A small piece of spray pre-treatment bulk lifting appliance

Abstract

The utility model relates to a kind of small piece lifting appliance of pre-treatment loose piece before spraying.The utility model discloses a kind of small piece lifting appliance of pre-treatment loose piece before spraying include: beam plate and support plate, the beam plate is extended along transverse and is equipped with multiple hanging holes at intervals, the beam plate is also provided with lifting hole, the support plate has two and is horizontally arranged in the beam plate both ends, with the bottom of the beam plate is fixed.The utility model discloses a kind of small piece lifting appliance of pre-treatment loose piece before spraying has the advantages that structure is simple, pre-treatment effect is good.

Description

Technical Field

[0001] This utility model relates to the field of pre-treatment technology for elevator parts, and in particular to a lifting tool for pre-treatment of loose parts. Background Technology

[0002] To adapt to different operating environments, especially in coastal areas, elevator components need to be painted to improve their appearance, provide corrosion protection, and extend their service life. However, the surface of these components often contains scale, rust, grease, dust, and other contaminants that severely affect paint adhesion. Therefore, pre-painted components often require chemical treatment, following the steps of pickling, phosphating, rinsing, and drying. This pre-treatment thoroughly cleans the components, ensuring a strong bond between the paint powder and the metal surface during subsequent painting, resulting in high-quality products and extended lifespan. The pre-painting treatment is conducted in a chemical bath. Based on the requirements of pickling and phosphating, pre-painted components need to be immersed in the chemical bath for 3-5 minutes. Since elevator parts, including landing door panels and other workpieces, vary in shape, specifications, and size, and are mostly small and scattered parts, the current method is to place the parts in the same large basket and then soak the basket in a chemical agent bath. However, this method may result in the parts not being soaked properly at the contact points, leading to inadequate pretreatment of the parts in certain areas, which still cannot meet the requirements. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a pre-treatment lifting tool for loose parts, which has the advantages of simple structure and good pre-treatment effect.

[0004] A pre-treatment fixture for loose parts includes a beam and a support plate. The beam extends laterally and has multiple hanging holes spaced apart. The beam also has lifting holes. There are two support plates, which are horizontally arranged at both ends of the beam and fixed to the bottom of the beam.

[0005] This utility model describes a lifting device for loose and small parts in pre-coating treatment. Its structure is simple, lightweight, and easy to manufacture. This structure can remain upright, enabling rapid lifting of loose and small parts and improving their soaking quality, while avoiding the deformation problems that traditional lifting devices are prone to during handling. This extends the service life of the lifting device and reduces the production cost of pre-coating treatment.

[0006] Furthermore, the cross-sectional shape of the hanging hole includes a first arc segment, a second arc segment, and a connecting segment. The centers of the first and second arc segments are located on the same vertical line. The diameter of the second arc segment is larger than that of the first arc segment. The first arc segment is located on the side near the top of the beam slab, with its opening facing the second arc segment. The second arc segment is located on the side near the bottom of the beam slab, with its opening facing the first arc segment. There are two connecting segments symmetrically located on both sides of the vertical line. One end of each connecting segment connects to the endpoint of the first arc segment, and the other end connects to the endpoint of the second arc segment. This structure allows for higher strength in the beam slab near the top, while maximizing the diameter of the hanging hole, thus facilitating the insertion of hooks.

[0007] Furthermore, the diameter of the second arc segment is 1.5-2.0 times larger than that of the first arc segment. This structure allows for convenient hook insertion while maintaining the overall aesthetic appeal of the lifting device.

[0008] Furthermore, the total height of the hanging holes is greater than the sum of the diameters of the first and second arc segments. This structure allows the hook to be hung vertically in the hanging holes, facilitating operation and effectively preventing small parts from coming off due to the hook tilting during the hanging process.

[0009] Furthermore, the vertical distance between two adjacent hanging holes is not less than 150mm, so that the loose parts are spaced sufficiently apart to avoid collisions and incomplete soaking due to mutual contact.

[0010] Furthermore, the beam includes a suspension part and a hoisting part. The hanging holes are opened on the suspension part, and the hoisting parts are spaced apart on the top of the suspension part. The hoisting holes are elongated holes, and the center of the elongated holes is located on the axis of symmetry of two adjacent hanging holes. The hoisting holes are opened on the hoisting part and extend to the suspension part. This layout makes the hoisting structure more compact and at the same time reduces the impact of opening the hoisting holes on the structural strength of the beam.

[0011] Furthermore, the structure also includes two sets of reinforcing rib assemblies, each set disposed at both ends of the beam slab. Each set of reinforcing rib assemblies includes two symmetrically arranged stiffening plates on both sides of the beam slab. The stiffening plates are perpendicular to the beam slab, with their sides fixed to the beam slab and their bottom surfaces fixed to the support plate. This structure can improve the connection strength between the beam slab and the support plate.

[0012] Furthermore, the stiffeners are triangular in shape, which ensures support strength while making the structure lighter.

[0013] Furthermore, the beams, support plates, and stiffeners are fixed together by welding, which improves the overall integrity of the lifting device structure.

[0014] Furthermore, the thickness of the beam plate, support plate, and stiffener plate is 5mm, which enables rapid cutting of lifting tool components and reduces manufacturing costs and inventory preparation difficulties.

[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the pre-coating treatment fixture for loose parts and small components described in this utility model being placed on the frame of a square tube;

[0017] Figure 2 This is a front view of the lifting tool for loose parts and small components before painting.

[0018] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0019] Figure 4 This is a diagram showing the hook inserted vertically into the hanging hole.

[0020] Figure 5 A top view of the lifting device for loose parts and small components before spraying;

[0021] Figure 6 Left view of the pre-painting treatment fixture for loose parts;

[0022] Explanation of reference numerals in the attached drawings: 1. Beam plate; 11. Hanging hole; 111. First arc segment; 112. Second arc segment; 113. Connecting segment; 114. Vertical line; 12. Lifting hole; 13. Suspension part; 14. Lifting part; 2. Support plate; 3. Hook; 4. Square tube frame; 5. Stiffening plate. Detailed Implementation

[0023] Please see Figure 1-6 , Figure 1 This is a schematic diagram of the pre-coating treatment fixture for loose parts and small components described in this utility model being placed on the frame of a square tube; Figure 2 This is a front view of the lifting tool for loose parts and small components before painting. Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a diagram showing the hook inserted vertically into the hanging hole. Figure 5 A top view of the lifting device for loose parts and small components before spraying; Figure 6 Left view of the lifting tool for loose parts and small components before spraying.

[0024] This utility model discloses a lifting device for loose parts in pre-treatment spraying, including a beam plate 1 and a support plate 2. The beam plate 1 extends laterally and has multiple hanging holes 11 spaced apart, and also has lifting holes 12. There are two support plates 2, which are horizontally arranged at both ends of the beam plate 1 and fixed to the bottom of the beam plate 1. Loose parts are hung into the hanging holes 11 by hooks 3, and the lifting rope is passed through the lifting holes 12 to lift the entire lifting device. When the lifting device is lowered into the water tank, the support plate 2 is placed on the square tube frame 4 on both sides of the pre-treatment water tank, so that the lifting device is kept in an upright state, and the loose parts hanging on the lifting device are in a natural hanging state, avoiding collision between loose parts and affecting the pre-treatment effect, and effectively preventing loose parts from falling off.

[0025] The beam slab 1 includes a suspension section 13 and a hoisting section 14, with hanging holes 11 formed on the suspension section 13. The hoisting sections 14 are spaced apart at the top of the suspension section 13, and the hoisting holes 12 are oblong holes, the center of which lies on the axis of symmetry between two adjacent hanging holes 11. The hoisting holes 12 are formed on the hoisting sections 14 and extend towards the suspension section 13. To prevent the beam slab 1 from tilting during hoisting, there are two hoisting sections 14, symmetrically arranged about the centerline of the suspension section 13.

[0026] The cross-sectional shape of the hanging hole 11 can have various structural forms, such as circular or square. In this embodiment, the cross-sectional shape of the hanging hole 11 includes a first arc segment 111, a second arc segment 112, and a connecting segment 113. The centers of the first arc segment 111 and the second arc segment 112 are located on the same vertical line 114. The first arc segment 111 is located on the side near the top of the beam slab 1, and its opening faces the second arc segment 112. The second arc segment 112 is located on the side near the bottom of the beam slab 1, and its opening faces the first arc segment 111. There are two connecting segments 113, symmetrically located on both sides of the vertical line 114. One end of the connecting segment 113 is connected to the endpoint of the first arc segment 111, and the other end is connected to the endpoint of the second arc segment 112. The spacing between the hanging holes 11 needs to ensure that small parts are not prone to collision. Preferably, the vertical line 114 between two adjacent hanging holes 11 is not less than 150mm.

[0027] To enhance the structural strength of the lifting device, the diameter of the hole in the second arc segment 112 is larger than that in the first arc segment 111. This gives the upper part of the beam plate 1, which bears greater stress, higher strength. Simultaneously, it allows for some swaying space within the hanging hole 11 after the hook 3 is installed, preventing the hook 3 from impacting the hanging hole 11 and causing severe wear and deformation of the inner wall of the hanging hole 11. Preferably, the diameter of the hole in the second arc segment 112 is 1.5-2.0 times larger than that in the first arc segment 111, achieving both practicality and aesthetics while meeting usage requirements and without compromising the lifting device structure.

[0028] Traditional hanging holes 11 are typically circular holes slightly larger than the cross-section of the hook 3. Therefore, when inserting the hook 3 into the hanging hole 11, it is usually necessary to tilt the hook 3, which can cause small parts on the hook 3 to fall off and damage the parts. To make hanging small parts easier, the diameter of the first arc segment 111 is slightly larger than the cross-sectional size of the hook 3, and the total height of the hanging hole 11 is greater than the sum of the diameters of the first arc segment 111 and the second arc segment 112. Therefore, when inserting the hook 3 into the hanging hole 11, the increased vertical length of the hanging hole 11 allows the hook 3 to be inserted vertically, reducing the difficulty of operation.

[0029] To enhance the structural strength of the lifting device, it is also equipped with reinforcing rib assemblies. There are two sets of reinforcing rib assemblies, each located at both ends of the beam slab 1. Each set includes two symmetrically arranged stiffening plates 5 on both sides of the beam slab 1. The stiffening plates 5 are perpendicular to the beam slab 1, with their sides fixed to the beam slab 1 and their bottom surfaces fixed to the support plate 2. The beam slab 1, support plate 2, and stiffening plates 5 are all 5mm thick and are fixed together by welding, reducing the amount of material required during production. The stiffening plate 5 can have various structural forms; to make the lifting device lightweight, the stiffening plate 5 is triangular.

[0030] The following example illustrates the use of this lifting device. In this embodiment, the beam, support plate, and stiffening plate are welded from 5mm thick hot-rolled Q235 steel plates after being cut using laser cutting equipment, and the sharp corners are chamfered or rounded. The overall shape of the beam is like a long crossbeam, with a length of 3000mm, a width of 90mm, and a height of 95mm. Two lifting holes are provided, one on each side of the beam's centerline. The beam has 20 hanging holes spaced 15cm apart, effectively preventing contact between loose parts and ensuring more comprehensive and thorough immersion of the parts. Both the lifting holes and hanging holes are laser-processed. The support plate has a length of 90mm and a thickness of 60mm along the beam's thickness.

[0031] Because the lifting device needs to ensure that beam 1 is perpendicular to the ground during use, and traditional lifting devices are usually placed flat, they need to be flipped upright before use for installation. However, due to the long length of the lifting device, its structural strength in the direction perpendicular to the slab is low, and it is prone to deformation after repeated flipping and uprighting, resulting in instability. In this solution, when not in use, the lifting device is placed upright on the frame using the support plate 2, which facilitates the removal of the lifting device when needed and avoids the deformation problem of traditional lifting devices.

[0032] In use, small, loose parts can be directly fixed to the bottom of hook 3, and then hooked into hanging hole 11. The small parts will hang under their own weight, and hook 3 will be securely attached to the hanger under gravity. Next, the lifting device will lift the hanger through lifting hole 12 and transfer it to the pre-treatment water tank. The support plate 2 will be placed firmly against the square tube frame 4 on both sides of the water tank to prevent the entire hanger from falling into the water. After soaking, the hanger will be lifted out again and transferred to a drying or airing area.

[0033] This utility model describes a lifting device for loose and small parts in pre-coating treatment. Its structure is simple, lightweight, and easy to manufacture. This structure can remain upright, enabling rapid lifting of loose and small parts and improving their soaking quality, while avoiding the deformation problems that traditional lifting devices are prone to during handling. This extends the service life of the lifting device and reduces the production cost of pre-coating treatment.

[0034] In the description of this application, it should be understood that if terms such as "center", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "fixed," or "set in," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. 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 this utility model also intends to include these modifications and variations.

Claims

1. A lifting tool for loose small parts in pre-coating treatment, characterized in that: It includes a beam and a support plate. The beam extends laterally and has multiple hanging holes spaced apart. The beam also has lifting holes. There are two support plates, which are horizontally arranged at both ends of the beam and fixed to the bottom of the beam.

2. The pre-coating treatment fixture for loose parts according to claim 1, characterized in that: The cross-sectional shape of the hanging hole includes a first arc segment, a second arc segment, and a connecting segment. The centers of the first and second arc segments are located on the same vertical line. The diameter of the second arc segment is larger than that of the first arc segment. The first arc segment is located on the side near the top of the beam plate, with its opening facing the second arc segment. The second arc segment is located on the side near the bottom of the beam plate, with its opening facing the first arc segment. There are two connecting segments symmetrically located on both sides of the vertical line. One end of the connecting segment is connected to the endpoint of the first arc segment, and the other end is connected to the endpoint of the second arc segment.

3. The pre-coating treatment fixture for loose parts according to claim 2, characterized in that: The diameter of the second arc segment is 1.5-2.0 times larger than that of the first arc segment.

4. A pre-coating treatment fixture for loose parts according to claim 2, characterized in that: The total height of the hanging holes is greater than the sum of the diameters of the first and second arc segments.

5. A pre-coating treatment fixture for loose parts according to claim 2, characterized in that: The vertical distance between two adjacent hanging holes shall not be less than 150mm.

6. A pre-coating treatment fixture for loose parts according to claim 1, characterized in that: The beam plate includes a suspension part and a hoisting part. The hanging holes are opened on the suspension part. The hoisting parts are spaced apart on the top of the suspension part. The hoisting holes are elongated holes, and the center of the elongated holes is located on the axis of symmetry of two adjacent hanging holes. The hoisting holes are opened on the hoisting part and extend to the suspension part.

7. A pre-coating treatment fixture for loose parts according to claim 1, characterized in that: It also includes a reinforcing rib assembly, which consists of two sets and is respectively disposed at both ends of the beam plate. Each set of the reinforcing rib assembly includes two rib plates symmetrically disposed on both sides of the beam plate. The rib plates are perpendicular to the beam plate, their sides are fixed to the beam plate, and their bottom surfaces are fixed to the support plate.

8. A pre-coating treatment fixture for loose parts according to claim 7, characterized in that: The stiffening plate is triangular.

9. A pre-coating treatment fixture for loose parts according to claim 7, characterized in that: The beams, support plates, and stiffening plates are fixed to each other by welding.

10. A pre-coating treatment fixture for loose parts according to claim 9, characterized in that: The thickness of the beams, support plates, and stiffeners is 5mm.

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