Anti-falling device for lifting hook of truss crane in gravity type beam yard

Abstract

The utility model provides a gravity type girder yard truss crane hook anti-dropping device, which relates to the technical field of hook anti-dropping devices, and comprises a hook main body, a rotating groove is arranged in the hook main body close to the top end, a rotating column is rotatably connected in the rotating groove, and first connecting rods are symmetrically fixed on the outer side wall of the rotating column close to the front side; a first fixing rod is fixed to the bottom of the first connecting rod, second connecting rods are symmetrically fixed to the positions, close to the back face, of the outer side wall of the rotating column, telescopic rods are arranged at the ends, away from the rotating column, of the second connecting rods, and a second fixing rod is fixed between the telescopic rods. The steel wire rope can be taken down simply and conveniently, so that a worker cannot damage the device on purpose due to inconvenience in operation, the whole device is more durable, the device is always kept in an anti-unhooking state under the condition of no man-made interference, and the anti-unhooking effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of hook anti - detachment devices, in particular to a gravity - type hook anti - detachment device for gantry cranes in beam yards. Background Art

[0002] A gantry crane is a hoisting tool suspended from the ceiling or brackets, usually composed of one or more steel ropes or chains and can move freely. Its structural form is relatively simple, without the columns and cross - beams of a gantry. The running track of the gantry crane can be installed on the column girders and is used for lifting and moving goods in the factory building. It is equipped with a hook to lift and transport goods, and a hook anti - detachment device is generally installed on the hook to prevent the lifting rope of the goods from falling off.

[0003] The existing hook anti - detachment devices generally adopt a combination of iron sheets and springs. However, when unhooking, the iron sheet needs to be pressed inward for the anti - detachment device installed in this way, which is inconvenient to use. For the sake of convenience in operation, some workers often deliberately damage the iron sheet. And when the spring is used for a long time, it is easy to fall off, causing the iron sheet not to return to its original position, resulting in the failure of the anti - detachment hook device. Moreover, the iron sheet is generally thin, and the iron sheet will also be damaged due to friction when the steel wire rope swings. Therefore, we propose a gravity - type hook anti - detachment device for gantry cranes in beam yards. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art. The existing hook anti - detachment devices generally adopt a combination of iron sheets and springs. However, when unhooking, the iron sheet needs to be pressed inward for the anti - detachment device installed in this way, which is inconvenient to use. For the sake of convenience in operation, some workers often deliberately damage the iron sheet. And when the spring is used for a long time, it is easy to fall off, causing the iron sheet not to return to its original position, resulting in the failure of the anti - detachment hook device. Moreover, the iron sheet is generally thin, and the iron sheet will also be damaged due to friction when the steel wire rope swings.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gravity - type hook anti - detachment device for gantry cranes in beam yards, including a hook body. A rotating groove is opened near the top inside the hook body. A rotating column is rotatably connected inside the rotating groove. Symmetrically fixed on the outer side wall of the rotating column near the front are first connecting rods. A first fixing rod is fixed at the bottom of the first connecting rod. Symmetrically fixed on the outer side wall of the rotating column near the back are second connecting rods. An expansion rod is arranged at one end of the second connecting rod away from the rotating column. A second fixing rod is fixed between the expansion rods. A fixing groove is opened on the inner side wall of the hook body corresponding to the second fixing rod.

[0007] As a preferred scheme of the utility model, the fixing groove is adapted to the second fixing rod.

[0008] The technical effect of adopting the above further solution is that: by making the fixing groove match with the second fixing rod, the second fixing rod can be stuck inside the fixing groove to help fix the first connecting rod and the second connecting rod.

[0009] As a preferred solution of the present utility model, a rotating disk is sleeved on the outer side wall of the rotating column and inside the rotating groove, a rotating groove is opened on the inner side wall of the rotating groove corresponding to the rotating disk, and the rotating disk is rotatably connected with the rotating groove.

[0010] The technical effect of adopting the above further solution is that: by rotatably connecting the rotating disk with the rotating groove, the rotating column can rotate more conveniently inside the rotating groove, and the rotating column will not fall off inside the rotating groove.

[0011] As a preferred solution of the present utility model, the first connecting rod and the first fixing rod are welded and fixed.

[0012] The technical effect of adopting the above further solution is that: the welding and fixing method can be more stable and firm.

[0013] As a preferred solution of the present utility model, a limiting seat is fixed inside the second connecting rod where the telescopic rod extends, a limiting groove is opened on the inner side of the second connecting rod corresponding to the limiting seat, and a return spring is sleeved on the periphery of the telescopic rod between the side of the limiting seat away from the second fixing rod and the inner side wall of the limiting groove.

[0014] The technical effect of adopting the above further solution is that: through the design of the limiting seat and the return spring, when the second fixing rod is displaced to the fixing groove, the return spring can be reset to push the limiting seat, so that the telescopic rod can drive the second fixing rod to be displaced and stuck inside the fixing groove.

[0015] As a preferred solution of the present utility model, the first connecting rod and the second connecting rod are made of steel material, the diameter of the first connecting rod is 15 cm, and the diameter of the second connecting rod is 10 cm.

[0016] The technical effect of adopting the above further solution is that: through the first connecting rod and the second connecting rod made of steel material, the influence caused by the swinging and friction of the steel wire rope can be well avoided.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] In the present utility model, through the design of the fixing groove, the first connecting rod, the first fixing rod, the second connecting rod and the second fixing rod, it is relatively simple and convenient to remove the wire rope when the anti-disengagement device for the lifting hook of the gravity-type beam yard gantry crane is required, so that the staff will not deliberately damage the device due to inconvenient operation, the overall device is more durable, and it always remains in the anti-disengagement state without human interference, and the anti-disengagement effect is better. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the anti-disengagement device for the lifting hook of the gravity-type beam yard gantry crane provided by the present utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the fixing groove of the anti-disengagement device for the lifting hook of the gravity-type beam yard gantry crane provided by the present utility model;

[0021] Figure 3 It is a back dissection diagram of the structure of the rotating disc of the anti-disengagement device for the lifting hook of the gravity-type beam yard gantry crane provided by the present utility model;

[0022] Figure 4 It is a side dissection diagram of the structure of the limit seat of the anti-disengagement device for the lifting hook of the gravity-type beam yard gantry crane provided by the present utility model.

[0023] Legend: 1. Hook body; 101. Fixing groove; 2. Rotating groove; 201. Rotating column; 202. Rotating disc; 203. Rotating groove; 3. First connecting rod; 301. First fixing rod; 4. Second connecting rod; 401. Telescopic rod; 402. Second fixing rod; 403. Limit seat; 404. Limit groove; 405. Return spring. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant content. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Embodiment

[0028] As Figures 1-4 As shown, the present utility model provides a technical solution: a gravity beam yard gantry crane hook anti - detachment device, which includes a hook body 1. A rotating groove 2 is opened near the top inside the hook body 1. A rotating column 201 is rotatably connected inside the rotating groove 2. The rotating column 201 can rotate inside the rotating groove 2. Symmetrically fixed on the outer side wall of the rotating column 201 near the front is a first connecting rod 3. A first fixing rod 301 is fixed at the bottom of the first connecting rod 3. Symmetrically fixed on the outer side wall of the rotating column 201 near the back is a second connecting rod 4. One end of the second connecting rod 4 away from the rotating column 201 is provided with a telescopic rod 401. A second fixing rod 402 is fixed between the telescopic rods 401. A fixing groove 101 is opened on the inner side wall of the hook body 1 corresponding to the second fixing rod 402. The second fixing rod 402 can be stuck inside the fixing groove 101. Embodiment

[0029] As Figures 1-4 As shown, the fixing groove 101 is adapted to the second fixing rod 402. By the adaptation of the fixing groove 101 and the second fixing rod 402, the second fixing rod 402 can be stuck inside the fixing groove 101 to help fix the first connecting rod 3 and the second connecting rod 4.

[0030] A rotating disc 202 is sleeved on the outer side wall of the rotating column 201 and inside the rotating groove 2. A rotating groove 203 is opened on the inner side wall of the rotating groove 2 corresponding to the rotating disc 202. The rotating disc 202 is rotatably connected to the rotating groove 203. By the rotational connection between the rotating disc 202 and the rotating groove 203, the rotating column 201 can rotate more conveniently inside the rotating groove 2 and the rotating column 201 will not fall off inside the rotating groove 2.

[0031] The first connecting rod 3 and the first fixing rod 301 are fixed by welding, and the welding fixation can be more stable and firm.

[0032] The telescopic rod 401 extends to the internal fixed limiting seat 403 of the second connecting rod 4, and a limiting groove 404 is provided inside the second connecting rod 4 corresponding to the limiting seat 403. A return spring 405 is provided between the side of the limiting seat 403 away from the second fixed rod 402 and the inner side wall of the limiting groove 404 and on the outer periphery of the telescopic rod 401. Through the design of the limiting seat 403 and the return spring 405, when the second fixed rod 402 is displaced to the fixed groove 101, the return spring 405 can be reset to push the limiting seat 403, so that the telescopic rod 401 can drive the second fixed rod 402 to displace and snap into the inside of the fixed groove 101.

[0033] The first connecting rod 3 and the second connecting rod 4 are made of steel. The diameter of the first connecting rod 3 is 15 cm, and the diameter of the second connecting rod 4 is 10 cm. The first connecting rod 3 and the second connecting rod 4 made of steel can effectively avoid the influence of the steel wire rope during swinging friction.

[0034] The working process of the utility model is as follows: when the steel wire rope needs to be removed when using the gravity-type beam yard truss crane hook anti-detachment device, the staff can first use the hand to push the first fixing rod 301, so that the first fixing rod 301 drives the second fixing rod 402 to move, so that the second fixing rod 402 will be separated from the fixing groove 101. At this time, the staff can take out the steel wire rope very conveniently, and the overall process is simple and convenient. The first connecting rod 3 made of steel and with a diameter of 15 cm and the second connecting rod 4 with a diameter of 10 cm have strong wear resistance and a long service life. The first connecting rod 3 can fall by its own weight to clamp the second fixing rod 402 into the fixing groove 101, which can effectively prevent the steel wire rope from falling off. Compared with the existing gravity-type beam yard truss crane hook anti-detachment device, it is simple and convenient to remove the steel wire rope, so that the staff will not deliberately damage the device due to inconvenient operation. The overall device is more durable, and it is always kept in the anti-unhooking state without human interference, and the anti-detachment effect is better.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Gravity beam yard truss crane hook anti - detachment device, including a hook body (1), characterized in that: A rotating groove (2) is formed inside the hook body (1) near the top. A rotating column (201) is rotatably connected inside the rotating groove (2). First connecting rods (3) are symmetrically fixed on the outer side wall of the rotating column (201) near the front. A first fixing rod (301) is fixed at the bottom of the first connecting rod (3). Second connecting rods (4) are symmetrically fixed on the outer side wall of the rotating column (201) near the back. One end of the second connecting rod (4) away from the rotating column (201) is provided with a telescopic rod (401). A second fixing rod (402) is fixed between the telescopic rods (401). A fixing groove (101) is formed on the inner side wall of the hook body (1) corresponding to the second fixing rod (402).

2. The gravity beam yard gantry crane hook anti-disengagement device according to claim 1, characterized in that: The fixing groove (101) is adapted to the second fixing rod (402).

3. The gravity beam yard truss crane hook anti-disengagement device according to claim 1, characterized in that: A rotating disc (202) is sleeved on the outer side wall of the rotating column (201) and inside the rotating groove (2). A rotating groove (203) is formed on the inner side wall of the rotating groove (2) corresponding to the rotating disc (202). The rotating disc (202) is rotatably connected to the rotating groove (203).

4. The gravity-type beam yard gantry crane hook anti-disengagement device according to claim 1, characterized in that: The first connecting rod (3) and the first fixing rod (301) are fixedly welded.

5. The gravity type beam yard overhead crane hook anti - detachment device according to claim 1, characterized in that: The telescopic rod (401) extends into the second connecting rod (4) and is fixed with a limit seat (403). A limit groove (404) is formed in the second connecting rod (4) corresponding to the limit seat (403). A return spring (405) is sleeved on the outer periphery of the telescopic rod (401) between the side of the limit seat (403) away from the second fixing rod (402) and the inner side wall of the limit groove (404).

6. The gravity beam yard truss crane hook anti-disengagement device according to claim 1, characterized in that: The first connecting rod (3) and the second connecting rod (4) are made of steel. The diameter of the first connecting rod (3) is 15 cm, and the diameter of the second connecting rod (4) is 10 cm.

Images