installation plate top, limit switch is installed on limit installation plate.The utility model effectively protects limit switch;Door lock assembly simple structure, layout is reasonable, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of construction hoist technology, and in particular to an outer cage door for a construction hoist. Background Technology

[0002] Traditional construction hoist outer cage doors generally use mechanical door locks in conjunction with limit switches to achieve electrical interlocking, but there are two major drawbacks: the limit switches are installed in the open, making them susceptible to rainwater corrosion, dust accumulation, and external impacts, which can cause them to fail, leading to hoist malfunctions or safety interlock failures; the door lock components have a complex structure and the layout of the various components is unreasonable, posing a significant safety risk. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an outer cage door for a construction hoist that effectively protects the limit switch; it has a simple structure, reasonable layout, and is easy to use.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: an outer cage door for a construction hoist, including an outer cage door frame and an outer cage door panel. Door lock assemblies are provided on both sides of the outer cage door panel on the outer cage door frame. Collision blocks are provided on both sides of the lower end of the outer cage door panel. Each door lock assembly includes a door lock hook, a limit switch, an upper door wheel, and a rope wheel. A door lock plate is provided on the outer cage door panel to cooperate with the door lock hook to form a locking mechanism. In the locked state, the door lock plate presses against the limit switch. The upper door wheel cooperates with the side of the outer cage door panel. A protective cover is provided on the outer cage door frame to protect the limit switch. The protective cover includes a limit mounting plate and a protective plate on top of the limit mounting plate. The limit switch is mounted on the limit mounting plate. The principle of this invention is as follows: The outer cage door and the hoisting cage door cooperate to achieve intelligent opening of the outer cage door. When the hoisting cage is running in the lifting channel and not on the feeding platform, the outer cage door is closed, and the door lock hook locks the door lock plate, preventing the outer cage door from opening. At this time, the door lock plate presses the limit switch, and the limit switch does not activate. When the hoisting cage reaches the feeding platform, the contact iron on the hoisting cage touches the door lock hook, unlocking the door lock plate. The hoisting cage door motor drives the hoisting cage door to open upward. The ejector piece on the hoisting cage door disengages from the slot of the card seat and ejects outward. The hoisting cage door continues to move upward. At this time, the ejector piece touches the collision block on the outer cage door plate. The collision block drives the outer cage door plate to move upward until it reaches the open position. The upward movement of the outer cage door plate drives the door lock plate, and the door lock plate leaves the limit switch. The limit switch activates, and the hoisting cage cannot start. When the hoisting cage is on the feeding platform and the hoisting cage door and the outer cage door are closed, the door lock plate presses the limit switch, and the hoisting cage can start running.

[0005] As an improvement, the outer cage door frame includes two uprights, a connecting plate between the upper ends of the two uprights, and a bent plate between the lower ends of the two uprights, and the door lock assembly is located on the uprights.

[0006] As an improvement, the upper door wheel is pivotally connected to the upper door wheel mounting plate, which is welded to the column and the connecting plate; the rope wheel is pivotally connected to the rope wheel mounting plate, which is welded to the column and the upper door wheel mounting plate; the door lock hook is hinged to the door lock mounting plate, which is welded to the rope wheel mounting plate.

[0007] As an improvement, the bending plate is provided with a waist-shaped hole, and the bending plate is locked to the base frame of the concrete feeding platform by bolts.

[0008] As an improvement, the door lock hook includes a hinge portion, a hook-shaped portion provided at one end of the hinge portion, and a contact portion provided at the other end of the hinge portion.

[0009] The beneficial effects of this utility model compared with the prior art are:

[0010] The protective cover protects the limit switch, completely solving the problem of limit switch failure caused by rain and dust, significantly improving the reliability of electrical interlocking, and making it suitable for harsh construction environments; the mechanical lock and limit switch triggering are strictly linked, eliminating the risk of "false locking" and ensuring that the elevator only operates when the door is reliably closed; the modular design makes component disassembly and replacement easier, and the protective cover can be quickly opened to inspect the limit switch; the door lock component has a simple structure, reasonable layout, and is easy to use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the outer cage door.

[0012] Figure 2 for Figure 1 Enlarged view of point A.

[0013] Figure 3 This is a schematic diagram of the outer cage door frame.

[0014] Figure 4 for Figure 3 Enlarged view of point B.

[0015] Figure 5 This is a schematic diagram showing the coordination between the outer cage door and the feeding platform.

[0016] Figure 6 This is a schematic diagram of the hoisting cage.

[0017] Figure 7 for Figure 6 Enlarged view of point C. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figures 1 to 4As shown, a construction hoist outer cage door includes an outer cage door frame 1 and an outer cage door panel 2. The outer cage door frame 1 includes two uprights 11, a connecting plate 12 located between the upper ends of the two uprights 11, and a bent plate 13 located between the lower ends of the two uprights 11. The bent plate 13 adopts a plate bending structure and has three large waist-shaped holes 131 on it, which facilitates the installation of the outer cage door frame 1 and the base frame, and also reduces weight. The connecting plate 12 adopts a plate bending structure to increase rigidity, and a logo can be affixed to the connecting plate 12 to enhance identification. Door lock assemblies 3 are provided on both sides of the outer cage door panel 2 on the outer cage door frame 1. The door lock assemblies 3 are mounted on the column 11. The door lock assembly 3 includes a door lock hook 31, a limit switch 35, an upper door wheel 33, and a rope wheel 34. The upper end of the outer cage door panel 2 is provided with a door lock plate 32 that cooperates with the door lock hook 31 to form a lock. In the locked state, the door lock plate 32 presses against the limit switch 35. The upper door wheel 33 cooperates with the side of the outer cage door panel 2 and guides the outer cage door panel 2 to move up and down. The limit switch 35 is located inside a protective cover 351. The top of the protective cover 351 is flush with the outer cage door frame 1. The protective cover 351 includes a limit mounting plate and a protective plate on top of the limit mounting plate. The limit switch 35 is mounted on the limit mounting plate. The limit mounting plate is welded... The protective cover is attached to the column 11 to prevent the limit switch 35 from being wetted by rain or damaged by falling objects. The upper door wheel 33 is pivotally connected to the upper door wheel mounting plate 331, which is welded to the column 11 and the connecting plate 12 to increase stability. The rope wheel 34 is pivotally connected to the rope wheel mounting plate 341, which is welded to the column 11 and the upper door wheel mounting plate 331. The rope wheel mounting plate 341 adopts a C-shaped plate bending structure to protect the TMC material rope wheel without the need for a rope wheel cover. The door lock hook 31 is hinged to the door lock mounting plate 311, which is welded to the rope wheel mounting plate 341. The door lock hook 31 includes a hinge part, a hook-shaped part at one end of the hinge part, and a contact part at the other end of the hinge part. Collision blocks 4 are provided on both sides of the lower end of the outer cage door panel 2.

[0020] The principle of this utility model is as follows: Figures 5 to 7As shown, the outer cage door and the hoisting cage door 6 cooperate to achieve intelligent opening of the outer cage door. When the hoisting cage is running in the lifting channel and not on the feeding platform 5, the outer cage door is in the closed state, and the door lock hook 31 locks the door lock plate 32, preventing the outer cage door from opening. At this time, the door lock plate 32 presses the limit switch 35, and the limit switch 35 does not activate. When the hoisting cage reaches the feeding platform 5, the contact iron on the hoisting cage touches the door lock hook 31, unlocking the door lock plate 32. The hoisting cage door motor drives the hoisting cage door 6 to open upward, and the ejector piece 61 on the hoisting cage door 6 disengages. The cage door 6 continues to move upward after popping out from the slot of the card seat 62. At this time, the pop-out part 61 touches the collision block 4 on the outer cage door plate 2. The collision block 4 drives the outer cage door plate 2 to move upward until it reaches the open position. The upward movement of the outer cage door plate 2 drives the door lock plate 32. The door lock plate 32 leaves the limit switch 35, and the limit switch 35 is activated. At this time, the cage cannot start. When the cage is located on the feeding platform 5 and the cage door 6 and the outer cage door are closed, the door lock plate 32 presses the limit switch 35, and the cage can start running.

Claims

1. A construction hoist outer cage door, comprising an outer cage door frame and an outer cage door panel, wherein door lock assemblies are provided on both sides of the outer cage door frame and collision blocks are provided on both sides of the lower end of the outer cage door panel, characterized in that: The door lock assembly includes a door lock hook, a limit switch, an upper door wheel, and a rope wheel. The outer cage door panel is provided with a door lock plate that cooperates with the door lock hook to form a lock. In the locked state, the door lock plate presses against the limit switch. The upper door wheel cooperates with the side of the outer cage door panel. The outer cage door frame is provided with a protective cover to protect the limit switch. The protective cover includes a limit mounting plate and a protective plate on top of the limit mounting plate. The limit switch is mounted on the limit mounting plate.

2. The outer cage door of a construction hoist according to claim 1, characterized in that: The outer cage door frame includes two uprights, a connecting plate between the upper ends of the two uprights, and a bent plate between the lower ends of the two uprights. The door lock assembly is located on the uprights.

3. The outer cage door of a construction hoist according to claim 2, characterized in that: The upper door wheel is pivotally connected to the upper door wheel mounting plate, which is welded to the column and the connecting plate; the rope wheel is pivotally connected to the rope wheel mounting plate, which is welded to the column and the upper door wheel mounting plate; the door lock hook is hinged to the door lock mounting plate, which is welded to the rope wheel mounting plate.

4. The outer cage door of a construction hoist according to claim 2, characterized in that: The bending plate is provided with a waist-shaped hole, and the bending plate is locked to the base frame of the concrete feeding platform by bolts.

5. The outer cage door of a construction hoist according to claim 1, characterized in that: The door lock hook includes a hinge portion, a hook-shaped portion at one end of the hinge portion, and a contact portion at the other end of the hinge portion.

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