Adjustable door lock linkage device of elevator fireproof hinged door

Abstract

The utility model discloses an adjustable door lock linkage device of an elevator fireproof hinged door, which comprises a door lock connecting component, a first screw rod and a first internal thread rod end joint bearing, one end of the door lock connecting component is connected with a mechanical door lock, the other end of the door lock connecting component is connected with the first screw rod, and the other end of the first screw rod is connected with a second internal thread rod end joint bearing; the first screw rod is connected with the first internal thread rod end joint bearing; the door lock connecting piece support is rotationally connected to the first rotating support, and one end of the door lock connecting piece support is connected with the first inner threaded rod end knuckle bearing; the middle connecting assembly comprises a second internal threaded rod end joint bearing, a third internal threaded rod end joint bearing and a second screw rod, and one end of the second internal threaded rod end joint bearing is connected with the door lock connecting piece support. Compared with the prior art, the door lock linkage mechanism can solve the problems that an existing door lock linkage mechanism is inconvenient to adjust, inflexible in action and prone to jamming in the installation process.

Description

Technical Field

[0001] This utility model relates to the field of marine elevator technology, and in particular to an adjustable fireproof hinged door lock linkage device for elevators. Background Technology

[0002] With the rapid development of China's economy, especially its marine economy, Chinese ships have been exported to more than 60 countries and regions, including the world's top nine shipping nations such as Greece, Norway, Germany, the United States, and the United Kingdom, sailing the oceans around the world, fully loaded with Chinese and global manufacturing products. As living standards steadily improve, seafarers' desire for a comfortable living environment is growing stronger, leading to a surge in demand for marine elevators on large and medium-sized vessels, indicating a promising market prospect.

[0003] Because marine elevators are installed not on fixed buildings but inside the hull of a moving ship, the working environment is harsh, including conditions such as rolling, pitching, heaving, water vapor, and salt spray. This places higher demands on the safety and reliability of elevator components. In particular, the elevator landing doors, as essential passageways for personnel, play a crucial role in the safe operation of the elevator. Conventional elevators have automatic landing and car doors, with opening and closing achieved by a mature linkage mechanism. Existing Chinese patent CN201721276365.2 discloses a door lock linkage mechanism for a fireproof hinged door of a marine elevator. However, the door lock linkage mechanism and intermediate connecting parts all use single-piece, fixed-length pin-connectors. During actual installation, due to limitations imposed by the on-site installation conditions, the linkage distance cannot be adjusted, and the pin joints are prone to uneven operation, causing the door lock linkage mechanism to become sluggish or even jammed, affecting door opening and potentially creating safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable door lock linkage device for fireproof elevator hinged doors, which solves the problems of inconvenient adjustment, inflexible operation, and easy jamming in the current door lock linkage mechanism.

[0005] To achieve the above objectives, this utility model provides an adjustable door lock linkage device for a fireproof elevator hinge door, comprising:

[0006] A door lock connection assembly includes a door lock connector, a first screw, and a first internal thread rod end joint bearing. One end of the door lock connector is connected to a mechanical door lock, and the other end of the door lock connector is connected to the first screw. The first screw is connected to the first internal thread rod end joint bearing.

[0007] A door lock connector bracket, wherein the door lock connector bracket is rotatably connected to a first rotating support, and one end of the door lock connector bracket is connected to a first internal thread rod end spherical bearing;

[0008] The intermediate connecting assembly includes a second internally threaded rod end spherical bearing, a third internally threaded rod end spherical bearing, and a second screw. One end of the second internally threaded rod end spherical bearing is connected to the door lock connector bracket, and the other end of the second internally threaded rod end spherical bearing is connected to the second screw. The second screw is connected to the third internally threaded rod end spherical bearing, and the third internally threaded rod end spherical bearing is connected to the second rotating support.

[0009] As a further description of the above technical solution:

[0010] The mechanical door lock is installed on the landing door.

[0011] As a further description of the above technical solution:

[0012] The door is provided with a fixed mounting base, and both the first rotating support and the second rotating support are connected to the fixed mounting base.

[0013] As a further description of the above technical solution:

[0014] The cross-section of the door lock connector bracket is L-shaped.

[0015] As a further description of the above technical solution:

[0016] The door lock connector is provided with a first adjusting screw hole, and one end of the first screw is screwed into the first adjusting screw hole.

[0017] As a further description of the above technical solution:

[0018] The third internal thread rod end spherical bearing is provided with a second adjusting screw hole, and one end of the second screw is screwed into the second adjusting screw hole.

[0019] In summary, due to the adoption of the above technical solutions, the beneficial effects of this utility model are as follows: By replacing the existing door lock connecting assembly with a door lock connector, a first screw, and a first internal thread rod end spherical bearing; and by replacing the existing intermediate connecting assembly with a second internal thread rod end spherical bearing, a third internal thread rod end spherical bearing, and a second screw, two additional internal thread rod end spherical bearing connections are added, providing excellent self-lubricating properties, corrosion resistance, wear resistance, and self-aligning characteristics, ensuring smooth operation of the mechanism even with installation or machining deviations; the first and second screws increase the on-site installation adjustment margin to adapt to different installation conditions, facilitating on-site installation and maintenance; and all other rotating parts are connected by pins, which has the advantage that the pins are not easily loosened, can withstand vibration and variable loads, and ensure that the landing door can be safely opened under ship swaying conditions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the door lock linkage device for an adjustable fireproof hinged elevator door.

[0022] Figure 2 This is a schematic diagram of the existing door lock linkage mechanism.

[0023] Legend:

[0024] 1. Door lock connector; 2. First screw; 3. First internal thread rod end spherical bearing; 4. Mechanical door lock; 5. Door lock connector bracket; 6. First rotating support; 7. Second internal thread rod end spherical bearing; 8. Third internal thread rod end spherical bearing; 9. Second screw; 10. Second rotating support; 11. Landing door; 12. Fixed mounting base; 13. First adjusting screw hole; 14. Second adjusting screw hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figure 1 This utility model provides an adjustable door lock linkage device for a fireproof hinged elevator door, which includes:

[0031] A door lock connection assembly includes a door lock connector 1, a first screw 2, and a first internal thread rod end joint bearing 3. One end of the door lock connector 1 is connected to a mechanical door lock 4, and the other end of the door lock connector 1 is connected to the first screw 2. The first screw 2 is connected to the first internal thread rod end joint bearing 3.

[0032] Door lock connector bracket 5, which is rotatably connected to the first rotating support 6, and one end of the door lock connector bracket 5 is connected to the first internal thread rod end spherical bearing 3;

[0033] The intermediate connecting assembly includes a second internal thread rod end spherical bearing 7, a third internal thread rod end spherical bearing 8, and a second screw 9. One end of the second internal thread rod end spherical bearing 7 is connected to the door lock connector bracket 5, and the other end of the second internal thread rod end spherical bearing 7 is connected to the second screw 9. The second screw 9 is connected to the third internal thread rod end spherical bearing 8, and the third internal thread rod end spherical bearing 8 is connected to the second rotating support 10.

[0034] The mechanical door lock 4 is installed on the landing door 11.

[0035] The door 11 is provided with a fixed mounting base 12, and the first rotating support 6 and the second rotating support 10 are both connected to the fixed mounting base 12.

[0036] The cross-section of the door lock connector bracket 5 is L-shaped.

[0037] The door lock connector 1 is provided with a first adjusting screw hole 13, and one end of the first screw 2 is screwed into the first adjusting screw hole 13. The first adjusting screw hole provides adjustment space.

[0038] The third internal thread rod end spherical bearing 8 is provided with a second adjusting screw hole 14, and one end of the second screw 9 is screwed into the second adjusting screw hole 14. The second adjusting screw hole can provide adjustment space.

[0039] Working principle: By modifying the existing door lock connecting assembly into a door lock connector, a first screw, and a first internal thread rod end spherical bearing; and modifying the existing intermediate connecting assembly into a second internal thread rod end spherical bearing, a third internal thread rod end spherical bearing, and a second screw, the improved door lock connector is connected to the mechanical door lock at one end via a pin, and the other end is tightened to one end of the first screw with two nuts. The other end of the first screw is connected to the first internal thread rod end spherical bearing. The second and third internal thread rod end spherical bearings are connected via the second screw and locked with nuts. One end of the L-shaped door lock connector bracket is the first internal thread rod end... The spherical plain bearings are connected by pins, and the second internal thread rod end spherical plain bearing is connected to the second rotating support. This increases the connection of two internal thread rod end spherical plain bearings, providing good self-lubricating properties, corrosion resistance, wear resistance, and self-aligning characteristics. It also ensures smooth operation of the mechanism even with installation or machining deviations. The first and second screws increase the on-site installation adjustment margin to adapt to different installation conditions and facilitate on-site installation and maintenance. All other rotating parts are connected by pins, which has the advantage that the pins are not easy to loosen, can withstand vibration and variable loads, and ensure that the landing door can be opened safely when the ship is rocking.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable door lock linkage device for a fireproof hinged elevator door, characterized in that, include: A door lock connection assembly includes a door lock connector, a first screw, and a first internal thread rod end joint bearing. One end of the door lock connector is connected to a mechanical door lock, and the other end of the door lock connector is connected to the first screw. The first screw is connected to the first internal thread rod end joint bearing. A door lock connector bracket, wherein the door lock connector bracket is rotatably connected to a first rotating support, and one end of the door lock connector bracket is connected to a first internal thread rod end spherical bearing; The intermediate connecting assembly includes a second internally threaded rod end spherical bearing, a third internally threaded rod end spherical bearing, and a second screw. One end of the second internally threaded rod end spherical bearing is connected to the door lock connector bracket, and the other end of the second internally threaded rod end spherical bearing is connected to the second screw. The second screw is connected to the third internally threaded rod end spherical bearing, and the third internally threaded rod end spherical bearing is connected to the second rotating support.

2. The adjustable fireproof hinged door lock linkage device for elevators according to claim 1, characterized in that, The mechanical door lock is installed on the landing door.

3. The adjustable fireproof hinged door lock linkage device for elevators according to claim 2, characterized in that, The door is provided with a fixed mounting base, and both the first rotating support and the second rotating support are connected to the fixed mounting base.

4. The adjustable fireproof hinged door lock linkage device for elevators according to claim 1, characterized in that, The cross-section of the door lock connector bracket is L-shaped.

5. The adjustable fireproof hinged door lock linkage device for elevators according to claim 1, characterized in that, The door lock connector is provided with a first adjusting screw hole, and one end of the first screw is screwed into the first adjusting screw hole.

6. The adjustable fireproof hinged door lock linkage device for an elevator according to claim 1, characterized in that, The third internal thread rod end spherical bearing is provided with a second adjusting screw hole, and one end of the second screw is screwed into the second adjusting screw hole.

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