Side-hung type floor door structure of construction hoist

Abstract

The utility model provides a building hoist side-hung type floor door structure which comprises a door frame, two floor doors, an electric push rod, a mechanical self-locking door hook, a push rod notch support, a sliding pin shaft, a door hook clamping plate and a push rod fixing support, the number of the floor doors is two, the floor doors are installed in the door frame in a bilateral symmetry mode, and the floor doors freely rotate in the door frame through door shafts. The door hook clamping plate is fixed to the top of a door frame, the push rod notch support is installed on a floor door, the mechanical self-locking door hook is installed on the push rod notch support, one end of the mechanical self-locking door hook is clamped on the door hook clamping plate, and the sliding pin shaft is installed on the push rod notch support in a sliding mode. According to the utility model, the installation is convenient, the floor door, the door frame and all accessories are pre-assembled in a factory, only the door frame needs to be fixed in the practical engineering use process, only the fixing parts of the door frame need to be taken down in the disassembly process, and meanwhile, each floor door structure has high interchangeability and is convenient to replace and maintain.

Description

Technical Field

[0001] The utility model relates to the field of construction elevators, in particular to a flat-opening floor door structure of a construction elevator. Background Art

[0002] In today's construction industry, with the shortage of professional human resources and the increasing labor costs, intelligent control technology has become an important technical development direction for construction elevators in the future. The key to intelligent construction elevators is the safety and reliability of floor door control and the structure of the floor door itself, so the requirements for the floor doors of intelligent construction elevators are getting higher and higher.

[0003] Some existing intelligent construction elevators still require manual operation by passengers. Sometimes, although the door is automatically opened and closed by the main electronic control system of the floor door, there are disadvantages such as inconvenient installation and maintenance, high cost, easy damage during loading and unloading, and no mechanical self-locking after the floor door is closed.

[0004] Although some intelligent construction elevators have a mechanical self-locking function after the floor doors are closed, they do not have an electrical self-locking function, and there is no signal feedback to the host. There is no function to detect whether the door is closed or whether it can operate. There are problems such as accidental door opening, cargo being trapped, door machine being damaged, and door not being closed. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In order to solve the above problems in the prior art, the utility model provides a flat-opening floor door structure for a construction elevator.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] A flat-opening floor door structure for a construction elevator comprises a door frame, a floor door, an electric push rod, a mechanical self-locking door hook, a push rod notch bracket, a sliding pin shaft, a door hook clamp plate and a push rod fixing bracket;

[0010] The floor door is provided with two leaves, which are installed in the door frame in a left-right symmetrical manner, and the floor door is freely rotatable in the door frame through the door shaft;

[0011] The door hook clamp is fixed on the top of the door frame;

[0012] The push rod notch bracket is installed on the floor door;

[0013] The mechanical self-locking door hook is installed on the push rod notch bracket, and one end of the mechanical self-locking door hook is clamped on the door hook clamping plate;

[0014] The sliding pin is slidably mounted on the push rod notch bracket. When the sliding pin slides, the connection between the mechanical self-locking door hook and the door hook clamping plate can be released. The sliding pin is rotatably connected to one end of the electric push rod.

[0015] The other end of the electric push rod is rotatably connected to the push rod fixing bracket;

[0016] The push rod fixing bracket is fixed on the door frame.

[0017] Preferably, the mechanical self-locking door hook includes a hook body, a front hook and a wedge block, the front hook and the wedge block are respectively installed at the front and rear ends of the hook body, the front hook is used to connect the door hook card plate, an axial hole is opened on the hook body, and the hook body is rotatably installed on the push rod slot bracket through the axial hole; when the wedge block contacts the sliding pin shaft, the front hook disengages from the door hook card plate.

[0018] Preferably, the push rod slot bracket includes a base plate and a mounting seat, the cross-section of the base plate is an L-shaped structure, the vertical portion of the base plate is fixedly connected to the surface of the floor door, one end of the horizontal portion of the base plate is bent upward, and a slot is provided in the bent portion of the base plate, the sliding pin is slidably installed in the slot, the mounting seat is installed on the surface of the horizontal portion of the base plate, the hook body is rotatably installed on the mounting seat through the shaft hole, and the wedge block at the tail of the hook body is located in the bent portion of the base plate, and when the sliding pin moves to the terminal end of the slot, it contacts the wedge block.

[0019] Preferably, it further comprises a limit switch and a limit top plate; the limit switch and the limit top plate are respectively installed on the two floor doors, and when the two floor doors are in a closed state, the limit switch is connected to the limit top plate.

[0020] Preferably, it also includes a door stop guard plate, which is fixed in the door frame to limit the floor door from being pushed outward and opened.

[0021] (III) Beneficial effects

[0022] The beneficial effects of the utility model are:

[0023] 1. The utility model is easy to install. The floor door, door frame and accessories are pre-assembled in the factory. When used in actual projects, it is only necessary to fix the door frame. When disassembling, it is only necessary to remove the fixings of the door frame. At the same time, each floor door structure is highly interchangeable, which is convenient for replacement and maintenance;

[0024] 2. The utility model can conveniently realize the opening and closing of the floor door by setting an electric push rod through the control host of the intelligent elevator. The electric push rod is used to replace the door machine, which is cheap, easy to maintain and has significant economic benefits;

[0025] 3. The utility model is provided with a mechanical self-locking door hook, which can prevent the floor door from being opened by mistake by workers or abnormally opened due to strong wind when the intelligent elevator is running up and down normally, thereby forcing the intelligent elevator to stop, ensuring the overall safety. At the same time, the mechanical self-locking door hook is pushed by the electric push rod to unhook and open before the door is opened. When the door is closed, it can be reset by its own structural gravity. It is simple to assemble, easy to use, and economical and reasonable.

[0026] 4. The utility model realizes closed-loop control by setting a limit switch. When the door is closed, the limit switch is energized and the energization signal is fed back to the intelligent elevator control host. This can eliminate the problems such as the door not closing normally or not closing properly due to damage to the electric push rod, damage to the floor door itself, failure to reset the mechanical self-locking door hook, foreign objects being caught when the door is closed, etc., thereby ensuring the overall safety and reliability of the intelligent elevator during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a flat-opening floor door structure for a construction elevator;

[0028] Figure 2 for Figure 1 A partial enlarged schematic diagram of

[0029] Figure 3 A schematic diagram of the structure for installing a door stop guard plate on a door frame;

[0030] Figure 4 It is a structural schematic diagram of a mechanical self-locking door hook;

[0031] Figure 5 It is a schematic diagram of the structure of the push rod slot bracket.

[0032] Description of reference numerals:

[0033] 1. Door frame;

[0034] 2. Floor door;

[0035] 3. Electric push rod;

[0036] 4. Mechanical self-locking door hook;

[0037] 401, front hook; 402, hook body; 403, wedge block;

[0038] 5. Push rod notch bracket;

[0039] 501, bottom plate; 502, mounting seat; 503, notch;

[0040] 6. Limit switch;

[0041] 7. Limit top plate;

[0042] 8. Door hook card;

[0043] 9. Sliding pin;

[0044] 10. Push rod fixing bracket;

[0045] 11. Door stop guard. DETAILED DESCRIPTION

[0046] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0047] Please refer to Figures 1 to 5 The utility model provides a construction elevator flat-opening floor door 2 structure, including a door frame 1, a floor door 2, an electric push rod 3, a mechanical self-locking door hook 4, a push rod notch bracket 5, a sliding pin shaft 9, a door hook card plate 8 and a push rod fixing bracket 10;

[0048] The floor door 2 has two leaves, which are installed in the door frame 1 in a bilaterally symmetrical manner, and the floor door 2 can rotate freely in the door frame 1 through the door shaft;

[0049] The door hook plate 8 is fixed on the top of the door frame 1;

[0050] The push rod notch bracket 5 is installed on the floor door 2;

[0051] The mechanical self-locking door hook 4 is installed on the push rod notch bracket 5, and one end of the mechanical self-locking door hook 4 is clamped on the door hook clamping plate 8;

[0052] The sliding pin shaft 9 is slidably mounted on the push rod notch bracket 5. When the sliding pin shaft 9 slides, the connection between the mechanical self-locking door hook 4 and the door hook clamping plate 8 can be released, and the sliding pin shaft 9 is rotatably connected to one end of the electric push rod 3;

[0053] The other end of the electric push rod 3 is rotatably connected to the push rod fixing bracket 10;

[0054] The push rod fixing bracket 10 is fixed on the door frame 1;

[0055] In this embodiment, the mechanical self-locking door hook 4 includes a hook body 402, a front hook 401 and a wedge block 403. The front hook 401 and the wedge block 403 are respectively installed at the front and rear ends of the hook body 402. The front hook 401 is used to connect the door hook card plate 8. An axial hole is opened on the hook body 402, and it is rotatably installed on the push rod slot bracket 5 through the axial hole; when the wedge block 403 contacts the sliding pin shaft 9, the front hook 401 is separated from the door hook card plate 8.

[0056] In this embodiment, the push rod slot bracket 5 includes a bottom plate 501 and a mounting seat 502. The cross section of the bottom plate 501 is an L-shaped structure. The vertical portion of the bottom plate 501 is fixedly connected to the surface of the floor door 2. One end of the horizontal portion of the bottom plate 501 is bent upward. The bent portion of the bottom plate 501 is provided with a slot 503. The sliding pin shaft 9 is slidably installed in the slot 503. The mounting seat 502 is installed on the surface of the horizontal portion of the bottom plate 501. The hook body 402 is rotatably installed on the mounting seat 502 through the shaft hole. The wedge block 403 at the tail of the hook body 402 is located in the bent portion of the bottom plate 501. When the sliding pin shaft 9 moves to the terminal end of the slot, it contacts the wedge block 403.

[0057] When the floor door 2 is in the closed state, the front hook 401 of the mechanical self-locking door hook 4 hooks on the door hook card plate 8 to ensure that the floor door 2 cannot be opened. After receiving the opening signal, the electric push rod 3 of this floor door is energized, and the sliding pin shaft 9 is guided by the notch 503. The sliding pin shaft 9 collides with the wedge block 403 at the mechanical self-locking door hook 4, so that the mechanical self-locking door hook 4 rotates about the rotating shaft hole of the mechanical self-locking door hook 4, and the front hook 401 of the mechanical self-locking door hook 4 is unhooked from the door hook card plate 8 to realize the opening action of the floor door 2. After receiving the closing signal, the electric push rod 3 of this floor door is energized, and the pushing end is retracted. At this time, the sliding pin shaft 9 is guided by the notch 503 and moves in the retraction direction of the electric push rod 3 at the notch 503, and the wedge block 403 is disengaged from the sliding pin shaft 9. The mechanical self-locking door hook 4 relies on its own gravity structure to rotate and reset about the rotating shaft hole of the mechanical self-locking door hook 4, thereby realizing the closing of the floor door 2.

[0058] In this embodiment, a limit switch 6 and a limit top plate 7 are also included; the limit switch 6 and the limit top plate 7 are respectively installed on the two floor doors 2, and when the two floor doors 2 are in a closed state, the limit switch 6 is connected to the limit top plate 7. When the floor doors 2 on both sides are closed, the ejection end of the limit switch 6 presses against the limit top plate 7. At this time, the limit switch 6 is energized and feeds back a signal to the intelligent elevator control host to realize closed-loop control. When the intelligent elevator starts to move up and down, it can detect that the two doors are kept in a closed state at the same time.

[0059] In the present embodiment, it also includes a door stop guard plate 11, which is fixed in the door frame 1 to limit the floor door 2 from being pushed out and opened. When the far end of the door axis of the floor door 2 is close to the door frame 1, the front hook 401 of the mechanical self-locking door hook 4 touches the door hook card plate 8, and the front hook 401 of the mechanical self-locking door hook 4 is affected by the door hook card plate 8 and rotates upward. When the floor door 2 is closed, the door stop guard plate 11 protects the floor door 2 from rotating in the opposite direction. At the same time, the mechanical self-locking door hook 4 relies on its own gravity structure to rotate and reset with the rotating shaft hole of the mechanical self-locking door hook 4. The front hook 401 of the mechanical self-locking door hook 4 clamps the door hook card plate 8 to ensure that when the intelligent elevator is operating up and down normally, the floor door 2 will not be opened abnormally and force the intelligent elevator to stop, thereby ensuring the safety and effectiveness of the construction operation.

[0060] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0061] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0062] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flat-opening floor door structure for a construction elevator. It is characterized in that It includes door frame, floor door, electric push rod, mechanical self-locking door hook, push rod notch bracket, sliding pin shaft, door hook card plate and push rod fixing bracket; The floor door is provided with two leaves, which are installed in the door frame in a left-right symmetrical manner, and the floor door is freely rotatable in the door frame through the door shaft; The door hook clamp is fixed on the top of the door frame; The push rod notch bracket is installed on the floor door; The mechanical self-locking door hook is installed on the push rod notch bracket, and one end of the mechanical self-locking door hook is clamped on the door hook clamping plate; The sliding pin is slidably mounted on the push rod notch bracket. When the sliding pin slides, the connection between the mechanical self-locking door hook and the door hook clamping plate can be released. The sliding pin is rotatably connected to one end of the electric push rod. The other end of the electric push rod is rotatably connected to the push rod fixing bracket; The push rod fixing bracket is fixed on the door frame.

2. A construction elevator flat-opening floor door structure according to claim 1, It is characterized in that The mechanical self-locking door hook includes a hook body, a front hook and a wedge block, wherein the front hook and the wedge block are respectively installed at the front and rear ends of the hook body, and the front hook is used to connect the door hook card plate. An axial hole is opened on the hook body, and the hook body is rotatably installed on the push rod slot bracket through the axial hole; when the wedge block contacts the sliding pin shaft, the front hook is separated from the door hook card plate.

3. A construction elevator flat-opening floor door structure according to claim 2, It is characterized in that The push rod slot bracket includes a base plate and a mounting seat. The cross-section of the base plate is an L-shaped structure. The vertical part of the base plate is fixedly connected to the surface of the floor door. One end of the horizontal part of the base plate is bent upward. The bent part of the base plate is provided with a slot. The sliding pin is slidably installed in the slot. The mounting seat is installed on the surface of the horizontal part of the base plate. The hook body is rotatably installed on the mounting seat through the shaft hole, and the wedge block at the tail of the hook body is located in the bent part of the base plate. When the sliding pin moves to the terminal end of the slot, it contacts the wedge block.

4. The flat-opening floor door structure for a construction elevator according to claim 1, It is characterized in that It also includes a limit switch and a limit top plate; the limit switch and the limit top plate are respectively installed on the two floor doors, and when the two floor doors are in a closed state, the limit switch is connected to the limit top plate.

5. The flat-opening floor door structure for a construction elevator according to claim 1, It is characterized in that It also includes a door stop guard plate, which is fixed in the door frame to limit the floor door from being pushed outward and opened.

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