CN219469405U - Novel dead weight type door lock - Google Patents

Abstract

The utility model discloses a novel dead weight door lock, which comprises a bottom cage door vertical beam and a limiting iron bump arranged on a suspension cage; comprises a dead weight door lock main body and a door lock ear plate arranged on a bottom cage; the dead weight door lock main body is arranged on the door lock lug plate through a bearing; one end of the dead weight door lock main body is provided with a dead weight roller, and the other end of the dead weight door lock main body is provided with a lock rod; the gravity center G of the dead weight door lock main body is positioned on one side of the bearing. The utility model changes the force required for resetting from spring to gravity, thereby eliminating the potential safety hazard of elevator operation caused by spring failure.

Description

Novel dead weight type door lock

Technical Field

The utility model relates to a novel dead weight type door lock, and belongs to the technical field of tower crane bottom cage self-locking devices.

Background

The bottom cage door lock is a mechanical automatic interlocking device between the lifting cage and the bottom cage, and has the specific effects that when the lifting cage descends to the bottom, the bottom cage door lock is opened, and the bottom cage door can be freely opened and closed; when the elevator moves upwards, the lifting cage ascends, the bottom cage door lock is reset through the spring, and the bottom cage door is automatically locked, so that irrelevant personnel can be prevented from entering the bottom cage when the elevator moves. Therefore, bottom door locks are an important measure to ensure safe operation of the elevator.

As shown in fig. 1, when the existing bottom cage door is opened, the unlocking roller 11 on the door locking main body 10 is pressed by the limiting iron bump 30 installed on the hanging cage to press the spring 12, the front part of the door locking main body 10 is tilted, and the vertical beam 20 of the bottom cage door is not clamped, so that the bottom cage door is opened; when the door closing lock body 10 is closed, the lifting cage rises, the limiting striker 30 rises along with the lifting cage, the spring 12 resets, and the door closing lock body 10 clamps the bottom cage door to be closed. The key point of the door lock is that the spring is complex in construction site environment, the use frequency of the elevator door lock is high, the bottom cage is in a state of being completely exposed to the outside, wind and rain are sprayed, sunlight is exposed, the site working condition is complex, the use frequency is high, the failure of the 2.2mm thick spring on the bottom cage door lock is easily caused, the safety risk during the operation of the elevator is increased, and the safety accident of the elevator is increased.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a novel self-weight door lock, which is characterized in that the gravity center of the self-weight door lock main body is positioned at one side of the rotation center of the self-weight door lock main body through adjusting the gravity center of the self-weight door lock main body, so that the self-weight door lock main body is in a closed state or an open state.

The utility model is realized by the following technical scheme that the novel dead weight type door lock comprises a bottom cage door vertical beam and a limiting iron bump arranged on a hanging cage; comprises a dead weight door lock main body and a door lock ear plate arranged on a bottom cage;

the dead weight door lock main body is arranged on the door lock lug plate through a bearing;

one end of the dead weight door lock main body is provided with a dead weight roller, and the other end of the dead weight door lock main body is provided with a lock rod;

the gravity center G of the dead weight door lock main body is positioned on one side of the bearing.

As a preferable scheme of the novel dead weight type door lock, the utility model comprises the following steps: the bottom cage door vertical beam is provided with a self-locking hole matched with the lock rod.

As a preferable scheme of the novel dead weight type door lock, the utility model comprises the following steps: when the dead weight door lock main body is in a door opening state, the gravity center G of the dead weight door lock main body is positioned on a horizontal line passing through the center of the bearing.

As a preferable scheme of the novel dead weight type door lock, the utility model comprises the following steps: when the dead weight door lock main body is in a door locking state, the gravity center G of the dead weight door lock main body is positioned below a horizontal line passing through the center of the bearing.

As a preferable scheme of the novel dead weight type door lock, the utility model comprises the following steps: the included angle A between the connecting line passing through the gravity center G of the dead weight door lock main body and the center of the bearing and the horizontal line passing through the center of the bearing is 10.4 degrees.

The utility model has the beneficial effects that: the utility model changes the force required for resetting from spring to gravity, thereby eliminating the potential safety hazard of elevator operation caused by spring failure.

Drawings

FIG. 1 is a schematic diagram of a prior art bottom cage mechanical automatic interlock;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic view of the gravity position of the deadweight door lock body;

FIG. 4 is a practical schematic of the present utility model;

in the figure: 10-closing a door lock body; 11-unlocking the roller; 12-a spring; 20-bottom cage door vertical beams; 21-self-locking hole; 30-limiting the iron collision; 40-dead weight door lock main body; 41-dead weight roller; 42-door lock ear plate; 43-bearing; 44-locking bar.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Referring to fig. 1-4, as a first embodiment of the present utility model, a novel deadweight door lock is provided, comprising a bottom cage door vertical beam 20 and a limit striker 30 mounted on a cage; comprises a dead weight door lock main body 40 and a door lock ear plate 42 arranged on the bottom cage;

the dead weight door lock main body 40 is arranged on the door lock lug plate 42 through a bearing 43;

one end of the dead weight door lock main body 40 is provided with a dead weight roller 41, and the other end is provided with a lock rod 44;

the gravity center G of the deadweight door lock main body 40 is located on one side of the bearing 43.

The bottom cage door vertical beam 20 is provided with a self-locking hole 21 matched with the locking rod 44.

When the self-weight door lock main body 40 is in the door-open state, the gravity center G thereof is on a horizontal line passing through the center of the bearing 43.

When the self-weight door lock main body 40 is in a door locking state, the gravity center G thereof is positioned below the horizontal line passing through the center of the bearing 43.

The angle A between the line passing through the center of gravity G of the self-weight door lock main body 40 and the center of the bearing 43 and the horizontal line passing through the center of the bearing 43 is 10.4 degrees.

Specifically, the gravity center G of the self-weight door lock main body 40 is located at one side of the rotation center of the bearing, the rotation angle of the self-weight door lock main body 40 around the center of the bearing 43 between the door lock opening and closing is 10.4 °, when the suspension cage is lowered to the bottom, the limiting striker 30 contacts with the self-weight roller 41, the gradient of the limiting striker 30 is set to enable the self-weight roller 41 to move inwards, the lock rod 44 leaves the self-locking hole 21, and the bottom cage door can be opened;

when the cage is lifted, the limit striker 30 is lifted, and the gravity center G of the dead weight door lock main body 40 is positioned behind the rotation center of the bearing 43, the dead weight door lock main body 40 is automatically reset under the action of gravity, the lock rod 44 is inserted into the self-locking hole 21, and the bottom cage door is locked.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (5)

1. A novel dead weight door lock comprises a bottom cage door vertical beam (20) and a limiting striker (30) arranged on a suspension cage; the method is characterized in that: comprises a dead weight door lock main body (40) and a door lock lug plate (42) arranged on a bottom cage;

the dead weight door lock main body (40) is arranged on the door lock lug plate (42) through a bearing (43);

one end of the dead weight door lock main body (40) is provided with a dead weight roller (41), and the other end is provided with a lock rod (44);

the gravity center G of the dead weight door lock main body (40) is positioned on one side of the bearing (43).

2. The novel deadweight door lock of claim 1, wherein: the bottom cage door vertical beam (20) is provided with a self-locking hole (21) matched with the lock rod (44).

3. The novel deadweight door lock of claim 1, wherein: when the self-weight door lock main body (40) is in a door opening state, the gravity center G of the self-weight door lock main body is positioned on a horizontal line passing through the center of the bearing (43).

4. The novel deadweight door lock of claim 1, wherein: when the dead weight door lock main body (40) is in a door locking state, the gravity center G of the dead weight door lock main body is positioned below a horizontal line passing through the center of the bearing (43).

5. The novel deadweight door lock of claim 4, wherein: the included angle A between the connecting line passing through the gravity center G of the dead weight door lock main body (40) and the center of the bearing (43) and the horizontal line passing through the center of the bearing (43) is 10.4 degrees.