Lifting appliance for lifting steel plate

Abstract

The utility model provides a lifting appliance for lifting a steel plate, which comprises a lifting hook body which comprises a first plate, a second plate, a third plate and a fourth plate, the first plate is arranged in the horizontal direction, the second plate is arranged in the vertical direction and fixedly installed at one end of the first plate, and the third plate is arranged in the horizontal direction and fixedly installed at the top of the second plate. When the steel plate is hoisted, the edge of the steel plate is slightly lifted, the steel plate is sleeved with the hoisting hook body, the steel plate is attached to the second plate, and the steel plate is located in the inner groove of the hook unit, so that the hoisting hook body can be clamped outside the steel plate, and when the steel plate is hoisted, the steel plate is located in the inner groove of the hook unit; therefore, the contact area between the lifting hook body and the steel plate is increased, the stress area is increased, the situation that the steel plate falls down due to slippage between the lifting hook body and the steel plate when the steel plate is lifted is effectively avoided, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel plate hoisting, in particular to a hoisting device for steel plate hoisting. Background Art

[0002] Explosive welding is a method of welding dissimilar metals using explosives as energy. During explosive welding, the steel plate to be welded needs to be hoisted and placed on the bottom metal plate. When hoisting the steel plate, a hook is needed to hoist the steel plate. The hook is a high-strength and high-toughness hoisting tool, which is widely used in factories, mines, petroleum, chemicals, ship docks and other industries, and has a wide demand.

[0003] At present, the hooks on the market are generally S hooks, nose hooks, American hooks, horn hooks and eye-shaped sliding hooks. Although the above hooks can be used to hang steel plates, they still have the following defects in actual use:

[0004] Due to the shape of the hook itself, the contact area between the hook and the steel plate is relatively small. The small force-bearing area leads to large local pressure, which makes it easy for the hook to slide on the surface of the steel plate. This causes the hook to slide and fall off when workers use the above lifting equipment to prepare for explosive composite operations on the steel plate, causing the steel plate to fall downward, which can easily cause personal injury to the workers and pose a major safety hazard.

[0005] Therefore, the present application proposes a lifting device for lifting steel plates. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a hoisting device for steel plate hoisting, which solves the problems mentioned in the background technology.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A lifting device for lifting a steel plate comprises a hook body, which comprises a first plate, a second plate, a third plate and a fourth plate;

[0009] The first plate is arranged in a horizontal direction, the second plate is arranged in a vertical direction and fixedly mounted on one end of the first plate, the third plate is arranged in a horizontal direction and fixedly mounted on the top of the second plate, and a hook unit having a U-shaped longitudinal section is formed by the first plate, the second plate and the third plate;

[0010] The fourth plate is fixedly mounted on one end of the third plate away from the second plate, the fourth plate is inclined upward in a direction away from the third plate, and a hanging hole is provided on the fourth plate.

[0011] Further: a positioning mechanism for positioning the steel plate is installed on the third plate.

[0012] Further: the positioning mechanism includes:

[0013] A positioning screw is provided on the third plate with a vertical through hole, a positioning block is welded on the top of the third plate and above the through hole, the positioning screw is vertical and the thread passes through the positioning block, and the positioning screw movably passes through the through hole.

[0014] Further: the first plate, the second plate, the third plate and the fourth plate are integrally formed into a hook body.

[0015] Furthermore: the edges of the hook body are all provided with rounded corner structures.

[0016] Furthermore: the positioning mechanism also includes a guide rod that movably penetrates the positioning block in a vertical direction, the bottom end of the guide rod movably penetrates the third plate and is fixedly installed with a contact plate, and the positioning screw is rotatably connected to the contact plate.

[0017] Further: the positioning screw is located at one end of the guide rod close to the second plate.

[0018] Furthermore: a rubber plate is fixedly installed on one side of the contact plate and the first plate that are close to each other.

[0019] The utility model provides a lifting device for lifting steel plates. Compared with the prior art, it has the following beneficial effects:

[0020] 1. When hoisting the steel plate, slightly lift the edge of the steel plate, and sleeve the hook body on the outside of the steel plate, so that the steel plate fits with the second plate, and the steel plate is located in the inner groove of the hook unit, so that the hook body can be stuck on the outside of the steel plate. When hoisting the steel plate, the steel plate is located in the inner groove of the hook unit, thereby increasing the contact area between the hook body and the steel plate, and increasing the force-bearing area, thereby effectively avoiding the situation where the hook body and the steel plate slip when hoisting the steel plate, causing the steel plate to fall downward, and improving the safety of the operation;

[0021] 2. Through the design of the positioning mechanism, when the hook body is sleeved on the outside of the steel plate, the positioning mechanism can achieve the positioning effect between the hook body and the steel plate, further improving the stability of the hook body when hanging the steel plate;

[0022] 3. By setting the rubber plate, when the steel plate is hoisted by the hook body, when the contact plate and the first plate are in contact with the steel plate, the rubber plate on the contact plate and the first plate are in contact with the steel plate, increasing the friction between the contact plate and the first plate and the steel plate, thereby further improving the hoisting stability, and the contact plate and the rubber plate on the first plate are in contact with the steel plate, effectively avoiding the hard contact between the contact plate and the first plate and the steel plate, causing wear on the surface of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional structural schematic diagram of the utility model is shown;

[0025] Figure 2 Shows a front view of the utility model;

[0026] Figure 3 A schematic diagram of the installation structure of the positioning mechanism of the utility model is shown;

[0027] Figure 4 The utility model is shown Figure 3 The enlarged view of point A in the middle;

[0028] As shown in the figure: 1. first plate; 2. second plate; 3. third plate; 31. perforation; 4. fourth plate; 41. hanging hole; 5. positioning mechanism; 51. positioning screw; 52. positioning block; 53. guide rod; 54. contact plate; 6. rubber plate; 100. hook body. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1

[0031] In order to solve the technical problems in the background technology, a steel plate lifting device is provided as follows:

[0032] Combination Figure 1-Figure 4As shown, the utility model provides a lifting device for lifting steel plates, including a hook body 100, which includes a first plate 1, a second plate 2, a third plate 3 and a fourth plate 4; the first plate 1 is arranged in a horizontal direction, the second plate 2 is in a vertical direction and fixedly installed at one end of the first plate 1, the third plate 3 is in a horizontal direction and fixedly installed on the top of the second plate 2, and a hook unit with a U-shaped longitudinal section is formed by the first plate 1, the second plate 2 and the third plate 3; the fourth plate 4 is fixedly installed on the end of the third plate 3 away from the second plate 2, the fourth plate 4 is inclined upward in a direction away from the third plate 3, and a hanging hole 41 is opened on the fourth plate 4. When using the hook body 100 to lift the steel plate, the lifting chain of the external lifting equipment is passed through the hanging hole 41, so that the hook body 100 is connected with the external lifting equipment.

[0033] By setting the first plate 1, the second plate 2 and the third plate 3, a hook unit with a U-shaped longitudinal section is formed on the hook body 100. When hoisting the steel plate, the edge of the steel plate is slightly lifted, and the hook body 100 is sleeved on the outside of the steel plate so that the steel plate fits the second plate 2 and the steel plate is located in the inner groove of the hook unit, so that the hook body 100 can be stuck on the outside of the steel plate. When hoisting the steel plate, the steel plate is located in the inner groove of the hook unit, thereby increasing the contact area between the hook body 100 and the steel plate and the force-bearing area, thereby effectively avoiding the situation where the hook body 100 and the steel plate slip when hoisting the steel plate, causing the steel plate to fall downward, thereby improving the safety of the operation; conversely, after the steel plate is put down, when the operator takes the hook, he only needs to slightly lift the steel plate to pull out the hook body 100, which is easy to use.

[0034] Embodiment 2

[0035] like Figure 1-Figure 4 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0036] In this embodiment, a positioning mechanism 5 for positioning the steel plate is installed on the third plate 3. Through the design of the positioning mechanism 5, when the hook body 100 is sleeved on the outside of the steel plate, the positioning effect between the hook body 100 and the steel plate can be achieved through the positioning mechanism 5, thereby further improving the stability of the hook body 100 when hanging the steel plate.

[0037] In this embodiment, the positioning mechanism 5 includes: a positioning screw 51, a vertical through hole 31 is opened on the third plate 3, a positioning block 52 is welded on the top of the third plate 3 and above the through hole 31, the positioning screw 51 is in a vertical direction and the thread passes through the positioning block 52, and the positioning screw 51 movably passes through the through hole 31. When in use, when the hook body 100 is sleeved on the outside of the steel plate, the positioning screw 51 is rotated to make it spirally move on the positioning block 52 toward the first plate 1, so that the positioning screw 51 can be in conflict with the steel plate located in the inner groove of the hook unit, so that the first plate 1 and the positioning screw 51 both form a conflict with the steel plate, and the steel plate positioning effect can be achieved. The operation is simple, and during the spiral movement of the positioning screw 51 on the positioning block 52, the spacing between the positioning screw 51 and the first plate 1 is adjusted, so that the hook body 100 is suitable for hoisting steel plates of different thicknesses.

[0038] In this embodiment, the first plate 1 , the second plate 2 , the third plate 3 and the fourth plate 4 are integrally formed into the hook body 100 , thereby improving the structural stability of the hook body 100 .

[0039] Embodiment 3

[0040] like Figure 1-Figure 4 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0041] In this embodiment, the edges of the hook body 100 are provided with rounded corners, which effectively prevents the edges of the hook body 100 from scratching the hands of the workers when the workers pick up the hook body 100, causing hand injuries to the workers.

[0042] In this embodiment, the positioning mechanism 5 also includes a guide rod 53 that is movable in the vertical direction and penetrates the positioning block 52. The bottom end of the guide rod 53 is movable and penetrates the third plate 3 and is fixedly installed with a contact plate 54. The positioning screw 51 is rotatably connected to the contact plate 54. By setting the contact plate 54, the positioning screw 51 is rotated to make it spirally move on the positioning block 52 and approach the first plate 1. At this time, the positioning screw 51 and the contact plate 54 rotate, and the guide rod 53 approaches the first plate 1, so that the contact plate 54 approaches the first plate 1 and contacts the steel plate, thereby increasing the contact area between the positioning mechanism 5 and the steel plate, thereby improving the stability of the steel plate hoisting.

[0043] In this embodiment, the positioning screw 51 is located at one end of the guide rod 53 close to the second plate 2. By arranging the positioning screw 51 at the end of the guide rod 53 close to the second plate 2, since the threaded connection between the positioning screw 51 and the positioning block 52 is self-locking, the support stability of the end of the contact plate 54 is improved, and the bending of the end of the contact plate 54 when lifting the steel plate is effectively avoided.

[0044] In this embodiment, a rubber plate 6 is fixedly installed on one side of the contact plate 54 and the first plate 1 that are close to each other. By setting the rubber plate 6, when the steel plate is hoisted by the hook body 100, the contact plate 54 and the first plate 1 are in contact with the steel plate, and the rubber plate 6 on the contact plate 54 and the first plate 1 are in contact with the steel plate, increasing the friction between the contact plate 54 and the first plate 1 and the steel plate, thereby further improving the hoisting stability. In addition, the contact plate 54 and the rubber plate 6 on the first plate 1 are in contact with the steel plate, effectively avoiding hard contact between the contact plate 54 and the first plate 1 and the steel plate, which causes wear on the surface of the steel plate.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lifting device for lifting steel plates, characterized in that: It includes a hook body (100), which includes a first plate (1), a second plate (2), a third plate (3) and a fourth plate (4); The first plate (1) is arranged horizontally, the second plate (2) is arranged vertically and fixedly installed at one end of the first plate (1), the third plate (3) is arranged horizontally and fixedly installed on the top of the second plate (2), and a hook unit with a U-shaped longitudinal section is formed by the first plate (1), the second plate (2) and the third plate (3); The fourth plate (4) is fixedly installed at one end of the third plate (3) away from the second plate (2), the fourth plate (4) is inclined upward along the direction away from the third plate (3), and a hanging hole (41) is formed on the fourth plate (4).

2. The steel plate lifting device according to claim 1, characterized in that: A positioning mechanism (5) for positioning the steel plate is installed on the third plate (3).

3. A steel plate lifting device according to claim 2, characterized in that: The positioning mechanism (5) includes: A positioning screw (51), a vertical through hole (31) is formed on the third plate (3), a positioning block (52) is welded above the through hole (31) at the top of the third plate (3), the positioning screw (51) is arranged vertically and threadedly penetrates the positioning block (52), and the positioning screw (51) movably penetrates the through hole (31).

4. The steel plate lifting device according to claim 1, characterized in that: The first plate (1), the second plate (2), the third plate (3) and the fourth plate (4) are integrally formed into the hook body (100).

5. The steel plate lifting device according to claim 1, characterized in that: Rounded corners are provided at the edges of the hook body (100).

6. The steel plate lifting device according to claim 3, characterized in that: The positioning mechanism (5) further includes a guide rod (53) vertically and movably penetrating the positioning block (52), the bottom end of the guide rod (53) movably penetrates the third plate (3) and is fixedly installed with a contact plate (54), and the positioning screw (51) is rotatably connected to the contact plate (54).

7. The steel plate lifting device according to claim 6, characterized in that: The positioning screw (51) is located at one end of the guide rod (53) close to the second plate (2).

8. The steel plate lifting device according to claim 7, characterized in that: Rubber plates (6) are fixedly installed on the sides of the contact plate (54) and the first plate (1) close to each other.

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