Bin gate safety device for crane

Abstract

The utility model relates to the technical field of cranes, and discloses a bin gate safety device for a crane, which comprises a mounting bottom plate, a safety guardrail is fixedly mounted on the right side of the top of the mounting bottom plate, and a crane cab is fixedly mounted on the left side of the top of the mounting bottom plate. A rubber buffer pad in a safety buffer assembly on the crane safety bin door assembly can make contact with the inner wall of a crane cab, the rubber buffer pad drives a movable block to move backwards along a movable groove through a mounting plate, the movable block drives a limiting movable plate to move backwards along a limiting groove, and the limiting movable plate extrudes a metal elastic piece to deform for buffering; therefore, the purpose of buffering and protecting the bin gate of the crane is achieved, the situation that the bin gate is damaged when a worker opens and closes the bin gate with excessive force is avoided, the service life of the bin gate of the crane is prolonged, and the safety protection performance of the bin gate of the whole crane is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a cabin door safety device for cranes. Background Art

[0002] A crane refers to a multi-action lifting machinery that vertically lifts and horizontally moves heavy objects within a certain range. It is also called an overhead crane, overhead crane, or crane. The working characteristic of a crane is intermittent movement, that is, the corresponding mechanisms of actions such as material collection, transportation, and unloading work alternately in one working cycle. As a result, the development and use of cranes in the market are becoming more and more extensive.

[0003] Existing crane doors are opened or closed by door handles and door locks, and do not have a buffer device when opening or closing the door. If the staff uses too much force when opening or closing the door, the door may be damaged, which reduces the service life of the crane door and reduces the safety protection performance of the entire crane door.

[0004] Therefore, we propose a crane door safety device. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a crane door safety device.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a crane door safety device, comprising a mounting base, a safety guardrail is fixedly installed on the top right side of the mounting base, a crane cab is fixedly installed on the top left side of the mounting base, a crane safety door assembly is provided at the front end of the inner wall of the crane cab, the crane safety door assembly includes a crane door, and the crane door is movably connected to the front end of the inner wall of the crane cab through a hinge, a safety buffer assembly is provided at the rear end of the left wall of the crane door, the safety buffer assembly includes a mounting seat, and the right side wall of the mounting seat is fixedly connected to the rear end of the left wall of the crane door, a limiting groove is provided at the top middle end of the mounting seat, a movable groove is provided at the front end of the limiting groove at the top of the mounting seat, and a compression spring is fixedly installed at the limiting groove at the rear end of the inner wall of the mounting seat.

[0007] Preferably, a metal spring is fixedly mounted on the front of the compression spring, and the back of the metal spring is movably connected to the rear end of the inner wall of the mounting seat at a limiting groove.

[0008] Preferably, a limiting movable plate is movably mounted on the inner wall of the mounting seat at the limiting groove.

[0009] Preferably, the back surface of the limiting movable plate is movably connected to the front surface of the metal spring.

[0010] Preferably, a movable block is fixedly mounted on the front side of the position-limiting movable plate.

[0011] Preferably, the outer wall of the movable block is movably connected to the inner wall of the mounting seat at the movable groove.

[0012] Preferably, a mounting plate is fixedly mounted on the front side of the movable block.

[0013] Preferably, a rubber buffer pad is fixedly mounted on the front side of the mounting plate.

[0014] Preferably, the front surface of the rubber buffer pad is in active contact with the inner wall of the crane cab.

[0015] Beneficial effects

[0016] The utility model provides a crane door safety device, which has the following beneficial effects:

[0017] (1) The crane door safety device is provided with a crane door safety assembly. When the door is closed, the rubber buffer pad in the safety buffer assembly on the crane door safety assembly contacts the inner wall of the crane cabin. The rubber buffer pad drives the movable block to move backward along the movable groove through the mounting plate. The movable block drives the limit movable plate to move backward along the limit groove. The limit movable plate extrude the metal spring sheet to produce deformation for buffering, thereby achieving the purpose of buffering and protecting the crane door, avoiding the situation where the operator uses too much force when opening and closing the door, causing the door to be damaged, thereby improving the service life of the crane door and ensuring the safety protection performance of the entire crane door.

[0018] (2) The crane door safety device is provided with a compression spring, and the metal spring is deformed to squeeze the compression spring, so that the compression spring is deformed to achieve the purpose of secondary buffering, thereby further improving the safety protection performance of the entire crane door.

[0019] (3) The crane door safety device is provided with a rubber buffer pad. The material of the rubber buffer pad can effectively protect the crane cab, thereby preventing the opening and closing of the crane safety door assembly from causing damage to the crane cab, thereby improving the service life and safety of the crane cab. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the front side of the present utility model;

[0021] Figure 2 This is a front structural diagram of the crane safety door assembly of the present utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0023] Legend: 10. Installation base plate; 11. Safety guardrail; 12. Crane cab; 13. Crane safety door assembly; 14. Crane door; 15. Mounting base; 16. Limiting slot; 17. Movable slot; 18. Compression spring; 19. Metal spring; 20. Limiting movable plate; 21. Movable block; 22. Installation plate; 23. Rubber buffer pad. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0025] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side" and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, or the positions or location relationships in which the product of the present invention is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1: A crane door safety device, such as Figure 1 As shown, it includes an installation base plate 10, a safety guardrail 11 is fixedly installed on the top right side of the installation base plate 10, and a crane cab 12 is fixedly installed on the top left side of the installation base plate 10, and a crane safety compartment door assembly 13 is provided at the front end of the inner wall of the crane cab 12. By setting the crane safety compartment door assembly 13, when closing the door, the rubber buffer pad 23 in the safety buffer assembly on the crane safety compartment door assembly 13 will contact the inner wall of the crane cab 12, and the rubber buffer pad 23 drives the movable block 21 to move backward along the movable groove 17 through the installation plate 22, and the movable block 21 drives the limiting movable plate 20 to move backward along the limiting groove 16, and the limiting movable plate 20 extrude the metal spring sheet 19 to produce deformation for buffering, thereby achieving the purpose of buffering and protecting the crane compartment door 14, avoiding the situation that the compartment door is damaged due to excessive force when the staff opens and closes the compartment door, improving the service life of the crane compartment door 14, and ensuring the safety protection performance of the compartment door of the entire crane.

[0031] Example 2: Based on Example 1, Figure 2 As shown, the crane safety door assembly 13 includes a crane door 14, and the crane door 14 is movably connected to the front end of the inner wall of the crane cabin 12 through a hinge. A safety buffer assembly is provided at the rear end of the left wall of the crane door 14. By providing a compression spring 18, the metal spring 19 is deformed to squeeze the compression spring 18, so that the compression spring 18 is deformed to achieve the purpose of secondary buffering, thereby further improving the safety protection performance of the entire crane door.

[0032] Example 3: Based on Example 1 and Example 2, Figure 3As shown, the safety buffer assembly includes a mounting seat 15, and the right side wall of the mounting seat 15 is fixedly connected to the rear end of the left side wall of the crane door 14, a limiting groove 16 is provided at the top middle end of the mounting seat 15, and a movable groove 17 is provided at the front end of the limiting groove 16 on the top of the mounting seat 15, and a compression spring 18 is fixedly installed at the limiting groove 16 on the rear end of the inner wall of the mounting seat 15, and a metal spring 19 is fixedly installed on the front of the compression spring 18, and the back of the metal spring 19 is movably connected to the rear end of the inner wall of the mounting seat 15 at the limiting groove 16, and a limiting movable plate 20 is movably installed on the inner wall of the mounting seat 15 at the limiting groove 16, and the back of the limiting movable plate 20 is in contact with the metal spring 19. The front of the limiting movable plate 20 is movably connected, and a movable block 21 is fixedly installed on the front of the movable plate 20, and the outer wall of the movable block 21 is movably connected to the inner wall of the mounting seat 15 at the movable groove 17. The front of the movable block 21 is fixedly installed with a mounting plate 22, and the front of the mounting plate 22 is fixedly installed with a rubber buffer pad 23, and the front of the rubber buffer pad 23 is in movably contact with the inner wall of the crane cab 12. By providing the rubber buffer pad 23, the material of the rubber buffer pad 23 can effectively protect the crane cab 12, thereby avoiding the situation where the switch of the crane safety compartment door assembly 13 causes damage to the crane cab 12, thereby improving the service life and safety of the crane cab 12.

[0033] The working principle of the present utility model is as follows: when the crane door 14 is closed, the rubber buffer pad 23 on the safety buffer assembly will contact the inner wall of the crane cabin 12, and the rubber buffer pad 23 drives the movable block 21 to move backward along the movable groove 17 through the mounting plate 22, and the movable block 21 drives the limiting movable plate 20 to move backward along the limiting groove 16, and the limiting movable plate 20 squeezes the metal spring 19 to generate deformation for buffering, and the metal spring 19 deforms and squeezes the compression spring 18 to generate deformation for secondary buffering, thereby achieving the purpose of buffering protection of the crane door 14.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A crane door safety device, comprising a mounting base (10), characterized in that: A safety guardrail (11) is fixedly installed on the right side of the top of the installation base plate (10), and a crane cabin (12) is fixedly installed on the left side of the top of the installation base plate (10). A crane safety door assembly (13) is provided at the front end of the inner wall of the crane cabin (12). The crane safety door assembly (13) includes a crane cabin door (14), and the crane cabin door (14) is movably connected to the front end of the inner wall of the crane cabin (12) through a hinge. A safety buffer assembly is provided at the rear end of the left wall of the crane cabin door (14). The safety buffer assembly includes a mounting seat (15), and the right side wall of the mounting seat (15) is fixedly connected to the rear end of the left wall of the crane cabin door (14). A limiting groove (16) is provided at the middle end of the top of the mounting seat (15), and a movable groove (17) is provided at the front end of the limiting groove (16) at the top of the mounting seat (15). A compression spring (18) is fixedly installed at the rear end of the inner wall of the mounting seat (15) at the limiting groove (16).

2. The crane door safety device according to claim 1, characterized in that: A metal spring (19) is fixedly mounted on the front of the compression spring (18), and the back of the metal spring (19) is movably connected to the rear end of the inner wall of the mounting seat (15) at the limiting groove (16).

3. The crane door safety device according to claim 1, characterized in that: A limit movable plate (20) is movably mounted on the inner wall of the mounting seat (15) at the limit groove (16).

4. The crane door safety device according to claim 3, characterized in that: The back surface of the position-limiting movable plate (20) is movably connected to the front surface of the metal spring (19).

5. The crane door safety device according to claim 3, characterized in that: A movable block (21) is fixedly mounted on the front side of the position-limiting movable plate (20).

6. The crane door safety device according to claim 5, characterized in that: The outer wall of the movable block (21) is movably connected to the inner wall of the mounting seat (15) at the movable groove (17).

7. The crane door safety device according to claim 5, characterized in that: A mounting plate (22) is fixedly mounted on the front side of the movable block (21).

8. The crane door safety device according to claim 7, characterized in that: A rubber buffer pad (23) is fixedly mounted on the front side of the mounting plate (22).

9. The crane door safety device according to claim 8, characterized in that: The front surface of the rubber buffer pad (23) is in active contact with the inner wall of the crane cabin (12).

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