CN116332000A - A double protective door device for construction elevators and floor door openings - Google Patents

Abstract

The invention relates to the technical field of building construction safety protection, and particularly discloses a double-protection door device for a construction elevator and a floor door opening, which comprises a hanging cage, door posts, an auxiliary door post, a first protection door, a rotating shaft, a second protection door, a fixing plate and an operation window.

Description

A double protective door device for construction elevators and floor door openings

technical field

The invention relates to the technical field of building construction safety protection, in particular to a double protective door device for construction elevators and floor door openings.

Background technique

The construction site of a construction project is a high-incidence area of safety production accidents. As one of the five major injuries on the construction site, "falling from a height" has become the top priority of the current safety management work; the protective door of the construction elevator floor material delivery platform—— As one of the prominent points of "falling injury from height", its safety performance and method of use are reliable or not, directly related to human life, equipment and property safety.

Construction elevators carry out vertical transportation of materials and operators. In order to ensure safe construction, protective doors are installed at the entrances and exits of elevators and material delivery platforms on each floor. According to the form of protective doors currently used in most construction sites, floor protective doors cannot be automatically locked. Operators enter and leave the material transport platform at will, which has a high safety risk. In order to further ensure safety, prevent the elevator from starting to leave due to accidental touches and other reasons during the construction process, resulting in the construction personnel falling; or due to the uneven quality of the construction personnel. Qi, after the training, there is still the situation that the construction elevator cannot be closed in time. Now it is necessary to develop and design a double protective door device for the construction elevator and the floor door opening. In view of the above problems, technological innovation is carried out on the basis of the existing device.

Contents of the invention

The technical problem to be solved by the present invention is to provide a double protective door device for the construction elevator and the floor doorway, so as to prevent the elevator from starting and leaving due to accidental touch and other reasons, and the protective door is not closed in time, resulting in the construction personnel falling.

In order to solve the problems of the technologies described above, the technical scheme adopted in the present invention is as follows:

A double protective door device for a construction elevator and a floor door opening, including a hanging cage, a doorpost, an attached doorpost, a protective door, a rotating shaft, a protective door two, a fixing plate, and an operating window. The key technology of the elevator is: The cage is provided with protective door 1, the gate post is vertically set up outside the door opening, the attached door post is vertically set up inside the door opening, and the protective door 2 is movably installed on the right door post, and the protective door One is rotatably connected with the cage bottom plate of the elevator through the rotating shaft, the protective door is fixedly connected with the rotating shaft, and the protective door is provided with an operation window near the top side of the cage of the elevator.

Preferably, the first protective door is provided with bolt holes, and the ground of the floor is provided with bolt holes. The bolt holes are aligned, and the bolt holes on the protective door one are rotatably connected with fixing bolts.

Preferably, a chute matching the size of the rotating shaft is provided at the bottom plate of the elevator cage corresponding to the rotating shaft, and the depth of the chute is smaller than the distance from the bottom of the protective door to the operating window.

Preferably, the right end of the rotating shaft is rotationally connected with a motor, and the motor is controlled by a controller.

Preferably, a storage slot is provided at the position of the protective door 2 corresponding to the operation window, and a push rod is rotatably connected to the storage slot, and the push rod is stored in the storage slot.

Preferably, the push rod is L-shaped and rotates 180° counterclockwise.

Preferably, a handle is provided on the push rod.

Preferably, the second protective door is provided with an observation window.

Preferably, electromagnets are respectively provided on the left side of the left doorpost and the left side of the attached doorpost, and a permanent magnetic sensor is fixed on the left side of the left side of the left doorpost close to the cage of the elevator. The cage of the elevator is equipped with an induction block by means of a fixed plate, and the induction block is kept in the induction area of the permanent magnetic inductor when running vertically, and the signal output end of the permanent magnetic inductor is connected to the controller 2, and the electromagnetic induction block The iron is connected to the power supply through the electromagnetic relay.

Preferably, the second protective door is rotatably connected to the right doorpost through a spring hinge.

Compared with the prior art, the technical progress achieved by the present invention lies in:

The double protective door device for the construction elevator and the floor door opening of the present invention first opens the second protective door, then opens the first protective door, and makes the first protective door rotatably connected with the cage bottom plate of the elevator through the rotating shaft, and the first protective door is fixedly connected with the rotating shaft. Connect the protective door one to the hoisting cage of the elevator and the floor ground, and when the protective door two remains open, it can reduce the construction personnel's carelessness and cause the fall.

In the present invention, a chute is provided on the bottom plate of the cage of the elevator, and after the protective door is opened, the protective door is pushed into the chute, and then the protective door is fixed to the floor by fixing bolts, so that the lifting of the elevator due to accidental touches and other reasons can be reduced. The sudden departure of the cage caused construction workers to fall and similar accidents occurred.

The design of protective door 1 of the present invention is combined with the automatic locking of protective door 2 after the cage of the elevator leaves, which greatly increases the safety factor when construction personnel pass through the cage of the elevator and the doorway of the floor.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the structural representation of the open state of the double protective door in the embodiment of the present invention;

Fig. 2 is the upper view of the open state of the double protective door in the embodiment of the present invention;

Fig. 3 is the sectional view of D-D place in Fig. 2 of the present invention;

Fig. 4 is the partial view of II place of Fig. 3 of the present invention;

Fig. 5 is a schematic structural view of the closed state of the double protective door in the embodiment of the present invention;

Fig. 6 is the upper view of the closed state of the double protective door in the embodiment of the present invention;

Fig. 7 is a sectional view at C-C in Fig. 6 of the present invention.

In the figure: 1, hanging cage; 1-1, fixed plate; 1-2, induction block; 2, protective door 1; 2-1, operation window; 2-2, bolt hole; 2-3, fixing bolt; 3 , rotating shaft; 3-1, motor; 3-2, chute; 4, door post; 4-1, permanent magnetic sensor; 5, protective door two; 5-1 storage slot; 5-2, push rod; 5- 3. Handle; 5-4. Observation window; 6. Attached door post; 6-1. Electromagnet; 7. Floor ground; 8. Door opening.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1 and 5, a double protective door device for a construction elevator and a floor door opening 8, including a door post 4, an attached door post 6, a protective door 2, a rotating shaft 3, a protective door 2 5, and a fixed plate 1-1 , the operation window 2-1, the cage 1 of the elevator is provided with a protective door-2, and the protective door-2 is rotatably connected with the bottom plate of the cage 1 of the elevator through the rotating shaft 3, and the protective door-2 is connected with the rotating shaft 3 Fixedly connected, armrests are set on the protective door-2 to facilitate the opening and closing of the protective door-2, the right end of the rotating shaft 3 is connected to the small motor 3-1 in rotation, and the motor 3-1 is controlled by the controller-1 to make the protective door-1 2. Rotate slowly around the rotating shaft 3 to realize the stable opening and closing of the protective door 25. A pair of door posts 4 are set up on the two sides of the vertical floor ground 7 outside the door opening 8 of the corresponding floor where the cage 1 of the elevator stops. The right side vertical floor ground 7 is provided with attached door post 6, and described protection door two 5 is movably installed on the right side door post 4, and as shown in Figure 7, described protection door one 2 is near the cage 1 top side of elevator An operation window 2-1 is provided, and construction workers can push open the protective door 25 through the operation window 2-1 in the cage 1 of the elevator;

As a further preferred solution, the protective door 2 5 is installed on the right door post 4 by means of a spring hinge, and each door opening 8 is provided with a set of protective door 2 5, as shown in Figures 6 and 7, the left side On the door post 4 and on the left side of the attached door post 6, electromagnets 6-1 with the same number as the number of protective doors 5 are respectively fixed, and the number of electromagnets 6-1 that are vertically arranged on the left side door post 4 is the same as that of the protective door. The permanent magnet inductor 4-1, the cage 1 of the elevator is equipped with an induction block 1-2 by means of the fixed plate 1-1, and the vertical running track of the induction block 1-2 is located in the sensing area of the permanent magnet inductor 4-1; The signal output end of the magnetic inductor 4-1 is connected to the controller two, and each set of electromagnets 6-1 is connected to the power supply through a relay, and the signal output end of the second controller is connected to the electromagnetic relay control end. The controller two in the present invention can be arranged in layers, It can also be set uniformly, and can be selected according to specific conditions, as long as it can be realized that when the hanging cage 1 passes the permanent magnetic inductor 4-1, the corresponding electromagnet 6-1 can be energized and de-energized by controlling the electromagnetic relay;

As a further preferred solution, as shown in Figures 3 and 4, a storage slot 5-1 is provided at the position of the protective door 2 5 corresponding to the operation window 2-1, and a push rod is rotatably connected in the storage slot 5-1. 5-2, the push rod 5-2 is an L-shaped counterclockwise rotation of 180°, the push rod 5-2 is stored in the storage tank 5-1, and the construction personnel can first turn the protective door through the operation window 2-1 Two 5, the push rod 5-2 in the receiving groove 5-1 is parallel to the ground, handle 5-3 can be set on the push rod 5-2 to facilitate the rotation of the push rod 5-2, and then push the push rod 5-2 to The protective door 2 5 is pushed to the attached door post 6;

As a further preferred solution, an observation window 5-4 is provided on the protective door 25, and the observation window 5-4 is convenient for construction personnel to observe the operation of the cage 1 of the outside elevator in the floor, and make accurate judgments to prevent accidents from happening ;

As a further preferred solution, open the protective door-2 and turn it to be flush with the floor ground 7, as shown in Figures 2, 3, and 6, set the bolt holes 2-2 on the protective door-2 and the corresponding floor ground 7, so that The bolt hole 2-2 on the protective door-2 is rotatably connected with a fixed bolt 2-3, and the fixed bolt 2-3 is rotated into the bolt hole 2-2 on the floor ground 7, so that the protective door-2 can be fixed. On the floor ground 7, avoid the sudden departure of the hoisting cage 1 of the elevator due to accidental touch and other reasons, causing construction workers to fall and cause accidents;

As a further preferred solution, as shown in Figure 3, the bottom plate of the elevator cage 1 corresponding to the rotating shaft 3 is provided with a chute 3-2 that matches the size of the rotating shaft 3, and the depth of the chute 3-2 is the same as that of the cage 1. Half of the depth of the bottom plate, open the protective door 1 and turn it to be flush with the floor ground 7, push the protective door 1 into the chute 3-2, and then fix it with the fixing bolt 2-3, and increase the height of the elevator through the protective door 1 2 The thickness of the connection between the hanging cage 1 and the floor ground 7 plays a better role in reinforcement;

The working process of the present invention is as follows: a kind of construction hoist provided by the present invention and floor door opening 8 use double protective door device, when hanging cage 1 moves, permanent magnetic inductor 4-1 is in normally open state, and electromagnet is placed on the left door post 4 The normally closed point of the electromagnetic relay corresponding to 6-1 is closed, the circuit of protective door 25 is connected, and the electromagnet 6-1 on the left doorpost 4 is energized, so that the protective door 25 is in a long-term locked state, and the cage 1 arrives. After the preset floor stops, the induction block 1-2 senses with the permanent magnetic sensor 4-1 of the corresponding floor, the electromagnetic relay normally closed point corresponding to the electromagnet 6-1 on the left door post 4 is disconnected, and the protective door 2 5 circuit Unreasonable, the electromagnet 6-1 on the left door post 4 loses power, because a spring hinge is installed between the protective door two 5 and the left door post 4, the protective door two 5 is still close to the left door post 4, in The protective door 2 5 can only be opened under the push of the construction personnel; meanwhile, the normally open point of the electromagnetic relay corresponding to the electromagnet 6-1 on the attached door post 6 is sucked in, and the attached door post 6 circuit is connected, and the attached post electromagnet 6-1 is Electricity, the construction worker pulls the handle 5-3 through the operation window 2-1, so that the push rod 5-2 is rotated to be parallel to the floor ground 7, and then pushes the handle 5-3 to drive the protective door to the 6 places of the attached door post, and the attached door post The electromagnet 6-1 on the 6 attracts the protective door 2 5, so that the protective door 2 5 is in a long-term open state;

The construction personnel operate the controller to make the motor 3-1 drive the protective door 12 to open, slowly rotate until it is flush with the floor 7, push the protective door 12 into the chute 3-2, and then fix the protective door 2 with the fixing bolt 2-3. Door 1 2 is connected to the floor ground 7, and the protective door 1 2 is open for a long time, which is convenient for construction personnel to pass through many times, and because the protective door 1 2 is connected to the hoisting cage 1 of the elevator and the floor ground 7, the occurrence of falling accidents can be reduced;

Construction workers remove the fixing bolts 2-3 on the protective door 1, pull the protective door 2 out of the chute 3-2, then enter the cage 1 of the elevator, and operate the controller 1 to make the motor 3-1 drive the protective door One 2 is closed, and it is slowly rotated to be perpendicular to the floor ground 7, and the protective door 1 2 is in a closed state;

The hanging cage 1 continues to run, and after the induction block 1-2 leaves the induction area of the permanent magnet inductor 4-1, the normally open point of the electromagnetic relay corresponding to the electromagnet 6-1 on the attached doorpost 6 is disconnected, and the circuit of the attached doorpost 6 is disconnected , the attached door post 6 electromagnet 6-1 loses power, and the protective door 2 automatically moves to the left door post 4 and closes under the action of the spring hinge. At the same time, the electromagnetic relay corresponding to the door post 4 electromagnet 6-1 The normally closed point is closed, the protective door 25 circuit is connected, the electromagnet 6-1 on the left door post 4 is energized, and the protective door 25 is self-locked; thereby realizing the automatic locking and automatic opening functions of the protective door 25 On the other hand, the permanent magnet inductor 4-1 among the present invention and the electromagnet 6-1 can be provided with power supply separately, when construction hoist does not move, guarantees that all protective doors are in locked state.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a construction elevator and floor door opening are with dual guard gate device, includes cage, gatepost, attaches gatepost, guard gate one, pivot, guard gate two, fixed plate, operation window, its characterized in that: the lifting cage of the lifter is provided with a first protective door, the door post is vertically arranged on the outer side of the door opening, the auxiliary door post is vertically arranged in the door opening, the second protective door is movably arranged on the right door post, the first protective door is rotationally connected with the lifting cage bottom plate of the lifter through a rotating shaft, the first protective door is fixedly connected with the rotating shaft, and one side of the top of the lifting cage, close to the lifter, of the first protective door is provided with an operation window.

2. A double guard door apparatus for a construction hoist and a floor door opening according to claim 1, characterized in that: the first protective door is provided with a bolt hole, the floor surface is provided with a bolt hole, when the protective door rotates to be parallel to the floor surface in the inner side direction of a door opening, the first protective door is aligned with the floor surface, and the first protective door is connected with a fixing bolt in a rotating mode.

3. A double guard door apparatus for a construction hoist and a floor door opening according to claim 1, characterized in that: the lifting cage bottom plate of the lifter is provided with a chute matched with the size of the rotating shaft at the position corresponding to the rotating shaft, and the depth of the chute is smaller than the distance from the bottom of the protective door to the operation window.

4. A double guard door apparatus for a construction hoist and a floor door opening according to claim 1, characterized in that: the right end of the rotating shaft is rotationally connected with a motor, and the motor is controlled by a first controller.

5. A double guard door apparatus for a construction hoist and a floor door opening according to claim 1, characterized in that: the second position of the protective door corresponding to the operation window is provided with a storage groove, the push rod is rotationally connected in the storage groove, and the push rod is stored in the storage groove.

6. The double guard door apparatus for a construction hoist and a floor door opening according to claim 5, wherein: the push rod is L-shaped and rotates 180 degrees anticlockwise.

7. The double guard door apparatus for a construction hoist and a floor door opening according to claim 5, wherein: the push rod is provided with a handle.

8. A double guard gate arrangement for a construction hoist and a floor opening according to claim 1, characterized in that: and an observation window is arranged on the second protective door.

9. A double guard door apparatus for a construction hoist and a floor door opening according to claim 1, characterized in that: the electromagnetic type elevator door is characterized in that electromagnets are respectively arranged on the left door post and the left side face of the auxiliary door post, a permanent magnet inductor is fixedly arranged on one side of the left side door post, which is close to the left side face of a lifting cage of the elevator, an induction block is arranged on the lifting cage of the elevator by means of a fixing plate, the induction block is kept in an induction area of the permanent magnet inductor during vertical operation, a second controller is connected to a signal output end of the permanent magnet inductor, and the electromagnets are connected with a power supply through an electromagnetic relay.

10. A double guard door apparatus for a construction hoist and a floor door opening according to claim 1, characterized in that: the protective door is rotatably connected to the right door post through a spring hinge.

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