Ground storage and unhooking trolley for three-stage hook of crown block

Abstract

The utility model provides a kind of ground storage and unhooking operation trolley of top car three-stage hook, and the operation trolley includes base and the three-stage hook storage frame arranged on base, walking wheel is equipped in the bottom of base, handheld push frame is equipped in the side of base, the three-stage hook storage frame is arranged in the side of base away from handheld push frame in inclined shape, the three-stage hook storage frame includes two groups of symmetrically arranged three-stage hook support frame, each group of three-stage hook support frame is by vertical support and the inclined frame with U type or concave type or V type recess, the gap of two groups of inclined frame is oppositely arranged, and it is inclined upward to the side away from handheld push frame, and the interval between two groups of inclined frame is matched with the width of top car three-stage hook, vertical support is supported in the middle upper portion of inclined frame.The utility model can conveniently transport, hook and unhook work of top car three-stage hook, avoids the action of personnel stoop and carry, reduces the labor intensity and fatigue degree of operator, improves work efficiency.

Description

Technical Field

[0001] This utility model pertains to auxiliary tools for hoisting iron (steel) ladles in steelmaking areas, specifically a trolley used for ground storage and hook detachment operations of the three-stage hook of an overhead crane for hoisting iron (steel) ladles. Background Technology

[0002] The iron (steel) ladle is the main container for transporting, transferring, and smelting molten iron (steel) in the steelmaking area. The hoisting of the iron (steel) ladle is primarily achieved by using an overhead crane to lift the trunnions. In the overhead crane hoisting and ladle-moving operation, after use, the crane's three-stage hook must be placed directly on the workshop floor. Before and after each hooking operation, operators must manually bend over to move it. Because the crane's three-stage hook is quite heavy, generally estimated at 40kg, workers need to perform frequent heavy physical labor, bending over and exerting force during handling, manual hooking, and unhooking, which easily leads to worker fatigue. Furthermore, improper handling posture or uneven ground can easily cause acute or chronic injuries such as lumbar muscle strain and herniated discs, posing serious occupational health and safety hazards and even leading to falls. In addition, manual handling is difficult to align, time-consuming, and inefficient, especially when quick hooking is required, affecting the overall work rhythm. Summary of the Invention

[0003] This utility model addresses the shortcomings of existing technologies by providing a trolley for ground storage and unhooking of the overhead crane's three-stage hook. This trolley facilitates the transfer, hooking, and unhooking of the overhead crane's three-stage hook, completely eliminating the need for personnel to bend over and carry it, reducing manual labor, and improving work efficiency.

[0004] To achieve the above-mentioned technical objectives, this utility model provides a ground storage and unhooking trolley for a crane's three-level hook. The trolley includes a base and a three-level hook storage rack mounted on the base. Wheels are provided at the bottom of the base, and a hand-held pusher is provided on one side of the base. The three-level hook storage rack is inclined on the side of the base away from the hand-held pusher. The three-level hook storage rack includes two symmetrically arranged three-level hook support frames. Each set of three-level hook support frames consists of a vertical support and an inclined frame with a U-shaped, concave, or V-shaped groove. The grooves of the two sets of inclined frames are opposite each other, their bottom ends are fixed to the base, and they are inclined upwards towards the side away from the hand-held pusher. The distance between the two sets of inclined frames matches the width of the crane's three-level hook. The vertical support is supported in the upper middle part of the inclined frame.

[0005] The preferred technical solution of this utility model is as follows: the base is a square base, and the base is equipped with railings on the other three sides except for the side where the hand pusher is set, and the railings have notches corresponding to the positions of the three-level hook storage rack; the inner wall of the groove of the inclined frame is provided with a rubber pad layer.

[0006] The preferred technical solution of this utility model is as follows: four walking wheels are provided, which are respectively arranged at the four corners of the bottom of the base, and the two walking wheels near the hand-held push frame are equipped with brake components.

[0007] The preferred technical solution of this utility model is as follows: the front sides of the two sets of three-level hook support frames are connected as one unit by a connecting crossbeam, and the connecting crossbeam is welded to the base. The bottom ends of the inclined frames of the two sets of three-level hook support frames are welded to the connecting crossbeam.

[0008] The preferred technical solution of this utility model is that the highest point support height of the three-level hook storage rack is 70-80cm.

[0009] The preferred technical solution of this utility model is as follows: the hand-held pusher is welded to the fence to form an integral part, and the hand-held pusher is also arranged in an inclined manner, and the inclination direction of the hand-held pusher is opposite to the inclination direction of the three-level hook storage rack.

[0010] The beneficial effects of this utility model are:

[0011] (1) This utility model enables workers to stand and assist in the transfer, hooking and unhooking of the overhead crane's three-stage hook, completely avoiding the bending and carrying actions of personnel, reducing the labor intensity and fatigue of operators, fundamentally eliminating the risk of work-related injuries, completely eliminating the risk of waist sprains caused by manual carrying of heavy objects, protecting the health of employees, and achieving inherent safety.

[0012] (2) The trolley of this utility model is easy to move and can assist in the quick unhooking and hooking of the three mechanisms of the crane, which improves the work efficiency. The trolley moves and positions quickly, simplifies the hooking / unhooking process, and shortens the auxiliary operation time.

[0013] (3) This utility model avoids direct collision and drag between the hook and the ground, reduces wear on the hook, wire rope and ground, and extends the service life of the equipment; and the trolley itself becomes a mobile "fixed point", making the workshop floor cleaner and tools stored more in a standardized manner. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a side view of the present invention;

[0017] Figure 4 This is a reference diagram showing the usage state of this utility model.

[0018] In the diagram: 1—base, 2—three-stage hook storage rack, 200—vertical support, 201—slanted frame, 3—walking wheel, 4—fence, 5—crane three-stage hook, 6—notch, 7—handheld pusher. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figures 1 to 4 All accompanying drawings are simplified versions of embodiments and are intended solely for the purpose of clearly and concisely illustrating the embodiments of this utility model. The technical solutions shown in the drawings below are specific solutions of embodiments of this utility model and are not intended to limit the scope of the claimed utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] The embodiment provides a ground storage and unhooking trolley for a crane's three-stage hook, such as... Figures 1 to 4As shown, the trolley includes a base 1 and a three-stage hook storage rack 2 mounted on the base 1. The base 1 has wheels 3 at its bottom and a hand-held pusher 7 on one side. The three-stage hook storage rack 2 is inclined on the side of the base 1 away from the hand-held pusher 7. The three-stage hook storage rack 2 includes two symmetrically arranged three-stage hook support frames. Each set of three-stage hook support frames consists of a vertical support 200 and an inclined frame 201 with a U-shaped, concave, or V-shaped groove. The grooves of the two sets of inclined frames 201 are arranged opposite each other, their bottom ends are fixed to the base 1, and they are inclined upwards towards the side away from the hand-held pusher 7. The distance between the two sets of inclined frames 201 matches the width of the trolley's three-stage hook 5. The vertical support 200 is supported in the upper middle part of the inclined frame 201. The front sides of the two sets of three-stage hook support frames are connected as one unit by a connecting beam 202, which is welded to the base 1. The bottom ends of the inclined frames 201 of the two sets of three-stage hook support frames are welded to the connecting beam 202. The highest point support height of the three-stage hook storage frame 2 is 70-80cm, which is slightly higher than the minimum idle height of the overhead crane hook, or close to the waist height of the operator, ensuring that when hooking and unhooking, the operator only needs to stand or slightly bend their knees to operate easily without bending over. The three-stage hook storage frame 2 is welded according to the shape and size of the overhead crane three-stage hook 5. A rubber pad is provided in the U-shaped, concave, or V-shaped groove of each inclined frame 201 to securely support the hook and prevent it from rolling or slipping.

[0022] In the embodiments, such as Figures 1 to 4 As shown, the base 1 is a square base, and four wheels 3 are arranged at the four corners of the bottom of the base 1. Each wheel is equipped with a brake assembly to ensure that the trolley moves easily and can be parked stably in a designated position. Except for the side with the handheld pusher 7, the other three sides of the base 1 are equipped with railings 4, and the railings 4 have notches 6 corresponding to the positions of the three-level hook storage rack 2. The handheld pusher 7 is welded to the railings 4 to form a single unit, and the handheld pusher 7 is also arranged at an angle, with the angle of the handheld pusher 7 opposite to the angle of the three-level hook storage rack 2.

[0023] The vehicle body structure of this utility model adopts a small car frame made of square steel welded together, which has a stable structure and strong load-bearing capacity.

[0024] The working process of this utility model is as follows: The supervisor directs the overhead crane to precisely place the three-stage hook onto the three-stage hook storage rack 2 on the trolley, specifically as follows... Figure 4As shown, the overhead crane's third-stage hook 5 is vertically inserted into the grooves of the two inclined frames 201 through the two sets of third-stage hook support frames, and the third-stage hook 5 is supported by the two sets of third-stage hook support frames, with the upper part of the third-stage hook 5 protruding from the top of the inclined frame 201. When the overhead crane is needed, it is driven directly above the trolley, and the main hook is lowered. The person in charge of the transfer stands next to the trolley and directs the overhead crane to connect the auxiliary hook of the overhead crane to the third-stage hook 5. Throughout the process, the person maintains a natural standing posture. After the operation is completed, the person in charge directs the overhead crane to put the third-stage hook 5 back on the trolley, disconnects the connection, and the overhead crane can then raise the auxiliary hook and leave.

[0025] This invention offers safety and health benefits, fundamentally eliminating the risk of workplace injuries. It completely eliminates the risk of lumbar sprains caused by manually lifting heavy objects, protecting the health of employees and achieving inherent safety. The standing operation significantly reduces the labor intensity and fatigue of operators. It also indirectly saves costs, avoiding workplace injury medical expenses, lost wages, job replacement training costs, and potential legal risks associated with employee back injuries. Furthermore, this invention improves operational efficiency. The trolley moves and positions quickly, simplifies the hooking / unhooking process, shortens auxiliary operation time, avoids direct collisions and dragging between the hook and the ground, and reduces wear and tear on the hook, wire rope, and ground.

[0026] This utility model presents a low-cost, highly effective "minor modification" solution based on real-world problems. Its core innovation lies in redesigning work processes using simple tools, precisely addressing long-standing occupational health issues and embodying a "people-oriented" safety philosophy. This solution boasts strong universality and replicability. Any workshop or facility involving heavy lifting or frequent bending (such as foundries, mold makers, or large structural component assembly) can adopt this approach to create similar tooling and fixtures, making it valuable for company-wide and even industry-wide adoption.

[0027] The above description is merely one embodiment of this utility model, and while it is quite specific and detailed, it should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A trolley for ground storage and hook detachment operations of a three-stage hook for an overhead crane, characterized in that: The trolley includes a base (1) and a three-level hook storage rack (2) arranged on the base (1). The base (1) has a walking wheel (3) at the bottom and a hand-held pusher (7) on one side of the base (1). The three-level hook storage rack (2) is arranged in an inclined position on the side of the base (1) away from the hand-held pusher (7). The three-level hook storage rack (2) includes two sets of symmetrically arranged three-level hook support frames. Each set of three-level hook support frames consists of a vertical support (200) and an inclined frame (201) with a U-shaped, concave, or V-shaped groove. The grooves of the two sets of inclined frames (201) are arranged opposite each other. Their bottom ends are fixed to the base (1) and tilt upwards toward the side away from the hand-held pusher (7). The distance between the two sets of inclined frames (201) matches the width of the three-level hook (5) of the overhead crane. The vertical support (200) is supported in the upper middle part of the inclined frame (201).

2. The overhead crane three-stage hook ground storage and hook detachment operation trolley according to claim 1, characterized in that: The base (1) is a square base. Except for the side where the hand-held pusher (7) is set, the other three sides of the base (1) are equipped with railings (4), and the railings (4) have notches (6) at the positions corresponding to the three-level hook storage rack (2); the inner wall of the groove of the inclined frame (201) is equipped with a rubber pad layer.

3. A ground storage and unhooking trolley for a three-stage hook of an overhead crane according to claim 1 or 2, characterized in that: The walking wheels (3) are provided in four positions, which are respectively located at the four corners of the bottom of the base (1), and the two walking wheels near the hand-held push frame (7) are equipped with brake components.

4. A ground storage and unhooking trolley for a three-stage hook of an overhead crane according to claim 1 or 2, characterized in that: The front sides of the two sets of three-level hook support frames are connected as one unit by a connecting beam (202), and the connecting beam (202) is welded to the base (1). The bottom ends of the inclined frames (201) of the two sets of three-level hook support frames are welded to the connecting beam (202).

5. A ground storage and unhooking trolley for a three-stage hook of an overhead crane according to claim 1 or 2, characterized in that: The highest point support height of the three-level hook storage rack (2) is 70-80cm.

6. The overhead crane three-stage hook ground storage and hook detachment trolley according to claim 2, characterized in that: The hand-held pusher (7) is welded to the fence (4) to form a whole. The hand-held pusher (7) is also arranged in an inclined position, and the inclined direction of the hand-held pusher (7) is opposite to the inclined direction of the three-level hook storage rack (2).

Images